Sensor malfunction detecting system in vehicle control system

Details Sensor malfunction detecting system in vehicle control system Sensor malfunction detecting system in vehicle control system

1996-04-17

1997-09-30

Butler, Douglas C.

Fluid-pressure and analogous brake systems

Speed-controlled

With failure responsive means

303166, 30312209, 303191, 303DIG4, B60T 810

Patent

active

056719817

ABSTRACT:
In a sensor malfunction detecting system, if an absolute value of a difference between acceleration values obtained from outputs of at least two of a pressure sensor a torque sensor, and a speed sensor, and an acceleration sensor is determined to be out of a range of a corresponding prescribed value then a corresponding count value is incremented by "1". The above described operation is repeated until the count value exceeds a prescribed target value whereupon it is determined that one of the sensors is malfunctioning, and a sensor malfunction signal is output. Accordingly, failure of a vehicle control system which controls braking 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.

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