Steering Control Apparatus

摘要

A steering control apparatus is provided which suppresses possible vibration of a steering system resulting from differential steering processing when a steering angle or a steered angle has a large value. A differential steering processing circuit calculates a differential steering correction amount based on a difference value of a target steering angle, and increases or reduces the target steering angle using the calculated amount to obtain a target steered angle. A limiting reaction force setting processing circuit increases a limiting reaction force when a maximum value of the target steering angle and the target steered angle is equal to or larger than a common threshold. When the maximum value approaches the common threshold, an angle-sensitive gain setting processing circuit reduces an angle-sensitive gain so as to correct and reduce the differential steering correction amount.

主权项

1. A steering control apparatus that outputs an operation signal to a steering system, the steering control apparatus comprising:
a steering operation processing circuit that outputs an operation signal to the steering system to steer steered wheels of a vehicle, in accordance with operation of a steering wheel; and a differential steering processing circuit that executes increase and reduction processing for increasing or reducing an amount of steering operation performed on the steered wheels by the steering operation processing circuit according to a variation speed of a steering angle when the steering wheel is operated so as to vary the steering angle that is a rotation angle of the steering wheel, wherein the increase and reduction processing is processing for adding a correction amount in the same direction as the variation speed of the steering angle to the amount of steering operation, and the differential steering processing circuit includes a steering limitation processing circuit that limits the increase and reduction processing when at least one of the steered angle of the steered wheels and the steering angle reaches a threshold.