CN108545072A - Hydraulic braking servomechanism and its power-assisted adjusting method - Google Patents

Hydraulic braking servomechanism and its power-assisted adjusting method Download PDF

Info

Publication number
CN108545072A
CN108545072A CN201810562020.6A CN201810562020A CN108545072A CN 108545072 A CN108545072 A CN 108545072A CN 201810562020 A CN201810562020 A CN 201810562020A CN 108545072 A CN108545072 A CN 108545072A
Authority
CN
China
Prior art keywords
hydraulic
piston
regulation
pressure
motor
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.)
Granted
Application number
CN201810562020.6A
Other languages
Chinese (zh)
Other versions
CN108545072B (en
Inventor
张贤超
崔海峰
袁旭亮
朱玙熹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SAIC General Motors Corp Ltd
Pan Asia Technical Automotive Center Co Ltd
Original Assignee
SAIC General Motors Corp Ltd
Pan Asia Technical Automotive Center Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SAIC General Motors Corp Ltd, Pan Asia Technical Automotive Center Co Ltd filed Critical SAIC General Motors Corp Ltd
Priority to CN201810562020.6A priority Critical patent/CN108545072B/en
Publication of CN108545072A publication Critical patent/CN108545072A/en
Application granted granted Critical
Publication of CN108545072B publication Critical patent/CN108545072B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE 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
    • B60T13/00Transmitting 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
    • B60T13/10Transmitting 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
    • B60T13/66Electrical control in fluid-pressure brake systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Braking Systems And Boosters (AREA)

Abstract

The present invention discloses a kind of hydraulic braking servomechanism and brake boost method, hydraulic braking servomechanism include:Pedal input shaft, assist motor, regulation motor, the hydraulic cylinder for injecting brake fluid, the boosting piston for inputting axis connection with the input piston of pedal input axis connection, with the power-assisted of assist motor, the first regulating piston, main piston, adjustment spring, the second regulating piston and processor with the adjusting input axis connection of regulation motor;Controller is communicated to connect with assist motor, regulation motor, controller is according to acquired master cylinder pressure, hydraulic booster cavity pressure, hydraulic regulation cavity pressure, control assist motor and the regulation motor present invention provide power-assisted by assist motor, the pressure of hydraulic regulation chamber is adjusted by regulation motor, due to the presence of adjustment spring, so that the pressure of hydraulic regulation chamber is linearly adjustable, so as to which by the separately adjustable pedal travel of the form of calibration and pedal force, degree of regulation is high and smooth.

