What should I pay attention to when driving a bus in summer?

In summer, the weather is hot and the air is dry, so you should pay attention to many aspects when driving a bus:

1. Open the window for ventilation before entering the car.

Please don't turn on the air conditioner when entering the exposure car. You should first lower all the windows or open the doors, then turn on the big fan to speed up the air circulation, and then close the windows and turn on the air conditioner after three or four minutes, so that the cooling effect is better. In addition, due to the low boiling point of formaldehyde, its release at high temperature is 20% to 30% higher than usual, which makes the formaldehyde in the exposed car increase greatly. Opening the window first can avoid inhaling carcinogenic gases such as formaldehyde and benzene. When parking, you can also lower the glass doors of the four windows by 2~3 cm, and the windows with gaps can dissipate some heat. If it's not troublesome, you can also use a sunshade curtain or a sunshade car cover, which can reduce the temperature inside the car from 8℃ to 10℃.

It is not advisable to turn on the air conditioner for a long time.

Vehicles equipped with air conditioning have better sealing performance. Most people will feel dizzy and tired after staying in this environment for a few hours, and their memory will also decline. That's because when the engine is idling, gasoline will not burn completely and carbon monoxide will be produced. At the same time, the people in the car exhaled a lot of carbon dioxide, which drastically reduced the oxygen in the car; On the other hand, using the air conditioner for a long time after getting on the bus will make the condenser pressure too high and cause losses to the refrigeration system. If the temperature inside the car has reached a comfortable temperature, you can turn off the air conditioner first and then turn it on later. In addition, when the car is idling, it is best not to turn on the air conditioner for a long time, let alone sleep in the car, which may be dangerous. Therefore, the working state of the air conditioner should be properly adjusted, or the window should be opened for ventilation every once in a while.

3. Check and clean the air conditioner frequently.

Air conditioning is the most frequently used component of cars in summer, and it is also the most prone to failure. If the air conditioner of your car doesn't work, please be sure to check whether the air conditioner is short of fluorine, leaking air and frozen lubricating oil. In addition, there are too many accessories on the condenser, the compressor drive belt is loose, and there is too much or too little refrigerant. It's the reason why the air conditioner doesn't cool. Unclean air conditioning systems can also easily infect drivers and passengers with respiratory diseases.

4. Don't wear dark glasses when driving.

The dark color of sunglasses will delay the time for eyes to send images to the brain, leading to "poor vision" and "vision error", especially when encountering traffic lights and entering darkness from bright places. This visual delay will also distort the sense of speed and distance, which will make drivers wearing sunglasses make wrong judgments. In an emergency, they will not respond in time, which can easily lead to traffic accidents.

5. Don't put drinking water in the car.

Bottled water mostly uses polyester bottles, which often contain substances that may lead to chronic poisoning, such as bisphenol A. Especially if the bottle is placed in a car with high temperature, the high temperature will change the polyester bottle, causing more harmful substances to precipitate into the water, which will become a health hazard.

6. Wash the car in the shade.

When washing the car in summer, it is best to wash it in the shade. The reason is that the water droplets on the car body will produce a condensing effect similar to a magnifying glass in the sun, which will cause a higher temperature at the bottom of the water droplets and hurt the paint surface. Similarly, after a shower in summer, car owners should also clean their bodies in time to avoid vehicles with water driving in the sun.

7. The tire pressure in summer should be lower than the normal tire pressure 10%.

In summer, the road surface temperature is high. If a car tire runs on a hot road for a long time, the air pressure in the tire will increase. At this time, if the tire is damaged or unstable, it is easy to burst. The light will affect people's normal life, and the heavy will cause the tragedy of car crash and death.

In summer, the temperature in the cylinder rises rapidly, and even the whole engine will be damaged or even scrapped in serious cases. If you encounter "boiling" on the road, don't open the radiator cover immediately, pull over and wait for the water temperature to drop before adding water. At ordinary times, it is necessary to regularly check whether the cooling system and water tank have sufficient coolant.

9. Don't burden the automobile electronic circuit.

The most common cause of auto-ignition accident is short circuit of wires, which is related to aging of wires. Secondly, some car owners install various additional electronic devices in their cars, such as electronic burglar alarms and high-grade stereos, which increase the load of automobile circuits. Car maintenance experts said that it is necessary to maintain the car regularly and check the engine, circuit and oil circuit to see if there is aging and oil leakage. And minimize installation or modification. If modification is needed, it should be done by professional technicians.

10 Avoid fatigue and driving irritability.

In hot weather, it is easier to get tired. Most people often take a lunch break in the hot season, but drivers engaged in long-distance transportation have no time to take a lunch break in order to catch up with time and income. It is easy to doze off while driving, which will lead to the phenomenon of "high temperature hypnosis" and make it impossible to estimate the safe driving distance correctly.

The traffic police suggested that before driving for a long time, you should ensure adequate sleep, not engage in high-intensity labor, be healthy and be happy. At the same time, when driving on the expressway, you should increase or decrease the working hours according to your own situation.

In addition, when driving in high temperature, drivers are emotional and prone to accidents. Mr. Yang, a professional driver with 30 years' driving experience, said that it is best to prepare some towels or wet paper towels, prepare some heatstroke prevention drugs such as pills, pay attention to emotional adjustment, and never drive angry or tired.

1 1. Turn off the engine and check whether the water temperature is too high.

When the vehicle is driving, the water thermometer rises and approaches the red line position, or white steam suddenly emerges from the hood, indicating that the temperature of the water tank is too high. Too high water temperature will lead to poor engine heat dissipation, accelerate piston wear, cause uneven temperature change, affect power performance and increase fuel consumption.

12. Never drive with slippers.

In hot weather, many drivers even like to put on slippers to drive, which is convenient and cool. Because slippers are easily hooked by brake pads and leave the soles of feet, in an emergency, if slippers slip easily when stepping on the accelerator or braking, it is likely to delay the braking opportunity and lead to traffic accidents. The best way is to prepare a pair of flat shoes in the trunk of the car, wear them when driving, and then change them after getting off the bus.

13. Stay away from "traffic jam irritability"

It's very hot in summer, which makes people irritable. Drivers should keep a good attitude.

14. Don't eat too many cold drinks.

When driving, most of the blood will flow to the tense muscles to supply enough nutrition and take away the waste, thus temporarily reducing the blood supply to the gastrointestinal tract. If a large number of cold drinks are ingested, the gastrointestinal blood vessels will suddenly contract, and the blood flow will decrease, which will often cause physiological dysfunction, affect the digestion of food, and cause gastrointestinal diseases such as stomach pain and diarrhea.

It is better to drink hot tea than cold drinks in summer. Drinking hot tea can dilate capillaries, open sweat pores, relax sweat glands and sweat freely, which is beneficial to heat dissipation in the body. Moreover, theophylline in tea also has diuretic effect, which can increase urination and take away some calories.

15. Be extra careful when driving.

In hot weather, people like to use umbrellas to shade the sun, but in order to keep out the sun, the height of umbrellas is generally low, which blocks the view of umbrella holders. So be careful when driving, especially when overtaking and turning.

16. Gas lighters should not be used.

The heat wave is rolling in midsummer, and some drivers have the habit of smoking to relieve fatigue. After the cigarette is lit, the gas lighter is usually conveniently placed on the dashboard. This is very dangerous. Disposable gas lighters contain liquid gas in their plastic containers. When the temperature is above 40 degrees Celsius, the gas will expand when heated. The plastic shell will explode when heated. Although the explosive power of gas lighters is not great, when they are put together with some oil and combustible materials in the car, once they explode, it is easy to cause a fire, and the consequences are unimaginable. Therefore, drivers should not use gas lighters in hot summer. Besides, smoking is not allowed while driving.

17. Beware of auto-ignition at high temperature in summer.

Clean up flammable items "Inflammable and explosive items such as perfume and gas lighters in the car must be cleaned up in time." These flammable and explosive materials, exposed to high temperature, can easily cause fire or explosion.