What is the Principle of Pure Electric Vehicles?

[AliceFitz]

Pure electric vehicles operate on the principle that the driver controls the electronic accelerator pedal, sending analog electronic signals to the controller or processor. The controller or processor then processes these signals to regulate the motor's output power, speed, and direction of rotation. A pure electric vehicle is defined as a vehicle powered by an onboard power source, using an electric motor to drive the wheels, and meeting all road traffic and safety regulations. It consists of an electric drive and control system, along with a drivetrain mechanical system. The maintenance methods for pure electric vehicles include: 1. Inspecting the vehicle's paint for damage, the functionality of lights, the wear level of wiper blades, and tire wear and pressure; 2. Replacing the cabin air filter; 3. Checking and replenishing coolant, brake fluid, and windshield washer fluid; 4. Inspecting the power system's connectors and the insulation protection of wiring.

[Alfie]

I've been driving a pure electric vehicle for a while, and its working principle is quite simple: there's a large battery at the bottom of the car that stores electrical energy. When you press the accelerator pedal, the controller acts like a brain, directing electricity from the battery to the motor. The motor then rotates to directly drive the wheels and propel the car forward. The entire system is very quiet, with smooth acceleration from a standstill, unlike gasoline cars that vibrate or make a lot of noise. Charging is also convenient—just plug it into a home socket at night or use a charging station, and it's ready in a few hours. Daily commuting costs are low and environmentally friendly. The only thing to watch out for is battery maintenance—avoid leaving it at full charge or completely discharged for long periods to prevent shortening its lifespan. In winter, the range may decrease slightly in low temperatures, but regular checks can ensure it lasts longer. I really like this design—it eliminates the engine and transmission, making maintenance simpler. Upkeep mainly involves changing tires and checking brakes and such.

[LaJeffrey]

As a car enthusiast, the principle of pure electric vehicles is quite cool from a technical perspective: lithium-ion battery packs supply power, inverters convert DC to AC to power high-performance motors that drive the wheels. The entire process is efficient and silent, with an energy conversion rate exceeding 85%, far superior to gasoline-powered cars. During braking, energy can even be recovered, with the motor acting as a generator to recharge the battery and save electricity. Among the key components, the battery management system monitors temperature and voltage to prevent overheating and over-discharge, ensuring safety and longevity. Having experienced various models, ternary lithium batteries offer high energy density but at a higher cost, while lithium iron phosphate batteries are safer and more durable—all of which impact range and driving experience, requiring a balance between needs and budget when choosing a car.

[SophiaRose]

Pure electric vehicles use batteries to power the motor for driving, with no exhaust emissions, making them more environmentally friendly. After switching to one, the air feels much fresher. The principle is converting electrical energy directly into driving force to propel the car, and the cost is lower—electricity bills are significantly cheaper than fuel costs, making it more economical in the long run. Charging is convenient, whether at home in the garage or at public charging points, and supports fast home charging, reaching 80% in just half an hour. The only minor drawback is the limited range—new models can last up to 500 kilometers, but long trips require planning for charging stations to avoid running out of power midway.