METHOD OF CONTROLLING A CONTINUOUSLY VARIABLE TRANSMISSION
A method for controlling a continuously variable ratio transmission is described. The method may include controlling a continuously variable ratio unit ("variator") having rotary input and output members through which the variator is coupled between an engine and a driven component, the va...
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Main Authors | , , |
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Format | Patent |
Language | English French German |
Published |
21.12.2005
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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Summary: | A method for controlling a continuously variable ratio transmission is described. The method may include controlling a continuously variable ratio unit ("variator") having rotary input and output members through which the variator is coupled between an engine and a driven component, the variator receiving a primary control signal and being constructed and arranged to exert upon its input and output members torques which correspond directly to the control signal. The method may also include determining a target engine acceleration, determining settings of the variator's primary control signal and of an engine torque control for providing the required engine acceleration and adjusting the control signal and/or the engine torque control based on these settings, predicting a consequent engine speed change, allowing for engine and/or transmission characteristics, and correcting the settings of the control signal and engine torque based on a comparison of actual and predicted engine speeds. |
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Bibliography: | Application Number: EP20040723989 |