CN103926082A - Vehicle brake system test platform and method - Google Patents
Vehicle brake system test platform and method Download PDFInfo
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- CN103926082A CN103926082A CN201410181700.5A CN201410181700A CN103926082A CN 103926082 A CN103926082 A CN 103926082A CN 201410181700 A CN201410181700 A CN 201410181700A CN 103926082 A CN103926082 A CN 103926082A
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Abstract
The invention discloses a vehicle brake system test platform and method. The vehicle brake system test platform comprises a vehicle brake system to be tested, a brake collecting module and a driving simulator, wherein the brake collecting module is connected with the vehicle brake system to be tested and can collect operation information of the vehicle brake system from the vehicle brake system to be tested, and the driving simulator can drive the vehicle brake system and can analyze and evaluate the vehicle brake system according to subjective experience and / or the operation information collected by the brake collecting module. After a braking system for a real vehicle is preliminarily selected, real objects of the braking system can be tested through the vehicle brake system test platform and method, and the braking system of the vehicle can be perfected at low cost as soon as possible.
Description
Technical field
The present invention relates to vehicle development field, particularly, relate to a kind of motor vehicle braking system test platform and method.
Background technology
Along with the development of whole world automotive engineering, new automobile technology continues to bring out, and people are more and more higher to the requirement of the security of vehicle and comfortableness simultaneously.Vehicle braking performances is the important indicator of weighing vehicle quality, and its quality directly has influence on security and the comfortableness of vehicle.The brake system of new model mainly relies on software emulation and real vehicle test on stream at present, at new model during the design, by setting up the software model of brake system, brake parts level and system-level emulation, for the exploitation of motor vehicle braking system provide early stage foundation; In the new car model development later stage, utilize real vehicle to carry out the performance test of brake system, by subjective assessment and objective data, carry out the braking ability of assessment and analysis vehicle, further to improve the brake system of vehicle, guarantee vehicle development quality and realize the design object of vehicle.
But, the emulation that utilizes software model to carry out is difficult to avoid have different with actual conditions, and software emulation cannot give appraiser's the intuitional and experiential thinking, and object test need to carry out after car load completes, now positioning problems or the debugging of parts and replacing all may consume larger human cost and economic expense.
Summary of the invention
The object of this invention is to provide a kind of motor vehicle braking system test platform, this platform can be after each building block of tentatively selecting according to software emulation result for the brake system of real vehicle, brake system to this preliminary selected real vehicle is tested, and can its each building block be debugged and/or be changed according to object test result, to improve the brake system of vehicle.The present invention also provides a kind of motor vehicle braking system method of testing.
To achieve these goals, the invention provides a kind of motor vehicle braking system test platform, this motor vehicle braking system test platform can comprise: motor vehicle braking system to be measured; Braking acquisition module, is connected with described motor vehicle braking system to be measured, can gather from described motor vehicle braking system to be measured the job information of described motor vehicle braking system; And driving simulator, can drive described motor vehicle braking system, and can to described motor vehicle braking system, carry out assessment and analysis according to the described job information of subjectivity experience and/or the collection of described braking acquisition module.
Preferably, this motor vehicle braking system test platform also can comprise main control computer and brake pedal force/shift simulation device, described main control computer can send the signal of expression pedal force/displacement to described brake pedal force/shift simulation device, to drive described motor vehicle braking system to be measured.
Preferably, main control computer can receive the described job information that described braking acquisition module gathers, so that described motor vehicle braking system is carried out to assessment and analysis.
Preferably, described motor vehicle braking system to be measured can comprise following some or all of: the pressure transducer of the pressure transducer of brake pedal, damping force and/or displacement transducer, vacuum booster, vacuum sensor, master cylinder, brake piping, brake piping, ABS/ESP HCU, ABS/ESP ECU, detent, detent.
Preferably, any parts in described motor vehicle braking system to be measured can debugged and/or replacement.
Preferably, described motor vehicle braking system to be measured can be the brake system through the definite real vehicle of emulation.
