| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electric power steering device which suppresses vibration without delay and provides improved steering feelings. <P>SOLUTION: An ECU 23 includes: a microcomputer 41 which outputs a motor control signal; and a drive circuit 42 which supplies drive power to a motor 21 on the basis of the motor control signal. The microcomputer 41 includes a motor control signal output section 44 including: an F/B control section 57 which calculates a voltage command value V* by multiplying a current deviation ΔI by an F/B gain K; and a PWM conversion section 58 which generates the motor control signal on the basis of the voltage command value V*. The motor control signal output section 44 includes an F/B gain calculation part 61 which changes a value of the F/B gain K into low response value when a vehicle is in a straight moving state. <P>COPYRIGHT: (C)2013,JPO&INPIT |
