CN105035045B - Vehicle brake control apparatus - Google Patents
Vehicle brake control apparatus Download PDFInfo
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- CN105035045B CN105035045B CN201510358878.7A CN201510358878A CN105035045B CN 105035045 B CN105035045 B CN 105035045B CN 201510358878 A CN201510358878 A CN 201510358878A CN 105035045 B CN105035045 B CN 105035045B
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- 238000004088 simulation Methods 0.000 claims abstract description 46
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 5
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 2
- 230000005684 electric field Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
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Classifications
-
- 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
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
The invention discloses a kind of vehicle brake control apparatus, belong to vehicle electric field.Described device includes：Brake control circuit, electronic brake pedal, main control unit and electronic stabilizing control system ESC control units；The input 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 control units, the signal of output control signal is selected as in the brake control signal generated for the shift simulation signal generated in the electronic brake pedal and the main control unit, and the output control signal is sent to the ESC control units；The ESC control units are used to carry out control for brake to vehicle according to the output control signal.Vehicle brake control apparatus disclosed by the invention, it is not necessary to install the handover operation simplicity of mechanial control device, automatic Pilot and manual drive, and the cost of the vehicle brake control apparatus is relatively low.
Description
Technical field
The present invention relates to vehicle electric field, more particularly to a kind of vehicle brake control apparatus.
Background technology
Fast development and people's living standards continue to improve with auto industry, automobile come into ordinary populace
Family, but the traffic jam occurred therewith, traffic accident but getting worse, in order to solve these problems, towards intelligent transportation
Intelligent automobile arise at the historic moment, intelligent automobile can realize the function of automatic Pilot according to road environment, and wherein control for brake is
One of most basic function during intelligent automobile automatic Pilot, control for brake can make the automobile in traveling stop or lower speed.
In correlation technique, the implementation of control for brake includes following several during intelligent automobile automatic Pilot：Mode one：
Install mechanial control device on brake pedal additional and control for brake is carried out to the brake pedal；Mode two：Control unit passes through controller
LAN (English：ControllerAreaNetwork；Referred to as：CAN) control instruction is sent to electronic stabilizing control system
(English：Electronic Stability Control；Referred to as：ESC), control for brake is implemented by ESC.
During the present invention is realized, inventor has found that prior art at least has problems with：
First way applied mechanical device occupancy cab space, easy influence automatic Pilot and manual drive are cut
Change, control is complicated, poor practicability.The second way then needs ESC producers to coordinate exploitation, open CAN communication agreement, cost compared with
It is high.
The content of the invention
In order to solve problem of the prior art, the embodiments of the invention provide a kind of vehicle brake control apparatus.The dress
Put including：
Brake control circuit, electronic brake pedal, main control unit and electronic stabilizing control system ESC control units；
The electronic brake pedal is used for the stampede operation for receiving driver, and shift simulation is generated according to the stampede operation
Signal；
The main control unit is used to generate brake control signal according to the road environment of vehicle；
The input of the brake control circuit is connected with the electronic brake pedal and the main control unit respectively, institute
The output end for stating brake control circuit is connected with the ESC control units, for the displacement in the electronic brake pedal
It is selected as the signal of output control signal in the brake control signal of analog signal and the main control unit, and to institute
State ESC control units and send the output control signal；
The ESC control units are used to carry out control for brake to vehicle according to the output control signal.
Optionally, described device also includes：
Switch control module, the switch control module are connected with the brake control circuit, the brake control circuit
For being selected as under the control of the switch control module in the shift simulation signal and the brake control signal
The signal of the output control signal.
