【Haichuan Teahouse】Why do cars use less fuel at high speeds, while electric vehicles consume more electricity?
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It’s an interesting phenomenon: with the same tank of fuel, if a gasoline vehicle can cover 500 kilometers in urban areas, its range on the highway is at least 700 kilometers. With a full charge, if an electric vehicle can travel 500 kilometers in urban areas, its range on the highway is likely to be less than 500 kilometers. Why?
A car’s fuel consumption is related to many factors, with the main two being engine speed and gear position (the same applies to automatic transmissions). Urban areas are often in a low-grade, high-speed operating mode; it’s strange if no fuel is consumed. :)
Electric vehicles have a relatively high reactive power in their high-speed, high-current coils; fuel engines are inherently devices that operate at high speeds
To achieve high torque, excitation consumes a large portion of the electrical energy, causing the coils to heat up and generating reactive power
Trams consume significantly more electricity once they exceed a certain speed!