CN206633997U - A kind of EHB - Google Patents
A kind of EHB Download PDFInfo
- Publication number
- CN206633997U CN206633997U CN201720415836.7U CN201720415836U CN206633997U CN 206633997 U CN206633997 U CN 206633997U CN 201720415836 U CN201720415836 U CN 201720415836U CN 206633997 U CN206633997 U CN 206633997U
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- master cylinder
- pedal
- working chamber
- brake
- ehb
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Abstract
A kind of EHB of the utility model includes electronic control unit ECU, battery, automatically controlled Linear Moving Module, push rod, master cylinder first piston, the working chamber of master cylinder first, fluid reservoir, master cylinder second piston, the working chamber of master cylinder second, master cylinder, ABS/ESP modules, switch valve, pedal simulator, line traffic control magnetic valve, hydraulic pressure force snesor 1, hydraulic pressure force snesor 2, pattern switching valve, secondary master cylinder, pedal push rod, pedal displacement sensor, brake pedal, automatically controlled Linear Moving Module, control to motor is realized by displacement signal, and the rotary motion of motor is converted into the linear motion of push rod, so as to be controlled to brake pressure.The utility model can preferably meet braking requirement, and with the response time is short, can accurately control hydraulic braking force, realizes the advantages of maximization recovery braking energy, security reliability height.
Description
Technical field
The utility model belongs to automobile brake technical field, more particularly to a kind of EHB.
Background technology
One of brake system of car, the important component as automobile, just play since its generation particularly important
Role, and with requirement more and more higher of the people to braking ability, original brakes is due in structure and principle side
Raising limited potential of the limitation in face to braking ability, thus, urgent need has a kind of new brakes to meet its new need
Ask.Automobile line control brake system（Brake-By-Wire System, abbreviation BBW）Grow up under this background.
Line control brake system, orthodox car brakes and wire control technology are combined, can preferably meet Hyundai Motor system
The new demand of dynamic System Development, it is the direction of New Times brake system of car development.Automobile line control brake system can be divided into electronics
Brake fluid system（Electro-Hydraulic Brake System, abbreviation EHB）And electromechanical braking system
（Electro-Mechanical Brake System, abbreviation EMB）Two types.Wherein, EMB systems, its hydraulic system are electric
Sub- mechanical system substitutes completely, and eliminates mechanical or fluid pressure type back-up system, is generally treated as line control brake system
Final developing direction.But due to eliminating back-up system, reliability just more significant；Also, because its executing agency needs
Possessing has enough energy to maintain efficient brake efficiency, now with vehicle-mounted 12V power supplys can not meet its requirement, this
Vehicle power high-pressure system with regard to needing to re-establish new 42V, and therefore caused safety related technical problems remain unsolved.And
EHB systems, it is the transiting product from Conventional braking systems to EMB system transition processes, still remains traditional hydraulic braking work(
Can, reliability is relatively preferable；Meanwhile as a kind of new brakes, it is by some mechanical element in Conventional braking systems
Substituted with electronic component, compensate for the weak point of traditional design and principle, automobile braking performance can be improved to the utmost
Energy.In addition, EHB systems are still using existing 12V vehicle powers, it is not necessary to establish new circuit system.
The EHB of current trend mostly using motor, high pressure accumulator and pump be used as power source, but height
There is the danger of helium leak in pressure accumulator, reliability and security still have much room for improvement.
Pump, high pressure accumulator are replaced with motor and reducing gear in existing EHB, also can be real
Existing its controls to adjust function, and with motor-driven mechanism to act on master cylinder, and deposited in the absence of high pressure accumulator etc.
Potential safety hazard.Compared with the EHB of prevalence, this brake system structure is simple, reduces cost, can
Direct control higher by property and security, and passing through ECU, it is possible to achieve the function such as ABS, ESP, TCS, ACC, it develops empty
Between it is huge, be the developing direction of following brakes.
Chinese patent Authorization Notice No. CN103754210A discloses " a kind of motor-driven EHB ",
The system is using worm and wormwheel+pinion and rack as motion transforming unit, and under normal mode, ECU receives the letter of pedal simulator
Motor is passed to after breath, powered motion converting unit makes master cylinder work produce hydraulic braking force to motor again, so as to act on
Wheel braking wheel cylinder realizes braking；Under failure mode, brake pedal push rod, which pushes directly on rack, makes master cylinder work, so as to real
Now brake.Because caloric value is larger, the flank of tooth is easy to wear, is produced into when endless screw worm gear actuating mechanism has transmission efficiency low, work
The shortcomings that this is high, the present invention uses Bevel Gear Transmission+pinion and rack as motion transforming unit, with Worm and Worm Gear Driving machine
Structure is compared, and bevel gear transmission has that service life is long, can bear high load operation state, be corrosion-resistant, cost is low, efficiency high
The advantages that；Under failure mode, brake pedal push rod directly acts on secondary master cylinder and produces hydraulic braking force, so as to act on wheel cylinder
Realize braking.
