Patents by Inventor Stefan Unland
Stefan Unland 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: 20240102497Abstract: The invention relates to a method for providing at least one piece of information about a hydraulic apparatus (1), wherein the following stages are performed: Performing a detection (201) of detection values (210) at the apparatus (1), wherein the detection values (210) are specific for measurements at different measuring points and at different apparatus components (120) of the apparatus (1), Performing a transmission (202) of the detected detection values (210) to a processing component (300), Providing an apparatus information (211) about a specification of the apparatus (1) and/or the measurements, wherein providing the apparatus information (211) is performed at the processing component (300) to provide the transmitted detection values (210) with the apparatus information (211).Type: ApplicationFiled: January 12, 2022Publication date: March 28, 2024Inventors: Benjamin Weiß, Stefan Unland, Maximilian Leppla, Dmitry Orlov
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Publication number: 20240068849Abstract: The invention relates to a method (100) for processing operating data of a flow arrangement (2) of an apparatus (3) comprising a first conveying line (10) having a first flow resistor (11) and a second conveying line (20) having a second flow resistor (21) and being connected in parallel to the first conveying line (10) for a fluid flow (40) in the flow arrangement (2). Furthermore, the invention relates to a computer program product, and to a flow system (1).Type: ApplicationFiled: January 12, 2022Publication date: February 29, 2024Inventor: Stefan Unland
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Patent number: 10502341Abstract: A diagnostic system and method to function-monitor an actuator to affect a process medium stream of a process engineering plant can include an optical microphone allocated to the actuator and a diagnostic electronics. The optical microphone can be configured to measure an acoustic, actuator-specific operating signal, as leakage sound and cavitation sound, based on electromagnetic radiation that is affected by the acoustic, actuator-specific operating signal, and generate an electrical measuring signal based on the measured acoustic, actuator-specific operating signal. The diagnostic electronics can be configured to receive and store, process, and/or transmit the electrical measuring signal.Type: GrantFiled: January 18, 2018Date of Patent: December 10, 2019Assignee: SAMSON AKTIENGESELLSCHAFTInventors: Andreas Widl, Gerhard Widl, Stefan Unland, Uwe Schwab
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Publication number: 20180202577Abstract: A diagnostic system and method to function-monitor an actuator to affect a process medium stream of a process engineering plant can include an optical microphone allocated to the actuator and a diagnostic electronics. The optical microphone can be configured to measure an acoustic, actuator-specific operating signal, as leakage sound and cavitation sound, based on electromagnetic radiation that is affected by the acoustic, actuator-specific operating signal, and generate an electrical measuring signal based on the measured acoustic, actuator-specific operating signal. The diagnostic electronics can be configured to receive and store, process, and/or transmit the electrical measuring signal.Type: ApplicationFiled: January 18, 2018Publication date: July 19, 2018Applicant: SAMSON AKTIENGESELLSCHAFTInventors: Andreas Widl, Gerhard Widl, Stefan Unland, Uwe Schwab
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Patent number: 9046185Abstract: In a method or field device for determining a position of an open/closed-valve positioned by a pneumatic actuating drive and movable to a completely opened open position and a closed position depending on operating requirements, during normal operation a pneumatic working chamber of the actuating drive is pneumatically influenced with an i/p converter such that the open/closed-valve moves to one of the open/closed positions and, in case of a predetermined operating condition, the i/p converter allows the working chamber to vent so that the open/closed valve automatically moves to the other one of the open/closed positions. At least one of pressure prevailing in the working chamber and pneumatic control pressure output at the i/p converter is captured continuously over time, thus obtaining a pressure change over time on the basis of which a physical operational variable of the open/closed-valve is determined.Type: GrantFiled: April 18, 2011Date of Patent: June 2, 2015Assignee: SAMSON AKTIENGESELLSCHAFTInventors: Joerg Kiesbauer, Stefan Unland
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Publication number: 20110252895Abstract: In a method or field device for determining a position of an open/closed-valve positioned by a pneumatic actuating drive and movable to a completely opened open position and a closed position depending on operating requirements, during normal operation a pneumatic working chamber of the actuating drive is pneumatically influenced with an i/p converter such that the open/closed-valve moves to one of the open/closed positions and, in case of a predetermined operating condition, the i/p converter allows the working chamber to vent so that the open/closed valve automatically moves to the other one of the open/closed positions. At least one of pressure prevailing in the working chamber and pneumatic control pressure output at the i/p converter is captured continuously over time, thus obtaining a pressure change over time on the basis of which a physical operational variable of the open/closed-valve is determined.Type: ApplicationFiled: April 18, 2011Publication date: October 20, 2011Inventors: Joerg Kiesbauer, Stefan Unland
