CN202119627U - Brake integration detection system platform used for finished automobile road test - Google Patents
Brake integration detection system platform used for finished automobile road test Download PDFInfo
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- CN202119627U CN202119627U CN2011200755963U CN201120075596U CN202119627U CN 202119627 U CN202119627 U CN 202119627U CN 2011200755963 U CN2011200755963 U CN 2011200755963U CN 201120075596 U CN201120075596 U CN 201120075596U CN 202119627 U CN202119627 U CN 202119627U
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Abstract
A brake integration detection system platform used for a finished automobile road test comprises an extensible multichannel data acquisition system which is connected with a plurality of vehicle-mounted sensors arranged on different positions of the automobile used for acquiring automobile road test brake information and is used for receiving acquired information by a plurality of the vehicle-mounted sensors; and a master control PC machine connected with the data acquisition system and processing the acquired information. A plurality of the vehicle-mounted sensors comprise a pedal force transducer, an accelerometer, a wheel speed transducer, a thermocouple, a pipeline pressure transducer and a draw line displacement sensor. The pipeline pressure transducer is connected with the extensible multichannel data acquisition system through a signal amplifier, and is connected with the master control PC machine through a USB interface. An external display of finished automobile speed is also arranged; and the external display of finished automobile speed is connected with the data acquisition system successively through a speed transducer of space filter type and a non-contact tachymeter. According to the utility model, the finished automobile brake performance under an actual pavement condition and a vehicle-mounted environment can be actually reflected.
Description
Technical field
The utility model relates to a kind of braking integrated detection system platform, particularly relates to a kind of actual road test with braking integrated detection system platform.
Background technology
At present; No matter be from authentication purpose, domestic each big Automobile Detection mechanism receives car load manufacturing enterprise to entrust automobile brake perfrmance test to carry out accordance to judge, still from the research and development purpose; Car load manufacturing enterprise matees the automobile chassis brake system; All be to realize,, have very big one-sidedness though this method receives the approval of automobile industry and is used widely through parts laboratory virtual simulation test and the local performance test of testing field vehicle road test.
Receive the restriction of laboratory test condition; Make up the experimental enviroment simulator program in any case and enrich breadboard test procedure; All can not remedy the difference of laboratory virtual emulation test and real road operating mode, can not reflect the braking ability of car load in the real road test fully.This species diversity comprises numerous factors such as paving quality, road gradient, traffic operating mode, climate temperature variation, geographic position, and laboratory CAE computer-aided engineering all exerts an influence to the objectivity and the accuracy of emulation to the precision of the simplification of FEA finite element model pre-treatment, the division trellis-type of selecting for use, grid dividing.
Receive the restriction that actual road test is poor with the checkout equipment integrated level, all kinds of onboard sensors set up factors such as difficult installation; The test of the quantification of local braking ability such as directional stability relied on the limited braking ability parameter of local minority can't reflect the reliability and the stability of braking performance of vehicle actual road test comprehensively when the testing field vehicle road test only was confined to initial speed of braking, braking distance, braking deceleration, brake pedal force, braking.Low owing to relating to many vehicle-mounted checkout equipments of cover and integrated level simultaneously; Cause time synchronized property, dynamic response correlativity poor; Cause measurement result drift to occur, when Data Post, need artificial fuzzy location adjustment, degree of accuracy is poor; And want time of labor, make whole vehicle mounted road testing efficiency greatly reduce.
To the deficiency of existing braking performance test method, need the comprehensive vehicle road test of a kind of dirigibility, maneuverability, accuracy, time synchronized property, dynamic response correlativity and level of integrated system height and physical measuring with braking integrated detection system platform.
Summary of the invention
The utility model technical matters to be solved is; Provide a kind of actual road test of can realizing integrated with the height of all kinds of onboard sensors, data acquisition system (DAS) and auxiliary device; Has pinpoint accuracy and sensitivity; Good maneuverability, time synchronized property and dynamic response correlativity, and measure the specific and comprehensive vehicle road test of braking ability physical quantity with braking integrated detection system platform.
