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1.3 NIRA i7x Functionality
NIRA i7x reads sensor values, processes the data and sends output signals to
various actuators.
NIRA i7x is a fully sequential engine management system for engines with up
to 8 cylinders.
By using the NIRA rk software, you have the ability to modify many of the
parameters that control the data processing and the output signals in NIRA
i7x.
Picture 1-1: Overview of NIRA i7x inputs and outputs.
Picture 1-1 above shows the input signals and the output controls of NIRA
i7x. Section 1.3.1 below lists all sensors used by NIRA i7x. Section 1.3.2 lists
additional input controls used by NIRA i7x and section 1.3.3 lists output
functions.
1.3.1 Sensors
MAP sensor (Manifold Absolute Pressure)
Boost sensor (Pre throttle pressure measurement)
MAT sensor (Manifold Air Temperature)
CKP sensor (Crankshaft Position) Inductive or Hall
TPS (Throttle Position Sensor, measures the throttle butterfly angle)
CMP sensor (Cam Position. The crankshaft rotates two revolutions per
four strokes in a four-stroke engine. The camshaft rotates half as fast as
the crankshaft so it completes one revolution per four strokes. The
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