Communications: electrical – External condition vehicle-mounted indicator or alarm – Transmitter in another vehicle
Patent
1996-06-10
1997-10-21
Hofsass, Jeffery
Communications: electrical
External condition vehicle-mounted indicator or alarm
Transmitter in another vehicle
340904, 340436, 180170, 342 70, 364461, 36442601, 364426041, G08G 116
Patent
active
056801181
ABSTRACT:
Apparatus provides a signal to an operator of a following vehicle when it is necessary to take appropriate action to avoid coming within a predetermined distance of a lead vehicle proceeding in the same direction. From initial predicted forward velocities and distances of the lead and following vehicles, the signal apparatus (1) derives subsequent predicted velocities and positions of the lead and following vehicles and a subsequent predicted distance D(t) between the lead vehicle and the following vehicle after a projected short time interval while assuming a predetermined braking action of the following vehicle (2), derives and compares the subsequent predicted distance D(t) between the lead vehicle and the following vehicle with a least distance D.sub.LEAST, and (3) sets the least distance D.sub.LEAST equal to the subsequent predicted distance D(t) between the lead vehicle and the following vehicle if the latter is smaller. The signal apparatus iteratively applies the calculating means, beginning with forward velocities and positions derived from sensor signals as the initial predicted forward velocities and distances in the first iteration and generates a signal if and when the least distance becomes smaller than a minimum allowable distance D.sub.MIN.
REFERENCES:
patent: 3835361 (1974-09-01), Schubring
patent: 4143370 (1979-03-01), Yamanaka et al.
patent: 4703429 (1987-10-01), Sakata
patent: 5014200 (1991-05-01), Chundrlik et al.
patent: 5173859 (1992-12-01), Deering
patent: 5454442 (1995-10-01), Labuhn et al.
Millimeter-Wave Radars for Automotive Use; T. Takehana, H. Iwamoto, T. Sakamoto, T. Nogami Int'l Congress on Transportation Electronics; Proceedings; Hyatt Regency, Dearborn, MI Oct. 17-18, 1988.
Automotive Radar Using mm Wave; T. Takehana, Y. Isogai and T. Sakamoto; Fujitsu ten Ltd. Toyota Motor Co., Ltd., Japan.
Cusumano Eileen Therese
Schlax Tim Roth
General Motors Corporation
Hofsass Jeffery
Sigler Robert M.
Tong Nina
LandOfFree
Vehicle signal apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Vehicle signal apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vehicle signal apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1010172