Transmission control with a fuzzy logic controller

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36442405, 395905, 477125, 477902, B60K 4106, B60K 3104

Patent

active

053901177

ABSTRACT:
A control for a motor vehicle transmission automatically shifts transmission gears as a function of at least a driving pedal position and vehicle speed on the basis of shifting performance graphs stored in memory, and takes a load state of the motor vehicle and the driving style of the driver into account. A fuzzy logic controller with a rule base evaluates various signals characterizing driving states of the motor vehicle, and thereupon generates the following control signals: a first correcting signal characterizing the load state of the motor vehicle, and a second correcting signal characterizing the driving style, bringing about a switchover to corresponding shifting performance graphs; and an inhibit signal preventing shifting events that would produce a dynamically unfavorable driving state.

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"A Method of Predicting the Driving Environment From the Driver's Operational Inputs", Takahashi, pp. 203-204, No Date.
"Fuzzy Control--eine Einfuhring ins Unscharfe", Dirk Abel, Automatisierungstechnik 39, 1991, pp. 433-438, Dec. 1991.

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