Patent ID: 9500175
Filing Date: 2016-11-22
CPC Classification: F02D,F02P,Y02T

Claim Text:
1. An engine ignition control method for controlling timing of spark for initiating burning in a combustion chamber of a four stroke cycle internal combustion engine, said engine comprising a cylinder, a piston in said cylinder, a single notch crankshaft connected to said piston, said engine ignition control method comprising: a crankshaft position sensor detecting the single notch crankshaft rotational movements and generating periodic pickup electrical signals as the single notch crankshaft rotates during a combustion cycle, wherein one crankshaft position sensor pickup electrical signal being generated for each full rotation of the single notch crankshaft; an intake manifold air pressure sensor continuously measuring air pressure in an intake manifold in the engine; a computer processor executing an ignition synchronization process comprising: