CN201225937Y - Test instrument for automobile anti-locking brake system performance based on GPS - Google Patents

Test instrument for automobile anti-locking brake system performance based on GPS Download PDF

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Publication number
CN201225937Y
CN201225937Y CNU2007201881327U CN200720188132U CN201225937Y CN 201225937 Y CN201225937 Y CN 201225937Y CN U2007201881327 U CNU2007201881327 U CN U2007201881327U CN 200720188132 U CN200720188132 U CN 200720188132U CN 201225937 Y CN201225937 Y CN 201225937Y
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CN
China
Prior art keywords
interface
gps
main control
control unit
braking system
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.)
Expired - Fee Related
Application number
CNU2007201881327U
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Chinese (zh)
Inventor
张仪栋
颜永福
胡洪
朱红岩
谭龙
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.)
Chongqing Vehicle Test & Research Institute Co ltd
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Chongqing Vehicle Test & Research Institute Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to CNU2007201881327U priority Critical patent/CN201225937Y/en
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Publication of CN201225937Y publication Critical patent/CN201225937Y/en
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Abstract

The utility model discloses a GPS-based automobile anti-lock brake system performance test instrument, which is cooperated with the vehicle that is required to be tested for use, and comprises a wheel-speed sensor, a clamp, a brake trigger, a pedal-effort sensor, a pipeline pressure sensor, a main control unit, an interface unit and a GPS satellite antenna, wherein, the clamp is used for fixing a rotation shaft of the wheel-speed sensor on wheels of the test vehicle and for fixing a shell of the wheel-speed sensor on the side body of the test vehicle; the wheel-speed sensor is connected with the interface unit, and the interface unit is connected with the main control unit; the GPS satellite antenna is arranged on the top part of the test vehicle, and is connected to the main control unit; the brake trigger and the pedal-effort sensor are fixed on the pedal; the brake trigger is connected with the main control unit, and the pedal-effort sensor is connected with the interface unit; the pipeline pressure sensor is fixed on a wheel brake cylinder, and is connected with the force sensor interface of the interface unit. The test instrument realizes the convenient and correct measurement of the running speed of different vehicles on roads, and has the advantages of convenient, stable, reliable, economical and practical application.