The content of the invention
In view of problem above, the purpose of this utility model is to provide a kind of EHB, and the system has
Reclaim braking energy, improve response time, the function of accurate control brake force, brake force can be fed back into driving well
Member, realize the active control of hydraulic coupling and pedal force.
A kind of EHB of the utility model includes electronic control unit ECU, battery, automatically controlled linear motion mould
Block, push rod, master cylinder first piston, the working chamber of master cylinder first, fluid reservoir, master cylinder second piston, master cylinder
Second working chamber, master cylinder, ABS/ESP modules, switch valve, pedal simulator, line traffic control magnetic valve, hydraulic pressure force snesor 1, liquid
Pressure sensor 2, pattern switching valve, secondary master cylinder, pedal push rod, pedal displacement sensor, brake pedal.
Electronic control unit ECU, required total braking force is calculated according to displacement signal, further according to motor, the shape of battery
State calculates regenerative braking force, and total braking force, which subtracts regenerative braking force, can obtain caused brake force needed for brakes；It is automatically controlled
Linear Moving Module includes electric rotating machine and motion transforming unit, and motion transforming unit includes bevel gear engagement transmission mechanism and tooth
Rack engagement transmission mechanism is taken turns, the rotary motion of motor is converted into rack and pinion engagement driver by bevel gear engagement transmission mechanism
The linear motion of structure, so as to promote push rod master cylinder is started working, and the control to motor is realized by displacement signal,
And the rotary motion of motor is converted into the linear motion of push rod, so as to be controlled to brake pressure；Push rod, made for promoting
The piston of dynamic master cylinder；Fluid reservoir, for storing and reclaiming the fluid in fluid pressure line；Master cylinder, including master cylinder first
Chamber and the chamber of master cylinder second, for the mechanical energy from pedal to be converted into hydraulic energy.
The working chamber of master cylinder first is connected by fluid pressure line and switch valve respectively with the working chamber of master cylinder second；
ABS/ESP modules, it is made up of four two-position two-way solenoid valves, for adjusting the brake force of each wheel cylinder；Switch valve is normally closed type, just
Often prevent fluid from flowing backwards during braking, influence braking effect, under failure mode, with pattern switching valve collective effect, pattern switching valve
Switch over, switch valve is opened, brake pedal, and secondary master cylinder directly acts on each wheel braking wheel cylinder, realizes braking；Step on
Plate simulator, for simulating the Brake feedback power of pedal；Line traffic control magnetic valve, for adjusting damping, carrying out active control to pedal force
System；Hydraulic pressure force snesor, for judging the braking intention of driver；Pattern switching valve, for normal mode and failure mode it
Between switching；Secondary master cylinder, pedal sense is used under normal brake mode and is simulated, braking is directly used under failure mode；Pedal
Displacement transducer, for obtaining the displacement information of brake pedal and being fed back to ECU；Brake pedal, for obtaining driver
Braking information.
Pattern switching valve is located in secondary master cylinder with the brake piping between pedal simulator, the magnetic valve is two three
Three-way electromagnetic valve；And a hydraulic pressure force snesor is also equipped with the brake piping between pattern switching valve and pedal simulator, measure
The hydraulic coupling in the loop, to identify the braking intention of driver and carry out the feedback control of pedal sense simulation.Simulated in pedal
A line traffic control magnetic valve is also arranged on pipeline between device and fluid reservoir, the magnetic valve is two position two-way valve, can actively be adjusted
Section simulation pedal force.
Secondary master cylinder, pedal simulator, hydraulic pressure force snesor and line traffic control magnetic valve carry out the mould of brake pedal feel jointly
Intend, active control can be carried out to pedal force by adjusting the flow of line traffic control magnetic valve.
Secondly, fault diagnosis system and electronic control unit ECU are communicated to connect, when some brake parts breaks down nothing
Fault message can be passed to electronic control unit ECU during method normal work；Fault diagnosis system be diagnosed to be brakes some
When place is broken down, warning system can remind driver the very first time.
Compared with existing EHB, the utility model has following obvious advantage.
Secondary master cylinder is connected by magnetic valve with each wheel braking wheel cylinder, and when electric rotating machine fails, secondary master cylinder is direct
Wheel braking wheel cylinder is acted on, realizes braking.
