Temperature predicting system for internal combustion engine and

Details Temperature predicting system for internal combustion engine and Temperature predicting system for internal combustion engine and

1994-08-30

1996-08-13

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Including exhaust gas condition responsive means

F02D 4100

Patent

active

055446396

ABSTRACT:
A temperature projecting system includes a temperature sensor for monitoring a temperature of an objective portion where the temperature changes depending on an engine operating condition. The temperature projecting system projects an actual temperature of the objective portion based on the monitored temperature but free of a first-order lag of the temperature sensor. A temperature control system includes the temperature projecting system. The temperature control system derives a correction amount for a basic control amount of an actuator based on a difference between the projected actual temperature and a target temperature. The basic control amount is corrected by the correction amount to derive a corrected control amount which controls the engine operating condition and thus the temperature of the objective portion.

REFERENCES:
patent: 4576039 (1986-03-01), Muto et al.
patent: 4866980 (1989-09-01), Falkmann et al.
patent: 5103791 (1992-04-01), Tomisawa
patent: 5158063 (1992-10-01), Hosoda et al.
patent: 5239965 (1993-08-01), Ninomiya

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