Patent Application
20230272922
The present subject matter relates generally to oven appliances, and more particularly, to methods of operating an oven appliance for localized, high-heat cooking.
Conventional residential and commercial oven appliances generally include a cabinet that includes a cooking chamber for receipt of food items for cooking. Multiple gas or electric heating elements are positioned within the cabinet for heating the cooking chamber to cook food items located therein. The heating elements can include, for example, a bake heating assembly positioned at a bottom of the cooking chamber and a separate broiler heating assembly positioned at a top of the cooking chamber.
Typically, food or utensils for cooking are placed on wire racks within the cooking chamber and above the bake heating assembly. A temperature sensor within the cooking chamber may be used to maintain the cooking chamber at a select temperature. In some instances, protective or radiant plates are positioned over the bake heating assembly to protect the bake heating assembly or assist in evenly distributing heat across the bottom of the cooking chamber. Nonetheless, certain food items, such as pizzas or breads, may benefit from very high, localized (i.e., non-diffuse) heat, or a cooking utensil with a relatively high thermal mass may be used. This may be case when using a stone or specialized high-heat pan (e.g., to trap heat against the bottom of flat-breads or pizza) or a cast iron skillet. In some instances, such as when baking certain breads, high heat is desirable for certain portions of a cooking phase (e.g., to help the bread rise), but may risk damaging or over cooking food if sustained throughout the entire cooking phase.
Difficulties may arise in executing localized, high-heat operations, or with using cooking utensils that are heavy or otherwise have a high thermal mass. In particular, it may be difficult to consistently or appropriately heat the cooking chamber or cooking utensils therein. The wide variation for temperatures within an oven appliance (e.g., between the top and the bottom of the cooking chamber) may make it especially difficult to achieve consistent or desired temperatures, not simply within the cooking chamber generally, but also on the cooking surface supporting a food item thereon.
Certain problems may be exacerbated by cooking multiple items in relatively quick succession. For instance, if a user attempts to cook multiple items, one right after the other, trapped heat may cause the later-cooked items to reach certain internal temperatures faster or at a different rate than the earlier-cooked items. This can result in inconsistent or unsuitable (e.g., burned) food items. As a result, typical cooking appliances require all heating elements to completely deactivate while the cooking chamber is allowed to cool significantly (e.g., to within 100° Fahrenheit of the ambient temperature).
Accordingly, it would be advantageous to provide an oven appliance or methods for safely generating high heat on a specific cooking surface within the oven appliance without unduly trapping heat or maintaining high-heat operation beyond what is appropriate for a particular food item. Additionally or alternatively, it would be advantageous to provide an oven appliance or methods for consistently cooking separate items at a high heat and in quick succession (e.g., without requiring the oven to completely deactivate or return to a temperature near the ambient temperature).
Aspects and advantages of the invention will be set forth in part in the following description, or may be obvious from the description, or may be learned through practice of the invention.
In one exemplary aspect of the present disclosure, a method of operating an oven appliance is provided. The method may include directing a top heating element according to a preheat cycle comprising a predetermined preheat heat output of the top heating element and determining expiration of the preheat cycle. The method may further include directing, in response determining expiration of the preheat cycle, the top heating element according to a standby cycle that includes a predetermined standby temperature within a cooking chamber. The method may still further include determining expiration of the standby cycle and directing, in response to determining expiration of the standby cycle, the top heating element to a predetermined cooking threshold within the cooking chamber according to a first cooking cycle that includes a heat output of the top heating element.
In another exemplary aspect of the present disclosure, a method of operating an oven appliance is provided. The method may include directing a top heating element to a predetermined cooking threshold within a cooking chamber according to a first cooking cycle. The first cooking cycle may include a high heat output of the top heating element. The method may further include detecting an oven temperature greater than or equal to the predetermined cooking threshold, The method may still further include directing, in response to detecting the oven temperature greater than or equal to the predetermined cooking threshold, the top heating element according to a second cooking cycle. The second cooking cycle may include a periodic heat output and a predetermined cooking temperature within the cooking chamber. The method may yet further include directing, following the second cooking cycle, the top heating element to an inhibited state according to a recharge cycle; detecting an oven temperature less than a minimum recharge threshold while the top heating element is in the inhibited state according to the recharge cycle; directing a bottom heating element according to the recharge cycle. The recharge cycle may include a high heat output of the bottom heating element in response to detecting the oven temperature less than the minimum recharge threshold. The method may also include directing the bottom heating element to an inhibited state according to a standby cycle following the recharge cycle.
In yet another exemplary aspect of the present disclosure, a method of operating an oven appliance is provided. The method may include directing a top heating element according to a first cooking cycle that includes a high heat output of the top heating element. The method may also include detecting an oven temperature greater than or equal to the predetermined cooking threshold within the cooking chamber and directing, in response to detecting the oven temperature greater than or equal to the predetermined cooking threshold, the top heating element according to a second cooking cycle for a set time period. The second cooking cycle may include a periodic heat output and a second-cycle predetermined cooking temperature within the cooking chamber. The method may further include determining expiration of the set time period and adjusting heat within the cooking chamber in response to determining expiration of the set time period.
These and other features, aspects and advantages of the present invention will become better understood with reference to the following description and appended claims. The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.
A full and enabling disclosure of the present invention, including the best mode thereof, directed to one of ordinary skill in the art, is set forth in the specification, which makes reference to the appended figures.
Reference now will be made in detail to embodiments of the invention, one or more examples of which are illustrated in the drawings. Each example is provided by way of explanation of the invention, not limitation of the invention. In fact, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope of the invention. For instance, features illustrated or described as part of one embodiment can be used with another embodiment to yield a still further embodiment. Thus, it is intended that the present invention covers such modifications and variations as come within the scope of the appended claims and their equivalents.
As used herein, the term “or” is generally intended to be inclusive (i.e., “A or B” is intended to mean “A or B or both”). The terms “first,” “second,” and “third” may be used interchangeably to distinguish one component from another and are not intended to signify location or importance of the individual components. The terms “upstream” and “downstream” refer to the relative flow direction with respect to fluid flow in a fluid pathway. For example, “upstream” refers to the flow direction from which the fluid flows, and “downstream” refers to the flow direction to which the fluid flows. The terms “coupled,” “fixed,” “attached to,” and the like refer to both direct coupling, fixing, or attaching, as well as indirect coupling, fixing, or attaching through one or more intermediate components or features, unless otherwise specified herein.
