US 11,873,038 B2
Electromechanical power steering system having a pivot-pendulum bearing assembly
Dirk Möller, Sennwald (CH)
Assigned to thyssenkrupp Presta AG, Eschen (LI); and thyssenkrupp AG, Essen (DE)
Appl. No. 17/625,931
Filed by thyssenkrupp Presta AG, Eschen (LI); and thyssenkrupp AG, Essen (DE)
PCT Filed Jul. 7, 2020, PCT No. PCT/EP2020/069047
§ 371(c)(1), (2) Date Jan. 10, 2022,
PCT Pub. No. WO2021/005023, PCT Pub. Date Jan. 14, 2021.
Claims priority of application No. 10 2019 118 673.0 (DE), filed on Jul. 10, 2019.
Prior Publication US 2022/0242478 A1, Aug. 4, 2022
Int. Cl. B62D 5/04 (2006.01); F16H 57/022 (2012.01); F16H 57/021 (2012.01)
CPC B62D 5/0454 (2013.01) [B62D 5/0403 (2013.01); B62D 5/0421 (2013.01); F16H 57/022 (2013.01); F16H 2057/0213 (2013.01); F16H 2057/0222 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An electromechanical power steering system comprising:
an electric servomotor that has a motor shaft and drives a shaft that meshes with a helical gear, wherein the shaft is disposed in a gearbox housing and mounted in a bearing assembly having a roller bearing so as to be rotatable about a rotation axis;
a pretensioning installation, which is for adjusting play in engagement between the helical gear and the shaft, resiliently pretensions a movable bearing element of the bearing assembly relative to the gearbox housing,
wherein the gearbox housing includes a housing portion having a first contact face and a second contact face,
wherein the bearing assembly, for the roller bearing, has a bearing support that forms the movable bearing element and has a lever arm having a free end that extends from a main body of the bearing support and on the gearbox housing lies against the second contact face in a second contact region,
wherein the main body of the bearing support has an eccentric cam that on the gearbox housing lies against the first contact face in a first contact region.