Collision avoidance system for vehicles having elevated apparatus
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United States of America Patent
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May 25, 1999
Grant Date -
N/A
app pub date -
Jul 29, 1997
filing date -
Jul 29, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A collision avoidance system for a vehicle of the type having a powered lift mechanism with a lift control used to move the mechanism between a predetermined safe position and an elevated position includes a first sensor to determine whether the mechanism is in the safe or the elevated position, and a second sensor used to determine whether an operator is using the lift control to power the mechanism beyond the safe position. If the mechanism is in the elevated position and the operator is not using the lift control to power the mechanism beyond the safe position, control electronics are operative to automatically transfer the mechanism from the elevated position back to the safe position without operator intervention. Means may be provided for alerting an operator of the vehicle when the mechanism is in the elevated position, for example, in the form of an intermittent, periodic audible and/or visual indicator which continues until the mechanism is brought back to the safe position. A vehicle speed sensor coupled to the control electronics may also be provided to cause the automatic transfer of the mechanism to occur move rapidly as a function of increasing vehicle speed.
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