CN113531110B - Electronic gear shifting mechanism, control method and vehicle - Google Patents
Electronic gear shifting mechanism, control method and vehicle Download PDFInfo
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- CN113531110B CN113531110B CN202110642828.7A CN202110642828A CN113531110B CN 113531110 B CN113531110 B CN 113531110B CN 202110642828 A CN202110642828 A CN 202110642828A CN 113531110 B CN113531110 B CN 113531110B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
- F16H61/0204—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
- F16H61/0204—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
- F16H61/0213—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal characterised by the method for generating shift signals
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- Gear-Shifting Mechanisms (AREA)
Abstract
The embodiment of the invention provides an electronic gear shifting mechanism, a control method and a vehicle, which comprise a first parking gear switch, a second parking gear switch, a parking gear key and a gear controller, wherein the parking gear key is used for triggering the first parking gear switch and the second parking gear switch, the gear controller is respectively in communication connection with the first parking gear switch and the second parking gear switch, the first parking gear switch is used for responding and generating a digital signal representing a fault state under the condition of being pressed, the second parking gear switch is used for responding and generating an analog signal representing the fault state under the condition of being pressed, and the gear controller is used for determining the current state of a parking gear according to the digital signal and/or the analog signal. According to the technical scheme of the embodiment of the invention, the embodiment of the invention adopts a dual-redundancy design of hardware and software to control the parking gear, so that the failure of the parking gear is greatly reduced.
Description
Technical Field
The embodiment of the invention relates to the technical field of vehicles, in particular to an electronic gear shifting mechanism, a control method, a vehicle and a computer-readable storage medium.
Background
With the development of automobile electromotion, intellectualization, networking and sharing, an electronic gear shifting mechanism which is convenient for realizing intelligent control is usually selected and used by an electric automobile as an important safety component of the automobile, the driving safety is affected by electronic gear shifting failure, and particularly when a P gear fails, the automobile cannot stop and has a large hazard, so the failure of the P gear needs to be considered in a key way. At present, P-gear failure of the electronic shifter is generally controlled by a single electronic unit and software, the failure mode of the electronic unit and the software is complex, and the failure is difficult to avoid even with high technical requirements.
Disclosure of Invention
The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.
The embodiment of the invention provides an electronic gear shifting mechanism, a control method, a vehicle and a computer readable storage medium, wherein a parking gear is controlled by adopting a dual-redundancy design of hardware and software, so that the occurrence of failure of the parking gear is greatly reduced.
In a first aspect, an embodiment of the present invention provides an electronic shift mechanism, including:
a first parking position switch and a second parking position switch;
the parking gear key is used for triggering the first parking gear switch and the second parking gear switch;
the gear controller is respectively in communication connection with the first parking gear switch and the second parking gear switch;
the first parking gear switch is used for responding and generating a digital signal representing a fault state under the condition of being pressed, the second parking gear switch is used for responding and generating an analog signal representing the fault state under the condition of being pressed, and the gear controller is used for determining the current state of the parking gear according to the digital signal and/or the analog signal.
In some embodiments, the first parking position switch and the gear controller are communicated through a LIN line, and the second parking position switch and the gear controller are communicated through a hard line.
In some embodiments, the electronic shifting mechanism further includes an LED light electrically connected to the gear controller.
In a second aspect, an embodiment of the present invention further provides a control method for an electronic shift mechanism, which is applied to the electronic shift mechanism, where the electronic shift mechanism includes a parking range key, a first parking range switch, a second parking range switch, and a range controller, the parking range key is used to trigger the first parking range switch and the second parking range switch, and the first parking range switch and the second parking range switch are respectively in communication connection with the range controller;
the control method comprises the following steps:
the parking gear key triggers the first parking gear switch and the second parking gear switch;
in the case where the first parking position switch generates a digital signal for indicating a fault state in response and the second parking position switch generates an analog signal for indicating a fault state in response, the position controller determines the current state of the parking position based on the digital signal and/or the analog signal.
In some embodiments, the analog signal is a voltage signal, and the gear controller determines the current state of the parking gear according to the analog signal, including one of:
under the condition that the parking gear key presses the first parking gear switch or is separated from the first parking gear switch and the second parking gear switch, when the voltage variation is smaller than a first preset value in a first time period, determining that the current state of the parking gear is a loop fault state;
under the condition that the parking gear key presses and collides the first parking gear switch and the second parking gear switch, when the voltage variation is larger than a second preset value and smaller than a third preset value in a second time period, determining that the current state of a parking gear is a loop fault state;
and under the condition that the parking gear key presses and collides the first parking gear switch and the second parking gear switch, when the voltage variation is greater than a fourth preset value in a third time period, determining that the current state of the parking gear is an open-circuit fault state.
