Patents Assigned to Delphi Technology, Inc.
  • High performance pin fin heat sink for electronics cooling
    Patent number: 6591897
    Abstract: A heat sink for electronic devices comprises a spreader plate having a top surface and having a bottom surface wherein a portion thereof is defined for affixing an electronic device to be cooled thereto. A plurality of columnar pins are spaced apart one from the other in a non-uniform manner and affixed to the top surface of the spreader plate substantially perpendicular thereto. A highly porous heat conducting reticulated foam block substantially fills a space defined by said spaced apart columnar pins.
    Type: Grant
    Filed: February 20, 2002
    Date of Patent: July 15, 2003
    Assignee: Delphi Technologies, Inc.
    Inventors: Mohinder Singh Bhatti, Shrikant Mukund Joshi
  • Airbag module for motor vehicles
    Patent number: 6592141
    Abstract: The invention relates to an airbag module for motor vehicles comprising a housing for an inflatable airbag and a gas generator, with the gas generator and the housing being movable independently of one another for reduction and isolation of vibration and for ease of horn actuation.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: July 15, 2003
    Assignee: Delphi Technologies, Inc.
    Inventors: Michael Dancasius, Detlev Wilhelm Guthke, Richard Standinger
  • Method of optimizing performance parameters of a switched reluctance motor
    Patent number: 6593720
    Abstract: Described is a method of optimizing performance parameters of a switched reluctance motor comprising ascertaining the parameters of at least three objectives of the motor selected from the group consisting of firing angles, power on the shaft of the motor, drive efficiency, torque ripple coefficient, output torque, torque per rms current per cycle, torque per mean ampere, energy consumption, phase target current level, hysteresis band size, duty cycle, DC voltage and zero-volt control loop; plotting the parameters on an x-y or x-y-z chart; and mapping all of the parameters on to one chart and thereby ascertaining the optimum performance of the at least three parameters.
    Type: Grant
    Filed: January 9, 2001
    Date of Patent: July 15, 2003
    Assignee: Delphi Technologies, Inc.
    Inventor: Avoki M. Omekanda
  • Stabilization of magnetorheological fluid suspensions using a mixture of organoclays
    Patent number: 6592772
    Abstract: A magnetorheological fluid formulation comprising magnetizable particles dispersed in a multi-component liquid vehicle comprising an organoclay stabilization mixture. At least one organoclay is selected for each liquid vehicle component, each organoclay having a surface chemistry that renders it preferentially compatible with the surface functionality of one of the liquid components relative to its compatibility to the remaining components whereby it is effective to stabilize, or gel, that component. A method of making an MR fluid is also provided in which liquid vehicle components are blended together, the organoclay mixture is added to the blend, and magnetizable particles are suspended therein, resulting in a stable MR fluid of suitable viscosity and yield stress.
    Type: Grant
    Filed: December 10, 2001
    Date of Patent: July 15, 2003
    Assignee: Delphi Technologies, Inc.
    Inventors: Robert T. Foister, Vardarajan R. Iyengar, Sally M. Yurgelevic
  • METHOD AND SYSTEM FOR PROGRESSIVE ENGAGEMENT OF ALL-WHEEL DRIVE
    Publication number: 20030130782
    Abstract: The invention provides a method of progressive engagement of all-wheel drive for a mobile vehicle. A set of vehicle parameters is sensed, and an all-wheel drive lock value is determined based on the sensed set of vehicle parameters. Vehicle subsystem control activation is determined, and the all-wheel drive lock value is adjusted based on the vehicle subsystem control activation determination. An all-wheel drive controller is engaged based on the adjusted all-wheel drive lock value.
    Type: Application
    Filed: January 4, 2002
    Publication date: July 10, 2003
    Applicant: DELPHI TECHNOLOGIES INC.
