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Vehicle roll control

  • US 6,752,401 B2
  • Filed: 04/11/2003
  • Issued: 06/22/2004
  • Est. Priority Date: 09/29/1998
  • Status: Expired due to Term
First Claim
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1. A vehicle suspension system comprising a roll controller for controlling the roll stiffness of the vehicle, a roughness sensing system for measuring the roughness of a surface over which the vehicle is traveling, and a vehicle speed sensor for measuring the speed of the vehicle wherein the roll controller is arranged to combine the outputs from the roughness sensing system and the speed sensor to produce an integral over time which will increase in response to an increase in road roughness but decrease in response to increasing vehicle speed, and to increase the roll stiffness of the vehicle in response to a decrease in the integral, but decrease the roll stiffness in response to an increase in the integral.

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