In some embodiments, the gear controller determines the current state of the parking gear according to the digital signal, including one of:
under the condition that the parking gear key presses and collides the first parking gear switch and the second parking gear switch, when the digital signal is 1, determining that a fault exists in the parking gear currently;
and under the condition that the parking gear key presses and collides the first parking gear switch and the second parking gear switch, when the digital signal is 0, determining that no fault exists in the parking gear currently.
In some embodiments, the electronic shifting mechanism further includes an LED lamp electrically connected to the gear controller, the control method further comprising:
and when the current state of the parking gear is a fault state, sending a driving signal to the LED lamp to enable the LED lamp to be turned on.
In some embodiments, the gear controller is communicatively connected to the vehicle controller, and the control method further comprises:
and when the current state of the parking gear is a fault state, transmitting a gear fault signal to the vehicle control unit so that the vehicle control unit stops executing gear shifting operation and keeps transmitting current gear information to the gear control unit.
In some embodiments, the gear controller is communicatively coupled to a vehicle instrument, the control method further comprising:
and when the current state of the parking gear is a fault state, sending a prompt signal to the vehicle instrument so that the vehicle instrument displays a fault prompt picture, displays fault prompt characters or sends a fault prompt sound.
In a third aspect, embodiments of the present invention further provide a vehicle including the electronic shift mechanism according to the first aspect, or a vehicle capable of executing the control method of the electronic shift mechanism according to the second aspect.
In a fourth aspect, the present invention further provides a computer-readable storage medium, which is capable of executing the method for controlling an electronic gear shift mechanism according to the second aspect.
The embodiment of the invention comprises the following steps: the electronic gear shifting mechanism comprises a first parking gear switch, a second parking gear switch, a parking gear key and a gear controller, wherein the parking gear key is used for triggering the first parking gear switch and the second parking gear switch, the gear controller is respectively in communication connection with the first parking gear switch and the second parking gear switch, the first parking gear switch is used for responding and generating a digital signal representing a fault state under the condition of being pressed, the second parking gear switch is used for responding and generating an analog signal representing the fault state under the condition of being pressed, and the gear controller is used for determining the current state of a parking gear according to the digital signal and/or the analog signal. According to the technical scheme of the embodiment of the invention, the embodiment of the invention adopts a dual-redundancy design of hardware and software to control the parking gear, so that the failure of the parking gear is greatly reduced.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.
FIG. 1 is a schematic diagram of a gear controller for implementing a method of controlling an electronic shifting mechanism in accordance with one embodiment of the present invention;
FIG. 2 is a schematic view of an electronic shifting mechanism provided in accordance with an embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating a connection relationship between an electronic shifting mechanism, a vehicle control unit and a vehicle instrument according to an embodiment of the present invention;
FIG. 4 is a flowchart of a method for controlling an electronic shifting mechanism in accordance with one embodiment of the present invention;
FIG. 5 is a flowchart of a method for controlling an electronic shifting mechanism according to another embodiment of the present invention;
FIG. 6 is a flowchart of a method for controlling an electronic shifting mechanism in accordance with another embodiment of the present invention;
FIG. 7 is a flowchart of a method for controlling an electronic shifting mechanism in accordance with another embodiment of the present invention;
FIG. 8 is a flowchart of a method for controlling an electronic shifting mechanism in accordance with another embodiment of the present invention;
FIG. 9 is a flowchart of a method for controlling an electronic shifting mechanism in accordance with another embodiment of the present invention;
FIG. 10 is a flowchart of a method for controlling an electronic shifting mechanism in accordance with another embodiment of the present invention;
FIG. 11 is a flowchart of a method of controlling an electronic shifting mechanism in accordance with another embodiment of the present invention;
fig. 12 is a flowchart of a control method of an electronic shifting mechanism according to another embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that although functional blocks are partitioned in a schematic diagram of an apparatus and a logical order is shown in a flowchart, in some cases, the steps shown or described may be performed in a different order than the partitioning of blocks in the apparatus or the order in the flowchart. The terms "first," "second," and the like in the description, in the claims, or in the foregoing drawings, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
In the related art, with the development of electric, intelligent, networking and sharing of automobiles, an electronic gear shifting mechanism which is convenient for realizing intelligent control is usually selected and used by an electric automobile, and as an important safety component of the automobile, the driving safety is affected by electronic gear shifting failure, and particularly when a P gear fails, the vehicle cannot stop and is damaged greatly, so that important consideration needs to be given to the failure of the P gear. At present, P-gear failure of the electronic shifter is generally controlled by a single electronic unit and software, the failure mode of the electronic unit and the software is complex, and the failure is difficult to avoid even with high technical requirements.
