CN205507532U - Automatically controlled braking system laboratory bench of commercial semitrailer - Google Patents
Automatically controlled braking system laboratory bench of commercial semitrailer Download PDFInfo
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- CN205507532U CN205507532U CN201620222013.8U CN201620222013U CN205507532U CN 205507532 U CN205507532 U CN 205507532U CN 201620222013 U CN201620222013 U CN 201620222013U CN 205507532 U CN205507532 U CN 205507532U
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Abstract
The utility model discloses an automatically controlled braking system laboratory bench of commercial semitrailer can't be to the problem of the automatically controlled braking system of commercial semitrailer test for overcoming, and it includes driving simulator, the automatically controlled braking system of commercial semitrailer, host computer display screen, host computer, target machine and singlechip controller. The host computer display screen passes through display VGA line to be connected with the host computer, and host computer output port is connected with the SIT module port of target machine, the NI CAN card port and singlechip controller's the decision -making signal input pin of target machine are connected, driving simulator's the automatically controlled braking main valve of commercial car, steering wheel rotary angle transmitter, accelerator pedal displacement sensor are connected with the NI DAQmx data collection card's of target machine step signal input pin, and driving simulator's the automatically controlled braking main valve of commercial car, steering wheel rotary angle transmitter, accelerator pedal displacement sensor are connected with rotary angle transmitter 0's footboard step signal input pin, singlechip controller and the automatically controlled braking system of commercial semitrailer are connected.
Description
Technical field
This utility model relates to the laboratory table of a kind of commercial semitrailer electric controlled brake system parts, and in particular, this utility model relates to the commercial semitrailer electric controlled brake system laboratory table of a kind of integrated driving simulator.
Background technology
Commercial semitrailer has that freight volume is big, low cost, efficient and economic advantage, is used widely in goods transports.Along with nowadays electric controlled brake system application increases, and electric controlled brake system has the advantage that electrically-controlled valve close wheel limit, and compared with tradition gas braking, retro-speed faster, decreases air pressure and postpones；Each axle can independently be braked power control, improves main trailer braking protection valve harmony, therefore can well improve the braking procedure of commercial semitrailer.Presently, there are the multiple testing stand about brakes test, but the test bed predominantly electric control hydraulic braking system test platform of existing relevant brakes, conventional air braking system test platform and some platforms detected for material object, also do not have a kind of experiment test platform being mainly used in commercial semitrailer electric controlled brake system.
It is CN104949842A that Chinese patent announces (announcement) number, announcement (announcement) day is 2015.09.30, invention entitled " a kind of vehicle composite braking system test development testing stand ", Application No. CN201510334110, apply for artificial Jilin University.This patent utilization real-time platform, rapid control prototyping carry out building of laboratory table with hardware in loop experiment handover module, front-wheel EHB module, trailing wheel EMB module, it is mainly used in research and development and the fast verification of EMB and EHB composite braking system control strategy, there is no driving simulator and be not suitable for the research to commercial semitrailer air-pressure brake.
It is CN203366123U that Chinese patent announces (announcement) number, announcement (announcement) day is 2013.12.25, invention entitled " EHB electric control braking testing stand ", Application No. CN201320486367, applies for company limited of auto parts and components research and development centre of artificial Jilin Province.This patent utilization EHB, driving simulator, test is carried out by dSPACE Simulator, it is mainly used in the detection of EHB performance and simulation real simulation, but this testing stand can only meet the test of below 4500kg vehicle brake fluid system, the test of commercial semitrailer Pneumatic braking system can not be used for.
It is CN104677643A that Chinese patent announces (announcement) number, announcement (announcement) day is 2015.06.03, invention entitled " a kind of automobile brake hardware-in-the-loop test testing stand ", Application No. CN201510071647, apply for the artificial China Measures Institute.This patent utilization main frame, target machine, data actuation, motor driven systems and brakes hardware cell carry out building of testing stand, but do not have driving simulator and without electric controlled brake system, and this patent is mainly used in the conventional air pressure brakes without trailer.
It is CN103926082A that Chinese patent announces (announcement) number, announcement (announcement) day is 2014.07.16, invention entitled " motor vehicle braking system test platform and method ", Application No. CN201410181700, apply for artificial Changcheng Automobile Co., Ltd..This patent is tentatively being selected after the brakes of real vehicle, utilize motor vehicle braking system, braking acquisition module and driving simulator to be measured, the parts in kind of this brakes are tested, it is easy to improve with less cost the brakes of vehicle, but this patent can not be used for checking and the exploitation of control strategy.
There is presently no a kind of laboratory table being specifically designed for commercial semitrailer electric controlled brake system.
Summary of the invention
This utility model is solved the technical problem that it is to overcome prior art to there is the problem that commercial semitrailer electric controlled brake system cannot be carried out experiment test, it is provided that a kind of commercial semitrailer electric controlled brake system laboratory table.
For solving above-mentioned technical problem, this utility model adopts the following technical scheme that realization: described commercial semitrailer electric controlled brake system laboratory table includes driving simulator, commercial semitrailer electric controlled brake system, host display, main frame, target machine and singlechip controller.
Described host display is connected with main frame by display VGA line, and the output port of main frame is connected with the SIT module port in target machine；NI CAN card port in target machine is connected with the decision signal input pin of singlechip controller；Commercial car electric control braking main valve in driving simulator, steering wheel angle sensor, accelerator pedal displacement sensor are connected with the step signal input pin of the NI DAQmx data collecting card in target machine, and the commercial car electric control braking main valve in driving simulator, steering wheel angle sensor, accelerator pedal displacement sensor are connected with the step signal input pin of singlechip controller.
Tractor off-front wheel gas pressure sensor in commercial semitrailer electric controlled brake system, tractor off hind wheel gas pressure sensor, trailer right wheel gas pressure sensor, trailer revolver gas pressure sensor, tractor left rear wheel gas pressure sensor are connected with the pressure sensor signal input pin of the NIDAQmx data collecting card in tractor the near front wheel gas pressure sensor and target machine；Tractor off-front wheel gas pressure sensor in commercial semitrailer electric controlled brake system, tractor off hind wheel gas pressure sensor, trailer right wheel gas pressure sensor, trailer revolver gas pressure sensor, tractor left rear wheel gas pressure sensor are connected with the pressure sensor signal input pin of tractor the near front wheel gas pressure sensor and singlechip controller；The abs valve air inlet high potential pin of singlechip controller tractor off-front wheel abs valve simultaneously and in commercial semitrailer electric controlled brake system is connected with tractor the near front wheel abs valve, the front axle proportion relay valve air inlet high potential pin of singlechip controller is connected with the tractor front axle proportion relay valve in commercial semitrailer electric controlled brake system, the rear axle bridge control valve air inlet pin of singlechip controller is connected with the tractor rear axle bridge control valve in commercial semitrailer electric controlled brake system, the trailer axle ports valve air inlet pin of singlechip controller is connected with the trailer axle control valve in commercial semitrailer electric controlled brake system.
Host display described in technical scheme, main frame, target machine, singlechip controller and driving simulator are arranged in the front of commercial semitrailer electric controlled brake system；Host display, main frame, target machine, singlechip controller are arranged in the right front of commercial semitrailer electric controlled brake system, and driving simulator is arranged in the left front of commercial semitrailer electric controlled brake system；Driving simulator is left and right being arranged symmetrically with relative to host display, main frame, target machine with singlechip controller.
