CN108107876B - Commercial vehicle electric brake system hardware-in-the-loop test platform and test method based on TTC580 controller - Google Patents

Commercial vehicle electric brake system hardware-in-the-loop test platform and test method based on TTC580 controller Download PDF

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Publication number
CN108107876B
CN108107876B CN201810082175.XA CN201810082175A CN108107876B CN 108107876 B CN108107876 B CN 108107876B CN 201810082175 A CN201810082175 A CN 201810082175A CN 108107876 B CN108107876 B CN 108107876B
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China
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controller
ttc580
commercial vehicle
gas
brake system
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CN201810082175.XA
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CN108107876A (en
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李静
刘鹏
石求军
户亚威
冯酉南
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Jilin University
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Jilin University
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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B23/00Testing or monitoring of control systems or parts thereof
    • G05B23/02Electric testing or monitoring
    • G05B23/0205Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
    • G05B23/0218Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults

Abstract

The present invention provides commercial vehicle electric brake system hardware-in-the-loop test platforms and test method based on TTC580 controller, the testing stand is made of gas source component, pneumatic test stand component, controller and host, and the testing stand acquires four brake chamber pressure signals and gas pedal opening amount signal by the analog acquisition passage of TTC580 controller;By the PWM output channel of TTC580 controller forward bridge single channel module, preceding bridge two ABS solenoid valves and rear axle two-channel modules output drive signal;Brake pedal opening amount signal and steering wheel angle signal are acquired by the digital data acquisition channel of TTC580 controller;It is connected between the host and TTC580 controller by Ethernet, realizes data transmission.Present invention accomplishes the requirements that commercial vehicle electric brake system is quickly developed, and reduce the cost of hardware-in―the-loop test.

Description

Commercial vehicle electric brake system hardware-in-the-loop test platform based on TTC580 controller and Test method
Technical field
The invention belongs to automotive electronics braking system hardware-in―the-loop test technical fields, specifically, the present invention relates to bases In the commercial vehicle electric brake system hardware-in-the-loop test platform and test method of TTC580 controller.
Background technique
With the development of economy with the needs of traffic, the occupation rate of market of commercial vehicle is gradually increasing, but due to commercial vehicle Manned cargo-carrying amount is larger, and the travel safety of commercial vehicle is particularly important.In order to improve the safety of commercial vehicle, external vehicle Manufacturer such as WABCO company, BOSCH company, Knorr company propose commercial vehicle electric brake system (Electronically Braking System) concept, commercial vehicle electric brake system controls gradually development from the ABS of the first generation as current and includes The complex control system of the control functions such as ABS control, ASR control, ESP control, it greatly improves the traffic safeties of commercial vehicle Property.Since China is still at an early stage for commercial vehicle electric brake system, commercial vehicle electric brake system core technology is still It so rests in external whole-car firm's hand, the accurate quick research and development of commercial vehicle electric brake system are particularly significant for China.
Hardware-in-the-loop test platform has in the research and development of commercial vehicle electric brake system to play a very important role, and is testing It does not need to carry out vehicle road test in journey, and commercial vehicle electric brake system control strategy can be carried out real-time, quickly Verifying and evaluation can greatly save research and development cost and shorten product development cycle, meet commercial vehicle electric brake system The needs accurately quickly researched and developed.But the current country is directed to the hardware-in-the-loop test of commercial vehicle electric brake system research and development and verifying Taiwan investment material is less, is unable to satisfy and quickly develops to commercial vehicle electric brake system and the demand of hardware-in―the-loop test;And mainstream On hardware-in-the-loop test platform generally use the companies such as external Dspace company, NI company production controller platform, hardware Cost is higher with software cost, increases scientific research cost.
Summary of the invention
For above-mentioned defect existing in the prior art, the present invention provides the commercial vehicle electronics based on TTC580 controller Braking system hardware-in-the-loop test platform and test method to meet the requirement that commercial vehicle electric brake system is quickly developed, and drop The cost of low hardware-in―the-loop test.In conjunction with Figure of description, technical scheme is as follows:
Commercial vehicle electric brake system hardware-in-the-loop test platform based on TTC580 controller is tried by gas source component A, air pressure It tests platform component B, controller and host 31 to form, the controller is TTC580 controller 30;
The pneumatic test stand component B is by gas pedal 8, steering wheel 10, the preceding bridge controlled by preceding bridge single channel module 16 Control for brake gas circuit, the rear axle control for brake gas circuit controlled by rear axle two-channel modules 17, and respectively with preceding bridge single channel mould Block 16 and the brake pedal unit 11 of 17 gas circuit of rear axle two-channel modules control connection form;
The TTC580 controller 30 passes through PWM output channel two ABS with preceding bridge single channel module 16, preceding bridge respectively Solenoid valve and the connection of 17 signal of rear axle two-channel modules;
The TTC580 controller 30 is four corresponding with four brake chambers respectively by analog acquisition passage port Pressure sensor and the connection of 7 signal of accelerator pedal displacement sensor;
The TTC580 controller 30 by digital data acquisition access port respectively in brake pedal unit 11 integrate Brake pedal aperture displacement sensor is connected with 9 signal of steering wheel angle sensor;
It is connected between the host 31 and TTC580 controller 30 by Ethernet, realizes data transmission.
