A method and device for evaluating the stability of an automotive electronic control unit

Abstract

The invention provides a method and device for evaluating the stability of an automobile electronic control unit. The method includes: inputting the voltage type and voltage value of the vehicle power supply of the automobile electronic control unit into the automobile electric control unit program, and obtaining the voltage state output by the automobile electronic control unit program; wherein, the automobile electronic control unit program is obtained based on SIMULINK, The voltage state includes voltage undervoltage, voltage normal and voltage overvoltage; if the voltage state is voltage undervoltage or voltage overvoltage, it is determined that the vehicle ECU is unstable. The method and device provided by the embodiments of the present invention obtain the automobile electronic control unit program based on SIMULINK, and determine whether the working state of the automobile electronic control unit is stable by running the automobile electronic control unit program, and design the voltage of the power supply through the SIMULINK model-based design method Diagnose and analyze the model to generate code and compile it into a program, which is suitable for all automotive electronic control unit software control.

Description

technical field [0001] The invention relates to the technical field of automotive electronic control, in particular to a method and device for evaluating the stability of an automotive electronic control unit. Background technique [0002] Automotive electronic control technology is changing with each passing day, and more and more automotive electronic control unit nodes are used in complete vehicles. In the increasingly large and complex vehicle electronic architecture and electrical environment, the stability of the automotive electronic control unit is becoming more and more important. [0003] Reasonable diagnosis and analysis of the power supply voltage is the basic condition to ensure the stability of the automotive electronic control unit. How to reasonably analyze the power supply voltage and realize accurate diagnosis is an urgent expectation and requirement of both OEMs and parts suppliers. [0004] In the prior art, when making a high-end instrument controller ...

AI Technical Summary

Problems solved by technology

Regarding the power supply voltage diagnosis strategy, the high-profile instrument controller needs to be consistent with the low-profile instrument controller. However, during actual communication and analysis, it was found that the diagnostic logic and strategy analysis of the low-profile instrument controller related to power voltage was not in place, which affected the high-profile instrument control. device design

[0005] After systematically understanding the current practices of controllers in the prior art, it is found that they are scattered and inconvenient for unification, cross-platform transplantation and management

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