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An ESC-based automobile braking system and its test method

An automobile brake system, test and test technology, applied in the field of automobile manufacturing, can solve the problems of low overall efficiency, heavy workload, low success rate, etc., to improve work efficiency, reduce test cost, reduce workload and work intensity Effect

Active Publication Date: 2017-01-18
WUHU BETHEL AUTOMOTIVE SAFETY SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The existing technology adopted at this stage has many disadvantages: the success rate is low; the consistency of the test cannot be guaranteed, resulting in large errors in the test results; at the same time, the requirements for the experience of the test personnel are also very high; the labor intensity of the test personnel is high and the work Large volume, low overall efficiency

Method used

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  • An ESC-based automobile braking system and its test method
  • An ESC-based automobile braking system and its test method
  • An ESC-based automobile braking system and its test method

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Embodiment Construction

[0044] The specific implementation of the present invention will be described in further detail below by describing the embodiments with reference to the accompanying drawings, so as to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concepts and technical solutions of the present invention.

[0045] Such as figure 1 The structure of the present invention expressed is a car brake system based on ESC (electronic stability control system), including master cylinder MC1, master cylinder MC2, master cylinder pressure sensor 9; also includes four wheel cylinders, namely the left Wheel cylinders for front wheel, right rear wheel, left rear wheel and right front wheel.

[0046] In order to solve the problems existing in the prior art and overcome its defects, realize the purpose of the invention of improving the efficiency of the test work and the accuracy of the test results, the technical scheme adopted by the present inventi...

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Abstract

The invention discloses an automobile braking system based on an ESC system and a testing method of the automobile braking system. Through ESC program control, after an ECU is powered on, system initialization is conducted, a preset control command is sent to the ECU, a voltage regulating electromagnetic valve, a normally-closed electromagnetic valve and a normally-open electromagnetic valve are matched for work, and then the active pressurization function is achieved. By the adoption of the technical scheme, through connection to a CAN and computer program control, cost is hardly increased for an automobile with the ESC system, work efficiency and accuracy of the test result are greatly improved, a tester does not need to tread on a brake pedal, and the workload and the work intensity of the tester are reduced; so that the testing cost is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of automobile manufacturing, and relates to the test technology of an automobile brake system, more specifically, the invention relates to an ESC-based automobile brake system. In addition, the present invention also relates to an experimental testing method of the braking system. Background technique [0002] According to the provisions of the national standard GB12676-1999 "Automobile Brake System Structure, Performance and Test Methods", in the O-type, I-type and II-type tests: [0003] 1. There is a reference pedal force requirement with a fixed value for the brake pedal force; [0004] 2. The pedal force is required to act quickly and remain stable during braking; [0005] 3. It is required that the pedal force of repeated tests be consistent. [0006] According to the above requirements, in the prior art, when carrying out the O-type, I-type and II-type tests of real vehicle brakes, pedal force sens...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M17/007
Inventor 张平平张高超潘金鹏王乐甘从伟马永富汤徳东
Owner WUHU BETHEL AUTOMOTIVE SAFETY SYST