Patents by Inventor Haris Hamedovic
Haris Hamedovic 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: 10865727Abstract: A method for controlling at least one switchable valve, a brake impulse that slows down the valve movement being produced during the controlling of the at least one valve. At least one parameter of the brake impulse determines the position and/or the duration of the brake impulse. A parameter is modified, and the reaction of a measurement quantity or of a characteristic feature derived from the measurement quantity is evaluated.Type: GrantFiled: September 24, 2015Date of Patent: December 15, 2020Assignee: Robert Bosch GmbHInventors: Stephan Jahn, Juergen Graner, Haris Hamedovic, Christian Steinbrecher, Bastian Reineke, Wolfgang Fischer, Andreas Rupp
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Patent number: 10350742Abstract: Percussion unit, especially for a rotary hammer and/or percussion hammer, comprising a control unit which is designed for controlling a pneumatic percussion mechanism. According to the disclosure, the control unit comprises at least one load estimation device.Type: GrantFiled: April 24, 2013Date of Patent: July 16, 2019Assignee: Robert Bosch GmbHInventors: Rainer Nitsche, Antoine Vandamme, Thomas Winkler, Helge Sprenger, Haris Hamedovic, Wolfgang Fischer, Christian Bertsch, Mario Eduardo Vega Zavala, Ulli Hoffmann, Thilo Henke, Achim Duesselberg
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Patent number: 9926869Abstract: A method for adapting a transition compensation based on a lambda value change for operating an engine, which includes a combustion chamber having a first inlet opening connected to a first intake pipe having a first injector. The chamber includes a second inlet opening connected to a second intake pipe having a second injector. During normal operation, a predetermined fuel quantity is injected, and this quantity includes a first and second fuel quantities to be injected respectively via the first and second openings. In a first step, the first injector remains closed, and in a second step, the first injector is opened again. In the second step, a first test fuel quantity is injected into the combustion chamber via the first opening and a second test fuel quantity is injected via the second opening, the first and second test fuel quantities making up the predetermined fuel quantity.Type: GrantFiled: February 12, 2014Date of Patent: March 27, 2018Assignee: Robert Bosch GmbHInventors: Marko Lorenz, Andreas Posselt, Andrea Krusch, Andreas Gutscher, Haris Hamedovic
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Publication number: 20170350356Abstract: An injector, for injecting a fuel fluid into an intake manifold or into a combustion chamber of a cylinder of an internal combustion engine, includes an electromagnetic actuator that includes a magnetic circuit. The magnetic circuit includes a solenoid, an internal pole, and a magnet armature that cooperates with the solenoid and the internal pole, and is configured to generate a controlled force action between the internal pole and the magnet armature when the electromagnetic actuator is activated with the aid of an activating current and/or an activating voltage. The injector includes a gap in the area between the internal pole and the magnet armature, and includes a valve sleeve that has either paramagnetic material properties in and outside the area of the gap or paramagnetic material properties in the area of the gap and ferromagnetic material properties outside of this area.Type: ApplicationFiled: December 15, 2015Publication date: December 7, 2017Inventors: Thomas Pauer, Haris Hamedovic, Karsten Schneider
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Patent number: 9815160Abstract: A percussion unit for a rotary hammer and/or percussion hammer includes a control unit that is configured for open-loop and/or closed loop control of a pneumatic percussion mechanism. In at least one operating state in which the control unit changes from an idle mode to a percussion mode, the control unit is configured to adjust at least one operating parameter temporarily to a starting value.Type: GrantFiled: April 24, 2013Date of Patent: November 14, 2017Assignee: Robert Bosch GmbHInventors: Rainer Nitsche, Matthias Tauber, Antoine Vandamme, Gerd Schlesak, Helge Sprenger, Carsten Diem, Wolfgang Fischer, Haris Hamedovic, Juergen Lennartz, Christian Bertsch, Mario Eduardo Vega Zavala, Achim Duesselberg
