发明公开
EP0349116A2 Electromagnetic control apparatus for varying the driver steering effort of a hydraulic power steering apparatus
失效
用于改变由液压动力转向的驾驶员施加的转向力电磁控制装置。
- 专利标题： Electromagnetic control apparatus for varying the driver steering effort of a hydraulic power steering apparatus
- 专利标题（中）： 用于改变由液压动力转向的驾驶员施加的转向力电磁控制装置。
-
申请号： EP89305169.8申请日： 1989-05-23
-
公开(公告)号： EP0349116A2公开(公告)日： 1990-01-03
- 发明人: Zuraski, Jeffery Alan , Graber, David Wayne , Pawlak, Andrzej Marian , Babineau, James Wallace
- 申请人： GENERAL MOTORS CORPORATION
- 申请人地址： General Motors Building 3044 West Grand Boulevard Detroit Michigan 48202 US
- 专利权人： GENERAL MOTORS CORPORATION
- 当前专利权人： GENERAL MOTORS CORPORATION
- 当前专利权人地址： General Motors Building 3044 West Grand Boulevard Detroit Michigan 48202 US
- 代理机构： Denton, Michael John
- 优先权： US211738 19880627
- 主分类号： B62D5/06
- IPC分类号： B62D5/06 ; B62D6/02
摘要：
A hydraulic power steering apparatus having conventional relatively rotatable valve spool (54) and valve body (64) elements for flow regulation, and an integral electromagnetic mechanism (92) which effectively varies the centring force between the valve spool and valve body to adjust the level of steering assist provided for a given operator steering input. The electromagnetic mechanism includes a rotary magnetic circuit (100) and a stationary magnetic circuit (102). The rotary magnetic circuit comprises a pair of axially displaced magnetic pole pieces (106,108) which rotate with the pinion shaft (28) and a permanent magnet disk element (104) which is disposed between the pole pieces and which rotates with the input shaft (18). The stationary magnetic circuit includes an annular exciting coil (130) disposed about the rotary magnetic circuit and ferromagnetic pole elements (134-139) adjacent each of the rotary pole pieces. The exciting coil is energized so as to vary the valve body/valve spool centring force, and hence the driver steering effort, with vehicle speed.
公开/授权文献
信息查询
IPC分类:
