The control of the oil stress within the lock-up clutch is finished through two valves: the relay valve as well as sign valve. In this type of arrangement the sign valve controls the strain on a single facet of the relay valve, which controls the pressure from the lock-up clutch. https://torqueconverterclutch86283.tusblogos.com/34504782/what-does-torque-converter-clutch-mean