ABS/ESP modules are replaced traditional by 12 magnetic valves, i.e., each solenoid valve control one using four magnetic valves
The hydraulic coupling of individual wheel braking wheel cylinder, simple in construction, cost reduces.
Brief description of the drawings
Fig. 1 is the integrally-built schematic diagram of the utility model.
Fig. 2 is the schematic diagram of bevel gear engagement transmission mechanism.
Fig. 3 is the schematic diagram of rack and pinion engagement transmission mechanism.
In figure, 1- electronic control units ECU；2- batteries；3- electric rotating machines；4- bevel gear engagement transmission mechanisms；5- gears；
6- racks；7- push rods；8- master cylinder first pistons；The working chamber of 9- master cylinders first；10- fluid reservoirs；11- master cylinders
Two pistons；The working chamber of 12- master cylinders second；13- master cylinders；14-ABS/ESP modules；15- switch valves；16- pedals are simulated
Device；17- line traffic control magnetic valves；18- hydraulic pressure force snesor 1；19- hydraulic pressure force snesor 2；20- pattern switching valves；21- level master cylinder；
22- pedal push rods；23- pedal displacement sensors；24- brake pedals.
Embodiment
To make the purpose of this utility model, technical scheme and technique effect clearer, 1~Fig. 3 pairs below in conjunction with the accompanying drawings
The utility model makees detailed description further.
When driver's brake pedal（24）When, pattern switching valve（20）, switch valve（15）, line traffic control magnetic valve（17）
It is in running order, pedal displacement sensor（23）Obtain displacement information and pass to electronic control unit ECU（1）, electronics control
Unit ECU processed（1）Receive after information according to electric rotating machine（3）Working characteristics and cell operating status calculate driving rotation
Motor（3）Regenerative braking force size, regenerative braking force is subtracted by total brake force, can obtain this time brake needed for liquid
Power size is suppressed, and electric signal is passed into electric rotating machine（3）, then electric rotating machine（3）According to electronic control unit ECU
（1）The automatically controlled Linear Moving Module of order-driven promote and push rod（7）Connected master cylinder first piston（8）, led in braking
Cylinder first piston（8）The working chamber of master cylinder first when blocking the first compensation hole（9）Start to build pressure, so as to push away by spring spindle
Dynamic master cylinder second piston（11）, and work as master cylinder second piston（11）The work of master cylinder second when blocking the second compensation hole
Make chamber（12）Also begin to build pressure, now brake fluid flows to ABS/ESP modules by fluid pressure line（14）, to each wheel cylinder transmission
Brake force.
In the utility model, automatically controlled Linear Moving Module includes electric rotating machine（3）, bevel gear engagement transmission mechanism（4）、
Gear（5）Rack（6）Engagement transmission mechanism.Electric rotating machine（3）Pass through circuit and electronic control unit ECU（1）Connection, according to electricity
Sub-control unit ECU（1）The electric rotating machine of transmission（3）Torque signals drive straight-line motion mechanism.Master cylinder（13）Including system
Dynamic master cylinder first piston（8）, the working chamber of master cylinder first（9）, master cylinder second piston（11）, master cylinder second works
Chamber（12）, the working chamber of master cylinder first（9）With the working chamber of master cylinder second（12）It is braked master cylinder second piston（11）Every
Open, and all by compensating hole and fluid reservoir（10）Connection.The working chamber of master cylinder first（9）With the working chamber of master cylinder second
（12）Pass through fluid pressure line and ABS/ESP modules respectively（14）It is connected, and ABS/ESP modules（14）Also through fluid pressure line and vehicle
Each brake is connected.
Work as electric rotating machine（3）Hinder for some reason and can not provide braking moment or automatically controlled Linear Moving Module damage so that it cannot
When transmitting brake force, fault diagnosis system is diagnosed to be fault message and passes to electronic control unit ECU（1）, Electronic Control list
First ECU（1）Whole brakes is set to be in off working state, pattern switching valve at once（20）, switch valve（15）After not working,
Secondary master cylinder（21）With ABS/ESP modules（14）It is directly connected to, brake pedal（24）, brake fluid is by secondary master cylinder（21）Directly
Connect and flow to ABS/ESP modules（14）, so as to produce brake force, vehicle is realized and braked.
