CN106740787A - Line control brake system based on time-shared serial with parallel control simultaneously - Google Patents

Line control brake system based on time-shared serial with parallel control simultaneously Download PDF

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Publication number
CN106740787A
CN106740787A CN201710013743.6A CN201710013743A CN106740787A CN 106740787 A CN106740787 A CN 106740787A CN 201710013743 A CN201710013743 A CN 201710013743A CN 106740787 A CN106740787 A CN 106740787A
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CN
China
Prior art keywords
electromagnetic valve
switch electromagnetic
master cylinder
switch
valve
Prior art date
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Pending
Application number
CN201710013743.6A
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Chinese (zh)
Inventor
李静
王晨
谷贺冲
丁明慧
夏承贺
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Jilin University
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Jilin University
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Publication date
Application filed by Jilin University filed Critical Jilin University
Priority to CN201710013743.6A priority Critical patent/CN106740787A/en
Publication of CN106740787A publication Critical patent/CN106740787A/en
Pending legal-status Critical Current

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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
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/66—Electrical control in fluid-pressure brake systems
    • B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
    • B60T13/686—Electrical control in fluid-pressure brake systems by electrically-controlled valves in hydraulic systems or parts thereof
    • 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

Abstract

The invention discloses a kind of line control brake system based on time-shared serial with parallel control simultaneously, to overcome the line traffic control brake fluid system of big Conventional braking systems vacuum booster volume, price and motor power-assisted high to motor requirement, price and ensureing the problem of accurate pressure control, it includes the line control brake system based on time-shared serial control and the line control brake system based on parallel control simultaneously；Line control brake system based on time-shared serial control includes the master cylinder output unit (A) with lubricating cup, No. 1 hydraulic control unit (B1), electronic control unit (C) and wheel drag (D)；Line control brake system based on parallel control simultaneously includes the master cylinder output unit (A) with lubricating cup, No. 2 hydraulic control units (B2), electronic control unit (C) and wheel drags (D)；That is time-shared serial outer other parts different with No. 2 hydraulic control units (B2) from No. 1 hydraulic control unit (B1) of concurrent control system simultaneously are identical.

Description

Line control brake system based on time-shared serial with parallel control simultaneously
Technical field
The invention belongs to a kind of line control brake system of brake system of car technical field.More specifically, the present invention is related to And the line control brake system based on time-shared serial with parallel control simultaneously.
Background technology
With the improvement of people ' s living standards, auto industry is developed rapidly, people to the pursuit of automotive engineering increasingly The security technique of height, particularly automobile.The safe practice of automobile is closely related with automobile brake, traditional vacuum automobile power-assisted Brakes volume is big, complex structure, high cost, big to engine degree of dependence.Cancel vacuum boost system reduction at present right The dependence of engine, can active fast decompression, accurate pressure control and do not influence pedal sense to have become a kind of automobile brake Research tendency.
For pure line control brake system, it transmits energy with wire, and signal is transmitted with data wire, eliminates vacuum and helps Force system reduces the dependence to engine, but is paralysed once brakes when electronic control system breaks down , brake failure is caused, there is potential safety hazard.
Needed in the case of the supercharging of the operating modes such as ABS, TCS, ESC or pressurize using the line traffic control brake fluid system of motor power-assisted The rotating of motor switch motor within several milliseconds, the requirement to motor is very high, and certain cost is also very big.
Further, such as China Patent Publication No. CN103303281A, 2013 publication dates September 18 days, invention wound Entitled " the integrated line control brake system " of patent is made, the patent of invention discloses a kind of integrated line control brake system, the system Contain electronic control unit, brake fluid reservoir, motor-pump, master cylinder, brake pedal, wheel drag, switch electromagnetic valve with Check valve.The system can give master cylinder fast run-up pressure using motor-pump, so that wheel cylinder Quick-pressurizing realizes system It is dynamic, but the system is exactly it cannot be guaranteed that accurate pressure control in the presence of a defect.
The content of the invention
The technical problems to be solved by the invention be overcome prior art Conventional braking systems vacuum booster volume it is big, The line traffic control brake fluid system of price and motor power-assisted is carried to the problem of motor requirement height, price and the accurate pressure control of guarantee The line control brake system based on time-shared serial with parallel control is simultaneously supplied.
In order to solve the above technical problems, the present invention adopts the following technical scheme that realization：
A kind of line control brake system based on time-shared serial control includes electronic control unit, electronic control unit and band oil The master cylinder output unit of cup is connected with No. 1 hydraulic control unit electric wire, the described line traffic control based on time-shared serial control Dynamic system also includes the master cylinder output unit with lubricating cup, No. 1 hydraulic control unit and wheel drag；
The described master cylinder output unit with lubricating cup includes lubricating cup, master cylinder housing；
No. 1 described hydraulic control unit includes pump, No. two pumps, linear voltage regulation valve, first switch magnetic valve, second Switch electromagnetic valve, the 4th switch electromagnetic valve, the 5th switch electromagnetic valve, the 6th switch electromagnetic valve and the 7th switch electromagnetic valve；
Described wheel drag includes left rear wheel brake, off-front wheel brake, near front wheel brake, off hind wheel braking Device；
No. 1 oil-out of described lubricating cup and one end of linear voltage regulation valve, the oil inlet of pump and No. two oil-feeds of pump Mouth pipeline connection, the chamber oil-out of master cylinder I on master cylinder housing is connected with one end pipeline of first switch magnetic valve, on master cylinder housing The chamber oil-out of master cylinder II and second switch magnetic valve the connection of one end pipeline, the 4th switch electromagnetic valve, the 5th switch electromagnetic valve, The other end of the 6th switch electromagnetic valve and the 7th switch electromagnetic valve successively with left rear wheel brake, off-front wheel brake, the near front wheel Brake is connected with off hind wheel brake pipeline.
The master cylinder output unit with lubricating cup described in technical scheme also includes that brake pedal, pedal displacement are sensed Device, master cylinder, pedal sense simulator and the 3rd switch electromagnetic valve；No. 2 oil-outs and No. 3 oil-outs on described lubricating cup Connected with two oil inlet pipelines on master cylinder housing in master cylinder successively, the chamber of master cylinder II in master cylinder on master cylinder housing goes out Hydraulic fluid port is connected with one end pipeline of the 3rd switch electromagnetic valve, the other end of the 3rd switch electromagnetic valve and a left side for pedal sense simulator End pipe road connects；The right-hand member connection brake pedal of the push rod in master cylinder, pedal displacement sensor is arranged on brake pedal, 3rd switch electromagnetic valve is normally closed switch magnetic valve.
Pedal sense simulator described in technical scheme is lived comprising pedal sense simulator shell, pedal sense simulator Plug, pedal sense simulator spring；Described pedal sense simulator piston is arranged in pedal sense simulator shell, pedal sense Feel that simulator spring is arranged between pedal sense simulator piston and pedal sense simulator shell right-hand member wall, pedal sense simulation The left and right two ends of device spring respectively with a left side for the right side of pedal sense simulator piston and pedal sense simulator shell right-hand member wall Internal face contact connection, the left end of pedal sense simulator shell is connected with brake piping.
Master cylinder described in technical scheme includes master cylinder housing, master cylinder first piston, master cylinder second piston, master cylinder I Chamber return spring, the chamber return spring of master cylinder II and push rod；Described master cylinder first piston is arranged on master cylinder with master cylinder second piston In housing, the chamber of master cylinder II is formed between master cylinder first piston and master cylinder second piston, a two ends are installed in the chamber of master cylinder II The chamber return spring of master cylinder II being connected with master cylinder second piston with master cylinder first piston respectively, master cylinder first piston and master cylinder housing Left end form master cylinder I chamber, be provided with the chamber of master cylinder I two ends respectively with master cylinder first piston and master cylinder housing left end wall The chamber return spring of master cylinder I of inwall connection, master cylinder second piston forms the chamber of master cylinder III with the right-hand member of master cylinder housing, and master cylinder second is lived The right side of plug is connected with the left end of push rod, and two oil inlets and two are provided with the master cylinder housing wall in the chamber of master cylinder I and the chamber of master cylinder II Oil-out.
No. 1 hydraulic control unit described in technical scheme also include motor, high pressure accumulator, first pressure sensor, Second pressure sensor, the 3rd pressure sensor and the 4th pressure sensor；The dual output shaft end of described motor is successively with one The input shaft end connection of number pump, No. two pumps a, pump is connected with the oil inlet of No. two pumps and one end pipeline of linear voltage regulation valve, and one Number pump and No. two oil-outs and linear voltage regulation valve of pump, first switch magnetic valve, the other end of second switch magnetic valve and high pressure Accumulator pipeline is connected, and a pump is also opened with No. two oil-outs of pump with the 4th switch electromagnetic valve, the 5th switch electromagnetic valve, the 6th Powered-down magnet valve is connected with one end pipeline of the 7th switch electromagnetic valve, the 4th switch electromagnetic valve, the 5th switch electromagnetic valve, the 6th switch The other end of magnetic valve and the 7th switch electromagnetic valve is passed with first pressure sensor, second pressure sensor, the 3rd pressure successively Sensor is connected with the 4th pressure sensor pipeline.
First switch magnetic valve, second switch magnetic valve, the 4th switch electromagnetic valve, the 5th switch described in technical scheme Magnetic valve, the 6th switch electromagnetic valve and the 7th switch electromagnetic valve are that opened under powering-off state normal is closed in the case of energization Open switch electromagnetic valve.
