Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Vehicle subsystem or accessory control
Patent
1996-09-06
1999-09-07
Mojica, Lissi
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Vehicle subsystem or accessory control
701 38, 280 5506, 280 5507, 280 551, B60G 17015
Patent
active
059480270
ABSTRACT:
A method of enhancing vehicle stability and response in a vehicle having an active roll control system with front and rear suspensions each including an anti-roll bar, and the control system including a hydraulic system for providing an anti-roll moment which acts on the vehicle by means of hydraulic cylinders connected to the anti-roll bars, includes the following steps: a) determining the vehicle speed; b) determining the steering wheel angle; c) calculating the desired vehicle yaw rate based upon the determined speed and steering wheel angle; d) sensing the actual yaw rate; e) comparing the desired yaw rate to the actual yaw rate; f) increasing the percentage of the anti-roll moment provided to the rear anti-roll bar if the actual yaw rate is less than the desired yaw rate, thereby decreasing understeer, increasing yaw rate, and enhancing vehicle response; and g) increasing the percentage of the anti-roll moment provided to the front anti-roll bar if the actual yaw rate is greater than the desired yaw rate, thereby increasing understeer, decreasing yaw rate, and enhancing vehicle stability. The anti-roll moment distribution is further adjusted for steering precision enhancement.
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Ferrari Steven John
Goran Michael Barry
Oliver, Jr. John Allen
Brown Gregory P.
Ford Global Technologies Inc.
May Roger L.
Mojica Lissi
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