Gm Global Technolgoy Operations, Inc.

Bayerische Motoren Werke Aktiengesellschaft

Daimler Ag

Chrysler Group LLC

Prakash Haribhai Desai

Brian A Welchko

Mohammad N Anwar

Sean E Gleason

Robert W Becker

Roger M Boor

John E Carter

A hybrid powertrain system includes an engine, an electric machine, a power electronics device including a plurality of electric circuit layers, and a cooling system. A method for managing thermal energy in the power electronics device includes monitoring a plurality of temperature sensors in the power electronics device, monitoring electric power into and out of the power electronics device, predicting temperatures for the plurality of electric circuit layers, and controlling the hybrid powertrain system based upon the predicted temperatures for the plurality of electric circuit layers.

Prediction strategy for thermal management and protection of power electronic hardware

A power semiconductor bridge assembly for an alternator-fed DC power source, including positive and negative parallel spaced DC bus bars and a plurality of disk device phase modules disposed therebetween for interconnecting the bus bars with the alternator phase windings. The modules are mounted within the bus bars so as to facilitate their installation and removal. Each phase module includes a pair of disk-type power semiconductor devices separated by an inner heat sink which is connected to a motor phase winding, and sandwiched between first and second outer heat sinks. The semiconductor devices and various heat sinks are aligned along a mutual longitudinal axis which substantially coincides with a longitudinal axis of the bus bar cavity. The outer heat sinks are staggered or offset along a transverse axis of the cavity such that the first outer heat sink engages the positive DC bus bar, and the second outer heat sink engages the negative DC bus bar. Guide members formed on inner surfaces of the bus bars support the phase modules prior to their connection to the bus bars.

Modular power semiconductor assembly for an alternator-fed DC power

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Troy, MI, United States of America

Prakash Haribhai Desai