What Causes the Car to Jerk During Gear Shifting in Subject Three?
2 Answers
It is normal for the car to experience some jerking sensation during gear shifting. Here is a partial introduction about car gears: P gear: Parking gear, starting gear. When the car is parked and not in use, it prevents the car from rolling when the wheels are mechanically locked. N gear: Neutral gear. Used for temporary parking (e.g., at a red light). This gear indicates neutral, and to prevent the car from rolling on a slope, the brake must be engaged. Operation steps: For automatic transmission cars, shift the lever to the corresponding gear. A manual-automatic transmission may not have as many gears; besides P, R, N (these three gears are essential for automatic cars), the forward gear is simply D gear (e.g., FAW Mazda 6), and the functions of other gears can be achieved through manual mode.
During the gear shifting in Subject 3, the car jerks, which I believe is mainly caused by the nervousness or lack of proficiency of new drivers. For example, when I was taking the test, I was always in a hurry to shift gears, and when I released the clutch too quickly, the engine speed couldn't keep up with the change in vehicle speed, causing the car to jerk uncomfortably for a moment. The instructor said that the common cause of jerking is the lack of coordination between the throttle and clutch—ease off the throttle before shifting, and then gently press the throttle while slowly releasing the clutch for a smooth transition. Another reason is improper speed control. If the gear and speed don't match, such as starting in a high gear or shifting to a higher gear at low speed, the engine load increases, making it prone to jerking. During practice, I need to rely more on feeling, less on staring at the dashboard, and use my foot to sense the clutch's semi-engagement point. Jerking not only affects passing the test but is also bad for the car, wearing out the clutch plates, so it's important to develop good habits when driving. It's recommended to start practicing with slow gear shifting to reduce nervousness.
