电气化、互联化、共享化、智能化是汽车工业未来发展的必然趋势。驱动电机控制器作为车辆动力系统的关键组成部分，是一种重要的安全相关的电子控制单元，若其不能按预期运行，可能导致严重的整车事故。文章依据 ISO 26262 标准，采用功率级半实物仿真系统平台，从功能安全角度出发，开发了多种针对控制器的测试用例和测试场景，并对转速传感器异常、电机温度信号异常、控制器局域网(CAN)总线故障及逆变器过/欠压等情况进行了详细分析和研究。研究为驱动电机控制器的功能安全测试验证提供了有效的方法。
Research on System-Level Functional Safety Test Method of Drive Motor
Electrification,interconnection,sharing and intelligence are the inevitable trends shaping the future of the automobile industry.As a crucial component of the vehicle power system,the electric motor control unit or inverter plays a significant role in ensuring safety.If the MCU malfunctions,it can lead to serious vehicle accidents.Therefore,based on the ISO 26262 standard,this paper utilizes a power hardware-in-the-loop test platform to develop various test cases and scenarios for testing and verifying the controller from a functional safety perspective.Detailed analysis and research are conducted on issues including speed sensor anomalies,motor temperature signal abnormalities,controller area network(CAN)bus failures,and inverter over/under voltage.The findings provide a robust method for verifying the functional safety of the controller.
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