Lane-keep control system for vehicle
First Claim
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1. A lane-keep control system for a host vehicle, comprising:
- a control unit configured, to detect an inter-vehicle distance between the host vehicle and an object ahead of the host vehicle, to execute an inter-vehicle distance control for bringing the inter-vehicle distance closer to a target inter-vehicle distance according to a driver'"'"'s demand, to detect a traveling condition of the host vehicle, to determine whether there is a tendency of a lane deviation indicative that the host vehicle is deviating from a traveling lane, according to the traveling condition, to execute a deviation avoidance control for controlling the host vehicle toward a deviation-avoiding direction of avoiding the lane deviation according to the traveling condition when there is the tendency of the lane deviation, to determine that the inter-vehicle distance control is being executed, to advance a start timing of the deviation avoidance control when the inter-vehicle distance control is being executed.
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Abstract
A lane-keep control system is installed in a host vehicle equipped with an inter-vehicle distance control system. The lane-keep control system is arranged to decrease a threshold to be compared with the vehicle traveling condition for determining the tendency of the lane deviation when the inter-vehicle distance is being executed, so that the deviation avoidance control during execution of the inter-vehicle distance control is started earlier than the deviation avoidance control during inexecution of the inter-vehicle distance is started.
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Citations
15 Claims
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1. A lane-keep control system for a host vehicle, comprising:
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a control unit configured, to detect an inter-vehicle distance between the host vehicle and an object ahead of the host vehicle, to execute an inter-vehicle distance control for bringing the inter-vehicle distance closer to a target inter-vehicle distance according to a driver'"'"'s demand, to detect a traveling condition of the host vehicle, to determine whether there is a tendency of a lane deviation indicative that the host vehicle is deviating from a traveling lane, according to the traveling condition, to execute a deviation avoidance control for controlling the host vehicle toward a deviation-avoiding direction of avoiding the lane deviation according to the traveling condition when there is the tendency of the lane deviation, to determine that the inter-vehicle distance control is being executed, to advance a start timing of the deviation avoidance control when the inter-vehicle distance control is being executed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A lane-keep control system for a host vehicle, comprising:
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a control unit configured, to detect an inter-vehicle distance between the host vehicle and an object ahead of the host vehicle, to execute an inter-vehicle distance control for bringing the inter-vehicle distance closer to a target inter-vehicle distance, to detect a traveling condition of the host vehicle, to determine whether there is a tendency of a lane deviation indicative that the host vehicle is deviating from a traveling lane, according to the traveling condition, to execute a deviation avoidance control for controlling the host vehicle toward a deviation-avoiding direction of avoiding the lane deviation according to the traveling condition when there is the tendency of the lane deviation, to limit execution of the deviation avoidance control according to a determination value corresponding to the inter-vehicle distance detected. - View Dependent Claims (13)
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14. A method of controlling a traveling condition of a host vehicle, the method comprising:
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detecting an inter-vehicle distance between the host vehicle and an object ahead of the host vehicle;
executing an inter-vehicle distance control for bringing the inter-vehicle distance closer to a target inter-vehicle distance;
detecting a traveling condition of the host vehicle;
determining whether there is a tendency of a lane deviation indicative that the host vehicle is deviating from a traveling lane, according to the traveling condition;
executing a deviation avoidance control for controlling the host vehicle toward a deviation-avoiding direction of avoiding the lane deviation according to the traveling condition when there is the tendency of the lane deviation;
determining that the inter-vehicle distance control is being executed; and
advancing a start of the deviation avoidance control when the inter-vehicle distance control is being executed.
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15. A lane-keep control system for a host vehicle, comprising:
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inter-vehicle distance detecting means for detecting an inter-vehicle distance between the host vehicle and an object ahead of the host vehicle;
inter-vehicle distance control means for executing an inter-vehicle distance control so as to bringing the inter-vehicle distance closer to a target inter-vehicle distance;
traveling-condition detecting means for detecting a traveling condition of the host vehicle;
lane-deviation determining means for determining whether there is a tendency of a lane deviation that the host vehicle is deviating from a traveling lane according to the traveling condition;
deviation-avoidance control means for executing a deviation avoidance control of controlling the host vehicle toward a deviation-avoiding direction of avoiding the lane deviation according to the traveling condition when there is the tendency of the lane deviation;
distance control operation detecting means for detecting that the inter-vehicle distance control means is in operative state; and
control start-timing changing means for changing a first start timing, at which the deviation avoidance control during execution of the inter-vehicle distance control is started, to a timing earlier than a second start timing at which the deviation avoidance control is started under a condition that the inter-vehicle distance control is not executed, the first and second start timings being determined on the basis of a determination result of the lane-deviation determining means.
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Specification