Active suspension apparatus for vehicle and valve thereof
AssigneeMando Corporation
InventorTae Ju Kim
Life of this patent
Estimating the term…
Abstract
An active suspension apparatus for a vehicle according to one embodiment of the present invention includes 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 a valve configured to control a flow of the fluid in the fluid path, wherein, when the actuator is controlled to receive the fluid from the pump, the valve is configured to prevent the fluid from flowing from the actuator to the pump by a pressure of the fluid accommodated in the actuator.
Claims18
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.
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 valve comprises:
- a sleeve;
- an armature provided in the sleeve to be vertically movable;
- a sheet holder coupled with a lower end of the sleeve and having a first connection part formed at a lower side thereof to be connected with a fluid path disposed at a side of the pump and a second connection part formed at a side surface thereof to be connected with the fluid path disposed at a side of the actuator;
- and
- an opening and closing member accommodated in the sheet holder to be vertically movable based on movement of the armature, and
- when the opening and closing member is moved upward, the first connection part and the second connection part are in fluid communication with each other.
Dependencies are inferred from the claim text.