An investigation of energy efficiency of a wheel loader with automated manual transmission

This paper describes an investigation of energy efficiency by applying an advanced powertrain system in a conventional wheel loader. A conventional powertrain of a wheel loader consists of an engine, torque converter and transmission. A torque converter in a conventional system generally causes a si...

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Bibliographic Details
Published in:Journal of mechanical science and technology 2016, 30(7), , pp.2933-2940
Main Authors: Oh, Kwangseok, Yun, Seungjae, Ko, Kyungeun, Kim, Panyoung, Seo, Jaho, Yi, Kyongsu
Format: Article
Language:English
Subjects:
Automation
Clutches
Computer simulation
Construction equipment
Control
Control theory
Controllers
Converters
Dynamical Systems
Energy conversion efficiency
Energy efficiency
Energy flow
Energy transmission
Engineering
Engines
Industrial and Production Engineering
Loaders
Mechanical Engineering
Powertrain
Powertrains
Product design
Simulation
Speed control
Torque
Torque converters
Vibration
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Summary:This paper describes an investigation of energy efficiency by applying an advanced powertrain system in a conventional wheel loader. A conventional powertrain of a wheel loader consists of an engine, torque converter and transmission. A torque converter in a conventional system generally causes a significant amount of energy loss, as determined by analyzing energy flow based on V-pattern working. To prevent energy loss in a torque converter, Automated manual transmission (AMT) was proposed and modeled in this paper as an advanced powertrain. A wheel loader based on AMT does not need to use a torque converter since the single clutch system is used between the engine and transmission with subsystems of engine controller, clutch actuator and controller. A simplified single clutch system and controller were constructed for V-pattern working of a wheel loader. Additionally, a PI-controller was used as a control algorithm for engine speed control to prevent energy loss while the clutch is not engaged. All simulation models have been constructed in the Matlab/ Simulink environment, and simulation studies were conducted by using a simulation model of a wheel loader with a driver model based on V-pattern working. Simulation results of the AMT-based wheel loader were analyzed by comparison with the results of the torque converter-based wheel loader, and the results show that the AMT-based wheel loader is more energy efficient than the conventional wheel loader.
ISSN:1738-494X
1976-3824
DOI:10.1007/s12206-016-0602-y