Abstract:
All modern vehicles today include an Engine Control Unit (ECU). This unit is responsible for the co-ordination of all sub systems of the vehicle such as the fuel ignition system. The ECU reads sensor values from various parts of the engine and depending on these values it performs the appropriate actions. For example, if the air intake is low, the fuel input is increased to compensate. The purpose of this project, Greddy E-Manage, is to differentiate of precision of managing engine using E-Manage compare to stock ECU. The Greddy E-Manage is a piggy back ecu. It is not an ecu but it is design to manipulate the ecu input to vary the amount of fuel injected,ignition timing and few other functions. The primary function of a piggyback controller is to adjust the fuel to be injected. ECU will inject the fuel according to the Manifold Absolute Pressure (MAP) or Mass Airflow Sensor (MAF). When e-manage is installed the output of the MAP or MAF will be supplied to the E-manage. In the E-manage, user can set their own airflow adjustment mapping. So the e-manage will refer to the map the and give the signal to the ecu. So instead of ecu getting input from maf or map, it will receive it from the unit. So the ecu will give the signal to the injector to inject that certain amount of fuel.
