The measures to improve the low temperature cold start performance of the power system mainly include the following aspects: diesel, antifreeze and diesel oil must be selected to meet the needs of low temperature environment. When the ambient temperature is lower than -30, the diesel should be -50 diesel, and the antifreeze should be FD. -2 type long-acting antifreeze, diesel oil use SAE0W/40 type CG or above grade lubricating oil. The engine is equipped with a low temperature cold start system. This system can automatically preheat the intake air according to the change of the external temperature. During the preheating process, the preheating is always on. After the preheating is completed, the preheating light goes out, and the engine can be started. Add this set The system can ensure that the engine starts smoothly when the ambient temperature is higher than -32. The diesel generator set adopts an AC/DC water jacket water heating system. When the outside world can provide 220V AC power, the antifreeze liquid of the diesel generator set is heated by the external power supply. When the temperature of the antifreeze liquid is higher than the heating indication signal, the diesel generator set is started. . When the outside world cannot provide 220V AC power supply, the antifreeze of the diesel generator set is heated by the built-in battery of the snow plow (starting battery configured for the two engines) through the inverter, and the diesel generator set is started after the heating indicator light sends a signal. .