CN207631211U - A kind of integrated electric hydraulic brake system with decoupling function - Google Patents
A kind of integrated electric hydraulic brake system with decoupling function Download PDFInfo
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- CN207631211U CN207631211U CN201721768690.0U CN201721768690U CN207631211U CN 207631211 U CN207631211 U CN 207631211U CN 201721768690 U CN201721768690 U CN 201721768690U CN 207631211 U CN207631211 U CN 207631211U
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Abstract
Disclosed by the utility model is a kind of integrated electric hydraulic brake system with decoupling function,Including brake pedal,Master cylinder,Pedal simulator,Direct current generator builds die block,Brake fluid oil pot,Hydraulic control module,Hydrostatic sensor and displacement sensor,It is characterized in that,The brake pedal,Master cylinder,Pedal simulator,Direct current generator builds die block,Brake fluid oil pot,Hydraulic control module,Hydrostatic sensor and displacement sensor are arranged on brake actuator pedestal,The hydraulic control module includes pressure charging valve,Pressure reducing valve,Normally open solenoid valve and normally closed solenoid valve,The brake fluid oil pot is built die block with master cylinder and direct current generator respectively and is connect,The direct current generator is built die block and is connect with hydraulic control module by normally closed solenoid valve,The master cylinder is connect by normally open solenoid valve with hydraulic control module,The pedal simulator is connect with master cylinder,Institute's displacement sensors and hydrostatic sensor are connect with ECU.
Description
Technical field
The utility model is related to a kind of brake system of car, more particularly, to a kind of integrated electrical liquid with decoupling function
Braking system.
Background technology
With the continuous reinforcement of people's environmental consciousness, the use of the universal and related new technology of new-energy automobile is necessarily to become
Gesture.Following automobile will be to miniaturization, lightness, energy conservation and environmental protectionization development.In the operating mode in city, automobile often takes braking
Measure, and then mass energy is consumed in vain, especially pure electric automobile eliminates engine, without vacuum booster vacuum
Source, it is difficult to realize transmission brake boost.
Utility model content
Technical problem to be solved in the utility model is to overcome the deficiencies of the prior art and provide one kind carrying decoupling function
Integrated electric hydraulic brake system, have good pedal sense and braking effect and vehicle body stability.
In order to solve above-mentioned purpose, the technical solution adopted in the utility model is：A kind of integrated form with decoupling function
Electro-hydraulic brake system, including brake pedal, master cylinder, pedal simulator, direct current generator build die block, brake fluid oil pot,
Hydraulic control module, hydrostatic sensor and displacement sensor, the brake pedal are connect with master cylinder, which is characterized in that institute
It states brake pedal, master cylinder, pedal simulator, direct current generator and builds die block, brake fluid oil pot, hydraulic control module, liquid
Pressure sensor and displacement sensor are arranged on brake actuator pedestal, and the hydraulic control module includes pressure charging valve, decompression
Valve, normally open solenoid valve and normally closed solenoid valve, the brake fluid oil pot are built die block with master cylinder and direct current generator respectively and are connect,
The direct current generator is built die block and is connect with hydraulic control module by normally closed solenoid valve, and the master cylinder passes through normally opened electromagnetism
Valve is connect with hydraulic control module, and the pedal simulator is connect with master cylinder, institute's displacement sensors and hydraulic sensing
Device is connect with ECU.
Pressure charging valve in the hydraulic control module includes pressure charging valve NO1, pressure charging valve NO2, pressure charging valve NO3 and pressure charging valve
NO4, the normally open solenoid valve include normally open solenoid valve VO1 and normally open solenoid valve VO2, and the normally closed solenoid valve includes normally closed electromagnetism
Valve VC1 and normally closed solenoid valve VC2, the pressure charging valve NO1 and pressure charging valve NO2 build pressure by normally closed solenoid valve VC1 and direct current generator
Module connects, and the pressure charging valve NO3 and pressure charging valve NO4 build die block with direct current generator by normally closed solenoid valve VC2 and connect, described
The pressure charging valve NO1 and pressure charging valve NO2 is connect by normally open solenoid valve VO1 with master cylinder, the pressure charging valve NO3 and pressure charging valve
NO4 is connect by normally open solenoid valve VO2 with master cylinder.
The pedal simulator is set between master cylinder and normally open solenoid valve VO2, and the pedal simulator includes
Pedal simulator, normally closed control valve VC3 and hydraulically-controlled one-way valve A, described one end normally closed control valve VC3 respectively with master cylinder and often
Open electromagnetic valve VO2 connections, the other end are connect with pedal simulator, and the hydraulically-controlled one-way valve A is set to master cylinder and pedal is simulated
Between device.