Based on the above situation, an electronic gear shifting mechanism, a control method, a vehicle and a computer readable storage medium are provided in an embodiment of the present invention, where the electronic gear shifting mechanism includes a first parking switch, a second parking switch, a parking key and a gear controller, where the parking key is used to trigger the first parking switch and the second parking switch, the gear controller is respectively connected to the first parking switch and the second parking switch in a communication manner, the first parking switch is used to generate a digital signal representing a fault state in response to being pressed, the second parking switch is used to generate an analog signal representing the fault state in response to being pressed, and the gear controller is used to determine a current state of a parking gear according to the digital signal and/or the analog signal. According to the technical scheme of the embodiment of the invention, the embodiment of the invention adopts a dual-redundancy design of hardware and software to control the parking gear, so that the failure of the parking gear is greatly reduced.
The embodiments of the present invention will be further explained with reference to the drawings.
As shown in fig. 1, fig. 1 is a schematic diagram of a gear controller 100 for executing a control method of an electronic shift mechanism according to an embodiment of the present invention.
In the example of fig. 1, the gear controller 100 is provided with a processor 110 and a memory 120, wherein the processor 110 and the memory 120 may be connected by a bus or other means, and fig. 1 takes the example of connection by a bus as an example.
The memory 120, which is a non-transitory computer readable storage medium, may be used to store non-transitory software programs as well as non-transitory computer executable programs. Further, the memory 120 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory 120 optionally includes memory 120 located remotely from the processor 110, and these remote memories may be connected to the gear controller 100 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
It will be understood by those skilled in the art that the level controller 100 may be applied to a 3G communication network system, an LTE communication network system, a 5G communication network system, a mobile communication network system that is evolved later, and the like, which is not limited in this embodiment.
Those skilled in the art will appreciate that the position controller 100 illustrated in FIG. 1 is not intended to limit embodiments of the present invention and may include more or fewer components than those illustrated, or some of the components may be combined, or a different arrangement of components.
In the gear controller 100 shown in fig. 1, the processor 110 may call a control program of the electronic shift mechanism stored in the memory 120, so as to execute a control method of the electronic shift mechanism.
Based on the above-described shift controller, various embodiments of the structure of the electronic shift mechanism of the present invention are presented below.
As shown in fig. 2, fig. 2 is a schematic diagram of an electronic gearshift mechanism according to an embodiment of the present invention, the electronic gearshift mechanism according to the embodiment of the present invention includes a first parking position switch 310, a second parking position switch 320, a parking position button 200, and a gear controller 100, wherein the parking position button 200 is used for triggering the first parking position switch 310 and the second parking position switch 320, and the gear controller 100 is in communication connection with the first parking position switch 310 and the second parking position switch 320, respectively.
Specifically, first parking range switch 310 and gear controller 100 communicate with each other through a LIN line, and second parking range switch 320 and gear controller 100 communicate with each other through a hard line.
In addition, the electronic gearshift mechanism further includes a mounting structure 400, the first parking position switch 310, the second parking position switch 320 and the parking position button 200 are all disposed in a cavity of the mounting structure 400, and the parking position button 200 can move relative to the first parking position switch 310 and the second parking position switch 320.
In addition, the electronic gear shift mechanism further includes an LED lamp 500, the LED lamp 500 is electrically connected to the gear controller 100, and the LED lamp 500 is disposed on the mounting structure 400. The LED lamp 500 of the embodiment of the invention may be a light bar.
Based on the electronic shift mechanism described above, various embodiments of the structure of the vehicle of the present invention are set forth below.
As shown in fig. 3, fig. 3 is a schematic diagram of a connection relationship among an electronic shift mechanism, a vehicle control unit, and a vehicle instrument according to an embodiment of the present invention. The vehicle in the embodiment of the present invention includes the electronic shift mechanism shown in fig. 2, and further includes a vehicle controller 600 and a vehicle instrument 700, wherein the gear controller 100 in the electronic shift mechanism is in communication connection with the vehicle controller 600 through a CAN bus, and the gear controller 100 is also in communication connection with the vehicle instrument 700 through the CAN bus.
