Navigation control system with adaptive characteristics
First Claim
1. A navigation control system for an automotive vehicle running on a road, comprising:
- deviation detecting means for detecting that the vehicle has deviated or is going to deviate from a lane of the road;
deviation suppressing means for suppressing the vehicle from deviating from the lane;
detection means for detecting a predetermined condition affecting deviation of the vehicle from the lane; and
control means for computing a control amount for suppressing the deviation of the vehicle based on a result of detection by said deviation detecting means, for determining a urgency rating for said deviation suppressing based on said detected predetermined condition and said control amount, and for controlling said deviation suppressing means on the basis of a result of the computing the control amount, said deviation suppressing means being controlled by altering a time for operating said deviation suppressing means in accordance with said urgency rating for said deviation suppressing.
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Accused Products
Abstract
When the vehicle has deviated or is deviating from a lane on which the vehicle has been or is running, the deviation of the vehicle from the lane can be suppressed, for example, by allowing the steering wheel to be operatively rotated prior to an intention of the operator. The timing of suppressing the deviation of the vehicle can be altered in accordance with conditions including, for example, the existence of a lane in the direction of deviation of the vehicle on which another vehicle is running in the same direction, the existence of an obstacle in the direction of deviation of the vehicle, the existence of an adjacent lane in the direction of deviation of the vehicle on which another vehicle is running in the opposite direction, a state of the lane on which the vehicle is running, such as a curved lane or a straight lane, a direction of deviation is outside or inside the curved lane or a lane width, a vehicle speed, a steering angle of a steering wheel, an extent of vision, and so on.
370 Citations
37 Claims
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1. A navigation control system for an automotive vehicle running on a road, comprising:
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deviation detecting means for detecting that the vehicle has deviated or is going to deviate from a lane of the road; deviation suppressing means for suppressing the vehicle from deviating from the lane; detection means for detecting a predetermined condition affecting deviation of the vehicle from the lane; and control means for computing a control amount for suppressing the deviation of the vehicle based on a result of detection by said deviation detecting means, for determining a urgency rating for said deviation suppressing based on said detected predetermined condition and said control amount, and for controlling said deviation suppressing means on the basis of a result of the computing the control amount, said deviation suppressing means being controlled by altering a time for operating said deviation suppressing means in accordance with said urgency rating for said deviation suppressing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A navigation control system for an automotive vehicle, which is running on a lane of road, comprising:
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means for determining adjacent or opposite road lane conditions on the road different than the lane on which the vehicle is running; means for setting predetermined control parameters for automatic vehicle steering control based on said adjacent or Opposite road lane conditions determined by said determining means, said control parameters varying with said adjacent or opposite road lane conditions; means for detecting a predetermined state affecting deviation of the vehicle from the lane and comparing said predetermined State with said control parameters; and deviation suppressing means for suppressing the vehicle'"'"'s deviation from the lane when the predetermined state affecting deviation exceeds a threshold associated with said predetermined state.
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Specification