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What does the B gear in new energy vehicles mean?

4 Answers
SanPaige
07/30/25 12:14am
New energy vehicle B gear is an auxiliary braking gear. The following are specific introductions about B gear: Function: The purpose of the B gear in new energy vehicles is to apply engine braking or strong braking after releasing the accelerator pedal on a steep downward slope, thereby preventing brake overheating. Of course, acceleration can still be performed during this process. However, when driving at high speeds, compared to conventional vehicles, you may feel that the deceleration caused by engine braking is relatively small. Usage: Whether the car is in B gear or D gear, it belongs to the category of low kinetic energy recovery ratio. Secondly, if you drive the car in B gear for a long time, it will have a significant impact on the vehicle's fuel economy.
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OKarter
08/16/25 4:25am
I've been driving this car for several years. The B gear in new energy vehicles stands for Braking mode, meaning that when engaged, releasing the accelerator will make the car decelerate faster, like lightly pressing the brake. I often use it on mountain roads or downhill to prevent the car from speeding out of control, and it also recycles energy to charge the battery, extending the range. I also switch to B gear during traffic jams to avoid frequent braking, reducing wear. However, remember not to use it too often on highways because the strong deceleration can make long drives tiring. The principle of B gear is the motor working in reverse for braking, similar to low gear in fuel cars but smarter and more efficient. Overall, it's practical and energy-saving, making driving safer. I've developed a habit of switching to B gear whenever I encounter steep slopes, maintaining steady control over speed.
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VanLucia
10/19/25 6:48am
The B gear is a distinctive feature of new energy vehicles, representing the braking or energy recovery mode. When engaged, releasing the accelerator results in stronger automatic deceleration, allowing kinetic energy to be recovered and stored in the battery. I primarily use it when driving downhill to prevent insufficient braking and to save brake pads. The principle involves using the motor's reverse drag to achieve an effect similar to engine braking. I've tested it on continuous downhill slopes and found that using the B gear can recover 5%-10% of the battery's charge, directly increasing the driving range. In daily city driving, especially in congested areas, the B gear helps control speed without panic, but caution is advised on slippery surfaces. Beginners are recommended to practice the operation first, as gear switching is simple and doesn't interfere with other driving functions. This feature makes new energy vehicles more energy-efficient and environmentally friendly, making daily driving much more convenient.
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LeilaniFitz
12/02/25 7:22am
The B gear on my electric car stands for Brake Assist Mode. When engaged and the accelerator is released, the vehicle decelerates rapidly. It's primarily used for speed control on slopes. Beginner-friendly, simple and easy to use, it reduces the need for brake operations. It's safe and reliable for preventing excessive speed when going downhill. The B gear also helps recharge the battery, practical without being complicated. Remember to use it only in specific road conditions.
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