A test method for commercial vehicle anti-lock braking system test bench
A technology of anti-lock braking system and test method, which is applied in the direction of vehicle testing, machine/structural component testing, force/torque/power measuring instrument, etc. Misalignment rate, unable to calculate tire characteristics, etc.
Active Publication Date: 2021-07-02
安徽华盈汽车技术有限公司
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Problems solved by technology
However, there are situations where the existing model cannot calculate the characteristics of the tire. For example, pushing a stationary car hard, obviously the tire will be subject to ground reaction force. Since the tire does not roll and has no slip rate, the current model cannot calculate this. Therefore, it is impossible to effectively test the braking effect of the ABS control strategy
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Embodiment Construction
[0057] The present invention will be further described below in conjunction with the accompanying drawings and the following embodiments.
[0058] A test bench for an anti-lock braking system of a commercial vehicle, including a brake system, the brake system includes a brake pedal, an air storage tank, a brake valve, a brake air chamber, a brake and an air source device for supplying air to the air storage tank; After the moving pedal is pressed down, the brake valve opens, and the air reservoir ventilates the brake chamber through the brake valve, so that the brake is pressed and braked;
[0059] Also includes a test system connected to the brake system, the test system includes:
[0060] The data collection module is configured to: collect the air pressure data of the brake chamber and send it to the data processing module;
[0061] The data processing module is configured to: process the air pressure data collected by the data acquisition module, and send the processed ai...
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The present invention provides a commercial vehicle anti-lock braking system test bench and its test method. The test bench includes a braking system and a testing system. The testing system can test the pros and cons of the control strategy and control the braking system The solenoid valve regulates the pressure of the brake chamber; when simulating the brake input, the data acquisition module collects the air pressure data of the brake chamber, and the target computer simulates the changed vehicle running state, and adjusts the solenoid valve according to the vehicle’s running state data, so as to Realize the purpose of testing the built-in control strategy of the test system. The invention has good test effect, and can also detect the braking performance of automobiles equipped with ABS or EBS, can adapt to the detection and testing of braking performance of automobiles with different wheelbases, different wheelbases and different weights, and can simultaneously detect the braking performance of automobiles. The braking performance of the four wheels can detect the braking performance parameters of the car in real time, automatically and accurately.
Description
technical field [0001] The invention relates to the technical field of automobile safety, in particular to a test method for a commercial vehicle anti-lock braking system test bench. Background technique [0002] Anti-lock braking system, referred to as ABS, can automatically control the braking force of the brakes when the car is braking, so that the wheels are not locked and are in a state of rolling and sliding, so as to ensure the adhesion between the wheels and the ground at the maximum. . [0003] In the existing ABS system testing method, the tire model adopted is to relax the slip rate, and then use the effective slip rate obtained by relaxation to calculate the tire characteristics. However, there are situations where the existing model cannot calculate the characteristics of the tire. For example, pushing a stationary car hard, obviously the tire will be subject to ground reaction force. Since the tire does not roll and has no slip rate, the current model cannot c...
Claims
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IPC IPC(8): G01M17/007G01L5/28
CPCG01L5/28G01M17/007
Inventor 朱天军郑红艳李贵远那晓翔蔡超明陈俊斌
Owner 安徽华盈汽车技术有限公司