Patents by Inventor Alexander Schenck Zu Schweinsberg
Alexander Schenck Zu Schweinsberg 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: 11248572Abstract: A fuel distributor, which is in particular used as a fuel distribution rail for mixture-compressing, spark-ignited internal combustion engines, including a base body, at which at least one high-pressure inlet and multiple high-pressure outlets are provided. An insert element is furthermore provided that is situated in an interior of the base body. In the interior, the insert element separates an inflow area, which extends from the high-pressure inlet to the high-pressure outlets, at least essentially from a damping area. The insert element is designed as a thin-walled insert element that forms a divider extending through the interior at least from the high-pressure inlet to the high-pressure outlets.Type: GrantFiled: February 1, 2019Date of Patent: February 15, 2022Assignee: Robert Bosch GmbHInventors: Alexander Schenck Zu Schweinsberg, Klaus Joos, Markus Amler, Michael Bauer
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Patent number: 10859023Abstract: A method for ascertaining a setpoint value for a manipulated variable for activating a low-pressure pump in a fuel supply system for an internal combustion engine, including a high-pressure accumulator and a high-pressure pump including a volume control valve, the low-pressure pump being activated in such a way that a pressure provided by the low-pressure pump is reduced across multiple intake phases, in which fuel delivered by the low-pressure pump is sucked in by the high-pressure pump via the volume control valve, the volume control valve being at least temporarily held in a closed position during each of the multiple intake phases, in which it may be opened from a side facing the low-pressure pump, and the setpoint value being ascertained, taking into account an activating value of the manipulated variable, in which a drop in the delivery rate of the high-pressure pump is detected.Type: GrantFiled: March 8, 2017Date of Patent: December 8, 2020Assignee: Robert Bosch GmbHInventors: Joerg Kuempel, Michael Bauer, Alexander Schenck Zu Schweinsberg, Klaus Joos
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Patent number: 10837390Abstract: A method for ascertaining a setpoint value for a manipulated variable for the actuation of a low-pressure pump in a fuel-supply system for an internal combustion engine having a high-pressure accumulator and a high-pressure pump, the high-pressure pump being operated in a full delivery mode, and the low-pressure pump being actuated so that a pressure provided by the low-pressure pump is reduced, and the setpoint value at which a dip in a delivery quantity of the high-pressure pump is detected is ascertained while taking into account an actuation value of the manipulated variable.Type: GrantFiled: March 9, 2017Date of Patent: November 17, 2020Assignee: Robert Bosch GmbHInventors: Joerg Kuempel, Alexander Schenck Zu Schweinsberg, Burkhard Hiller, Hans-Friedrich Schwarz, Klaus Joos, Michael Bauer, Werner Hess
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Publication number: 20200340436Abstract: A fuel distributor, which is in particular used as a fuel distribution rail for mixture-compressing, spark-ignited internal combustion engines, including a base body, at which at least one high-pressure inlet and multiple high-pressure outlets are provided. An insert element is furthermore provided that is situated in an interior of the base body. In the interior, the insert element separates an inflow area, which extends from the high-pressure inlet to the high-pressure outlets, at least essentially from a damping area. The insert element is designed as a thin-walled insert element that forms a divider extending through the interior at least from the high-pressure inlet to the high-pressure outlets.Type: ApplicationFiled: February 1, 2019Publication date: October 29, 2020Inventors: Alexander Schenck Zu Schweinsberg, Klaus Joos, Markus Amler, Michael Bauer
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Patent number: 10781748Abstract: A method is described for diagnosing errors in an internal combustion engine in which fuel is injected from a high-pressure accumulator into associated combustion chambers with the aid of multiple fuel injectors, a first value (Rstat,2) which is representative of a static flow rate of fuel through one of the fuel injectors being ascertained, a second value (?n) which is representative of a running smoothness of the internal combustion engine being ascertained, if at least one of the two values (Rstat,2, ?n) deviates from the particular associated reference value (R?stat, ?n0), an error (F) being deduced, and the error (F) being assigned to the fuel injector and/or at least one further component and/or at least one operating phase of the internal combustion engine on the basis of deviations of the two representative values (Rstat,2, ?n) from the particular associated reference value (R?stat, ?n0).Type: GrantFiled: April 20, 2017Date of Patent: September 22, 2020Assignee: Robert Bosch GmbHInventors: Achim Hirchenhein, Alexander Schenck Zu Schweinsberg, Klaus Joos
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Patent number: 10598116Abstract: A method for ascertaining a correction value for fuel metering of a fuel injector of an internal combustion engine, in which fuel is injected from a high-pressure accumulator into a combustion chamber with the aid of the fuel injector, the fuel being injected into the combustion chamber in multiple separate injection procedures during one work cycle, a value representative of a static flow rate through the fuel injector being ascertained by ascertaining, for at least one of the multiple separate injection procedures, a ratio of a pressure change caused in the high-pressure accumulator by the at least one of the multiple separate injection procedures and an associated duration characteristic for the at least one of the multiple separate injection procedures being ascertained, and the correction value being ascertained based on a comparison of the representative value to a comparison value.Type: GrantFiled: June 1, 2017Date of Patent: March 24, 2020Assignee: Robert Bosch GmbHInventors: Achim Hirchenhein, Alexander Schenck Zu Schweinsberg, Klaus Joos, Eugenia Schwarz, Timm Hollmann
