Patent Application
20170023132
The present application claims priority to Korean Patent Application No. 10-2015-0104567, filed on Jul. 23, 2015, the entire contents of which is incorporated herein for all purposes by this reference.
1. Technical Field
The present invention relates to a shift lever apparatus capable of preventing a malfunction based on an operation of a shift lever, in a passive transmission vehicle.
2. Description of the Related Art
Generally, a manual transmission is installed between a clutch and a propeller shaft to appropriately shift a driving force of an engine based on a driving state of a vehicle. Further, a transmission lever is installed within the vehicle provided with a passive transmission to enable a driver to perform a shifting operation. The manual transmission has a structure in which the shift lever installed in the interior of the vehicle and the shifting operation mechanism installed at the transmission are connected to each other by cables. As the driver operates the transmission lever, the manual transmission operates a shift cable and a select cable, respectively, to operate the shifting operation mechanism, thereby performing the shifting operation.
However, as illustrated in
In particular, when unreasonable shifting from a low speed stage to a high speed stage occurs due to the excessive operation of the shift lever, a shifting malfunction may occur that inhibits the transmission from performing the shifting internally. For example, when the shifting suddenly occurs, a rapid increase in an engine revolutions per minute (RPM) and a rapid decrease in a vehicle speed may occur and safety of passengers may be compromised.
The contents described as the related art have been provided merely for enhancement of the understanding for the background of the invention and therefore it may contain information that does not form the prior art that is already known in this country to a person of ordinary skill in the art.
The present invention provides a shift lever apparatus and control method thereof that sequentially performs shifting for a driver to stably operate a shift stage and prevents excessive shifting from a low speed stage to a high speed stage in a manual transmission.
An exemplary embodiment provides a shift lever apparatus, that may include an operating part having fastening pins extracted (e.g., drawn out) therefrom and inserted (e.g., drawn in) thereinto, based on a signal input, and a select lever part coupled to a shift lever that rotates based on a shift pattern along with the shift lever. Further, the select lever part may correspond to a position of a shift stage that depends on the shift pattern and may include a plurality of insertion apertures. The fastening pins may be inserted into the insertion apertures and may selectively permit or limit the rotation of the shift lever based on whether the fastening pins are inserted into the plurality of insertion apertures.
In some exemplary embodiments, the insertion aperture of the select lever part may include a first aperture that corresponds to a select (e.g., predetermined) position of a reverse stage (R stage), a second aperture that corresponds to a select (e.g., predetermined) position of a low speed stage among advance stages. Further a third aperture may correspond to a select (e.g., predetermined) position of an intermediate speed stage, and a fourth aperture may correspond to a select (e.g., predetermined) position of a high speed stage. In other exemplary embodiments, the third aperture may extend to connect between (e.g., contact or be coupled to) the select position of the low speed stage and the select position of the intermediate speed stage and the fourth aperture may extend to connect between (e.g., contact or be coupled to) the select position of the intermediate speed stage and the select position of the high speed stage. [Please provide exemplary ranges for the different speed stages.]
The second aperture and the fourth aperture may be formed on a concentric circle that may have the same radius based on a rotating center of the select lever part. The third aperture may be formed on a concentric circle that may have a different radius from a position at which the second aperture and the fourth aperture are formed. The first aperture may be formed on either the concentric circle on which the second aperture and the fourth aperture are positioned. Alternatively, the first aperture may be formed on the concentric circle at a position of the third aperture.
In other exemplary embodiments, the first aperture may be formed to correspond to a select position of an R stage and the second aperture may be formed to correspond to select positions of a first stage and a second stage. Further, the third aperture may extend to connect between the select positions of the first stage and the second stage and select positions of a third stage and a fourth stage. The fourth aperture may extend to connect between the select positions of the third stage and the fourth stage and select positions of a fifth stage and a sixth stage. In some exemplary embodiments, the fastening pin of the operating part may include a first pin that may be selectively inserted into the second aperture and the fourth aperture. Additionally, a second pin may be selectively inserted into the third aperture and either the first pin or the second pin may be selectively inserted into the first aperture.
