Patents by Inventor Matthias Walz
Matthias Walz 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: 20230303020Abstract: A side airbag device for a motor vehicle includes an airbag, in which, in the event of an impact, gas is introduced by a gas generator of the side airbag device. The airbag includes drain valve for removing the gas immediately after the impact. The device also includes an electronic computing unit and a further drain valve and/or a further gas generator. A passenger of the motor vehicle is detected by a detection unit. The device is filled with the gas in the event of the impact to protect this passenger. The electronic computing unit is configured, depending on the detected passenger, to determine a gas pressure in the airbag by actuation of the further drain valve or the further gas generator before the impact and to adapt the gas pressure to the passengers during the impact.Type: ApplicationFiled: July 27, 2021Publication date: September 28, 2023Inventors: Olivier Frank TENKAP MFOUBI, Jan RIEDER, Matthias WALZ
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Patent number: 9476374Abstract: In a method for regeneration of nitrogen oxide storage catalytic converters in the exhaust gas tract of a gasoline engine assigned an exhaust aftertreatment system in the form of a Y system including two three-way catalytic converters, two downstream nitrogen oxide storage catalytic converters, one shared catalytic converter for selective catalytic reduction, and a rear nitrogen oxide storage catalytic converter, a first part of the exhaust gas in the first exhaust bank is set to rich and a second part of the exhaust gas in the second exhaust bank is set to lean in a first regeneration phase and subsequently, the second part of the exhaust gas in the second exhaust bank is set to rich and the first part of the exhaust gas in the first exhaust bank is set to lean in a second regeneration phase.Type: GrantFiled: October 21, 2014Date of Patent: October 25, 2016Assignee: ROBERT BOSCH GMBHInventors: Alexandra Fuchsbauer, Uwe Mueller, Matthias Walz, Guido Porten
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Publication number: 20160161369Abstract: A method for determining quantitative errors in a fuel quantity and air quantity delivered to at least one cylinder of an internal combustion engine, in which in a first phase a cylinder equalization of the internal combustion engine is accomplished, and an error in the fuel quantity delivered to the at least one cylinder is determined therefrom. In a second phase the internal combustion engine is operated with a stoichiometric ratio of air quantity and fuel quantity, a feature of the at least one cylinder correlating with an indicated mean pressure is sensed, and an error in the air quantity delivered to the at least one cylinder is determined from the feature correlating with the indicated mean pressure.Type: ApplicationFiled: May 20, 2014Publication date: June 9, 2016Inventors: Uwe Mueller, Alexandra Fuchsbauer, Armin Hassdenteufel, Guido Porten, Matthias Walz
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Patent number: 9284936Abstract: A method for setting an exhaust gas recirculation rate in an engine system having an internal combustion engine, the exhaust gas recirculation rate indicating the portion of the exhaust gas recirculated into one cylinder of the internal combustion engine with regard to the total gas quantity present in the cylinder, including: operating the internal combustion engine according to an input for the exhaust gas recirculation rate, an ignition of an air/fuel mixture being carried out in the cylinder at a certain ignition timing; adjusting the ignition timing in the cylinder of the internal combustion engine; correcting the input for the exhaust gas recirculation rate as a function of a change in an operating behavior of the internal combustion engine due to the ignition timing adjustment.Type: GrantFiled: March 16, 2011Date of Patent: March 15, 2016Assignee: ROBERT BOSCH GMBHInventors: Ralf Daeubel, Guido Porten, Markus Amler, Matthias Walz, Uwe Mueller, Jan-Mathias Meng
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Publication number: 20150107229Abstract: In a method for regeneration of nitrogen oxide storage catalytic converters in the exhaust gas tract of a gasoline engine assigned an exhaust aftertreatment system in the form of a Y system including two three-way catalytic converters, two downstream nitrogen oxide storage catalytic converters, one shared catalytic converter for selective catalytic reduction, and a rear nitrogen oxide storage catalytic converter, a first part of the exhaust gas in the first exhaust bank is set to rich and a second part of the exhaust gas in the second exhaust bank is set to lean in a first regeneration phase and subsequently, the second part of the exhaust gas in the second exhaust bank is set to rich and the first part of the exhaust gas in the first exhaust bank is set to lean in a second regeneration phase.Type: ApplicationFiled: October 21, 2014Publication date: April 23, 2015Inventors: Alexandra Fuchsbauer, Uwe Mueller, Matthias Walz, Guido Porten
