Charles A Barnes

US Patent:

53159012, May 31, 1994

Filed:

Dec 17, 1992

Appl. No.:

7/992226

Inventors:

Charles W. Barnes - Plymouth MI

Assignee:

Ford Motor Company - Dearborn MI

International Classification:

F16H 6114

US Classification:

192 33

Abstract:

An automatic transmission having a hydraulic torque converter and a multiple-ratio gear system in an automotive vehicle driveline wherein the converter includes a pressure-actuated bypass clutch and a control valve system for maintaining a regulated charge pressure in the torque converter and for controlling the actuation and release of the bypass clutch, the valve system including a main regulator that establishes a circuit pressure and that establishes priority distribution of pressurized fluid to the torque converter while temporarily interrupting distribution of pressurized fluid to the transmission lubrication circuit.

US Patent:

57992606, Aug 25, 1998

Filed:

Feb 20, 1996

Appl. No.:

8/602559

Inventors:

Timothy A. Droste - Howell MI
Charles W. Barnes - Plymouth MI
Mark J. Kane - Eastpointe MI
Paul J. Castiglione - Milford MI

Assignee:

Ford Global Technologies, Inc. - Dearborn MI

International Classification:

F16H 6114
F04B 2304

US Classification:

701 51

Abstract:

A system for controlling a pump in a hydraulic circuit for an automatic transmission, having a viscosity insensitive fixed orifice and a relatively high resistance laminar orifice connected in series relationship between a vent port and a control pressure supplied to a secondary regulated pressure SRP valve. At relatively low temperature, flow through the laminar orifice is negligible; therefore, the steady-state differential pressure across the fixed orifice is negligible. At relatively higher temperatures, flow through the laminar orifice increases. A pressure divider is established and the feedback differential pressure is reduced in proportion to the hydraulic resistance of the two orifices. Flow to friction elements from a primary pump and auxiliary pump and return of fluid to the inlets of the pumps is controlled through a clutch capacity pressure regulator valve acting in cooperation with the SRP valve.

US Patent:

56370539, Jun 10, 1997

Filed:

Feb 20, 1996

Appl. No.:

8/603509

Inventors:

Timothy A. Droste - Howell MI
Charles W. Barnes - Plymouth MI
Mark J. Kane - Eastpointe MI

Assignee:

Ford Motor Company - Dearborn MI

International Classification:

F16H 6114

US Classification:

477 62

Abstract:

A system for controlling operation of a bypass clutch for a torque converter in an automatic transmission includes a converter lockout valve for producing a pressure signal having a first magnitude indicating unlocked operation of the converter clutch and a second magnitude representing locked operation, the pressure magnitudes being produced in response to control pressures representing engine speed, transmission operation in any forward gear, and in a first forward gear.

US Patent:

43556981, Oct 26, 1982

Filed:

Jul 21, 1980

Appl. No.:

6/170360

Inventors:

Charles A. Barnes - Bellevue MI
Dean E. Davis - Battle Creek MI
Carl L. Wykoff - Jackson MI

Assignee:

Clark Equipment Company - Buchanan MI

International Classification:

B60T 702

US Classification:

180273

Abstract:

A brake and transmission control system for a vehicle having a hydraulically controlled power shift transmission and a spring applied hydraulically released parking brake. Both the transmission control and the brake are interconnected hydraulically with the operator's seat whereby when the operator leaves the seat the transmission is automatically shifted to neutral and the parking brake is automatically applied.