Patents Assigned to Delphi Technologies
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Patent number: 6915979Abstract: An acceleration sensor assembly for a restraint retractor of a seat restraint system in a vehicle includes an acceleration sprocket operatively connected to the restraint retractor. The acceleration sensor assembly also includes an acceleration pawl cooperating with the acceleration sprocket to operatively cause lock up of the restraint retractor. The acceleration sensor assembly includes an inertia member cooperating with the acceleration pawl to move the acceleration pawl when an acceleration force is present and a gimbal to support the inertia member. The acceleration sensor assembly further includes a non-contact damping mechanism cooperating with the gimbal to dampen movement of the gimbal until the acceleration force exceeds a predetermined value and the inertia member actuates the acceleration pawl to engage the acceleration sprocket to operatively cause lock up of the restraint retractor and prevent unwinding of a belt from the restraint retractor.Type: GrantFiled: September 29, 2003Date of Patent: July 12, 2005Assignee: Delphi Technologies, Inc.Inventors: James L. Webber, Kevin Wei-Loong Ng
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Patent number: 6917794Abstract: A phase compensation circuit, for use with an FM reception system, includes a delay circuit and a control circuit. The delay circuit receives a composite input signal that exhibits a variable phase error and provides a plurality of selectable discrete delays. The control circuit is coupled to the delay circuit and receives a control signal whose value corresponds to the phase error associated with the composite input signal. The control circuit selects one of the plurality of selectable discrete delays responsive to the control signal, which is utilized to delay the composite input signal to provide a phase compensated composite output signal.Type: GrantFiled: April 9, 2001Date of Patent: July 12, 2005Assignee: Delphi Technologies, Inc.Inventors: Jeffrey Joseph Marrah, Linh Ngoc Pham, Rohail Andrew Pervez, Myron Glen Padgett, Richard Albert Kennedy, Matthew James Yarosz
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Patent number: 6915646Abstract: An air conditioning system for a vehicle includes an accumulator/dehydrator (A/D) disposed in the suction fluid line for accumulating refrigerant and a heat transfer jacket surrounds the A/D for exchanging heat with the A/D and the refrigerant therein. The heat transfer jacket may define a space between an inner wall of the A/D and an outer wall spaced therefrom with a heat transfer media disposed in the space for cooling by extracting heat from the refrigerant in the A/D. Alternatively, the jacket is defined by a double walled sleeve surrounding the A/D and defining the space for the heat transfer media. Yet another alternative is for the heat transfer jacket to comprise a thermoelectric device.Type: GrantFiled: June 24, 2003Date of Patent: July 12, 2005Assignee: Delphi Technologies, Inc.Inventors: Prasad Shripad Kadle, James Allen Baker, Mahmoud Ghodbane
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Patent number: 6916384Abstract: A method of treating a gas sensor comprising: disposing the gas sensor in a basic agent solution comprising a basic agent selected from the group consisting of Group IA of the Periodic Table of Elements, Group IIA of the Periodic Table of Elements, and combinations comprising at least one of the foregoing metals, wherein the gas sensor comprises an electrolyte disposed between and in ionic communication with a first electrode and a second electrode; disposing the gas sensor in an acidic agent solution; wetting at least a portion of a porous protective layer of the gas sensor with an alkaline-carbonate solution; and heating the gas sensor.Type: GrantFiled: October 22, 2001Date of Patent: July 12, 2005Assignee: Delphi Technologies, Inc.Inventors: Kailash C. Jain, Kenneth M. Rahmoeller, Da Yu Wang, Paul Kikuchi, Carlos A. Valdes
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Patent number: 6915882Abstract: A disc brake comprises at least two axially slidable brake discs. The brake discs are mounted for axial sliding movement under the dynamic conditions of use by means of a series of circumferentially spaced wire springs or leaf springs each of which simultaneously receives the at least two brake discs on the axially-extending structure of the spring. As a result, initiation of braking causes simultaneous axial sliding movement of the entire spring and multiple disc assembly as a unit, thereby achieving a more balanced braking action and more even friction pad wear.Type: GrantFiled: December 17, 2001Date of Patent: July 12, 2005Assignee: Delphi Technologies, Inc.Inventor: William Anthony Thorpe
