Air intake heating and diagnostic system for internal combustion

Details Air intake heating and diagnostic system for internal combustion Air intake heating and diagnostic system for internal combustion

1994-09-23

1996-01-09

Macy, Marguerite

Internal-combustion engines

Starting device

With charge or cylinder heating

123556, 3644311, 219206, F02P 1900

Patent

active

054820138

ABSTRACT:
An air intake heating and diagnostic system for an internal combustion engine includes a microprocessor based controller for activating electrical heating elements for a preheat time period prior to starting the engine and for a postheat time period after starting the engine. The controller receives inputs corresponding to intake manifold air temperature, battery temperature, vehicle speed, engine speed, and key switch position. The system continuously monitors the integrity of the various sensors, monitors the functionality of the heating elements during the postheat time period, and warns the vehicle operator by illuminating a "check engine" lamp if certain fault conditions are detected. In both cases, the controller sets fault flags within the controller memory corresponding to the detected fault conditions.

REFERENCES:
patent: 4295454 (1981-10-01), Iida
patent: 4399774 (1983-08-01), Tsutsumi
patent: 4506145 (1985-03-01), Kawamura et al.
patent: 4545357 (1985-10-01), Kearsley et al.
patent: 4648364 (1987-03-01), Wills
patent: 4667645 (1987-05-01), Gluckman
patent: 4924398 (1990-05-01), Fujiwara
patent: 4962300 (1990-10-01), Watanabe
patent: 5003954 (1991-04-01), Yakuwa et al.
patent: 5044196 (1991-09-01), Tomisawa et al.
patent: 5046473 (1991-09-01), Hokenson
patent: 5055825 (1991-10-01), Yang
patent: 5070832 (1991-12-01), Hapka et al.
patent: 5094198 (1992-03-01), Trotta et al.
patent: 5105789 (1992-04-01), Aramaki et al.
patent: 5107246 (1992-04-01), Mogaki
patent: 5113173 (1992-05-01), Lawson
patent: 5122968 (1992-06-01), Bauer et al.
patent: 5133303 (1992-07-01), Umehara
patent: 5138987 (1992-08-01), Schmid et al.
patent: 5184463 (1993-02-01), Becker et al.
patent: 5186045 (1993-02-01), Matsuoka et al.
patent: 5197430 (1993-03-01), Hoshiba et al.
patent: 5251440 (1993-10-01), Bong-dong et al.

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