Abstract: An internal combustion vehicle cold start control system method is provided. The method includes warming alcohol and air when a door handle is actuated, while the engine is cold and starting an electric turbine connected to an intake manifold. The method also includes actuating valves allowing recirculation of the warmed air through the intake manifold and actuating spark plugs providing an initial warm-up of electrodes and engine cylinders if the temperature is less than 30° C. The starter motor is driven by 2-4 turns of a crankshaft axle so that any cold air in an air filter at the cylinders' entrance is drawn inside and is expelled by the exhaust system. A small volume of the warmed alcohol fuel is maintained in the fuel injectors. The method also includes injecting the warmed alcohol, verifying the minimum air temperature; and deactivating the system after appropriate warm-up of the engine.

Abstract: A warm-up air system to aid cold start up is provided. The system includes a turbine with electrical heaters linked to a throttle body or to an air sending tube to the throttle body forming a warmed up air circulation circuit. The system also includes valves controlled by an electronic unit.

Abstract: The present invention relates to a new auxiliary system of cold start, preferably used in the internal combustion engines that use alcohol as fuel. The engines ‘Flex Fuel’ (alcohol/gasoline/GNV) are included in the possibility of the use of this invention. The cold starting system makes use of resistances (3) positioned in the entrance of the injectors (4); resistances (6) inside of each injector (1) or one resistance (5) for every pipe holder of nozzles (2), and the three possibilities can be used simultaneously, combined two by two or separately, depending on the necessity of warm up alcohol flow and the energy consumption. It can also make use of groups of resistances (11, 12, 13) positioned in the intake. Additionally one or two auxiliary injectors can be foreseen (supplementary) in the intake collector with the same alcohol heating system.