Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Hyun-Rok Cha"'
Publikováno v:
IEEE Access, Vol 10, Pp 123746-123756 (2022)
This study proposes an instant orientation correction strategy to perform an orientation alignment-based formation control applicable to nonholonomic agents. Generally, an orientation alignment-based formation control cannot be applied to nonholonomi
Externí odkaz:
https://doaj.org/article/57c261a0cfc4442f9849555748f8a739
Publikováno v:
IEEE Access, Vol 9, Pp 99731-99741 (2021)
In this paper, output power distribution algorithm is proposed for the front- and rear-motors through the power distribution system of four-wheel-drive (4WD) electric vehicles. Through the power distribution system, optimal control of the power distr
Externí odkaz:
https://doaj.org/article/ce41b88582b24ed688b8cc45475dcaaa
Publikováno v:
IEEE Access, Vol 8, Pp 48774-48783 (2020)
The interest in electric-powered transportation has been increased because of problems such as depletion of fossil fuel resources and environmental issues caused by internal combustion engines. The market for various kinds of small E-mobility devices
Externí odkaz:
https://doaj.org/article/92daf905ac874efc94d55d36faa8f53e
Autor:
Hyeon-Woo Kim, Angani Amarnathvarma, Eugene Kim, Myeong-Hwan Hwang, Kyoungmin Kim, Hyunwoo Kim, Iksu Choi, Hyun-Rok Cha
Publikováno v:
Energies, Vol 15, Iss 8, p 2717 (2022)
The market for electric vehicles is growing rapidly. Among them, the demand for a dual motor type 4 WD (Four -Wheel Driving) system is increasing. In this paper, we present the Torque Matching Strategy (TMS) method to select the optimal torque distri
Externí odkaz:
https://doaj.org/article/f4b1bae9d9e442b191494667645458a5
Autor:
Hyeon-Woo Kim, Hyun-Rok Cha
Publikováno v:
Applied Sciences, Vol 11, Iss 14, p 6465 (2021)
Vehicle stability is a critical problem, especially for compact electric vehicle (EV) trucks, owing to the impact of the cargo weight and cornering characteristics. In this study, this problem was approached by mathematically formulating the change i
Externí odkaz:
https://doaj.org/article/b416affbfd624c089fc9f0c5bb102818
Publikováno v:
Applied Sciences, Vol 11, Iss 11, p 4856 (2021)
As unmanned aerial vehicles expand their utilization and coverage, research is in progress to develop low-weight and high-performance motors to efficiently carry out various missions. An electromagnetic field interior permanent magnet (IPM) motor was
Externí odkaz:
https://doaj.org/article/58f15aa48c0040699a299528bb10af89
Publikováno v:
Applied Sciences, Vol 11, Iss 2, p 727 (2021)
In recent years, photovoltaic (PV) power generation has attracted considerable attention as a new eco-friendly and renewable energy generation technology. With the recent development of semiconductor manufacturing technologies, PV power generation is
Externí odkaz:
https://doaj.org/article/473f899d76204839b213ca1ef90b02b5
Autor:
Myeong-Hwan Hwang, Hae-Sol Lee, Se-Hyeon Yang, Gye-Seong Lee, Jong-Ho Han, Dong-Hyun Kim, Hyeon-Woo Kim, Hyun-Rok Cha
Publikováno v:
Energies, Vol 12, Iss 9, p 1761 (2019)
Recently, various methods have been proposed to increase the output power density of a driving motor applied to an electric vehicle. One such method is to design a structure with two motor rotors. High output density can be obtained by applying the d
Externí odkaz:
https://doaj.org/article/e4894a72b79b44829a87a4e848db0f0d
Publikováno v:
Materials, Vol 12, Iss 5, p 824 (2019)
In this paper, the densification mechanism of ultrasonic compaction was analyzed using a force balance model. Ultrasonic compaction is quite a promising way to solve the lower mechanical property problem of green compact in the compaction process, al
Externí odkaz:
https://doaj.org/article/1dbef4f883ff4f6789dd735b91da19a6
Publikováno v:
Energies, Vol 12, Iss 5, p 845 (2019)
In this study, a method to determine the optimal generator operating point is proposed to enhance the utilization of power resources in a range-extended electric vehicle (Re-EV). Currently, the Re-EV is being developed as one of the solutions to the
Externí odkaz:
https://doaj.org/article/8f31793ac1964141b2467f5065a5cc50