Optimized Fuel Economy Control of Power-Split Hybrid Electric Vehicle with Particle Swarm Optimization

This research focused on real-time optimization control to improve the fuel consumption of power-split hybrid electric vehicles. Particle swarm optimization (PSO) was implemented to reduce fuel consumption for real-time optimization control. The engine torque was design-variable to manage the energy...

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Bibliographic Details
Published in:Energies (Basel) 2020-05, Vol.13 (9), p.2278
Main Authors: Hwang, Hsiu-Ying, Chen, Jia-Shiun
Format: Article
Language:English
Subjects:
Carbon dioxide
Computer simulation
Consumption
Control algorithms
Electric vehicles
Emissions
Energy efficiency
Energy industry
Energy sources
Fuel consumption
Fuel economy
Fuzzy logic
Genetic algorithms
hybrid electric vehicle
Optimization
Optimization algorithms
particle swarm optimization
power-split
Powertrain
Real time
Simulation
Torque
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Summary:This research focused on real-time optimization control to improve the fuel consumption of power-split hybrid electric vehicles. Particle swarm optimization (PSO) was implemented to reduce fuel consumption for real-time optimization control. The engine torque was design-variable to manage the energy distribution of dual energy sources. The AHS II power-split hybrid electric system was used as the powertrain system. The hybrid electric vehicle model was built using Matlab/Simulink. The simulation was performed according to US FTP-75 regulations. The PSO design objective was to minimize the equivalent fuel rate with the driving system still meeting the dynamic performance requirements. Through dynamic vehicle simulation and PSO, the required torque value for the whole drivetrain system and corresponding high-efficiency engine operating point can be found. With that, the two motor/generators (M/Gs) supplemented the rest required torques. The composite fuel economy of the PSO algorithm was 46.8 mpg, which is a 9.4% improvement over the base control model. The PSO control strategy could quickly converge and that feature makes PSO a good fit to be used in real-time control applications.
ISSN:1996-1073
1996-1073
DOI:10.3390/en13092278