Extended Idle Condition
If the continuous run condition is not needed
and the thermostat set point is not met within
minutes, the engine shuts down for 15
minutes and then restarts and runs for 15
minutes. This cycle (15 minutes on, 15
minutes off) will continue until either the
thermostat set point is reached or Optimized
Idle is turned off.
Hood/Cab Open Switch
A hood mounted switch used to indicate if the
hood/cab is open.
Idle
Engine running on low speed governor and
the vehicle not moving.
Idle Shutdown Timer
Allows the engine to shutdown after a
customer set time expires while idling (low
idle, high idle, or VSG).
Liquid Crystal Display (LCD)
The Optimized Idle thermostat uses a liquid
crystal display.
MCM2
The engine mounted Motor Control Module2
(MCM2) includes control logic to provide
overall engine management.
Neutral Switch
A transmission--mounted switch used to
indicate when the transmission is in neutral.
Park Brake Switch
An air line mounted switch used to indicate
that the tractor parking brake is set.
RPM
Engine revolutions per minute.
Set Point
The desired interior temperature set on the
thermostat.
Thermostat
A cab/sleeper or dash mounted device which
displays the interior temperature and is used
to set the desired temperature set point and
comfort zone.
Thermostat Mode
Allows Optimized Idle to start and restart the
engine to maintain the desired
interiortemperature, as well as keep the
engine temperature between factory set
limits and the battery charged .
VSG and VSG (PTO)
Engine running above the low speed
governor on the variable speed governor
(previously PTO).
VSS
Vehicle Speed Sensor.
Optimized Idle User Manual
All information subject to change without notice.
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DDC-SVC-MAN-0019
Copyright © 2016 DETROIT DIESEL CORPORATION
