Method and apparatus for controlling speed-change transient mode

Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Transmission control

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701 58, F16H 5942, G06F 1700

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active

057522103

ABSTRACT:
An automatic transmission is controlled by the use of estimation of a disturbance so that an input shaft rotates as desired to suppress shock caused during a speed-change transient mode. The disturbance is estimated from an actual rotational speed of an input shaft of the automatic transmission and a control command value to a pressure regulating device based on a predetermined transfer function model. The disturbance may be estimated alternatively by the use of a speed change in the rotational speed of the input shaft.

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Hatta et al: "Development of Feedback-type Electronic Automatic Transmission", publication 901095 of Society of Automotive Technology, 1990-5--partial translation.

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