Why Does Dual Clutch Transmission Experience Jerking?

[ElianaDella]

There are two main reasons why dual clutch transmissions experience jerking: 1. Large gear ratio differences in low gears. 2. Mechanical structure limitations of dual clutch and shift logic issues. Below is a detailed description of the causes of dual clutch jerking: 1. Due to mechanical structure limitations and shift logic, the transmission control unit (TCU) determines shift patterns based on the driver's throttle input. 2. Normally, when the driver gradually presses the accelerator, the TCU's default logic assumes upshifting alone can achieve acceleration. 3. However, when greater power is suddenly required (e.g., uphill acceleration), the clutch discovers during upshifting that a downshift is actually needed to accomplish this urgent acceleration demand. 4. The system then immediately initiates a downshift, creating a back-and-forth transition period where power cannot be smoothly transmitted, resulting in jerking. 5. Simply put, the TCU's logic fails to accurately predict driving intentions, causing unsmooth power delivery that manifests as jerking.