Patents by Inventor Christina Sauer
Christina Sauer 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).
-
Publication number: 20150107550Abstract: A method is proposed for controlling and regulating an internal combustion engine according to the HCCI combustion method, in which a first fuel in a basic mixture is ignited using a pilot fuel, and in which the fuel quantities of the first fuel and the pilot fuel are changed to represent an operating point of the internal combustion engine. The invention is characterized in that a target combustion energy (VE(SL)) is calculated as a function of a power demand and, based on the target combustion energy (VE(SL)), the fuel quantity of the first fuel and the fuel quantity of the pilot fuel are determined using a distribution factor (CHI), wherein the distribution factor (CHI) is calculated as a function of an actual combustion position (VL(IST)) to a target combustion position (VL(SL)) using a combustion position controller (18).Type: ApplicationFiled: April 15, 2013Publication date: April 23, 2015Applicant: MTU Friedrichshafen GmbHInventors: Jörg Remele, Christina Sauer, Aron Toth, Andreas Flohr, Alexander Bernhard, Florian Bach, Erika Schaefer, Ulrich Spicher, Christoph Teetz
-
Patent number: 8532909Abstract: Suggested is a procedure for operating a self-igniting Otto engine (OM) with at least one inlet valve (14), with one or several variably controllable outlet valves (15), with a sensor (21) for a continuous detection of an air-fuel-ratio (?) of the Otto engine (OM) and with a sensor (22) for detecting an engine speed n of the Otto engine (OM), whereby the fuel is directly injected into at least one combustion chamber (10) and whereby the Otto engine (OM) is operated in such a way, that a desired combustion focus (MFB50%set) is adjusted. The procedure is thereby characterized, in that the self-igniting moment of the fuel is influenced by an injection moment depending on a combustion focus (MFB50%set). An independent claim relates to a control unit that is customized for controlling the process of the procedure.Type: GrantFiled: September 9, 2010Date of Patent: September 10, 2013Assignee: Robert Bosch GmbHInventors: Andre F Casal Kulzer, Roland Karrelmeyer, Christina Sauer
-
Publication number: 20120173125Abstract: The invention relates to a method for operating an internal combustion engine and a combustion chamber for such an internal combustion engine. According to the method, a thinned base mixture is ignited by additionally injecting a pilot fuel at an injection point in time, wherein the injection point in time of the pilot fuel is selected such that the pilot fuel is not fully homogenized with the base mixture.Type: ApplicationFiled: June 24, 2010Publication date: July 5, 2012Applicant: MTU Friedrichshafen GmbHInventors: Carsten Baumgarten, Johannes Eichmeier, Christina Sauer, Arne Schneemann, Ulrich Spicher, Christoph Teetz
-
Publication number: 20110066355Abstract: Suggested is a procedure for operating a self-igniting Otto engine (OM) with at least one inlet valve (14), with one or several variably controllable outlet valves (15), with a sensor (21) for a continuous detection of an air-fuel-ratio (?) of the Otto engine (OM) and with a sensor (22) for detecting an engine speed n of the Otto engine (OM), whereby the fuel is directly injected into at least one combustion chamber (10) and whereby the Otto engine (OM) is operated in such a way, that a desired combustion focus (MFB50%set) is adjusted. The procedure is thereby characterized, in that the self-igniting moment of the fuel is influenced by an injection moment depending on a combustion focus (MFB50%set). An independent claim relates to a control unit that is customized for controlling the process of the procedure.Type: ApplicationFiled: September 9, 2010Publication date: March 17, 2011Applicant: Robert Bosch GmbHInventors: Andre F. CASAL KULZER, Roland KARRELMEYER, Christina SAUER
-
Patent number: 7841326Abstract: A method for operating an internal combustion engine working according to the Otto principle, in which fuel, particularly gasoline, is injected directly into a combustion chamber and is inflamed by self-ignition. A characteristic quantity characterizing the stability of combustion of an air/fuel mixture located in the combustion chamber is ascertained, and, as a function of the characteristic quantity, a residual gas proportion in the cylinder associated with the combustion chamber is set, in particular minimized, the residual gas proportion being reduced, preferably iteratively, as long as the characteristic quantity does not fall below a specifiable stability boundary.Type: GrantFiled: December 27, 2007Date of Patent: November 30, 2010Assignee: Robert Bosch GmbHInventors: Roland Karrelmeyer, Christina Sauer, Wolfgang Fischer, Juergen Haering
-
Patent number: 7813863Abstract: In an internal combustion engine, gasoline is injected directly into a combustion chamber and ignited by auto-ignition. The characteristics map range within which fuel is ignited by auto-ignition is enlarged by supercharging the internal combustion engine.Type: GrantFiled: February 20, 2007Date of Patent: October 12, 2010Assignee: Robert Bosch GmbHInventors: Christina Sauer, Andre F Casal Kulzer
-
