ENGINE MANAGEMENT SYSTEM

ENGINE MANAGEMENT SYSTEM

ABSTRACT:

In an age when there is growing tension between customer expectations of high engine performance, low fuel consumption and compliance with the legal requirements on the emission of airborne pollution, the ability of a vehicle to meet the most stringent emission standards is becoming an increasingly important aspect of its market appeal.
Engine management system uses advanced control system to achieve optimum efficiency and high output power and maintain low emissions. It has tight fuel control which gives greater fuel economy.

This paper contains information of sensors actuators and electronic control module (ECM). Sensors for registering operating conditions. A wide variety of physical quantities are converted into electrical signals. The electronic control employs digital technology. The microprocssors with their inputs output interface circuit manipulates the signal received from sensors and generates the output control command for actuators.

Actuators works on control signal which is set by processor to effect the required control action. fuel injection equipment are most fundamental actuators on the engine and is means of supplying energy to the cylinder. Other actuator include EGR valves, variable geometry devices, turbo charger waste gate etc.

On-Board diagnostics is used for monitoring engine operation. This diagnoses all the component related with the clean exhaust. Any fault detected by the system will be indicated to the driver by warning light on the OBD display

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