Method for reducing the risk of a collision between a vehicle and a first external object
First Claim
Patent Images
1. A method comprising:
- operating a collision avoidance system of a host vehicle to assess a dynamic state of a first external object;
continually establishing, based on the dynamic state of the first external object, a first value of a delay period within which initiation of an emergency maneuver is necessary to avoid or mitigate a collision between the host vehicle and the first external object;
detecting, during the delay period, whether a collision situation exists involving the first external object relative to a second external object; and
if the collision situation is detected, reducing the delay period to a second value less than the first value.
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Abstract
A method for reducing the risk of a collision between a vehicle and at least a first external object is contemplated. The risk of a collision may be reduced with use of a collision avoidance system having a detection unit adapted to issue a control signal in the event it detects a collision involving a first external object in a vicinity of the host vehicle, and an action unit adapted to operate the collision avoidance system such that an emergency maneuver can be initiated by the collision avoidance system at an earlier stage if the control signal is issued, as compared to when no control signal is issued.
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Citations
16 Claims
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1. A method comprising:
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operating a collision avoidance system of a host vehicle to assess a dynamic state of a first external object; continually establishing, based on the dynamic state of the first external object, a first value of a delay period within which initiation of an emergency maneuver is necessary to avoid or mitigate a collision between the host vehicle and the first external object; detecting, during the delay period, whether a collision situation exists involving the first external object relative to a second external object; and if the collision situation is detected, reducing the delay period to a second value less than the first value. - View Dependent Claims (2, 3, 4)
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5. A collision avoidance system for a vehicle comprising:
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a state assessment unit assessing a dynamic state of a first external object; a detection unit detecting that a collision situation exists involving the first external object relative to a second external object, and issuing a control signal if the collision situation exists; and an action unit a) continually establishing, based on the dynamic state of the first external object, a first value for a delay period within which initiation by the vehicle of an emergency maneuver is necessary to avoid or mitigate a second collision between the vehicle and the first external object;
b) reducing the delay period to a second value less than the first value in response to the control signal; and
c) initiating the emergency maneuver when the delay period expires. - View Dependent Claims (6, 7, 8, 9, 10, 11)
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12. A computer program stored in a non-transitory readable storage unit and adapted to be used in a collision avoidance system of a host vehicle, said collision avoidance system comprising a detection unit and an action unit, said computer program comprising instruction sets for:
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assessing a dynamic state of a first external object located in a vicinity of the host vehicle; continually establishing, based on the dynamic state of the first external object, a first value for a delay period within which initiation of an emergency maneuver is necessary to avoid or mitigate a collision between the host vehicle and the first external object; receiving a signal from the detection unit indicating whether the first external object is in a collision situation relative to a second external object; reducing the delay period to a second value less than the first value if the collision situation exists; and transmitting a second signal to the action unit to initiate an emergency maneuver by the host vehicle at expiration of the delay period. - View Dependent Claims (13, 14)
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15. An electronic control unit operative to:
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assess a dynamic state of a first external object located in a vicinity of a host vehicle; continually establish, based on the dynamic state of the first external object, a first value for a delay period within which initiation of an emergency maneuver is necessary to avoid or mitigate a second collision between the host vehicle and the first external object; detect whether the first external object is in a collision situation relative to a second external object; reduce the delay period to a second value less than the first value if the collision situation exists; and operate a collision avoidance system of said vehicle to initiate the emergency maneuver at expiration of the delay period. - View Dependent Claims (16)
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Specification