Investigation and Implementation of Pulse-Electro Thermal De-Icing in Automotive Applications

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Transparent Windshields for various vehicles, such as cars, rail vehicles including trains, streetcars, and locomotives,**snowmobiles, airplanes, helicopters and sea vessels, must be deiced or defrosted using available on-board power. Typically,**deicing and defrosting are accomplished by blowing air heated by the vehicle's engine onto the windshield. However, especially**since the engine is initially cold upon startup, deicing/defrosting takes a considerable amount of time with unnecessary emission of**greenhouse gases to the environment. Pulse-electro thermal deicing (PETD) is a technology that can solve this problem. It uses a**high density of heating power (W/m2) using proprietary pulse and frequency, which allows for rapid and energy-efficient deicing.**The pulse and frequency are calibrated based on a number of factors such as temperature, type of ice growth, etc., and melt a thin**interfacial layer (~50 microns) of ice rapidly and energy efficiently. This detaches the ice, without having to expend the time and**energy to melt all the ice. It is the purpose of this project to develop, test and validate the use of PETD technology for automotive**windshield defrosting/deicing. The successful validation of this technology in the above mentioned applications will have**tremendous effect on energy saving as well as the reduction of greenhouse gas emission to the environment.**.**Ontario