Optionally, the brake control circuit includes：
Controller local area network's CAN circuit, low pass filter, micro-control unit MCU, digital analog converter DAC, logic
Gate circuit and instruction switching switch；
The switch control module includes：Mode selector switch and power supply, the mode selector switch, which is used to receive, to be driven
The handover operation of member, the switch control module are used to, according to the handover operation, generate second electrical level；
The input of the CAN circuit is connected with the main control unit, the output end of the CAN circuit and the MCU
First end connection, the CAN circuit be used for the brake control signal is sent to the MCU；
The input of the low pass filter is connected with the electronic brake pedal, the output end point of the low pass filter
It is not connected with the second end of the MCU and the first end of the instruction switching switch, the low pass filter is used for institute's rheme
Move analog signal to be filtered, and the filtered shift simulation signal is sent to the MCU and the instruction switching switch；
The 3rd end of the MCU is connected with the first input end of the logic gates, and the second of the logic gates
Input is connected with the switch control module, the output end of the logic gates and the second end of the instruction switching switch
Connection, the MCU are used for according to the level of shift simulation signal generation first, and send described the to the logic gates
One level；The logic gates is used to generate switching command according to first level and the second electrical level, and to described
Instruction switching switch sends the switching command；
The 4th end of the MCU is connected with the input of the DAC, and the output end of the DAC is opened with the instruction switching
The three-terminal link closed, the MCU are additionally operable to send the brake control signal to the DAC, and the DAC is used for the system
Dynamic control signal carries out digital-to-analogue conversion, and the brake control signal after digital-to-analogue conversion is sent to the instruction
Switching switch；
4th end of the instruction switching switch is connected with the ESC control units, and the instruction switching switch is used for root
According to the switching command, the output control signal is selected as in the shift simulation signal and the brake control signal
Signal, and send the output control signal to the ESC control units.
Optionally, the brake control circuit also includes：Potentiometer,
First end of the output end of the DAC respectively with the instruction switching switch and the potentiometer is connected, the electricity
Second end of position device and the instruction switching switch connection, the 3rd end ground connection of the potentiometer.
Optionally, the 4th end of the MCU is connected with the input of the DAC by serial peripheral SPI interface.
Optionally, the logic gates is and gate circuit；
If first level is high level, when the second electrical level is high level, then the logic gates exports
Switching command is high level, and the output control signal of the instruction switching switch output is the brake control signal；
If any level is low level in first level and the second electrical level, the logic gates output
Switching command is low level, and the output control signal of the instruction switching switch output is the shift simulation signal.
Optionally, the shift simulation signal is two-way shift simulation signal.
Optionally, the power supply is the power supply that voltage is 5V.
The beneficial effect that technical scheme provided in an embodiment of the present invention is brought is：
In summary, a kind of vehicle brake control apparatus provided in an embodiment of the present invention, the vehicle brake control apparatus remove
Include electronic brake pedal, main control unit and ESC control units, in addition to brake control circuit, the brake control circuit
Input be connected respectively with electronic brake pedal and main control unit, the output end of brake control circuit and ESC control units
Connection, the shift simulation signal and the braking of main control unit generation that the brake control circuit can generate in electronic brake pedal
In control signal, a signal is selected to send the output control signal, ESC as output control signal, and to ESC control units
Control unit carries out control for brake, vehicle braking control dress provided in an embodiment of the present invention to vehicle according to the output control signal
Put, it is not necessary to which the automatic Pilot that vehicle can be achieved in mechanial control device, the switching of Vehicular automatic driving and manual drive are installed
It is easy to operate, and the cost of the vehicle brake control apparatus is relatively low.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is a kind of structural representation of vehicle brake control apparatus provided in an embodiment of the present invention；
Fig. 2 is the structural representation of another vehicle brake control apparatus provided in an embodiment of the present invention；
Fig. 3 is the structural representation of another vehicle brake control apparatus provided in an embodiment of the present invention；
Fig. 4 is a kind of structural representation of potentiometer provided in an embodiment of the present invention.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is described in further detail.
The embodiments of the invention provide a kind of vehicle brake control apparatus.As shown in figure 1, the device includes：
Brake control circuit 01, main control unit 02, electronic brake pedal 03 and electronic stabilizing control system (English：
Electronic Stability Program；Referred to as：ESC) control unit 04；
Electronic brake pedal 03 is used for the stampede operation for receiving driver, and generates shift simulation letter according to the stampede operation
Number s.
Example, shift simulation signal s includes two-way shift simulation signal, and displacement is provided with electronic brake pedal 03
Sensor, the displacement transducer can monitor the position of electronic brake pedal 03, when displacement transducer monitors that deceleration of electrons is stepped on
When the position of plate 03 changes, the displacement transducer in electronic brake pedal 03 can generate shift simulation signal s, and should
Shift simulation signal s is sent to brake control circuit 01.
