Patents by Inventor Matthias Gregor
Matthias Gregor 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).
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Patent number: 8474421Abstract: In a valve drive train device, in particular for a valve drive of an internal combustion engine, with a switching unit comprising an actuator with a solenoid unit and with a control unit for monitoring switching operations of the switching unit provided for switching an axially displaceable cam element by means of a switch gate, the control unit for monitoring the switching unit is taking into account at least one characteristic value of a voltage integral over a voltage which is induced in a coil of the switching unit during the switching operation and is adjusting the value with respect to a characteristic limit value stored in the control unit.Type: GrantFiled: November 5, 2010Date of Patent: July 2, 2013Assignee: Daimler AGInventors: Matthias Gregor, Richard Jakobi
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Publication number: 20110159339Abstract: The invention relates to a battery with a heat conducting plate for controlling the temperature of the battery. The battery comprises a plurality of single cells connected in parallel and/or in series to each other, the cells being connected to the heat conducting plate in a heat conducting manner. In the heat conducting plate, a channel structure for a heat conducting medium is provided. In the region of the poles of the single cells, the heat conducting plate comprises bores through which the poles of the single cells extend.Type: ApplicationFiled: February 26, 2008Publication date: June 30, 2011Applicant: Daimler AGInventors: Matthias Gregor, Rainer Kaufmann, Volker Keck, Arnold Lamm, Jens Meintschel, Dirk Schroeter, Petra Schulz, Wolfgang Warthmann
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Publication number: 20110088643Abstract: In a valve drive train device, in particular for a valve drive of an internal combustion engine, with a switching unit comprising an actuator with a solenoid unit and with a control unit for monitoring switching operations of the switching unit provided for switching an axially displaceable cam element by means of a switch gate, the control unit for monitoring the switching unit is taking into account at least one characteristic value of a voltage integral over a voltage which is induced in a coil of the switching unit during the switching operation and is adjusting the value with respect to a characteristic limit value stored in the control unit.Type: ApplicationFiled: November 5, 2010Publication date: April 21, 2011Inventors: Matthias Gregor, Richard Jakobi
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Patent number: 7827945Abstract: In a camshaft operating unit having a friction torque variation simulation arrangement for controlling a camshaft adjustment device with at least two camshafts one of which is at least adjustable camshaft and at least one camshaft adjusting unit, the friction torque variation simulation arrangement is provided to simulate a friction torque camshaft required to rotate the camshaft.Type: GrantFiled: November 26, 2007Date of Patent: November 9, 2010Assignee: Daimler AGInventors: Matthias Gregor, Jens Meintschel, Thomas Stolk, Alexander Von Gaisberg-Helfenberg
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Patent number: 7802548Abstract: In a camshaft adjusting device for adjusting a phase position of a camshaft, including a rotary actuator having a stator and at least one axially displaceable rotor and including a gear mechanism which is arranged operatively between two of at least three shafts, one of the shafts being a control shaft which is acted upon by the rotary actuator, one of the shafts being a drive shaft which is connected to the crankshaft, and one of the shafts being an output shaft which is connected to the camshaft, a compact locking structure is provided whereby at least two of the at least three shafts can be locked to one another in a rotationally fixed manner by a spring depending on operating conditions and released by an auxiliary coil which, upon energization, provides for axial movement of the rotor out of its locked position to permit adjustment thereof.Type: GrantFiled: November 13, 2007Date of Patent: September 28, 2010Assignee: Daimler AGInventors: Matthias Gregor, Jens Meintschel, Tilmann R{hacek over (o)}mheld, Petra Schulz, Thomas Stolk, Alexander von Gaisberg-Helfenberg
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Patent number: 7687955Abstract: In a braking device for a camshaft adjuster of an internal combustion engine wherein the camshaft adjuster includes at least two adjustment inputs, a respective braking element is provided for each adjustment input to brake the respective adjustment input, the braking elements being operable by an excitation coil arrangement, which, depending on the direction of energization of an excitation coil arrangement, subjects either the one or the other braking element to magnetic flux for initiating braking of the respective adjustment input.Type: GrantFiled: November 17, 2006Date of Patent: March 30, 2010Assignee: Daimler AG.Inventors: Andreas Eichenberg, Matthias Gregor, Jens Meintschel
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Patent number: 7661399Abstract: In a camshaft adjusting device including a positioning actuator for adjusting a phase position of a camshaft with respect to a crankshaft of an internal combustion engine, wherein the camshaft is driven by the crankshaft via a drive input, and a base drive torque of the camshaft is provided by a positioning actuator, a spring element is arranged between the camshaft and the crankshaft and has a spring torque selected so as to compensate for at least part of a mean load torque of a load unit connected to the camshaft to be driven thereby and at most only a part of the base drive torque.Type: GrantFiled: November 16, 2007Date of Patent: February 16, 2010Assignee: Daimler AGInventors: Matthias Gregor, Jens Meintschel, Thomas Stolk, Alexander Von Gaisberg-Helfenberg
