CN105667485A - Power-assisted brake system for automobiles - Google Patents
Power-assisted brake system for automobiles Download PDFInfo
- Publication number
- CN105667485A CN105667485A CN201610015368.4A CN201610015368A CN105667485A CN 105667485 A CN105667485 A CN 105667485A CN 201610015368 A CN201610015368 A CN 201610015368A CN 105667485 A CN105667485 A CN 105667485A
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- Prior art keywords
- piston
- master cylinder
- power room
- increasing power
- pedal
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Classifications
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- 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
- B60T13/74—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 electrical assistance or drive
- B60T13/745—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 electrical assistance or drive acting on a hydraulic system, e.g. a master cylinder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/04—Brake-action initiating means for personal initiation foot actuated
- B60T7/042—Brake-action initiating means for personal initiation foot actuated by electrical means, e.g. using travel or force sensors
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
- Braking Systems And Boosters (AREA)
Abstract
The invention relates to a power-assisted brake system for automobiles. The power-assisted brake system comprises a brake master cylinder, a hydraulic control unit and a hydraulic power-enhancing mechanism, wherein the brake master cylinder is connected with the hydraulic control unit through a brake pipeline; the hydraulic power-enhancing mechanism comprises a power-enhancing chamber casing, a pedal push rod and a master cylinder piston push rod, wherein a piston cylinder is arranged in the power-enhancing chamber casing, the rear end of the pedal push rod is connected with a brake pedal in a rotating manner, a power-enhancing chamber first piston is arranged at the front end of the pedal push rod, a power-enhancing chamber second piston is arranged at the rear end of the master cylinder piston push rod, the power-enhancing chamber first piston and the power-enhancing chamber second piston both are arranged in the piston cylinder in a sliding manner, a power-enhancing first piston cavity is formed between the power-enhancing chamber first piston and the power-enhancing chamber second piston, a power-enhancing second piston cavity is formed between the power-enhancing chamber second piston and the closed end of the piston cylinder, and the front end of the master cylinder piston push rod extends into the brake master cylinder.
Description
Technical field
The present invention relates to a kind of power-assisted breaking system for automobile, belong to automobile brake technical field.
Background technology
Along with the lasting growth of whole world automobile pollution, energy dilemma and environmental pollution are day by day serious. The advantages such as the new-energy automobile such as hybrid vehicle, pure electric automobile is energy-efficient with it, low emission obtain the extensive attention of countries in the world, become the effective means solving environmental pollution and shortage of resources. A large amount of fund is dropped into one after another to develop electromobile in countries in the world, and meanwhile breaking system for hybrid vehicle, electromobile it is also proposed new requirement. In order to realize good coordinating with the regenerative braking system of hybrid vehicle, electromobile itself, the braking energy making regenerative braking system recoveries as far as possible many on the basis of brake safe, first should cancelling the dependence to engine vacuum, next can not affect brake pedal feel with the cooperation control of regenerative braking system. Existing vacuum assisted hydraulic brake system, vacuum booster depends on engine vacuum, and during with regenerative braking cooperation control, its hydrostatic control can affect master cylinder capacity and hydraulic pressure, thus affects brake pedal feel. In order to overcome the above-mentioned deficiency of existing breaking system, engineers researches and develops some novel braking systems from the nineties in last century, and some line control brake systems wherein started to use on hybrid vehicle, electromobile this century. Line control brake system becomes the indispensable part of new-energy automobile breaking system.
One part of publication No. of Tsing-Hua University's application is in the patent of invention of CN104071142A, disclose a kind of line control brake system, it instead of the vacuum booster of traditional vacuum assisted hydraulic brake system with a motor, by the collaborative work of motor, planetary gear reducing mechanism and high pressure accumulator, promote the piston in braking master cylinder to produce brake fluid pressure, thus eliminate the dependence to engine vacuum; Use pedal simulator, on the impact of brake pedal feel when elimination and regenerative braking cooperation control. But, the system increases the drive-motor of a relatively high power is high pressure accumulator accumulation of energy, adds system energy consumption; High pressure accumulator is in high pressure conditions always, there is certain potential safety hazard; In addition, the pedal simulator of this system is simple spring, hydraulic analog device, and pedal sense not easily regulates, and can not provide pedal sense initiatively for officer.
