公开(公告)号：WO2020185968A1

公开(公告)日：2020-09-17

申请号：PCT/US2020/022193

申请日：2020-03-11

Applicant: CLEARMOTION, INC.

Inventor： BELTER, Joseph Thomas ,  SELDEN, Brian Alexander ,  SIROIS, Jason Steven ,  VAN STAALDUINEN, Mathijs ,  TUCKER, Clive

IPC: F16F9/512

Abstract: Active suspension actuator systems including an actuator with a compression volume and an extension volume are described. In some embodiments, the system includes one or more flow control devices in fluid communication with the compression volume and/or the extension volume of the actuator. In some instances, a flow control device may include a pressure balanced blow-off valve (PBOV). In some embodiments, the system includes a high capacity bidirectional base valve. In some embodiments, two or more flow control devices cooperate to, for example, damp low amplitude oscillations in the extension and/or compression volumes, and to allow the build-up of pump generated differential pressures while discharging rapid road induced differential pressure spikes between the extension and compression volumes.