The gas source component A is made of air compressor 1 and drier 2, the gas outlet of the air compressor 1 and drying The air inlet of device 2 is connected by pneumatic circuit, and the gas outlet of drier 2 is empty to the dry compression of pneumatic test stand component B output Gas.
In the pneumatic test stand component B, the air inlet of four-loop protection valve 3 is connect with gas source component A, and four circuits are protected One gas outlet of shield valve 3 is connected with the air inlet of the second gas receiver 4, the air inlet of another gas outlet and the first gas receiver 5 It is connected;
The gas outlet of first gas receiver 5 is stepped on preceding bridge single channel module air inlet 161 and braking respectively by the first threeway 6 The first air inlet of plate assembly 111 is connected, the first gas outlet of brake pedal unit 113 and preceding 163 phase of bridge single channel module control mouth Even, two gas outlets of preceding bridge single channel module pass through the ABS solenoid valve connection two sides Qian Qiao brake chamber, Qian Qiao two sides system respectively Take offence room air inlet at pressure sensor is installed respectively;
The gas outlet of second gas receiver 4 by the second threeway 12 respectively with the second air inlet of brake pedal unit 112 and the Three threeways 13 connection, the other both ends of third threeway 13 are connected with two air inlets of rear axle two-channel modules respectively, and braking is stepped on The second gas outlet of plate assembly 114 is connected with rear axle two-channel modules control mouth 174, two gas outlets point of rear axle two-channel modules Not Lian Jie rear axle two sides brake chamber, pressure sensor is installed respectively at the air inlet of rear axle two sides brake chamber.
It is equipped with inside the host 31 and controls plan for establishing commercial vehicle whole vehicle model and commercial vehicle electric brake system Software slightly.
The commercial vehicle electric brake system control strategy is ABS control strategy, ESC control strategy or ASR control strategy.
The test method of commercial vehicle electric brake system hardware-in-the-loop test platform based on TTC580 controller, the test Method is specific as follows:
Firstly, the commercial vehicle whole vehicle model established in host 31 and commercial vehicle electric brake system to be tested are controlled plan It slightly downloads in TTC580 controller 30;
Then, testing crew manipulation direction disk 10, gas pedal 8 and brake pedal unit 11 carry out driver's input; TTC580 controller 30 is collected by digital data acquisition channel and analog acquisition passage acquisition steering wheel angle sensor 9 Steering wheel angle signal, the collected accelerator opening amount signal of accelerator pedal displacement sensor 7, brake pedal unit 11 are collected Brake pedal opening amount signal and brake pedal switch signal, and it is transmitted to the vehicle mould of 30 internal operation of TTC580 controller Type, it is ensured that the normal operation of whole vehicle model;Commercial vehicle electric brake system control strategy in TTC580 controller 30 is with vehicle Model transmits the parameter identified needed for the control strategy come and is collected by digital data acquisition channel with analog acquisition passage Four collected real-time pressure signals of the corresponding pressure sensor of wheel of driver's input signal and automobile be Basis calculates front and back wheel at this time by commercial vehicle electric brake system control-Strategy analysis and needs to control the target pressure reached Force value, and PWM drive signal is converted by the PWM output channel of TTC580 controller 30 by this target pressure value, export to Preceding bridge single channel module 16, rear axle two-channel modules 17 and the ABS solenoid valve of automobile front axle two sides carry out automobile front and back wheel Reasonable pressure is adjusted, to reach closed-loop control purpose;
Finally, testing crew can check the real-time parameter curve of testing stand by host 31, thus to control strategy into Row evaluation.
Compared with prior art, the beneficial effects of the present invention are:
1, the commercial vehicle electric brake system hardware-in-the-loop test platform of the present invention based on TTC580 controller uses TTControl company production TTC580 controller to commercial vehicle electric brake system control strategy carry out hardware-in―the-loop test with Research and development, hardware-in-the-loop test platform structure is simple, and cost is relatively low, and simulation accuracy is higher, and real-time is preferable.
