What are the techniques for shifting gears without depressing the clutch?

[McKeira]

Here are the detailed techniques for shifting gears without depressing the clutch: 1. The sequence for upshifting is to release the throttle, disengage the gear, wait for the engine speed to drop, and then engage the higher gear. 2. The sequence for downshifting is to release the throttle, disengage the gear, rev the throttle to increase engine speed, and then engage the lower gear. Below is the working principle of the clutch: 1. When the inner race is fixed, the outer race rotates clockwise and the wedge block does not lock, allowing the outer race to rotate freely. 2. When the outer race rotates counterclockwise, the wedge block locks, preventing the outer race from rotating. The functions of the clutch include: 1. Gradually increasing the driving force of the car to ensure a smooth start. 2. Temporarily separating the engine and transmission for gear shifting. 3. Preventing overload in the transmission system. 4. Reducing torsional vibration and impact from the engine, thereby extending the service life of the transmission gears.