Model-based methodology for the automated optimization of shift quality for automatic transmissions

The causes for the increase in the cost and time taken for the calibration of converter automatic transmissions include complex shift strategies and shift processes with a very high number of control parameters coupled with an increasing number of gears and transmission variants. AVL and ZF developed jointly a methodology for the automation of a model-based process for the calibration of shift quality. First tests on the test bed have shown that good results have already been achieved in sections of the driveable range.