CN116461421A - Electronic gear shifter gear character background light display control method, electronic gear shifter and vehicle - Google Patents

Electronic gear shifter gear character background light display control method, electronic gear shifter and vehicle Download PDF

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Publication number
CN116461421A
CN116461421A CN202310340467.XA CN202310340467A CN116461421A CN 116461421 A CN116461421 A CN 116461421A CN 202310340467 A CN202310340467 A CN 202310340467A CN 116461421 A CN116461421 A CN 116461421A
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CN
China
Prior art keywords
signal
gear
background light
brightness level
gear character
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CN202310340467.XA
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Chinese (zh)
Inventor
姚川
余超
伍习松
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Chongqing Changan Automobile Co Ltd
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Chongqing Changan Automobile Co Ltd
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Priority to CN202310340467.XA priority Critical patent/CN116461421A/en
Publication of CN116461421A publication Critical patent/CN116461421A/en
Pending legal-status Critical Current

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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
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/02—Selector apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/20—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for lighting specific fittings of passenger or driving compartments; mounted on specific fittings of passenger or driving compartments
    • B60Q3/283—Steering wheels; Gear levers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/80—Circuits; Control arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

The invention relates to a control method for displaying background light of gear characters of an electronic gear shifter, the electronic gear shifter and a vehicle, which CAN be compatible with 3 types of background light illumination input signals of ILL+hard wire signals, PWM hard wire signals and CAN signals at the same time, and realize the brightness adjusting function of the whole vehicle under different background light brightness requirements at the same time; meanwhile, the universality of the electronic gear shifter backlight illumination module and the corresponding whole vehicle wire harness interface is realized, the management cost and the development cost are reduced, and the development efficiency is improved. The method comprises the following steps: periodically acquiring a hard wire signal and/or a CAN signal for representing the background light opening and closing requirements of gear characters; and carrying out the opening and closing control of the background light of the gear character of the electronic gear and the adjustment control of the background light brightness level of the gear character of the electronic gear based on the obtained hard wire signal and/or CAN signal.

Description

Electronic gear shifter gear character background light display control method, electronic gear shifter and vehicle
Technical Field
The invention relates to a gear shifter for a vehicle, in particular to a gear character background light display control method of an electronic gear shifter, the electronic gear shifter and the vehicle.
Background
The gear character background illumination input signal of the traditional gear shifter is a hard-line signal, and the hard-line signal comprises two types: the first is a high-low level signal (ILL+), which can only realize the functions of background brightness and extinction and cannot regulate the background brightness in a grading way; the second is PWM signal, which can realize on and off and can regulate the brightness of the background light in a grading way.
With the development of electrification and intellectualization of automobiles, a wire control electronic gear shifter with a CAN communication function is more and more popular, and a corresponding CAN signal is added to the synchronization of the illumination and input of a gear character background light of the electronic gear shifter with the CAN communication function, so that the CAN signal CAN replace a PWM signal, the functions of lighting and extinguishing CAN be realized, and the background light brightness CAN be regulated in a grading manner, which is the type of the third gear character background illumination input signal.
The three types of input signals still exist simultaneously on different vehicle types and even different configurations of the same vehicle type, and meanwhile, the whole vehicle function has different requirements on whether the backlight brightness can be regulated in a grading way. For this situation, conventionally, different input signals can be in one-to-one correspondence with different electronic gear shifters and the scheme states of the whole wire harness, but this can lead to excessive states of parts of the electronic gear shifters and the whole wire harness, increase management cost and development cost, and reduce development efficiency.
Disclosure of Invention
The invention provides a control method for displaying background light of gear characters of an electronic gear shifter, the electronic gear shifter and a vehicle, which CAN be compatible with 3 types of background light illumination input signals of ILL+hard wire signals, PWM hard wire signals and CAN signals at the same time, and realize the brightness adjusting function of the whole vehicle under different background light brightness requirements at the same time; meanwhile, the universality of the electronic gear shifter backlight illumination module and the corresponding whole vehicle wire harness interface is realized, the management cost and the development cost are reduced, and the development efficiency is improved.
