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Hydraulic ABS test stand based on wheel speed closed-loop simulation

A test bench, hydraulic technology, applied in vehicle testing, machine/structural component testing, measuring devices, etc., can solve problems such as the inability to detect ABS quickly, effectively and economically

Inactive Publication Date: 2009-08-19
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, this detection method can no longer meet the requirements of fast, effective and economical detection of ABS.

Method used

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  • Hydraulic ABS test stand based on wheel speed closed-loop simulation
  • Hydraulic ABS test stand based on wheel speed closed-loop simulation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] This test bench is mainly composed of industrial computer (1), wheel speed generating device (19), system under test (20), pressure source (21), deflation system (22), braking system (23) and data acquisition system ( 24) Composition.

[0011] Below is that the present invention is further described in conjunction with accompanying drawing:

[0012] refer to figure 1 , the industrial computer (1) is connected to the motion controller (2) through the PCI slot, the motion controller (2) is connected to the AC servo motor driver (3) through the adapter plug, and the AC servo motor driver (3) is connected to the AC servo motor (4) Connected via 220V power line and signal line; the ring gear (5) is fixed on the shaft of the AC servo motor (4), and the wheel speed sensor (6) and the ring gear (5) are fixed on the AC servo motor ( 4) on; thus the industrial computer (1) can control the operation of the AC servo motor (4).

[0013] The tested system (20) includes ABS ECU (El...

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Abstract

The invention relates to a hydraulic pressure ABS test stand based on wheel speed closed loop analog, which comprises an industrial computer, a wheel speed generation device, a tested system, a pressure source, a deflation system, a braking system and a data collection system. Test software operated by the industrial computer comprises a whole vehicle model, a tire model, a road model, a braker model, data processing, wheel speed real-time control and a human-computer operation interface; the wheel speed generation device is composed of a motion controller, an AC (alternating current) servo motor driver, an AC servo motor and a gear ring; the deflation system is composed of an electromagnetic valve; the pressure source is composed of a hydraulic station and an oil cylinder; and the braking system is composed of a brake master cylinder, a wheel braking cylinder and a pressure sensor. The test stand can carry out a performance test to an ABS controller, a pressure regulator and a wheel speed sensor through two proposals of closed loop and open loop, and also can carry out an intensified test to the whole ABS system so as to check the reliability thereof. The test stand is applicable to ABS research and development process and also can be used for the production of ABS test equipment in batches.

Description

technical field [0001] The invention relates to a hydraulic ABS test bench based on wheel speed closed-loop simulation, which can be applied to automobile hydraulic ABS testing, and can detect hydraulic ABS system control logic, fatigue life, performance and reliability. Background technique [0002] ABS (Anti-lock Brake System) can control the slip rate of the wheel within a certain range, and make full use of the adhesion between the tire and the road surface, so as to obtain good directional stability and fast braking. Possibly large stopping power. It has been widely used in passenger cars and commercial vehicles, and the loading rate has increased significantly year by year. The failure of the ABS system itself will lead to huge property losses and even personal injuries. Therefore, how to effectively detect the ABS system has become a problem that many researchers and manufacturers attach great importance to. [0003] At present, there are mainly two kinds of detecti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/007G01L5/28B60T17/22
Inventor 余贵珍丁能根陈默然吴胜王伟达冯冲
Owner BEIHANG UNIV
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