发明授权
US08554412B2 Electric power steering apparatus, control method thereof and program
有权
电动助力转向装置及其控制方法和程序
- 专利标题： Electric power steering apparatus, control method thereof and program
- 专利标题（中）： 电动助力转向装置及其控制方法和程序
-
申请号： US13055316申请日： 2010-06-16
-
公开(公告)号： US08554412B2公开(公告)日： 2013-10-08
- 发明人: Narimasa Hosoya , Shunya Senda , Fumiaki Ishikawa
- 申请人： Narimasa Hosoya , Shunya Senda , Fumiaki Ishikawa
- 申请人地址： JP Saitama
- 专利权人： Showa Corporation
- 当前专利权人： Showa Corporation
- 当前专利权人地址： JP Saitama
- 代理机构： Morgan, Lewis & Bockius LLP
- 优先权： JP2009-281343 20091211
- 国际申请： PCT/JP2010/060210 WO 20100616
- 国际公布： WO2011/070812 WO 20110616
- 主分类号： B62D5/04
- IPC分类号： B62D5/04
摘要：
Provided are: an electric motor that applies steering assist force to a steering wheel; a target current determination unit 25 that calculates a target current to be supplied to the electric motor on the basis of steering torque of the steering wheel; and a correction unit 27 that, when a rotation speed of the electric motor is less than a predetermined rotation speed, corrects the target current calculated by the target current determination unit 25 to be reduced on the basis of an actual current supplied to the electric motor and a time during which the actual current is supplied. Thereby a technique is provided to suppress a failure of the electric motor due to an excessive current flowing through the electric motor with higher accuracy.
公开/授权文献
信息查询
IPC分类:
