CN1785727A - Hydraulic assisted braking system of electric power automobile - Google Patents

Hydraulic assisted braking system of electric power automobile Download PDF

Info

Publication number
CN1785727A
CN1785727A CN 200410089429 CN200410089429A CN1785727A CN 1785727 A CN1785727 A CN 1785727A CN 200410089429 CN200410089429 CN 200410089429 CN 200410089429 A CN200410089429 A CN 200410089429A CN 1785727 A CN1785727 A CN 1785727A
Authority
CN
China
Prior art keywords
hydraulic
brake
control unit
ecu
braking
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
CN 200410089429
Other languages
Chinese (zh)
Other versions
CN100402354C (en
Inventor
刘波
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.)
BYD Co Ltd
Original Assignee
BYD 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 BYD Co Ltd filed Critical BYD Co Ltd
Priority to CNB2004100894299A priority Critical patent/CN100402354C/en
Publication of CN1785727A publication Critical patent/CN1785727A/en
Application granted granted Critical
Publication of CN100402354C publication Critical patent/CN100402354C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The present invention discloses a hydraulic energy assisted braking system of electric automobile. It includes a brake main cylinder, a brake petal mechanism and a pipeline device. It is characterized by that said system also includes a hydraulic energy-assisted body communicated with said brake main cylinder, said brake petal mechanism also includes an angle sensor connected with brake petal turning shaft and an electric control unit connected with said angle sensor, and said pipeline device includes a brake fluid inlet pipe, a brake fluid-returning pipe, a fluid feeding valve and a fluid returning valve.

Description

Hydraulic assisted braking system of electric power automobile
Technical field
The present invention relates to a kind of automobile hydraulic energy assisted braking system, particularly a kind of hydraulic assisted braking system of electric power automobile.
Background technology
Automobile powered by conventional energy utilizes vacuum booster as brake servo unit usually, mainly utilizes the degree of vacuum at driving engine trunnion place to help the pilot control brake pedal, to reach power-assisted effect.Mate vacuum booster on braking system of electric car, engine negative pressure effect so degree of vacuum are too not little owing to having, and can not reach tangible labour-saving effect.
Summary of the invention
The objective of the invention is to address the above problem, a kind of hydraulic assisted braking system of electric power automobile is provided.
The objective of the invention is by following existing techniques in realizing:
A kind of hydraulic assisted braking system of electric power automobile, comprise a master brake cylinder, a brake treadle mechanism and a pepe installation, native system also comprises a hydraulic booster body that communicates with this master brake cylinder, this brake treadle mechanism also comprise one with a brake pedal turning cylinder bonded assembly angular transducer and an ECU (Electrical Control Unit) that links to each other with this angular transducer, this pepe installation comprises a braking feed tube that is connected on this hydraulic booster body, a braking liquid back pipe that is connected on this hydraulic booster body, a feed liquor valve that is connected with this ECU (Electrical Control Unit) that is arranged on this braking feed tube is arranged on this braking liquid back pipe and time liquid valve that be connected with this ECU (Electrical Control Unit) with one.
Wherein, this angular transducer passes to this ECU (Electrical Control Unit) with the angular signal of the brake pedal of acquisition, and this feed liquor valve opens or cuts out according to the control signal of this ECU (Electrical Control Unit), and this time liquid valve opens or cuts out according to the control signal of this ECU (Electrical Control Unit).
Wherein, this hydraulic booster body comprises that a hydraulic cavities, one are arranged in this hydraulic cavities and boosting piston and a dust boot that is fixed on this hydraulic cavities that link to each other with brake push rod.
Wherein, this braking feed tube links to each other with the energy storage tank of hydraulic power-assist steering system, and this braking liquid back pipe links to each other with the fluid reservoir of this hydraulic power-assist steering system.
Positive progressive effect of the present invention is: at first, make electronlmobil can give up the vacuum brake work-saving device, solved on the electronlmobil and to have made the bad problem of power-assisted effect owing to degree of vacuum is not high, secondly, use the hydraulic coupling that hydraulic power-assist steering system produces, divide a pipeline on brake system, to come, reduced the shared space of system, simultaneously can cost-cutting.
Description of drawings
Fig. 1 is the initial position scheme drawing of one embodiment of the invention.
Fig. 2 is the scheme drawing after the brake pedal of one embodiment of the invention moves.
The specific embodiment
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to describe technical scheme of the present invention in detail.
As shown in Figure 1, a kind of hydraulic assisted braking system of electric power automobile, comprise a master brake cylinder 1, a brake treadle mechanism and a pepe installation, native system also comprises a hydraulic booster body 2 that communicates with this master brake cylinder 1, comprises that a hydraulic cavities 4, one are arranged in this hydraulic cavities 4 and boosting piston 3 and dust boots 5 that are fixed on this hydraulic cavities 4 that link to each other with brake push rod 6;
This brake treadle mechanism also comprise one with a brake pedal turning cylinder bonded assembly angular transducer 9 and an ECU (Electrical Control Unit) 10 that links to each other with this angular transducer 9, this angular transducer 9 can pass to this ECU (Electrical Control Unit) 10 with the angular signal of the brake pedal 7 that obtains;
This pepe installation comprise one be connected braking feed tube 13 on this hydraulic booster body 2, one be connected braking liquid back pipe 14 on this hydraulic booster body 2, one be arranged on this braking feed tube 13 the feed liquor valve 11 that is connected with this ECU (Electrical Control Unit) 10 with one be arranged on this braking liquid back pipe 14 and be connected with this ECU (Electrical Control Unit) 10 return liquid valve 12, this braking feed tube 13 links to each other with the energy storage tank 15 of hydraulic power-assist steering system 17, and this braking liquid back pipe 14 links to each other with the fluid reservoir 16 of this hydraulic power-assist steering system 17.
At initial position, feed liquor valve 11 and time liquid valve 12 all are in normally off, when chaufeur is stepped on brake pedal 7, angular transducer 9 obtains the positive angular signal (signal of brake activation direction) of brake pedal 7, and pass to ECU (Electrical Control Unit) 10, ECU (Electrical Control Unit) 10 is sent signal to feed liquor valve 11, and feed liquor valve 11 is opened.
If sometime, the cireular frequency that ECU (Electrical Control Unit) 10 is judged the angular signal of the brake pedal that obtains from angular transducer 9 is zero, just is the pressure hold mode at this moment, and ECU (Electrical Control Unit) 10 is sent signal at stop feed liquor valve 11.
If it is negative that ECU (Electrical Control Unit) 10 is judged the angular signal of the brake pedal 7 of angular transducer 9 acquisitions, be that chaufeur reduces the pressure that is applied on the brake pedal 7, brake pedal 7 moves to initial position under the effect of pull back spring, ECU (Electrical Control Unit) 10 is just closed feed liquor valve 11, and opens back liquid valve 12.

