Collision avoidance device
First Claim
1. A collision avoidance device that prevents wasteful collision avoidance control and wasteful issuance of warnings, the device comprising:
- a sensor to detect information around an own vehicle;
an object detector to detect an object from the information;
a lane detector to detect a traveling lane;
a driving assisting unit that assists a driver so as to prevent the own vehicle from departing the lane;
a collision judging unit that judges a collision probability between the own vehicle and the object;
a judging method changing unit that changes a method for judging the collision probability by the collision judging unit;
a collision avoidance unit that performs a control to avoid the collision;
a warning control unit that issues a collision warning; and
an electronic control unit having control logic which, when executed, determines whether the driver is assisted by the driving assisting unit, wherein;
when the electronic control unit determines that the driver is assisted by the driving assisting unit, the judging method changing unit changes the method for judging the collision probability by the collision judging unit such that the collision judging unit then makes a determination that the collision probability between the own vehicle and an object outside the lane is low, and at least one of the warning control unit does not issue the collision warning and the collision avoidance unit does not perform the control to avoid the collision; and
when the electronic control unit determines that the driver is not assisted by the driving assisting unit, the judging method changing unit changes the method for judging the collision probability by the collision judging unit such that the collision judging unit then makes the determination that the collision probability between the own vehicle and the object outside the lane is higher than when the electronic control unit determines that the driver is assisted by the driving assisting unit, and at least one of the warning control unit issues the collision warning and the collision avoidance unit performs the control to avoid the collision.
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Accused Products
Abstract
A collision avoidance ECU estimates a traveling locus based on an estimated curve radius of an own vehicle in a basic traveling locus estimating unit, and in a changed traveling locus estimating unit, obtains separation distances between an own vehicle and white lines based on the relative positional relationship between an own vehicle and the white lines, and estimates, as a changed traveling locus, a route along the white lines with the obtained separation distances maintained. In a collision judging unit, when auto-steering control and departure warning control are not performed, collision judgment is performed based on the basic traveling locus estimated in the basic traveling locus estimating unit, and when the auto-steering control and departure warning control are performed, the traveling locus is changed to the changed traveling locus estimated in the changed traveling locus estimating unit and collision judgment is performed.
43 Citations
13 Claims
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1. A collision avoidance device that prevents wasteful collision avoidance control and wasteful issuance of warnings, the device comprising:
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a sensor to detect information around an own vehicle; an object detector to detect an object from the information; a lane detector to detect a traveling lane; a driving assisting unit that assists a driver so as to prevent the own vehicle from departing the lane; a collision judging unit that judges a collision probability between the own vehicle and the object; a judging method changing unit that changes a method for judging the collision probability by the collision judging unit; a collision avoidance unit that performs a control to avoid the collision; a warning control unit that issues a collision warning; and an electronic control unit having control logic which, when executed, determines whether the driver is assisted by the driving assisting unit, wherein; when the electronic control unit determines that the driver is assisted by the driving assisting unit, the judging method changing unit changes the method for judging the collision probability by the collision judging unit such that the collision judging unit then makes a determination that the collision probability between the own vehicle and an object outside the lane is low, and at least one of the warning control unit does not issue the collision warning and the collision avoidance unit does not perform the control to avoid the collision; and when the electronic control unit determines that the driver is not assisted by the driving assisting unit, the judging method changing unit changes the method for judging the collision probability by the collision judging unit such that the collision judging unit then makes the determination that the collision probability between the own vehicle and the object outside the lane is higher than when the electronic control unit determines that the driver is assisted by the driving assisting unit, and at least one of the warning control unit issues the collision warning and the collision avoidance unit performs the control to avoid the collision. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for preventing wasteful collision avoidance control and wasteful issuance of warnings, using a collision avoidance device that includes an electronic control unit having control logic that is configured to perform the method, the method comprising:
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detecting information around an own vehicle; detecting an object from the information; detecting a traveling lane; changing a method for judging a collision probability; judging the collision probability between the own vehicle and the object; and determining whether the driver is assisted by a driving assisting unit, wherein; when the electronic control unit determines that the driver is assisted by the driving assisting unit, the method for judging the collision probability is changed such that the collision probability between the own vehicle and the object outside the lane is low, and at least one of a warning control unit does not issue a collision warning and a collision avoidance unit does not perform a control to avoid the collision; and when the electronic control unit determines that the driver is not assisted by the driving assisting unit, the method for judging the collision probability is changed such that the collision probability between the own vehicle and the object outside the lane is higher than when the electronic control unit determines that the driver is assisted by the driving assisting unit, and at least one of the warning control unit issues the collision warning and the collision avoidance unit performs the control to avoid the collision.
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Specification