The technical scheme of the invention is as follows:
the invention provides a control method for displaying background light of a gear character of an electronic gear, which comprises the steps that a first signal interface is utilized by the electronic gear to obtain a hard wire signal representing the opening and closing requirements of the background light of the gear character and the background light brightness level requirements of the gear character, and a second signal interface is utilized to receive and obtain CAN signals representing the opening and closing requirements of the background light of the gear character and the background light brightness level requirements of the gear character; the control method comprises the following steps:
periodically acquiring a hard wire signal and/or a CAN signal for representing the background light opening and closing requirements of gear characters;
and carrying out the opening and closing control of the background light of the gear character of the electronic gear and the adjustment control of the background light brightness level of the gear character of the electronic gear based on the obtained hard wire signal and/or CAN signal.
Preferably, the step of performing the opening and closing control of the background light of the gear character of the electronic gear based on the obtained hard wire signal and/or CAN signal and performing the adjustment control of the brightness level of the background light of the gear character of the electronic gear comprises the following steps:
if only the hard wire signal or the CAN signal is obtained, the electronic gear character background light is controlled to be lightened or not lightened directly based on the obtained hard wire signal or the CAN signal, and the electronic gear character background light is controlled to be adjusted according to the background light brightness level requirement of the gear character;
if the hard line signal and the CAN signal are obtained at the same time and the opening and closing requirements of the gear character background light represented by the hard line signal and the CAN signal are inconsistent, preferentially responding to the opening requirements of the gear character background light and the brightness level requirements of the gear character background light corresponding to the opening requirements of the gear character background light, controlling the electronic gear character background light to be lightened, and controlling the gear character background light of the electronic gear to be adjusted according to the brightness level requirements of the gear character background light;
if the hard wire signal and the CAN signal are obtained at the same time, and the opening and closing requirements of the gear character background light represented by the hard wire signal and the CAN signal are opening requirements, the gear character background light of the electronic gear shifter is controlled to be lightened according to the pre-calibration sequence in response to the CAN signal or the hard wire signal, and the gear character background light of the electronic gear shifter is controlled to be adjusted according to the brightness level requirements of the gear character background light.
Preferably, the hard-wired signal is an ill+ signal or a PWM signal, and the step of controlling the background light of the gear character of the electronic gear shifter and the brightness level adjustment thereof in response to the CAN signal or the hard-wired signal according to a pre-calibration sequence includes:
if the hard line signal is ILL+ signal and the ILL signal and the CAN signal both show that the brightness level requirement of the gear character background light is a non-dimming requirement, responding to the ILL signal, and controlling the gear character background light of the electronic gear shifter to be lightened according to the preset brightness level; if the hard line signal is ILL+ signal, the light brightness level requirement of the ILL signal display gear character background is a non-dimming requirement and the light brightness level requirement of the CAN signal display gear character background is a grading dimming requirement, responding to the CAN signal, and controlling the electronic gear character background to be lightened according to the brightness level corresponding to the grading dimming requirement in the CAN signal;
if the hard wire signal is a PWM signal, the light brightness level requirement of the gear character displayed by the PWM signal is a step dimming requirement, and the light brightness level requirement of the gear character displayed by the CAN signal is a non-dimming requirement, the PWM signal is responded, and the gear character background light of the electronic gear shifter is controlled to be lightened according to the brightness level corresponding to the step dimming requirement in the PWM signal;
if the hard wire signal is a PWM signal and the brightness level requirements of the gear character background light are the step dimming requirements, the PWM signal is responded, and the electronic gear character background light is controlled to be lightened according to the brightness level corresponding to the step dimming requirements in the PWM signal.