2. the commercial vehicle electric brake system hardware-in-the-loop test platform of the present invention based on TTC580 controller can be used In in commercial vehicle electric brake system ABS control, ASR control and ESP control etc. control strategies exploitation and verifying, be applicable in Range is wider.
3. the commercial vehicle electric brake system hardware-in-the-loop test platform operation side of the present invention based on TTC580 controller Just, carry out testing that required personnel are less, the development cycle of commercial vehicle electric brake system can be greatly shortened, save research and development at This.
4. air pressure in the commercial vehicle electric brake system hardware-in-the-loop test platform of the present invention based on TTC580 controller Testing stand front-rear axle valve group is based on the newest third generation electric brake system of existing market, can be realized to third generation deceleration of electrons The exploitation of control strategy hardware in loop and test of system, compensate for the domestic sky for being directed to third generation electric brake system testing stand It is white.
5. data in the commercial vehicle electric brake system hardware-in-the-loop test platform of the present invention based on TTC580 controller Acquisition and valve group driving are all made of itself port of TTC580 controller, and connection wiring harness is less, and structure is simple, and integrated level is high, can To greatly reduce testing stand own cost.
Detailed description of the invention
Fig. 1 is the group of the commercial vehicle electric brake system hardware-in-the-loop test platform of the present invention based on TTC580 controller At structural schematic diagram;
Fig. 2 is the letter of the commercial vehicle electric brake system hardware-in-the-loop test platform of the present invention based on TTC580 controller Number conveying flow figure;
Fig. 3 is the commercial vehicle electric brake system hardware-in-the-loop test platform and examination of the present invention based on TTC580 controller The design principle logic chart of proved recipe method;
Fig. 4 be the commercial vehicle electric brake system hardware-in-the-loop test platform of the present invention based on TTC580 controller in, The air-path interface schematic diagram of preceding bridge single channel module;
Fig. 5 be the commercial vehicle electric brake system hardware-in-the-loop test platform of the present invention based on TTC580 controller in, The air-path interface schematic diagram of rear axle two-channel modules;
Fig. 6 be the commercial vehicle electric brake system hardware-in-the-loop test platform of the present invention based on TTC580 controller in, The air-path interface schematic diagram of brake pedal unit;
In figure:
A. gas source component, B. pneumatic test stand component;
1. air compressor, 2. driers, 3. four-loop protection valves, 4. second gas receivers,
5. the first gas receiver, 6. first threeways, 7. accelerator pedal displacement sensors, 8. gas pedals,
9. steering wheel angle sensor, 10. steering wheels, 11. brake pedal units, 12. second threeways,
13. third threeway, 14. the oneth ABS solenoid valves, 15. the 2nd ABS solenoid valves, bridge single channel module before 16.,
17. rear axle two-channel modules, 18. off-front wheel brakes, brake chamber before 19. right sides, 20. first pressure sensors,
21. near front wheel brake, 22. left front brake chambers, 23. second pressure sensors, 24. off hind wheel brakes,
25. brake chamber behind the right side, 26. third pressure sensors, 27. left rear wheel brakes, 28. left back brake chambers,
29. the 4th pressure sensor, 30.TTC580 controller, 31. hosts;
111. the first air inlet of brake pedal unit, 112. the second air inlets of brake pedal unit,
113. the first gas outlet of brake pedal unit, 114. the second gas outlets of brake pedal unit,
Bridge single channel module air inlet before 161., before 162. the first gas outlet of bridge single channel module,
Bridge single channel module control mouth before 163., before 164. the second gas outlet of bridge single channel module,
171. the first gas outlets of rear axle two-channel modules, 172. the first air inlets of rear axle two-channel modules,
173. the second gas outlets of rear axle two-channel modules, 174. rear axle two-channel modules control mouths,
175. rear axle two-channel modules third gas outlets, 176. the second air inlets of rear axle two-channel modules,
The 4th gas outlet of 177. rear axle two-channel modules.
Specific embodiment
For the technical solution and its brought beneficial effect that the present invention is further explained, in conjunction with Figure of description, this hair Bright specific embodiment is as follows:
As shown in Figure 1, the present invention provides the commercial vehicle electric brake system hardware in loop examinations based on TTC580 controller Platform is tested, the testing stand is made of gas source component A, pneumatic test stand component B, TTC580 controller 30 and host 31.