In another aspect, the shift lever apparatus may further include a controller that may be configured to receive driving information of a vehicle and execute the extraction (e.g., drawing out) operation of the fastening pin. The controller may be configured to adjust the extraction operation of the fastening pin based on the driving conditions when the shift lever rotates to be shifted to alternative shift stages and may selectively permit or limit the rotation of the shift lever. The controller may further be configured to extract (e.g., draw out or remove) the first pin or the second pin of the operating part inserted into the first aperture when the shift lever engages the R stage when positioned at the select position of the R stage.
The controller may be configured extract the first pin of the fastening pin inserted into the second aperture when the shift lever engages the first stage in the state when positioned at the select positions of the first stage and the second stage which are the low speed stage. The controller may further be configured to extract the second pin of the fastening pin inserted into the third aperture when the shift lever is shifted to the second stage. The controller may be further configured to monitor (e.g., check) whether the driving stage of the vehicle is within the pre-stored second stage driving range. Additionally, the first pin of the fastening separated from the second aperture may be inserted when the driving state of the vehicle exceeds the second stage driving range.
Additionally, the controller may be configured to monitor (e.g., check) whether the driving state of the vehicle preforms within the pre-stored third stage driving range when the shift lever engages the third stage. The third stage and fourth stage positions are the intermediate speed stages and may extract the second pin of the fastening pin inserted into the third aperture when the driving state of the vehicle does not reach the third stage driving state. The driving state of the vehicle may be within the third stage driving range or may exceed the third stage driving range and the controller may be configured to extract the first pin of the fastening pin inserted into the fourth aperture or maintain the inserted state of the first pin.
When the shift lever is shifted to the fourth stage and the controller may be configured to insert the first pin of the fastening pin into the fourth aperture and insert the second pin into the third aperture. The controller may further be configured to monitor (e.g., check) whether the driving state of the vehicle remains within the pre-stored fourth stage driving range and insert the second pin of the fastening pin separated from the third aperture when the driving state of the vehicle exceeds the fourth stage driving range.
The controller may be configured to adjust (e.g., control) the first pin and the second pin of the fastening pin inserted when the shift lever may be disposed at the select position in the fifth stage which is the high speed stage. The high speed stage may include the fifth stage and the sixth stage and the insertion aperture of the select lever part may further include a fifth aperture formed on the concentric circle having the same radius as the third aperture at the select position of the high speed stage. The controller may be configured to extract the second pin of the fastening pin inserted into the fifth aperture when the shift lever may engage the sixth stage and may be disposed at the select positions of the fifth stage and the sixth stage which are the high speed stage.
The above and other features of the present disclosure will be apparent from the following detailed description taken in conjunction with the accompanying drawings.
Advantages and features of the invention and methods of accomplishing the same may be understood more readily by reference to the following detailed descriptions of exemplary embodiments and the accompanying drawings. While the invention will be described in conjunction with exemplary embodiments, it will be understood that present description is not intended to limit the invention to those exemplary embodiments. On the contrary, the invention is intended to cover not only the exemplary embodiments, but also various alternatives, modifications, equivalents and other embodiments, which may be included within the spirit and scope of the invention as defined by the appended claims.
It is understood that the term “vehicle” or “vehicular” or other similar term as used herein is inclusive of motor vehicles in general such as passenger automobiles including sports utility vehicles (SUV), buses, trucks, various commercial vehicles, watercraft including a variety of boats and ships, aircraft, and the like, and includes hybrid vehicles, electric vehicles, plug-in hybrid electric vehicles, hydrogen-powered vehicles and other alternative fuel vehicles (e.g. fuels derived from resources other than petroleum). As referred to herein, a hybrid vehicle is a vehicle that has two or more sources of power, for example both gasoline-powered and electric-powered vehicles.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises” and/or “comprising,” when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed items. For example, in order to make the description of the present invention clear, unrelated parts are not shown and, the thicknesses of layers and regions are exaggerated for clarity. Further, when it is stated that a layer is “on” another layer or substrate, the layer may be directly on another layer or substrate or a third layer may be disposed therebetween.
Unless specifically stated or obvious from context, as used herein, the term “about” is understood as within a range of normal tolerance in the art, for example within 2 standard deviations of the mean. “About” can be understood as within 10%, 9%, 8%, 7%, 6%, 5%, 4%, 3%, 2%, 1%, 0.5%, 0.1%, 0.05%, or 0.01% of the stated value. Unless otherwise clear from the context, all numerical values provided herein are modified by the term “about.”