One part of publication No. of Tongji University's application is in the patent of invention of CN104802777A, discloses the hydraulic braking system that a kind of pedal sense is initiatively simulated, and it promotes braking master cylinder piston with a motor and ball screw framework, produces hydraulic pressure;Two magnetic valves lay respectively between braking pipeline, oil can pipeline and pedal sense simulation room, by two continuous open and close controlling of magnetic valve realize the active simulation of pedal sense during braking. But, when controlling magnetic valve opening and closing between braking pipeline and pedal sense simulation room, the hydraulic pressure pressure of braking pipeline can be affected, and control accuracy is difficult to ensure; In addition, when braking magnetic valve damage between pipeline and pedal sense simulator, brake the high pressure braking fluid in total pump and can directly enter pedal sense simulation room so that officer cannot implement braking, and security of system has much room for improvement.
One part of publication No. of Tongji University's application is in the patent of invention of CN104760586A, discloses a kind of bi-motor line control brake system, and it promotes braking master cylinder piston with a motor and ball screw framework, produces hydraulic pressure; Another motor and ball screw framework are used for as brake pedal provides pedal sense initiatively. Owing to the system uses two cover motor-ball screw frameworks and two brakings master cylinder, not only complex structures, and add energy consumption and the manufacturing cost of system; Mechanical connection between motor and pedal adds the control difficulty of system, and motor performance requires higher.
Summary of the invention
For the problems referred to above, it is an object of the invention to provide a kind of power-assisted breaking system for automobile, this breaking system can cancel the dependence to engine vacuum and stable performance, safety.
For achieving the above object, the present invention is by the following technical solutions: a kind of power-assisted breaking system for automobile, it is characterised in that: comprise braking master cylinder, hydraulic control unit and hydraulic boosting mechanism, described master cylinder connects described hydraulic control unit by braking pipeline, described hydraulic boosting mechanism comprises increasing power room housing, pedal push rod and master cylinder piston push rod, in the inside of described increasing power room housing, piston cylinder is set, rear end and the brake pedal of described pedal push rod are rotationally connected, increasing power room first piston is set in the front end of described pedal push rod, increasing power room the 2nd piston is set in the rear end of described master cylinder piston push rod, described increasing power room first piston and increasing power room the 2nd piston are all slidably arranged in described piston cylinder, first piston chamber, increasing power room is formed between described increasing power room first piston and described increasing power room the 2nd piston, increasing power room the 2nd plunger shaft is formed between described increasing power room the 2nd piston and the blind end of described piston cylinder, described braking master cylinder is stretched into before described master cylinder piston push rod.
Also comprise motor power-assisted braking mechanism and central controller; Described motor power-assisted mechanism comprises assist motor, slows down to increase and turn round device, the first tooth bar and sleeve, described jacket casing is located at and leaves gap on described main cylinder piston-rod and with described main cylinder piston-rod, is provided with baffle plate on the described main cylinder piston-rod being positioned at described sleeve front; The described input terminus increasing torsion device that slows down is connected with the output shaft of described assist motor, and the output terminal that device is turned round in described increasing of slowing down is gear, and described gear engages with described tooth bar, and described tooth bar is fixedly connected with described sleeve; Between described sleeve and described increasing power room housing, return spring is set; Described central controller is electrically connected with described assist motor.
Also comprise pedal simulator, described pedal simulator comprises simulator shell, slide in described simulator shell and an emulator piston is set, spatial separation in described simulator shell is become two cavitys by described emulator piston, cavity described in one arranges rack-and-pinion mechanism wherein, cavity described in another arranges simulator spring; The tooth bar of described rack-and-pinion mechanism is fixedly connected with described emulator piston, and the gear of described rack-and-pinion mechanism is connected with the output shaft of a motor; The cavity at described simulator spring place is connected with described increasing power room the 2nd plunger shaft by braking pipeline, and first piston chamber, described increasing power room is connected with the described braking pipeline between described pedal simulator with described increasing power room the 2nd plunger shaft by the first magnetic valve; Described motor is electrically connected with described central controller.
