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Comprehensive test bench for electronic parking brake system

An electronic parking brake, comprehensive testing technology, applied in vehicle testing, machine/structural component testing, measuring devices, etc., can solve the problem of inability to troubleshoot function debugging and testing, prolonged EPB development cycle, and inability to guarantee drivers Safety and other issues, to achieve the effects of low test efficiency, reduced manpower, and high development costs

Inactive Publication Date: 2010-09-01
WUHU BETHEL AUTOMOTIVE SAFETY SYST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The technical problem to be solved by the technical solution provided by the present invention is that, in the field of EPB controller test technology, the test method in the prior art is adopted, which leads to greatly extended EPB development cycle, time-consuming and laborious, low test efficiency and high development cost; To ensure the safety of the driver, it is impossible to debug and test the system's fault handling function and other technical problems, but to provide a comprehensive test bench for the electronic parking brake system

Method used

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  • Comprehensive test bench for electronic parking brake system
  • Comprehensive test bench for electronic parking brake system
  • Comprehensive test bench for electronic parking brake system

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Embodiment Construction

[0027] Such as Figure 1-3 Shown, a kind of integrated test bench for electronic parking brake (EPB) system provided by the present invention, it is by computer 1, data acquisition card 2, high-speed CAN card 3, hardware interface circuit 5, fault setting circuit 4 , a pressure sensor 8, an EPB controller to be tested 6, and an EPB actuator to be tested 7. The test bench has the functions of fault test, EPB controller 6 off-line test, and EPB actuator 7 off-line test. When working, the software selects the function to use, and then the computer 1 sends a test command to the EPB controller 6, so that the EPB controller 6 enters the test mode, execute the corresponding test, and form a feedback loop through the pressure sensor 8, high-speed CAN and hardware interface circuit 5. The test result is obtained by comparing the data returned by the EPB controller 6 with the data collected by the computer 1 .

[0028] Described computer 1 comprises fault emulation test module 9, ECU ...

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Abstract

The invention discloses a comprehensive test bench for an electronic parking brake (EPB) system, which consists of a computer, a data acquisition card, a high-speed CAN card, a hardware interface circuit, a fault setting circuit, a pressure sensor, an EPB controller to be tested and an EPB actuating mechanism to be tested. Use functions are chosen by software; the computer sends a test instruction to the EPB controller, so that the EPB controller enters a test mode to receive a corresponding test; and the pressure sensor, the high-speed CAN card and the hardware interface circuit form a feedback loop. The comprehensive test bench can effectively solve the problems of long EPB development cycle, time waste and energy waste, low test efficiency and high development cost and the problem that the safety of a driver cannot be guaranteed and the problem that the fault processing function of the system cannot be debugged and tested and the like; and meanwhile, the comprehensive test bench has an automatic test function and is simple and convenient.

Description

technical field [0001] The invention belongs to the technical field of testing the electronic parking brake system of motor vehicles, and in particular relates to a comprehensive test bench for the electronic parking brake system in the vehicle brake system. Background technique [0002] Electronic parking brake system (EPB: Electrical Park Brake), commonly known as electronic brake, is a new technology used to replace the traditional mechanical manual parking brake system. The EPB system is mainly composed of EPB actuators and EPB controllers equipped with motors, reduction transmission mechanisms, left and right rear brake calipers. When the parking button is pressed, the EPB controller controls the left and right actuator motors to rotate, and pushes the brake caliper piston to tighten the brake disc to complete parking. When the release button is pressed, the EPB controller controls the rotation of the left and right motors, driving the piston of the brake caliper to re...

Claims

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Application Information

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IPC IPC(8): G01M17/007G01L5/28
Inventor 刘兆勇顾勤冬王国海杨丙辉
Owner WUHU BETHEL AUTOMOTIVE SAFETY SYST
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