Definition of Manifold Absolute Pressure
Manifold Absolute Pressure (MAP) refers to the measurement of the absolute pressure within the intake manifold of an internal combustion engine. This measurement is crucial as it provides information to the engine control unit to calculate the correct fuel delivery rate to ensure optimal engine performance. The pressure is usually indicated in inches of mercury, which is the standard unit of measurement used for pressure in the intake manifold.
The measurement of MAP is particularly important in engines equipped with forced induction systems, such as turbochargers or superchargers. These systems increase the amount of air entering the engine, which in turn affects the air-to-fuel ratio. Proper control of the fuel delivery rate is essential to prevent damage to the engine and ensure optimal performance.
In summary, Manifold Absolute Pressure is a crucial parameter in internal combustion engines that allows for accurate control of the fuel delivery rate to ensure optimal engine performance.
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