US 11,685,220 B2
Control systems and methods for suspension systems
Nandish Calchand, Leuven (BE); Bert Vandersmissen, Lovenjoel (BE); and Thom Heylands, Sint-Truiden (BE)
Assigned to DRiV Automotive Inc., Northville, MI (US)
Filed by DRIV Automotive Inc., Southfield, MI (US)
Filed on Oct. 12, 2021, as Appl. No. 17/499,726.
Prior Publication US 2023/0112405 A1, Apr. 13, 2023
Int. Cl. B60G 17/04 (2006.01); B60G 17/08 (2006.01); B60G 17/015 (2006.01); B60G 17/016 (2006.01)
CPC B60G 17/08 (2013.01) [B60G 17/016 (2013.01); B60G 17/0152 (2013.01); B60G 2202/24 (2013.01); B60G 2400/0511 (2013.01); B60G 2400/0512 (2013.01); B60G 2400/10 (2013.01); B60G 2400/204 (2013.01); B60G 2400/5182 (2013.01); B60G 2500/104 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A control system for a suspension system of a vehicle, the control system comprising:
a target volume module configured to determine a target volume of hydraulic fluid within the suspension system of the vehicle based on a target pressure of the hydraulic fluid within the suspension system;
a volume command module configured to generate a volume command based on the target volume and a present volume of the hydraulic fluid within first and second circuits of the suspension system;
a command module configured to, based on the volume command, generate:
a pump command for an electric hydraulic fluid pump; and
first and second valve commands for first and second seat valves that regulate hydraulic fluid flow to and from the first and second circuits, respectively, of the suspension system;
a valve control module that actuates the first and second seat valves based on the first and second valve commands, respectively; and
a pump control module that controls operation of the electric hydraulic fluid pump based on the pump command.