CN104527627A - Anti-lock system and method for conducting pipeline failure test on anti-lock system - Google Patents
Anti-lock system and method for conducting pipeline failure test on anti-lock system Download PDFInfo
- Publication number
- CN104527627A CN104527627A CN201410835544.XA CN201410835544A CN104527627A CN 104527627 A CN104527627 A CN 104527627A CN 201410835544 A CN201410835544 A CN 201410835544A CN 104527627 A CN104527627 A CN 104527627A
- Authority
- CN
- China
- Prior art keywords
- pipeline
- wheel cylinder
- normally closed
- closed valve
- pump
- 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.)
- Pending
Links
Classifications
-
- 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
- B60T13/10—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 fluid assistance, drive, or release
- B60T13/24—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 fluid assistance, drive, or release the fluid being gaseous
- B60T13/46—Vacuum systems
- B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Regulating Braking Force (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention discloses an anti-lock system and a method for conducting a pipeline failure test on the anti-lock system. Under the linked function of an ABS normally-open valve (2), a normally-closed valve (3), an energy accumulator (6) and a pump (7), oil of a pipeline cannot pass through a wheel cylinder (8), and therefore the braking pipeline failure is achieved. Under the premise that the original pipeline is not damaged, labor force and work hours are reduced to the maximum, unsafe factors caused by pipeline demounting and mounting are avoided, and the pipeline failure test is conducted.
Description
Technical field
The invention belongs to automobile pipeline technical field, particularly relate to a kind of antiblock device and carry out the test method of pipeline inefficacy.
Background technology
Performance requriements after service brake inefficacy and failure test occupy critical role in ECE brake legislation system, are also the Focal point and difficult points of automobile brake test.Brake piping lost efficacy---be applicable to all brake systems.For reaching emergency brake performance, all vehicles all must adopt double loop structure.Energy supplying pipeline is also adopted to the force aid system/power system of double loop/discrete loop structure, transfer conduit occurs to lose efficacy and will the energy storage of its upstream be caused to completely lose, and consequence lost efficacy even more serious than energy supplying pipeline.Therefore, pipeline lost efficacy and the pressure durations of a wherein pipeline is zero.When carrying out pipeline failure test, the pressure durations of pipeline is only needed to be zero.When carrying out pipeline failure test, only lost efficacy, the whole energy then getting rid of inefficacy pipe line downstream accumulator also can reach similar effect.At present, a partial failure of simulated driving brake system, makes the line pressure in inefficacy loop in whole process of the test, remain zero and mainly takes following several practice:
A) by " inefficacy valve ", valve control loop and fluid reservoir loop is opened (ISO, VCA method) mutually;
B) in a loop, install shutoff valve makes drg and master cylinder part disconnect.Should unclamp at driving braking force control system and at least close shutoff valve (ISO method) after 1s.
C) Exhaust screw directly unclamping a wherein pipeline clamp place makes itself and air open-minded.
Realizing in process of the present invention, contriver finds that prior art at least exists following problem: the technology lost efficacy for existing pipeline, and its complicated operation needs external pipeline and valve, not only destroys original pipeline, and dismounting also can consume a large amount of manpower and man-hour.Braking liquid can be caused to leak for directly pulling out the method that wherein pipeline makes itself and air open, considering from experimental safe, should avoid using as far as possible.
Summary of the invention
Under technical matters to be solved by this invention is to provide a kind of prerequisite not destroying original pipeline, reduce manpower and man-hour to greatest extent, and the safety hazard avoided because pipeline dismounting causes, carries out the antiblock device of pipeline failure test and carries out the test method of pipeline inefficacy.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of antiblock device, comprise electronic control unit ECU and actuating unit HCU, HCU comprises normally open valve, normally closed valve, energy storage and pump, and unify brake pedal, vacuum booster, master cylinder and wheel cylinder of anti-lock braking system constitutes whole brake system;
After the braking oil pressure that brake pedal produces is amplified by vacuum booster, the braking liquid with pressure is sent into master cylinder;
Described normally open valve, normally closed valve, energy storage and pump are connected successively by pipeline and are connected to a formation hydraulic circuit on master cylinder, and described normally open valve, normally closed valve and pump are all controlled by ECU;
Described wheel cylinder is for driving wheel braking mechanism, and wheel cylinder is connected on the pipeline between normally open valve and normally closed valve by pipeline.
Have four branch roads, every bar branch road includes a normally open valve, a normally closed valve, energy storage, a pump and a wheel cylinder, and four wheel cylinders are respectively left front wheel cylinder, right back wheel cylinder, left back wheel cylinder and right front wheel cylinder.