The technical scheme that the utility model adopted is: a kind of vehicle road test is with braking integrated detection system platform; Comprise and be arranged on a plurality of onboard sensors that are used for collection vehicle actual road test braking information on the vehicle diverse location; The data acquisition system (DAS) of a plurality of onboard sensor of the real-time reception that links to each other with a plurality of onboard sensors institute Information Monitoring and the master control PC that links to each other the information of being gathered is handled with data acquisition system (DAS); Described a plurality of onboard sensor includes pedal force sensor, acceleration transducer, vehicle-wheel speed sensor, thermopair, line-pressure sensor and backguy displacement transducer; Wherein, Described line-pressure sensor is to connect data acquisition system (DAS) through signal amplifier; Described data acquisition system (DAS) is for can expand multichannel data acquisition system; And be connected with the master control PC through USB interface, also being provided with car load speed of a motor vehicle external display, described car load speed of a motor vehicle external display passes through spatial filter formula speed pickup and contactless knotmeter successively and links to each other with data acquisition system (DAS).
Described vehicle-wheel speed sensor comprises the near front wheel wheel speed pickup, left rear wheel wheel speed pickup, off-front wheel wheel speed pickup and off hind wheel wheel speed pickup.
Described thermopair includes the thermopair that is buried in drum brake neck hoof friction facing, be buried in drum brake from the thermopair of hoof friction facing be buried in the thermopair of disc brake shoe brake.
Described line-pressure sensor includes H type cloth postpone pipeline/X type and arranges right front left back line-pressure sensor, and pipeline/X type is arranged left front right back line-pressure sensor before the H type layout.
Described H type cloth postpone pipeline/X type arrange right front left back line-pressure sensor and H type arrange before pipeline/X type arrange left front right back line-pressure sensor be through T-valve respectively enclosed package be connected across in the hydraulic braking pipeline.
Described a plurality of onboard sensor all inputs to data acquisition system (DAS) with difference analogue physical quantity form in real time, and described data acquisition system (DAS) is actual braking ability physical index according to the calibration function of each sensor in system platform with analog physical amount parameter correction-compensation.
The vehicle road test of the utility model is with braking integrated detection system platform; Have sharp response, have good time synchronized property and good shock resistance, stable data real-time and the accuracy of dynamic response correlativity, truly reflect the braking performance of vehicle under actual road surface operating mode and the vehicle environment.
Description of drawings
Fig. 1 is the one-piece construction block diagram of the utility model.
Wherein:
1: pedal force sensor 2: acceleration transducer
3: vehicle-wheel speed sensor 4: thermopair
5: line-pressure sensor 6: signal amplifier
7: backguy displacement transducer 8: contactless knotmeter
9: spatial filter formula speed pickup 10: car load speed of a motor vehicle external display
11: off-front wheel wheel speed pickup 12: off hind wheel wheel speed pickup
13: left rear wheel wheel speed pickup 14: the near front wheel wheel speed pickup
15: disc brake shoe brake thermopair 16: drum brake is from hoof friction facing thermopair
17: drum brake neck hoof friction facing thermopair 18: data acquisition system (DAS)
19:H type cloth postpone pipeline/X type is arranged right front left back line-pressure sensor
Pipeline before the 20:H type is arranged/X type is arranged left front right back line-pressure sensor
21: the master control PC
Embodiment
Below in conjunction with embodiment and accompanying drawing the vehicle road test of the utility model is made detailed description with braking integrated detection system platform.
As shown in Figure 1; The vehicle road test of the utility model is with braking integrated detection system platform; Include a plurality of onboard sensors that are used for collection vehicle actual road test braking information on the diverse location that is arranged on vehicle, the data acquisition system (DAS) 18 of a plurality of onboard sensor of the real-time reception that links to each other with a plurality of onboard sensors institute Information Monitoring and the master control PC 21 that links to each other the information of being gathered is handled with data acquisition system (DAS).
Described data acquisition system (DAS) 18 is for can expand multichannel data acquisition system; And be connected with master control PC 20 through USB interface; Also be provided with car load speed of a motor vehicle external display 10, described car load speed of a motor vehicle external display 10 links to each other with data acquisition system (DAS) 18 through spatial filter formula speed pickup 9 and contactless knotmeter 8 successively.
