Feasibility Study on MHEV Application for Motorbikes: Components Sizing, Strategy Optimization through Dynamic Programming and Analysis of Possible Benefits

Reducing CO2 emissions is becoming a particularly important goal for motorcycle manufacturers. A fully electric transition still seems far away, given the difficulties in creating an electric motorcycle with an acceptable range and mass. This opens up opportunities for the application of hybrid powe...

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Bibliographic Details
Published in:Vehicles 2024-09, Vol.6 (3), p.1442-1467
Main Authors: Mangeruga, Valerio, Cusati, Dario, Raimondi, Francesco, Giacopini, Matteo
Format: Article
Language:English
Subjects:
CO2 reduction
Configuration management
Cost benefit analysis
Cycle ratio
Dynamic programming
Efficiency
Electric motorcycles
Energy consumption
Energy management
Energy recovery
energy storage
Feasibility studies
Fuel consumption
hybrid electric vehicles
Impact analysis
Kinetic energy
mild-hybrid motorcycles
Motorcycles
Optimization
Powertrain
Sizing
Technology assessment
Vehicles
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Summary:Reducing CO2 emissions is becoming a particularly important goal for motorcycle manufacturers. A fully electric transition still seems far away, given the difficulties in creating an electric motorcycle with an acceptable range and mass. This opens up opportunities for the application of hybrid powertrains in motorcycles. Managing mass, cost, and volume is a challenging issue for motorcycles; therefore, an MHEV architecture represents an interesting opportunity, as it is a low-complexity and low-cost solution. Firstly, in this work, an adequate sizing of the powertrain components is studied for the maximum reduction in fuel consumption. This is performed by analyzing many different system configurations with different hybridization ratios. A 1D simulation of the motorcycle traveling along the homologation cycle (WMTC) is performed, and the powerunit use strategy is optimized for each configuration using the Dynamic Programming technique. The results are analyzed in order to highlight the impact of kinetic energy recovery and engine load-point shifting on fuel consumption reduction. The results show the applicability of MHEV technology to road motorcycles, thus providing a useful tool to analyze the cost/benefit ratio of this technology. The developed methodology is also suitable for different vehicles once a specific test cycle is known.
ISSN:2624-8921
2624-8921
DOI:10.3390/vehicles6030068