Title:
油圧式のギア比可変パワーステアリング装置
Document Type and Number:
Japanese Patent JP4483327
Kind Code:
B2
Abstract:
A variable gear ratio hydraulic power steering device 1 is provided with a variable ratio transmission mechanism 7 having a drive motor 70; a flow volume control valve 41 for controlling the discharge flow volume of an oil pump 10 which circulates operating fluid; and a steering angle sensor 310 for measuring a handle steering angle input to a steering handle 31. A valve controlling controller 50 is constructed to take thereinto a measured ACT angle which is the rotational angle of the drive motor 70 and to calculate a target ACT angle for the drive motor 70 based on the handle steering angle. Further, the valve controlling controller 50 controls the flow volume control valve 41 to make the discharge flow volume equal to or greater than a predetermined flow volume when the magnitude of a difference ACT angle which is the difference between the target ACT angle and the measured ACT angle is equal to or greater than a threshold value.
Inventors:
Kazumasa Kodama
Kei Jun
Satoru Mikamo
Kei Jun
Satoru Mikamo
Application Number:
JP2004037223A
Publication Date:
June 16, 2010
Filing Date:
February 13, 2004
Export Citation:
Assignee:
JTEKT Corporation
International Classes:
B62D6/00; B62D1/16; B62D5/00; B62D5/04; B62D5/065; B62D5/07; B62D5/22; B62D101/00; B62D113/00; B62D117/00; B62D137/00
Domestic Patent References:
| JP62046766A | ||||
| JP5000675A | ||||
| JP62046765A | ||||
| JP2000302054A | ||||
| JP11321683A |
Attorney, Agent or Firm:
Yoshiyasu Takahashi
Tamiwa Iwakura
Tamiwa Iwakura