CN104442781B - Integrated electronic hydraulic multi-functional brake system with fine-adjustable major loop pressure - Google Patents
Integrated electronic hydraulic multi-functional brake system with fine-adjustable major loop pressure Download PDFInfo
- Publication number
- CN104442781B CN104442781B CN201310428992.3A CN201310428992A CN104442781B CN 104442781 B CN104442781 B CN 104442781B CN 201310428992 A CN201310428992 A CN 201310428992A CN 104442781 B CN104442781 B CN 104442781B
- Authority
- CN
- China
- Prior art keywords
- inlet
- valve
- liquid outlet
- magnetic valve
- wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/04—Brake-action initiating means for personal initiation foot actuated
- B60T7/042—Brake-action initiating means for personal initiation foot actuated by electrical means, e.g. using travel or force sensors
-
- 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
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/17—Using electrical or electronic regulation means to control braking
-
- 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
- B60T2220/00—Monitoring, detecting driver behaviour; Signalling thereof; Counteracting thereof
- B60T2220/04—Pedal travel sensor, stroke sensor; Sensing brake request
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
The invention belongs to the technical field of automobile brake system, particularly relates to an integrated electronic hydraulic multi-functional brake system with fine-adjustable major loop pressure. The purpose of the system is to supply a system with quick response, easy control, simple structure, and the system can guarantee drivers' normal brake when pipelines losing efficiency. The system comprises a brake pedal (1), an oil storing cup (3), a piston cylinder, a pedal force simulator (5), a motor (7), a hydraulic pump (8), a high pressure energy accumulator (9), an overflow valve (12), solenoid valves and a wheel cylinder. The responsiveness of the brake system is improved by adopting a high pressure energy accumulator assembly as a power source, seven solenoid valves cooperated with the high pressure energy accumulator assembly is adopted to achieve pressure increasing, pressure decreasing, pressure maintaining and differential braking, the arrangement of braking pipelines is simplified and quantity of solenoid valves is decreased.
Description
Technical field
The invention belongs to brake system of car technical field, and in particular to one kind has the fine adjustable collection of major loop pressure
Into electro-hydraulic Multifunctional brake system.
Background technology
Brake system of car is closely related with the security of automobile, is constantly subjected to the extensive concern of people, in recent years, except biography
Outward, braking aids in (BA), adaptive learning algorithms system for system anti-blocking brake system (ABS), electronic stability controlling system (ESP)
The systematic differences such as system (ACC), active collision avoidance are more and more extensive, and requirements at the higher level are there has also been to brakes.
With the gradually maturation of electron controls technology, wire control technology is developed rapidly, EHB
(EHB), the system such as mechanical type brake system electric (EMB), integrated modular brakes (IBS) is arisen at the historic moment, due to line traffic control
Brakes eliminates the mechanical connection of Conventional braking systems, with controlling that more flexible, structure is simpler, the response time is shorter,
The features such as braking ability is more preferably, maintenance is simple, it is easy to accomplish adaptive cruise control system (ACC), active collision avoidance, braking energy
The advantages of recovery.
EHB (EHB) will be joined directly together the switching solenoid valve for connecing with piston cylinder and close first in supercharging
Close, be then turned on each wheel cylinder liquid feed valve, brake fluid enters wheel cylinder by high pressure accumulator through fluid pressure line, liquid feed valve；Decompression
When, liquid feed valve is closed, while opening liquid valve, brake fluid flows back to liquid storage lubricating cup by wheel cylinder；During pressurize, by liquid feed valve and liquid valve
Simultaneously close off；When pipeline fails, switching solenoid valve is in opening, so that brake fluid can be by piston cylinder through switching electricity
Magnet valve, liquid feed valve flow into wheel cylinder.Its power supply device is high pressure accumulator, and pressure-responsive is fast, but the system pipeline is more, required
Magnetic valve is also more.
Mechanical type brake system electric (EMB) is rotated according to brake pedal signal by controlled motor, through running part,
So that caliper compresses brake disc and realizes automobile brake, the characteristics of with fast, easily controllable and brake-by-wire technology is responded, but not
The design of standby system when being easily achieved brake fade.
The content of the invention
Fast, easy to control, simple structure is responded it is an object of the invention to provide one kind, can ensure driver when pipeline fails
Normal brake application with the fine adjustable integrated electronic multifunctional hydraulic brakes of major loop pressure.
