Kelly E Eber

US Patent:

20130118854, May 16, 2013

Filed:

Nov 6, 2012

Appl. No.:

13/669931

Inventors:

GM Global Technology Operations LLC - Detroit MI, US
Kelly E. Eber - Oxford MI, US

Assignee:

GM Global Technology Operations LLC - Detroit MI

International Classification:

F16D 29/00

US Classification:

192 841

Abstract:

A hydraulic control system is provided for controlling the actuation of a plurality of torque transmitting mechanisms. The hydraulic control system includes an accumulator having parallel feed paths to the plurality of torque transmitting mechanisms.

US Patent:

8562486, Oct 22, 2013

Filed:

Nov 14, 2012

Appl. No.:

13/676154

Inventors:

Kelly E Eber - Oxford MI, US

Assignee:

GM Global Technology Operations LLC - Detroit MI

International Classification:

B60W 10/02
B60W 10/04

US Classification:

477176, 477 79, 477180

Abstract:

A vehicle includes an engine and transmission. A first rotating clutch engages as an oncoming clutch during a predetermined shift maneuver having a total required clutch energy. A second rotating clutch acts as a holding clutch. A third rotating clutch engages as an additional oncoming clutch during the shift maneuver to share clutch energy with the first rotating clutch. The third rotating clutch, when not engaged, has a zero slip speed relative to the input member. A method includes building a shift table for a transmission design, including identifying slip speed ratios, with respect to the input member, for each clutch, and selecting, from the shift table, a direct drive or other gear state in which three of the rotating clutches are simultaneously operating at a zero slip speed ratio with respect to the input member. The third rotating clutch engages during the shift maneuver.

US Patent:

20190063597, Feb 28, 2019

Filed:

Aug 30, 2017

Appl. No.:

15/690720

Inventors:

- Detroit MI, US
Kelly Eber - Oxford MI, US
Steven P. Moorman - Dexter MI, US
Christopher G. Benson - Rochester Hills MI, US
Cheol W. Kim - Canton MI, US
Ryan M. Jenness - Ypsilanti MI, US
Christopher M. Kaminski - Berkley MI, US

International Classification:

F16H 61/00
F16D 25/00
F16D 41/00
F16D 48/02
F16H 63/34
F16H 61/30

Abstract:

A hydraulic control system for a transmission of a motor vehicle includes a source of pressurized hydraulic fluid that communicates with an analog electronic transmission range selection (ETRS) subsystem or a manual valve. The ETRS subsystem includes an ETRS valve, a park servo, a park mechanism, a mode valve, and a plurality of solenoids. The ETRS and manual valve communicate with a clutch actuator subsystem that engages a one-way clutch and six clutches/brakes.

US Patent:

20190048992, Feb 14, 2019

Filed:

Aug 11, 2017

Appl. No.:

15/674592

Inventors:

- DETROIT MI, US
Kelly Eber - Oxford MI, US

International Classification:

F16H 57/04
F16K 31/122

Abstract:

A transmission for a vehicle propulsion system includes a transmission housing defining a sump volume and valve body side cover volume separated by a side wall from the sump volume, a valve operable to selectively connect the valve body side cover volume with the sump volume through a fluid flow passage, a source of selectively pressurizable fluid, and an orifice connecting the source of selectively pressurizable fluid to the fluid flow passage.