Main control unit 02 is used to generate brake control signal x according to the road environment of vehicle.
In embodiments of the present invention, video frequency pick-up head, radar sensor and airborne laser range finder are also provided with vehicle
Etc. multiple sensors, the plurality of sensor can send the road environment of the vehicle got to main control unit 02, master control
Unit 02 processed can generate brake control signal x according to the road environment of vehicle, and brake control signal x is sent to braking
Control circuit 01.
The input of brake control circuit 01 is connected with electronic brake pedal 03 and main control unit 02 respectively, control for brake
The output end of circuit 01 is connected with ESC control units 04, in the shift simulation signal s of electronic brake pedal 03 and main control
Output control signal y signal is selected as in the brake control signal x of unit 02, and this is defeated to the transmission of ESC control units 04
Go out control signal y.
Example, brake control circuit 01 receives shift simulation signal s and the main control of the transmission of electronic brake pedal 03
, it is necessary to select a signal in shift simulation signal s and brake control signal x after the brake control signal x that unit 02 is sent
As output control signal y, if selection shift simulation signal s as output control signal y, brake control circuit 01 to
The output control signal y that ESC control units 04 are sent is shift simulation signal s, and now vehicle is in manual drive pattern；
If selection brake control signal x is sent as output control signal y, brake control circuit 01 to ESC control units 04
Output control signal y is brake control signal x, and now vehicle is in automatic driving mode.
ESC control units 04 are used to carry out control for brake to vehicle according to output control signal y.
Example, electronic control unit and actuator can be included in ESC control units 04, in ESC control units 04
Electronic control unit can carry out control for brake by actuator according to the output control signal y received to vehicle.Wherein hold
Row device includes Conventional braking systems (such as vacuum booster, pipeline and brake) and fluid pressure governor.ESC control units are to car
Carry out control for brake detailed process refer to correlation technique, the embodiment of the present invention does not repeat.
In summary, a kind of vehicle brake control apparatus provided in an embodiment of the present invention, the vehicle brake control apparatus remove
Include electronic brake pedal, main control unit and ESC control units, in addition to brake control circuit, the brake control circuit
Input be connected respectively with electronic brake pedal and main control unit, the output end of brake control circuit and ESC control units
Connection, the shift simulation signal and the braking of main control unit generation that the brake control circuit can generate in electronic brake pedal
In control signal, a signal is selected to send the output control signal, ESC as output control signal, and to ESC control units
Control unit carries out control for brake, vehicle braking control dress provided in an embodiment of the present invention to vehicle according to the output control signal
Put, it is not necessary to which the automatic Pilot that vehicle can be achieved in mechanial control device, the switching of Vehicular automatic driving and manual drive are installed
It is easy to operate, and the cost of the vehicle brake control apparatus is relatively low.
Optionally, as shown in Fig. 2 the vehicle brake control apparatus also includes：
Switch control module 05, switch control module 05 are connected with brake control circuit 01, and brake control circuit 01 is used for
Under the control of switch control module 05 output control signal y is selected as in shift simulation signal s and brake control signal x
Signal.
Optionally, as shown in figure 3, brake control circuit 01 includes：
Controller local area network's (English：ControllerAreaNetwork；Referred to as：CAN) circuit 11, low pass filter
12nd, micro-control unit (English：MicrocontrollerUnit；Referred to as：MCU) 13, digital analog converter (English：
Digital to analog converter；Referred to as：DAC) 14, logic gates 15 and instruction switching switch 16.
Switch control module 05 includes：Mode selector switch S and power supply V, mode selector switch S are used to receive driver's
Handover operation, switch control module 05 are used to, according to the handover operation, generate second electrical level.
Example, power supply V is the power supply that voltage is 5V.Mode selector switch S can be according to the handover operation of driver
Switch switching is carried out, if mode selector switch S (also referred to as closure state) in the conduction state, what switch control module 05 generated
Second electrical level is low level；If mode selector switch S is off, the second electrical level that switch control module 05 generates is
High level.
The input of CAN circuit 11 is connected with main control unit 02, the output end of CAN circuit 11 and MCU13 first end a
Connection, CAN circuit are used to send brake control signal x to MCU13.
