VEHICLE WEIGHT RESPONDING TYPE POWER STEERING DEVICE

摘要

A timer time T is obtained by operating timer from a time t1 when a detected vehicle speed obtained by a vehicle speed signal S1 becomes 0 to a time t6 when a vehicle speed exceeds 0. The value of an axle load signal S1 is temporarily held from a time t2 when X hours have passed since t1. When the timer time T is greater than a set timer time T0, an axle load signal S1 at a time t5 which is Y hours before t6 is read. The valve opening of a control valve is adjusted based on this read value so as to vary the assisting force, whereby even if there is generated vehicle body vibrations during the running of the vehicle, the asssisting force of the power steering device can be maintained constant to thereby improve the steering feeling.