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What are the four modes of BYD DMi?

2 Answers

AndrewLee

09/02/25 5:24am

Here is an introduction to the four modes of BYD DMi: Pure Electric + Economy Mode: The engine is not used, and the vehicle runs on electricity. The controller slowly increases the current to the motor. Pure Electric + Sport Mode: The engine is not used. The controller directly supplies the motor with maximum current. Hybrid + Economy Mode: The engine is not used when the speed is below 40KM and the battery level is above 15%. When the speed exceeds 40KM, the engine automatically starts, providing only 10% of the power. The controller slowly increases the current to the motor to charge the battery. If the speed is below 40KM and the battery level drops below 15%, the engine will also start but does not provide power to the vehicle, idling to charge the battery. If the speed never exceeds 40KM, the engine will automatically shut off once the battery is charged above 25%. Hybrid + Sport Mode: The engine operates like that of a conventional car and can only be started or stopped manually. The engine delivers 100% of its power to the wheels, and the motor also operates at maximum power.

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EmersonMarie

09/14/25 7:30am

As a tech enthusiast, I'm fascinated by BYD's DM-i system. It features four intelligent modes: EV Pure Electric mode relies solely on the electric motor, ideal for zero-emission short urban trips; HEV Series mode uses the engine as a generator to power the electric motor, maintaining high energy efficiency; HEV Parallel mode combines engine and motor power for rapid acceleration response; and Engine Direct Drive mode directly powers the wheels for optimal fuel economy during highway cruising. These modes automatically switch via advanced algorithms to optimize energy consumption and performance in real-time, while the battery management system ensures durability. During my test drive, the transitions felt seamless and efficient. In summary, this design combines the quietness of electric vehicles with the range advantages of traditional cars, making it equally capable for daily commutes or long-distance travel.

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