Vehicle Yaw Dynamics Safety Analysis Methodology based on ISO-26262 Controllability Classification

可控性 车辆动力学 汽车工程 计算机科学 车辆安全 动力学(音乐) 功能安全 控制工程 工程类 可靠性工程 物理 数学 应用数学 声学
作者
Scott paik,Hossam Almasri,Neelakanta Rao Medidha,Anthony J. Capobianco,Andrew Evans,Yvette Sevillano
出处
期刊:SAE technical paper series
标识
DOI:10.4271/2024-01-2766
摘要

<div class="section abstract"><div class="htmlview paragraph">Complex chassis systems operate in various environments such as low-mu surfaces and highly dynamic maneuvers. The existing metrics for lateral motion hazard by Neukum [<span class="xref">13</span>] and Amberkar [<span class="xref">17</span>] have been developed and correlated to driver behavior against disturbances on straight line driving on a dry surface, but do not cover low-mu surfaces and dynamic driving scenarios which include both linear and nonlinear region of vehicle operation. As a result, an improved methodology for evaluating vehicle yaw dynamics is needed for safety analysis.</div><div class="htmlview paragraph">Vehicle yaw dynamics safety analysis is a methodical evaluation of the overall vehicle controllability with respect to its yaw motion and change of handling characteristic. The yaw dynamics safety analysis is crucial for understanding how a driver-vehicle system responds to disturbances (external forces such as failure modes) in various driving scenarios and maneuvers., and it plays a significant role in evaluating the overall safety and performance of vehicles.</div><div class="htmlview paragraph">In this paper, we are proposing a methodology for evaluating and performing vehicle yaw dynamics safety analysis, which considers definition of test maneuvers based on exposure, driver behavior model for assessment of controllability, and combining them to apply ISO-26262 approach to determine risk.</div></div>
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