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Development of IPU for SPORT HYBRID i-DCD

Article of Honda R&D Technical Review Vol.26 No.1

Summary

An Intelligent Power Unit for the 2014 model year FIT SPORT HYBRID i-DCD was developed.
The total height of the Intelligent Power Unit was reduced by the flat installation of its component battery and Power Control Unit, while achieving miniaturization and reduced weight by modifying the frame and cooling duct structure.
By adopting a high-power, large-capacity, lithiumion battery developed for the SPORT HYBRID, an energy performance 1.5 times greater than that of the conventional model was achieved. In addition, by reducing the volume of the Intelligent Power Unit 23% compared to that of the conventional model, energy density was increased by a factor of two.
Reducing the total height of the Intelligent Power Unit allowed it to be installed in both 2WD and 4WD, which have limited spare tire well volume, minimizing cargo room height and ensuring a sufficient cargo volume for practical use.

Reference

(1) Ochiai, S., Uchibori, K., Hara, K., Tsurumi, T., Suzuki, M.: Development of a Motor Assist System for a Hybrid Car – INSIGHT, HONDA R&D Technical Review, Vol. 12, No. 1, p. 7-14
(2) Ohnuma, Y., Takahashi, K., Matsuda, T.: Development of Li-ion Battery for SPORT HYBRID, Honda R&D Technical Review, Vol. 25, No. 2, p. 49-53

Author (organization or company)

Norihisa KOBAYASHI(Automobile R&D Center)、Iori KANAMORI(Automobile R&D Center)

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