Heating Ethanol, the 3<sup>rd</sup> Generation

Oliveira, Fernando de; Gentini, Isaac; Lepsch, Fernando; Siegle, Alex; Ferreira, Guilherme Torres

doi:10.4271/2017-36-0247

Cited by 4 publications

(2 citation statements)

References 5 publications

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“…Applying an auxiliary cold start system, the startup and warmup injected fuel can be heated above the flash point to get a better vaporization and consequently better combustion quality. There are two main fuel heating technologies currently available: heaters in the fuel rail and heated injectors [12], [13], [14]. The test vehicle was equipped with the first type of technology.…”

Section: Actions For Nmog Emissions Reductionmentioning

confidence: 99%

Desafios e técnicas para atender os limites de emissões do Proconve L7 com motores de baixa cilindrada PFi Flex Fuel

Lopes¹,

Júnior²,

Miyashita³

et al. 2021

Blucher Engineering Proceedings

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One of the main challenges for OEMs to reduce tailpipe emissions is to meet emissions regulation at minimum costs, keeping the vehicle at affordable price to the final customer. Starting in January 2022, all vehicles sold in Brazil will need to comply with PROCONVE L7 (PL7) emissions regulation. PL7 imposes more stringent emissions limits and new procedures to be followed such as the NMOG (Non-Methane Organic Gases) determination. This paper details the NMOG calculation with ozone formation potential corrections. The PL7 NMOG + NOx emissions limit is one of the biggest challenges when running tests with EHR fuel (reference hydrous ethanol) mainly due to aldehydes and unburned ethanol generation prior to engine warmup. The majority of NMOG is generated during the cold phase of ABNT NBR 6601 emissions cycle. This paper aims to detail potential actions to reduce NMOG and meet the PL7 emissions limit when running a light passenger vehicle with low displacement PFI (Port Fuel Injection), normally aspirated, three cylinders engine and fueled with EHR fuel. The emissions tests were run at Ford Tatuí Development Center.

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Section: Actions For Nmog Emissions Reductionmentioning

confidence: 99%

Desafios e técnicas para atender os limites de emissões do Proconve L7 com motores de baixa cilindrada PFi Flex Fuel

Lopes¹,

Júnior²,

Miyashita³

et al. 2021

Blucher Engineering Proceedings

View full text Add to dashboard Cite

show abstract

“…For this work, the following computational applications were used: Matlab v2015b, ATI VISION 5.2.1, dSPACE ControlDesk 6.1. The ACSS has the purpose of controlling and monitoring the heaters inside the fuel rail [2], [3]. Th e PL7 NMOG emissions limit will require Port Fuel Injection (PFI) flex fuel engines to heat the hydrated ethanol for engine startup fueling because unburned ethanol discount is being phased out [4].…”

Section: Introductionmentioning

confidence: 99%

Validação das Interfaces entre o Sistema de Partida Auxiliar e o Módulo de Controle Motor utilizando o Hardware in the Loop

Scarazzato¹,

Labate²,

Júnior³

et al. 2021

Blucher Engineering Proceedings

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Hardware in the Loop (HiL) testing is a simulation technique where the PCM (Powertrain Control Modu le) is connected to a test bench. The engine behavior is emulat ed through an engine model inside the HiL virtual environment. This technique avoids vehicle testing and allows to run thousands of scenarios at low cost and reduced timing. The new Brazilian PROCONVE L7 regulation imposes NMOG (Non-Methane Organic Gas es) emissions limit and unburned ethanol discount will n o t b e allowed. It is a recognized challenge to meet NMOG emissions limit when running hydrated ethanol (E100 fu el) in port fuel injection engines. To overcome this , an Auxiliary Cold Start System (ACSS) can be applied to heat the E100 prior to cranking and during engine warmup, which improves combustion quality. The interface between ACSS and PCM requires functional validation. This s tud y proposes to improve the HiL environment by creatin g t h e ACSS model, which needs to be integrated with the current model-based system. The ACSS model development will be based on the analysis of requirements, architecture design and functional logic definition. This paper will evaluate the portion of the PCM software wh ich con tro ls the ACSS, verifying software responses for each error state, message synchronization and heating cycles.

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NMOG Emissions Results According to PROCONVE L7 Regulation. Flex Fuel Case Study.

Sarracini¹,

Miyashita²,

Carvalho³

2021

SAE Technical Paper Series

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Heating Ethanol, the 3^rd Generation

Cited by 4 publications

References 5 publications

Desafios e técnicas para atender os limites de emissões do Proconve L7 com motores de baixa cilindrada PFi Flex Fuel

Desafios e técnicas para atender os limites de emissões do Proconve L7 com motores de baixa cilindrada PFi Flex Fuel

Validação das Interfaces entre o Sistema de Partida Auxiliar e o Módulo de Controle Motor utilizando o Hardware in the Loop

NMOG Emissions Results According to PROCONVE L7 Regulation. Flex Fuel Case Study.

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Heating Ethanol, the 3rd Generation

Cited by 4 publications

References 5 publications

Desafios e técnicas para atender os limites de emissões do Proconve L7 com motores de baixa cilindrada PFi Flex Fuel

Desafios e técnicas para atender os limites de emissões do Proconve L7 com motores de baixa cilindrada PFi Flex Fuel

Validação das Interfaces entre o Sistema de Partida Auxiliar e o Módulo de Controle Motor utilizando o Hardware in the Loop

NMOG Emissions Results According to PROCONVE L7 Regulation. Flex Fuel Case Study.

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Product

Resources

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Heating Ethanol, the 3^rd Generation