Patent Grant
10345797
The present invention relates generally to power tools, such as power drills or impact drivers.
In one embodiment, the invention provides a method for operating power tools that includes receiving a command to start a recording mode at a first electronic processor of a first power tool, and receiving at the first electronic processor, a measured parameter from a sensor of the first power tool while a first motor of the first power tool is operating. The method also includes generating a recorded motor parameter by recording the measured parameter, on a first memory of the first power tool, when the first power tool operates in the recording mode, and transmitting, with a first transceiver of the first power tool, the recorded motor parameter. The method further includes receiving the recorded motor parameter at an external device, transmitting the recorded motor parameter to a second power tool via the external device, and receiving the recorded motor parameter via a second transceiver of the second power tool.
In another embodiment, the invention provides a power tool system that includes a first power tool, an external device, and a second power tool. The first power tool includes a first motor, a sensor coupled to the first motor and configured to measure a parameter of the first motor. The first power tool also includes a first electronic processor coupled to the first motor and the sensor, and a first transceiver coupled to the first electronic processor. The first electronic processor configured to receive a command to start a recording mode, and generate a recorded motor parameter by recording the measured parameter while the first motor is operating and the first power tool is in the recording mode. The first transceiver is configured to transmit the recorded motor parameter to the external device. The external device is in communication with the first power tool, and includes a device transceiver. The device transceiver is configured to receive the recorded motor parameter from the first power tool, and transmit the recorded motor parameter to a second power tool. The second power tool is in communication with the external device, and includes a second transceiver and a second electronic processor. The second transceiver is configured to receive the recorded motor parameter from the external device. The second electronic processor is configured to store the recorded motor parameter.
In one embodiment, the invention provides a power tool including a motor, a sensor coupled to the motor, a transceiver, and an electronic processor. The sensor is configured to measure a parameter of the motor. The electronic processor is coupled to the motor, the sensor, and the transceiver, and is configured to receive, from an external device via the transceiver, a command to start a recording mode. The electronic processor is also configured to generate a recorded motor parameter by recording the measured parameter while the motor is operating and the power tool is in the recording mode, and transmit, via the transceiver, the recorded motor parameter to the external device.
In some instances, the power tool further includes a mode selector switch configured to receive a user mode selection, the user mode selection indicating an operating mode selected from a plurality of operating modes. In some instances, the processor is configured to receive the motor parameter from the external device as part of a tool profile; assign the tool profile to one mode of the plurality of operating modes rendering the one mode a playback mode; and operate the motor in accordance with the motor parameter when the mode selector switch indicates selection of the playback mode and upon receipt of an activation signal from a trigger of the power tool. In some instances, the motor parameter has a duration and, while the power tool is in the playback mode and the trigger is in the depressed state, the controller is configured to stop operating the motor based on the recorded motor parameter when the duration ends. In some instances, the motor parameter includes at least one selected from the group consisting of a duty cycle indicating trigger pull, a motor speed, a motor torque, a motor power, and a number of impact activations. In some instances, the processor is configured to begin to record the motor parameter for a predetermined time period upon at least one selected from the group consisting of entering the recording mode, receiving an activation signal from a trigger of the power tool, and receiving a start request from the external device. In some instances, the processor is configured to stop recording the motor parameter upon at least one selected from the group consisting of detecting a release of the trigger and receiving a stop request from the external device.
In another embodiment, the invention provides a method of operating a power tool including a motor, a communication controller, and a processor. The method includes forming a communication link between the communication controller of the power tool and an external device. The method also includes entering, by the processor, a recording mode based on a signal received from the external device over the communication link. The method further includes recording, by the processor, a motor parameter while the power tool is in the recording mode and the motor is operating to generate a recorded motor parameter. The method further includes transmitting, by the communication controller, the motor parameter recorded during operation of the power tool in the recording mode to the external device.