NI DAQmx data collecting card and NI CAN card, SIT module are installed in the target machine described in technical scheme；The model of target machine is NI PXI-1042Q, and the model of data collecting card is NI PXI-6259, and the model of NI CAN card is NI PXI-8512/2；Described main frame is provided with Labview software, Trucksim software and Simulink software；Its model is domestic ordinary PC.
Tractor the near front wheel gas pressure sensor described in technical scheme uses three way cock to be arranged on tractor the near front wheel air chamber, and tractor the near front wheel gas pressure sensor, three way cock are followed successively by with tractor the near front wheel air chamber threadeds；Tractor off-front wheel gas pressure sensor uses three way cock to be arranged on tractor off-front wheel air chamber, and tractor off-front wheel gas pressure sensor, three way cock are followed successively by with tractor off-front wheel air chamber threadeds；Tractor left rear wheel gas pressure sensor uses three way cock to be arranged on tractor left rear wheel air chamber, and tractor left rear wheel gas pressure sensor, three way cock are followed successively by with tractor left rear wheel air chamber threadeds；Tractor off hind wheel gas pressure sensor uses three way cock to be arranged on tractor off hind wheel air chamber, and tractor off hind wheel gas pressure sensor, three way cock are followed successively by with tractor off hind wheel air chamber threadeds；Trailer revolver gas pressure sensor uses three way cock to be arranged on trailer revolver air chamber, and trailer revolver gas pressure sensor, three way cock are followed successively by with trailer revolver air chamber threadeds；Trailer right wheel gas pressure sensor uses three way cock to be arranged on trailer right wheel air chamber, and trailer right wheel gas pressure sensor, three way cock are followed successively by with trailer right wheel air chamber threadeds.
The model of the tractor off-front wheel abs valve described in technical scheme and tractor the near front wheel abs valve is CM4XL-4S/4M；The model of tractor front axle proportion relay valve is WABCO 4802020050；The model of tractor rear axle bridge control valve is WABCO Axle modulations 1st；The model of trailer axle control valve is WABCO trailer EBS D；The model of commercial car electric control braking main valve is WABCO 4800020040.
Commercial semitrailer electric controlled brake system described in technical scheme also includes tractor off-front wheel wheel cylinder, tractor off-front wheel air chamber, tractor the near front wheel wheel cylinder, tractor the near front wheel air chamber, tractor off hind wheel wheel cylinder, tractor off hind wheel air chamber, tractor left rear wheel wheel cylinder, tractor left rear wheel air chamber, trailer right wheel wheel cylinder, trailer right wheel air chamber, trailer left wheel brake wheel cylinder, trailer revolver air chamber, No. 1 gas receiver, air compressor and No. 2 gas receivers.
Described tractor the near front wheel wheel cylinder and tractor off-front wheel wheel cylinder are arranged in the left and right sides of commercial semitrailer electric controlled brake system front position, tractor the near front wheel wheel cylinder is connected by first air chamber fixed mount is fixing with tractor the near front wheel air chamber, tractor off-front wheel wheel cylinder is connected by second air chamber fixed mount is fixing with tractor off-front wheel air chamber, the gas outlet of tractor the near front wheel abs valve is connected with the air inlet pipeline of tractor the near front wheel air chamber, the gas outlet of tractor off-front wheel abs valve is connected with the air inlet of tractor off-front wheel air chamber, the air inlet of tractor the near front wheel abs valve is connected with gas outlet 4 pipeline of tractor front axle proportion relay valve, the air inlet of tractor off-front wheel abs valve is connected with gas outlet 3 pipeline of tractor front axle proportion relay valve；nullTractor left rear wheel wheel cylinder and tractor off hind wheel wheel cylinder are arranged in the left and right sides in commercial semitrailer electric controlled brake system centre position，Tractor left rear wheel wheel cylinder is connected by the 3rd air chamber fixed mount is fixing with tractor left rear wheel air chamber，Tractor off hind wheel wheel cylinder is connected by the 4th air chamber fixed mount is fixing with tractor off hind wheel air chamber，The air inlet of tractor left rear wheel air chamber is connected with gas outlet 4 pipeline of tractor rear axle bridge control valve，The air inlet of tractor off hind wheel air chamber is connected with gas outlet 3 pipeline of tractor rear axle bridge control valve，Trailer left wheel brake wheel cylinder and trailer right wheel wheel cylinder are arranged in the left and right sides of commercial semitrailer electric controlled brake system back-end location，Trailer left wheel brake wheel cylinder is connected by the 5th air chamber fixed mount is fixing with trailer revolver air chamber，Trailer right wheel wheel cylinder is connected by the 6th air chamber fixed mount is fixing with trailer right wheel air chamber，The air inlet of trailer revolver air chamber is connected with gas outlet 4 pipeline of trailer axle control valve，The air inlet of trailer right wheel air chamber is connected with gas outlet 3 pipeline of trailer axle control valve.
nullThe delivery outlet 1 of air compressor is connected with the air inlet pipeline of No. 1 gas receiver，The delivery outlet 2 of air compressor is connected with the air inlet pipeline of No. 2 gas receivers，The gas outlet of No. 1 gas receiver is simultaneously connected to the air inlet 1 of tractor front axle proportion relay valve、On the air inlet 1 of tractor rear axle bridge control valve and the air inlet 1 of commercial car electric control braking main valve，The gas outlet of No. 2 gas receivers is connected respectively on the air inlet 1 of trailer axle control valve and the air inlet 2 of commercial car electric control braking main valve，The gas outlet 4 of commercial car electric control braking main valve is connected respectively to the air inlet 2 of tractor front axle proportion relay valve、On the air inlet 2 of tractor rear axle bridge control valve，The gas outlet 3 of commercial car electric control braking main valve is connected on the air inlet 2 of trailer axle control valve，Air compressor、No. 1 gas receiver and No. 2 gas receivers are arranged in the middle on the right side of commercial semitrailer electric controlled brake system.
Tractor off-front wheel wheel cylinder described in technical scheme and tractor off-front wheel air chamber, tractor the near front wheel wheel cylinder and tractor the near front wheel air chamber, tractor off hind wheel wheel cylinder and tractor off hind wheel air chamber, tractor left rear wheel wheel cylinder and tractor left rear wheel air chamber, trailer right wheel wheel cylinder and trailer right wheel air chamber, trailer left wheel brake wheel cylinder is identical with trailer revolver air chamber structure, every a pair wheel cylinder all uses an air chamber fixed mount to link together with air chamber, and be arranged on the ground of commercial semitrailer electric controlled brake system by the base plate in air chamber fixed mount.
Tractor off-front wheel wheel cylinder described in technical scheme and tractor off-front wheel air chamber include tractor off-front wheel air chamber, air chamber fixed mount, air chamber spring pushing block, spring and guide cylinder；Described air chamber fixed mount is by base plate, front end fixed plate, rear end fixed plate, intermediate support plate and reinforcement composition, tractor off-front wheel air chamber is connected by bolt and rear end fixed plate are fixing, air chamber push rod in tractor off-front wheel air chamber is connected with air chamber spring pushing block, front end fixed plate, rear end fixed plate is welded on base plate with the bottom of intermediate support plate, front end fixed plate, the upper end of rear end fixed plate is connected by screw rod, the bottom of reinforcement is welded on base plate, the other end of reinforcement is welded on the front end face of front end fixed plate, air chamber spring pushing block is connected by spring between the fixed plate of front end, spring and air chamber spring pushing block are arranged in guide cylinder, guide cylinder is fixed in the groove in the fixed plate of front end, tractor off-front wheel air chamber, air chamber push rod, air chamber spring pushing block, spring and the centre of gyration line conllinear of guide cylinder.
