Control apparatus for an internal combustion engine

Details Control apparatus for an internal combustion engine Control apparatus for an internal combustion engine

2006-11-07

2006-11-07

Solis, Erick R (Department: 3747)

Internal-combustion engines

High tension ignition system

Having dwell control

C123S625000

Reexamination Certificate

active

07131435

ABSTRACT:
In step400, microcomputer12calculates a temperature change amount ΔT1of ignition coil FC caused by the heat generating from the ignition coil FC, based on a previous calculated temperature T(n−1) of ignition coil FC and an engine rotational speed. In step410, the microcomputer12calculates a temperature change amount ΔT2of ignition coil FC caused by the heat received from the engine, based on the previous calculated temperature T(n−1) of ignition coil FC and a cooling water temperature of the engine. In step420, the microcomputer12calculates a temperature change amount ΔT3of ignition coil FC caused by the heat released to the outside, based on the previous calculated temperature T(n−1) of ignition coil FC and an intake air temperature of the engine. Then, in step430, the microcomputer12calculates a present ignition coil temperature T(n) based on these change amounts ΔT1, ΔT2, and ΔT3.

REFERENCES:
patent: 5043900 (1991-08-01), Allen et al.
patent: 5199405 (1993-04-01), Mukaihira et al.
patent: 6526953 (2003-03-01), Inagaki
patent: 6571783 (2003-06-01), Denz et al.
patent: 2003/0089353 (2003-05-01), Gerhardt et al.
patent: 08-338349 (1996-12-01), None
patent: 11-50900 (1999-02-01), None

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