Description

Anti-lock braking system in automobiles performance testing apparatus based on GPS
Technical field
The utility model relates to a kind of automotive field, refers to a kind of anti-lock braking system in automobiles performance testing apparatus based on GPS that can be used for automobile especially.
Background technology
Constantly perfect along with the develop rapidly of auto industry and road traffic facility, automobile becomes people's walking-replacing tool gradually, people bring comfortablely, simultaneously easily enjoying automobile, also the active and passive security performance of running car are had higher requirement.Anti-lock braking system in automobiles (Anti-lock Braking System) is called for short ABS, arises at the historic moment under this background just, and it is called as automotive safety most important in history three with air bag, securing band and invents greatly.
When wheel lock up, the side direction adhesion property on ground is very poor, and the side direction adhesion that can provide is very little, and automobile the direction destabilization problems will occur under the effect that is subjected to any small external force, traffic hazard very easily takes place.If the front-wheel locking will make automobile lose steering capability; If whipping or tune (sideslip, sideslip) will appear in rear lock, when braking on moist road surface or ice and snow road, the phenomenon of this direction unstability can be more serious.
The appearance of ABS has fundamentally solved the wheel lock up problem of automobile in braking procedure.It is a kind of mechanical electronic hydraulic/gas integral device, by each instantaneous motion state of sensor senses wheel, and according to its motion state by controller control actuator correspondingly the size of regulating brake braking moment thereby be a closed loop brake system avoiding occurring the locking phenomenon of wheel.ABS can utilize the peak adhesion performance between tire and the road surface, improve the automobile skidding behavior, give full play to brake efficiency, increase the controllability in the Motor Vehicle Braking Procedure simultaneously, thereby the possibility that the minimizing accident takes place is a kind of safety shut-down control system with advantages such as anti-skidding, anti-lockings.It is one of example of electron controls technology successful Application on automobile.
The performance of ABS directly has influence on (containing the matching state with vehicle) traffic safety of vehicle, quality has been installed to be had problem or mates the vehicle of not good ABS with self, when braking crucial moment, the phenomenon of sideslip or poor stop very likely appears, lead to disaster even.Thereby the performance test of ABS seems most important.The performance test of ABS must realize by instrument, because the factor that the ABS Performance Detection relates to is many, the testing tool development difficulty is big, cause the performance of ABS detecting instrument of Chinese commodityization to be in blank, cause domestic ABS manufacturer and vehicle complete vehicle manufacturer to lack necessary ABS Performance Detection means.
The utility model content
The utility model provides a kind of easy to use, stable, reliable, economical and practical anti-lock braking system in automobiles performance testing apparatus based on GPS.
In order to realize the purpose of foregoing invention, the technical scheme that the utility model adopted is:
A kind of anti-lock braking system in automobiles performance testing apparatus based on GPS, cooperate the vehicle that needs test to use, it mainly comprises: wheel speed sensors and anchor clamps, brake trigger, pedal force sensor, line-pressure sensor, main control unit, interface unit, gps satellite antenna.Anchor clamps are used for the rotating shaft of wheel speed sensors is fixed on the wheel of test vehicle, be fixed on the side vehicle body of test vehicle with shell wheel speed sensors, when vehicle operating, the rotating shaft of wheel speed sensors and shell can produce relative rotation, and then produce tach signal; Wheel speed sensors links to each other with interface unit, and the data-interface of interface unit links to each other with the data-interface of main control unit; The gps satellite antenna places the top of test vehicle, and the signal extension line of antenna is introduced vehicle interior by skylight or side-window, is connected to main control unit; Brake trigger and pedal force sensor are fixed on the pedal; Brake trigger links to each other with trigger pip interface on the main control unit, and the pedal force sensor links to each other with the force transducer interface of interface unit; Line-pressure sensor is fixed on the brake wheel cylinder, links to each other with the force transducer interface of interface unit by wire harness.
