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ICE cold start / ICE start in winter from ultracapacitorsIn cold and very cold climatic regions, for most of the calendar year, the problem of starting an internal combustion engine (ICE) at a temperature below 0 ° is relevant. Already at a temperature of only –5 ° degrees, a fully charged battery loses about 20% of its charge. In addition, its internal resistance increases. At the time of starting the engine, a large discharge current flows through the battery, which at low temperatures leads to warpage of the plates, loss of active mass and shortened battery life. The temperature dependence of the internal resistance is shown in Fig. 2. At -50 ° it increases by 3 times, but the absolute value at the same time remains small. For example, a typical MSK at 25 ° has a resistance of 2 • 10-3 Ω. Accordingly, at -50 ° it will be 6 • 10-3 Ω. The MSK ultracapacitor is charged through the built-in DC / DC converter. Then there is a full charge of the MSC ultracapacitor to the rated voltage required to start the internal combustion engine with currents of 10...20 A Exactly what provides a smooth warming up of the battery at the same time. The energy stored in the ultracapacitor is enough for three attempts to start the ICE, prepared in accordance with the regulations of the manufacturer. The charge time of the supercapacitor depends on the state of the battery and the ambient temperature.
Tests of the MSKP-390-14 ultracapacitor showed that it provides confident cranking of the ICE crankshaft of the UAZ-3151 car with the UMZ-417 engine at -18 ° air temperature and 0 ° coolant temperature for 18 seconds. At an air temperature of -24 °, a coolant temperature of -23 °, after overnight storage for 15 hours and frozen oil - up to 12 seconds. This is enough to start a working ICE and confirms the effectiveness of the supercapacitor. |
8-1-11, Tvardovskogo str., Moscow, Russia
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