Verfahren und Einrichtung zur lastabhängigen automatischen Umschaltung von Fahrmotoren

摘要

The invention concerns a method for the load-dependent automatic change-over of at least one hydraulic travelling motor for a mobile building or working machine, in particular for a crawler or mobile excavator. The change-over from first gear to second gear and vice versa is carried out hydraulically as a function of the travelling pressure or braking pressure.