CN107161127A - A kind of tractor service brake and auxiliary braking combined brake control method - Google Patents

A kind of tractor service brake and auxiliary braking combined brake control method Download PDF

Info

Publication number
CN107161127A
CN107161127A CN201710263459.4A CN201710263459A CN107161127A CN 107161127 A CN107161127 A CN 107161127A CN 201710263459 A CN201710263459 A CN 201710263459A CN 107161127 A CN107161127 A CN 107161127A
Authority
CN
China
Prior art keywords
slip rate
wheel slip
tractor
control device
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
CN201710263459.4A
Other languages
Chinese (zh)
Other versions
CN107161127B (en
Inventor
王宣锋
付雷
王哲
张延平
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.)
Changchun Automotive Test Center Co ltd
FAW Group Corp
Original Assignee
FAW Group Corp
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 FAW Group Corp filed Critical FAW Group Corp
Priority to CN201710263459.4A priority Critical patent/CN107161127B/en
Publication of CN107161127A publication Critical patent/CN107161127A/en
Application granted granted Critical
Publication of CN107161127B publication Critical patent/CN107161127B/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
    • B60T8/00Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/17Using electrical or electronic regulation means to control braking
    • B60T8/1755Brake regulation specially adapted to control the stability of the vehicle, e.g. taking into account yaw rate or transverse acceleration in a curve
    • 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
    • B60T8/00Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/17Using electrical or electronic regulation means to control braking
    • B60T8/176Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS
    • B60T8/1761Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS responsive to wheel or brake dynamics, e.g. wheel slip, wheel acceleration or rate of change of brake fluid pressure
    • 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
    • B60T2201/00Particular use of vehicle brake systems; Special systems using also the brakes; Special software modules within the brake system controller
    • B60T2201/03Brake assistants

Abstract

The present invention relates to a kind of tractor service brake and auxiliary braking combined brake control method.In the case of being had turned on for tractor EBA, driver and brake pedal, the braking moment that now auxiliary braking and service brake are produced is superimposed upon the problem of vehicle rear axle causes vehicle braking force distribution inequality, causes rear axle locking or sideslip, propose the control method of a kind of tractor braking and auxiliary braking Associated brake, the brake force dynamically distributes good to realize, prevent locking and sideslip caused by the braking superposition of tractor rear axle.The present invention not only improves vehicle insensitivity by slip-based controller, reduce tractor seized and sideslip caused by rear axle braking superposition, improve vehicle insensitivity and driving safety, and by reasonably utilizing EBA, vehicle tyre and friction disc wear are reduced, conevying efficiency and economic benefit is improved.

