Phillip F Mccauley

US Patent:

6358184, Mar 19, 2002

Filed:

May 10, 2000

Appl. No.:

09/567597

Inventors:

Todd M Steinmetz - Indianapolis IN
Gregory A Hubbard - Carmel IN
Charles Francis Long - Pittsboro IN
Sean E Gleason - Indianapolis IN
Jeffrey Kurt Runde - Fishers IN
Phillip F McCauley - Zionsville IN
Martin Robert Dadel - Indianapolis IN

Assignee:

General Motors Corporation - Detroit MI

International Classification:

F16H 6106

US Classification:

477143, 477154, 477159, 701 60

Abstract:

An improved control for an automatic transmission garage shift, wherein a dynamic model of the transmission is used to estimate the transmission input torque during the shift and to schedule the on-coming clutch pressure in accordance with the estimated input torque to achieve a desired input shaft trajectory. The transmission input torque is estimated based on two different methodologies âone suited to steady-state engine idle conditions, and the other suited to engine output torque transient conditions. A fuzzy summation of the input torques provided by the two methodologies is utilized in transitions between the two conditions. Shift quality variations due to variations in mechanical and/or hydraulic stiffness are minimized by a pause or hold interval inserted between the end of the fill period and the initiation of on-coming clutch pressure control, which results in a reasonably consistent degree of perceived transmission-to-transmission hydraulic and mechanical compliance.

US Patent:

6361474, Mar 26, 2002

Filed:

May 11, 2000

Appl. No.:

09/569171

Inventors:

Sean E Gleason - Indianapolis IN
Jeffrey Kurt Runde - Fishers IN
Phillip F McCauley - Zionsville IN
Gregory A Hubbard - Carmel IN

Assignee:

General Motors Corporation - Detroit MI

International Classification:

F16H 6104

US Classification:

477143, 477154, 477155, 192 8714, 3644241, 475128, 475127

Abstract:

An improved control for an automatic transmission closed-throttle downshift, wherein closed-throttle engine torque is used to raise the transmission input speed to the synchronous speed of the target speed ratio, and wherein the on-coming clutch is controlled in a manner to complete the shift with minimum driveline torque disturbance in spite of clutch control variability. The invention includes a primary on-coming clutch control for completing the downshift when the input speed reaches the synchronous speed, and a contingent on-coming clutch control that is initiated if shift completion is not achieved by the primary control, the contingent control being effective to re-establish input speed synchronization and thereupon engage the on-coming clutch to complete the shift. The primary clutch control involves holding the on-coming clutch in readiness for engagement while the input speed approaches the synchronous speed, and when the synchronous speed is reached, raising the on-coming pressure by a predetermined amount designed to maintain the input speed at the synchronous speed. The contingent clutch control includes a first open loop stage that progressively increases the on-coming clutch pressure to gradually re-establishing the input speed synchronization, and a second closed-loop stage that adjusts on-coming clutch pressure to conform the input speed to a defined trajectory.

US Patent:

7438660, Oct 21, 2008

Filed:

Jan 17, 2006

Appl. No.:

11/333152

Inventors:

Charles F. Long - Pittsboro IN, US
Jeffrey J. Cole - Plainfield IN, US
Phillip F. McCauley - Zionsville IN, US

Assignee:

General Motors Corporation - Detroit MI

International Classification:

F16H 63/04

US Classification:

475127, 137495

Abstract:

A pressure regulator valve is provided having a valve spool slidably disposed within a stepped bore defined by a valve body. A first pressure responsive surface area is defined on the valve spool and is subject to pressurized fluid from a main pressure source. A second pressure responsive surface area is defined on the valve spool and is subject to pressurized fluid from a control source. Additionally, a third pressure responsive surface area is defined on the valve spool and is selectively subject to pressurized fluid from one of the main pressure source and the control source. A sleeve is slidably disposed within the stepped bore, the sleeve being operable to selectively distribute pressurized fluid from one of the main pressure source and the control source to the third pressure responsive surface area to effect a change in pressure gain of the pressure regulator valve.

