Electric motor-operated drive unit, brake actuator

US11529939B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Marc Micke · Brackenheim, DE
• Patrick Budaker · Schorndorf, DE

Key dates

• Filing date: Oct 11, 2019
• Grant date: Dec 20, 2022
• Expiry date: Jun 17, 2041

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60T13/746
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

An electric motor-operated drive unit, in particular for a brake actuator of a motor vehicle, includes a rotor shaft rotatably mounted in a housing; and a rotor position sensor that includes a transmitter wheel arranged on the rotor shaft in a rotatably fixed manner and a sensor fixed to the housing and assigned to the transmitter wheel, where a front face of the transmitter wheel is positioned opposite, and with an axial clearance to, a housing wall section of the housing. The transmitter wheel and/or the housing wall section are/is designed in such a way that the axial clearance increases radially outward, at least in some areas.