Method for optimizing engine performance for different blends of

Details Method for optimizing engine performance for different blends of Method for optimizing engine performance for different blends of

1991-08-19

1993-07-20

Black, Thomas G.

Boots, shoes, and leggings

123494, 395900, G06F 1520, F02D 4102

Patent

active

052299465

ABSTRACT:
Engine performance is optimized by storing a plurality of engine strategy maps (A, B, etc.), each such map containing desired engine performance characteristics, and selecting one such map by using fuzzy logic techniques to evaluate selected engine sensor output signals. Preferably, a new engine strategy map is not selected unless (1) additional fuel has been added to the vehicle's fuel tank; and (2) selected sensor output signals have experienced at least a minimum deviation from their nominal values, thus indicating that a different blend of fuel is being supplied to the engine.

REFERENCES:
patent: 4809175 (1989-02-01), Hosaka et al.
patent: 4864998 (1989-04-01), Onishi
patent: 4905155 (1990-02-01), Kanno
patent: 4930084 (1990-05-01), Hosaka et al.
patent: 4995367 (1991-02-01), Yamauchi et al.
patent: 5038730 (1991-08-01), Kashima
patent: 5065728 (1991-11-01), Nakaniwa
"Fuzzy Logic Works with Degrees of Truth", by Brubaker, Computer Design, Mar. 1, 1991.
Automotive Electronics Review, Sep. 1990.
Automotive Electronic News, Monday, Jul. 31, 1989.

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