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Patent number: 8904996Abstract: In a method for operating an injector of an internal combustion engine of a motor vehicle, in which an actuator for driving a component of the injector is provided, the actuator is controlled in such a way that at least two partial injections are brought about within a working cycle of the internal combustion engine. For each partial injection, a starting point in time of the partial injection is ascertained.Type: GrantFiled: December 12, 2011Date of Patent: December 9, 2014Assignee: Robert Bosch GmbHInventors: Guido Porten, Markus Amler, Matthias Walz, Alexandra Woerz, Ralf Hofmann, Arthur Pichlkostner
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Patent number: 8660776Abstract: A method for starting an internal combustion engine, in which a control unit starts at least one function at a specific crankshaft angle, the function being shifted from the start of the internal combustion engine until a final condition is reached by a relative angle to a later crankshaft angle.Type: GrantFiled: December 17, 2007Date of Patent: February 25, 2014Assignee: Robert Bosch GmbHInventors: Norbert Mueller, Ruediger Weiss, Tobias Leutwein, Matthias Walz, Elmar Pietsch, Harry Friedmann
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Publication number: 20130068197Abstract: A method for setting an exhaust gas recirculation rate in an engine system having an internal combustion engine, the exhaust gas recirculation rate indicating the portion of the exhaust gas recirculated into one cylinder of the internal combustion engine with regard to the total gas quantity present in the cylinder, including: operating the internal combustion engine according to an input for the exhaust gas recirculation rate, an ignition of an air/fuel mixture being carried out in the cylinder at a certain ignition timing; adjusting the ignition timing in the cylinder of the internal combustion engine; correcting the input for the exhaust gas recirculation rate as a function of a change in an operating behavior of the internal combustion engine due to the ignition timing adjustment.Type: ApplicationFiled: March 16, 2011Publication date: March 21, 2013Inventors: Ralf Daeubel, Guido Porten, Markus Amler, Matthias Walz, Uwe Mueller, Jan-Mathias Meng
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Patent number: 8272361Abstract: The aim of the invention is to optimize the running smoothness of an internal combustion engine. To achieve this aim, the individual cylinders are synchronized with respect to their torque contribution. According to the method, fuel is injected into the combustion chamber of a cylinder in at least one injection step, the at least one injection contributing to the torque of the internal combustion engine. Fuel is injected into the combustion chamber of the cylinder in a torque neutral manner by way of a secondary injection during a working stroke of the cylinder and the amount of fuel of the secondary injection us calculated in such a manner that the exhaust gas substantially corresponds to a stoichiometric air/fuel mixture.Type: GrantFiled: May 5, 2008Date of Patent: September 25, 2012Assignee: Robert Bosch GmbHInventors: Guido Porten, Jens Wolber, Markus Amler, Matthias Walz, Jan-Mathias Meng, Joerg Koenig, Marc Schott, Pierre-Yves Crepin
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Publication number: 20120152203Abstract: In a method for operating an injector of an internal combustion engine of a motor vehicle, in which an actuator for driving a component of the injector is provided, the actuator is controlled in such a way that at least two partial injections are brought about within a working cycle of the internal combustion engine. For each partial injection, a starting point in time of the partial injection is ascertained.Type: ApplicationFiled: December 12, 2011Publication date: June 21, 2012Inventors: Guido Porten, Markus Amler, Matthias Walz, Alexandra Woerz, Ralf Hofmann, Arthur Pichlkostner
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Publication number: 20110184633Abstract: A method for starting an internal combustion engine, in which a control unit starts at least one function at a specific crankshaft angle, the function being shifted from the start of the internal combustion engine until a final condition is reached by a relative angle to a later crankshaft angle.Type: ApplicationFiled: December 17, 2007Publication date: July 28, 2011Inventors: Norbert Mueller, Ruediger Weiss, Tobias Leutwein, Matthias Walz, Elmar Pietsch, Harry Friedmann