A kind of line control brake system based on parallel control simultaneously includes electronic control unit, electronic control unit and band oil The master cylinder output unit of cup is connected with No. 2 hydraulic control unit electric wires, the described line traffic control based on parallel control simultaneously Dynamic system also includes the master cylinder output unit with lubricating cup, No. 2 hydraulic control units and wheel drag；
The described master cylinder output unit with lubricating cup includes lubricating cup, master cylinder housing；
No. 2 described hydraulic control units include pump, No. two pumps, linear voltage regulation valve, first switch magnetic valve, second Switch electromagnetic valve, the 8th switch electromagnetic valve, the 9th switch electromagnetic valve, the tenth switch electromagnetic valve and the 11st switch electromagnetic valve；
Described wheel drag includes left rear wheel brake, off-front wheel brake, near front wheel brake, off hind wheel braking Device；
No. 1 oil-out of described lubricating cup and one end of linear voltage regulation valve, the oil inlet of pump and No. two oil-feeds of pump Mouth pipeline connection, the chamber oil-out of master cylinder I on master cylinder housing is connected with one end pipeline of first switch magnetic valve, on master cylinder housing The chamber oil-out of master cylinder II and second switch magnetic valve the connection of one end pipeline, the 8th switch electromagnetic valve, the 9th switch electromagnetic valve, One end of tenth switch electromagnetic valve and the 11st switch electromagnetic valve successively with left rear wheel brake, off-front wheel brake, the near front wheel Brake is connected with off hind wheel brake pipeline.
No. 2 hydraulic control units described in technical scheme also include motor, high pressure accumulator, the 4th switch electromagnetic valve, 5th switch electromagnetic valve, the 6th switch electromagnetic valve, the 7th switch electromagnetic valve, first pressure sensor, second pressure sensor, Three pressure sensors, the 4th pressure sensor；The dual output shaft end of described motor successively with a pump, the input shaft of No. two pumps End connection a, pump is connected with the oil inlet of No. two pumps and one end pipeline of linear voltage regulation valve, and a pump is fuel-displaced with No. two pumps Mouth and linear voltage regulation valve, first switch magnetic valve, the other end of second switch magnetic valve are connected with high pressure accumulator pipeline, No. one Pump and No. two oil-outs of pump are also switched with the 4th switch electromagnetic valve, the 5th switch electromagnetic valve, the 6th switch electromagnetic valve and the 7th One end pipeline connection of magnetic valve, the 4th switch electromagnetic valve, the 5th switch electromagnetic valve, the 6th switch electromagnetic valve and the 7th switch electricity The other end of magnet valve is electric with the 8th switch electromagnetic valve, the 9th switch electromagnetic valve, the tenth switch electromagnetic valve and the 11st switch successively One end pipeline connection of magnet valve, the 4th switch electromagnetic valve, the 5th switch electromagnetic valve, the 6th switch electromagnetic valve and the 7th switch electromagnetism The other end of valve successively with first pressure sensor, second pressure sensor, the 3rd pressure sensor and the 4th pressure sensor Pipeline is connected, and the 8th switch electromagnetic valve, the 9th switch electromagnetic valve, the tenth switch electromagnetic valve are another with the 11st switch electromagnetic valve No. 4 oil-out pipelines of end and lubricating cup are connected.
The 8th switch electromagnetic valve described in technical scheme, the 9th switch electromagnetic valve, the tenth switch electromagnetic valve and the 11st Switch electromagnetic valve is that the normally closed switch magnetic valve closed in the event of a power failure is opened in the case of energization.
Electronic control unit described in technical scheme and the master cylinder output unit with lubricating cup and No. 1 hydraulic control list First electric wire is connected：Described electronic control unit and described motor, pedal displacement sensor, linear voltage regulation valve, first Switch electromagnetic valve, second switch magnetic valve, the 3rd switch electromagnetic valve, high pressure accumulator, the 4th switch electromagnetic valve, the 5th switch electricity Magnet valve, the 6th switch electromagnetic valve, the 7th switch electromagnetic valve, first pressure sensor, second pressure sensor, the 3rd pressure sensing Device is electrically connected with the 4th pressure sensor；
Described electronic control unit and the master cylinder output unit with lubricating cup are connected with No. 2 hydraulic control unit electric wires Refer to：Described electronic control unit and described motor, pedal displacement sensor, linear voltage regulation valve, first switch magnetic valve, Second switch magnetic valve, the 3rd switch electromagnetic valve, high pressure accumulator, the 4th switch electromagnetic valve, the 5th switch electromagnetic valve, the 6th open Powered-down magnet valve, the 7th switch electromagnetic valve, first pressure sensor, second pressure sensor, the 3rd pressure sensor, the 4th pressure Sensor, the 8th switch electromagnetic valve, the 9th switch electromagnetic valve, the tenth switch electromagnetic valve are electrically connected with the 11st switch electromagnetic valve.
Compared with prior art the beneficial effects of the invention are as follows：
1. it is of the present invention that electronics can both be utilized with the line control brake system of parallel control simultaneously based on time-shared serial Control unit (ECU), hydraulic control unit (HCU) realize line traffic control hydraulic braking, again can be in the case where system cut-off fails Ensure traffic safety using pedal, master cylinder, switch electromagnetic valve generation braking.
2. it is of the present invention that orthodox car is eliminated with the line control brake system of parallel control simultaneously based on time-shared serial Vacuum booster pump in brake fluid system, reduces volume, is that the general arrangement of vehicle saves space.
3. it is of the present invention can be switched using two with the line control brake system of parallel control simultaneously based on time-shared serial Magnetic valve realizes the full decoupling of master cylinder, the line control brake system based on time-shared serial with parallel control simultaneously in braking procedure The vibration of generation is passed less than the comfort level that on driver pedal, improve driving.
4. it is of the present invention that pedal sense mould is utilized with the line control brake system of parallel control simultaneously based on time-shared serial Intending device can realize that pedal sense is simulated, truer than pedal sense by the poor generation of master cylinder push rod piston cross-section area.
5. the line control brake system proposition based on time-shared serial and parallel control simultaneously of the present invention both can be with timesharing Serial Control again can be while parallel control, for later braking producer provides 2 kinds of designs, meets the need of different clients Ask.
6. it is of the present invention based on time-shared serial with simultaneously parallel control line control brake system can by motor- Pump, the fast run-up pressure of high pressure accumulator active, can carry out the accurate adjustment of pressure using linear voltage regulation valve again.
7. the line control brake system based on time-shared serial and parallel control simultaneously of the present invention is to motor-pump, high pressure The requirement of accumulator reduces cost far below the scheme of motor positive and inverse.
Brief description of the drawings
The present invention is further illustrated below in conjunction with the accompanying drawings：
Fig. 1 is the schematic diagram of the line control brake system structure composition based on time-shared serial control of the present invention；
Fig. 2 is the conventional brake fluid path figure of the line control brake system based on time-shared serial control of the present invention；
Fig. 3 be it is of the present invention based on time-shared serial control line control brake system ABS operating modes under be pressurized fluid path figure；
Fig. 4 be it is of the present invention based on time-shared serial control line control brake system ABS operating modes under pressurize fluid path figure；
Fig. 5 be it is of the present invention based on time-shared serial control line control brake system ABS operating modes under depressurize fluid path figure；
Fig. 6 be it is of the present invention based on time-shared serial control line control brake system TCS operating modes under left rear wheel supercharging Fluid path figure；
Fig. 7 be it is of the present invention based on time-shared serial control line control brake system TCS operating modes under left rear wheel pressurize Fluid path figure；
Fig. 8 be it is of the present invention based on time-shared serial control line control brake system TCS operating modes under left rear wheel decompression Fluid path figure；
Fig. 9 be the line control brake system based on time-shared serial control of the present invention TCS operating modes under the supercharging of each wheel, Pressurize fluid path figure is the fluid path figure of left back wheel cylinder braking supercharging, the supercharging of off-front wheel cylinder, left front wheel cylinder pressurize and off hind wheel cylinder pressurize；
Figure 10 be it is of the present invention based on time-shared serial control line control brake system ESC operating modes under left rear wheel supercharging Fluid path figure；
Figure 11 be the line control brake system based on time-shared serial control of the present invention ESC operating modes under each wheel increase Pressure, pressurize fluid path figure are that left back braked wheel implements braking supercharging, the supercharging of off-front wheel cylinder, left front wheel cylinder pressurize and off hind wheel cylinder pressurize Fluid path figure；
Figure 12 be it is of the present invention based on time-shared serial control line control brake system ACC operating modes under be pressurized fluid path Figure；
Figure 13 be it is of the present invention based on time-shared serial control line control brake system ACC operating modes under pressurize fluid path Figure；
Figure 14 be the line control brake system based on time-shared serial control of the present invention ACC operating modes under depressurize fluid path Figure；
Figure 15 be it is of the present invention based on time-shared serial control line control brake system AEB operating modes under be pressurized fluid path Figure；
Figure 16 be it is of the present invention based on time-shared serial control line control brake system power-off failure protected mode under Supercharging fluid path figure；
Figure 17 be it is of the present invention based on time-shared serial control line control brake system power-off failure protected mode under Decompression fluid path figure；
Figure 18 is the schematic diagram of the structure composition of the line control brake system based on parallel control of the present invention；
Figure 19 is the conventional brake fluid path figure of the line control brake system based on parallel control of the present invention；
Figure 20 be the line control brake system based on parallel control of the present invention ABS operating modes under be pressurized fluid path figure；
Figure 21 be the line control brake system based on parallel control of the present invention ABS operating modes under pressurize fluid path figure；
Depressurize fluid path figure under the ABS operating modes of Figure 22 line control brake systems based on parallel control of the present invention；
Figure 23 be the line control brake system based on parallel control of the present invention TCS operating modes under left rear wheel boost fluid road Figure；
Figure 24 be the line control brake system based on parallel control of the present invention TCS operating modes under left rear wheel pressurize fluid path Figure；
Figure 25 be the line control brake system based on parallel control of the present invention TCS operating modes under left rear wheel decompression fluid path Figure；
Figure 26 be the line control brake system based on parallel control of the present invention TCS operating modes under the supercharging of each wheel, protect Pressure, decompression fluid path figure are the fluid path of left back wheel cylinder braking supercharging, the supercharging of off-front wheel cylinder, left front wheel cylinder pressurize and the decompression of off hind wheel cylinder Figure；
Figure 27 be the line control brake system based on parallel control of the present invention ESC operating modes under left rear wheel boost fluid road Figure；
Figure 28 be the line control brake system based on parallel control of the present invention ESC operating modes under the supercharging of each wheel, protect Pressure, decompression fluid path figure are left back wheel cylinder braking pressurization, the supercharging of off-front wheel cylinder, left front wheel cylinder pressurize and the decompression of off hind wheel cylinder Fluid path figure；
Figure 29 be the line control brake system based on parallel control of the present invention ACC operating modes under be pressurized fluid path figure.
Figure 30 be the line control brake system based on parallel control of the present invention ACC operating modes under pressurize fluid path figure；
Figure 31 be the line control brake system based on parallel control of the present invention ACC operating modes under depressurize fluid path figure；
Figure 32 be the line control brake system based on parallel control of the present invention AEB operating modes under be pressurized fluid path figure；
Figure 33 is the supercharging fluid path figure of the line control brake system based on parallel control of the present invention；
Figure 34 is subtracting under the power-off failure protected mode of the line control brake system based on parallel control of the present invention Hydraulic fluid road figure；
In figure：A. the master cylinder output unit with lubricating cup, B1.1 hydraulic control units (HCU), B2.2 hydraulic pressure controls Unit (HCU) processed, C. electronic control units (ECU), D. wheel drags, 1. brake pedal, 2. pedal displacement sensor, 3. pushes away Bar, 4. master cylinder housing, 5. master cylinder second piston, 6. the chamber return spring of master cylinder II, 7. master cylinder first piston, 8. the chamber return of master cylinder I Spring, 9. master cylinder, 10. lubricating cup, 11. pedal sense simulators, 12. pedal sense simulator pistons, 13. pedal sense moulds Intend device spring, 14. motors, No. 15. pumps, 16. No. two pumps, 17. linear voltage regulation valves, 18. first switch magnetic valves, 19. second Switch electromagnetic valve, 20. the 3rd switch electromagnetic valves, 21. high pressure accumulators, 22. the 4th switch electromagnetic valves, 23. the 5th switch electromagnetism Valve, 24. the 6th switch electromagnetic valves, 25. the 7th switch electromagnetic valves, 26. first pressure sensors, 27. second pressure sensors, 28. the 3rd pressure sensors, 29. the 4th pressure sensors, 30. electronic control units (ECU), 31. pedal sense simulator shells, 32. the 8th switch electromagnetic valves, 33. the 9th switch electromagnetic valves, 34. the tenth switch electromagnetic valves, 35. the 11st switch electromagnetic valves.
Specific embodiment
The present invention is explained in detail below in conjunction with the accompanying drawings：
Refering to Fig. 1 and Figure 18, described includes being based on based on time-shared serial with the line control brake system of parallel control simultaneously The line control brake system of time-shared serial control and the line control brake system based on parallel control simultaneously；Based on time-shared serial control Line control brake system includes the master cylinder output unit A with lubricating cup, No. 1 hydraulic control unit (HCU) B1, electronic control unit (ECU) C and wheel drag D；It is single that line control brake system based on parallel control simultaneously includes that the master cylinder with lubricating cup is exported First A, No. 2 hydraulic control unit (HCU) B2, electronic control unit (ECU) C and wheel drag D.I.e. based on time-shared serial control Line control brake system with based on simultaneously parallel control line control brake system part except No. 1 hydraulic control unit (HCU) B1 is different outer from No. 2 hydraulic control unit (HCU) B2, and other several parts are identical.
The described master cylinder output unit A with lubricating cup is by brake pedal 1, pedal displacement sensor 2, push rod 3, system Dynamic master cylinder 9 (master cylinder housing 4, master cylinder second piston 5, the chamber return spring 6 of master cylinder II, master cylinder first piston 7, the chamber return bullet of master cylinder I Spring 8), lubricating cup 10, pedal sense simulator 11 (pedal sense simulator piston 12, pedal sense simulator spring 13), the 3rd Switch electromagnetic valve 20 is constituted；
No. 2 oil-outs on described lubricating cup 10 and No. 3 oil-outs successively with master cylinder housing 4 in master cylinder 9 on two Oil inlet pipeline is connected, one end of the chamber oil-out of master cylinder II and the 3rd switch electromagnetic valve 20 in master cylinder 9 on master cylinder housing 4 Pipeline is connected, and the other end of the 3rd switch electromagnetic valve 20 is connected with the left end pipeline of pedal sense simulator 11；In master cylinder 9 Push rod 3 right-hand member connection brake pedal 1, pedal displacement sensor 2 be arranged on brake pedal 1 on.
No. 1 described hydraulic control unit (HCU) B1 includes motor 14, a pump 15, two pump 16, linear voltage regulation valve 17th, first switch magnetic valve 18, second switch magnetic valve 19, high pressure accumulator 21, the switch electricity of the 4th switch electromagnetic valve the 22, the 5th Magnet valve 23, the 6th switch electromagnetic valve 24, the 7th switch electromagnetic valve 25, first pressure sensor 26, second pressure sensor 27, Three pressure sensors 28, the 4th pressure sensor 29；
Wherein：Linear voltage regulation valve 17 is normally close valve, and first switch magnetic valve 18, second switch magnetic valve the 19, the 4th are switched Magnetic valve 22, the 5th switch electromagnetic valve 23, the 6th switch electromagnetic valve 24, the 7th switch electromagnetic valve 25 are normal open switch magnetic valve, Closed in the case of energization, opened in the event of a power failure；3rd switch electromagnetic valve 20 is normally closed switch magnetic valve, is being powered In the case of open, close in the event of a power failure.
No. 2 hydraulic control unit (HCU) B2 in the described line control brake system based on parallel control simultaneously are except bag Include the pump 15, two of a motor 14, pump 16, linear voltage regulation valve 17, the in the line control brake system based on time-shared serial control One switch electromagnetic valve 18, second switch magnetic valve 19, high pressure accumulator 21, the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23rd, the 6th switch electromagnetic valve 24 and the 7th switch electromagnetic valve 25, first pressure sensor 26, second pressure sensor the 27, the 3rd Pressure sensor 28, the 4th pressure sensor 29, also open including the 8th switch electromagnetic valve 32, the 9th switch electromagnetic valve the 33, the tenth The switch electromagnetic valve 35 of powered-down magnet valve 34 and the 11st；8th switch electromagnetic valve 32, the switch electromagnetism of the 9th switch electromagnetic valve the 33, the tenth Valve 34, the 11st switch electromagnetic valve 35 are normally closed switch magnetic valve, are opened in the case of energization, are closed in the event of a power failure Close.
Described wheel drag D be include left rear wheel brake RL, off-front wheel brake FR, near front wheel brake FL, Off hind wheel brake RR；Left rear wheel brake RL, off-front wheel brake FR, near front wheel brake FL, off hind wheel brake RR are Disk brake (is not Qiang Zhiyaoqiud, or drum brake) herein.
Described master cylinder 9 includes master cylinder housing 4, master cylinder first piston 7, master cylinder second piston 5, the chamber return of master cylinder I Spring 8, the chamber return spring 6 of master cylinder II and push rod 3.
Described master cylinder first piston 7 is periodically installed in master cylinder housing 4 with master cylinder second piston 5, and master cylinder first is lived The chamber of master cylinder II is formed between plug 7 and master cylinder second piston 5, a two ends is provided with the chamber of master cylinder II and is lived with master cylinder first respectively The chamber return spring 6 of master cylinder II that plug 7 is connected with master cylinder second piston 5, master cylinder first piston 7 is formed with the left end of master cylinder housing 4 The chamber of master cylinder I, a two ends is provided with the chamber of master cylinder I and is connected with master cylinder first piston 7 and the left end wall inwall of master cylinder housing 4 respectively The chamber return spring 8 of master cylinder I, the right-hand member of master cylinder second piston 5 and master cylinder housing 4 forms the chamber of master cylinder III, master cylinder second piston 5 Right side connects the left end of a push rod 3, and another (right side) end connection brake pedal 1 of push rod 3 is provided with pedal on brake pedal 1 Displacement transducer 2, two oil inlets and two oil-outs, two oil-feeds are respectively arranged with the chamber of master cylinder I and the master cylinder housing 4 in the chamber of master cylinder II Mouthful be connected with lubricating cup 10, the chamber oil-out of master cylinder I is connected with one end pipeline of first switch magnetic valve 18, the chamber oil-out of master cylinder II with Second switch magnetic valve 19 is connected with one end pipeline of the 3rd switch electromagnetic valve 20, the other end of the 3rd switch electromagnetic valve 20 with step on The pipeline of plate sense simulator 11 is connected, the other end of first switch magnetic valve 18 and a pump 15, No. two pumps 16, linear voltage regulation valves 17th, high pressure accumulator 21, second switch magnetic valve 19, the 4th switch electromagnetic valve 22, the switch electricity of the 5th switch electromagnetic valve the 23, the 6th Magnet valve 24 is connected with one end of the 7th switch electromagnetic valve 25, second switch magnetic valve 19 respectively with 15, No. two pumps 16, line of a pump Property pressure regulator valve 17, high pressure accumulator 21, the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23, the 6th switch electromagnetic valve 24 with One end of 7th switch electromagnetic valve 25 is connected, high pressure accumulator 21 respectively with 15, No. two pumps 16 of a pump, linear voltage regulation valve 17, 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23, the 6th switch electromagnetic valve 24, one end pipeline of the 7th switch electromagnetic valve 25 Connection, 15, No. two oil inlets of pump 16 of a pump are connected with one end pipeline of lubricating cup 10, linear voltage regulation valve 17；A number pump 15, two The oil-out of number pump 16 other end respectively with linear voltage regulation valve 17, high pressure accumulator 21, the 4th switch electromagnetic valve the 22, the 5th are opened Powered-down magnet valve 23, the 6th switch electromagnetic valve 24, one end pipeline connection of the 7th switch electromagnetic valve 25, the 4th switch electromagnetic valve 22 The other end is connected with left back brake RL, the pipeline of first pressure sensor 26 respectively, the other end point of the 5th switch electromagnetic valve 23 Be not connected with right front brake FR, the pipeline of second pressure sensor 27, the other end of the 6th switch electromagnetic valve 24 respectively with it is left front Brake FL, the connection of the pipeline of the 3rd pressure sensor 28, the other end of the 7th switch electromagnetic valve 25 respectively with right rear brake RR, The pipeline of 4th pressure sensor 29 is connected.
In No. 2 hydraulic control unit (HCU) B2 of the described line control brake system based on parallel control simultaneously：
The other end of the 4th switch electromagnetic valve 22 is switched with left back brake RL, first pressure sensor the 26, the 8th respectively One end pipeline connection of magnetic valve 32, the other end of the 5th switch electromagnetic valve 23 is passed with right front brake FR, second pressure respectively One end pipeline connection of sensor 27, the 9th switch electromagnetic valve 33, the other end of the 6th switch electromagnetic valve 24 respectively with left front braking Device FL, the 3rd pressure sensor 28, one end pipeline connection of the tenth switch electromagnetic valve 34, the other end of the 7th switch electromagnetic valve 25 One end pipeline with right rear brake RR, the 4th pressure sensor 29, the 11st switch electromagnetic valve 35 is connected respectively；8th switch The other end of magnetic valve 32 is connected with the pipeline of lubricating cup 10, and the other end of the 9th switch electromagnetic valve 33 is connected with the pipeline of lubricating cup 10, and the tenth opens The other end of powered-down magnet valve 34 is connected with the pipeline of lubricating cup 10, and the other end of the 11st switch electromagnetic valve 35 is connected with the pipeline of lubricating cup 10, its The connection of hydraulic control unit (HCU) B of the annexation of his parts and the line control brake system based on time-shared serial control Relation is identical.
Described pedal sense simulator 11 includes pedal sense simulator shell 31, pedal sense simulator piston 12, steps on Plate sense simulator spring 13；
Described pedal sense simulator piston 12 is arranged in pedal sense simulator shell 31, pedal sense simulator bullet Spring 13 is arranged between pedal sense simulator piston 12 and the right-hand member wall of pedal sense simulator shell 31, i.e. pedal sense simulator The left and right two ends of spring 13 respectively with the left side of pedal sense simulator piston 12 and the right-hand member wall of pedal sense simulator shell 31 Left inside wall contact connection, pedal sense simulator shell 31 another (left side) hold be connected with brake piping.
The electronic control unit C of the described line control brake system based on time-shared serial control and described motor 14, height Pressure accumulator 21, pedal displacement sensor 2, linear voltage regulation valve 17, first switch magnetic valve 18, second switch magnetic valve 19, the Three switch electromagnetic valves 20, high pressure accumulator 21, the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23, the 6th switch electromagnetic valve 24th, the 7th switch electromagnetic valve 25, first pressure sensor 26, second pressure sensor 27, the 3rd pressure sensor the 28, the 4th are pressed Force snesor 29 is electrically connected；Electronic control unit C and the described motor 14 of the line control brake system based on parallel control simultaneously, High pressure accumulator 21, pedal displacement sensor 2, linear voltage regulation valve 17, first switch magnetic valve 18, second switch magnetic valve 19, 3rd switch electromagnetic valve 20, high pressure accumulator 21, the 4th switch electromagnetic valve 22, the switch electromagnetism of the 5th switch electromagnetic valve the 23, the 6th Valve 24, the 7th switch electromagnetic valve 25, first pressure sensor 26, second pressure sensor 27, the 3rd pressure sensor the 28, the 4th Pressure sensor 29, the 8th switch electromagnetic valve 32, the 9th switch electromagnetic valve 33, the switch electricity of the tenth switch electromagnetic valve the 34, the 11st Magnet valve 35 is electrically connected.The electronic control unit C of the line control brake system i.e. based on parallel control simultaneously increased and the 8th switch Magnetic valve 32, the 9th switch electromagnetic valve 33, the tenth switch electromagnetic valve 34, the 11st switch electromagnetic valve 35 are electrically connected, other parts Electrical connection with based on time-shared serial control line control brake system electronic control unit C it is identical.
The line control brake system course of work based on time-shared serial control：
1. conventional brake
Refering to Fig. 2, after driver's brake pedal 1, pedal displacement sensor 2 detects displacement signal, and this is believed Number send electronic control unit 30 (ECU) to, electronic control unit 30 (ECU) provides line traffic control hydraulic system B1 by calculating analysis Order is performed with the master cylinder output unit A with lubricating cup.3rd switch electromagnetic valve 20 is powered and opens, and brake fluid is from master cylinder II chamber enters generation driver pedal in pedal sense simulator 11 and feels by the 3rd switch electromagnetic valve 20.First switch electromagnetism Valve 18, second switch magnetic valve 19 are powered and close, and realize master cylinder full decoupling.The switch electricity of 4th switch electromagnetic valve the 22, the 5th Magnet valve 23, the power-off of the 6th switch electromagnetic valve 24, the 7th switch electromagnetic valve 25 are opened, and high pressure accumulator 21 works, high pressure accumulator 21 brake fluid switchs electromagnetism by the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23, the 6th switch electromagnetic valve the 24, the 7th Valve 25 enters in each wheel cylinder, eliminates the gap of brake disc and friction plate, and now motor 14 is rotated and drives 15, No. two pumps 16 of a pump Work, the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23, the 6th switch electromagnetic valve are passed through by the brake fluid in lubricating cup 10 24th, the 7th switch electromagnetic valve 25 produces braking in pumping into wheel cylinder, and unnecessary fluid will be discharged by linear voltage regulation valve 17.Liquid Pressure stream is as shown in thick line in Fig. 2.
2.ABS is braked
After driver's brake pedal 1, pedal displacement sensor 2 detects displacement signal, and this signal is sent to Electronic control unit 30 (ECU), electronic control unit 30 (ECU) provides line traffic control hydraulic system B1 with band lubricating cup by calculating analysis Master cylinder output unit A perform order.3rd switch electromagnetic valve 20 is powered and opens, and brake fluid passes through from the chamber of master cylinder II 3rd switch electromagnetic valve 20 enters generation driver pedal in pedal sense simulator 11 and feels.First switch magnetic valve 18, Two switch electromagnetic valve 19 is powered and closes, and realizes master cylinder full decoupling.4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23, The power-off of 6th switch electromagnetic valve 24, the 7th switch electromagnetic valve 25 is opened, and high pressure accumulator 21 works, the braking of high pressure accumulator 21 Liquid is entered by the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23, the 6th switch electromagnetic valve 24, the 7th switch electromagnetic valve 25 In each wheel cylinder, the gap of brake disc and friction plate is eliminated, now motor 14 is rotated and drives 15, No. two pumps 16 of a pump to work, will Brake fluid in lubricating cup 10 is opened by the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23, the 6th switch electromagnetic valve the 24, the 7th Powered-down magnet valve 25 produces braking in pumping into wheel cylinder.When ECU judges wheel lock up, triggering ABS controls.
Pressurization stages：
Refering to Fig. 3, first switch magnetic valve 18, second switch magnetic valve 19 are powered and close, the 4th switch electromagnetic valve 22, the Five switch electromagnetic valves 23, the power-off of the 6th switch electromagnetic valve 24, the 7th switch electromagnetic valve 25 are opened, the 8th switch electromagnetic valve 22, the Nine switch electromagnetic valves 23, the power-off of the tenth switch electromagnetic valve 24, the 11st switch electromagnetic valve 25 are closed, and high pressure accumulator 21 works, The brake fluid of high pressure accumulator 21 is by the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23, the 6th switch electromagnetic valve 24, the Seven switch electromagnetic valve 25 enters in each wheel cylinder, eliminates the gap of brake disc and friction plate, and now motor 14 is rotated and drives a pump 15th, No. two pumps 16 are worked, and oil can brake fluid is switched into electricity by the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve the 23, the 6th Magnet valve 24, the 7th switch electromagnetic valve 25 make wheel cylinder brake pressure rise generation braking in pumping into wheel cylinder.Thick line in flow of pressurized such as Fig. 3 It is shown.
Packing stage：
Refering to Fig. 4, the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23, the switch electricity of the 6th switch electromagnetic valve the 24, the 7th Magnet valve 25 is powered and closes, and the fluid in four wheel cylinders keeps constant.Flow of pressurized is as shown in thick line in Fig. 4.
Decompression phase：
Refering to Fig. 5, the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23, the switch electricity of the 6th switch electromagnetic valve the 24, the 7th The power-off of magnet valve 25 is opened, and brake fluid is from each wheel cylinder by the 4th switch electromagnetic valve 22, the switch electricity of the 5th switch electromagnetic valve the 23, the 6th Magnet valve 24, the 7th switch electromagnetic valve 25, linear voltage regulation valve 10 flow back into lubricating cup, realize each wheel cylinder decompression.It is thick in flow of pressurized such as Fig. 5 Shown in line.
