Sensor malfunction detecting system in vehicle control system

摘要

In the sensor malfunction detecting system, if an absolute value of a difference between acceleration obtained from outputs of a pressure sensor and an acceleration sensor read (in steps S1 and S5) is determined to be out of a range of a prescribed value DELTA G1 in said S7, a count value T1 is incremented by "1" (in step S13). The above described operation is repeated until the count value T1 exceeds a prescribed target value T alpha (in step S15). If the count value T1 exceeds a prescribed target value T alpha (in step S15), either of the sensors is determined to be malfunctioning (in step S17), and a sensor malfunction signal is output. Accordingly, failure of a vehicle control system controlling breaking force, for example, based on the output from the sensors can be prevented, which leads to improved safety during driving. Further, a sensor malfunction detecting system can be provided at a low cost.