How to Solve the Jerking Issue During Dual-Clutch Transmission Startup?
1 Answers
Here are solutions for addressing jerking during dual-clutch transmission startup: 1. Large difference between engine output speed and transmission output speed: Similar to manual transmissions, dual-clutch transmissions also have a semi-engaged state during power transfer to reduce clutch plate wear. Engineers design the clutch pressure plate and friction disc to engage quickly. If there's a significant speed difference between engine and transmission outputs, jerking may occur. Dry dual-clutch transmissions use mechanical control arms and sleeves to deform diaphragm springs. Structurally, they offer higher transmission efficiency. After optimization with hydraulic systems, they can better filter vibrations, further reducing jerking. 2. Jerking during low-speed gear shifts: Some drivers may notice differences in transmission performance between "cold" and "warm" states at the same speed ranges. This phenomenon isn't unique to dual-clutch transmissions but also occurs in AT and CVT automatic transmissions. 3. Vehicle driving smoothness: Driving smoothness is also related to the engine. Torque response speed is one factor affecting driving feel. Additionally, powertrain mounting design influences the driver's perception of smoothness. Therefore, optimizing powertrain smoothness is a far more complex engineering challenge than one might imagine.