Electronic shifter gear position character backlight display control method, electronic shifter and vehicle
By designing control methods compatible with different signal types in electronic shifters, the high cost problem caused by the diverse signal types of traditional shifters is solved, and the generalization of background lighting modules and the development efficiency improvement is achieved.
Patent Information
- Application Number
- CN202310340467.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-03-31
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2043-03-31
AI Technical Summary
In the prior art, the gear character background lighting input signals of traditional gear shifters have diverse types and are incompatible, resulting in excessive state of electronic shifters and vehicle wiring harness components, high management and development costs and low efficiency.
An electronic shifter gear character background light display control method is designed, and a hard-wired signal is obtained through the first signal interface and a CAN signal is obtained through the second signal interface. Combined with the MCU processing unit, compatibility and brightness adjustment control for different signal types are realized.
It realizes compatibility with ILL+ hard-wire signals, PWM hard-wire signals and CAN signals, reduces management and development costs, improves development efficiency, and realizes the generalization of the background lighting module of the entire vehicle.
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Figure CN116461421B_ABST
Abstract
Description
Technical Field
[0001] The present invention is used for a gear shifter of a vehicle, and particularly relates to a method for controlling a background light display of gear position characters of an electronic gear shifter, an electronic gear shifter and a vehicle. Background Art
[0002] The input signal for the gear character background lighting of a traditional shifter is a hard-wired signal. This hard-wired signal includes two types: the first is a high-low level signal (abbreviated as ILL+), which can only realize the background light on and off function and cannot adjust the background light brightness in stages; the second is a PWM signal, which can realize on and off, and can also adjust the background light brightness in stages.
[0003] With the development of automobile electrification and intelligence, wire-controlled electronic shifters with CAN communication function have become increasingly common. The gear character background lighting input synchronization of electronic shifters with CAN communication function has also added corresponding CAN signals. The CAN signal can replace the PWM signal to realize the on and off function and also adjust the background light brightness in grades. This is the third type of gear character background lighting input signal type.
[0004] The three types of input signals mentioned above often coexist across different vehicle models, or even within different configurations of the same vehicle. Furthermore, vehicle functions also vary in their requirements for adjustable backlight brightness. Conventionally, different electronic shifter and vehicle wiring harness states are used to map these input signals one to one. However, this results in a plethora of component states for both the electronic shifter and the vehicle wiring harness, increasing management and development costs while also reducing development efficiency. Summary of the Invention
[0005] The present invention provides a method for controlling the backlight display of gear position characters of an electronic shifter, an electronic shifter, and a vehicle. The method is compatible with three types of backlight input signals: ILL+hard-wire signal, PWM hard-wire signal, and CAN signal, and can simultaneously realize the brightness adjustment function of the entire vehicle under different background light brightness requirements; at the same time, the electronic shifter backlight module and the corresponding vehicle wiring harness interface are universalized, which reduces management costs and development costs, while improving development efficiency.
[0006] The technical solution of the present invention is:
[0007] The present invention provides a method for controlling the background light display of gear position characters of an electronic gear shifter. The electronic gear shifter uses a first signal interface to obtain a hard-wired signal indicating a requirement for turning the background light of the gear position characters on and off and a requirement for the brightness level of the background light of the gear position characters, and uses a second signal interface to receive a CAN signal indicating a requirement for turning the background light of the gear position characters on and off and a requirement for the brightness level of the background light of the gear position characters. The control method includes:
[0008] Periodically obtain hard-wired signals and / or CAN signals representing the on / off requirements of the gear character background light;
[0009] Based on the acquired hard-line signal and / or CAN signal, the electronic shifter gear position character background light on / off control and the electronic shifter gear position character background light brightness level adjustment control are performed.
