System for vehicle body roll control detecting and compensating for changes of loaded vehicle weight
Patent 4765649 Issued on August 23, 1988. Estimated Expiration Date: 
March 16, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
March 16, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesSystem for vehicle body roll control utilizing steering angle detection Patent #: 4693493 InventorsAssigneeApplicationNo. 07/026468 filed on 03/16/1987US Classes:280/5.51, Steering element responsive (e.g., steering angle, steering rate)280/5.506, Controlling lateral vehicle attitude (e.g., antiroll, antisway)280/5.512Including suspension stiffness for ride comfort (e.g., damping coefficient, spring rate)ExaminersPrimary: Love, John J.Assistant: Ferriter, Karin L. Attorney, Agent or FirmInternational ClassesB60G 17/015 (20060101)B60G 17/016 (20060101) Foreign Application Priority Data1986-03-17 JPAbstractIn this system for vehicle roll control, a suspension device or an actuator is provided corresponding to each wheel of a vehicle, and resiliently suspends it from the vehicle body. Each such suspension device can alter its hardness or softness characteristics according to a control signal, while similarly the actuators are adapted to alter the suspended height of their wheels. A vehicle speed detecting device senses road speed, a steering angle detecting device senses steering angle, and a device detects the total vehicle body weight. A computing control device computes a predictive roll angle of the vehicle body from road speed and steering angle, and: if suspension devices are provided, controls them to be relatively hard when the absolute value of the predictive roll angle is larger than a threshold value, while controlling them to be relatively soft when the absolute value of the predictive roll angle is less than this threshold value; while, if actuators are provided, when the absolute value of the predictive roll angle is larger than a threshold value, it controls them in accordance with this predictive roll angle. Particularly, this computing device varies the threshold roll angle value according to the total vehicle body weight as detected by the weight detector, so as to decrease the threshold roll angle value along with increase of the total vehicle body weight.Other References
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