Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Takashi Kuribayashi0
Atsuhiko Yoneda0
Masanori Takagi0
Date of Patent
March 13, 2007
0Patent Application Number
104396060
Date Filed
May 16, 2003
0Patent Primary Examiner
Patent abstract
An electric power steering apparatus is provided, which has a first device for detection of steering torque, a motor, a motor drive unit, a second device for determining a target current based upon at least a signal of steering torque, a third device for detection of a motor current, and a control unit for generating a signal for motor drive based upon at least a deviation between the target current and motor current and transmitting the signal for motor drive to the motor drive unit. The apparatus has a feature that the control unit includes a fourth device for weakening a magnetic field within the motor according to the deviation or a value computed based upon the deviation.
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