基于Simulation X的多轴转向系统功能安全仿真分析

doi:10.3976/j.issn.1002-4026.20230150

Abstract

Abstract:

Based on the standard requirements of ISO 26262 Road Vehicles-Functional Safety, this study analyzes the multiaxle electro-hydraulic steering system of special vehicles to enhance the system's safety and reliability. In this study, the Simulation X software was used to establish a detailed simulation model for the multiaxle special vehicle, and simulation experiments were conducted via fault injection. The simulation results and data were analyzed to assess the severity, exposure and controllability of the faults, thereby determining the corresponding automotive safety integrity level. Thus, based on fault injection simulation, the automotive functional safety analysis method can serve as a crucial means to assess architectural safety in the early stages of system design.

Key words: multiaxle vehicle, electro-hydraulic steering system, Simulation X software, fault injection simulation, automotive safety integrity level

CLC Number:

U461.91

CHEN Zhitao, ZHOU Yi, LIU Xiangxin, BAI Jinyang, LIU Yang, WANG Zhenzhen. Functional safety simulation analysis for multiaxle electro-hydraulic steering system based on Simulation X[J].Shandong Science, 2024, 37(3): 85-92.

Figures/Tables 11

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Table 1

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References 17

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故障工况	故障容错时间/s	最大横摆率/((°)·s^-1)
一桥左转20°	0.34	7.30
三桥左转20°	1.10	0.12
六桥右转20°	0.61	8.20

Functional safety simulation analysis for multiaxle electro-hydraulic steering system based on Simulation X

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