Claims (4)
1. a kind of EHB, including electronic control unit ECU（1）, battery（2）, automatically controlled Linear Moving Module, push away
Bar（7）, master cylinder first piston（8）, the working chamber of master cylinder first（9）, fluid reservoir（10）, master cylinder second piston
（11）, the working chamber of master cylinder second（12）, master cylinder（13）, ABS/ESP modules（14）, switch valve（15）, pedal simulation
Device（16）, line traffic control magnetic valve（17）, hydraulic pressure force snesor 1（18）, hydraulic pressure force snesor 2（19）, pattern switching valve（20）, it is secondary
Master cylinder（21）, pedal push rod（22）, pedal displacement sensor（23）, brake pedal（24）, it is characterised in that：Described is automatically controlled straight
Line motion module includes electric rotating machine（3）And motion transforming unit, described motion transforming unit include bevel gear engaged transmission
Mechanism（4）And gear（5）Rack（6）Engagement transmission mechanism；Described line traffic control magnetic valve（17）Installed in pedal simulator（16）
With fluid reservoir（10）Between pipeline in.
A kind of 2. EHB according to claim 1, it is characterised in that：Described master cylinder（13）Bag
Include the working chamber of master cylinder first（9）With the working chamber of master cylinder second（12）；The described working chamber of master cylinder first（9）With
The working chamber of master cylinder second（12）Pass through fluid pressure line and the switch valve of normally closed type respectively（15）Connection.
3. EHB according to claim 1, it is characterised in that：Described pedal simulator（16）Outlet
Pipeline is equipped with a line traffic control magnetic valve（17）, and and fluid reservoir（10）It is connected.
A kind of 4. EHB according to claim 1, it is characterised in that：Described hydraulic pressure force snesor 2
（19）It is arranged in pattern switching valve（20）With pedal simulator（16）Between brake piping in；Described pattern switching valve（20）
It is arranged in secondary master cylinder（21）With pedal simulator（16）Between brake piping in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720415836.7U CN206633997U (en) | 2017-04-20 | 2017-04-20 | A kind of EHB |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720415836.7U CN206633997U (en) | 2017-04-20 | 2017-04-20 | A kind of EHB |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206633997U true CN206633997U (en) | 2017-11-14 |
Family
ID=60246721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720415836.7U Expired - Fee Related CN206633997U (en) | 2017-04-20 | 2017-04-20 | A kind of EHB |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206633997U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106904159A (en) * | 2017-04-20 | 2017-06-30 | 华东交通大学 | A kind of EHB |
| CN109177945A (en) * | 2018-11-02 | 2019-01-11 | 吉林大学 | A kind of full decoupled electronic hydraulic brake system |
| CN109229088A (en) * | 2018-10-31 | 2019-01-18 | 华东交通大学 | A kind of automobile electro-mechanical brake system and its control method |
| CN110682899A (en) * | 2019-10-17 | 2020-01-14 | 浙江亚太机电股份有限公司 | Integrated braking system with adjustable pedal feel |
| CN110733482A (en) * | 2019-10-17 | 2020-01-31 | 浙江亚太机电股份有限公司 | Hydro-electric nonlinear control pedal simulator and control method thereof |
| GB2579805A (en) * | 2018-12-14 | 2020-07-08 | Continental Automotive Romania Srl | Hydraulic electronic control unit |
| CN113306539A (en) * | 2021-06-30 | 2021-08-27 | 吉林东光奥威汽车制动系统有限公司 | Electronic brake boosting system and method |
-
2017
- 2017-04-20 CN CN201720415836.7U patent/CN206633997U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106904159A (en) * | 2017-04-20 | 2017-06-30 | 华东交通大学 | A kind of EHB |
| CN109229088A (en) * | 2018-10-31 | 2019-01-18 | 华东交通大学 | A kind of automobile electro-mechanical brake system and its control method |
| CN109177945A (en) * | 2018-11-02 | 2019-01-11 | 吉林大学 | A kind of full decoupled electronic hydraulic brake system |
| GB2579805A (en) * | 2018-12-14 | 2020-07-08 | Continental Automotive Romania Srl | Hydraulic electronic control unit |
| GB2579805B (en) * | 2018-12-14 | 2020-12-23 | Continental Automotive Romania Srl | Hydraulic electronic control unit |
| CN110682899A (en) * | 2019-10-17 | 2020-01-14 | 浙江亚太机电股份有限公司 | Integrated braking system with adjustable pedal feel |
| CN110733482A (en) * | 2019-10-17 | 2020-01-31 | 浙江亚太机电股份有限公司 | Hydro-electric nonlinear control pedal simulator and control method thereof |
| CN113306539A (en) * | 2021-06-30 | 2021-08-27 | 吉林东光奥威汽车制动系统有限公司 | Electronic brake boosting system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171114 Termination date: 20180420 |