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Patent number: 7779678Abstract: In a method and a device for operating an injection device (5) for an internal combustion engine, the injection device (5) includes injection valves (40), via which fuel is injected directly into combustion chambers (100) of the internal combustion engine. Mechanisms are provided for detecting misfirings (310), and for determining a fuel pressure (320). A mechanical fault of an injection valve (40) is detected when a misfire occurs in a cylinder (110) and the fuel pressure simultaneously drops below a threshold value (SW). An electrical fault in an injection device (5) is detected when misfirings of cylinders (110) assigned to an output stage bank of the injection device (5) are observed, and the fuel pressure has dropped below a threshold value (SW). The responses to the faults that are implemented differ depending on the faults that were detected.Type: GrantFiled: February 16, 2006Date of Patent: August 24, 2010Assignee: Robert Bosch GmbHInventors: Jens Wolber, Oliver Wiemers, Winfried Langer, Andreas Baumann, Christian Koehler, Norbert Mueller, Hans-Juergen Baehr, Matthias Walz
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Publication number: 20100031919Abstract: The aim of the invention is to optimize the running smoothness of an internal combustion engine. To achieve this aim, the individual cylinders are synchronized with respect to their torque contribution. According to the method, fuel is injected into the combustion chamber of a cylinder in at least one injection step, the at least one injection contributing to the torque of the internal combustion engine. Fuel is injected into the combustion chamber of the cylinder in a torque neutral manner by way of a secondary injection during a working stroke of the cylinder and the amount of fuel of the secondary injection us calculated in such a manner that the exhaust gas substantially corresponds to a stoichiometric air/fuel mixture.Type: ApplicationFiled: May 5, 2008Publication date: February 11, 2010Applicant: Robert Bosch GmbHInventors: Guido Porten, Jens Wolber, Markus Amler, Matthias Walz, Jan-Mathias Meng, Joerg Koenig, Marc Schott, Pierre-Yves Crepin
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Publication number: 20080319584Abstract: The invention concerns a procedure for controlling an injection valve, at which the injection valve is supplied with current that is provided by a condenser during a holding phase, at which the injection valve is kept open. The invention further concerns a device for controlling an injection valve, which is customized to cause the condenser to provide the injection valve during a holding phase, at which the injection valve is kept open, with current.Type: ApplicationFiled: May 23, 2008Publication date: December 25, 2008Applicant: Robert Bosch GmbHInventors: Michael Fischer, Christian Bayer, Minh-Tam Ta, Peter Feuerstack, Jens Neuberg, Helerson Kemmer, Matthias Walz, Anh-Tuan Hoang, Achim Deistler, Michael Clauss, Andreas Jakobi, Roland Waschler, Harry Friedmann, Lars Moser
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Publication number: 20080249699Abstract: The invention relates to a method and a device for operating an injection device (5) for an internal combustion engine, the injection device (5) including injection valves (40), via which fuel is injected directly into combustion chambers (100) of the internal combustion engine. Means are provided for detecting misfirings (310), and for determining a fuel pressure (320). A mechanical fault of an injection valve (40) is detected when a misfire occurs in a cylinder (110) and the fuel pressure simultaneously drops below a threshold value (SW). An electrical fault in an injection device (5) is detected when misfirings of cylinders (110) assigned to an output stage bank of the injection device (5) are observed, and the fuel pressure has dropped below a threshold value (SW). The responses to the faults that are implemented differ depending on the faults that were detected.Type: ApplicationFiled: February 16, 2006Publication date: October 9, 2008Inventors: Jens Wolber, Oliver Wiemers, Winfried Langer, Andreas Baumann, Christian Koehler, Norbert Mueller, Hans-Juergen Baehr, Matthias Walz
