Automatic transmissions and methods therefor

摘要: Systems and methods for controlling transmissions associated vehicles, machines, equipment, etc., are disclosed. In one case, a transmission control system includes unit configured to use sensed vehicle speed commanded, target constant input maintain an substantially constant. The or more maps that associate ratio of with speed. embodiment, such map associates encoder position Regarding specific application, automatic bicycle shifting is contemplated. An exemplary unit, shift actuator, various sensors, user interface. cooperate logic module actuator controller the cadence rider. memory of, in communication with, ratios speeds.