Preferably, this motor vehicle braking system test platform also can comprise vacuum pump, and described vacuum pump makes described vacuum booster reach predetermined vacuum tightness.
The present invention also provides a kind of motor vehicle braking system method of testing, and described motor vehicle braking system method of testing can comprise: carry out brake operating, to drive motor vehicle braking system to be measured; Gather the job information of described motor vehicle braking system to be measured; And the described working signal of experiencing and/or collecting according to subjectivity carries out assessment and analysis to described motor vehicle braking system.
Wherein, can in driving simulator, to the brake pedal in described motor vehicle braking system to be measured, carry out described brake operating by appraiser, or can by main control computer, to brake pedal force/shift simulation device, be sent the signal that represents pedal force/displacement, make brake pedal force/shift simulation device carry out described brake operating to the brake pedal in described motor vehicle braking system to be measured.
If the assessment result of described motor vehicle braking system does not reach re-set target, adjustable and/or change the parts in described motor vehicle braking system to be measured.
Pass through technique scheme, can be after all parts of selecting brake system according to the simulation results and before car load moulding, the material object of brake system is carried out to performance test and subjective assessment, and can debug easily and/or each parts of brake system according to test result, to improve the brake system of vehicle.In test, also can accurately control as required test condition (for example, accurately controlling power that brake pedal receives and/or the displacement of generation), to obtain more comprehensively test result accurately.Meanwhile, owing in test, the control of ABS/ESP and execution being separated, be more convenient for carrying out the exploitation of ABS/ESP control strategy.
Other features and advantages of the present invention partly in detail are described the embodiment subsequently.
Accompanying drawing explanation
Accompanying drawing is to be used to provide a further understanding of the present invention, and forms a part for instructions, is used from explanation the present invention, but is not construed as limiting the invention with embodiment one below.Identical Reference numeral is for representing identical or similar parts.In the accompanying drawings:
Fig. 1 is according to the logical schematic of the motor vehicle braking system test platform of the preferred embodiments of the invention;
Fig. 2 shows according to the structural representation of the motor vehicle braking system test platform in an embodiment of the invention; And
Fig. 3 is according to the process flow diagram of the motor vehicle braking system method of testing of the preferred embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.Should be understood that, embodiment described herein only, for description and interpretation the present invention, is not limited to the present invention.
The invention provides a kind of motor vehicle braking system test platform, this motor vehicle braking system test platform can comprise: motor vehicle braking system to be measured; Braking acquisition module, is connected with described motor vehicle braking system to be measured, can gather from described motor vehicle braking system to be measured the job information of described motor vehicle braking system; And driving simulator, can drive described motor vehicle braking system, and can to described motor vehicle braking system, carry out assessment and analysis according to the described job information of subjectivity experience and/or the collection of described braking acquisition module.
Fig. 1 is according to the logical schematic of the motor vehicle braking system test platform of the preferred embodiments of the invention.Driving simulator 1 can be the driving cabin of simulation.The brake pedal that in driving simulator 1, appraiser controls is the brake pedal 301 of motor vehicle braking system to be measured 3.Appraiser can carry out as trample the brake operating of brake pedal 301 in driving simulator 1, to drive whole motor vehicle braking system 3 work.Motor vehicle braking system 3 can comprise through emulation, tentatively determine by the whole brake system for real vehicle.Motor vehicle braking system 3 can comprise the pressure transducer 312 etc. of pressure transducer 308, ABS/ESP HCU (being the topworks of ABS/ESP) 309, ABS/ESP ECU310, detent 311 and the detent of brake pedal 301, damping force and/or displacement transducer 302, vacuum booster 304, vacuum sensor 305, master cylinder 306, brake piping 307, brake piping.