Also comprising oil can, described oil can is connected with the described braking pipeline between described pedal simulator with described increasing power room the 2nd plunger shaft by the 2nd magnetic valve.
Described pedal push rod arranges pedal displacement sensor, arranging pressure transmitter on the braking pipeline between described first magnetic valve and first piston chamber, described increasing power room, described pedal displacement sensor, pressure transmitter are all electrically connected with described central controller.
Also comprising a stored energy device, described stored energy device is electrically connected with described motor, central controller, pressure transmitter, pedal displacement sensor respectively.
Described first magnetic valve adopts normally closed two-position two-way solenoid valve, and described 2nd magnetic valve adopts often opens two-position two-way solenoid valve.
Described braking master cylinder comprises master cylinder housing, in described master cylinder housing, interval arranges two master cylinder pistons, form master cylinder piston chamber respectively between master cylinder piston and between the blind end of described master cylinder piston and described master cylinder housing described in two, piston reset spring is set respectively in master cylinder piston chamber described in two.
It is respectively arranged with increasing power room spring in first piston chamber, described increasing power room and increasing power room the 2nd plunger shaft.
The present invention is owing to taking above technical scheme, it has the following advantages: the motor power-assisted braking mechanism that 1, the present invention comprises assist motor because adopting, slows down and increase and turn round device, tooth bar and sleeve, wherein, sleeve can drive main cylinder piston-rod to carry out translational movement by the baffle plate being positioned on main cylinder piston-rod, thus promote the piston motion in braking master cylinder to produce braking fluid such that it is able to cancel the dependence to engine vacuum. 2, pedal simulator of the present invention adopts motor to coordinate with rack-and-pinion mechanism, it is possible to for officer provides pedal sense initiatively, it is to increase driving. 3, the present invention is owing to being provided with ability storing device, and stored energy device is electrically connected with the motor of pedal simulator, therefore, the motor of pedal simulator can use as generator, the electric energy of generation is used for pressure transmitter, pedal displacement sensor etc., more energy-conservation, even and if when breaking system powers inefficacy, the sensor also can effectively be powered, so that in time for entire car controller provides correct braking information. 4, the present invention is when powering inefficacy or assist motor inefficacy, pedal push rod, master cylinder piston push rod can be utilized directly to promote the piston in braking master cylinder, to produce braking fluid, namely hydraulic boosting mechanism itself also can as standby braking strategy, the therefore reliability height of breaking system.
Accompanying drawing explanation
Fig. 1 is the one-piece construction schematic diagram of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in Figure 1, the present invention comprises braking master cylinder 1, hydraulic control unit 2, hydraulic boosting mechanism 3, motor power-assisted braking mechanism 4, pedal simulator 5, oil can 6 and central controller 7.
Braking master cylinder 1 comprises master cylinder housing 11, in master cylinder housing 11, interval arranges two master cylinder pistons 12, form master cylinder piston chamber 13 respectively between two master cylinder pistons 12 and between the blind end of master cylinder piston 12 and master cylinder housing 11, piston reset spring 14 is set respectively in two master cylinder piston chambeies 13.
Hydraulic control unit 2 connects two master cylinder piston chambeies 13 respectively by two braking pipelines, hydraulic control unit 2 can select the anti-lock brake hydraulic control unit in prior art or Vehicle Stability Control hydraulic control unit, it is preferable that Vehicle Stability Control hydraulic control unit.
