Patent ID: 7539567
Filing Date: 2009-05-26
Classification: B62D

Abstract:
1. An electric power steering control apparatus comprising: a steering system including a steering wheel; a torque sensor that detects steering torque applied to said steering system as torque information; a motor that generates assist torque for said steering system; a calculation section that calculates a motor current command value for said motor based on said torque information at each predetermined sampling period; and a motor current control section that drives and controls said motor based on said motor current command value; wherein said calculation section includes: a first target current calculation section that calculates a first target current based on said torque information detected from said torque sensor in a time series manner at a first control period corresponding to said sampling period; and a second target current calculation section that calculates a second target current based on said first target current at a second control period that is shorter than said first control period; and wherein said motor current control section controls said motor by using said second target current as said motor current command value.