The direct current generator builds die block and includes hydraulically-controlled one-way valve B, builds pressure chamber and direct current generator, and the pressure chamber of building passes through liquid
Pressure check valve B is connect with brake fluid oil pot, and the pressure chamber of building is connect with normally closed solenoid valve VC1 and normally closed solenoid valve VC2.
The master cylinder includes the first brake chamber and the second brake chamber, includes corresponding time in two brake chambers
Position spring and brake piston, two brake chambers are connect with brake fluid oil pot, and the first brake chamber simulates with pedal fill respectively
It sets and is connected with normally open solenoid valve VO2, the second brake chamber is connect with normally open solenoid valve VO1.
The utility model has the beneficial effects that：（1）Do not need vacuum source, structure is compacter, and integrated level is high, reduce at
This；（2）Since brake fluid pressure directly applies from motor, therefore have better response speed, can obtain preferably braking away from
From；（3）Due to having pedal simulator, brake system to belong to decoupled state, better pedal body can be provided for driver
It tests；（4）Brake fluid pressure can be accurately controlled by various sensors and associated solenoid valve actuator, better braking is provided
Performance and stability；（5）Coordinated with new-energy automobile driving motor, it can be achieved that energy regeneration control for brake, save energy,
It is more environmentally-friendly.
Description of the drawings
Fig. 1 is the utility model braking system schematic diagram；
Fig. 2 is the utility model assembling structure schematic diagram.
Specific implementation mode
With reference to attached drawing, a kind of integrated electric hydraulic brake system with decoupling function, including brake pedal 1, master cylinder
2, pedal simulator 3, direct current generator build die block 4, brake fluid oil pot 5, hydraulic control module 6, displacement sensor 7 and hydraulic pressure
Sensor 8, the brake pedal 1, master cylinder 2, pedal simulator 3, direct current generator build die block 4, brake fluid oil pot 5,
Hydraulic control module 6, displacement sensor 7 and hydrostatic sensor 8 are arranged on brake actuator pedestal 30, the hydraulic control
Module includes pressure charging valve, pressure reducing valve, normally open solenoid valve and normally closed solenoid valve, and the brake pedal 1 is connect with master cylinder 2, institute
It states brake fluid oil pot 5 and builds die block 4 with master cylinder 2 and direct current generator respectively and connect, the direct current generator is built die block 4 and passed through
Normally closed solenoid valve is connect with hydraulic control module 6, and the master cylinder 2 is connect by normally open solenoid valve with hydraulic control module 6,
The pedal simulator 3 is connect with master cylinder 2, and institute's displacement sensors and hydrostatic sensor are connect with ECU 16.
The pedal travel of displacement sensor acquisition driver simultaneously feeds back to ECU, and ECU judges driver intention and according to other
Signal（Acceleration, speed, deflection angle etc.）Brake fluid pressure needed for four-wheel is calculated, and by controlling direct current generator to system
It carries out building pressure, while the break-make by controlling solenoid valve, brake fluid pressure distribution is carried out to four-wheel respectively.
Hydrostatic sensor is used to detect the real-time hydraulic pressure of master cylinder, is on the one hand used to feed back to ECU to judge driver
On the other hand braking intention is used for signal piping safety, system is with the presence or absence of leakage.
Pressure charging valve in the hydraulic control module includes pressure charging valve NO1, pressure charging valve NO2, pressure charging valve NO3 and pressure charging valve
NO4, the normally open solenoid valve include normally open solenoid valve VO1 and normally open solenoid valve VO2, and the normally closed solenoid valve includes normally closed electromagnetism
Valve VC1 and normally closed solenoid valve VC2, the pressure charging valve NO1 and pressure charging valve NO2 build pressure by normally closed solenoid valve VC1 and direct current generator
Module 4 connects, and the pressure charging valve NO3 and pressure charging valve NO4 build die block 4 with direct current generator by normally closed solenoid valve VC2 and connect, institute
It states the pressure charging valve NO1 and pressure charging valve NO2 to connect with master cylinder 2 by normally open solenoid valve VO1, the pressure charging valve NO3 and increasing
Pressure valve NO4 is connect by normally open solenoid valve VO2 with master cylinder 2.