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Patent number: 6915767Abstract: A method of determining the position of a cam phaser determines and stores an adaptively updated base offset corresponding to the phase offset of a camshaft relative to a crankshaft for a reference or default position of a cam phaser. Thereafter, the phaser position is determined relative to the base offset. Individual base offsets are preferably determined for each tooth of a toothed cam wheel, and stored in a non-volatile memory device. During engine operation, the base offsets are subject to diagnostic testing and adaptive updating, and the updated base offsets are stored in the non-volatile memory at engine shut-down.Type: GrantFiled: September 23, 2003Date of Patent: July 12, 2005Assignee: Delphi Technologies, Inc.Inventors: Jeffrey M. Pfeiffer, Gregg Stepien, Amanpal S. Grewal
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Patent number: 6917890Abstract: A method of calibrating a vehicle electrical system having a data bus includes transmitting calibration data to a calibration data device, such as a memory card, associated with an electronic device, such as a radio, simultaneous to other vehicle assembly steps; and transferring at least a portion of the calibration data from the electronic device to electronic modules coupled to the data bus upon a triggering event, such as application of electric power to the vehicle electrical system.Type: GrantFiled: May 29, 2003Date of Patent: July 12, 2005Assignee: Delphi Technologies, Inc.Inventors: J. Roger Davis, Jill G. Hersberger, Linda L. Miner, R. Clarkson Griffin
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Patent number: 6914524Abstract: A sensor system is provided configured to communicate data to a processing module of a vehicle, the processing module configured to perform computational analysis based on the data received from the sensor system, the sensor system including a means for determining a condition of an ignition switch for cranking an engine of the vehicle and a means for determining a running condition of the engine. Computational analysis of the received operational parameter data may be used to detect a catastrophic lubricant loss. Other computational analysis associated with the vehicle may be performed based on the operational parameter data. A method is provided for determining a condition of at least one operational parameter associated with an internal combustion engine of a vehicle and performing computational analysis associated with the vehicle based on the condition of the at least one operational parameter.Type: GrantFiled: February 27, 2003Date of Patent: July 5, 2005Assignee: Delphi Technologies, Inc.Inventors: Axel H Berndorfer, Fawaz N Budeiri
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Patent number: 6913327Abstract: The present invention provides a method and control scheme to operate a motor-driven actuator. This includes determining actuator force on an external device, determining a command force, and monitoring actuator position. A determination is made whether to operate in a force-control mode or a position-control mode. Both the force-control mode and the position-control mode employ a common feedback control method (e.g. PI or PID). The system operates the actuator in the force-control mode, using actuator force as feedback to the control scheme when the controller determines that the force sensor is operating in its linear range. When the force sensor is operating outside or near the limits of its linear range, the control scheme determines a pseudo-force, comprising estimated force based upon measured position. The pseudo-force is input to the common feedback control method to control the actuator.Type: GrantFiled: June 18, 2003Date of Patent: July 5, 2005Assignee: Delphi Technologies, Inc.Inventor: Richard James Thomas
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Patent number: 6912860Abstract: A method of operating a directed relief valve (28) for an air conditioning system (10) preferably for a vehicle. The air conditioning system (10) includes a compressor (12), a condenser (16), an expansion device (20), and an evaporator connected to one another by refrigerant lines. The system (10) also includes the directed relief valve (28), which is disposed inline with at least one of the refrigerant lines to ventilate the refrigerant. The directed relief valve (28) includes a detonable squib (36) that explodes in response to a ventilation signal. A controller (40) generates the ventilation signal in response to a refrigerant leak being detected by a sensor (38). The sensor (38) is preferably located within an air space (27) and adjacent to the evaporator (22). If there is a malfunction of one of a plurality of sensors (38), a partial malfunction message is sent to the operator.Type: GrantFiled: June 8, 2004Date of Patent: July 5, 2005Assignee: Delphi Technologies, Inc.Inventors: Mark J. Zima, Prasad S. Kadle
