ELECTRIC POWER STEERING DEVICE

PROBLEM TO BE SOLVED: To provide a technology capable of inexpensively reducing a burden of a driver during a vehicle body skidding.SOLUTION: An electric power steering device includes: a basic target current calculating portion which sets a basic target current becoming a base of a target current supplied to an electric motor on the basis of steering torque detected by a torque sensor 109; a basic vehicle body skidding base correcting current which becomes a base of a vehicle body skidding correcting current for correcting the basic target current according to the steering torque detected by the torque sensor; a vehicle body skidding correcting current calculating portion 28 which sets a vehicle body skidding correcting current on the basis of steering difference between an estimated steering angle estimated by difference between rotation speed of left side wheels disposed on the left side of the vehicle and right side wheels disposed on the right side, and a detected steering angle detected by a steering angle sensor 180; and a target current deciding portion which decides a target current on the basis of the basic target current set by the basic target current calculating portion and the vehicle body skidding correcting current set by the vehicle body skidding correcting current calculating portion 28.SELECTED DRAWING: Figure 6 【課題】低廉に車体流れ時の運転者の負担を軽減することができる技術を提供する。【解決手段】トルクセンサ１０９が検出した操舵トルクに基づいて電動モータに供給する目標電流のベースとなる基本目標電流を設定する基本目標電流算出部と、トルクセンサが検出した操舵トルクに応じて基本目標電流を補正する車体流れ補正電流の基本となる基本車体流れベース補正電流と、車両の左側に配置された左側車輪の回転速度と右側に配置された右側車輪の回転速度との差に基づいて推定した推定舵角と、舵角センサ１８０が検出した検出舵角との舵角偏差とに基づいて車体流れ補正電流を設定する車体流れ補正電流算出部２８と、基本目標電流算出部が設定した基本目標電流と車体流れ補正電流算出部２８が設定した車体流れ補正電流とに基づいて目標電流を決定する目標電流決定部とを備える。【選択図】図６