Method of replicating a crankshaft position signal

Details Method of replicating a crankshaft position signal Method of replicating a crankshaft position signal

1996-12-06

1997-10-28

Wolfe, Willis R.

Internal-combustion engines

Charge forming device

Fuel injection system

123630, F02P 5145

Patent

active

056808437

ABSTRACT:
A method of replicating a crankshaft position signal for an internal combustion engine in a motor vehicle includes the steps of determining whether at least one predetermined condition is met and ending the method if the at least one predetermined condition is not met. The method also includes the steps of determining which cylinder is firing if the at least one predetermined condition is met and determining an ignition period between cylinder firing events for the cylinder that is firing. The method further includes the steps of determining a time to synthesize a crankshaft edge based on the ignition period. The method also includes the step of synthesizing a crankshaft edge based on the time and operating the internal combustion engine based on the synthesized crankshaft edge.

REFERENCES:
patent: 4615318 (1986-10-01), Imoto et al.
patent: 4953531 (1990-09-01), Abe
patent: 5099811 (1992-03-01), Frantz et al.
patent: 5267544 (1993-12-01), Ohkumo et al.
patent: 5345909 (1994-09-01), Fukui et al.
patent: 5584274 (1996-12-01), Fukui et al.

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