Design of digital load torque observer in hybrid electric vehicle

Yukun Sun; Haoming Zhang; Yinghai Wang

doi:10.1117/12.819610

31 December 2008 Design of digital load torque observer in hybrid electric vehicle

Yukun Sun, Haoming Zhang, Yinghai Wang

Proceedings Volume 7130, Fourth International Symposium on Precision Mechanical Measurements; 71301Z (2008) https://doi.org/10.1117/12.819610
Event: Fourth International Symposium on Precision Mechanical Measurements, 2008, Anhui, China

Abstract

In hybrid electric vehicle, engine begain to work only when motor was in high speed in order to decrease tail gas emission. However, permanent magnet motor was sensitive to its load, adding engine to the system always made its speed drop sharply, which caused engine to work in low efficiency again and produced much more environment pollution. Dynamic load torque model of permanent magnet synchronous motor is established on the basic of motor mechanical equation and permanent magnet synchronous motor vector control theory, Full- digital load torque observer and compensation control system is made based on TMS320F2407A. Experiment results prove load torque observer and compensation control system can detect and compensate torque disturbing effectively, which can solve load torque disturbing and decrease gas pollution of hybrid electric vehicle.

Citation Download Citation

Yukun Sun, Haoming Zhang, and Yinghai Wang "Design of digital load torque observer in hybrid electric vehicle", Proc. SPIE 7130, Fourth International Symposium on Precision Mechanical Measurements, 71301Z (31 December 2008); https://doi.org/10.1117/12.819610

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