3.TCS operating conditions
In wheel driving process, electronic control unit 30 (ECU) judges wheel-slip (by taking left rear wheel as an example), triggering TCS is controlled.Now, it is not necessary to step on brake pedal, thus pedal sense simulator 11 does not work.First switch magnetic valve 18, second Switch electromagnetic valve 19 is powered and closes, and realizes master cylinder full decoupling.The power-off of 4th switch electromagnetic valve 22 is opened, high pressure accumulator 21 Work, the brake fluid of high pressure accumulator 21 is entered in left back wheel cylinder by the 4th switch electromagnetic valve 22, eliminates brake disc with friction The gap of piece, the now rotation of motor 14 drives 15, No. two pumps 16 of a pump to work, and the brake fluid in lubricating cup 10 is opened by the 4th Powered-down magnet valve 22 pumps into and produce in left back wheel cylinder braking (other wheel cylinders can only realize supercharging or pressurize, it is impossible to realize decompression, such as Really wheel cylinder other each wheels in decompression process can only realize decompression or pressurize, it is impossible to realize supercharging).
Pressurization stages：
Refering to Fig. 6, first switch magnetic valve 18, second switch magnetic valve 19 are powered and close, and the 4th switch electromagnetic valve 22 breaks Electric-opening, high pressure accumulator 21 works, and the brake fluid of high pressure accumulator 21 enters left back wheel cylinder by the 4th switch electromagnetic valve 22 In, the gap of brake disc and friction plate is eliminated, now motor 14 is rotated and drives 15, No. two pumps 16 of a pump to work, by oil can system Hydrodynamic produces braking in pumping into left back wheel cylinder by the 4th switch electromagnetic valve 22.Flow of pressurized is as shown in thick line in Fig. 6.
Packing stage：
Refering to Fig. 7, the 4th switch electromagnetic valve 22 is powered and closes, and the oil pressure in left back wheel cylinder keeps constant.Flow of pressurized As shown in thick line in Fig. 7.
Decompression phase：
Refering to Fig. 8, the 4th switch electromagnetic valve 22 power-off open, brake fluid from each wheel cylinder by the 4th switch electromagnetic valve 22, Linear voltage regulation valve 10 flow back into lubricating cup, realizes each wheel cylinder decompression.Flow of pressurized is as shown in thick line in Fig. 8.
Refering to Fig. 9, left back wheel cylinder brakes pressurization, and off-front wheel cylinder supercharging, left front wheel cylinder pressurize, off hind wheel cylinder pressurize is same When the situation (other situations are not just enumerated, and principle is all identical) that exists, now the 4th switch electromagnetic valve the 22, the 5th switch The power-off of magnetic valve 23 is opened, and the 6th switch electromagnetic valve 24, the 7th switch electromagnetic valve 25 is powered and closes.Thick line in flow of pressurized such as Fig. 9 It is shown.
4.ESC operating conditions
Refering to Figure 10, in vehicle travel process, when ECU judges vehicle unstability, triggering ESC controls are not (with to the left As a example by foot is turned to：Need that rear left wheel is implemented to brake, vehicle is kept stabilization).Need not now step on brake pedal, therefore pedal Sense simulator does not work.First switch magnetic valve 18, second switch magnetic valve 19 are powered and close, and realize master cylinder complete solution Coupling.The power-off of 4th switch electromagnetic valve 22 is opened, and high pressure accumulator 21 works, and the brake fluid of high pressure accumulator 21 is by the 4th switch Magnetic valve 22 enters in left back wheel cylinder, eliminates the gap of brake disc and friction plate, and now motor 14 is rotated and drives a pump 15, two Number pump 16 is worked, and braking (other are produced during the brake fluid in lubricating cup 10 is pumped into left back wheel cylinder by the 4th switch electromagnetic valve 22 Wheel cylinder can only realize supercharging or pressurize, it is impossible to realize decompression, if other each wheels can only be real in decompression process for a wheel cylinder Now decompression or pressurize, it is impossible to realize supercharging).Flow of pressurized is as shown in thick line in Figure 10.
Refering to Figure 11, braking pressurization is being implemented to left back braked wheel, off-front wheel cylinder supercharging, left front wheel cylinder pressurize is right The simultaneous situation of rear wheel cylinder pressurize (other situation operation principles are same, just do not enumerate herein), now the 4th The power-off of switch electromagnetic valve 22, the 5th switch electromagnetic valve 23 is opened, and the 6th switch electromagnetic valve 24, the 7th switch electromagnetic valve 25 is powered and closes Close.Flow of pressurized is as shown in thick line in Figure 11.
5.ACC operating conditions
When being run under ACC mode, when sensor finds nearer with front truck vehicle distances, triggering ACC work, now, Brake pedal need not be stepped on, therefore pedal sense simulator does not work.First switch magnetic valve 18, second switch magnetic valve 19 are powered Close, the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23, the 6th switch electromagnetic valve 24, the 7th switch electromagnetic valve 25 are powered off Open, high pressure accumulator 21 works, the brake fluid of high pressure accumulator 21 passes through the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23rd, the 6th switch electromagnetic valve 24, the 7th switch electromagnetic valve 25 enters in each wheel cylinder, eliminates the gap of brake disc and friction plate, this When motor 14 rotate drive 15, No. two pumps 16 of a pump work, oil can brake fluid is opened by the 4th switch electromagnetic valve the 22, the 5th Powered-down magnet valve 23, the 6th switch electromagnetic valve 24, the 7th switch electromagnetic valve 25 produce braking in pumping into wheel cylinder.
Pressurization stages：
Refering to Figure 12, first switch magnetic valve 18, second switch magnetic valve 19 are powered and close, the 4th switch electromagnetic valve 22, 5th switch electromagnetic valve 23, the power-off of the 6th switch electromagnetic valve 24, the 7th switch electromagnetic valve 25 are opened, and high pressure accumulator 21 works, The brake fluid of high pressure accumulator 21 is by the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23, the 6th switch electromagnetic valve 24, the Seven switch electromagnetic valve 25 enters in each wheel cylinder, eliminates the gap of brake disc and friction plate, and now motor 14 is rotated and drives a pump 15th, No. two pumps 16 are worked, and oil can brake fluid is switched into electricity by the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve the 23, the 6th Magnet valve 24, the 7th switch electromagnetic valve 25 make wheel cylinder brake pressure rise generation braking in pumping into wheel cylinder.It is thick in flow of pressurized such as Figure 12 Shown in line.
Packing stage：
Refering to Figure 13, the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23, the 6th switch electromagnetic valve the 24, the 7th are switched Magnetic valve 25 is powered and closes, and the fluid in four wheel cylinders keeps constant.Flow of pressurized is as shown in thick line in Figure 13.
Decompression phase：
Refering to Figure 14, the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23, the 6th switch electromagnetic valve the 24, the 7th are switched The power-off of magnetic valve 25 is opened, and brake fluid is switched from each wheel cylinder by the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve the 23, the 6th Magnetic valve 24, the 7th switch electromagnetic valve 25, linear voltage regulation valve 17 flow back into lubricating cup 10, realize each wheel cylinder decompression.Flow of pressurized is as schemed In 14 shown in thick line.
6.AEB operating modes are braked
Refering to Figure 15, the system can quickly realize automobile in the case that automobile will be collided identifying to brakes Braking.When recognizing the need for quickly realizing automobile brake, electronic control unit 30 (ECU) provides line traffic control liquid by calculating analysis The pressure system B1 and master cylinder output unit A with lubricating cup performs order.Now, it is not necessary to step on brake pedal, thus pedal sense Simulator 11 does not work.First switch magnetic valve 18, second switch magnetic valve 19 are powered and close, and realize master cylinder full decoupling. 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23, the power-off of the 6th switch electromagnetic valve 24, the 7th switch electromagnetic valve 25 are opened, High pressure accumulator 21 works, and the brake fluid of high pressure accumulator 21 is by the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23, the Six switch electromagnetic valves 24, the 7th switch electromagnetic valve 25 enter in each wheel cylinder, eliminate the gap of brake disc and friction plate, now motor 14 rotate drive 15, No. two pumps 16 of a number pump is worked, and the brake fluid in lubricating cup 10 is opened by the 4th switch electromagnetic valve the 22, the 5th Powered-down magnet valve 23, the 6th switch electromagnetic valve 24, the 7th switch electromagnetic valve 25 produce braking in pumping into wheel cylinder.In flow of pressurized such as Figure 15 Shown in thick line.
7. fail safe
When the unexpected power-off failure of line control system, this system can still carry out brake hard, now linear voltage regulation valve 17, The power-off of three switch electromagnetic valve 20 closing, first switch magnetic valve 18, second switch magnetic valve 19, the 4th switch electromagnetic valve 22, the Five switch electromagnetic valves 23, the power-off of the 6th switch electromagnetic valve 24, the 7th switch electromagnetic valve 25 are opened.
1) the brake pedal stage is stepped in failure braking：
Refering to Figure 16, brake pedal 1, the brake fluid in I chamber, II chamber is by first switch magnetic valve in master cylinder 9 18th, second switch magnetic valve 19, the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23, the 6th switch electromagnetic valve the 24, the 7th are opened Powered-down magnet valve 25 enters four wheel cylinders and implements failure braking.Flow of pressurized is as shown in thick line in Figure 16.
2) the failure braking loose brake pedal stage：
Refering to Figure 17, loosen the brake, each wheel cylinder brake fluid passes through the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23rd, the 6th switch electromagnetic valve 24, the 7th switch electromagnetic valve 25, first switch magnetic valve 18, second switch magnetic valve 19 are returned to Master cylinder 9, in lubricating cup 10 is returned to, realizes failure decompression.Flow of pressurized is as shown in thick line in Figure 17.