Hydraulic boosting mechanism 3 comprises increasing power room housing 31, pedal push rod 32 and master cylinder piston push rod 33.Increasing power room housing 31 is fixedly connected with master cylinder housing 11, arranges piston cylinder 34 in the inside increasing power room housing 31. Rear end and the brake pedal 8 of pedal push rod 32 are rotationally connected, and arrange increasing power room first piston 35 in the front end of pedal push rod 32, increase power room first piston 35 and are slidably arranged in piston cylinder 34. Increasing power room the 2nd piston 36 is set in the rear end of master cylinder piston push rod 33, increasing power room the 2nd piston 36 is slidably arranged in piston cylinder 34 and is positioned at the front of increasing power room first piston 35, form first piston chamber, increasing power room 37 between increasing power room first piston 35 and increasing power room the 2nd piston 36, increase and form increasing power room the 2nd plunger shaft 38 between power room the 2nd piston 36 and the blind end of piston cylinder 34. The front end of master cylinder piston push rod 33 is stretched into after passing piston cylinder 34 in master cylinder housing 11 and near master cylinder piston 12. It is respectively arranged with increasing power room spring 39 in increasing first piston chamber, power room 37 and increasing power room the 2nd plunger shaft 38.
Motor power-assisted braking mechanism 4 comprises assist motor 41, slows down to increase and turn round device 42, tooth bar 43 and sleeve 44. Sleeve 44 is set in and leaves gap on master cylinder piston push rod 33 and with master cylinder piston push rod 33, is provided with baffle plate 331 on master cylinder piston push rod 33, and sleeve 44 can drive master cylinder piston push rod 33 to move forward by baffle plate 331. Device 42 is turned round in increasing of slowing down and tooth bar 43 is two, it is symmetricly set on the both sides of sleeve 44, each slow down increase turn round device 42 input terminus all output shaft with assist motor 41 be connected, slowing down and increasing the output terminal turning round device 42 is a gear 421, gear 421 engages with tooth bar 43, and tooth bar 43 is fixedly connected with sleeve 44. It is provided with return spring 45 between sleeve 44 and increasing power room housing 31.
Pedal simulator 5 comprises motor 51, rack-and-pinion mechanism 52 and simulator shell 53. Slide in simulator shell 53 and an emulator piston 54 is set. Spatial separation in simulator shell 53 is become two cavitys by emulator piston 54, arranges rack-and-pinion mechanism 52 wherein, arrange simulator spring 55 in another cavity in a cavity. The output shaft of motor 51 is connected with the gear 521 in rack-and-pinion mechanism 52, and the tooth bar 522 in rack-and-pinion mechanism 52 is fixedly connected with emulator piston 54.
Oil can 6 is connected with master cylinder piston chamber 13 by two braking pipelines, for providing braking fluid. Oil can 6 is connected with an interface of four-way connection 62 by magnetic valve 61, and other three interfaces of four-way connection 62 are connected by the cavity at braking pipeline and simulator spring 55 place, increasing power room the 2nd plunger shaft 38, increasing first piston chamber, power room 37 respectively. The braking pipeline increased between first piston chamber, power room 37 and four-way connection 62 is arranging magnetic valve 63.
Central controller 7 is electrically connected with assist motor 41, motor 51, magnetic valve 61, magnetic valve 63 respectively. The braking pipeline increased between first piston chamber, power room 37 and magnetic valve 63 is arranging pressure transmitter 71; Pedal push rod 32 arranges pedal displacement sensor 72. Pressure transmitter 71, pedal displacement sensor 72 are all electrically connected with central controller 7.
The present invention also comprises a stored energy device 9, and stored energy device 9 is electrically connected with motor 51, central controller 7, pressure transmitter 71, pedal displacement sensor 72 respectively.
In above-described embodiment, magnetic valve 63 adopts normally closed two-position two-way solenoid valve, and magnetic valve 61 adopts often leaves two-position two-way solenoid valve.