Claims (4)

1, a kind of hydraulic assisted braking system of electric power automobile, comprise a master brake cylinder, a brake treadle mechanism and a pepe installation, it is characterized in that, native system also comprises a hydraulic booster body that communicates with this master brake cylinder, this brake treadle mechanism also comprise one with a brake pedal turning cylinder bonded assembly angular transducer and an ECU (Electrical Control Unit) that links to each other with this angular transducer, this pepe installation comprises a braking feed tube that is connected on this hydraulic booster body, a braking liquid back pipe that is connected on this hydraulic booster body, a feed liquor valve that is connected with this ECU (Electrical Control Unit) that is arranged on this braking feed tube is arranged on this braking liquid back pipe and time liquid valve that be connected with this ECU (Electrical Control Unit) with one.
2, hydraulic assisted braking system of electric power automobile according to claim 1, it is characterized in that, this angular transducer passes to this ECU (Electrical Control Unit) with the angular signal of the brake pedal of acquisition, this feed liquor valve opens or cuts out according to the control signal of this ECU (Electrical Control Unit), and this time liquid valve opens or cuts out according to the control signal of this ECU (Electrical Control Unit).
3, hydraulic assisted braking system of electric power automobile according to claim 2, it is characterized in that this hydraulic booster body comprises that a hydraulic cavities, one are arranged in this hydraulic cavities and boosting piston and a dust boot that is fixed on this hydraulic cavities that link to each other with brake push rod.
According to claim 1,2 or 3 described hydraulic assisted braking system of electric power automobile, it is characterized in that 4, this braking feed tube links to each other with the energy storage tank of hydraulic power-assist steering system, this braking liquid back pipe links to each other with the fluid reservoir of this hydraulic power-assist steering system.
CNB2004100894299A 2004-12-10 2004-12-10 Hydraulic assisted braking system of electric power automobile Expired - Fee Related CN100402354C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2004100894299A CN100402354C (en) 2004-12-10 2004-12-10 Hydraulic assisted braking system of electric power automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2004100894299A CN100402354C (en) 2004-12-10 2004-12-10 Hydraulic assisted braking system of electric power automobile

