Auto-Test on Motor Temperature Rising in Electric Vehicles with Mutual MRAS |
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Authors: | WANG Zhi-fu and ZHANG Cheng-ning |
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Affiliation: | School of Mechanical and Vehicular Engineering, Beijing Institute of Technology, Bering 100081, China;School of Mechanical and Vehicular Engineering, Beijing Institute of Technology, Bering 100081, China |
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Abstract: | A new method to calculate the motor temperature rising in electric vehicle (EV) is proposed based on the stator resistance identification. The measure theory of the motor temperature rising with the stator resistance is discussed at first. An enhanced magnetism motor dynamic math model is built which is the research object. Then the resistance identification system model is built on the mutual model reference adaptive system (MRAS) theory. The simulation diagram of the mutual MRAS model is constructed and the resistance identification performance is studied in different motor states. Simulation results indicate that the stator resistance identification model with the mutual MRAS is effective. At the same time,the identification of motor temperature rising is possible with the identification of the stator resistance. |
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Keywords: | electric vehicle (EV) motor's temperature rising model reference adaptive system (MARS) resistance identification |
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