What the present invention was realized in：
One kind has a fine adjustable integrated electronic multifunctional hydraulic brakes of major loop pressure, including brake pedal,
Liquid storage lubricating cup, piston cylinder, pedal force simulator, motor, hydraulic pump, high pressure accumulator, overflow valve, magnetic valve and wheel cylinder；Electromagnetism
Valve group includes high-speed switch electromagnetic valve, the first magnetic valve, the second magnetic valve, the 3rd magnetic valve, the 4th magnetic valve, oil return solenoid valve
And switching solenoid valve；Wheel cylinder includes left back wheel cylinder, off hind wheel cylinder, left front wheel cylinder and off-front wheel cylinder；Check valve includes that first is unidirectional
Valve and the second check valve；
Wherein, inlet of the cavity of piston cylinder respectively with pedal force simulator, switching solenoid valve is connected；High pressure accumulator
Liquid outlet liquid outlet respectively with hydraulic pump, the inlet of high-speed switch electromagnetic valve is connected；High-speed switch electromagnetic valve goes out liquid
Mouth, the liquid outlet of switching solenoid valve, the liquid outlet of oil return solenoid valve, the inlet of hydraulic retarder, the feed liquor of the first magnetic valve
Mouth, the inlet of the inlet of the second magnetic valve, the inlet of the 3rd magnetic valve, the 4th magnetic valve are connected；Oil return solenoid valve
Inlet is connected with the liquid outlet of liquid storage lubricating cup；The liquid outlet of the first magnetic valve is connected with the inlet of left back wheel cylinder, the second electricity
The liquid outlet of magnet valve is connected with the inlet of off hind wheel cylinder, and the liquid outlet of the 3rd magnetic valve is connected with the inlet of left front wheel cylinder,
The liquid outlet of the 4th magnetic valve is connected with the inlet of off-front wheel cylinder.
It also includes hydraulic retarder, and hydraulic retarder is arranged on the liquid outlet of connection high-speed switch electromagnetic valve, switching electricity
The liquid outlet of magnet valve, the liquid outlet of oil return solenoid valve, the inlet of the first magnetic valve, the inlet of the second magnetic valve, the 3rd electricity
On the pipeline of the inlet of the inlet of magnet valve and the 4th magnetic valve.
Sensor group as described above include brake-pedal-travel sensor, pressure sensor, left rear wheel wheel speed sensors,
Off hind wheel wheel speed sensors, the near front wheel wheel speed sensors and off-front wheel wheel speed sensors；Brake-pedal-travel sensor is arranged on
On brake pedal；Pressure sensor is arranged on the input of the second check valve；Left rear wheel wheel speed sensors, off hind wheel wheel speed sensing
Device, the near front wheel wheel speed sensors and off-front wheel wheel speed sensors are separately mounted to left rear wheel, off hind wheel, the near front wheel and off-front wheel
On；The output end of the sensor is connected with electronic control unit.
Piston cylinder as described above is two-chamber piston cylinder, and brake pedal is connected with two-chamber piston cylinder by piston rod piece；Storage
The liquid outlet of liquid lubricating cup is connected with the upper inlet of two-chamber piston cylinder；The back cavity of two-chamber piston cylinder is connected with pedal force simulator,
The ante-chamber of two-chamber piston cylinder is connected with the inlet of switching solenoid valve.
Described piston cylinder is two-chamber piston cylinder, and brake pedal is connected with two-chamber piston cylinder by piston rod piece；Liquid storage oil
The liquid outlet of cup is connected with the upper inlet of two-chamber piston cylinder；The back cavity of two-chamber piston cylinder is connected with pedal force simulator, two-chamber
The ante-chamber of piston cylinder is connected with the inlet of switching solenoid valve.
It also includes the first check valve and the second check valve 30；Brake pedal passes through piston rod piece phase with two-chamber piston cylinder
Even；The liquid outlet of liquid storage lubricating cup is connected with the upper inlet of two-chamber piston cylinder；The back cavity of two-chamber piston cylinder and pedal force simulator
Connection, the ante-chamber of two-chamber piston cylinder is connected with the inlet of switching solenoid valve；The inlet of hydraulic pump by the first check valve with
The liquid outlet of liquid storage lubricating cup is connected, and the liquid outlet of hydraulic pump is connected by the second check valve with the liquid outlet of high pressure accumulator.
Piston cylinder as described above is two-chamber piston cylinder, and the quantity of described high-speed switch electromagnetic valve is 2, high-voltage energy-storage
The liquid outlet of device is connected with the inlet of two high-speed switch electromagnetic valves, the liquid outlet and the first electricity of high-speed switch electromagnetic valve
Magnet valve, the inlet of the second magnetic valve are connected, the liquid outlet of another high-speed switch electromagnetic valve and the 3rd magnetic valve, the 4th electromagnetism
The inlet of valve is connected, while the inlet of two liquid outlets of high-speed switch electromagnetic valve respectively with two oil return valves is connected, shape
Into two major loops.
It also includes two hydraulic retarders, two liquid outlets of high-speed switch electromagnetic valve respectively with two hydraulic retarders
Inlet be connected, a liquid outlet for hydraulic retarder is connected with the inlet of the first magnetic valve, the second magnetic valve, another
Hydraulic retarder is connected with the inlet of the 3rd magnetic valve, the 4th magnetic valve, while two liquid outlet difference of hydraulic retarder
Inlet with two oil return valves is connected, and forms two major loops.
Piston cylinder as described above is integrated form piston cylinder, and brake pedal is connected with integrated form piston cylinder；Liquid storage lubricating cup
Liquid outlet is connected with the upper inlet of integrated form piston cylinder；The inlet phase of the cavity of integrated form piston cylinder and switching solenoid valve
Even.
Piston cylinder as described above is single-chamber piston cylinder, and brake pedal is connected with single-chamber piston cylinder；Liquid storage lubricating cup goes out liquid
Mouth is connected with the upper inlet of single-chamber piston cylinder；The cavity of single-chamber piston cylinder is connected with the inlet of switching solenoid valve.
