METHOD FOR DIAGNOSING TROUBLE OF STEERING SENSOR IN VEHICLE ACCORDING TO SIGNALS DETECTED BY STEERING SENSOR AND VERTICAL ACCELERATION SENSOR

摘要

PURPOSE: A diagnosing method for trouble of a vehicle steering sensor is provided to precisely determine the trouble of a steering sensor according to signals detected by the steering sensor and a vertical acceleration sensor. CONSTITUTION: A diagnosing method for trouble of a vehicle steering sensor includes the steps of checking any changes of first and second signals detected by a steering sensor(S120,S122), and measuring an acceleration valve by a vertical acceleration sensor in the absence of the change in the first and second signals(S124). If the value measured by the vertical acceleration sensor falls under the conditions for traffic lane change or vehicle turning, the steering sensor is determined as failed(S126,S128).