CN105035045A - Vehicle brake control device - Google Patents
Vehicle brake control device Download PDFInfo
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- CN105035045A CN105035045A CN201510358878.7A CN201510358878A CN105035045A CN 105035045 A CN105035045 A CN 105035045A CN 201510358878 A CN201510358878 A CN 201510358878A CN 105035045 A CN105035045 A CN 105035045A
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- signal
- brake control
- control signal
- brake
- control unit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/04—Brake-action initiating means for personal initiation foot actuated
- B60T7/042—Brake-action initiating means for personal initiation foot actuated by electrical means, e.g. using travel or force sensors
Abstract
The invention discloses a vehicle brake control device and belongs to the field of automotive electronics. The device comprises a brake control circuit, an electronic brake pedal, a main control unit and an ESC (Electronic Stability Control) unit, wherein the input end of the brake control circuit is connected with the electronic brake pedal and the main control unit respectively; the output end of the brake control circuit is connected with the ESC unit, and is used for selecting a signal, serving as an output control signal, from a displacement analog signal generated by the electronic brake pedal and a brake control signal generated by the main control unit, and sending the output control signal to the ESC unit; the ESC unit is used for performing brake control on a vehicle according to the output control signal. The vehicle brake control device disclosed by the invention has the advantages that a mechanical operating device does not need to be mounted, the switching operation of automatic driving and manual driving is simple and convenient, and the cost of the vehicle brake control device is lower.
Description
Technical field
The present invention relates to vehicle electric field, particularly a kind of vehicle brake control apparatus.
Background technology
Along with the fast development of auto-industry and improving constantly of people's living standard, automobile has entered the family of ordinary populace, but the traffic jam thereupon occurred, traffic accident is but day by day serious, in order to address these problems, the intelligent vehicle towards intelligent transportation arises at the historic moment, and intelligent vehicle can realize the function of automatic Pilot according to road environment, one of function the most basic when wherein control for brake is intelligent vehicle automatic Pilot, control for brake can make the automobile in traveling stop or lowering speed.
In correlation technique, during intelligent vehicle automatic Pilot, the implementation of control for brake comprises following several: mode one: on brake pedal, install mechanial control device additional carry out control for brake to this brake pedal; Mode two: control unit is (English: ControllerAreaNetwork by controller local area network; Be called for short: CAN) control command is sent to electronic stabilizing control system (English: ElectronicStabilityControl; Be called for short: ESC), implement control for brake by ESC.
Realizing in process of the present invention, contriver finds that prior art at least exists following problem:
First kind of way applied mechanical device takies cab space, easily affects the switching of automatic Pilot and manual drive, controls complicated, poor practicability.The second way then needs ESC producer to coordinate exploitation, and open CAN communication agreement, cost is higher.
Summary of the invention
In order to solve the problem of prior art, embodiments provide a kind of vehicle brake control apparatus.Described device comprises:
Brake control circuit, electronic brake pedal, main control unit and electronic stabilizing control system ESC control unit;
Described electronic brake pedal, for receiving the stampede operation of chaufeur, generates shift simulation signal according to described stampede operation;
Described main control unit is used for generating brake control signal according to the road environment of vehicle;
The input end of described brake control circuit is connected with described electronic brake pedal and described main control unit respectively, the mouth of described brake control circuit is connected with described ESC control unit, for selecting the signal as exporting control signal in the described shift simulation signal of described electronic brake pedal and the described brake control signal of described main control unit, and send described output control signal to described ESC control unit;
Described ESC control unit is used for carrying out control for brake according to described output control signal to vehicle.
Optionally, described device also comprises:
Switch control module, described switch control module is connected with described brake control circuit, and described brake control circuit is used for the signal selected in described shift simulation signal and described brake control signal under the control of described switch control module as described output control signal.
