公开(公告)号：EP3444169A1

公开(公告)日：2019-02-20

申请号：EP18189509.5

申请日：2018-08-17

申请人： Kelsey-Hayes Company

发明人： Neuhaus, Richard ,  Mote, Vidya Sagar

IPC分类号： B62D15/02

摘要： An absolute steering angle sensor comprises a single main gear, wherein the main gear has first gear teeth with a first pitch, second gear teeth with a second pitch, and the first and second gear pitches are different; a first magnet gear driven by the first gear teeth, wherein the first magnet gear has a first gear profile and a first diameter; a second magnet gear driven by the second gear teeth, wherein the second magnet gear has a second gear profile and a second diameter, the first and second gear profiles are different, and the first and second diameters are different; a first magnet rotating with the first magnet gear and emitting a first magnetic field; a second magnet rotating with the second magnet gear and emitting a second magnetic field; and a sensor assembly measuring strengths of the first and second magnetic fields and calculating an absolute steering angle.