Paccar 12-Speed, Руководство оператора

Страница: 25 / 45

engine overspeed in Drive,
MANUAL and LOW modes.
Shuttle Shifting
• Shuttle shifting from Reverse to
any forward mode is only allowed if
the vehicle speed is approximately
zero.
Intelligent Start Gear Selection
• Intelligent Start Gear Selection will
automatically select the start gear
depending on inputs such as load,
grade and axle/transmission ratio.
• The start gear selection can be
changed using the up/downshift
request, however, if the selection
requested could cause damage or
engine lugging the request will be
denied and an audible tone will
sound.
Skip Shifting
• The Automated Transmission will
shift multiple gears at one time
(skip shift) with moderate to high
accelerator pedal input while in
Drive mode, up to 8th gear.
Auto Neutral
• The transmission system will
automatically shift to neutral if the
vehicle is left in Drive and the
parking brakes are set.
• “AN” will appear in the gear display.
The driver must then select the
desired forward or reverse mode
with the service brake applied.
Load Based Shifting
• The transmission system will adapt
to the conditions of the vehicle to
change the shift points based on
the followings inputs:
• Vehicle grade
• Engine RPM
• Accelerator pedal position
• Vehicle load
• After changing loads or powering
up the transmission system needs
to relearn these inputs for the first
few shifts to make the proper
adjustments.
Coast Mode
• When coasting to a stop, in Drive
mode, on level terrain the
transmission system may not
downshift into lower gears. This
allows the transmission to coast to
a stop.
Cruise Control
• This transmission system is
compatible with cruise control.
Neutral Coast Mode
Neutral Coast Mode allows the
transmission to disengage the driveline by
pulling out of gear on slight downhill
grades, where little to no engine power is
required, when the vehicle is in cruise
control and the transmission is in Drive
mode.
• When Neutral Coast Mode is
active, the engine will drop to idle
speed and the transmission will
disengage.
• The gear display may flash a gear
number or indicate Neutral when
Neutral Coast Mode is active,
depending upon specific OEM
implementation.
• If a flashing number is indicated in
the gear display, this represents the
gear that the transmission will
DRIVING - Features
Y53-1272-1B1 (08/17) 23
2