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Patent number: 6914399Abstract: A method for implementing active deadtime control of an inverter associated with an electric motor is disclosed. In an exemplary embodiment, the method includes receiving a command voltage signal indicative of a desired load to be driven by the motor. Based upon the value of the command voltage signal, a determined value of deadtime is applied to switching circuitry in the inverter, wherein the value of deadtime relates to an amount of time in which the switching of a device in the switching circuitry is delayed so as to prevent a short circuit condition within the inverter.Type: GrantFiled: October 14, 2002Date of Patent: July 5, 2005Assignee: Delphi TechnologiesInventors: Mark D. Kushion, Dennis B. Skellenger
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Patent number: 6912920Abstract: A seat frame-based occupant weight estimation load cell transfers the seat force to a floor bracket through a spherical ball and a ball actuator. The ball is in contact with the force sensor and has minimal contact area with either the ball actuator or the force sensor so that the transfer of forces not functionally related to occupant weight is minimized. The ball actuator is coupled to the seat frame, and a sensor bracket aligns the ball actuator with respect to the sensor. The sensor bracket is domed to securely anchor the seat to the floor bracket in the event of an inverse overload. A spring disposed between the ball actuator and the dome of the sensor bracket biases the ball against the force sensor to preload the force sensor for enabling off-loading detection.Type: GrantFiled: July 31, 2003Date of Patent: July 5, 2005Assignee: Delphi Technologies, Inc.Inventors: Duane D. Fortune, Morgan D. Murphy
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Patent number: 6912946Abstract: The present invention includes a system for providing an improved controlled airflow within a vacuum booster system. The system includes a vacuum booster assembly having a primary chamber and a secondary chamber, and an outer tube having a first end and a second end, the first end in communication with the secondary chamber of the vacuum booster assembly. The system additionally includes an airflow control assembly operably coupled to the second end of the outer tube, and an inner tube, concentric to the outer tube, having a first end and a second end, the first end operably coupled to the airflow control assembly, the second end in communication with the primary chamber of the vacuum booster assembly. In the system, air flows from the primary chamber of the vacuum booster assembly to the airflow control assembly within the inner tube and air flows from the airflow control assembly to the secondary chamber of the vacuum booster assembly within the outer tube.Type: GrantFiled: May 28, 2003Date of Patent: July 5, 2005Assignee: Delphi Technologies, Inc.Inventors: Timothy A. Haerr, Gary C. Fulks, Ryan M. Elking, Derek T. Dreischarf, Patrick T. MacLellan
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Patent number: 6910827Abstract: A knob retainer system including a knob having a cavity and an opening into said cavity and a retainer adapted to fit within the knob cavity. The retainer includes wing portions and a cantilevered barbed portion. When the retainer is placed inside of the knob cavity and the actuating lever is manipulated between the retainer and an upper wall of the knob cavity, the actuating lever downwardly depresses the retainer thereby causing stakes located in the retainer to positively engage a portion of the cavity wall thereby preventing the retainer from moving with respect to the knob. The retainer is also fitted with a cantilevered portion which terminates in a barbed end. The barbed end positively engages an engagement surface on the actuating lever thereby preventing the actuating lever from pulling away from the knob/retainer assembly. The actuating lever is easily removed from the knob/retainer assembly by use of a specialized tool.Type: GrantFiled: March 18, 2003Date of Patent: June 28, 2005Assignee: Delphi Technologies, Inc.Inventors: Alberto Carrillo Maloof, Gustavo Del Campo Gonzalez
