Steering Control Device And Electric Power Steering Device

Abstract: A steering control device (11) comprises: a target steering torque setting unit (22) that sets a target steering torque; a calculation unit (23) that calculates an assist steering torque which causes a steering torque to follow the target steering torque; and a current drive unit (12) that controls a current which flows through a motor to generate the assist steering torque. The target steering torque setting unit is provided with: a first torque calculation unit that determines a first torque on the basis of a post-shift steering angle, which is obtained by multiplying the rotational angular velocity of the motor by a steering angle gain to calculate a first shift amount that is the shift amount of the steering angle of the steering wheel and then adding the first shift amount to the steering angle, and a base map, in which a base torque exhibits the characteristic of gradually increasing in accordance with the post-shift steering angle; a second torque calculation unit that uses the rotational angular velocity of the motor to determine a second torque for imparting hysteresis to the target steering torque; and a target steering torque calculation unit that adds the first torque and the second torque and outputs the target steering torque.

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