The vehicle road test of the utility model is with braking integrated detection system platform; Utilize a plurality of onboard sensors to obtain braking ability parameters such as acceleration from hoof facing temperature, directly actuated each vehicle wheel speed of car load ABS system, car load actual travel speed, car load driving process of car load disc brake shoe brake temperature, car load drum brake neck hoof facing temperature, car load drum brake, each brake-pipe pressure of car load brake system, brake-pedal travel, brake pedal force in real time, platform is counted the extraction system port number extend to 20 fully to obtain the braking performance of vehicle parameter of importing by all kinds of onboard sensors comprehensively.
The vehicle road test of the utility model is with braking integrated detection system platform; In the vehicle road test process, can receive, monitor, store, reproduce the signal of all kinds of onboard sensor inputs in real time; And all input to extendible hyperchannel platform data acquisition system 18 in real time with difference analogue physical quantity form, described data acquisition system (DAS) 18 is actual braking ability physical index according to the calibration function of each sensor in system platform with analog physical amount parameter correction-compensation.Why selecting the differential analog signal input for use is because more common single-ended input has the advantage of following three aspects:
A, antijamming capability are strong; Because the coupling between two difference cablings is fine, when there is noise in the external world, almost is to be coupled to simultaneously on two lines; And the just difference of two signals that receiving end is concerned about, so extraneous common-mode noise can be offset fully;
B, can effectively suppress EMI,, can cancel out each other extraradial electromagnetic field because the polarity of two signals is opposite, coupling tight more, the electromagnetic energy in the external world that releases is few more;
C, sequential location are accurately; Because the switch change of differential signal is the intersection point that is positioned at two signals, and rely on two threshold voltages of height to judge, thereby receive technology, Influence of Temperature little unlike common single-ended signal; Can reduce the error on the sequential, also be more suitable in the amplitude signal circuit simultaneously.
The physical quantity signal of each passage representative of number extraction system is as shown in table 1 below.
The physical quantity signal of each passage representative of table 1 number extraction system
| Channel position | Physical signalling | | Range | |
| 1 | Off hind wheel neck hoof thermopair | Temperature/℃ | 0～2000 |
|
| 2 | Off hind wheel is from the hoof thermopair | Temperature/℃ | 0～2000℃ | |
| 3 | Left rear wheel neck hoof thermopair | Temperature/℃ | 0～2000℃ | |
| 4 | Left rear wheel is from the hoof thermopair | Temperature/℃ | 0～2000 |
|
| 5 | The near front wheel thermopair | Temperature/℃ | 0～2000 |
|
| 6 | The off-front wheel thermopair | Temperature/℃ | 0～2000 |
|
| 7 | Brake-pedal travel/mm | Voltage/V | -1～ |
|
| 8 | Preceding brake-pipe pressure/MPa | Voltage/V | -0.1～0.9 |
|
| 9 | Rear brake duct road pressure/MPa | Voltage/V | -0.1～0.9 |
|
| 10 | Brake pedal force/N | Voltage/V | 0～ |
|
| 11 | The car load travel speed/(km/h) | Voltage/V | 0～ |
|
| 12 | Car load acceleration/(m/s 2) | Voltage/V | -5～ |
|
| 13 | Off hind wheel wheel speed/(km/h) | Voltage/V | 0～ |
|
| 14 | Left rear wheel wheel speed/(km/h) | Voltage/V | 0～ |
|
| 15 | The near front wheel wheel speed/(km/h) | Voltage/V | 0～ |
|
| 16 | Off-front wheel wheel speed/(km/h) | Voltage/V | 0～10V |
Described a plurality of onboard sensor includes pedal force sensor 1, acceleration transducer 2, vehicle-wheel speed sensor 3, thermopair 4, line-pressure sensor 5 and backguy displacement transducer 7.
Wherein, Described line-pressure sensor 5 is to connect data acquisition system (DAS) 18 through signal amplifier 6; Described line-pressure sensor 5 includes the H type cloth postpone pipeline/X type that links to each other with signal amplifier 6 respectively and arranges right front left back line-pressure sensor 19, and pipeline/X type is arranged left front right back line-pressure sensor 20 before the H type layout.