The invention also provides an electronic shifter, comprising:
a gear character background light illumination module;
the first signal interface is used for collecting hard line signals representing the background light opening and closing requirements of the gear characters and the background light brightness level requirements of the gear characters;
the second signal interface is used for collecting CAN signals representing the opening and closing requirements of background light of the gear characters and the requirements of the brightness level of the background light of the gear characters;
an MCU processing unit connected to the first signal interface and the second signal interface, and serving as:
periodically acquiring a hard wire signal and/or a CAN signal for representing the background light opening and closing requirements of gear characters;
and based on the obtained hard wire signal and/or CAN signal, performing gear character background light switching control on the gear character background light lighting module and performing gear character background light brightness level adjustment control.
Preferably, the step of performing the gear character backlight on/off control and the gear character backlight brightness level adjustment control on the gear character backlight illumination module based on the obtained hard wire signal and/or the obtained CAN signal includes:
if only the hard wire signal or the CAN signal is obtained, directly controlling a gear character background light illumination module to light or not light the gear character background light based on the obtained hard wire signal or the CAN signal, and controlling the gear character background light illumination module to adjust the brightness according to the brightness level requirement of the gear character background light;
if the hard line signal and the CAN signal are obtained at the same time and the opening and closing requirements of the gear character background light represented by the hard line signal and the CAN signal are inconsistent, preferentially responding to the opening requirements of the gear character background light and the brightness level requirements of the gear character background light corresponding to the opening requirements of the gear character background light, controlling 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 brightness level requirements of the gear character background light;
if the hard-wired signal and the CAN signal are obtained at the same time, and the opening and closing requirements of the gear character background light represented by the hard-wired signal and the CAN signal are opening requirements, the gear character background light illumination module is controlled to carry out the gear character background light illumination according to the pre-calibration sequence response to the CAN signal or the hard-wired signal, and the gear character background light illumination module is controlled to carry out brightness adjustment according to the brightness level requirements of the gear character background light.
Preferably, the hard wire signal is ill+ signal or PWM signal, and the step of responding to the CAN signal or the hard wire signal according to a pre-calibration sequence to control the gear character backlight illumination module to perform the gear character backlight illumination, and control the gear character backlight illumination module to perform the brightness adjustment according to the brightness level requirement of the gear character background comprises:
if the hard line signal is ILL+ signal and the ILL signal and the CAN signal both display that the brightness level requirement of the background light of the gear character is a non-dimming requirement, responding to the ILL signal, and controlling the background light illumination module of the gear character to illuminate according to the preset brightness level;
if the hard line signal is ILL+ signal, the ILL signal shows that the background light brightness level requirement of the gear character is a non-dimming requirement and the CAN signal shows that the background light brightness level requirement of the gear character is a step dimming requirement, responding to the CAN signal, and controlling the gear character background light illumination module to illuminate according to the brightness level corresponding to the step dimming requirement in the CAN signal;
if the hard wire signal is a PWM signal, the light brightness level requirement of the gear character displayed by the PWM signal is a step dimming requirement, and the light brightness level requirement of the gear character displayed by the CAN signal is a non-dimming requirement, responding to the PWM signal, and controlling the gear character background lighting module to light according to the brightness level corresponding to the step dimming requirement in the PWM signal;
if the hard wire signal is a PWM signal and the CAN signal both display that the brightness level requirement of the gear character background light is a step dimming requirement, the PWM signal is responded, and the gear character background light illumination module is controlled to be lightened according to the brightness level corresponding to the step dimming requirement in the PWM signal.
The invention further provides a vehicle comprising the electronic gear shifter.
The beneficial effects of the invention are as follows:
the scheme CAN be compatible with ILL+hard wire signals, PWM hard wire signals and CAN signals and CAN signal type 3 background light illumination input signals, and CAN realize the brightness adjusting function of the whole vehicle under different background light brightness requirements; meanwhile, the universality of the electronic gear shifter backlight illumination module and the corresponding whole vehicle wire harness interface is realized, the management cost and the development cost are reduced, and the development efficiency is improved.
