Gm Global Technolgoy Operations, Inc.

Peter Paul Radecki

Chunhao J Lee

Zhen J Zhang

Shiming Duan

Roberto Diaz

Daniel P Laurent

Shawn B Look

Xiaodong Jia

Andrew R Scheich

A torque converter management system includes a torque converter having a clutch and a torus. The torque converter management system includes memory hardware that stores instructions, that, when executed on data processing hardware of the system, cause the system to perform operations for protecting the torque converter. The operations include receiving torque converter temperature associated with the torque converter. The operations further include obtaining a torque converter protection schedule including one or more torque converter protective action initiation threshold temperatures each having an associated torque converter protective action and determining whether the torque converter temperature(s) exceeds a first one of the torque converter protective action initiation threshold temperatures. When the first torque converter temperature exceeds the first one of the torque converter protective action initiation threshold temperatures, the system initiates a first torque converter protective action associated with the exceeded first torque converter protective action initiation threshold temperature.

Torque converter protective actions for high severity customers

A method of, and a system for, controlling and predicting the health of a torque converter clutch control system is provided. The method includes determining, via a controller, rotational input and output speeds of the torque converter and a torque converter clutch slip. The method also includes determining, via the controller, whether a set of predetermined conditions are met for predicting the health of the torque converter clutch control system. The method includes gathering a plurality of initial features of the vehicle propulsion system, determining statistical information about the plurality of initial features, and selecting at least one feature of the vehicle propulsion system based on the statistical information. Furthermore, the method includes classifying the health of the torque converter clutch control system based on the selected feature or features. In some forms, principal component analysis is used to select the feature or features used for classification.

Torque converter clutch control system health estimation

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White Lake, MI, United States of America

Peter Paul Radecki