公开(公告)号：US11548547B2

公开(公告)日：2023-01-10

申请号：US16862745

申请日：2020-04-30

Applicant: Steering Solutions IP Holding Corporation

Inventor： Yin Weimin ,  Kun Yang ,  Pierre C. Longuemare ,  Eric Pattok

IPC: B62D5/04 ,  B62D15/02 ,  B62D6/10

Abstract: Technical solutions for a motor assembly for an electric power steering system are provided. The motor assembly comprises a motor configured to rotate a motor shaft to apply a drive torque to an output shaft of a steering column. The motor assembly also comprises a circuit card assembly including a torque and angle sensor disposed upon a printed circuit board and configured to measure a differential angle between rotational positions of the output shaft and an input shaft. The printed circuit board of the circuit card assembly is disposed perpendicular to a rotational axis of the steering column. The motor assembly also comprises an enclosure coupled to the motor and containing the circuit card assembly and a worm shaft coupled to rotate with the motor shaft and having a worm disposed helically thereabout for driving a worm gear coupled to the output shaft.