Zhu, Zhongwen (CATARC), Ma, Qilong (Hefei University of Technology), Tong, Qiang (Tianjin University), Li, Cheng (School of Automotive and Transportation Engineering, Hefei Unive), Wang, Weizhi (Hefei University of Technology), Jiang, Weihai (Hefei University of Technology)

Design of Three-Layer Torque Monitoring Software Architecture for Vehicle Controller Unit

Scheduled for presentation during the Invited session "Advanced Control Technologies for Electromechanical System" (FrA4), Friday, November 1, 2024, 08:50−09:10, Room T4

7th IFAC Conference on Engine and Powertrain Control, Simulation and Modeling, Oct 30 - Nov 1, 2024, Dalian, China

This information is tentative and subject to change. Compiled on January 2, 2025

Abstract

This paper addresses the issue of unexpected torque output anomalies in the vehicle control unit and explores functional safety design at the software level. Firstly, by referencing the ISO 26262 standard, an analysis of the functional safety of VCU torque control is conducted to determine safety goals and automotive safety integrity levels. This analysis leads to the derivation of functional safety requirements and technical safety requirements. Then a three-layer system architecture based on the EGAS framework for VCU torque control functionality is designed. Secondly, the technical safety requirements are refined into software safety requirements, culminating in the development of a three-layer monitoring software architecture. Finally, dynamic code analysis is conducted to enhance code coverage through optimization and testing.