Patent number: 7788016Abstract: A method for operating an internal combustion engine in a state of controlled self-ignition. The internal combustion engine includes a combustion chamber, at least one intake valve and at least one exhaust valve whose opening times can be changed. A fresh mixture is introduced into the combustion chamber during an intake stroke and an ignitable gas mixture is produced in the combustion chamber by way of the introduction of fuel and compressed in a compression stroke, whereby the gas mixture self-ignites toward the end of the compression stroke.The fresh mixture is introduced into the combustion chamber by way of a compression mechanism during the intake stroke.Type: GrantFiled: November 5, 2007Date of Patent: August 31, 2010Assignee: Robert Bosch GmbHInventors: Andre F Casal Kulzer, Christina Sauer
-
Patent number: 7703442Abstract: In an internal combustion engine, gasoline is injected directly into a combustion chamber and ignited by auto-ignition. The characteristics map range within which fuel is ignited by auto-ignition is enlarged by supercharging the internal combustion engine.Type: GrantFiled: May 27, 2009Date of Patent: April 27, 2010Assignee: Robert Bosch GmbHInventors: Christina Sauer, Andre F Casal Kulzer
-
Patent number: 7698046Abstract: A method for the transition of a gasoline engine with direct gasoline injection and with a variable valve train assembly from an initial mode of operation to a target mode of operation, whereby the initial mode of operation and the target mode of operation are either a mode of operation with an externally-supplied ignition or a mode of operation with a self-ignition, wherein the method comprises adapting operating parameters of the initial mode of operation to required values for the target mode of operation in a map-based pilot control phase; shifting the mode of operation after the map-based pilot control phase; and controlling the operation parameters after the shift.Type: GrantFiled: June 13, 2007Date of Patent: April 13, 2010Assignee: Robert Bosch GmbHInventors: Christina Sauer, Andre F. Casal Kulzer
-
Patent number: 7680584Abstract: A method of operating an internal combustion engine with direct gasoline injection and controlled self-ignition, wherein the internal combustion engine includes a combustion chamber, at least one intake valve and at least one exhaust valve each having an adjustable opening time. The method includes compressing an ignitable gas mixture that contains residual gas in the combustion chamber during a compression stroke, where the gas mixture self ignites, and altering step-wise over multiple combustion cycles at least one of a residual gas volume and a point of injection time to an interim value other than a value assigned to a target load during a load transfer from an initial load to the target load.Type: GrantFiled: July 25, 2007Date of Patent: March 16, 2010Assignee: Robert Bosch GmbHInventors: Roland Karrelmeyer, Christina Sauer, Wolfgang Fischer, Andre F. Casal Kulzer, Juergen Haering
-
Publication number: 20090301434Abstract: In a method for operating an internal combustion engine, particularly an Otto engine having direct gasoline injection in controlled self-ignition, the internal combustion engine including a combustion chamber, at least one intake valve and at least one exhaust valve, whose opening times are variable, and a fuel-air-exhaust gas mixture is introduced into a combustion chamber and is compressed in a compression stroke; the fuel-air mixture self-igniting towards the end of the compression stroke, a controlled self-ignition is made possible in wide load ranges by varying the opening times of the intake valve and the exhaust valve as a function of the load.Type: ApplicationFiled: September 22, 2006Publication date: December 10, 2009Inventors: Burkhard Hiller, Christina Sauer, Andre F. Casal Kulzer, Santosh Rao, Thomas Blank
-
Publication number: 20090229566Abstract: In an internal combustion engine, gasoline is injected directly into a combustion chamber and ignited by auto-ignition. The characteristics map range within which fuel is ignited by auto-ignition is enlarged by supercharging the internal combustion engine.Type: ApplicationFiled: May 27, 2009Publication date: September 17, 2009Inventors: Christina SAUER, Andre F. Casal KULZER
-
Publication number: 20090024302Abstract: Procedure for the operation of an internal combustion engine, particularly a gasoline engine with direct gasoline injection and controlled self-ignition, whereby the internal combustion engine (1) comprises a combustion chamber (2), at least one intake valve (EV) and at least one exhaust valve (AV), whose opening times can be altered, and an ignitable gas mixture, which contains residual gas, is compressed in the combustion chamber (2) during a compression stroke (V), whereby the gas mixture self ignites during the compression stroke (V). During a load transfer from an initial load to a target load, the residual gas volume and/or the point of injection time is altered for at least one power stroke to an interim value other than the value assigned to the target load.Type: ApplicationFiled: July 25, 2007Publication date: January 22, 2009Applicant: Robert Bosch GmbHInventors: Roland Karrelmeyer, Christina Sauer, Wolfgang Fischer, Andre F. Casal Kulzer, Juergen Haering
-
Publication number: 20090018749Abstract: In an internal combustion engine, gasoline is injected directly into a combustion chamber and ignited by auto-ignition. The characteristics map range within which fuel is ignited by auto-ignition is enlarged by supercharging the internal combustion engine.Type: ApplicationFiled: February 20, 2007Publication date: January 15, 2009Inventors: Christina Sauer, Andre F. Casal Kulzer
