US 12,459,322 B2
Independent and cross-linked hydraulic actuator systems
Clive Tucker, Charlestown, MA (US); Marco Giovanardi, Melrose, MA (US); and Jack A. Ekchian, Belmont, MA (US)
Assigned to ClearMotion, Inc., Billerica, MA (US)
Appl. No. 16/500,669
Filed by ClearMotion, Inc., Billerica, MA (US)
PCT Filed May 31, 2018, PCT No. PCT/US2018/035290
§ 371(c)(1), (2) Date Oct. 3, 2019,
PCT Pub. No. WO2018/226494, PCT Pub. Date Dec. 13, 2018.
Claims priority of provisional application 62/516,848, filed on Jun. 8, 2017.
Prior Publication US 2020/0223274 A1, Jul. 16, 2020
Int. Cl. B60G 15/06 (2006.01); B60G 13/08 (2006.01); B60G 17/027 (2006.01); B60G 21/055 (2006.01); F16F 9/18 (2006.01)
CPC B60G 15/062 (2013.01) [B60G 13/08 (2013.01); B60G 17/0272 (2013.01); B60G 21/055 (2013.01); F16F 9/18 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An active suspension system of a vehicle comprising:
a first actuator assembly that includes:
a first primary hydraulic actuator directly driven by a first hydraulic motor-pump; and
a first perch actuator indirectly driven by the first hydraulic motor-pump,
wherein the first primary hydraulic actuator includes a first compression volume and a first extension volume, and
wherein the first actuator assembly includes a first multi-source hydraulic intensifier with a first port in fluid communication with the first compression volume, a second port in fluid communication with the first extension volume, and a third port in fluid communication with a first volume of the first perch actuator.