    Inventors: Michael J. Check, Eric E. Krueger, Steven P. Loudon
  • System with controller and method for controlling a park-interlock device in a vehicle
    Patent number: 6589134
    Abstract: Method, system and controller for electronically controlling a park-interlock device in a land-based vehicle are provided. The method allows for providing a driver-selectable shifter for selecting a respective one of a plurality of propulsion modes of the vehicle. One of the propulsion modes is a park mode. The method further allows for sensing at least one vehicle parameter for determining whether or not the park interlock device is to be actuated to a respective interlock state corresponding to the driver-selected mode and/or an operational mode automatically determined by a controller for stopping and starting during a Hill-hold function in an electric, hybrid electric vehicle. Memory is provided for storing nominal values for each vehicle parameter. A comparing action allows to compare the sensed vehicle parameters relative to the nominal parameter values stored in memory.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: July 8, 2003
    Assignee: Delphi Technologies, Inc.
    Inventors: John Derek Williams, Gerald Thomas Fattic
  • Fuel volatitlity sensor and method based on capacitance measurement
    Patent number: 6588253
    Abstract: A method and apparatus for determining a volatility of a fuel sample. A fuel sample is collected in a container and heated for a time period using a heater device. Periodically during the heating, the capacitance of the fuel sample and the temperature of the heater device are determined. After a time period passes, the volatility of the fuel sample is determined using the capacitance decrease and the temperature increase. Specifically, a voltage across the heater device is used, along with the current through the heater device to determine the resistance of the heater device, which gives the temperature of the heater device and the sample. The capacitance and temperature are compared to values derived from experimentation for fuels of varying DI. The first measurement of capacitance with a known sample volume can be used to determine the MTBE or ethanol content in gasoline fuels.
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: July 8, 2003
    Assignee: Delphi Technologies, Inc.
    Inventors: David K. Lambert, Charles Robert Harrington, Han-Sheng Lee, Da Yu Wang
  • Method and system for controlling an induction machine
    Patent number: 6590361
    Abstract: Method and system for controlling an induction machine are provided. The method allows to sense rotor position of the induction machine using a relatively low-resolution rotor position sensor configured to supply a stream of pulses indicative of angular increments as the rotor position changes. A memory device is used for storing a synchronous angle boost function. The method further allows to retrieve from the memory device at least one function parameter for providing a synchronous angle boost during a start up mode of operation of the induction machine. Upon sensing a predetermined number of pulses from the rotor position sensor, the method allows to switch from the start up mode of operation to a normal mode of operation, wherein the boost provided to the synchronous angle is discontinued upon switching to the normal mode of operation.
    Type: Grant
    Filed: July 19, 2001
    Date of Patent: July 8, 2003
    Assignee: Delphi Technologies, Inc.
    Inventors: James E. Walters, Fani S. Gunawan, Gerald Thomas Fattic
  • Engine oil contamination sensor
    Patent number: 6590402
    Abstract: An engine oil contamination sensor includes a first sensing electrode and a second sensing electrode. A sensing area is established between the electrodes. The sensor is oriented in an oil pan such that the sensing are is completely submerged in engine oil. A microprocessor is connected to the sensing electrodes and includes a program for determining whether antifreeze is dispersed in the engine oil.
    Type: Grant
    Filed: October 2, 2001
    Date of Patent: July 8, 2003
    Assignee: Delphi Technologies, Inc.
    Inventors: Su-Chee Simon Wang, Yingjie Lin
  • Fuel efficient powertrain system
    Patent number: 6588392
    Abstract: A powertrain system includes a cylinder deactivation system mechanically coupled to an internal combustion engine, and electrically coupled to an engine management system. The engine management system signals the cylinder deactivation system to selectively deactivate one or more engine cylinders. The engine continues to operate using the remaining available active engine cylinders, and generates an inconsistent torque output. A torque-smoothing device mechanically coupled to the engine, and electrically or hydraulically coupled to an energy storage device, removes and releases energy periodically to compensate for the inconsistent torque output.
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: July 8, 2003
    Assignee: Delphi Technologies, Inc.