In some instances, the method includes receiving, by a mode selector switch of the power tool, a user mode selection. The user mode selection indicates an operating mode selected from a plurality of operating modes. In some instances, the method includes receiving, by the processor, the motor parameter from the external device as part of a tool profile; assigning the tool profile to one mode of the plurality of operating modes rendering the one mode a playback mode; and operating the motor in accordance with the motor parameter when the mode selector switch indicates selection of the playback mode and upon receipt of an activation signal from a trigger of the power tool. In some instances, the motor parameter has a duration and, while the power tool is in the playback mode and the trigger is in the depressed state, the controller is configured to stop operating the motor based on the recorded motor parameter when the duration ends. In some instances, the motor parameter includes at least one selected from the group consisting of a duty cycle indicating trigger pull, a motor speed, a motor torque, a motor power, and a number of impact activations. In some instances, the processor is configured to begin to record the motor parameter for a predetermined time period upon at least one selected from the group consisting of entering the recording mode, receiving an activation signal from a trigger of the power tool, and receiving a start request from the external device. In some instances, the processor is configured to stop recording the motor parameter upon at least one selected from the group consisting of detecting a release of the trigger and receiving a stop request from the external device. In some instances, the motor parameter covers a first time period in which the motor is operating in response to depression of the trigger; a second time period in which the motor is inactive in response to release of the trigger; and a third time period in which the motor is operating in response to another depression of the trigger.
Other aspects of the invention will become apparent by consideration of the detailed description and accompanying drawings.
Before any embodiments of the invention are explained in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings. The invention is capable of other embodiments and of being practiced or of being carried out in various ways.
A printed circuit board (PCB) 165 and a motor 170 are located within the cavity 162 of the body portion 110. The motor 170 is coupled to the interior surface 160 via a motor mount. The PCB 165 is electrically coupled to the motor 170 and includes electrical and electronic components that are operable to control the tool 100. In the illustrated embodiment, the PCB 165 includes an electronic processor 180 (
The motor 170 is a multi-speed, brushless direct-current (BLDC) motor. As is commonly known, BLDC motors include a stator, a permanent magnet rotor, and an electronic commutator. The electronic commutator typically includes, among other things, a programmable device (e.g., a microcontroller, a digital signal processor, or a similar controller) having a processor and a memory. The programmable device of the BLDC motor uses software stored in the memory to control the electric commutator. The electric commutator then provides the appropriate electrical energy to the stator in order to rotate the permanent magnet rotor at a desired speed. In some embodiments, the electronic processor 180 acts as the programmable device of the motor 170. In other embodiments, the programmable device is separate from the electronic processor 180. In other embodiments of the motor 170, the motor 170 can be a variety of other types of multi-speed or variable-speed motors, including but not limited to, a brush direct-current motor, a stepper motor, a synchronous motor, an induction motor, a vector-driven motor, a switched reluctance motor, and other DC or AC motors. The motor 170 is used to drive a working element 185 (
In the illustrated embodiment, the handle 115 extends downwardly from the bottom surface 125 of the body portion 110 such that the tool 100 has a pistol-style grip. A battery receptacle 190 is located at a distal end of the handle 115, and a trigger mechanism 195 is positioned on the handle 115 proximate the body portion 110.
The battery receptacle 190 receives a battery 200 (
Referring to
In the illustrated embodiment, the electrical switch 215 is a push-button electrical switch positioned within the handle 115. The electrical switch 215 includes a push button 255 and electrical contacts. When the push button 255 is activated, such as by the push rod 240, the electrical contacts are in a CLOSED position. When the electrical contacts are in the CLOSED position, electrical current is supplied from the battery to the motor 170, via the electronic processor 180. When the push button 255 is not activated, the electrical contacts are in the OPEN position. When the electrical contacts are in the OPEN position, electrical current is not supplied from the battery to the motor 170. Although the electrical switch 215 is illustrated as a push-button electrical switch with contacts, other types of electrical switches may be used with the tool 100. For example, in some embodiments, the electrical switch 215 may be activated by, for example, a position sensor (e.g., a Hall-Effect sensor) that relays information about the relative position of the trigger 205. The electrical switch 215 outputs a signal indicative of the position of the trigger 205.