Based on the electronic gear shifting mechanism, the vehicle control unit and the vehicle instrument, various embodiments of the control method of the electronic gear shifting mechanism of the invention are provided below.
As shown in fig. 4, fig. 4 is a flowchart of a control method of an electronic shifting mechanism according to an embodiment of the present invention, and the control method includes, but is not limited to, steps S100 and S200.
Step S100, triggering a first parking gear switch and a second parking gear switch by a parking gear key;
and step S200, under the condition that the first parking position switch responds to generate a digital signal for representing a fault state, and the second parking position switch responds to generate an analog signal for representing the fault state, the gear controller determines the current state of the parking position according to the digital signal and/or the analog signal.
The electronic gear shifting mechanism comprises a first parking gear switch, a second parking gear switch, a parking gear key and a gear controller, wherein the parking gear key is used for triggering the first parking gear switch and the second parking gear switch, the gear controller is respectively in communication connection with the first parking gear switch and the second parking gear switch, the first parking gear switch is used for responding and generating a digital signal representing a fault state under the condition of being pressed, the second parking gear switch is used for responding and generating an analog signal representing the fault state under the condition of being pressed, and the gear controller is used for determining the current state of a parking gear according to the digital signal and/or the analog signal. According to the technical scheme of the embodiment of the invention, the embodiment of the invention adopts a dual-redundancy design of hardware and software to control the parking gear, so that the failure of the parking gear is greatly reduced.
In addition, when the analog signal is a voltage signal, the gear controller in step S200 determines the current state of the parking gear according to the analog signal, and the corresponding determination situation includes, but is not limited to, the steps in the flowcharts of fig. 5 to 7.
Referring to fig. 5, fig. 5 is a flowchart of a control method of an electronic gearshift mechanism according to another embodiment of the present invention, when the analog signal is a voltage signal, the gear controller in step S200 determines the current state of the parking range according to the analog signal, which includes but is not limited to step S300.
Step 300, under the condition that the parking gear key presses the first parking gear switch and the second parking gear switch in a conflict or a conflict is avoided, when the voltage variation is smaller than a first preset value in a first time period, the current state of the parking gear is determined to be a loop fault state.
As shown in fig. 6, fig. 6 is a flowchart of a control method of an electronic gearshift mechanism according to another embodiment of the present invention, when the analog signal is a voltage signal, the gear controller in step S200 determines the current state of the parking range according to the analog signal, including but not limited to step S400.
And step S400, under the condition that the parking gear key presses the first parking gear switch and the second parking gear switch in conflict, when the voltage variation is larger than a second preset value and smaller than a third preset value in a second time period, determining that the current state of the parking gear is a loop fault state.
Referring to fig. 7, fig. 7 is a flowchart of a control method of an electronic gearshift mechanism according to another embodiment of the present invention, when the analog signal is a voltage signal, the gear controller in step S200 determines the current state of the parking range according to the analog signal, including but not limited to step S500.
And S500, under the condition that the parking gear key presses the first parking gear switch and the second parking gear switch in a butting mode, when the voltage variation in the third time period is larger than a fourth preset value, determining that the current state of the parking gear is an open-circuit fault state.
Based on the process steps in fig. 5 to 7, the gear controller can detect the parking range key state and the open/short fault of the wire harness by the second parking range switch in a voltage division manner.
In addition, regarding the gear controller in the above step S200 determining the current state of the parking range according to the digital signal, the corresponding determination conditions include, but are not limited to, the flow steps in fig. 8 to 9.
As shown in fig. 8, fig. 8 is a flowchart of a control method of an electronic gear shifting mechanism according to another embodiment of the present invention, and the gear controller in step S200 determines the current state of the parking range according to the digital signal, including but not limited to step S600.
And step S600, under the condition that the parking gear key is pressed to touch the first parking gear switch and the second parking gear switch, when the digital signal is 1, determining that the parking gear has a fault at present.
As shown in fig. 9, fig. 9 is a flowchart of a control method of an electronic gear shifting mechanism according to another embodiment of the present invention, and the gear controller in step S200 determines the current state of the parking range according to the digital signal, including but not limited to step S700.
Step S700, under the condition that the parking gear key is pressed to touch the first parking gear switch and the second parking gear switch, when the digital signal is 0, determining that no fault exists in the parking gear currently.
