Voith Turbo Gmbh Co. Kg

Thomas Sch&ouml;nharr

Bernd Dietzel

Herbert Depping

The invention relates to a method for early recognition of abnormal occurrences in the operation of automatic or automated gearboxes wherein at least one variable A directly or indirectly characterizing the strain on elements which are to be coupled to each other in a non-positive fit is continuously determined after an n-th shift at least until a synchronous rev speed is reached or during a maximum shift period T ; wherein the variable A characterizing the strain on the elements that are to be coupled is mathematically combined with the time, or if several variables A Exist, said variables are mathematically combined with each other and the product of said combination is added up in the form of a variable W ; wherein the product thereof is compared with a first pre-definable or defined threshold value W Which, if exceeded, defines a state from which damage can be deduced and the shift action is aborted.

Growing community of inventors

Steinheim, Germany

Thomas Schönharr

Growing community of inventors

Steinheim, Germany

Thomas Sch&ouml;nharr

Thomas Schönharr