Patent ID: 9533541
Date: 2017-01-03
CPC Classifications: B60G,F16H,F16K,Y10T

Claim:
1. An active suspension apparatus for a vehicle, comprising: a pump configured to control movement of a fluid; an actuator connected with a coil spring, which is connected with a wheel of the vehicle, and configured to receive the fluid from the pump and to compensate for a displacement of the coil spring; a fluid path configured to connect the pump with the actuator; and one or more valves configured to control a flow of the fluid in the fluid path; wherein at least one of the valves is configured to prevent the fluid from moving from the actuator to the pump by a pressure of the fluid accommodated in the actuator when the actuator is controlled to receive the fluid from the pump, wherein the pump comprises a first chamber and a second chamber formed by dividing an inside of a cylinder in a longitudinal direction of the cylinder, and a first piston and a second piston are disposed at the first chamber and the second chamber, respectively, and wherein the first piston and the second piston are moved based on the driving of the motor, and the fluid accommodated in the first chamber and the second chamber is supplied to the actuator.