Equivalent consumption minimization strategy based on global optimization of equivalent factor for hybrid tractor-Reference-Cited by-同舟云学术

Equivalent consumption minimization strategy based on global optimization of equivalent factor for hybrid tractor

Published:2024-06-05 Issue:1 Volume:14 Page:
ISSN:2045-2322
Container-title:Scientific Reports
language:en
Short-container-title:Sci Rep

Author:

Zhu Zhen,Zhang Yihan,Zhang Hongwei,Wang Dehai,Chen Long

Abstract

AbstractDue to the increase in emission requirements for non-road vehicles in many countries and the reduction of agricultural personnel, tractors are developing towards high horsepower and electrification. According to the working conditions of high-horsepower tractors, a hydromechanical continuously variable transmission (HMCVT) is designed for hybrid tractors. Taking a tractor equipped with this transmission as the research object, an equivalent factor global optimization model was established and a genetic algorithm was used to optimize the equivalent factor S offline to obtain the optimal equivalent factor of the tractor under different operating mileage and the initial state of charge (SOC) of battery. By using the optimized equivalent factor, the tractor can be in the charge depleting (CD) mode for a longer time on the premise of making full use of the energy in the battery, so as to improve the auxiliary ability of the motor in the whole operation cycle to reduce the fuel consumption of the tractor. The effectiveness of the control strategy is verified by MATLAB/Simulink and hardware in the loop (HIL) tests, and the fuel economy of tractors is improved by 2.939% and 3.909% respectively in the two tests.

Funder

China Postdoctoral Science Foundation

State Key Laboratory of Fluid Power and Mechatronic Systems

National Natural Science Foundation of China

Jiangsu Provincial Key Research and Development Program

Publisher

Springer Science and Business Media LLC

Link

https://www.nature.com/articles/s41598-024-63770-w.pdf

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