What is the range of gear speed matching?
2 Answers
The allowable range for first gear is 0~15, second gear is 15~25, third gear is 25~35, fourth gear is 35~40, and fifth gear is 65 km/h and above. Each gear serves a different purpose. First gear is the starting gear, and you should shift up gradually from low to high. Related introduction: 1. Semi-automatic transmission: It is called a semi-automatic controlled transmission. 2. Semi-automatic transmission classification: One type is the automatic control of several commonly used gears, while the remaining gears are controlled by the driver; the other type is pre-selective, where the driver pre-selects the gear with a button, and when the clutch pedal is depressed or the accelerator pedal is released, an electromagnetic or hydraulic device is activated to perform the gear shift.
Regarding the range of gear speed matching, I think this is a crucial point. When you shift gears in a manual transmission car, gear speed matching refers to synchronizing the engine speed with the required speed of the next gear. For example, shifting from second to third gear usually requires adjusting the RPM to around 2500. This range typically falls between 1500-4000 RPM, depending on your car's displacement and gear ratio design. Smaller cars may operate within 2000-3000 RPM, while high-displacement vehicles may require higher ranges. As an average car owner, I believe this matching directly affects driving smoothness and fuel consumption. Incorrect matching can cause jerking or even damage the clutch plate. I always rely on listening to the engine sound and practicing throttle control to find the optimal point, as the actual range varies with road conditions—for instance, higher matching RPM is needed during highway driving to ensure power continuity. Overall, it’s not a fixed numerical range but a dynamic practical skill adjusted based on experience and vehicle characteristics.