Patent ID: 9597939
Date: 2017-03-21
CPC Classifications: B60G,B60K,F03G,F16F,H02K

Claim:
1. A shock absorber system of a vehicle, comprising: a housing that includes a compression volume and an extension volume; a piston disposed in the housing that in a first mode moves through at least a portion of a compression stroke-and that in a second mode moves through at least a portion of an extension stroke; a hydraulic device which is one of a hydraulic motor and a hydraulic pump, wherein the hydraulic device includes a shaft, a first port and a second port, wherein the first port is in fluid communication with the compression volume and the second port is in fluid communication with the extension volume; a reservoir having a reservoir volume that receives fluid from at least one of the compression volume and the extension volume; a valve that controls at least a portion of fluid flow to or from at least one of the compression volume and the extension volume; and a controller associated with the hydraulic device, wherein the controller operates the hydraulic device at least at two different shaft velocities based on changes in driving conditions.