Zobrazeno 1 - 10
of 83
pro vyhledávání: '"Changsun Ahn"'
Autor:
Wansik Choi, Changsun Ahn
Publikováno v:
IEEE Access, Vol 11, Pp 137274-137284 (2023)
The efficiency of the thermal management system of electric vehicles is important because the thermal management system requires a significant amount of electric energy. Therefore, controllers of the thermal management system should be designed consi
Externí odkaz:
https://doaj.org/article/f8299d637b2f410a825a7141d3164d33
Publikováno v:
IEEE Access, Vol 9, Pp 18061-18071 (2021)
GPS signals are not reliable in urban canyons or inside tunnels. In those situations, accurate local positioning is possible through local landmarks. This paper presents the potential accuracy of such a landmark-based local positioning system and the
Externí odkaz:
https://doaj.org/article/d189170c57bc465ba745e85b4b80d4b6
Autor:
Juhui Gim, Changsun Ahn
Publikováno v:
IEEE Access, Vol 9, Pp 132766-132778 (2021)
This paper proposes an inertial sensor-based positioning method without using dead reckoning. The basic concept estimates the current position based on a pre-indexed map composed of spectrograms of road shapes estimated using inertial sensor signals.
Externí odkaz:
https://doaj.org/article/f30f06c09e474e2484798e3ffce43086
Autor:
Junyoung Kim, Changsun Ahn
Publikováno v:
IEEE Access, Vol 7, Pp 87866-87872 (2019)
Intelligent use of batteries in hybrid electric vehicles (HEV) is the main factor for high-fuel economy. For a cruising HEV, the state-of-charge Pulse and Glide (SOC-PnG) is known to be the optimal charging-discharging pattern. The optimal charging-d
Externí odkaz:
https://doaj.org/article/169a75c83e9644639098d98f2cfd777e
Publikováno v:
Energies, Vol 15, Iss 6, p 2131 (2022)
Fuel cell vehicles (FCVs) should control the energy management between two energy sources for fuel economy, using the stored energy in a battery or generation of energy through a fuel cell system. The fuel economy for an FCV includes trip costs for h
Externí odkaz:
https://doaj.org/article/359013dfeda44adb8f3fc3a574276a36
Publikováno v:
Sensors, Vol 21, Iss 22, p 7769 (2021)
Road surface detection is important for safely driving autonomous vehicles. This is because the knowledge of road surface conditions, in particular, dry, wet, and snowy surfaces, should be considered for driving control of autonomous vehicles. With t
Externí odkaz:
https://doaj.org/article/b1c8cdc690cc469b98d06b08fed5b90c
Publikováno v:
Energies, Vol 14, Iss 13, p 3810 (2021)
The design of an energy management strategy is critical to improving the fuel efficiency of a vehicle system with an alternative powertrain system, such as hybrid electric vehicles or fuel cell electric vehicles. In particular, in fuel cell electric
Externí odkaz:
https://doaj.org/article/9cd9a9912cee4746a744a847b7fdc42a
Publikováno v:
Sensors, Vol 20, Iss 24, p 7081 (2020)
The capacitance and rotor angle of a MEMS top-drive electrostatic rotary actuator do not have a linear relationship due to the non-ignorable fringe effect and low aspect ratio of the electrodes. Therefore, the position estimation is not as straightfo
Externí odkaz:
https://doaj.org/article/72cd2338b5414159aa7f8fc681575cb1
Autor:
Changsun Ahn, Huei Peng
Publikováno v:
Energies, Vol 6, Iss 12, Pp 6439-6454 (2013)
Microgrids can deploy traditional and/or renewable power sources to support remote sites. Utilizing renewable power sources requires more complicated control strategies to achieve acceptable power quality and maintain grid stability. In this research
Externí odkaz:
https://doaj.org/article/307deb18f7a6450980a2cd25aed920c5
Autor:
Juhui Gim, Changsun Ahn
Publikováno v:
Sensors, Vol 18, Iss 10, p 3344 (2018)
A road profile can be a good reference feature for vehicle localization when a Global Positioning System signal is unavailable. However, cost effective and compact devices measuring road profiles are not available for production vehicles. This paper
Externí odkaz:
https://doaj.org/article/ccf75804cbcb4c4891dc51098aef7fa0