The gas source component A is made of air compressor 1 and drier 2.Wherein, the air compressor 1 selects piston Formula air compressor can stablize externally output 1Mpa compressed air;The gas outlet of the air compressor 1 and drier 2 Air inlet by pneumatic circuit be connected, the gas outlet of drier 2 exports dry compressed air outward.
The pneumatic test stand component B includes four-loop protection valve 3, the second gas receiver 4, the first gas receiver 5, the first threeway 6, accelerator pedal displacement sensor 7, gas pedal 8, steering wheel angle sensor 9, steering wheel 10, brake pedal unit 11, Two threeways 12, third threeway 13, the first ABS solenoid valve 14, the 2nd ABS solenoid valve 15, preceding bridge single channel module 16, rear axle bilateral Brake chamber 19, first pressure sensor 20, near front wheel brake 21, left front system before road module 17, off-front wheel brake 18, the right side Take offence room 22, second pressure sensor 23, off hind wheel brake 24, it is right after brake chamber 25, third pressure sensor 26, left back Take turns brake 27, left back brake chamber 28 and the 4th pressure sensor 29.
Accelerator pedal displacement sensor 7 is housed, the effect of accelerator pedal displacement sensor 7 is inside the gas pedal 8 The pedal displacement of real-time monitoring gas pedal 8, and externally export accelerator open degree displacement signal;Pedal displacement sensor 7 is externally defeated Accelerator open degree displacement signal out is analog signal.
The lower part of the steering wheel 10 is equipped with steering wheel angle sensor 9, and the effect of steering wheel angle sensor 9 is real-time The corner of monitoring direction disk 10, and externally outbound course disk angular signal;The steering wheel that steering wheel angle sensor 9 externally exports Angular signal is digital PWM signal.
First threeway 6 is equipped with left end, right end and the interface of lower end three;Second threeway 12 is equipped with left end, right end With the interface of upper end three;The third threeway 13 is equipped with upper end, lower end and the interface of left end three.
The brake pedal unit 11 selects the brake pedal unit in the third generation EBS system of WABCO company production, institute That states brake pedal unit 11 has been internally integrated brake pedal switch and brake pedal aperture displacement sensor, can be right respectively Outer output brake pedal switch signal and brake pedal aperture pwm signal.As shown in fig. 6, the brake pedal unit 11 has Two air inlets are the first air inlet of brake pedal unit 111 and the second air inlet of brake pedal unit 112, brake pedal respectively The tool of assembly 11 is the second gas outlet of the first gas outlet of brake pedal unit 113 and brake pedal unit respectively there are two gas outlet 114。
The preceding bridge single channel module 16 selects 4801067000 models in the third generation EBS system of WABCO company production Preceding bridge single channel module.As shown in figure 4, it is preceding bridge single channel module that the preceding bridge single channel module 16, which has an air inlet, Air inlet 161;There are two gas outlets, respectively 162 He of preceding the first gas outlet of bridge single channel module for the preceding tool of bridge single channel module 16 The second gas outlet of preceding bridge single channel module 164;It is preceding bridge list that preceding bridge single channel module 16, which also has an ambient pressure control mouth, Channel module control mouth 163.
The rear axle two-channel modules 17 select 4801062000 models in the third generation EBS system of WABCO company production Rear axle two-channel modules.As shown in figure 5, there are two air inlets, respectively rear axle bilateral for the tool of rear axle two-channel modules 17 The first air inlet of road module 172 and the second air inlet of rear axle two-channel modules 176;There are four outlets for the tool of rear axle two-channel modules 17 Mouth, respectively the first gas outlet of rear axle two-channel modules 171, the second gas outlet of rear axle two-channel modules 173, rear axle binary channels mould The 4th gas outlet 177 of block third gas outlet 175 and rear axle two-channel modules;Rear axle two-channel modules 17 also have an extraneous pressure Power control mouth is rear axle two-channel modules control mouth 174;Wherein, the second gas outlet of rear axle two-channel modules 173 and rear axle bilateral Road module third gas outlet 175 is blocked by plug, not external output pressure.
Air circuit connection relationship in the pneumatic test stand component B is as follows:
The air inlet of the four-loop protection valve 3 is connected with the gas outlet of drier 2 by pneumatic circuit;Four loop protections There are four gas outlets for the tool of valve 3, and two of them gas outlet blocks, in other two gas outlet, a gas outlet and the second gas receiver 4 Air inlet by pneumatic circuit be connected, another gas outlet is connected with the air inlet of the first gas receiver 5 by pneumatic circuit.