Description

A kind of tractor service brake and auxiliary braking combined brake control method
Technical field
The invention belongs to motor vehicle braking system control technology field, it is related to a kind of tractor service brake and auxiliary braking connection Close brake control method.
Background technology
With the increase of highway in China mileage, the ratio that highway transportation is taken on transport market at home is increasing.It is right In the vehicle of mountain area highway transportation, because long descending section is more, continuous braking for a long time can cause brake-shoe temperature too high, brake Torque declines, situations such as vehicle brake fade, therefore installs the tractor of auxiliary braking and also increasingly popularize in transit.
Although EBA is reduced long down hill braking decay, reduces tire wear, the advantages of saving cost, by Have that stopping power is limited, the defect such as braking torque change with the change of rotating speed/speed in itself in EBA, at present absolutely Most of tractor EBA and service braking system, which are intended only as single system, to be present, under some special operation conditions Easily there is auxiliary braking and service brake is uncoordinated, the problem of vehicle braking force distribution is uneven.Such as long descending road conditions are used Auxiliary braking is, it is necessary to turn, slow down or during brake hard, and driver enables service brake, and service brake and auxiliary braking are produced Braking moment collective effect in vehicle rear axle, there is the excessive easy generation rear axle locking and sideslip of vehicle braking force square superposition Danger.
Chinese patent CN105235664A discloses a kind of heavy-duty car retarder integrated control method, and the control method exists Retarder function can the slow switch of automatic detection intelligence, the slow function of activation intelligence after opening.The slow function of intelligence is a kind of base In the control method of brake pedal aperture Intelligent adjustment retarder braking power, during do not need driver regulation retarder hand Handle, aids in vehicle to carry out retarding braking by brake pedal aperture regulation retarder braking power.When brake pedal aperture is 0% The moment of torsion control of retarder 0%~100% is realized in~25% open range, when brake pedal aperture reaches 25%, retarder Perform the moment of torsion control of maximum brake power -100%.But the control accuracy of such a integrated control method is low, in middle small intensity system When dynamic, it is difficult to which the required severity of braking of driver, when actuating brake pedal 25%, retarder 100% are arrived in accurate control Effect, such a method is easier to cause that vehicle braking force distribution is uneven, and severity of braking is excessive, and braking pitching is serious, comfortableness compared with Difference.
Chinese patent CN104044571A discloses a kind of truck combination associated braking system and method, by trailer Retarder is installed in face, is realized trailer air-pressure brake and is hung the Associated brake of retarder for vehicles, when speed is more than 10km/h, joint system Dynamic System Priority is braked using retarder, and when the brake force that retarder is provided is insufficient for demand, executing agency makes retarder Braked simultaneously with trailer service brake, but this invention only takes into account the state of trailer, and the brake force that retarder is provided is averaged It is assigned on each axletree of trailer, but for installing the tractor of retarder, the brake force that retarder is provided is acted only on Above driving wheel, therefore control method in foregoing invention is not applied to tractor.
To sum up, during driver uses auxiliary braking, system has been stepped on according to actual travel situation such as speed is too fast etc. Dynamic pedal, service brake is applied with to vehicle again, and the braking moment that auxiliary braking and service brake are produced is superimposed upon vehicle rear axle Vehicle braking force distribution inequality can be caused, cause rear axle locking or sideslip.The vehicle of existing matching auxiliary braking lacks one kind Crucial control method makes EBA cooperate with traditional service braking system to realize dynamic that vehicle is good Braking force distribution.
The content of the invention
The purpose of the present invention is that there is provided a kind of tractor service brake and auxiliary for above-mentioned the deficiencies in the prior art Braking combined brake control method is helped, the good braking force distribution to realize prevents that the braking superposition of tractor rear axle is caused Locking and sideslip.
The purpose of the present invention is achieved through the following technical solutions:
A kind of tractor service brake and auxiliary braking combined brake control method, comprise the following steps:
A, vehicle control device VCU judge that tractor enters major-minor coordinated signals function, and monitor and up till now function ought open shape State;
B, vehicle control device VCU judge whether current vehicle speed V is more than minimum setting vehicle velocity V min, such as V>Vmin, performs step Rapid c, on the contrary then execution step m;
C, vehicle control device VCU are according to current working speed, each wheel each wheel slip rate S of wheel speed calculation vehicle and record;
D, vehicle control device VCU judge whether now service brake participates according to brake pedal displacement transducer, in this way then Into step e;If not, performing step h;
E, vehicle control device VCU judge tractor rear wheel slip rate SrWhether rear wheel slip rate threshold value S is reached1, such as draw Back wheels of vehicle slip rate SrLess than or equal to rear wheel slip rate threshold value S1, perform step f;Such as tractor rear wheel slip rate SrAfter being more than Wheel slip rate threshold value S1, perform step g;
F, vehicle control device VCU keep and continue before major-minor linkage work state;
