Robust State of Charge Estimation for Hybrid Electric Vehicles: Framework and Algorithms

	Robust State of Charge Estimation for Hybrid Electric Vehicles: Framework and Algorithms
	Jingyu Yan; Guoqing Xu; Huihuan Qian; Yangsheng Xu
刊名	ENERGIES
	2010
卷号	3 期号:10 页码:1654-1672
英文摘要	State of Charge (SoC) estimation is one of the most significant and difficult techniques to promote the commercialization of electric vehicles (EVs). Suffering from various interference in vehicle driving environment and model uncertainties due to the strong time-variant property and inconsistency of batteries, the existing typical SoC estimators such as coulomb counting and extended Kalman filter cannot perform their theoretically optimal efficacy in practical applications. Aiming at enhancing the robustness of SoC estimation and improving accuracy under the real driving conditions with noises and uncertainties, this paper proposes a framework consisting of (1) an adaptive-kappa nonlinear diffusion filter to reduce the noise in current measurement, (2) a self-learning strategy to estimate and remove the zero-drift, (3) a coulomb counting algorithm to realize open-loop SoC estimation, (4) an H(infinity) filter to implement closed-loop robust estimation, and (5) a data fusion unite to achieve the final estimation by integrating the advantages of the two SoC estimators. The availability and efficacy of each component have been demonstrated based on comparative studies in simulation with the conventional approaches respectively, under the testing conditions of noises with various signal-noise-ratios, varying zero-drifts, and different model errors. The overall framework has also been verified to rationally and efficiently combine these components and achieve robust estimation results in the presence of kinds of noises and uncertainties
收录类别	SCI
原文出处	http://www.mdpi.com/1996-1073/3/10/1654/
语种	英语
内容类型	期刊论文
源URL	[http://ir.siat.ac.cn:8080/handle/172644/2707]
专题	深圳先进技术研究院_集成所
作者单位	ENERGIES
推荐引用方式 GB/T 7714	Jingyu Yan,Guoqing Xu,Huihuan Qian,et al. Robust State of Charge Estimation for Hybrid Electric Vehicles: Framework and Algorithms[J]. ENERGIES,2010,3(10):1654-1672.
APA	Jingyu Yan,Guoqing Xu,Huihuan Qian,&Yangsheng Xu.(2010).Robust State of Charge Estimation for Hybrid Electric Vehicles: Framework and Algorithms.ENERGIES,3(10),1654-1672.
MLA	Jingyu Yan,et al."Robust State of Charge Estimation for Hybrid Electric Vehicles: Framework and Algorithms".ENERGIES 3.10(2010):1654-1672.