Patents by Inventor Olaf Magnor
Olaf Magnor 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: 9835162Abstract: A method is used for determining an operating point of a compressor that includes at least one impeller, compressor blades attached to the impeller, a housing and at least two sensors. The method includes calculating a deflection of the compressor blades. An operating point and a surge margin with respect to a surge limit are determined based on the calculating of the deflection by measuring passage times of the compressor blades at a sensor. A signal that is representative of a rotation speed is determined and is associated with the compressor impeller. In a learning or adaptation mode, compressor blade-specific, state-induced and position-induced deviations from an ideal state are determined using compressor blade-specific passage times that are measured and compared with ideal passage times. In a working mode, compressor blade-specific passage times are measured and the compressor blade-specific passage times are corrected using the determined state-induced and position-induced deviations.Type: GrantFiled: September 19, 2011Date of Patent: December 5, 2017Assignee: IAV GMBH INGENIEURGESELLSCHAFT AUTO UND VERKEHRInventors: Malte Koeller, Olaf Magnor, Daniel Reitebuch
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Patent number: 9279381Abstract: To prevent particle emissions, the start of injection of an internal combustion engine is controlled as a function of a detected dynamics of an operating parameter of the internal combustion engine. The dynamics is detected by comparing the temporal change of the operating parameter to a threshold value. The control may be carried out such that, in particular, a value of the start of injection, determined with the aid of a regulation, is frozen for a specific holding period following the detection of the dynamics.Type: GrantFiled: September 13, 2011Date of Patent: March 8, 2016Assignee: VOLKSWAGEN AGInventors: Eike Bunsen, Rene Fink, Kay Schintzel, Matthias Schultalbers, Olaf Magnor
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Patent number: 9080546Abstract: A method is provided for equalizing the cylinders of a multi-cylinder internal combustion engine. The internal combustion engine is configured as a reciprocating engine having direct injection and spark ignition. A fuel mass is injected in a cylinder-specific manner, and a cylinder-specific air mass and a cylinder-specific ignition time are each adjustable. An injection amount is equalized, then a charge is equalized and then a mean combustion pressure is equalized.Type: GrantFiled: February 15, 2012Date of Patent: July 14, 2015Assignee: IAV GMBH INGENIEURGESELLSCHAFT AUTO UND VERKEHRInventors: Wolfram Gottschalk, Olaf Magnor, Matthias Schultalbers, Christian Steinbrecher
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Patent number: 9004045Abstract: A deaeration and cooling system for a fuel tank of an internal combustion engine includes an absorption refrigerator configured to cool fuel in the fuel tank. The absorption refrigerator includes a burner, an evaporator and an exhaust-gas heat exchanger. Thermal energy for operating the absorption refrigerator is obtained from the combustion of evaporated fuel. The evaporated fuel is removed from the fuel tank and supplied to the burner of the absorption refrigerator.Type: GrantFiled: February 27, 2012Date of Patent: April 14, 2015Assignee: Iav GmbH Ingenieurgesellschaft Auto und VerkehrInventors: Joachim Seydell, Markus Seemayer, Frank Stegemann, Olaf Magnor, Daniel Beese, Daniel Reitebuch, Matthias Schultalbers
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Publication number: 20130340725Abstract: A deaeration and cooling system for a fuel tank of an internal combustion engine includes an absorption refrigerator configured to cool fuel in the fuel tank. The absorption refrigerator includes a burner, an evaporator and an exhaust-gas heat exchanger. Thermal energy for operating the absorption refrigerator is obtained from the combustion of evaporated fuel. The evaporated fuel is removed from the fuel tank and supplied to the burner of the absorption refrigerator.Type: ApplicationFiled: February 27, 2012Publication date: December 26, 2013Applicant: IAV GMBH INGENIEURGESELLSCHAFT AUTO UND VERKEHRInventors: Joachim Seydell, Markus Seemayer, Frank Stegemann, Olaf Magnor, Daniel Beese, Daniel Reitebuch, Matthias Schultalbers
