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Auxiliary Power Supply System for Electric Power Steering (EPS) and High-Heat-Resistant Lithium-Ion Capacitor

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Power Storage Device Dev. Group, BR Electrical Power Storage Device Business Dept., JTEKT Corporation 1-7 Kitajizouyama, Noda-cho, Kariya, Aichi 448-0803, Japan
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Power Supply System Dev. Group, BR Electrical Power Storage Device Business Dept., JTEKT Corporation 1-7 Kitajizouyama, Noda-cho, Kariya, Aichi 448-0803, Japan
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Authors to whom correspondence should be addressed.
Presented at EVS 31 & EVTeC 2018, Kobe, Japan, 1–3 October 2018
World Electr. Veh. J. 2019, 10(2), 27; https://doi.org/10.3390/wevj10020027
Received: 19 April 2019 / Revised: 15 May 2019 / Accepted: 18 May 2019 / Published: 22 May 2019
Advanced Driver Assistance System (ADAS) and Automated Driving (AD) are the two major topics for the current and next generations of vehicles. To realize them in full-size vehicles equipped with a 12 V power supply, the need for electric power steering (EPS) is increasing. Currently, the steering system of full-size vehicles is equipped with hydraulic power steering due to electric power shortage. An auxiliary power supply system using a lithium-ion capacitor was developed in order to solve the concern. In addition, to mount the system in the vehicle with no cooling–heating equipment, development of expanding the operating temperature range of the lithium-ion capacitor was conducted. Several improvements have made the capacitor operate stably in high-temperature environments above 100 °C. View Full-Text
Keywords: electric power steering; temporary power boost; redundant power supply; lithium-ion capacitor electric power steering; temporary power boost; redundant power supply; lithium-ion capacitor
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Mio, T.; Komatsubara, Y.; Ohmi, N.; Kimoto, Y.; Iizuka, K.; Suganuma, T.; Maruyama, S.; Sugiyama, T.; Sato, F.; Shinoda, S.; Hibino, T.; Nishi, K. Auxiliary Power Supply System for Electric Power Steering (EPS) and High-Heat-Resistant Lithium-Ion Capacitor. World Electr. Veh. J. 2019, 10, 27.

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