TVS Apache RR 310, Owner'S Manual, Page: 22 / 200

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EMS a Glance
Engine Management System (EMS) of your
motorcycle is a self manipulative system that checks
and regulates the proper functioning of all the
operations carried out by the engine.
The EMS checks all the factors related to engine
operations, i.e. speed of the engine, load,
temperature, fuel consumption, etc. There are two
major function performed by the EMS, they are:-
• Provide a spark at the right time
• To meter fuel to the engine in the right quantity.
The EMS is comprised of several sensors and signals
required for injection and ignition spark occurrence,
and a sensor for information about the oxygen
content in the exhaust. Further more, there is an
idle speed motor for adjusting and stabilising the idle
speed.
The Engine Control Unit or Electronic Control Unit
(ECU) is a central part of the EMS, which is virtually
the ‘Brain’ of an engine. It plays an important role of
collecting, processing, analyzing and executing the
data it receives from various sub-systems (sensors).
Furthermore, an ECU comprises of a computer which
uses a microprocessor to process the inputs from
various engine sensors in real-time.
Based on the data input, the ECU precisely calculates
and delivers the ideal air-fuel mixture. It also regulates
the idle speed of the engine and controls the correct
delivery of both fuel and spark to the vehicle under
various driving conditions.
Optimum functioning of the EMS assures maximum
engine power, with lowest amount of exhaust
emissions and the lowest fuel consumption. The
EMS is also responsible for the smooth and efficient
running of the motorcycle.