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.
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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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