Optionally, described brake control circuit comprises:
Controller local area network CAN circuit, low-pass filter, micro-control unit MCU, digital analog converter DAC, logic gates and instruction change-over switch;
Described switch control module comprises: mode selector switch and power supply, and described mode selector switch is for receiving the blocked operation of chaufeur, and described switch control module is used for according to described blocked operation, generates second electrical level;
The input end of described CAN circuit is connected with described main control unit, and the mouth of described CAN circuit is connected with the first end of described MCU, and described CAN circuit is used for described brake control signal to be sent to described MCU;
The input end of described low-pass filter is connected with described electronic brake pedal, the mouth of described low-pass filter is connected with second end of described MCU and the first end of described instruction change-over switch respectively, described low-pass filter is used for carrying out filtering to described shift simulation signal, and sends filtered described shift simulation signal to described MCU and described instruction change-over switch;
3rd end of described MCU is connected with the first input end of described logic gates, second input end of described logic gates is connected with described switch control module, the mouth of described logic gates is connected with the second end of described instruction change-over switch, described MCU is used for generating the first level according to described shift simulation signal, and sends described first level to described logic gates; Described logic gates is used for generating switching command according to described first level and described second electrical level, and sends described switching command to described instruction change-over switch;
4th end of described MCU is connected with the input end of described DAC, the mouth of described DAC and the three-terminal link of described instruction change-over switch, described MCU is also for sending described brake control signal to described DAC, described DAC is used for carrying out digital-to-analogue conversion to described brake control signal, and the described brake control signal after digital-to-analogue conversion is sent to described instruction change-over switch;
4th end of described instruction change-over switch is connected with described ESC control unit, described instruction change-over switch is used for according to described switching command, in described shift simulation signal and described brake control signal, select the signal as described output control signal, and send described output control signal to described ESC control unit.
Optionally, described brake control circuit also comprises: potential device,
The mouth of described DAC is connected with the first end of described instruction change-over switch and described potential device respectively, and the second end of described potential device is connected with described instruction change-over switch, the 3rd end ground connection of described potential device.
Optionally, the 4th end of described MCU is connected by serial peripheral SPI interface with the input end of described DAC.
Optionally, described logic gates is AND circuit;
If described first level is high level, when described second electrical level is high level, then the switching command that described logic gates exports is high level, and the output control signal that described instruction change-over switch exports is described brake control signal;
If arbitrary level is low level in described first level and described second electrical level, then the switching command that described logic gates exports is low level, and the output control signal that described instruction change-over switch exports is described shift simulation signal.
Optionally, described shift simulation signal is two-way shift simulation signal.
Optionally, the power supply of described power supply to be voltage be 5V.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is:
In sum, a kind of vehicle brake control apparatus that the embodiment of the present invention provides, this vehicle brake control apparatus is except comprising electronic brake pedal, main control unit and ESC control unit, also comprise brake control circuit, the input end of this brake control circuit is connected with electronic brake pedal and main control unit respectively, the mouth of brake control circuit is connected with ESC control unit, in the brake control signal of the shift simulation signal that this brake control circuit can generate at electronic brake pedal and main control unit generation, select a signal as output control signal, and send this output control signal to ESC control unit, ESC control unit carries out control for brake according to this output control signal to vehicle, the vehicle brake control apparatus that the embodiment of the present invention provides, do not need the automatic Pilot that mechanial control device can realize vehicle is installed, the blocked operation of Vehicular automatic driving and manual drive is easy, and the cost of this vehicle brake control apparatus is lower.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of vehicle brake control apparatus that the embodiment of the present invention provides;
Fig. 2 is the structural representation of the another kind of vehicle brake control apparatus that the embodiment of the present invention provides;
Fig. 3 is the structural representation of another vehicle brake control apparatus that the embodiment of the present invention provides;
Fig. 4 is the structural representation of a kind of potential device that the embodiment of the present invention provides.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiments provide a kind of vehicle brake control apparatus.As shown in Figure 1, this device comprises:
Brake control circuit 01, main control unit 02, electronic brake pedal 03 and electronic stabilizing control system are (English: ElectronicStabilityProgram; Be called for short: ESC) control unit 04;
Electronic brake pedal 03 for receiving the stampede operation of chaufeur, and generates shift simulation signal s according to this stampede operation.
Example, this shift simulation signal s comprises two-way shift simulation signal, displacement pickup is provided with in electronic brake pedal 03, this displacement pickup can monitor the position of electronic brake pedal 03, when the position that displacement pickup monitors electronic brake pedal 03 changes, displacement pickup in electronic brake pedal 03 can generate shift simulation signal s, and this shift simulation signal s is sent to brake control circuit 01.