The gas outlet of first gas receiver 5 is connected with the right end of the first threeway 6 by pneumatic circuit, the second gas receiver 4 Gas outlet be connected with the upper end of the second threeway 12 with by pneumatic circuit.
The first air inlet of brake pedal unit 111 is connected with the lower end of the first threeway 6 by pneumatic circuit, and brake pedal is total Be connected with the left end of the second threeway 12 by pneumatic circuit at the second air inlet 112, the first gas outlet of brake pedal unit 113 with The preceding bridge single channel module control mouth 163 of preceding bridge single channel module 16 is connected by pneumatic circuit, and brake pedal unit second goes out Port 114 is connected with the rear axle two-channel modules control mouth 174 of rear axle two-channel modules 17 by pneumatic circuit.
The preceding bridge single channel module air inlet 161 is connected with the left end of the first threeway 6 by pneumatic circuit, preceding bridge single-pass The first gas outlet of road module 162 is connected with the air inlet of the first ABS solenoid valve 14 by pneumatic circuit, preceding bridge single channel module Two gas outlets 164 are connected with the air inlet of the 2nd ABS solenoid valve 15 by pneumatic circuit.
The gas outlet of the first ABS solenoid valve 14 is connected with the air inlet of brake chamber 19 before the right side by pneumatic circuit, It is described it is right before brake chamber 19 be connected with off-front wheel brake 18 by bolt, enable the compressed air before the right side in brake chamber 19 It is enough that off-front wheel brake 18 is carried out to build pressure;The off-front wheel brake 18 is commercial vehicle disk brake, is braked in off-front wheel Steel plate is accompanied between caliper in device 18, the effect of the steel plate is to guarantee that off-front wheel brake 18 overcomes and steel plate after building pressure Between gap after may be implemented to build pressure;The first pressure sensor 20, can at the air inlet of brake chamber 19 before the right side With gas pressure of the real-time monitoring before right in brake chamber 19.
The gas outlet of the 2nd ABS solenoid valve 15 is connected with the air inlet of left front brake chamber 22 by pneumatic circuit, The left front brake chamber 22 is connected near front wheel brake 21 by bolt, and the compressed air in left front brake chamber 22 is enable It is enough that near front wheel brake 21 is carried out to build pressure;Near front wheel brake 21 is commercial vehicle disk brake, near front wheel brake 21 Steel plate is accompanied between interior caliper, the effect of the steel plate is to guarantee that near front wheel brake 21 overcomes between steel plate after building pressure It may be implemented to build pressure behind gap;The second pressure sensor 23 is located at the air inlet of left front brake chamber 22, can be real When monitor gas pressure in left front brake chamber 22.
The left end of the third threeway 13 is connected with the right end of the second threeway 12 by pneumatic circuit;Third threeway 13 it is upper End is connected with first air inlet of rear axle two-channel modules 172 by pneumatic circuit, the lower end of third threeway 13 and Rear Double The second air inlet of channel module 176 is connected by pneumatic circuit;
First gas outlet of rear axle two-channel modules 171 and the air inlet of brake chamber 25 behind the right side pass through pneumatic circuit phase Even, it is described it is right after brake chamber 25 be connected with off hind wheel brake 24 by bolt, make the compression sky behind the right side in brake chamber 25 Gas can carry out off hind wheel brake 24 to build pressure;Off hind wheel brake 24 is commercial vehicle disk brake, is braked in off hind wheel Steel plate is accompanied between caliper in device 24, the effect of the steel plate is to guarantee that off hind wheel brake 24 overcomes and steel plate after building pressure Between gap after may be implemented to build pressure;The third pressure sensor 26, can at the air inlet of brake chamber 25 behind the right side With gas pressure of the real-time monitoring after right in brake chamber 25.
The 4th gas outlet 177 of rear axle two-channel modules is connected with the air inlet of left back brake chamber 28 by pneumatic circuit, The left back brake chamber 28 is connected with left rear wheel brake 27 by bolt, and the compressed air in left back brake chamber 28 is enable It is enough that left rear wheel brake 27 is carried out to build pressure;Left rear wheel brake 27 is commercial vehicle disk brake, in left rear wheel brake 27 Steel plate is accompanied between interior caliper, the effect of the steel plate is to guarantee that left rear wheel brake 27 overcomes between steel plate after building pressure It may be implemented to build pressure behind gap;4th pressure sensor 29 is located at the air inlet of left back brake chamber 28, can be real When monitor gas pressure in left back brake chamber 28.
