T. Garrett, K. Newton, W. Steeds
Journal name not available for this finding
This chapter discusses semi-automatic gearboxes and continuously variable transmissions Under the semi-automatic gearboxes, the chapter explains the design, layout, and working of the AP semi-automatic gearbox and the AP hot-shift automatic gearbox. The chapter also illustrates the procedure of calculation of gear ratios for the two types, for each gear—first, second, third, fourth, fifth, and the reverse gear. The working of brakes and clutches in these gearboxes is also explained with diagrams. The continuously variable transmissions, that is, a transmission that can change steplessly through an infinite number of effective gear ratios between maximum and minimum are then described. In this context, the chapter takes a look at the Ricardo ALT automatic transmission, the Alfa Romeo Selespeed transmission, Van Doorne Variomatic and Transmatic transmissions, Maxwell automatic transmission, and Leyland continuously variable transmission. The applications of these continuously transmissions is illustrated using examples of various automobile companies, such as Ford, Fiat, Leyland, and Nissan.