Agency for Defense Development

Korea Aerospace Research Institute

Soon Bae Chung

Tae Jin Kim

Yong Won Kim

Keun Bae Kim

Chun Taek Kim

Seok Min Ahn

Bo Hwa Lee

Poo Min Park

In Whan Seol

Chul Sung Oh

Dong Sung Kim

As a component of an aerial vehicle, a power management system having an active power control device is provided. The system includes a solar cell converting solar energy into electric energy; a fuel cell provided in the aerial vehicle and converting fuel energy into electric energy by electrochemical reaction; a battery compensating for a lack of electric power supplied from the solar cell and the fuel cell to the aerial vehicle and storing surplus electric power; and an active power control device connecting with all the solar cell, the fuel cell and the battery and combining and distributing electric power generated in the solar cell, the fuel cell and the battery to loads. The system efficiently distributes the power from the respective power sources through the controllable output of the fuel cell in accordance with power required by the aerial vehicle and the solar cell's performance depending on weather.

Electric power supply system having active power control device

A cooling system controller for a vehicle includes a radiating rate measurement unit measuring the radiating rate of a radiator, a heating rate estimation unit estimating the heating rate of a heat generating device such as an engine, transmission and brake, a heat balance comparing unit calculating a heat balance error quantity by comparing the radiating rate measured by the radiating rate measuring unit with the heating rate estimation forecasted by the heating rate estimating unit, and calculating a radiating rate follow-up value in order to achieve a heat balance with the heating rate estimate, an adaptive control unit learning state changes of the radiating device and the heat generating device and adaptively-controlling the cooling system according to the heat balance comparison by the heat balance comparing unit, and a cooling fan control unit controlling the operation of a cooling fan in order to meet the radiating rate follow-up value calculated by the heat balance comparing unit. The cooling system controller is capable of improving the cooling efficiency of the radiator by maintaining the coolant temperature as high as possible, and minimizing the required power for the cooling fan by maintaining the cooling fan speed as low as possible.

Cooling system controller for vehicle

Growing community of inventors

Daejeon, South Korea

Soon Bae Chung