Approximating language, as used herein throughout the specification and claims, may be applied to modify any quantitative representation that could permissibly vary without resulting in a change in the basic function to which it is related. Accordingly, a value modified by a term or terms, such as “generally,” “about,” “approximately,” and “substantially,” are not to be limited to the precise value specified. In at least some instances, the approximating language may correspond to the precision of an instrument for measuring the value, or the precision of the methods or machines for constructing or manufacturing the components or systems. For example, the approximating language may refer to being within a 10 percent margin (i.e., including values within ten percent greater or less than the stated value).
Referring now to the drawings,
Although aspects of the present subject matter are described herein in the context of a double oven appliance 100, it should be appreciated that oven appliance 100 is provided by way of example only. Other oven or range appliances having different configurations, different appearances, or different features may also be utilized with the present subject matter as well (e.g., single ovens, electric cooktop ovens, induction cooktops ovens, etc.).
Generally, oven appliance 100 has a cabinet 101 that defines a vertical direction V, a longitudinal direction L and a transverse direction T. The vertical, longitudinal and transverse directions are mutually perpendicular and form an orthogonal direction system. In this regard, as used herein, the terms “cabinet,” “housing,” and the like are generally intended to refer to an outer frame or support structure for appliance 100, e.g., including any suitable number, type, and configuration of support structures formed from any suitable materials, such as a system of elongated support members, a plurality of interconnected panels, or some combination thereof. It should be appreciated that cabinet 101 does not necessarily require an enclosure and may simply include open structure supporting various elements of appliance 100. By contrast, cabinet 101 may enclose some or all portions of an interior of cabinet 101. It should be appreciated that cabinet 101 may have any suitable size, shape, and configuration while remaining within the scope of the present subject matter.
Double oven appliance 100 includes an upper oven 120 and a lower oven 140 positioned below upper oven 120 along the vertical direction V. Upper and lower ovens 120 and 140 include oven or cooking chambers 122 and 142, respectively, configured for the receipt of one or more food items to be cooked. Specifically, cabinet 101 defines a respective opening for each cooking chamber 122 and 142. For instance, an upper opening 123 may be defined (e.g., along the transverse direction T) to access upper cooking chamber 122.
Double oven appliance 100 includes an upper door 124 and a lower door 144 in order to permit selective access to cooking chambers 122 and 142, respectively (e.g., via the corresponding opening). Handles 102 are mounted to upper and lower doors 124 and 144 to assist a user with opening and closing doors 124 and 144 in order to access cooking chambers 122 and 142. As an example, a user can pull on handle 102 mounted to upper door 124 to open or close upper door 124 and access cooking chamber 122. Glass window panes 104 provide for viewing the contents of cooking chambers 122 and 142 when doors 124, 144 are closed and also assist with insulating cooking chambers 122 and 142. Optionally, a seal or gasket (e.g., gasket 114) extends between each door 124, 144 and cabinet 101 (e.g., when the corresponding door 124 or 144 is in the closed position). Such gasket may assist with maintaining heat and cooking fumes within the corresponding cooking chamber 122 or 142 when the door 124 or 144 is in the closed position. Moreover, heating elements, such as electric resistance heating elements, gas burners, microwave elements, etc., are positioned within upper and lower oven 120 and 140.
A control panel 106 of double oven appliance 100 provides selections for user manipulation of the operation of double oven appliance 100. For example, a user can touch control panel 106 to trigger one of user inputs 108. In response to user manipulation of user inputs 108, various components of the double oven appliance 100 can be operated. Control panel 106 may also include a display 112, such as a digital display, operable to display various parameters (e.g., temperature, time, current phase or cycle, etc.) of the double oven appliance 100.
Generally, oven appliance 100 may include a controller 110 in operative communication (e.g., operably coupled via a wired or wireless channel) with control panel 106. Control panel 106 of oven appliance 100 may be in communication with controller 110 via, for example, one or more signal lines or shared communication busses, and signals generated in controller 110 operate oven appliance 100 in response to user input via user input devices 108. Input/Output (“I/O”) signals may be routed between controller 110 and various operational components of oven appliance 100 such that operation of oven appliance 100 can be regulated by controller 110. In addition, controller 110 may also be in communication with one or more sensors, such as a first temperature sensor (TS1) 176-1 (e.g., bottom temperature sensor) or a second temperature sensor (TS2) 176-2 (e.g., oven temperature sensor) (
Controller 110 is a “processing device” or “controller” and may be embodied as described herein. Controller 110 may include a memory and one or more microprocessors, microcontrollers, application-specific integrated circuits (ASICS), CPUs or the like, such as general or special purpose microprocessors operable to execute programming instructions or micro-control code associated with operation of oven appliance 100, and controller 110 is not restricted necessarily to a single element. The memory may represent random access memory such as DRAM, or read only memory such as ROM, electrically erasable, programmable read only memory (EEPROM), or FLASH. In one embodiment, the processor executes programming instructions stored in memory. The memory may be a separate component from the processor or may be included onboard within the processor. Alternatively, controller 110 may be constructed without using a microprocessor (e.g., using a combination of discrete analog or digital logic circuitry; such as switches, amplifiers, integrators, comparators, flip-flops, AND gates, and the like) to perform control functionality instead of relying upon software.
Turning now to
As shown, upper oven includes one or more heating elements to heat upper cooking chamber 122 (e.g., as directed by controller 110 as part of a cooking operation). For instance, a bottom heating element 150 may be mounted at a bottom portion of upper cooking chamber 122 (e.g., above bottom wall 130). Additionally or alternatively, a top heating element 152 may be mounted at a top portion of upper cooking chamber 122 (e.g., below top wall 128). Bottom heating element 150 and top heating element 152 may be used independently or simultaneously to heat upper cooking chamber 122, perform a baking or broil operation, perform a cleaning cycle, etc.
The heating elements 150, 152 may be provided as any suitable heater for generating heat within upper cooking chamber 122. For instance, either heating element may include an electric heating element (e.g., resistance wire elements, radiant heating element, electric tubular heater or CALROD®, halogen heating element, etc.). Additionally or alternatively, either heating element may include a gas burner.
In optional embodiments, a cooking plate 154 is provided within upper cooking chamber 122. Specifically, cooking plate 154 is disposed above bottom heating element 150 and may generally cover the same. Along with being disposed above bottom heating element 150, cooking plate 154 is disposed below top heating element 152 and may be disposed below (e.g., at a lower vertical height than) each of the embossed ribs. In certain embodiments, cooking plate 154 is located at or near the same vertical height as the bottommost edge of upper opening 123. Thus, cooking plate 154 may generally be disposed proximal to the lower end of the cooking chamber 122.