G, vehicle control device VCU send pressurize instruction, and actuating mechanism controls trailing wheel ABS magnetic valves keep existing pressure, and Judge tractor front wheel slip rate SfWhether front wheel slip rate threshold value S is reached2;Such as front wheel slip rate SfLess than or equal to preceding skidding Shifting rate threshold value S2, perform step f;Such as front wheel slip rate SfMore than front wheel slip rate threshold value S2, vehicle control device VCU activation ABS anti-lock braking system(ABS)s, are simultaneously emitted by instruction and exit EBA;
H, vehicle control device VCU judge the working condition of retarder and engine braking, and such as only retarder works, and perform Step i;Such as retarder and engine braking work simultaneously, perform step k;
I, vehicle control device VCU judge tractor rear wheel slip rate SrWhether rear wheel slip rate threshold value S is reached1;As drawn Back wheels of vehicle slip rate SrLess than or equal to rear wheel slip rate threshold value S1, perform step f;Such as tractor rear wheel slip rate SrAfter being more than Wheel slip rate threshold value S1, perform step j;
J, vehicle control device VCU send reduction torque command to buffer controller RCU, and retarder RCU, which sends instruction, to be made Respective execution mechanisms reduce braking torque;
K, vehicle control device VCU judge tractor rear wheel slip rate SrWhether rear wheel slip rate threshold value S is reached1, such as draw Back wheels of vehicle slip rate SrLess than or equal to rear wheel slip rate threshold value S1, perform step f;Such as tractor rear wheel slip rate SrAfter being more than Wheel slip rate threshold value S1, perform step l;
L, vehicle control device VCU send releasing engine braking command, and engine braking is released, while to retarder RCU Reduction torque command is sent, retarder RCU, which sends instruction, makes respective execution mechanisms reduce braking torque;
M, vehicle control device VCU monitor whether major-minor coordinated signals function is cancelled, in this way, perform step n;Such as no, execution Step b;
N, exit major-minor coordinated signals function.
Compared with prior art, the beneficial effect of invention is:The present invention is auxiliary by controlling whole vehicle controller to realize Jointly controlling for brakes and service braking system is helped, vehicle insensitivity is improved by the control of wheel slip, subtracted Lack tractor seized and sideslip caused by rear axle braking superposition, improve vehicle insensitivity and driving safety, And by reasonably utilize EBA, reduce vehicle tyre abrasion and friction disc wear, improve conevying efficiency and Economic benefit.
Brief description of the drawings
Fig. 1 is tractor service brake of the present invention and auxiliary braking associated braking system control method flow chart.
Embodiment
The embodiment that the invention will now be described in detail with reference to the accompanying drawings.
As shown in figure 1, after vehicle control device VCU monitors that the major-minor coordinated signals function of tractor is opened, according to current work The car speed of condition, the wheel speed calculation of each wheel go out the slip rate S that now vehicle is respectively taken turns, and judge that current vehicle speed is set with minimum Determine vehicle velocity V min size, such as current vehicle speed V is less than or equal to minimum setting vehicle velocity V min, then judges that major-minor coordinated signals function is It is no to be cancelled, such as cancel, then exit.
As current vehicle speed V is sentenced more than minimum setting vehicle velocity V min, vehicle control device VCU by brake pedal displacement transducer It is disconnected to whether there is service brake, such as there is the participation of service brake, vehicle control device starts to judge tractor rear wheel slip rate Sr Whether rear wheel slip rate threshold value S is reached1If, tractor rear wheel slip rate SrLess than or equal to rear wheel slip rate threshold value S1, car Controller keep and continue before major-minor linkage work state;If tractor rear wheel slip rate SrMore than rear wheel slip rate Threshold value S1, vehicle control device VCU send pressurize instruction, actuating mechanism controls trailing wheel ABS magnetic valves to keep existing pressure, and Continue to monitor front wheel slip rate SfIf, now front wheel slip rate SfReach threshold value S2, vehicle triggering ABS anti-lock braking system(ABS)s, EBA is exited, and brake control function is transferred to abs controller control by vehicle control device VCU.Such as front wheel slip rate Sf Not up to slip rate threshold value S2, vehicle control device keep and continue before major-minor linkage work state.
Such as vehicle control device VCU is judged now in the absence of service brake, then carries out EBA Inner link judgement, Judge major-minor Associated brake whether by retarder independent brake.If only retarder mode of operation, vehicle control device VCU judges Tractor rear wheel slip rate SrWith rear wheel slip rate threshold value S1Size, such as tractor rear wheel slip rate SrLess than or equal to trailing wheel Slip rate threshold value S1, vehicle control device keep and continue before major-minor linkage work state;Such as tractor rear wheel slip rate Sr More than rear wheel slip rate threshold value S1, vehicle control device VCU sends reduction torque command, retarder to buffer controller RCU RCU, which sends instruction, makes respective execution mechanisms reduce braking torque.
If vehicle control device VCU judgment result displays retarder and engine braking are braked together, vehicle control device VCU continues to judge rear wheel slip rate SrWith rear wheel slip rate threshold value S1Size, such as rear wheel slip rate SrLess than or equal to threshold value S1, vehicle control device keep and continue before major-minor linkage work state;Such as rear wheel slip rate SrMore than threshold value S1, vehicle Controller VCU sends releasing engine braking command, and engine braking is released, and refers to while sending reduction moment of torsion to retarder RCU Order, retarder RCU, which sends instruction, makes respective execution mechanisms reduce braking torque.
When the controller detects that major-minor coordinated signals function is cancelled, then major-minor coordinated signals function is exited.

