4.8 Electronic Engine Controls
CAUTION: Do not make any additional
connections to the electrical circuits
associated with the engine management
system.
NOTE:
It is not necessary to disconnect or remove
engine management modules.
4.8.1 Start-Stop
WARNINGS:
The engine may restart automatically if
required by the system. It will only
automatically restart when the clutch
pedal is pressed. If no pedal is pressed,
the Start-Stop indicator will flash and a
message will be shown in the display.
Switch the ignition off before opening the
hood or carrying out any maintenance.
Always switch the ignition off before
leaving your vehicle, as the system may
have shut down the engine but the
ignition will still be live.
The system may not function if you leave
additional loads connected with the
ignition off.
It is very important not to make any modifications
to the shielding around exposed moving parts on
the engine, for example the drive belt.
General Information
Start-Stop is designed to improve fuel economy
and reduce CO
2
emissions by automatically
stopping the vehicle's combustion engine during
idle phases when it is not required for motive
power, and restarting it when required.
Start-Stop Logic
Automatic engine stops and restarts are controlled
by the Start-Stop logic within the Electronic
Control Module (ECM). This is connected to a
number of vehicle and powertrain signals, sensors
and switches and decides when to shut down and
when to restart the engine, based on the particular
Start-Stop strategy employed. Stop-in-Neutral is
a Start-Stop strategy applicable to manual
transmissions which stops the engine, subject to
inhibitors, whenever the vehicle is stationary AND
neutral is selected AND the clutch has been fully
released. The engine is restarted on clutch pedal
press in neutral.
Inhibitors
Sometimes the engine may not shut down or will
request auto restart due to one or more system
inhibitors being active. The engine will shutdown
only when all inhibitors are cleared, which maybe
some time after the transmission is shifted to
neutral and the clutch pedal is released.
Typical examples of inhibitors are:
•
If the ambient temperature is below the lower
limit or above the higher limit for Start-Stop.
•
Engine coolant temperature not warmed up
(value dependent on ambient temp).
•
Heated front screen is on.
•
Insufficient battery charge to sustain a stop
event or too high a current drain or battery is
cold or battery failure.
•
Driver's door has been opened and vehicle has
not been driven over 5 kph since.
•
Engine management reason, for example:
during a DPF regeneration event.
•
The ABS warning lamp is on or the vehicle is on
a steep gradient
•
High electrical load where total vehicle current
A drain exceeds 50 Amps.
•
Ford Engine RPM (Revs per Minute) Speed
Controller System is active.
•
Un-recognized battery fitted or BMS damaged
or removed.
•
Start-Stop is pressed (LED illuminated).
•
Accelerator pedal or clutch pedal is not
released.
•
Greater than 100mA continuous load at ignition
off. The BMS will be unable to correctly assess
battery state of charge.
•
Vehicle in Factory or Transport mode.
Stall Recovery/Start Abortion Recovery
Stall recovery is an additional feature available
with Start-Stop, and is active even if Start-Stop
itself has been deselected or is inhibited. Under
stall recovery, an automatic engine restart is
invoked if the clutch pedal is fully depressed
immediately following a vehicle stall, thus enabling
the driver to quickly recover from a stall condition
without needing to cycle the ignition key. Stall
recovery is only available for 5 seconds following
a stall.
FORD
TRANSIT
2016.75
Date of Publication: 03/2018
EU
4 El
ec
tric
al
148
