In the snow mode, the car starts in the second gear through the automatic program, which reduces the torque output at the start, ensures that the car output is more gentle and stable, and avoids the wheel slipping in the snow. In addition, during driving, the working range of ABS will also be relaxed. Under normal circumstances, ABS, which needs to step on the brake pedal hard to intervene, will also open under the condition of non-emergency braking. Everything is to ensure that vehicles are safer when driving on ice and snow roads. Parking on icy roads, sometimes tires will freeze with the ground.

Before starting, dig out the ice, snow and frozen soil around the tire with a pickaxe. Don't start it forcibly, so as not to damage the tires and transmission parts. The biggest feature of timely four-wheel drive is that it can switch between front-wheel two-wheel drive and four-wheel drive according to the actual situation. When the vehicle runs on the normal road, the electronic control system will cut off the central differential lock and the rear differential lock, so that 90%-95% of the power is transmitted to the front wheels; When the snow and water on the road surface are serious and the tires slip and idle, the electronic control system will combine the central differential lock and the rear axle differential lock to make the front and rear wheels have power output.

When starting, if the driving wheel slips, the snow and ice under the wheel should be removed, or some dry sand, cinder, firewood and other things should be sprinkled under the driving wheel, or the road surface should be planed into X-shaped or Y-shaped grooves with a pick to improve the adhesion and facilitate the start. Four-wheel drive on ice and snow, if you use four-wheel drive mode, the possibility of slipping will be less. If you use the two-wheel drive mode, it will become a rear-wheel drive, which is very easy to slip. It is suggested that the ice and snow pavement should be changed to four-wheel drive mode in time, and the ice and snow pavement must be driven at low speed. Four-wheel drive is suitable for low-load working conditions at the right time, and can play a very good role in rainy and snowy roads and high-speed driving.

The timely four-wheel drive central differential lock is a multi-plate clutch structure, which, like a manual clutch, will transmit power to the rear wheel after combination. This multi-disc clutch central differential is small in size and electronically controlled, so it is widely used in family cars. For family cars, the timely four-wheel drive system is nothing more than a snowy day, and the wet and cold road surface has better adhesion, but many consumers call it a fake four-wheel drive. Today, let's take a look at the performance of timely four-wheel drive in various scenarios and how the title of fake four-wheel drive came from. Another major feature of the four-wheel drive is that the front axle adopts an open differential. If one front wheel slips, ESP will intervene in the brake pulley and distribute power to the other front wheel with adhesion.