The beneficial effects of the present invention are：
The present invention, as power source, improves brake system response ability using high-voltage energy-storage device assembly.Using seven electricity
Magnet valve coordinates high-voltage energy-storage device assembly to realize supercharging, decompression, pressurize and the differential braking of braking, simplifies the cloth of brake piping
Put, reduce magnetic valve quantity.When hydraulic regulation Module Fail, brake pedal is directly connected with piston cylinder, is capable of achieving part
Brake efficiency, it is to avoid the entirely ineffective loss for bringing of brakes.Additionally, the function of the achievable line control brake system of the present invention,
Control is simple, and convenient integrated with other systems.
The present invention, both can be by adjusting high-speed switch valve, oil return valve, first, second, the when realizing that pressure is adjusted
3rd, the 4th magnetic valve realizes that when being such as pressurized, open high-speed switch valve, high-voltage oil liquid flows into wheel through the magnetic valve that wheel cylinder is connected
Cylinder, the magnetic valve that closing is connected with wheel cylinder after wheel cylinder reaches goal pressure, it is also possible to by high-speed switch valve, oil return valve
The pressure of working connection is adjusted, the magnetic valve being then connected with wheel cylinder by regulation realizes pressure follow, when being such as pressurized, led to first
High-speed switch valve, the pressure of oil return valve regulation working connection are crossed, then according to pressure of wheel braking cylinder demand, timesharing opens first, second, the
3rd, the 4th magnetic valve sets up pressure of wheel braking cylinder.
It is related to using two major loops, every major loop is only connected with two wheel cylinders by magnetic valve, is greatly improved
The response of pressure of wheel braking cylinder timesharing regulation.
Brief description of the drawings
Fig. 1 for it is of the invention the first there is the fine adjustable integrated electronic multifunctional hydraulic brakes of major loop pressure
System structure diagram；
Fig. 2 is second of the invention with the fine adjustable integrated electronic multifunctional hydraulic brakes of major loop pressure
System structure diagram；
Fig. 3 has the fine adjustable integrated electronic multifunctional hydraulic brakes of major loop pressure for of the invention the third
System structure diagram；
Fig. 4 is 4th kind of the invention has the fine adjustable integrated electronic multifunctional hydraulic braking of two articles of major loop pressure
The system structure diagram of system；
In figure：1. brake pedal；2. brake-pedal-travel sensor；3. liquid storage lubricating cup；4. two-chamber piston cylinder；5. pedal force
Simulator；6. the first check valve；7. motor；8. hydraulic pump；9. high pressure accumulator；10. pressure sensor；11. speed-sensitive switches electricity
Magnet valve；12. overflow valves；13. hydraulic retarders；14. first magnetic valves；15. second magnetic valves；16. left rear wheel wheel cylinders；17. is left
Trailing wheel wheel speed sensors；18. off hind wheel wheel cylinders；19. off hind wheel wheel speed sensors；20. the near front wheel wheel cylinders；21. the near front wheel wheel speeds
Sensor；22. off-front wheel wheel cylinders；23. left rear wheel wheel speed sensors；24. the 4th magnetic valves；25. the 4th magnetic valves；26. oil returns
Magnetic valve；27. switching solenoid valves；28 integrated form piston cylinders；29. single-chamber piston cylinders, 30. second check valves.
Specific embodiment
Below in conjunction with the accompanying drawings with specific embodiment to of the invention a kind of with the fine adjustable integrated electricity of major loop pressure
Sub- multifunctional hydraulic brakes is introduced：
One kind has a fine adjustable integrated electronic multifunctional hydraulic brakes of major loop pressure, including brake pedal 1,
Liquid storage lubricating cup 3, two-chamber piston cylinder 4, pedal force simulator 5, check valve, motor 7, hydraulic pump 8, high pressure accumulator 9, overflow valve
12nd, hydraulic retarder 13, sensor group, magnetic valve and wheel cylinder.Check valve includes the first check valve 6 and the second check valve 30.Pass
Sensor group includes brake-pedal-travel sensor 2, pressure sensor 10, left rear wheel wheel speed sensors 17, off hind wheel wheel speed sensing
Device 19, the near front wheel wheel speed sensors 21 and off-front wheel wheel speed sensors 23.Solenoid valve block includes high-speed switch electromagnetic valve 11, first
Magnetic valve 14, the second magnetic valve 15, the 3rd magnetic valve 24, the 4th magnetic valve 25, oil return solenoid valve 26 and switching solenoid valve 27.Wheel
Cylinder includes left back wheel cylinder 16, off hind wheel cylinder 18, left front wheel cylinder 20 and off-front wheel cylinder 22.
