What causes severe jerking when starting the Roewe RX5?

[LeBrynlee]

The reasons for car jerking are as follows: 1. RPM mismatch: The jerking occurs because the engine speed is not synchronized with the clutch plate speed. 2. Sudden acceleration or acceleration after braking: These two situations are most likely to cause jerking. The computer's shifting logic analyzes the driver's throttle input. Normally, when the driver gradually presses the accelerator, the computer's default logic only requires upshifting to complete the acceleration. However, due to excessive force, the clutch realizes during upshifting that a downshift is needed to fulfill the intention of sudden acceleration, and immediately initiates a downshift. During this back-and-forth process, power cannot be transmitted smoothly, leading to jerking.