公开(公告)号：US10183671B2

公开(公告)日：2019-01-22

申请号：US15212677

申请日：2016-07-18

Applicant: Caterpillar Inc.

Inventor： Adam L. Steffes ,  Raymond E. Durbin ,  Arthur Melvin Morris ,  Mark E. Hull ,  Matthew A. Johnson ,  Jeffrey Hynes

IPC: B60W10/02 ,  B60W10/06 ,  B60W30/188

Abstract: A system for managing a lockup clutch in an off-road truck includes an engine, a transmission and a torque converter coupled between the engine and the transmission. The torque converter has a lockup clutch that when engaged directly couples the engine to the transmission. The system also includes a transmission controller that disengages the lockup clutch responsive to sensing a missed shift in the transmission, and subsequent to sensing a completed shift, sets an engine speed limit corresponding to a gear associated with the completed shift, and reengages the lockup clutch.

公开(公告)号：US20180015924A1

公开(公告)日：2018-01-18

申请号：US15212677

申请日：2016-07-18

Applicant: Caterpillar Inc.

Inventor： Adam L. Steffes ,  Raymond E. Durbin ,  Arthur Melvin Morris ,  Mark E. Hull ,  Matthew A. Johnson ,  Jeffrey Hynes

IPC: B60W30/188 ,  B60W10/02 ,  B60W10/06

CPC classification number: F16H61/143 ,  F16H61/12 ,  F16H2063/508 ,  Y02T10/56

Abstract: A system for managing a lockup clutch in an off-road truck includes an engine, a transmission and a torque converter coupled between the engine and the transmission. The torque converter has a lockup clutch that when engaged directly couples the engine to the transmission. The system also includes a transmission controller that disengages the lockup clutch responsive to sensing a missed shift in the transmission, and subsequent to sensing a completed shift, sets an engine speed limit corresponding to a gear associated with the completed shift, and reengages the lockup clutch.