What are the disadvantages of range-extended electric vehicles?
2 Answers
1. Power wastage. Since the engine and generator do not directly drive the wheels, this part of the power is wasted, while the weight brought by the engine and generator is not reduced. For example: a range-extended plug-in hybrid vehicle has an engine power of 50KW, a generator power of 50KW, and a motor power of 100KW. The vehicle carries a total power of 200KW from the engine and motor, but the power that can drive the wheels is only 100KW. 2. Higher fuel consumption under highway conditions. This is because under highway conditions, if the engine directly drives the wheels, it can always operate in the optimal working mode. However, the range-extended plug-in hybrid has an additional conversion process, and the conversion itself consumes energy, resulting in higher fuel consumption.
I've been driving a range-extended electric vehicle for two years and have noticed quite a few drawbacks. The most frustrating part is the high initial cost – the new car price is significantly higher than pure electric vehicles, and that extra money could cover my fuel expenses for several years. Additionally, the vehicle's weight has increased considerably with both the battery and small engine installed, making it feel much less agile when parking or turning corners, almost clumsy. Maintenance is even more troublesome; when either system fails, you have to repair both. Just last week, I spent 2,000 yuan fixing the range extender. The space has also shrunk – the trunk is smaller, making it difficult to fit even a suitcase. Moreover, on long trips, when the range extender kicks in, the noise is a constant hum, significantly reducing driving comfort. Overall, saving on electricity doesn’t necessarily mean saving money, and it’s more suitable for short-distance drivers who occasionally go on suburban trips.