Two-way branch road shares an energy storage and a pump.
The branch road of left front wheel cylinder and right back wheel cylinder shares an energy storage and a pump, and the branch road of left back wheel cylinder and right front wheel cylinder shares an energy storage and a pump.
Above-mentioned antiblock device carries out a test method for pipeline inefficacy, comprises the steps:
1) determine to need to carry out the pipeline of testing that lost efficacy;
2) wheel cylinder corresponding with treating inefficacy pipeline is found out;
3) by the ECU transmission service brake pipeline failure testing order of communication bus to ABS system, ABS system response test command controls normally open valve and the normally closed valve of the branch road at above-mentioned wheel cylinder place, make normally open valve no power keep path, open after normally closed valve energising;
4) oil in master cylinder is not direct by being temporarily stored in energy storage after normally open valve and normally closed valve respectively by wheel cylinder, completes brake piping crash simulation experiment.
After the 4th step, after normally closed valve energising certain hour, worked by ECU control pump, oil is drawn back in master cylinder.
Normally closed valve current"on"time is 15s.
In step 3, normally open valve and normally closed valve is controlled by ECU.
A technical scheme tool in technique scheme has the following advantages or beneficial effect, based on ABS system, do not need to carry out any pipeline transformation of the way, only need to send brake piping disable command by bus communication (K/CAN) to ABS assembly, vehicle simulating brake pipeline failure phenomenon when braking can be enable, eliminate the interference of external factor to test, add the reliability of test; Method simple and fast, the simulation that can realize pipeline was fast and accurately lost efficacy, cost-saving and energy.Considerably increase the safety of test.And this function accessible site is in ABS system.
Accompanying drawing explanation
The fundamental diagram that during braking that Fig. 1 is the antiblock device that provides in the embodiment of the present invention, the near front wheel and off hind wheel pipeline lost efficacy;
Fig. 2 is oil is extracted into master cylinder by Fig. 1 pump fundamental diagram from energy storage;
Fig. 3 is the pressurized state fundamental diagram that antiblock device normally works;
Fig. 4 is the packing state fundamental diagram that antiblock device normally works;
Fig. 5 is the pressure release operation schematic diagram that antiblock device normally works;
Fig. 6 is the FB(flow block) of the test method that Fig. 1 pipeline lost efficacy;
Mark in above-mentioned figure is: 1, master cylinder, and 2, normally open valve, 3, normally closed valve, 4, vacuum booster, 5, brake pedal, 6, energy storage, 7, pump, 8, wheel cylinder.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
A kind of antiblock device, comprise electronic control unit ECU (Vehicle Electronic Control Unit) and ABS (anti-skid brake system) actuating unit HCU, HCU comprises normally open valve 2, normally closed valve 3, energy storage 6 and pump 7, and unify brake pedal 5, vacuum booster 4, master cylinder 1 and wheel cylinder 8 of anti-lock braking system constitutes whole brake system;
Chaufeur pin is stepped on brake pedal 5 and is produced braking oil pressure, and after being amplified by vacuum booster 4, the braking liquid with pressure flows into master cylinder 1.
Normally open valve 2, normally closed valve 3, energy storage 6 and pump 7 are connected successively by pipeline and are connected to a formation hydraulic circuit on master cylinder 1, and normally open valve 2, normally closed valve 3 and pump 7 are all controlled by ECU;
Wheel cylinder 8 is for driving wheel braking mechanism, and wheel cylinder 8 is connected on the pipeline between normally open valve 2 and normally closed valve 3 by pipeline.
Have four branch roads, every bar branch road includes a normally open valve 2, normally closed valve 3, energy storage 6, pump 7 and a wheel cylinder 8, four wheel cylinders 8 are respectively left front wheel cylinder, right back wheel cylinder, left back wheel cylinder and right front wheel cylinder.
Two-way branch road shares an energy storage 6 and a pump 7, forms X and arranges, right front and right back, right front and left back.
The branch road of left front wheel cylinder and right back wheel cylinder shares an energy storage 6 and a pump 7, and the branch road of left back wheel cylinder and right front wheel cylinder shares an energy storage 6 and a pump 7.
