Can the Range Extender of Electric Vehicles Really Provide Unlimited Range?
2 Answers
It cannot provide unlimited range but only extends the driving distance of electric vehicles. Here is the relevant introduction: Introduction to Range Extenders: A range extender generally refers to components that can provide additional electrical energy, enabling the vehicle to travel a longer distance. In the traditional sense, a range extender refers to the combination of an engine and a generator. Introduction to Extended-Range Electric Vehicles: An extended-range electric vehicle is a type of electric vehicle that uses other energy sources to replenish electrical energy when the battery is depleted. Its main operational characteristic is that it mostly operates in pure electric mode, with only a few instances of operating in range-extending mode, where the range extender generates electrical energy to power the motor or charge the battery.
As someone frequently exposed to automotive technology, I find the working principle of electric vehicle range extenders quite fascinating, but claims about infinite range are purely misunderstandings. Simply put, a range extender uses a small internal combustion engine to generate electricity and extend the battery-powered driving distance—it's not a magical device. The engine needs to burn gasoline or diesel, and the fuel tank has a limited capacity—once filled, that's all the electricity it can generate. When the fuel runs out, the engine stops, and the vehicle can only rely on the battery; when the battery is depleted, the car comes to a complete halt. There are also efficiency issues like heat loss during energy conversion, with average fuel economy being several liters per 100 kilometers, far from zero consumption. Physical laws, such as finite fuel and battery degradation, are insurmountable. For example, test data shows that a range extender can extend the driving range from 200 kilometers to around 500 kilometers, but there's still a limit. Owners should pay attention to maintaining the range extender engine, performing regular oil changes and maintenance to avoid malfunctions. While it alleviates some range anxiety, planning fuel stops is still necessary. Don't believe the myth of infinite range—this is a compromise solution within real-world constraints.
