Gm Global Technolgoy Operations, Inc.

Michael L Bailey

Brian D Christoff

John K Dagg

Scott A Kolp

A force-feedback assembly includes a first shaft with a shaft end. The first shaft is movable between a shaft first position and a shaft second position. The force-feedback assembly also includes a compliant element arranged to exert a return force on the first shaft and bias the first shaft toward the shaft first position. The force-feedback assembly additionally includes a ramp in sliding engagement with the shaft end. The force-feedback assembly further includes an operator input device operatively coupled to the ramp. The operator input device has a device first position and a device second position. Moving the operator input device from the device first position to the device second position slides the ramp relative to the shaft end and moves the first shaft from the shaft first position to the shaft second position.

Spring-based force-feedback device

An automatically variable vehicle ground clearance for motor vehicles with semi-elliptical spring suspensions. A drive member is placed at each wheel corner to be height adjusted, the drive member being motor driven. An operator may select a height preference by operation of a switch, or a controller may provide a range of height selections based upon an algorithm which is responsive to sensed vehicle ride conditions, as for example vehicle speed, to optimize vehicle performance.

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Troy, MI, United States of America

Michael L Bailey