When mounted within cooking chamber 122, cooking plate 154 may extend along the transverse direction T between a front end and a rear end, along the lateral direction L between a first lateral end and a second lateral end, and along the vertical direction V between an upper cooking surface 156 and a lower surface. The cooking surface 156, in particular, may be disposed between the bottom wall 130 and the top wall 128. Moreover, cooking surface 156 may be proximal to the bottom wall 130 and, thus, distal to the top wall 128. In some embodiments, cooking plate 154 is provided as a solid nonpermeable member. Thus, food or fluids may be prevented from passing through cooking plate 154 (e.g., along the vertical direction V or perpendicular to cooking surface 156). In certain embodiments, cooking plate 154 includes or is formed from a conductive metal material, such as cast iron, steel, or aluminum (e.g., including alloys thereof). In additional or alternative embodiments, cooking plate 154 includes or is formed from a heat-retaining material, such as clay, stone (e.g., cordierite), ceramic, cast iron, or ceramic-coated carbon steel.
As shown, the cooking plate 154 may be disposed directly above (e.g., in vertical alignment with) the bottom heating element 150. Moreover, cooking plate 154 may define a horizontal footprint that spans across horizontal footprint of bottom heating element 150. In turn, cooking plate 154 may fully cover bottom heating element 150. When mounted within cooking chamber 122, cooking plate 154 may block or otherwise prevent access to bottom heating element 150, such as by a user reaching into the cooking chamber 122. Additionally or alternatively, the bottom heating element 150 may be held out of view such that a user is unable to see the bottom heating element 150. During use, heat generated at bottom heating element 150 may be directed upward to a lower surface of cooking plate 154. As noted, bottom heating element 150 may be vertically aligned with (e.g., directly beneath) the cooking plate 154. The heat generated at bottom heating element 150 may thus be guided primarily or initially to the underside of cooking plate 154.
One or more temperature sensors (e.g., TS1176-1) may be provided proximal to the bottom wall 130 (i.e., distal to top wall 128) in or otherwise within thermal communication with cooking chamber 122, for instance, to detect the temperature of bottom heating element 150 or cooking plate 154. Optionally, TS1176-1 may be mounted or held between the bottom heating element 150 and the cooking plate 154. In some embodiments, a TS1176-1 is disposed against (e.g., a bottom surface of) cooking plate 154. As an example, TS1176-1 may be disposed on a bottom surface of cooking plate 154 (e.g., when cooking plate 154 is mounted within cooking chamber 122). As an additional or alternative example, TS1176-1 may be held within a recess in cooking plate 154. As an additional or alternative example, TS1176-1 may be embedded within cooking plate 154.
Additionally or alternatively, one or more temperature sensors (e.g., TS2176-2) may be provided proximal to the top wall 128 (i.e., distal to bottom wall 130) in or otherwise within thermal communication with cooking chamber 122, for instance, to detect the temperature of top heating element 152 or cooking chamber 122, generally. Optionally, TS2176-2 may be mounted between the top wall 128 and the cooking plate 154 (e.g., above TS1176-1). In some embodiments, TS2176-2 is mounted at or below heating element 152. Specifically, TS2176-2 may be laterally positioned between the side walls 132 (e.g., at substantially the lateral middle of cooking chamber 122). As an example, TS2176-2 may be connected to or otherwise supported on back wall 126 (e.g., via a mechanical fastener, clip, or hook).
When assembled, the temperature sensor(s) 176-1, 176-2 may be operably coupled to controller 110. Moreover, the controller 110 may be configured to control top heating element 152 or bottom heating element 150 based on one or more temperatures detected at the temperature sensor(s) 176-1, 176-2 (e.g., as part of a cooking operation). In some embodiments, a cooking operation initiated by the controller 110 may thus include detecting one or more temperatures of TS1176-1 and TS2176-2, and directing heat output from (e.g., a heat setting of) top heating element 152 or bottom heating element 150 based on the detected temperature(s).
As an example, and turning to
As shown in
In some embodiments, a multi-threshold cycle is provided for the preheat phase CP. In a multi-threshold preheating cycle, the bottom heater output P-1 may be initially directed to at a relatively high bottom output setting (e.g., between 80% and 100%) while the top heater output P-2 is restricted (e.g., at 0%). As shown, temperature (e.g., as measured along TL-1 and TL-2) increases within the oven chamber until one or more pre-cooking (e.g., preheating) thresholds are met. In the illustrated embodiment, the preheating cycle may continue at the bottom heat output setting until a bottom sensor preheat threshold Bp is met or exceeded (e.g., at TL-1). Subsequently (e.g., in response to Bp being met or exceed), the preheat cycle may direct the bottom heater output P-1 to an inhibited (e.g., inactive or relatively low, such as between 0% and 25%) state while the top heater output P-2 is directed to a relatively high top output setting (e.g., between 80% and 100%). The preheating cycle may then continue at the top heat output setting until a top sensor preheat threshold Op is met or exceeded (e.g., at TL-2). The preheating cycle and phase CP may end or be halted in response to the top sensor preheat threshold Op being met or exceeded. Notably, the cooking plate 166 or surface 168 within the cooking chamber 122 may be brought to a relatively high temperature without reaching excessive or undesirable temperatures within the rest of cooking chamber 122.
It is noted that although a multi-threshold cycle for a preheat phase CP is illustrated for a high-intensity-cooking operation in
Following the preheat cycle or phase CP (e.g., immediately thereafter or in response to the end of the preheat phase CP), a new phase with one or more additional cycles, such as a cooking cycle or a standby cycle may be executed. In the illustrated embodiments, a maintenance or standby cycle is provided as part of a standby phase MP. As shown, in the standby phase MP, bottom heating element 150 or top heating 152 is/are generally directed to maintain the bottom temperature and oven temperatures at a corresponding predetermined target or temperature, for example using a proportional-integral-derivative (PID) control scheme or within a range of temperatures (e.g., a set range relative to Bp or Op). In one embodiment, the standby cycle of the standby phase MP is characterized by activation of both the bottom heating element and top heating element. Activation of bottom heating element and top heating element may occur sequentially or simultaneously.
Following the preheat phase CP or standby phase MP, a cooking phase CC may be initiated to execute one or more cooking cycles (e.g., in response to a set time condition or a directed user input). Generally, such cooking cycles direct the bottom heating element 150 or top heating element 152 according to a predetermined scheme or sequence.
