Semi-trailer pneumatic braking performance road test system

A technology for pneumatic braking and road testing, which is applied in vehicle testing, machine/structural component testing, measuring devices, etc., and can solve problems such as affecting the testing efficiency of road testing, inconvenient portability and installation, and cumbersome data processing operations. Achieve convenient and quick test result processing, easy disassembly and portability, and powerful functions.

Pending Publication Date: 2019-08-23
CHINA AUTOMOTIVE TECH & RES CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the traditional semi-trailer road test system is composed of a vehicle-mounted five-wheel instrument and a photoelectric data acquisition calculator. However, the road test system is large in size and inconvenient to carry and install; Test Efficiency in Road Tests

Method used

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  • Semi-trailer pneumatic braking performance road test system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033]Embodiment 1: Turn on the first control switch 23 and turn on the second control switch 33. At this time, the semi-trailer braking performance road test system can perform the braking test of the semi-trailer. The test vehicle is tested according to the test method and test specified in the standard GB12676 According to the regulations, when the vehicle is at a specified speed, adjust the manual flow control valve 12 to an appropriate position, operate the shuttle valve 1, and brake the semi-trailer alone to stop. During this period, the data calculator 4 collects the air pressure data sent by the air pressure sensor 21 and GPS. The vehicle speed signal sent by the device 31 is integrated and comprehensively calculated, and the results of the braking test, such as braking speed, braking distance, braking deceleration, braking pipeline pressure and changes in the air pressure of the air tank, are transmitted to the data display 6 Store and read analysis on it.

Embodiment 2

[0034] Embodiment 2: disconnect the first control switch 23, connect the second control switch 33, the driver drives the vehicle to test according to GB / T12543 "Automobile Acceleration Performance Test Method", at this time, the GPS collector 31 sends the vehicle speed signal to the data calculation 4, the measured values ​​such as speed and time are displayed on the data display 6, and the power performance test of the automobile train is completed. In the case of this implementation, it is also possible to expand the road test of vehicle sliding (GB / T 12536) performance, maximum speed (GB / T 12536) performance and steep slope climbing (GB / T 12539) performance.

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Abstract

The invention provides a semi-trailer pneumatic braking performance road test system. The semi-trailer pneumatic braking performance road test system comprises a hand control braking triggering module, a data acquisition module, a data arithmetic unit and a data display; the hand control braking triggering module is arranged between a tractor and a trailer, and is connected in a control pipeline in series; the data acquisition module is connected with the data arithmetic unit; and the data arithmetic unit is connected with the data display. According to the pneumatic braking performance road test system, the hand control braking triggering module, the data acquisition module, the data arithmetic unit and the data display are used cooperatively, so that the braking performance road test oftrailer products of all pneumatic braking systems can be realized. The test system is powerful in function and diverse in application, and can be expanded to the relevant tests of the power performance, the braking performance and the like of automobiles and trains.

Description

technical field [0001] The invention belongs to the technical field of vehicle air pressure braking performance test, in particular to a semi-trailer air pressure braking performance road test system. Background technique [0002] The semi-trailer is an important part of the road drop-and-hook transportation system. Due to the long body of the trailer and the large transportation quality, its braking performance is one of the key factors affecting road traffic safety. Most semi-trailers use air pressure braking system, so the air pressure braking performance of semi-trailer needs to be tested by road test. The performance of semi-trailer braking system is clearly stipulated in the United Nations Economic Commission for Europe Automobile Regulations ECE No. 13 and China's national mandatory standard GB12676 "Technical Requirements and Test Methods for Commercial Vehicle and Trailer Braking Systems". [0003] At present, the traditional semi-trailer road test system is compos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/007
CPCG01M17/007
Inventor 孙勇付松青刘文营周佳王涵张琳博
Owner CHINA AUTOMOTIVE TECH & RES CENT
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