PEC 013
Page
26
of
71
12/20/13
8.0
Cruise Control (CC)
Overview
The engine cruise control functionality allows the operator to set a desired vehicle
speed and then adjust it within programmed limits. This allows the driver to adapt to
changing vehicle speed requirements. For example, the operator can increase or
decrease speed by using a switch bump. The vehicle must be within programmed
limits to activate and maintain cruise control.
The CC module allows a fleet owner to set preprogrammed limits in order to enhance
overall operating economy. CC is a standard feature of the engine. The default CC
settings are useful for a majority of applications. In most conditions, modifications of
the default settings aren’t necessary. Before changing the default parameters, it is
strongly recommended to consult the customer and/or body builder to review CC
options.
Standard Feature
CC
CC ON/OFF switch
Set/Accel switch
Res/Decel switch
CC regulates engine torque to maintain the desired vehicle speed. CC ON/OFF,
Set/Accel, and Res/Decel are in-cab switches to operate CC.
The CC ON/OFF switch allows the operator to control the vehicle speed if the switch
is in the ON position. When the switch is in the OFF position, CC is OFF and the
engine will not automatically maintain an operator-desired vehicle speed.
The Set/Accel switch allows the operator to activate CC when the CC is ON, which
sets the current vehicle speed to the operator-desired vehicle speed. The operator is
free from having to control the vehicle speed using the accelerator pedal. While CC
is actively controlling vehicle speed, and the Set/Accel switch is bumped, the vehicle
speed will increase by the value of “Value to increase CC speed with Set/Accel
switch is bumped (N0
05).” While CC is actively controlling vehicle speed, and the
Set/Accel switch is pressed and held, the vehicle will accelerate until the switch is
released or the “Maximum CC set speed (N006)” is met.
The Res/Decel switch allows the operator to activate CC and resume maintaining a
previously set vehicle speed, when the CC is ON. The stored operator-desired
vehicle speed is reset with an ignition key cycle. When the Res/Decel is bumped,
the vehicle speed will decrease by the value of “Value to decrease CC speed with
Res/Decel switch is bumped (N0
04).” While CC is actively controlling vehicle speed
and the Res/Decel switch is pressed and held, the vehicle will decelerate until the
switch is released or the “Minimum speed to automatically turn CC OFF (N001)” is
met.