    Inventors: Donald J. Armstrong, Harold E. Durling
  • Automatic calibration of speed signal scaling
    Patent number: 6591209
    Abstract: A method for automatically calibrating a vehicle speed sensor signal input to an electronic control system includes operating a vehicle at a reference speed. A speed signal pulse period, generated by a vehicle speed sensor operatively coupled to the vehicle, is measured. The measured speed signal pulse period is then compared to a stored set of pulse period scalings within the electronic control system. A corresponding pulse period scaling is stored in memory if the measured speed signal pulse period matches one of the stored set of pulse period scalings.
    Type: Grant
    Filed: December 18, 2000
    Date of Patent: July 8, 2003
    Assignee: Delphi Technologies, Inc.
    Inventors: Paschal J. Romano, Daniel A. Crawford, Diana K. Voges
  • Method of assembling a fuel injector body
    Patent number: 6588102
    Abstract: An engine fuel injector body is assembled using a furnace brazing method to provide structural and hermetic internal joints at interior locations with minimum size and processing. The method of assembling an injector with such an internal hermetic and structural joint may include the steps of providing an annular body member with an annular inner recess having an inner cylindrical surface, forming an annular end recess adjoining the cylindrical surface, fitting a tubular member into the inner recess of the body member with an outer surface of the tubular member engaging the cylindrical surface of the inner recess, placing a brazing ring in the end recess of the body member adjacent the tubular member, and furnace brazing the members together to form the internal hermetic and structural joint. Additional joints may be joined during the same brazing step.
    Type: Grant
    Filed: October 31, 2000
    Date of Patent: July 8, 2003
    Assignee: Delphi Technologies, Inc.
    Inventors: Robert B. Perry, Karl Jacob Haltiner, Jr., James Robert Molnar
  • Model-based control of a solenoid-operated hydraulic actuator for engine cylinder deactivation
    Patent number: 6588394
    Abstract: An improved control method for a solenoid-operated hydraulic actuator for deactivating an engine valve mechanism characterizes the dynamic response of the mechanism based on a lumped parameter model of the solenoid, the hydraulic sub-system, and a locking pin mechanism actuated by a control pressure developed by the hydraulic sub-system. In response to a mode change request, constituent delay times associated with the solenoid, the hydraulic sub-system, and the locking pin mechanism are determined and summed to form an estimate of the overall delay time required to complete the requested cylinder deactivation. The solenoid activation is then scheduled based on the estimated delay time and a window of opportunity in the engine cycle for cylinder deactivation.
    Type: Grant
    Filed: September 14, 2001
    Date of Patent: July 8, 2003
    Assignee: Delphi Technologies, Inc.
    Inventor: Quan Zheng
  • Quick connector for fluid handling
    Patent number: 6588807
    Abstract: An improved quick-disconnect connector assembly for connecting hoses, having a female element for connection to a first hose and a male element for connection to a second hose. The female element has an axial bore having a sealing mechanism for sealably receiving a tubular portion of the male element. The male element further comprises resettable valve including a coil spring that extends into the bore in the female element and is retained therein by a U-shaped clip. The spring is sized to hold the male element axially within the sealing mechanism up to a desired inline pressure. When the pressure limit is exceeded, the male element spring is extended until the seal is broken, relieving the overpressure condition. When the un-sealing force has been relieved, the extended spring biases the male element back into sealing relationship with the female element, thereby automatically resetting the relief valve.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: July 8, 2003
    Assignee: Delphi Technologies, Inc.
    Inventors: David H. Burke, Robert L. Farrar
  • Pump and pump piston assembly
    Patent number: 6589032
    Abstract: A pump and a pump piston assembly. The pump piston assembly includes a pump piston, a pump check valve, and a spring. The pump piston has a piston bore extending from a first piston end toward a second piston end. The pump check valve is positioned proximate the first piston end. The spring has an attached portion attached to the pump piston proximate the first piston end and has a biasing portion biasing the pump check valve to fluidly block the piston bore. The attached portion of the spring is closer to the second piston end than is the biasing portion of the sprint. The pump includes the pump piston assembly and a pump sleeve, wherein the pump piston is slidably engaged in the sleeve bore of the pump sleeve.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: July 8, 2003
    Assignee: Delphi Technologies, Inc.
