No matter how good the car is, there are limits. Snow and ice pavement is a special road condition with the highest danger level. In recent years, with the rapid development of automobile technology, a large number of electronic devices have appeared, such as ABS braking anti-lock system, ASR accelerated slip adjustment, ESP electronic anti-chaos program and so on. It makes it possible for the car to help the owner drive or even "save himself" at dangerous times. But even the best active safety equipment can't be foolproof, especially when four wheels can't catch the ground, your operation and the "self-help" measures of the vehicle won't work. This situation is easy to appear on the icy road as light as a mirror. As long as your speed is faster and your inertia is bigger, the car will slide out of control. As the old saying goes, drive carefully and always tighten the string of safe driving. When driving on icy roads, we should pay attention to several misunderstandings. Myth 1: On ice and snow roads, rear-wheel drive cars are better than single-wheel drive cars. The selling point of rear-wheel drive cars is high performance. The reason is that the front and rear weight distribution is fair, the wheel grip is good when accelerating, and the throttle can easily control the attitude of the vehicle. Single-wheel drive is widely used because of its compact structure and low cost, which also makes rear-wheel drive cars scarce. Because this kind of driving style is popular in middle and high-class cars and high-performance cars in a few departments, it gives people the impression that rear-wheel drive cars are easier to drive. No, actually, driving first is more in line with people's driving habits. For example, when turning, driving first is understeer. The normal driving habit is to turn off the throttle first, drive first and then return to normal driving easily. Then driving is the opposite. You have to refuel to get back to the expected route. On the icy road, it is better to drive first than later. Because the front wheel of the first driver is both the steering wheel and the driving wheel, the direction is good, and the center of gravity of the first driver is relatively front when starting to accelerate, so it is best to train in Fuzhou driving test before using these methods. If the front wheel is loaded, the adhesion will be better and it will not slip easily. Then the front and rear wheels of the vehicle are responsible for steering and driving respectively, which is easy to cause uncoordinated movements on the slippery road surface, and it is more likely to cause pushing and sideslip. Myth 2: ABS can shorten the braking distance when the snow is in distress. Many people think that ABS can improve the braking effect, but this is not the job of ABS. In fact, steering controllability and increasing braking stability are the main tasks of the automobile during braking. Generally speaking, don't let the locked wheels brake, so that the vehicle can still move to avoid obstacles when braking, and try to avoid slipping when braking. ABS allows drivers to safely hard brake and tire slip rate, and can give full play to the maximum braking performance. However, in snow or sand, snow and gravel, the braking distance is long due to the cumulative effect in the tire, but it may take a long time. In the ABS car with emergency braking, you must be decisive to the end, don't smoke, and kick. When ABS is equivalent to a high-frequency pumping, the driver will feel the vibration of the brake pedal and hear a "click" to brake the master cylinder, so don't be afraid, relax the pedal, "absolutely" press the brake pedal hard, turn the steering wheel and take the initiative to avoid danger. Myth 2: Use ASR, ESP car body and ice track to turn off the ice and snow that is easy to slip. Drive the anti-skid ASR system and TCS traction control system when the wheels are idling, or command the transmission to reduce the power of throttle and brake to make the wheels slip down. So as to ensure the smooth start of the vehicle. Electronic stability control system is a more advanced safety device, which can control not only the driving wheel but also the driven wheel. Such as ASR and ABS, and through any four-wheel braking function, the vehicle can keep the same driving track, prevent oversteer and understeer, and avoid risks. Note that ESP can control four wheels, but it cannot control the friction between tires and the ground. Therefore, in Fuzhou driver's license training center, the strength can be controlled by ESP and cannot exceed the attachment limit. Compared with normal driving on dry roads, the electronic active safety systems such as ESP and ASR of vehicles still need to be driven carefully. Myth 4: Four-wheel drive around the world is almost a good representative of four-wheel drive off-road ability, which leads many people to believe that four-wheel drive and ice and snow drive are also fearless. Compared with two four-wheel drives distributing power to all four wheels at the same time, the task of driving force of each wheel is relatively small, and it is unlikely to break through the adhesion limit, making it easier for the four wheels to start accelerating. But when braking, the braking system can also use four-wheel drive and two-wheel drive, so four-wheel drive can't shorten the braking distance. In most cases, if the throttle is reduced and the engine brakes, the resistance of the engine can be dispersed to the four driving wheels, which is better. Can be divided into four-wheel drive, four-wheel drive, full-time four-wheel drive and timely four-wheel drive, including part-time 4wd and timely four-wheel drive. There are usually two drivers on the road, and there is little difference. Time four-wheel drive, people in need choose the driving mode used by hard-core off-road vehicles. CR-V, such as timely lion running four-wheel drive, generally uses two driving wheels to prevent skid, and then the other two power supplies work with a certain time difference. Full-time four-wheel drive has always been a real four-wheel drive, compared with four-wheel drive models in high performance, such as four-wheel drive Audi quattro, Subaru impreza and other models, and. Therefore, be careful when using the same four-wheel drive on the ice road. Four-wheel drive vehicles need to choose four-wheel drive gear to play a role. Listen to the old driver 10' s explanation of snow. Usually drivers have rich experience in driving in snow. Sharing these experiences will help you avoid detours or take fewer risks in practice. Look at their experience, its voice. 