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Fuel composition sensing systems and methods using emf wave propagation

A fuel, sensor technology, applied in the direction of material analysis by electromagnetic means, material analysis, material capacitance, etc., can solve problems such as failure to provide, and achieve the effect of promoting the minimization of characteristics, risks and/or the like

Inactive Publication Date: 2009-11-18
SCHRADER ELECTRONICS LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The prior art fails to provide a reliable, inexpensive and accurate system and method for measuring fuel composition in a motor vehicle using a system and method that can be installed on the exterior of a fuel line, fuel tank or the like

Method used

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  • Fuel composition sensing systems and methods using emf wave propagation
  • Fuel composition sensing systems and methods using emf wave propagation
  • Fuel composition sensing systems and methods using emf wave propagation

Examples

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Embodiment Construction

[0028] figure 1 and 2 It is an embodiment of the multi-fuel sensor 100 of the present invention, and the multi-fuel sensor 100 is arranged together with the fuel pipe 102 by, for example, mounting the multi-fuel sensor case 115 on the base plate 117 and surrounding the fuel pipe 102 . Alternative embodiments require mounting the multi-purpose fuel sensor of the present invention to the side or bottom of the fuel tank. Typically, the fuel line 102 or the aforementioned fuel tank is constructed of a non-conductive material such as plastic.

[0029] image 3 The PCB 105 and capacitor plates 110 and 112 of the multi-fuel sensor 100 are shown. Embodiments of the multi-fuel sensor 100 house the PCB 105 within a housing 115 . PCB 105 may mount and / or define a controller including an RF generator and an analog-to-digital converter (ADC). The PCB 105 may also include: an antenna driver having an output and an input coupled to the RF generator; and a resonant circuit coupled to th...

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PUM

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Abstract

A flex fuel sensor is deployed in conjunction with the fuel transfer line (e.g. around a plastic fuel line) or at the bottom / side of a fuel tank. An RF signal of a constant frequency may be generated across a resonant circuit, which comprises of an inductor and a PCB trace capacitor, capacitor plates, semi cylindrical capacitor plates, or the like. Electromagnetic radiation is propagated into the passing fuel in the transfer pipe. The conductivity and dielectric properties of the fuel change the capacitance of the trace capacitor / capacitor plates. These changes are proportional to ethanol / alcohol content of the fuel and are preferably detected by a microcontroller, or the like, and then transmitted to a flex fuel vehicle Engine Management System.

Description

[0001] Cross References to Related Applications [0001] This application is entitled to US Provisional Application No. 60 / 875,439, entitled "Fuel Composition Sensing System and Method Using Propagation of EMF Waves," filed December 18, 2006, which is hereby incorporated by reference. This application also refers to U.S. Patent Application Serial No. 11 / 431,912, filed May 10, 2006, entitled "System and Method for Sensing Liquid Level Using Propagation of EMF Waves," and filed May 8, 2007. US Patent Application Serial No. 11 / 800,965, entitled "Liquid Level and Composition Sensing System and Method Using Propagation of EMF Waves," both of which are also incorporated herein by reference. technical field [0002] The present invention generally relates to systems and methods for sensing the type of liquid passing through pipelines or stored in fuel tanks and other containers. More specifically, the present invention relates to sensing fuel composition in a Flexible Fuel Vehicle ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D19/08G01N27/22G01N33/28
CPCG01N27/221G01N33/2852
Inventor I·布达乌德A·佩奇A·麦考尔
Owner SCHRADER ELECTRONICS LTD
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