Principle of work and the working process of the present invention are as follows:
During system worked well, the effect of assist motor 41 is the officer in replacement traditional vacuum assisted hydraulic brake system and vacuum booster, drive increasing of slowing down to turn round device 42 to produce to rotate, slow down to increase and turn round device 42 engaging by gear 421 and tooth bar 43, rotation is converted into generation translation, tooth bar 43 band moving sleeve 44 promotes master cylinder piston push rod 33 to move, and master cylinder piston push rod 33 promotes the master cylinder piston 12 of braking master cylinder 1, thus produces brake fluid pressure.Specifically, when the systems are operating normally, brake pedal 8 is operated, and the degree that pedal displacement sensor 72 is operated for brake pedal 8 produces corresponding signal, passes to central controller 7. central controller 7 is by gathering the displacement signal of pedal displacement sensor 72, the pressure signal of pressure transmitter 71, the brake pressure signal of hydraulic control unit 2 and road surface situation recognition signal, determine the size of assist motor 41 target output torque, and the actual output torque controlling assist motor 41 follows the target output torque of assist motor 41, assist motor 41 increases torsion device 42 and is connected with deceleration, again by the engagement of gear 421 and tooth bar 43, the rotation of assist motor 41 is converted into tooth bar 43 and the translation of sleeve 44, sleeve 44 contacts with the baffle plate 331 on master cylinder piston push rod 33, master cylinder piston push rod 33 is promoted to move, thus promote the master cylinder piston 12 of braking master cylinder 1, braking fluid in two master cylinder piston chambeies 13 is pushed away into hydraulic control unit 5 by braking pipeline respectively, pipeline is braked again by each being connected with hydraulic control unit 5, push away and take turns cylinder stopper into each, thus vehicle is implemented braking.
During system worked well, magnetic valve 63 is energized open, and magnetic valve 61 is energized and cuts out, the pipeline connection increase first piston chamber, power room 37, increasing between power room the 2nd plunger shaft 38 and pedal simulator 5 liquid chamber, and the pipeline being connected with oil can 6 is sealed plug; First piston chamber, increasing power room 37 is connected with increasing power room the 2nd plunger shaft 38, brake pedal 8 is under officer tramples the driving of power, promote pedal push rod 32, pedal push rod 32 promotes chamber, increasing power room first piston 35, and drive increasing power room the 2nd chamber piston 36 that liquid is pressed into pedal simulator 5, promote emulator piston 54 and tooth bar 522 translation, tooth bar 522 engages drive-motor 51 and rotates generation electric energy with gear 521, power storage is directly powered in stored energy device 9, stored energy device 9 for pressure transmitter 71 and pedal displacement sensor 72; In pedal simulator 5, liquid is subject to reactive force, for providing braking to step on sense to officer, the ACTIVE CONTROL of motor 51 is realized by this reactive force by the rational curve of simulator spring 55 and central controller 7, it is possible to for officer provides active, desirable braking to step on sense; When braking completes, at the end of signal controls, magnetic valve 63 power-off is closed, and magnetic valve 61 power-off is passed through, and under the effect increasing power room spring 39, each parts of liquid return, hydraulic boosting mechanism 3 and pedal simulator 5 recover original position.
The active boost of the present invention can be realized by assist motor 41, hits for realizing initiatively keeping away, the controlling functions such as adaptive cruise. When using the Vehicle Stability Control hydraulic control unit in prior art when hydraulic control unit 2, it is also possible to realize active boost by hydraulic control unit 2, thus implement Vehicle Stability Control.
When using the Vehicle Stability Control hydraulic control unit in prior art when described hydraulic control unit 2, if the motor of system of the present invention lost efficacy, and hydraulic control unit 2 can normal operation, then the realization of the now function such as conventional brake, anti-lock brake, Stability Control, implements according to prior art by hydraulic control unit 2.