The direction switch 210 is located above the trigger 205 and below the body portion 110 of the tool 100. The direction switch 210 is slidingly coupled to the handle 115. As shown in
The switching network 305 enables the electronic processor 180 to control the operation of the motor 170. Generally, when the trigger 205 is depressed as indicated by an output of the electrical switch 215, electrical current is supplied from the battery pack interface 320 to the motor 170, via the switching network 305. When the trigger 205 is not depressed, electrical current is not supplied from the battery pack interface 320 to the motor 170.
In response to the electronic processor 180 receiving the activation signal from the electrical switch 215, the electronic processor 180 activates the switching network 305 to provide power to the motor 170. The switching network 305 controls the amount of current available to the motor 170 and thereby control the speed and torque output of the motor 170. The switching network 305 may include numerous FETs, bipolar transistors, or other types of electrical switches. For instance, the switching network 305 may include a six-FET bridge that receives pulse-width modulated (PWM) signals from the electronic processor 180 to drive the motor 170.
The mode pad 270 is a user interface on the housing 105 power tool 100 such that the mode pad 270 is accessible to the user. The mode pad 270 includes a mode selection switch 275 and mode indicator LEDs 337a-e. In the illustrated embodiment, the power tool 100 has five selectable modes (one, two, three, four, and adaptive), each associated with a different one of the mode indicator LEDs 337a-e. The mode selection switch 275 is a pushbutton that cycles through the five selectable modes upon each press (e.g., mode 1, 2, 3, 4, 5, 1, 2, and so on). When a specific mode is selected, the associated mode indicator LED 337 lights up thereby indicating to the user the selected mode. For example, if the user selects mode one (“1”) using the mode selection switch 275, the LED 337a associated with mode one lights up. In other embodiments, the power tool 100 has more or fewer modes, and the mode selection switch 275 may be a different type of mode selection mechanism such as, for example, a slide switch and/or a rotary switch.
The sensors 310 are coupled to the electronic processor 180 and communicate to the electronic processor 180 various signals indicative of different parameters of the power tool 100 and/or the motor 170. The sensors 310 include Hall-Effect sensors 310a, current sensors 310b, among other sensors, such as, for example, one or more voltage sensors, one or more temperature sensors, one or more torque sensors. Each Hall-Effect sensor 310a outputs motor feedback information to the electronic processor 180, such as an indication (e.g., a pulse) when a magnet of the motor's rotor rotates across the face of that particular Hall-Effect sensor 310a. Based on the motor feedback information from the Hall-Effect sensors 310a, the electronic processor 180 can determine the position, velocity, and acceleration of the rotor. In response to the motor feedback information and the signal from the electrical switch 215 of the trigger 205, the electronic processor 180 transmits control signals to control the switching network 305 to drive the motor 170. For instance, by selectively enabling and disabling the FETs of the switching network 305, power received via the battery pack interface 320 is selectively applied to stator coils of the motor 170 to cause rotation of its rotor. The motor feedback information is used by the electronic processor 180 to ensure proper timing of control signal to the switching network 305 and, in some instances, to provide closed-loop feedback to control the speed of the motor 170 to be at a desired level.
The indicators 315 are also coupled to the electronic processor 180 and receive control signals from the electronic processor 180 to turn on and off or otherwise convey information based on different states of the power tool 100. The indicators 315 include, for example, one or more light-emitting diodes (LEDs), or a display screen. The indicators 315 can be configured to display conditions of, or information associated with, the power tool 100. For example, the indicators 315 are configured to indicate measured electrical characteristics of the power tool 100, the status of the power tool 100, the mode of the power tool 100 (discussed in more detail below), etc. the indicators 315 may also include elements to convey information to a user through audible or tactile outputs.