[0010] Preferably, the steps of controlling the on / off of the electronic shifter gear position character background light and adjusting the brightness level of the electronic shifter gear position character background light based on the acquired hard-wire signal and / or CAN signal include:
[0011] If only a hard-wire signal or a CAN signal is obtained, the electronic shifter gear position character background light is directly controlled to be on or off based on the obtained hard-wire signal or the CAN signal, and the electronic shifter gear position character background light is controlled to be adjusted according to the gear position character background light brightness level requirement;
[0012] If the hard-line signal and the CAN signal are obtained at the same time and the gear character background light on / off requirements represented by the hard-line signal and the CAN signal are inconsistent, the gear character background light on requirement and the gear character background light brightness level requirement corresponding to the gear character background light on requirement will be responded to first, the electronic gear shifter gear character background light will be controlled to light up, and the electronic gear shifter gear character background light will be controlled to be adjusted according to the gear character background light brightness level requirement;
[0013] If the hard-wire signal and the CAN signal are obtained at the same time and the gear character background light on-off requirements represented by the hard-wire signal and the CAN signal are both on requirements, the electronic gear shifter gear character background light is controlled to light up in response to the CAN signal or the hard-wire signal in a pre-calibrated order, and the electronic gear shifter gear character background light is controlled to be adjusted according to the gear character background light brightness level requirement.
[0014] Preferably, the hard-wire signal is an ILL+ signal or a PWM signal, and the steps of controlling the lighting of the electronic shifter gear character background light and adjusting its brightness level in response to the CAN signal or the hard-wire signal in a pre-calibrated order include:
[0015] If the hard-line signal is an ILL+ signal, and both the ILL signal and the CAN signal show that the gear character background light brightness level requirement is a non-dimming requirement, then in response to the ILL signal, the electronic gear shifter gear character background light is controlled to light up according to the preset brightness level; if the hard-line signal is an ILL+ signal, the ILL signal shows that the gear character background light brightness level requirement is a non-dimming requirement, and the CAN signal shows that the gear character background light brightness level requirement is a graded dimming requirement, then in response to the CAN signal, the electronic gear shifter gear character background light is controlled to light up according to the brightness level corresponding to the graded dimming requirement in the CAN signal;
[0016] If the hard-wire signal is a PWM signal, the PWM signal indicates that the brightness level requirement of the gear character background light is a graded dimming requirement, and the CAN signal indicates that the brightness level requirement of the gear character background light is a non-dimming requirement, then in response to the PWM signal, the electronic shifter gear character background light is controlled to light up according to the brightness level corresponding to the graded dimming requirement in the PWM signal;
[0017] If the hard-wire signal is a PWM signal, and both the PWM signal and the CAN signal show that the brightness level requirement of the gear character background light is a graded dimming requirement, then in response to the PWM signal, the electronic shifter gear character background light is controlled to light up according to the brightness level corresponding to the graded dimming requirement in the PWM signal.
[0018] The present invention also provides an electronic gear shifter, comprising:
[0019] Gear position character background lighting module;
[0020] A first signal interface is used to collect hard-wired signals representing the on / off requirements of the background light of the gear character and the brightness level requirements of the background light of the gear character;
[0021] The second signal interface is used to collect CAN signals representing the on / off requirements of the background light of the gear position characters and the brightness level requirements of the background light of the gear position characters;
[0022] an MCU processing unit connected to the first signal interface and the second signal interface, and configured to:
[0023] Periodically obtain hard-wired signals and / or CAN signals representing the on / off requirements of the gear character background light;
[0024] Based on the acquired hard-line signal and / or CAN signal, the gear character background light illumination module is controlled to turn on and off the gear character background light and to adjust the brightness level of the gear character background light.
[0025] Preferably, based on the acquired hard-wire signal and / or CAN signal, the steps of controlling the on / off control of the gear character background light illumination module and adjusting the brightness level of the gear character background light include:
[0026] If only a hard-line signal or a CAN signal is obtained, the gear character background light illumination module is controlled to light up or not light up the gear character background light directly based on the obtained hard-line signal or the CAN signal, and the gear character background light illumination module is controlled to adjust the brightness according to the gear character background light brightness level requirement;
[0027] If the hard-line signal and the CAN signal are obtained at the same time and the gear character background light on-off requirements represented by the hard-line signal and the CAN signal are inconsistent, the gear character background light on requirement and the gear character background light brightness level requirement corresponding to the gear character background light on requirement are responded to first, the gear character background light illumination module is controlled to light the gear character background light, and the gear character background light illumination module is controlled to adjust the brightness according to the gear character background light brightness level requirement;
[0028] If the hard-wire signal and the CAN signal are obtained at the same time and the gear character background light on-off requirements represented by the hard-wire signal and the CAN signal are both on requirements, the gear character background light illumination module is controlled to light up the gear character background light in response to the CAN signal or the hard-wire signal in a pre-calibrated order, and the gear character background light illumination module is controlled to adjust the brightness according to the gear character background light brightness level requirement.
