Automobile ABS ECU on-line calibration system and method based on CCP protocol

Abstract

The invention provides an online calibration system for an automobile ABS ECU based on a CCP protocol. The system comprises an upper computer and a lower computer which are interconnected with each other. The upper computer comprises a data storage module, a data analysis module, a control parameter optimization module, a control parameter calibration module and an upper computer command processor CCP; the lower computer is the automobile ABS ECU and comprises an algorithm module and a data communication module. The invention also provides an online calibration method for the automobile ABS ECU based on the CCP protocol. In the method, the CCP protocol is introduced into design of the calibration system of the automobile ABS ECU, which realizes online optimization and modification of control parameters of an ABS; and the control parameters are monitored in a real-time manner by a real-time message processing mechanism of the CCP protocol, which overcomes the problems of hard parameter modification, long development period and poor operability in the existing development methods.

Description

technical field [0001] The invention relates to the technical field of automobile braking control, in particular to a calibration system and a calibration method for an electronic control unit (ABS ECU) of an automobile anti-lock braking system. Background technique [0002] The ABS (Antilock Braking System) braking system, that is, the anti-lock braking system, can automatically adjust the braking force during the braking process of the car, effectively prevent the phenomenon of wheel locking, side slipping, tail flicking, etc., and improve the safety of the car. movement safety. In the development of ABS braking system, when the control algorithm is determined, the quality of the control effect depends on the control parameters in the electronic control unit (Electronic Control Unit, ECU) algorithm. Therefore, the optimization of control parameters is the whole An important part of the debugging process. [0003] Traditional ABS ECU parameter matching generally adopts th...

AI Technical Summary

Problems solved by technology

[0005] (1) poor reliability

SCI serial communication is susceptible to external interference, and software verification is required during the calibration data process, and once the communication is damaged during the test, it is not easy to recover;

[0006] (2) Communication speed is slow

SCI serial communication usually has a transmission speed of 10400bps, which cannot meet the requirements of large data volume and high real-time performance;

[0007] (3) poor versatility

Publication No. CN1747472A discloses a kind of embedded universal calibration device and method based on CCP protocol in the Chinese Invention Patent Application Publication Specification, which roughly describes the general calibration device and method based on CCP protocol. According to the disclosed technical scheme, The calibration of the automotive ABS ECU cannot be realized. In the prior art, there is no calibration method for the automotive ABSECU based on the CCP protocol.

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