In some embodiments, a first cooking (e.g., initial broil) cycle IB is provided with the cooking phase CC. Optionally, upon initiating the cooking phase CC, a first cooking (e.g., initial broil) cycle IB is started. The top heating element may be activated according to the first cooking cycle IB. For instance, the first cooking cycle IB may direct the top heating element to a predetermined cooking target or threshold AF (e.g., PID setpoint or set temperature range for thermostatic control). Optionally, the predetermined cooking threshold AF may be equal to a predetermined maximum threshold TX. Additionally or alternatively, first cooking cycle may include a first duty cycle or heat output (e.g., heat output setting) for the top heating element. Thus, activation of the top heating element may be directed to the first heat output. In the illustrated embodiments, the first heat output is a high heat output, such as 100% or a duty cycle wherein the top heating element is maintained at, for example, a continuous active state for the duration of the first cooking cycle IB (e.g., until a set time or predetermined cooking threshold AF is reached). In the illustrated embodiments, the first cooking cycle IB or activation of the top heating element may continue until the predetermined cooking threshold AF is exceeded. Optionally, the bottom heating element may be held in the inhibited state (e.g., inactive or, alternatively, reduced state, such as between 0% and 25%) as part of the first cooking cycle IB (e.g., as shown). Alternatively, though, the bottom heating element may be directed to its own first duty cycle or heat output (e.g., heat output setting) that is separate from the first duty cycle or heat output for the top heating element Separate from or in addition to the first cooking cycle IB, a second cooking (e.g., revised broil or bake) cycle SB may be initiated for the cooking phase CC. The second cooking cycle SB may include a periodic heat output (e.g., for the top heating element or the bottom heating element) or a predetermined temperature (e.g., PID setpoint or set temperature range for thermostatic control), which may be separate from or identical to the predetermined cooking threshold AF of the first cooking cycle IB. The second cooking cycle SB may include, for instance, a second duty cycle or heat output (e.g., low output setting) for the top heating element. Thus, activation (i.e., reactivation) of the top heating element may be directed to the second heat output. Optionally, the second heat output may be less than the first heat output. In other words, the active time of the duty cycle or percentage of power output at the top heating element for the second heat output may be less than that of the first heat output. Alternatively, the second heat output may be equal to the first heat output. In some embodiments, the bottom heating element is directed to its own second duty cycle or heat output (e.g., heat output setting) that is separate from the second duty cycle or heat output for the top heating element. In other words, the second cooking cycle may include a second heat output for the bottom heating element. Additionally or alternatively, a predetermined temperature (e.g., PID setpoint or set temperature range for thermostatic control) may be provided for the bottom heating element (e.g., to be detected at TS2).
As noted, a predetermined temperature for the top heating element may be included with the second cooking cycle SB. For instance, the predetermined temperature may include or be provided as a predetermined maximum threshold TX (e.g., oven temperature value selected by a user or set by a fixed value from the user-selected value). Thus, activation of the top heating element may continue until the predetermined maximum threshold TX is met or exceeded. Upon being exceeded, the second cooking cycle SB may (e.g., temporarily) restrict or halt top power output P-2. In turn, activation of the top heating element during the second cooking cycle SB may be according to the predetermined maximum threshold TX. Along with the predetermined maximum threshold TX, a predetermined minimum threshold TN (e.g., oven temperature value selected by a user or set by a fixed value from the user-selected value), which is less than the predetermined maximum threshold TX, may be provided. Specifically, the predetermined minimum threshold TN may set a baseline for activation of top heating element. For instance, upon falling below the predetermined minimum threshold TN, the second cooking cycle SB may increase power output P-2 (e.g., to the second duty cycle or heat output). In turn, activation of the top heating element during the second cooking cycle SB may be further according to the predetermined minimum threshold TN.
As would be understood in light of the present disclosure, the second cooking cycle SB may continue to cycle (increase-decrease heat generation at) the top heating element according to the corresponding predetermined temperature (e.g., between the predetermined minimum and maximums TX and TN), for instance, until a user-selected endpoint (e.g., time limit for the cooking phase CC or a general input indicating a new temperature for the cooking chamber or an end to cooking operations altogether).
In some embodiments, a recharge phase RP including a recharge cycle is initiated following the cooking phase CC (e.g., immediately thereafter or following an intermediate period immediately following the cooking phase CC). Generally, the recharge phase RP may be understood as a phase in which the cooking chamber is prepared for cooking additional or successive food items in a subsequent cooking cycle. As an example, the recharge phase RP may include a recharge cycle directing one or both of the heating elements, to an inhibited state (e.g., for a set recharge time period of no heat time). After being directed to the inhibited state (e.g., following expiration of the set recharge timer measuring a portion the recharge no heat time), the bottom heating element may be activated and directed to a relatively high bottom output setting (e.g., between 80% and 100%) while the top heater output P-2 is restricted (e.g., at 0%). Optionally, activation of the bottom heating element is conditioned (e.g., separate from or in addition to the set recharge timer) on a temperature at the oven temperature sensor TS2. For instance, the temperature at the oven temperature sensor TS2 may be required to be less than a recharge minimum threshold (Rmin). Upon being activated, the bottom heating element may continue at the bottom output setting, for instance, until a recharge maximum threshold (Rmax) is measured (e.g., at the bottom temperature sensor TS1). Notably, in practice, the duration of the recharge phase RP may be less than the duration of the preheat cycle CP. Advantageously, excessive heat may be prevented from accumulating within the cooking chamber 122, generally, while maintaining the cooking plate 166 or surface 168 at a relatively high temperature (e.g., for cooking additional or successive food items).
Following the recharge phase RP, one or more additional standby or cooking phases may be initiated, as would be understood in light of the present disclosure.
As shown in
In some embodiments, a single-limit cycle is provided for the preheat phase CP. In a single-limit preheating cycle, one or both heater outputs P-1, P-2 is directed according to a single limit (e.g., time limit or temperature threshold at TS1 or TS2). For instance, the bottom heater output P-1 may directed to a bottom output setting that is periodic (e.g., cycles on-off according to a corresponding duty cycle for the preheating cycle). Additionally or alternatively, the top heater output P-2 may be directed to a top output setting that is periodic (e.g., cycles on-off according to a corresponding duty cycle for the preheating cycle). In the illustrated embodiment, the preheating cycle may continue at the top or bottom heat output setting until a top sensor preheat threshold Op is met or exceeded (e.g., at TL-2). The preheating cycle and phase CP may end or be halted in response to the top sensor preheat threshold Op being met or exceeded.
