Signaling means
First Claim
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1. A device in a first vehicle for spacing vehicles comprising:
- said device in said first vehicle having a rear directed detection means, for when said first vehicle is operating, generating a first laser or radar signal directed from the rear of said first vehicle;
said device in said first vehicle having means for receiving a reflected signal of said first signal from a second vehicle located to the rear of said first vehicle;
said device in said first vehicle having means for calculating the velocity of the second vehicle located to the rear of said first vehicle, the distance between the said first vehicle and the second vehicle located to the rear of said first vehicle and input for determining the velocity of said first vehicle;
said first vehicle having a signaling means, for when said rear located vehicle is operating within a predetermined distance of said first vehicle and at a predetermined velocity such that the second vehicle located to the rear of said first vehicle is overtaking said first vehicle at a relative velocity that makes a rear end collision between said first vehicle and the second vehicle located to the rear of said first vehicle likely, for generating a pulsating visible light directed to the second vehicle located to the rear of said first vehicle wherein said pulsating visible light is proportionately related to the velocity of the rear located second vehicle and provided further that the signaling means is inoperative at a second predetermined velocity of the second vehicle located to the rear of said first vehicle.
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Abstract
A device and method to avoid collisions is described. The device and method is primarily directed to preventing tail-gating by motorists and the avoidance of otherwise resultant collisions. The method and device may also be utilized to detect stationary objects and to alert the driver of a vehicle of an imminent collision.
60 Citations
11 Claims
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1. A device in a first vehicle for spacing vehicles comprising:
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said device in said first vehicle having a rear directed detection means, for when said first vehicle is operating, generating a first laser or radar signal directed from the rear of said first vehicle; said device in said first vehicle having means for receiving a reflected signal of said first signal from a second vehicle located to the rear of said first vehicle; said device in said first vehicle having means for calculating the velocity of the second vehicle located to the rear of said first vehicle, the distance between the said first vehicle and the second vehicle located to the rear of said first vehicle and input for determining the velocity of said first vehicle; said first vehicle having a signaling means, for when said rear located vehicle is operating within a predetermined distance of said first vehicle and at a predetermined velocity such that the second vehicle located to the rear of said first vehicle is overtaking said first vehicle at a relative velocity that makes a rear end collision between said first vehicle and the second vehicle located to the rear of said first vehicle likely, for generating a pulsating visible light directed to the second vehicle located to the rear of said first vehicle wherein said pulsating visible light is proportionately related to the velocity of the rear located second vehicle and provided further that the signaling means is inoperative at a second predetermined velocity of the second vehicle located to the rear of said first vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification