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Development of Motor and PCU for a SPORT HYBRID i-MMD System

Article of Honda R&D Technical Review Vol.25 No.2

Summary

A highly efficient SPORT HYBRID Intelligent Multi-Mode Drive system was developed in order to achieve a balance between the joy of driving and measures to address climate change and energy issues. The developed power train is composed of the engine, an electric coupled CVT with a built-in motor and generator, a Power Control Unit, and an Integrated Power Unit. The built-in motor was given higher torque, higher output, and higher efficiency by using reluctance torque and raising the voltage. The Power Control Unit was made more compact and power was increased by enhancing the unit’s heat dissipation performance, and it was made more efficient by using a low-loss chip. As a result, the motor achieves maximum torque of 307 Nm and maximum output of 124 kW, while the Power Control Unit achieves a voltage increase of 700 V and total output of 400 kVA. The Power Control Unit including the motor achieved a maximum efficiency of 96%.

Reference

(1) Hotrie, T., Kishi, T., Hasegawa, O.: Development of IMA System for New CIVIC Hybrid, Honda R&D Technical Review, Vol. 18, No. 1, p. 16-21
(2) Matsunaga, M., Fukushima, T., Ojima, K., Kimura, K., Ogawa, T.: Fuel Cell Powertrain for FCX Clarity, Honda R&D Technical Review, Vol. 21, No. 1, p. 7-15
(3) Ide, H., Sunaga, Y., Higuchi, N.: Development of SPORT HYBRID i-MMD Control System for 2014 Model Year Accord, Honda R&D Technical Review, Vol. 25, No. 2, p. 33-41
(4) Morimoto, S., Ueno, T., Takeda, Y.: Wide Speed Control of Interior Permanent Magnet Synchronous Motor, T. IEE, Vol.114-D, No. 6, p. 668-673 (1994)
(5) Onozawa, Y., Nakano, H., Otsuki, M., Yoshikawa, K., Miyasaka, T., Seki, T.:Development of the next generation 1200V trench-gate FS-IGBT featuring lower EMI noise and lower switching loss, in Proc. 19th ISPSD, p.13-16 (2007)

Author (organization or company)

Jiro KUROKI(Automobile R&D Center)、Hiroshi OHTSUKA(Automobile R&D Center)

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