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Extended Range Electric Vehicle chassis |
Extended range electric vehicles (EREVs) are a type of hybrid electric vehicle that combines the benefits of electric power and an internal combustion engine to provide an extended driving range. EREVs, also known as plug-in hybrid electric vehicles (PHEVs) with range extenders, offer the flexibility of electric driving while overcoming the limitations of pure electric vehicles in terms of range and charging infrastructure.
In an extended range electric vehicle, the primary source of propulsion is the electric motor, which is powered by a battery pack. The vehicle can be charged by plugging it into an electrical outlet or a charging station. The electric motor provides sufficient power for everyday driving, allowing for zero-emission operation and reduced fuel consumption.
However, unlike conventional hybrid electric vehicles, EREVs are equipped with a range-extending engine, such as a gasoline or diesel generator. This engine operates independently of the wheels and is used to charge the battery pack when it reaches a certain state of charge or to provide additional power for longer trips. The range extender effectively eliminates range anxiety, as it allows the vehicle to continue driving even when the battery is depleted.
The advantage of extended range electric vehicles lies in their ability to offer a significantly extended driving range compared to pure electric vehicles. While the electric motor provides the primary power, the presence of a range extender ensures that the vehicle can continue to operate even when the battery is fully discharged. This makes EREVs a practical option for drivers who require longer driving distances or have limited access to charging infrastructure.
Moreover, extended range electric vehicles offer environmental benefits by reducing overall fuel consumption and tailpipe emissions. The electric motor's efficiency and ability to operate in electric-only mode for shorter distances result in lower fuel consumption compared to conventional vehicles. The range extender, when used, typically operates at its most efficient operating point, further improving fuel efficiency and reducing emissions compared to a conventional engine.
EREVs have gained popularity as a viable alternative to both conventional vehicles and purely electric vehicles, as they offer a balance between electric driving and extended range capabilities. The presence of a range extender provides drivers with the confidence to embark on longer journeys without the need to worry about running out of battery power. As charging infrastructure continues to expand and battery technology advances, extended range electric vehicles are expected to become even more prominent, offering even greater driving ranges and reducing reliance on fossil fuels.