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What does energy recovery in new energy vehicles mean?

2 Answers

MacSamantha

07/30/25 1:17am

Energy recovery in new energy vehicles is essentially the "engine braking" of these vehicles, which helps to decelerate the car during coasting and braking. The principle of energy recovery: The device for energy recovery is actually an electric motor. In middle and high school, we learned the principle of electric motors: a current-carrying conductor in a magnetic field experiences an Ampere force. The stator outside the motor generates a magnetic field, and when the rotor, composed of closed coils, is energized, an Ampere force is produced, causing the rotor to rotate. Electromagnetic induction law: Conversely, if the closed-coil rotor is rotated by an external force, it cuts through the magnetic field lines generated by the stator, inducing an electric current within the rotor coils. This phenomenon, discovered by Faraday, is known as the law of electromagnetic induction.

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Lima

08/15/25 6:54am

I frequently drive new energy vehicles and pay special attention to their technical details. Simply put, energy recovery converts kinetic energy into electrical energy stored back in the battery during braking or deceleration. When you press the brake or release the accelerator, and the car slows down, the kinetic energy is converted into electricity through the motor's reverse operation, avoiding the wasteful energy loss seen in traditional vehicles. This not only extends the driving range—especially noticeable in stop-and-go city traffic—but also reduces brake pad wear, protecting the braking system. I think this design is truly ingenious, originating from racing technology and now widely adopted in civilian vehicles, enhancing overall efficiency. From what I understand, the recovery efficiency can reach up to 70%, significantly reducing the frequency and duration of charging. For example, in electric vehicles like Tesla, strong recovery mode enables more powerful energy regeneration, making driving smoother and more comfortable. Overall, this system is both eco-friendly and practical, serving as one of the core advantages of new energy vehicles.

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