Main control unit 02 generates brake control signal x for the road environment according to vehicle.
In embodiments of the present invention, multiple sensors such as video frequency pick-up head, radar sensor and airborne laser range finder can also be provided with in vehicle, the road environment of the vehicle got can be sent to main control unit 02 by the plurality of sensor, main control unit 02 can generate brake control signal x according to the road environment of vehicle, and this brake control signal x is sent to brake control circuit 01.
The input end of brake control circuit 01 is connected with electronic brake pedal 03 and main control unit 02 respectively, the mouth of brake control circuit 01 is connected with ESC control unit 04, for selecting the signal as exporting control signal y in the shift simulation signal s of electronic brake pedal 03 and the brake control signal x of main control unit 02, and send this output control signal y to ESC control unit 04.
Example, after brake control circuit 01 receives the shift simulation signal s of electronic brake pedal 03 transmission and the brake control signal x of main control unit 02 transmission, need in shifting formwork analog signal s in place and brake control signal x, to select a signal as output control signal y, if select shift simulation signal s as output control signal y, then brake control circuit 01 is this shift simulation signal s to the output control signal y that ESC control unit 04 sends, and now vehicle is in manual drive pattern; If select brake control signal x as output control signal y, then the output control signal y that brake control circuit 01 sends to ESC control unit 04 is this brake control signal x, and now vehicle is in automatic driving mode.
ESC control unit 04 is for carrying out control for brake according to this output control signal y to vehicle.
Example, can comprise electronic control unit and actr in ESC control unit 04, the electronic control unit in ESC control unit 04 according to the output control signal y received, can carry out control for brake by actr to vehicle.Wherein actr comprises Conventional braking systems (as vacuum booster, pipeline and drg) and hydraulic pressure regulator etc.ESC control unit carries out the detailed process of control for brake to vehicle can with reference to correlation technique, and the embodiment of the present invention does not repeat.
In sum, a kind of vehicle brake control apparatus that the embodiment of the present invention provides, this vehicle brake control apparatus is except comprising electronic brake pedal, main control unit and ESC control unit, also comprise brake control circuit, the input end of this brake control circuit is connected with electronic brake pedal and main control unit respectively, the mouth of brake control circuit is connected with ESC control unit, in the brake control signal of the shift simulation signal that this brake control circuit can generate at electronic brake pedal and main control unit generation, select a signal as output control signal, and send this output control signal to ESC control unit, ESC control unit carries out control for brake according to this output control signal to vehicle, the vehicle brake control apparatus that the embodiment of the present invention provides, do not need the automatic Pilot that mechanial control device can realize vehicle is installed, the blocked operation of Vehicular automatic driving and manual drive is easy, and the cost of this vehicle brake control apparatus is lower.
Optionally, as shown in Figure 2, this vehicle brake control apparatus also comprises:
Switch control module 05, switch control module 05 is connected with brake control circuit 01, and brake control circuit 01 is for selecting the signal as exporting control signal y in shifting formwork analog signal s and brake control signal x in place under the control of switch control module 05.
Optionally, as shown in Figure 3, brake control circuit 01 comprises:
Controller local area network is (English: ControllerAreaNetwork; Be called for short: CAN) circuit 11, low-pass filter 12, micro-control unit (English: MicrocontrollerUnit; MCU) 13 be called for short:, digital analog converter is (English: Digitaltoanalogconverter; DAC) 14, logic gates 15 and instruction change-over switch 16 be called for short:.
Switch control module 05 comprises: mode selector switch S and power supply V, mode selector switch S are for receiving the blocked operation of chaufeur, and switch control module 05, for according to this blocked operation, generates second electrical level.
Example, the power supply of this power supply V to be voltage be 5V.Mode selector switch S can carry out switching over according to the blocked operation of chaufeur, if mode selector switch S is in conducting state (also claiming closure state), then the second electrical level that switch control module 05 generates is low level; If mode selector switch S is in off-state, then the second electrical level that switch control module 05 generates is high level.