Pressure charging valve NO1 connection wheel wheel cylinders A 10, pressure charging valve NO2 connection wheel wheel cylinders B 11, pressure charging valve NO3 connection wheels
Wheel cylinder C 12, pressure charging valve NO4 connection wheel wheel cylinders D 13 are equipped with decompression between the brake fluid oil pot 5 and wheel wheel cylinder A 10
Valve NC1 is equipped with pressure reducing valve NC2, the brake fluid oil pot 5 and vehicle wheel between the brake fluid oil pot 5 and wheel wheel cylinder B 11
It is equipped with pressure reducing valve NC3 between cylinder C 12, pressure reducing valve NC4, vehicle wheel are equipped between the brake fluid oil pot 5 and wheel wheel cylinder D 13
Cylinder A 10 is depressurized by pressure reducing valve NC1, and wheel wheel cylinder B 11 is depressurized by pressure reducing valve NC2, and wheel wheel cylinder C 12 passes through pressure reducing valve
NC3 is depressurized, and wheel wheel cylinder D 13 is depressurized by pressure reducing valve NC4.
The pedal simulator 3 is set between master cylinder 2 and normally open solenoid valve VO2, and the pedal simulator 3 wraps
Pedal simulator 301, normally closed control valve VC3 and hydraulically-controlled one-way valve A 302 are included, described one end normally closed control valve VC3 is led with braking
Cylinder 2 is connected with normally open solenoid valve VO2, and the other end is connect with pedal simulator 301, and the hydraulically-controlled one-way valve A 302 is set to braking
Between master cylinder 2 and pedal simulator 301, the pedal simulator provides the simulation of pedal for driver.
The direct current generator builds die block 4 and includes hydraulically-controlled one-way valve B 401, builds pressure chamber 402 and direct current generator 403, described
It builds pressure chamber 402 to connect with brake fluid oil pot 5 by hydraulically-controlled one-way valve B 401, prevents the brake fluid for building pressure intracavitary from reversely floing back towards braking
Liquid oil can, the pressure chamber 402 of building are connect with normally closed solenoid valve VC1 and normally closed solenoid valve VC2, and it is defeated that direct current generator 403 receives ECU
It after entering signal, carries out rotation and builds pressure, brake fluid flows to from brake fluid oil pot and builds pressure chamber, and the voltage-controlled molding of chamber influent is pressed from building
Block.
The master cylinder 2 includes the first brake chamber 201 and the second brake chamber 202, includes in two brake chambers
Corresponding return spring and brake piston, two brake chambers are connect with brake fluid oil pot 5, the first brake chamber 201 with step on
Plate simulator 3 is connected with normally open solenoid valve VO2, and the second brake chamber 202 is connect with normally open solenoid valve VO1, and brake pedal is applied
Plus-pressure can drive brake piston to be pressed into brake chamber, normally closed if normally open solenoid valve VO1 and normally open solenoid valve VO2 are closed
Control valve VC3 is opened, and can brake fluid in brake fluid oil pot 5 be pressed into pedal simulator 3, if normally open solenoid valve VO1 and
Normally open solenoid valve VO2 is opened, and normally closed control valve VC3 is closed, and can brake fluid in brake fluid oil pot 5 be pressed into hydraulic control module
6。
The utility model is since with the presence of pedal simulator, driver is in decoupled state, i.e., normal shape with practical braking
Under state, the brake fluid pressure that driver applies is not directly placed on wheel wheel cylinder, and braking feel is provided by pedal simulator, practical to make
Hydrodynamic pressure is acted on by direct current generator and being generated, and the two is not directly linked.The brake of driver is intended to sense by pedal displacement
Device feeds back to ECU, and ECU carries out real-time control to motor, and then generates accurately practical brake fluid pressure, reaches deceleration, brakes mesh
's.
Conventional brake operation principle（Realize ABS anti-lock functions）：
Supercharging：When driver applies pressure to brake pedal, displacement sensor acquires stroke signal, normally open solenoid valve
VO1, normally open solenoid valve VO2 energizations action, cut off oil circuit, at the same time, normally closed solenoid valve VC1, normally closed solenoid valve VC2, normally closed
Solenoid valve VC3 energizations act, oil circuit conducting.Pedal master cylinder brake fluid flows into pedal simulator by normally closed solenoid valve VC3, will step on
Plate sense feeds back to driver（On wheel cylinder hydraulic pressure without influence）.ECU carries out brake fluid pressure judgement to the signal of acquisition, controls direct current
Machine carries out hydraulic booster, and brake fluid flows through normally closed solenoid valve VC1, normally closed solenoid valve VC2, pressure charging valve NO1, pressure charging valve NO2, supercharging
Valve NO3, pressure charging valve NO4 respectively brake four wheels.