[0029] Preferably, the hard-wire signal is an ILL+ signal or a PWM signal, and the steps of responding to the CAN signal or the hard-wire signal in a pre-calibrated order to control the gear character background light illumination module to illuminate the gear character background light, and controlling the gear character background light illumination module to adjust the brightness according to the gear character background light brightness level requirement include:
[0030] If the hard-line signal is ILL+, and both the ILL signal and the CAN signal indicate that the gear character background light brightness level requirement is non-dimming, then in response to the ILL signal, the gear character background light module is controlled to light up according to the preset brightness level;
[0031] If the hard-line signal is ILL+ signal, the ILL signal indicates that the gear character background light brightness level requirement is non-dimming requirement, and the CAN signal indicates that the gear character background light brightness level requirement is graded dimming requirement, then in response to the CAN signal, the gear character background light illumination module is controlled to light up according to the brightness level corresponding to the graded dimming requirement in the CAN signal;
[0032] If the hard-line signal is a PWM signal, the PWM signal indicates that the gear character background light brightness level requirement is a graded dimming requirement, and the CAN signal indicates that the gear character background light brightness level requirement is a non-dimming requirement, then in response to the PWM signal, the gear character background light illumination module is controlled to light up according to the brightness level corresponding to the graded dimming requirement in the PWM signal;
[0033] If the hard-wired signal is a PWM signal, and both the PWM signal and the CAN signal show that the gear character background light brightness level requirement is a graded dimming requirement, then in response to the PWM signal, the gear character background light illumination module is controlled to light up according to the brightness level corresponding to the graded dimming requirement in the PWM signal.
[0034] The present invention also provides a vehicle comprising the above-mentioned electronic shifter.
[0035] The beneficial effects of the present invention are:
[0036] This solution is compatible with three types of background lighting input signals: ILL+ hard-wire signal, PWM hard-wire signal, and CAN signal, and can simultaneously realize the brightness adjustment function of the entire vehicle under different background light brightness requirements; at the same time, it realizes the universalization of the electronic shifter background lighting module and the corresponding vehicle wiring harness interface, reducing management and development costs while improving development efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0037] Figure 1 is a schematic block diagram of the system architecture in this embodiment;
[0038] Figure 2 It is a control logic block diagram in this embodiment;
[0039] Figure 3 Flowchart of the method in this embodiment. DETAILED DESCRIPTION
[0040] Combine Figure 2 and Figure 3 An embodiment of the present invention provides a method for controlling the backlight display of gear position characters on an electronic shifter, wherein the electronic shifter utilizes a first signal interface to obtain a hard-wired signal indicating a requirement for turning the backlight of the gear position characters on and off and a requirement for the brightness level of the backlight of the gear position characters, and utilizes a second signal interface to receive a CAN signal indicating a requirement for turning the backlight of the gear position characters on and off and a requirement for the brightness level of the backlight of the gear position characters; the control method includes:
[0041] S101, periodically obtaining a hard-wire signal and / or a CAN signal representing a requirement for turning on or off the backlight of a gear position character;
[0042] S102 , based on the acquired hard-wire signal and / or CAN signal, performing on-off control of the background light of the electronic shifter gear position characters and performing brightness level adjustment control of the background light of the electronic shifter gear position characters.
[0043] Specifically, step S102 of controlling the on / off and brightness level adjustment of the electronic shifter gear position character background light based on the acquired hard-wire signal and / or CAN signal includes:
[0044] If only a hard-wire signal or a CAN signal is obtained, the electronic shifter gear position character background light is directly controlled to be on or off based on the obtained hard-wire signal or the CAN signal, and the electronic shifter gear position character background light is controlled to be adjusted according to the gear position character background light brightness level requirement;
[0045] If the hard-line signal and the CAN signal are obtained at the same time and the gear character background light on / off requirements represented by the hard-line signal and the CAN signal are inconsistent, the gear character background light on requirement and the gear character background light brightness level requirement corresponding to the gear character background light on requirement will be responded to first, the electronic gear shifter gear character background light will be controlled to light up, and the electronic gear shifter gear character background light will be controlled to be adjusted according to the gear character background light brightness level requirement;
[0046] If the hard-wire signal and the CAN signal are obtained at the same time and the gear character background light on-off requirements represented by the hard-wire signal and the CAN signal are both on requirements, the electronic gear shifter gear character background light is controlled to light up in response to the CAN signal or the hard-wire signal in a pre-calibrated order, and the electronic gear shifter gear character background light is controlled to be adjusted according to the gear character background light brightness level requirement.