The input end of CAN circuit 11 is connected with main control unit 02, and the mouth of CAN circuit 11 is connected with the first end a of MCU13, and CAN circuit is used for brake control signal x to be sent to MCU13.
The input end of low-pass filter 12 is connected with electronic brake pedal 03, the mouth of low-pass filter 12 is connected with the second end b of MCU13 and the first end e of instruction change-over switch 16 respectively, low-pass filter 12 carries out filtering for contraposition shifting formwork analog signal s, and sends filtered shift simulation signal s to MCU13 and instruction change-over switch 16.
Example, this low-pass filter 12 can be that resistance capacitance is (English: Resistance-Capacitance; Be called for short: RC) low-pass filter, RC low-pass filter 12 carries out filtering to this shift simulation signal s, and high-frequency signal can be avoided the interference of this shift simulation signal s.
The 3rd end c of MCU13 is connected with the first input end A of logic gates 15, second input end B of logic gates 15 is connected with switch control module 05, second end f of the mouth Y and instruction change-over switch 16 of logic gates 15 connects, MCU13 is used for generating the first level according to shift simulation signal s, and sends this first level to logic gates 15; Logic gates 15 for generating switching command according to this first level and second electrical level, and sends this switching command to instruction change-over switch 16.
In embodiments of the present invention, analog-digital converter is provided with in MCU13 (English: AnalogtoDigitalConverter; Be called for short: ADC), after MCU13 receives this shift simulation signal s, can convert this shift simulation signal s to multiple time point magnitude of voltage corresponding respectively by this ADC, afterwards, the plurality of magnitude of voltage can be carried out matching and obtain a magnitude of voltage matched curve by MCU13.Threshold voltage and threshold slope is also provided with in MCU13, when the minimum amount of voltage that of this matched curve is greater than this threshold voltage, and the slope of this matched curve is when being greater than this threshold slope, then MCU13 confirms that electronic brake pedal 03 have received the stampede operation of chaufeur, and the first level that now MCU13 generates is low level; When the minimum amount of voltage that of this matched curve is not more than this threshold voltage, or when the slope of this matched curve is not more than this threshold slope, MCU13 confirms that electronic brake pedal 03 does not receive the stampede operation of chaufeur, and the first level that now MCU13 generates is high level.
The input end of the 4th end d and the DAC14 of MCU13 connects, 3rd end g of the mouth and instruction change-over switch 16 of DAC14 connects, MCU13 is also for sending brake control signal x to DAC14, DAC14 is used for carrying out digital-to-analogue conversion to this brake control signal x, and the brake control signal x after digital-to-analogue conversion is sent to instruction change-over switch 16.
Example, the input end of the 4th end d and the DAC14 of MCU13 is (English: SerialPeripheralInterface by serial peripheral; Be called for short: SPI) interface connects, this brake control signal x can be sent to DAC14 by SPI interface after receiving the brake control signal x of CAN circuit transmission by MCU13.The brake control signal x generated due to main control unit 02 is digital signal, and ESC control unit 04 can only receive analog signal, therefore need to convert this brake control signal x to analog signal by digital signal by DAC14, then the brake control signal x this being converted to analog signal is sent to instruction change-over switch 16.
4th end h of instruction change-over switch 16 is connected with ESC control unit 04, instruction change-over switch 16 is for according to switching command, select the signal as exporting control signal y output in shifting formwork analog signal s in place and brake control signal x, and send this output control signal y to ESC control unit.
Example, when this switching command is low level, the output control signal y that instruction change-over switch 16 exports is shift simulation signal s, then now vehicle is in manual drive pattern; When this switching command is high level, the output control signal y that instruction change-over switch 16 exports is brake control signal x, then now vehicle is in automatic driving mode.
Optionally, as shown in Figure 4, this brake control circuit also comprises: potential device R, and potential device R is used for carrying out dividing potential drop to the received signal.
3rd end g of mouth difference and instruction change-over switch 16 and the first end i of potential device R of DAC14 connect, and the 3rd end g of the second end j and instruction change-over switch 16 of potential device R connects, the 3rd end k ground connection of potential device R.
