Electromechanical brake pressure generator including a gear and method for manufacturing a gear for an electromechanical brake pressure generator

Patent metadata

Field	Value
Publication number	US-12060045-B2
Application number	US-202017606144-A
Country	US
Kind code	B2
Filing date	Feb 10, 2020
Priority date	Apr 25, 2019
Publication date	Aug 13, 2024
Grant date	Aug 13, 2024

Abstract

An electromechanical brake pressure generator for a hydraulic braking system of a vehicle. The electromechanical brake booster includes at least one gear for transferring a torque of the electric motor for brake pressure generation. The gear in this case includes a planetary carrier for supporting planetary wheels, planetary wheels pins which are connected to the planetary carrier and on which the planetary wheels are rotatably fastenable, and a pinion for transferring a drive torque or output torque, which is rotatably fixedly connected to the planetary carrier at a side thereof opposite the planetary wheel pins. At least the part of the planetary carrier that includes the planetary wheel pins is materially integrally formed with the latter from the same material.

First claim

What is claimed is:

1. An electromechanical brake pressure generator for a hydraulic braking system of a vehicle, comprising:
at least one gear which is connected to an electric motor, the gear configured to transfer a torque of the electric motor for brake pressure generation, the gear including:
a planetary carrier for supporting planetary wheels,
planetary wheel pins which are connected to the planetary carrier and on which the planetary wheels are rotatably fastenable, and
a pinion configured to transfer a drive torque or output torque, the pinion being rotatably fixedly connected to the planetary carrier at a side opposite the planetary wheel pins,
wherein at least the part of the planetary carrier that includes the planetary wheel pins is materially integrally formed with the planetary wheel pins from the same material.

2. The electromechanical brake pressure generator as recited in claim 1 , wherein the planetary carrier includes a shoulder between planetary wheel pins and the pinion, which forms a point of support for components of the gear.

3. The electromechanical brake pressure generator as recited in claim 1 , wherein the pinion is materially integrally connected to the planetary carrier.

4. The electromechanical brake pressure generator as recited in claim 1 , wherein the pinion is a plastic injection molded part.

5. The electromechanical brake pressure generator as recited in claim 1 , wherein at least the part of the planetary carrier that forms the planetary wheel pins is a sintered part made of a metal.

6. The electromechanical brake pressure generator as recited in claim 1 , wherein the planetary carrier also includes component structures made of plastic.

7. The electromechanical brake pressure generator as recited in claim 6 , wherein the component structures are situated in an area between adjacent planetary wheel pins.

8. A method for manufacturing a gear of an electromechanical brake pressure generator, the gear including a planetary carrier for supporting planetary wheels, planetary wheel pins which are connected to the planetary carrier and on which the planetary wheels are rotatably fastenable, and a pinion configured to transfer a drive torque or output torque, the pinion being rotatably fixedly connected to the planetary carrier at a side opposite the planetary wheel pins, the method comprising:
materially integrally manufacturing at least the planetary carrier and the planetary wheel pins using a primary shaping manufacturing method.

9. The method as recited in claim 8 , wherein the primary shaping method is sintering or injection molding.

10. A vehicle, comprising:
an electromechanical brake pressure generator for a hydraulic braking system, the electromechanical brake pressure generator including:
at least one gear which is connected to an electric motor, the gear configured to transfer a torque of the electric motor for brake pressure generation, the gear including:
a planetary carrier for supporting planetary wheels,
planetary wheel pins which are connected to the planetary carrier and on which the planetary wheels are rotatably fastenable, and
a pinion configured to transfer a drive torque or output torque, the pinion being rotatably fixedly connected to the planetary carrier at a side opposite the planetary wheel pins,
wherein at least the part of the planetary carrier that includes the planetary wheel pins is materially integrally formed with the planetary wheel pins from the same material.

Assignees

• Bosch Gmbh Robert

Inventors

• Oehler Christoph
• Oehler Claus
• Boehm Mark
• Uhlig Martin
• Reichert Sebastian Martin

Classifications

• B60T13/686

  in hydraulic systems or parts thereof · CPC title

• B60Y2200/91

  Electric vehicles · CPC title

• B60T13/746

  and mechanical transmission of the braking action · CPC title

• B60T13/745 Primary

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