When system power supply of the present invention lost efficacy or assist motor 41 lost efficacy, magnetic valve 63 power-off is closed, by the hydraulicefficiency pipeline disconnection increasing first piston chamber, power room 37 and increase between power room the 2nd plunger shaft 38, pedal simulator 5, magnetic valve 61 power-off is open, is connected by the hydraulicefficiency pipeline increased between power room the 2nd plunger shaft 38 and oil can 6;Officer tramples brake pedal 8, brake pedal 8 promotes pedal push rod 32 to move, pedal push rod 32 promotes master cylinder piston push rod 33 by chamber, increasing power room first piston 35, increasing power room the 2nd piston 36, master cylinder piston push rod 33 promotes master cylinder piston 12, braking fluid in two master cylinder piston chambeies 13 is pushed away into hydraulic control unit 2 by braking pipeline respectively, brake pipeline by each being connected with hydraulic control unit 2 again, push away and take turns cylinder stopper into each, thus implement standby hydraulic braking. There is difference in areas between chamber, increasing power room first piston 35 and increasing power room the 2nd piston 36, use hydraulic principle the damping force of officer to be amplified; Liquid stream oil return kettle 6 in the plunger shaft 38 of increasing power room the 2nd.
In breaking system power-off failure situation, stored energy device 9 still can provide electric energy to pressure transmitter 71 and pedal displacement sensor 72, gives other Controlling System by correlation signal transmission.
The present invention is only described with above-described embodiment; the structure of each parts, position is set and connects and all can change to some extent; on the basis of technical solution of the present invention; all improvement of being carried out by indivedual parts according to the principle of the invention and equivalents, all should not get rid of outside protection scope of the present invention.
Claims (9)
1. the power-assisted breaking system for automobile, it is characterised in that: comprise braking master cylinder, hydraulic control unit and hydraulic boosting mechanism; Described master cylinder connects described hydraulic control unit by braking pipeline;
Described hydraulic boosting mechanism comprises increasing power room housing, pedal push rod and master cylinder piston push rod, in the inside of described increasing power room housing, piston cylinder is set, rear end and the brake pedal of described pedal push rod are rotationally connected, increasing power room first piston is set in the front end of described pedal push rod, increasing power room the 2nd piston is set in the rear end of described master cylinder piston push rod, described increasing power room first piston and increasing power room the 2nd piston are all slidably arranged in described piston cylinder, first piston chamber, increasing power room is formed between described increasing power room first piston and described increasing power room the 2nd piston, increasing power room the 2nd plunger shaft is formed between described increasing power room the 2nd piston and the blind end of described piston cylinder, described braking master cylinder is stretched into before described master cylinder piston push rod.
2. a kind of power-assisted breaking system for automobile as claimed in claim 1, it is characterised in that: also comprise motor power-assisted braking mechanism and central controller;
Described motor power-assisted mechanism comprises assist motor, slows down to increase and turn round device, the first tooth bar and sleeve, described jacket casing is located at and leaves gap on described main cylinder piston-rod and with described main cylinder piston-rod, is provided with baffle plate on the described main cylinder piston-rod being positioned at described sleeve front; The described input terminus increasing torsion device that slows down is connected with the output shaft of described assist motor, and the output terminal that device is turned round in described increasing of slowing down is gear, and described gear engages with described tooth bar, and described tooth bar is fixedly connected with described sleeve; Between described sleeve and described increasing power room housing, return spring is set;
Described central controller is electrically connected with described assist motor.
3. a kind of power-assisted breaking system for automobile as claimed in claim 2, it is characterized in that: also comprise pedal simulator, described pedal simulator comprises simulator shell, slide in described simulator shell and an emulator piston is set, spatial separation in described simulator shell is become two cavitys by described emulator piston, cavity described in one arranges rack-and-pinion mechanism wherein, cavity described in another arranges simulator spring;The tooth bar of described rack-and-pinion mechanism is fixedly connected with described emulator piston, and the gear of described rack-and-pinion mechanism is connected with the output shaft of a motor; The cavity at described simulator spring place is connected with described increasing power room the 2nd plunger shaft by braking pipeline, and first piston chamber, described increasing power room is connected with the described braking pipeline between described pedal simulator with described increasing power room the 2nd plunger shaft by the first magnetic valve; Described motor is electrically connected with described central controller.