Description

Hydraulic braking servomechanism and its power-assisted adjusting method
Technical field
The present invention relates to automobile correlative technology field, especially a kind of hydraulic braking servomechanism and its power-assisted adjusting side Method.
Background technology
When driver drives vehicle, it is related to a large amount of brake operating.In order to facilitate the brake operating of driver, The prior art mitigates the brake force applied when operator brake operation by increasing brake boost.It is related to brake boost at present Method be mainly:
1. vacuum booster provides braking using the draught head between the vacuum of atmospheric pressure and engine or vacuum pumping Power-assisted.
2. Electric brake booster directly carries out brake boost using motor.
The above force aid system for braking all has the ability of brake boost, but has respective limitation.Engine vacuum Booster, assist rate is non-adjustable, and is not suitable for pure electric vehicle.Vacuum pump type booster exists and prolongs to keep vacuum degree The case where slow property or long-time energy expenditure.Electric brake booster, adjustable assist rate, but because small, the nothing of the larger buffering of rigidity Method smoothly adjusts assist rate.
Invention content
Based on this, it is necessary to there is technical issues that smoothly to adjust for the prior art, provide one kind Hydraulic braking servomechanism and its power-assisted adjusting method.
The present invention provides a kind of hydraulic braking servomechanism, including:Pedal input shaft, assist motor, regulation motor, injection The hydraulic cylinder of brake fluid inputs axis connection with the input piston of pedal input axis connection, with the power-assisted of the assist motor Boosting piston, with adjusting input the first regulating piston of axis connection of the regulation motor, main piston, adjustment spring, second Regulating piston and processor;
The hydraulic cylinder is divided into hydraulic booster chamber and hydraulic regulation chamber by the main piston, and the hydraulic cylinder is in the hydraulic pressure The first boosting piston hole and the second boosting piston hole is arranged in the casing wall of power-assisted chamber, and the input piston is arranged in first power-assisted Piston hole, the boosting piston setting are arranged in second boosting piston hole, the hydraulic cylinder in the casing wall of hydraulic regulation chamber First regulating piston hole and the second regulating piston hole, first regulating piston setting are described in first regulating piston hole Second regulating piston is arranged in second regulating piston hole;
The main piston is provided with defeated for being connect with automobile engine master cylinder close to the side of the hydraulic regulation chamber Shaft, described adjustment spring one end are connect with second regulating piston, the other end and the master cylinder cage connection;
The controller is communicated to connect with the assist motor, the regulation motor, and the controller is according to acquired Master cylinder pressure, hydraulic booster cavity pressure, hydraulic regulation cavity pressure, control the assist motor and the regulation motor.
Further, the pedal input shaft includes the entering spindle being connect with the input piston and is helped with described There is power piston the Enforceable shaft in gap, the entering spindle to be connected and fixed with the Enforceable shaft.
Further, further include the liquid pot being connected to the hydraulic cylinder.
Further, the liquid pot is connected to by check valve with the hydraulic cylinder.
Further, the check valve is provided with preset pretightning force.
Further, the adjusting input shaft of the regulation motor is provided with self-locking mechanism.
Further, first regulating piston hole is provided with the limit for limiting the first regulating piston operating range Block.
The present invention provides a kind of brake boost method of foregoing hydraulic braking servomechanism, and the hydraulic braking helps The controller of force mechanisms executes:
Vehicle brake request is obtained, determines the goal pressure of master cylinder;
Drive assist motor so that the pressure of master cylinder reaches goal pressure;
It obtains and adjusts setting, be arranged according to the adjusting and determine target adjusting force;
While keeping the pressure of master cylinder to maintain goal pressure, regulation motor is driven so that the pressure of hydraulic regulation chamber Power reaches target adjusting force.
Further:
The acquisition vehicle brake request, determines the target power-assisted of hydraulic booster chamber, specifically includes:Obtain pedal travel letter Number and vehicle braking demand, the goal pressure of master cylinder is determined according to the pedal travel signal and vehicle braking demand;
The acquisition adjusts setting, is arranged according to the adjusting and determines target adjusting force, specifically included:
It obtains and adjusts setting, according to the target adjusting force for adjusting and being arranged and determining corresponding to the pedal travel signal.
Further, further include:
Power-assisted setting is obtained, the stroke of the assist motor is controlled according to power-assisted setting.
Further, further include:
When detecting the assist motor failure, the first regulating piston described in regulation motor pull-up is driven.
