Patents by Inventor William J. Haley

William J. Haley has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5314385
    Abstract: A clutch cooling system for cooling a clutch used in combination with a continuously variable transmission including a pressure controlled spool valve having a housing defining a chamber, a spool movably mounted by a spring within the chamber, and a notch defined by the housing such that as the leading edge of the spool aligns with the notch a variable orifice is formed; a pressure controller means for adjusting the pressure applied to the remote end of the spool such that as the pressure applied to the remote end is reduced the spring decompresses causing the spool to traverse the housing and further causing the leading edge of the spool to pass along the notch thereby increasing the size of the variable orifice; a slot located within the spool that allows for minimum cooling flow when the spool valve variable orifice is closed; a cooling fluid feed line and a clutch cooling line extending from the chamber such that cooling fluid can flow from the cooling fluid feed line, into the chamber, through the orific
    Type: Grant
    Filed: November 13, 1992
    Date of Patent: May 24, 1994
    Assignee: Borg-Warner Automotive, Inc.
    Inventors: William J. Haley, Alan L. Miller, Karl F. Schneider
  • Patent number: 5269726
    Abstract: A system and several strategies for controlling a continuously variable transmission with an improved secondary servo arrangement in order to efficiently provide sufficient clamping forces under high torque conditions. The valving means allowing for the relative movement of the second variable pulley's movable sheave includes a valving arrangement operative to regulate the secondary apply pressure at or below the hydraulic source pressure and distinct from the primary line pressure. Control signals are developed to prevent belt slip and to efficiently launch a vehicle, maintain the necessary primary to secondary clamping force ratio in overdrive conditions, and avoid overpressurization of the secondary servo for many vehicle operating conditions.
    Type: Grant
    Filed: July 21, 1992
    Date of Patent: December 14, 1993
    Assignee: Borg-Warner Automotive, Inc.
    Inventors: Glenn E. Swanson, Alan L. Miller, William J. Haley
  • Patent number: 5244437
    Abstract: A continuously variable transmission includes an improved secondary servo arrangement in order to provide the necessary clamping forces for high torque conditions. The secondary servo includes a plurality of fluid chambers in order to allow an increase in the area for application of fluid pressure. Fluid conduits between the chambers permit communication of the fluid to the chambers to regulate the clamping force of the movable sheaves of the secondary variable pulleys.
    Type: Grant
    Filed: June 26, 1991
    Date of Patent: September 14, 1993
    Assignee: Borg-Warner Automotive, Inc.
    Inventors: William J. Haley, Glenn E. Swanson, Philip J. Mott
  • Patent number: 5180339
    Abstract: A continuously variable transmission includes an improved secondary servo arrangement in order to provide the necessary clamping forces for high torque conditions. The secondary servo includes a plurality of fluid chambers in order to allow an increase in the area for application of fluid pressure. Fluid conduits between the chambers permit communication of the fluid to the chambers to regulate the clamping force of the movable sheaves of the secondary variable pulleys.
    Type: Grant
    Filed: August 22, 1991
    Date of Patent: January 19, 1993
    Assignee: Borg-Warner Automotive, Inc.
    Inventors: William J. Haley, Glenn E. Swanson
  • Patent number: 5087177
    Abstract: A dual capacity pump having at least two gear pump stages with a common fluid inlet passage, each pump stage having a discharge port, the discharge port for one stage communicating with a fluid pressure load through a flow delivery passage and the discharge port for the other stage communicating with the flow delivery passage through a one-way flow valve, and flow control valve means responsive to an operating variable for connecting the discharge side of the other stage to the common fluid inlet passage during operation in a first operating range of low driving speeds for the pump and to said flow delivery passage through the one-way flow valve during operation in a calibrated range of values for the operating variable.
    Type: Grant
    Filed: September 27, 1990
    Date of Patent: February 11, 1992
    Assignee: Borg-Warner Automotive, Inc.
    Inventors: William J. Haley, Glenn E. Swanson
  • Patent number: 5006092
    Abstract: A power train configuration for a continuously variable transmission includes a slippable start clutch located upstream of a belt and sheave system and a pair of non-dynamic forward-reverse clutches located down stream of the continuously variable component. The clutch capacities of the pair of forward-reverse clutches are marginally greater than the maximum torque capacity of the engine but marginally less than the torque at which the belt of the belt and sheave system slips.
    Type: Grant
    Filed: May 24, 1990
    Date of Patent: April 9, 1991
    Assignee: Borg-Warner Automotive, Inc.
    Inventors: Guenter Neuman, William J. Haley
  • Patent number: 4875561
    Abstract: An adaptive clutch torque capacity control for an automotive vehicle clutch utilizing a dual area apply piston for engagement of the clutch plate for accurate control over a larger than normal torque range. The use of two piston areas allows one area to be controlled in a "coarse" fashion, while the other piston area, which is generally a small area, provides a "vernier" or fine adjustment control. The small area piston is controlled by an electronic closed loop for fine adjustment of any errors occurring in the "coarse" control.