In present embodiment, the control of ABS/ESP and execution are divided into the subobject of two tests, i.e. ABS/ESP ECU 310 and ABS/ESP HCU 309, this structure is more conducive to the exploitation of ABS/ESP control strategy.For example, in test, can not change ABS/ESP HCU, only refresh ABS/ESP ECU, to find as early as possible optimum control strategy.Each parts in motor vehicle braking system 3 can be fixed by corresponding jig, are convenient to be removed and install, and make can debug easily and/or replace corresponding parts when assessment result does not comply with one's wishes.Braking harvester 2 each control module from motor vehicle braking system to be measured 3 (for example, the pressure transducer 308 of damping force and/or displacement transducer 302, vacuum sensor 305, brake piping and the pressure transducer 312 of detent etc.) gather the job information (as the pressure of the pressure of the vacuum tightness of the power/displacement of brake pedal, vacuum booster, brake piping, wheel cylinder etc.) of the duty of reflection motor vehicle braking system 3, and this job information can be sent to driving simulator 1.Control system in driving simulator 1 can be assessed motor vehicle braking system 3 mechanical model according to vehicle, and calculates the information such as wheel speed, and this information can be sent to ABS/ESP ECU 310 via braking harvester 2.The control system of driving simulator 1 also can be calculated according to vehicle dynamic model the six degree of freedom parameter of car load, and the athletic posture while driving appraiser to simulate actual driving, so that appraiser experiences and makes reliable subjective assessment true to nature according to subjectivity.Because used brake pedal 301 is also real vehicle parts, therefore, appraiser also can carry out the evaluation of pedal force.Vacuum pump 4 is opened before test starts, and test is closed after finishing, and take and replaces engine to provide predetermined vacuum tightness as vacuum booster 305.
Preferably, in this preferred implementation, also comprise main control computer 5 and brake pedal force/shift simulation device 6.In some test, may need strict restriction to be applied to the power of brake pedal 301 and/or the displacement that brake pedal 301 produces, with the motor vehicle braking system 3 under corresponding trigger condition, assess.Now, main control computer 5 can be configured to the signal that represents corresponding power/displacement to be sent to brake pedal force/shift simulation device 6, brake pedal force/shift simulation device 6 " is trampled " brake pedal 301 according to power/displacement of setting, to drive motor vehicle braking system 3 work.
For other tests, according to the motor vehicle braking system test platform of present embodiment, also can not use driving simulator 1, by main control computer 5 and brake pedal force/shift simulation device 6, carry out and trample operation, and receive the job information of braking harvester 2 collections and according to vehicle dynamic model, motor vehicle braking system 3 carried out assessment and analysis and calculates the information such as wheel speed by main control computer 5.This mode of operation is convenient and can comparatively fast obtain assessment result, but now cannot obtain subjective assessment result.
Fig. 2 shows according to the structural representation of the motor vehicle braking system test platform in an embodiment of the invention.Motor vehicle braking system 3 to be measured is material objects of the preliminary selected brake system for real vehicle.Appraiser can trample brake pedal 301 to drive motor vehicle braking system to be measured 3 work in driving simulator 1.This test platform can be before real vehicle have assembled testing vehicle brake system 3, so this test platform can not comprise the material object of engine, and provides required vacuum by vacuum pump 4 for vacuum booster 303.Braking harvester 2 can be collected the job information of the duty of reflection motor vehicle braking system 3.For example, braking harvester 2 can gather from damping force/displacement transducer 302 power/the displacement information of brake pedal 301, can gather from vacuum sensor 305 the vacuum tightness information of vacuum booster 304, the information of the pressure of reflection brake piping 307 can be gathered from pressure transducer 308, the information of the pressure of the wheel cylinder reflection detent 311 can be gathered from pressure transducer 312.The job information collecting can be sent to driving simulator 1, in driving simulator 1, the information such as wheel speed be assessed and be calculated to control system can to tested motor vehicle braking system 3 according to vehicle dynamic model, and wheel speed information can be forwarded to ABS/ESP ECU 310 via braking harvester 2.And athletic posture when this control system can drive appraiser to simulate actual driving according to this information, so that appraiser carries out subjective assessment to motor vehicle braking system 3.This motor vehicle braking system test platform also can comprise main control computer 5 and brake pedal force/shift simulation device 6, to replace manually accurate controlled power/displacement being applied to brake pedal 301.In not needing the test of subjective assessment, can according to vehicle dynamic model, to motor vehicle braking system 3, carry out assessment and analysis by main control computer 5, and calculate the information such as wheel speed.
