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    • 1. 发明授权
    • Methods and systems for compensating for common failures in fail operational systems
    • 用于补偿故障操作系统中常见故障的方法和系统
    • US09195232B1
    • 2015-11-24
    • US14172906
    • 2014-02-05
    • Google Inc.
    • Daniel Trawick EgnorAlexander ZbrozekAndrew Schultz
    • G01C22/00G05D1/00
    • G05D1/0077B60W10/184B60W10/20B60W50/023G05D1/0055G05D2201/0213
    • Methods and systems for compensating for common failures in fail operational systems are described herein. An example system may include a primary controller configured to perform functions of a vehicle such as propulsion, braking and steering and a secondary controller configured in a redundant configuration with the primary controller. The controllers may perform cross-checks of each other and may each perform internal self-checks as well. Additionally, the system may include a control module configured to transfer control of the vehicle between the controllers based on detecting a fault. The control module may detect a common fault of the controllers that causes the control module to output a common fault signal. In response, the system may transfer of control to a safety controller configured to perform the vehicle functions until the system may transfer control back to the primary controller.
    • 本文描述了用于补偿故障操作系统中的常见故障的方法和系统。 示例系统可以包括被配置为执行诸如推进,制动和转向的车辆的功能的主控制器以及以主控制器配置为冗余配置的次控制器。 控制器可以执行彼此的交叉检查,并且每个控制器也可以执行内部自检。 另外,该系统可以包括控制模块,该控制模块被配置为基于检测故障来在控制器之间传送车辆的控制。 控制模块可以检测使控制模块输出公共故障信号的控制器的常见故障。 作为响应,系统可以将控制转移到被配置为执行车辆功能的安全控制器,直到系统可以将控制传回主控制器。