Residual fuel amount-estimating system for fuel tank of internal

Details Residual fuel amount-estimating system for fuel tank of internal Residual fuel amount-estimating system for fuel tank of internal

1998-02-19

1999-03-23

Hofsass, Jeffery A.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340614, 73113, B60Q 100

Patent

active

058866256

ABSTRACT:
A residual fuel amount-estimating system for a fuel tank of an internal combustion engine installed in a vehicle. A pressure sensor detects the pressure within the fuel tank. The interior of the fuel tank is negatively pressurized, and a rate of change in the pressure within the fuel tank during negative pressurization is detected. A residual fuel amount within the fuel tank is estimated, based on the detected rate of change in the pressure within the fuel tank.

REFERENCES:
patent: 4488970 (1984-12-01), Clark
patent: 4734682 (1988-03-01), Bond, Jr.
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patent: 5398662 (1995-03-01), Igarashi et al.
patent: 5678523 (1997-10-01), Hashimoto et al.
patent: 5775307 (1998-07-01), Isobe et al.
patent: 5780728 (1998-07-01), Takamori

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