Neousys Technology Nuvo-8108GC Series, Руководство пользователя

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Nuvo-8108GC
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3.7.2 Additional Features of Ignition Power Control
In addition to the typical timing correlation, the ignition power control module offers additional
features to provide additional reliability for in-vehicle applications.
1. Low battery detection
The ignition power control module continuously monitors the voltage of DC input when the
system is operational. If input voltage is less than 9V (for 12VDC input) or less than 18V
(for 24VDC input) over a 60-second duration, it will shut down the system automatically.
2. Guarded power-on/ power-off delay duration
If ignition signal goes inactive during the power-on delay duration, the ignition power
control module will cancel the power-on delay process and go back to idle status. Likewise
if ignition signal goes active during the power-off delay duration, the ignition power control
module will cancel the power-off delay process and keep the system running.
3. System hard-off
In some cases, system may fail to shutdown via a soft-off operation due to system/
application halts. The ignition power control module offers a mechanism called “hard-off” to
handle this unexpected condition. By detecting the system status, it can determine whether
the system is shutting down normally. If not, the ignition power control module will force
cut-off the system power 10 minutes after the power-off delay duration.
4. Smart off-delay
The ignition power control module offers two modes (mode 13 & mode 14) which have very
long power-off delay duration for applications require additional off-line time to process
after the vehicle has stopped. In these two modes, the ignition power control module will
automatically detect the system status during the power-off delay duration. If the system
has shutdown (by the application software) prior to power-off delay expiring, it will cut off
the system power immediately to prevent further battery consumption.