Induction volume sensing arrangement for an internal combustion

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

1987-07-01

1989-10-10

LaRoche, Eugene R.

Boots, shoes, and leggings

36443103, 123492, 123494, 731182, F02M 1700

Patent

active

048736414

ABSTRACT:
The throttle valve position of an engine is sensed and the effective cross sectional area of the induction passage is determined via table look-up. The table is recorded in terms of three parameters. The value thus derived is divided by the engine speed of alternatively a product of the engine speed and the engine displacement. A basic air induction quantity is then determined via table look-up and is subsequently modified using a correction coefficient to allow for the effect of engine speed on the same. The effect of injector position (viz., multi-point injection/single point injection) and/or the provision of a swirl control valve can be additionally taken into consideration via the use of suitable algorithms or additional two and three parameter system tables. If an idle control by-pass passage is provided, the effect of the opening degree is considered when determining the effective cross-section of the induction passage.

REFERENCES:
patent: 4275694 (1981-06-01), Nagaishi
patent: 4332226 (1982-06-01), Nomura et al.
patent: 4530333 (1985-07-01), Nishimura
patent: 4549516 (1985-10-01), Koumura
patent: 4594987 (1986-06-01), Wataya et al.
patent: 4651693 (1987-03-01), Nakajima et al.
patent: 4737914 (1988-04-01), Abe et al.
MTZ, "Mono-Jetronic--A Precise Fuel-Injection System . . . Self-Adaption", vol. 47, May 1986, pp. 179.

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