Royal Enfield HIMALAYAN EURO IV 2017, Руководство по обслуживанию

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ROYAL ENFIELD HIMALAYAN EURO IV VEHICLE SERVICE MANUAL
2. CRANK POSITION SENSOR
LOCATION
The crank position sensor sends an alternating voltage signal to the powertrain control module, which is used to
determine engine speed and ignition timing. Thus the speed of the engine is instantly known by the ECU.
SPECIFICATION
Output Voltage: 3 - 5 V AC.
Resistance : 200+20
Ω
It provides an alternating electrical pulse to the ECU, to determine crankshaft speed and TDC position by scanning
the 17 pips and 1 long gap between 2 particular pips on the rotor. This input helps the ECU to optimize both fuel
injection as well as Ignition advance required to suit the crankshaft rotation speed (RPM).
In the event the throttle is held wide open with gears in neutral, leading to crankshaft speed above 5500 RPM, the
high frequency electrical pulses from the crank position sensor will prompt the ECU to restrict fuel supply so that the
crank speed reduces below 5000 RPM. This is a safety aspect to prevent damage to moving engine parts.
3. ENGINE TEMPERATURE SENSOR
LOCATION
The engine temperature sensor (EOT) is located on the cylinder head, below the inlet manifold on the oil passage.
It senses the oil temperature and provides the input to the ECU on a real time basis. The ECU can then determine the
fuel injector operating time to provide the required amount of vaporized fuel into the combustion chamber for
optimum performance of the motorcycle and also to meet the emission norms.
SPECIFICATION
Operating Temperature: -55°C to + 250°C
R e s i s t a n c e : 2 5 d e g ( 1 0 K
Ω
) 5% and Resistance at 80deg (1.63K
Ω
) 5%
Sensor Supply Voltage: 5V