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VEHICLE SUSPENSION SYSTEM

  • US 20090001679A1
  • Filed: 06/26/2008
  • Published: 01/01/2009
  • Est. Priority Date: 06/27/2007
  • Status: Active Grant
First Claim
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1. A suspension system for a vehicle, comprising:

  • (a) four displacement force generators provided for respective four wheels of the vehicle, each of said four displacement force generators having an electromagnetic motor and configured to generate, based on a motor force generated by said electromagnetic motor, a displacement force forcing sprung and unsprung portions of the vehicle to be displaced toward or away from each other; and

    (b) a controller configured to control the displacement force generated by each of said four displacement force generators, by controlling operation of said electromagnetic motor of said each of said four displacement force generators,wherein said controller includes (b-1) a target-value determining portion configured to determine a target value of a displacement-force-relating amount of each of said four displacement force generators, which relates to the displacement force that is to be generated by said each of said four displacement force generators, and (b-2) a target-value reducing portion configured to reduce the target value of the displacement-force-relating amount of a subjected device as one of said four displacement force generators, in accordance with a certain rule,and wherein said target-value reducing portion is configured to reduce the target value of the displacement-force-relating amount of each of at least one of non-subjected devices as the other three of said four displacement force generators, in accordance with said certain rule, when reducing the target value of the displacement-force-relating amount of said subjected device in accordance with said certain rule.

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