Communications: electrical – External condition vehicle-mounted indicator or alarm – Transmitter in another vehicle
Patent
1997-02-05
1999-01-05
Lefkowitz, Edward
Communications: electrical
External condition vehicle-mounted indicator or alarm
Transmitter in another vehicle
340464, 340467, 340479, B60Q 100
Patent
active
058567933
ABSTRACT:
The state of motion of a motor vehicle is indicated to a driver of a following vehicle by employing an array of lamps. The state of motion is determined by sensing vehicle velocity, deceleration being measured either directly via a transducer or being derived from measured velocity. When the subject vehicle is determined to be stationary, the lamps are illuminated in a time dependent sequence to produce an animated visual display in which the lamps are illuminated and selected pairs of lamps are sequentially de-actuated to provide a pattern cyclically moving outwardly from the center to both left and right ends of the array. The approach of the following vehicle to within a pre-set distance of the stationary vehicle is sensed and triggers a change in the display to a static visual display in which an outer pair of lamps remain illuminated. During deceleration, the level of deceleration is indicated by illuminating progressively more lamps with increasing deceleration.
REFERENCES:
patent: 4566862 (1986-01-01), Meinershagen
patent: 4663609 (1987-05-01), Rosario
patent: 5017904 (1991-05-01), Browne et al.
Armour and Carter, "Multi-brakelight array control equipment," Road Research Laboratory, Department of the Environment RRL Report LR 374 (1971).
Rutley and Mace, "An evaluation of a brakelight display which indicates the severity of braking, " Road Research Laboratory, Department of the Environment RRL Report LR 287 (1969).
Cucinotta Marco
Hall Simon Lewis Marshall
Strong Gareth Anthony
Tonkin Mark Christopher
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