The TTC580 controller 30 selects the TTC580 model controller of TTControl company production, which is A 32 8-digit microcontrollers based on the modern times, have 36 road PWM output channels, output frequency 0.1Hz-10kHx;And have There are the I/O channel of 96 tunnel flexibly configurables and the Ethernet interface for Fast Software downloading.The TTC580 control Device 30 configures five analog acquisitions for preceding 5 channels of the wherein I/O channel of 96 tunnel flexibly configurables by software Channel;TTC580 controller 30 by software by the I/O channel of 96 tunnel flexibly configurables the 6th channel and the 7th Channel is configured to two digital quantity acquisition channels.
First via PWM output channel in the TTC580 controller 30 and the second road PWM output channel respectively with preceding bridge Pressure charging valve driving end inside single channel module 16 is connected with pressure reducing valve driving end by electric wire;In TC580 controller 30 Three road PWM output channels drive end respectively with the 4th road PWM output channel and are subtracted with the pressure charging valve inside the first ABS solenoid valve 14 Pressure valve drives end to be connected by electric wire;The 5th road PWM output channel and the 6th road PWM output channel in TC580 controller 30 End and pressure reducing valve driving end is driven to be connected by electric wire with the pressure charging valve inside the 2nd ABS solenoid valve 15 respectively;TC580 controller The 7th road PWM output channel in 30 and eight-path PWM output channel respectively with the increasing inside 17 left side of rear axle single channel module Pressure valve drives end to be connected with pressure reducing valve driving end by electric wire;The 9th road PWM output channel and the tenth in TC580 controller 30 Road PWM output channel drives end and pressure reducing valve driving end to pass through electricity with the pressure charging valve inside 17 right side of rear axle single channel module respectively Line is connected.Electric wire connection is as shown in phantom in Figure 1.
The signal of first analog acquisition passage port and the first baroceptor 20 in the TTC580 controller 30 Output end is connected by electric wire;Second analog acquisition passage port and the second baroceptor 23 in TTC580 controller 30 Signal output end pass through electric wire connect;Third analog acquisition passage port and third air pressure transmission in TTC580 controller 30 The signal output end of sensor 26 is connected by electric wire;4th analog acquisition passage port and the 4th in TTC580 controller 30 The signal output end of baroceptor 29 is connected by electric wire;5th analog acquisition passage port in TTC580 controller 30 It is connect with the signal output end of accelerator pedal displacement sensor 7 by electric wire.First digit in the TTC580 controller 30 Amount acquisition channel port is connected with the pwm signal output end of brake pedal unit 11 by electric wire;In TTC580 controller 30 Two-digit amount acquisition channel port is connected with the pwm signal output end of steering wheel angle sensor 9 by electric wire.Electric wire connection As shown in phantom in Figure 1.
The host 31 be general personal computer, inside CodeSys software, the work of CodeSys software are installed With being to establish commercial vehicle 7DOF whole vehicle model and commercial vehicle electric brake system control strategy in the software, facilitate 7DOF is whole Vehicle model and commercial vehicle electric brake system control strategy code are downloaded into TTC580 controller 30;
The commercial vehicle electric brake system control strategy is ABS control strategy, ESC control strategy or ASR control strategy Etc. commercial vehicles electric brake system control strategy.
It is connected between the host 31 and TTC580 controller 30 by ethernet netting twine, is realized under data transmission and code It carries.
