The exhaust pollution of motor vehicles is also a serious problem. Emissions of harmful substances such as nitrogen oxides, carbon monoxide, unburned hydrocarbons and particulate emissions have a serious impact on the quality of the atmosphere. At the same time, the atmospheric greenhouse effect of carbon dioxide will increase the temperature of the earth's climate, melt the polar glaciers, raise the sea level and cause flood disasters and other serious natural disasters, and even trigger a global environmental disaster. Compared with automobiles, mining motor vehicles have more of their own characteristics, making the above two issues more prominent. The first is the use of complex conditions, the need to frequently change operating conditions, and the vehicle is stopped, the engine idle time is long, so that the mileage of the vehicle driving unit mileage increases, carbon monoxide and hydrocarbon emissions increase. Followed by bad road conditions, it is necessary to go uphill and downhill frequently, and it is required to increase the power output when going uphill. This imposes a large power requirement on the engine. When downhill, it needs to use the damping of the engine to brake, and the engine enters the reverse drag. Working conditions cause increased emissions. There are also quite prominent situations in which the general vehicle speed is not high, ventilation is poor, and vehicle exhaust emissions are contaminated with the working environment. Existing internal combustion engine power plants cannot precisely meet these requirements. Regardless of gasoline engine or diesel engine, due to the limitations of its own output characteristics, it is under relatively limited conditions to achieve the ideal match of power, economy and emissions. It can be seen that reducing the fuel consumption and harmful emissions of motor vehicles has become an urgent issue that needs to be resolved. After a lot of research, many countries and automobile manufacturers use hybrid power systems as the technology of choice for reducing fuel consumption and reducing emissions, and have made great progress in many aspects. Hybrid configuration At present, most mining vehicles use internal combustion engines as power devices, and only a few use battery-motors as power devices. Using the internal combustion engine as a power source, there is a problem of the above-mentioned petroleum energy consumption and exhaust emission pollution. Blind Hem Stitch Machine, Buttonhole Machine, Quilting Machine, Embroidery Machine Zhejiang Lejiang Machine Co., Ltd. , https://www.cnlejiang.com