The Lotus CVT and Evolution of the Smart Transmission Concept

Paper #:
  • 922106

Published:
  • 1992-09-01
Citation:
Thompson, A. and Lipman, J., "The Lotus CVT and Evolution of the Smart Transmission Concept," SAE Technical Paper 922106, 1992, https://doi.org/10.4271/922106.
Pages:
11
Abstract:
This paper describes the process that redirected research effort from continuously variable transmissions (CVT's) to Smart Transmissions, the electronic control of a conventional manual gearbox. Initially work was carried out on theoretical and existing CVT's, and culminated in the proposal for a system that might solve some of the practical limitations. Following further simulation work comparing the CVT against an intelligently shifted 7 speed gearbox, it was concluded that the Smart Transmission could closely match the CVT for performance and fuel consumption. This meant original targets set by using a CVT could now be met without having to develop new transmission technology. At this point research effort was changed to developing this type of electronically controlled gearbox.
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