发明申请
- 专利标题： Motor-driven power steering apparatus
- 专利标题（中）： 电动助力转向装置
-
申请号： US11716275申请日： 2007-03-09
-
公开(公告)号： US20080217098A1公开(公告)日： 2008-09-11
- 发明人: Yoshinori Takeuchi , Yoshitaka Kubo , Shunya Senda
- 申请人： Yoshinori Takeuchi , Yoshitaka Kubo , Shunya Senda
- 专利权人： SHOWA CORPORATION
- 当前专利权人： SHOWA CORPORATION
- 主分类号： B62D5/04
- IPC分类号： B62D5/04
摘要：
In a motor-driven power steering apparatus, there is provided a correction coefficient memory previously storing an output correction coefficient to be multiplied by a current control signal applied to an electric motor at certain points in a range of temperatures in such a manner as to correct a temperature dependent output torque changing in dependence upon an environmental temperature of the electric motor to a demand output torque required in the electric motor. A temperature sensor for detecting the environmental temperature of the electric motor is provided, a correction coefficient computing circuit for reading the output correction coefficient corresponding to the temperature detected by the temperature sensor from the correction coefficient memory is provided, and a current control computing means for calculating a corrected current control signal by multiplying the current control signal of the electric motor computed on the basis of a steered condition of a vehicle by the output correction coefficient read from the correction coefficient computing circuit is provided. The drive control signal is output based on the corrected current control signal to the motor driving means.
公开/授权文献
- US08019508B2 Motor-driven power steering apparatus 公开/授权日：2011-09-13
信息查询
IPC分类:
