Gm Global Technolgoy Operations, Inc.

Stephen G Heien

Jimmy M Chang

Brendan M Conlon

John A Diemer

Alexander M Bilinski

Leo Francis Schwab

Konking Wang

An electric drive unit for powering a load, e.g., road wheels of a motor vehicle, includes a housing having a floor section separating the housing into upper and lower chambers. The floor section defines an elongated drain opening, drain holes, and an oil supply port in fluid communication with an oil pump. A rotary electric machine is enclosed within the lower chamber, and has electrical leads positioned directly below the drain opening. A cover assembly is fastened to the housing within the upper chamber, and has a coolant channel assembly integrally connected to a cover plate. The coolant channel assembly includes electrical terminals that project through the drain opening and are fastened at a first distal end of the electrical terminals to the electrical leads. The cover assembly defines a primary coolant channel in fluid communication with the oil supply port, and directs oil to the electrical terminals.

Electric drive unit having cover assembly with integrated cooling channels

A system includes a rechargeable energy storage system (RESS) having an enclosure, battery cells, contactors, a first pair of high-voltage interlock (HVIL) ports, and female blind-mate electrical sockets selectively connected to the battery cells via the contactors. The battery cells and contactors are within the RESS enclosure. The system includes a high-power distribution module (HPDM) having another enclosure, male blind-mate electrical pins, a second pair of HVIL ports engagable with the first pair, ring-terminal connections connected to the blind-mate electrical pins and connectable to high-current components, and HV280 electrical connectors electrically connected to one or more of the male blind-mate electrical pins. The male blind-mate electrical pins insert directly into and engage with the female blind-mate electrical sockets of the RESS enclosure. A vehicle includes the system, a transmission, and an electric machine.

Powertrain with high-power distribution module and high-current ring terminal connection for the same

Methods and assemblies are provided for protecting a terminal of a conductor assembly with an open face and a closed face. The protection assembly includes a housing configured to at least partially cover the open face; and a strap coupled to the housing and configured to extend around the closed face such that the housing is detachably secured to the terminal device.

Protection assemblies for terminal devices

A connector is provided for coupling an electric motor of a vehicle to a power source. The connector comprises electrode and a connector housing receiving at least a portion of the electrode. The connector housing is configured to snap-fit into a powertrain housing of the vehicle via compliant flanges. In this way, the connector may be coupled to the vehicle powertrain housing without other fasteners.

Growing community of inventors

Lake Orion, MI, United States of America

Stephen G Heien