Study on fuzzy automatic transmission strategy of vehicles

In this study we discussed automatic transmission method of vehicles utilizing fuzzy technology and composed a control unit using PLC (PLC: programmable logical controller), and verified the correctness of this method on the automotive transmission testing table. The result of the experiment showed that, using the fuzzy automatic transmission strategy, different shifting strategies would be used in different working conditions, with effectively avoided the problems occurred in circulated shifting and delay shifting. This control rule has enriched the operational theory of the vehicles and has produced a kind of practical control method.