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Publication number: 20170314494Abstract: A method for controlling at least one switchable valve, a brake impulse that slows down the valve movement being produced during the controlling of the at least one valve, the position and/or the length of the brake impulse being specified as a function of a switching time of the valve, it being checked whether a characteristic feature occurs that indicates the switching time, and, upon occurrence of the characteristic feature, the position and/or the length of the brake impulse being adapted based on the position of the characteristic feature.Type: ApplicationFiled: September 24, 2015Publication date: November 2, 2017Inventors: Andreas Rupp, Bastian Reineke, Christian Steinbrecher, Haris Hamedovic, Stephan Jahn, Wolfgang Fischer
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Publication number: 20170306879Abstract: A method for controlling at least one switchable valve, a brake impulse that slows down the valve movement being produced during the controlling of the at least one valve. At least one parameter of the brake impulse determines the position and/or the duration of the brake impulse. A parameter is modified, and the reaction of a measurement quantity or of a characteristic feature derived from the measurement quantity is evaluated.Type: ApplicationFiled: September 24, 2015Publication date: October 26, 2017Applicant: Robert Bosch GmbHInventors: Stephan Jahn, Juergen Graner, Haris Hamedovic, Christian Steinbrecher, Bastian Reineke, Wolfgang Fischer, Andreas Rupp
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Patent number: 9677483Abstract: In a method for identifying a fuel type or a fuel mixture for a combustion chamber of an internal combustion engine having (i) a first intake opening connected to a first intake manifold inside which a first fuel injector is located, and (ii) a second intake opening connected to a second intake manifold inside which a second fuel injector is located, in a first method step, the first fuel injector remains closed, and in a second method step the first fuel injector is opened again and a first test fuel quantity is injected into the combustion chamber in the second method step via the first intake opening, and a second test fuel quantity is injected via the second intake opening, the first test fuel quantity and the second test fuel quantity being made up to form a predefined fuel quantity.Type: GrantFiled: February 12, 2014Date of Patent: June 13, 2017Assignee: Robert Bosch GmbHInventors: Marko Lorenz, Andreas Posselt, Andrea Krusch, Andreas Gutscher, Haris Hamedovic
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Patent number: 9670864Abstract: A device and a method for actuating an injector in a fuel-injection system of an internal combustion engine are described. Using a first calibration method and based on a control parameter, an injector parameter which characterizes the injection process is determined. Starting from this injector parameter, a first feature is determined for calibrating the injector. A second calibration method determines a second feature for calibrating the injector, based on an engine parameter. The first calibration method is monitored on the basis of the second feature.Type: GrantFiled: September 30, 2011Date of Patent: June 6, 2017Assignee: Robert Bosch GmbHInventors: Haris Hamedovic, Wolfgang Fischer, Silke Seuling
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Patent number: 9512802Abstract: A method for operating an internal combustion engine having two or more cylinders to which fuel can be supplied via an injection valve, it being possible to carry out a measurement injection for a cylinder in order to determine and/or adapt a characteristic quantity of the injection valve, and all the cylinders being ignited in the course of an ignition cycle. To improve the operating characteristics, a measurement injection is carried out for those cylinders that are contained in a specifiable selected set selected from all the cylinders.Type: GrantFiled: January 9, 2013Date of Patent: December 6, 2016Assignee: Robert Bosch GmbHInventors: Nicolas Gueguen, Klaus Joos, Werner Hess, Holger Rapp, Haris Hamedovic, Joerg Koenig, Harry Friedmann, Andreas Koch, Ruben Schlueter, Joao Lopes Rauck, Christian Reschke, Stephanie Wirth