Above-mentioned antiblock device carries out a test method for pipeline inefficacy, comprises the steps:
1) determine to need to carry out the pipeline of testing that lost efficacy;
2) wheel cylinder 8 corresponding with treating inefficacy pipeline is found out;
3) by the ECU transmission service brake pipeline failure testing order of communication bus to ABS system, ABS system response test command controls normally open valve 2 and the normally closed valve 3 of the branch road at above-mentioned wheel cylinder 8 place, make normally open valve 2 no power keep path, normally closed valve 3 is opened after being energized;
4) oil in master cylinder 1 is not direct by being temporarily stored in energy storage 6 after normally open valve 2 and normally closed valve 3 respectively by wheel cylinder 8, completes brake piping crash simulation experiment, as shown in Figure 1.
5), after normally closed valve 3 is energized certain hour, current"on"time is 15s.Worked by ECU control pump 7, oil is drawn back in master cylinder 1, as shown in Figure 2.
Interlock effect based on ABS normally open valve 2, normally closed valve 3 and energy storage 6 and pump 7 makes the oil of a pipeline not by wheel cylinder 8 thus the brake piping realized lost efficacy.ABS assembly is made up of ECU, HCU, all respectively has 1 normally open valve 2 (NO), 1 normally closed valve 3 (NC) in HCU between master cylinder 1 to 4 wheel cylinders 8.Master cylinder 1X type controls brake wheel cylinder 8, and every diagonal line wheel cylinder 8 all can get back to master cylinder 1 by same low pressure accumulator 6 (LPA), forms a hydraulic circuit.
When stepping on brake pedal 5, ABS pressure process is as Fig. 3, and brake solution enters brake wheel cylinder 8 by normally open valve 2, clamp is clamped and produces braking.ABS pressure maintaining period is as Fig. 4, and normally open valve 2 is energized and closes, and normally closed valve 3 still cuts out, and keeps braking force constant; ABS pressure leak process is as Fig. 5, and normally open valve 2 is energized to closing and cuts off oil circuit, and normally closed valve 3 energising is opened, and oil is temporarily stored into low pressure accumulator LPA from wheel cylinder 8, and then pump 7 works and oil drawn back master cylinder 1.
Yao Shi mono-road pipeline lost efficacy, such as, simulate left front off hind wheel pipeline and lost efficacy, and this road pipeline can be made under the prerequisite not by this pipeline wheel cylinder 8, to make it directly to low pressure accumulator LPA1 from master cylinder 1 oil out, then was energized by pump 7 oil is withdrawn into master cylinder 1.Under overall wire sheaves (K line/CAN line) diagnostic mode, the ECU of ABS is said the word, open after normally closed valve NC1, NC2 on its pipeline that will lose efficacy are energized, normally open valve NO1, NO2 no power keeps path, when stepping on brake pedal 5 like this, oil in this pipeline is not direct by being temporarily stored in LPA1 after normally closed valve NC1, NC2 respectively by wheel cylinder FL, RR, as shown in Figure 1; When normally closed valve NC1, NC2 energising certain hour (overall wire sheaves communication makes normally closed valve 3NC1 energising 15s vehicle stop), the signal that sends instructions again makes pump 7 work (to feel in order to the middle pedal that makes to advance can not produce top feel again, simulate pipeline completely to lose efficacy), oil is drawn back master cylinder 1, as shown in Figure 2, thus reach the feasibility of practical operation, as shown in Fig. 6 diagram of circuit.Because the control of abs valve is accurate, speed of response is fast, thus can realize the inefficacy effect to wherein a certain bar pipeline accurately, rapidly.FL, RR, RL, FR refer to left front, right back, left back, right front wheel cylinder respectively.
After adopting above-mentioned scheme, based on ABS system, do not need to carry out any pipeline transformation of the way, only need to send brake piping disable command by bus communication K/CAN to ABS assembly, vehicle simulating brake pipeline failure phenomenon when braking can be enable, eliminate the interference of external factor to test, add the reliability of test; Method simple and fast, the simulation that can realize pipeline was fast and accurately lost efficacy, cost-saving and energy.Considerably increase the safety of test.And this function accessible site is in ABS system.Integrate ABS function and brake piping failure testing, while increasing function, do not increase cost; Communication by means of only bus and ECU can realize service brake pipeline failure testing and ABS function switches, convenient and swift.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (8)
1. an antiblock device, it is characterized in that, comprise electronic control unit ECU and actuating unit HCU, HCU comprises normally open valve (2), normally closed valve (3), energy storage (6) and pump (7), and unify brake pedal (5), vacuum booster (4), master cylinder (1) and wheel cylinder (8) of anti-lock braking system constitutes whole brake system;
After the braking oil pressure that brake pedal (5) produces is amplified by vacuum booster (4), the braking liquid with pressure is sent into master cylinder (1);
Described normally open valve (2), normally closed valve (3), energy storage (6) and pump (7) are connected successively by pipeline and are connected to the upper formation hydraulic circuit of master cylinder (1), and described normally open valve (2), normally closed valve (3) and pump (7) are all controlled by ECU;
Described wheel cylinder (8) is for driving wheel braking mechanism, and wheel cylinder (8) is connected on the pipeline between normally open valve (2) and normally closed valve (3) by pipeline.
