Patents by Inventor Daniel G. Gauthier
Daniel G. Gauthier 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: 11391232Abstract: A particulate matter sensor includes a first sensing electrode and a second sensing electrode spaced away from the first sensing electrode such that an electrode gap is formed between the first sensing electrode and the second sensing electrode upon which particulate matter is collected, thereby changing conductance between the first sensing electrode and the second sensing electrode. An ionic conductive material is in electrical communication with the first sensing electrode and the second sensing electrode.Type: GrantFiled: October 23, 2019Date of Patent: July 19, 2022Assignee: DELPHI TECHNOLOGIES IP LIMITEDInventors: Daniel G. Gauthier, David D. Cabush, Alfredo Ibarra Covarrubias, David A. Goulette
-
Publication number: 20210123392Abstract: A particulate matter sensor includes a first sensing electrode and a second sensing electrode spaced away from the first sensing electrode such that an electrode gap is formed between the first sensing electrode and the second sensing electrode upon which particulate matter is collected, thereby changing conductance between the first sensing electrode and the second sensing electrode. An ionic conductive material is in electrical communication with the first sensing electrode and the second sensing electrode.Type: ApplicationFiled: October 23, 2019Publication date: April 29, 2021Inventors: DANIEL G. GAUTHIER, DAVID D. CABUSH, ALFREDO IBARRA COVARRUBIAS, DAVID A. GOULETTE
-
Patent number: 8682564Abstract: A method is provided for sensing the position of a camshaft in an internal combustion engine having a camshaft phaser for controllably varying the phase relationship between a crankshaft of the internal combustion engine and the camshaft, the camshaft phaser being actuated by an electric motor and having a gear reduction mechanism with a predetermined gear reduction ratio and a sensor for determining the rotational position of the electric motor. The method includes generating a rotational position signal indicative of the rotational position of the electric motor by using the sensor to determine the rotational position of the electric motor and calculating the position of the camshaft based on the rotational position signal and the gear reduction ratio of the gear reduction mechanism.Type: GrantFiled: August 23, 2011Date of Patent: March 25, 2014Assignee: Delphi Technologies, Inc.Inventors: Daniel G. Gauthier, Sebastien Stoltz-Douchet, Jeffrey M Pfeiffer
-
Patent number: 8468989Abstract: A method for operating a camshaft phaser in an internal combustion engine is provided. The camshaft phaser is used to control the phase relationship between a crankshaft and a camshaft of the internal combustion engine. The method includes determining that the internal combustion engine will be placed in an automatic stop mode. The camshaft phaser is then controlled to establish a predetermined phase relationship between the crankshaft and the camshaft. The internal combustion engine is then placed in automatic stop mode and the predetermined phase relationship is maintained by substantially blocking oil flow between the camshaft phaser and the internal combustion engine.Type: GrantFiled: November 30, 2010Date of Patent: June 25, 2013Assignee: Delphi Technologies, Inc.Inventors: James P Waters, Daniel G. Gauthier
-
Patent number: 8464675Abstract: A method for operating an oil control valve in an internal combustion engine is provided. The oil control valve controls a camshaft phaser disposed at an output side of the control valve and includes a spool disposed in a spool housing. The camshaft phaser controls the phase relationship between a crankshaft of the internal combustion engine and a camshaft of the internal combustion engine. The method includes positioning the spool within the spool housing to substantially block oil flow between the camshaft phaser and the internal combustion engine when the engine is temporarily not running.Type: GrantFiled: November 30, 2010Date of Patent: June 18, 2013Assignee: Delphi Technologies, Inc.Inventors: James P. Waters, Daniel G. Gauthier
-
Publication number: 20120132165Abstract: A method for operating a camshaft phaser in an internal combustion engine is provided. The camshaft phaser is used to control the phase relationship between a crankshaft and a camshaft of the internal combustion engine. The method includes determining that the internal combustion engine will be placed in an automatic stop mode. The camshaft phaser is then controlled to establish a predetermined phase relationship between the crankshaft and the camshaft. The internal combustion engine is then placed in automatic stop mode and the predetermined phase relationship is maintained by substantially blocking oil flow between the camshaft phaser and the internal combustion engine.Type: ApplicationFiled: November 30, 2010Publication date: May 31, 2012Applicant: DELPHI TECHNOLOGIES, INC.Inventors: JAMES P. WATERS, Daniel G. Gauthier
-
Publication number: 20120132164Abstract: A method for operating an oil control valve in an internal combustion engine is provided. The oil control valve controls a camshaft phaser disposed at an output side of the control valve and includes a spool disposed in a spool housing. The camshaft phaser controls the phase relationship between a crankshaft of the internal combustion engine and a camshaft of the internal combustion engine. The method includes positioning the spool within the spool housing to substantially block oil flow between the camshaft phaser and the internal combustion engine when the engine is temporarily not running.Type: ApplicationFiled: November 30, 2010Publication date: May 31, 2012Applicant: DELPHI TECHNOLOGIES, INC.Inventors: JAMES P. WATERS, Daniel G. Gauthier
-
