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.
Claims18
A 3-way solenoid valve, comprising:
- a valve block including a valve chamber, a first fluid port in fluid communication with the valve chamber, a second fluid port, and a third fluid port;
- an armature configured to produce an electromagnetic force in response to a current supplied thereto;
- a plunger having a first end in contact with at least a portion of the armature and configured to transmit, to a second end of the plunger, a depressing force in response to the electromagnetic force produced by the armature;
- a body disposed under the armature and having an interior configured to allow at least a portion of the plunger to pass therethrough;
- and
- a flow path control assembly including:
- a first opening/closing path configured to block or supply a flow of fluid between the first fluid port and the second fluid port;
- a second opening/closing path configured to supply or block a flow of fluid between the second fluid port and the third fluid port;
- and
- a first elastic part disposed within the flow path control assembly, 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 method of controlling a 3-way solenoid valve configured to control a flow of fluid in a vehicle among a pressurizing device, a wheel cylinder, and an accumulator or reservoir, the method comprising:
- determining whether there is a need to maintain, increase or decrease a pressure in the wheel cylinder;
- producing, using an armature in the 3-way solenoid valve, an electromagnetic force to control the pressure in the wheel cylinder;
- and
- regulating (i) opening and closing of a first opening/closing path that regulates the flow of the fluid between the accumulator or reservoir and the wheel cylinder, and (ii) opening and closing of a second opening/closing path that regulates the flow of the fluid between the wheel cylinder and the pressurizing device according to the electromagnetic force produced by the armature.
Dependencies are inferred from the claim text.