| 摘要 |
In a speed change ratio controller of a continuously variable transmission, a speed change ratio varying mechanism which varies a speed change ratio and a speed change ratio servo device which controls this speed change ratio varying mechanism according to a signal from a microprocessor, are provided. The microprocessor sets a final speed change ratio according to the vehicle traveling conditions, and computes a deviation between the final speed change ratio and target speed change ratio. A target dynamic characteristic parameter of the speed change ratio is set according to this deviation, and the target speed change ratio and a command speed change ratio are computed based on the final speed change ratio and target dynamic characteristic parameter. By outputting the command speed change ratio obtained in this way as a signal to the speed change ratio servo device, high response speed change ratio control is achieved.
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