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Patent number: 10578043Abstract: A method for recognizing a state change of a fuel injector of an internal combustion engine, in which fuel from a high-pressure accumulator is injected into a combustion chamber with the aid of the fuel injector. A value that is representative of a static flow rate of fuel through the fuel injector is ascertained. A state change of the fuel injector is deduced when the representative value differs from a comparative value by more than a first threshold value.Type: GrantFiled: July 7, 2016Date of Patent: March 3, 2020Assignee: Robert Bosch GmbHInventors: Achim Hirchenhein, Alexander Schenck Zu Schweinsberg, Klaus Joos
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Publication number: 20190331050Abstract: A method for ascertaining a correction value for fuel metering of a fuel injector of an internal combustion engine, in which fuel is injected from a high-pressure accumulator into a combustion chamber with the aid of the fuel injector, the fuel being injected into the combustion chamber in multiple separate injection procedures during one work cycle, a value representative of a static flow rate through the fuel injector being ascertained by ascertaining, for at least one of the multiple separate injection procedures, a ratio of a pressure change caused in the high-pressure accumulator by the at least one of the multiple separate injection procedures and an associated duration characteristic for the at least one of the multiple separate injection procedures being ascertained, and the correction value being ascertained based on a comparison of the representative value to a comparison value.Type: ApplicationFiled: June 1, 2017Publication date: October 31, 2019Applicant: Robert Bosch GmbHInventors: Achim HIRCHENHEIN, Alexander SCHENCK ZU SCHWEINSBERG, Klaus JOOS, Eugenia SCHWARZ, Timm HOLLMANN
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Patent number: 10302037Abstract: A method is described for controlling the metering of fuel. A feature, which characterizes the switching point in time of a valve, is ascertained based on a measured signal curve. The feature is fed as an actual variable to a controller. A criterion of the feature is ascertained, the controller taking the criterion of the feature into account.Type: GrantFiled: February 12, 2016Date of Patent: May 28, 2019Assignee: ROBERT BOSCH GMBHInventors: Alexander Schenck zu Schweinsberg, Achim Hirchenhein, Klaus Joos, Werner Hess
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Publication number: 20190145313Abstract: A method is described for diagnosing errors in an internal combustion engine in which fuel is injected from a high-pressure accumulator into associated combustion chambers with the aid of multiple fuel injectors, a first value (Rstat,2) which is representative of a static flow rate of fuel through one of the fuel injectors being ascertained, a second value (?n) which is representative of a running smoothness of the internal combustion engine being ascertained, if at least one of the two values (Rstat,2, ?n) deviates from the particular associated reference value (R?stat, ?n0), an error (F) being deduced, and the error (F) being assigned to the fuel injector and/or at least one further component and/or at least one operating phase of the internal combustion engine on the basis of deviations of the two representative values (Rstat,2, ?n) from the particular associated reference value (R?stat, ?n0).Type: ApplicationFiled: April 20, 2017Publication date: May 16, 2019Inventors: Achim Hirchenhein, Alexander Schenck zu Schweinsberg, Klaus Joos
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Publication number: 20190078529Abstract: A method for ascertaining a setpoint value for a manipulated variable for the actuation of a low-pressure pump in a fuel-supply system for an internal combustion engine having a high-pressure accumulator and a high-pressure pump, the high-pressure pump being operated in a full delivery mode, and the low-pressure pump being actuated so that a pressure provided by the low-pressure pump is reduced, and the setpoint value at which a dip in a delivery quantity of the high-pressure pump is detected is ascertained while taking into account an actuation value of the manipulated variable.Type: ApplicationFiled: March 9, 2017Publication date: March 14, 2019Inventors: Joerg Kuempel, Alexander Schenck Zu Schweinsberg, Burkhard Hiller, Hans-Friedrich Schwarz, Klaus Joos, Michael Bauer, Werner Hess
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Publication number: 20190063359Abstract: A method for ascertaining a setpoint value for a manipulated variable for activating a low-pressure pump in a fuel supply system for an internal combustion engine, including a high-pressure accumulator and a high-pressure pump including a volume control valve, the low-pressure pump being activated in such a way that a pressure provided by the low-pressure pump is reduced across multiple intake phases, in which fuel delivered by the low-pressure pump is sucked in by the high-pressure pump via the volume control valve, the volume control valve being at least temporarily held in a closed position during each of the multiple intake phases, in which it may be opened from a side facing the low-pressure pump, and the setpoint value being ascertained, taking into account an activating value of the manipulated variable, in which a drop in the delivery rate of the high-pressure pump is detected.Type: ApplicationFiled: March 8, 2017Publication date: February 28, 2019Applicant: Robert Bosch GmbHInventors: Joerg KUEMPEL, Michael BAUER, Alexander SCHENCK ZU SCHWEINSBERG, Klaus JOOS