Pressurize：When ECU judges that wheel tends to locking, pressure charging valve NO1, pressure charging valve NO2, pressure charging valve NO3, pressure charging valve NO4
Energization acts, and place oil circuit cut-out, wheel wheel cylinder brake fluid pressure remains unchanged.
Decompression：When wheel need to depressurize, pressure reducing valve NC1, pressure reducing valve NC2, pressure reducing valve NC3, pressure reducing valve NC4 energizations action, institute
It is connected in oil circuit, wheel cylinder hydraulic pressure is reduced, and brake fluid returns to brake fluid oil pot.
Automatic-boosting operation principle（Realize ESP Vehicle Stability Controls and emergency braking function）：
Supercharging：When ECU judgements need to carry out stability contorting or emergency braking, control is carried out to direct current generator and applies braking
Pressure, normally open solenoid valve VO1, normally open solenoid valve VO2 energizations action, cuts off oil circuit, at the same time, normally closed solenoid valve VC1, normally closed
Solenoid valve VC2 energizations act, and four wheels are braked in oil circuit conducting.
Pressurize：When ECU judges that wheel tends to locking, pressure charging valve NO1, pressure charging valve NO2, pressure charging valve NO3, pressure charging valve NO4
Energization acts, and place oil circuit cut-out, wheel wheel cylinder brake fluid pressure remains unchanged.
Decompression：When wheel need to depressurize, pressure reducing valve NC1, pressure reducing valve NC2, pressure reducing valve NC3, pressure reducing valve NC4 energizations action, institute
It is connected in oil circuit, wheel cylinder hydraulic pressure is reduced, and brake fluid returns to brake fluid oil pot.
Failure mode operation principle：
Direct current generator, switching control pilot VC3 are simultaneously in the case of dead electricity：In the case that ECU detects direct current generator dead electricity, directly
Galvanic electricity machine will not play the role of supercharging, and switching control pilot VC3 has cut off the oil circuit of master cylinder and pedal simulator, braking
Liquid is flowed through normally open solenoid valve VO1, normally open solenoid valve VO2, pressure charging valve NO1, pressure charging valve NO2, pressure charging valve NO3, is increased by master cylinder
Pressure valve NO4 reaches four wheel wheel cylinders, realizes conventional brake or emergency braking, but the functions such as ABS, ESC cannot achieve at this time.
In the case of direct current generator dead electricity, the corresponding solenoid valve of four wheels can still act on, and suitably be controlled to vehicle wheel pressure
System.
Renewable braking operation principle：
When driver's normal brake application, ECU drives braking intention by acquiring sensor signal, to driver and predicts,
Required total brake force Tt is calculated, pedal simulator generates certain feel pressure.Vehicle ECU works special according to driving motor
Property, cell operating status calculates driving motor regenerative braking force Tr, passes through total brake force Tt and driving motor regenerative braking force
Tr is compared.Compare three kinds of operating modes：
1）Work as Tr<When Tt, need hydraulic braking force supplement to meet brake request at this time.Normally open solenoid valve VO1, normally opened electricity
Magnet valve VO2 is powered, and cuts off the oil circuit of master cylinder and wheel wheel cylinder.By normally closed electromagnetism VC3, pedal simulator and brake pedal
It is associated with, the size that control braking motor pushes master cylinder to provide in executing agency is（Tt-Tr）Brake force, pass through solenoid valve
Distribution is adjusted to four wheel braking forces.
2）As Tr=Tt, regenerative braking is just met for brake request at this time.ECU energy recovery procedures are judged, pedal
Simulator provides feel power, but direct current generator is failure to actuate, and brake fluid pressure is not provided.
3）Work as Tr>When Tt, regenerative braking force is more than required brake force at this time, needs at this time true according to SOC value of battery etc.
It is surely no to recover energy.Pedal simulator provides feel power, and ECU is judged that direct current generator is failure to actuate at this time, do not provide braking
Hydraulic pressure.
In conclusion the utility model can be independently controlled each wheel wheel cylinder brake fluid pressure, adopted using sensor
The signal of collection, ECU judge vehicle body stability, calculate to stablize the brake fluid pressure needed for vehicle body, ECU passes through to electromagnetism
Logic control between valve is, it can be achieved that ABS anti-locks, the functions such as ESC vehicle bodies stabilization.
