Patent ID: 6259982
Filing Date: 2001-07-10
Classification: B60G

Abstract:
An apparatus for controlling a vehicle suspension having a sprung mass and an unsprung mass, said apparatus comprising:a plurality of actuators, each corner of the vehicle having an associated actuator operatively connecting the sprung mass with its associated unsprung mass;means for sensing at least one operating characteristic of a selected corner;means for providing a desired actuator drive signal in response to said at least one sensed operating characteristic for achieving a desired operating characteristic for the selected corner;means for determining the difference between said at least one sensed operating characteristic and the desired operating characteristic for the selected corner;control means responsive to said determined difference for providing an actuator control signal having a value functionally related to said difference, said control means having a variable gain amplifier means for outputting said actuator control signal, wherein the gain of said variable gain amplifier means is controlled in response to a frequency of variations of said determined difference; andactuator control means for driving said actuator in response to said actuator control signal.