Briefly describe the principle of gear shifting in a transmission
1 Answers
Principle: By shifting the gear lever, the driving gears on the intermediate shaft are switched, and through different combinations of gear sizes meshing with the power output shaft, the torque and speed of the driving wheels are altered. Below are the related introductions: 1. Changing the transmission ratio: Adjusting the transmission ratio expands the range of torque and speed variations of the driving wheels to adapt to frequently changing driving conditions. While maintaining the same rotation direction of the car engine, reverse gear is used to enable the vehicle to move backward. 2. Interrupting power transmission: With the engine still running, neutral gear is used to interrupt power transmission, facilitating engine start-up, warm-up, idling, and making it easier to shift gears or for the car to coast or temporarily stop. 3. Power output: The engine's power is output through the transmission to drive other mechanisms, such as the winch on certain vehicles or the oil pump of a dump truck.