Hydraulic block of electronic brake system for vehicle

Patent metadata

Field	Value
Publication number	US-11814022-B2
Application number	US-202117237219-A
Country	US
Kind code	B2
Filing date	Apr 22, 2021
Priority date	Feb 25, 2021
Publication date	Nov 14, 2023
Grant date	Nov 14, 2023

Abstract

A hydraulic block of an electronic braking device for vehicles, includes: a first input port for receiving brake oil from a master cylinder; a first output port for discharging the brake oil to a wheel brake; a first inlet valve port for accommodating a first inlet valve disposed on a first inlet flow path connecting the first input port to the first output port; and a first outlet valve port for accommodating a first outlet valve disposed on a first outlet flow path configured to depressurize the brake oil. The first outlet flow path is configured to pressurize the first outlet valve in an axial direction of a first plunger mounted inside the first outlet valve and to deliver the brake oil to the first outlet valve.

First claim

What is claimed is:

1. A hydraulic block of an electronic braking device for vehicles, comprising:
a first input port for receiving brake oil from a master cylinder;
a first output port for discharging the brake oil to a wheel brake;
a first inlet valve port for accommodating a first inlet valve disposed on a first inlet flow path connecting the first input port to the first output port; and
a first outlet valve port for accommodating a first outlet valve disposed on a first outlet flow path configured to depressurize the brake oil,
wherein the first outlet flow path is configured to pressurize the first outlet valve in an axial direction of a first plunger mounted inside the first outlet valve and to deliver the brake oil to the first outlet valve,
the first outlet flow path includes a first linear-decompression flow path,
the first linear-decompression flow path being configured to bypass the brake oil delivered from the first input port in a vertically downward direction, and to supply the brake oil to the first outlet valve in a direction parallel to the first outlet valve port,
the first linear-decompression flow path is vertically connected with the first outlet flow path to receive the brake oil, and
the first linear-decompression flow path includes at least two perpendicularly-bent portions after the brake oil passes a connection point of the first linear-decompression flow path with the first outlet flow path and before the brake oil reaches the first outlet valve port.

2. The hydraulic block of claim 1 , wherein
the first outlet valve is configured to receive the brake oil from the first outlet flow path in the axial direction of the first plunger and to linear-decompress the brake oil.

3. The hydraulic block of claim 1 , wherein
the first outlet flow path and the first linear-decompression flow path are disposed on different planes.

4. The hydraulic block of claim 1 , wherein
the first linear-decompression flow path bypasses the brake oil to supply the brake oil to the first outlet valve in a direction to which the first plunger is pushed up.

5. The hydraulic block of claim 4 , wherein
both of the first outlet valve port and the first linear-decompression flow path are disposed to pass through one plane parallel to a bottom plane of the hydraulic block.

6. The hydraulic block of claim 1 , further comprising,
a second output port for discharging the brake oil from the first input port to another wheel brake;
a second inlet valve port for accommodating a second inlet valve disposed on a second inlet flow path connecting the first input port to the second output port; and
a second outlet valve port for accommodating a second outlet valve installed on a second outlet flow path configured to depressurize the brake oil,
wherein the second outlet flow path is configured to pressurize the second outlet valve in an axial direction of a second plunger mounted inside the second outlet valve and to deliver the brake oil to the second outlet valve.

7. The hydraulic block of claim 6 , wherein
the second outlet valve is configured to receive the brake oil from the second outlet flow path in the axial direction of the second plunger and to linear-decompress the brake oil.

8. The hydraulic block of claim 6 , wherein
the second outlet flow path includes a second linear-decompression flow path,
the second linear-decompression flow path being configured to bypass the brake oil delivered from the first input port in a vertically downward direction, and to supply the brake oil to the second outlet valve in a direction parallel to the second outlet valve port.

9. The hydraulic block of claim 8 , wherein
the second linear-decompression flow path is vertically connected with the second outlet flow path to receive the brake oil in a vertically downward direction, and
the second linear-decompression flow path bypasses the brake oil to supply the brake oil to the second outlet valve in a direction to which the second plunger is pushed up.

10. The hydraulic block of claim 9 , wherein
both of the second outlet valve port and the second linear-decompression flow path are disposed to pass through one plane parallel to a bottom plane of the hydraulic block.

11. The hydraulic block of claim 6 , wherein
the second outlet flow path and the second linear-decompression flow path are disposed on different planes.

Assignees

• Hyundai Mobis Co Ltd

Inventors

• Seo Eu Dong

Classifications

• B60T17/04 Primary

  Arrangements of piping, valves in the piping, e.g. cut-off valves, couplings or air hoses (traction couplings involving joints for supply lines, electric circuits, or the like B60D1/62; couplings peculiar to railway vehicles for, or combined with, couplings or connectors for fluid conduits or electric cables B61G5/06; pipes, cut-off valves, couplings, air hoses per se F16C, F16K, F16L) · CPC title

• B60T8/343 Primary

  Systems characterised by their lay-out (B60T8/349 takes precedence) · CPC title

• F15B15/08

  Characterised by the construction of the motor unit · CPC title

• B60T13/686 Primary

  in hydraulic systems or parts thereof · CPC title

• B60T13/12 Primary

  the fluid being liquid · CPC title