What does gear mismatch mean?
1 Answers
Gear mismatch refers to the inconsistency between the vehicle speed and the engaged gear. The general guideline is: use first gear for speeds under 10 km/h, second gear for 10-20 km/h, third gear for 20-30 km/h, fourth gear for 30-40 km/h, and fifth gear for speeds above 40-50 km/h. The impacts of gear and speed mismatch are as follows: 1. Increased component wear: While it may not cause immediate issues, prolonged mismatch can accelerate component wear and lead to premature damage to the engine and transmission. This depends on factors such as engine power output, matching conditions, and transmission design rationality. More gears generally mean a larger transmission, which also requires consideration of engine and engine bay layout. 2. Insufficient engine power: Most gear mismatches involve high gears at low speeds, which can easily cause engine power deficiency leading to stalling or engine strain resulting in vehicle vibration. 3. Transmission gears: In transmission gear systems, lower-numbered gears are called low gears. The smaller the number, the higher the gear ratio and traction force, but the lower the vehicle speed. For example, first gear provides the lowest speed but the highest traction. Higher-numbered gears are called high gears. The larger the number, the smaller the gear ratio and traction force, but the higher the vehicle speed. In a five-speed transmission, fifth gear offers the highest speed but the smallest traction.