It is noted that although a single-limit cycle for a preheat phase CP is illustrated for a bread-cooking operation in
Following the preheat cycle or phase CP (e.g., immediately thereafter or in response to the end of the preheat phase CP), a new phase with one or more additional cycles, such as a cooking cycle or a standby cycle may be executed. In the illustrated embodiments, a maintenance or standby cycle is provided as part of a standby phase MP. As shown, in the standby phase MP, bottom heating element 150 or top heating element 152 are generally directed to maintain the cooking surface temperature and oven temperatures at a standby target or temperature, for example using a proportional-integral-derivative (PID) control scheme or within a range of temperatures. In one embodiment, the standby cycle of the standby phase MP is characterized by activation of both the bottom heating element and top heating element. Activation of bottom heating element and top heating element may occur sequentially or simultaneously.
Following the preheat phase CP or standby phase MP, a cooking phase CC may be initiated to execute one or more cooking cycles (e.g., in response to a set time condition or a directed user input). Generally, such cooking cycles direct the bottom heating element 150 or top heating element 152 according to a predetermined scheme or sequence.
In some embodiments, a first cooking (e.g., initial broil) cycle IB is provided with the cooking phase CC. Optionally, upon initiating the cooking phase CC, a first cooking (e.g., initial broil) cycle IB is started. The top heating element may be activated according to the first cooking cycle IB. For instance, the first cooking cycle IB may direct the top heating element to a predetermined cooking target or threshold AF (e.g., PID setpoint or set temperature range for thermostatic control). Optionally, the predetermined cooking threshold AF may be equal to a predetermined maximum threshold TX. Additionally or alternatively, first cooking cycle may include a first duty cycle or heat output (e.g., heat output setting) for the top heating element. Thus, activation of the top heating element may be directed to the first heat output. In the illustrated embodiments, the first heat output is a high heat output, such as 100% or a duty cycle wherein the top heating element is maintained at, for example, a continuous active state for the duration of the first cooking cycle IB (e.g., until a set time or predetermined cooking threshold AF is reached). In the illustrated embodiments, the first cooking cycle IB or activation of the top heating element may continue until the predetermined temperature AF is exceeded. Optionally, the bottom heating element may be held in the inhibited state as part of the first cooking cycle IB (e.g., as shown). Alternatively, though, the bottom heating element may be directed to its own first duty cycle or heat output (e.g., heat output setting) that is separate from the first duty cycle or heat output for the top heating element.
Separate from or in addition to the first cooking cycle IB, a second cooking (e.g., revised broil or bake) cycle SB may be initiated for the cooking phase CC. The second cooking cycle SB may include a periodic heat output (e.g., for the top heating element or the bottom heating element) or a predetermined temperature (e.g., PID setpoint or set temperature range for thermostatic control), which may be separate from or identical to the predetermined temperature of the first cooking cycle IB. The second cooking cycle SB may include, for instance, a second duty cycle or heat output (e.g., low output setting) for the top heating element. Thus, activation (i.e., reactivation) of the top heating element may be directed to the second heat output. Optionally, the second heat output may be less than the first heat output. In other words, the active time of the duty cycle or percentage of power output at the top heating element for the second heat output may be less than the first heat output. Alternatively, the second heat output may be equal to the first heat output. In some embodiments, the bottom heating element is directed to its own second duty cycle or heat output (e.g., heat output setting) that is separate from the second duty cycle or heat output for the top heating element. In other words, the second cooking cycle may include a second heat output for the bottom heating element. Additionally or alternatively, a predetermined temperature (e.g., PID setpoint or set temperature range for thermostatic control) may be provided for the bottom heating element (e.g., to be detected at TS2).
As noted, a predetermined temperature for the top heating element may be included with the second cooking cycle SB. For instance, the predetermined temperature may include or be provided as a predetermined maximum threshold TX (e.g., oven temperature value selected by a user or set by a fixed value from the user-selected value). Thus, activation of the top heating element may continue until the predetermined maximum threshold TX is met or exceeded. Upon being exceeded, the second cooking cycle SB may (e.g., temporarily) restrict or halt top power output P-2. In turn, activation of the top heating element during the second cooking cycle SB may be according to the predetermined maximum threshold TX. Along with the predetermined maximum threshold TX, a predetermined minimum threshold TN (e.g., oven temperature value selected by a user or set by a fixed value from the user-selected value), which is less than the predetermined maximum threshold TX, may be provided. Specifically, the predetermined minimum threshold TN may set a baseline for activation of top heating element. For instance, upon falling below the predetermined minimum threshold, the second cooking cycle SB may increase power output P-2 (e.g., to the second duty cycle or heat output). In turn, activation of the top heating element during the second cooking cycle SB may be further according to the predetermined minimum threshold TN.
As would be understood in light of the present disclosure, the second cooking cycle SB may continue to cycle (increase-decrease heat generation at) the top heating element according to the corresponding predetermined temperature (e.g., between the predetermined minimum and maximums TX and TN), for instance, until a set endpoint. In the illustrated embodiments, a set time period ES is provided. Specifically, the set time period ES may dictate the length of time for which the second cooking cycle SB may continue (e.g., measured from the start of the second cooking cycle SB). Upon expiration of the set time period ES, the second cooking cycle SB may end (e.g., to initiate another cycle or phase, such as a third cooking cycle).
Separate from or in addition to the first or second cooking cycles IB or SB, a third (e.g., post rise) cooking cycle DB may be initiated for the cooking phase CC. The third cooking cycle DB may include a periodic heat output (e.g., for the top heating element or the bottom heating element) or a predetermined temperature (e.g., PID setpoint or set temperature range for thermostatic control), which may be distinct from (e.g., less than) the predetermined cooking threshold AF of the first cooking cycle IB or the second cooking cycle SB. The third cooking cycle DB may include, for instance, a third duty cycle or heat output (e.g., low output setting) for the top heating element. Thus, activation (i.e., reactivation) of the top heating element may be directed to the third heat output. Optionally, the third heat output may be less than the second heat output. In other words, the active time of the duty cycle or percentage of power output at the top heating element for the third heat output may be less than the second heat output. In some embodiments, the bottom heating element is directed to its own third duty cycle or heat output (e.g., heat output setting) that is separate from the third duty cycle or heat output for the top heating element. In other words, the third cooking cycle may include a third heat output for the bottom heating element. Additionally or alternatively, a predetermined temperature (e.g., PID setpoint or set temperature range for thermostatic control) may be provided for the bottom heating element (e.g., to be detected at TS2).