Claims (1)

1. a kind of tractor service brake and auxiliary braking combined brake control method, it is characterised in that comprise the following steps:
A, vehicle control device VCU judge that tractor enters major-minor coordinated signals function, and monitor ought up till now function opening;
B, vehicle control device VCU judge whether current vehicle speed V is more than minimum setting vehicle velocity V min, such as V>Vmin, performs step c, On the contrary then execution step m;
C, vehicle control device VCU are according to current working speed, each wheel each wheel slip rate S of wheel speed calculation vehicle and record;
D, vehicle control device VCU judge whether now service brake participates according to brake pedal displacement transducer, then enter in this way Step e;If not, performing step h;
E, vehicle control device VCU judge tractor rear wheel slip rate SrWhether rear wheel slip rate threshold value S is reached1, as after tractor Wheel slip rate SrLess than or equal to rear wheel slip rate threshold value S1, perform step f;Such as tractor rear wheel slip rate SrMore than rear skidding Shifting rate threshold value S1, perform step g;
F, vehicle control device VCU keep and continue before major-minor linkage work state;
G, vehicle control device VCU send pressurize instruction, and actuating mechanism controls trailing wheel ABS magnetic valves keep existing pressure, and judge Tractor front wheel slip rate SfWhether front wheel slip rate threshold value S is reached2;Such as front wheel slip rate SfLess than or equal to front wheel slip rate Threshold value S2, perform step f;Such as front wheel slip rate SfMore than front wheel slip rate threshold value S2, vehicle control device VCU, which activates ABS, to be prevented Block braking system, is simultaneously emitted by instruction and exits EBA;
H, vehicle control device VCU judge the working condition of retarder and engine braking, and such as only retarder works, and perform step i;Such as retarder and engine braking work simultaneously, perform step k;
I, vehicle control device VCU judge tractor rear wheel slip rate SrWhether rear wheel slip rate threshold value S is reached1;As after tractor Wheel slip rate SrLess than or equal to rear wheel slip rate threshold value S1, perform step f;Such as tractor rear wheel slip rate SrMore than rear skidding Shifting rate threshold value S1, perform step j;
J, vehicle control device VCU send reduction torque command to buffer controller RCU, and retarder RCU, which sends instruction, to be made accordingly Executing agency reduces braking torque;
K, vehicle control device VCU judge tractor rear wheel slip rate SrWhether rear wheel slip rate threshold value S is reached1, as after tractor Wheel slip rate SrLess than or equal to rear wheel slip rate threshold value S1, perform step f;Such as tractor rear wheel slip rate SrMore than rear skidding Shifting rate threshold value S1, perform step l;
L, vehicle control device VCU send releasing engine braking command, and engine braking is released, while being sent to retarder RCU Torque command is reduced, retarder RCU, which sends instruction, makes respective execution mechanisms reduce braking torque;
M, vehicle control device VCU monitor whether major-minor coordinated signals function is cancelled, in this way, perform step n;Such as no, execution step b;
N, exit major-minor coordinated signals function.
CN201710263459.4A 2017-04-21 2017-04-21 A kind of tractor service brake and auxiliary braking combined brake control method Active CN107161127B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710263459.4A CN107161127B (en) 2017-04-21 2017-04-21 A kind of tractor service brake and auxiliary braking combined brake control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710263459.4A CN107161127B (en) 2017-04-21 2017-04-21 A kind of tractor service brake and auxiliary braking combined brake control method