The line control brake system course of work based on parallel control simultaneously：
1. conventional brake
Refering to Figure 19, after driver's brake pedal 1, pedal displacement sensor 2 detects displacement signal, and this is believed Number send electronic control unit 30 (ECU) to, electronic control unit 30 (ECU) provides line traffic control hydraulic system B2 by calculating analysis Order is performed with the master cylinder output unit A with lubricating cup.3rd switch electromagnetic valve 20 is powered and opens, and brake fluid is from master cylinder II chamber enters generation driver pedal in pedal sense simulator 11 and feels by the 3rd switch electromagnetic valve 20.First switch electromagnetism Valve 18, second switch magnetic valve 19 are powered and close, and realize master cylinder full decoupling.The switch electricity of 4th switch electromagnetic valve the 22, the 5th Magnet valve 23, the power-off of the 6th switch electromagnetic valve 24, the 7th switch electromagnetic valve 25 are opened, the switch electricity of the 8th switch electromagnetic valve the 32, the 9th Magnet valve 33, the power-off of the tenth switch electromagnetic valve 34, the 11st switch electromagnetic valve 35 are closed, and high pressure accumulator 21 works, high-voltage energy-storage The brake fluid of device 21 switchs electricity by the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23, the 6th switch electromagnetic valve the 24, the 7th Magnet valve 25 enters in each wheel cylinder, eliminates the gap of brake disc and friction plate, and now motor 14 is rotated and drives 15, No. two pumps of a pump 16 work, the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23, the 6th switch electromagnetic valve are passed through by the brake fluid in lubricating cup 10 24th, the 7th switch electromagnetic valve 25 produces braking in pumping into wheel cylinder, and unnecessary fluid flows back to lubricating cup 10 through pressure regulator valve 17.Flow of pressurized is as schemed In 19 shown in thick line.
2.ABS is braked
After driver's brake pedal 1, pedal displacement sensor 2 detects displacement signal, and this signal is sent to Electronic control unit 30 (ECU), electronic control unit 30 (ECU) provides line traffic control hydraulic system B with band lubricating cup by calculating analysis Master cylinder output unit A perform order.3rd switch electromagnetic valve 20 is powered and opens, and brake fluid passes through from the chamber of master cylinder II 3rd switch electromagnetic valve 20 enters generation driver pedal in pedal sense simulator and feels.First switch magnetic valve 18, second Switch electromagnetic valve 19 is powered and closes, and realizes master cylinder full decoupling.4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23, The power-off of six switch electromagnetic valves 24, the 7th switch electromagnetic valve 25 is opened, the 8th switch electromagnetic valve 32, the 9th switch electromagnetic valve 33, the The power-off of ten switch electromagnetic valves 34, the 11st switch electromagnetic valve 35 is closed, and high pressure accumulator 21 works, the braking of high pressure accumulator 21 Liquid is entered by the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23, the 6th switch electromagnetic valve 24, the 7th switch electromagnetic valve 25 In each wheel cylinder, the gap of brake disc and friction plate is eliminated, now motor 14 is rotated and drives 15, No. two pumps 16 of a pump to work, will Brake fluid in lubricating cup 10 is opened by the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23, the 6th switch electromagnetic valve the 24, the 7th Powered-down magnet valve 25 produces braking in pumping into wheel cylinder.When ECU judges wheel lock up, triggering ABS controls.
Pressurization stages：
Refering to Figure 20, first switch magnetic valve 18, second switch magnetic valve 19 are powered and close, the 4th switch electromagnetic valve 22, 5th switch electromagnetic valve 23, the power-off of the 6th switch electromagnetic valve 24, the 7th switch electromagnetic valve 25 are opened, the 8th switch electromagnetic valve 32, 9th switch electromagnetic valve 33, the power-off of the tenth switch electromagnetic valve 34, the 11st switch electromagnetic valve 35 are closed, the work of high pressure accumulator 21 Make, the brake fluid of high pressure accumulator 21 passes through the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23, the 6th switch electromagnetic valve 24th, the 7th switch electromagnetic valve 25 enters in each wheel cylinder, eliminates the gap of brake disc and friction plate, and now motor 14 is rotated and drives one Number 15, No. two pumps 16 of pump work, by the brake fluid in lubricating cup 10 by the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23, 6th switch electromagnetic valve 24, the 7th switch electromagnetic valve 25 make wheel cylinder brake pressure rise generation braking in pumping into wheel cylinder.Flow of pressurized As shown in thick line in Figure 20.
Packing stage：
Refering to Figure 21, the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23, the 6th switch electromagnetic valve the 24, the 7th are switched Magnetic valve 25 is powered and closes, and the 8th switch electromagnetic valve 32, the 9th switch electromagnetic valve 33, the tenth switch electromagnetic valve the 34, the 11st are opened The power-off of powered-down magnet valve 35 is closed, and the oil pressure in four wheel cylinders keeps constant.Flow of pressurized is as shown in thick line in Figure 21.
Decompression phase：
Refering to Figure 22, the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23, the 6th switch electromagnetic valve the 24, the 7th are switched Magnetic valve 25 is powered and closes, and the 8th switch electromagnetic valve 32, the 9th switch electromagnetic valve 33, the tenth switch electromagnetic valve the 34, the 11st are opened Powered-down magnet valve 35 is powered and opens, and brake fluid is opened from each wheel cylinder by the 8th switch electromagnetic valve 32, the 9th switch electromagnetic valve the 33, the tenth Powered-down magnet valve 34, the 11st switch electromagnetic valve 35 flow back into lubricating cup, realize each wheel cylinder decompression.Thick line institute in flow of pressurized such as Figure 22 Show.
3.TCS operating conditions
In wheel driving process, electronic control unit 30 (ECU) judges wheel-slip (by taking left rear wheel as an example), triggering TCS is controlled.Now, it is not necessary to step on brake pedal, thus pedal sense simulator 11 does not work.First switch magnetic valve 18, second Switch electromagnetic valve 19 is powered and closes, and realizes master cylinder full decoupling.The power-off of 4th switch electromagnetic valve 22 is opened, the 8th switch electromagnetism The power-off of valve 32 is closed, and high pressure accumulator 21 works, and the brake fluid of high pressure accumulator 21 enters left by the 4th switch electromagnetic valve 22 In rear wheel cylinder, the gap of brake disc and friction plate is eliminated, now motor 14 is rotated and drives 15, No. two pumps 16 of a pump to work, will Brake fluid in lubricating cup 10 is pumped into by the 4th switch electromagnetic valve 22 and produce braking in left back wheel cylinder (other wheel cylinders can enter respectively Row supercharging, pressurize, decompression).
Pressurization stages：
Refering to Figure 23, first switch magnetic valve 18, second switch magnetic valve 19 are powered and close, and the 4th switch electromagnetic valve 22 breaks Electric-opening, high pressure accumulator 21 works, and the brake fluid of high pressure accumulator 21 enters left back wheel cylinder by the 4th switch electromagnetic valve 22 In, the gap of brake disc and friction plate is eliminated, now motor 14 is rotated and drives 15, No. two pumps 16 of a pump to work, by lubricating cup 10 In brake fluid pumped into by the 4th switch electromagnetic valve 22 braking produced in left back wheel cylinder.Flow of pressurized is as shown in thick line in Figure 23.
Packing stage：
Refering to Figure 24, the 4th switch electromagnetic valve 22 is powered and closes, and the power-off of the 8th switch electromagnetic valve 32 is closed, left back braked wheel Oil pressure in cylinder keeps constant.Flow of pressurized is as shown in thick line in Figure 24.
Decompression phase：
Refering to Figure 25, the 4th switch electromagnetic valve 22 is powered and closes, and the 8th switch electromagnetic valve 32 is powered and opens, and brake fluid is from a left side Rear wheel cylinder flow back into lubricating cup 10 by the 8th switch electromagnetic valve 32, realizes left back wheel cylinder decompression.Thick line institute in flow of pressurized such as Figure 25 Show.
Refering to Figure 26, left back wheel cylinder brakes pressurization, the supercharging of off-front wheel cylinder, left front wheel cylinder pressurize, the decompression of off hind wheel cylinder Simultaneous situation (other situations are not just enumerated, and principle is all identical), now the 4th switch electromagnetic valve the 22, the 8th is opened The power-off of powered-down magnet valve 23 is opened, and the 6th switch electromagnetic valve 24, the 7th switch electromagnetic valve 25 is powered and closes, the 8th switch electromagnetic valve 32nd, the 9th switch electromagnetic valve 33, the tenth switch electromagnetic valve 34 power-off is closed, and the 11st switch electromagnetic valve 35 is powered and opens.Hydraulic pressure Stream is as shown in thick line in Figure 26.
4.ESC operating conditions
Refering to Figure 27, in vehicle travel process, when ECU judges vehicle unstability, triggering ESC controls are not (with to the left As a example by foot is turned to：Need that rear left wheel is implemented to brake, vehicle is kept stabilization).Need not now step on brake pedal, therefore pedal Sense simulator 11 does not work.First switch magnetic valve 18, second switch magnetic valve 19 are powered and close, and realize master cylinder complete solution Coupling.The power-off of 4th switch electromagnetic valve 22 is opened, and the power-off of the 8th switch electromagnetic valve 32 is closed, and high pressure accumulator 21 works, and high pressure stores The brake fluid of energy device 21 is entered in left back wheel cylinder by the 4th switch electromagnetic valve 22, eliminates the gap of brake disc and friction plate, this When motor 14 rotate drive 15, No. two pumps 16 of a pump work, by the brake fluid in lubricating cup 10 pass through the 4th switch electromagnetic valve 22 Pump into generation braking in left back wheel cylinder (other situation operation principles are same, just do not enumerate herein).Flow of pressurized is as schemed In 27 shown in thick line.
Refering to Figure 28, while implementing to brake to left back braked wheel, the supercharging of off-front wheel cylinder, left front wheel cylinder pressurize, behind the right side Wheel cylinder depressurizes (other situation operation principles are same, just do not enumerate herein), now the 4th switch electromagnetic valve the 22, the 8th The power-off of switch electromagnetic valve 23 is opened, and the 6th switch electromagnetic valve 24, the 7th switch electromagnetic valve 25 is powered and closes, the 8th switch electromagnetic valve 32nd, the 9th switch electromagnetic valve 33, the tenth switch electromagnetic valve 34 power-off is closed, and the 11st switch electromagnetic valve 35 is powered and opens.Specifically Operation principle is as shown in the figure.Flow of pressurized is as shown in thick line in Figure 28.