2. antiblock device as claimed in claim 1, it is characterized in that, have four branch roads, every bar branch road includes a normally open valve (2), a normally closed valve (3), energy storage (6), a pump (7) and a wheel cylinder (8), and four wheel cylinders (8) are respectively left front wheel cylinder, right back wheel cylinder, left back wheel cylinder and right front wheel cylinder.
3. antiblock device as claimed in claim 2, is characterized in that, two-way branch road shares an energy storage (6) and a pump (7).
4. antiblock device as claimed in claim 3, it is characterized in that, the branch road of left front wheel cylinder and right back wheel cylinder shares an energy storage (6) and a pump (7), and the branch road of left back wheel cylinder and right front wheel cylinder shares an energy storage (6) and a pump (7).
5. the antiblock device as described in as arbitrary in claim 1-4 carries out a test method for pipeline inefficacy, it is characterized in that, comprises the steps:
1) determine to need to carry out the pipeline of testing that lost efficacy;
2) wheel cylinder (8) corresponding with treating inefficacy pipeline is found out;
3) by the ECU transmission service brake pipeline failure testing order of communication bus to ABS system, ABS system response test command controls normally open valve (2) and the normally closed valve (3) of the branch road at above-mentioned wheel cylinder (8) place, make normally open valve (2) no power keep path, open after normally closed valve (3) energising;
4) oil in master cylinder (1) is not directly temporarily stored in energy storage (6) by normally open valve (2) and normally closed valve (3) by wheel cylinder (8) respectively afterwards, realize brake piping to lose efficacy, now can carry out brake piping failure testing.
6. antiblock device as claimed in claim 5 carries out the test method of pipeline inefficacy, it is characterized in that, after the 4th step, after normally closed valve (3) energising certain hour, by ECU control pump (7) work, oil is drawn back in master cylinder (1).
7. antiblock device as claimed in claim 6 carries out the test method of pipeline inefficacy, and it is characterized in that, normally closed valve (3) current"on"time is 15s.
8. antiblock device as according to claim 5 in it carries out the test method of pipeline inefficacy, in step 3, controls normally open valve (2) and normally closed valve (3) by ECU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410835544.XA CN104527627A (en) | 2014-12-29 | 2014-12-29 | Anti-lock system and method for conducting pipeline failure test on anti-lock system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410835544.XA CN104527627A (en) | 2014-12-29 | 2014-12-29 | Anti-lock system and method for conducting pipeline failure test on anti-lock system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104527627A true CN104527627A (en) | 2015-04-22 |
Family
ID=52843343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410835544.XA Pending CN104527627A (en) | 2014-12-29 | 2014-12-29 | Anti-lock system and method for conducting pipeline failure test on anti-lock system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104527627A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070180A (en) * | 2015-07-15 | 2015-11-18 | 无锡商业职业技术学院 | Automobile hydraulic brake system experimental device |
| CN110779696A (en) * | 2019-10-17 | 2020-02-11 | 浙江亚太机电股份有限公司 | Integrated brake system detection table and test method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996002409A1 (en) * | 1994-07-20 | 1996-02-01 | Itt Automotive Europe Gmbh | Process for operating an anti-lock motor vehicle braking system |
| CN1355423A (en) * | 2001-12-13 | 2002-06-26 | 万向钱潮股份有限公司 | Method for testing utilization rate of ground adhesion coefficient for anti-block braking system of car |
| US20050236891A1 (en) * | 2004-04-23 | 2005-10-27 | Masato Terasaka | Anti-lock brake control device and brake control device |
| CN2837814Y (en) * | 2005-10-20 | 2006-11-15 | 比亚迪股份有限公司 | ABS performance tester |
| US20090095551A1 (en) * | 2007-10-12 | 2009-04-16 | Mototsugu Sawada | Anti-skid control device and automatic brake control device |
| CN103359094A (en) * | 2012-03-30 | 2013-10-23 | 株式会社爱德克斯 | Vehicle brake device |
