[특허]Addition of flexible fuel engine control system

[미국특허] Addition of flexible fuel engine control system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02B-003/06 F02B-003/00 F02D-019/00
출원번호	US-0379823 (2006-04-24)
등록번호	US-7305939 (2007-12-11)
발명자 / 주소	Carlson,Grant B.
출원인 / 주소	Carlson,Grant B.
인용정보	피인용 횟수 : 12 인용 특허 : 17

초록 ▼

The apparatus and method convert the fuel system of an internal combustion engine in a pre-existing (used) vehicle to operate on a mixture of fuels (like ethanol and gasoline) from a single fuel tank. The apparatus includes a fuel composition sensor installed in the fuel line and an electronic control unit with at least one fuel injector driver circuit for controlling an output signal to at least one fuel injector for controlling the air to fuel ratio of the engine. The electronic control unit controls both ignition timing and the air to fuel ratio of the engine based upon the percentage or ratio of the alternative fuel to gasoline from the fuel composition sensor. The electronic control unit receives both timing signals and fuel injector control signals from the engine's original Engine Control Module and the original emission control devices are not modified or replaced.

대표청구항 ▼

What is claimed is: 1. An apparatus converting an OEM type of fuel system of an OEM type engine using an OEM recommended fuel fed to the engine from an OEM type fuel tank, the apparatus comprising: an alternative fuel mixed with the OEM recommended fuel in the OEM type fuel tank; a fuel composition sensor added to the OEM type fuel system to detect a proportional amount of the alternate fuel in the OEM type fuel tank; at least one fuel injector driver circuit controlling an output signal to at least one fuel injector that meters an amount of the mixed fuel delivered to the OEM type engine from the OEM type fuel tank; an electronic control unit containing said fuel injector driver circuit added to the OEM type fuel system and arranged to receive an input from the fuel composition sensor; and the electronic control unit being arranged to change the output signal from the fuel injector driver circuit to the fuel injector to vary the amount of the fuel metered into the OEM type engine to maintain a correct air-to-fuel ratio needed for proper combustion of the mixed fuel from the OEM type tank. 2. The apparatus of claim 1, wherein the engine being convened is a conventional gasoline or diesel internal combustion engine. 3. The apparatus of claim 1, wherein the engine is installed into a previously manufactured motor vehicle, motorboat, truck, tractor, lawnmower or other equipment with an engine. 4. The apparatus of claim 1, wherein the fuel composition sensor is arranged in a fuel supply line upstream of said fuel injector. 5. The apparatus of claim 1 wherein the alternative fuel is ethanol, methanol or biodiesel. 6. The apparatus of claim 1, wherein said fuel injector driver circuit is located in said electronic control unit. 7. The apparatus of claim 1, further including an ignition control circuit controlling ignition timing of the engine based upon the proportion of said alternative fuel in said fuel mixture. 8. The apparatus of claim 7, wherein the ignition control circuit receives an ignition timing signal from the ECM. 9. The apparatus of claim 8 wherein said ignition timing signal received by said ignition control circuit is delayed or advanced by said ignition control circuit before being sent to a spark generating device of the engine. 10. The apparatus of claim 7, wherein said ignition control circuit is located in the said electronic control unit. 11. The apparatus of claim 1, wherein the OEM fuel system included a carburetor. 12. The apparatus according to claim 11 wherein said fuel composition sensor comprises a wideband oxygen sensor to determine the proportion of said alternative fuel in the fuel mixture. 13. The apparatus according to claim 11, wherein the carburetor remains in the fuel system and meters fuel as if the fuel were not a mixed fuel. 14. The apparatus according to claim 13 wherein the said fuel injector is placed relative to the carburetor to provide additional fuel as commanded by the said electronic control unit. 15. The apparatus according to claim 14 wherein the electronic control unit receives from said fuel composition sensor an input representing the proportion of said alternative fuel in the mixture and changes the output signal to the fuel injector driver circuit to control said fuel injector to vary an additional amount of fuel metered into said engine to maintain a correct air-to-fuel ratio needed for proper engine combustion. 16. The apparatus according to claim 15 wherein the fuel composition sensor includes a wideband oxygen sensor to determine the proportion of said alternative fuel in the fuel mixture. 17. The apparatus in claim 11, further including an ignition control circuit controlling ignition timing of the engine based upon the proportion of said alternative fuel in the mixture, wherein the ignition control circuit receives at least one ignition timing signal from a distributor of the engine. 18. The apparatus according to claim 17 wherein said ignition timing signal received by the said ignition control circuit is delayed or advanced by said ignition control circuit before being sent back to the engine's distributor. 19. The apparatus in claim 11, wherein the said fuel injectors are fed by a fuel pump that is fed by a fuel pump for the carburetor.

이 특허에 인용된 특허 (17) 인용/피인용 타임라인 분석

Ament Frank (Troy MI), Alcohol discriminator and fuel control for an internal combustion engine fueled with alcohol-gasoline fuel mixtures.
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Carroll Bruce I. (6137 Denton Boise ID 83704), Alcohol fuel conversion apparatus.
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Carroll Bruce I. (4410 Foothill Dr. Boise ID 83703), Alcohol fuel conversion apparatus for internal combustion engines.
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Porter Fred C. (31065 Stafford Dr. Birmingham MI 48010) Schultz Garth J. (2111 Lovington Ave. ; Apt. #106 Troy MI 48083), Apparatus and method for converting conventionally fueled engines to operate on an alternative fuel.
상세보기
King Steven R. (San Antonio TX), Apparatus and method for providing an alternative fuel system for engines.
상세보기
Gonze Eugene V. (Sterling Heights MI), Combustion engine with multi-fuel capability.
상세보기
Dalton Joel Douglas, Fuel blending ratio inferring method.
상세보기
Dalton Joel Douglas ; Dona Robert Frederick ; Boruta William Edward ; Holmes John William, Fuel control system.
상세보기
Niimi,Kuniaki, Internal combustion engine.
상세보기
Yoshida Masato (Kyoto JPX) Yokoyama Takanao (Nagaokakyo JPX) Nanba Muneyoshi (Kyoto JPX) Kato Yoshihiko (Kyoto JPX) Iida Kazumasa (Kyoto JPX) Miyamoto Katsuhiko (Kyoto JPX), Method for detecting fuel blending ratio.
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Kopera John J. C. (Rochester Hills MI), Method for flexible fuel control.
상세보기
Cheng Yi ; Huff Shean P. ; Krozek Dennis A. ; Seitz Gary L., Method of compensating for changing fuels in a flexible fueled vehicle using a fuel composition sensor.
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Brown David B. (Sterling Heights MI) Gonze Eugene V. (Sterling Heights MI), Multi-fuel engine control with fuel composition responsive fuel viscosity correction.
상세보기
Degobert Paul (Rueil Malmaison FRX) Maut Michel (Les Clayes Sous/Bois FRX) Banet Gerald (Rueil Malmaison FRX), Process and device for determining the composition of an alcohol-petrol mixture, adapted to the automatic regulation of.
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Schmitz Gnter (Aachen DEX) Kutz Hans-Jrgen (Aachen DEX), Process for operating a fuel-burning engine.
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Yamauchi Teruo (Farmington Hills MI) Sasayama Akao (Bronxville NY), System and method of control of internal combustion engine using methane fuel mixture.
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Casacci Carlo (Bologna ITX), System for supplying different fuels to otto engines with electronic fuel-injection.
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이 특허를 인용한 특허 (12) 인용/피인용 타임라인 분석

Kravtsov, Alexander E., Bubble implosion reactor cavitation device, subassembly, and methods for utilizing the same.
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Kravtsov, Alexander E., Bubble implosion reactor cavitation device, subassembly, and methods for utilizing the same.
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Duineveld, John; Splint, Erik T.; Hemsley, Geoffrey V.; Holdeman, Tim, Engine fuel control system.
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Haugen, David James, Flex fuel internal combustion engine system.
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Alger,Terrence Francis; Mangold,Barrett Wade, Flexible fuel engines with exhaust gas recirculation for improved engine efficiency.
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Bailey, Samuel G., Fuel composition estimation and control of fuel injection.
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Dobeck,Michael V., Method and apparatus for modifying fuel injection scheme.
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Haskara, Ibrahim; Wang, Yue-Yun, Method and apparatus for operating a compression ignition engine.
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Dobeck, Michael V.; MacDonald, Andrew M., Method and system for optimizing fuel delivery to a fuel injected engine operating in power mode.
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Carlson, Grant B; Heise, Karl, Methods of flexible fuel engine conversions.
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von Beck, Paul Gerhard, Motorized vehicles spark timing control for use with biofuel gasoline mixture.
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Cologna, Chris M., Systems and methods for using secondary fuels.
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A	생활필수품
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A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Addition of flexible fuel engine control system 원문보기