Abstract: A shift control strategy is disclosed whereby a timing at which the states of shift solenoids are switched is determined based on an actual revolution speed ratio, namely a ratio of revoltion speed of an input shaft of a gear train to a revolution speed of an output shaft thereof, and a predetermined data containing various revolution speed ratio values versus kinds of shift and throttle opening degrees.

Abstract: A method for increasing the production or manufacturing yield of a product by the application of mathematical modeling techniques on the statistical distributions of major components of the product to maximize the production yield thereof. The product is assembled from a plurality of components, each of which is produced in multiple different manufacturing lots. Initially, the statistical characteristics of significant performance specifications of each major component used in the assembly of the product are established for each manufacturing lot of that component. The statistically probable performance of the product assembled with different combinations of components from different manufacturing lots is evaluated to assess the performance sensitivity of the assembled product to different combinations of the components from different manufacturing lots.

Abstract: A circuit configuration for automotive vehicles with traction slip control, by which traction slip control signals are derived from sensor signals of the driven and the non-driven wheels. Circuits for detecting roadway obstructions and for suppressing control actions in consequence of these roadway obstructions, disable the traction slip control or reduce the sensitivity of the traction slip control or reduce the sensitivity of the traction slip control for a predetermined period of time (T) upon the occurrence of positive slip on a non-driven wheel and/or in the event of acceleration of a non-driven wheel. When a control in which a vehicle reference speed (V.sub.Ref) is formed, the vehicle reference speed is increased for a predetermined period of time for the purpose of suppressing undesirable control actions.

Abstract: In a method for generating trigger or ignition pulses that control a periodic event of an internal combustion engine, a precalculation is required of a calculated running time T.sub.n+1 that a crank shaft of the internal combustion engine meets in order to traverse the respectively next of prescribed, constant allowed ranges WB.sub.n. For this precalculation, a real running time TE.sub.n is measured after every traversal of one of the allowed ranges WB.sub.n and the next, following running time is precalculated with an approximation. The precalculated value of this calculated running time T.sub.n+1 is derived from the equation:T.sub.n+1 =TE.sub.n -K.sub.n where K.sub.n =1/2.times.(T.sub.n -TE.sub.n).