As noted, a predetermined temperature for the top heating element may be included with the third cooking cycle DB. The predetermined temperature of the third cooking cycle may be less than the predetermined temperature of the second cooking cycle. The predetermined temperature of the third cooking cycle may include or be provided as a predetermined maximum threshold DX (e.g., oven temperature value selected by a user or set by a fixed value from the user-selected value). Thus, activation of the top heating element may continue until the predetermined maximum threshold DX is met or exceeded. Upon being exceeded, the third cooking cycle DB may (e.g., temporarily) restrict or halt top power output P-2. In turn, activation of the top heating element during the third cooking cycle DB may be according to the predetermined maximum threshold DX. Along with the predetermined maximum threshold DX, a predetermined minimum threshold DN (e.g., oven temperature value selected by a user or set by a fixed value from the user-selected value), which is less than the predetermined maximum threshold DX, may be provided. Specifically, the predetermined minimum threshold DN may set a baseline for activation of top heating element. For instance, upon falling below the predetermined minimum threshold DN, the third cooking cycle DB may increase power output P-2 (e.g., to the third duty cycle or heat output). In turn, activation of the top heating element during the third cooking cycle DB may be further according to the predetermined minimum threshold DN.
As would be understood in light of the present disclosure, the third cooking cycle DB may continue to cycle (increase-decrease heat generation at) the top heating element according to the corresponding predetermined temperature (e.g., between the predetermined minimum and maximums DX and DN), for instance, until a user-selected endpoint (e.g., time limit for the cooking phase CC or a general input indicating a new temperature for the cooking chamber or an end to cooking operations altogether).
Following the cooking phase, one or more additional standby or recharge phases may be initiated, as would be understood in light of the present disclosure.
Referring now to
The methods (e.g., 800, 900, or 1000) may occur as, or as part of, a cooking operation (e.g., short-cycle cooking operation) of oven appliance 100. In particular, the methods (e.g., 800, 900, or 1000) disclosed herein may advantageously facilitate one portion of a cooking chamber being brought to an appropriate (e.g., relatively high) temperature for a discrete period without reaching excessive or undesirable temperatures within the rest of the cooking chamber. Additionally or alternatively, the methods (e.g., 800, 900, or 1000) may advantageously permit multiple cooking cycles to be performed in relatively quick succession (e.g., without requiring significant cooling of the cooking chamber).
It is noted that the order of steps within methods 800, 900, and 1000 are for illustrative purposes. Moreover, none of the methods 800, 900, and 1000 are mutually exclusive. In other words, methods within the present disclosure may include one or more of methods 800, 900, and 1000. All may be adopted or characterized as being fulfilled in a common operation. Except as otherwise indicated, one or more steps in the below method 800, 900, or 1000 may be changed, rearranged, performed in a different order, or otherwise modified without deviating from the scope of the present disclosure.
Turning especially to
At 820, the method 800 includes determining expiration of the preheat cycle. As described above, the preheat cycle may include a set endpoint, such as an set time condition or duration of the preheat cycle or one or more temperature thresholds. Reaching the set endpoint may thus result in a determined expiration of the preheat cycle.
Expiration of the preheat cycle may prompt preheat heat output for the top heating element or the bottom heating element to be halted. In optional embodiments, the preheat cycle includes an oven temperature preheat threshold (e.g., threshold for temperature measured at the oven temperature sensor). In response to detecting a temperature at the oven temperature sensor that is greater than the oven temperature preheat threshold, the preheat heat output for the top heating element or the bottom heating element may be halted. Additionally or alternatively, the preheat heat output for the bottom heating element may be halted and the preheat heat output for the top heating element may be initiated. In additional or alternative embodiments, the preheat cycle includes a bottom temperature preheat threshold (e.g., threshold for temperature measured at the bottom temperature sensor). In response to detecting a temperature at the bottom temperature sensor that is greater than the bottom temperature preheat threshold, the preheat heat output for the top heating element or the bottom heating element may be halted.
At 830, the method 800 includes directing one or more heating elements according to a standby cycle in response to 820. In particular, the top heating element or the bottom heating element may be directed to a predetermined standby temperature (e.g., target temperature, as described above). The top heating element may be directed to generate heat (e.g., at a standby heat output) in order to meet or maintain the standby temperature (e.g., using a PID scheme or thermostatic range of temperatures with a maximum temperature and a minimum temperature). In some such embodiments, the standby temperature for the top heating element is an oven temperature detected at the oven temperature sensor. Additionally or alternatively, the bottom heating element may be directed to generate heat (e.g., at a standby heat output) in order to meet or maintain the standby temperature (e.g., using a PID scheme or thermostatic range of temperatures with a maximum temperature and a minimum temperature). In some such embodiments, the standby temperature for the bottom heating element is a bottom temperature detected at the bottom temperature sensor. The standby temperature for the top heating element may be distinct from (e.g., lower than) the standby temperature for the bottom heating element.
At 840, the method 800 includes determining expiration of the standby cycle. The standby cycle may include a set input or condition to halt the standby cycle or otherwise indicate expiration of the standby cycle. For instance, the standby cycle may include a set time condition or duration of the standby cycle. Such a time condition may be measured as a countdown or count up (e.g., by a timer initiated at the start of the standby cycle). Reaching the end of the countdown or the count up may, in turn, indicate expiration of the standby cycle. Additionally or alternatively, expiration of the standby cycle may be conditioned on a user input. Such a user input may be received during the standby cycle (e.g., at the control panel or user interface of the oven appliance) and indicate that a user wants to start another (e.g., cooking) cycle.
At 850, the method 800 includes directing one or more heating elements according to a first cooking cycle in response to 840. In particular, the top heating element or the bottom heating element may be directed to a predetermined cooking threshold. In some embodiments, the top heating element is directed to a corresponding predetermined cooking threshold (e.g., to be detected at the oven temperature sensor). A top heat output may be included with the first cooking cycle that is a high heat output (e.g., continuously active or, alternatively, elevated output, such as between 80% and 100%). Thus, the first cooking cycle may drive or activate the top heating element at the high heat output until a temperature is detected at the oven temperature sensor that is greater than or equal to the predetermined cooking threshold of the top heating element. In optional embodiments, the bottom heating element is held in an inhibited state (e.g., inactive or, alternatively, reduced state, such as between 0% and 25%) according to the first cooking cycle during the high heat output of the top heating element.
At 860, the method 800 includes directing the heating elements according to a second cooking cycle following the first cooking cycle. For instance, the second cooking cycle may be directed or prompted in response to detecting an oven temperature that is greater than or equal to the predetermined cooking threshold (e.g., following the first cooking cycle). In some embodiments, the heat output for the top heating element is lower in the second cooking cycle than in the first cooking cycle. For instance, the second cooking cycle may include a periodic heat output for the top heating element (i.e., a top heat output of the second cooking cycle that is less than the top heat output of the first cooking cycle). Additionally or alternatively, the second cooking cycle may include a predetermined cooking temperature (e.g., target temperature for a PID control scheme or range of temperatures) that the top heating element maintains for the duration of the second cooking cycle.