Wherein, brake pedal 1 is connected with two-chamber piston cylinder 4 by piston rod piece.The liquid outlet of liquid storage lubricating cup 3 is lived with two-chamber
The upper inlet of plug cylinder 4 is connected.The back cavity of two-chamber piston cylinder 4 is connected with pedal force simulator 5 by pipeline, two-chamber piston cylinder 4
Ante-chamber be connected with the inlet of switching solenoid valve 27.The rotating shaft of motor 7 is connected with the plunger of hydraulic pump 8.The feed liquor of hydraulic pump 8
Mouth is connected by the first check valve 6 with the liquid outlet of liquid storage lubricating cup 3, and the liquid outlet of hydraulic pump 8 is by the second check valve 30 and height
The liquid outlet of accumulator 9 is pressed to be connected.The inlet of high-speed switch electromagnetic valve 11 is connected with the liquid outlet of high pressure accumulator 9, at a high speed
The liquid outlet of switch electromagnetic valve 11 liquid outlet, the liquid outlet of oil return solenoid valve 26, hydraulic retarding respectively with switching solenoid valve 27
The inlet of device 13, the inlet of the first magnetic valve 14, the inlet of the second magnetic valve 15, the inlet of the 3rd magnetic valve 24,
The inlet connection of the 4th magnetic valve 25.The inlet of overflow valve 12 is connected with the liquid outlet of high pressure accumulator 9, overflow valve 12
Liquid outlet is connected with the inlet of the first check valve 6.The inlet of oil return solenoid valve 26 is connected with the liquid outlet of liquid storage lubricating cup 3.
The liquid outlet of the first magnetic valve 14 is connected with the inlet of left back wheel cylinder 16, liquid outlet and the off hind wheel cylinder 18 of the second magnetic valve 15
Inlet be connected, the liquid outlet of the 3rd magnetic valve 24 is connected with the inlet of left front wheel cylinder 20, and the 4th magnetic valve 25 goes out liquid
Mouth is connected with the inlet of off-front wheel cylinder 22.Hydraulic retarder 13 is arranged on the liquid outlet of connection high-speed switch electromagnetic valve 11, cuts
The liquid outlet of magnetic valve 27, the liquid outlet of oil return solenoid valve 26, the inlet of the first magnetic valve 14, the second magnetic valve 15 is changed to enter
On the pipeline of the inlet of liquid mouthful, the inlet of the 3rd magnetic valve 24 and the 4th magnetic valve 25, its effect is buffer-braking loop
Interior pressure oscillation, reduces the compression shock to pipeline, while being conducive to protecting each magnetic valve.
Brake-pedal-travel sensor 2 is arranged on brake pedal 1, and its output end is connected with electronic control unit (ECU),
Stroke for gathering brake pedal 1, and the signal that will be collected is sent to electronic control unit.Brake-pedal-travel sensor
2 using the present vehicle-mounted corresponding sensor of line control brake system.
Pressure sensor 10 is arranged on the input of the second check valve 30.The output end of the second check valve 30 and hydraulic pump 8
Output end is connected.Pressure sensor 10 uses Universal pressure sensor.
Left rear wheel wheel speed sensors 17, off hind wheel wheel speed sensors 19, the near front wheel wheel speed sensors 21 and off-front wheel wheel speed
Sensor 23 is separately mounted on left rear wheel, off hind wheel, the near front wheel and off-front wheel, and its output end connects with electronic control unit
Connect, for gathering left rear wheel, off hind wheel, the near front wheel and the wheel speed signal of off-front wheel, and send it to electronic control unit.It is left
Trailing wheel wheel speed sensors 17, off hind wheel wheel speed sensors 19, the near front wheel wheel speed sensors 21 and off-front wheel wheel speed sensors 23 are adopted
With existing vehicle wheel speed sensor.
Brake pedal 1, brake-pedal-travel sensor 2, liquid storage lubricating cup 3, two-chamber piston cylinder 4, check valve, motor 7, hydraulic pressure
Pump 8, high pressure accumulator 9, pressure sensor 10, high-speed switch electromagnetic valve 11, overflow valve 12, hydraulic retarder 13, first are unidirectional
Valve 6, the second check valve 30, the first magnetic valve 14, the second magnetic valve 15, the 3rd magnetic valve 24, the 4th magnetic valve 25, left back wheel cylinder
16th, off hind wheel cylinder 18, left front wheel cylinder 20 and off-front wheel cylinder 22, oil return solenoid valve 26 and switching solenoid valve 27 are existing ripe product
Product, are commercially available.The connected mode of brake pedal 1 and pedal force simulator 5 is prior art.Electronic control unit,
Brake pedal 1, pedal force simulator 5 are prior art, and the function that can be realized according to it is realized using prior art.
Below to of the invention with the fine adjustable integrated type electrical multifunctional hydraulic braking system of main hydraulic circuit pressure
The course of work of system is described further：
1st, during conventional brake, driver's brake pedal 1, now brake-pedal-travel sensor 2 its signal is transmitted to
Electronic control unit (ECU), before calculating left back wheel cylinder 16, off hind wheel cylinder 18, left front wheel cylinder 20 and the right side by electronic control unit
The goal pressure of wheel cylinder 22, now electronic control unit is according to pressure sensor 10 and the signal of brake-pedal-travel sensor 2
Switching solenoid valve 27 and oil return solenoid valve 26 are closed, high-speed switch electromagnetic valve 11, the first magnetic valve 14, the second magnetic valve is opened
Four wheel cylinders are pressurized to reach goal pressure by the 15th, the 3rd magnetic valve 24 and the 4th magnetic valve 25.And in two-chamber piston cylinder 4
Brake fluid is then flow in pedal force simulator 5, realizes brake force simulation.During pressurize, electronic control unit closing high-speed switch
Magnetic valve 11, switching solenoid valve 27 and oil return solenoid valve 26, open the first magnetic valve 14, the second magnetic valve 15, the 3rd magnetic valve
24 and the 4th magnetic valve 25.During decompression, electronic control unit closing high-speed switch electromagnetic valve 11 and switching solenoid valve 27 open the
One magnetic valve 14, the second magnetic valve 15, the 3rd magnetic valve 24, the 4th magnetic valve 25 and oil return solenoid valve 26.