If brake line arranges that for the H type then brake line pressure real-time measuring system is made up of preceding line-pressure sensor, back line-pressure sensor and signal amplifier; If brake line arranges that for the X type then brake line pressure real-time measuring system is made up of left front right back line-pressure sensor, right front left back line-pressure sensor and signal amplifier.Pressure transducer through T-valve respectively enclosed package be connected across in the brake piping; The brake-pipe pressure simulating signal of output through signal amplifier amplify, conditioning, Filtering Processing; In the forward and backward good consistance of pressure transducer installation, after installing, pressure transducer must carry out pump-down process to two fluid pressure lines respectively for guaranteeing passenger car brake fluid system line pressure.
Described vehicle-wheel speed sensor 3 comprises corresponding respectively the near front wheel wheel speed pickup 14, left rear wheel wheel speed pickup 13, off-front wheel wheel speed pickup 11 and the off hind wheel wheel speed pickup 12 on the near front wheel, left rear wheel, off-front wheel and the off hind wheel that be arranged on, and described the near front wheel wheel speed pickup 14, left rear wheel wheel speed pickup 13, off-front wheel wheel speed pickup 11 and off hind wheel wheel speed pickup 12 are connected data acquisition system (DAS) 18 respectively.Receive each wheel actual speed of a wheel signal in real time through vehicle-wheel speed sensor, obtain the slip rate of each wheel in braking procedure, judge that sliding situation is dragged in the locking of each wheel, objective evaluation car load ABS steering logic with the comparison of car load GES.
Described thermopair 4 includes: be buried in drum brake neck hoof friction facing thermopair 17 on the drum brake neck hoof friction facing, be buried in the drum brake of drum brake from the hoof friction facing from hoof friction facing thermopair 16 be buried in the disc brake shoe brake thermopair 15 on the disc brake shoe brake, described drum brake neck hoof friction facing thermopair 17, drum brake are connected data acquisition system (DAS) 18 from hoof friction facing thermopair 16 respectively with disc brake shoe brake thermopair 15.Bury thermopair by FMVSS135 requirement punching, in burying the thermopair manipulation process, should reduce the dismounting or the adjustment workload of detent as far as possible,, should require to reset according to manufacturer if original adjustment is interfered.Only need simultaneously to bury operation to burying place, hole friction facing; Other positions of liner forbid to be stain by the external world; Bury to must guard against in the process and handle the service brake parking braking system of unifying, prevent detent free clearance adjustment change, guarantee to bury the well behaved consistance of forward and backward brake system.
Form car load speed of a motor vehicle real-time measurement system by LC-1100 spatial filter formula speed pickup, the contactless knotmeter of LC-5200, car load speed of a motor vehicle external display and immobilising device.LC-1100 spatial filter formula speed pickup is measured 1.5～320km/h vehicle speed range based on light reflection principle, and the sensor setting height(from bottom) is 500 ± 100mm, and setting angle is 0 ± 3 ° (torsion angle), 90 ± 3 ° (working direction), 90 ± 10 ° (pitch angle); The LC-5200 system is complete noncontact, need not the vehicle-mounted type vehicle speed measurement system that mark can the high-acruracy survey car speed; Interior installed printer; The highlyest can the corresponding speed of a motor vehicle reach 320km/h, according to braking ability parameters such as GB21670-2008 standard print record initial speed of braking, braking distance, braking decelerations; Speed of a motor vehicle external display is installed in bridge instrumentation dish driver dead ahead within sweep of the eye, is convenient to driver's control stabilization speed of a motor vehicle.
Except that the brake bush temperature can be exported to temperature signal data acquisition system (DAS) directly reads with thermopair in real time; Other sensors all adopt the voltage differential analog input; The more common single-ended input of difference analogue input has antijamming capability and by force, effectively suppresses advantages such as EMI, sequential location be accurate; Simultaneously for reducing even getting rid of the experimental enviroment factor to testing the influence that authenticity and objectivity cause; The pinpoint accuracy of warranty test, good repeatability and consistance must be carried out physics based on the integrated system platform to various kinds of sensors and demarcated, and accomplish the correction-compensation to the analog physical amount.