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Patent number: 7051711Abstract: Devices and methods for knock detection and knock control are described, in which, in addition to the customary component parts, the knock-detection circuit has a filter with switchable filter characteristic. The switchover of the filter characteristic, i.e. the shift, for example, of the mid-frequency of the filter, is carried out taking into consideration specifiable quantities or parameters, for instance, as a function of rotational speed. During the switchover of the filter characteristic, i.e. the shift of the mid-frequency, problems could occur in the knock detection; that is why measures are proposed which carry out the knock detection according to a special knock-detection algorithm during a switchover phase lasting a specifiable time.Type: GrantFiled: August 3, 2001Date of Patent: May 30, 2006Assignee: Robert Bosch GmbHInventors: Juergen Sauler, Steffen Franke, Stefan Unland, Oskar Torno, Axel Heinstein, Carsten Kluth, Werner Haeming, Michael Baeuerle
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Patent number: 6796288Abstract: A method for controlling incidences of combustion in an unloaded internal combustion engine of a vehicle. The method includes, determining a load-dynamics threshold, detecting an unloaded operating state of the internal combustion engine, detecting an incidence of the load-dynamics threshold being exceeded in the unloaded operating state, and retarding the ignition timing to form a load-dynamics aiming-off allowance that prevents combustion knock.Type: GrantFiled: December 23, 2002Date of Patent: September 28, 2004Assignee: Robert Bosch GmbHInventors: Steffen Franke, Stefan Unland, Iwan Surjadi, Carsten Prause
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Patent number: 6745749Abstract: Proposed is a method for adjusting an adaptive characteristics map of an adaptive engine-knock control system and a method for adaptively controlling engine knock, the adaptive characteristics map being defined by at least one operating parameter, the adaptive characteristics map for each operating-parameter range being made up of a precontrol component that characterizes the ambient conditions, and a residual component that results from the engine-knock control, the value of the adaptive characteristics map for each operating-parameter range being given by the sum of the precontrol component corresponding to the specific operating-parameter range, and the residual component corresponding to the specific operating-parameter range.Type: GrantFiled: May 30, 2003Date of Patent: June 8, 2004Assignee: Robert Bosch GmbHInventors: Stefan Unland, Axel Heinstein, Michael Gundlach, Werner Haeming, Martin Ludwig
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Publication number: 20040030486Abstract: Devices and methods for knock detection and knock control are described, in which, in addition to the customary component parts, the knock-detection circuit has a filter with switchable filter characteristic. The switchover of the filter characteristic, i.e. the shift, for example, of the mid-frequency of the filter, is carried out taking into consideration specifiable quantities or parameters, for instance, as a function of rotational speed. During the switchover of the filter characteristic, i.e. the shift of the mid-frequency, problems could occur in the knock detection; that is why measures are proposed which carry out the knock detection according to a special knock-detection algorithm during a switchover phase lasting a specifiable time.Type: ApplicationFiled: June 17, 2003Publication date: February 12, 2004Inventors: Juergen Sauler, Steffen Franke, Stefan Unland, Oskar Torno, Axel Heinstein, Carsten Kluth, Werner Haeming, Michael Baeuerle
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Publication number: 20030188713Abstract: The method is used for controlling incidences of combustion in an unloaded internal combustion engine (10) of a vehicle.Type: ApplicationFiled: December 23, 2002Publication date: October 9, 2003Inventors: Steffen Franke, Stefan Unland, Iwan Surjadi, Carsten Prause
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Publication number: 20030183203Abstract: Proposed is a method for adjusting an adaptive characteristics map of an adaptive engine-knock control system and a method for adaptively controlling engine knock, the adaptive characteristics map (20) being defined by at least one operating parameter (22, 24), the adaptive characteristics map (20) for each operating-parameter range (26) being made up of a precontrol component (bi) that characterizes the ambient conditions, and a residual component (ai) that results from the engine-knock control, the value of the adaptive characteristics map for each operating-parameter range being given by the sum of the precontrol component (bi) corresponding to the specific operating-parameter range, and the residual component (ai) corresponding to the specific operating-parameter range.Type: ApplicationFiled: May 30, 2003Publication date: October 2, 2003Inventors: Stefan Unland, Axel Heinstein, Michael Gundlach, Werner Haeming, Martin Ludwig
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Publication number: 20020005060Abstract: A circuit arrangement for the interference-free evaluation of signals is disclosed, with which output signals of sensors can be evaluated; two inputs are needed for each sensor. If a ground-referred signal evaluation is to be done, then only one input is needed for each sensor. The evaluation is done using differential circuitry; in the operating mode with ground reference, the differential signal processing is done by employing an internally generated reference voltage. The choice of operating mode of the circuit arrangement can be made from outside freely via its own control pin.Type: ApplicationFiled: June 15, 1999Publication date: January 17, 2002Inventors: STEFAN UNLAND, DAVIDE BURO, JUERGEN SPACHMANN
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Patent number: 6161523Abstract: A method for determining the ignition point in ignition systems for internal combustion engines, having integrated knock control, a basic ignition point being determined on the basis of measured operating parameters using a stored characteristic map. The knock control, after engine knock has occurred, determines a knock control ignition point, which is more retarded than the basic ignition point, the knock control ignition point, in response to knock-free combustions, being altered step-by-step so as to be more advanced. Furthermore, a torque interface is integrated, which on the basis of the operating parameters and/or the demands placed by the driver, determines a torque-optimized ignition point, and the knock control ignition point being the most advanced permissible ignition point which is issued by the control unit.Type: GrantFiled: August 20, 1999Date of Patent: December 19, 2000Assignee: Robert Bosch GmbHInventors: Stefan Unland, Oskar Torno, Robert Sloboda, Werner Haeming, Iwan Surjadi, Michael Baeuerle, Steffen Franke
