Antenna cluster for a motor road vehicle collision warning system
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United States of America Patent
Stats
-
Dec 7, 1999
Grant Date -
N/A
app pub date -
Aug 25, 1998
filing date -
Aug 30, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A motor vehicle collision warning system 1 comprises an obstacle sensing system 3 including a plurality of sensors 5 together capable of sensing obstacles around the vehicle 7 and generating obstacle of concern signals when obstacles are sensed, and a warning control system 9 for receiving the obstacle of concern signals and for determining whether a collision warning signal should be generated. The sensing system includes at least one antenna cluster 11 mounted in the region of a corner 13 of the vehicle 7, the antenna cluster 11 comprising a radar transmit antenna 15 and two receive antennas 17 and 19. The transmit antenna 15 is mounted between the receive antennas 17 and 19. Receive antenna 17 faces towards the front of the vehicle and receive antenna 19 faces towards the rear of the vehicle. A trigger means 21 triggers the operation of the transmit antenna 15 and one or both of the receive antennas 17 and 19.
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