If in conventional brake, it is necessary to antero posterior axis brake pressure is distributed by a certain percentage, such as according to I curves（Before preferably
Rear axle brake pressure distribution curve）Distribution, can control the first magnetic valve 14, second magnetic valve 15 to hold by electronic control unit
The continuous opening time is realized.
When the 2nd, braking in the case of wheel anti-lock, on the basis of conventional brake, electronic control unit is by left rear wheel
The collection of wheel speed sensors 17, off hind wheel wheel speed sensors 19, the near front wheel wheel speed sensors 21 and off-front wheel wheel speed sensors 23
Signal is calculated.If off-front wheel enters slip state, off-front wheel wheel cylinder 21 is depressurized, electronic control unit will be closed
The first magnetic valve 14, the second magnetic valve 15, the 3rd magnetic valve 24 and high-speed switch electromagnetic valve 11 are closed, and opens the 4th magnetic valve
25, then oil return solenoid valve 26 carries out pressurize to it（The magnetic valve 25 of semi-closure the 4th）Or supercharging（Close the first magnetic valve 14,
Two magnetic valves 15, the 3rd magnetic valve 24 and oil return solenoid valve 26, and open high-speed switch electromagnetic valve 11, the 4th magnetic valve 25）；If
Enter slip state in the presence of many wheels, then electronic control unit is controlled each pressure of wheel braking cylinder successively by control logic, can be once
Property complete to front axle（Or rear axle）Or the pressure regulation of single wheel cylinder, it is also possible to completed by adjusting several times in circulation, it is former
Reason increases with single-wheel, subtracts, the principle of pressurize is consistent.
3rd, in the case of wheel Anti-slip regulation, wheel anti-lock situation is similar during with braking, and electronic control unit is by right
Left rear wheel wheel speed sensors 17, off hind wheel wheel speed sensors 19, the near front wheel wheel speed sensors 21 and off-front wheel wheel speed sensors 23
The signal of collection is calculated, if single-wheel enters slip state, electronic control unit is increased to the wheel cylinder, subtracted, pressurize control
System, if many wheels enter slip state, electronic control unit can disposably complete the pressure regulation to certain axle or certain wheel wheel cylinder, also may be used
So that by adjusting completion in circulation several times, its principle is with wheel anti-lock situation when braking.
4th, in the case that electronic stability is controlled, after vehicle enters instability status, electronic control unit is by each sensing
Device and pressure of wheel braking cylinder calculate each target wheel wheel cylinder needs the pressure of regulation, then wheel cylinder is increased, is subtracted, pressure maintaining period, its
Principle is with wheel anti-lock situation when braking.
5th, in the case of active brake is intervened, after electronic control unit calculates wheel cylinder goal pressure, even if driver does not have
There is any brake operating, this system can also carry out active boost to each wheel cylinder, and its process is as described in 1~4.
6th, in the case of Brake energy recovery, though driver has operated to brake pedal, this brakes can still prolong
The time of slow hydraulic braking even makes hydraulic braking not work in whole process.
7th, brake piping fail in the case of, due to switching solenoid valve 27, the first magnetic valve 14, the second magnetic valve 15,
3rd magnetic valve 24, the normally open valve of the 4th magnetic valve 25, therefore when driver's brake pedal 1, brake fluid is a part of from two-chamber
Piston cylinder 4 is flowed into pedal force simulator 5, another part through switching solenoid valve 27, the first magnetic valve 14, the second magnetic valve 15,
3rd magnetic valve 24, the 4th magnetic valve 25 separately flow into the near front wheel wheel cylinder, off-front wheel wheel cylinder, left rear wheel wheel cylinder, off hind wheel wheel cylinder,
To realize braking.
As shown in Figure 2,3, in second and third two embodiments of the invention, two-chamber piston cylinder 4 uses integrated form piston respectively
Cylinder 28, single-chamber piston cylinder 29 are substituted, the inlet of switching solenoid valve 27 respectively with integrated form piston cylinder 28, single-chamber piston cylinder 29
Cavity is connected.Integrated form piston cylinder 28 integrates brake pedal force simulator 5 so that structure is compacter；Single-chamber is lived
Only one of which chamber in plug cylinder 29, size is relatively small, and brake pedal force simulator 5 is external, is connected with the outlet of piston cylinder 29, has
Have the advantages that easy to maintenance.Integrated form piston cylinder 28 and single-chamber piston cylinder 29 can be according to existing master cylinder design and manufacturing technology realities
Existing its function.
