Research on Simulation and Optimization of Motorcycle Fuel Consumption Based on IGNITE
Reducing vehicle fuel consumption is a crucial technical approach to mitigating CO2 emissions.Utilizing Ricardo's IGNITE vehicle performance calculation software as the platform,a motorcycle vehicle performance calculation model was established and exper-imentally validated.Based on the validated model,the optimization software HEEDS was employed to set the final drive ratio and indi-vidual gear ratios as optimization variables,optimizing fuel consumption during the WMTC.The correlation coefficients between fuel consumption and various optimization variables were derived,clarifying the specific contribution of each optimized gear ratio to fuel re-duction and indicating future optimization directions.Additionally,based on the optimization analysis results,the optimal variable pa-rameter configurations for achieving the lowest WMTC fuel consumption were determined.Through further optimization calculations,the cyclic trajectory patterns for low WMTC fuel consumption were discovered:At low loads,where friction losses account for a significant proportion,the cyclic operating conditions tend to operate in the low-speed region.As the load increases,the proportion of friction los-ses gradually decreases,while the thermal efficiency proportion correspondingly increases,shifting the cyclic trajectory towards the me-dium-speed segment with higher combustion efficiency.Along the constant power curve,the overall trend of the cyclic operating condi-tions is to operate in the high-load rate region.
simulationfuel consumptionmotorcycletransmission ratio
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