Induction volume sensing arrangement for internal combustion eng

Details Induction volume sensing arrangement for internal combustion eng Induction volume sensing arrangement for internal combustion eng

1987-07-01

1990-08-21

LaRoche, Eugene R.

Boots, shoes, and leggings

36443103, 123492, 123494, 731182, F02M 1700

Patent

active

049512099

ABSTRACT:
The throttle valve position is sensed and the effective cross sectional area of the induction passage determined via table look up. The value thus derived is divided by the engine speed. A basic air induction quantity is then determined via table look up and subsequently modified using a correction coefficient to allow for the effect of engine speed on the amount of air inducted into each cylinder. The effect of injector position (viz., MPI/SPI) is taken into consideration and values suited for both generated in given embodiments. In the event that the maximum induction vacuum is limited by a BCD valve or the like, an embodiment anticipates the change in induction characteristics based on the engine speed.

REFERENCES:
patent: 4530333 (1985-07-01), Nishimura
patent: 4594667 (1986-06-01), Yasuhara
patent: 4594987 (1986-06-01), Wataya et al.
patent: 4737914 (1988-04-01), Abe et al.
MTZ, "Mono-Jetronic-A Precise Fuel-Injection System . . . Self-Adaption", vol. 47, May 1986, p. 179.

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