Separate from or in addition to the heat output for the top heating element, the second cooking cycle may include a predetermined heat output for the bottom heating element. Thus, the bottom heating element may be directed to its own heat output that is separate from the duty cycle or heat output for the top heating element.
At 870, the method 800 includes directing the heating elements according to one or more additional cycles (e.g., recharge cycles, standby cycles, or cooking cycles) following the second cooking cycle.
In some embodiments, 870 includes a recharge cycle following the second cooking cycle (e.g., in response to a determined expiration of the second cooking cycle, such as might be indicated by a user input or set time condition or duration for ending the second cooking cycle). For instance, 870 may include directing the top heating element or the bottom heating element to an inhibited state (e.g., inactive or, alternatively, reduced state, such as between 0% and 25%) according to a recharge cycle. The inhibited state of one or both of the heating elements may be maintained until a minimum recharge threshold is detected (e.g., at the oven sensor). Thus, 870 may further include detecting an oven temperature less than a minimum recharge threshold while the heating element(s) is/are in the inhibited state according to the recharge cycle. In optional embodiments, one or both heating elements may subsequently be activated as part of the recharge cycle. For instance, the recharge cycle may include a high heat output (e.g., continuously active or, alternatively, elevated output, such as between 80% and 100%) of the bottom heating element that is conditioned on or in response to detecting the oven temperature less than the minimum recharge threshold. In some such embodiments, the high heat output of the bottom heating element is directed to continue until a predetermined maximum recharge threshold is reached (e.g., as detected by the bottom temperature sensor). Optionally, the top heating element may be maintained (e.g., continued to be maintained) in the inhibited state according to the recharge cycle during the high heat output of the bottom heating element.
In certain embodiments, 870 includes a second standby cycle following the second cooking cycle or the recharge cycle (e.g., in response to a determined expiration of the recharge cycle, such as might be indicated by detecting a bottom temperature that is greater than or equal to the maximum recharge threshold). The second standby cycle may be similar to or, alternatively, unique from the first standby cycle of 830. In particular, the top heating element or the bottom heating element may be directed to a corresponding second predetermined standby temperature (e.g., target temperature, as described above) that is identical to or, alternatively, different from the predetermined standby temperature at 830.
The bottom heating element may be directed to generate heat (e.g., at a standby heat output) in order to meet or maintain the corresponding second standby temperature (e.g., using a PID scheme or thermostatic range of temperatures with a maximum temperature and a minimum temperature). In some such embodiments, the second standby temperature for the bottom heating element is a bottom temperature detected at the bottom temperature sensor. The second standby temperature may be less than or equal to the predetermined maximum recharge threshold. In turn, the second standby cycle may include directing the bottom heating element to an inhibited state (e.g., for a limited portion of the second standby cycle) before again activating the second heating element according to the second standby temperature.
The top heating element may be directed to generate heat (e.g., at a standby heat output) in order to meet or maintain the corresponding second standby temperature (e.g., using a PID scheme or thermostatic range of temperatures with a maximum temperature and a minimum temperature). In some such embodiments, the second standby temperature for the top heating element is an oven temperature detected at the oven temperature sensor. Optionally, the second standby temperature for the top heating element may be distinct from (e.g., lower than) the second standby temperature for the bottom heating element.
In additional or alternative embodiments, 870 includes a third cooking cycle following the second cooking cycle (e.g., in response to a determined expiration of the second cooking cycle, such as might be indicated by a user input or set time condition or duration for ending the second cooking cycle). The predetermined cooking temperature of 860 may be a second-cycle predetermined temperature while the third cooking cycle includes its own third-cycle predetermined temperature (e.g., different from or less than the second-cycle predetermined temperature) for the top heating element or the bottom heating element.
In certain embodiments, expiration of the second cooking cycle is conditioned on expiration of a set time period (i.e., dictating the permitted duration of the second cooking cycle from the start of the second cooking cycle to the end of the second cooking cycle). Thus, in response to determining expiration of the set time period for the second cooking cycle, the third cooking cycle may be initiated such that heat output of the top heating element or the bottom heating element is/are adjusted. The adjustments may require directing one or both of the heating elements to an inhibited state (e.g., for a limited portion of the third cooking cycle).
Additionally or alternatively, the top heating element may be directed according to a third heat output. In some embodiments, the heat output for the top heating element is lower in the third cooking cycle than in the second cooking cycle. For instance, the third cooking cycle may include a periodic heat output for the top heating element (i.e., a top heat output of the third cooking cycle that is less than the top heat output of the second cooking cycle). Additionally or alternatively, the third cooking cycle may include the third-cycle predetermined cooking temperature (e.g., target temperature for a PID control scheme or range of temperatures) that the top heating element maintains for the duration of the third cooking cycle.
Separate from or in addition to the heat output for the top heating element, the third cooking cycle may include a predetermined heat output for the bottom heating element. Thus, the bottom heating element may be directed to its own heat output that is separate from the duty cycle or heat output for the top heating element.
As would be understood, following 870, further additional cycles (e.g., recharge, standby, or cooking cycles) may be executed or the method 800 may be halted altogether (e.g., in response to expiration of a cooking operation time limit or corresponding user input).
Turning now especially to
At 920, the method 900 includes detecting an oven temperature greater than or equal to the predetermined cooking threshold. In particular, a temperature signal may be received from the oven temperature sensor. As would be understood, the temperature signal may generally correspond to or indicate a temperature at the oven temperature sensor. Comparison of this detected temperature to the predetermined cooking threshold may thus determine if the detected oven temperature is greater than or equal to the predetermined cooking threshold.
At 930, the method 900 includes directing the heating elements according to a second cooking cycle. Specifically, the second cooking cycle may be directed or prompted in response to 920. In some embodiments, the heat output for the top heating element is lower in the second cooking cycle than in the first cooking cycle. For instance, the second cooking cycle may include a periodic heat output for the top heating element (i.e., a top heat output of the second cooking cycle that is less than the top heat output of the first cooking cycle). Additionally or alternatively, the second cooking cycle may include a predetermined cooking temperature (e.g., target temperature for a PID control scheme or range of temperatures) that the top heating element maintains for the duration of the second cooking cycle.