Compared with prior art the beneficial effects of the utility model are:
1. this utility model utilizes a complete set of commercial semitrailer electric controlled brake system to combine relevant software and hardware and achieves the test to commercial semitrailer electric controlled brake system parts and the exploitation of control strategy and checking；
2. this utility model utilizes Labview real-time system nesting maturation auto model Trucksim software combine driving simulator and have a complete set of commercial semitrailer electric controlled brake system, it is achieved that testing stand auto model is closer to real vehicle；Taking full advantage of Labview system data acquisition, data process and interface display advantage simultaneously；
3. in this utility model, auto model uses mathematical formulae to write, simulation status is also by computer settings, carrying out emulation experiment not by external environment influence such as road environment, place and weather, reduce experiment economy and time cost, become apparent from especially for trailer this heavy vehicle advantage；Limiting condition test can be carried out with realization, control strategy and actuator are detected, test providing hardware foundation for active safety strategy and actuator；It is capable of repetition test, and testing crew demand is few, be greatly improved testing and control strategy convenience；Owing to test is simple, easily it is controlled policing parameter and repeatedly adjusts acquisition optimized parameter coupling, it is achieved control strategy Optimal Control effect.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings this utility model is further described:
Fig. 1 is commercial semitrailer electric controlled brake system laboratory table structural principle block diagram described in the utility model；
Fig. 2 is the driving simulator structure composition frame chart employed in commercial semitrailer electric controlled brake system laboratory table described in the utility model；
Fig. 3 is commercial semitrailer electric controlled brake system structure composition schematic diagram in commercial semitrailer electric controlled brake system laboratory table described in the utility model；
Fig. 4 is commercial semitrailer wheel cylinder and air chamber structure schematic diagram in commercial semitrailer electric controlled brake system laboratory table described in the utility model；
Fig. 5 is host display interface schematic diagram in commercial semitrailer electric controlled brake system laboratory table described in the utility model；
Fig. 6 is the parameter display interface schematic diagram that in commercial semitrailer electric controlled brake system laboratory table described in the utility model, main frame display interface enters after clicking on one of them interface module；
Fig. 7-a is commercial semitrailer electric controlled brake system laboratory table angle of heel monitoring image of tractor when differential braking is with rear axle active steering control strategy described in the utility model；
Fig. 7-b is commercial semitrailer electric controlled brake system laboratory table angle of heel monitoring image of trailer when differential braking is with rear axle active steering control strategy described in the utility model；
Fig. 8 is singlechip controller structure composition schematic block diagram in commercial semitrailer electric controlled brake system laboratory table described in the utility model；
Fig. 9 is the layout orientation diagram of commercial semitrailer electric controlled brake system laboratory table described in the utility model；
nullIn figure: 1. driving simulator,2. image display,3. steering wheel,4. steering wheel angle sensor,5. commercial car electric control braking main valve,6. accelerator pedal displacement sensor,7. gas pedal,8. commercial semitrailer electric controlled brake system,9. tractor off-front wheel wheel cylinder,10. tractor off-front wheel air chamber,11. tractor off-front wheel gas pressure sensors,12. tractor off-front wheel abs valves,13.1 number gas receiver,15. air compressors,16.2 number gas receiver,17. tractor off hind wheel wheel cylinders,18. tractor off hind wheel air chambers,19. tractor off hind wheel gas pressure sensors,20. trailer right wheel wheel cylinders、21. trailer right wheel air chambers,22. trailer right wheel gas pressure sensors,23. trailer axle control valves,24. trailer left wheel brake wheel cylinders,25. trailer revolver air chambers,26. trailer revolver gas pressure sensors,27. tractor rear axle bridge control valves,28. tractor left rear wheel wheel cylinder,29. tractor left rear wheel air chambers,30. tractor left rear wheel gas pressure sensors,31. tractor the near front wheel wheel cylinders,32. tractor the near front wheel air chambers,33. tractor the near front wheel gas pressure sensors,34. tractor the near front wheel abs valves,35. tractor front axle proportion relay valves,36. electric controlled brake system parameters of operating part display interfaces,37. control strategy observation interfaces,43. host displays,44. main frames (PC),45. target machines (NIPXI cabinet),46. singlechip controllers,47. air chamber spring pushing blocks，48. springs，49. guide cylinders，50. air chamber fixed mounts.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is explained in detail:
Refering to Fig. 1, a kind of commercial semitrailer electric controlled brake system laboratory table described in the utility model includes driving simulator 1, commercial semitrailer electric controlled brake system 8, host display 43, main frame 44, target machine 45, singlechip controller 46.
Described main frame 44 is provided with Labview software, Trucksim software and Simulink software；Its model is domestic ordinary PC.
Described target machine 45 includes NI DAQmx data collecting card, NI CAN card, SIT module；Wherein NI DAQmx data collecting card gathers commercial car electric control braking main valve 5, steering wheel angle sensor 4, accelerator pedal displacement sensor 6, tractor off-front wheel gas pressure sensor 11, tractor off hind wheel gas pressure sensor 19, trailer right wheel gas pressure sensor 22, trailer revolver gas pressure sensor 26, tractor left rear wheel gas pressure sensor 30, the signal of tractor the near front wheel gas pressure sensor 33；The model of target machine 45 is NI PXI-1042Q；The model of data collecting card is NI PXI-6259；The model of NI CAN card is NI PXI-8512/2.
Refering to Fig. 8, described singlechip controller 46 be designed with modular thought, singlechip controller 46 is processed circuit, CAN communication circuit and peripheral drive circuit formed by master cpu, minimum system circuit, pressure sensor signal；Wherein: minimum system circuit is made up of with clock circuit reset circuit, power supply circuits；Peripheral drive circuit is made up of with bridge control valve-driving circuit ABS driving circuit for electromagnetic valve, ratio excitement valve-driving circuit.
Refering to Fig. 9, described host display 43, main frame 44, target machine 45, singlechip controller 46 and driving simulator 1 is arranged in the front of commercial semitrailer electric controlled brake system 8；Main frame 44, target machine 45 and singlechip controller 46 are arranged in the right front of commercial semitrailer electric controlled brake system 8, driving simulator 1 is arranged in the left front of commercial semitrailer electric controlled brake system 8, and driving simulator 1 is arranged symmetrically with in left and right relative to host display 43, main frame 44, target machine 45, singlechip controller 46.
Refering to Fig. 2, described driving simulator 1 includes image display 2, steering wheel 3, steering wheel angle sensor 4, commercial car electric control braking main valve 5, accelerator pedal displacement sensor 6, gas pedal 7, pilot set, simulator bracing frame；Wherein commercial car electric control braking main valve 5 inbuilt displacement sensor.
