Gm Global Technolgoy Operations, Inc.

Daniel P Laurent

Goro Tamai

James L Worthing

Birendra P Bhattarai

Roberto Diaz

Peter Paul Radecki

Andrew R Scheich

Shawn B Look

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 and system to capture energy during regenerative braking while managing driveline disturbances by controlling locking and unlocking of a torque-converter clutch based upon operator input, typically throttle position or accelerator pedal position, vehicle speed, and engine load is offered. The exemplary vehicle has an engine, a torque converter with a clutch, and a transmission device. Vehicle kinetic energy is transmittable to an electrical machine using the transmission device and the torque converter. It includes monitoring an operator demand for power, engine operating speed, and, engine load; and, actuating the locking clutch for the torque converter based upon the operator demand for power, the engine operating speed, and, the engine load.

Method and apparatus for control of a transmission torque converter clutch

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Saline, MI, United States of America

Daniel P Laurent