The input of low pass filter 12 is connected with electronic brake pedal 03, the output end of low pass filter 12 respectively with
MCU13 the second end b connects with the first end e of instruction switching switch 16, and low pass filter 12 is used to enter shift simulation signal s
Row filtering, and send filtered shift simulation signal s to MCU13 and instruction switching switch 16.
Example, the low pass filter 12 can be resistance capacitance (English：Resistance-Capacitance；Referred to as：
RC) low pass filter, RC low pass filters 12 are filtered to shift simulation signal s, can avoid high-frequency signal to the position
Move analog signal s interference.
MCU13 the 3rd end c is connected with the first input end A of logic gates 15, the second input of logic gates 15
End B is connected with switch control module 05, and the output end Y of logic gates 15 is connected with the second end f of instruction switching switch 16,
MCU13 is used to generate the first level according to shift simulation signal s, and sends first level to logic gates 15；Gate
Circuit 15 sends the switching to instruction switching switch 16 and referred to for generating switching command according to first level and second electrical level
Order.
In embodiments of the present invention, analog-digital converter (English is provided with MCU13：Analog to Digital
Converter；Referred to as：ADC), after MCU13 receives shift simulation signal s, the shift simulation can be believed by the ADC
Number s be converted into multiple time points respectively corresponding to magnitude of voltage, afterwards, the plurality of magnitude of voltage can be fitted to obtain by MCU13
One magnitude of voltage matched curve.Threshold voltage and threshold slope are additionally provided with MCU13, when the minimum amount of voltage that of the matched curve
More than the threshold voltage, and when the slope of the matched curve is more than the threshold slope, then MCU13 confirms that electronic brake pedal 03 connects
The stampede operation of driver is have received, the first level of now MCU13 generations is low level；When the minimum voltage of the matched curve
Value be not more than the threshold voltage, or when the slope of the matched curve is not more than the threshold slope, MCU13 confirmation decelerations of electrons are stepped on
Plate 03 is not received by the stampede operation of driver, and the first level of now MCU13 generations is high level.
MCU13 the 4th end d and DAC14 input connection, DAC14 output end and the 3rd of instruction switching switch 16
G connections are held, MCU13 is additionally operable to send brake control signal x, DAC14 for entering line number to brake control signal x to DAC14
Word analog-converted, and the brake control signal x after digital-to-analogue conversion is sent to instruction switching switch 16.
Example, MCU13 the 4th end d and DAC14 input passes through serial peripheral (English：Serial
Peripheral Interface；Referred to as：SPI) interface connects, and MCU13 receives the brake control signal x of CAN circuit transmission
Afterwards, brake control signal x can be sent to DAC14 by SPI interface.The control for brake generated due to main control unit 02
Signal x is data signal, and ESC control units 04 can only receive analog signal, it is therefore desirable to by DAC14 by the control for brake
Signal x is converted into analog signal by data signal, then the brake control signal x for being converted into analog signal is sent to instruction and cut
Change switch 16.
4th end h of instruction switching switch 16 is connected with ESC control units 04, and instruction switching switch 16 is used for according to switching
Instruction, the signal of output control signal y outputs is selected as in shift simulation signal s and brake control signal x, and to ESC
Control unit sends output control signal y.
Example, when the switching command is low level, the output control signal y of the output of instruction switching switch 16 is displacement
Analog signal s, then now vehicle is in manual drive pattern；When the switching command is high level, instruction switching switch 16 is defeated
The output control signal y gone out is brake control signal x, then now vehicle is in automatic driving mode.
Optionally, as shown in figure 4, the brake control circuit also includes：Potentiometer R, potentiometer R are used for the letter to receiving
Number carry out partial pressure.
First end i of the DAC14 output end respectively with the 3rd end g and potentiometer R of instruction switching switch 16 is connected, electricity
Position device R the second end j is connected with the 3rd end g of instruction switching switch 16, potentiometer R the 3rd end k ground connection.
