Torque converter lock-up clutch, automatic transmission 01M
Purpose:
* Reduces slip losses between the pump and torque converter turbine when driving at high speed, which improves fuel efficiency and reduces heat generation.
Design:
The torque converter lock-up clutch of the automatic transmission 01M consists of the following main components:
* Friction disc: Associated with the torque converter turbine.
* Steel disc: Associated with the torque converter pump.
*Spring: Provides clamping pressure to engage the friction and steel discs.
*Control Ring: Controlled by an electromagnet and engages/releases the lock-up clutch.
Job:
The torque converter lock-up clutch works as follows:
1. When the vehicle is under high speed and friction loads, an electromagnet (commonly called a solenoid) activates the control ring.
2. The control ring moves the piston, which in turn presses the spring.
3. The spring presses the friction and steel discs together, creating a mechanical connection between the pump and turbine.
4. When a shift or speed change becomes necessary, the solenoid is turned off, the control ring returns to its original position, the spring relaxes, and the friction and steel plates separate, resuming slippage in the torque converter.
Advantages:
* Increased fuel efficiency
* Reduced heat generation
* Improved acceleration time
* Reduced torque converter wear
Malfunctions:
Common malfunctions of the 01M automatic transmission torque converter lock-up clutch include:
* Friction disc wear
* Damage to the control ring
* Solenoid failure
*Mechanical problems with spring or piston
If you experience any symptoms of trouble, such as excessive slippage, vibration or loss of power, it is recommended that you contact a qualified mechanic for diagnosis and repair.