wsm M6060 User Manual

ENGINE
M6060, M7060, WSM
1-M19
(1) Engine ECU
The engine ECU (1) controls the amount, timing,
mixture and pressure of fuel that is injected. The engine
ECU (1) operates each kind of control based on the
signals from each type of sensor.
The actuator for controlling the amount, timing and
mixture of fuel injection is the injector, while the actuator
for controlling fuel pressure is the supply pump.
 Fuel Quantity Control
The amount of fuel to be injected is determined using
a basic injection amount, which is calculated based on
the state of the engine and driving conditions, with
corrections added for parameters such as water
temperature, fuel temperature, intake air temperature,
intake pressure, etc.
 Injection Timing Control
The ECU controls the timing for starting to energize
the injectors, first determining the timing for the main
injection and then setting the timing of other injections,
such as pilot injections.
 Fuel Mixture Control
By conducting a pilot injection, the initial fuel mixture
is kept to a minimum, mitigating the explosive initial
combustion and reducing NOx and noise.
 Fuel Pressure Control
The ECU calculates the set fuel injection pressure
based on the engine load (last injection amount and
engine RPM) and controls the amount the supply pump
supplies and the fuel pressure inside the rail.
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(2) Sensor
Crankshaft Position Sensor
The crankshaft position sensor (2) is mounted near
the supply pump gear of the flyweel housing (1) and the
sensor uses an MRE (magnetic resistance element) type
of sensor.
When the pulsar gear passes by the sensor, it alters
the magnetic field inside the sensor, generating an AC
voltage, which is output to the engine ECU.
Further, the gear has a wide part between teeth,
which alters the waveform of the AC voltage and the
sensor detects the crankshaft position with every
revolution; this change in the voltage is amplified by the
IC circuit inside the sensor and outputs it to the engine
ECU.
The engine ECU uses the signals to calculate the
piston position and engine RPM.
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(1) Engine ECU (2) ECU Connector
(1) Flyweel Housing (2) Crankshaft Position Sensor
KiSC issued 08, 2013 A

wsm M6060 Specifications

General

Brand	wsm
Model	M6060
Category	Tractor
Language	English