Example, because the shift simulation signal s that electronic brake pedal 03 generates includes two-way shift simulation signal, and lead
The brake control signal x that control unit 02 generates only includes signal all the way, thus DAC14 by brake control signal x by numeral
After signal is converted into analog signal, the brake control signal x that this can be converted into analog signal is respectively sent to instruction switching
The 3rd end g and potentiometer R of switch 16, potentiometer R can carry out partial pressure to brake control signal x, and it is the system to obtain amplitude
The analog signal x1 of dynamic control signal x amplitude half, and analog signal x1 is also sent to the 3rd of instruction switching switch 16 the
G is held, the 3rd end g of now instruction switching switch 16 confirms that the brake control signal x received includes two paths of signals, i.e. DAC14
The analog signal x1 that the brake control signal x and potentiometer R of transmission are sent.
Optionally, logic gates 15 is and gate circuit, is a kind of logic gates for performing AND operation with gate circuit,
There are multiple inputs, an output end with gate circuit.When all inputs input high level simultaneously, output end just exports height
Level, otherwise export low level
When logic gates 15 is with gate circuit, if the first level is high level, when second electrical level is high level, then patrol
It is high level to collect the switching command that gate circuit 15 exports, and the output control signal y that instruction switching switch 16 exports is control for brake
Signal x；If any level is low level in the first level and second electrical level, the switching command that logic gates 15 exports is low
Level, the output control signal y of the output of instruction switching switch 16 is shift simulation signal s.
In embodiments of the present invention, when mode selector switch S is off, switch control module 05 generate second
Level is high level, and when mode selector switch S is in the conduction state, the second electrical level that switch control module 05 generates is low electricity
It is flat；When MCU13 confirms that electronic brake pedal 03 is not received by the stampede operation of driver according to shift simulation signal s, MCU13
First level of generation is high level, and MCU13 confirms that electronic brake pedal 03 receives driver's according to shift simulation signal s
During stampede operation, the first level of MCU13 generations is low level.
In summary, when mode selector switch S is off, and electronic brake pedal 03 is not received by driving
During the stampede operation of member, the switching command that logic gates 15 exports is high level, the output control of the output of instruction switching switch 16
Signal y processed is brake control signal x, and now vehicle is in automatic driving mode；When mode selector switch S is off,
And when electronic brake pedal 03 receives the stampede operation of driver, then the switching command that logic gates 15 exports is low electricity
Flat, the output control signal y of the output of instruction switching switch 16 is shift simulation signal s, and now vehicle is in manual drive pattern；
When mode selector switch S is in the conduction state, no matter then whether electronic brake pedal 03 receives the stampede operation of driver,
The switching command that logic gates 15 exports all is low level, and the output control signal y of the output of now instruction switching switch 16 is
Shift simulation signal s, vehicle are in manual drive pattern.In actual applications, when driver has found that main control unit 02 occurs
, can be with manual-lock mode selector switch S, no matter now whether electronic brake pedal 03 receives stepping on for driver during failure
Operation is stepped on, can not all be switched to automatic driving mode, so as to ensure that the security of vehicle braking control.
In summary, a kind of vehicle brake control apparatus provided in an embodiment of the present invention, the vehicle brake control apparatus remove
Include electronic brake pedal, main control unit and ESC control units, in addition to brake control circuit, the brake control circuit
Input be connected respectively with electronic brake pedal and main control unit, the output end of brake control circuit and ESC control units
Connection, the shift simulation signal and the braking of main control unit generation that the brake control circuit can generate in electronic brake pedal
In control signal, a signal is selected to send the output control signal, ESC as output control signal, and to ESC control units
Control unit carries out control for brake, vehicle braking control dress provided in an embodiment of the present invention to vehicle according to the output control signal
Put, it is not necessary to which the automatic Pilot that vehicle can be achieved in mechanial control device, the switching of Vehicular automatic driving and manual drive are installed
It is easy to operate, and the cost of the vehicle brake control apparatus is relatively low.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (6)
1. a kind of vehicle brake control apparatus, it is characterised in that described device includes：
Brake control circuit, electronic brake pedal, main control unit and electronic stabilizing control system ESC control units；
The electronic brake pedal is used for the stampede operation for receiving driver, and shift simulation letter is generated according to the stampede operation
Number；
The main control unit is used to generate brake control signal according to the road environment of vehicle；
The input of the brake control circuit is connected with the electronic brake pedal and the main control unit respectively, the system
