The Experts below are selected from a list of 21462 Experts worldwide ranked by ideXlab platform
Kyoung Kwan Ahn - One of the best experts on this subject based on the ideXlab platform.
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speed control of a hydraulic pressure Coupling Drive using an adaptive fuzzy sliding mode control
IEEE-ASME Transactions on Mechatronics, 2012Co-Authors: Kyoung Kwan AhnAbstract:In this paper, an adaptive fuzzy sliding-mode control (AFSMC) was proposed for speed control of a hydraulic pressure Coupling Drive. The AFSMC combined a direct adaptive fuzzy scheme and a fuzzy sliding scheme in a new structure to reduce the tracking error and the chattering of the control effort. The input nonlinearity of the secondary unit, the input dead zone, was taken into account during the speed controller synthesis and analysis of the stability of the closed-loop system. The stability of a system was proven from Lyapunov's sense. Experiments were performed with different controllers, the AFSMC, the traditional sliding-mode control, and the PID controllers, and under different operating conditions. Then, the experimental results were brought into comparison to evaluate the effectiveness of the AFSMC controller from the viewpoints of stability, performance, and robustness of the closed-loop system.
Lipeng Zhang - One of the best experts on this subject based on the ideXlab platform.
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parameters optimum matching of pure electric vehicle dual mode Coupling Drive system
Science China-technological Sciences, 2014Co-Authors: Lipeng Zhang, Chong Wang, Yahui Zhang, Jian SongAbstract:As an important development direction of pure electric vehicle Drive system, the distributed Drive system has the advantages of compact structure, high transmission efficiency, and flexible control, but there are some serious problems such as high performance requirements to the Drive motors, complex control strategies, and poor reliability. To solve these problems, a two motors dual-mode Coupling Drive system has been developed at first, which not only has the capacity of two-speed gear shifting, but also can automatically switch between the distributed Drive and the centralized Drive by means of modes change control. So, the performance requirements to the Drive motors can be reduced, the problem of abnormal running caused by the fault of unilateral distributed Drive systems also can be resolved by replacing the Drive mode with centralized Drive. Then, the system parameters primary and the optimum matching under the principle of efficiency optimization have been carried out, which makes the Drive system achieve predetermined functions and meet the actual demands of different operating statuses. At last, the economic comparison of a pure electric vehicle installation with a dual-mode Coupling Drive system, a single-motor centralized Drive system or a dual-motor distributed Drive system in the simulation conditions has been completed. Compared with other systems, the driving range of the electric vehicle Driven by the designed system is significantly increased, which proves the better efficiency and application value of the system.
Jian Song - One of the best experts on this subject based on the ideXlab platform.
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parameters optimum matching of pure electric vehicle dual mode Coupling Drive system
Science China-technological Sciences, 2014Co-Authors: Lipeng Zhang, Chong Wang, Yahui Zhang, Jian SongAbstract:As an important development direction of pure electric vehicle Drive system, the distributed Drive system has the advantages of compact structure, high transmission efficiency, and flexible control, but there are some serious problems such as high performance requirements to the Drive motors, complex control strategies, and poor reliability. To solve these problems, a two motors dual-mode Coupling Drive system has been developed at first, which not only has the capacity of two-speed gear shifting, but also can automatically switch between the distributed Drive and the centralized Drive by means of modes change control. So, the performance requirements to the Drive motors can be reduced, the problem of abnormal running caused by the fault of unilateral distributed Drive systems also can be resolved by replacing the Drive mode with centralized Drive. Then, the system parameters primary and the optimum matching under the principle of efficiency optimization have been carried out, which makes the Drive system achieve predetermined functions and meet the actual demands of different operating statuses. At last, the economic comparison of a pure electric vehicle installation with a dual-mode Coupling Drive system, a single-motor centralized Drive system or a dual-motor distributed Drive system in the simulation conditions has been completed. Compared with other systems, the driving range of the electric vehicle Driven by the designed system is significantly increased, which proves the better efficiency and application value of the system.
Li Yukuan - One of the best experts on this subject based on the ideXlab platform.
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power Driven automobile double motor Coupling Drive system
2014Co-Authors: Chu Liang, Wang Junnian, Zhang Yunchang, Guo Chong, Fu Zicheng, Xu Nan, Li YukuanAbstract:The invention discloses a power-Driven automobile double-motor Coupling Drive system which solves the problems that working modes are less, the device is large in size and hard to arrange and the load rate of motors is low in the prior art. According to the power-Driven automobile double-motor Coupling Drive system, a main motor and an auxiliary motor are coaxially arranged on the two sides of the system, the output shaft of the main motor is connected with a transmission gear II which is connected with a Drive disc of a clutch II. A Driven disc of the clutch II is connected with a sun wheel through a transmission shaft. The other end of the transmission shaft is connected with a Driven disc of a clutch III. A Drive disc of the clutch III is connected with the output shaft of the auxiliary motor. A transmission gear I is connected with a Drive disc of a clutch I. A Driven disc of the clutch I is connected with a transmission gear III which is externally meshed with a gear at one end of a gear ring. One end of a locking device is connected with a shell of a gearbox and the other end of the locking device is connected with the gear ring.
Chu Liang - One of the best experts on this subject based on the ideXlab platform.
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power Driven automobile double motor Coupling Drive system
2014Co-Authors: Chu Liang, Wang Junnian, Zhang Yunchang, Guo Chong, Fu Zicheng, Xu Nan, Li YukuanAbstract:The invention discloses a power-Driven automobile double-motor Coupling Drive system which solves the problems that working modes are less, the device is large in size and hard to arrange and the load rate of motors is low in the prior art. According to the power-Driven automobile double-motor Coupling Drive system, a main motor and an auxiliary motor are coaxially arranged on the two sides of the system, the output shaft of the main motor is connected with a transmission gear II which is connected with a Drive disc of a clutch II. A Driven disc of the clutch II is connected with a sun wheel through a transmission shaft. The other end of the transmission shaft is connected with a Driven disc of a clutch III. A Drive disc of the clutch III is connected with the output shaft of the auxiliary motor. A transmission gear I is connected with a Drive disc of a clutch I. A Driven disc of the clutch I is connected with a transmission gear III which is externally meshed with a gear at one end of a gear ring. One end of a locking device is connected with a shell of a gearbox and the other end of the locking device is connected with the gear ring.
