| 摘要 |
PURPOSE:To improve the reliability in the anomaly judgement by avoiding the erroneous judgement for anomaly of a car speed sensor due to the operation of a traction controller by regulating the anomaly judgement for the car speed sensor when the operation of the traction controller is detected. CONSTITUTION:A car speed sensor 48 detects the car speed on the basis of the revolution of a member which revolves together with driving wheels 20RL and 20RR. A traction controller 26 operates when slip is generated on a driving wheel, and lowers the number of revolution the driving wheel so that the slip rate is set within a prescribed range. As for a vehicle which is thus constituted, if the previously set condition is fulfilled, the anomaly of the car speed sensor is judged by an anomaly judging means on the basis of the output of the car speed sensor. Further, the operation of the traction controller is detected by a traction controller operation detecting means. Further, when the traction controller operates, the anomaly judgement for the car speed sensor by the anomaly judging means is regulated by am anomaly judgement requiting means. |
