Vehicle tracker with power saving features and related methods
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 28, 2003
Grant Date -
Jan 24, 2002
app pub date -
May 17, 2001
filing date -
May 17, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A vehicle tracking unit preferably includes a vehicle position determining device, a wireless communications device, a back-up battery, and a controller connected to the wireless communications device and the vehicle position determining device. The vehicle position determining device, wireless communications device and controller may define a power load of the vehicle tracking unit. The controller may isolate the back-up battery from the power load as a voltage of the vehicle battery drops until reaching a threshold. After the threshold, the controller may cause the back-up battery to selectively power only a first portion of the power load while a second portion of the power load remains powered by the vehicle battery. The selectively powered portion from the back-up battery may be the wireless communications device, for example, which may have a higher operating voltage.
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