4. a kind of power-assisted breaking system for automobile as claimed in claim 3, it is characterised in that: also comprising oil can, described oil can is connected with the described braking pipeline between described pedal simulator with described increasing power room the 2nd plunger shaft by the 2nd magnetic valve.
5. a kind of power-assisted breaking system for automobile as claimed in claim 3, it is characterized in that: on described pedal push rod, pedal displacement sensor is set, arranging pressure transmitter on the braking pipeline between described first magnetic valve and first piston chamber, described increasing power room, described pedal displacement sensor, pressure transmitter are all electrically connected with described central controller.
6. a kind of power-assisted breaking system for automobile as claimed in claim 5, it is characterised in that: also comprising a stored energy device, described stored energy device is electrically connected with described motor, central controller, pressure transmitter, pedal displacement sensor respectively.
7. a kind of power-assisted breaking system for automobile as claimed in claim 4, it is characterised in that: described first magnetic valve adopts normally closed two-position two-way solenoid valve, and described 2nd magnetic valve adopts often opens two-position two-way solenoid valve.
8. a kind of power-assisted breaking system for automobile as claimed in claim 1 or 2, it is characterized in that: described braking master cylinder comprises master cylinder housing, in described master cylinder housing, interval arranges two master cylinder pistons, form master cylinder piston chamber respectively between master cylinder piston and between the blind end of described master cylinder piston and described master cylinder housing described in two, piston reset spring is set respectively in master cylinder piston chamber described in two.
9. a kind of power-assisted breaking system for automobile as claimed in claim 1, it is characterised in that: in first piston chamber, described increasing power room with increase in the plunger shaft of power room the 2nd and be respectively arranged with increasing power room spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610015368.4A CN105667485B (en) | 2016-01-11 | 2016-01-11 | A kind of energy assisted braking system for automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610015368.4A CN105667485B (en) | 2016-01-11 | 2016-01-11 | A kind of energy assisted braking system for automobile |
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| CN105667485A true CN105667485A (en) | 2016-06-15 |
| CN105667485B CN105667485B (en) | 2018-01-23 |
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| CN201610015368.4A Active CN105667485B (en) | 2016-01-11 | 2016-01-11 | A kind of energy assisted braking system for automobile |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106274869A (en) * | 2016-11-14 | 2017-01-04 | 吉林大学 | The master cylinder of integrated pedal sense simulator |
| CN106427966A (en) * | 2016-11-23 | 2017-02-22 | 浙江力邦合信智能制动***股份有限公司 | Electronic control brake booster used in vehicle braking system |
| CN106938646A (en) * | 2017-03-22 | 2017-07-11 | 中山大学 | A kind of electric booster braking system for automobile |
| CN107364433A (en) * | 2017-06-28 | 2017-11-21 | 浙江零跑科技有限公司 | Timing belt drives adjustable type new-energy automobile brake system |
| CN107364432A (en) * | 2017-06-28 | 2017-11-21 | 浙江零跑科技有限公司 | Bevel gear driving adjustable type new-energy automobile brake system |
| CN107719343A (en) * | 2017-09-29 | 2018-02-23 | 杭州跟策科技有限公司 | The adjustable pedal system of power-assisted |
| CN108501924A (en) * | 2018-03-27 | 2018-09-07 | 北京市进联国玉制动泵有限责任公司 | Force aid system, electric vehicle and the power-assisted implementation method of electric vehicle |
| CN112224190A (en) * | 2019-06-30 | 2021-01-15 | 华为技术有限公司 | Brake boosting system, brake method and electric automobile |
| CN112298138A (en) * | 2019-07-31 | 2021-02-02 | 比亚迪股份有限公司 | Brake pedal simulator, braking system and vehicle |
| CN112689581A (en) * | 2020-06-11 | 2021-04-20 | 华为技术有限公司 | Pedal feel simulation system, hydraulic pressure adjustment unit and control method |
| DE102020211652A1 (en) | 2020-07-24 | 2022-01-27 | Continental Teves Ag & Co. Ohg | Adjustable simulator unit and braking device with simulator unit. |
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