What is the purpose of the B gear in the Toyota Levin?
2 Answers
It is a unique energy recovery gear exclusive to Toyota's hybrid models. After shifting into this gear, the decelerator increases resistance, making it noticeably more difficult to coast when releasing the accelerator. This generates more electricity to be delivered to the power battery. That is the specific function, and it has virtually no impact on the mechanical aspects. Here is some additional information: The use of B gear: The B gear is actually a safety gear designed for long downhill slopes. It should only be used when the car is going down a long slope or a continuous downhill. By utilizing engine braking, it enhances safety and prevents situations where frequent braking by the driver could lead to brake failure.
When driving the Leiling Hybrid, I found that the B gear is mainly used for downhill driving. When encountering long descents or mountain roads, engaging the B gear allows the engine to assist with braking, causing the car to slow down on its own without needing to constantly press the brake pedal. I often use it on mountain roads, especially during those several-kilometer-long continuous descents—it keeps my foot from being constantly tense and prevents the brake pads from overheating easily. On flat roads, it's better not to use the B gear because engine braking consumes slightly more fuel. Energy regeneration also becomes more active, allowing the battery to charge more. I think this design is quite practical, specifically addressing the challenge of downhill driving.
