Measuring apparatus for detecting distance between vehicles and

Details Measuring apparatus for detecting distance between vehicles and Measuring apparatus for detecting distance between vehicles and

1995-03-24

1997-11-04

Hofsass, Jeffery

Communications: electrical

External condition vehicle-mounted indicator or alarm

Transmitter in another vehicle

340438, 340436, 340904, 36442401, 180271, G08G 116

Patent

active

056844735

ABSTRACT:
A measuring apparatus for measuring an actual distance between vehicles and comparing the measured distance with a reference distance. The reference distance (SL) is obtained on the basis of: a personal space (VR.multidot.TIMEK) being an uneasy distance peculiar to a driver and obtained in accordance with the own vehicle speed; a free running distance (VRR.multidot.TIMEN) corresponding to a response time of a driver's braking operation and a relative speed between two vehicles; a braking distance (VRR.sup.2 /(2.multidot.GR)) corresponding to a depressing strength of a braking pedal in the driver's braking operation and the relative speed; and an acceleration change distance (.alpha.G.multidot.GA) corresponding to a relative acceleration between the two vehicles, using the following equation:

REFERENCES:
patent: 5249157 (1993-09-01), Taylor
patent: 5314037 (1994-05-01), Shaw et al.
patent: 5347273 (1994-09-01), Katirgie
patent: 5357438 (1994-10-01), Davidian
patent: 5410304 (1995-04-01), Hahn et al.

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