What is a Sequential Transmission?
1 Answers
Sequential transmission refers to a manual gearbox that shifts gears in a sequential order. Its input shaft is directly connected to the engine, eliminating redundant gear-shifting transmission structures, making its design simpler, more compact, and faster in shifting with reduced chances of mis-shifting. Differences between sequential and manual transmissions: Nature: The sequential transmission differs from a regular manual transmission primarily in its operation method—shifting up or down is achieved simply by pushing or pulling the gear lever forward or backward. In contrast, a manual transmission requires manually moving the gear lever to change the gear engagement positions inside the transmission, altering the gear ratio to achieve speed changes. Features: The existence of a manual transmission is determined by the physical characteristics of the engine, as every engine has its peak RPM. Additionally, the engine's maximum power and torque occur within a specific RPM range. In a sequential transmission, all shifting operations can be entirely controlled by a computer, allowing the driver to complete gear shifts effortlessly without using the clutch pedal, even in 'S' mode, where all that's needed is to push or pull the gear lever. Operational Setup: In a sequential transmission, the combination of a shift drum and straight-cut gears enables trained drivers to switch gears without operating the clutch pedal. In a manual transmission, the gears (blue) rotate freely on the splined shaft. When the engine is off but the vehicle is still moving, both the gears (blue) and the countershaft remain stationary, while the splined shaft continues to rotate with the wheels.