Pilot set is welded on bottom simulator bracing frame, and image display 2 is bonded on simulator bracing frame, and position and adult normal are sitting in pilot set head portion position at same level line；Steering column on steering wheel 3 is fixed on simulator bracing frame by bearing, and position is that adult normal is sitting in both hands on pilot set and can rotate；Commercial car electric control braking main valve 5, gas pedal 7 are bolted bottom simulation bracing frame, and its position is that adult normal is sitting in both feet on pilot set and just tramples；Steering wheel angle sensor 4 is bonded in the steering column of steering wheel 3, and accelerator pedal displacement sensor 6 is bonded on the downside of gas pedal.
nullRefering to Fig. 3，Described commercial semitrailer electric controlled brake system 8 includes tractor off-front wheel wheel cylinder 9、Tractor off-front wheel air chamber 10、Tractor off-front wheel abs valve 12、Tractor the near front wheel wheel cylinder 31、Tractor the near front wheel air chamber 32、Tractor the near front wheel abs valve 34、Tractor front axle proportion relay valve 35、Tractor off hind wheel wheel cylinder 17、Tractor off hind wheel air chamber 18、Tractor left rear wheel wheel cylinder 28、Tractor left rear wheel air chamber 29、Tractor rear axle bridge control valve 27、Trailer right wheel wheel cylinder 20、Trailer right wheel air chamber 21、Trailer left wheel brake wheel cylinder 24、Trailer revolver air chamber 25、Trailer axle control valve 23、No. 1 gas receiver 13、Air compressor 15、No. 2 gas receivers 16、Tractor off-front wheel gas pressure sensor 11、Tractor off hind wheel gas pressure sensor 19、Trailer right wheel gas pressure sensor 22、Trailer revolver gas pressure sensor 26、Tractor left rear wheel gas pressure sensor 30 and tractor the near front wheel gas pressure sensor 33；Wherein solid line bar represents gas circuit, dashed bars indication circuit.
Described tractor off-front wheel wheel cylinder 9 and tractor off-front wheel air chamber 10, tractor the near front wheel wheel cylinder 31 and tractor the near front wheel air chamber 32, tractor off hind wheel wheel cylinder 17 and tractor off hind wheel air chamber 18, tractor left rear wheel wheel cylinder 28 and tractor left rear wheel air chamber 29, trailer right wheel wheel cylinder 20 is identical with trailer revolver air chamber 25 structure with trailer right wheel air chamber 21 and trailer left wheel brake wheel cylinder 24, every a pair wheel cylinder and air chamber all use an air chamber fixed mount 50 to link together and are arranged in commercial semitrailer electric controlled brake system laboratory table.
Refering to Fig. 4, described tractor off-front wheel wheel cylinder 9 and tractor off-front wheel air chamber 10 include tractor off-front wheel air chamber 10, air chamber fixed mount 50, air chamber spring pushing block 47, spring 48 and guide cylinder 49.
nullDescribed air chamber fixed mount 50 is by base plate、Front end fixed plate、Rear end fixed plate、Intermediate support plate and reinforcement composition，Tractor off-front wheel air chamber 10 is connected with rear end fixed plate by bolt，Air chamber push rod in tractor off-front wheel air chamber 10 is connected with air chamber spring pushing block 47，Two ends fixed plate and intermediate support plate lower end are welded on base plate，Fixed plate upper end, two ends is connected by screw rod，Reinforcement one section is welded on base plate，The other end is welded in the fixed plate of front end，It is connected by spring 48 between air chamber spring pushing block 47 and front end fixed plate，Spring 48 and air chamber spring pushing block 47 are arranged in guide cylinder 49，Guide cylinder is fixed in the fixed plate of front end by the groove in the fixed plate of front end，Base plate is arranged on ground，Tractor off-front wheel air chamber 10、Air chamber push rod、Air chamber spring pushing block 47、Spring 48 and the centre of gyration line conllinear of guide cylinder 49.
When brake pedal is stepped on, compressed air can promote air chamber push rod to stretch out, the air chamber spring pushing block 47 being fixed on air chamber push rod end moves forward, and compression spring 48, cause the deformation of spring 48, thus it is deformed power, and forming the deformation drag of tractor off-front wheel air chamber 10, when thus can simulate actual vehicle braking, caliper (brake drum) contacts the static brake power formed with brake disc (brake-shoe).
Described tractor off-front wheel abs valve 12 and the model of tractor the near front wheel abs valve 34 are CM4XL-4S/4M；The model of tractor front axle proportion relay valve 35 is WABCO 4802020050；The model of tractor rear axle bridge control valve 27 is WABCO Axle modulations 1st(4801030120)；The model of trailer axle control valve 23 is WABCO trailer EBS D (4801020140)；The model of commercial car electric control braking main valve 5 is WABCO 4800020040.
Circuit connects:
nullRefering to Fig. 1 and Fig. 3，Host display 43 is connected with main frame 44 by display VGA line，Main frame 44 output port is connected with the SIT module port in target machine 45，Commercial car electric control braking main valve 5 in driving simulator 1、Steering wheel angle sensor 4、Accelerator pedal displacement sensor 6 is connected with the step signal input pin of the NI DAQmx data collecting card in target machine 45，Commercial car electric control braking main valve 5 in driving simulator 1、Steering wheel angle sensor 4、Accelerator pedal displacement sensor 6 is connected with the step signal input pin of singlechip controller 46，Tractor off-front wheel gas pressure sensor 11、Tractor off hind wheel gas pressure sensor 19、Trailer right wheel gas pressure sensor 22、Trailer revolver gas pressure sensor 26、Tractor left rear wheel gas pressure sensor 30 is connected with the pressure sensor signal input pin of tractor the near front wheel gas pressure sensor 33 with the NI DAQmx data collecting card in target machine 45，Tractor off-front wheel gas pressure sensor 11、Tractor off hind wheel gas pressure sensor 19、Trailer right wheel gas pressure sensor 22、Trailer revolver gas pressure sensor 26、Tractor left rear wheel gas pressure sensor 30 is connected with the pressure sensor signal input pin of singlechip controller 46 with tractor the near front wheel gas pressure sensor 33，NI CAN card port in target machine 45 is connected with the decision signal input pin of singlechip controller 46，The abs valve air inlet high potential pin of singlechip controller 46 is connected with tractor off-front wheel abs valve 12 and tractor the near front wheel abs valve 34 simultaneously，The front axle proportion relay valve air inlet high potential pin of singlechip controller 46 is connected with tractor front axle proportion relay valve 35，The rear axle bridge control valve air inlet pin of singlechip controller 46 is connected with tractor rear axle bridge control valve 27，The trailer axle ports valve air inlet pin of singlechip controller 46 is connected with trailer axle control valve 23.