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Patent number: 9458809Abstract: A method for assessing an injection behavior of at least one injection valve of an internal combustion engine includes putting the internal combustion engine into a special operating mode defined by control parameters and operating the engine in the special operating mode during a diagnostic time period, at least one operating parameter of the internal combustion engine being determined at least during the diagnostic time period, and at least one quantity characterizing the injection behavior of the at least one injection valve being evaluated at least during a segment of the diagnostic time period and being evaluated on the basis of the at least one operating parameter.Type: GrantFiled: August 6, 2012Date of Patent: October 4, 2016Assignee: ROBERT BOSCH GMBHInventors: Klaus Joos, Werner Hess, Andreas Koch, Ruben Schlueter, Holger Rapp, Haris Hamedovic, Joerg Koenig, Harry Friedmann, Achim Hirchenhein, Christoph Heisen, Christian Reschke, Stephanie Wirth
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Patent number: 9309852Abstract: A method for activating an injector in a fuel injection system in an internal combustion engine, the fuel injection system including a plurality of injectors and a quantity of fuel injected with the aid of an injector being a function of the activation period of the injector. An injector-individual correction value for the activation period is ascertained for at least one injector as a function of a pressure and a temperature of the fuel to be injected and the activation for this injector takes place under consideration of the injector-individual correction value.Type: GrantFiled: December 2, 2011Date of Patent: April 12, 2016Assignee: ROBERT BOSCH GMBHInventors: Klaus Joos, Werner Hess, Ruben Schlueter, Holger Rapp, Haris Hamedovic, Harry Friedmann, Andreas Koch, Christian Reschke, Joerg Koenig, Stephanie Wirth, Achim Hirchenhein
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Publication number: 20160084183Abstract: A method for adapting a transition compensation based on a lambda value change for operating an engine, which includes a combustion chamber having a first inlet opening connected to a first intake pipe having a first injector. The chamber includes a second inlet opening connected to a second intake pipe having a second injector. During normal operation, a predetermined fuel quantity is injected, and this quantity includes a first and second fuel quantities to be injected respectively via the first and second openings. In a first task, the first injector remains closed, and in a second task, the first injector is opened again. In the second task, a first test fuel quantity is injected into the combustion chamber via the first opening and a second test fuel quantity is injected via the second opening, the first and second test fuel quantities making up the predetermined fuel quantity.Type: ApplicationFiled: February 12, 2014Publication date: March 24, 2016Applicant: Robert Bosch GmbHInventors: Marko Lorenz, Andreas Posselt, Andrea Krusch, Andreas Gutscher, Haris Hamedovic
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Publication number: 20160069284Abstract: In a method for identifying a fuel type or a fuel mixture for a combustion chamber of an internal combustion engine having (i) a first intake opening connected to a first intake manifold inside which a first fuel injector is located, and (ii) a second intake opening connected to a second intake manifold inside which a second fuel injector is located, in a first method step, the first fuel injector remains closed, and in a second method step the first fuel injector is opened again and a first test fuel quantity is injected into the combustion chamber in the second method step via the first intake opening, and a second test fuel quantity is injected via the second intake opening, the first test fuel quantity and the second test fuel quantity being made up to form a predefined fuel quantity.Type: ApplicationFiled: February 12, 2014Publication date: March 10, 2016Inventors: Marko Lorenz, Andreas Posselt, Andrea Krusch, Andreas Gutscher, Haris Hamedovic
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Patent number: 9228520Abstract: A method for operating a valve actuated by way of an actuator, in particular a fuel injection valve of an internal combustion engine of a motor vehicle, in which a first delay time is identified, which time characterizes a time difference between a point in time of a first change in an energization signal for the actuator and a point in time of a first change in the operating state of the valve corresponding to the first change in the energization signal. According to the present invention, from the first delay time at least one second delay time of the valve is inferred, which latter time characterizes a time difference between a point in time of a second change, different from the first change, in the energization signal and a point in time of a second change in the operating state of the valve corresponding to the second change in the energization signal.Type: GrantFiled: September 10, 2010Date of Patent: January 5, 2016Assignee: ROBERT BOSCH GMBHInventors: Klaus Joos, Ruben Schlueter, Jens Neuberg, Helerson Kemmer, Holger Rapp, Haris Hamedovic, Joerg Koenig, Anh-Tuan Hoang, Bernd Wichert, Achim Hirchenhein
