Recently, all parts of the country have entered a humid and rainy summer. With the increase of rainy weather in this season, how should we deal with it? Here I will talk about the safety of driving in rainy days.
Driving characteristics on rainy days
According to the survey, the traffic accident rate of driving on rainy days is about 5 times higher than usual. Therefore, drivers must be vigilant when driving in rainy weather. In rainy weather, the main factors that directly affect driving safety are the obstructed view and the changeable road conditions. For example, rainwater or fog in the car will obscure the windshield and window glass, and the light reflection of the wet road and the road surface The reduced adhesion will increase the difficulty of driving a vehicle compared to daily. In addition, encountering road surface water is also a major test for drivers when driving in rainy weather. As the saying goes, "preparing for a rainy day", for car owners, preparation in advance is an indispensable job to calmly cope with complex driving situations. Maybe you can find the preventive measures that suit you in the following introduction.
The influence of road adhesion coefficient on driving
By comparing the adhesion coefficients under three different road conditions, we can easily see thatCarWhen driving on roads with different degrees of slippery, the road adhesion coefficient will decrease as the degree of slippery roads increase. At the beginning of the rain, the adhesion coefficient of the road to the wheel reaches its minimum value.At this time due toTiresThe accumulated water between the road and the road cannot be discharged in time, and the resulting power will makeTiresIt floats up slightly, forming a thin layer of water film between the tire and the road, causing the adhesion between the tire and the road to be lost. This is the so
Recently, all parts of the country have entered a humid and rainy summer. With the increase of rainy weather in this season, how should we deal with it? Here I will talk about the safety of driving in rainy days.
Driving characteristics on rainy days
According to the survey, the traffic accident rate of driving on rainy days is about 5 times higher than usual. Therefore, drivers must be vigilant when driving in rainy weather. In rainy weather, the main factors that directly affect driving safety are the obstructed view and the changeable road conditions. For example, rainwater or fog in the car will obscure the windshield and window glass, and the light reflection of the wet road and the road surface The reduced adhesion will increase the difficulty of driving a vehicle compared to daily. In addition, encountering road surface water is also a major test for drivers when driving in rainy weather. As the saying goes, "preparing for a rainy day", for car owners, preparation in advance is an indispensable job to calmly cope with complex driving situations. Maybe you can find the preventive measures that suit you in the following introduction.
The influence of road adhesion coefficient on driving
By comparing the adhesion coefficients under three different road conditions, we can easily see thatCarWhen driving on roads with different degrees of slippery, the road adhesion coefficient will decrease as the degree of slippery roads increase. At the beginning of the rain, the adhesion coefficient of the road to the wheel reaches its minimum value.At this time due toTiresThe accumulated water between the road and the road cannot be discharged in time, and the resulting power will makeTiresIt floats up slightly, forming a thin layer of water film between the tire and the road, causing the adhesion between the tire and the road to be lost. This is the so-called "water slide" or "water film" phenomenon.
At the same time, the road adhesion coefficient in rainy weather also has a great relationship with the vehicle speed. Driving on dry roads, as the vehicle speed increases, the adhesion (also called friction or grip) between the wheels and the road hardly changes. On a rainy day, when the vehicle is driving on a wet road, the grip of the wheels will decrease as the vehicle speed increases.When driving on rainy days, because the road is slippery, the vehicle is prone to slip when the speed is increased or when the vehicle turns sharply. Therefore, do not step on it in a hurry.Brake pedalOr make a sharp turn, use the engine braking force to decelerate.
Safety points for driving in rainy days
Combining daily experience and usage habits, we have summarized some safety points for driving in rainy days, including deceleration and skid prevention, light braking, low-speed wading, clear vision and daily inspections.
Deceleration and anti-skid
Due to the peculiarities of the road conditions on rainy days, the vehicle speed should be appropriately reduced when driving. When preparing to stop, it is best to start decelerating 100-200 m in advance to allow enough reaction time for the vehicles behind and enough braking distance for yourself to avoid occurrence Rear-end. Also need to pay attention to is not too close to the car when driving on rainy days, let alone overtaking frequently. Especially when overtaking a large vehicle, the water splashed by the large vehicle will make the driver of the small vehicle unable to see the situation outside the vehicle, which is prone to danger.
When the vehicle is skidding in the rain, if the front wheel slips, the direction should be corrected in the opposite direction of the side slip; if the rear wheel slips, the direction should be corrected in the same direction as the side slip.
Brake lightly
When driving on a rainy day, the brake should be used in the form of "spot braking", and continuously lightly step on the brake pedal to make the braking force output stable and even and avoid wheel lock.When a side slip occurs due to braking, the braking should be cancelled immediately and theTransmissionShift into low gear and use the engine braking force to achieve the purpose of deceleration.
Low speed wading
Among experienced veteran drivers and self-driving travel enthusiasts, there is a saying "walk the sand quickly and walk the water slowly", among which "walking the water slowly" refers to effective measures taken when wading in the face of rain.Vehicles should not drive too fast when wading, because too fast speed will splash water and then suck inAir filter, Causing the engine to stall.The vehicle should observe the depth of the accumulated water before wading. Generally, when the depth of the accumulated water exceeds the previousBumperIt is recommended not to continue driving.
Basically, the depth of the stagnant water does not exceed half a wheel or reaches submersionExhaust pipeDepth, you can pass safely. When wading, you should use the low gear of the transmission and hold the throttle, and do not stop, change gears or make sharp turns. If the engine stalls while wading through the water, do not continue to try to start the engine to prevent water from entering the engine and causing damage to the vehicle.
Clear sight
As the rainfall increases or decreases, it should be adjustedWiperThe wiping speed keeps the windshield glass transparent.When it rains, the air flow in the closed car space is poor, and it is easy to form fog on the car windows. You can use it at this timeCar air conditionerCold air or warm air function defogging. The difference is that the cold air defogging speed of the air conditioner is fast, and the fog will appear again soon after the air conditioner is turned off. Although the air conditioning heater has a slightly slower defogging speed, the defogging effect is complete, and it is not easy to fog again after turning off the heating function.
Daily inspection
Regularly check the condition of the vehicle to avoid being at a loss when it rains. The inspection includes that the wiper blade should be changed once a year, glass water should be added regularly, the tire tread depth and wear condition should be checked regularly, the air outlet of the air conditioner towards the windshield should be checked whether the air outlet of the windshield is unblocked, the drainage channel of the vehicle should be regularly cleared, and the drainage around the drain should be cleaned. Dirt etc. Inspections like this can be done by ourselves in our daily lives. It seems simple, but it can ensure the safety of driving on rainy days. (Editor: Du Yang)
Zhuozhong Automotive Network
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![Take precautions and take precautions before they happen-a guide to driving safety in rainy days[汽车修理知识]](/view/img/nopic.png)
