Novel device and novel method for testing ESP/ABS (Electronic Stability Program/Anti-lock Brake System) energy accumulator

Abstract

The invention relates to a test device in the field of automobiles and aims at providing a novel device and a novel method for testing an ESP/ABS (Electronic Stability Program/Anti-lock Brake System) energy accumulator. The device comprises an ESP/ABS to-be-tested piece positioned in a test loop, wherein the test loop comprises a hydraulic steel cylinder connected with a reciprocating apparatus, a proportional valve, a pressure sensor, a displacement sensor and an industrial personal computer. According to the device and the method, an assembly is not required to serve as a test piece, equipment required for test is simplified or omitted by virtue of a pneumatic control liquid, and the increase/decrease of the hydraulic pressure of an automobile brake loop can be simulated, so that the test environment and actual use operating condition of the ESP/ABS to-be-tested piece are more approximate. According to the device and the method, by virtue of performing the PV performance curve and endurance test of the energy accumulator, the performance of the ESP/ABS energy accumulator is directly, accurately and rapidly tested, and the failure risk can be predicated in advance and reduced.

Description

technical field [0001] The invention relates to a test device in the field of automobiles, in particular to a novel ESP / ABS accumulator test device and method. Background technique: [0002] ESP (Electronic Stability Program Electronic Stability System) is a part of the active safety system of the vehicle, which is a kind of anti-skid software; ABS (Anti-locked Braking System) is a kind of anti-skid, anti-lock brake Automobile safety control system. ESP / ABS (Automotive Electronic Stability System / Automobile Anti-lock Braking System) as an anti-skid / anti-lock braking device that improves vehicle stability greatly improves the safety of driving. The accumulator is an important part of the device, and it is a mechanism for pressure relief and back pressure when ESP / ABS is working. The pressure relief performance of the accumulator directly affects the decompression efficiency of ESP / ABS, and also affects the drop rate of the brake fluid pressure of the automobile wheel, wheth...

AI Technical Summary

Problems solved by technology

[0010] The present invention adopts the test device and method of the accumulator, aiming to solve the problems that the accumulator may fail in the ESP / ABS development process and cannot be predicted in advance, the accuracy of the test result is not high, the test is difficult, etc., and the test process can be simplified at the same time , improve test efficiency and test data accuracy

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