Precautions for safe driving in summer

Summer is a very unfavorable season for cars and drivers. Although there are many unfavorable factors affecting safe driving, the main factors are as follows:

1. The influence of hot weather on cars

Because the temperature rises in summer, the air density decreases, the inflation coefficient decreases and the engine power decreases. The test shows that when the temperature rises from 15 to 35, the engine power decreases by 6%~8%. High air temperature not only makes the engine overheat and produce deflagration, but also reduces the viscosity of lubricating oil, resulting in poor lubrication and accelerated parts wear; High temperature will also increase the breakdown of cars. For example, high-temperature hydraulic brake fluid is easy to produce gas, which makes the braking efficiency decrease or even fail; Because the road surface temperature is too high, the tire heat dissipation is not good, the tire pressure rises, the rubber is easy to soften, and high-speed driving is easy to cause tire puncture; When the temperature is high, the cooling capacity of the water tank decreases, which makes the cooling liquid easy to heat up or even "boil"; High temperature makes gasoline evaporate quickly, often forming gas resistance, resulting in poor or interrupted oil supply; High air temperature will also aggravate the evaporation of electrolyte water in the battery, thus reducing the service life of the battery. In addition, the hot weather will soften the asphalt pavement, and some places will even be flooded or melted, which will not only increase the driving resistance, but also greatly reduce the friction and make the braking effect obviously worse.

2. The influence of hot weather on drivers

Driving in hot weather, exposure to strong sunlight, baking on the ground, plus the heat emitted by the engine, you can imagine how high the temperature inside the car should be. If there is no air conditioning equipment in the cab, driving in a high temperature environment for a long time will cause a series of physiological and psychological changes, such as physical discomfort, irritability, mental fatigue, slow response and even heatstroke; In summer, the days are long and the nights are short. High temperature will seriously affect sleep and rest, leading to lack of energy. It is easy to get sleepy when driving, especially in the afternoon, and it is easier to get tired and doze off, and it is impossible to receive and process traffic information normally. According to relevant data, those who drive 10 hours or more every day and sleep less than 5 hours have the highest accident rate. Because the driver always sits in one position, his activities are restricted, the sweat on the seat is not easy to evaporate, the hot and humid seat makes people uncomfortable, and the back and buttocks may grow prickly heat. These unfavorable factors will bring serious security risks.

This is all that Bian Xiao introduced. After reading it, I wonder how much you know about the factors that affect safe driving in summer? If you like, please continue to pay attention to this website.