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Patent number: 7568455Abstract: In a method and device for adjusting an electro-dynamic brake of an electric camshaft adjuster for a phase angle adjustment of a camshaft of an internal combustion engine with respect to the crankshaft thereof, the phase angle is controlled by means of a position controller and the adjustment speed of the phase angle of the camshaft with respect to the crankshaft is controlled by means of an adjustment speed controller by controlling the current through the electro-dynamic brake by means of a further adjustment device and the use of Pilot controls to improve the control behavior of the cascade controller.Type: GrantFiled: June 22, 2007Date of Patent: August 4, 2009Assignee: Daimler AGInventors: Lorenzo Giovanardi, Matthias Gregor, Jens Meintschel, Reinhard Orthmann, Bernd-Heinrich Schmitfranz, Markus Stalitza
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Publication number: 20080284414Abstract: A hysteresis brake is provided, such as for an electric camshaft adjuster, has with an excitation coil, a stator with an inner and outer stator part, and a moveable rotor with a hysteresis band which is movable between the inner and outer stator part. The excitation coil, which produces a main magnetic flux for a magnetic adjuster is arranged between the inner and outer stator part. A sensor enables the rotor and/or the hysteresis band to receive a secondary magnetic flux caused by the main magnetic flux, or enables the excitation coil to receive the main flux. An evaluation and control unit evaluates the magnetic flux received and determines angle and/or rotational speed information from detected changes of the magnetic flux.Type: ApplicationFiled: April 28, 2005Publication date: November 20, 2008Applicant: DaimlerChrysler AGInventors: Lorenzo Giovanardi, Matthias Gregor, Jens Meintschel, Bernd-Heinrich Schmitfranz, Guenter Stoehr
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Patent number: 7451731Abstract: In a camshaft adjusting device for adjusting a phase position of a camshaft relative to a crankshaft of an internal combustion engine with a gear mechanism including at least three drive connections, a locking element is provided, with which at least two of the at least three drive connections, can be locked to one another in a rotationally fixed manner depending on operating conditions for retaining a particular phase position of the camshaft relative to the crankshaft of the internal combustion engine.Type: GrantFiled: January 9, 2007Date of Patent: November 18, 2008Assignee: Daimler AGInventors: Andreas Eichenberg, Matthias Gregor, Jens Meintschel
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Publication number: 20080153603Abstract: In a camshaft adjusting device for an internal combustion engine, wherein the adjustmen device includes a brake unit which has at least one eddy-current brake for generating a braking torque (Mb) which correlates with a phase angle of a camshaft, a supplementary unit is provided to at least supplement the eddy-current brake with respect to its adjusting function in at least one operating range.Type: ApplicationFiled: December 18, 2007Publication date: June 26, 2008Inventors: Matthias Gregor, Jens Meintschel, Thomas Stolk, Alexander von Gaisberg-Helfenberg
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Publication number: 20080141963Abstract: In a camshaft operating unit having a friction torque variation simulation arrangement for controlling a camshaft adjustment device with at least two camshafts one of which is at least adjustable camshaft and at least one camshaft adjusting unit, the friction torque variation simulation arrangement is provided to simulate a friction torque camshaft required to rotate the camshaft.Type: ApplicationFiled: November 26, 2007Publication date: June 19, 2008Inventors: Matthias Gregor, Jens Meintschel, Thomas Stolk, Alexander Von Gaisberg-Helfenberg
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Publication number: 20080105079Abstract: In a camshaft adjusting device including a positioning actuator for adjusting a phase position of a camshaft with respect to a crankshaft of an internal combustion engine, wherein the camshaft is driven by the crankshaft via a drive input, and a base drive torque of the camshaft is provided by a positioning actuator, a spring element is arranged between the camshaft and the crankshaft and has a spring torque selected so as to compensate for at least part of a mean load torque of a load unit connected to the camshaft to be driven thereby and at most only a part of the base drive torque.Type: ApplicationFiled: November 16, 2007Publication date: May 8, 2008Applicant: KLAUS J. BACH & ASSOCIATESInventors: Matthias Gregor, Jens Meintschel, Thomas Stolk, Alexander Gaisberg-Helfenberg
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Publication number: 20080105078Abstract: In a camshaft adjusting device for adjusting a phase position of a camshaft, including a rotary actuator having a stator and at least one axially displaceable rotor and including a gear mechanism which is arranged operatively between two of at least three shafts, one of the shafts being a control shaft which is acted upon by the rotary actuator, one of the shafts being a drive shaft which is connected to the crankshaft, and one of the shafts being an output shaft which is connected to the camshaft, a compact locking structure is provided whereby at least two of the at least three shafts can be locked to one another in a rotationally fixed manner by a spring depending on operating conditions and released by an auxiliary coil which, upon energization, provides for axial movement of the rotor out of its locked position to permit adjustment thereof.Type: ApplicationFiled: November 13, 2007Publication date: May 8, 2008Inventors: Matthias Gregor, Jens Meintschel, Tilmann Romheld, Petra Schulz, Thomas Stolk, Alexander von Gaisenberg-Helfenberg
