Chủ đề tương tự
Ngày đăng:
Các bác đừng hỏi vì sao mà em rãnh nha.E cũng thấy lạ nên lên net tìm được vài thông tin như sau, "B" có chức năng tương tự như L hoặc D1, D2. trình độ tiếng Anh của e về mấy cái từ "kỹ thực" không tốt lắm nên chỉ biết vậy, các bác chém tiếp nha.
"Brake (B): A mode selectable on some Toyota models. In non-hybrid cars, this mode lets the engine do compression braking, also known as engine braking, typically when encountering a steep downhill. Instead of engaging the brakes, the engine in a non-hybrid car switches to a lower gear and slows down the spinning tires. The engine holds the car back, instead of the brakes slowing it down. GM called this "HR" ("hill retarder") and "GR" ("grade retarder") in the 1950s. For hybrid cars, this mode converts the electric motor into a generator for the battery (Regenerative Braking). It is not the same as downshifting in a non-hybrid car, but it has the same effect in slowing the car without using the brakes.
Some automatic transmissions modified or designed specifically for drag racing may also incorporate a transmission brake, or "trans-brake," as part of a manual valve body. Activated by electrical solenoid control, a trans-brake simultaneously engages the first and reverse gears, locking the transmission and preventing the input shaft from turning. This allows the driver of the car to raise the engine RPM against the resistance of the torque converter, then launch the car by simply releasing the trans-brake switch."
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