Getriebesteuerung für ein Synchro-Shuttle-Getriebe oder Lastschaltgetriebe

摘要

The invention relates to a gear control system for a synchro-shuttle gear (1) or power shift gear (2), in particular in machines, comprising switching elements for a forward drive (SEV1, SEV2) or reverse drive (SER) and switching devices for actuating a shift valve (SV1) to select the direction of travel. A control valve (SV2) is provided between the switching elements for a forward drive and reverse drive and the shift valve capable of being actuated by the switching devices to select the direction of travel; said control valve (SV2) can be actuated via a further switching device. The control valve can be used as a neutral-position or idling valve in a synchro-shuttle gear or as a reversing valve for the switching elements for forward drive in a power shift gear.