Based on the steps in fig. 8 to 9, the gear controller can detect the actuation of the parking range key through the first parking range switch, and detect the jamming and short-circuit fault through a software method.
In addition, as shown in fig. 10, fig. 10 is a flowchart of a control method of an electronic shift mechanism according to another embodiment of the present invention, the electronic shift mechanism further includes an LED lamp, the LED lamp is electrically connected to the gear controller, and the control method further includes, but is not limited to, step S800.
And step S800, when the current state of the parking gear is a fault state, sending a driving signal to the LED lamp to enable the LED lamp to be turned on.
In addition, as shown in fig. 11, fig. 11 is a flowchart of a control method of an electronic gear shifting mechanism according to another embodiment of the present invention, the gear controller is communicatively connected to the vehicle control unit, and the control method further includes, but is not limited to, step S900.
And S900, when the current state of the parking gear is a fault state, transmitting a gear fault signal to the vehicle control unit so that the vehicle control unit stops executing the gear shifting operation and keeps transmitting the current gear information to the gear control unit.
Specifically, the vehicle body controller arbitrates that the parking range is not allowed to be replaced after the parking range is failed, and the parking range takes precedence.
In addition, as shown in fig. 12, fig. 12 is a flowchart of a control method of an electronic gear shifting mechanism according to another embodiment of the present invention, the gear controller is communicatively connected to a vehicle meter, and the control method further includes, but is not limited to, step S1000.
And S1000, when the current state of the parking gear is a fault state, sending a prompt signal to the vehicle instrument so that the vehicle instrument displays a fault prompt picture, displays fault prompt words or sends out a fault prompt tone.
In conclusion, under the condition that the parking gear is ensured not to fail, hardware and software are designed in a dual redundancy mode, and meanwhile, the electronic gear shifter and the vehicle instrument are added with failure reminding functions such as light, pictures, characters, sounds and the like; finally, the vehicle body controller uses the control logic of parking gear priority to prevent the occurrence of failure and harm of the parking gear.
Based on the electronic shift mechanism and the control method thereof described above, various embodiments of the shift controller, the vehicle, and the computer-readable storage medium of the present invention are set forth below.
In addition, an embodiment of the present invention provides a gear controller including: the control method of the electronic gear shifting mechanism comprises the following steps of storing a computer program, storing a processor and executing the computer program on the processor, wherein the processor executes the computer program to realize the control method of the electronic gear shifting mechanism.
It will be appreciated that the processor and memory may be connected by a bus or other means.
It should be noted that the shift controller in the present embodiment may correspond to the shift controller in the embodiment shown in fig. 1, and both of them belong to the same inventive concept, so that both of them have the same implementation principle and beneficial effect, and are not described in detail herein.
The non-transitory software programs and instructions required to implement the control method of the electronic shift mechanism of the above-described embodiment are stored in the memory, and when executed by the processor, the control method of the electronic shift mechanism of the above-described embodiment is executed, for example, the method steps S100 to S200 in fig. 4, the method step S300 in fig. 5, the method step S400 in fig. 6, the method step S500 in fig. 7, the method step S600 in fig. 8, the method step S700 in fig. 9, the method step S800 in fig. 10, the method step S900 in fig. 11, and the method step S1000 in fig. 12, which are described above, are executed.
It should be noted that, the specific implementation manner and the technical effects of the gear controller according to the embodiment of the present invention can be referred to the specific implementation manner and the technical effects of the control method of the electronic shift mechanism.
Additionally, one embodiment of the present invention provides a vehicle including, but not limited to, the above-described gear controller.
It should be noted that, since the vehicle according to the embodiment of the present invention includes the above-mentioned gear controller, and the above-mentioned gear controller can execute the above-mentioned control method of the electronic shift mechanism, the specific implementation and technical effects of the vehicle according to the embodiment of the present invention can be referred to the specific implementation and technical effects of the control method of the electronic shift mechanism.
Furthermore, an embodiment of the present invention also provides a computer-readable storage medium, which stores computer-executable instructions for executing the above-mentioned control method of the electronic shift mechanism, for example, executing the above-mentioned method steps S100 to S200 in fig. 4, the method step S300 in fig. 5, the method step S400 in fig. 6, the method step S500 in fig. 7, the method step S600 in fig. 8, the method step S700 in fig. 9, the method step S800 in fig. 10, the method step S900 in fig. 11, and the method step S1000 in fig. 12.