-
Publication number: 20080215226Abstract: A method for the transition of a gasoline engine with direct gasoline injection and with a variable valve train assembly from an initial mode of operation to a target mode of operation, whereby the initial mode of operation and the target mode of operation are either a mode of operation with an externally-supplied ignition or a mode of operation with a self-ignition, wherein the method comprises: adaptating operating parameters of the initial mode of operation to required values for the target mode of operation in a map-based pilot control phase; shifting the mode of operation after the map-based pilot control phase; and controlling the operating parameters after the shift.Type: ApplicationFiled: June 13, 2007Publication date: September 4, 2008Applicant: Robert Bosch GmbHInventors: Christina Sauer, Andre F. Casal Kulzer
-
Publication number: 20080172168Abstract: Method for operating an internal combustion engine in a state of controlled self-ignition, wherein the internal combustion engine comprises a combustion chamber, at least one intake valve) and at least one exhaust valve, whose opening times can be changed, and wherein the fresh mixture is introduced into the combustion chamber during an intake stroke and an ignitable gas mixture is produced in the combustion chamber by way of the introduction of fuel and compressed in a compression stroke, whereby the gas mixture self-ignites toward the end of the compression stroke. The fresh mixture is introduced into the combustion chamber by way of a compression mechanism during the intake stroke.Type: ApplicationFiled: November 5, 2007Publication date: July 17, 2008Applicant: Robert Bosch GmbHInventors: Andre F. Casal Kulzer, Christina Sauer
-
Publication number: 20080156305Abstract: A method for operating an internal combustion engine working according to the Otto principle, in which fuel, particularly gasoline, is injected directly into a combustion chamber and is inflamed by self-ignition. A characteristic quantity characterizing the stability of combustion of an air/fuel mixture located in the combustion chamber is ascertained, and, as a function of the characteristic quantity, a residual gas proportion in the cylinder associated with the combustion chamber is set, in particular minimized, the residual gas proportion being reduced, preferably iteratively, as long as the characteristic quantity does not fall below a specifiable stability boundary.Type: ApplicationFiled: December 27, 2007Publication date: July 3, 2008Inventors: Roland Karrelmeyer, Christina Sauer, Wolfgang Fischer, Juergen Haering
-
Patent number: 7051710Abstract: A method, a device and a computer program for controlling an internal combustion engine, in which a torque model is used within the framework of calculating instantaneous variables and/or actuating variables. In doing so, a basic value ascertained under standard conditions is corrected as a function of the inert-gas rate and/or the valve-overlap angle. Moreover, to further improve the accuracy of the model, the efficiency for the conversion of the chemical energy into mechanical energy by which the optimum torque value is corrected, is determined as a function of the deviation between optimum ignition angle and an instantaneous ignition angle as well as an additional variable representing the combustion performance of the mixture. The latter is the optimum ignition angle.Type: GrantFiled: September 6, 2002Date of Patent: May 30, 2006Assignee: Robert Bosch GmbHInventors: Patrick Hochstrasser, Christina Sauer, Gholamabas Esteghlal, Georg Mallebrein, Eberhard Klein
-
Patent number: 6990954Abstract: A method and an arrangement as well as a computer program for controlling an internal combustion engine are suggested. A torque model is utilized in the context of the computation of actual quantities and/or actuating quantities. In the context-of the torque model computation, the combustion center is considered which describes the angle at which a specific portion of the combustion energy is converted.Type: GrantFiled: July 20, 2002Date of Patent: January 31, 2006Assignee: Robert Bosch GmbHInventors: Patrick Hochstrasser, Christina Sauer, Gholamabas Esteghlal, Juergen Schiemann, Georg Mallebrein, Eberhard Klein
-
Publication number: 20050115542Abstract: A method, a device and a computer program for controlling an internal combustion engine, in which a torque model is used within the framework of calculating instantaneous variables and/or actuating variables. In doing so, a basic value ascertained under standard conditions is corrected as a function of the inert-gas rate and/or the valve-overlap angle. Moreover, to further improve the accuracy of the model, the efficiency for the conversion of the chemical energy into mechanical energy by which the optimum torque value is corrected, is determined as a function of the deviation between optimum ignition angle and an instantaneous ignition angle as well as an additional variable representing the combustion performance of the mixture. The latter is the optimum ignition angle.Type: ApplicationFiled: September 6, 2002Publication date: June 2, 2005Inventors: Patrick Hochstrasser, Christina Sauer, Gholamabas Esteghlal, Georg Mallebrein, Eberhard Klein