US 12,187,090 B2
Active suspension control on repeating surface undulations
Elliot Hemes, Solihull (GB); Luke Birch, Mickleton (GB); Dennis Lausecker, Coventry (GB); James Kelly, Coventry (GB); and Syed Asad Ali, Coventry (GB)
Assigned to Jaguar Land Rover Limited, Warwickshire (GB)
Appl. No. 18/039,235
Filed by JAGUAR LAND ROVER LIMITED, Coventry (GB)
PCT Filed Nov. 25, 2021, PCT No. PCT/EP2021/083064
§ 371(c)(1), (2) Date May 27, 2023,
PCT Pub. No. WO2022/112452, PCT Pub. Date Jun. 2, 2022.
Claims priority of application No. 2018678 (GB), filed on Nov. 27, 2020.
Prior Publication US 2024/0001727 A1, Jan. 4, 2024
Int. Cl. B60G 17/0165 (2006.01)
CPC B60G 17/0165 (2013.01) [B60G 2400/102 (2013.01); B60G 2400/204 (2013.01); B60G 2400/252 (2013.01); B60G 2400/821 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A control system configured to control an active suspension system of a vehicle, the control system comprising one or more controller, wherein the control system is configured to:
determine that the vehicle is travelling on or approaching repeating surface undulations;
determine vehicle speed;
determine an indication of surface wavelength of the repeating surface undulations;
determine a surface frequency, wherein the surface frequency is proportional to vehicle speed divided by surface wavelength; and
control the active suspension system to control at least one of a leading wheel suspension frequency and a trailing wheel suspension frequency in dependence on the vehicle speed, surface wavelength, and surface frequency.