What does a plug-in hybrid electric vehicle mean?
1 Answers
A plug-in hybrid electric vehicle, abbreviated as PHEV, is a new energy vehicle that falls between pure electric vehicles and fuel-powered vehicles. It has both the traditional car's engine, transmission, drivetrain, fuel system, and fuel tank, as well as the pure electric vehicle's battery, motor, and control circuit, with a relatively large battery capacity and a charging port. It combines the advantages of both pure electric vehicles (EV) and hybrid electric vehicles (HEV), enabling zero-emission driving in pure electric mode and extending the vehicle's range through hybrid mode. In daily use, it can function as a pure electric vehicle as long as the single usage does not exceed the battery's provided range (generally achieving over 50 kilometers is not a problem), thus achieving zero emissions and zero fuel consumption. Due to the high cost of batteries, it is difficult for such vehicles to enter households at a lower price in the short term. However, influenced by the domestic automotive development trends and government attention, corresponding subsidies have been increased. Based on the proportion of motor driving power to the total vehicle power (also known as the hybrid degree), hybrid electric vehicles can generally be divided into the following four types: micro hybrid, with a hybrid degree of less than 5%; mild hybrid, generally around 20%; moderate hybrid, with a hybrid degree of 30% to 40%; and full hybrid, with a hybrid degree of over 40%. Series plug-in hybrid electric vehicle: Also known as range-extended electric vehicles. The engine does not directly drive the car; instead, it first drives a generator to produce electricity, which then powers the motor to drive the car. The energy transfer chain is long, resulting in relatively low overall efficiency. Parallel plug-in hybrid electric vehicle: In this type, both the engine and the motor can drive the car. It offers multiple power transmission modes, good dynamic performance, simple structure, and wide application, making it the mainstream technical route. Series-parallel plug-in hybrid electric vehicle: Also known as power-split type. It generally requires two motors (one generator and one motor) and a planetary gear set for power splitting. This type has the most complex structure and control. Only a very few manufacturers have the capability to produce and manufacture this type of product, and there are certain patent barriers.