Separate from or in addition to the heat output for the top heating element, the second cooking cycle may include a predetermined heat output for the bottom heating element. Thus, the bottom heating element may be directed to its own heat output that is separate from the duty cycle or heat output for the top heating element.
At 940, the method 900 includes directing, following the second cooking cycle, the top heating element to an inhibited state (e.g., inactive or, alternatively, reduced state, such as between 0% and 25%) according to a recharge cycle. Optionally, the end of the second cooking cycle may be indicated by a corresponding user input (e.g., received at the control panel or user interface) to halt the second cooking cycle. The received user input may, in turn, cause the top heating element to be directed to the inhibited state. In some embodiments, the bottom heating element is also directed to the inhibited state (e.g., as part of 940 and simultaneously with the top heating element).
At 950, the method 900 includes detecting an oven temperature less than a minimum recharge threshold. Thus, a temperature signal received from the oven temperature sensor may indicate a temperature that is less than the minimum recharge threshold while the top or bottom heating element(s) is/are in the inhibited state at 940.
At 960, the method 900 includes directing the bottom heating element according to the recharge cycle (e.g., in response to 950). Specifically, the bottom heating element may be activated at a high heat output (e.g., continuously active or, alternatively, elevated output, such as between 80% and 100%) of the recharge cycle. In some such embodiments, the high heat output of the bottom heating element is directed to continue until a predetermined maximum recharge threshold is reached (e.g., as detected by the bottom temperature sensor). Optionally, the top heating element may be maintained (e.g., continued to be maintained) in the inhibited state according to the recharge cycle during 960.
At 970, the method 900 includes directing the one or more heating elements according to a standby cycle (e.g., second standby cycle) following 960 and the recharge cycle, generally (e.g., in response to a determined expiration of the recharge cycle, such as might be indicated by detecting a bottom temperature that is greater than or equal to the maximum recharge threshold). For instance, the bottom heating element may be directed to generate heat (e.g., at a standby heat output) in order to meet or maintain the corresponding standby temperature (e.g., using a PID scheme or thermostatic range of temperatures with a maximum temperature and a minimum temperature). In some such embodiments, the standby temperature for the bottom heating element is a bottom temperature detected at the bottom temperature sensor. The standby temperature may be less than or equal to the predetermined maximum recharge threshold. In turn, the second standby cycle may include directing the bottom heating element to an inhibited state following 960 and before again activating the second heating element according to the predetermined standby temperature.
The top heating element may be directed to generate heat (e.g., at a standby heat output) in order to meet or maintain the corresponding standby temperature (e.g., using a PID scheme or thermostatic range of temperatures with a maximum temperature and a minimum temperature). In some such embodiments, the standby temperature for the top heating element is an oven temperature detected at the oven temperature sensor. Optionally, the standby temperature for the top heating element may be distinct from (e.g., lower than) the standby temperature for the bottom heating element at 970.
As would be understood, following 970, further additional cycles (e.g., recharge, standby, or cooking cycles) may be executed or the method 900 may be halted altogether (e.g., in response to expiration of a cooking operation time limit or corresponding user input).
Turning now especially to
At 1020, the method 1000 includes detecting an oven temperature greater than or equal to the predetermined cooking threshold. In particular, a temperature signal may be received from the oven temperature sensor. As would be understood, the temperature signal may generally correspond to or indicate a temperature at the oven temperature sensor. Comparison of this detected temperature to the predetermined cooking threshold may thus determine if the detected oven temperature is greater than or equal to the predetermined cooking threshold.
At 1030, the method 1000 includes directing the heating elements according to a second cooking cycle for a set time period. Specifically, the second cooking cycle may be directed or prompted in response to 1020. In some embodiments, the heat output for the top heating element is lower in the second cooking cycle than in the first cooking cycle. For instance, the second cooking cycle may include a periodic heat output for the top heating element (i.e., a top heat output of the second cooking cycle that is less than the top heat output of the first cooking cycle). Additionally or alternatively, the second cooking cycle may include a predetermined cooking temperature (e.g., target temperature for a PID control scheme or range of temperatures) that the top heating element maintains for the duration of the second cooking cycle (i.e., for the duration of the set time period, which begins with the start of the second cooking cycle at 1030).
Separate from or in addition to the heat output for the top heating element, the second cooking cycle may include a predetermined heat output for the bottom heating element. Thus, the bottom heating element may be directed to its own heat output that is separate from the duty cycle or heat output for the top heating element (e.g., for the duration of the set time period).
At 1040, the method 1000 includes determining expiration of the set time period. Generally, the set time period begins with the start of the second cooking cycle. The set time period of the second cooking cycle may be measured as a countdown or count up (e.g., by a timer initiated at the start of the second cooking cycle). Reaching the end of the countdown or the count up may, in turn, indicate expiration of the second cooking cycle.
At 1050, the method 1000 includes adjusting heat within the cooking chamber in response to 1040. Thus the heat output at the top heating element or the bottom heating element may be altered from the heat output provided with the second cooking cycle at 1030. For instance, a third cooking cycle may be initiated. The adjustments may require directing one or both of the heating elements to an inhibited state (e.g., for a limited portion of the third cooking cycle).
In some embodiments, the predetermined cooking temperature of 1030 may be a second-cycle predetermined temperature while the third cooking cycle includes its own third-cycle predetermined temperature (e.g., different from or less than the second-cycle predetermined temperature) for the top heating element or the bottom heating element. Additionally or alternatively, the top heating element may be directed according to a third heat output. In some embodiments, the heat output for the top heating element is lower in the third cooking cycle than in the second cooking cycle. For instance, the third cooking cycle may include a periodic heat output for the top heating element (i.e., a top heat output of the third cooking cycle that is less than the top heat output of the second cooking cycle). Additionally or alternatively, the third cooking cycle may include the third-cycle predetermined cooking temperature (e.g., target temperature for a PID control scheme or range of temperatures) that the top heating element maintains for the duration of the third cooking cycle.
Separate from or in addition to the heat output for the top heating element, the third cooking cycle may include a predetermined heat output for the bottom heating element. Thus, the bottom heating element may be directed to its own heat output that is separate from the duty cycle or heat output for the top heating element.
As would be understood, following 1040, further additional cycles (e.g., recharge, standby, or cooking cycles) may be executed or the method 1000 may be halted altogether (e.g., in response to expiration of a cooking operation time limit or corresponding user input).
This written description uses examples to disclose the invention, including the best mode, and also to enable any person skilled in the art to practice the invention, including making and using any devices or systems and performing any incorporated methods. The patentable scope of the invention is defined by the claims, and may include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if they include structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements with insubstantial differences from the literal languages of the claims.
