What is the working principle of hybrid electric power?
2 Answers
There are three working principles for hybrid electric vehicles: 1. Parallel mode: The engine serves as the main power source, while the motor acts as an auxiliary power source. This method primarily relies on the engine for driving, utilizing the motor's strong power characteristics during restart. 2. Low-speed motor-only driving: At low speeds, the motor drives the vehicle, and as speed increases, the engine and motor operate in a 'series-parallel mode' for efficient power sharing. This approach requires power-sharing devices and generators, resulting in a complex structure. 3. Series mode: The engine functions solely as a power source, with the vehicle being driven by the motor. The drive system consists of only a motor. However, since it still requires a fuel engine, it is also classified as a hybrid vehicle.
As a hybrid vehicle owner, I've personally experienced how it works. The system combines a gasoline engine with an electric motor, and the computer automatically switches between power sources while driving: pure electric drive at low speeds or startup, which is quiet and efficient; the engine kicks in during acceleration or high-speed driving to provide additional power, with seamless and imperceptible transitions. The best part is the kinetic energy recovery during braking, which converts energy into electricity stored in the battery, reducing waste and extending range. My car doesn't require external charging; the battery is charged by the engine or through energy recovery, making daily commutes fuel-efficient and eco-friendly. It particularly shines in city traffic jams, where electric drive dominates, resulting in much lower fuel costs compared to traditional cars; on long highway trips, the engine operates efficiently. The core of its operation lies in the energy management system, optimizing fuel consumption and emissions—simply put, it's smart energy use that saves money and protects the environment.