Drawings
Fig. 1 is a schematic block diagram of a system architecture in the present embodiment;
fig. 2 is a control logic block diagram in the present embodiment;
fig. 3 is a flowchart of the method in this embodiment.
Detailed Description
Referring to fig. 2 and 3, an embodiment of the present invention provides a method for controlling backlight display of a gear character of an electronic gear, where the electronic gear uses a first signal interface to obtain a hard wire signal for representing a requirement for opening and closing the backlight of the gear character and a requirement for representing a brightness level of the backlight of the gear character, and uses a second signal interface to receive and obtain a CAN signal for representing the requirement for opening and closing the backlight of the gear character and the requirement for representing the brightness level of the backlight of the gear character; the control method comprises the following steps:
s101, periodically acquiring a hard wire signal and/or a CAN signal for representing the background light opening and closing requirements of gear characters;
s102, based on the obtained hard wire signal and/or CAN signal, performing electronic gear character background light opening and closing control and performing electronic gear character background light brightness level adjustment control.
Specifically, based on the obtained hard wire signal and/or CAN signal, the step S102 of performing the opening and closing control of the electronic shifter shift character backlight and the adjustment control of the electronic shifter shift character backlight brightness level includes:
if only the hard wire signal or the CAN signal is obtained, the electronic gear character background light is controlled to be lightened or not lightened directly based on the obtained hard wire signal or the CAN signal, and the electronic gear character background light is controlled to be adjusted according to the background light brightness level requirement of the gear character;
if the hard line signal and the CAN signal are obtained at the same time and the opening and closing requirements of the gear character background light represented by the hard line signal and the CAN signal are inconsistent, preferentially responding to the opening requirements of the gear character background light and the brightness level requirements of the gear character background light corresponding to the opening requirements of the gear character background light, controlling the electronic gear character background light to be lightened, and controlling the gear character background light of the electronic gear to be adjusted according to the brightness level requirements of the gear character background light;
if the hard wire signal and the CAN signal are obtained at the same time, and the opening and closing requirements of the gear character background light represented by the hard wire signal and the CAN signal are opening requirements, the gear character background light of the electronic gear shifter is controlled to be lightened according to the pre-calibration sequence in response to the CAN signal or the hard wire signal, and the gear character background light of the electronic gear shifter is controlled to be adjusted according to the brightness level requirements of the gear character background light.
The hard-wire signal is an ill+ signal or a PWM signal.
The step of controlling the background light of the gear character of the electronic gear shifter to be lightened and the brightness level of the background light to be adjusted according to the pre-calibration sequence and responding to the CAN signal or the hard wire signal comprises the following steps of:
if the hard line signal is ILL+ signal and the ILL signal and the CAN signal both show that the brightness level requirement of the gear character background light is a non-dimming requirement, responding to the ILL signal, and controlling the gear character background light of the electronic gear shifter to be lightened according to the preset brightness level; if the hard line signal is ILL+ signal, the light brightness level requirement of the ILL signal display gear character background is a non-dimming requirement and the light brightness level requirement of the CAN signal display gear character background is a grading dimming requirement, responding to the CAN signal, and controlling the electronic gear character background to be lightened according to the brightness level corresponding to the grading dimming requirement in the CAN signal;
if the hard wire signal is a PWM signal, the light brightness level requirement of the gear character displayed by the PWM signal is a step dimming requirement, and the light brightness level requirement of the gear character displayed by the CAN signal is a non-dimming requirement, the PWM signal is responded, and the gear character background light of the electronic gear shifter is controlled to be lightened according to the brightness level corresponding to the step dimming requirement in the PWM signal;
if the hard wire signal is a PWM signal and the brightness level requirements of the gear character background light are the step dimming requirements, the PWM signal is responded, and the electronic gear character background light is controlled to be lightened according to the brightness level corresponding to the step dimming requirements in the PWM signal.
