Apparatus and method for learning gear ratio control of CVT transmissions

摘要

An apparatus for learning a gear ratio control of a continuously variable transmission (CVT) may include: an Acceleration Position Sensor (APS) configured to detect a change of an accelerator pedal in a vehicle having a CVT a gear ratio detector configured to detect a pulley transmission ratio of the CVT, a timer arranged to measure the time during which the gear ratio learning learning is performed during the power-off upshift of the CVT, and a controller configured to receive the values detected via the APS, the gear ratio detector and the timer, and to control the CVT to make gears at a desired gear ratio w learned via the gear ratio learning While the power-off upshift switches while sailing.