One of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the foregoing and various other changes, omissions and deviations in the form and detail thereof may be made without departing from the scope of this invention.
Claims (9)
1. An electronic shifting mechanism, comprising:
a first parking position switch and a second parking position switch;
the parking gear key is used for triggering the first parking gear switch and the second parking gear switch;
the gear controller is respectively in communication connection with the first parking gear switch and the second parking gear switch;
the first parking gear switch is used for responding and generating a digital signal for representing a fault state under the condition of being pressed, the second parking gear switch is used for responding and generating an analog signal for representing the fault state under the condition of being pressed, and the gear controller is used for determining the current state of a parking gear according to the digital signal and/or the analog signal;
the gear controller determines the current state of the parking gear according to the digital signal, wherein the current state of the parking gear comprises one of the following states:
under the condition that the parking gear key is pressed to abut against the first parking gear switch and the second parking gear switch, when the digital signal is 1, determining that a fault exists in a parking gear currently;
and under the condition that the parking gear key presses and collides the first parking gear switch and the second parking gear switch, when the digital signal is 0, determining that no fault exists in the parking gear currently.
2. The electronic shift mechanism according to claim 1, wherein the first parking position switch and the position controller communicate with each other through a LIN line, and the second parking position switch and the position controller communicate with each other through a hard wire.
3. The electronic shifting mechanism of claim 1, further comprising an LED light electrically connected to the gear controller.
4. The control method of the electronic gear shifting mechanism is characterized by being applied to the electronic gear shifting mechanism, wherein the electronic gear shifting mechanism comprises a parking gear key, a first parking gear switch, a second parking gear switch and a gear controller, the parking gear key is used for triggering the first parking gear switch and the second parking gear switch, and the first parking gear switch and the second parking gear switch are respectively in communication connection with the gear controller;
the control method comprises the following steps:
the parking gear key triggers the first parking gear switch and the second parking gear switch;
in the case that the first parking position switch generates a digital signal for representing a fault state in response and the second parking position switch generates an analog signal for representing the fault state in response, the position controller determines the current state of the parking position according to the digital signal and/or the analog signal;
the gear controller determines the current state of the parking gear according to the digital signal, wherein the current state of the parking gear comprises one of the following states:
under the condition that the parking gear key presses and collides the first parking gear switch and the second parking gear switch, when the digital signal is 1, determining that a fault exists in the parking gear currently;
and under the condition that the parking gear key presses and collides the first parking gear switch and the second parking gear switch, when the digital signal is 0, determining that no fault exists in the parking gear currently.
5. The control method of claim 4, wherein the analog signal is a voltage signal, and the gear controller determines the current state of the parking gear according to the analog signal, including one of:
under the condition that the parking gear key presses the first parking gear switch or is separated from the first parking gear switch and the second parking gear switch, when the voltage variation is smaller than a first preset value in a first time period, determining that the current state of the parking gear is a loop fault state;
under the condition that the parking gear key presses and collides the first parking gear switch and the second parking gear switch, when the voltage variation is larger than a second preset value and smaller than a third preset value in a second time period, determining that the current state of a parking gear is a loop fault state;
and under the condition that the parking gear key presses and collides the first parking gear switch and the second parking gear switch, when the voltage variation is greater than a fourth preset value in a third time period, determining that the current state of the parking gear is an open-circuit fault state.
6. The control method according to claim 4, wherein the electronic shift mechanism further includes an LED lamp electrically connected to the shift controller, the control method further comprising:
and when the current state of the parking gear is a fault state, sending a driving signal to the LED lamp to enable the LED lamp to be turned on.
7. The control method of claim 4, wherein the gear controller is communicatively coupled to a vehicle controller, the control method further comprising:
and when the current state of the parking gear is a fault state, transmitting a gear fault signal to the vehicle control unit so that the vehicle control unit stops executing gear shifting operation and keeps transmitting current gear information to the gear control unit.
8. The control method of claim 4, wherein the gear controller is communicatively coupled to a vehicle instrument, the control method further comprising:
and when the current state of the parking gear is a fault state, sending a prompt signal to the vehicle instrument so as to enable the vehicle instrument to display a fault prompt picture, display fault prompt words or send a fault prompt sound.
9. A vehicle characterized by comprising the electronic shift mechanism according to any one of claims 1 to 3, or being capable of executing the control method of the electronic shift mechanism according to any one of claims 4 to 8.
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