The present invention also provides a kind of motor vehicle braking system method of testing, and described motor vehicle braking system method of testing can comprise: carry out brake operating, to drive motor vehicle braking system to be measured; Gather the job information of described motor vehicle braking system to be measured; And the described working signal of experiencing and/or collecting according to subjectivity carries out assessment and analysis to described motor vehicle braking system.
Fig. 3 is according to the process flow diagram of the motor vehicle braking system method of testing of the preferred embodiment of the present invention.In step S1, carry out brake operating, to drive motor vehicle braking system to be measured.Conventionally, by appraiser, in driving simulator, the brake pedal in motor vehicle braking system to be measured is carried out to brake operating.In the situation that accurately controlling, needs are applied to the power of brake pedal and/or the displacement that brake pedal produces, and only carry out simple test and do not need in the situation of subjective assessment, can by main control computer, to brake pedal force/shift simulation device, be sent the signal that represents brake pedal force/displacement, make brake pedal force/shift simulation device carry out brake operating to the brake pedal in motor vehicle braking system to be measured.In step S2, gather the job information of described motor vehicle braking system to be measured.The job information of the braking harvester collection reflection brake system duty that can be connected by each control module in motor vehicle braking system.This job information can be sent to driving simulator, also can be sent to main control computer.In step S3, the described working signal that can experience and/or collect according to subjectivity carries out assessment and analysis to described motor vehicle braking system.Subjective assessment project generally includes vehicle brake pedal feeling evaluation and vehicle braking performances subjective assessment etc.Objective evaluation project generally includes car brakeing apart from assessment, the assessment of car brakeing retarded velocity etc.If need to carry out subjective assessment, driving simulator can receive the job information of collection.Control system in driving simulator can be assessed motor vehicle braking system according to vehicle dynamic model, and calculate the information such as wheel speed and send to ABS/ESP ECU via braking harvester, also can calculate according to vehicle dynamic model the six degree of freedom parameter of car load, and the athletic posture while driving appraiser to simulate actual driving, so that appraiser experiences and makes reliable subjective assessment true to nature according to subjectivity.While not needing subjective assessment if only carry out simple test, can receive the job information gathering by main control computer, and according to vehicle dynamic model, provide the information such as wheel speed and this brake system is evaluated.
If the subjectivity obtaining and/or objective evaluation result do not reach design object, can correspondingly adjust and/(for example change parts in vehicle-mounted brake system to be measured, refresh software wherein or replace with the device of other models), to improve the vehicle-mounted brake system for real vehicle.
Preferably, when testing according to said method, the control of ABS/ESP and execution unit can be separated, its control and execution unit can be upgraded respectively, be more convenient for formulating the control strategy of ABS/ESP, the difficult problem having run into while having overcome the control strategy of developing ABS/ESP in prior art
After the brake system of real vehicle is tentatively determined, can utilize above-mentioned vehicle-mounted brake system test platform and/or method to carry out the test of the brake system of real vehicle, not need to use the engine of real vehicle in test, the required vacuum of vacuum booster can be provided by vacuum pump.
Below describe by reference to the accompanying drawings the preferred embodiment of the present invention in detail; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition each the concrete technical characterictic described in above-mentioned embodiment, in reconcilable situation, can combine by any suitable mode.For fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible array modes.
In addition, between various embodiment of the present invention, also can carry out combination in any, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. a motor vehicle braking system test platform, this motor vehicle braking system test platform comprises:
Motor vehicle braking system to be measured;
Braking acquisition module, is connected with described motor vehicle braking system to be measured, gathers the job information of described motor vehicle braking system from described motor vehicle braking system to be measured; And
Driving simulator, drives described motor vehicle braking system, and according to the described job information of subjectivity experience and/or the collection of described braking acquisition module, described motor vehicle braking system is carried out to assessment and analysis.
