Patents by Inventor Christian Roduner
Christian Roduner 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: 8204673Abstract: A method for closed loop controlling the air system in an internal combustion engine, in particular a diesel internal combustion engine with a first actuating element for recirculated exhaust gas in the exhaust gas recirculation tract and a second actuating element for air in the inlet tract, the two actuating elements being adjusted as a function of each other. In order to increase the quality of closed loop control, provision is made for each actuating element to be controlled separately by its own respective controller, each controller being optimally configured for the respective controlled system, and a target value being provided for each controller.Type: GrantFiled: August 31, 2011Date of Patent: June 19, 2012Assignee: AVL List GmbHInventors: Christian Roduner, Markus Bachinger, Michael Stolz, Alois Danninger, Klemens Neunteufl
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Publication number: 20120078489Abstract: The invention relates to a method for closed loop controlling the air system in an internal combustion engine, in particular a diesel internal combustion engine with a first actuating element for recirculated exhaust gas in the exhaust gas recirculation tract and a second actuating element for air in the inlet tract, the two actuating elements being adjusted as a function of each other. In order to increase the quality of closed loop control, provision is made for each actuating element to be controlled separately by its own respective controller, each controller being optimally configured for the respective controlled system, and a target value being provided for each controller.Type: ApplicationFiled: August 31, 2011Publication date: March 29, 2012Inventors: Christian Roduner, Markus Bachinger, Michael Stolz, Alois Danninger, Klemens Neunteufl
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Patent number: 8126639Abstract: In a method for closed loop controlling the air system in an internal combustion engine, in particular a diesel internal combustion engine with a first actuating element for recirculated exhaust gas in the exhaust gas recirculation tract and a second actuating element for air in the inlet tract, the two actuating elements being adjusted as a function of each other. In order to increase the quality of closed loop control, provision is made for each actuating element to be controlled separately by its own respective controller, each controller being optimally configured for the respective controlled system, and a target value being provided for each controller.Type: GrantFiled: February 1, 2007Date of Patent: February 28, 2012Assignee: AVL List GmbHInventors: Christian Roduner, Markus Bachinger, Michael Stolz, Alois Danninger, Klemens Neunteufl
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Patent number: 7845900Abstract: A discharge region of a centrifugal compressor is provided. A scroll casing is asymmetrically formed in a circumferential direction and configured to be positioned in different angular positions in the circumferential direction. A vaned diffuser is configured to be positioned in different angular positions in the circumferential direction. The vaned diffuser includes a plurality of guide elements configured to be arranged in a distributed manner in the circumferential direction. Means are provided for positioning the vaned diffuser with regard to an angular position of the asymmetrically formed scroll casing. An angular spacing of two guide elements which are arranged adjacently to each other differs from an angular spacing of two other guide elements which are arranged adjacently to each other. By varying the angular spacings between two adjacent guide vanes of a diffuser along the circumference, the resonance vibration of the compressor can be reduced.Type: GrantFiled: January 12, 2010Date of Patent: December 7, 2010Assignee: ABB Turbo Systems AGInventors: Christian Roduner, Bent Phillipsen, Douglas Robinson
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Publication number: 20100299046Abstract: In a method for closed loop controlling the air system in an internal combustion engine, in particular a diesel internal combustion engine with a first actuating element for recirculated exhaust gas in the exhaust gas recirculation tract and a second actuating element for air in the inlet tract, the two actuating elements being adjusted as a function of each other. In order to increase the quality of closed loop control, provision is made for each actuating element to be controlled separately by its own respective controller, each controller being optimally configured for the respective controlled system, and a target value being provided for each controller.Type: ApplicationFiled: February 1, 2007Publication date: November 25, 2010Inventors: Christian Roduner, Markus Bachinger, Michael Stolz, Alois Danninger, Klemens Neunteufl
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Publication number: 20100150709Abstract: A discharge region of a centrifugal compressor is provided. A scroll casing is asymmetrically formed in a circumferential direction and configured to be positioned in different angular positions in the circumferential direction. A vaned diffuser is configured to be positioned in different angular positions in the circumferential direction. The vaned diffuser includes a plurality of guide elements configured to be arranged in a distributed manner in the circumferential direction. Means are provided for positioning the vaned diffuser with regard to an angular position of the asymmetrically formed scroll casing. An angular spacing of two guide elements which are arranged adjacently to each other differs from an angular spacing of two other guide elements which are arranged adjacently to each other. By varying the angular spacings between two adjacent guide vanes of a diffuser along the circumference, the resonance vibration of the compressor can be reduced.Type: ApplicationFiled: January 12, 2010Publication date: June 17, 2010Applicant: ABB Turbo Systems AGInventors: Christian RODUNER, Bent Phillipsen, Douglas Robinson
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Patent number: 7648331Abstract: The nozzles are in the form of blowing-in openings in the housing wall which bounds the flow channel. The blowing-in openings are fed directly by means of air which is extracted from the flow channel downstream from the diffusor. This air is at a higher pressure than the flow in the flow channel upstream of the diffusor. This results in a passive, dynamic stabilization system for a compressor stage in the high pressure-ratio range, which does not require any additional control or actuating elements.Type: GrantFiled: October 2, 2007Date of Patent: January 19, 2010Assignee: ABB Turbo Systems AGInventors: Zoltan Spakovszky, Christian Roduner
