Method and apparatus for inferring the actual air charge in an i

Details Method and apparatus for inferring the actual air charge in an i Method and apparatus for inferring the actual air charge in an i

1993-02-10

1994-07-26

Cross, E. Rollins

Internal-combustion engines

Charge forming device

Fuel injection system

123488, F02M 5100

Patent

active

053319362

ABSTRACT:
A mass airflow based control system for an internal combustion engine is provided which is capable of inferring cylinder air charge during non-steady state periods of operation of the engine. The control system infers cylinder air charge from values of rotational engine speed, air mass flow inducted into the engine, inlet air temperature, engine coolant temperature, and barometric pressure. The control system employs the inferred cylinder air charge value for air/fuel ratio control.

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patent: 5228336 (1993-07-01), Nagaishi

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