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Vol. 160, Issue 12, December 2013, pp. 99-105

 

Bullet

 

Electric Drive System Speed Sensor Fault-Tolerant Control of Electric Vehicle
 
1 ZHANG Liwei, 1 YANG Yannan, 1 HUANG Xianjin, 2 Liu Jie

1 School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China

2 State Key Laboratory of Automotive Simulation and Control, Jilin University, Jilin 130022, China

 

Received: 18 September 2013   /Accepted: 22 November 2013   /Published: 30 December 2013

Digital Sensors and Sensor Sysstems

 

Abstract: In this paper, for the speed sensor of the electric vehicle electric drive system prone to damage, a new Fault-Tolerant control is researched. This damage will cause the car run failure or even dangerous situations. This control algorithm combined the traditional vector control system with speed sensor with a speed sensorless vector control algorithms. And the algorithm has the advantages of simple implementation and flux estimation accuracy. This paper proposes a practical method of fault detection and analyzes the process of the two control algorithms and realizes the smooth transition between the two control algorithms when the speed sensor failure. Finally, the simulation analysis and experiment result prove the validity.

 

Keywords: Electric vehicle (EV), Induction motor, Fault-tolerant control (FTC), Sensorless.

 

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