As shown in figure 4, in the 4th embodiment of the invention, the front/back cavity of two-chamber piston cylinder 4 switches with two respectively
The inlet of magnetic valve 27 is connected, and the liquid outlet of high pressure accumulator 9 is connected with the inlet of two high-speed switch electromagnetic valves 11, and two
Inlet of the liquid outlet of individual high-speed switch electromagnetic valve 11 respectively with two hydraulic retarders 13 is connected, a hydraulic retarder 13
Liquid outlet be connected with the inlet of the first magnetic valve 14, the second magnetic valve 15, another electromagnetism of hydraulic retarder 13 and the 3rd
Valve 24, the inlet of the 4th magnetic valve 25 are connected, at the same two liquid outlets of hydraulic retarder 13 respectively with two oil return valves 26
Inlet be connected, form two major loops, improve the response time of pressure of wheel braking cylinder Time-sharing control, and realize that double loop sets
Meter, improves the reliability of system.
Integrated form piston cylinder 28 and single-chamber piston cylinder 29 can realize its function according to existing master cylinder design and manufacturing technology
.
Present invention application high pressure accumulator 9 improves brake system response as power source, makes a concrete analysis of as follows
In formula, Q flows through the flow of magnetic valve for liquid；CDIt is discharge coefficient；A is magnetic valve flow area；Δ P is electromagnetism
The pressure difference at valve two ends；ρ is brake fluid density；
Found out by formula (1), by increase magnetic valve flow area and improve high pressure accumulator pressure can raising system
Response.
After using system of the invention, each pressure of wheel braking cylinder is controlled successively by control logic using electronic control unit
System, each wheel cylinder need to only be connected with a magnetic valve, simplify the arrangement of brake piping, reduce magnetic valve quantity.
When hydraulic regulation Module Fail, brake pedal is directly connected with piston cylinder, is capable of achieving partial brake efficiency, it is to avoid
The entirely ineffective loss for bringing of brakes；
The function of the achievable line control brake system of the present invention, control is simple, and convenient integrated with other systems.
Claims (7)
1. it is a kind of that there is the fine adjustable integrated electronic multifunctional hydraulic brakes of major loop pressure, including brake pedal (1),
Liquid storage lubricating cup (3), piston cylinder, pedal force simulator (5), motor (7), hydraulic pump (8), high pressure accumulator (9), overflow valve
(12), sensor group, solenoid valve block and wheel cylinder；Solenoid valve block includes high-speed switch electromagnetic valve (11), the first magnetic valve (14), the
Two magnetic valves (15), the 3rd magnetic valve (24), the 4th magnetic valve (25), oil return solenoid valve (26) and switching solenoid valve (27)；Wheel
Cylinder includes left back wheel cylinder (16), off hind wheel cylinder (18), left front wheel cylinder (20) and off-front wheel cylinder (22)；Check valve includes that first is unidirectional
Valve (6) and the second check valve (30)；
Wherein, inlet of the cavity of piston cylinder respectively with pedal force simulator (5), switching solenoid valve (27) is connected；High pressure stores
Can the liquid outlet liquid outlet respectively with hydraulic pump (8) of device (9), the inlet of high-speed switch electromagnetic valve (11) be connected；Open at a high speed
The liquid outlet of powered-down magnet valve (11), the liquid outlet of switching solenoid valve (27), liquid outlet, the hydraulic retarder of oil return solenoid valve (26)
(13) inlet, the inlet of the first magnetic valve (14), the inlet of the second magnetic valve (15), the 3rd magnetic valve (24) are entered
Liquid mouthful, the inlet of the 4th magnetic valve (25) are connected；The liquid outlet phase of the inlet of oil return solenoid valve (26) and liquid storage lubricating cup (3)
Even；The liquid outlet of the first magnetic valve (14) is connected with the inlet of left back wheel cylinder (16), the liquid outlet of the second magnetic valve (15) with
The inlet of off hind wheel cylinder (18) is connected, and the liquid outlet of the 3rd magnetic valve (24) is connected with the inlet of left front wheel cylinder (20), the
The liquid outlet of four magnetic valves (25) is connected with the inlet of off-front wheel cylinder (22)；
Described piston cylinder is two-chamber piston cylinder (4), and brake pedal (1) is connected with two-chamber piston cylinder (4) by piston rod piece；Storage
The liquid outlet of liquid lubricating cup (3) is connected with the upper inlet of two-chamber piston cylinder (4)；The back cavity of two-chamber piston cylinder (4) and pedal force mould
Intend device (5) connection, the ante-chamber of two-chamber piston cylinder (4) is connected with the inlet of switching solenoid valve (27)；
It is described also to include two hydraulic retardings with the fine adjustable integrated electronic multifunctional hydraulic brakes of major loop pressure
Device (13), the inlet of two liquid outlets of high-speed switch electromagnetic valve (11) respectively with two hydraulic retarders (13) is connected, and one
The liquid outlet of individual hydraulic retarder (13) is connected with the inlet of the first magnetic valve (14), the second magnetic valve (15), another liquid
Pressure retarder (13) is connected with the inlet of the 3rd magnetic valve (24), the 4th magnetic valve (25), while two hydraulic retarders
(13) inlet of the liquid outlet respectively with two oil return valves (26) is connected, and forms two major loops.