Gas circuit connects:
nullRefering to Fig. 3，Tractor the near front wheel wheel cylinder 31 and tractor off-front wheel wheel cylinder 9 are arranged in the left and right sides of commercial semitrailer electric controlled brake system 8 front position，Tractor the near front wheel wheel cylinder 31 is connected by first air chamber fixed mount 50 with tractor the near front wheel air chamber 32，Tractor the near front wheel gas pressure sensor 33 is threadeded by three way cock with tractor the near front wheel air chamber 32，Tractor off-front wheel wheel cylinder 9 is connected by second air chamber fixed mount 50 with tractor off-front wheel air chamber 10，Tractor off-front wheel gas pressure sensor 11 is threadeded by three way cock with tractor off-front wheel air chamber 10，The gas outlet of tractor the near front wheel abs valve 34 is connected with the air inlet pipeline of tractor the near front wheel air chamber 32，The gas outlet of tractor off-front wheel abs valve 12 is connected with the air inlet of tractor off-front wheel air chamber 10，The air inlet of tractor the near front wheel abs valve 34 is connected on the gas outlet 4 of tractor front axle proportion relay valve 35，The air inlet of tractor off-front wheel abs valve 12 is connected on the gas outlet 3 of tractor front axle proportion relay valve 35；nullTractor left rear wheel wheel cylinder 28 and tractor off hind wheel wheel cylinder 17 are arranged in the left and right sides in commercial semitrailer electric controlled brake system 8 centre position，Tractor left rear wheel wheel cylinder 28 is connected by the 3rd air chamber fixed mount 50 with tractor left rear wheel air chamber 29，Tractor left rear wheel gas pressure sensor 30 is threadeded by three way cock with tractor left rear wheel air chamber 29，Tractor off hind wheel wheel cylinder 17 is connected by the 4th air chamber fixed mount 50 with tractor off hind wheel air chamber 18，Tractor off hind wheel gas pressure sensor 19 is threadeded by three way cock with tractor off hind wheel air chamber 18，The air inlet of tractor left rear wheel air chamber 29 is connected on the gas outlet 4 of tractor rear axle bridge control valve 27，The air inlet of tractor off hind wheel air chamber 18 is connected on the gas outlet 3 of tractor rear axle bridge control valve 27，Trailer left wheel brake wheel cylinder 24 and trailer right wheel wheel cylinder 20 are arranged in the left and right sides of commercial semitrailer electric controlled brake system 8 back-end location，Trailer left wheel brake wheel cylinder 24 is connected by the 5th air chamber fixed mount 50 with trailer revolver air chamber 25，Trailer revolver gas pressure sensor 26 is threadeded by three way cock with trailer revolver air chamber 25，Trailer right wheel wheel cylinder 20 is connected by the 6th air chamber fixed mount 50 with trailer right wheel air chamber 21，Trailer right wheel gas pressure sensor 22 is threadeded by three way cock with trailer right wheel air chamber 21，The air inlet of trailer revolver air chamber 25 is connected on the gas outlet 4 of trailer axle control valve 23，The air inlet of trailer right wheel air chamber 21 is connected on the gas outlet 3 of trailer axle control valve 23.
nullThe delivery outlet 1 of air compressor 15 is connected with the air inlet pipeline of No. 1 gas receiver 13，The delivery outlet 2 of air compressor 15 is connected with the air inlet pipeline of No. 2 gas receivers 16，The gas outlet of No. 1 gas receiver 13 is simultaneously connected to the air inlet 1 of tractor front axle proportion relay valve 35、On the air inlet 1 of tractor rear axle bridge control valve 27 and the air inlet 1 of commercial car electric control braking main valve 5，The gas outlet of No. 2 gas receivers 16 is connected respectively on the air inlet 1 of trailer axle control valve 23 and the air inlet 2 of commercial car electric control braking main valve 5，The gas outlet 4 of commercial car electric control braking main valve 5 is connected respectively to the air inlet 2 of tractor front axle proportion relay valve 35、The air inlet 2 of tractor rear axle bridge control valve 27，The gas outlet 3 of commercial car electric control braking main valve 5 is connected on the air inlet 2 of trailer axle control valve 23，Air compressor 15 and gas receiver are collectively arranged in the middle on the right side of commercial semitrailer electric controlled brake system 8.
It includes 6 gas brake circuits:
Loop one is by air compressor 15, through No. 1 gas receiver 13, commercial car electric control braking main valve 5, tractor front axle proportion relay valve 35, being connected respectively to tractor off-front wheel abs valve 12 and tractor the near front wheel abs valve 34 by tractor front axle proportion relay valve 35 again, tractor off-front wheel abs valve 12 and tractor the near front wheel abs valve 34 are consecutively connected to tractor off-front wheel air chamber 10 and tractor the near front wheel air chamber 32；
Loop two is by air compressor 15, through No. 1 gas receiver 13, tractor front axle proportion relay valve 35, being connected respectively to tractor off-front wheel abs valve 12 and tractor the near front wheel abs valve 34 by tractor front axle proportion relay valve 35 again, tractor off-front wheel abs valve 12 and tractor the near front wheel abs valve 34 are sequentially connected with tractor off-front wheel air chamber 10 and tractor the near front wheel air chamber 32；
Loop three, by air compressor 15, through No. 1 gas receiver 13, commercial car electric control braking main valve 5, tractor rear axle bridge control valve 27, then is connected respectively to tractor off hind wheel air chamber 18 and tractor left rear wheel air chamber 29 by tractor rear axle bridge control valve 27；
Loop four, by air compressor 15, is connected respectively to tractor off hind wheel air chamber 18 and tractor left rear wheel air chamber 29 through No. 1 gas receiver 13, tractor rear axle bridge control valve 27；
Loop five is by air compressor 15, through No. 2 gas receivers 16, commercial car electric control braking main valve 5, trailer axle control valve 23 and be ultimately connected to trailer right wheel air chamber 21 and trailer revolver air chamber 25；
Loop six is by air compressor 15, through No. 2 gas receivers 16, trailer axle control valve 23 and be ultimately connected to trailer right wheel air chamber 21 and trailer revolver air chamber 25.
All using at all brake chambers that three way cock is threaded gas pressure sensor, running voltage is 5V, and measurement scope is 0～1MPa.
When commercial semitrailer is not braked, brake gas is begun to pass through No. 1 gas receiver 13 and No. 2 gas receivers 16 by air compressor 15, is supplied at tractor front axle proportion relay valve 35, tractor rear axle bridge control valve 27 and trailer axle control valve 23, now valve closing；When commercial semitrailer is carried out electric control braking, singlechip controller 46 sends, by the signal collected and NI CAN card, the instruction come and controls tractor front axle proportion relay valve 35, tractor rear axle bridge control valve 27 and the unlatching of trailer axle control valve 23 and opening degree, the gas now supplied to front axle proportion relay valve valve 35 arrives tractor off-front wheel abs valve 12 and tractor the near front wheel abs valve 34 by valve body until tractor off-front wheel air chamber 10 and tractor the near front wheel air chamber 32, the gas supplied to tractor rear axle bridge control valve 27 and trailer axle control valve 23 valve directly arrives tractor off hind wheel air chamber 18 air chamber by valve body, trailer right wheel air chamber 21, trailer revolver air chamber 25 and tractor left rear wheel air chamber 29, thus complete electric control braking process.