Described anti-lock braking system in automobiles performance testing apparatus based on GPS, its main control unit, it also is provided with gps satellite antennal interface and GPS dash receiver.
Described anti-lock braking system in automobiles performance testing apparatus based on GPS, an end of its serial cable is linked the com port of computing machine, and the other end links to each other with the serial ports of main control unit.
Described main control unit, it also is provided with USB interface.
Described main control unit, it also is provided with CAN interface and CAN BUS module.
Also be provided with on the described main control unit and can make the out-of-work shift knob of main control unit.
Also be provided with power input interface and power switch key behind the described main control unit.
Described anti-lock braking system in automobiles performance testing apparatus based on GPS, the interface that its interface unit links to each other with wheel speed sensors is provided with dust cover.
Described anti-lock braking system in automobiles performance testing apparatus based on GPS, its interface unit can connect 6 wheel speed sensors and No. 2 force transducers.
Described anti-lock braking system in automobiles performance testing apparatus based on GPS, the front panel of its main control unit is provided with the LED light of power supply, work, satellite and storage mark.
After adopting said structure, it can realize the convenience of running velocity on the various road surfaces, accurately measurement; Solved in the speed of a motor vehicle, the wheel speed signal test process a real-time response difficult problem to external signal; Improved the processing power of instrument to multiple parallel data; Realize the modular design of instrument, improved configuration flexibility; Versatility, portability, the integrity problem of wheel speed sensors sectional fixture have been solved; Compare with commonly using, it can realize easy to use, stable, reliable, economical and practical purpose.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the modular structure figure of main control unit of the present utility model.
Embodiment
In order to make those skilled in the art person understand the present invention program better, the present invention is described in further detail below in conjunction with drawings and embodiments.
As shown in Figure 1, 2, the utility model discloses a kind of anti-lock braking system in automobiles performance testing apparatus based on GPS, cooperate the vehicle that needs test to use, it mainly comprises: wheel speed sensors 1 and anchor clamps 2, brake trigger 3, pedal force sensor 4, main control unit 5, interface unit 6, gps satellite antenna 7 and line-pressure sensor 8, wherein:
Anchor clamps 2 are fixed on the rotating shaft of wheel speed sensors 1 on the wheel of test vehicle, and anchor clamps 2 are fixed on the shell of wheel speed sensors 1 on the side vehicle body of test vehicle; Wheel speed sensors 1 links to each other with interface 61 on the interface unit 6, and the data-interface 62 of interface unit 6 links to each other with the data-interface 51 of main control unit 5; Gps satellite antenna 7 places the top of test vehicle, and the signal extension line of antenna is introduced vehicle interior by skylight or side window, is connected to the satellite interface 52 of main control unit 5; Brake trigger 3 and pedal force sensor 4 are fixed on the pedal; Brake trigger 3 links to each other with trigger pip interface 53 on the main control unit 5, and pedal force sensor 4 links to each other with the force transducer interface 63 of interface unit 6; Line-pressure sensor 8 is fixed on the brake wheel cylinder, links to each other with the force transducer interface 63 of interface unit by wire harness.
Described anti-lock braking system in automobiles performance testing apparatus based on GPS, an end of its serial cable is linked the com port of computing machine, and the other end links to each other with the serial ports 54 of main control unit 5.
Described main control unit, it also is provided with USB interface 55.
During use, main control unit 5 has two kinds of use-patterns: offline mode and online mode.Offline mode is meant that instrument works independently, and test figure is recorded in the USB flash disk by USB interface, obtains test findings by aftertreatment.Online mode is meant that then instrument and the notebook computer that monitoring software is housed use simultaneously, can show test findings so in real time.
Described main control unit 5, it also is provided with CAN interface 56.
CAN: controller local area network CAN (Controller Area Network) is a German Bosch company early 1980s for solving the exchanges data between the numerous controls and testing tool is developed in the Hyundai Motor the distributed control of a kind of effective support or the serial communication network of control in real time.
