All-electric vehicles, also known as battery electric vehicles (BEVs), revolutionize transportation with an innovative, sustainable approach. Eschewing traditional internal combustion engines, BEVs rely on an electric motor powered by a sizable traction battery pack. These vehicles require charging, which is typically accomplished through a wall outlet or electric vehicle supply equipment (EVSE). By predominantly running on electricity, they produce no tailpipe emissions, diverging from the typical liquid fuel components found in conventional vehicles.

Key components of all-electric cars play instrumental roles in their operational framework. The auxiliary battery delivers electricity to power vehicle accessories, while the charge port establishes the link to an external power supply for recharging the traction battery pack. The DC/DC converter is pivotal in converting higher-voltage DC power from the traction battery pack into the lower-voltage DC power necessary for running vehicle accessories and recharging the auxiliary battery.

The electric traction motor, propelled by power from the traction battery pack, is the driving force behind the vehicle's wheels. Additionally, some vehicles utilize motor generators that fulfill both drive and regeneration functions. The onboard charger serves as a critical component, transforming incoming AC electricity into DC power for charging the traction battery. It also oversees and regulates vital battery parameters during the charging process.

Furthermore, the power electronics controller plays a pivotal role in managing the electrical energy flow delivered by the traction battery while controlling the speed of the electric traction motor and the torque it generates. The thermal system ensures the maintenance of an optimal operating temperature range for the engine, electric motor, power electronics, and other essential components. Finally, the transmission in all-electric vehicles transfers mechanical power from the electric traction motor to drive the wheels, completing the seamless functioning of these sophisticated, eco-friendly vehicles.