| 摘要 |
<p>The invention relates to a method to reduce jerking during shifting in an automatic gear box. The automatic gear box has a selection lever (22) with a forward drive (D) and reverse (R) operating positions, in addition to a parking position (P) and a neutral position (N). A first coupling is closed in positions R, N and D (first gear). By moving from position D and shifting to N, a second coupling is opened or by moving from position R and shifting to N, a third coupling is opened. The inventive method provides that the pressure level of the first coupling (K1) is reduced from a first (p1) pressure level to a second pressure level when a gear shifting condition is met. The first coupling (K1) is opened for a specific amount of time when a D/N or R/N shift in the selection lever is recognized.</p> |