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Patent number: 8555862Abstract: A system provides reliable tank ventilation, particularly in the case of supercharged internal combustion engines, while also assuring efficient operation of the internal combustion engine. A tank is connected with an adsorption filter by way of a first tank ventilation line. The adsorption filter is connected with the intake line of the internal combustion engine by way of a second tank ventilation line. A drive apparatus includes a turbine wheel and a pump wheel coupled with one another. The pump wheel is disposed in the second tank ventilation line. The turbine wheel is disposed in a bridging line branching off from the intake line and flowing into the intake line. The bridging line branches off from the intake line downstream from a compressor disposed in the intake line.Type: GrantFiled: January 27, 2010Date of Patent: October 15, 2013Assignee: IAV GmbH Ingenieurgesellschaft Auto und VerkehrInventors: Wolfram Gottschalk, Olaf Magnor, Daniel Reitebuch, Franziska Schulz
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Publication number: 20130223981Abstract: A method is used for determining an operating point of a compressor that includes at least one impeller, compressor blades attached to the impeller, a housing and at least two sensors. The method includes calculating a deflection of the compressor blades. An operating point and spacing of the blades is determined with respect to a surge limit based on the calculating of the deflection by measuring passage times of the compressor blades at a sensor. A signal that is representative of a rotation speed is determined and is associated with the compressor impeller. In a learning or adaptation mode, compressor blade-specific, state-induced and position-induced deviations from an ideal state are determined using compressor blade-specific passage times that are measured and compared with ideal passage times. In a working mode, compressor blade-specific passage times are measured and the compressor blade-specific passage times are corrected using the determined state-induced and position-induced deviations.Type: ApplicationFiled: September 19, 2011Publication date: August 29, 2013Applicant: IAV GMBH INGENIEURGESELLSCHAFT AUTO UND VERKEHRInventors: Malte Koeller, Olaf Magnor, Daniel Reitebuch
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Publication number: 20120204830Abstract: A method is provided for equalizing the cylinders of a multi-cylinder internal combustion engine. The internal combustion engine is configured as a reciprocating engine having direct injection and spark ignition. A fuel mass is injected in a cylinder-specific manner, and a cylinder-specific air mass and a cylinder-specific ignition time are each adjustable. An injection amount is equalized, then a charge is equalized and then a mean combustion pressure is equalized.Type: ApplicationFiled: February 15, 2012Publication date: August 16, 2012Applicant: IAV GMBH INGENIEURGESELLSCHAFT AUTO UND VERKEHRInventors: Wolfram Gottschalk, Olaf Magnor, Matthias Schultalbers, Christian Steinbrecher
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Publication number: 20120065865Abstract: To prevent particle emissions, the start of injection of an internal combustion engine is controlled as a function of a detected dynamics of an operating parameter of the internal combustion engine. The dynamics is detected by comparing the temporal change of the operating parameter to a threshold value. The control may be carried out such that, in particular, a value of the start of injection, determined with the aid of a regulation, is frozen for a specific holding period following the detection of the dynamics.Type: ApplicationFiled: September 13, 2011Publication date: March 15, 2012Inventors: Eike Bunsen, Rene Fink, Kay Schintzel, Matthias Schultalbers, Olaf Magnor
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Publication number: 20110076936Abstract: It is the task of the invention to expand the state of the art in such a manner that reliable tank ventilation is assured, particularly in the case of supercharged internal combustion engines (1), while also assuring the most efficient operation possible of the underlying internal combustion engine (1).Type: ApplicationFiled: January 27, 2010Publication date: March 31, 2011Inventors: Wolfram Gottschalk, Olaf Magnor, Daniel Reitebuch, Franziska Schulz
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Patent number: 7809489Abstract: A method for estimating the cylinder interior pressure of an internal combustion engine from a cylinder pressure model having at least the input variables load, speed of rotation, and crank angle (Ppressure model), which forms the cylinder interior pressure (Pgas) to be determined, corrected by a pressure correction value (?Pgas). The pressure correction value (?Pgas) is determined from an observation of the alternating moments at the crankshaft. The modeled value of the cylinder interior pressure from the pressure model is obtained as a pre-control value, and corrected with a correction value formed from the measured value of the non-uniformity of rotation.Type: GrantFiled: November 8, 2007Date of Patent: October 5, 2010Assignee: IAV GmbH Ingenieurgesellschaft Auto und VerkehrInventors: Malte Koeller, Ulf Lezius, Olaf Magnor, Michael Schnaubelt, Matthias Schultalbers