With reference to fig. 1 and 2, in this embodiment, according to different input signal types of gear character backlight and corresponding supported functions and function definitions, the application requirements of the whole vehicle are divided into 4 types, as follows:
for the above 4 cases, the specific implementation compatible scheme is as follows:
referring to fig. 1:
and (3) inputting a gear character background lighting and dimming hard line signal: on the whole vehicle of a vehicle type, two signal configurations of ILL+hard line and PWM hard line only have an input state, namely the above demand situations (1) and (2) can not exist at the same time, the hard line input interfaces of the ILL+hard line and the PWM hard line are defined as the same pin in the hard line interface of the electronic gear shifter based on the input states, and then the input states are transmitted to the MCU processing unit of the electronic gear shifter through the identical acquisition circuit (the signal acquisition module which corresponds to the first signal interface) in the electronic gear shifter, and the MCU processing unit is used for identifying and distinguishing according to different characteristics of signals of the ILL+hard line and the PWM hard line.
And (3) inputting a gear character background light illumination and dimming CAN signal: the whole vehicle is input to a CAN communication module (corresponding to a second signal interface) of the electronic gear shifter through a CAN bus, one of vehicle type configuration is only required according to the application requirements of the whole vehicle, and the off-line configuration of the electronic gear shifter or the off-line configuration of the whole vehicle are used for distinguishing and selecting.
Of course, in this embodiment, the electronic gear shifter also needs to be grounded by using the whole vehicle, and the power cord of the whole vehicle needs to be connected with the power module of the electronic gear shifter to realize power supply.
The MCU processing unit of the electronic gear shifter combines the 2 requirement situations ((1) or (2)) of the hard-wire signal input and the 2 requirement situations ((3) or (4)) of the CAN signal input, namely 4 combined states in total, and controls the gear character background light illumination module in the figure 1 according to the control logic as shown in figure 2, thereby being compatible with 3 types of input signals and meeting the illumination application requirements of the whole vehicle on different background lights:
1. when the hard-wire signal is not input, defining that the hard-wire signal does not lighten a background light input state;
2. the MCU processing unit periodically detects and judges the input signals, and further carries out logic judgment and control when the lighting requirement exists;
3. when the MCU processing unit only receives the hard-wire lighting signal, the MCU processing unit firstly distinguishes whether the signal is a PWM signal or an ILL+ signal according to the signal characteristics, and then carries out background light control according to the corresponding signal requirements;
4. when the MCU processing unit receives the input of the CAN signal, the processing logic is as follows:
(1) When the input signals are inconsistent in the lighting and extinguishing requirements, executing according to the signals with lighting requirements;
(2) When the input signals are consistent in lighting and extinguishing requirements, i.e. all are required to be lighted, the control logic is as follows for different requirements of the backlight brightness levels under the total of 4 possible combination conditions: combination 1: simultaneously receiving the signal input of (1) and (3), and executing according to the requirement of (1);
combination 2: meanwhile, the signal input of the step (1) and the step (4) is received, and the step (4) is executed according to the requirement (the signal responding to the brightness adjustment requirement is preferentially executed so as to realize the background light adjustment function, and further the use experience of a user is improved);
combination 3: simultaneously receiving the signal input of the step (2) and the step (3), and responding to the backlight brightness requirement of the step (2) (preferentially responding to the signal of the brightness adjustment requirement so as to realize the background light adjustment function and further improve the use experience of a user);
combination 4: and (3) receiving the signal input of the (2) and the signal input of the (4), and responding to the backlight brightness requirement of the (2) (at the moment, preferentially responding to the hard wire PWM signal, and keeping consistent with the brightness of the backlight of other switches taking the hard wire PWM signal as the input of the whole vehicle).
