Do new energy vehicles need hot cars in winter? The battery of the hybrid car is damaged. Can it be used as an ordinary gasoline car?

First of all, explain why new energy vehicles don't need hot cars: because the battery itself is a group of chemical power sources, the current depends on the chemical reaction of lithium ions under the action of electrolyte; The chemical reaction needs ideal ambient temperature, the reaction rate decreases, and the magnetic field force after being input into the electromagnetic coil of the motor decreases. In short, the torque will become smaller (torque × rotational speed ÷ constant) × 1.36, and the obtained value is horsepower, while the constant (9549) and the ratio 1.36 are fixed. At the same rotational speed, the torque will become smaller, the horsepower will become smaller and the power will become worse. The common unit of horsepower is meter horsepower. The concept is to drive 75 kilograms of objects at a speed of one meter per second. The kerb quality of the vehicle must be fixed. Suppose the curb weight is 750kg, and it takes 10 horsepower to drive at a speed of one meter per second, but the actual output is only 5 horsepower, and the speed can only reach one and a half seconds. This is the reason for low horsepower and poor power.

Referring to the influence of temperature and chemical power supply current, it can be concluded that the performance will deteriorate at low temperature, but after getting into the habit of performance curve, it can't adapt to the deteriorated power, and it is inevitable to compensate the power in other ways when driving. The compensation method is simple. The conclusion drawn from the reference formula is that the relationship among torque, speed and horsepower is mutually offset. After the torque becomes smaller, just increase the horsepower; Increasing the motor speed will naturally increase the total output current, and the power consumption will naturally be greater. New energy vehicles are powered by batteries. When the weather is cold in winter, the activity of the battery will also decrease. Especially pure trams. If it is not preheated, the battery life will be greatly reduced. Therefore, new energy vehicles need to be preheated. Preheating method: Turn the key to the ignition state 10 second, and then turn off the key. Turn on the machine again to the ignition state, and repeat it three times. Drive slowly at a low speed of about 1 km after starting. The cooling liquid in the battery gradually heats up, which can achieve the effect of preheating. As for whether the damaged battery of hybrid electric vehicle can be used as a tanker, it is impossible. The power of hybrid electric vehicle is used to charge the battery, and it can't play a power role.

After the battery is damaged, there is no driving ability. What's the use of the engine always charging the damaged battery? Or the battery is just lost, not damaged. This can still rely on the engine, but the fuel consumption will increase greatly. The overall structure of new energy vehicles is very simple. Basically, batteries, motors and electronic controls dominate the whole new energy vehicle. In fact, the hot car of new energy vehicles is a process of raising the battery temperature. After all, the battery is the biggest part of these three parts, which affects the durability of the car. Especially in winter, when the car is left outside all night, the actual temperature of the battery is below zero. At this point, the activity is very poor. Therefore, it is not recommended to accelerate and decelerate sharply after starting in the morning. Slow and uniform driving, combined with night cooling and constant temperature to improve battery temperature, is helpful for battery life. However, it is normal that the temperature is low in winter and the battery temperature cannot reach the constant temperature. New energy vehicles are facing such problems.

Commuting for 40KM is a long way, and most of them still can't reach this kilometer, so the battery temperature may reach the unit before it comes up. In addition, if the battery of the hybrid electric vehicle fails, it should be returned to the factory for inspection and maintenance as soon as possible. Because the hybrid electric vehicle is an engine and battery powertrain, which provides output power for the vehicle, one party should check the fault in time instead of continuing to drive. When using plug-in hybrid power in winter, it should be noted that due to the cold weather in winter, the engine needs to be warmed up under the condition of preheating. Only in this way can the engine last. Just like an athlete warming up before a game. Only in this way can they run fast. Generally speaking, the time to warm up the car in summer is 65438+ 0-2 in winter. Because of the temperature, the oil viscosity at the bottom of the engine is relatively hot.

A simple judgment of 3-5 minutes depends on whether the water thermometer with the tachometer pointer turned to 1000 rpm can operate normally, because the liquid will evaporate when the temperature rises to the boiling point, and the gasoline needs a working temperature of 90-10℃ to completely evaporate. When the gasoline has not evaporated and is wet, it is easy to burn out the engine. In the meantime, as long as the original hot car runs at a speed, it is necessary to take new energy vehicles as an example. In order to improve the cruising range and affect the service life of the motor, the pure electric vehicle hot car can be heated. Because of the original situation, the battery is completely working. What effect does this have on the original hot car of internal combustion engine power battery? The hot car method is to drive at a low speed for a few minutes, and then let the coolant in the power battery pack slowly open. Temperature helps the battery to work. Why are hot cars affected by direct violent driving, which will lead to a decline in power consumption speed and endurance? In addition, after the battery is heated, the power consumption of the sample is faster than that of the battery without temperature.