The vehicle road test of the utility model is with braking integrated detection system platform; Calibration function according to various kinds of sensors; The analog physical amount parameter that collects is modified to the real physical parameter, and the real physical parameter fitting is become all kinds of braking ability curves through the gui tool case in the MATLAB software.Verify comparison through all types of braking ability curves and virtual simulation test, the supporting research and development in chassis of car load manufacturing enterprise, car load brake system coupling and ABS steering logic are carried out assay.
The braking performance of vehicle actual road test uses all kinds of onboard sensor specifications and models and measurement parameter as shown in table 2 below.
All kinds of onboard sensor specifications and models of table 2 and measurement parameter
Adopt HIOKI8430-21 type 10 channel data acquisition systems to receive the difference analogue physical signalling of the sensor input in real time; Except that the brake bush temperature can be exported to temperature signal data acquisition system (DAS) directly reads with thermopair in good time; Other sensors all adopt the voltage differential analog input, and the more common single-ended input of difference analogue input has that antijamming capability by force, effectively suppresses EMI, sequential is located accurate advantage.
Claims (6)
1. a vehicle road test is with braking integrated detection system platform; Comprise and be arranged on a plurality of onboard sensors that are used for collection vehicle actual road test braking information on the vehicle diverse location; The data acquisition system (DAS) (18) of a plurality of onboard sensor of the real-time reception that links to each other with a plurality of onboard sensors institute Information Monitoring and the master control PC (21) that links to each other the information of being gathered is handled with data acquisition system (DAS); It is characterized in that; Described a plurality of onboard sensor includes pedal force sensor (1), acceleration transducer (2), vehicle-wheel speed sensor (3), thermopair (4), line-pressure sensor (5) and backguy displacement transducer (7); Wherein, Described line-pressure sensor (5) is to connect data acquisition system (DAS) (18) through signal amplifier (6), and described data acquisition system (DAS) (18) be for can expand multichannel data acquisition system, and passes through USB interface and be connected with master control PC (21); Also be provided with car load speed of a motor vehicle external display (10), described car load speed of a motor vehicle external display (10) links to each other with data acquisition system (DAS) (18) through spatial filter formula speed pickup (9) and contactless knotmeter (8) successively.
2. vehicle road test according to claim 1 is with braking integrated detection system platform; It is characterized in that described vehicle-wheel speed sensor (3) comprises the near front wheel wheel speed pickup (14), left rear wheel wheel speed pickup (13), off-front wheel wheel speed pickup (11) and off hind wheel wheel speed pickup (12).
3. vehicle road test according to claim 1 is with braking integrated detection system platform; It is characterized in that described thermopair (4) includes the thermopair (17) that is buried in drum brake neck hoof friction facing, be buried in drum brake from the thermopair (16) of hoof friction facing be buried in the thermopair (15) of disc brake shoe brake.
4. vehicle road test according to claim 1 is with braking integrated detection system platform; It is characterized in that; Described line-pressure sensor (5) includes H type cloth postpone pipeline/X type and arranges right front left back line-pressure sensor (19), and pipeline/X type is arranged left front right back line-pressure sensor (20) before the H type layout.
5. vehicle road test according to claim 4 is with braking integrated detection system platform; It is characterized in that, described H type cloth postpone pipeline/X type arrange right front left back line-pressure sensor (19) and H type arrange before pipeline/X type arrange left front right back line-pressure sensor (20) be through T-valve respectively enclosed package be connected across in the hydraulic braking pipeline.
6. vehicle road test according to claim 1 is with braking integrated detection system platform; It is characterized in that; Described a plurality of onboard sensor all inputs to data acquisition system (DAS) (18) with difference analogue physical quantity form in real time, and described data acquisition system (DAS) (18) is actual braking ability physical index according to the calibration function of each sensor in system platform with analog physical amount parameter correction-compensation.