It is an a kind of multi-master bus system, and in theory, number of unit is unlimited, and actual unit sum is subject to the propagation delay time of bus and the load of bus.The range of application of CAN spreads all over from express network to multi-line network cheaply.The CAN bus has very strong error correcting capability, can use in the environment that anti-strong noise is disturbed, and therefore, is used widely at aspects such as the automotive engine control parts in autoelectrinic field, sensor, antiskid system, signal transmission.The real-time communication of CAN bus is strong, and its message transmission rate can be up to 1Mbps, and each node uses identical bit rate.The communication media of CAN bus can be twisted-pair feeder, concentric cable or light transmitting fiber, and the plug connector by standard can connect easily.
Also be provided with power input interface 57 and power switch key 58 behind the described main control unit 5.
Also be provided with on the described main control unit 5 and can make main control unit 5 out-of-work shift knobs 59.
In the main control unit 5 there be the set module of corresponding each interface: GPS dash receiver module 521, sensor assembly 531, data acquisition module 511, CAN BUS module 561.
The front panel of main control unit 5 is provided with the LED light 581,582,522,551 of power supply, work, satellite and storage mark.
Data acquisition module 511 can be finished the collection of system's wheel speed signal, force signal and trigger pip.
Its performance parameter is as follows:
● analog input
16 tunnel single-ended inputs/8 tunnel difference input
12 bit resolutions, the maximum A/D sampling rate of 100kHz
Range 0～+ 10V ,+/-5V ,+/-10V,
Bipolarity or unipolarity input
1,2,4,8 times of programmable-gains
DMA realizes the high-speed transfer of data
● simulation output
The output of 4 passages
-5～+ 5V ,-10～+ 10V, 0～5V, 0～10V range is optional
Passage is put number separately or 4 passages are put number simultaneously
● digital quantity I/O
UPD71055 (82C55) programmable peripheral interface (PPI)
24 passage TTL/CMOS compatibilities
Draw on the I/O interface or drop-down current-limiting resistance
● counter/timer
Two 82C54 programmable timers contain 6 16, the timer/counter of 10MHz (maximum) altogether, and counter/timer clock source (inner or outside) is optional, but cascade.
The performance parameter of antenna 7 is: SMA-MALE interface, the output of 1575MHz radio frequency, maximum loss 20dB.
Described anti-lock braking system in automobiles performance testing apparatus based on GPS, its interface unit 6 can connect six wheel speed sensors and two-way force transducer.
Described anti-lock braking system in automobiles performance testing apparatus based on GPS, the interface 61 that its interface unit 6 links to each other with wheel speed sensors 1 is provided with the dust cover (not shown).
During use, open power switch device, the bright then power connection of power light, on the contrary then check power lead and plug; About 1 minute of static wait is till the flicker of gps signal lamp.
Start notebook computer, open software--ABS test macro (Ver2.0);
Attainable function comprises:
A) the real-time demonstration of wheel and wheel speed curve
B) demonstration of the speed of a motor vehicle
C) demonstration of time
D) mensuration of braking distance
E) mensuration of the maximum average retardation rate MFDD that fully sends
F) speed of a motor vehicle is dropped to the mensuration of the time of 20km/h by 40km/h
G) speed of a motor vehicle is dropped to the mensuration of the time of 15km/h by 45km/h
(2) instrument self-correcting
Must demarcate before the test;
Wheel speed is demarcated:
Getting on the car and at the uniform velocity travel with 50km/h speed in the test road, clicks " speed of a motor vehicle demarcation " then, clicks " carry out and demarcate ", behind about 5 seconds of the stabilizing speed, click " preservation is withdrawed from ", when fortuitous event occurring or calibrating staggers the time, click " abandoning preserving ", demarcate again then.
Pedal force is demarcated:
Voltage when voltage when needing respectively to 0kg before the test and 100kg is demarcated.
Set speed and time coordinate in advance.
Adopt this testing tool, it can realize the convenience of running velocity on the various road surfaces, accurately measurement; Solved in the speed of a motor vehicle, the wheel speed signal test process a real-time response difficult problem to external signal; Improved the processing power of instrument to multiple parallel data; Realize the modular design of instrument, improved configuration flexibility; Versatility, portability, the integrity problem of wheel speed sensors sectional fixture have been solved
Though described the present invention by embodiment, those of ordinary skills know, the present invention has many distortion and variation and do not break away from spirit of the present invention, wish that appended claim comprises these distortion and variation and do not break away from spirit of the present invention.

