VARIABLE CONTROL TRANSMISSION

摘要

A variable transmission system (100) includes an input gear (102) that is adapted to engage with a flywheel of a vehicle. The input gear includes a sun gear (112) and plural planet gears (110). The input gear is coupled to an output shaft (108) through the sun gear. The output shaft is selectively coupled to a vehicle differential by a selector section (106). The gear ratio determined by the input gear is controlled by a variable control unit (104). The variable control unit determines whether and the extent the planet gears revolve around the sun gear and rotate on their own axes. The variable control unit operates as a function of engine speed.