The initial automotive software on the lock-up principle was Packard's Ultramatic transmission, introduced in 1949, which locked up the converter at cruising speeds, unlocking once the throttle was floored for fast acceleration or because the car or truck slowed. The friction content used around the lock−up piston is the same https://torque-converter-clutch20741.tinyblogging.com/the-smart-trick-of-torque-converter-clutch-that-no-one-is-discussing-77662446