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Patent number: 10060381Abstract: A method is described for determining an opening delay of a fuel injector in which by activating a solenoid with the aid of an armature, a valve needle may be opened wherein a mathematical model is used which includes an activation duration of the solenoid as an input variable and a respective opening delay as an output variable.Type: GrantFiled: January 19, 2017Date of Patent: August 28, 2018Assignee: ROBERT BOSCH GMBHInventors: Alexander Schenck Zu Schweinsberg, Achim Hirchenhein, Klaus Joos, Markus Amler, Michael Bauer, Werner Hess
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Publication number: 20180223761Abstract: A method for recognizing a state change of a fuel injector of an internal combustion engine, in which fuel from a high-pressure accumulator is injected into a combustion chamber with the aid of the fuel injector. A value that is representative of a static flow rate of fuel through the fuel injector is ascertained. A state change of the fuel injector is deduced when the representative value differs from a comparative value by more than a first threshold value.Type: ApplicationFiled: July 7, 2016Publication date: August 9, 2018Inventors: Achim Hirchenhein, Alexander Schenck Zu Schweinsberg, Klaus Joos
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Publication number: 20180051643Abstract: A method is described for controlling the metering of fuel. A feature, which characterizes the switching point in time of a valve, is ascertained based on a measured signal curve. The feature is fed as an actual variable to a controller. A criterion of the feature is ascertained, the controller taking the criterion of the feature into account.Type: ApplicationFiled: February 12, 2016Publication date: February 22, 2018Inventors: Alexander Schenck zu Schweinsberg, Achim Hirchenhein, Klaus Joos, Werner Hess
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Publication number: 20170204804Abstract: A method is described for determining an opening delay of a fuel injector in which by activating a solenoid with the aid of an armature, a valve needle may be opened wherein a mathematical model is used which includes an activation duration of the solenoid as an input variable and a respective opening delay as an output variable.Type: ApplicationFiled: January 19, 2017Publication date: July 20, 2017Inventors: Alexander Schenck Zu Schweinsberg, Achim Hirchenhein, Klaus Joos, Markus Amler, Michael Bauer, Werner Hess
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Patent number: 9309825Abstract: A method for adapting the adaptation values for the adaptation of fuel injection quantities of an internal combustion engine, to which fuel is supplyable via a mixed operation of two injection types, a first adaptation value for adapting a first injection quantity specification according to which the internal combustion engine is operated by a first injection type, and a second adaptation value for adapting a second injection quantity specification according to which the internal combustion engine is operated by a second injection type, the adaptation values being each adapted in defined, not overlapping adaptation ranges as a function of the operating state, at least one of the adaptation ranges including operating states in which fuel is supplied to the internal combustion engine via both injection types.Type: GrantFiled: March 15, 2011Date of Patent: April 12, 2016Assignee: ROBERT BOSCH GMBHInventors: Andreas Roth, Alexander Schenck Zu Schweinsberg, Kai Jakobs
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Patent number: 9169818Abstract: An internal combustion engine has at least one combustion chamber which may be closed by an intake valve, at least one air intake port which leads to the intake valve, and a fuel injection device which in association with the at least one combustion chamber has a first injector and a second injector for the metered injection of fuel into at least one intake port. To achieve significantly improved mixture preparation and combustion of the fuel-air mixture in the combustion chamber, the two injectors are configured such that the first injector injects a widely divergent spray cone having a large cone angle, and the second injector injects an only slightly divergent spray cone having a much smaller cone angle.Type: GrantFiled: November 24, 2009Date of Patent: October 27, 2015Assignee: ROBERT BOSCH GMBHInventors: Michael Baeuerle, Alexander Schenck Zu Schweinsberg, Klaus Ries-Mueller
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Publication number: 20150122000Abstract: A method for detecting an error in the opening behavior of an injector of an internal combustion engine, the injector having an electromagnetically actuated valve element, a ballistic partial injection being carried out, the injector being ballistically activated, so that the valve element is not opened up to a lift stop, a ballistic closing delay period is determined, the determined ballistic closing delay period is compared with a reference value, and an error in the opening behavior of the injector is detected with the aid of the comparison.Type: ApplicationFiled: November 5, 2014Publication date: May 7, 2015Inventors: Markus WILLIMOWSKI, Markus AMLER, Alexander SCHENCK ZU SCHWEINSBERG, Florian STIEF, Klaus JOOS
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Publication number: 20130096802Abstract: A method for adapting the adaptation values for the adaptation of fuel injection quantities of an internal combustion engine, to which fuel is supplyable via a mixed operation of two injection types, a first adaptation value for adapting a first injection quantity specification according to which the internal combustion engine is operated by a first injection type, and a second adaptation value for adapting a second injection quantity specification according to which the internal combustion engine is operated by a second injection type, the adaptation values being each adapted in defined, not overlapping adaptation ranges as a function of the operating state, at least one of the adaptation ranges including operating states in which fuel is supplied to the internal combustion engine via both injection types.Type: ApplicationFiled: March 15, 2011Publication date: April 18, 2013Inventors: Andreas Roth, Alexander Schenck Zu Schweinsberg, Kai Jakobs