| Budget Amount *help |
¥43,550,000 (Direct Cost: ¥33,500,000、Indirect Cost: ¥10,050,000)
Fiscal Year 2021: ¥9,880,000 (Direct Cost: ¥7,600,000、Indirect Cost: ¥2,280,000)
Fiscal Year 2020: ¥12,740,000 (Direct Cost: ¥9,800,000、Indirect Cost: ¥2,940,000)
Fiscal Year 2019: ¥13,390,000 (Direct Cost: ¥10,300,000、Indirect Cost: ¥3,090,000)
Fiscal Year 2018: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
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| Outline of Final Research Achievements |
In 2017, before the start of this research project, the Principal Investigators succeeded in developing the world's first second-generation wireless in-wheel motor (WIWM2) that enabled in-motion wireless power transfer to EVs. In this research, the transmission power of the WIWM2 was more than doubled, and fundamental research was conducted to fit all the components inside the wheel, except for the power receiving coil, which was outside the wheel.
In addition, academic research was conducted on the next-generation WIWM that uses a special tire and wheel structure to directly transfer power to the IWM by mounting the power-receiving coil inside the wheel. In addition, we succeeded in basic research on a method of configuring a magnetic circuit in the tire and a method of arranging repeater coils to realize this configuration in a general wheel.
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