| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electric power steering device capable of improving steering feeling while performing sufficient convergence control as required. <P>SOLUTION: A convergence control part 20 determines a basic damping compensation current value Idco in accordance with steering speed ω and a vehicle speed detection value Vs by a damping compensation current computing part 202, determines damping compensation current gain Gc by a gain determining part 204 depending on steering condition, and outputs a value obtained by multiplying the basic damping compensation current value Idco by the damping compensation current gain Gc as a damping compensation value Idc. At this time, the gain determining part 204 depending on steering condition detects a condition in which steering amount lθl is reduced after increasing from a neutral point within predetermined time TmO and a steering torque detection value Ts is below a predetermined value TsO as a specific steering condition, outputs a first gain value G1 which is a comparatively small value in a condition other than the specific steering condition, and outputs a second gain value G2 which is a large value in the specific steering condition. <P>COPYRIGHT: (C)2004,JPO |
