Forward Collision Avoidance Assistance System
First Claim
1. A forward collision avoidance assistance system comprising collision avoidance calculation means for calculating control information for judging the risk of collision between the host vehicle and the object detected in the host vehicle traveling direction based on the information on a host vehicle detected by the host vehicle information detection means and the information on the object detected by object information detection means, and calculating the control information for collision avoidance to be output to an actuator based on the result of the collision risk judgment;
- wherein the actuator is brake force control means capable of controlling the brake force of the host vehicle; and
wherein the collision avoidance calculation means causes the brake force control means to control the brake force of the host vehicle with the use of a collision-avoidable limit distance Δ
xctl2 determined based on a physical limit above which collision between the host vehicle and the object cannot be avoided and a jerk-limited collision avoidable distance Δ
xctl1 determined based on the acceleration and jerk generated on the host vehicle by the host vehicle'"'"'s object avoidance movement.
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Accused Products
Abstract
An object of the present invention is to provide a forward collision avoidance assistance system that attains the reduction of driver'"'"'s uncomfortable feeling and the improvement in drivability while ensuring the collision avoidance performance during operation for avoiding contact with an object.
A collision avoidance calculation unit 3 determines a risk of collision between a host vehicle and an object detected in the host vehicle traveling direction based on information about the host vehicle detected by a host vehicle information detection unit 1 and information about the object detected by an object information detection unit 2, and calculates control information for object avoidance to be output to an actuator 5 based on a result of collision risk judgment. The collision avoidance calculation unit 3 uses a collision-avoidable limit distance Δxctl2 determined based on a physical limit that can avoid collision with the object, and a jerk-limited collision avoidable distance Δxctl1 determined based on the acceleration and jerk generated on the host vehicle by object avoidance movement, to control the brake force generated on the host vehicle by a brake actuator 5.
87 Citations
13 Claims
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1. A forward collision avoidance assistance system comprising collision avoidance calculation means for calculating control information for judging the risk of collision between the host vehicle and the object detected in the host vehicle traveling direction based on the information on a host vehicle detected by the host vehicle information detection means and the information on the object detected by object information detection means, and calculating the control information for collision avoidance to be output to an actuator based on the result of the collision risk judgment;
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wherein the actuator is brake force control means capable of controlling the brake force of the host vehicle; and wherein the collision avoidance calculation means causes the brake force control means to control the brake force of the host vehicle with the use of a collision-avoidable limit distance Δ
xctl2 determined based on a physical limit above which collision between the host vehicle and the object cannot be avoided and a jerk-limited collision avoidable distance Δ
xctl1 determined based on the acceleration and jerk generated on the host vehicle by the host vehicle'"'"'s object avoidance movement. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A forward collision avoidance assistance system comprising collision avoidance calculation means for judging the risk of collision between the host vehicle and the object detected in the host vehicle traveling direction based on the information on the host vehicle detected by the host vehicle information detection means and the information on the object detected by object information detection means, and calculating the control information for collision avoidance to be output to an actuator based on the result of the collision risk judgment;
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wherein the actuator is brake force control means capable of controlling the brake force of the host vehicle and also lateral force control means capable of controlling the lateral force of the host vehicle; and wherein the collision avoidance calculation means causes the brake force control means to control the brake force and lateral force of the host vehicle with the use of a collision-avoidable limit distance Δ
xctl2 determined based on a physical limit above which collision between the host vehicle and the object cannot be avoided and a jerk-limited collision avoidable distance Δ
xctl1 determined based on the acceleration and jerk generated on the host vehicle by the host vehicle'"'"'s object avoidance movement. - View Dependent Claims (11, 12, 13)
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Specification