nullFirst，Main frame (PC) 44 is operated，Set up virtual vehicle model by the Trucksim software in main frame and Simulink software and complete writing of control program，The auto model set up by Trucksim software is downloaded to target machine 45，By the electric control braking main valve 5 in driving simulator、Gas pedal 7 and steering wheel 3 complete the braking to virtual vehicle model、Accelerate and cornering operation，Now in target machine 45, data collecting system is started working，Its data collecting card NI DAQmx gathers by the displacement transducer in commercial car electric control braking main valve 5、Accelerator pedal displacement sensor 6、Steering wheel angle sensor 4 and tractor off-front wheel gas pressure sensor 11、Tractor off hind wheel gas pressure sensor 19、Trailer right wheel gas pressure sensor 22、Trailer revolver gas pressure sensor 26、Tractor left rear wheel gas pressure sensor 30、The signal that tractor the near front wheel gas pressure sensor 33 sends，Collect the actual value obtaining this tittle by mathematics after signal is changed，And the corresponding signal value after converting realizes the control to Trucksim auto model；Secondly, control program is with dynamic link library form, download in Labview program by SIT module, dynamic link controls program and utilizes the input vehicle-state amount of being controlled to calculate, decision-making goes out brake pressure, wherein decision-making brake pressure is sent to singlechip controller 46 by the NI CAN card of Labview, singlechip controller 46 utilizes the sensor signal collected and the pressure come by the transmission of NI CAN card to send instruction simultaneously, according to decision-making Stress control now tractor front axle proportion relay valve 35, tractor rear axle bridge control valve 27 and the unlatching of trailer axle control valve 23 and open aperture；Then, determine that tractor off-front wheel abs valve 12, tractor the near front wheel abs valve 34, tractor front axle proportion relay valve 35, tractor rear axle bridge control valve 27, trailer axle control valve 23 supercharging decompression or pressurize operate by comparison object pressure and actual pressure；nullAgain，These control commands are carried out tractor off-front wheel abs valve 12 by pwm signal、Tractor the near front wheel abs valve 34、Tractor front axle proportion relay valve 35、Tractor rear axle bridge control valve 27、The control of trailer axle control valve 23，Realize tractor off-front wheel air chamber 10、Tractor the near front wheel air chamber 32、Tractor off hind wheel air chamber 18、Tractor left rear wheel air chamber 29、Trailer right wheel air chamber 21、The pressure follow goal pressure of trailer revolver air chamber 25，And then control to lead to tractor off-front wheel air chamber 10、Tractor the near front wheel air chamber 32、Tractor off hind wheel air chamber 18、Tractor left rear wheel air chamber 29、Trailer right wheel air chamber 21、The gas pressure of trailer revolver air chamber 25 realizes tractor off-front wheel wheel cylinder 9、Tractor the near front wheel wheel cylinder 31、Tractor off hind wheel wheel cylinder 17、Tractor left rear wheel wheel cylinder 28、Trailer right wheel wheel cylinder 20、The pressure of trailer left wheel brake wheel cylinder 24 adjusts；Finally, auto model is sent to vehicle driving simulator 1 and main frame 44 to the reaction done by manipulation by target machine 45, Vehicular behavior can be observed intuitively by the image display 2 in vehicle driving simulator, by host display 43 can check auto model operational factor and can be with the operation of monitoring objective machine 45.
Wherein, if in order to realize the checking to different commercial semitrailer control strategies or the exploitation of control strategy, then need laboratory table out of service, may then pass through Simulink software and be controlled writing of program, programming completes with dynamic link library form, download in Labview program by SIT module, running experiment platform again, i.e. different control strategies can be verified；If for the test realizing commercial semitrailer electric controlled brake system parts, then need laboratory table out of service, then parts are replaced, re-establish auto model by Trucksim software simultaneously, downloading in target machine 45, the parts that commercial semitrailer electric controlled brake system is different i.e. can be tested by running experiment platform again.
If described commercial semitrailer electric controlled brake system laboratory table is braked power distribution control strategy checking, its process is as follows: by the Brake force distribution strategy that write by Simulink with dynamic link library form, download in Labview program by SIT module, then operator is by semitrailer electric controlled brake system laboratory table, the running status of vehicle under this control strategy is monitored by image display 2 in driving simulator 1, such as Yaw stability, roll stability, path follow-up capability, side drift angle, the swing degree of angle of heel and trailer afterbody, yaw unstability and Fold, the lateral acceleration etc. of trailer；Monitor the working condition of each valve body under this control strategy by the parameters of operating part display interface 36 in host display 43, as valve body whether open, aperture, pressure etc.；Ruuning situation by the control strategy observation interface 37 Monitoring and Controlling strategy in host display 43；When speed is relatively low, wheel lock up is little to stability influence, only need to carry out conventional brake, now tractor off-front wheel abs valve 12, tractor the near front wheel abs valve 34, tractor front axle proportion relay valve 35, tractor rear axle bridge control valve 27, trailer axle control valve 23 are made without action, at this moment can check that vehicle runs by image display 2 the most normal, check whether each valve body meets control requirement and carry out action by host display 43；Then need tractor off-front wheel abs valve 12, tractor the near front wheel abs valve 34, tractor front axle proportion relay valve 35, tractor rear axle bridge control valve 27, trailer axle control valve 23 to carry out action and carry out the distribution of regulating brake force when slip rate raises and needs to carry out electronic braking force distribution, check running state of the vehicle and tractor off-front wheel abs valve 12, tractor the near front wheel abs valve 34, tractor front axle proportion relay valve 35, tractor rear axle bridge control valve 27, trailer axle control valve 23 working condition again by image display 2 and host display 43；If vehicle can not stably travel or tractor off-front wheel abs valve 12, tractor the near front wheel abs valve 34, tractor front axle proportion relay valve 35, tractor rear axle bridge control valve 27, trailer axle control valve 23 can not be operating normally, then illustrate that this control strategy does not meets functional requirement.
If described commercial semitrailer electric controlled brake system laboratory table carries out the research of a kind of trailer differential braking and the control strategy of rear axle active steering, then only need to be to differential braking control strategy, rear axle active steering control strategy, control strategy that both are integrated respectively with downloading to after Simulink software programming in target machine 45, different control parameter can be drawn by above-mentioned work process, the good and bad situation of different control strategy, the comparison of a kind of angle of heel parameter can be drawn after comparing.
If described commercial semitrailer electric controlled brake system laboratory table carries out the test of tractor rear axle bridge control valve 27, after commercial semitrailer electric controlled brake system laboratory table is run, tractor rear axle bridge control valve 27 parameter display interface is clicked through by host display 43, this interface includes that tractor rear axle bridge control valve 27 opens information and tractor rear axle bridge control valve 27 internal gas pressure information, and thus interface can learn whether tractor rear axle bridge control valve 27 can be opened in time and whether valve internal gas pressure can keep the information such as consistent, lag time with target air pressure.
If described commercial semitrailer electric controlled brake system laboratory table carries out the test of commercial car electric control braking main valve 5, after commercial semitrailer electric controlled brake system laboratory table is run, clicked through the parameter display interface of commercial car electric control braking main valve 5 by host display 43, this interface includes the information such as whether commercial car electric control braking main valve 5 is opened, opening speed, aperture；When whether test commercial car electric control braking main valve 5 is opened, trample the commercial car electric control braking main valve 5 in driving simulator 1, check the unlatching information in electric controlled brake system parameters of operating part display interface 36；During test commercial car electric control braking main valve 5 opening speed, trample/unclamp commercial car electric control braking main valve 5 continuously, check the opening speed information in electric control braking main valve parameter display interface 36；During test commercial car electric control braking main valve 5 aperture, trample commercial car electric control braking main valve 5 and remain stationary as state, check the opening information in electric control braking main valve parameter display interface 36.