Furthermore, control logic of the present invention may be embodied as non-transitory computer readable media on a computer readable medium containing executable program instructions executed by a processor, controller/control unit or the like. Examples of the computer readable mediums include, but are not limited to, ROM, RAM, compact disc (CD)-ROMs, magnetic tapes, floppy disks, flash drives, smart cards and optical data storage devices. The computer readable recording medium can also be distributed in network coupled computer systems so that the computer readable media is stored and executed in a distributed fashion, e.g., by a telematics server or a Controller Area Network (CAN).
As illustrated in
In this configuration, the operating part 100 may be fixedly installed in a base bracket B and may be configured of solenoids that fastening pins 120 are extracted or inserted based on whether an electric signal may be applied to the operating part 100 and may be configured to be adjusted by a controller 300 as described in detail below. In particular, the select lever part 200 may be coupled with the shift lever L and may rotate based on the shift pattern and rotates along with the shift lever L. The select lever part 200 may be rotatably installed within a base bracket B and may be coupled to a cable of the transmission to transfer a shifting operation based on the rotation of the shift lever L to the transmission. The select lever part 200 include the plurality of insertion apertures 220 into which the fastening pins 120 may be inserted to selectively limit the rotation based on whether the fastening pins 120 are inserted into the plurality of insertion apertures 220. As a result, the operation of the shift lever L may be permitted in the state when the fastening pins 120 are not inserted into the insertion apertures 220. The fastening pins 120 may be inserted into the insertion apertures 220, and the rotation of the select lever part 200 may be limited to limit the operation of the shift lever L.
As illustrated in
In other words, the first aperture 222 may be formed to correspond to a select position of an R stage. The second aperture 223 may be formed to correspond to select positions of a first stage 10 and a second stage 20 that form the low speed stage. The third aperture 225 may be formed to correspond to select positions of a third stage 30 and a fourth stage 40 that form the intermediate speed stage. The fourth aperture 227 may be formed to correspond to select positions of a fifth stage 50 and a sixth stage 60 that form the high speed stage.
Moreover, the select position of the low speed stage and the select position of the intermediate speed stage or the select position of the intermediate speed stage and the select position of the high speed stage may be divided and the shifting may be performed more smoothly. For this purpose, as illustrated in
In other words, within the insertion aperture 220 of the select lever part 200 as described above, the first aperture 221 may be formed to correspond to the select position of the R stage, the second aperture 223 may be formed to correspond to the select positions of the first stage 10 and the second stage 20, the third aperture 225 may extend between and be coupled to the select positions of the first stage 10 and the second stage 20 and the select positions of the third stage 30 and the fourth stage 40, and the fourth aperture 227 may extend between and be coupled to the select positions of the third stage 30 and the fourth stage 40 and the select positions of the fifth stage 50 and the sixth stage 60. By this configuration, the shift lever may be moved from a position of a specific shift stage to another shift stage, the sequential shifting may depend on the shift stage and may be performed by extracting or inserting the fastening pin 120 by an instruction of the controller 300 to be described in detail below. The extraction or insertion control of the fastening pin 120 may be based on the rotation of the select lever part 200 during the operation of the shift lever L.
Furthermore, as illustrated in
Additionally, the second aperture 223, the fourth aperture 227, and the third aperture 225 may be formed on the concentric circles having different radii, to equally move the positions of the second aperture 223, the third aperture 225, and the fourth aperture 227 as the select lever part 200 rotates by rotating operation of the shift lever L. In particular, the third aperture 225 may extend to connect between the select position of the low speed stage and the select position of the intermediate speed stage and the fourth aperture 227 may extend to connect between the select position of the intermediate speed stage and the select position of the high speed stage. The third aperture 225 and the fourth aperture 227 may be formed on the concentric circle having different radii. The third aperture 225 and the fourth aperture 227 may be positioned to correspond to each other based on the select position of the intermediate speed stage. In this configuration, the shift lever L may move smoothly from the select position of the intermediate speed stage to the select position of the low speed stage or the select position of the high speed stage.
