61
Eldon L Goates: Regulation of hydraulic pressure in a system having multiple pressure sources. Ford Motor Company, Frank G McKenzie, Roger L May, May 7, 1996: US05513732 (25 worldwide citation)

A bypass pressure regulator valve, having first and second regulator ports connected to a sump and each port supplied from the output side of a first and second pump, regulates the magnitude of line pressure in response to a control pressure produced by a variable force solenoid. A high pump feed se ...


62
Joseph M Raad, Geoffrey F Bridges: Steering control method and control system for wheeled vehicles. Ford Motor Company, Frank G McKenzie, Keith L Zerschling, July 9, 1991: US05029660 (25 worldwide citation)

A feedback control method and system are provided to accurately control the steering assist level in a vehicle steering system. An electric actuator, such as a solenoid, operates a flow control valve that controls the flow of control fluid in a vehicle steering system in relation to driver and vehic ...


63
Roy I Davis, Prabhakar B Patil: Computer controllable synchronous shifting of an automatic transmission. Frank G McKenzie, Donald J Harrington, August 8, 1989: US04855914 (25 worldwide citation)

A multiple forward speed automatic transmission produces its lowest forward speed ratio when a hydraulic clutch and hydraulic brake are disengaged and a one-way clutch connects a ring gear to the transmission casing. Second forward speed ratio results when the hydraulic clutch is engaged to connect ...


64
Winfried F X Schulz, Johann Kirchhoffer: Multiple ratio automatic transmission with solenoid operated valves for effecting pressure buildup. Ford Motor Company, Frank G McKenzie, Roger L May, March 18, 1997: US05612874 (24 worldwide citation)

A control system for a multiple ratio transmission including a hydrokinetic torque converter with a pressure actuated friction bypass clutch, pressure actuated clutches and brakes controlling ratio changes in forward drive and for effecting reverse drive, a solenoid operated pressure control that de ...


65
Alfred Balacan Victoria, Kenneth H Goff Jr, Lawrence Jensen Budge, Joseph A Szuba, Christian Peter Schmitz: Differential mechanism for an automotive vehicle having a cold formed housing assembly. Ford Global Technologies, Frank G McKenzie, April 4, 2000: US06045479 (24 worldwide citation)

A housing for differential mechanism is formed in two pieces using a cold flow-forming process. Each of the housing portions is formed with an internal hemispherical surface, and semi-circular recesses, which when aligned form circular recesses within which a pinion shaft is seated. A subassembly th ...


66
Thomas S Moore: Mechanism to engage part time drive system in a moving vehicle. Ford Motor Company, Frank G McKenzie, Donald J Harrington, December 30, 1986: US04632207 (24 worldwide citation)

The transfer case of a vehicle that can be driven in two-wheel drive or four-wheel drive includes a range speed transmission driveably connected to the output of a multiple speed ratio transmission and adapted to drive the transfer case output shaft. A drive sprocket journalled on the output case is ...


67
James P McCarthy, Richard E Byler: Solenoid operated clutch engagement. Ford Motor Company, Frank G McKenzie, Donald J Harrington, December 24, 1985: US04560047 (24 worldwide citation)

An electrical solenoid operates a three-way valve having a vent port, a port connected to a source of high pressure hydraulic fluid and a port connection to a pilot valve. A check valve supplied from a source of low pressure hydraulic fluid is connected to the cylinder of a clutch or servo of an aut ...


68
Fraser J Macdonald: Slipping bypass clutch construction for a hydrokinetic torque converter. Ford Motor Company, Frank G McKenzie, Keith L Zerschling, October 15, 1991: US05056631 (24 worldwide citation)

A hydrokinetic torque converter and lockup clutch assembly comprising an impeller housing and a clutch construction situated within the housing comprising a clutch plate in the form of a piston having formed thereon an annular friction surface, a friction disc located between the friction surface on ...


69
Winfried Franz Xaver Schulz, Johann Kirchhoffer: Shift control system for a multiple ratio automatic transmission. Ford Global Technologies, Frank G McKenzie, Roger L May, May 26, 1998: US05758302 (23 worldwide citation)

A control system for a multiple ratio transmission including two overrunning couplings acting in cooperation with friction clutches and brakes to effect controlled shifts between ratios to reduce inertia torque upon engagement of friction brakes associated with speed ratio downshifts that occur in t ...


70
William C Follmer: Compensation for delay of scheduled gearshifts in automatic transmissions. Ford Motor Company, Frank G McKenzie, Roger L May, August 3, 1993: US05233523 (23 worldwide citation)

A control for producing ratio changes in an automatic transmission includes sensors producing signals from which vehicle speed, throttle position, vehicle acceleration, and the time rate of throttle position are determined. Electronic memory accessible to a microprocessor contains functions relating ...