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Jingyun Zhang, Xiaohui Liu, Haijiang Wei, Mengnan Liu, Wenlong Huang and Xianghai Yan
When shifting gears around a tractor?s power shift transmission, it is necessary to coordinate the control of multiple clutches and formulate a reasonable clutch engagement law to ensure the reliability and power of the power system. This paper explores ...
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Seo-Jung Byeon, Seong-Jun Kim, Jin-Kam Park, Young-Jun Park and Jin-Woong Lee
Research on dual-clutch transmissions in agricultural tractors is on the rise. Dual-clutch transmissions provide a smooth driving experience and easy operation compared to manual transmissions, as they eliminate power interruptions. Accordingly, there is...
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Gyuha Han, Da-Vin Ahn, Doyeop Kwon, Heung-Sub Kim, Young-Jun Park and Jin Woong Lee
Verification of the system is essential during the development of a tractor; however, there are cost and time limitations when verification is performed on an actual tractor. To solve this problem, we developed a tractor model for real-time simulation to...
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Jiang Li, Hao Dong, Bing Han, Yanan Zhang and Zhongxiang Zhu
The shift quality is one of the most important criteria for evaluating the operation and transportation of a hydro-mechanical continuously variable transmission (HMCVT) tractor. In this study, a comprehensive shifting control strategy of a hydro-mechanic...
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Jiangming Wu, Hongzhi Yan, Shuangqi Liu, Yin Zhang and Wuzhong Tan
The modeling and simulation of gearboxes is important for analyzing the dynamic characteristics and designing control strategies of transmission systems. Variable-speed gearboxes include compound planetary gear trains and clutches, which complicates dyna...
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Qicheng Xue, Xin Zhang, Cong Geng and Teng Teng
This paper proposes a novel hybrid power system to improve the shift quality of a hybrid electric vehicle (HEV). After selecting a typical shift scheme, the study focused on the motor rotary velocity control algorithm and coordinated control strategy for...
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Wei Huang, Jianfeng Huang and Chengliang Yin
Multispeed transmissions are helpful for improvement of the economy and drivability of electric vehicles (EVs). In this paper, we propose a two-speed transmission based on dual planetary gear mechanism, in which shifts are realized by torque transfer bet...
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Wan-Soo Kim, Yong-Joo Kim, Yeon-Soo Kim, Seung-Yun Baek, Seung-Min Baek, Dae-Hyun Lee, Kyu-Chul Nam, Tae-Bum Kim and Hyo-Jai Lee
This study aims to develop and evaluate an automated manual transmission (AMT) for agricultural tractors with high efficiency and high convenience by using electric actuators. An AMT system to control manual-type shuttle gearboxes and transmissions for t...
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Baogang Li, Dongye Sun, Minghui Hu and Junlong Liu
An automatic control strategy for forward speed in the planting process is proposed to improve the fuel economy and reduce the labor intensity of drivers. Models of tractors with power-shift transmission (PST) and a precise pneumatic planter with an elec...
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