2. according to claim 1 a kind of with the fine adjustable integrated electronic multifunctional hydraulic braking system of major loop pressure
System, it is characterised in that：It also includes hydraulic retarder (13), and hydraulic retarder (13) is installed in connection high-speed switch electromagnetic valve
(11) liquid outlet, the liquid outlet of switching solenoid valve (27), the liquid outlet of oil return solenoid valve (26), the first magnetic valve (14) are entered
The inlet of liquid mouth, the inlet of the second magnetic valve (15), the inlet of the 3rd magnetic valve (24) and the 4th magnetic valve (25)
On pipeline.
3. according to claim 1 a kind of with the fine adjustable integrated electronic multifunctional hydraulic braking system of major loop pressure
System, it is characterised in that：Described sensor group includes brake-pedal-travel sensor (2), pressure sensor (10), left rear wheel wheel
Fast sensor (17), off hind wheel wheel speed sensors (19), the near front wheel wheel speed sensors (21) and off-front wheel wheel speed sensors (23)；
Brake-pedal-travel sensor (2) is on brake pedal (1)；Pressure sensor 10 is arranged on the defeated of the second check valve (30)
Enter end；Left rear wheel wheel speed sensors (17), off hind wheel wheel speed sensors (19), the near front wheel wheel speed sensors (21) and off-front wheel wheel
Fast sensor (23) is separately mounted on left rear wheel, off hind wheel, the near front wheel and off-front wheel；The output end of the sensor with electricity
Sub-control unit is connected.
4. according to claim 1 a kind of with the fine adjustable integrated electronic multifunctional hydraulic braking system of major loop pressure
System, it is characterised in that：It also includes the first check valve (6) and the second check valve (30)；Brake pedal (1) and two-chamber piston cylinder
(4) it is connected by piston rod piece；The liquid outlet of liquid storage lubricating cup (3) is connected with the upper inlet of two-chamber piston cylinder (4)；Two-chamber is lived
The back cavity of plug cylinder (4) is connected with pedal force simulator (5), the ante-chamber of two-chamber piston cylinder (4) and the feed liquor of switching solenoid valve (27)
Mouth is connected；The inlet of hydraulic pump (8) is connected by the first check valve (6) with the liquid outlet of liquid storage lubricating cup (3), hydraulic pump (8)
Liquid outlet be connected with the liquid outlet of high pressure accumulator (9) by the second check valve (30).
5. according to claim 1 and 2 a kind of with the fine adjustable integrated electronic multifunctional hydraulic system of major loop pressure
Dynamic system, it is characterised in that：Described piston cylinder is two-chamber piston cylinder (4), the quantity of described high-speed switch electromagnetic valve (11)
It is 2, the liquid outlet of high pressure accumulator (9) is connected with the inlet of two high-speed switch electromagnetic valves (11), a speed-sensitive switch
The liquid outlet of magnetic valve (11) is connected with the inlet of the first magnetic valve (14), the second magnetic valve (15), another speed-sensitive switch
The liquid outlet of magnetic valve (11) is connected with the inlet of the 3rd magnetic valve (24), the 4th magnetic valve (25), while two high speeds are opened
Inlet of the liquid outlet of powered-down magnet valve (11) respectively with two oil return valves (26) is connected, and forms two major loops.
6. according to claim 1 a kind of with the fine adjustable integrated electronic multifunctional hydraulic braking system of major loop pressure
System, it is characterised in that：Described piston cylinder is integrated form piston cylinder (28), brake pedal (1) and integrated form piston cylinder (28) phase
Even；The liquid outlet of liquid storage lubricating cup (3) is connected with the upper inlet of integrated form piston cylinder (28)；The cavity of integrated form piston cylinder (28)
Inlet with switching solenoid valve (27) is connected.
