How to use part-time 4wd in rainy and snowy weather?

PART-TIME4WD is a form of four-wheel drive system. It can open or close the transfer box according to the road conditions, thus changing the two-wheel drive or four-wheel drive mode, and the driver can switch the drive mode freely. Generally, the part-time 4wd is only driven by the front wheel or the rear wheel. When the road surface is covered with snow or gravel, it can be switched to four-wheel drive, which is the so-called choice of four-wheel drive. It is the most common driving mode for off-road vehicles and four-wheel drive SUVs. In part-time 4wd, the driver can choose two-wheel drive or four-wheel drive mode by manually switching the driving mode. It not only optimizes the power and passability of vehicles, but also considers the rationality of fuel. However, using part-time 4wd requires the driver to judge the road conditions and manually operate the driving mode. In rainy and snowy weather, you should pay attention to the following points when using part-time 4wd: 1, part-time 4wd is the driving mode that the driver switches manually; 2. The driver can choose two-wheel drive or four-wheel drive mode by opening or closing the transfer box; 3. Part-time 4wd can be classified from the general direction according to the efficacy, which can be divided into 4WD of FR car and 4WD of FR car. According to this structure, the engine power is transmitted to the transmission, transmission shaft, front and rear transmission shafts, main reducer and differential, transmission shaft and wheels in turn; 4. In four-wheel drive, the transfer box is used to transfer power to two non-driven wheels. Ordinary transfer gears can be switched between two-wheel drive and four-wheel drive, and between high speed and low speed. Therefore, 5th forward gear 2WD. H or 4WD. When driving on ordinary roads, you need to use the H, 5th forward gear 4WD. L should be used when driving on uneven roads.