Patent ID: 8442731

Claim:
A control system for an electronically controlled continuously variable transmission located between a driving source, and a driving wheel of a vehicle, the vehicle including a mode changing switch for outputting a mode change signal, the control system comprising: a gear ratio control section for controlling a gear ratio of the transmission; a gear change mode selecting section for selecting an AT mode in which the gear ratio control section changes the gear ratio continuously or an MT mode, including an MT shift down mode that enables shift down and disables shift up, in which the gear ratio control section changes the gear ratio among a plurality of predetermined gear ratios in accordance with a driving state of the vehicle; a release signal outputting section for outputting a release signal in a case where a predetermined operation is made to the vehicle or in a case where a predetermined condition is satisfied in connection with the vehicle; an MT shift down mode selecting section for making the gear change mode selecting section select the MT shift down mode when the mode change signal was inputted in the AT mode selected by the gear change mode selecting section and, at the same time, for making the gear ratio control section change the gear ratio to one of the gear ratios from among the plurality of the predetermined gear ratios that is lower than a current gear ratio; and an AT mode returning section for returning the gear change mode selected by the gear change mode selecting section to the AT mode when the release signal is outputted after the MT shift down mode is selected by the MT shift down mode selecting section.