The present invention provides power-assisted by assist motor, and the pressure of hydraulic regulation chamber is adjusted by regulation motor, due to adjusting The presence of spring so that the pressure of hydraulic regulation chamber is linearly adjustable, so as to pass through the separately adjustable pedal row of the form of calibration Journey and pedal force, degree of regulation are high and smooth.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of hydraulic braking servomechanism of the present invention;
Fig. 2 is a kind of work flow diagram of the brake boost method of hydraulic braking servomechanism of the present invention;
Fig. 3 is a kind of logic diagram of the brake boost method of hydraulic braking servomechanism of the present invention.
Specific implementation mode
The present invention will be further described in detail in the following with reference to the drawings and specific embodiments.
It is as shown in Figure 1 a kind of structural schematic diagram of hydraulic braking servomechanism of the present invention, including:Pedal input shaft 7 helps Force motor M1, regulation motor M2, inject brake fluid hydraulic cylinder 11, connect with the pedal input shaft 7 input piston S1, and The boosting piston S2 of the connection of power-assisted input shaft 8 of the assist motor M1, it is connect with the adjusting input shaft 9 of the regulation motor M2 The first regulating piston S4, main piston S3, adjustment spring 2, the second regulating piston S5 and processor (not shown);
The main piston S3 divides the hydraulic cylinder 11 for hydraulic booster chamber C1 and hydraulic regulation chamber C2, the hydraulic cylinder 11 In the casing wall of the hydraulic booster chamber C1, the first boosting piston hole and the second boosting piston hole, the input piston S1 settings are set In first boosting piston hole, the boosting piston S2 is arranged in second boosting piston hole, and the hydraulic cylinder 11 is in liquid Press the casing wall of adjusting cavity C2 that the first regulating piston hole and the second regulating piston hole are set, the first regulating piston S4 is arranged in institute The first regulating piston hole is stated, the second regulating piston S5 is arranged in second regulating piston hole;
The main piston S3 is provided with close to the side of the hydraulic regulation chamber C2 for connecting with automobile engine master cylinder 13 The output shaft 12 connect, 2 one end of the adjustment spring are connect with the second regulating piston S5, the other end and 13 shell of the master cylinder Connection;
The controller and the assist motor M1, the regulation motor M2 are communicated to connect, and the controller is according to being obtained Master cylinder pressure, hydraulic booster cavity pressure, the hydraulic regulation cavity pressure taken, controls the assist motor M1 and the regulation motor M2。
Specifically, pedal input shaft 7 is connect with pedal 1, and when driver's pedal 1, pedal input shaft 7 pushes input to live S1 is filled in, meanwhile, the case where according to current vehicle, assist motor M1 pushes boosting piston S2, input piston under controller driving The promotion of S1 and input piston S2 so that hydraulic booster chamber C1 generates pressure and main piston S3 is pushed to advance, meanwhile, controller driving Pressure of the regulation motor M2 based on hydraulic regulation chamber C2 adjusts the position of the first regulating piston S4, close due to hydraulic regulation chamber C2 Closing property, it is fixed in hydraulic regulation chamber C2 liquid measures, the position of the second regulating piston S5 can be regulated and controled by fluid flow, And then the decrement or elongation of spring 2 are controlled to adjust, to adjust the hydraulic pressure of hydraulic regulation chamber C2, and then adjust hydraulic booster The pressure difference of chamber C1 and hydraulic regulation chamber C2, the input power of the pressure difference of stroke as master cylinder 13, master cylinder 13 are preferably tandem master Cylinder (Tandem Master Cylinder, TMC).Therefore, pressure=hydraulic regulation chamber C2 that hydraulic booster chamber C1 pressure generates The reaction force for pressure+master cylinder 13 that pressure generates.Therefore in certain pedal travel, regulation motor M2 adjustment springs can be passed through Decrement generates different size of hydraulic booster chamber C1 pressure so that pedal force and power-assisted are adjustable.Due to depositing for adjustment spring 2 So that the pressure of hydraulic regulation chamber C2 is linearly adjustable, and degree of regulation is high and smooth.Therefore, the line of pedal force and power-assisted ratio Property it is adjustable, degree of regulation is high and smooth.
The present invention provides power-assisted by assist motor, and the pressure of hydraulic regulation chamber is adjusted by regulation motor, due to adjusting The presence of spring so that the pressure of hydraulic regulation chamber is linearly adjustable, so as to pass through the separately adjustable pedal row of the form of calibration Journey and pedal force, degree of regulation are high and smooth.
The pedal input shaft 7 includes the entering spindle being connect with the input piston S1 in one of the embodiments, 71 and with the boosting piston S2 have gap Enforceable shaft 72, the entering spindle 71 connect with the Enforceable shaft 72 consolidates It is fixed.
