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A new test method for esp/abs accumulator test device

A test device and test method technology, which is applied in the automotive field, can solve the problems of low accuracy of test results, inability to predict in advance, failure of accumulators, etc., and achieve the effects of shortening the test cycle, reducing the risk of failure, and reducing complexity

Active Publication Date: 2015-12-23
WANXIANG QIANCHAO SHANGHAI AUTOMOTIVE SYST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • A new test method for esp/abs accumulator test device
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  • A new test method for esp/abs accumulator test device

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Embodiment Construction

[0044] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0045] The novel ESP / ABS accumulator testing device of the present invention includes the ESP / ABS to-be-tested piece in the test circuit, and the test circuit includes a hydraulic steel cylinder connected to a reciprocating device, a proportional valve, a pressure sensor, a displacement sensor and an industrial computer and other components, the reciprocating device is composed of a pneumatic triple piece, a reversing valve, a cylinder and a brake master cylinder to provide pressure boosting / decompression of the brake fluid pressure in the test circuit; the hydraulic cylinder is placed in the brake master cylinder and the ESP / ABS standby Between the test pieces, it is used to adjust the hydraulic stiffness of the test circuit; the proportional valve is placed in front of the reversing valve to control the inlet pressure into the cylinder; the pressure se...

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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 testing device in the field of automobiles, in particular to a testing method of a novel ESP / ABS accumulator testing device. Background technique: [0002] ESP (Electronic Stability Program Electronic Stability System) is a part of the vehicle's active safety system and is an anti-skid software; ABS (Anti-locked Braking System Anti-lock Braking System) is a car safety control with advantages such as anti-skid and anti-lock 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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M17/007
Inventor 苏干厅陈刚阎平
Owner WANXIANG QIANCHAO SHANGHAI AUTOMOTIVE SYST
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