[0047] The hard-wire signal is an ILL+ signal or a PWM signal.
[0048] The steps of controlling the lighting of the electronic shifter gear character background light and adjusting the brightness level thereof in response to the CAN signal or the hard-wired signal in a pre-calibrated sequence include:
[0049] If the hard-line signal is an ILL+ signal, and both the ILL signal and the CAN signal show that the gear character background light brightness level requirement is a non-dimming requirement, then in response to the ILL signal, the electronic gear shifter gear character background light is controlled to light up according to the preset brightness level; if the hard-line signal is an ILL+ signal, the ILL signal shows that the gear character background light brightness level requirement is a non-dimming requirement, and the CAN signal shows that the gear character background light brightness level requirement is a graded dimming requirement, then in response to the CAN signal, the electronic gear shifter gear character background light is controlled to light up according to the brightness level corresponding to the graded dimming requirement in the CAN signal;
[0050] If the hard-wire signal is a PWM signal, the PWM signal indicates that the brightness level requirement of the gear character background light is a graded dimming requirement, and the CAN signal indicates that the brightness level requirement of the gear character background light is a non-dimming requirement, then in response to the PWM signal, the electronic shifter gear character background light is controlled to light up according to the brightness level corresponding to the graded dimming requirement in the PWM signal;
[0051] If the hard-wire signal is a PWM signal, and both the PWM signal and the CAN signal show that the brightness level requirement of the gear character background light is a graded dimming requirement, then in response to the PWM signal, the electronic shifter gear character background light is controlled to light up according to the brightness level corresponding to the graded dimming requirement in the PWM signal.
[0052] Combine Figure 1 and Figure 2In this embodiment, according to different input signal types of the gear character background light and the corresponding supported functions and function definitions, the vehicle application requirements are divided into four categories as follows:
[0053]
[0054] For the above four situations, the specific solutions to achieve compatibility are as follows:
[0055] refer to Figure 1 :
[0056] Input of hard-wired signals for gear character background lighting and dimming: On a complete vehicle of a certain model, there will only be one input state for both ILL+ hard-wire and PWM hard-wire signal configurations, that is, the above requirement scenarios ① and ② will not exist at the same time. Based on this, the hard-wired input interfaces of the two are defined as the same pin in the hard-wired interface of the electronic shifter, and then transmitted to the MCU processing unit of the electronic shifter through the exactly same acquisition circuit in the electronic shifter (signal acquisition module, which corresponds to the first signal interface). The MCU processing unit then identifies and distinguishes the two signals based on their different characteristics.
[0057] Input of CAN signals for gear character background lighting and dimming: The vehicle inputs the CAN communication module of the electronic shifter (which corresponds to the second signal interface) through the CAN bus. According to the application requirements of the vehicle, only one of the configurations of situations ③ and ④ will be required for a vehicle model, and the selection is made through the offline configuration of the electronic shifter or the offline configuration of the vehicle.
[0058] Of course, in this embodiment, the electronic shifter also needs to be grounded by the entire vehicle, and the power line of the entire vehicle needs to be connected to the power module of the electronic shifter to achieve power supply.
