Shift control for a continuously variable transmission

Abstract

Shift control (1) for a continuously variable transmission (30), comprising: - a downhill control module (41) that performs downhill control by correcting the gear ratio of the continuously variable transmission (30) to a lower gear ratio during downhill travel; - a detector (71) that detects a braking operation by the driver; - a brake downshift control module (42) that, upon detection of a braking operation causing sudden deceleration, performs a brake downshift control to change the gear ratio by downshifting depending on the gear ratio and the deceleration;and a gear ratio holding module (43) which, upon detection of a braking operation that does not cause sudden deceleration by the detector (71), while the downhill control module (41) is performing downhill control, maintains the gear ratio at the time of the start of the braking operation, wherein, in the case where the brake downshift control is performed by the brake downshift control module (42), the gear ratio holding module (43) maintains the gear ratio at the gear ratio at the time of termination of the brake downshift control.

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