公开(公告)号：US20030136604A1

公开(公告)日：2003-07-24

申请号：US10319825

申请日：2002-12-16

Applicant: UNISIA JKC STEERING SYSTEMS CO, LTD.

Inventor： Kohei Yamanaka ,  Mamoru Ichikawa

IPC: B62D005/04

CPC classification number: G01L5/221 ,  B62D5/0403 ,  B62D5/0409 ,  B62D6/10 ,  G01L3/105

Abstract: An electric power steering apparatus is disclosed. The apparatus features a first shaft and a second shaft connected by an elastic member. A first detecting member is coupled to the second shaft, and made of magnetic material with a plurality of radial notched portions defining a number of slots. A pair of second detecting members are coupled to the first shaft and positioned on both sides of the first detecting member, and made of conductive and non-magnetic material with a plurality of radial notched portions defining a like number of slots. A pair of detecting coils are axially positioned on both sides of a set of the first and second detecting members. A housing accommodates the first and second detecting members, the detecting coils, and holds yokes in a fixed position. The largest outer diameter of the first shaft is smaller than each of the inner diameters of the first detecting member, the second detecting member and the yokes, thereby improving the assembling of the electric power steering apparatus.

Abstract translation: 公开了一种电动助力转向装置。 该装置具有通过弹性构件连接的第一轴和第二轴。 第一检测构件联接到第二轴，并由具有限定多个狭槽的多个径向切口部分的磁性材料制成。 一对第二检测构件联接到第一轴并且位于第一检测构件的两侧，并且由具有限定相同数量的槽的多个径向切口部分的导电和非磁性材料制成。 一对检测线圈轴向定位在一组第一和第二检测构件的两侧。 壳体容纳第一和第二检测构件，检测线圈，并将轭架保持在固定位置。 第一轴的最大外径小于第一检测构件，第二检测构件和轭的内径中的每一个，从而改善电动助力转向装置的组装。