Steering control apparatus
Abstract:
A steering control apparatus controls an assistance torque outputted by a motor connected to a steering system mechanism that generates a steering torque. In the steering control apparatus, a load calculating unit estimates or detects a load acting on a steering shaft of the steering system mechanism. A target steering torque calculating unit calculates a target steering torque that is a target value of the steering torque, based on the estimated or detected load. A servo controller calculates a command value of the assistance torque such that a torque deviation that is a difference between the steering torque and the target steering torque is zero. A band correcting unit includes a band correction filter that extracts a component of a specific frequency band during a process of calculation from the load to the target steering torque, and corrects a gain of a predetermined transfer function at the extracted band.
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