Described software includes Labview software, Trucksim software and Simulink software, wherein, Trucksim software includes that auto model, operating mode are arranged and data output is respectively used to replace actual vehicle, carry out the setting such as route or travel by vehicle and road surface and vehicle-state output and the output of vehicle operation image；Labview software includes that data acquisition, the transmission of CAN data and software are combined and is respectively used to carry out collecting sensor signal, utilize CAN card to send decision-making pressure to single-chip microcomputer, realize calling of Trucksim and Simulink software；Simulink software includes that programming, generation dynamic link library are respectively used to carry out trailer and control programming and Simulink control Program Generating Dynamic Link Library Function and then utilizes SIT to be loaded in target machine；Utilize the mutual interface of Labview Yu Trucksim software, auto model and the operating mode of Trucksim software are arranged and download in target machine, i.e. achieves data interaction and the co-ordination of three softwares.
Below it is only preferred embodiment of the present utility model, is to explain and illustrating, is not the restriction to this utility model itself.This utility model is not limited to specific embodiment disclosed herein, and is determined by appended claim.Further it is described above that the record relevant with specific embodiment should not be construed as the restriction of definition to the term used in scope of the present utility model or claim.Other different embodiments various of disclosed embodiment and various different deformation it will be apparent to those skilled in the art that.But all these embodiments without departing substantially from this utility model basic conception, change and deform all in scope of the following claims.
Claims (8)
1. a commercial semitrailer electric controlled brake system laboratory table, it is characterized in that, described commercial semitrailer electric controlled brake system laboratory table includes driving simulator (1), commercial semitrailer electric controlled brake system (8), host display (43), main frame (44), target machine (45) and singlechip controller (46)；
Described host display (43) is connected with main frame (44) by display VGA line, and the output port of main frame (44) is connected with the SIT module port in target machine (45)；NI CAN card port in target machine (45) is connected with the decision signal input pin of singlechip controller (46)；Commercial car electric control braking main valve (5) in driving simulator (1), steering wheel angle sensor (4), accelerator pedal displacement sensor (6) are connected with the step signal input pin of the NI DAQmx data collecting card in target machine (45), and commercial car electric control braking main valve (5) in driving simulator (1), steering wheel angle sensor (4), accelerator pedal displacement sensor (6) are connected with the step signal input pin of singlechip controller (46)；
Tractor off-front wheel gas pressure sensor (11) in commercial semitrailer electric controlled brake system (8), tractor off hind wheel gas pressure sensor (19), trailer right wheel gas pressure sensor (22), trailer revolver gas pressure sensor (26), tractor left rear wheel gas pressure sensor (30) is connected with the pressure sensor signal input pin of the NI DAQmx data collecting card in tractor the near front wheel gas pressure sensor (33) and target machine (45)；Tractor off-front wheel gas pressure sensor (11) in commercial semitrailer electric controlled brake system (8), tractor off hind wheel gas pressure sensor (19), trailer right wheel gas pressure sensor (22), trailer revolver gas pressure sensor (26), tractor left rear wheel gas pressure sensor (30) are connected with the pressure sensor signal input pin of tractor the near front wheel gas pressure sensor (33) and singlechip controller (46)；The abs valve air inlet high potential pin of singlechip controller (46) tractor off-front wheel abs valve (12) simultaneously and in commercial semitrailer electric controlled brake system (8) is connected with tractor the near front wheel abs valve (34), the front axle proportion relay valve air inlet high potential pin of singlechip controller (46) is connected with tractor front axle proportion relay valve (35) in commercial semitrailer electric controlled brake system (8), the rear axle bridge control valve air inlet pin of singlechip controller (46) is connected with tractor rear axle bridge control valve (27) in commercial semitrailer electric controlled brake system (8), the trailer axle ports valve air inlet pin of singlechip controller (46) is connected with trailer axle control valve (23) in commercial semitrailer electric controlled brake system (8).
2. according to the commercial semitrailer electric controlled brake system laboratory table described in claim 1, it is characterized in that, described host display (43), main frame (44), target machine (45), singlechip controller (46) and driving simulator (1) is arranged in the front of commercial semitrailer electric controlled brake system (8)；Host display (43), main frame (44), target machine (45), singlechip controller (46) are arranged in the right front of commercial semitrailer electric controlled brake system (8), and driving simulator (1) is arranged in the left front of commercial semitrailer electric controlled brake system (8)；Driving simulator (1) is arranged symmetrically with in left and right with singlechip controller (46) relative to host display (43), main frame (44), target machine (45).
3. according to the commercial semitrailer electric controlled brake system laboratory table described in claim 1, it is characterised in that be provided with NI DAQmx data collecting card and NI CAN card, SIT module in described target machine (45)；The model of target machine (45) is NI PXI-1042Q, and the model of data collecting card is NI PXI-6259, and the model of NI CAN card is NI PXI-8512/2；
The model of described main frame (44) is domestic ordinary PC.
4. according to the commercial semitrailer electric controlled brake system laboratory table described in claim 1, it is characterized in that, described tractor the near front wheel gas pressure sensor (33) uses three way cock to be arranged on tractor the near front wheel air chamber (32), and tractor the near front wheel gas pressure sensor (33), three way cock are followed successively by with tractor the near front wheel air chamber (32) threadeds；Tractor off-front wheel gas pressure sensor (11) uses three way cock to be arranged on tractor off-front wheel air chamber (10), and tractor off-front wheel gas pressure sensor (11), three way cock are followed successively by with tractor off-front wheel air chamber (10) threadeds；Tractor left rear wheel gas pressure sensor (30) uses three way cock to be arranged on tractor left rear wheel air chamber (29), and tractor left rear wheel gas pressure sensor (30), three way cock are followed successively by with tractor left rear wheel air chamber (29) threadeds；Tractor off hind wheel gas pressure sensor (19) uses three way cock to be arranged on tractor off hind wheel air chamber (18), and tractor off hind wheel gas pressure sensor (19), three way cock are followed successively by with tractor off hind wheel air chamber (18) threadeds；Trailer revolver gas pressure sensor (26) uses three way cock to be arranged on trailer revolver air chamber (25), and trailer revolver gas pressure sensor (26), three way cock are followed successively by with trailer revolver air chamber (25) threadeds；Trailer right wheel gas pressure sensor (22) uses three way cock to be arranged on trailer right wheel air chamber (21), and trailer right wheel gas pressure sensor (22), three way cock are followed successively by with trailer right wheel air chamber (21) threadeds.
5. according to the commercial semitrailer electric controlled brake system laboratory table described in claim 1, it is characterised in that described tractor off-front wheel abs valve (12) and the model of tractor the near front wheel abs valve (34) are CM4XL-4S/4M；The model of tractor front axle proportion relay valve (35) is WABCO 4802020050；The model of tractor rear axle bridge control valve (27) is WABCO Axle modulations 1st；The model of trailer axle control valve (23) is WABCO trailer EBS D；The model of commercial car electric control braking main valve (5) is WABCO 4800020040.