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| CN2011200755963U CN202119627U (en) | 2011-03-21 | 2011-03-21 | Brake integration detection system platform used for finished automobile road test |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103048146A (en) * | 2012-12-21 | 2013-04-17 | 徐州重型机械有限公司 | Multi-axle vehicle brake judder diagnostic device and multi-axle vehicle brake judder diagnostic method |
| CN103048145A (en) * | 2012-12-18 | 2013-04-17 | 徐州重型机械有限公司 | Brake judder diagnosis device and brake judder diagnosis method |
| CN104833518A (en) * | 2014-12-19 | 2015-08-12 | 北汽福田汽车股份有限公司 | Vehicle brake test device and method |
| CN106840709A (en) * | 2017-03-27 | 2017-06-13 | 宁波吉利汽车研究开发有限公司 | It is a kind of for vehicle subjective assessment and the test-bed of static test |
| CN106898058A (en) * | 2017-02-21 | 2017-06-27 | 成都雅骏新能源汽车科技股份有限公司 | A kind of data acquisition application apparatus of hydraulic braking system for automobile |
| CN108844755A (en) * | 2018-08-20 | 2018-11-20 | 中国汽车技术研究中心有限公司 | One kind being used for new energy vehicle Brake energy recovery test device and method |
| CN109342860A (en) * | 2018-12-04 | 2019-02-15 | 交通运输部公路科学研究所 | Full size circuit dynamic response data acquisition device |
| CN111220392A (en) * | 2020-01-19 | 2020-06-02 | 中汽研汽车检验中心(宁波)有限公司 | Test system and test method for automobile brake feeling test |
| CN113092131A (en) * | 2021-03-31 | 2021-07-09 | 泰明顿摩擦材料技术(上海)有限公司 | Brake system rack test system and method based on whole vehicle brake working condition |
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- 2011-03-21 CN CN2011200755963U patent/CN202119627U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103048145A (en) * | 2012-12-18 | 2013-04-17 | 徐州重型机械有限公司 | Brake judder diagnosis device and brake judder diagnosis method |
| CN103048145B (en) * | 2012-12-18 | 2015-08-19 | 徐州重型机械有限公司 | Brake judder diagnostic device and brake judder diagnostic method |
| CN103048146A (en) * | 2012-12-21 | 2013-04-17 | 徐州重型机械有限公司 | Multi-axle vehicle brake judder diagnostic device and multi-axle vehicle brake judder diagnostic method |
| CN103048146B (en) * | 2012-12-21 | 2015-04-22 | 徐州重型机械有限公司 | Multi-axle vehicle brake judder diagnostic device and multi-axle vehicle brake judder diagnostic method |
| CN104833518A (en) * | 2014-12-19 | 2015-08-12 | 北汽福田汽车股份有限公司 | Vehicle brake test device and method |
| CN106898058A (en) * | 2017-02-21 | 2017-06-27 | 成都雅骏新能源汽车科技股份有限公司 | A kind of data acquisition application apparatus of hydraulic braking system for automobile |
| CN106840709A (en) * | 2017-03-27 | 2017-06-13 | 宁波吉利汽车研究开发有限公司 | It is a kind of for vehicle subjective assessment and the test-bed of static test |
| CN108844755A (en) * | 2018-08-20 | 2018-11-20 | 中国汽车技术研究中心有限公司 | One kind being used for new energy vehicle Brake energy recovery test device and method |
| CN108844755B (en) * | 2018-08-20 | 2024-02-13 | 中国汽车技术研究中心有限公司 | Brake energy recovery testing device and method for new energy vehicle |
| CN109342860A (en) * | 2018-12-04 | 2019-02-15 | 交通运输部公路科学研究所 | Full size circuit dynamic response data acquisition device |
| CN109342860B (en) * | 2018-12-04 | 2023-11-21 | 交通运输部公路科学研究所 | Full-scale loop dynamic response data acquisition device |
| CN111220392A (en) * | 2020-01-19 | 2020-06-02 | 中汽研汽车检验中心(宁波)有限公司 | Test system and test method for automobile brake feeling test |
| CN113092131A (en) * | 2021-03-31 | 2021-07-09 | 泰明顿摩擦材料技术(上海)有限公司 | Brake system rack test system and method based on whole vehicle brake working condition |
| CN113092131B (en) * | 2021-03-31 | 2023-10-27 | 泰明顿摩擦材料技术(上海)有限公司 | Brake system bench test system and method based on whole vehicle brake working condition |
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Granted publication date: 20120118 Termination date: 20130321 |