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Patent number: 6062199Abstract: Method of knock control in multicylinder internal combustion engines, with one knock sensor being provided for a group of cylinders, and with a control unit determining and outputting the control quantities for the ignition of the individual cylinders on a selective basis for the cylinders. At least one cylinder, preferably the cylinder(s) sensed best by the knock sensor, is/are selected as the lead cylinder. A knocking event in a lead cylinder causes a retard in the firing for all cylinders of the group, while a knocking event in one of the other cylinders causes a retard in only this one cylinder.Type: GrantFiled: February 25, 1999Date of Patent: May 16, 2000Assignee: Robert Bosch GmbHInventors: Robert Entenmann, Stefan Unland, Werner Haeming, Iwan Surjadi, Steffen Franke
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Patent number: 6012425Abstract: A device for detecting knocking and regulating an internal combustion engine has at least one knocking sensor adapted to be assigned to a cylinder of the internal combustion engine and delivers an electrical output signal which is a function of a combustion stage in a respective cylinder. A signal evaluation unit receives the electrical output signal and has at least one preprocessing stage, a logical evaluation device formed as a device selected from a fuzzy logic device and at least one neuronic network, and a microprocessor making a connection within the signal evaluation unit. The preprocessing stage includes an element for extracting characteristic features from the output signal of the knocking sensor so that individual values are selected from an output signal of the signal preprocessing stage to form at least one signal vector which is fed to the neuronic network as an input vector which forms decision criteria making possible a statement regarding a presence of knocking.Type: GrantFiled: November 18, 1997Date of Patent: January 11, 2000Assignee: Robert Bosch GmbHInventors: Stefan Unland, Oskar Torno, Robert Sloboda, Werner Haeming, Iwan Surjadi, Michael Baeuerle, Sigfrid Hafner
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Patent number: 5771862Abstract: A process for adaptive knock control for an internal combustion engine serves to retard the firing angle of an internal combustion engine when knocking occurs and then to advance the firing angle again. At the same time, the operation of the internal combustion engine is subdivided into various operating ranges; on leaving an operating range, a value is always saved as a retardation of the firing angle determined during operation in this range, and when starting up again in this range with load dynamics and/or speed dynamics also occurring at the same time, this saved value is output as the starting value for operation in this new operating range.Type: GrantFiled: May 2, 1997Date of Patent: June 30, 1998Assignee: Robert Bosch GmbHInventors: Stefan Unland, Oskar Torno, Werner Haeming, Iwan Surjadi, Robert Sloboda, Michael Baeuerle
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Patent number: 5743233Abstract: A method for detecting knocking provides for weighting or limitation of the knocking threshold. For this purpose, on the one hand a normal range of the reference level is defined and in the case of a deviation from this normal range the knocking threshold is multiplied by a weighting factor less than 1 and, alternatively, the knocking threshold is limited when a prescribable limit value is reached.Type: GrantFiled: April 1, 1996Date of Patent: April 28, 1998Assignee: Robert Bosch GmbHInventors: Stefan Unland, Oskar Torno, Stefan Bollig, Werner Haeming, Ulrich Rothhaar, Iwan Surjadi, Wolfgang Hilbert, Robert Sloboda, Michael Baeuerle, Thomas Edelmann
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Patent number: 5680763Abstract: A system for controlling the charging of an internal combustion engine contains an integral controller. If appropriate, a proportional controller and/or a differential controller may also be present. The integration, carried out by the integral controller, of the control error is limited to a prescribable limit value in order to avoid severe overshoots. Various limit values for steady-state operating states and for dynamic operating states can be prescribed. The dynamic limit value can be provided with corrections as a function of characteristic operating variables and with an adaptive correction and can be additionally increased by a safety interval.Type: GrantFiled: October 30, 1995Date of Patent: October 28, 1997Assignee: Robert Bosch GmbHInventors: Stefan Unland, Oskar Torno, Werner Haeming, Iwan Surjadi, Robert Sloboda, Michael Baeuerle
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Patent number: 5645034Abstract: A method for the adaptive knock control of an internal combustion engine serves for shifting the ignition angle of an internal combustion engine in the retard direction when knocking occurs and for subsequently carrying out a return of the ignition angle in the advance direction. At the same time, the internal combustion engine is to have sub-divided operating ranges, and a value of an ignition-angle retard, determined in a range during operation, is always stored when this range is left. At the same time, in particular an average of all the ignition angles outputted in a range or a retard value plotted by a digital low-pass filter is to be stored.Type: GrantFiled: September 1, 1995Date of Patent: July 8, 1997Assignee: Robert Bosch GmbHInventors: Robert Entenmann, Stefan Unland, Oskar Torno, Werner Haeming, Ulrich Rothhaar, Iwan Surjadi, Wolfgang Hilbert, Robert Sloboda, Michael Baeuerle, Klaus Schenk