The main automotive software in the lock-up basic principle was Packard's Ultramatic transmission, released in 1949, which locked up the converter at cruising speeds, unlocking when the throttle was floored for rapid acceleration or as being the motor vehicle slowed. Torque converter equations of movement are governed by Leonhard Euler's https://torque-converter-clutch90233.loginblogin.com/41316751/the-definitive-guide-to-torque-converter-clutch