Suspension system for automotive vehicle
First Claim
1. A suspension system for an automotive vehicle, comprising:
- a cylinder unit interposed independently and separately between a vehicle body and each of the wheels so as to adjust a vehicle height of the vehicle body in accordance with supply or discharge of operating fluid;
flow rate adjusting means for supplying or discharging the operating fluid to or from the cylinder unit;
roll controlling means for generating a control value to the flow rate adjusting means so as to allow an actual angle of a roll of the vehicle body to agree with a target angle of the roll of the vehicle body;
inner-pressure detecting means for detecting an inner pressure of the cylinder unit;
cornering detecting means for detecting cornering of the automotive vehicle; and
correcting means for correcting the control value so as to make a quantity of the operating fluid to be supplied or to be discharged become smaller as the inner pressure detected by the inner pressure detecting means becomes larger, when the cornering of the automotive vehicle is detected by the cornering detecting means.
1 Assignment
0 Petitions
Accused Products
Abstract
A cylinder unit for adjusting a vehicle height of the vehicle body is interposed separately or independently between the vehicle body and each wheel. The supply and discharge of the operating fluid to and from each of the cylinder units is performed by generating a control signal indicative of the quantity of supplying and discharging the operating fluid to and from the flow rate adjusting valves. The control signal is determined so as to allow an actual angle of a roll of the vehicle body to agree with a target angle of the roll thereof. When the automotive vehicle is cornering, particularly rapidly, the control signal is corrected in such a manner that the larger the inner pressure of the cylinder unit, the smaller the quantity of the operating fluid to be supplied or to be discharged. Specifically, the correction is made so as to minimize the quantity of the operating fluid to be supplied to or to be discharged from the cylinder unit on the outer wheel side upon cornering, which has a higher inner pressure, and to maximize the quantity of the operating fluid to be supplied to or to be discharged from the cylinder unit on the inner wheel side upon cornering, which has a lower inner pressure.
-
Citations
18 Claims
-
1. A suspension system for an automotive vehicle, comprising:
-
a cylinder unit interposed independently and separately between a vehicle body and each of the wheels so as to adjust a vehicle height of the vehicle body in accordance with supply or discharge of operating fluid; flow rate adjusting means for supplying or discharging the operating fluid to or from the cylinder unit; roll controlling means for generating a control value to the flow rate adjusting means so as to allow an actual angle of a roll of the vehicle body to agree with a target angle of the roll of the vehicle body; inner-pressure detecting means for detecting an inner pressure of the cylinder unit; cornering detecting means for detecting cornering of the automotive vehicle; and correcting means for correcting the control value so as to make a quantity of the operating fluid to be supplied or to be discharged become smaller as the inner pressure detected by the inner pressure detecting means becomes larger, when the cornering of the automotive vehicle is detected by the cornering detecting means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
Specification