5.ACC operating conditions
When being run under ACC mode, when sensor finds nearer with front truck vehicle distances, triggering ACC work, now, Brake pedal need not be stepped on, therefore pedal sense simulator 11 does not work.First switch magnetic valve 18, second switch magnetic valve 19 lead to It is electrically turn off, the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23, the 6th switch electromagnetic valve 24, the 7th switch electromagnetic valve 25 break Electric-opening, the 8th switch electromagnetic valve 32, the 9th switch electromagnetic valve 33, the tenth switch electromagnetic valve 34, the 11st switch electromagnetic valve 35 Power-off is closed, and high pressure accumulator 21 works, and the brake fluid of high pressure accumulator 21 switchs electricity by the 4th switch electromagnetic valve the 22, the 5th Magnet valve 23, the 6th switch electromagnetic valve 24, the 7th switch electromagnetic valve 25 enter in each wheel cylinder, eliminate between brake disc and friction plate Gap, the now rotation of motor 14 drives 15, No. two pumps 16 of a pump to work, by the brake fluid in lubricating cup 10 by the 4th switch electromagnetism Valve 22, the 5th switch electromagnetic valve 23, the 6th switch electromagnetic valve 24, the 7th switch electromagnetic valve 25 produce braking in pumping into wheel cylinder.
Pressurization stages：
Refering to Figure 29, first switch magnetic valve 18, second switch magnetic valve 19 are powered and close, the 4th switch electromagnetic valve 22, 5th switch electromagnetic valve 23, the power-off of the 6th switch electromagnetic valve 24, the 7th switch electromagnetic valve 25 are opened, the 8th switch electromagnetic valve 32, 9th switch electromagnetic valve 33, the power-off of the tenth switch electromagnetic valve 34, the 11st switch electromagnetic valve 35 are closed, the work of high pressure accumulator 21 Make, the brake fluid of high pressure accumulator 21 passes through the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23, the 6th switch electromagnetic valve 24th, the 7th switch electromagnetic valve 25 enters in each wheel cylinder, eliminates the gap of brake disc and friction plate, and now motor 14 is rotated and drives one Number 15, No. two pumps 16 of pump work, by the brake fluid in lubricating cup 10 by the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23, 6th switch electromagnetic valve 24, the 7th switch electromagnetic valve 25 make wheel cylinder brake pressure rise generation braking in pumping into wheel cylinder.Flow of pressurized As shown in thick line in Figure 29.
Packing stage：
Refering to Figure 30, the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23, the 6th switch electromagnetic valve the 24, the 7th are switched Magnetic valve 25 is powered and closes, and the 8th switch electromagnetic valve 32, the 9th switch electromagnetic valve 33, the tenth switch electromagnetic valve the 34, the 11st are opened The power-off of powered-down magnet valve 35 is closed, and the oil pressure in four wheel cylinders keeps constant.Flow of pressurized is as shown in thick line in Figure 30.
Decompression phase：
Refering to Figure 31, the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23, the 6th switch electromagnetic valve the 24, the 7th are switched Magnetic valve 25 is powered and closes, and the 8th switch electromagnetic valve 32, the 9th switch electromagnetic valve 33, the tenth switch electromagnetic valve the 34, the 11st are opened Powered-down magnet valve 35 is powered and opens, and brake fluid is opened from each wheel cylinder by the 8th switch electromagnetic valve 32, the 9th switch electromagnetic valve the 33, the tenth Powered-down magnet valve 34, the 11st switch electromagnetic valve 35 flow back into lubricating cup, realize each wheel cylinder decompression.Thick line institute in flow of pressurized such as Figure 31 Show.
6.AEB operating modes are braked
Refering to Figure 32, the system can quickly realize automobile in the case that automobile will be collided identifying to brakes Braking.When recognizing the need for quickly realizing automobile brake, electronic control unit 30 (ECU) provides line traffic control liquid by calculating analysis The pressure system B2 and master cylinder output unit A with lubricating cup performs order.Now, it is not necessary to step on brake pedal, thus pedal sense Simulator 11 does not work.The power-off of 3rd switch electromagnetic valve 20 is closed, and first switch magnetic valve 18, second switch magnetic valve 19 are powered Close, realize master cylinder full decoupling.4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23, the 6th switch electromagnetic valve 24, The power-off of seven switch electromagnetic valve 25 is opened, the 8th switch electromagnetic valve 32, the 9th switch electromagnetic valve 33, the tenth switch electromagnetic valve 34, the The power-off of 11 switch electromagnetic valve 35 is closed, and high pressure accumulator 21 works, and the brake fluid of high pressure accumulator 21 is by the 4th switch electricity Magnet valve 22, the 5th switch electromagnetic valve 23, the 6th switch electromagnetic valve 24, the 7th switch electromagnetic valve 25 enter in each wheel cylinder, eliminate system The gap of Moving plate and friction plate, the now rotation of motor 14 drives 15, No. two pumps 16 of a pump to work, by the brake fluid in lubricating cup 10 Wheel is pumped into by the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23, the 6th switch electromagnetic valve 24, the 7th switch electromagnetic valve 25 Braking is produced in cylinder.Flow of pressurized is as shown in thick line in Figure 32.
7. fail safe
When the unexpected power-off failure of line control system, this system can still carry out brake hard, now linear voltage regulation valve 17, The power-off of three switch electromagnetic valve 20 closing, first switch magnetic valve 18, second switch magnetic valve 19, the 4th switch electromagnetic valve 22, the Five switch electromagnetic valves 23, the power-off of the 6th switch electromagnetic valve 24, the 7th switch electromagnetic valve 25 are opened, the 8th switch electromagnetic valve 32, the Nine switch electromagnetic valves 33, the power-off of the tenth switch electromagnetic valve 34, the 11st switch electromagnetic valve 35 are closed.
1) the brake pedal stage is stepped in failure braking：
Refering to Figure 33, brake pedal 1, the brake fluid in I chamber, II chamber is by first switch magnetic valve in master cylinder 9 18th, second switch magnetic valve 19, the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23, the 6th switch electromagnetic valve the 24, the 7th are opened Powered-down magnet valve 25 enters four wheel cylinders and implements failure braking.Flow of pressurized is as shown in thick line in Figure 33.
2) the failure braking loose brake pedal stage：
Refering to Figure 34, loosen the brake, each wheel cylinder brake fluid passes through the 4th switch electromagnetic valve 22, the 5th switch electromagnetic valve 23rd, the 6th switch electromagnetic valve 24, the 7th switch electromagnetic valve 25, first switch magnetic valve 18, second switch magnetic valve 19 are returned to Master cylinder 9, in lubricating cup 10 is returned to, realizes failure decompression.Flow of pressurized is as shown in thick line in Figure 34.

Claims (10)

1. a kind of line control brake system based on time-shared serial control, including electronic control unit (C), electronic control unit (C) It is connected with No. 1 hydraulic control unit (B1) electric wire with the master cylinder output unit (A) with lubricating cup, it is characterised in that described Line control brake system based on time-shared serial control also includes the master cylinder output unit (A) with lubricating cup, No. 1 hydraulic control list First (B1) and wheel drag (D)；
The described master cylinder output unit (A) with lubricating cup includes lubricating cup (10), master cylinder housing (4)；
No. 1 described hydraulic control unit (B1) is opened including pump (15), No. two pumps (16), linear voltage regulation valve (17), first Powered-down magnet valve (18), second switch magnetic valve (19), the 4th switch electromagnetic valve (22), the 5th switch electromagnetic valve (23), the 6th open Powered-down magnet valve (24) and the 7th switch electromagnetic valve (25)；
Described wheel drag (D) includes left rear wheel brake (RL), off-front wheel brake (FR), near front wheel brake (FL), off hind wheel brake (RR)；
No. 1 oil-out of described lubricating cup (10) and one end of linear voltage regulation valve (17), the oil inlet of pump (15) and No. two The oil inlet pipeline connection of pump (16), one end of the chamber oil-out of master cylinder I and first switch magnetic valve (18) on master cylinder housing (4) Pipeline is connected, one end pipeline connection of the chamber oil-out of master cylinder II and second switch magnetic valve (19) on master cylinder housing (4), the 4th Switch electromagnetic valve (22), the 5th switch electromagnetic valve (23), the 6th switch electromagnetic valve (24) are another with the 7th switch electromagnetic valve (25) One end successively with left rear wheel brake (RL), off-front wheel brake (FR), near front wheel brake (FL) and off hind wheel brake (RR) pipeline connection.
2. according to the line control brake system controlled based on time-shared serial described in claim 1, it is characterised in that described band oil The master cylinder output unit (A) of cup also includes brake pedal (1), pedal displacement sensor (2), master cylinder, pedal sense Simulator (11) and the 3rd switch electromagnetic valve (20)；
No. 2 oil-outs on described lubricating cup (10) enter with two on master cylinder housing (4) in master cylinder successively with No. 3 oil-outs Hydraulic fluid port pipeline is connected, and one of the chamber oil-out of master cylinder II and the 3rd switch electromagnetic valve (20) in master cylinder on master cylinder housing (4) End pipe road connects, and the other end of the 3rd switch electromagnetic valve (20) is connected with the left end pipeline of pedal sense simulator (11)；Braking The right-hand member of the push rod (3) in master cylinder connects brake pedal (1), pedal displacement sensor (2) on brake pedal (1), the Three switch electromagnetic valves (20) are normally closed switch magnetic valve.