6. according to the commercial semitrailer electric controlled brake system laboratory table described in claim 1, it is characterized in that, described commercial semitrailer electric controlled brake system (8) also includes tractor off-front wheel wheel cylinder (9), tractor off-front wheel air chamber (10), tractor the near front wheel wheel cylinder (31), tractor the near front wheel air chamber (32), tractor off hind wheel wheel cylinder (17), tractor off hind wheel air chamber (18), tractor left rear wheel wheel cylinder (28), tractor left rear wheel air chamber (29), trailer right wheel wheel cylinder (20), trailer right wheel air chamber (21), trailer left wheel brake wheel cylinder (24), trailer revolver air chamber (25), No. 1 gas receiver (13), air compressor (15) and No. 2 gas receivers (16)；
nullDescribed tractor the near front wheel wheel cylinder (31) and tractor off-front wheel wheel cylinder (9) are arranged in the left and right sides of commercial semitrailer electric controlled brake system (8) front position，Tractor the near front wheel wheel cylinder (31) is connected by first air chamber fixed mount (50) is fixing with tractor the near front wheel air chamber (32)，Tractor off-front wheel wheel cylinder (9) is connected by second air chamber fixed mount (50) is fixing with tractor off-front wheel air chamber (10)，The gas outlet of tractor the near front wheel abs valve (34) is connected with the air inlet pipeline of tractor the near front wheel air chamber (32)，The gas outlet of tractor off-front wheel abs valve (12) is connected with the air inlet of tractor off-front wheel air chamber (10)，The air inlet of tractor the near front wheel abs valve (34) is connected with gas outlet 4 pipeline of tractor front axle proportion relay valve (35)，The air inlet of tractor off-front wheel abs valve (12) is connected with gas outlet 3 pipeline of tractor front axle proportion relay valve (35)；nullTractor left rear wheel wheel cylinder (28) and tractor off hind wheel wheel cylinder (17) are arranged in the left and right sides in commercial semitrailer electric controlled brake system (8) centre position，Tractor left rear wheel wheel cylinder (28) is connected by the 3rd air chamber fixed mount (50) is fixing with tractor left rear wheel air chamber (29)，Tractor off hind wheel wheel cylinder (17) is connected by the 4th air chamber fixed mount (50) is fixing with tractor off hind wheel air chamber (18)，The air inlet of tractor left rear wheel air chamber (29) is connected with gas outlet 4 pipeline of tractor rear axle bridge control valve (27)，The air inlet of tractor off hind wheel air chamber (18) is connected with gas outlet 3 pipeline of tractor rear axle bridge control valve (27)，Trailer left wheel brake wheel cylinder (24) and trailer right wheel wheel cylinder (20) are arranged in the left and right sides of commercial semitrailer electric controlled brake system (8) back-end location，Trailer left wheel brake wheel cylinder (24) is connected by the 5th air chamber fixed mount (50) is fixing with trailer revolver air chamber (25)，Trailer right wheel wheel cylinder (20) is connected by the 6th air chamber fixed mount (50) is fixing with trailer right wheel air chamber (21)，The air inlet of trailer revolver air chamber (25) is connected with gas outlet 4 pipeline of trailer axle control valve (23)，The air inlet of trailer right wheel air chamber (21) is connected with gas outlet 3 pipeline of trailer axle control valve (23)；
nullThe delivery outlet 1 of air compressor (15) is connected with the air inlet pipeline of No. 1 gas receiver (13)，The delivery outlet 2 of air compressor (15) is connected with the air inlet pipeline of No. 2 gas receivers (16)，The gas outlet of No. 1 gas receiver (13) is simultaneously connected to the air inlet 1 of tractor front axle proportion relay valve (35)、On the air inlet 1 of tractor rear axle bridge control valve (27) and the air inlet 1 of commercial car electric control braking main valve (5)，The gas outlet of No. 2 gas receivers (16) is connected respectively on the air inlet 1 of trailer axle control valve (23) and the air inlet 2 of commercial car electric control braking main valve (5)，The gas outlet 4 of commercial car electric control braking main valve (5) is connected respectively to the air inlet 2 of tractor front axle proportion relay valve (35)、On the air inlet 2 of tractor rear axle bridge control valve (27)，The gas outlet 3 of commercial car electric control braking main valve (5) is connected on the air inlet 2 of trailer axle control valve (23)，Air compressor (15)、No. 1 gas receiver (13) is arranged in the middle on the right side of commercial semitrailer electric controlled brake system (8) with No. 2 gas receivers (16).
null7. according to the commercial semitrailer electric controlled brake system laboratory table described in claim 6，It is characterized in that，Described tractor off-front wheel wheel cylinder (9) and tractor off-front wheel air chamber (10)、Tractor the near front wheel wheel cylinder (31) and tractor the near front wheel air chamber (32)、Tractor off hind wheel wheel cylinder (17) and tractor off hind wheel air chamber (18)、Tractor left rear wheel wheel cylinder (28) and tractor left rear wheel air chamber (29)、Trailer right wheel wheel cylinder (20) and trailer right wheel air chamber (21)、Trailer left wheel brake wheel cylinder (24) is identical with trailer revolver air chamber (25) structure，Every a pair wheel cylinder all uses an air chamber fixed mount (50) to link together with air chamber，And be arranged on the ground of commercial semitrailer electric controlled brake system (8) by the base plate in air chamber fixed mount (50).
8. according to the commercial semitrailer electric controlled brake system laboratory table described in claim 6, it is characterized in that, described tractor off-front wheel wheel cylinder (9) and tractor off-front wheel air chamber (10) include tractor off-front wheel air chamber (10), air chamber fixed mount (50), air chamber spring pushing block (47), spring (48) and guide cylinder (49)；
nullDescribed air chamber fixed mount (50) is by base plate、Front end fixed plate、Rear end fixed plate、Intermediate support plate and reinforcement composition，Tractor off-front wheel air chamber (10) is connected by bolt and rear end fixed plate are fixing，Air chamber push rod in tractor off-front wheel air chamber (10) is connected with air chamber spring pushing block (47)，Front end fixed plate、Rear end fixed plate is welded on base plate with the bottom of intermediate support plate，Front end fixed plate、The upper end of rear end fixed plate is connected by screw rod，The bottom of reinforcement is welded on base plate，The other end of reinforcement is welded on the front end face of front end fixed plate，It is connected by spring (48) between air chamber spring pushing block (47) and front end fixed plate，Spring (48) and air chamber spring pushing block (47) are arranged in guide cylinder (49)，Guide cylinder (49) is fixed in the groove in the fixed plate of front end，Tractor off-front wheel air chamber (10)、Air chamber push rod、Air chamber spring pushing block (47)、Spring (48) and the centre of gyration line conllinear of guide cylinder (49).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201620222013.8U CN205507532U (en) | 2016-03-22 | 2016-03-22 | Automatically controlled braking system laboratory bench of commercial semitrailer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620222013.8U CN205507532U (en) | 2016-03-22 | 2016-03-22 | Automatically controlled braking system laboratory bench of commercial semitrailer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105843209A (en) * | 2016-03-22 | 2016-08-10 | 吉林大学 | Commercial semitrailer electronically-controlled braking system test bench |
| CN110435624A (en) * | 2019-08-22 | 2019-11-12 | 三一汽车起重机械有限公司 | Trailer towing draught control system, load balance factor power adjusting method and engineering truck |
-
2016
- 2016-03-22 CN CN201620222013.8U patent/CN205507532U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105843209A (en) * | 2016-03-22 | 2016-08-10 | 吉林大学 | Commercial semitrailer electronically-controlled braking system test bench |
| CN105843209B (en) * | 2016-03-22 | 2018-03-09 | 吉林大学 | Commercial semitrailer electric controlled brake system experimental bench |
| CN110435624A (en) * | 2019-08-22 | 2019-11-12 | 三一汽车起重机械有限公司 | Trailer towing draught control system, load balance factor power adjusting method and engineering truck |
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