Electromechanical brake pressure generator for a hydraulic braking system

Patent metadata

Field	Value
Publication number	US-12098716-B2
Application number	US-202017601667-A
Country	US
Kind code	B2
Filing date	Feb 4, 2020
Priority date	Apr 25, 2019
Publication date	Sep 24, 2024
Grant date	Sep 24, 2024

Abstract

An electromechanical brake pressure generator for a hydraulic braking system of a vehicle. The electromechanical brake pressure generator encompasses a screw drive assemblage for converting an input-drive-side rotational motion into a translational motion for brake pressure generation. The screw drive assemblage encompasses a spindle that is rotatable via an electric motor, a spindle nut that interacts with a thread of the spindle so that the spindle nut is axially displaceable with a rotation of the spindle, and a housing that at least partly surrounds the spindle and the spindle nut. The screw drive assemblage additionally encompasses a drive wheel, which is disposed nonrotatably on the spindle and by way of which the spindle is connected to the electric motor. The spindle and the drive wheel are mounted, via a common bearing, rotatably with respect to the stationary housing. The bearing is radially surrounded at least partly by the drive wheel.

First claim

What is claimed is:

1. An electromechanical brake pressure generator for a hydraulic braking system of a vehicle, comprising:
at least one screw drive assemblage configured to convert an input-drive-side rotational motion into a translational motion; and
a piston/cylinder unit, actuatable by the screw drive assemblage, configured for brake pressure generation;
wherein the screw drive assemblage includes:
a spindle that is rotatable via an electric motor,
a spindle nut that interacts with a thread of the spindle so that the spindle nut is axially displaceable with a rotation of the spindle,
a stationary housing that at least partly surrounds the spindle and the spindle nut, and
a drive wheel which is disposed nonrotatably on the spindle and by way of which the spindle is connected to the electric motor,
wherein the spindle and the drive wheel are mounted, via a common bearing, rotatably with respect to the stationary housing, and the bearing is radially surrounded at least partly by the drive wheel, and
wherein the bearing is disposed on an end face of the drive wheel which faces toward the spindle.

2. The electromechanical brake pressure generator as recited in claim 1 , wherein the bearing is a rolling bearing.

3. The electromechanical brake pressure generator as recited in claim 1 , wherein the bearing is disposed between the spindle and the housing.

4. The electromechanical brake pressure generator as recited in claim 1 , wherein the bearing is disposed between the drive wheel and the housing.

5. The electromechanical brake pressure generator as recited in claim 1 , wherein the bearing is disposed on an end face of the drive wheel which faces away from the spindle.

6. The electromechanical brake pressure generator as recited in claim 1 , wherein the bearing and the drive wheel are disposed at an end of the spindle.

7. A vehicle comprising the electromechanical brake pressure generator as recited in claim 1 .

Assignees

• Bosch Gmbh Robert

Inventors

• Greiner Matthias
• Oehler Claus
• Reichert Sebastian Martin

Classifications

• F04B19/22

  of reciprocating-piston type · CPC title

• F04B17/03

  driven by electric motors · CPC title

• F16H25/20

  Screw mechanisms (with automatic reversal F16H25/12) · CPC title

• B60T13/746

  and mechanical transmission of the braking action · CPC title

• B60T7/042

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