Specifically, the Enforceable shaft 72 of the pedal input shaft 7 of the present embodiment and boosting piston S2 are without being in direct contact, only defeated Enter main shaft 71 push stroke more than boosting piston S2 promotion stroke be more than a certain range in the case of can just contact, entering spindle 71 and input piston S1 is connected, and input piston S1 and boosting piston S2 are respectively cooperating with the different piston holes of hydraulic pressure cavity shell homonymy, It can be in hydraulic cavities axial relative movement so that assist motor M1 directly individually can push boosting piston S2 by power-assisted input shaft 8, By calculating boosting piston S2, the liquid measure pushed in the input piston S1 unit interval and input piston S1, boosting piston S2, main work The sectional area for filling in S3, can calculate the relative displacement in input piston S1 and main piston S3 unit interval, so as to adjust master The relative velocity of piston S3 and input piston S1, since main piston S3 and master cylinder are connected directly, i.e. the motion range of main piston S3 Centainly, so that the journey variable of input piston S1, it is variable to realize pedal travel in this way.
Meanwhile when regulation motor M2 individually fails, the normal power-assisteds of assist motor M1 meet normal demand braking force, But unadjustable pedal force and assist rate.When assist motor M1 individually fails, driver can directly be pushed away by pedal input shaft 7 Dynamic boosting piston S2 and input piston S1 advances jointly so that main piston S3 movements, master cylinder 13 build pressure, and regulation motor M2 can be appropriate So that adjustment spring 2 is extended, relatively low power-assisted is provided.When assist motor M1 and regulation motor M2 fails simultaneously, driver can pass through Pedal input shaft 7 pushes directly on boosting piston S2 and input piston S1 advances jointly so that main piston S3 movements, while needing to protect Hinder the minimum braking requirement of regulation.
In loose pedaling process, pedal 1 drives input piston S1 to be resetted under the action of return spring 6, meanwhile, power-assisted electricity Machine M1 drives boosting piston S2 to follow input piston S1 returns.Preferably, assist motor M1 is non-self-lock-ing motor, then in failure mould Loose pedal, assist motor M1 non-self-lock-ing can be pushed back under the high pressure of hydraulic booster chamber C1 under formula.
Following function may be implemented in the structure of the present embodiment:
1. input shaft stroke is identical, 8 journey variable of power-assisted input shaft of assist motor M1, to realize pedal limit row The adjustment of journey;
2. when automatic Pilot, it can make assist motor M1 that boosting piston S2 individually be pushed to be braked, and defeated It is motionless to enter piston S1, pinch can be led to avoid brake pedal autonomous action;
3. in assist motor M1 and regulation motor M2 failures, driver can push directly on input piston S1 and boosting piston S2 advances together, ensures the minimum braking ability demand of legal failure mode;
4. can be adjusted by boosting piston S2 under Brake energy recovery operating mode so that the holding positions main piston S3, into And it ensures master cylinder 13 and is not pressurized.
Further include the liquid pot 4 being connected to the hydraulic cylinder in one of the embodiments,.
The present embodiment supplements brake fluid by liquid pot 4 to hydraulic cylinder.
The liquid pot 4 is connected to by check valve 10 with the hydraulic cylinder in one of the embodiments,.
The present embodiment controls liquid pot 4 by check valve 10 and supplements brake fluid to hydraulic cylinder, avoid brake fluid from hydraulic cylinder into Enter liquid pot 4.
The check valve 10 is provided with preset pretightning force in one of the embodiments,.
Check valve 10 of the present embodiment in liquid Hu4Chu has certain pretightning force, ensures and reaches certain in pressure at both sides difference One-way conduction brake fluid is just understood when degree so that liquid pot 4 only supplements brake fluid when brake fluid is revealed to hydraulic cylinder.
The adjusting input shaft 9 of the regulation motor M2 is provided with self-locking mechanism in one of the embodiments,.
In the present embodiment, the adjusting input shaft 9 of regulation motor M2 has latching characteristics preferably on transmission mechanism, is falling Under electricity or other failure conditions, it is ensured that pressure remained steady in hydraulic regulation chamber C2 avoids leading to accident because of hypotony To hydraulic regulation chamber C2 fluid infusion bodies.Simultaneously electricity is adjusted if you do not need to using the first regulating piston S4 in course of normal operation Machine M2 can be in standby mode, reduce power consumption and the requirement to motor.
First regulating piston hole, which is provided with, in one of the embodiments, limits the first regulating piston S4 activities The limited block 3 of distance.
The present embodiment increases limited block 3, further avoids causing surprisingly to hydraulic regulation chamber C2 fluid infusion bodies because of hypotony.
Effect of the invention is that
(1) for liquid as pressure transmission intermediary, resiliency is preferable, and controllability is high.
(2) pedal travel adjust and assist rate (pedal force) adjust decoupling, it can be achieved that new brake feel by and real time stepless Brake feel is adjusted.
(3) presence of adjusting cavity can accurately adjust assist rate, pedal force, stroke and compensation system by negative-feedback in real time Error of uniting and friction so that in the allowable range of preset calibrations, system assembly and manufacture are required low.And in assist motor list Can compensate for brake force when one failure does not influence vehicle stopping power when regulation motor fails.
(4) it can ensure in the case where brake pedal does not sink, actively be braked.
(5) braking regeneration energy regenerating can be supported, i.e., pedal master cylinder does not build pressure in prescribed limit.
As shown in Fig. 2, a kind of workflow of the brake boost method of foregoing hydraulic braking servomechanism of the present invention The controller of Cheng Tu, the hydraulic braking servomechanism execute:
Step S201 obtains vehicle brake request, determines the goal pressure of master cylinder;
Step S202 drives assist motor so that the pressure of master cylinder reaches goal pressure;
Step S203 is obtained and is adjusted setting, is arranged according to the adjusting and is determined target adjusting force;
Step S204 drives regulation motor so that hydraulic pressure tune while keeping the pressure of master cylinder to maintain goal pressure The pressure of section chamber reaches target adjusting force.
The present invention is by driving assist motor, to realize the adjusting to the pedal travel of driver, and by adjusting electricity Machine, to realize the adjusting of driver pedal power.
In one of the embodiments:
The acquisition vehicle brake request, determines the target power-assisted of hydraulic booster chamber, specifically includes:Obtain pedal travel letter Number and vehicle braking demand, the goal pressure of master cylinder is determined according to the pedal travel signal and vehicle braking demand;
The acquisition adjusts setting, is arranged according to the adjusting and determines target adjusting force, specifically included:
It obtains and adjusts setting, according to the target adjusting force for adjusting and being arranged and determining corresponding to the pedal travel signal.
Specifically, pedal row can be detected by the input shaft stroke sensor being arranged near pedal input shaft 7 Journey detects the pressure of hydraulic booster chamber by the way that the pressure sensor in hydraulic booster chamber is arranged, by being arranged in hydraulic regulation chamber Pressure sensor detection hydraulic regulation chamber pressure, by be arranged main chamber pressure sensor detect main chamber pressure.
As preferred embodiment, as shown in Figure 3:
Step S301, driver step on pedal, and processor receives pedal signal, judge operator brake demand.
Step S302, processor judge whether there is other braking requirements and energy regenerating operating mode according to vehicle operating mode, determine The target, pressure generated needed for the size of required mechanical braking, i.e. TMC tandem master cylinders.
Step S303 controls assist motor M1 according to master cylinder target, pressure, to control boosting piston S2 movements, with defeated Enter piston S1 together, determines the stroke of main piston S3, since the input shaft of main piston S3 and TMC tandem master cylinders is connected, main work The stroke of plug S3 can determine the pressure of TMC tandem master cylinders.TMC tandem master cylinder pressure is transmitted in wheel cylinder, then will produce Corresponding mechanical braking force.
Step S303 verifies the TMC tandem master cylinders and vehicle deceleration that detect, is controlled by assist motor M1 System realizes closed-loop control so that master cylinder reaches target, pressure.
Step S304, according to the pedal sense aim curve demarcated in advance, adjusts M2 electricity while realizing mechanical braking force Machine, the instant pressure for controlling hydraulic booster chamber C1 and hydraulic regulation chamber C2 is poor, by main piston S3 stress balances, to adjust liquid Power-assisted chamber C1 pressure is pressed, closed-loop control is carried out to regulation motor M2 according to the pressure feedback of hydraulic booster chamber C1, realization is accordingly stepped on Target pedal force under plate stroke.
Further include in one of the embodiments,:
Power-assisted setting is obtained, the stroke of the assist motor is controlled according to power-assisted setting.
The present embodiment can determine the stroke of boosting piston S2 according to the different setting of user, due to hydraulic booster chamber C1 Total measurement (volume) be it is fixed, by adjust assist motor M1 stroke, so as to adjust the movement travel of boosting piston S2, Jin Ershi Now to the adjusting of input piston S1 strokes.
Further include in one of the embodiments,:
When detecting the assist motor failure, the first regulating piston described in regulation motor pull-up is driven.
For the present embodiment when assist motor M1 fails, regulation motor M2 can be by drawing the realization of S4 pistons actively to reduce hydraulic pressure tune The pressure for saving chamber C2 is providing a degree of brake boost, is reducing driver's strength of one's legs demand.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously Cannot the limitation to the scope of the claims of the present invention therefore be interpreted as.It should be pointed out that for those of ordinary skill in the art For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention Protect range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.