2. motor vehicle braking system test platform according to claim 1, wherein, this motor vehicle braking system test platform also comprises main control computer and brake pedal force/shift simulation device, described main control computer sends the signal of expression pedal force/displacement to described brake pedal force/shift simulation device, to drive described motor vehicle braking system to be measured.
3. motor vehicle braking system test platform according to claim 2, described main control computer receives the described job information that described braking acquisition module gathers, so that described motor vehicle braking system is carried out to assessment and analysis.
4. according to the motor vehicle braking system test platform described in arbitrary claim in claims 1 to 3, wherein, described motor vehicle braking system to be measured comprises following some or all of: the pressure transducer of the pressure transducer of brake pedal, damping force and/or displacement transducer, vacuum booster, vacuum sensor, master cylinder, brake piping, brake piping, ABS/ESP HCU, ABS/ESP ECU, detent, detent.
5. motor vehicle braking system test platform according to claim 4, wherein, any parts in described motor vehicle braking system to be measured can be debugged and/or be replaced.
6. motor vehicle braking system test platform according to claim 4, wherein, described motor vehicle braking system to be measured is the brake system for real vehicle of determining through emulation.
7. motor vehicle braking system test platform according to claim 4, this motor vehicle braking system test platform also comprises vacuum pump, described vacuum pump makes described vacuum booster reach predetermined vacuum tightness.
8. a motor vehicle braking system method of testing, described motor vehicle braking system method of testing comprises:
Carry out brake operating, to drive motor vehicle braking system to be measured;
Gather the job information of described motor vehicle braking system to be measured; And
The described working signal of experiencing and/or collecting according to subjectivity carries out assessment and analysis to described motor vehicle braking system.
9. motor vehicle braking system method of testing according to claim 8, wherein by appraiser, in driving simulator, the brake pedal in described motor vehicle braking system to be measured is carried out to described brake operating, or by main control computer, to brake pedal force/shift simulation device, sent the signal that represents pedal force/displacement, make brake pedal force/shift simulation device carry out described brake operating to the brake pedal in described motor vehicle braking system to be measured.
10. the motor vehicle braking system method of testing according to Claim 8 or described in 9, wherein, described motor vehicle braking system method of testing also comprises:
If the assessment result of described motor vehicle braking system does not reach re-set target, debug and/or change the parts in described motor vehicle braking system to be measured.
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| CN201410181700.5A CN103926082A (en) | 2014-04-30 | 2014-04-30 | Vehicle brake system test platform and method |
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| CN201410181700.5A CN103926082A (en) | 2014-04-30 | 2014-04-30 | Vehicle brake system test platform and method |
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| CN103926082A true CN103926082A (en) | 2014-07-16 |
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| CN201410181700.5A Pending CN103926082A (en) | 2014-04-30 | 2014-04-30 | Vehicle brake system test platform and method |
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| WO2016110488A1 (en) * | 2015-01-08 | 2016-07-14 | Avl List Gmbh | Method for operating a driving simulator |
| CN109814404A (en) * | 2019-01-22 | 2019-05-28 | 东风航盛（武汉）汽车控制系统有限公司 | The assemblage on-orbit calibration system and scaling method of entire car controller |
| CN110231178A (en) * | 2019-06-10 | 2019-09-13 | 北京汽车集团越野车有限公司 | A kind of test device of brake pedal feel |
| CN113984402A (en) * | 2021-09-10 | 2022-01-28 | 中国人民解放军63966部队 | System and method for measuring braking deviation of vehicle |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113984402A (en) * | 2021-09-10 | 2022-01-28 | 中国人民解放军63966部队 | System and method for measuring braking deviation of vehicle |
| CN113984402B (en) * | 2021-09-10 | 2023-07-18 | 中国人民解放军63966部队 | System and method for measuring braking deflection of vehicle |
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Application publication date: 20140716 |