Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1989-06-30
1990-05-08
Wolfe, Willis R.
Internal-combustion engines
Charge forming device
Fuel injection system
36443104, 36443112, F02P 515
Patent
active
049228749
ABSTRACT:
A distributed processing system in an automotive environment achieves enhanced noise immunity and reduces the processing burden and background loop time of the master controller by providing for communication of signals between a master controller and a slave controller by pulse width modulated communication signals. In a preferred embodiment, the communicated signal is a spark advance which is transmitted to an ignition module for implementing spark events in an internal combustion engine. The spark advance pulse width is a linearly decreasing function of spark advance value since increased spark advance is associated with an increase in engine speed. The spark advance is encoded into a pulse width signal according to a method which simplifies decoding of the spark advance information in the ignition module.
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Boyer Wesley D.
DeBiasi Charles J.
Ford Motor Company
Godwin Paul K.
Mollon Mark L.
Wolfe Willis R.
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