Claims (11)

1. a kind of hydraulic braking servomechanism, which is characterized in that including:Pedal input shaft, assist motor, regulation motor, injection The hydraulic cylinder of brake fluid inputs axis connection with the input piston of pedal input axis connection, with the power-assisted of the assist motor Boosting piston, with adjusting input the first regulating piston of axis connection of the regulation motor, main piston, adjustment spring, second Regulating piston and processor;
The hydraulic cylinder is divided into hydraulic booster chamber and hydraulic regulation chamber by the main piston, and the hydraulic cylinder is in the hydraulic booster The first boosting piston hole and the second boosting piston hole is arranged in the casing wall of chamber, and the input piston is arranged in first boosting piston Hole, the boosting piston setting are arranged first in second boosting piston hole, the hydraulic cylinder in the casing wall of hydraulic regulation chamber Regulating piston hole and the second regulating piston hole, first regulating piston setting is in first regulating piston hole, and described second Regulating piston is arranged in second regulating piston hole;
The main piston is provided with the output shaft for being connect with automobile engine master cylinder close to the side of the hydraulic regulation chamber, Described adjustment spring one end is connect with second regulating piston, the other end and the master cylinder cage connection;
The controller is communicated to connect with the assist motor, the regulation motor, and the controller is according to acquired master cylinder Pressure, hydraulic booster cavity pressure, hydraulic regulation cavity pressure, control the assist motor and the regulation motor.
2. hydraulic braking servomechanism according to claim 1, which is characterized in that the pedal input shaft include with it is described Input piston connection entering spindle and with the boosting piston have gap Enforceable shaft, the entering spindle with it is described Enforceable shaft is connected and fixed.
3. hydraulic braking servomechanism according to claim 1, which is characterized in that further include being connected to the hydraulic cylinder Liquid pot.
4. hydraulic braking servomechanism according to claim 3, which is characterized in that the liquid pot by check valve with it is described Hydraulic cylinder is connected to.
5. hydraulic braking servomechanism according to claim 4, which is characterized in that the check valve is provided with preset pre- Clamp force.
6. hydraulic braking servomechanism according to claim 1, which is characterized in that the adjusting input shaft of the regulation motor It is provided with self-locking mechanism.
7. hydraulic braking servomechanism according to claim 1, which is characterized in that first regulating piston hole is provided with Limit the limited block of the first regulating piston operating range.
8. a kind of brake boost method of such as claim 1~7 any one of them hydraulic braking servomechanism, feature exist In the controller of the hydraulic braking servomechanism executes:
Vehicle brake request is obtained, determines the goal pressure of master cylinder;
Drive assist motor so that the pressure of master cylinder reaches goal pressure;
It obtains and adjusts setting, be arranged according to the adjusting and determine target adjusting force;
While keeping the pressure of master cylinder to maintain goal pressure, regulation motor is driven so that the pressure of hydraulic regulation chamber reaches To target adjusting force.
9. brake boost method according to claim 8, it is characterised in that:
The acquisition vehicle brake request, determines the target power-assisted of hydraulic booster chamber, specifically includes:Obtain pedal travel signal with And vehicle braking demand, the goal pressure of master cylinder is determined according to the pedal travel signal and vehicle braking demand;
The acquisition adjusts setting, is arranged according to the adjusting and determines target adjusting force, specifically included:
It obtains and adjusts setting, according to the target adjusting force for adjusting and being arranged and determining corresponding to the pedal travel signal.
10. relating to the brake boost method told according to claim 9, which is characterized in that further include:
Power-assisted setting is obtained, the stroke of the assist motor is controlled according to power-assisted setting.
11. brake boost method according to claim 8, which is characterized in that further include:
When detecting the assist motor failure, the first regulating piston described in regulation motor pull-up is driven.
CN201810562020.6A 2018-06-04 2018-06-04 Hydraulic brake boosting mechanism and boosting adjusting method thereof Active CN108545072B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810562020.6A CN108545072B (en) 2018-06-04 2018-06-04 Hydraulic brake boosting mechanism and boosting adjusting method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810562020.6A CN108545072B (en) 2018-06-04 2018-06-04 Hydraulic brake boosting mechanism and boosting adjusting method thereof

