STEERING CONTROL DEVICE

摘要

A steering control device restrains not only a steered angle but also a steering angle from exceeding their upper limit values. A maximum value selection circuit selects a maximum value of a target steered angle and a target steering angle as an end angle and outputs the end angle to a limiting reaction force setting circuit. The limiting reaction force setting circuit increases a limiting reaction force rapidly if the end angle becomes equal to or larger than a common threshold. A target steering angle setting circuit sets a target steering angle based on torque applied to the steering minus the limiting reaction force etc. A steering angle control circuit sets reaction torque as a manipulated variable for feedback controlling the steering angle to the target steering angle. An operation signal generation circuit outputs an operation signal to a reaction force motor so as to achieve the reaction torque.

主权项

1. A steering control device that outputs an operation signal to a steering device in which a steering angle ratio is variable, the steering angle ratio being a ratio of a steered angle of a steered wheel of a vehicle to a steering angle that is a rotation angle of a steering, the steering control device comprising:
a steering angle obtaining circuit that obtains the steering angle; a steered angle obtaining circuit that obtains the steered angle; and a steering limiting circuit that performs limiting control to urge a user to stop operating the steering to a side where the steering angle further increases when a disjunction of a condition that the obtained steered angle reaches a steered angle threshold and a condition that the obtained steering angle reaches a steering angle threshold is true.