Motor vehicle display system and ranging device
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United States of America Patent
Stats
-
Jan 5, 1999
Issued Date -
N/A
app pub date -
Feb 5, 1997
filing date -
Feb 5, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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