Yamaguchi, T. and Tanaka, K., "Transient Flow Field Analysis Around a Lockup Clutch Inside a Torque Converter," SAE Technical Paper 2012-01-2001, 2012, doi:10.4271/2012-01-2001.
The purpose of this paper is to study the flow field of a lockup clutch inside a torque converter. The performance of a torque converter has been one of the most important areas of improvement for an automobile equipped with an automatic transmission. Improving the torque converter's performance and efficiency are key contributions to saving fuel, which is an important consideration with the recent increase in environmental awareness. Moreover, the lockup operation- or slipping control- of an automatic transmission is another good opportunity for improving fuel economy.