3-way solenoid valve, brake system for vehicle including the same, and controlling method for the same
AssigneeHyundai Mobis Co., Ltd.
InventorSeung Hwan Jeong
Life of this patent
Estimating the term…
Abstract
A 3-way solenoid valve, a vehicle brake system including the 3-way solenoid valve, and a controlling method for the same are disclosed. The present disclosure in at least one embodiment provides a brake system for a vehicle, including one or more wheel cylinders configured to apply braking pressure to each of wheels of a vehicle by using hydraulic pressure, one or more of the 3-way solenoid valve configured to increase or decrease the hydraulic pressure supplied to the one or more wheel cylinders, and a braking device configured to supply the hydraulic pressure to the one or more wheel cylinders by using a stepping force applied to a brake pedal or driving of a hydraulic pump.
Claims17
A 3-way solenoid valve, comprising:
- a valve block including a valve chamber, a first fluid port, a second fluid port, and a third fluid port, wherein the first fluid port, the second fluid port and the third fluid port are in fluid communication with the valve chamber;
- an armature disposed over and vertically spaced apart from the valve block and configured to produce an electromagnetic force in response to a current supplied thereto;
- a plunger having a top end in contact with a bottom portion of the armature and configured to apply, in a direction from the top end to a bottom end of the plunger, a depressing force when applied with the electromagnetic force produced by the armature;
- a body vertically disposed between the armature and the valve block and having an interior configured to allow at least a portion of the plunger to pass therethrough;
- a sleeve disposed over and spaced apart from the valve block and comprising:
- a first portion entirely surrounding the armature except for a bottom surface of the armature facing a top portion of the body;
- and
- a second portion extending downwardly from the first portion and laterally surrounding the top portion of the body;
- and
- a flow path control assembly disposed below the body and including:
- a first opening/closing path configured to block or supply a first fluid flow between the first fluid port and the second fluid port;
- a second opening/closing path configured to supply or block a second fluid flow between the second fluid port and the third fluid port;
- a first elastic part disposed below the plunger and configured to provide an elastic force in a direction of the depressing force and regulate opening and closing of the first opening/closing path and the second opening/closing path according to a magnitude of the depressing force of the plunger;
- a first flow control part disposed between the bottom end of the plunger and a top end of the first elastic part and configured to open and close the first opening/closing path;
- and
- a second flow control part disposed below a bottom end of the first elastic part and configured to open or close the second opening/closing path.
Dependencies are inferred from the claim text.