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Self powered vehicle roof for on-board comfort and energy saving (SMARTOP)
Start date: Nov 1, 2010, End date: Oct 31, 2013 PROJECT  FINISHED 

"The electrical loads of present automobiles are related to multimedia, heating, ventilation, and air conditioning (HVAC), body electronics (power windows and heated backlight) and lighting (exterior and interior) and their consumption is above 3 kW. A conventional vehicle with internal combustion engine uses part of the mechanical power (about 5 kW) to drive the mentioned on-board equipments through the alternator considering its efficiency of approximately 60%; regarding cabin heating, engine waste heat assures the cabin thermal comfort that requires 5-10 kW, while a mechanically driven vapour compression cycle guarantees the cabin cooling in summer, absorbing up to 3 kW electric and generating up to 5 kW of cooling power.On a FEV electrical auxiliaries are supplied by the batteries pack resulting in increased mass installed to guarantee reasonable covered ranges from 50 to 100 km; the power consumption of any kind of auxiliary contributes to reduce this range and to decrease the battery lifetime; moreover the amount of heat available for cabin heating is very small (less than 5 kW) and the energy available to supply an air conditioning system is far low than normally required by a conventional one.The concept addressed by SMARTOP is to develop an autonomous smart roof integrating solar cells (PV), energy storage systems and auxiliaries as thermoelectric (TE) climatic control, electrochromic (EC) glazing, courtesy LEDs lighting and actuators able to increase comfort and fuel economy for both fully electrical (FEV) and internal combustion engine (ICE) vehicles. SMARTOP addresses the needs of vehicle electrification integrating on board power hungry devices and matching the comfort and safety customer expectations."

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