Journal
IEEE-ASME TRANSACTIONS ON MECHATRONICS
Volume 27, Issue 5, Pages 3762-3772Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TMECH.2021.3130907
Keywords
Brake-by-wire (BBW); dynamic decoupling; permanent magnet synchronous motor (PMSM); recursive least square (RLS); thermodynamic model
Categories
Funding
- Automobile and Intelligent Connected Automobile Industry Innovation Project of Anhui Province [JAC2019022505]
- Postdoctoral innovative talent support program [BX20200184]
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This paper proposes a dynamic decoupling control method for PMSM in BBW system, which improves the dynamic response performance of the system by optimizing the boost time and braking time. The results show a reduction in boost time by 18.30% and braking time by 9.63%.
Brake-by-wire (BBW) system is a basic and significant component for intelligent vehicles and electric vehicles. During autonomous emergency braking process, the dynamic response requirement of the BBW actuator motor is very high. Hence, a dynamic decoupling control method is proposed for permanent magnet synchronous motor (PMSM) of BBW system to improve the dynamic response performance. First, a PMSM dynamic model and a thermodynamic model of stator winding are built. Then, the inductance and flux linkage parameters are identified based on recursive least squares and the back electromotive force formula, and an accurate relationship between inductance and flux linkage parameters and motor temperature is obtained. Finally, a dynamic decoupling control method based on the intensive binary dichotomy table method is designed. The results both of simulations and experiments show that the proposed method shorten the boost time by 18.30%, thereby reducing the braking time by 9.63%.
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