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Patent number: 9086023Abstract: A method for recognizing uncontrolled combustions in an internal combustion engine which occur independently of the ignition by a spark plug. The pressure oscillations in the combustion chamber triggered by the combustion are detected and evaluated. To allow identification at any time of an uncontrolled combustion prior to ignition by the spark plug and/or prior to the normal combustion initiation for a given ignition point, the rotational speed of a crankshaft of the internal combustion engine which is influenced by the pressure oscillations, is evaluated.Type: GrantFiled: October 13, 2010Date of Patent: July 21, 2015Assignee: ROBERT BOSCH GMBHInventors: Haris Hamedovic, Wolfgang Fischer, Carsten Kluth, Werner Haeming
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Patent number: 9068526Abstract: A method for operating a valve, in particular a fuel injector of an internal combustion engine of a motor vehicle, in which an auxiliary variable is obtained as a function of at least one electrical operating variable of an electromagnetic actuator driving a component of the valve, in particular a valve needle, and in which the auxiliary variable is checked for the presence of a predefinable characteristic. A reference variable is ascertained as a function of the auxiliary variable, the auxiliary variable is modified as a function of the reference variable to obtain a modified auxiliary variable, and the modified auxiliary variable is checked for the presence of the predefinable characteristic.Type: GrantFiled: December 2, 2010Date of Patent: June 30, 2015Assignee: ROBERT BOSCH GMBHInventors: Klaus Joos, Jens Neuberg, Helerson Kemmer, Holger Rapp, Haris Hamedovic, Bernd Wichert, Anh-Tuan Hoang, Ruben Schlueter, Joerg Koenig, Achim Hirchenhein
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Patent number: 9043120Abstract: A method for operating an internal combustion engine in which a speed-based feature of the internal combustion engine, which is correlated with an indicated mean effective pressure of the fuel, is determined during the warm-up of the internal combustion engine and an ideal fuel quantity, which is to be injected into at least one combustion chamber of the internal combustion engine during the warm-up, is ascertained therefrom.Type: GrantFiled: May 2, 2012Date of Patent: May 26, 2015Assignee: ROBERT BOSCH GMBHInventors: Laurent Nack, Ruediger Weiss, Haris Hamedovic, Wolfgang Fischer, Silke Seuling, David Gaenzle
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Publication number: 20150129248Abstract: A percussion unit for a rotary hammer and/or percussion hammer includes a control unit that is configured for open-loop and/or closed loop control of a pneumatic percussion mechanism. In at least one operating state in which the control unit changes from an idle mode to a percussion mode, the control unit is configured to adjust at least one operating parameter temporarily to a starting value.Type: ApplicationFiled: April 24, 2013Publication date: May 14, 2015Inventors: Rainer Nitsche, Matthias Tauber, Antoine Vandamme, Gerd Schlesak, Helge Sprenger, Carsten Diem, Wolfgang Fischer, Haris Hamedovic, Juergen Lennartz, Christian Bertsch, Mario Eduardo Vega Zavala, Achim Duesselberg
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Publication number: 20150101835Abstract: Percussion unit, especially for a rotary hammer and/or percussion hammer, comprising a control unit which is designed for controlling a pneumatic percussion mechanism. According to the disclosure, the control unit comprises at least one load estimation device.Type: ApplicationFiled: April 24, 2013Publication date: April 16, 2015Inventors: Rainer Nitsche, Antoine Vandamme, Thomas Winkler, Helge Sprenger, Haris Hamedovic, Wolfgang Fischer, Christian Bertsch, Mario Eduardo Vega Zavala, Ulli Hoffmann, Thilo Henke, Achim Duesselberg