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Patent number: 6911830Abstract: A method by which contaminant (soot) content in Diesel engine oil is determined using electrical conductivity measurements of the Diesel oil at a high frequency, or by which contaminant (soot and/or water and/or anitfreeze) content is determined using the ratio of electrical conductivity measurements of the Diesel oil at a high frequency to the electrical conductivity measurements of the Diesel oil at a low frequency. Both the conductivity ratio and the high frequency conductivity are essentially independent of the brand of oil. High frequency is defined to be above 2 MHz whereas low frequency is defined to be D.C. to about 1 kHz.Type: GrantFiled: August 22, 2002Date of Patent: June 28, 2005Assignee: Delphi Technologies, Inc.Inventors: Joseph Pierre Heremans, Su-Chee Simon Wang, Thaddeus Schroeder, Louis L. Nagy
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Patent number: 6909964Abstract: A vehicle locating system includes a first transmitter within the vehicle, the first transmitter is configured to transmit a location signal; and a key fob including: a receiver, a direction indicator, and wherein the direction indicator is configured to point towards the first transmitter in response to receipt of the location signal by the receiver.Type: GrantFiled: July 3, 2002Date of Patent: June 21, 2005Assignee: Delphi Technologies, Inc.Inventors: Ray G. Armstrong, Robert A. Perisho, Jr., Curtis N. Kell
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Patent number: 6909351Abstract: With an ignition coil module comprising a coil system which includes a primary winding and a secondary winding and a flux conducting, soft magnetic device to increase and/or to conduct a magnetic flux generated by one of the windings and comprising an electronic component to control the coil system which has an electrical circuit and a heat sink to cool the electronic component, at least one section of the heat sink is connected to a section of the flux conducting device in a thermally conductive manner such that waste heat of the electronic component can be dissipated over the section of the flux conducting device.Type: GrantFiled: April 30, 2003Date of Patent: June 21, 2005Assignee: Delphi Technologies, Inc.Inventors: Klaus Gernert, Sami Ruotsalainen, Peter Weyand
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Patent number: 6907748Abstract: Each blow-off valve includes a valve body with a first movable wall defining a portion of the liquid fluid passage therein and a second movable wall defining a portion of the suction fluid passage therein. An actuator interconnects the movable walls for simultaneously moving the walls and opening the fluid passages in response to the electrical leakage-warning signal. In the species of FIGS. 2 and 3, the movable walls are integrally united with the valve body and include frangible sections that are fractured by an explosive squib to separate the movable walls from the body to simultaneously open the liquid and suction fluid passages. In the species of FIG. 5, the movable walls are separate valve elements disposed in a circular bore that opens the passages to the ambient surroundings. The actuator includes a spring, for biasing each of the valve elements out of its respective bore, and a holding device that weakens in response to the electrical leakage-warning signal.Type: GrantFiled: June 26, 2003Date of Patent: June 21, 2005Assignee: Delphi Technologies, Inc.Inventors: Prasad Shripad Kadle, James Allen Baker, William James Kumpf, Mahmoud Ghodbane, Lawrence P. Scherer
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Patent number: 6908110Abstract: A collapsible steering column is used with motor vehicle. The motor vehicle has a frame. The steering column has an outer jacket and a stationery bracket. The outer jacket is releasably coupled to the frame. The stationery bracket is coupled to the frame. The outer jacket and stationery bracket are collapsible in response to release of the outer jacket from the frame. An electrically actuated brake mechanism is coupled between the stationery bracket and the outer jacket and provides an infinitely variable resistive force to the collapse of the outer jacket and the stationery bracket.Type: GrantFiled: March 27, 2003Date of Patent: June 21, 2005Assignee: Delphi Technologies, Inc.Inventors: Christian E. Ross, Xiaoyu Li, Matthew W. Mielke, James S. Baughman
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Patent number: 6905349Abstract: An electronic assembly and/or a mold is constructed to reduce deflection and resultant damage to components and/or an associated printed circuit board of the electronic assembly when the electronic assembly is overmolded.Type: GrantFiled: February 23, 2004Date of Patent: June 14, 2005Assignee: Delphi Technologies, Inc.Inventors: Scott D. Brandenburg, David A. Laudick, Thomas A. Degenkolb, Larry M Mandel, Richard D. Parker