Patent ID: 7811199
Filing Date: 2010-10-12
Classification: F16H,Y10T

Abstract:
1. A method of operating an multispeed automatic transmission of a motor vehicle for at least one of torque transmission and power transmission in which the automatic transmission has a plurality of shifting elements, and for each of a plurality of forward gears and for reverse gear, a first number of the plurality of shifting elements are engaged and a second number of the plurality of shifting elements are disengaged, and at least one of a successive upshift and a successive downshift, for improvement of a shift speed, are implemented in an overlapped manner such that during one of a first upshift and a first downshift, preparing at least one shifting element, necessary for a successive second upshift and a successive second downshift, during the first upshift or the first downshift in such manner that, upon attaining a synchronous point of the first upshift or the first downshift, the successive upshift or the successive downshift is capable of being preformed immediately and, depending on a desired gear change, a multiple shift is implemented as the first upshift or the first downshift from a current gear to a desired gear, and executing a single shift as the first upshift or the first downshift only when a gear change between two immediately successive desired gears is to be implemented.