Publications (2)

Publication Number Publication Date
CN107161127A true CN107161127A (en) 2017-09-15
CN107161127B CN107161127B (en) 2019-06-04

Family

ID=59812614

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710263459.4A Active CN107161127B (en) 2017-04-21 2017-04-21 A kind of tractor service brake and auxiliary braking combined brake control method

Country Status (1)

Country Link
CN (1) CN107161127B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110371129A (en) * 2019-06-28 2019-10-25 湖南行必达网联科技有限公司 Main vehicle and trailer braking protection valve consistency judgment method, device and braking system
CN111357252A (en) * 2017-11-10 2020-06-30 Syn重工股份有限公司 Control unit and control system for a vehicle and auxiliary device combination
CN112622856A (en) * 2020-12-25 2021-04-09 中国第一汽车股份有限公司 Regenerative braking method and device for hybrid power assembly rack, vehicle and medium
CN114228718A (en) * 2022-01-18 2022-03-25 潍柴动力股份有限公司 Control method and control system for braking of hybrid power tractor
CN115367653A (en) * 2022-09-15 2022-11-22 中国矿业大学 Mine hoist brake control method considering brake shoe temperature and wear degree

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103101526A (en) * 2011-11-10 2013-05-15 福特全球技术公司 Trailer hold assist during standstill
CN103407449A (en) * 2013-08-23 2013-11-27 吉林大学 Hydraulic auxiliary driving and braking system and control method thereof
CN104828044A (en) * 2014-07-03 2015-08-12 北汽福田汽车股份有限公司 Braking control method and braking control system of vehicle
CN103661334B (en) * 2013-12-20 2015-11-11 北京万得嘉瑞汽车技术有限公司 A kind of control method of vehicle electronics brakig force distribution
CN105313864A (en) * 2015-11-11 2016-02-10 吉林大学 Commercial automobile semitrailer braking force distribution method based on feedback control
CN105818668A (en) * 2016-04-21 2016-08-03 中国第汽车股份有限公司 Hydraulic auxiliary driving system with energy recovery and speed slowing functions and method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103101526A (en) * 2011-11-10 2013-05-15 福特全球技术公司 Trailer hold assist during standstill
CN103407449A (en) * 2013-08-23 2013-11-27 吉林大学 Hydraulic auxiliary driving and braking system and control method thereof
CN103661334B (en) * 2013-12-20 2015-11-11 北京万得嘉瑞汽车技术有限公司 A kind of control method of vehicle electronics brakig force distribution
CN104828044A (en) * 2014-07-03 2015-08-12 北汽福田汽车股份有限公司 Braking control method and braking control system of vehicle
CN105313864A (en) * 2015-11-11 2016-02-10 吉林大学 Commercial automobile semitrailer braking force distribution method based on feedback control
CN105818668A (en) * 2016-04-21 2016-08-03 中国第汽车股份有限公司 Hydraulic auxiliary driving system with energy recovery and speed slowing functions and method thereof

