Active suspension damping
AssigneeRivian IP Holdings, LLC
InventorsDerrick Michael Tan, Luke Lynch
Life of this patent
Estimating the term…
Abstract
Example illustrations are directed to a damping system for a vehicle suspension that includes a controller configured to determine a roughness of a ground surface associated with the vehicle. The controller is also configured to determine a damper setting for the damping system based on the determined roughness. A method is also provided that includes determining, using a controller, a roughness of a ground surface associated with the vehicle. The method may further include determining, using the controller, a damper setting of the vehicle based on the determined roughness.
Claims20
A damping system for suspension of a vehicle, comprising:
- a controller configured to:
- determine a corner height error based on a difference between an actual corner height and an expected corner height;
- apply a filter to the corner height error to generate a filtered corner height error, wherein the filter is based on a speed of the vehicle;
- determine a roughness of a ground surface associated with the vehicle based on the filtered corner height error;
- and
- determine a damper setting for the damping system based on the determined roughness.
A method, comprising:
- determining, using a controller, a corner height error based on a difference between an actual corner height and an expected corner height of a vehicle;
- applying, using the controller, a filter to the corner height error to generate a filtered corner height error, wherein the filter is based on a speed of the vehicle;
- determining, using the controller, a roughness of a ground surface associated with the vehicle based on the filtered corner height error;
- and
- determining, using the controller, a damper setting of the vehicle based on the determined roughness.
A non-transitory computer-readable medium having non-transitory computer-readable instructions encoded thereon that, when executed by a processor, cause the processor to:
- determine a corner height error based on a difference between an actual corner height and an expected corner height of a vehicle;
- apply a filter to the corner height error to generate a filtered corner height error, wherein the filter is based on a speed of the vehicle;
- determine a roughness of a ground surface associated with the vehicle based on the filtered corner height error;
- and
- determine a damper setting of the vehicle based on the determined roughness.
Dependencies are inferred from the claim text.