PURPOSE: To make it possible to wholly secure driving force for the driving wheels of a car at its maximum by detecting an axle load on each driving wheel, and controlling the axle load so that the axle load of the driving wheel having the minimum axle load may be changed to correct the reduction of the driving force of the same car.
CONSTITUTION: A series circuit having a throttle valve 11 and an accumulator 12 is connected to each port 10a of hydraulic cylinders 10 (10FL-10RR) attached to front and rear wheels on both sides, and a hydraulic control circuit for an axle load regulating mechanism is connected to each port 10b of the cylinders 10, and composed of a hydraulic pump 13, a shut-off valve 21 and a pressure control valve 23 (23FL-23RR) corresponding to each hydraulic cylinder 10. In this case, the axle load sensors 27, 28 are provided to detect the axle load on each driving wheel, and their outputs are inputted into a controller 26, and then the axle load on a fixed driving wheel is changed on the detected axle load. Thus the pressure control valve 23 is controlled to increase the axle load on the driving wheel having the minimum axle load.
SUGASAWA FUKASHI
YOKOTE MASATSUGU
IMAZEKI TAKASHI
