Patent ID: 6955081

Claim:
An engine control apparatus for determining engine position and intake air mass from a single sensory means, comprising: (a) an engine having at least one cylinder, a piston in said cylinder, a crankshaft connected to said piston, said piston being adapted to reciprocate between top dead center position and bottom dead center position defining a combustion chamber, an intake valve controlling the induction of an air mass into said combustion chamber with predetermined timing related to said crankshaft's angular position, said engine air induction system having its chamber contiguous with said valve and said engine combustion chamber, a pressure sensing element in communication with said air induction chamber; (b) a pressure sensor means for developing periodic sensor voltage timing pulses, the cycle time between timing pulses being an indication of engine crankshaft speed, and the pulse timing being an indication of a particular crankshaft degree of angular position; (c) a pressure sensor means for measuring intake air mass for the determination intake air mass; (c) a means for measuring in real-time, intake air pressure, cycle time, and crankshaft position.