F - Mech Eng,Light,Heat,Weapons – 16 – H
Patent
F - Mech Eng,Light,Heat,Weapons
16
H
F16H 61/02 (2006.01) F16H 59/08 (2006.01) F16H 61/00 (2006.01) B60K 41/06 (1990.01)
Patent
CA 2135626
-40- A CONTROL SYSTEM FOR CHANGING AUTOMATIC GEARS ABSTRACT OF THE DISCLOSURE The invention concerns a control system (10) for changing automatic gears (3) that operates according to fuzzy logic methods. All the fuzzy-production rules are divided into at least three sections: a set of basic rules to determine the gear-changing point in a consumption-oriented driving style, a set of adaptation rules to modify the set of basic rules depending on a current driving style and an identification set of rules for classifying the driver according to his/her driving style. By way of a supplementary set of adaptation rules the set of basic rules can be additionally modified according to a current driving condition. Individual function blocks (11 to 15) operate preferably according to the same inference mechanism. Gamma operators are used in order to approximate as closely as possible human behavior. A process is proposed for generating membership functions to determine a running condition by fuzzy- production rules. In a preferred embodiment the adaptive gear-changing behavior is activated by forming offsets. Priorities are allotted to the rules especially for reasons of safety and reliability.
Danz Wolfgang
Eschrich Gerhard
Gillich Udo
Runge Wolfgang
Swabey Ogilvy Renault
Zf Friedrichshafen Ag
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