Hydraulic suspension control device

A hydraulic suspension system control device comprising:

• a real yaw-rate detecting means for detecting an angular velocity with respect to a vertical axis of a vehicle body;
• a vehicle speed detecting means for detecting vehicle speed;
• a wheel angular detecting means for detecting front wheel angle;
• a target yaw-rate calculating means for calculating a target yaw-rate by comparing signal values from said vehicle speed detecting means and said wheel angular detecting means;
• an electric controller including four driving circuits each of which receives each signal of deviation between said real yaw-rate and said target yaw-rate and a comparator which outputs the same control value signal to each of said driving circuits based on each of said signals of deviation;
• and
• an actuator including a pressure valve and a hydraulic cylinder which are controlled by said controller so as to adjust the suspension system.

A hydraulic suspension system control device comprising:

• a real yaw-rate detecting means for detecting an angular velocity with respect to a vertical axis of a vehicle body;
• a vehicle speed detecting means for detecting vehicle speed;
• a wheel angular detecting means for detecting front wheel angle;
• a target yaw-rate calculating means for calculating a target yaw-rate by comparing signal values from said vehicle speed detecting means and said wheel angular detecting means;
• control means for controlling a deviation between the real yaw-rate and the target yaw-rate so that the deviation between the real yaw-rate and the target yaw-rate is substantially zero, said control means including four driving circuits each of which receives each signal of deviation between said real yaw-rate and said target yaw-rate and a comparator which outputs the same control value signal to each of said driving circuits based on each of said signals of deviation;
• and
• an actuator including a pressure valve and a hydraulic cylinder which are controlled to adjust the suspension system in accordance with a signal from said control means.