Evaluation of the Operational Viability of the Use of Electricity as a Source of Power in Agricultural Tractors

Volpato, Carlos Eduardo Silva; Paula, Vanderson Rabelo de; Barbosa, Jackson Antonio; Volpato, Eduardo Lordelo

doi:10.13031/aim.20162458121

Cited by 2 publications

(1 citation statement)

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“…At present, the powertrains of PETs on the market are mostly driven by a single motor, whereby the diesel engine is replaced by batteries and a motor and the original multi-gear transmission is retained [5][6][7]. Considering the different power requirements of tractors under various working conditions, the motor often works in a low-efficiency region under low-load conditions.…”

Section: Introductionmentioning

confidence: 99%

Design and Optimization of a Dual-Input Coupling Powertrain System: A Case Study for Electric Tractors

Xie

et al. 2020

Applied Sciences

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In this study, a dual-input coupling powertrain system (DICPS) was proposed to improve the energy utilization efficiency of pure electric tractors (PETs). The working principles of the DICPS under different modes were analyzed and dynamic models were established. To study the influence of changing key parameters in the DICPS on the economic performance of PETs, a parameter-matching design method was proposed and the feasible region of the design parameters was determined according to the tractor’s dynamic performance. In addition, we put forward an energy management strategy (EMS) based on the optimal system efficiency and a dual-motor-driven electric tractor (DMET) model was built in MATLAB/Simulink. The simulation results revealed that different parameter configurations of DICPS will lead to significant changes in overall efficiency, with a maximum difference of 6.6% (under a rotary tillage cycle). We found that the optimal parameter configuration for the DMET under two typical working conditions was PDR = 0.5, k = 1.6. Compared with the single-motor powertrain system (SMPS), the DICPS with the optimal configuration of key parameters can significantly improve overall efficiency by about 9.8% (under a plowing cycle).

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Section: Introductionmentioning

confidence: 99%

Design and Optimization of a Dual-Input Coupling Powertrain System: A Case Study for Electric Tractors

Xie

et al. 2020

Applied Sciences

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Design of Energy Management Strategy for Dual-Motor-Driven Electric Tractors

YANG,

SHI,

JIANG

et al. 2024

INMATEH

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At present, electric tractors experience significant battery energy loss during operation, resulting in a short continuous running time. Therefore, in order to reduce the power consumption of the tractor drive system, minimize battery energy loss, and extend the operating time under various conditions, this paper presents a method for driving an electric tractor based on dual-motor coupling. Based on the characteristics of the transmission structure, an online torque distribution strategy for dual-motor coupling-driven electric tractors using a fuzzy control approach is proposed. First, an enhanced genetic algorithm is utilized to optimize the fuzzy rule table. Simultaneously, it is compared with the offline optimization strategy of dynamic programming. Subsequently, a method that integrates test data models and theoretical models is employed to establish an efficiency model of key components of the electric tractor drive system and a longitudinal dynamics model of the entire machine. The performance of the entire vehicle was simulated and analyzed under plowing conditions. Finally, on the experimental bench, conduct steady-state load tests and dynamic performance tests on the dual-motor coupled drive system. The results show that the State of Charge (SOC) change trends of the fuzzy control strategy based on the improved genetic algorithm and the dynamic programming strategy are similar. The SOC change values are close, which enhances the adaptability of the electric tractor in various operating conditions. Compared with the fuzzy control strategy, the improved strategy reduced average power consumption by 8.8%, demonstrating that the fuzzy control energy management strategy based on the enhanced genetic algorithm is both economical and superior. The bench experiment demonstrated that the dual-motor drive system can adapt to load changes to achieve power distribution between the two motors, meeting the required workload while reducing power consumption.

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Evaluation of the Operational Viability of the Use of Electricity as a Source of Power in Agricultural Tractors

Cited by 2 publications

References 0 publications

Design and Optimization of a Dual-Input Coupling Powertrain System: A Case Study for Electric Tractors

Design and Optimization of a Dual-Input Coupling Powertrain System: A Case Study for Electric Tractors

Design of Energy Management Strategy for Dual-Motor-Driven Electric Tractors

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