Altitude decision system and an engine operating parameter contr

Details Altitude decision system and an engine operating parameter contr Altitude decision system and an engine operating parameter contr

1992-02-25

1993-07-13

Wolfe, Willis R.

Internal-combustion engines

Charge forming device

Fuel injection system

123494, F02D 4104

Patent

active

052263932

ABSTRACT:
An altitude decision system and engine operating parameter control system using the same for accurately detecting and correcting for altitude uses three signals, viz, the signal from an engine revolution number sensor, the signal from a throttle sensor for detecting the angle of opening of a throttle valve, and a fundamental fuel injection pulse width signal which is computed by engine operational parameter-computer from inputted signals from a mass air flow sensor and the revolution number detection sensor. Having accurately derived the altitude, the fuel injection pulse rate, the intake air flow and the ignition timing are corrected.

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patent: 4582031 (1986-04-01), Janetzke et al.
patent: 4803966 (1989-02-01), Denz
patent: 4864998 (1989-09-01), Onishi
patent: 4907556 (1990-03-01), Ishii et al.
patent: 4926335 (1990-05-01), Flowers et al.
patent: 4941448 (1990-07-01), Nakaniwa et al.

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