公开(公告)号：EP0410583B1

公开(公告)日：1993-09-01

申请号：EP90307054.8

申请日：1990-06-28

申请人： GENERAL MOTORS CORPORATION

发明人： Schroeder, Allen G. ,  Schroeder, Thaddeus ,  Karadsheh, Sam M. ,  Goings, Janet S. ,  Golebiewski, Ronald T.

IPC分类号： B62D15/02 ,  B62D3/12 ,  B62D5/22

CPC分类号： B62D15/02 ,  B62D5/22

公开(公告)号：EP0410583A1

公开(公告)日：1991-01-30

申请号：EP90307054.8

申请日：1990-06-28

申请人： GENERAL MOTORS CORPORATION

发明人： Schroeder, Allen G. ,  Schroeder, Thaddeus ,  Karadsheh, Sam M. ,  Goings, Janet S. ,  Golebiewski, Ronald T.

IPC分类号： B62D15/02 ,  B62D3/12 ,  B62D5/22

CPC分类号： B62D15/02 ,  B62D5/22

摘要： A noncontacting automotive steering angle sensor involving the application of a two element (136,138) magnetoresistive sensor to an otherwise conventional rack and pinion steering gear (10). The rack (42) is directly coupled to the steerable wheels, and the sensor is integrally mounted in a spring-loaded rack contacting mechanism (contact shoe) (92) used to maintain a meshing engagement between the pinion gear (28) and the rack. A variable permeability surface (100) is formed on the surface of the rack along the travel path of the sensor such that axial movement of the rack differentially varies the magnetic flux density detected by each element of the sensor. A detector circuit (122) comprising a bridge or simple voltage divider responsive to the differential resistances of the sensor elements develops an electrical signal indicative of the rack position.

摘要翻译： 一种非接触式汽车转向角传感器，涉及将两个元件（136,138）磁阻传感器应用于另外传统的齿轮齿条转向齿轮（10）。 齿条（42）直接联接到可转向轮上，传感器整体安装在弹簧加载的齿条接触机构（接触靴）（92）中，用于保持小齿轮（28）和齿条 。 沿着传感器的行进路径在齿条的表面上形成可变磁导率表面（100），使得齿条的轴向移动可以差别地改变由传感器的每个元件检测到的磁通密度。 响应于传感器元件的差分电阻的包括桥或简单分压器的检测器电路（122）产生指示机架位置的电信号。