Someone asked a question on the Internet before, why can gasoline cars drive at high speeds for a long time, but electric cars cannot?
Of course, there are also some high-end models of electric vehicles that can drive at high speeds for long periods of time. However, as long as it is a gasoline car, it is basically not a problem to run up to 140km. However, many small electric vehicles are extremely stressful if they want to drive at high speeds for a long time, and there are two main reasons for this.
The faster the car, the greater the drag on the car and the rolling resistance of the tires, which means that the engine must output more power to maintain the speed, which directly increases the power consumption.
However, this is not a problem for fuel vehicles, the energy density of gasoline is already very high, and it can be adjusted by the gearbox, if the speed of the car is faster, it will not have much impact on the range at all.
However, electric vehicles do not have a gearbox, the faster they run, the faster the motor will rotate, and the power consumption will be doubled, and the battery density is not as dense as gasoline, so the faster it runs, the shorter the range of the electric vehicle.
The average family car can easily achieve a cruising speed of 140 km/h. At this speed, the engine needs to provide about 35kw of power, while the average van can reach 60kw, so high-speed cruising is a piece of cake for fuel vehicles.
But electric vehicles can only produce high power for a split second, and they are divided into rated power and peak power. For example, a motor with a rated power of only 40kw can reach a peak power of 80kw.
Due to the need for energy saving, manufacturers generally put electric vehicles in a state of rated power to avoid bringing too much burden to the motor. If you drive more than 140km for a long time, you will inevitably have to use peak power, and the motor will not be able to handle it at that time.
So that's the advantage of a fuel truck driving at high speeds for a long time. In addition, a petrol car can still run fast with only 1% of the fuel left, but if the tram has only 1% of the battery left, I am afraid that it will not even be able to compare with the turtle climbing.
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