US Patent:

RE42131, Feb 8, 2011

Filed:

May 2, 2008

Appl. No.:

12/114207

Inventors:

Charles F. Long - Pittsboro IN, US
Phillip F. McCauley - Zionsville IN, US
Darren J. Weber - Indianapolis IN, US
Scott E. Mundy - Carmel IN, US
Jeffrey E. Shultz - Zionsville IN, US

Assignee:

GM Global Technology Operations LLC - Detroit MI

International Classification:

F16H 31/00

US Classification:

475119, 475128

Abstract:

An electro-hydraulic control mechanism for use with a multi-speed transmission includes a pair of logic valves, which are manipulated during the ratio interchanges and the ratio establishment by aiding in the distribution of fluid pressure from a plurality of trim valves. The logic valves are retained in specific drive ranges in the event of electrical discontinuance.

US Patent:

8037988, Oct 18, 2011

Filed:

Sep 27, 2007

Appl. No.:

11/862380

Inventors:

Charles F. Long - Pittsboro IN, US
Phillip F. McCauley - Zionsville IN, US
Jeffrey J. Cole - Plainfield IN, US

Assignee:

GM Global Technology Operations LLC - Detroit MI

International Classification:

F16D 25/12

US Classification:

192 8563, 192 8532

Abstract:

A control system is provided for selectively actuating a dual area apply piston having first and second piston areas each selectively biased by hydraulic pressure within a respective first and second fill cavities. The control system includes a pressure regulator valve, a dual area activation valve, and a solenoid valve operable to selectively and variable operate the pressure regulator valve to effect biasing of the first and second piston areas by communicating hydraulic pressure to the first fill cavity and/or the second fill cavity.

US Patent:

20060094555, May 4, 2006

Filed:

Oct 28, 2004

Appl. No.:

10/975892

Inventors:

Charles Long - Pittsboro IN, US
Phillip McCauley - Zionsville IN, US
Darren Weber - Indianapolis IN, US

International Classification:

F16H 31/00

US Classification:

475116000

Abstract:

An electro-hydraulic control mechanism for use with a multi-speed transmission includes a pair of logic valves, which are manipulated during the ratio interchanges and the ratio establishment by aiding in the distribution of fluid pressure from a plurality of trim valves. The logic valves are retained in specific drive ranges in the event of electrical discontinuance.

US Patent:

20060270521, Nov 30, 2006

Filed:

May 25, 2005

Appl. No.:

11/137829

Inventors:

Steven James - Zionsville IN, US
Phillip McCauley - Zionsville IN, US
Jeffrey Runde - Fishers IN, US
Scott Kluemper - Monrovia IN, US
Andrew Mitchell - Indianapolis IN, US

International Classification:

B60W 10/04
B60W 10/18

US Classification:

477187000

Abstract:

According to a preferred embodiment of the present invention, a clutch is applied when the vehicle comes to a stop. The application of this clutch locks the output shaft with energy stored therein. When the shift selector is then moved to the park position, the clutch releases the stored energy in a controlled manner by slipping the clutch plates. The controlled slipping reduces the noise as the park pawl tooth contracts an output gear tooth.

US Patent:

20070167285, Jul 19, 2007

Filed:

Jan 17, 2006

Appl. No.:

11/333079

Inventors:

Charles Long - Pittsboro IN, US
Jeffrey Cole - Plainfield IN, US
Phillip McCauley - Zionsville IN, US

International Classification:

B60W 10/04

US Classification:

477182000

Abstract:

Provided is an apparatus to enable a torque transmitting mechanism within an automatically shiftable power transmission to disengage at vehicle stop such that the slip within a fluid drive device is reduced. When vehicle movement is required a main pressure regulator trims the torque transmitting mechanism into engagement. A method of reducing engine load at vehicle stop by employing the apparatus of the present invention is also provided.