    Type: Grant
    Filed: October 9, 1987
    Date of Patent: October 24, 1989
    Assignee: Borg-Warner Automotive, Inc.
    Inventors: Karl F. Schneider, William J. Haley, Alan L. Miller
  • Patent number: 4779489
    Abstract: When a pulse width modulated electrical signal is employed to operate an electro-mechanical device, such as a solenoid valve, in a transmission to produce a controlled fluid pressure whose level is proportional to the signal's duty cycle, proper operation at cold temperatures is ensured by varying the frequency of the pulse width modulated signal directly with the temperature of the transmission fluid. By decreasing the operating frequency when the transmission fluid is cold (at which time the fluid may thicken and become heavy since its viscosity will increase), the solenoid valve will be actuated slowly enough to effect flow control through the valve and adequate regulation of the fluid pressure.
    Type: Grant
    Filed: March 9, 1987
    Date of Patent: October 25, 1988
    Assignee: Borg-Warner Automotive, Inc.
    Inventor: William J. Haley
  • Patent number: 4718308
    Abstract: A control arrangement for a continuously variable transmission includes an electronic control system and a hydraulic control system. In the hydraulic control system three separate electromechanical control assemblies are used to regulate the pressure in the secondary sheave chamber (to hold the belt tension), the fluid flow to and from the primary sheave chamber (to regulate the CVT ratio), and to control the pressure in the apply line for the clutch chamber. The pump assembly of the hydraulic control system has a first output connection for providing fluid at line (high) pressure in the main line, and a second, low pressure output connection for providing fluid at a low pressure to satisfy the clutch cooling requirements. The high pressure and low pressure systems are essentially independent of each other.
    Type: Grant
    Filed: March 29, 1985
    Date of Patent: January 12, 1988
    Assignee: Borg-Warner Automotive, Inc.
    Inventor: William J. Haley
  • Patent number: 4712453
    Abstract: A control arrangement for a continuously variable transmission includes an electronic control system and a hydraulic control system. In the hydraulic control system solenoid valves are used in conjunction with fluid control valves to regulate the various fluid pressure levels in the system. A variable displacement pump provides fluid under pressure in the main line. A modulator valve, connected to the main line, provides a controlled low pressure to the various control assemblies. Thus the solenoid valve and associated components can be more economical than in those systems where only the normal line pressure arrangement is used.
    Type: Grant
    Filed: February 24, 1986
    Date of Patent: December 15, 1987
    Assignee: Borg-Warner Corporation
    Inventor: William J. Haley
  • Patent number: 4522086
    Abstract: The disclosed control system for a CVT controls the line pressure which is applied to the secondary pulley to maintain adequate belt tension, at a level significantly lower than previously was produced. An improved throttle valve is provided, and used in this throttle-sensitive regulation of line pressure. An improved ratio valve is provided, which combines spring and fluid forces in a manner to produce the ratio-indicating fluid signal, with negligible loading on the movable sheave where the ratio change is sensed. In the ratio-changing portion of the system, the combination of a timing valve and accumulator valve cooperate in demand type downshifts to provide adequate time for oil flow into the secondary pulley chamber as the primary pulley chamber is exhausted, to keep adequate belt tension during such a downshift.
    Type: Grant
    Filed: April 24, 1981
    Date of Patent: June 11, 1985
    Assignee: Borg-Warner Corporation
    Inventor: William J. Haley
  • Patent number: 4515255
    Abstract: A fluid control system for a continuously variable transmission utilizing a first valve which is manually operable, and a second valve operable by a fluid motor which fluid motor also provides engagement and disengagement of two gear ratios. The first valve directs fluid flow from a fluid source to the fluid motor and to the second valve for communication to a fluid actuated starting clutch. Fluid for the clutch and fluid motor are only provided when the first valve is selectively engaged to the first or second operable gear ratios thereby directing fluid from the fluid source to the fluid actuated motor. The fluid motor is operable to move a gear engaging means and simultaneously move the second valve to an aligned port position permitting fluid flow to the starting clutch.
    Type: Grant
    Filed: August 6, 1982
    Date of Patent: May 7, 1985
    Assignee: Borg-Warner Corporation
    Inventors: William J. Haley, Guenter J. Neumann
  • Patent number: 4478322
    Abstract: An electronic control system for a lockup clutch includes a control system for receiving a vehicle speed signal and, as a function of adjustable engagement and release threshold signals, controlling a solenoid valve to engage and release a lockup clutch. The point of lockup is set by a potentiometer to represent a first vehicle speed, and the point of release is set by a variable resistor at a second speed, lower than the first. The variable resistor is switched into the circuit only after the first threshold level is passed and the clutch is locked up. A signal from the brake pedal overrides the threshold established in the control system to provide clutch disengagement as soon as the brake pedal is depressed. Various circuit components protect the control system from inadvertent damage by the driver and/or vehicle maintenance personnel.
    Type: Grant
    Filed: April 24, 1981
    Date of Patent: October 23, 1984
    Assignee: Borg-Warner Corporation
    Inventors: David K. Carlson, William G. Burnia, William J. Haley