Publications (2)

Publication Number Publication Date
CN108545072A true CN108545072A (en) 2018-09-18
CN108545072B CN108545072B (en) 2021-01-29

Family

ID=63511786

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810562020.6A Active CN108545072B (en) 2018-06-04 2018-06-04 Hydraulic brake boosting mechanism and boosting adjusting method thereof

Country Status (1)

Country Link
CN (1) CN108545072B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117284252A (en) * 2023-11-27 2023-12-26 天津所托瑞安汽车科技有限公司 Vehicle self-adaptive braking method and device, electronic equipment and storage medium

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3767274A (en) * 1971-02-01 1973-10-23 Graubremse Gmbh Automatic load-dependent braking force regulator
CN103950445A (en) * 2014-04-14 2014-07-30 同济大学 Hydraulic double-motor driving electronic hydraulic braking system
CN104724097A (en) * 2015-02-03 2015-06-24 北京航空航天大学 Dual-motor drive-by-wire pressure sequence adjusting brake system
CN106585602A (en) * 2015-10-20 2017-04-26 上海汇众汽车制造有限公司 Double-motor dynamo-electric brake power-assisted mechanism
CN206406908U (en) * 2017-01-17 2017-08-15 吉林大学 A kind of motor driving EHB for improving master cylinder

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3767274A (en) * 1971-02-01 1973-10-23 Graubremse Gmbh Automatic load-dependent braking force regulator
CN103950445A (en) * 2014-04-14 2014-07-30 同济大学 Hydraulic double-motor driving electronic hydraulic braking system
CN104724097A (en) * 2015-02-03 2015-06-24 北京航空航天大学 Dual-motor drive-by-wire pressure sequence adjusting brake system
CN106585602A (en) * 2015-10-20 2017-04-26 上海汇众汽车制造有限公司 Double-motor dynamo-electric brake power-assisted mechanism
CN206406908U (en) * 2017-01-17 2017-08-15 吉林大学 A kind of motor driving EHB for improving master cylinder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117284252A (en) * 2023-11-27 2023-12-26 天津所托瑞安汽车科技有限公司 Vehicle self-adaptive braking method and device, electronic equipment and storage medium
CN117284252B (en) * 2023-11-27 2024-02-06 天津所托瑞安汽车科技有限公司 Vehicle self-adaptive braking method and device, electronic equipment and storage medium

Also Published As

Publication number Publication date
CN108545072B (en) 2021-01-29

Similar Documents

Publication Publication Date Title
CN110065480B (en) Wire control electronic hydraulic brake system based on accumulator compensation and control method
CN106891878B (en) Motor-driven electronic hydraulic brake system with improved master cylinder
US8899696B2 (en) Brake booster, and method and device for the operation thereof
US9227613B2 (en) Vehicle brake device
US8959909B2 (en) Vehicle brake system
US20230016413A1 (en) Brake device, in particular for electrically driven motor vehicles
CN105799679B (en) Oil pressure energy assisted braking system and its control method
KR102029306B1 (en) Method for operating a recuperative brake system of a vehicle, control device for a recuperative brake system of a vehicle, and recuperative brake system
US9545904B2 (en) Braking control device for vehicle
US9403514B2 (en) Brake control device for vehicle
US20110285199A1 (en) Brake device
CN103347755B (en) For the method and apparatus controlling electro-hydraulic brake system
US8380415B2 (en) Brake control apparatus and motor rotational speed computation method used in said brake control apparatus
CN102046441A (en) Adjustable brake booster
CN104684773A (en) Method for controlling a braking system for motor vehicles
CN101793275A (en) High-precision hydraulic servo control system
US20150001916A1 (en) Brake system for vehicle designed to produce braking force in case of loss of electric power
CA2913287C (en) Vehicle brake device
US9919687B2 (en) Hydraulic braking system
US20150000266A1 (en) Brake system for vehicle designed to improve mountability
US8768591B2 (en) Method for operating a boosted brake system of a vehicle and control device for a boosted brake system of a vehicle
CN108545072A (en) Hydraulic braking servomechanism and its power-assisted adjusting method
US10940847B2 (en) Brake control device
JP6399341B2 (en) Brake control device
US20190193695A1 (en) Vehicle braking device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant