公开(公告)号：US20210404149A1

公开(公告)日：2021-12-30

申请号：US16912234

申请日：2020-06-25

申请人： DEERE & COMPANY

发明人： CARL J. KOENIG ,  BLAKE A. STORK ,  BRADLEY C. DAUDERMAN ,  NATHAN A. VOLKERT

IPC分类号： E02F9/22 ,  B62D55/18 ,  B62D21/02 ,  B60K23/00 ,  E02F9/20 ,  B62D55/06

摘要： A system and method for compensating reduced track speed because of engine droop for a work machine is disclosed. The system may comprise a frame, an attachment coupled to the frame, a ground-engaging mechanism adapted to support the frame, an engine, a motor, a track speed sensor, an engine speed sensor, and a controller. The engine may drive the ground-engaging mechanism and attachment. The engine may be coupled through a variable speed transmission to the ground-engaging mechanism and the attachment. They variable speed transmission may include a hydrostatic circuit. The controller may be adapted to send an increased transmission command signal based on a drop in the engine speed signal when the work machine engages an increased load. The increased transmission command signal may increase a motor speed to cause an increase in track speed to compensate at least a portion of the reduced track speed from the engine speed droop.