Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1979-12-20
1981-06-09
Myhre, Charles J.
Internal-combustion engines
Charge forming device
Fuel injection system
123410, 123415, 123407, F02P 504
Patent
active
042717973
ABSTRACT:
Electrical circuitry including a single absolute pressure transducer that is arranged to be exposed to substantially atmospheric pressure during a selected associated internal combustion engine operating condition produces an electrical pressure value indicating signal that is stored only when the pressure transducer is exposed to substantially atmospheric pressure. An electronic data processor unit preprogrammed to calculate a selected engine operating parameter value for the associated engine is preprogrammed to periodically effect a predetermined atmospheric pressure correction of the selected engine operating parameter value when the stored electrical pressure value indicating signal differs in a selected sense from a preselected value.
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General Motors Corporation
Myhre Charles J.
Nelli R. A.
Stahr Richard G.
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