Multi-Objective Optimization and Test of a Tractor Drive Motor

Liu, Mengnan; Yan-ying, LI; Zhao, Sixia; Han, Bing; Lei, Shenghui; Xu, Longya

doi:10.3390/wevj13020043

Cited by 8 publications

(7 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this study, a diesel-electric parallel hybrid tractor is considered as the research object. Meanwhile, an energy-saving control strategy based on instantaneous optimization of the required torque is proposed [18][19][20][21][22][23]. By optimizing the torque of both the diesel engine and motor, the required torque of the entire machine can be distributed in real time, which reduces the equivalent fuel consumption of the entire machine while ensuring power stability.…”

Section: Introductionmentioning

confidence: 99%

Energy-Saving Control of Hybrid Tractors Based on Instantaneous Optimization

Zhang

Feng

et al. 2023

WEVJ

Self Cite

View full text Add to dashboard Cite

In this study, an energy-saving control strategy based on instantaneous optimization is proposed to improve the energy efficiency of hybrid tractors. Using a parallel diesel–electric hybrid tractor as the research object, the topological and working characteristics were analyzed, and a coupled dynamic model of rotary tillage and tractor plow was constructed. Aiming to minimize the equivalent fuel consumption of the entire machine, the motor and diesel engine torques were taken as the control variables, and the state of charge of the power battery was taken as the state variable. Subsequently, an energy-saving control strategy based on instantaneous optimization is proposed. Finally, a simulation experiment was carried out using MATLAB to verify the effectiveness of the energy-saving control strategy based on instantaneous optimization. Compared with the energy-saving control strategy based on power-following, the results show that energy-saving control strategy based on instantaneous optimization can reasonably control the operating state of the diesel engine and motor. Therefore, the diesel engine and motor work in the high-efficiency area, and effectively reduce the equivalent fuel consumption of the tractor during field operation. Under rotary tillage and plowing conditions, equivalent fuel consumption is reduced by 4.70% and 6.31%, respectively.

show abstract

Section: Introductionmentioning

confidence: 99%

Energy-Saving Control of Hybrid Tractors Based on Instantaneous Optimization

Zhang

Feng

et al. 2023

WEVJ

Self Cite

View full text Add to dashboard Cite

show abstract

“…The tractor is one of the most important agricultural machinery [1,2] and faces complicated working conditions. Different operations, such as plowing, deep scarification, winter tillage, rotary tillage, seeding, transplanting, harvest, transportation, ditching and so on, require tractors to meet different operational requirements [3][4][5][6]. The performance of speed regulating transmission system of tractors, such as transmission ratio, the variation range of transmission ratio, transmission efficiency and so on, has a great influence on the fuel economy, dynamic property and other key performance indexes of the full tractor.…”

Section: Introductionmentioning

confidence: 99%

Research on HMCVT Parameter Design Optimization Based on the Service Characteristics of Agricultural Machinery in the Whole Life Cycle

Cheng

2023

Machines

View full text Add to dashboard Cite

The HMCVT (Hydro-mechanical Continuously Variable Transmission) can realize continuously variable speed in a large range and transmit high power through power diving, and thus, it is widely applied in agricultural machineries, such as tractors. The engineering technology requirements of precision agriculture and intelligent agriculture have put forward higher requests for the research and development of HMCVT. In order to further improve the performance of HMCVT in the design stage and match the service characteristics of agricultural tractors in the whole life cycle, this paper proposes a new HMCVT optimization design method which mainly consists of 5 steps. The proposed method takes the regular and continuous transmission ratio variation, matching the working requirements in the whole life cycle of agricultural tractors and transmission efficiency maximization as comprehensive objectives. The improved genetic algorithm (I-GA) is applied. The HMCVT efficiency characteristic model combines the characteristic efficiency model of the hydraulic system, which has been verified, and the theoretical calculation model based on the engaging power method. By analyzing the statistical data of the tractor speed operating frequency in the whole life cycle, the proposed method is used to determine the weight of each hydro-mechanical power dividing stage (i.e., HM stage) service time. In the design process, the HMCVT efficiency is integrated with the displacement ratio so as to realize the evaluation of the maximum efficiency in the whole life cycle of the tractor. Research results show that the proposed method can improve HMCVT performance significantly, and the mean error between speed regulating characteristics and expected value in design is 1.04% or so. The HMCVT service efficiency in the whole life cycle of the tractor has been improved by 19.93%. The research in the paper offers a valuable reference for getting the law of HMCVT characteristics and performance improvement design of tractors.

