Entering April, many southern cities have felt the "enthusiasm" of the sun, the temperature has gradually risen, and Guangdong and Hainan have seamlessly entered the summer, "offering" a high temperature of nearly 30 degrees. For many friends who use electric vehicles for the first time, there are still many doubts about how to drive vehicles safely and conveniently in high temperature weather. To this end, Brother Reel took stock of some common electric vehicle high-temperature car problems to see if there are any you encounter.
High temperature, long-term operation after charging need to pay attention
In the high temperature environment, after a long period of exposure and driving, the temperature of the battery and motor will become higher and higher. If the fast charging pile is used immediately to charge the vehicle at this time, the access of high-voltage electricity will further increase the temperature of the battery pack, which can easily lead to charging failure, "locking", and even spontaneous combustion.
Although some models currently use more advanced battery liquid cooling technology, it can reduce the battery temperature. However, for most models, It is recommended that after a long period of operation and exposure to the sun, the electric vehicle should be parked in situ for about 30 minutes before high-voltage charging, giving the battery pack an appropriate cooling time to further reduce the risk of spontaneous combustion. Of course, the use of high-voltage fast charging should also avoid too high charging capacity, charging amount as far as possible set at about 80%, otherwise it is easy to affect the battery life.
Electric vehicles also need coolant
Although the pure electric model does not have the internal combustion engine system of a fuel vehicle, it is also necessary to add coolant to cool the motor and electric drive components. Under the high load operation of the motor, the coolant plays a key role in cooling and maintains the normal operation of the motor. Friends who use pure electric vehicles recommend that according to the manufacturer's guidelines, go to the store on time to maintain the vehicle to ensure the normal amount of various types of oil.
In the case of standing water, you cannot blindly flush
As we all know, when the fuel vehicle passes through the wading road, the accumulated water is easy to enter the engine through the intake pipe, resulting in flameout, cylinder pulling, and damage. So, can a pure tram without an engine safely drive into a waterlogged road? This is not the case. Although the pure electric vehicle does not have an internal combustion engine, the battery pack also has a good sealing, but the vehicle also has many electrified components, and most of them are high-voltage, if the accumulated water enters the inside of the pipeline, it will not only cause serious damage to the vehicle, but also more likely to leak electricity, endangering life safety.
In this regard, Brother Yuan's suggestion is that when a pure electric vehicle encounters a waterlogged road, the situation allows it to find another way. If there is no way back, the water is only over the tire wall, and you can choose to pass slowly and cautiously.
Remotely turn on the air conditioner, remote control vehicle does not rain
Parking in the open air environment, a few minutes of sun exposure is enough to make the carriage hot and sweltering, many people will choose to open the doors and windows for ventilation to quickly cool down. However, at present, many electric vehicles are equipped with mobile phone remote control function, remotely control vehicle air conditioning through mobile phone App, turn on the air conditioning in the car in advance, and cool down the interior of the vehicle, so that they are not afraid of the sweltering heat of the carriage caused by long-term exposure.
In addition to the high temperature, sudden rainstorms can easily catch people off guard. At present, many smart cars are equipped with mobile phone Apps that support remote control functions, such as BYD, Changan, Tesla some models, can remotely control vehicles at low speed, driving vehicles from the parking lot to designated locations. This feature is especially useful on rainy days without an umbrella.
Do not leave children and pets alone in the vehicle
Many parents will covet convenience when going out to run errands or shop, temporarily placing children or pets in the car, but when the key leaves the vehicle for a certain distance, the vehicle will automatically lock and raise the window, so that the children or pets in the car are in a confined space, endangering life safety. The danger of this situation in the high temperature environment will be greater, and the lack of oxygen in the car and the high temperature will cause children and pets to be uneasy. Therefore, no matter how short the time away from the vehicle, the driver should take the children and pets in the car away to avoid danger. Of course, models such as Tesla will provide "pet mode" to ensure the normal breathing of the creatures in the car by turning on the air conditioning, but It is still not recommended to leave children and pets without autonomous control alone in the car.
If you encounter children and pets trapped in the car for a long time, and can not open the door and window normally, do not worry, immediately contact the professional lock opener to open the lock, or conditionally smash the glass to open the car door.
Full charge will also lose power?
Some friends will encounter the situation that the vehicle's power battery is fully charged, but many functions in the car cannot be used normally, and even the vehicle cannot be started. In fact, pure electric vehicles parked for a long time, it is also prone to battery power loss, which will lead to vehicle lights, window control, control systems, electronic gear shifts and even vehicle machine systems can not be used normally. The battery here refers to the weak current system, not the power battery, that is, the 12V battery.
Some friends may wonder, why do you need a 12V battery with a power battery? The power battery mainly outputs high-voltage electricity and is responsible for vehicle drive, while the 12V battery outputs weak current to ensure the normal operation of the vehicle's electronic components. If the weak current battery is in a power deficit, you should contact the professional maintenance personnel for maintenance and replacement, do not replace it yourself, so as not to mix the high-voltage circuit and cause danger.
Whether it is a fuel vehicle or an electric vehicle, the safety of the car in the high temperature environment should be paid attention to, the above several are based on the common car problems listed in the use of skills, if it is helpful to you, welcome to collect, forward for backup. Of course, at present, the country has not yet fully entered the high temperature environment, and the real high temperature will have to wait until the summer comes, but in any case, mastering more safe car skills can better cope with unexpected situations.