Air suspension control
AssigneeRivian IP Holdings, LLC
InventorsThomas Frederick Abdallah, Mark George Milne, Jay Dixit, Derrick Michael Tan
Life of this patent
Estimating the term…
Abstract
Methods and systems are provided for a vehicle suspension system. In some example methods, a height change request is received for a vehicle suspension having a displacement control for implementing height change requests. A displacement of at least one spring of the vehicle suspension may be determined, as well as whether the displacement satisfies a displacement control criteria. The height of the vehicle suspension may be changed using an air mass control in response to determining the displacement control criteria is not satisfied.
Claims20
A method, comprising:
- receiving a height change request for a vehicle suspension having a displacement control for implementing height change requests;
- determining a displacement of at least one spring of the vehicle suspension;
- determining whether the displacement satisfies a displacement control criteria;
- and
- in response to determining the displacement control criteria is not satisfied, changing the height of the vehicle suspension using an air mass control.
A method, comprising:
- receiving a height change request for a vehicle suspension;
- determining a displacement of at least one spring of the vehicle suspension;
- determining whether the displacement satisfies a displacement control criteria;
- selecting a height control method for implementing the height change in response to the height change request from a displacement control and an air mass control, wherein for the displacement control, air is added to or removed from one or more air springs of the vehicle suspension based on a target displacement of the one or more air springs, and wherein for air mass control, air is added to or removed from the one or more air springs of the vehicle suspension based on a target air mass of the one or more air springs, wherein the air mass control is selected based on determining the displacement control criteria is not satisfied;
- and
- changing a height of the vehicle suspension using the selected height control.
A suspension system for a vehicle, comprising:
- a controller configured to:
- receive a height change request for a vehicle suspension having a displacement control for implementing height change requests;
- determine a displacement of at least one spring of the vehicle suspension;
- and
- determine whether the displacement satisfies a displacement control criteria;
- and
- based on determining the displacement control criteria is not satisfied, change the height of the vehicle suspension using an air mass control.
Dependencies are inferred from the claim text.