    Inventors: Herbert Stanley Summers, III, David Fredrick Reuter
  • Connector terminus springs
    Patent number: 6591056
    Abstract: Unitary construction springs are provided for exerting an axial spring force for biasing a terminus of a connector outwardly so as to assure that the terminus abuts a corresponding terminus in a mating connector with sufficient force for maintaining proper contact when exposed to shocks and vibrations.
    Type: Grant
    Filed: March 30, 2000
    Date of Patent: July 8, 2003
    Assignee: Delphi Technologies, Inc.
    Inventors: Stephen Wesley Wall, James Thomas Hartley
  • Method and system for progressive engagement of all-wheel drive
    Patent number: 6591179
    Abstract: The invention provides a method of progressive engagement of all-wheel drive for a mobile vehicle. A set of vehicle parameters is sensed, and an all-wheel drive lock value is determined based on the sensed set of vehicle parameters. Vehicle subsystem control activation is determined, and the all-wheel drive lock value is adjusted based on the vehicle subsystem control activation determination. An all-wheel drive controller is engaged based on the adjusted all-wheel drive lock value.
    Type: Grant
    Filed: January 4, 2002
    Date of Patent: July 8, 2003
    Assignee: Delphi Technologies, Inc.
    Inventors: Michael J. Check, Eric E. Krueger, Steven P. Loudon
  • Method and apparatus for packaging an airbag
    Patent number: 6588179
    Abstract: A method and apparatus for folding an inflatable air bag cushion within an air bag module cover. An open end of the air bag cushion is attached at a moveable holding fixture and a ram cylinder is extended through an opening in the holding fixture and into the air bag cushion. A moveable containment tunnel is passed in substantially surrounding relation over at least a portion of the air bag cushion and the holding fixture and ram cylinder are conveyed through the moveable containment tunnel and towards a base portion of the cover such that the air bag cushion is pressed together irregularly within a region bounded by a wall portion of the cover.
    Type: Grant
    Filed: August 31, 2001
    Date of Patent: July 8, 2003
    Assignee: Delphi Technologies, Inc.
    Inventors: John W Haley, David Lee Anspach, Mike P Gonzalez
  • Engine cold start fuel control method having low volatility fuel detection and compensation
    Patent number: 6588409
    Abstract: An improved engine fuel control detects combustion instability due to the use of high driveability index (DI) fuel during cold start and warm-up and compensates the fuel control for detected combustion instability through temporary enrichment of the delivered air/fuel ratio. The usage of high DI fuel is detected during engine cranking by measuring the time required for the engine speed to increase from a lower reference speed to an upper reference speed, provided the engine run time is less than a calibrated value. A timer is started when the lower reference speed is achieved, and the timer value is compared to a crank time threshold determined as a function of the initial engine coolant temperature. If the timer value exceeds the crank time threshold before the engine speed reaches the upper reference speed, the presence of high DI fuel is indicated, and the air/fuel ratio is temporarily enriched.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: July 8, 2003
    Assignee: Delphi Technologies, Inc.
    Inventors: Peter James Maloney, In Kwang Yoo, Deog H. Yoo, Andrew D. Herman, Hallett D. Breidenbach, Craig A. Carlson
  • Laser welded air control valve and method
    Patent number: 6589380
    Abstract: An engine air control valve assembly includes a valve shaft and a valve plate made from composite polymeric plastics that are formed to be welded together by infrared laser welding. In a preferred embodiment, the valve shaft includes an intermediate portion with a longitudinal open groove along one side. The valve plate is formed with a central raised portion that engages the valve shaft in assembly. A tongue extends inward from the raised portion of the plate and is fitted into the shaft groove after assembly of the shaft into a valve body. The tongue is softened by a laser beam applied to the tongue/groove interface, thereby welding the valve components together in the installed location.
    Type: Grant
    Filed: February 7, 2001
    Date of Patent: July 8, 2003
    Assignee: Delphi Technologies, Inc.
    Inventors: Douglas Ronald Gnage, Gary John DeAngelis, David M. Peers