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Zhang Liwei
Beijing Jiaotong University

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Summarize of Electric Vehicle Electric System Fault and Fault-tolerant Technology Zhang Liwei; Huang Xianjin; Yang Yannan; Xu Chen; Liu Jie
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 2: February 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

Electric vehicle drive system is a multi-variable function, running environment complexed and changeable system, so it’s failure form is complicated. In this paper, according to the fault happens in different position, establish vehicle fault table, analyze the consequences of failure may cause and the causes of failure. Combined with hardware limitations, and the maximum guarantee system performance requirements, passive software redundancy fault-tolerant strategy is put forward, give an example to analysis the pros and cons of this method. DOI : http://dx.doi.org/10.11591/telkomnika.v12i2.4410
DC Power System of Electric Vehicle Zhang Liwei; Wang Xiao; Zhang Yujin
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 11: November 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

In recent years, environmental and energy problem has become one of the world's hot spot problems. Today, the road cars not only consume a lot of oil resource, but also cause serious pollution to human survival environment. Therefore, to save energy and protect environment, a green environmental friendly electric car instead of fuel car will be needed for sustainable development of the society. Electric vehicle has no pollution, low noise, high efficiency, diversification, simple structure and convenient maintaining; the development of green cleaning electric vehicle is the trend, and the inevitable choice. The power supply system of electric vehicle can be divided into three parts, the battery charging system, motor drive system and dc load power supply system. This paper mainly studies the dc load power supply system. Main function is to convert the high-voltage of the battery in the electric vehicle into low voltage output, provide the power supply for the low voltage dc load, including the car safety system, windshield wiper system, audio system. On the basis of the analysis of the parameters, this article designs the converter, sets up the principle prototype, analyzes the experimental results and finally makes conclusion. The vehicle power supply is green, environment friendly, high-efficiency, digital and intelligent.  DOI: http://dx.doi.org/10.11591/telkomnika.v11i11.3511
Fault-tolerant for Electric Vehicles Drive System Sensor Failure Zhang Liwei; Xu Chen; Liu Jie; Wu Jialong
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 10: October 2013
Publisher : Institute of Advanced Engineering and Science

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When EV failure happens, it needs to take some fault-tolerant method to ensure people’s safety. When the current sensor and speed sensor are out of work, the software fault-tolerant control algorithm switching strategy can be used. This paper has done theoretical analysis of the rotor field-oriented vectoe control algorithm into the open loop constant V/F control algorithm, and the phase angle compensation method is used to reduce the shock of current and torque, and simulation is done in MATLAB/Simulink.  DOI: http://dx.doi.org/10.11591/telkomnika.v11i10.3426
Co-Authors Huang Xianjin Liu Jie Liu Jie Wang Xiao Wu Jialong Xu Chen Xu Chen Yang Yannan Zhang Yujin