What Components Make Up a Lock-Up Clutch?

[DeClara]

A lock-up clutch consists of components such as the lock-up piston, damper plate, and turbine drive plate. The lock-up piston and damper plate are connected via splines, allowing for forward and backward movement. The damper plate and turbine drive plate are linked by damping springs, which help attenuate torsional vibrations during clutch engagement. The turbine drive plate is secured to the front of the turbine with rivets, while the front surface of the torque converter housing is lined with friction material. The working principle of the lock-up clutch involves its engagement and disengagement being controlled by the electronic control unit through a lock-up solenoid valve. When the vehicle starts or travels on poor road surfaces, the lock-up clutch can be disengaged to allow the torque converter to function, fully leveraging the advantage of hydraulic transmission's automatic adaptation to drastic changes in driving resistance. Conversely, when the vehicle is driven on good road surfaces, the lock-up clutch should be engaged to create a rigid connection between the torque converter's input and output shafts, effectively converting to direct mechanical transmission.