Vehicle steering control system
AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorManabu Ikegaya
Life of this patent
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Abstract
A vehicle steering control system for conducting a steering assistance control, in which it is determined whether the vehicle operator has the intention to drive the vehicle by himself. This is done by discriminating the intention using the vehicle lateral deviation, the steering torque and the steering torque change. When it is discriminated that the vehicle operator does not have the intention in two or more discriminations, it is finally determined that the vehicle operator does not have the intention and the vehicle operator is alerted and/or the steering assistance control is discontinued, thereby preventing the vehicle operator from depending on the steer assist torque control excessively.
Claims8
A system for controlling steering of a vehicle having an actuator which turns steered wheels of the vehicle;
- comprising:
- an image sensor mounted on the vehicle for taking an image ahead of the vehicle;
- lane detecting means for detecting a lane on which the vehicle travels based on outputs of the image sensor;
- and
- steering assist torque control means for calculating a steering assist torque and conducting a steering assist control to operate the actuator such that the vehicle runs along the lane;
- wherein
- the improvement comprises:
- the system includes:
- lateral deviation detecting means for detecting a lateral deviation of the vehicle from a reference line of the lane;
- and
- intention determining means for determining whether an operator of the vehicle has an intention to drive the vehicle based on at least the detected lateral deviation;
- and wherein the steering assist torque control means conducts at least one of alerting the operator and discontinuing the steering assist control, when it is determined by the intention determining means that the operator does not have the intention to drive the vehicle.
Dependencies are inferred from the claim text.