show abstract

“…However, substantial portions of the urban populace continue to endure noise levels surpassing recommended thresholds, signifying an urgent need for mitigation strategies [1,2]. Beyond regulatory pressures, market demand for effective acoustic materials is also growing within the automotive and aerospace sectors as vehicles become more lightweight and integrate alternative propulsion systems [8][9][10][11][12]. With the advent of hybrid and electric vehicles, detailed understanding of noise generation mechanisms from drivetrains, road friction, tires, and high-frequency electric motors has become paramount [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…Beyond regulatory pressures, market demand for effective acoustic materials is also growing within the automotive and aerospace sectors as vehicles become more lightweight and integrate alternative propulsion systems [8][9][10][11][12]. With the advent of hybrid and electric vehicles, detailed understanding of noise generation mechanisms from drivetrains, road friction, tires, and high-frequency electric motors has become paramount [8][9][10]. Vehicle interior noise also remains a primary customer satisfaction and comfort metric [13,14].…”

Section: Introductionmentioning

confidence: 99%

“…Materials 2023, 16, 7148 2 of 19 tomotive and aerospace sectors as vehicles become more lightweight and integrate alternative propulsion systems [8][9][10][11][12]. With the advent of hybrid and electric vehicles, detailed understanding of noise generation mechanisms from drivetrains, road friction, tires, and high-frequency electric motors has become paramount [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Biomimetic Coupling Structure Increases the Noise Friction and Sound Absorption Effect

Ma,

2023

Materials

View full text Add to dashboard Cite

Environmental noise pollution is a growing challenge worldwide, necessitating effective sound absorption strategies to improve acoustic environments. Materials that draw inspiration from nature’s structural design principles can provide enhanced functionalities. Wood exhibits an intricate multi-scale porous architecture that can dissipate acoustic energy. This study investigates a biomimetic sound-absorbing structure composed of hierarchical pores inspired by the vascular networks within wood cells. The perforated resonators induce complementary frequency responses and porous propagation effects for broadband attenuation. Samples were fabricated using 3D printing for systematic testing. The pore size, porosity, number of layers, and order of the layers were controlled as experimental variables. Acoustic impedance tube characterization demonstrated that optimizing these architectural parameters enables absorption coefficients approaching unity across a broad frequency range. The tuned multi-layer porous architectures outperformed single pore baselines, achieving up to a 25–35% increase in the average absorption. The bio-inspired coupled pore designs also exhibited a 95% broader working bandwidth. These enhancements result from the increased viscous losses and tailored impedance matching generated by the hierarchical porosity. This work elucidates structure–property guidelines for designing biomimetic acoustic metamaterials derived from the porous morphology of wood. The results show significant promise for leveraging such multi-scale cellular geometries in future materials and devices for noise control and dissipative engineering applications across diverse sectors.

show abstract

Multi-Objective Optimization and Test of a Tractor Drive Motor

Cited by 8 publications

References 23 publications

Energy-Saving Control of Hybrid Tractors Based on Instantaneous Optimization

Energy-Saving Control of Hybrid Tractors Based on Instantaneous Optimization

Research on HMCVT Parameter Design Optimization Based on the Service Characteristics of Agricultural Machinery in the Whole Life Cycle

Biomimetic Coupling Structure Increases the Noise Friction and Sound Absorption Effect

Contact Info

Product

Resources

About