According to the composed structure of the above-mentioned commercial vehicle electric brake system hardware-in-the-loop test platform based on TTC580 controller, The present invention also provides the commercial vehicle electric brake system hardware-in-the-loop test methods based on TTC580 controller, as shown in Fig. 2, Test process is specific as follows:
Firstly, according to the specific of the aforementioned commercial vehicle electric brake system hardware-in-the-loop test platform based on TTC580 controller Pneumatic circuit connection, electric wire connection in testing stand are connected completion with Ethernet connection structure by composed structure;By in host 31 CodeSys software commercial vehicle electric brake system control strategy to be tested and commercial vehicle 7DOF whole vehicle model code are downloaded Into TTC580 controller 30;
Then, then testing crew manipulation direction disk 10, gas pedal 8 and the progress driver of brake pedal unit 11 are defeated Enter;Steering wheel angle sensor 9 collects the corner of steering wheel 10, and externally outbound course disk corner pwm signal;Gas pedal Displacement sensor 7 collects the displacement of gas pedal 8, and externally exports accelerator opening amount signal;In 11 inside of brake pedal unit The brake pedal aperture displacement sensor and brake pedal switch set can externally export brake pedal aperture pwm signal and braking Pedal switch signal;TTC580 controller 30 the digital data acquisition channel and analog acquisition passage good by itself software configuration Collect above-mentioned steering wheel angle pwm signal, accelerator opening amount signal, brake pedal aperture pwm signal and brake pedal switch After signal, above-mentioned signal is supplied to the 7DOF whole vehicle model of 30 internal operation of TTC580 controller, it is ensured that whole vehicle model is just Often operation;The control that commercial vehicle electric brake system control strategy in TTC580 controller 30 is come with the transmission of 7DOF whole vehicle model The good digital data acquisition channel of the parameter and itself software configuration identified needed for tactful and analog acquisition passage institute are collected Driver's input signal and the collected real-time pressure signal of four corresponding pressure sensors of wheel of automobile are base Plinth, analysis meter calculates front and back wheel at this time and needs to control the target pressure value reached, and this target pressure value is passed through TTC580 The PWM output channel of controller 30 itself is converted into the PWM drive signal of certain duty ratio, exports to preceding bridge single channel module 16, rear axle two-channel modules 17 and the corresponding two ABS solenoid valves of two wheel of automobile front axle, bridge single channel module 16 before making, Rear axle two-channel modules 17 and solenoid valve generation movement, carry out reasonable pressure adjusting to automobile front and back wheel, to reach closed-loop control Purpose;
Finally, testing crew can be by the real-time parameter curve of 31 real time inspection testing stand of host, thus to control plan It is slightly evaluated in time, is finally completed electric brake system hardware-in-the-loop test.
As shown in figure 3, the commercial vehicle electric brake system hardware-in-the-loop test of the present invention based on TTC580 controller The design principle of platform and test method is as follows:
It is opened by 11 input direction disk corner of experimenter's manipulation direction disk 10, gas pedal 8 and brake pedal unit, throttle Drivers' input signals such as degree, brake pedal aperture, while road pavement information is inputted, and 30 software of TTC580 controller is passed through Configured digital data acquisition channel and analog acquisition passage are acquired driver's input signal, TTC580 controller 30 Commercial vehicle 7DOF whole vehicle model is loaded under inside, which completes the simulation to vehicle, to obtain commercial vehicle EBS electronic brake system The required vehicle parameter identified of the control strategies such as wheel speed w, speed v needed for control strategy of uniting, control strategy obtain after calculating To the goal pressure Pdf of application required for commercial vehicle front-wheel, and by the PWM output channel of TTC580 controller 30 itself by its It is converted into driving signal, preceding bridge single channel module 16 and two ABS solenoid valves before driving in bridge make vehicle front generate braking Torque Mbf is fed back to 7DOF whole vehicle model, realizes the control to vehicle front-wheel;Control strategy obtains quotient after calculating The goal pressure Pdr of the application required for back wheels of vehicle, and converted by the PWM output channel of TTC580 controller 30 itself For driving signal, the rear axle two-channel modules 17 in rear axle are driven, so that automobile back wheel is generated braking moment Mbr, is fed back to Whole vehicle model realizes the control to vehicle rear-wheel.The hardware-in-the-loop test mistake to commercial vehicle electric brake system is completed with this Journey.

Claims (6)

1. the commercial vehicle electric brake system hardware-in-the-loop test platform based on TTC580 controller is tried by gas source component (A), air pressure Test platform component (B), controller and host (31) composition, it is characterised in that:
The controller is TTC580 controller (30);
The pneumatic test stand component (B) by gas pedal (8), steering wheel (10), by preceding bridge single channel module (16) control Preceding bridge control for brake gas circuit, by rear axle two-channel modules (17) control rear axle control for brake gas circuit, and respectively with preceding bridge list Brake pedal unit (11) composition of channel module (16) and the control connection of rear axle two-channel modules (17) gas circuit;
The TTC580 controller (30) passes through PWM output channel two ABS with preceding bridge single channel module (16), preceding bridge respectively Solenoid valve and the connection of rear axle two-channel modules (17) signal;
The TTC580 controller (30) is pressed for four corresponding with four brake chambers respectively by analog acquisition passage port Force snesor and the connection of accelerator pedal displacement sensor (7) signal;
The TTC580 controller (30) by digital data acquisition access port respectively in brake pedal unit (11) integrate Brake pedal aperture displacement sensor is connected with steering wheel angle sensor (9) signal;
It is connected between the host (31) and TTC580 controller (30) by Ethernet, realizes data transmission.
