Abstract

Our goals in developing the inverter used in the CIVIC Hybrid Integrated Motor Assist (IMA) system were to reduce size and increase power. To increase the power, a C-Cu substrate was used to increase heat diffusion, resulting in a 6% rise at maximum power current compared with the former model. Several different technologies have been employed to reduce the size of the unit: A trench structure was used in the insulated gate bipolar transistor (IGBT) gates, the thickness of the chips was reduced, the diodes were spread out, a thin film capacitor was used and the control components of the motor and structural components were integrated. These changes resulted in a reduction of 47% in volume and 25% in weight compared with the former model.

References

1. (1) Oyama, K., Kohno, Y., Sakano, J., Uruno, J., Ishizaka, K., Kawase, D., Mori, M., Hitachi Research Laboratory, Hitachi Ltd.: Novel 600-V Trench High-Conductivity IGBT (Trench HiGT) with Short-Circuit Capability
2. (2) Yusaku, N., Kosaka, H.: Development of Intelligent Power Unit for the V6 Hybrid Midsize Sedan, SAE, 2005-01-0275

Author (organization or company)

• Hiroshi OHTSUKA（Tochigi R&D Center）
• Fumio ANRAKU（Tochigi R&D Center）
• Yoshinari TSUKADA（Honda Engineering Co., Ltd.）

Publication Information

Article of Honda R&D Technical Review Vol.18 No.1 (22 - 27)

PDF

Citation Information