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Publication number: 20080140297Abstract: According to the invention, noise of an internal combustion engine is reduced by dynamically correcting the moment of injection when the engine is in the transient mode.Type: ApplicationFiled: August 23, 2007Publication date: June 12, 2008Inventors: Klemens Neunteufl, Eduard Unger, Christian Roduner
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Patent number: 7334561Abstract: According to the invention, noise of an internal combustion engine is reduced by dynamically correcting the moment of injection when the engine is in the transient mode.Type: GrantFiled: July 8, 2004Date of Patent: February 26, 2008Assignee: AVL List GmbHInventors: Klemens Neunteufl, Eduard Unger, Christian Roduner
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Publication number: 20080038112Abstract: The nozzles are in the form of blowing-in openings in the housing wall which bounds the flow channel. The blowing-in openings are fed directly by means of air which is extracted from the flow channel downstream from the diffusor. This air is at a higher pressure than the flow in the flow channel upstream of the diffusor. This results in a passive, dynamic stabilization system for a compressor stage in the high pressure-ratio range, which does not require any additional control or actuating elements.Type: ApplicationFiled: October 2, 2007Publication date: February 14, 2008Applicant: ABB Turbo Systems AGInventors: Zoltan Spakovszky, Christian Roduner
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Publication number: 20060169243Abstract: According to the invention, noise of an internal combustion engine is reduced by dynamically correcting the moment of injection when the engine is in the transient mode.Type: ApplicationFiled: July 8, 2004Publication date: August 3, 2006Inventors: Klemens Neunteufl, Eduard Unger, Christian Roduner
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Patent number: 7020554Abstract: A method of regulating or controlling a cyclically operating internal combustion engine using a computation model by which the cycle or portions of the cycle of the internal combustion engine is, or are, divided into individual parts and the operating condition within each cycle part is determined using measured values, stored and/or applied data in order to obtain actuating variables for operating the internal combustion engine. The time limits of the cycle parts are at least partially calculated as a function of at least one variable engine operating parameter. The operating status of an internal combustion engine can thus be determined readily and quickly while still with sufficient accuracy so as to obtain actuating variables suited for regulating or controlling the internal combustion engine using electronic control units available for series operation.Type: GrantFiled: December 2, 2003Date of Patent: March 28, 2006Assignee: AVL List GmbHInventors: Christian Roduner, Ingmar Schoegl
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Publication number: 20050027429Abstract: A method of regulating or controlling a cyclically operating internal combustion engine using a computation model by which the cycle or portions of the cycle of the internal combustion engine is, or are, divided into individual parts and the operating condition within each cycle part is determined using measured values, stored and/or applied data in order to obtain actuating variables for operating the internal combustion engine. The computation models for the various individual cycle parts are based on at least partially different assumptions and/or have different simplifications. The time limits of the cycle parts are at least partially calculated as a function of at least one variable engine operating parameter.Type: ApplicationFiled: December 2, 2003Publication date: February 3, 2005Inventors: Christian Roduner, Ingmar Schoegl
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Patent number: 6827063Abstract: For the establishment of a crank-angle based signal pattern with high discrimination representing a relevant working characteristic of an internal combustion engine, the working characteristic is detected with high time discrimination and with the aid of a time-based and angled-based crank-angle signal of low angle discrimination and transformed to a crank-angle basis under interpolation, and whereby there is assigned to the top dead center (OT) of the respective cylinder, by a multiple, a freely selectable angle increment under interpolation with high angle discrimination.Type: GrantFiled: August 21, 2002Date of Patent: December 7, 2004Assignee: AVL List GmbHInventors: Bernhard Breitegger, Eduard Unger, Christian Roduner, Alois Fürhapter
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Publication number: 20030037767Abstract: For the establishment of a crank-angle based signal pattern with high discrimination representing a relevant working characteristic of an internal combustion engine, the working characteristic is detected with high time discrimination and with the aid of a time-based and angled-based crank-angle signal of low angle discrimination and transformed to a crank-angle basis under interpolation, and whereby there is assigned to the top dead center (OT) of the respective cylinder, by a multiple, a freely selectable angle increment under interpolation with high angle discrimination.Type: ApplicationFiled: August 21, 2002Publication date: February 27, 2003Inventors: Bernhard Breitegger, Eduard Unger, Christian Roduner, Alois Furhapter
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Patent number: 5901552Abstract: The invention is directed to a method for adjusting the air/fuel ratio for an internal combustion engine having a catalytic converter connected downstream thereof which is capable of storing oxygen. In this method, the oxygen components in the exhaust gas of the engine are detected upstream of the catalytic converter and downstream thereof and the adjustment of the fuel/air ratio is influenced. In the method, a measure for the instantaneous oxygen fill level of the catalytic converter is determined from the above-mentioned oxygen components with the aid of a model. Data as to the state of deterioration of the catalytic converter are derived from the model parameters. The air/fuel ratio is so adjusted that the oxygen fill level of the catalytic converter is held to a constant mean level.Type: GrantFiled: February 20, 1997Date of Patent: May 11, 1999Assignee: Robert Bosch GmbHInventors: Eberhard Schnaibel, Erich Schneider, Rudiger Deibert, Hans Peter Geering, Christian Roduner, Esfandiar Shafai