Gasoline nature sensing system

Details Gasoline nature sensing system Gasoline nature sensing system

1992-03-19

1993-03-09

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Fuel injection system

123 1A, F02M 5100

Patent

active

051918692

ABSTRACT:
A system for sensing the nature of gasoline is disclosed, which comprises a capacitance type sensor for producing a first information signal representative of the dielectric constant of the gasoline; a temperature sensor for producing a second information signal representative of the temperature of the gasoline; a temperature coefficient deriving device for deriving a temperature coefficient of the gasoline from the first and second information signals; an additive concentration deriving device for deriving the concentration of alcohols in the gasoline from the temperature coefficient; a correcting device for correcting the first information signal in view of a reference temperature; and a judging device for judging the nature of the gasoline from the derived concentration of the additive and the corrected first information signal.

REFERENCES:
patent: 4905655 (1990-03-01), MacKawa
patent: 4971615 (1990-11-01), Gonze
patent: 4982709 (1991-01-01), Oota
patent: 4989570 (1991-02-01), Kuribara et al.
patent: 5005402 (1991-04-01), Pischinger et al.
patent: 5060619 (1991-10-01), Sakurai et al.
patent: 5086745 (1992-02-01), Nuhimura et al.

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