Simulation of a series hybrid electric vehicle powered by brazilian hydrated ethanol engine

• Autor(a) principal: Emmanuel Jesús Vázquez Peña
• Data de Publicação: 2019
• Tipo de documento: Dissertação
• Idioma: eng
• Título da fonte: Repositório Institucional da UFMG
• Texto Completo: http://hdl.handle.net/1843/31302
• topic: Veículos híbridos elétricos; Etanol hidratado; Consumo de combustível; HEV; E100; Engenharia mecânica; Automóveis - Consumo de combustíveis; Combustíveis para motores

The search for energy security and lower greenhouse gas emissions promoted the commercialization of Hybrid Electric Vehicles (HEVs) and alternative fuels as two separated solutions, instead of together. It is well known that HEVs present better fuel consumption than conventional vehicles, contrarily; vehicles running on ethanol presents lower fuel consumption than vehicles running on gasoline. This thesis analyzes the use of Brazilian hydrated ethanol (E100) in HEVs and its effects on fuel consumption. Therefore, a series HEV model was developed in the GT-Suite software, which used experimental data of two internal combustion engines, both running on E100. The first engine was a Ford Sigma 1.6L flex-fuel while the other engine was a supercharged 1.0L prototype designed to operate exclusively with E100, which can operate with water injection. The simulations covered 5 standard driving cycles and 2 real-world driving cycles. The results showed that, in urban driving cycles, the series HEV model presented lower fuel consumptions than a conventional flex-fuel vehicle model with the same Ford Sigma flex-fuel engine. Furthermore, it also obtained lower consumptions than conventional gasoline and diesel vehicles; in some cases, it also had lower consumptions than HEVs with gasoline engines and, even, with HCCI engines. Similarly, the use of water injection presented better consumptions than without using it. In conclusion, employing E100 in HEVs looks like a viable option to diminish fuel consumption for urban vehicles. Nonetheless, the biggest challenge to apply this technology in other countries could be its cold start operation, which is exacerbated due to the start/stop operation of the HEV’s engine.