The first aperture 221 may be formed on either the concentric circle a on which the second aperture 223 and the fourth aperture 227 are formed or the concentric circle b where the third aperture 225 is formed, based on the shift pattern. In other words, when the shift lever L operates in an upward vertical direction based on the shift pattern to be shifted to the R stage, the first aperture 221 is formed on the concentric circle a on which the second aperture 223 and the fourth aperture 227 are formed. When the shift lever L operates in a downward vertical direction based on the shift pattern to be shifted to the R stage, the first aperture 221 is formed on the concentric circle b on which the third aperture 225 may be formed.
Further, as illustrated in
Furthermore, the insertion aperture 220 disposed within the select lever part 200 may be formed to contact a shift stage based on the shift pattern. Additionally, the controller 300 may be configured to execute insertion or extraction of the fastening pin 120 of the operating part 100 to contact the movement of the shift lever, thereby performing the sequential shifting during the operation of the shift lever L. In particular, as illustrated in
In other words, the exemplary embodiment may further include the controller 300 that may be configured to receive driving information of a vehicle and execute the extraction operation of the fastening pin 120. The controller 300 may be configured to execute the extraction operation of the fastening pin 120 based on driving conditions when the shift lever L rotates to be shifted to alternate (e.g., other) shift stages, thereby selectively permitting or limiting the rotation of the shift lever L. The driving information of the vehicle input to the controller 300 may be an engine revolutions per minute (e.g., RPM) of a vehicle and may be configured to execute the shift lever L receiving additional information related to a driving speed and an engine output.
For example, the controller 300 may be configured to permit or limited the operating part 100 to rotate the select lever part 200. The controller 300 may be configured to extract the first pin 122 or the second pin 124 of the operating part 100 inserted into the first aperture 221 when the shift lever L is disposed in the R stage. In other words, when the shift lever L is positioned in the R stage, the vehicle may be driven reversely and the shifting to alternate shift stages (e.g., which are an advance stage) may be limited. As illustrated in
As illustrated in
As illustrated in
Therefore, the controller 300 may be configured to extract the second pin 124 of the fastening pin 120 inserted into the third aperture 225 when the driving state of the vehicle falls within the second stage driving stage. Accordingly, the state in which the first pin 122 is inserted into the second aperture 223 and the second pin 124 is inserted into the third aperture 225 may be maintained. For example, when the driving state of the vehicle exceeds the second stage driving range, as illustrated in
However, the third aperture extends to be formed in a long aperture and may be coupled between the select positions of the first stage 10 and the second stage 20 which are the low speed stage and the select positions of the third stage 30 and the fourth stage 40. The shift lever L may be displaced (e.g., move, translate) from the select positions of the first stage 10 and the second stage 20 to the select positions of the third stage 30 and the fourth stage 40. Additionally, the shift lever L may be disposed (e.g., move, positioned etc.) to the select positions of the third stage 30 and the fourth stage 40 while being coupled to (e.g., locked, maintaining a fixed position) to the second pin 124 of the fastening pin 120, thereby preventing the excessive shifting to the high speed stages, the fifth stage 50 and the sixth stage 60.
Moreover, the controller 300 may be configured to monitor whether the driving state of the vehicle falls within the pre-stored third stage driving range when the shift lever L engages the third stage 30 when the select positions of the third stage 30 and the fourth stage 40 are the intermediate speed stage. As illustrated in
As the shifting from the select positions of the first stage 10 and the second stage 20 which are a previous shift stage to the select positions of the third stage 30 and the fourth stage 40 may be permitted, the second pin 124 of the fastening pin 120 may be inserted into the third aperture 225 and may be maintained. However, when the driving state of the vehicle does satisfy the pre-stored third stage driving range, the second pin 124 of the fastening pin 120 inserted within the third aperture 225 may be maintained to move the shift lever L to the previous shift stage.
The driving state of the vehicle may be disposed within the third stage driving range or may exceed the third stage driving range and the controller 300 may be configured to extract the first pin 122 of the fastening pin 120 inserted into the fourth aperture 227 or maintain the inserted state of the first pin 122. In other words, the first pin 122 may be inserted into the fourth aperture 227 when the second pin 124 of the fastening pin 120 inserted into the third aperture 225. The third aperture 225 and the fourth aperture 227 extend in different (e.g., alternate) directions based on the select positions of the intermediate speed stage and therefore at the select position of the intermediate speed stage, the second pin 124 may be inserted into the third aperture 225 and the first pin 122 may be inserted into the fourth aperture 227 to limit the rotation of the select lever part 200. Additionally, the movement of the shift lever L to the select position of the low speed stage or the select position of the high speed stage speed stage may be limited. However, the movement to the select position of the intermediate speed stage may remain uninhibited.
