Design and Safety Analysis of a Drive-by-Wire Vehicle
Design and Safety Analysis of a Drive-by-Wire Vehicle
复制标题
线控车辆的设计与安全分析
DOI：
10.1007/978-3-642-36455-6_8
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发表时间：
2013
期刊：
影响因子：
2.7
通讯作者：
Peter Bergmiller
中科院分区：
文献类型：
--
作者：
Peter Bergmiller
介绍了一种模块化的和灵活的实验车的研究新的车辆电子。该实验车采用四轮驱动，四轮转向和电动制动。每个轮子都可以单独驱动。所有的执行机构都是由电线控制的，没有机械或液压后备层。为了在最顶层的功能层（“车辆层”）上评估实验车辆的安全性，引入了一种新的有针对性的安全性分析方法。该方法特别针对在不同致动单元之间具有高度功能冗余以及驾驶功能（如转向或制动）的强集成的线控车辆。为了证明，根据ISO 26262在明确定义的环境中对实验车辆的操作进行了简化的危险分析。研究结果为采用该方法对车辆进行安全性评价提供了依据。
The contribution introduces a modular and flexible experimental vehicle for investigation of novel vehicle electronics. The experimental vehicle features 4-wheel-drive, 4-wheel-steering and electric brakes. Each wheel can be actuated individually. All actuators are controlled by-wire without mechanical or hydraulic fall-back layer. To evaluate the safety of the experimental vehicle on the topmost functional layer (“vehicle layer”), a novel approach for targeted safety analysis is introduced. The approach especially aims at by-wire vehicles with a high degree of functional redundancy between different actuation units and strong integration of driving functionalities as steering or braking. For demonstration, the results of a simplified hazard analysis according to ISO 26262 for operation of the experimental vehicle in a well defined environment are presented. The results serve as a basis for safety evaluation of the vehicle using the introduced approach.