Fuel metering system for an internal combustion engine

Details Fuel metering system for an internal combustion engine Fuel metering system for an internal combustion engine

1980-10-07

1982-11-09

Cox, Ronald B.

Internal-combustion engines

Charge forming device

Fuel injection system

123493, 123480, F02B 300, F02D 3100

Patent

active

043579230

ABSTRACT:
Applicant's invention includes an improved fuel metering system which is particularly suitable for use with spark ignition and internal combustion engines controlled by digital computers programed to calculate repetitively a value representing a current transfer rate of the intake surface fuel and the calculated value being used to modify the rate at which fuel otherwise would be metered into the engine's intake passage. In particular, modification of the rate at which fuel is metered into the engine's intake passage takes into account the current equilibrium intake surface fuel quantity, the current intake system time constant, and the current actual intake surface fuel. From these quantities the current trend for rate of intake surface fuel is calculated. In a calculation of the current actual intake surface fuel, a previous value of the actual intake surface fuel is used in combination with a previous value of the transfer rate of intake surface fuel. Additionally, a clock is used to establish a time span.

REFERENCES:
patent: 2859738 (1958-11-01), Campbell
patent: 3608532 (1971-09-01), Balluff
patent: 3670706 (1972-06-01), Fujisawa
patent: 3794003 (1974-02-01), Reddy
patent: 3964443 (1976-06-01), Hartford
patent: 3969614 (1976-07-01), Moyer
patent: 4086884 (1978-05-01), Moon
patent: 4245605 (1981-01-01), Rice
patent: 4266275 (1981-05-01), Marchak
patent: 4266522 (1981-05-01), Williams

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