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2. Simulation and intelligent cooperation control strategy of double-pump hydraulic system for automatic transmissions

Author

Gu Jie, Liu Yang, Wei Shuo, Li Hongbiao, Wen Boxuan, and Xuelei Wu

Subjects
0209 industrial biotechnology, Automatic transmission, Computer science, ComputerApplications_COMPUTERSINOTHERSYSTEMS, 02 engineering and technology, Automotive engineering, law.invention, Vehicle dynamics, Oil pump, 020303 mechanical engineering & transports, 020901 industrial engineering & automation, 0203 mechanical engineering, Transmission (telecommunications), law, Hardware_INTEGRATEDCIRCUITS, Hydraulic machinery, Hybrid vehicle, Intelligent control, Energy (signal processing)
Abstract

Double-pump(mechanical driven oil pump and electric driven oil pump) hydraulic system is a new solution for state of art automatic transmission(AT) to satisfy hybrid vehicle functions and also improving system efficiency. In this paper, the vehicle dynamics model was built, then a mathematical model of transmission cooling and leakage flow was built. Based on the cooling and leakage flow requirements, intelligent cooperation control strategy of the double-pump hydraulic system was then developed aiming at energy saving. Driving simulation in various typical driving cycles indicated that the double-pump hydraulic system with optimized control strategy can get 2.4% fuel economy improvement in comparison to the conventional one pump hydraulic system. The findings in this paper have a certain value in intelligent control theory study and engineering application.

Published
2017

6. The research of scientific workflow engine

Author

Yu Wanjun, Li Hongbiao, and Li Feng

Subjects
Computer science, business.industry, Windows Workflow Foundation, InformationSystems_INFORMATIONSYSTEMSAPPLICATIONS, computer.software_genre, Workflow model, Workflow engine, Workflow technology, XPDL, World Wide Web, Workflow, Grid computing, Software engineering, business, computer, Workflow Management Coalition, Workflow management system
Abstract

This article described the concepts of workflow, scientific workflow and three open-source scientific workflow engine, illustrated on how to establish and modify scientific workflow model. And analyzed the implementation of a scientific workflow process.

Published
2010

7. Prediction of mine gas emission rate based on the SVM model

Author

Zhang Yunsheng, Wang Jianping, Li Hongbiao, and Huang Hongxia

Subjects
Engineering, business.industry, Astrophysics::High Energy Astrophysical Phenomena, computer.software_genre, Machine learning, Electronic mail, Support vector machine, Nonlinear system, Forecasting theory, Data mining, Artificial intelligence, business, computer, Astrophysics::Galaxy Astrophysics
Abstract

In allusion to the actuality that the samples of influence factors on gas emission rate are few now, this paper gives out a predicting method for mine gas emission based on support vector machine (SVM) theory, building a SVM model of mine gas emission from nonlinear forecasting. Comparing to the other forecasting methods, the result shows that this model has more precision.

Published
2008

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