What are the differences between range-extended electric vehicles and plug-in hybrids?
1 Answers
The difference between the two is that the engine of a range-extended electric vehicle only supplies power and does not drive the wheels, and there is no transmission. Plug-in hybrid vehicles have a transmission, and their engines not only supply power but also drive the vehicle when the battery is depleted. Below are the relevant introductions: Range-extended system: The range-extended system installs an internal combustion engine range extender in the vehicle, but this internal combustion engine does not directly participate in driving the vehicle; it is only responsible for generating electricity for the vehicle. The electricity it generates is used not only to directly power the drive motor but also to charge the battery. When the battery is relatively full, the internal combustion engine can stop working, and the battery directly powers the motor to propel the vehicle forward. Therefore, this internal combustion engine can be regarded as the vehicle's "power bank." Plug-in hybrid: Composed of two power systems, motor drive and engine drive. A plug-in hybrid is a hybrid vehicle that can be charged from an external power source, to some extent a "fuel-efficient version" of a gasoline-powered car because it can both charge and refuel. Generally, at startup, the vehicle is driven by the motor, and when a certain speed is reached, the engine starts working. Of course, there are also cases where both systems drive the vehicle together. During driving, when the power battery is depleted, it can be recharged via an inverter. Currently, there are three types of power systems for plug-in hybrid vehicles: series hybrid systems, parallel hybrid systems, and series-parallel hybrid systems.