7. according to claim 1 a kind of with the fine adjustable integrated electronic multifunctional hydraulic braking system of major loop pressure
System, it is characterised in that：Described piston cylinder is single-chamber piston cylinder (29), and brake pedal (1) is connected with single-chamber piston cylinder (29)；Storage
The liquid outlet of liquid lubricating cup (3) is connected with the upper inlet of single-chamber piston cylinder (29)；The cavity of single-chamber piston cylinder (29) and switching electricity
The inlet of magnet valve (27) is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310428992.3A CN104442781B (en) | 2013-09-20 | 2013-09-20 | Integrated electronic hydraulic multi-functional brake system with fine-adjustable major loop pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310428992.3A CN104442781B (en) | 2013-09-20 | 2013-09-20 | Integrated electronic hydraulic multi-functional brake system with fine-adjustable major loop pressure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104442781A CN104442781A (en) | 2015-03-25 |
| CN104442781B true CN104442781B (en) | 2017-05-17 |
Family
ID=52889762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310428992.3A Expired - Fee Related CN104442781B (en) | 2013-09-20 | 2013-09-20 | Integrated electronic hydraulic multi-functional brake system with fine-adjustable major loop pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104442781B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105946837A (en) * | 2016-06-29 | 2016-09-21 | 吉林大学 | Electronic hydraulic braking system with multiple working modes |
| CN106740787A (en) * | 2017-01-09 | 2017-05-31 | 吉林大学 | Line control brake system based on time-shared serial with parallel control simultaneously |
| CN108501921B (en) * | 2018-05-04 | 2019-04-02 | 吉林大学 | A kind of hydraulic line control brake system and its brake control method with double pressure sources |
| KR102245383B1 (en) * | 2019-08-23 | 2021-04-28 | 현대모비스 주식회사 | Electronic hydraulic brake device |
| CN113734126B (en) * | 2020-05-29 | 2023-03-24 | 比亚迪股份有限公司 | Braking device and vehicle |
| CN114684256B (en) * | 2020-12-30 | 2023-07-11 | 比亚迪股份有限公司 | Steering braking system and vehicle with same |
| CN113147705B (en) * | 2021-06-04 | 2022-05-27 | 吉林大学 | Brake system for unmanned vehicle |
| CN113264027B (en) * | 2021-07-02 | 2022-06-14 | 清华大学 | Dual-redundancy type linear control hydraulic braking system and control method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103213570A (en) * | 2013-04-26 | 2013-07-24 | 吉林大学 | Braking control device applied to automobile braking energy recovery |
| CN103303292A (en) * | 2012-03-13 | 2013-09-18 | 株式会社万都 | Integrated electronic hydraulic brake system |
| CN203651745U (en) * | 2013-09-20 | 2014-06-18 | 吉林大学 | Integrated multifunctional electro-hydraulic braking system with fine adjustable major loop pressure |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3918335B2 (en) * | 1998-12-22 | 2007-05-23 | 日産自動車株式会社 | Brake control device |
| DE20212236U1 (en) * | 2002-08-08 | 2002-10-02 | Bosch Gmbh Robert | Hydraulic unit for a vehicle brake system with an anti-lock device |
| KR20050100142A (en) * | 2004-04-13 | 2005-10-18 | 현대모비스 주식회사 | Brake system for electric vehicle |
| JP2006335146A (en) * | 2005-05-31 | 2006-12-14 | Toyota Motor Corp | Regeneration-coordinated hydraulic braking system |
| US20080179944A1 (en) * | 2007-01-29 | 2008-07-31 | Continental Teves, Inc. | Hydraulic anti-lock brake system |
| CN102114834B (en) * | 2011-02-15 | 2013-02-13 | 清华大学 | X-type pipeline layout energy feedback type hydraulic antilock brake system for electric vehicle |
-
2013
- 2013-09-20 CN CN201310428992.3A patent/CN104442781B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103303292A (en) * | 2012-03-13 | 2013-09-18 | 株式会社万都 | Integrated electronic hydraulic brake system |
| CN103213570A (en) * | 2013-04-26 | 2013-07-24 | 吉林大学 | Braking control device applied to automobile braking energy recovery |
| CN203651745U (en) * | 2013-09-20 | 2014-06-18 | 吉林大学 | Integrated multifunctional electro-hydraulic braking system with fine adjustable major loop pressure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104442781A (en) | 2015-03-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104442781B (en) | Integrated electronic hydraulic multi-functional brake system with fine-adjustable major loop pressure | |
| CN203651745U (en) | Integrated multifunctional electro-hydraulic braking system with fine adjustable major loop pressure | |
| CN108501921B (en) | A kind of hydraulic line control brake system and its brake control method with double pressure sources | |
| CN102822025B (en) | Method for operating a brake system for a motor vehicle and brake system | |
| CN103552556B (en) | A kind of double-motor line control brake system with multi-operation mode and voltage regulation mode | |
| CN103552557B (en) | There is the Electro-hydraulic brake system of electrodynamic braking power-assisted and brake-by-wire function | |
| CN102398582B (en) | For the brake system of vehicle | |
| CN107738638A (en) | A kind of composite braking system with brake-by-wire function | |
| US9016804B2 (en) | Brake system for a motor vehicle and method for operating a brake system | |
| CN104149765B (en) | Car electronic and hydraulic brake system capable of realizing time-sharing control | |
| CN103770770B (en) | Integrated form automatic parking brake device | |
| CN109455174A (en) | A kind of line traffic control brake fluid system and its brake control method using high pressure accumulator | |
| CN105189219A (en) | Vehicle brake device | |
| CN109927698A (en) | A kind of line traffic control electro-hydraulic brake system and braking method | |
| CN104943672A (en) | Hydraulic brake system and method with double hydraulic cylinder four-wheel failure backup | |
| CN101987614A (en) | Electro-hydraulic brake system | |
| CN105946837A (en) | Electronic hydraulic braking system with multiple working modes | |
| CN104228797A (en) | Brake Control Apparatus | |
| CN102582601A (en) | Electric-hydro complex brake system employing integral brake master cylinder assembly | |
| CN208530546U (en) | A kind of vehicle integration electric servo brake system | |
| CN106427964A (en) | Control-by-wire hydraulic braking system and control method thereof | |
| CN103241228A (en) | Brake energy recovery system with pedal travel simulator, and control method of brake energy recovery system | |
| US9963134B2 (en) | Method for controlling a brake system, and brake system in which the method is carried out | |
| CN104837692A (en) | Method for operating braking system of vehicle and control device for braking system of vehicle | |
| CN107891850A (en) | A kind of integrated electric hydraulic brake system with decoupling function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170517 Termination date: 20190920 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |