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BRPI0703403A - engine control system for a flexibly fuel engine - Google Patents

engine control system for a flexibly fuel engine

Info

Publication number
BRPI0703403A
BRPI0703403A BRPI0703403-2A BRPI0703403A BRPI0703403A BR PI0703403 A BRPI0703403 A BR PI0703403A BR PI0703403 A BRPI0703403 A BR PI0703403A BR PI0703403 A BRPI0703403 A BR PI0703403A
Authority
BR
Brazil
Prior art keywords
fuel
engine
auxiliary
control system
main
Prior art date
Application number
BRPI0703403-2A
Other languages
Portuguese (pt)
Inventor
Yuuichi Takamatsu
Original Assignee
Denso Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Denso Corp filed Critical Denso Corp
Publication of BRPI0703403A publication Critical patent/BRPI0703403A/en
Publication of BRPI0703403B1 publication Critical patent/BRPI0703403B1/en

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/30—Use of alternative fuels, e.g. biofuels

Landscapes

  • Combined Controls Of Internal Combustion Engines (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

SISTEMA DE CONTROLE DE MOTOR PARA UM MOTOR DE COMBUSTìVEL FLEXìVEL Um motor de combustível flexível (10) é operável com álcool como combustível principal em um tanque de combustível principal (24) e gasolina como combustível auxiliar em um tanque de combustível auxiliar (21), e operado normalmente com somente o combustível principal a partir de um injetor de combustível principal (19) com base no controle de relação de ar-combustível depois que o motor (10) tenha sido aquecido. O combustível auxiliar é suprido de maneira forçada para o motor (10) por um dado período de tempo em um estado de operação inativo. Um valor absoluto do valor de integração de um desvio entre um valor detectado de um sensor de relação de ar-combustível (32) depois que o combustível auxiliar tenha sido suprido e uma relação estequiométrica de ar-combustível seja calculada, e o nível de combustível dentro do tanque de combustível auxiliar (21) é monitorado com base no valor absoluto calculado.ENGINE CONTROL SYSTEM FOR A FLEXIBLE FUEL ENGINE A flexible fuel engine (10) is operable with alcohol as main fuel in a main fuel tank (24) and gasoline as auxiliary fuel in an auxiliary fuel tank (21), and normally operated with only main fuel from a main fuel injector (19) based on air-fuel ratio control after engine (10) has been warmed. Auxiliary fuel is forcibly supplied to the engine 10 for a given period of time in an idle operating state. An absolute value of the integration value of a deviation between a detected value of an air fuel ratio sensor (32) after auxiliary fuel has been supplied and a stoichiometric air fuel ratio is calculated, and the fuel level inside the auxiliary fuel tank (21) is monitored based on the calculated absolute value.

BRPI0703403A 2006-08-24 2007-08-24 engine control system for a flexible fuel engine BRPI0703403B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006227610A JP4539622B2 (en) 2006-08-24 2006-08-24 Engine control device for flex fuel engine

Publications (2)

Publication Number Publication Date
BRPI0703403A true BRPI0703403A (en) 2008-04-22
BRPI0703403B1 BRPI0703403B1 (en) 2018-12-18

Family

ID=39235292

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0703403A BRPI0703403B1 (en) 2006-08-24 2007-08-24 engine control system for a flexible fuel engine

Country Status (2)

Country Link
JP (1) JP4539622B2 (en)
BR (1) BRPI0703403B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101418726B (en) * 2008-11-27 2012-01-04 奇瑞汽车股份有限公司 Fuel control system and control method for alcohols and gasoline dual fuel engine
KR101755895B1 (en) 2015-11-24 2017-07-07 현대자동차주식회사 Fuel auxiliary tank for flexible fuel vehicle

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63147937A (en) * 1986-12-10 1988-06-20 Mazda Motor Corp Fuel supply device for engine
JPH0214459U (en) * 1988-07-11 1990-01-30
JPH03267538A (en) * 1990-03-19 1991-11-28 Toyota Motor Corp Fuel increase controller of internal combustion engine
JP3436166B2 (en) * 1999-01-21 2003-08-11 株式会社デンソー Abnormal diagnosis device for fuel level detector
JP2000337192A (en) * 1999-05-27 2000-12-05 Hitachi Ltd Engine control device
JP2006063959A (en) * 2004-08-30 2006-03-09 Denso Corp Fuel remaining amount estimating device for vehicle and vehicle control device

Also Published As

Publication number Publication date
JP2008050990A (en) 2008-03-06
JP4539622B2 (en) 2010-09-08
BRPI0703403B1 (en) 2018-12-18

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Legal Events

Date Code Title Description
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 18/12/2018, OBSERVADAS AS CONDICOES LEGAIS.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 15A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2684 DE 14-06-2022 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.