Vehicle drive assist system
First Claim
1. A vehicle drive assist system, comprising:
- front vehicle information detecting means for detecting front vehicle information;
rear vehicle information detecting means for detecting rear vehicle information;
front-end collision risk calculating means for calculating a front-end collision risk against the front vehicle by concerning at least an element of a relative speed between the front vehicle and a subject vehicle;
rear-end collision risk calculating means for calculating a rear-end collision risk by the rear vehicle by concerning at least an element of a relative speed between the rear vehicle and the subject vehicle with a larger weight than a weight of the element of the relative speed in the front-end collision risk against the front vehicle; and
control means for performing travel control in accordance with the front-end collision risk against the front vehicle and the rear-end collision risk by the rear vehicle.
3 Assignments
0 Petitions
Accused Products
Abstract
A control unit sets a front-end collision risk of a subject vehicle against a front vehicle in accordance with a time headway of the subject vehicle and a margin time to front-end collision of the subject vehicle, and a rear-end collision risk of the subject vehicle by a rear vehicle in accordance with a time headway of the rear vehicle and a margin time to rear-end collision of the subject vehicle, the margin time to rear-end collision having a larger weight than that of the margin time to front-end collision in the front-end collision risk against the front vehicle. Brake control and alarm control are performed in accordance with the front-end collision risk against the front vehicle and the rear-end collision risk by the rear vehicle.
20 Citations
20 Claims
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1. A vehicle drive assist system, comprising:
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front vehicle information detecting means for detecting front vehicle information; rear vehicle information detecting means for detecting rear vehicle information; front-end collision risk calculating means for calculating a front-end collision risk against the front vehicle by concerning at least an element of a relative speed between the front vehicle and a subject vehicle; rear-end collision risk calculating means for calculating a rear-end collision risk by the rear vehicle by concerning at least an element of a relative speed between the rear vehicle and the subject vehicle with a larger weight than a weight of the element of the relative speed in the front-end collision risk against the front vehicle; and control means for performing travel control in accordance with the front-end collision risk against the front vehicle and the rear-end collision risk by the rear vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A vehicle drive assist system, comprising:
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a front vehicle information recognizer that detects front vehicle information; a rear vehicle information recognizer that detects rear vehicle information; a front-end collision risk calculator that is configured to calculate a front-end collision risk against the front vehicle based on information concerning at least an element of a relative speed between the front vehicle and a subject vehicle and a distance Df between the subject vehicle and the front vehicle extending along a longitudinal axis of the vehicle; a rear-end collision risk calculator that is configured to calculate a rear-end collision risk by the rear vehicle based on a distance Dr extending along the longitudinal axis between the subject vehicle and the rear vehicle and based on information concerning at least an element of a relative speed between the rear vehicle and the subject vehicle with a larger weight than a weight of the element of the relative speed in the front-end collision risk against the front vehicle; and a target decelaration calculation unit that performs travel control to adjust a relative positioning of the subject vehicle relative to each of the distance Df to the front vehicle and the distance Dr to the rear vehicle in accordance with concurrently used input information as to the front-end collision risk against the front vehicle and the rear-end collision risk by the rear vehicle, with the rear-end collision risk being weighted higher relative to the front end collision risk even under circumstances wherein front and rear margin times and front and rear time headway values are equal in magnitude. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification