What is the principle of car gear shifting?

[LaCecilia]

The principle of car gear shifting is achieved by changing the transmission gears. The tire drive shaft has gears for different gear positions. When the engine speed remains constant, engaging gears of different sizes with the engine results in the larger gear obtaining a lower circumferential speed than the smaller gear. According to the knowledge of torque, in high gear, the engine drives a smaller radius, resulting in higher car speed but smaller torque, meaning less driving force. Car gear shifting essentially changes the transmission gears. Precautions for car gear shifting: 1. Timely: Master the appropriate timing for gear shifting; 2. Accurate: The position must be precise; 3. Smooth: Release the clutch pedal promptly and smoothly; 4. Swift: The action should be quick to shorten the gear shifting time, reduce the loss of car kinetic energy, and lower fuel consumption.