In 1992, Lepelletier proposed three degrees of freedom epicyclic gear mechanisms.[1] These are now called Lepelletier gear mechanisms.[2] The Lepelletier gearbox is constructed by connecting a planetary gear to a Ravigneaux gear.[3]
- ^ P. A. G. Lepelletier, Multispeed automatic transmission for automobile vehicles, U. S. patent no. 5106352 (1992).
- ^ Essam L. Esmail (2016-01-13). "Configuration design of ten-speed automatic transmissions with twelve-link three-DOF Lepelletier gear mechanism". Journal of Mechanical Science and Technology. 30: 211–220. doi:10.1007/s12206-015-1225-4.
- ^ "Model seven-speed Lepelletier transmission based on planetary gear and Ravigneaux gear - MATLAB - MathWorks Australia". Au.mathworks.com. Retrieved 2016-03-08.