Patent ID: 11865887
Assignee: DRIV AUTOMOTIVE INC.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A method of controlling a suspension system of a vehicle, comprising:
connecting a manifold assembly to a plurality of dampers via a plurality of hydraulic circuits and a pump assembly via a pump hydraulic line, the manifold assembly including at least one manifold valve configured to control fluid flow between the pump hydraulic line and the plurality of hydraulic circuits, and the pump assembly including a pump that is arranged in fluid communication with the pump hydraulic line;
setting a target stiffness and a target pressure in a suspension control unit (SCU) of the suspension system;
monitoring real-time data from at least one onboard sensor or system, the real-time data including data reflecting at least one of fluid pressure within at least one of the hydraulic circuits, damper displacement for at least one of the dampers, lateral acceleration of the vehicle, and longitudinal acceleration of the vehicle;
determining an effective stiffness of the suspension system based on the real-time data;
determining if the effective stiffness of the suspension system is above or below the target stiffness;
setting a new target pressure in the suspension control unit (SCU) if the effective stiffness is determined to be above or below the target stiffness by making a stepwise decrease or increase to the target pressure;
opening the at least one manifold valve when the new target pressure is set by the suspension control unit (SCU);
energizing the pump in a first direction or a second direction to pump hydraulic fluid into or out of the hydraulic circuits of the suspension system until the new target pressure is reached;
closing the at least one manifold valve when the new target pressure is reached; and
reiterating said steps of the method until the effective stiffness falls within a pre-determined range of the target stiffness.