The scheme of the embodiment CAN be compatible with 3 types of backlight illumination input signals of ILL+hard wire signals, PWM hard wire signals and CAN signals, and simultaneously realize the brightness adjusting function of the whole vehicle under different background brightness requirements; meanwhile, the universality of the electronic gear shifter backlight illumination module and the corresponding whole vehicle wire harness interface is realized, the management cost and the development cost are reduced, and the development efficiency is improved.

Claims (7)

1. The method is characterized in that the electronic gear shifter utilizes a first signal interface to acquire a hard wire signal representing the opening and closing requirements of the background light of the gear character and the background light brightness level requirements of the gear character, and utilizes a second signal interface to receive a CAN signal representing the opening and closing requirements of the background light of the gear character and the background light brightness level requirements of the gear character; the control method comprises the following steps:
periodically acquiring a hard wire signal and/or a CAN signal for representing the background light opening and closing requirements of gear characters;
and carrying out the opening and closing control of the background light of the gear character of the electronic gear and the adjustment control of the background light brightness level of the gear character of the electronic gear based on the obtained hard wire signal and/or CAN signal.
2. The method according to claim 1, wherein the step of performing the on-off control of the electronic shifter shift character backlight and the step of performing the electronic shifter shift character backlight brightness level adjustment control based on the obtained hard line signal and/or CAN signal comprises:
if only the hard wire signal or the CAN signal is obtained, the electronic gear character background light is controlled to be lightened or not lightened directly based on the obtained hard wire signal or the CAN signal, and the electronic gear character background light is controlled to be adjusted according to the background light brightness level requirement of the gear character;
if the hard line signal and the CAN signal are obtained at the same time and the opening and closing requirements of the gear character background light represented by the hard line signal and the CAN signal are inconsistent, preferentially responding to the opening requirements of the gear character background light and the brightness level requirements of the gear character background light corresponding to the opening requirements of the gear character background light, controlling the electronic gear character background light to be lightened, and controlling the gear character background light of the electronic gear to be adjusted according to the brightness level requirements of the gear character background light;
if the hard wire signal and the CAN signal are obtained at the same time, and the opening and closing requirements of the gear character background light represented by the hard wire signal and the CAN signal are opening requirements, the gear character background light of the electronic gear shifter is controlled to be lightened according to the pre-calibration sequence in response to the CAN signal or the hard wire signal, and the gear character background light of the electronic gear shifter is controlled to be adjusted according to the brightness level requirements of the gear character background light.
3. The method for controlling the backlight display of the gear character of the electronic gear according to claim 2, wherein the hard-wired signal is ill+ signal or PWM signal, and the step of controlling the backlight illumination of the gear character of the electronic gear and the brightness level adjustment thereof in response to the CAN signal or the hard-wired signal according to a pre-calibration sequence comprises:
if the hard line signal is ILL+ signal and the ILL signal and the CAN signal both show that the brightness level requirement of the gear character background light is a non-dimming requirement, responding to the ILL signal, and controlling the gear character background light of the electronic gear shifter to be lightened according to the preset brightness level; if the hard line signal is ILL+ signal, the light brightness level requirement of the ILL signal display gear character background is a non-dimming requirement and the light brightness level requirement of the CAN signal display gear character background is a grading dimming requirement, responding to the CAN signal, and controlling the electronic gear character background to be lightened according to the brightness level corresponding to the grading dimming requirement in the CAN signal;
if the hard wire signal is a PWM signal, the light brightness level requirement of the gear character displayed by the PWM signal is a step dimming requirement, and the light brightness level requirement of the gear character displayed by the CAN signal is a non-dimming requirement, the PWM signal is responded, and the gear character background light of the electronic gear shifter is controlled to be lightened according to the brightness level corresponding to the step dimming requirement in the PWM signal;
if the hard wire signal is a PWM signal and the brightness level requirements of the gear character background light are the step dimming requirements, the PWM signal is responded, and the electronic gear character background light is controlled to be lightened according to the brightness level corresponding to the step dimming requirements in the PWM signal.
