Control apparatus and control method for internal combustion...

Details Control apparatus and control method for internal combustion... Control apparatus and control method for internal combustion...

2009-05-08

2011-10-18

Kamen, Noah (Department: 3783)

Internal-combustion engines

Charge forming device

Diverse fuel supply

C123S00100A, C123S1980DA

Reexamination Certificate

active

08037875

ABSTRACT:
A control apparatus for an internal combustion engine includes a first fuel tank where a first fuel containing alcohol is stored; a second fuel tank where a second fuel is stored, wherein a concentration of alcohol in the second fuel is known; an alcohol concentration sensor disposed in a supply passage through which the first and second fuels flow; and a malfunction determination portion. The control apparatus switches a fuel flowing through the supply passage between the first fuel and the second fuel, and controls a fuel injection amount based on a concentration of the alcohol in the first fuel detected by the sensor. The malfunction determination portion determines that the sensor malfunctions, if a value detected by the sensor is outside a predetermined range corresponding to the concentration of the alcohol in the second fuel when the fuel flowing through the supply passage is switched to the second fuel.

REFERENCES:
patent: 5-60003 (1993-03-01), None
patent: 6-6216 (1994-02-01), None
patent: 6-6218 (1994-02-01), None
patent: 6-34599 (1994-09-01), None
patent: 7-43645 (1995-10-01), None
patent: 8-10670 (1996-03-01), None

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