3. according to the line control brake system controlled based on time-shared serial described in claim 2, it is characterised in that described pedal Sense simulator (11) includes pedal sense simulator shell (31), pedal sense simulator piston (12), pedal sense simulator Spring (13)；
Described pedal sense simulator piston (12) is interior installed in pedal sense simulator shell (31), pedal sense simulator bullet Spring (13) between pedal sense simulator piston (12) and pedal sense simulator shell (31) right-hand member wall, pedal sense mould Intend the left and right two ends of device spring (13) respectively with the right side of pedal sense simulator piston (12) and pedal sense simulator shell (31) the left inside wall contact connection of right-hand member wall, the left end of pedal sense simulator shell (31) is connected with brake piping.
4. according to the line control brake system controlled based on time-shared serial described in claim 2, it is characterised in that described braking Master cylinder includes master cylinder housing (4), master cylinder first piston (7), master cylinder second piston (5), the chamber return spring (8) of master cylinder I, master cylinder II Chamber return spring (6) and push rod (3)；
Described master cylinder first piston (7) and master cylinder second piston (5) is interior installed in master cylinder housing (4), master cylinder first piston (7) The chamber of master cylinder II is formed between master cylinder second piston (5), a two ends is installed in the chamber of master cylinder II and is lived with master cylinder first respectively The chamber return spring (6) of master cylinder II that plug (7) is connected with master cylinder second piston (5), master cylinder first piston (7) and master cylinder housing (4) Left end form master cylinder I chamber, be provided with the chamber of master cylinder I two ends respectively with master cylinder first piston (7) and master cylinder housing (4) The chamber return spring (8) of master cylinder I of left end wall inwall connection, master cylinder second piston (5) forms master cylinder with the right-hand member of master cylinder housing (4) III chamber, the right side of master cylinder second piston (5) is connected with the left end of push rod (3), in the chamber of master cylinder I and the master cylinder housing in the chamber of master cylinder II (4) two oil inlets and two oil-outs are provided with wall.
5. according to the line control brake system controlled based on time-shared serial described in claim 1, it is characterised in that described No. 1 Hydraulic control unit (B1) also includes motor (14), high pressure accumulator (21), first pressure sensor (26), second pressure sensing Device (27), the 3rd pressure sensor (28) and the 4th pressure sensor (29)；
Input shaft end of the dual output shaft end of described motor (14) successively with a pump (15), No. two pumps (16) is connected, No. one Pump (15) is connected with the oil inlet of No. two pumps (16) and one end pipeline of linear voltage regulation valve (17), a pump (15) and No. two pumps (16) oil-out and linear voltage regulation valve (17), first switch magnetic valve (18), the other end of second switch magnetic valve (19) with High pressure accumulator (21) pipeline is connected, pump (15) and No. two oil-outs of pump (16) also with the 4th switch electromagnetic valve (22), 5th switch electromagnetic valve (23), the 6th switch electromagnetic valve (24) are connected with one end pipeline of the 7th switch electromagnetic valve (25), and the 4th Switch electromagnetic valve (22), the 5th switch electromagnetic valve (23), the 6th switch electromagnetic valve (24) are another with the 7th switch electromagnetic valve (25) One end successively with first pressure sensor (26), second pressure sensor (27), the 3rd pressure sensor (28) and the 4th pressure Sensor (29) pipeline is connected.
6. according to the line control brake system controlled based on time-shared serial described in claim 1 or 5, it is characterised in that described First switch magnetic valve (18), second switch magnetic valve (19), the 4th switch electromagnetic valve (22), the 5th switch electromagnetic valve (23), 6th switch electromagnetic valve (24) and the 7th switch electromagnetic valve (25) are to close to open in the event of a power failure in the case of energization Normal open switch magnetic valve.
7. a kind of line control brake system based on parallel control simultaneously, including electronic control unit (C), electronic control unit (C) It is connected with No. 2 hydraulic control unit (B2) electric wires with the master cylinder output unit (A) with lubricating cup, it is characterised in that described Line control brake system based on parallel control simultaneously also includes the master cylinder output unit (A) with lubricating cup, No. 2 hydraulic control lists First (B2) and wheel drag (D)；
The described master cylinder output unit (A) with lubricating cup includes lubricating cup (10), master cylinder housing (4)；
No. 2 described hydraulic control units (B2) are opened including pump (15), No. two pumps (16), linear voltage regulation valve (17), first Powered-down magnet valve (18), second switch magnetic valve (19), the 8th switch electromagnetic valve (32), the 9th switch electromagnetic valve (33), the tenth open Powered-down magnet valve (34) and the 11st switch electromagnetic valve (35)；
Described wheel drag (D) includes left rear wheel brake (RL), off-front wheel brake (FR), near front wheel brake (FL), off hind wheel brake (RR)；
No. 1 oil-out of described lubricating cup (10) and one end of linear voltage regulation valve (17), the oil inlet of pump (15) and No. two The oil inlet pipeline connection of pump (16), one end of the chamber oil-out of master cylinder I and first switch magnetic valve (18) on master cylinder housing (4) Pipeline is connected, one end pipeline connection of the chamber oil-out of master cylinder II and second switch magnetic valve (19) on master cylinder housing (4), the 8th Switch electromagnetic valve (32), the 9th switch electromagnetic valve (33), the tenth switch electromagnetic valve (34) and the 11st switch electromagnetic valve (35) One end successively with left rear wheel brake (RL), off-front wheel brake (FR), near front wheel brake (FL) and off hind wheel brake (RR) pipeline connection.
8. according to the line control brake system based on parallel control simultaneously described in claim 7, it is characterised in that described No. 2 Hydraulic control unit (B2) also includes motor (14), high pressure accumulator (21), the 4th switch electromagnetic valve (22), the 5th switch electromagnetism Valve (23), the 6th switch electromagnetic valve (24), the 7th switch electromagnetic valve (25), first pressure sensor (26), second pressure sensing Device (27), the 3rd pressure sensor (28), the 4th pressure sensor (29)；
Input shaft end of the dual output shaft end of described motor (14) successively with a pump (15), No. two pumps (16) is connected, No. one Pump (15) is connected with the oil inlet of No. two pumps (16) and one end pipeline of linear voltage regulation valve (17), a pump (15) and No. two pumps (16) oil-out and linear voltage regulation valve (17), first switch magnetic valve (18), the other end of second switch magnetic valve (19) with High pressure accumulator (21) pipeline is connected, pump (15) and No. two oil-outs of pump (16) also with the 4th switch electromagnetic valve (22), 5th switch electromagnetic valve (23), the 6th switch electromagnetic valve (24) are connected with one end pipeline of the 7th switch electromagnetic valve (25), and the 4th Switch electromagnetic valve (22), the 5th switch electromagnetic valve (23), the 6th switch electromagnetic valve (24) are another with the 7th switch electromagnetic valve (25) Opened with the 11st with the 8th switch electromagnetic valve (32), the 9th switch electromagnetic valve (33), the tenth switch electromagnetic valve (34) successively one end One end pipeline connection of powered-down magnet valve (35), the 4th switch electromagnetic valve (22), the 5th switch electromagnetic valve (23), the 6th switch electromagnetism The other end of valve (24) and the 7th switch electromagnetic valve (25) successively with first pressure sensor (26), second pressure sensor (27), the 3rd pressure sensor (28) is connected with the 4th pressure sensor (29) pipeline, and the 8th switch electromagnetic valve (32), the 9th open No. 4 of powered-down magnet valve (33), the other end of the tenth switch electromagnetic valve (34) and the 11st switch electromagnetic valve (35) and lubricating cup (10) Oil-out pipeline is connected.
9. according to the line control brake system based on parallel control simultaneously described in claim 7, it is characterised in that described the 8th Switch electromagnetic valve (32), the 9th switch electromagnetic valve (33), the tenth switch electromagnetic valve (34) are with the 11st switch electromagnetic valve (35) The normally closed switch magnetic valve closed in the event of a power failure is opened in the case of energization.
10. according to the line control brake system controlled based on time-shared serial described in claim 1 or 7, it is characterised in that described Electric wire is connected is for electronic control unit (C) and the master cylinder output unit (A) with lubricating cup and No. 1 hydraulic control unit (B1) Refer to：
Described electronic control unit (C) and described motor (14), pedal displacement sensor (2), linear voltage regulation valve (17), One switch electromagnetic valve (18), second switch magnetic valve (19), the 3rd switch electromagnetic valve (20), high pressure accumulator (21), the 4th open Powered-down magnet valve (22), the 5th switch electromagnetic valve (23), the 6th switch electromagnetic valve (24), the 7th switch electromagnetic valve (25), the first pressure Force snesor (26), second pressure sensor (27), the 3rd pressure sensor (28) are electrically connected with the 4th pressure sensor (29)；
Described electronic control unit (C) and the master cylinder output unit (A) with lubricating cup and No. 2 hydraulic control unit (B2) electricity Line is connected：
Described electronic control unit (C) and described motor (14), pedal displacement sensor (2), linear voltage regulation valve (17), One switch electromagnetic valve (18), second switch magnetic valve (19), the 3rd switch electromagnetic valve (20), high pressure accumulator (21), the 4th open Powered-down magnet valve (22), the 5th switch electromagnetic valve (23), the 6th switch electromagnetic valve (24), the 7th switch electromagnetic valve (25), the first pressure Force snesor (26), second pressure sensor (27), the 3rd pressure sensor (28), the 4th pressure sensor (29), the 8th open Powered-down magnet valve (32), the 9th switch electromagnetic valve (33), the tenth switch electromagnetic valve (34) are electrically connected with the 11st switch electromagnetic valve (35) Connect.
CN201710013743.6A 2017-01-09 2017-01-09 Line control brake system based on time-shared serial with parallel control simultaneously Pending CN106740787A (en)

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CN115095618A (en) * 2022-06-27 2022-09-23 浙江师范大学 Composite line control brake, brake system and control method

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Application publication date: 20170531