[0059] The MCU processing unit of the electronic shifter will combine the two demand situations of the hard-wire signal input (① or ②) and the two demand situations of the CAN signal input (③ or ④), that is, a total of 4 combination states. Figure 2 The control logic of Figure 1 The gear character background lighting module is controlled to be compatible with three types of input signals and meet the different lighting application requirements of the vehicle for background light:
[0060] 1. When there is no hard-line signal input, it is defined as the hard-line signal does not light up the backlight input state;
[0061] 2. The MCU processing unit periodically detects and judges the input signal, and performs further logical judgment and control when there is a lighting demand;
[0062] 3. When the MCU processing unit only receives the hard-line lighting signal, the MCU processing unit first distinguishes whether it is a PWM signal or an ILL+ signal according to the signal characteristics, and then controls the background light according to the corresponding signal requirements;
[0063] 4. When the MCU processing unit receives the input of the CAN signal, the processing logic is as follows:
[0064] (1) When the input signal has inconsistent requirements for on and off, the signal with the lighting requirement is executed;
[0065] (2) When the input signals have the same requirements for on / off, i.e., both require lighting, the control logic is as follows for the different requirements for background light brightness levels in the four possible combinations: Combination 1: When both ① and ③ signals are input at the same time, execute according to requirement ①;
[0066] Combination 2: Receives both ① and ④ signals simultaneously and executes according to requirement ④ (prioritizing responses to signals requiring brightness adjustment to implement background light adjustment and thus enhance the user experience);
[0067] Combination 3: When receiving both signal inputs from ② and ③, the system responds to the backlight brightness request from ② (prioritizing the response to the signal requiring brightness adjustment to implement the backlight adjustment function and thus improve the user experience);
[0068] Combination 4: When receiving signal inputs from both ② and ④ at the same time, respond to the backlight brightness requirement of ② (in this case, the hard-wired PWM signal is responded to first, so that the brightness of the backlight can be kept consistent with other switch-type background lights in the vehicle that use hard-wired PWM signals as input).
[0069] The above scheme of this embodiment can be compatible with three types of background light input signals: ILL+ hard-wire signal, PWM hard-wire signal, and CAN signal, and can simultaneously realize the brightness adjustment function of the whole vehicle under different background light brightness requirements; at the same time, it realizes the universalization of the electronic shifter background light module and the corresponding vehicle wiring harness interface, reduces management costs and development costs, and improves development efficiency.
Claims
1. A method for controlling the background light display of gear position characters of an electronic gear shifter, characterized in that: The electronic shifter uses a first signal interface to obtain a hard-wired signal representing a shift character background light on / off requirement and a shift character background light brightness level requirement, and uses a second signal interface to receive a CAN signal representing a shift character background light on / off requirement and a shift character background light brightness level requirement; the control method includes: Periodically obtain hard-wired signals and / or CAN signals representing the on / off requirements of the gear character background light; Based on the acquired hard-wire signal and / or CAN signal, the electronic shifter gear position character background light on / off control and the electronic shifter gear position character background light brightness level adjustment control are performed; The steps of controlling the on / off of the electronic shifter gear position character background light and adjusting the brightness level of the electronic shifter gear position character background light based on the acquired hard-wire signal and / or CAN signal include: If only a hard-wire signal or a CAN signal is obtained, the electronic shifter gear position character background light is directly controlled to be on or off based on the obtained hard-wire signal or the CAN signal, and the electronic shifter gear position character background light is controlled to be adjusted according to the gear position character background light brightness level requirement; If the hard-line signal and the CAN signal are obtained at the same time and the gear character background light on / off requirements represented by the hard-line signal and the CAN signal are inconsistent, the gear character background light on requirement and the gear character background light brightness level requirement corresponding to the gear character background light on requirement will be responded to first, the electronic gear shifter gear character background light will be controlled to light up, and the electronic gear shifter gear character background light will be controlled to be adjusted according to the gear character background light brightness level requirement; If the hard-wire signal and the CAN signal are obtained at the same time and the gear character background light on-off requirements represented by the hard-wire signal and the CAN signal are both on requirements, the electronic gear shifter gear character background light is controlled to light up in response to the CAN signal or the hard-wire signal in a pre-calibrated order, and the electronic gear shifter gear character background light is controlled to be adjusted according to the gear character background light brightness level requirement.
2. The electronic shifter gear position character background light display control method according to claim 1, characterized in that: The hard-wire signal is an ILL+ signal or a PWM signal. The steps of controlling the lighting of the electronic shifter gear character backlight and adjusting its brightness level in response to the CAN signal or the hard-wire signal in a pre-calibrated sequence include: If the hard-line signal is an ILL+ signal, and both the ILL signal and the CAN signal show that the gear character background light brightness level requirement is a non-dimming requirement, then in response to the ILL signal, the electronic gear shifter gear character background light is controlled to light up according to the preset brightness level; if the hard-line signal is an ILL+ signal, the ILL signal shows that the gear character background light brightness level requirement is a non-dimming requirement, and the CAN signal shows that the gear character background light brightness level requirement is a graded dimming requirement, then in response to the CAN signal, the electronic gear shifter gear character background light is controlled to light up according to the brightness level corresponding to the graded dimming requirement in the CAN signal; If the hard-wire signal is a PWM signal, the PWM signal indicates that the brightness level requirement of the gear character background light is a graded dimming requirement, and the CAN signal indicates that the brightness level requirement of the gear character background light is a non-dimming requirement, then in response to the PWM signal, the electronic shifter gear character background light is controlled to light up according to the brightness level corresponding to the graded dimming requirement in the PWM signal; If the hard-wire signal is a PWM signal, and both the PWM signal and the CAN signal show that the brightness level requirement of the gear character background light is a graded dimming requirement, then in response to the PWM signal, the electronic shifter gear character background light is controlled to light up according to the brightness level corresponding to the graded dimming requirement in the PWM signal.