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Publication number: 20080216787Abstract: To achieve a reliable and exhaust-optimized combustion starting already from the beginning of a combustion phase in the startup of an internal combustion engine, the internal combustion engine is brought to a target speed by an electric motor in a drag phase, the target speed being higher than the previously known starting speed. The target speed corresponds approximately to an idling speed assigned to the internal combustion engine, for example. After exceeding the starting speed, first a mixture enrichment is determined, taking into account a prevailing state of a wall film here in particular. Only after reaching the target speed is the fuel metered and does the combustion take place in the combustion phase. The fuel is metered here in particular on the basis of the mixture enrichment determined after exceeding the starting speed.Type: ApplicationFiled: August 29, 2007Publication date: September 11, 2008Inventors: Karsten Kroepke, Jens Wolber, Ruediger Weiss, Martin Streib, Niraimathi Appavu Mariappan, Karl-Bernhard Lederle, Jean-Marc Tonye Djon, Pierre-Yves Crepin, Matthias Walz, Manfred Dietrich
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Publication number: 20080162002Abstract: A safety device is provided for a motor vehicle having a vehicle seat whose seat setting can be adjusted by a seat adjustment drive. A seat control unit evaluates data that is relevant to the safety of a driving mode and actuates the seat adjustment drive with timing. Thereby, movement of the vehicle seat into a seat setting occurs that is optimum for a vehicle occupant in terms of safety technology is initiated before the occurrence of an anticipated accident event. Movement of the vehicle seat into its optimum seat setting in terms of safety technology is carried out successively in individual adjustment steps for the respective components of the vehicle seat in a predefined sequence by the seat control unit.Type: ApplicationFiled: April 12, 2005Publication date: July 3, 2008Applicant: DAIMLERCHRYSLER AGInventors: Werner Bacher, Ralf Bogenrieder, Martin Pfieffer, Dominic Reutter, Friedhelm Sawinsky, Matthias Walz, Wilfried Walz
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Patent number: 7383804Abstract: A procedure to recognize a depressurized fuel system of a motor vehicle with an internal combustion engine that includes a parameter characterizing the fuel system temperature is acquired when turning off the internal combustion engine; a parameter characterizing the fuel system temperature is acquired in the immediately subsequent driving cycle when starting the internal combustion engine; and from the difference between the shut-down temperature and the starting temperature, the pressure in the fuel system is inferred.Type: GrantFiled: November 9, 2006Date of Patent: June 10, 2008Assignee: Robert Bosch GmbHInventors: Jens Wolber, Karsten Hinn, Timm Hollmann, Matthias Walz, Marcel Matischok
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Publication number: 20070101973Abstract: A procedure to recognize a depressurized fuel system of a motor vehicle with an internal combustion engine that includes a parameter characterizing the fuel system temperature is acquired when turning off the internal combustion engine; a parameter characterizing the fuel system temperature is acquired in the immediately subsequent driving cycle when starting the internal combustion engine; and from the difference between the shut-down temperature and the starting temperature, the pressure in the fuel system is inferred.Type: ApplicationFiled: November 9, 2006Publication date: May 10, 2007Applicant: Robert Bosch GMBHInventors: Jens Wolber, Karsten Hinn, Timm Hollmann, Matthias Walz, Marcel Matischok
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Patent number: 6601254Abstract: A combination includes a foldable hand tool, an adapter, and an implement. The foldable hand tool provides a pair of handles that are connected with a pin to a pair of pivotally engaged gripping jaws. The implement includes a tool head, such as a ratchet wrench or screw driver, and a male adapter engagement portion. The adapter includes a female tool engagement chamber for receiving the implement; and the adapter includes a pair of spaced apart sidewalls extending from the female tool engagement chamber. An interior surface of each of the sidewalls has a generally U-shaped depression on the interior surface of each of the sidewalls, each of the depressions being shaped to firmly engage one of the pins in the foldable hand tool. Once it has been assembled, the foldable hand tool is connected to the implement through the adapter. The foldable hand tool thereby provides leverage through the handle to manipulate the tool head of the implement.Type: GrantFiled: November 10, 2001Date of Patent: August 5, 2003Inventor: Matthias Walz