Patents by Inventor Matthias Schultalbers
Matthias Schultalbers 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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Publication number: 20220187772Abstract: The invention relates to a computer-implemented method for the probabilistic prediction of sensor data. Starting from existing time curves of a target variable and optionally from further auxiliary variables, an RCGAN according to the invention is able to calculate the probability distribution of future values of the target variable and to predict the future values of the target variable therefrom. The predicted future values of the target variable can be fed back to the technical system in which the method according to the invention is used so that the latter can adjust parameters on the basis of the obtained findings. The prediction of the filling amount of cylinders of an internal combustion engine is used here as a specific technical application.Type: ApplicationFiled: March 10, 2020Publication date: June 16, 2022Inventors: Matthias Schultalbers, Peter Schichtel, Alireza Koochali, Sheraz Ahmed
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Patent number: 10795349Abstract: A method for testing software of an electronic control unit of a vehicle includes, in a first step, executing a driving cycle, whereby input quantities and output quantities of the electronic control unit are recorded. In an additional step, the driving cycle in accordance with the first step is repeated without once again executing the driving cycle with the vehicle on the testing device so that additional output quantities are made available. It is ascertained that the software comprises a function that recognizes whether a driving cycle is being executed with the vehicle, based on there being a deviation between at least one output quantity that had been recorded in the first step and the corresponding output quantity provided in accordance with the additional step. Based thereon, a function of the electronic control unit is excluded from being further developed or processed during a subsequent development step.Type: GrantFiled: August 4, 2017Date of Patent: October 6, 2020Assignee: IAV GMBH INGENIEURGESELLSCHAFT AUTO UND VERKEHRInventors: Matthias Schultalbers, Hans-Martin Schulz, Helmut Naujoks
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Publication number: 20180329408Abstract: A method for testing software of an electronic control unit of a vehicle includes, in a first step, executing a driving cycle, whereby input quantities and output quantities of the electronic control unit are recorded. In an additional step, the driving cycle in accordance with the first step is repeated without once again executing the driving cycle with the vehicle on the testing device so that additional output quantities are made available. It is ascertained that the software comprises a function that recognizes whether a driving cycle is being executed with the vehicle, based on there being a deviation between at least one output quantity that had been recorded in the first step and the corresponding output quantity provided in accordance with the additional step. Based thereon, a function of the electronic control unit is excluded from being further developed or processed during a subsequent development step.Type: ApplicationFiled: August 4, 2017Publication date: November 15, 2018Inventors: Matthias Schultalbers, Hans-Martin Schulz, Helmut Naujoks
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Patent number: 9470159Abstract: A method for determining the proportion of gaseous working medium in a cylinder of an internal combustion engine includes opening an injector so as to feed fuel directly into the cylinder. The injector is connected to a fuel line in which a pressure sensor is arranged. The pressure in the fuel line is measured when the injector is open. The proportion of gaseous working medium in the cylinder is determined in conjunction with an association between the measured pressure in the fuel line when the injector is open and the proportion of gaseous working medium in the cylinder.Type: GrantFiled: January 31, 2013Date of Patent: October 18, 2016Assignee: 1AV GMBH INGENIEURGESELLSCHAFT AUTO UND VERKEHRInventors: Wolfram Gottschalk, Franz Kallage, Christian Riechert, Matthias Schultalbers
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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: 9212617Abstract: A method for recognizing irregular combustion in an internal combustion engine includes supplying fuel directly to a combustion chamber of a cylinder of the internal combustion engine using an injector. The injector is connected to a fuel supply line that includes a pressure sensor configured to measure pressure in the fuel supply line. The pressure in the fuel supply line is measured during the supply of fuel into the combustion chamber. It is then ascertaining whether irregular combustion is occurring based on the measured pressure in the fuel supply line.Type: GrantFiled: December 14, 2011Date of Patent: December 15, 2015Assignee: IAV GMBH INGENIEURGESELLSCHAFT AUTO UND VERKEHRInventors: Wolfram Gottschalk, Ulf Lezius, Matthias Schultalbers, Samuel Trebesius
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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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Publication number: 20130268180Abstract: A method for recognizing irregular combustion in an internal combustion engine includes supplying fuel directly to a combustion chamber of a cylinder of the internal combustion engine using an injector. The injector is connected to a fuel supply line that includes a pressure sensor configured to measure pressure in the fuel supply line. The pressure in the fuel supply line is measured during the supply of fuel into the combustion chamber. It is then ascertaining whether irregular combustion is occurring based on the measured pressure in the fuel supply line.Type: ApplicationFiled: December 14, 2011Publication date: October 10, 2013Applicant: IAV GMBH INGENIEURGESELLSCHAFT AUTO UND VERKEHRInventors: Wolfram Gottschalk, Ulf Lezius, Matthias Schultalbers, Samuel Trebesius
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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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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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Patent number: 7706959Abstract: A method is for adjusting a fuel/air ratio by means of an on-off controller as well as a diagnostic method in which a desired fuel/air mixture is regulated in accordance with a test signal of a lambda probe that is embodied as a jump probe. The switching point of the on-off controller is moved/adapted while the oscillation of the test signal of the lambda probe is analyzed regarding the amplitude and/or the asymmetry of the oscillation around the switching point at a constant control stroke. A desired value for the asymmetry or the amplitude of the oscillation of the test signal of the lambda probe around the respective switching point is predefined, the switching point of the on-off controller being moved such that the desired value is reached.Type: GrantFiled: March 24, 2007Date of Patent: April 27, 2010Assignee: IAV GmbH Ingenieurgesellschaft Auto und VerkehrInventors: Sven Bruhn, Matthias Schultalbers, Thomas Von Der Ohe
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Patent number: 7650954Abstract: A method for controlling the drive power distribution in a motor vehicle with hybrid drive by controlling the drive power distribution of torques of an internal combustion engine and an electric motor on a common drive train of a motor vehicle with hybrid drive. The conversion of a reference moment to an actual moment takes place almost without delay, in the case of a load point shift and/or in the case of a change in the moment desired by the driver. The delay in the conversion of reference moments into actual moments is calculated in advance by means of a control device, and the electric motor is controlled by the control device in such a manner that the torque differences that occur due to the delay of the internal combustion engine are balanced out by the electric motor.Type: GrantFiled: July 12, 2006Date of Patent: January 26, 2010Assignee: IAV GmbH Ingenieurgesellschaft Auto und VerkehrInventors: Axel Ibenthal, Thomas Proske, Matthias Schultalbers, Stefan Spannhake
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Publication number: 20090138182Abstract: The invention relates to a method for adjusting a fuel/air ratio by means of an on-off controller as well as a diagnostic method in which a desired fuel/air mixture is regulated in accordance with a test signal of a lambda probe that is embodied as a jump probe. The switching point of the on-off controller is moved/adapted while the oscillation of the test signal of the lambda probe is analyzed regarding the amplitude and/or the asymmetry of the oscillation around the switching point at a constant control stroke. A desired value for the asymmetry or the amplitude of the oscillation of the test signal of the lambda probe around the respective switching point is predefined, the switching point of the on-off controller being moved such that the desired value is reached.Type: ApplicationFiled: March 24, 2007Publication date: May 28, 2009Inventors: Sven Bruhn, Matthias Schultalbers, Thomas Von Der Ohe
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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: 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
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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