Driving The Vehicle; Fuel Economy - freightliner WALK-IN VAN CHASSIS Operator's Manual

Hydraulic Hybrid
Normal Engine Shutdown
WARNING
Do not exit the vehicle without setting the park-
ing brake and placing the transmission in neutral
(N). Otherwise, the vehicle could roll forward or
backward, causing property damage, personal
injury, or loss of life.
IMPORTANT: Bearings and seals in the turbo-
charger are subjected to the high heat of com-
bustion exhaust gases. While the engine is run-
ning, this heat is carried away by oil circulation,
but if the engine is stopped suddenly, the turbo-
charger temperature may rise as much as 115°F
(46°C).
1. With the vehicle stopped, apply the parking
brake, and place the transmission in neutral (N).
NOTE: SHIFT INHIBIT will appear on the mes-
sage center display screen if an attempt is
made to shift the transmission from drive (D) to
reverse (R) or from reverse (R) to drive (D) and
vehicle speed is 5 mph (8 km/h) or higher. If this
occurs, the hydraulic hybrid system will shift the
transmission into neutral (N) and N will appear
as the current gear on the shift pad. The SHIFT
INHIBIT message will appear on the message
display center and the shift inhibit indicator will
illuminate. The selected gear will continue to
flash on the shift pad until the previous gear or
neutral (N) is selected. The message and the
indicator will turn off and the transmission shift
will be allowed when vehicle speed is less than
5 mph (8 km/h).
2.
The engine will automatically stop when the
transmission is in neutral (N).
NOTE: Long periods of idling are not good for
an engine because the combustion chamber
temperatures drop so low that the fuel may not
burn completely. This will cause carbon to clog
the injector spray holes and piston rings, and
may result in stuck valves.
16.17
NOTICE
Do not rev the engine before shutting it down.
Revving the engine before shutdown will damage
the turbocharger.
3. Shut down the vehicle by turning the ignition
switch to the OFF position.

Driving the Vehicle

1. Press the brake pedal and select the appropriate
gear on the transmission shift pad.
If the message SHIFT TO NEUTRAL OR PARK
appears on the message display screen (with
an audible chime) and the park brake engages
automatically, the driver's seat belt is unbuckled.
Fasten the driver's seat belt to release the park
brake.
2. Release the parking brake.
3.
Release the brake pedal and then press the
throttle.
4. Monitor all gauges, warning indicators, and the
message display screen. If any of these indicate
a system issue, refer to the appropriate section
of this manual.

Fuel Economy

To get the best fuel economy and use of the hydrau-
lic hybrid system, observe the following guidelines:
•
During acceleration and braking, try to stay
within the ECON area of the high performance
gauge.
•
Reduce harsh acceleration. Aggressive accel-
eration causes the engine to start sooner and
reduces fuel economy. Maintaining throttle
pedal positions below 50% will improve overall
fuel economy.
•
Reduce harsh braking. The state of charge
(SOC) gauge will show that light to moderate
brake applications, where brake pedal travel is
between 0 to 15%, allow for more brake en-
ergy recovery to charge the accumulator.
Charging the accumulator means that after
each braking event, the vehicle can be acceler-
ated by the hydraulic hybrid system rather than