Claims (5)
1. a kind of integrated electric hydraulic brake system with decoupling function, including brake pedal, master cylinder, pedal simulation dress
It sets, direct current generator builds die block, brake fluid oil pot, hydraulic control module, hydrostatic sensor and displacement sensor, the braking are stepped on
Plate is connect with master cylinder, which is characterized in that the brake pedal, master cylinder, pedal simulator, direct current generator build pressing mold
Block, brake fluid oil pot, hydraulic control module, hydrostatic sensor and displacement sensor are arranged on brake actuator pedestal, institute
It includes pressure charging valve, pressure reducing valve, normally open solenoid valve and normally closed solenoid valve to state hydraulic control module, the brake fluid oil pot respectively with system
Dynamic master cylinder is built die block with direct current generator and is connected, and the direct current generator builds die block and passes through normally closed solenoid valve and hydraulic control module
Connection, the master cylinder are connect by normally open solenoid valve with hydraulic control module, the pedal simulator and master cylinder
Connection, institute's displacement sensors and hydrostatic sensor are connect with ECU.
2. a kind of integrated electric hydraulic brake system with decoupling function according to claim 1, which is characterized in that described
Pressure charging valve in hydraulic control module includes pressure charging valve NO1, pressure charging valve NO2, pressure charging valve NO3 and pressure charging valve NO4, the normally opened electricity
Magnet valve includes normally open solenoid valve VO1 and normally open solenoid valve VO2, and the normally closed solenoid valve includes normally closed solenoid valve VC1 and normally closed electricity
Magnet valve VC2, the pressure charging valve NO1 and pressure charging valve NO2 build die block with direct current generator by normally closed solenoid valve VC1 and connect, described
Pressure charging valve NO3 and pressure charging valve NO4 builds die block with direct current generator by normally closed solenoid valve VC2 and connect, the pressure charging valve NO1
It is connect with master cylinder by normally open solenoid valve VO1 with pressure charging valve NO2, the pressure charging valve NO3 and pressure charging valve NO4 pass through normally opened electricity
Magnet valve VO2 is connect with master cylinder.
3. a kind of integrated electric hydraulic brake system with decoupling function according to claim 2, which is characterized in that described
Pedal simulator be set between master cylinder and normally open solenoid valve VO2, the pedal simulator include pedal simulator, often
Control valve VC3 and hydraulically-controlled one-way valve A are closed, described one end normally closed control valve VC3 connects with master cylinder and normally open solenoid valve VO2 respectively
It connects, the other end is connect with pedal simulator, and the hydraulically-controlled one-way valve A is set between master cylinder and pedal simulator.
4. a kind of integrated electric hydraulic brake system with decoupling function according to claim 1, which is characterized in that described
Direct current generator builds die block and includes hydraulically-controlled one-way valve B, builds pressure chamber and direct current generator, it is described build pressure chamber by hydraulically-controlled one-way valve B with
Brake fluid oil pot connects, and the pressure chamber of building is connect with normally closed solenoid valve VC1 and normally closed solenoid valve VC2.
5. a kind of integrated electric hydraulic brake system with decoupling function according to claim 1, which is characterized in that described
Master cylinder includes the first brake chamber and the second brake chamber, includes corresponding return spring and braking in two brake chambers
Piston, two brake chambers are connect with brake fluid oil pot, the first brake chamber respectively with pedal simulator and normally opened electromagnetism
Valve VO2 connections, the second brake chamber are connect with normally open solenoid valve VO1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721768690.0U CN207631211U (en) | 2017-12-18 | 2017-12-18 | A kind of integrated electric hydraulic brake system with decoupling function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721768690.0U CN207631211U (en) | 2017-12-18 | 2017-12-18 | A kind of integrated electric hydraulic brake system with decoupling function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207631211U true CN207631211U (en) | 2018-07-20 |
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ID=62863471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721768690.0U Active CN207631211U (en) | 2017-12-18 | 2017-12-18 | A kind of integrated electric hydraulic brake system with decoupling function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207631211U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107891850A (en) * | 2017-12-18 | 2018-04-10 | 浙江力邦合信智能制动***股份有限公司 | A kind of integrated electric hydraulic brake system with decoupling function |
| CN114423652A (en) * | 2019-09-27 | 2022-04-29 | 株式会社爱德克斯 | Vehicle brake device |
-
2017
- 2017-12-18 CN CN201721768690.0U patent/CN207631211U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107891850A (en) * | 2017-12-18 | 2018-04-10 | 浙江力邦合信智能制动***股份有限公司 | A kind of integrated electric hydraulic brake system with decoupling function |
| CN114423652A (en) * | 2019-09-27 | 2022-04-29 | 株式会社爱德克斯 | Vehicle brake device |
| CN114423652B (en) * | 2019-09-27 | 2023-09-01 | 株式会社爱德克斯 | Brake device for vehicle |
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