What does hybrid engine mean?

[Stacy]

Plug-in hybrid electric vehicles (PHEVs) can be externally charged and operate in pure electric mode. After the battery is depleted, they switch to hybrid mode (primarily powered by an internal combustion engine) while simultaneously recharging the battery. Series plug-in hybrid: Also known as range-extended electric vehicles, in this configuration, the engine does not directly drive the vehicle. Instead, the engine first drives a generator to produce electricity, which then powers the electric motor to drive the vehicle. This results in a longer energy transfer chain and relatively lower overall efficiency. Representative models include the BMW i3 with range extender. Parallel plug-in hybrid: In this type, both the engine and the electric motor can drive the vehicle. It offers multiple power transmission modes, better dynamic performance, and a simpler structure. This widely adopted configuration represents the mainstream technical approach. Representative models include the BYD Tang DM.