Modeling of Flywheel Hybrid Powertrain to Optimize Energy Consumption in Mechanical Hybrid Motorcycle

Abstract

The creation of internal combustion engine is a significant milestone in power engineering world which simplified high mechanical energy demand jobs like moving vehicle and machinery. Even though the internal combustion engine gives lot of advantages, however, this type of engine is incapable to convert the heat energy from fuel combustion to the mechanical energy efficiently. Small capacity engine e.g. motorcycle engine having the power conversion efficiency between 25-30%. Therefore, alternative power source is required to support the internal combustion engine in order to increase the overall system efficiency. These phenomena give encouragement to implement the hybridization process. This is to increase the system efficiency in transferring power to the wheel. Hybridization processes e.g. flywheel as secondary power source can increase power transfer efficiency between 30%-80%. Hence, the purpose of this research is to develop the mathematical model of the power transfer efficiency of flywheel hybrid motorcycle by using back trace simulation method. This model will record the amount of energy use in acceleration phase of the driving cycle. Subsequently, the efficiency ratio of motorcycle power transfer is calculated and comparison of those ratios between the conventional motorcycle and the hybrid motorcycle is made. The outstanding results show that the hybrid motorcycle is capable to conserve the energy used up to 36% compare to the conventional motorcycle that wasted energy up to 200%. As a conclusion, flywheel as the secondary power source is capable to supply enough energy to propel the motorcycle forward.

Matlab-based modeling, simulation and design package for Eletric, Hydraulic and Flywheel hybrid powertrains of a city bus

“…There are a lot of investigations which have generated models for the components of a hybrid powertrain in the literature (Wenzhong Gao et al, 2007;Wishart, 2008;Liukkonen, 2012;Feng and Huang, 2012;Molla, 2010;Abdul Manaf et al, 2013;Diego-Ayala, 2007). In this paper, the method using look-up tables are presented for modeling of three hybrid powertrains.…”

Propulsion architectures using mechanical energy storage

“…They concluded that the payback for additional mechanical hybrid components would be achieved after approximately 50,000 km. Manaf et al 18 presented simulations of a motorcycle equipped with a flywheel for kinetic energy storage and recuperation. They showed that the inclusion of the flywheel in the drivetrain enabled a 36% reduction in fuel consumption on their simplified representative drive cycle.…”

Mini acceleration and deceleration driving strategy to increase the operational time of flywheel hybrid module

“…In performance aspect, the major drawback of flywheel hybrid is in the recharging and storing capability. It only can be charge using regenerative braking which exist during deceleration phase of driving cycle [1]. Although the engine can be used to recharge it, but there is no point because the main purpose of hybrid is to reduce the operation time of the engine.…”