Title: A new torque ripple suppression strategy based on the CSA for PMHM of EVs under new European driving cycles

Authors: Yao Zhang; Xiaodong Sun

Addresses: Key Laboratory of Advanced Manufacture Technology for Automobile Parts (Chongqing University of Technology), Ministry of Education, Chongqing 4000054, China; Automotive Engineering Research Institute, Jiangsu University, Zhenjiang 212013, China ' Key Laboratory of Advanced Manufacture Technology for Automobile Parts (Chongqing University of Technology), Ministry of Education, Chongqing 4000054, China; Automotive Engineering Research Institute, Jiangsu University, Zhenjiang 212013, China

Abstract: This paper presents a new torque ripple suppression strategy for a permanent magnet hub motor (PMHM) of EVs drive. With the complex characteristics such as nonlinear time delay and multi-dimension presented by the PMHM, the traditional PID controller has been unable to meet the requirements of the control system. Thus, the cat swarm algorithm (CSA) is introduced to improve the accuracy of PID parameters thanks to its good global search ability. Moreover, it is found that the proposed CSA-PID in the outer loop can obtain better performance such as smaller torque ripple and faster dynamic response both in steady and dynamic state compared with the traditional PID controller. Finally, the strategy proposed in this paper was applied to the vehicle model through HIL test platform. The possibility of applying the strategy proposed to EVs was verified under the New European Driving Cycle (NEDC).

Keywords: PMHM; permanent magnet hub motor; CSA; cat swarm algorithm; torque ripple suppression; NEDC; New European Driving Cycle.

DOI: 10.1504/IJVD.2024.140418

International Journal of Vehicle Design, 2024 Vol.96 No.1, pp.42 - 60

Received: 03 May 2021
Accepted: 01 Feb 2022
Published online: 08 Aug 2024 *

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