Patent number: 8145404Abstract: A standard cam phasing OCV may be employed as a virtual check valve to choke the backflow of oil during negative cam torque conditions, including execution of a duty cycle command in an event-based manner. Normally, OCV duty cycle commands are made on a time basis, but for VCV the duty cycle output change must be synchronized with engine events. A method is disclosed for calculating and delivering the VCV duty cycle so that both time-based and event-based controls are maintained and work together. Phase alignment of response time of the OCV solenoid is based upon cam target wheel edges and is event-based. An initial phase rate vs. phase angle is monitored by the Engine Control Module (ECM). Adjustment of the phase angle is provided to achieve maximum cam position phase rate.Type: GrantFiled: August 15, 2008Date of Patent: March 27, 2012Assignee: Delphi Technologies, Inc.Inventors: Daniel G. Gauthier, Jeffrey M. Pfeiffer
-
Patent number: 8127728Abstract: A vane-type camshaft phaser for varying the timing of combustion valves including a first torsional bias spring disposed on a cover plate spring guide and grounded to the cover plate and to a slot in a spring retainer to urge the rotor toward an intermediate locking position from any position retarded of the locking position. A second torsional bias spring also anchored to the cover plate and spring retainer urges the rotor in the advance direction over the full range of phaser authority to compensate for added camshaft torque loads imposed by non-valve actuating functions such as driving a mechanical fuel pump.Type: GrantFiled: March 20, 2009Date of Patent: March 6, 2012Assignee: Delphi Technologies, Inc.Inventors: Thomas H. Fischer, Daniel G. Gauthier
-
Publication number: 20120053817Abstract: A method is provided for sensing the position of a camshaft in an internal combustion engine having a camshaft phaser for controllably varying the phase relationship between a crankshaft of the internal combustion engine and the camshaft, the camshaft phaser being actuated by an electric motor and having a gear reduction mechanism with a predetermined gear reduction ratio and rotational position means for determining the rotational position of the electric motor. The method includes generating a rotational position signal indicative of the rotational position of the electric motor by using the rotational position means to determine the rotational position of the electric motor and calculating the position of the camshaft based on the rotational position signal and the gear reduction ratio of the gear reduction mechanism.Type: ApplicationFiled: August 23, 2011Publication date: March 1, 2012Applicant: DELPHI TECHNOLOGIES, INC.Inventors: DANIEL G. GAUTHIER, SEBASTIEN STOLTZ-DOUCHET, JEFFREY M PFEIFFER
-
Publication number: 20100042306Abstract: A standard cam phasing OCV may be employed as a virtual check valve to choke the backflow of oil during negative cam torque conditions, including execution of a duty cycle command in an event-based manner. Normally, OCV duty cycle commands are made on a time basis, but for VCV the duty cycle output change must be synchronized with engine events. A method is disclosed for calculating and delivering the VCV duty cycle so that both time-based and event-based controls are maintained and work together. Phase alignment of response time of the OCV solenoid is based upon cam target wheel edges and is event-based. An initial phase rate vs. phase angle is monitored by the Engine Control Module (ECM). Adjustment of the phase angle is provided to achieve maximum cam position phase rate.Type: ApplicationFiled: August 15, 2008Publication date: February 18, 2010Inventors: Daniel G. Gauthier, Jeffrey M. Pfeiffer
-
Publication number: 20090235884Abstract: A vane-type camshaft phaser for varying the timing of combustion valves including a first torsional bias spring disposed on a cover plate spring guide and grounded to the cover plate and to a slot in a spring retainer to urge the rotor toward an intermediate locking position from any position retarded of the locking position. A second torsional bias spring also anchored to the cover plate and spring retainer urges the rotor in the advance direction over the full range of phaser authority to compensate for added camshaft torque loads imposed by non-valve actuating functions such as driving a mechanical fuel pump.Type: ApplicationFiled: March 20, 2009Publication date: September 24, 2009Inventors: Thomas H. Fischer, Daniel G. Gauthier
-
Publication number: 20080136404Abstract: A camshaft phaser system includes an oil control spool valve having two opposing springs to center the spool at a rest position to lock the phaser rotor by blocking supply/vent to both the C1 and C2 chambers, obviating a conventional locking pin mechanism. A double-acting solenoid actuator moves the spool to first and second positions, supplying or venting C1 and C2, respectively. The rotor may be locked hydraulically at any position between full advance and full retard. A system for monitoring the rotational positions of the crankshaft and camshaft includes magnets disposed on opposite sides of the shaft axis. A magnetic sensing element senses the rotational direction of the magnetic field for each position of the shaft. An engine control module uses the position signal and an algorithm to lock the rotor at a desired position.Type: ApplicationFiled: February 11, 2008Publication date: June 12, 2008Inventors: Daniel G. Gauthier, Michael A. Kozan, John H. Waller, Daniel J. Moreno, Sergio Quelhas
-
Patent number: 5230308Abstract: A direct acting hydraulic valve lifter features in a preferred embodiment a follower assembled with a thin wall metal shell and a light plastic baffle to support a lash adjusting hydraulic element assembly. An inlet riser chamber has sufficient cross section to minimize oil flow restriction in cold oil conditions. Dead space between the shell and baffle is filled with a strong lightweight foam to support and retain the baffle and displace oil for low mass.Type: GrantFiled: November 17, 1992Date of Patent: July 27, 1993Assignee: General Motors CorporationInventors: Daniel G. Gauthier, Donald G. Engel, John J. Krieg, Michael J. Warden, Werner Herrmann, Richard K. Donoghue, Gary J. De Angelis