4. An electronic shifter, comprising:
a gear character background light illumination module;
the first signal interface is used for collecting hard line signals representing the background light opening and closing requirements of the gear characters and the background light brightness level requirements of the gear characters;
the second signal interface is used for collecting CAN signals representing the opening and closing requirements of background light of the gear characters and the requirements of the brightness level of the background light of the gear characters;
an MCU processing unit connected to the first signal interface and the second signal interface, and serving as:
periodically acquiring a hard wire signal and/or a CAN signal for representing the background light opening and closing requirements of gear characters;
and based on the obtained hard wire signal and/or CAN signal, performing gear character background light switching control on the gear character background light lighting module and performing gear character background light brightness level adjustment control.
5. The electronic shifter of claim 4, wherein the step of performing shift character backlight on-off control and shift character backlight level adjustment control on the shift character backlight illumination module based on the obtained hard wire signal and/or CAN signal comprises:
if only the hard wire signal or the CAN signal is obtained, directly controlling a gear character background light illumination module to light or not light the gear character background light based on the obtained hard wire signal or the CAN signal, and controlling the gear character background light illumination module to adjust the brightness according to the brightness level requirement of the gear character background light;
if the hard line signal and the CAN signal are obtained at the same time and the opening and closing requirements of the gear character background light represented by the hard line signal and the CAN signal are inconsistent, preferentially responding to the opening requirements of the gear character background light and the brightness level requirements of the gear character background light corresponding to the opening requirements of the gear character background light, controlling 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 brightness level requirements of the gear character background light;
if the hard-wired signal and the CAN signal are obtained at the same time, and the opening and closing requirements of the gear character background light represented by the hard-wired signal and the CAN signal are opening requirements, the gear character background light illumination module is controlled to carry out the gear character background light illumination according to the pre-calibration sequence response to the CAN signal or the hard-wired signal, and the gear character background light illumination module is controlled to carry out brightness adjustment according to the brightness level requirements of the gear character background light.
6. The electronic shifter of claim 5, wherein the hard-wired signal is ill+ or PWM, and wherein the step of controlling the gear character backlight illumination module to illuminate the gear character backlight according to the pre-calibrated sequence in response to the CAN signal or the hard-wired signal, and controlling the gear character backlight illumination module to adjust the brightness according to the gear character backlight brightness level demand comprises:
if the hard line signal is ILL+ signal and the ILL signal and the CAN signal both display that the brightness level requirement of the background light of the gear character is a non-dimming requirement, responding to the ILL signal, and controlling the background light illumination module of the gear character to illuminate according to the preset brightness level;
if the hard line signal is ILL+ signal, the ILL signal shows that the background light brightness level requirement of the gear character is a non-dimming requirement and the CAN signal shows that the background light brightness level requirement of the gear character is a step dimming requirement, responding to the CAN signal, and controlling the gear character background light illumination module to illuminate according to the brightness level corresponding to the step dimming requirement in the CAN signal;
if the hard wire signal is a PWM signal, the light brightness level requirement of the gear character displayed by the PWM signal is a step dimming requirement, and the light brightness level requirement of the gear character displayed by the CAN signal is a non-dimming requirement, responding to the PWM signal, and controlling the gear character background lighting module to light according to the brightness level corresponding to the step dimming requirement in the PWM signal;
if the hard wire signal is a PWM signal and the CAN signal both display that the brightness level requirement of the gear character background light is a step dimming requirement, the PWM signal is responded, and the gear character background light illumination module is controlled to be lightened according to the brightness level corresponding to the step dimming requirement in the PWM signal.
7. A vehicle comprising the electronic shifter of any one of claims 4 to 6.
CN202310340467.XA 2023-03-31 2023-03-31 Electronic gear shifter gear character background light display control method, electronic gear shifter and vehicle Pending CN116461421A (en)

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