During the National Day holiday, some trams also ran on high speed, but a big problem was that the power consumption was fast and the charging requirements were high. Then why does a pure tram run fast and lose power fast? One of the main reasons why a pure electric car loses power quickly at high speed is the weight of its body. Generally, a pure electric car has a relatively high body weight and is heavier than a fuel car of the same level. The higher the weight, the higher the power consumption at high speed. Since the main device of the pure electric vehicle is driven by the motor, generally when accelerating at high speed, the efficiency of the motor will not change much. However, the speed increase, the efficiency of the power system increase, and even be affected by wind resistance, which will lead to a very fast endurance. And when driving on urban roads, because the speed is relatively slow, the power consumption will be relatively small. The motor does not need idle speed when it is working, and it can also recover kinetic energy when it goes on and off occasionally, so the energy loss is relatively small, but it needs to consume more energy at high speed.