Claims (10)

1, a kind of anti-lock braking system in automobiles performance testing apparatus based on GPS, cooperate the vehicle that needs test to use, it is characterized in that: it mainly comprises: wheel speed sensors and anchor clamps, brake trigger, the pedal force sensor, line-pressure sensor, main control unit, interface unit, the gps satellite antenna, anchor clamps are used for the rotating shaft of wheel speed sensors is fixed on the wheel of test vehicle, be fixed on the side vehicle body of test vehicle with shell wheel speed sensors, when vehicle operating, the rotating shaft of wheel speed sensors and shell can produce relative rotation, and then produce tach signal; Wheel speed sensors links to each other with interface unit, and the data-interface of interface unit links to each other with the data-interface of main control unit; The gps satellite antenna places the top of test vehicle, and the signal extension line of antenna is introduced test vehicle inside by skylight or side window, is connected on the main control unit; Brake trigger and pedal force sensor are fixed on the pedal; Brake trigger links to each other with trigger pip interface on the main control unit, and the pedal force sensor links to each other with the force transducer interface of interface unit; Line-pressure sensor is fixed on the brake wheel cylinder, links to each other with the force transducer interface of interface unit by wire harness.
2, the anti-lock braking system in automobiles performance testing apparatus based on GPS as claimed in claim 1 is characterized in that: described main control unit, it also is provided with gps satellite antennal interface and GPS dash receiver.
3, the anti-lock braking system in automobiles performance testing apparatus based on GPS as claimed in claim 1 or 2, it is characterized in that: an end of serial cable is linked the com port of computing machine, and the other end links to each other with the serial ports of main control unit.
4, the anti-lock braking system in automobiles performance testing apparatus based on GPS as claimed in claim 3, it is characterized in that: described main control unit, it also is provided with USB interface.
5, the anti-lock braking system in automobiles performance testing apparatus based on GPS as claimed in claim 4 is characterized in that: described main control unit, it also is provided with CAN interface and CAN BUS module.
6, the anti-lock braking system in automobiles performance testing apparatus based on GPS as claimed in claim 5 is characterized in that: also be provided with on the described main control unit and can make the out-of-work shift knob of main control unit.
7, the anti-lock braking system in automobiles performance testing apparatus based on GPS as claimed in claim 6 is characterized in that: also be provided with power input interface and power switch key behind the described main control unit.
8, the anti-lock braking system in automobiles performance testing apparatus based on GPS as claimed in claim 7, it is characterized in that: the interface that interface unit links to each other with wheel speed sensors is provided with dust cover.
9, the anti-lock braking system in automobiles performance testing apparatus based on GPS as claimed in claim 8, it is characterized in that: interface unit can connect 6 wheel speed sensors and No. 2 force transducers.
10, the anti-lock braking system in automobiles performance testing apparatus based on GPS as claimed in claim 9, it is characterized in that: the front panel of main control unit is provided with the LED light of power supply, work, satellite and storage mark.
CNU2007201881327U 2007-10-31 2007-10-31 Test instrument for automobile anti-locking brake system performance based on GPS Expired - Fee Related CN201225937Y (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101788387A (en) * 2010-03-17 2010-07-28 中国测试技术研究院声学研究所 Dynamic detecting method and device of portable brake performance tester
CN102313650A (en) * 2010-06-29 2012-01-11 重庆车辆检测研究院有限公司 Comprehensive test instrument for motor road performances
CN102466494A (en) * 2010-11-19 2012-05-23 大连德新机电技术工程有限公司 Measurement instrument used for ABS (anti-lock brake system) sensor
CN103204149A (en) * 2013-04-24 2013-07-17 浙江理工大学 Vehicle brake antiskid control system and method based on satellite positioning and speed measurement
CN105910833A (en) * 2016-06-30 2016-08-31 吉林大学 Air-pressure brake process testing system and error correction method
CN111137261A (en) * 2019-12-09 2020-05-12 深圳市优必选科技股份有限公司 Brake control device and brake distance testing method and system
CN116359641A (en) * 2023-03-09 2023-06-30 中汽研汽车检验中心(广州)有限公司 Method for supporting monitoring of trigger action and working state of ABS (anti-lock brake System) function of vehicle

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101788387A (en) * 2010-03-17 2010-07-28 中国测试技术研究院声学研究所 Dynamic detecting method and device of portable brake performance tester
CN101788387B (en) * 2010-03-17 2012-09-05 中国测试技术研究院声学研究所 Dynamic detecting method and device of portable brake performance tester
CN102313650A (en) * 2010-06-29 2012-01-11 重庆车辆检测研究院有限公司 Comprehensive test instrument for motor road performances
CN102466494A (en) * 2010-11-19 2012-05-23 大连德新机电技术工程有限公司 Measurement instrument used for ABS (anti-lock brake system) sensor
CN103204149A (en) * 2013-04-24 2013-07-17 浙江理工大学 Vehicle brake antiskid control system and method based on satellite positioning and speed measurement
CN105910833A (en) * 2016-06-30 2016-08-31 吉林大学 Air-pressure brake process testing system and error correction method
CN105910833B (en) * 2016-06-30 2018-03-06 吉林大学 A kind of air-pressure brake procedural test system and error calibration method
CN111137261A (en) * 2019-12-09 2020-05-12 深圳市优必选科技股份有限公司 Brake control device and brake distance testing method and system
CN116359641A (en) * 2023-03-09 2023-06-30 中汽研汽车检验中心(广州)有限公司 Method for supporting monitoring of trigger action and working state of ABS (anti-lock brake System) function of vehicle
CN116359641B (en) * 2023-03-09 2023-11-14 中汽研汽车检验中心(广州)有限公司 Method for supporting monitoring of trigger action and working state of ABS (anti-lock brake System) function of vehicle

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090422

Termination date: 20091130