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Patent number: 7805237Abstract: A method for operating an internal combustion engine having a combustion method with homogeneous auto ignition. A driver's demand, predetermined by the gas pedal, is converted into a desired torque to be given off by the engine. A reference charge value for the air charge is determined by a working-point-dependent lambda value (?opt) that can be predetermined. Based on this, a throttle valve position is set. Parallel to this, a desired torque is calculated for the fuel path with a reference lambda value, and an actual charge is calculated to yield a fuel amount to be injected. The reference lambda value results from an optimal lambda value for the mode of operation of homogeneous compression ignition, as long as the lambda value is within the rich and lean limits, respectively, of the combustion method of homogeneous compression ignition. The fuel mass is varied within the rich and lean limits to compensate dynamic processes.Type: GrantFiled: November 8, 2007Date of Patent: September 28, 2010Assignee: IAV GmbH Ingenieurgesellschaft Auto und VerkehrInventors: Thomas Boehme, Wolfram Gottschalk, Olaf Magnor, Michael Schnaubelt, Matthias Schultalbers
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Publication number: 20080215227Abstract: A method for operating an internal combustion engine having a combustion method with homogeneous auto ignition. A driver's demand, predetermined by the gas pedal, is converted into a desired torque to be given off by the engine. A reference filling value for the air filling is determined by a working-point-dependent lambda value (?opt) that can be predetermined. Based on this, a throttle valve position is set. Parallel to this, a desired torque is calculated for the fuel path with a reference lambda value, and an actual filling is calculated to yield a fuel amount to be injected. The reference lambda value results from an optimal lambda value for the mode of operation of homogeneous compression ignition, as long as the lambda value is within the rich and lean limits, respectively, of the combustion method of homogeneous compression ignition. The fuel mass is varied within the rich and lean limits to compensate dynamic processes.Type: ApplicationFiled: November 8, 2007Publication date: September 4, 2008Inventors: Thomas Boehme, Wolfram Gottschalk, Olaf Magnor, Michael Schnaubelt, Matthias Schultalbers
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Publication number: 20080105232Abstract: A method for switching the modes of operation of an internal combustion engine switches between a method of homogeneous compression ignition and a conventional combustion method. The operating ranges of the modes of operation are defined at least by way of speed of rotation and load, and a switch between the operating ranges takes place as a function of the current operating point and of quantifiable characteristics of the trajectory as well as of the distance of the current operating point from the range limit of the operating range. Characteristics of the trajectory are the current movement direction and/or the speed of approach of the operating point to the range limit.Type: ApplicationFiled: November 8, 2007Publication date: May 8, 2008Inventors: Thomas Boehme, Stefan Linka, Olaf Magnor, Michael Schnaubelt, Matthias Schultalbers
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Publication number: 20080105233Abstract: A method for estimating the cylinder interior pressure of an internal combustion engine from a cylinder pressure model having at least the input variables load, speed of rotation, and crank angle (Ppressure model), which forms the cylinder interior pressure (Pgas) to be determined, corrected by a pressure correction value (?Pgas). The pressure correction value (?Pgas) is determined from an observation of the alternating moments at the crankshaft. The modeled value of the cylinder interior pressure from the pressure model is obtained as a pre-control value, and corrected with a correction value formed from the measured value of the non-uniformity of rotation.Type: ApplicationFiled: November 8, 2007Publication date: May 8, 2008Inventors: Malte Koeller, Ulf Lezius, Olaf Magnor, Michael Schnaubelt, Matthias Schultalbers