Method of analyzing fuel component using an RF sensor for a vehicle

Patent metadata

Field	Value
Publication number	US-10753302-B2
Application number	US-201816202464-A
Country	US
Kind code	B2
Filing date	Nov 28, 2018
Priority date	Aug 28, 2018
Publication date	Aug 25, 2020
Grant date	Aug 25, 2020

Abstract

A method of analyzing fuel component using an RF (Radio Frequency) sensor for a vehicle includes: receiving a new fuel into a fuel tank so as to mix existing fuel in the fuel tank with the new fuel, measuring a resonance frequency of the mixed fuel using an RF sensor, comparing the measured resonance frequency of the mixed fuel with a resonance frequency of a standard fuel, determining whether the mixed fuel is a normal fuel through the comparison, maintaining an engine combustion pattern corresponding to the standard fuel when the mixed fuel is a normal fuel, and operating reflecting an engine combustion control.

First claim

What is claimed is:

1. A method of analyzing a fuel component using an RF (Radio Frequency) sensor for a vehicle, the method comprising:
receiving a new fuel into a fuel tank so as to mix an existing fuel of the fuel tank with the new fuel;
measuring a resonance frequency of the mixed fuel using an RF sensor;
comparing the measured resonance frequency of the mixed fuel with a resonance frequency of a standard fuel;
determining whether the mixed fuel is a normal fuel;
maintaining an engine combustion pattern corresponding to the standard fuel when the mixed fuel is determined as the normal fuel;
operating reflecting an engine combustion control;
after determining whether the mixed fuel is a normal fuel, measuring a sulfur content included in the mixed fuel when the mixed fuel is not the normal fuel;
comparing the measured sulfur content of the mixed fuel with sulfur content information of the standard fuel to derive a difference; and
adjusting a desulfurization timing of a catalyst when the mixed fuel is injected.

2. The method of claim 1 , wherein:
the RF sensor is a patch type sensor which includes a first patch sensor attached to one side of the fuel tank and a second patch sensor attached to an outside of the fuel tank to face the first patch sensor.

3. The method of claim 1 , wherein:
the RF sensor is a monopole type sensor which includes a plate patch attached to one side of the fuel tank, and a probe connected to the plate patch and penetrating an inside of the fuel tank to be infiltrated with the fuel.

4. A method of analyzing a fuel component using an RF (Radio Frequency) sensor for a vehicle, the method comprising:
receiving a new fuel into a fuel tank so as to mix an existing fuel of the fuel tank with the new fuel;
measuring a resonance frequency of the mixed fuel using an RF sensor;
comparing the measured resonance frequency of the mixed fuel with a resonance frequency of a standard fuel;
determining whether the mixed fuel is a normal fuel;
determining whether a temperature of an outside air is above a predetermined temperature when the mixed fuel is determined as the normal fuel,
maintaining an engine combustion pattern corresponding to a standard temperature and the standard fuel when the temperature of the outside air is above the predetermined temperature;
operating reflecting an engine combustion control;
after determining whether the temperature of the outside air is above the predetermined temperature, determining a stability of the engine combustion when the temperature of the outside air is not above the predetermined temperature; and
notifying that the fuel is defective and alerting that the engine combustion is an abnormal combustion.

5. The method of claim 4 , further comprising:
after determining whether the mixed fuel is the normal fuel, determining whether the temperature of the outside air is below the predetermined temperature when the mixed fuel is not the normal fuel;
determining the stability of the engine combustion when the temperature of the outside air is not below the predetermined temperature;
notifying that the fuel is defective and warning oiling when the fuel is abnormal; and
operating reflecting the engine combustion control when the engine combustion is not an abnormal combustion.

6. The method of claim 5 , further comprising:
after determining whether the temperature of the outside air is below the predetermined temperature, determining an engine combustion mode corresponding to a combustible fuel with DI (drivability) value information of the measured fuel when the temperature of the outside air is below the predetermined temperature; and
optimizing combustion and operating reflecting ambient environment and fuel characteristics.

7. The method of claim 4 , wherein the RF sensor is a patch type sensor which includes a first patch sensor attached to one side of the fuel tank and a second patch sensor attached to an outside of the fuel tank to face the first patch sensor.

8. The method of claim 4 , wherein the RF sensor is a monopole type sensor which includes a plate patch attached to one side of the fuel tank, and a probe connected to the plate patch and penetrating an inside of the fuel tank to be infiltrated with the fuel.

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp
• Jeju National Univ Industry-Academic Cooperation Foundation

Inventors

• Lee Jin Ha
• Lee Chong Hyun

Classifications

• G01N33/22

  Fuels; Explosives · CPC title

• G01N29/036 Primary

  by measuring frequency or resonance of acoustic waves · CPC title

• G01N23/00

  Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 · CPC title

• F02P5/1502

  using one central computing unit · CPC title

• F02D41/0025

  Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures · CPC title