Hydraulic unit of electronic control brake system

Patent metadata

Field	Value
Publication number	US-11072318-B2
Application number	US-201916565445-A
Country	US
Kind code	B2
Filing date	Sep 9, 2019
Priority date	Oct 17, 2014
Publication date	Jul 27, 2021
Grant date	Jul 27, 2021

Abstract

A hydraulic unit of an electronic control brake system is disclosed. The hydraulic unit of the electronic control brake system includes a modulator block having a plurality of accommodating bores in which a plurality of valves and pressure sensors coupled to a master cylinder to control braking hydraulic pressure supplied towards vehicle wheels are installed. Passages connecting between the accommodating bores are formed in the modulator block, and the passages are formed to be divided into two layers.

First claim

What is claimed is:

1. A hydraulic unit of an electronic control brake system, comprising:
a modulator block having:
a plurality of accommodating bores in which a plurality of valves and a pressure sensor hydraulically coupled to a master cylinder to control braking hydraulic pressure supplied to vehicle wheels are disposed; and
passages connecting between the plurality of accommodating bores, the passages formed in the modulator block,

wherein the plurality of accommodating bores comprise:
an inflow valve accommodating bore, an outflow valve accommodating bore, a shut-off valve accommodating bore, a simulation valve accommodating bore, a pressure sensor accommodating bore, and a switching valve accommodating bore which are formed on a first surface of the modulator block; and
a check valve accommodating bore which is formed on a second surface of the modulator block facing the first surface of the modulator block, and
wherein the inflow valve accommodating bore, the outflow valve accommodating bore, the shut-off valve accommodating bore, the simulation valve accommodating bore, and the pressure sensor accommodating bore are positioned in order.

2. The hydraulic unit of the electronic control brake system of claim 1 , wherein the shut-off valve accommodating bore is positioned between the switching valve accommodating bore and the outflow valve.

3. The hydraulic unit of the electronic control brake system of claim 1 , wherein a bore hydraulically connected to a reservoir storing oil is formed on a third surface of the modulator block positioned between the first surface and the second surface of the modulator block.

4. The hydraulic unit of the electronic control brake system of claim 3 , wherein the first surface of the modulator block is parallel with the second surface of the modulator block, and the third surface of the modulator block is perpendicular to the first and/or second surfaces of the modulator block.

5. The hydraulic unit of the electronic control brake system of claim 1 , wherein the check valve accommodating bore is positioned between the shut-off accommodating bore and the switching accommodating bore.

6. The hydraulic unit of the electronic control brake system of claim 1 , wherein an inflow valve disposed in the inflow valve accommodating bore is a normally open valve, and an outflow valve disposed in the outflow valve accommodating bore is a normally closed valve.

7. The hydraulic unit of the electronic control brake system of claim 1 , further comprising an other shut-off valve accommodating bore,
wherein the shut-off valve accommodating bore is hydraulically connected between one chamber of the master cylinder and two of the vehicle wheels, and the other shut-off valve accommodating bore is hydraulically connected to an other chamber of the master cylinder and two other of the vehicle wheels.

8. A hydraulic unit of an electronic control brake system, comprising:
a modulator block having:
a plurality of accommodating bores in which a plurality of valves and a pressure sensor hydraulically coupled to a master cylinder to control braking hydraulic pressure supplied to vehicle wheels are disposed; and
passages connecting between the plurality of accommodating bores, the passages formed in the modulator block,

wherein the plurality of accommodating bores comprise:
an inflow valve accommodating bore, an outflow valve accommodating bore, a shut-off valve accommodating bore, a simulation valve accommodating bore, a pressure sensor accommodating bore, and a switching valve accommodating bore which are formed on a first surface of the modulator block; and
a check valve accommodating bore which is formed on a second surface of the modulator block facing the first surface of the modulator block, and
wherein the inflow valve accommodating bore, the outflow valve accommodating bore, the shut-off valve accommodating bore, and the switching valve accommodating bore are positioned in order.

9. The hydraulic unit of the electronic control brake system of claim 8 , wherein the simulation valve accommodating bore is positioned between the outflow valve accommodating bore and the pressure sensor accommodating bore.

10. The hydraulic unit of the electronic control brake system of claim 8 , wherein a bore hydraulically connected to a reservoir storing oil is formed on a third surface of the modulator block positioned between the first surface and the second surface of the modulator block.

11. The hydraulic unit of the electronic control brake system of claim 10 , wherein the first surface of the modulator block is parallel with the second surface of the modulator block, and the third surface of the modulator block is perpendicular to the first and/or second surfaces of the modulator block.

12. The hydraulic unit of the electronic control brake system of claim 8 , wherein the check valve accommodating bore is positioned between the shut-off accommodating bore and the switching accommodating bore.

13. The hydraulic unit of the electronic control brake system of claim 8 , wherein an inflow valve disposed in the inflow valve accommodating bore is a normally open valve, and an outflow valve disposed in the outflow valve accommodating bore is a normally closed valve.

14. The hydraulic unit of the electronic control brake system of claim 8 , further comprising an other shut-off valve accommodating bore,
wherein the shut-off valve accommodating bore is hydraulically connected between one chamber of the master cylinder and two of the vehicle wheels, and the other shut-off valve accommodating bore is hydraulically connected to an other chamber of the master cylinder and two other of the vehicle wheels.

15. A hydraulic unit of an electronic control brake system, comprising:
a modulator block having:
a plurality of accommodating bores in which a plurality of valves and a pressure sensor hydraulically coupled to a master cylinder to control braking hydraulic pressure supplied to vehicle wheels are disposed; and
passages connecting between the plurality of accommodating bores, the passages formed in the modulator block,

wherein the plurality of accommodating bores comprise:
an inflow valve accommodating bore, an outflow valve accommodating bore, a shut-off valve accommodating bore, a simulation valve accommodating bore, a pressure sensor accommodating bore, and a switching valve accommodating bore which are formed on a first surface of the modulator block; and
a check valve accommodating bore which is formed on a second surface of the modulator block facing the first surface of the modulator block, and
wherein the inflow valve accommodating bore, the outflow valve accommodating bore, the shut-off valve accommodating bore, the simulation valve accommodating bore, and the switching valve accommodating bore are positioned in order.

16. The hydraulic unit of the electronic control brake system of claim 15 , wherein the simulation valve accommodating bore is positioned between the pressure sensor accommodating bore and the outflow valve accommodating bore.

17. The hydraulic unit of the electronic control brake system of claim 15 , wherein a bore hydraulically connected to a reservoir storing oil is formed on a third surface of the modulator block positioned between the first surface and the second surface of the modulator block.

18. The hydraulic unit of the electronic control brake system of claim 17 , wherein the first surface of the modulator block is parallel with the second surface of the modulator block, and the third surface of the modulator blo

Assignees

• Mando Corp

Inventors

• Jeon In-Wook

Classifications

• B60T13/12 Primary

  the fluid being liquid · CPC title

• B60T7/042

  by electrical means, e.g. using travel or force sensors · CPC title

• B60T13/745

  acting on a hydraulic system, e.g. a master cylinder · CPC title

• B60T13/146

  Part of the system directly actuated by booster pressure · CPC title

• B60T13/686 Primary

  in hydraulic systems or parts thereof · CPC title