3. An electronic shifter, characterized in that: include: Gear position character background lighting module; A first signal interface is used to collect hard-wired signals representing the on / off requirements of the background light of the gear character and the brightness level requirements of the background light of the gear character; The second signal interface is used to collect CAN signals representing the on / off requirements of the background light of the gear position characters and the brightness level requirements of the background light of the gear position characters; an MCU processing unit connected to the first signal interface and the second signal interface, and configured to: Periodically obtain hard-wired signals and / or CAN signals representing the on / off requirements of the gear character background light; Based on the acquired hard-wire signal and / or CAN signal, the gear character background light illumination module performs on-off control of the gear character background light and performs on-off control of the gear character background light brightness level adjustment control; Based on the acquired hard-wire signal and / or CAN signal, the gear character background light illumination module performs on-off control of the gear character background light and performs on-off control of the gear character background light brightness level adjustment control includes: If only a hard-line signal or a CAN signal is obtained, the gear character background light illumination module is controlled to light up or not light up the gear character background light directly based on the obtained hard-line signal or the CAN signal, and the gear character background light illumination module is controlled to adjust the brightness according to the gear character background light brightness level requirement; If the hard-line signal and the CAN signal are obtained at the same time and the gear character background light on-off requirements represented by the hard-line signal and the CAN signal are inconsistent, the gear character background light on requirement and the gear character background light brightness level requirement corresponding to the gear character background light on requirement are responded to first, the gear character background light illumination module is controlled to light the gear character background light, and the gear character background light illumination module is controlled to adjust the brightness according to the gear character background light brightness level requirement; If the hard-wire signal and the CAN signal are obtained at the same time and the gear character background light on-off requirements represented by the hard-wire signal and the CAN signal are both on requirements, the gear character background light illumination module is controlled to light up the gear character background light in response to the CAN signal or the hard-wire signal in a pre-calibrated order, and the gear character background light illumination module is controlled to adjust the brightness according to the gear character background light brightness level requirement.
4. The electronic shifter according to claim 3, characterized in that: The hard-wire signal is an ILL+ signal or a PWM signal, and the steps of responding to the CAN signal or the hard-wire signal in a pre-calibrated order to control the gear character background light illumination module to illuminate the gear character background light, and controlling the gear character background light illumination module to adjust the brightness according to the gear character background light brightness level requirement include: If the hard-line signal is ILL+, and both the ILL signal and the CAN signal indicate that the gear character background light brightness level requirement is non-dimming, then in response to the ILL signal, the gear character background light module is controlled to light up according to the preset brightness level; If the hard-line signal is ILL+ signal, the ILL signal indicates that the gear character background light brightness level requirement is non-dimming requirement, and the CAN signal indicates that the gear character background light brightness level requirement is graded dimming requirement, then in response to the CAN signal, the gear character background light illumination module is controlled to light up according to the brightness level corresponding to the graded dimming requirement in the CAN signal; If the hard-line signal is a PWM signal, the PWM signal indicates that the gear character background light brightness level requirement is a graded dimming requirement, and the CAN signal indicates that the gear character background light brightness level requirement is a non-dimming requirement, then in response to the PWM signal, the gear character background light illumination module is controlled to light up according to the brightness level corresponding to the graded dimming requirement in the PWM signal; If the hard-wired signal is a PWM signal, and both the PWM signal and the CAN signal show that the gear character background light brightness level requirement is a graded dimming requirement, then in response to the PWM signal, the gear character background light illumination module is controlled to light up according to the brightness level corresponding to the graded dimming requirement in the PWM signal.
5. A vehicle, characterized in that: The electronic shifter comprises the electronic shifter according to any one of claims 3 to 4.
Citation Information
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