Example, the shift simulation signal s generated due to electronic brake pedal 03 comprises two-way shift simulation signal, and the brake control signal x that main control unit 02 generates only includes a road signal, therefore after DAC14 converts this brake control signal x to analog signal by digital signal, the brake control signal x that this can be converted to analog signal is sent to the 3rd end g and the potential device R of instruction change-over switch 16 respectively, potential device R can carry out dividing potential drop to this brake control signal x, obtain the analog signal x1 that amplitude is this brake control signal x amplitude half, and this analog signal x1 is also sent to the 3rd end g of instruction change-over switch 16, 3rd end g of now instruction change-over switch 16 confirms that the brake control signal x received comprises two paths of signals, the i.e. brake control signal x of DAC14 transmission and the analog signal x1 of potential device R transmission.
Optionally, logic gates 15 is AND circuit, and AND circuit is a kind of logic gates performing AND operation, and AND circuit has multiple input end, a mouth.When all input ends while during input high level, mouth just exports high level, otherwise output low level
When logic gates 15 is AND circuit, if the first level is high level, when second electrical level is high level, then the switching command that logic gates 15 exports is high level, and the output control signal y that instruction change-over switch 16 exports is brake control signal x; If arbitrary level is low level in the first level and second electrical level, then the switching command that logic gates 15 exports is low level, and the output control signal y that instruction change-over switch 16 exports is shift simulation signal s.
In embodiments of the present invention, when mode selector switch S is in off-state, the second electrical level that switch control module 05 generates is high level, and when mode selector switch S is in conducting state, the second electrical level that switch control module 05 generates is low level; When MCU13 confirms that electronic brake pedal 03 does not receive the stampede operation of chaufeur according to shift simulation signal s, the first level that MCU13 generates is high level, when MCU13 confirms that electronic brake pedal 03 receives the stampede operation of chaufeur according to shift simulation signal s, the first level that MCU13 generates is low level.
In summary, when mode selector switch S is in off-state, and when electronic brake pedal 03 does not receive the stampede operation of chaufeur, the switching command that logic gates 15 exports is high level, the output control signal y that instruction change-over switch 16 exports is brake control signal x, and now vehicle is in automatic driving mode; When mode selector switch S is in off-state, and when electronic brake pedal 03 receives the stampede operation of chaufeur, the switching command that then logic gates 15 exports is low level, the output control signal y that instruction change-over switch 16 exports is shift simulation signal s, and now vehicle is in manual drive pattern; When mode selector switch S is in conducting state, no matter then whether electronic brake pedal 03 receives the stampede operation of chaufeur, the switching command that logic gates 15 exports is all low level, the output control signal y that now instruction change-over switch 16 exports is shift simulation signal s, and vehicle is in manual drive pattern.In actual applications, when chaufeur finds that main control unit 02 breaks down, can this mode selector switch of manual-lock S, no matter now whether electronic brake pedal 03 receives the stampede operation of chaufeur, all cannot be switched to automatic driving mode, thus ensure that the safety of vehicle braking control.
In sum, a kind of vehicle brake control apparatus that the embodiment of the present invention provides, this vehicle brake control apparatus is except comprising electronic brake pedal, main control unit and ESC control unit, also comprise brake control circuit, the input end of this brake control circuit is connected with electronic brake pedal and main control unit respectively, the mouth of brake control circuit is connected with ESC control unit, in the brake control signal of the shift simulation signal that this brake control circuit can generate at electronic brake pedal and main control unit generation, select a signal as output control signal, and send this output control signal to ESC control unit, ESC control unit carries out control for brake according to this output control signal to vehicle, the vehicle brake control apparatus that the embodiment of the present invention provides, do not need the automatic Pilot that mechanial control device can realize vehicle is installed, the blocked operation of Vehicular automatic driving and manual drive is easy, and the cost of this vehicle brake control apparatus is lower.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a vehicle brake control apparatus, is characterized in that, described device comprises:
Brake control circuit, electronic brake pedal, main control unit and electronic stabilizing control system ESC control unit;
Described electronic brake pedal, for receiving the stampede operation of chaufeur, generates shift simulation signal according to described stampede operation;
Described main control unit is used for generating brake control signal according to the road environment of vehicle;
The input end of described brake control circuit is connected with described electronic brake pedal and described main control unit respectively, the mouth of described brake control circuit is connected with described ESC control unit, for selecting the signal as exporting control signal in the described shift simulation signal of described electronic brake pedal and the described brake control signal of described main control unit, and send described output control signal to described ESC control unit;
Described ESC control unit is used for carrying out control for brake according to described output control signal to vehicle.
