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| Electromechanical Coupling Torsion Vibration Analysis and Control of Electric Vehicle Driveline |
| YU Peng1.2 WANG Peiqi1.2ZHANG Tong1.2.3 CHEN Shiyang1.2 GUO Rong1.2 |
1. New Clean Energy Automotive Engineering Center，Shanghai 201804
2. School of Automotive Studies of Tongji University，Shanghai 201804
3.Sino-German College of Applied Sciences, Tongji university, Shanghai 201804 |
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Abstract Targeting the electromechanical coupling torsion vibration of electric vehicle driveline, analysis and control were conducted. Firstly, current signals under steady state were obtained by the vehicle chassis dynamometer test, main harmonic current order which causes driveline torsion vibration were derived. Secondly, based on the maximum torque to current ratio control method, combined with the mechanical vibration model of driveline system, electromechanical coupling model considering mechanical and electrical interaction was built, as well as simulation analysis. Then, a harmonic current optimization method was put forward to reduce the drive system torsion vibration amplitude, the principle was expounded and the control module was constructed. Simulation results before and after the control show that the harmonic current optimization method can inhibits 5 times and 7 times harmonic current order, reduces 6 times of the basic current frequency, finally reduces the driveline torque ripple and torsion vibration amplitude at middle and high frequency spectrum.
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Received: 14 March 2016
Published: 28 August 2017
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