| CN103661330A (en) * | 2012-09-24 | 2014-03-26 | 日立汽车系统株式会社 | Brake control apparatus |
| CN204415373U (en) * | 2014-12-29 | 2015-06-24 | 芜湖伯特利汽车安全系统有限公司 | A kind of antiblock device |
-
2014
- 2014-12-29 CN CN201410835544.XA patent/CN104527627A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996002409A1 (en) * | 1994-07-20 | 1996-02-01 | Itt Automotive Europe Gmbh | Process for operating an anti-lock motor vehicle braking system |
| CN1355423A (en) * | 2001-12-13 | 2002-06-26 | 万向钱潮股份有限公司 | Method for testing utilization rate of ground adhesion coefficient for anti-block braking system of car |
| US20050236891A1 (en) * | 2004-04-23 | 2005-10-27 | Masato Terasaka | Anti-lock brake control device and brake control device |
| CN2837814Y (en) * | 2005-10-20 | 2006-11-15 | 比亚迪股份有限公司 | ABS performance tester |
| US20090095551A1 (en) * | 2007-10-12 | 2009-04-16 | Mototsugu Sawada | Anti-skid control device and automatic brake control device |
| CN103359094A (en) * | 2012-03-30 | 2013-10-23 | 株式会社爱德克斯 | Vehicle brake device |
| CN103661330A (en) * | 2012-09-24 | 2014-03-26 | 日立汽车系统株式会社 | Brake control apparatus |
| CN204415373U (en) * | 2014-12-29 | 2015-06-24 | 芜湖伯特利汽车安全系统有限公司 | A kind of antiblock device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070180A (en) * | 2015-07-15 | 2015-11-18 | 无锡商业职业技术学院 | Automobile hydraulic brake system experimental device |
| CN110779696A (en) * | 2019-10-17 | 2020-02-11 | 浙江亚太机电股份有限公司 | Integrated brake system detection table and test method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105667477B (en) | A kind of all-wheel steering electric wheel truck line traffic control hydraulic parking braking system | |
| CN102834307B (en) | Motor vehicle braking systems | |
| CN204567653U (en) | A kind of EHB | |
| CN205154812U (en) | Two -way ferry vehicle lock bridge hydraulic system that traveles | |
| CN109305151B (en) | Redundant EPB auxiliary control's drive-by-wire hydraulic braking system | |
| CN103386958B (en) | Rear axle braking device, axle braking system, method and vehicle | |
| CN104071141A (en) | A braking system for a vehicle and a method for operation of the braking system | |
| CN108791260B (en) | Wire control hydraulic braking system utilizing EPB auxiliary redundancy | |
| CN104949842A (en) | Vehicle hybrid brake system test development testbed | |
| CN105329229A (en) | Car and braking system of car | |
| CN104477038A (en) | Regenerative braking system and method for electric vehicle | |
| CN108407789B (en) | Automatic emergency air pressure braking device | |
| CN204415373U (en) | A kind of antiblock device | |
| CN104527625A (en) | ABS and method for conducting driving brake pipeline failure test through ABS | |
| CN104527627A (en) | Anti-lock system and method for conducting pipeline failure test on anti-lock system | |
| CN205524208U (en) | Electronic round of hydraulic pressure of drive -by -wire for car parking braking system of all wheel steering | |
| CN209535034U (en) | The line traffic control brake fluid system of redundancy EPB auxiliary control | |
| CN104458284A (en) | Automobile braking system based on ESC system and testing method of automobile braking system | |
| CN101054085B (en) | Braking anti-lock system with running braking function | |
| CN205168478U (en) | Vapour -pressure type service braking system all with hill start miscellaneous function | |
| CN103496361B (en) | Unmanned braking control device and method and automobile | |
| CN108116386B (en) | Vehicle, electronic control unit and control method thereof | |
| CN204415367U (en) | A kind of ABS system | |
| CN216331989U (en) | Hydraulic-electric composite braking system for engineering vehicle | |
| CN105235672A (en) | Air-pressure type service braking system having hill-starting assisting function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 241009 Wuhu economic and Technological Development Zone, Anhui, No. 19 Taishan Road Applicant after: WUHU BOTELI AUTOMOBILE SAFETY SYSTEM CO., LTD. Address before: 241009 Wuhu economic and Technological Development Zone, Anhui, No. 19 Taishan Road Applicant before: Wuhu Bethel Automotive Secure Systems Ltd. |
|
| COR | Change of bibliographic data | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150422 |
|
| RJ01 | Rejection of invention patent application after publication |