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

山东科学 ›› 2024, Vol. 37 ›› Issue (3): 85-92.doi: 10.3976/j.issn.1002-4026.20230150

基于Simulation X的多轴转向系统功能安全仿真分析

陈志韬¹(), 周怡¹, 刘相新¹^,^*(), 白锦洋¹, 刘洋², 王真真¹

1.北京航天发射技术研究所,北京 100076
2.中信科智联科技(北京)有限公司,北京 100089

收稿日期:2023-10-10 出版日期:2024-06-20 发布日期:2024-06-14
通信作者: *刘相新,男,研究员,研究方向为发射装备、多轴电驱底盘等。Tel:13552317011,E-mail: xiangxin328@126.com
作者简介:陈志韬(1990—),男,硕士,工程师,研究方向为智能驾驶、多轴电驱底盘等。E-mail: chenzt0306@163.com

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

CHEN Zhitao¹(), ZHOU Yi¹, LIU Xiangxin¹^,^*(), BAI Jinyang¹, LIU Yang², WANG Zhenzhen¹

1. Beijing Institute of Space Launch Technology, Beijing 100076, China
2. CICT Connected and Intelligent Technologies Co.,Ltd., Beijing 100089, China

Received:2023-10-10 Online:2024-06-20 Published:2024-06-14

摘要/Abstract

摘要：

基于ISO 26262《道路车辆功能安全》的标准要求,对特种车的多轴电液转向系统进行分析,以提高系统的安全性和可靠性。运用Simulation X软件建立详细的多轴特种车仿真模型,通过模拟故障模式注入进行仿真试验。对仿真结果和数据进行分析,评估得到故障的严重性、暴露度和可控性,从而确定相应的汽车安全完整性等级。基于故障注入仿真的汽车功能安全分析方法,在系统早期设计阶段可以作为评估架构安全性的重要手段。

关键词: 多轴车, 电液转向系统, Simulation X, 故障注入仿真, 汽车安全完整性等级

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

中图分类号:

U461.91

陈志韬, 周怡, 刘相新, 白锦洋, 刘洋, 王真真. 基于Simulation X的多轴转向系统功能安全仿真分析[J]. 山东科学, 2024, 37(3): 85-92.

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.

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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

基于Simulation X的多轴转向系统功能安全仿真分析

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

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