US 12,420,762 B2
Electronically commutated machine and electronically slip-controllable braking system having an electronically commutated machine
Adrian Jerchen, Marbach (DE); and Christoph Keyl, Stuttgart (DE)
Assigned to Robert Bosch GmbH, Stuttgart (DE)
Appl. No. 18/246,134
Filed by Robert Bosch GmbH, Stuttgart (DE)
PCT Filed Sep. 22, 2021, PCT No. PCT/EP2021/076026
§ 371(c)(1), (2) Date Mar. 21, 2023,
PCT Pub. No. WO2022/063809, PCT Pub. Date Mar. 31, 2022.
Claims priority of application No. 10 2020 212 192.3 (DE), filed on Sep. 28, 2020.
Prior Publication US 2023/0356704 A1, Nov. 9, 2023
Int. Cl. B60T 13/74 (2006.01); G01D 5/14 (2006.01); H02K 11/215 (2016.01); H02K 29/08 (2006.01); F16D 66/00 (2006.01)
CPC B60T 13/74 (2013.01) [G01D 5/145 (2013.01); H02K 11/215 (2016.01); H02K 29/08 (2013.01); F16D 2066/003 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An electronically commutated motor, comprising:
a rotor on a rotor shaft, the rotor configured to rotate upon actuation; and
a signaling means configured to detect an angle of rotation of the rotor and/or of the rotor shaft, the signaling means including a retaining element which is anchored to the rotor shaft in a rotationally fixed manner, and a magnetic element which is disposed on the retaining element, wherein
the retaining element is a cup-shaped retaining element which is made of ferromagnetic material and into the interior of which the rotor shaft projects in portions such that a retaining element base of said retaining element covers an end face of the rotor shaft at least in regions, and
the magnetic element is placed onto the retaining element base from the outside of the retaining element and is retained thereon by magnetic force.