基于电动汽车半轴特性的电液复合制动协调控制方法

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Abstract In electric vehicles equipped with axle motors,properties of half-shafts affect the dynamic response of the transmission system to motor torque and it's difficult to control wheel slip ratio accurately by motor torque during the emergency braking process.In this paper,the powertrain model was built and its response to regenerative braking torque in the frequency domain was analyzed.Half-shaft torque was estimated through the Extended-Kalman-Filter and then two control strategies of blended braking in the emergency braking process including hydraulic braking torque dynamic control and half-shaft torque compensation control were proposed.Simulation and test-bench experiment results show that harmful effects of half-shaft properties to the electric drive are eliminated and blended braking control accuracy of the vehicle as well as the braking performance is significantly enhanced by the newly proposed control strategies.

Key words： Electric drive half-shaft properties regenerative braking electric vehicle cooperative control

Received: 18 February 2016 Published: 20 June 2017

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TM921

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	Zhang Zhongshi
	Wang Lifang
	Zhang Junzhi

Cite this article:

Zhang Zhongshi,Wang Lifang,Zhang Junzhi. The Effect of Half-Shaft Properties on Regenerative and Hydraulic Blended Braking Control for Electric Vehicles[J]. Transactions of China Electrotechnical Society, 2017, 32(11): 189-197.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2017/V32/I11/189

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