The output end of dynamic control circuit is connected with the ESC control units, for the shift simulation in the electronic brake pedal
It is selected as the signal of output control signal in the brake control signal of signal and the main control unit, and to described
ESC control units send the output control signal；
The ESC control units are used to carry out control for brake to vehicle according to the output control signal；
Described device also includes：
Switch control module, the switch control module are connected with the brake control circuit, and the brake control circuit is used for
It is selected as under the control of the switch control module in the shift simulation signal and the brake control signal described
The signal of output control signal；
The brake control circuit includes：
Controller local area network's CAN circuit, low pass filter, micro-control unit MCU, digital analog converter DAC, gate electricity
Road and instruction switching switch；
The switch control module includes：Mode selector switch and power supply, the mode selector switch are used to receive driver's
Handover operation, the switch control module are used to, according to the handover operation, generate second electrical level；
The input of the CAN circuit is connected with the main control unit, and the of the output end of the CAN circuit and the MCU
One end connects, and the CAN circuit is used to send the brake control signal to the MCU；
The input of the low pass filter is connected with the electronic brake pedal, the output end of the low pass filter respectively with
The second end of the MCU connects with the first end of the instruction switching switch, and the low pass filter is used for the displacement mould
Intend signal to be filtered, and the filtered shift simulation signal is sent to the MCU and the instruction switching switch；
The 3rd end of the MCU is connected with the first input end of the logic gates, the second input of the logic gates
End is connected with the switch control module, and the output end of the logic gates and the second end of the instruction switching switch connect
Connect, the MCU is used for according to the level of shift simulation signal generation first, and sends described first to the logic gates
Level；The logic gates is used to generate switching command according to first level and the second electrical level, and to the finger
Order switching switch sends the switching command；
The 4th end of the MCU is connected with the input of the DAC, the output end of the DAC and the instruction switching switch
Three-terminal link, the MCU are additionally operable to send the brake control signal to the DAC, and the DAC is used to control the braking
Signal processed carries out digital-to-analogue conversion, and the brake control signal after digital-to-analogue conversion is sent to the instruction and switched
Switch；
4th end of the instruction switching switch is connected with the ESC control units, and the instruction switching switch is used for according to institute
Switching command is stated, the letter of the output control signal is selected as in the shift simulation signal and the brake control signal
Number, and send the output control signal to the ESC control units.
2. device according to claim 1, it is characterised in that
The brake control circuit also includes：Potentiometer,
First end of the output end of the DAC respectively with the instruction switching switch and the potentiometer is connected, the potentiometer
The second end with it is described instruction switching switch connection, the potentiometer the 3rd end ground connection.
3. device according to claim 2, it is characterised in that
The 4th end of the MCU is connected with the input of the DAC by serial peripheral SPI interface.
4. device according to any one of claims 1 to 3, it is characterised in that
The logic gates is and gate circuit；
If first level is high level, when the second electrical level is high level, then the switching of the logic gates output
Instruct as high level, the output control signal of the instruction switching switch output is the brake control signal；
If any level is low level in first level and the second electrical level, the switching of the logic gates output
Instruct as low level, the output control signal of the instruction switching switch output is the shift simulation signal.
5. device according to any one of claims 1 to 3, it is characterised in that
The shift simulation signal is two-way shift simulation signal.
6. device according to any one of claims 1 to 3, it is characterised in that
The power supply is the power supply that voltage is 5V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510358878.7A CN105035045B (en) | 2015-06-25 | 2015-06-25 | Vehicle brake control apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510358878.7A CN105035045B (en) | 2015-06-25 | 2015-06-25 | Vehicle brake control apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN105035045A CN105035045A (en) | 2015-11-11 |
| CN105035045B true CN105035045B (en) | 2017-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510358878.7A Active CN105035045B (en) | 2015-06-25 | 2015-06-25 | Vehicle brake control apparatus |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10351147B2 (en) * | 2016-09-20 | 2019-07-16 | Ford Global Technologies, Llc | Autonomous sensing vehicle pedals |
| CN108639054B (en) * | 2018-05-16 | 2020-05-19 | 天津英创汇智汽车技术有限公司 | Drive method of drive-by-wire system and drive-by-wire system |
| 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 |
| CN114407856B (en) * | 2022-02-14 | 2023-08-18 | 一汽解放汽车有限公司 | Vehicle braking method and system |
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| CN105035045A (en) | 2015-11-11 |
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