Triumph 2010 Tiger 800, Руководство по обслуживанию

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Fuel System/Engine Management
Engine Management System
System Description
The Tiger 800 and Tiger 800XC models are fitted with an
electronic engine management system which
encompasses control of both ignition and fuel delivery.
The electronic control module <ECM> draws information
from sensors positioned around the engine, cooling and
air intake systems and precisely calculates ignition
advance and fueling requirements for all engine speeds
and loads.
In addition, the system has an on-board diagnostic
function. For additional information, see page
10-28.
System Sensors
•
Intake air temperature sensor - situated in
the top of the airbox. As the density of the air
(and therefore the amount of oxygen available
to ignite the fuel> changes with temperature,
an intake air temperature sensor is fitted.
Changes in air temperature <and therefore air
density) are compensated for by adjusting the
amount of fuel injected to a level consistent
with clean combustion and low emissions.
Barometric pressure sensor
-
situated below
the battery. The barometric pressure sensor
measures atmospheric air pressure. With this
information, the amount of fuel injected is
adjusted to suit the prevailing conditions.
•
Manifold Absolute Pressure <MAP> sensor
-
situated to the front of the airbox, connected
to each of the three throttle bodies by equal
length tubes. The MAP sensor provides
information to the ECM which is used at
shallow throttle angles <very small throttle
openings> to provide accurate engine load
indications to the ECM. This degree of engine
load accuracy allows the ECM to make very
small adjustments to fuel and ignition which
would otherwise not be possible from throttle
angle data alone.
•
Clutch switch - situated on the clutch lever.
The clutch must be pulled in for the starter
motor to operate.
•
Crankshaft position sensor
-
situated in the
alternator cover. The crankshaft position sensor
detects movement of teeth attached to the
alternator rotor.
The toothed rotor gives a reference point from
which the actual crankshaft position is
calculated. The crankshaft position sensor
information is used by the ECM to determine
engine speed and crankshaft position in
relation to the point where fuel is injected and
ignition of the fuel occurs.
•
Engine coolant temperature sensor -
situated at the rear of the cylinder head.
Coolant temperature information, received by
the ECM, is used to optimise fueling at all
engine temperatures and to calculate hot and
cold start fueling requirements.
•
Throttle position sensor - situated at the right
end of the throttle body. Used to relay throttle
position information to the ECM. Throttle
opening angle is used by the ECM to
determine fueling and ignition requirements
for all throttle positions.
•
Road speed sensor - situated in the upper
crankcase, in front of the engine breather. The
road speed sensor provides the ECM with data
from which road speed is calculated and
displayed on the speedometer.
•
Lambda sensor - situated in the exhaust
header system upstream of the catalyst The
lambda sensor constantly feeds information to
the ECM on the content of the exhaust gases.
Based on this information, adjustments to the
air/fuel ratio are made.
•
Side stand switch
-
situated at the top of the
sidestand leg. If the sidestand is in the down
position, the engine will not run unless the
transmission is in neutral.
•
Gear position sensor
-
situated in the upper
crankcase, behind the gearbox output
sprocket cover, on the left hand side of the
engine. The gear position sensor provides the
ECM with selected gear information. This is
used to prevent the engine from starting if the
transmission is in gear. The sensor also
provides information to the gear position
indicator and the neutral lamp in the
instruments.
•
Fall detection switch
-
situated on the relay
and fuse box bracket below the fuel tank The
fall detection switch will detect if the
motorcycle is on its side and will cut power to
the ECM immediately. This prevents the
engine from running and the fuel pump from
delivering fuel. In the event of a fall, the switch
is reset by returning the bike to an upright
position and switching the ignition off then
back on again.
10.16
SeNice Manual
-
Tiger 800 and Tiger 800XC