Automatic steering system for vehicle
First Claim
1. An automatic steering system for a vehicle, comprising:
- a movement locus setting means for storing a locus of movement of the vehicle to a target position,an actuator for steering a wheel of the vehicle in accordance with the locus of movement set by said movement locus setting means, without a driver'"'"'s steering operation, anda steering angle maintaining means coupled to said actuator for controlling said actuator, such that a steering angle of said wheel is maintained constant, after the vehicle has been moved to said target position.
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Accused Products
Abstract
A vehicle is prevented from being moved in an unanticipated direction at a target position or a moving direction reversing position on a locus of movement based on an automatic steering operation. When a vehicle has been moved from a start position through a moving-direction reversing position to reach a target position by automatic steering control for moving the vehicle along a previously stored locus of movement, thereby finishing the automatic steering control, a driver further moves the vehicle backwards from the target position to a parking position. At this time, if the driver has his or her hands released from a steering wheel, and the course of movement of the vehicle is disturbed due to an external disturbance such as an undulation in the road surface, the steering angle of a wheel is maintained so that it is not varied from a steering angle at the target position. Further, even when the vehicle has been moved to a position past the moving direction reversing position, the steering angle of the wheel is maintained at the steering angle at the moving direction reversing position.
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Citations
12 Claims
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1. An automatic steering system for a vehicle, comprising:
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a movement locus setting means for storing a locus of movement of the vehicle to a target position, an actuator for steering a wheel of the vehicle in accordance with the locus of movement set by said movement locus setting means, without a driver'"'"'s steering operation, and a steering angle maintaining means coupled to said actuator for controlling said actuator, such that a steering angle of said wheel is maintained constant, after the vehicle has been moved to said target position. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12)
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2. An automatic steering system for a vehicle, comprising:
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a movement locus setting means for storing a locus of movement of the vehicle to a target position, an actuator for steering a wheel of the vehicle in accordance with the locus of movement set by said movement locus setting means, without a driver'"'"'s steering operation, and a steering angle maintaining means coupled to said actuator for controlling said actuator, such that a steering angle of said wheel is maintained constant, after the vehicle has been moved to a moving-direction reversing position on said locus of movement.
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3. An automatic steering system for a vehicle, comprising:
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a movement locus setting means for calculating a locus of movement of the vehicle to a target position, an actuator for steering a wheel of the vehicle in accordance with the locus of movement set by said movement locus setting means, without a driver'"'"'s steering operation, and a steering angle maintaining means coupled to said actuator for controlling said actuator, such that a steering angle of said wheel is maintained constant, after the vehicle has been moved to said target position.
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4. An automatic steering system for a vehicle, comprising:
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a movement locus setting means for calculating a locus of movement of the vehicle to a target position, an actuator for steering a wheel of the vehicle in accordance with the locus of movement set by said movement locus setting means, without a driver'"'"'s steering operation, and a steering angle maintaining means coupled to said actuator for controlling said actuator such that a steering angle of said wheel is maintained constant, after the vehicle has been moved to a moving-direction reversing position on said locus of movement.
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Specification