Particularly, when the driving state of the vehicle is within the third stage driving range, the first pin 122 of the fastening pin 12 may be inserted into the fourth aperture 227 so that the vehicle may be driven at the shift stage meeting the current vehicle driving condition. Accordingly, the movement of the shift lever L to the select position of the low speed stage or the select position of the high speed stage may be limited. Further, when the driving state of the vehicle exceeds the third stage driving range, the shifting to next shift stage, specifically the fourth stage 40 may be performed by moving the shift position of the shift lever L without a selection. However, the movement of the shift lever L to the select position of the low speed stage or the select position of the high speed stage may be limited, and thereby preventing the excessive shifting.
As shown in another exemplary embodiment, the shift lever L may be shifted to the fourth stage and in advance the second pin 124 may be inserted into the third aperture 225. Accordingly, the shifting to the high speed stages such as shift stages of the fifth stage 50 and the sixth stage may be limited. However, even though the vehicle may be driven while the shift lever engages the fourth stage, the inserted state of the first pin 122 may be maintained. The shifting to the first stage 10 or the second stage 20 may be performed based on the driving situation, thereby actively responding to the driving condition.
When the shift lever L is shifted (e.g., positioned within) to the fourth stage 40, as illustrated in
As illustrated in
However, the fourth aperture 227 may extend to be formed within a long aperture to be coupled (e.g., connect) between the select positions of the intermediate speed stage such as the third stage 30 and the fourth stage 40 and the high speed stage such as the select position of the fifth stage 50. The shift lever L may be operated to move from the select positions of the third stage 30 and the fourth stage 40 to the select position of the fifth stage 50. Accordingly, the first pin 122 of the fastening pin 120 may move to the select position of the fifth stage 50, and may thereby prevent the shift lever L from moving to the select position of the low speed stage due to the malfunction.
In an exemplary embodiment, the controller 300 may be configured to insert the first pin 122 and the second pin 124 of the fastening pin 82 when the shift lever L engages the fifth stage 50 and when the shift lever L engages the high speed stage at the select position of the fifth stage 50. For example, when the shift lever L engages to the fifth stage 50, the shift lever L may be positioned at the select position of the high speed stage in advance, and may thereby prevent an excessive shift operation. Therefore, the controller 300 may be configured to terminate the power supply applied to the operating part 100 to draw in the first pin 122 and the second pin 124 of the fastening pin 120, and may thereby prevent unnecessary power consumption.
The high speed stage may include the fifth stage 50 and the sixth stage 60. The insertion aperture 220 of the select lever part 200 may further include a fifth aperture formed on the concentric circle b having the about the same radius as the third aperture 225 at the select position of the high speed stage. Therefore, the controller 300 may be configured to extract the second pin 124 of the fastening pin 120 inserted into the fifth aperture as illustrated in
As described above, the present invention sequentially performs the shifting in consideration of the driving state of the vehicle at the time of the operation of the shift lever L. Accordingly, the driver may operate the shift stage more stably without improperly using the shift stage. In particular, an exemplary embodiment, prevents excessive shifting from the low speed stage to the high speed stage from starting off due to the shifting malfunction and prevents engine components from being damaged due to the overload of the transmission and the engine.
According to the shift lever apparatus having the above-mentioned structure, may prevention of starting off due to the shifting malfunction and may prevent engine components from being damaged due to the overload of the transmission and the engine. For example the shift lever apparatus may prevent excessive shifting from the low speed stage to the high speed stage within the manual transmission. Further, the driver may be able to stably operate the shift stage without erroneously operating the shift stage by sequentially performing the shifting operation.
Specific structural and functional descriptions will be provided only in order to describe various exemplary embodiments of the present invention disclosed in the present specification or disclosure. Therefore, exemplary embodiments of the present invention may be implemented in various forms, and the present invention is not to be interpreted as being limited to exemplary embodiments described in the present specification or disclosure.
Although the present invention has been shown and described with respect to what is presently considered to be exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. On the contrary, it is intended to cover various modifications and equivalent arrangement without departing from the spirit and scope of as disclose din the accompanying claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 10-2015-0104567 | Jul 2015 | KR | national |
