IP Library Granted Patent US 12679317
Granted Patent B2
US 12679317 · App. 18/340,160 · Granted Jul 14, 2026

Hydraulic block of a power brake system

Inventors: Andreas Weh (Sulzberg, DE); Michael Wilcox (Charleston, SC); Stefan Abare (Summerville, SC)
Assignee: ROBERT BOSCH GMBH
B60T8/368B60T8/4081
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12679317
App. No.
18/340,160
Granted
Jul 14, 2026
Kind
B2
Abstract

A hydraulic block of a power brake system. The hydraulic block is formed as a cuboid housing block, and forms a power cylinder bore for receiving a power cylinder. The hydraulic block has two receptacles for pedal travel simulators and is configured so as to be hydraulically connectable to a master brake cylinder, a brake fluid reservoir, and a driving dynamics control system.

Claims (12)

1 . A hydraulic block of a power brake system, wherein the hydraulic block is formed as a cuboid housing block including a power cylinder bore configured to receive a power cylinder, the hydraulic block having has two receptacles for pedal travel simulators and being configured so as to be hydraulically connectable to a master brake cylinder, a brake fluid reservoir, and a driving dynamics control system, wherein receptacles of a first and second collector chamber of a brake fluid collector are situated in the hydraulic block, each of which is connected to one of the pedal travel simulators via a separate hydraulic line.

2 . The hydraulic block as recited in claim 1 , wherein the pedal travel simulators are hydraulically connected in parallel to one another.

3 . The hydraulic block as recited in claim 1 , wherein the pedal travel simulators have plate springs.

4 . The hydraulic block as recited in claim 3 , wherein at least one of the pedal travel simulators includes a coil spring.

5 . The hydraulic block as recited in claim 3 , wherein a spring stiffness of the two pedal travel simulators is selected such that the plate springs compress sequentially or parallel to each other.

6 . The hydraulic block as recited in claim 1 , wherein a control device is fastened to the hydraulic block, the control device being situated on a side of the hydraulic block at which the pedal travel simulators extend over the hydraulic block.

7 . The hydraulic block as recited in claim 1 , wherein a single simulator control valve is connected upstream of the pedal travel simulators in the hydraulic block.

8 . A brake system, comprising:

a first unit with a brake fluid reservoir and a master brake cylinder;

a second unit with a hydraulic block, the hydraulic block being formed as a cuboid housing block including a power cylinder bore configured to receive a power cylinder, the hydraulic block having has two receptacles for pedal travel simulators and being configured so as to be hydraulically connectable to the master brake cylinder, the brake fluid reservoir, and a driving dynamics control system, wherein receptacles of a first and second collector chamber of a brake fluid collector are situated in the hydraulic block, each of which is connected to one of the pedal travel simulators via a separate hydraulic line; and

a third unit with the driving dynamics control system;

wherein the first, second, and third units are hydraulically connected to one another.