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111357252A (en) * 2017-11-10 2020-06-30 Syn重工股份有限公司 Control unit and control system for a vehicle and auxiliary device combination
CN110371129A (en) * 2019-06-28 2019-10-25 湖南行必达网联科技有限公司 Main vehicle and trailer braking protection valve consistency judgment method, device and braking system
CN112622856A (en) * 2020-12-25 2021-04-09 中国第一汽车股份有限公司 Regenerative braking method and device for hybrid power assembly rack, vehicle and medium
CN112622856B (en) * 2020-12-25 2022-02-08 中国第一汽车股份有限公司 Regenerative braking method and device for hybrid power assembly rack, vehicle and medium
CN114228718A (en) * 2022-01-18 2022-03-25 潍柴动力股份有限公司 Control method and control system for braking of hybrid power tractor
CN114228718B (en) * 2022-01-18 2024-03-19 潍柴动力股份有限公司 Control method and control system for braking of hybrid power tractor
CN115367653A (en) * 2022-09-15 2022-11-22 中国矿业大学 Mine hoist brake control method considering brake shoe temperature and wear degree
CN115367653B (en) * 2022-09-15 2023-03-28 中国矿业大学 Mine hoist brake control method considering brake shoe temperature and wear degree

Also Published As

Publication number Publication date
CN107161127B (en) 2019-06-04

Similar Documents

Publication Publication Date Title
CN107161127B (en) A kind of tractor service brake and auxiliary braking combined brake control method
US11634110B2 (en) Method for adjusting brake pressures of a vehicle, and brake system for carrying out the method
US10029660B2 (en) Method for controlling a brake device in a traction vehicle-trailer combination and brake device controlled according to said method
US20180229705A1 (en) Abs strategy for hybrid brake actuators
JP2011512295A (en) Electronically controlled brake device for tractors
CN110936943A (en) Electronic control brake system of commercial vehicle
CN110936940A (en) Commercial vehicle ESC system based on AEBS relay valve
JP4983270B2 (en) Brake device
US8965655B2 (en) Method for operating a brake-slip regulating arrangement of a brake system of a vehicle
CN2925986Y (en) Stabilized electronic controlling system for medium-heavy automobile
US11059467B2 (en) Braking force control apparatus for vehicle
CN111572518A (en) Hill starting braking device applied to air brake vehicle type and starting method
CN110641431A (en) Electronic braking system of commercial vehicle
EP4206048A1 (en) Control device and control method
CN211710804U (en) Electronic control brake system of commercial vehicle
CN211731350U (en) Commercial vehicle ESC system based on AEBS relay valve
JPH10129434A (en) Slope start controlling device for tractor/trailer
CN113060107A (en) Combined braking control system and method for heavy-load transport vehicle
CN219382456U (en) Vehicle with a vehicle body having a vehicle body support
JP3405387B2 (en) Vehicle braking force control device
US20220324424A1 (en) Brake System for Commercial Vehicle
JP2757256B2 (en) Brake hydraulic pressure control method for hydraulic brake system for automobile
CN117584766A (en) Parking brake control method and system and motor vehicle
CN112208342A (en) Brake system of electric vehicle and electric vehicle
Zheng et al. A Braking Force Distribution Strategy in Integrated Braking System Based on Wear Control and Hitch Force Control

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
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20231224

Address after: No.1, xinhongqi street, automobile economic and Technological Development Zone, Changchun, Jilin Province

Patentee after: China Faw Co.,Ltd.

Patentee after: CHANGCHUN AUTOMOTIVE TEST CENTER Co.,Ltd.

Address before: 130011 2259 Dongfeng Street, Xinxin economic and Technological Development Zone, Changchun, Jilin

Patentee before: China Faw Co.,Ltd.