Loader power-split transmission system based on a planetary gear set

Lyu, Chang; Zhao, Yanqing; Lyu, Meng

doi:10.1177/1687814017747735

Cited by 3 publications

(4 citation statements)

References 8 publications

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“…The rules for the graphical conversion process are detailed in [14]. The virtual split power ratio β 3 and the split power ratio β 3 of component 3 of the differential planetary mechanism of the loader drive axle are expressed by Equations (5) and (6), respectively:…”

Section: Research On Transmission Efficiency Of the Differential Planmentioning

confidence: 99%

“…The speed ratio k was defined as the ratio of the rotational angular velocity of component 6 (ω 6 ) to component 4 (ω 4 ). It can be found from Equations (5) and (6)…”

Section: Research On Transmission Efficiency Of the Differential Planmentioning

confidence: 99%

“…To improve the transmission efficiency of a loader, Lyu et al [6] designed an output power-split transmission system, in which a planetary gear set was applied as the dynamic coupling element to allow the output power of the loader to be split-transmitted. Xiong et al [7] introduced a sizing approach for both hydrostatic-mechanical power-split transmission (PST) and hydrostatic transmission (HST) systems and presented a multidomain modeling approach for the powertrain of a wheel loader.…”

Section: Introductionmentioning

confidence: 99%

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Integrated Analysis of Influence of Multiple Factors on Transmission Efficiency of Loader Drive Axle

Chi

et al. 2019

Energies

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In this study, a loader drive axle digital model was built using 3D commercial software. On the basis of this model, the transmission efficiency of the main reducing gear, the differential planetary mechanism, and the wheel planetary reducing gear of the loader drive axle were studied. The functional relationship of the transmission efficiency of the loader drive axle was obtained, including multiple factors: the mesh friction coefficient, the mesh power loss coefficient, the normal pressure angle, the helix angle, the offset amount, the speed ratio, the gear ratio, and the characteristic parameters. This revealed the influence law of the loader drive axle by the mesh friction coefficient, mesh power loss coefficient, and speed ratio. The research results showed that the transmission efficiency of the loader drive axle increased with the speed ratio, decreased when the mesh friction coefficient and the mesh power loss coefficient increased, and that there was a greater influence difference on the transmission efficiency of the loader drive axle.

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Section: Research On Transmission Efficiency Of the Differential Planmentioning

confidence: 99%

“…The speed ratio k was defined as the ratio of the rotational angular velocity of component 6 (ω 6 ) to component 4 (ω 4 ). It can be found from Equations (5) and (6)…”

Section: Research On Transmission Efficiency Of the Differential Planmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Integrated Analysis of Influence of Multiple Factors on Transmission Efficiency of Loader Drive Axle

Chi

et al. 2019

Energies

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“…The connection of the high-torque power axle shaft was reviewed through a three-way power transmission of the differential gear system to connect the axle to power generator technology. The focus was on reviewing the power transmission gear system that generates torque at the axle shaft of the power generator [22][23][24][25]. The primary goal was to achieve efficiency in continuous operation and for the rotation of the axle shaft of the machine to have a fixed rate of rotation as specified, as is necessary to produce the required amount of electrical power.…”

Section: Introductionmentioning

confidence: 99%

Advanced Electric Battery Power Storage for Motors through the Use of Differential Gears and High Torque for Recirculating Power Generation

Vattanapuripakorn

Sonsupap²,

Khannam³

et al. 2022

Clean Technol.

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Electricity has become one of the most important factors contributing to both the livelihoods of individuals and global economic development. Most electricity generation is still derived from burning fossil fuels that contribute to environmental degradation. The aim of this research, through innovative design, was to create clean circular technology through the utilization of electronic devices that control and send optimally timed commands to two 72-volt batteries (DC) that store and distribute energy. This new form of electric power generation was adapted to be used with a three-way differential gear system. The speed of transmission was adjusted, and shaft rotation was connected to a 7.5 kw/h DC power motor with two 15 kw/h alternators in three phases to generate high torque power at the desired rate of 3000 RPM and electricity. The first set of alternators generated the electrical energy to be distributed. The circuit system of battery set one was used for storage and slowly fed to the motor, which was kept continuously running for hours. The second alternator distributed the generated voltage to the secondary battery, which stored backup power and provided the main power to the grid. This system is especially appealing for those looking to improve energy efficiency and contribute to the green economy, as this system can be applied to power charging stations for electric vehicles or used as a backup power source for buildings.

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Energy Management Strategies for Hybrid Loaders: Classification, Comparison and Prospect

et al. 2023

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As one of the effective and crucial ways to achieve the energy saving and emission reduction of loaders, hybrid technology has attracted the attention of many scholars and manufacturers. Selecting an appropriate energy management strategy (EMS) is essential to reduce fuel consumption and emissions for hybrid loaders (HLs). In this paper, firstly, the application status of drivetrain configuration of HLs is presented. Then, the working condition characteristics of loaders are analyzed. On the basis of this, the configurations of HLs are classified, and the features and research status of each configuration are described. Next, taking the energy consumption optimization of HLs as the object, the implementation principle and research progress of the proposed rule strategy and optimization strategy are compared and analyzed, and the differences of existing EMSs and future development challenges are summarized. Finally, combining the advantages of intelligent control and optimal control, the future prospective development direction of EMSs for HLs is considered. The conclusions of the paper can be identified in two points: firstly, although the existing EMSs can effectively optimize the energy consumption of HLs, the dependence of the strategy on the mechanism model and the vehicle parameters can reduce the applicability of the strategy to heterogeneous HLs and the robustness to a complex working condition. Secondly, combining the advantages of intelligent control and optimal control, designing an intelligent EMS not depending on the vehicle analytical model will provide a new method for solving the energy consumption optimization problem of HL.

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Loader power-split transmission system based on a planetary gear set

Cited by 3 publications

References 8 publications

Integrated Analysis of Influence of Multiple Factors on Transmission Efficiency of Loader Drive Axle

Integrated Analysis of Influence of Multiple Factors on Transmission Efficiency of Loader Drive Axle

Advanced Electric Battery Power Storage for Motors through the Use of Differential Gears and High Torque for Recirculating Power Generation

Energy Management Strategies for Hybrid Loaders: Classification, Comparison and Prospect

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