Hydraulic block for a hydraulic power unit of a hydraulic power vehicle braking system

Patent metadata

Field	Value
Publication number	US-11767000-B2
Application number	US-202117162820-A
Country	US
Kind code	B2
Filing date	Jan 29, 2021
Priority date	Apr 7, 2020
Publication date	Sep 26, 2023
Grant date	Sep 26, 2023

Abstract

A cuboidal hydraulic block of a hydraulic power unit of a hydraulic power vehicle braking system for use in a left-hand drive vehicle or a right-hand drive vehicle to be attachable, rotatably by 180° about a horizontal axis, at a splashboard of a motor vehicle. An electric motor of a power brake pressure generator is thus selectively situated on a right or a left side of the hydraulic block.

First claim

What is claimed is:

1. A cuboidal hydraulic block for a hydraulic power unit of a hydraulic power vehicle braking system, which is provided for an attachment, with an attachment side, to a splashboard of a motor vehicle, the hydraulic block comprising:
a motor side;
a control unit side situated opposite the motor side, the attachment side abutting the motor side and the control unit side;
a reservoir side which abuts the motor side, the control unit side, and the attachment side, and on which a brake fluid reservoir is situatable;
a master brake cylinder borehole which is open on the attachment side of the hydraulic block;
a power cylinder borehole which extends from the motor side to the control unit side through the hydraulic block;
a signal transmitter borehole configured to receive a position transmitter of a master cylinder piston, the signal transmitter borehole being open on the attachment side of the hydraulic block and extending parallel of the master cylinder borehole, the signal transmitter borehole being on an opposite side of the master brake cylinder borehole than power cylinder borehole;
a cylindrical receptacle open on the motor side and configured to receive a pedal travel simulator extending from the motor side toward the control side through the hydraulic block, the cylindrical receptacle being situated on the same side of the master brake cylinder borehole as the power cylinder borehole, and on a side of the power cylinder borehole which faces away from the attachment side;
a plurality of through-holes extending from the motor side to the control unit side through the hydraulic block configured to receive electrical connecting lines electrically connecting an electrical motor on the motor side to an electronic control unit on the control unit side, the plurality of through-holes being situated on a side of the power cylinder borehole opposite to a side on the power cylinder borehole on which the master brake cylinder is situated and being situated closer to the attachment side than the cylindrical receptacle; and
wherein the hydraulic block, including the master brake cylinder borehole, the power cylinder borehole, the signal transmitter borehole, the cylindrical receptacle, and the plurality of through-holes, has two installation and usage positions which are rotated with respect to one another by 180° about an axis which is in parallel to the master brake cylinder borehole, and the reservoir side is situated on a side of the master brake cylinder borehole which is situated opposite the power cylinder borehole for one of the two installation and usage positions, and is situated on the same side of the master brake cylinder borehole as the power cylinder borehole for the other installation and usage position.

2. The hydraulic block as recited in claim 1 , wherein the hydraulic block includes a connection for the brake fluid reservoir on the reservoir side on the same side of the master brake cylinder borehole as the power cylinder borehole.

3. The hydraulic block as recited in claim 1 , wherein the connection for the brake fluid reservoir has at least a distance of one quarter or one third of a length of the reservoir side from the attachment side.

4. The hydraulic block as recited in claim 1 , wherein, as viewed looking at the reservoir side, the connection for the brake fluid reservoir is situated between the cylindrical receptacle for the pedal travel simulator and the plurality of through-holes.

5. The hydraulic block as recited in claim 1 , wherein the hydraulic block includes a first vent hole for the master brake cylinder borehole, which tangentially intersects the master brake cylinder borehole on a side facing the reservoir side.

6. The hydraulic block as recited in claim 5 , wherein a second vent hole leads from the first vent hole in a direction of a side of the hydraulic block which is situated opposite the attachment side, a third vent hole leads from the second vent hole in a direction of a side of the hydraulic block which is situated opposite the reservoir side, and a fourth vent hole leads from the third vent hole in a direction of the attachment side of the hydraulic block.

7. The hydraulic block as recited in claim 1 , wherein an electronic control unit, which includes an electrical plug connection on a side of the hydraulic block which is situated opposite the attachment side, is situated on the control unit side of the hydraulic block.

8. The hydraulic block as recited in claim 7 , wherein the electronic control unit is situated at the control unit side, and an electric motor of a power brake pressure generator is situated at the opposite motor side of the hydraulic block, and the electronic control unit and the electric motor are situated in a fixed position with respect to one another and to the power cylinder borehole at the hydraulic block.

9. A cuboidal hydraulic block for a hydraulic power unit of a hydraulic power vehicle braking system, which is provided for an attachment, with an attachment side, to a splashboard of a motor vehicle, the hydraulic block comprising:
a motor side;
a control unit side situated opposite the motor side, the attachment side abutting the motor side and the control unit side; and
a reservoir side which abuts the motor side, the control unit side, and the attachment side, and on which a brake fluid reservoir is situatable;
a master brake cylinder borehole which is open on the attachment side of the hydraulic block;
a power cylinder borehole which extends from the motor side to the control unit side through the hydraulic block; and
a connection for the brake fluid reservoir on the reservoir side;
wherein the hydraulic block includes a first vent hole for the master brake cylinder borehole, which tangentially intersects the master brake cylinder borehole on a side facing the reservoir side;
wherein a second vent hole leads from the first vent hole in a direction of a side of the hydraulic block which is situated opposite the attachment side, a third vent hole leads from the second vent hole in a direction of a side of the hydraulic block which is situated opposite the reservoir side, and a fourth vent hole leads from the third vent hole in a direction of the attachment side of the hydraulic block.

10. The hydraulic block as recited in claim 9 , wherein the hydraulic block includes a receptacle for a pedal travel simulator in the motor side on the same side of the master brake cylinder borehole as the power cylinder borehole, and on a side of the power cylinder borehole which faces away from the attachment side.

11. The hydraulic block as recited in claim 9 , wherein the hydraulic block includes a signal transmitter borehole, which is in parallel to the master brake cylinder borehole and open on the attachment side, for a rod-shaped holder of a position transmitter of a master brake cylinder piston.

12. A cuboidal hydraulic block for a hydraulic power unit of a hydraulic power vehicle braking system, which is provided for an attachment, with an attachment side, to a splashboard of a motor vehicle, the hydraulic block comprising:
a motor side;
a control unit side situated opposite the motor side, the attachment side abutting the motor side and the control unit side;
a reservoir side which abuts the motor side, the control unit side and the attachment side, and on which a brake fluid reservoir is situatable;
a master brake cylinder borehole, which is open at the attachment side of the hydraulic block;
a power cylinder borehole, which extends from the motor side to the control unit side through the hydraulic block; and
a connection for the brake fluid reservoir at the reservoir side;
where the r

Assignees

• Bosch Gmbh Robert

Inventors

• Weh Andreas
• Tandler Juergen
• Hagspiel Martin
• Mayr Matthias
• Kaserer Stefan

Classifications

• B60T8/368 Primary

  combined with other mechanical components, e.g. pump units, master cylinders · CPC title

• B60T13/686

  in hydraulic systems or parts thereof · CPC title

• B60Y2400/301

  for position or displacement · CPC title

• B60Y2400/306

  Pressure sensors · CPC title

• B60Y2400/81

  Braking systems · CPC title