US 12,252,922 B2
Drive system for opening and closing a motor-vehicle door, and motor vehicle having the drive system
Axel Knopp, Eitelborn (DE); and Wilhelm Schwab, Koblenz (DE)
Assigned to STABILUS GMBH, Koblenz (DE)
Appl. No. 18/274,801
Filed by STABILUS GMBH, Koblenz (DE)
PCT Filed Feb. 28, 2022, PCT No. PCT/EP2022/054919
§ 371(c)(1), (2) Date Jul. 28, 2023,
PCT Pub. No. WO2022/184608, PCT Pub. Date Sep. 9, 2022.
Claims priority of application No. 10 2021 104 891.5 (DE), filed on Mar. 1, 2021.
Prior Publication US 2024/0102331 A1, Mar. 28, 2024
Int. Cl. E05F 1/10 (2006.01); E05F 1/12 (2006.01); E05F 5/00 (2017.01); E05F 15/611 (2015.01); H02K 7/108 (2006.01); H02K 9/00 (2006.01); H02K 11/25 (2016.01)
CPC E05F 15/611 (2015.01) [E05F 1/1091 (2013.01); E05F 1/1207 (2013.01); E05F 5/00 (2013.01); H02K 7/108 (2013.01); H02K 9/00 (2013.01); H02K 11/25 (2016.01); E05Y 2201/214 (2013.01); E05Y 2900/531 (2013.01); E05Y 2900/546 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A drive system for opening and closing a motor vehicle door comprising:
a. an electric motor; and
b. a hinge for fastening the motor vehicle door to a body of the associated motor vehicle to be rotatable about a hinge axis,
i. wherein the hinge comprises a door leaf for rigid attachment to the motor vehicle door;
ii. a body leaf for rigid attachment to the body; and
iii. a hinge pin arranged coaxially to the hinge axis, rigidly fixed to the door leaf, and mounted on the body leaf rotatably about the hinge axis
c. wherein the electric motor
i. comprises a stator arranged coaxially to the hinge axis and
ii. a rotor arranged coaxially to the hinge axis in the stator and mounted rotatably about the hinge axis relative to the stator; and
iii. is configured to rotate the rotor at a speed in a speed operating range and with a torque to open and close the vehicle door in a torque operating range;
d. wherein the hinge pin is arranged in sections in the rotor;
e. wherein the rotor is coupled to the hinge pin in a gearless manner to transmit rotation;
f. wherein the drive system comprises a tolerance ring arranged coaxially to the hinge axis between the rotor and the hinge pin for transmitting rotation from the rotor to the hinge pin; and
g. wherein the tolerance ring is frictionally coupled to the hinge pin and/or to the rotor at least in the torque working range.