Publications (2)

Publication Number Publication Date
CN1785727A true CN1785727A (en) 2006-06-14
CN100402354C CN100402354C (en) 2008-07-16

Family

ID=36783360

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2004100894299A Expired - Fee Related CN100402354C (en) 2004-12-10 2004-12-10 Hydraulic assisted braking system of electric power automobile

Country Status (1)

Country Link
CN (1) CN100402354C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101863269A (en) * 2010-06-18 2010-10-20 奇瑞汽车股份有限公司 Electronic braking pedal
CN103738328A (en) * 2013-12-31 2014-04-23 合肥德通电驱动系统有限公司 Brake device for electric vehicle
CN106347335A (en) * 2016-10-11 2017-01-25 浙江吉利控股集团有限公司 Assistance system for vehicle

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10192480D2 (en) * 2000-06-20 2003-08-28 Continental Teves Ag & Co Ohg Electro-hydraulic brake system for motor vehicles
DE10232054B4 (en) * 2002-07-16 2004-08-12 Robert Bosch Gmbh Hydraulic vehicle brake system and brake actuation unit
DE10235373B4 (en) * 2002-08-02 2011-04-07 Robert Bosch Gmbh Method for testing a hydraulic vehicle brake system for undissolved gas in the brake fluid
KR20040034152A (en) * 2002-10-21 2004-04-28 현대자동차주식회사 Auxiliary brake system in vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101863269A (en) * 2010-06-18 2010-10-20 奇瑞汽车股份有限公司 Electronic braking pedal
CN103738328A (en) * 2013-12-31 2014-04-23 合肥德通电驱动系统有限公司 Brake device for electric vehicle
CN106347335A (en) * 2016-10-11 2017-01-25 浙江吉利控股集团有限公司 Assistance system for vehicle
CN106347335B (en) * 2016-10-11 2019-08-30 浙江吉利控股集团有限公司 A kind of force aid system for vehicle

Also Published As

Publication number Publication date
CN100402354C (en) 2008-07-16

Similar Documents

Publication Publication Date Title
CN106891878B (en) Motor-driven electronic hydraulic brake system with improved master cylinder
CN109177944B (en) Hydraulically-coupled electronic hydraulic brake system
US9002608B2 (en) Electro-hydraulic brake-by-wire system and method
US8874341B2 (en) Electronic brake actuator brake-by-wire system and method
CN103950445A (en) Hydraulic double-motor driving electronic hydraulic braking system
CN110155014B (en) Fully-decoupled dual-backup electronic hydraulic brake system
CN105667485B (en) A kind of energy assisted braking system for automobile
CN104760586A (en) Double-motor driving type electronic hydraulic brake system capable of actively simulating pedal feeling
CN106427967B (en) Linear control braking system for full-mechanical decoupling automobile
CN113147704B (en) Vehicle brake-by-wire system and braking method thereof
CN104859625A (en) Vehicle integrated electro-hydraulic brake (EHB) system
CN110155013B (en) Integrated hydraulic and mechanical force coupled electric power-assisted brake system
CN105584471A (en) Braking operating mechanism used for electric vehicle and integrating power assisting function
CN110654363A (en) Distributed brake system with parking function and pressure regulation control method thereof
CN112141066A (en) Integrated electronic control brake system of new energy automobile
CN205417597U (en) Integrated automatically controlled hydraulic braking system of vehicle
CN113104014A (en) Vehicle full-decoupling electro-hydraulic servo brake device and brake method thereof
CN109878486B (en) Hydraulic and mechanical force coupled electric power-assisted brake system
CN109159776A (en) A kind of vehicle wheel cylinder hydraulic force control system and method based on dual power source
CN1785727A (en) Hydraulic assisted braking system of electric power automobile
CN209870363U (en) Electric power-assisted braking system without partial decoupling of feedback plate
CN215204841U (en) Automobile line control electronic hydraulic brake system
CN214607468U (en) Braking assistance system
Hu et al. Research of Brake by Wire System
US20110160971A1 (en) Electro-Hydraulic Brake Brake-By-Wire System and Method

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20080716

CF01 Termination of patent right due to non-payment of annual fee