As described above, the electronic processor 180 is electrically and/or communicatively connected to a variety of modules or components of the tool 100. In some embodiments, the electronic processor 180 includes a plurality of electrical and electronic components that provide power, operational control, and protection to the components and modules within the electronic processor 180 and/or power tool 100. For example, the electronic processor 180 includes, among other things, a processing unit 340 (e.g., a microprocessor, a microcontroller, or another suitable programmable device), a memory 345, input units 350, and output units 355. The processing unit 340 includes, among other things, a control unit 360, an arithmetic logic unit (“ALU”) 365, and a plurality of registers 370 (shown as a group of registers in
The memory 345 includes, for example, a program storage and a data storage. The program storage and the data storage can include combinations of different types of memory, such as read-only memory (“ROM”), random access memory (“RAM”) (e.g., dynamic RAM [“DRAM”], synchronous DRAM [“SDRAM”], etc.), electrically erasable programmable read-only memory (“EEPROM”), flash memory, a hard disk, an SD card, or other suitable magnetic, optical, physical, or electronic memory devices. The electronic processor 180 is connected to the memory 345 and executes software instructions that are capable of being stored in a RAM of the memory 345 (e.g., during execution), a ROM of the memory 345 (e.g., on a generally permanent basis), or another non-transitory computer readable medium such as another memory or a disc. Software included in the implementation of the tool 100 can be stored in the memory 345 of the electronic processor 180. The software includes, for example, firmware, one or more applications, program data, filters, rules, one or more program modules, and other executable instructions. The electronic processor 180 is configured to retrieve from memory and execute, among other things, instructions related to the control processes and method described herein. The electronic processor 180 is also configured to store power tool information on the memory 345 including motor operational parameters, general tool operational data, information identifying the type of tool, a unique identifier for the particular tool, and other information relevant to operating or maintaining the power tool 100. The tool usage information, such as current levels, motor speed, motor acceleration, motor direction, number of impacts, may be captured or inferred from data output by the sensors 310. Such power tool information may then be accessed by a user with the external device 300. In other embodiments, the electronic processor 180 includes additional, fewer, or different components.
The communication controller 330 is coupled to the electronic processor 180. In the illustrated embodiment, the communication controller 330 is a wireless communication controller 330. In other embodiments, the communication controller 330 may be a wired communication controller 330 including at least a port for receiving a communication connector of the external device 300. In the illustrated embodiment, the communication controller 330 is located near the foot of the tool 100 to save space and ensure that the magnetic activity of the motor 170 does not affect the wireless communication between the power tool 100 and the external device 300. As a particular example, in some embodiments, the wireless communication controller 330 is positioned under the mode pad 270.
As shown in
In the illustrated embodiment, the wireless communication controller 330 is a Bluetooth® controller. The Bluetooth® controller communicates with the external device 300 employing the Bluetooth® protocol. Therefore, in the illustrated embodiment, the external device 300 and the power tool 100 are within a communication range (i.e., in proximity) of each other while they exchange data. In other embodiments, the wireless communication controller 330 communicates using other protocols (e.g., Wi-Fi, cellular protocols, a proprietary protocol, etc.) over different types of wireless networks. For example, the wireless communication controller 330 may be configured to communicate via Wi-Fi through a wide area network such as the Internet or a local area network, or to communicate through a piconet (e.g., using infrared or NFC communications). The communications via the communication controller 330 may be encrypted to protect the data exchanged between a) the power tool 100 and b) the external device 300 and/or a network from third parties.
The wireless communication controller 330 is configured to receive data from the power tool processor 180 and relay information to the external device 300 via the transceiver and antenna 375. In a similar manner, the wireless communication controller 330 is configured to receive information (e.g., configuration and programming information) from the external device 300 via the transceiver and antenna 375 and relay the information to the electronic processor 180.
The RTC 390 increments and keeps time independently of the other power tool components. The RTC 390 receives power from the battery pack 200 when the battery pack 200 is connected to the power tool 100 and receives power from the back-up power source 335 when the battery pack 200 is not connected to the power tool 100. Having the RTC 390 as an independently powered clock enables time stamping of operational data (stored in memory 345 for later export). The voltage sensor 392 monitors the voltage of the back-up power source 335.
When the wireless communication controller 330 establishes a wireless communication link with the external device 300, the wireless communication controller 330 obtains and exports tool usage data, maintenance data, mode information, drive device information, and the like from the power tool 100. The exported information can be used by tool users or owners to log data related to a particular power tool 100 or to specific job activities. The exported and logged data can indicate when work was accomplished and that work was accomplished to specification. The logged data can also provide a chronological record of work that was performed, track duration of tool usage, and the like. The wireless communication controller 330 also imports (i.e., receives) information from the external device 300 into the power tool 100 such as, for example, configuration data, operation thresholds, maintenance thresholds, mode configurations, programming for the power tool 100, and the like.
With reference to
The external device 300 may be, for example, a smart phone (as illustrated), a laptop computer, a tablet computer, a personal digital assistant (PDA), or another electronic device capable of communicating wirelessly with the power tool 100 and providing a user interface. The external device 300 provides the user interface and allows a user to access and interact with tool information. The external device 300 can receive user inputs to determine operational parameters enable or disable features and the like. The user interface of the external device 300 provides an easy-to-use interface for the user to control and customize operation of the power tool 100.
The external device 300 includes a communication interface that is compatible with the wireless communication controller 330 of the power tool 100. The communication interface of the external device may include a wireless communication controller (e.g., a Bluetooth® module) or a similar component. The external device 300, therefore, grants the user access to data related to the power tool 100, and provides a user interface such that the user can interact with the controller of the power tool device 100.
The external device 300 can also share the information obtained from the power tool 100 with a remote server 405 connected by a network 410. The remote server 405 may be used to store the data obtained from the external device 300, storing the information on the remote server 405 allows a user to access the information from a plurality of different locations. In another embodiment, the remote server 405 may collect information from various users regarding their power tool device and provide statistics or statistical measures to the user based on information obtained from different power tools. The network 410 may include various networking devices (e.g., routers, hubs, switches, cellular towers, wireless connections, wired connections, etc.) for connecting to, for example, the Internet, a cellular data network, a local network, or a combination thereof. In some embodiments, the power tool 100 may be configured to communicate directly with the server 405 through an additional wireless interface or with the same wireless interface that the power tool 100 uses to communicate with the external device 300.
The external device 300 includes a memory 415 storing core application software 420, tool profiles 425, temporary configuration data 430, tool interfaces 435, tool data 440 including received tool identifiers 445, and received tool operation data 450. The external device 300 further includes a processor 455, a touch screen display 460, and an external wireless communication controller 465. The processor 455 and the memory 415 may be part of a controller having similar components as electronic processor 180. The touch screen display 460 allows the external device 108 to output visual data to a user and receive user inputs. Although not illustrated, the external device 108 may include other input devices (e.g., buttons, dials, toggle switches, and a microphone for voice control) and other user outputs (e.g., speakers and tactile feedback devices). Additionally, in some instances, the external device 300 has a display without touch screen input capability and receives user input via other input devices. The external device 300 communicates wirelessly with the wireless communication controller 465, e.g., using a Bluetooth® or Wi-Fi® protocol. The external wireless communication controller 465 includes two separate wireless communication controllers, one for communicating with the wireless communication controller 330 of the power tool 100 (e.g., using Bluetooth® or Wi-Fi® communications) and another for communicating with the server 405 (e.g., using Wi-Fi or cellular communications).
The core application software 420 is executed by the processor 455 to generate a graphical user interface (GUI) on the touch screen display 460 enabling the user to interact with the power tool 100 and communicate with the server 405. In some embodiments, a user may access a repository of software applications (e.g., an “app store” or “app marketplace”) using the external device 300 to locate and download the core application software 420, which may be referred to as an “app.” The tool profiles 425, tool interfaces 435, or both may be bundled with the core application software 420 such that, for instance, downloading the “app” includes downloading the core application software 420, tool profiles 425, and tool interface 435. In some embodiments, the app is obtained using other techniques, such as downloading from a website using a web browser on the external device 300. As will become apparent from the description below, at least in some embodiments, the app of the external device 300 provides a user with a single entry point for controlling, accessing, and/or interacting with a multitude of power tools of different types. This approach contrasts, for example, with having a unique app for each tool type or for a small grouping of related tool types.
In the illustrated embodiment, the external device 300 scans a radio wave communication spectrum used by the power tool(s) 100 and identifies any power tool(s) 100 within range of the external device 300. As shown in
Each type of power tool 100 with which the external device 300 can communicate includes an associated tool graphical user interface (tool interface) stored in the tool interfaces 435. Once the external device 300 and the power tool 100 establish a wireless communication link, the core application software 420 accesses the tool interface 435 to obtain the applicable tool interface for the type of power tool 100 selected. The touch screen display 460 then shows the applicable tool interface. A tool interface includes a series of screens enabling the user to obtain operational data, configure the tool, transmit operating modes to the power tool, and more. Since the power tool 100 has limited space for user input buttons, triggers, switches and dials, the external device 300 and the touch screen display 460 provide an extended user interface for the power tool 100, providing further customization and configuration of the power tool 100 than otherwise possible or desirable through physical user interface components on the power tool 100.
As described above, the power tool 100 can operate in four modes and an adaptive mode. The mode profile assigned to (e.g., or associated with) each operating mode of the power tool 100 can be set through the external device 300. When the power tool 100 is in modes one, two, three, or four, the user can view the mode profile assigned to each of the modes. For example, when the power tool 100 is in modes one-four, the external device 300 can display the mode profile associated with a selected mode as shown in
By contrast, when the power tool 100 is in the adaptive mode, the user can view the mode profile assigned to each of the modes, change the parameters associated with each and/or any of the mode profiles assigned to the modes, assign a new mode profile to a mode on the power tool, and/or save a new mode profile. As shown in
In some embodiments, another mode profile 395 (e.g., 395b-d) is copied into the temporary profile 395e upon first entering the adaptive mode and is provided (as the temporary profile 395e) to the external device 300 for populating a control screen (e.g., similar to the control screen shown in
Further, assuming that the power tool 100 is in the adaptive mode, a user may select a profile type not currently assigned to any of the modes on the power tool 100. As shown in
For example, in the illustrated embodiment, the recording mode 477e is selected and the temporary profile 395e is then associated with the recording mode 477e. With reference to the method 600 of
During the recording of the motor parameter, the external device 300 may generate a display to indicate to the user that the power tool 100 is currently recording the motor parameter. The display generated by the external device 300 may include for example a bar that is filled as the power tool 100 continues to record, a display of the recorded motor parameter, and/or may include text reading, for example, “recording.”
In some embodiments, at the end of the recording session, the power tool 100 transmits the recorded operation of the power tool to the external device 300 such that, instead of the external device 300 sending the operational parameters to the power tool 100, the external device 300 receives a recorded operation of the power tool 100 from the power tool 100. For example, in step 625, the electronic processor 180 controls the transceiver 375 of the power tool 100 to transmit the recorded motor parameter to the external device 300. The recorded motor parameter is then received by the external device 300 (step 630). Once the external device 300 receives the recorded operation of the power tool 100, a user can click a save button also located on the tool control screen, assign a name to the recorded operation of the power tool 100, and associate the recorded operation of the power tool 100 with one of the modes as shown in
In some embodiments, the external device 300 then updates the power tool 100 of the assignment of a mode profile (in this example, the recorded operation of the power tool) with mode 1 of the power tool 100 through the wireless communication link. Thereafter, the power tool 100, when operating in mode 1, replicates the operation of the power tool during the recording mode.
As noted, a user can save a new mode profile incorporating the recorded motor parameter. The new mode profile may be named by a user via the external device 300 and then exported and saved on the server 405 in the tool profile bank and/or saved locally on the external device 300 (e.g., in the tool profiles 425). Thereafter, a user can connect the external device 300 to the power tool 100 or to another power tool similar to power tool 100, retrieve the saved new mode profile include the recorded motor parameter, and then transmit and assign the saved new mode profile to the selected power tool. For example, the external device 300 transmits (via the external wireless communication controller 465) the recorded motor parameter (e.g., as part of a profile) to a second power tool (step 635). In some embodiments, the external device 300 saves the recorded motor parameter locally (e.g., in the memory 415) and provides that recorded motor parameter to the second power tool before (or without) sending the recorded motor parameter for storage on the server 405 and later retrieval. With reference to
The second power tool 655 receives the recorded motor parameter at a second transceiver of wireless communication controller 670 (step 640). The recorded motor parameter may be assigned to a mode of the second power tool 655 and then played back, as described elsewhere herein with respect to the similarly configured power tool 100 (see, e.g.,
Further still, a user having a different external device (e.g., external device 510-1), which is similar to the external device 300 (e.g., has similar components as previously described with respect to the external device 300), may retrieve the saved new mode profile from the server 405 or from the external device 300. The different external device can then transmit and assign the saved new mode profile to the power tool 100 or to another other power tool. Accordingly, a user can record a motor parameter and create a new profile for use on the power tool 100 as well as on other tools, and for sharing with other users to use on their other tools.
The recording mode may operate in various ways. For example, after selecting the recording mode 477e on the external device 300, the user may use different methods to start and end the recording session (i.e., indicate when to start and stop recording), and the power tool 100 may additionally be configured to start and/or stop the recording session based on different factors.
As illustrated in
As illustrated in
As illustrated in
As discussed above, the power tool 100 transmits the recorded motor parameter signal 720 to the external device 300 for storage as a new mode profile. In some embodiments, the wireless communication controller 330 transmits the recorded motor parameter signal 720 to the external device 300 in real-time. In other words, as the electronic processor 180 records the motor parameter signal 715, the wireless communication controller 330 transmits the recorded motor parameter signal 720 to the external device 300, such that at the end of the recording session, the recorded motor parameter signal 720 is recorded at both the electronic processor 180 and at the external device 300. In such embodiments, the external device 300 may generate, for example, a graph display graphing the recorded motor parameter signal 720 over time.
In other embodiments, the wireless communication controller 330 transmits the recorded motor parameter signal 720 to the external device 300 at the end of the recording session (e.g., at the end of the time period 495 and/or at the end of the trigger signal at 755 of
In yet other embodiments, the wireless communication controller 330 transmits the recorded motor parameter signal 720 to the external device 300 when the wireless communication controller 330 receives a request from the external device 300 for the recorded motor parameter signal 720. In such embodiments, the electronic processor 180 stores the recorded motor parameter signal 720. The user then establishes a communication link between the power tool 100 and the external device 300 and requests, through an input to the external device 300, that the recorded motor parameter signal 720 be transmitted to the external device 300. The wireless communication controller 330 then transmits the recorded motor parameter signal 720 to the external device 300, which then saves the recorded motor parameter signal 720 as a new mode profile 425.
In some embodiments, the wireless communication controller 330 can transmit the recorded motor parameter signal 720 in each of the methods described above (e.g., in real-time, after recording session ends, and upon receipt of a request signal from the external device 300). In such embodiments, the user may select when and how the recorded motor parameter signal 720 is transmitted to the external device 300 by adjusting settings of the recording mode (e.g., using the external device 300).
Once the recorded motor parameter is saved as a new mode profile and is assigned to a mode on the power tool 100, the power tool 100 can operate according to the recorded motor parameter signal 720.
As illustrated, activation of the trigger at 770 begins execution (or playback) of the recorded motor parameter signal 720 according to what was recorded and stored during the recording mode of pulse diagram 730. While the trigger activation pulse 770 does not match the executed recorded motor parameter signal 720, execution of the recorded motor parameter signal 720 allows for repeatability of the recorded parameter even when the trigger activation signal 770 does not match. Accordingly, a different trigger activation signal profile nevertheless causes the recorded motor parameter signal 720 to be executed. In this manner, the recorded motor parameter signal 720 may be reliably repeated for tasks such as motor line assembly scenarios or other such tasks where predictability of tool use is desired. As illustrated, when the recording time period 495 is ended, the executed recorded motor parameter signal 720 is also ended, and even though trigger activation signal 770 illustrates that the trigger mechanism 195 is still being activated, the tool motor 170 is not activated since the recorded motor parameter signal 720 has ended. The recorded motor parameter signal 720 is not executed again until re-activation of the trigger mechanism 195 a subsequent time during playback mode 765 in one embodiment.
According to another embodiment of the invention, the recorded motor parameter signal 720 is repeatedly executed as long as the trigger mechanism 195 is activated. In this manner, for example, a recorded parameter signal (e.g., the recorded motor parameter signal 720) that oscillates the motor parameter between two or more values may continue to oscillate the motor parameter for a longer duration of the trigger activation. As such, a short recorded signal may be extended and be executed many times repeatedly during a long trigger activation time.
As illustrated, however, at the end of a first trigger activation time 785 that may be caused, for example, by the user releasing the trigger mechanism 195, playback of the recorded motor parameter signal 720 is halted when the trigger mechanism 195 is released. When the trigger mechanism 195 is re-activated during a subsequent trigger activation signal 790, the recorded motor parameter signal 720 is played back from the beginning during a second trigger activation time 795 even though it was halted during the previous execution. In this manner, playback of the recorded motor parameter signal 720 is re-initiated from the beginning each time the trigger mechanism 195 is re-activated.
Similar to that illustrated in
Once the recording session has ended, the wireless communication controller 330 transmits the recorded motor parameter signal 720 to the external device 300 in the methods described above (step 940). When the wireless communication controller 330 transmits the recorded motor parameter signal 720 to the external device 300, the external device 300 stores the recorded motor operation (e.g., the recorded motor parameter signal 720) as a new mode profile as shown in
In the method described with respect to
Once the recording session has ended, the wireless communication controller 330 transmits the recorded motor parameter signal 720 to the external device 300 as described above (step 970). Also, once the recording mode has ended, the user is prompted to save the recorded motor parameter as a new mode profile and assign the mode profile to a mode on the power tool, for example, mode one (step 975). When the power tool 100 is placed in mode one via the mode pad 270, the electronic processor 180 executes the recorded motor parameter 720 upon activation of the trigger 205 as described with respect to
In some embodiments, the power tool 100 also includes a record and playback selector 985 on the power tool 100. The record and playback selector 985 allows a user to assign a “record and playback” mode profile to one of the four modes of the power tool 100 and then control when the power tool 100 switches from a recording mode to a playback mode from the power tool 100 itself. In embodiments including the record and playback selector 985, the power tool 100 can operate in a playback mode in which the desired motor parameter is replicated after the motor parameter has been recorded. For example, if the desired motor parameter is the motor current, the power tool 100 records the current provided to the motor while the power tool 100 is in the recording mode (e.g., the power tool 100 records that at 0.05 seconds, the motor current is 1 Amp, at 0.1 seconds, the motor current is 1.2 A, etc.). Then, during the playback mode, the power tool 100 replicates the operation profile generated during the recording mode such that the power tool 100 replicates the operation of the power tool 100 during the recording mode.
With reference to
In the embodiment illustrated in
In embodiments in which the power tool 100 includes the record and playback selector 985, the power tool 100 receives an indication from the record and playback selector 985 regarding the mode of the power tool 100. As shown in
As shown in
When the wireless communication controller 330 transmits the recorded motor parameter signal 720 to the external device 300, the external device 300 stores the recorded motor operation (e.g., the recorded motor parameter signal 720) as a new mode profile and can assign the mode profile to one of the modes as described with respect to
As shown in
In the illustrated embodiment, the power tool 1100 has five selectable modes (one, two, three, for, and adaptive), each associated with a different one of the mode indicators 1185a-e. the mode selection switch 275 is a pushbutton that cycles through the five selectable modes upon each press (e.g., mode 1, 2, 3, 4, 5, 1, 2, and so on). The adaptive mode is represented by the indicating symbol 1195e (the radio wave symbol). In the adaptive mode, the user is able to configure the power tool 1100 via an external device 300, as is described above. In other embodiments, the power tool 1100 has more or fewer modes, and the mode selection switch 275 may be a different type of switch such as, for example, a slide switch and/or a rotary switch.
One of skill in the art will recognize that embodiments of the invention may be incorporated into tools such as power drills, impact drivers, power saws, angle drivers, and other tools incorporating a user-activated trigger mechanism. One skilled in the art will also recognize that the trigger activation signals, while illustrated as being discrete steps, are merely examples and that other continuous types of trigger activation signals are contemplated herein.
Thus, the invention provides, among other things, a power tool configured to enter a recording mode via an external device, record a motor parameter, and transmit the recorded motor parameter to the external device. Various features and advantages of the invention are set forth in the following claims.
This application claims priority to U.S. Provisional Patent Application No. 62/220,627, filed on Sep. 18, 2015, the entire contents of which are hereby incorporated by reference.
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