公开(公告)号：US08718887B1

公开(公告)日：2014-05-06

申请号：US13675010

申请日：2012-11-13

Applicant: GM Global Technology Operations LLC

Inventor： Jonathan M. Bolenbaugh ,  James Sydenstricker ,  Lawrence A. Kaminsky ,  Jy-Jen F. Sah

IPC: G06F7/00

CPC classification number: G01M13/02 ,  G01M13/022

Abstract: A method to monitor a torque transfer device configured to transfer torque within an electro-mechanical transmission mechanically-operatively coupled to an internal combustion engine and at least one electric machine includes executing a failure detection strategy in response to a detected slip condition of the torque transfer device. The failure detection strategy includes monitoring a magnitude of energy loss of the torque transfer device. A failure condition in the torque transfer device is detected when the magnitude of energy loss achieves a predetermined energy threshold.

Abstract translation: 一种用于监测扭矩传递装置的方法，所述扭矩传递装置被配置成在机械上可操作地耦合到内燃机和至少一个电机的机电变速器内传递扭矩，包括响应于检测到的转矩传递滑动条件执行故障检测策略 设备。 故障检测策略包括监测扭矩传递装置的能量损失的大小。 当能量损失的大小达到预定的能量阈值时，检测转矩传递装置的故障状态。