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Publication number: 20080029051Abstract: In a method and device for adjusting an electro-dynamic brake of an electric camshaft adjuster for a phase angle adjustment of a camshaft of an internal combustion engine with respect to the crankshaft thereof, the phase angle is controlled by means of a position controller and the adjustment speed of the phase angle of the camshaft with respect to the crankshaft is controlled by means of an adjustment speed controller by controlling the current through the electro-dynamic brake by means of a further adjustment device and the use of Pilot controls to improve the control behavior of the cascade controller.Type: ApplicationFiled: June 22, 2007Publication date: February 7, 2008Inventors: Lorenzo Giovanardi, Matthias Gregor, Jens Meintschel, Reinhard Orthmann, Bernd-Heinrich Schmitfranz, Markus Stalitza
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Publication number: 20080006232Abstract: In a method and apparatus for coupling or decoupling two actuating elements of a valve drive of an internal combustion engine for operating a gas exchange valve, comprising a locking element movable between two end positions for coupling the actuating elements, an electromagnet for actuating the movable locking element, a permanent magnet is associated with the armature for holding the armature and the locking element in one end position and means for biasing the armature and the locking element in the opposite end position, the electromagnet is energizable in one sense for moving the armature into one end position in which the armature is retained by the permanent magnet with a force greater than a counteracting force generated by the biasing means, and in the opposite sense so as to generate a force exceeding that of the permanent magnet for moving the armature in the opposite end position, where it is retained by said biasing means.Type: ApplicationFiled: August 8, 2007Publication date: January 10, 2008Inventors: Matthias Gregor, Jens Meintschel, Tilmann Romheld, Thomas Stolk, Alexander Gaisberg-Helfenberg
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Publication number: 20070157897Abstract: In an apparatus for adjusting a phase position of a camshaft in relation to a crankshaft which drives the camshaft, including an electric actuator for operating an adjustment mechanism, which can move the camshaft to a basic or emergency-operating position in the event of a shut-down as a result of an operational fault, the emergency-operating position can be reliably reached with the aid of the electric actuator which is supplied with energy by an energy supply that is separate from an operational energy supply and which is capable of moving the adjustment mechanism to the emergency-operating position. Also, a method for operating an apparatus for adjusting a phase position of a camshaft is provided.Type: ApplicationFiled: February 5, 2007Publication date: July 12, 2007Inventors: Matthias Gregor, Jens Meintschel, Thomas Stolk, Alexander von Gaisberg-Helfenberg
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Publication number: 20070144476Abstract: In a camshaft adjusting device for adjusting a phase position of a camshaft relative to a crankshaft of an internal combustion engine with a gear mechanism including at least three drive connections, a locking element is provided, with which at least two of the at least three drive connections, can be locked to one another in a rotationally fixed manner depending on operating conditions for retaining a particular phase position of the camshaft relative to the crankshaft of the internal combustion engine.Type: ApplicationFiled: January 9, 2007Publication date: June 28, 2007Inventors: Andreas Eichenberg, Matthias Gregor, Jens Meintschel
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Publication number: 20070101714Abstract: In an exhaust gas turbocharger for an internal combustion engine comprising a compressor and a turbine interconnected by a shaft in a rotationally fixed manner, and an electric machine which can be connected to the exhaust gas turbocharger via a clutch, the exhaust gas turbocharger can be driven at least temporarily by a disk-shaped flywheel rotatably supported on the shaft and being operable selectively by the turbine and by an electro-dynamic structure for improving the response behavior of the exhaust gas turbocharger.Type: ApplicationFiled: December 2, 2006Publication date: May 10, 2007Inventors: Markus Duesmann, Matthias Gregor, Jens Meintschel, Thomas Stolk, Alexander Gaisberg-Helfenberg
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Publication number: 20070095319Abstract: In a braking device for a camshaft adjuster of an internal combustion engine wherein the camshaft adjuster includes at least two adjustment inputs, a respective braking element is provided for each adjustment input to brake the respective adjustment input, the braking elements being operable by an excitation coil arrangement, which, depending on the direction of energization of an excitation coil arrangement, subjects either the one or the other braking element to magnetic flux for initiating braking of the respective adjustment input.Type: ApplicationFiled: November 17, 2006Publication date: May 3, 2007Inventors: Andreas Eichenberg, Matthias Gregor, Jens Meintschel