2. the commercial vehicle electric brake system hardware-in-the-loop test platform based on TTC580 controller as described in claim 1, special Sign is:
The gas source component (A) is made of air compressor (1) and drier (2), the gas outlet of the air compressor (1) with The air inlet of drier (2) is connected by pneumatic circuit, and the gas outlet of drier (2) is dry to pneumatic test stand component (B) output Dry compressed air.
3. the commercial vehicle electric brake system hardware-in-the-loop test platform based on TTC580 controller as described in claim 1, special Sign is:
In the pneumatic test stand component (B), the air inlet and gas source component of four-loop protection valve (3)
(A) it connects, a gas outlet of four-loop protection valve (3) is connected with the air inlet of the second gas receiver (4), another outlet Mouth is connected with the air inlet of the first gas receiver (5);
The gas outlet of first gas receiver (5) by the first threeway (6) respectively with preceding bridge single channel module air inlet (161) and braking The first air inlet of pedal assembly (111) is connected, the first gas outlet of brake pedal unit (113) and preceding bridge single channel module control mouth (163) it is connected, two gas outlets of preceding bridge single channel module pass through the ABS solenoid valve connection two sides Qian Qiao brake chamber respectively, preceding Pressure sensor is installed respectively at the air inlet of bridge two sides brake chamber;
The gas outlet of second gas receiver (4) by the second threeway (12) respectively with the second air inlet of brake pedal unit (112) and Third threeway (13) connection, the other both ends of third threeway (13) are connected with two air inlets of rear axle two-channel modules respectively, The second gas outlet of brake pedal unit (114) is connected with rear axle two-channel modules control mouth (174), and the two of rear axle two-channel modules A gas outlet is separately connected rear axle two sides brake chamber, installs pressure sensing respectively at the air inlet of rear axle two sides brake chamber Device.
4. the commercial vehicle electric brake system hardware-in-the-loop test platform based on TTC580 controller as described in claim 1, special Sign is:
It is equipped with inside the host (31) for establishing commercial vehicle whole vehicle model and commercial vehicle electric brake system control strategy Software.
5. the commercial vehicle electric brake system hardware-in-the-loop test platform based on TTC580 controller as claimed in claim 4, special Sign is:
The commercial vehicle electric brake system control strategy is ABS control strategy, ESC control strategy or ASR control strategy.
6. the test of the commercial vehicle electric brake system hardware-in-the-loop test platform based on TTC580 controller as described in claim 1 Method, it is characterised in that:
The test method is specific as follows:
Firstly, commercial vehicle whole vehicle model and commercial vehicle electric brake system control strategy to be tested that will be established in host (31) It downloads in TTC580 controller (30);
Then, it is defeated to carry out driver for testing crew manipulation direction disk (10), gas pedal (8) and brake pedal unit (11) Enter;TTC580 controller (30) passes through digital data acquisition channel and analog acquisition passage acquisition steering wheel angle sensor (9) Collected steering wheel angle signal, the collected accelerator opening amount signal of accelerator pedal displacement sensor (7), brake pedal unit (11) collected brake pedal opening amount signal and brake pedal switch signal, and be transmitted in TTC580 controller (30) The whole vehicle model of portion's operation, it is ensured that the normal operation of whole vehicle model;Commercial vehicle EBS electronic brake system in TTC580 controller (30) Control strategy unite with the parameter of identification needed for the next control strategy of whole vehicle model transmission and by digital data acquisition channel and simulation It measures the collected driver's input signal of acquisition channel and four corresponding pressure sensors of wheel of automobile is collected Real-time pressure signal based on, front and back wheel needs at this time are calculated by commercial vehicle electric brake system control-Strategy analysis The target pressure value reached is controlled, and converts this target pressure value to by the PWM output channel of TTC580 controller (30) PWM drive signal is exported to the ABS of preceding bridge single channel module (16), rear axle two-channel modules (17) and automobile front axle two sides Solenoid valve carries out reasonable pressure adjusting to automobile front and back wheel, to reach closed-loop control purpose;
Finally, testing crew can check the real-time parameter curve of testing stand by host (31), to carry out to control strategy Evaluation.
CN201810082175.XA 2018-01-29 2018-01-29 Commercial vehicle electric brake system hardware-in-the-loop test platform and test method based on TTC580 controller Expired - Fee Related CN108107876B (en)

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CN109084991B (en) * 2018-07-06 2020-10-30 武汉理工大学 Hardware-in-loop test system and test method for pneumatic braking performance of commercial vehicle
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CN110884478B (en) * 2019-12-04 2021-09-28 苏州智加科技有限公司 Method and system for determining rise time of brake chamber pressure signal of vehicle
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