2. device according to claim 1, is characterized in that, described device also comprises:
Switch control module, described switch control module is connected with described brake control circuit, and described brake control circuit is used for the signal selected in described shift simulation signal and described brake control signal under the control of described switch control module as described output control signal.
3. device according to claim 2, is characterized in that,
Described brake control circuit comprises:
Controller local area network CAN circuit, low-pass filter, micro-control unit MCU, digital analog converter DAC, logic gates and instruction change-over switch;
Described switch control module comprises: mode selector switch and power supply, and described mode selector switch is for receiving the blocked operation of chaufeur, and described switch control module is used for according to described blocked operation, generates second electrical level;
The input end of described CAN circuit is connected with described main control unit, and the mouth of described CAN circuit is connected with the first end of described MCU, and described CAN circuit is used for described brake control signal to be sent to described MCU;
The input end of described low-pass filter is connected with described electronic brake pedal, the mouth of described low-pass filter is connected with second end of described MCU and the first end of described instruction change-over switch respectively, described low-pass filter is used for carrying out filtering to described shift simulation signal, and sends filtered described shift simulation signal to described MCU and described instruction change-over switch;
3rd end of described MCU is connected with the first input end of described logic gates, second input end of described logic gates is connected with described switch control module, the mouth of described logic gates is connected with the second end of described instruction change-over switch, described MCU is used for generating the first level according to described shift simulation signal, and sends described first level to described logic gates; Described logic gates is used for generating switching command according to described first level and described second electrical level, and sends described switching command to described instruction change-over switch;
4th end of described MCU is connected with the input end of described DAC, the mouth of described DAC and the three-terminal link of described instruction change-over switch, described MCU is also for sending described brake control signal to described DAC, described DAC is used for carrying out digital-to-analogue conversion to described brake control signal, and the described brake control signal after digital-to-analogue conversion is sent to described instruction change-over switch;
4th end of described instruction change-over switch is connected with described ESC control unit, described instruction change-over switch is used for according to described switching command, in described shift simulation signal and described brake control signal, select the signal as described output control signal, and send described output control signal to described ESC control unit.
4. device according to claim 3, is characterized in that,
Described brake control circuit also comprises: potential device,
The mouth of described DAC is connected with the first end of described instruction change-over switch and described potential device respectively, and the second end of described potential device is connected with described instruction change-over switch, the 3rd end ground connection of described potential device.
5. device according to claim 4, is characterized in that,
4th end of described MCU is connected by serial peripheral SPI interface with the input end of described DAC.
6., according to the arbitrary described device of claim 3 to 5, it is characterized in that,
Described logic gates is AND circuit;
If described first level is high level, when described second electrical level is high level, then the switching command that described logic gates exports is high level, and the output control signal that described instruction change-over switch exports is described brake control signal;
If arbitrary level is low level in described first level and described second electrical level, then the switching command that described logic gates exports is low level, and the output control signal that described instruction change-over switch exports is described shift simulation signal.
7., according to the arbitrary described device of claim 1 to 5, it is characterized in that,
Described shift simulation signal is two-way shift simulation signal.
8., according to the arbitrary described device of claim 3 to 5, it is characterized in that,
The power supply of described power supply to be voltage be 5V.
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| CN201510358878.7A CN105035045B (en) | 2015-06-25 | 2015-06-25 | Vehicle brake control apparatus |
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| CN201510358878.7A CN105035045B (en) | 2015-06-25 | 2015-06-25 | Vehicle brake control apparatus |
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| CN113459944A (en) * | 2021-07-16 | 2021-10-01 | 深圳元戎启行科技有限公司 | Brake lamp control device, system and method and unmanned automobile |
| CN114407856A (en) * | 2022-02-14 | 2022-04-29 | 一汽解放汽车有限公司 | Vehicle braking method and system |
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