What is the principle of car gear shifting?
1 Answers
The principle of car gear shifting is achieved by changing the transmission gears. There are gears of different speeds on the tire rotation shaft. When the engine speed remains unchanged, if gears of different speeds are engaged with the engine, the circumferential speed obtained by the larger gear will be less than that of the smaller gear. In low gear, the gear is larger, and the engine drives a larger radius with a smaller radius, allowing the car to obtain greater driving force. In high gear, the engine drives a smaller radius with a faster circumferential speed, resulting in less driving force. The gearbox is essentially a gearbox containing many gears. The driving gear (connected to the engine via the main clutch) receives power from the engine to drive the driven gear (connected to the wheels via the main reducer and drive shaft), thereby driving the rotation of the wheels. Each gear has a pair of driving and driven gears. Engaging a specific gear means that particular pair of gears is combined to transmit power. As the gearbox shifts to higher gears, the transmission ratio continuously decreases. By fifth gear, it is generally less than 1, meaning the output speed of the gearbox is higher than the engine speed. The output speed of the gearbox is directly proportional to the vehicle speed. Therefore, lower gears provide greater power but lower speed (under a certain engine speed), while higher gears offer less power but higher speed.