1 Snow tires and road parking Sometimes frozen soil should not be forcibly close to the surrounding ice picks and frozen soil before excavation to prevent damage to tires, transmission parts and tires. If the wheel slips at the start, removing the snow under the wheel, scattering some dry sand, cinder, firewood and other objects under the driving wheel, or adopting the "X" or "Y" groove of excavation method will all help to improve the bonding performance. In terms of traffic, everyone should pay more attention to the road conditions and be prepared to slow down or brake. 3. Avoid the tarmac, so you can't start. It is inevitable to stop the road extending up the mountain and stay away from the vehicles in front to prevent the vehicles in front from slipping after starting. Stop and try to drive the wheels with less pressure on dry ground, which is easy to start. On the snowy road, start the second gear of the car and slowly lift the clutch. Some automatic transmission models have snow and can be opened. Automatic cars without snow mode must remember to step on the gas pedal lightly. The best snow coat sprocket. 6. Maybe, in order to avoid overtaking, you will choose a wide road car and keep a safe distance from the side of the road that is not far enough horizontally. 7 Go straight and change lanes as little as possible. It is best to follow the rut track instead of referring to the rut to understand the surrounding environment, so as to determine the direction of travel and try to choose the middle road. In the case of wet and cold, parking for a long time, eight layers of bedding, straw, wood and other objects can be scattered under the wheels to prevent the tires from freezing on the ground. If the parking lot is on a ramp, put a gear, tighten the handbrake, and put wood and stones under the triangle wheel to prevent slipping. Jiufang road, because the air humidity on the open space is high, it is easy to freeze, and the small bridge and flowing mountain road are cold? ; ? The dark side also freezes easily. There may be no snow in the same section in winter, but not all parts are not frozen, so it is easy to be wary of these sections because of ice. When driving in snow, you should slow down, use more wipers, whistle more and turn on the lights to let others know your existence in advance. The word "slow" for first-class driving in snow is driving on icy roads, and all skills can be summed up in one word: slow, slow turning, slow braking, slow charging and slow clutch. Driving on icy roads is more harmful than too much action. The speed of slow ice lane must be controlled, because the higher the speed, the greater the inertia and centrifugal force when turning, and the braking and steering will become difficult. Move slowly, manipulate Slow driving adhesion is not enough, because the grip on the ground and steering wheel is limited, and the steering inertia of emergency vehicles should maintain the existing driving trajectory, and the steering is easy to control. However, emergency steering will easily lead to a sharp change in the center of gravity of the car body and slip. Slow braking, even with ABS, EBD, BA and other electronic systems to supplement the braking force, still achieves tire grip, so even if you step on the brakes, they can't achieve the same braking effect on dry roads. The braking distance will be much higher than usual, often four times that of the main road. For vehicles without ABS, only drivers who brake by lights or water pumps can avoid tire locking and keep the direction stable. Start or accelerate slowly, and the accelerator must be lightly stepped to adapt to the small adhesion on the ice surface and avoid the deviation that the driving drum cannot start or slip due to rotation. Slowly lift the clutch to start or transfer, you need to slowly lift the clutch, lift the clutch, and start as the fuel of MengMeng effect, which is convenient for wheel slipping. When driving, especially in the high-speed deceleration gear, the clutch will suddenly slow down too much, leading to the driving wheel. This is as dangerous as vehicle braking. Don't run around in the snow. I have participated in many ice driving training, including Audi and Jetta's snow driving experience and car driver training. With the freezing point of driving experience, it has actually become a driving fear of ice and snow. Many colleagues have rich driving experience, and even magazines that take professional driver's licenses have ice bows. I personally saw a well-known reporter from Huannan Road sneak out, but it was not technology. This is inexperienced, but it is also broken. After all, it is rare in the frozen foot parade in the south. I have experience. A taxi in Harbin had an accident, and I looked at the slide of the car in front of me, and I didn't have the strength to save it. It's not that the taxi driver is inexperienced, but that he is too "underestimating the enemy". In Chengdu, high altitude, heavy snow and cold scenes are common in the surrounding areas. About two hours out of the city, you will encounter ice and snow. If you have no driving experience, even if you pay attention, it is difficult for ships and cars to drive correctly. As for reckless drivers, ice and snow are a big trap and it is easy to capsize. In the cold areas where these small car owners live, they may also face the troubles of freezing wipers, freezing windshields and the inability to start their cars, and they are at a loss. If you want to see the driving stimulation in the wild in the snow diffusion point, it is suggested that you must find an inexperienced place, or don't rush on the city road. Safety first, remember to remember!

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