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案例1 HSR伺服单元故障故障现象一辆2010年产宝马740Li(车型为F02),行驶了1万km,在正常的直线行驶中转向盘突然变歪(旋转了一个角度),仪表板的转向盘图标和行驶控制系统报警灯(黄色)点亮,并显示“行驶控制系统失效”的报警提示,中央显示屏显示“底盘控制系统失效”的报警提示,此时汽车不能进行稳定性调节,其转向性能和行车舒适性受到影响。故障诊断接车后试车,证实了该车的故障现象,在汽车行驶中,为了保持直线行驶,必须把转向盘向左转动30°角
Case 1 HSR servo unit failure Symptom A 2010 BMW 740Li (model F02), traveling 10,000 km, in a normal straight line steering wheel suddenly crooked (rotated by an angle), the dashboard steering wheel The icon and driving control system warning light (yellow) illuminates and a warning message “Drive control system failure” is displayed. The central display shows an alarm “Chassis control system failure” when the vehicle is not stable Regulation, steering performance and driving comfort are affected. Troubleshooting after the car to test the car, confirmed the car’s failure phenomenon, in the car driving, in order to maintain a straight line, you must turn the steering wheel to the left 30 ° angle