Patents by Inventor Zoltan Ersek
Zoltan Ersek 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: 10992162Abstract: Method for detecting a state of an electric system (150) in a motor vehicle, said electric system (150) comprising a generator unit that includes an electric machine (100) with a rotor winding (110) and a stator winding (120) as well as a rectifier (130) which is connected to the electric machine (100) and via which the electric system (150) is connected to the electric machine (100); in said method, a decision about the current state of the electric system (150), especially about the availability of a battery (200) of the electric system, is made in accordance with an excitation current (IE) flowing through the rotor winding (110) of the electric machine (100).Type: GrantFiled: October 28, 2016Date of Patent: April 27, 2021Assignee: Robert Bosch GmbHInventors: Manuel Mueller, Miriam Riederer, Udo Schulz, Wolfgang Fischer, Zoltan Ersek
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Patent number: 10914776Abstract: The invention relates to a method for detecting an error in a generator unit which has an electric machine (100) with a rotor winding (110), a stator winding (120), and a rectifier (130) connected thereto, via which the electric machine (100) is connected to an onboard electrical system (150) of a motor vehicle, wherein a voltage of the onboard electrical system (150) is controlled to a target value via an excitation current (IE) through the rotor winding (110) of the electric machine (100), and a curve of a phase voltage (Uy) of the stator winding (120) is monitored, wherein an error in the generator unit is inferred when a change of the phase voltage (Uy) is detected and a voltage of the onboard electrical system (150) changing within a threshold value range (S) is detected.Type: GrantFiled: November 22, 2016Date of Patent: February 9, 2021Assignee: Robert Bosch GmbHInventors: Manuel Mueller, Sebastian Paulus, Zoltan Ersek
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Patent number: 10788527Abstract: A method for detecting an error in a generator unit which has an electric machine (100) with a rotor winding (110) and a stator winding (120) and a rectifier (130) connected thereto, via which rectifier the electric machine (100) is connected to an electrical system (150) of a motor vehicle, the excitation current (IE) flowing through the rotor winding (110) of the electric machine (100) being plotted and it being concluded that there is an error in the generator unit depending on whether a frequency component (A) of a frequency spectrum of the plot of the excitation current (IE) in a frequency range above a lower speed limit (SW) is larger than a threshold value (S).Type: GrantFiled: October 28, 2016Date of Patent: September 29, 2020Assignee: Robert Bosch GmbHInventors: Manuel Mueller, Miriam Riederer, Paul Mehringer, Sebastian Paulus, Zoltan Ersek
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Patent number: 10581354Abstract: A method for detecting a fault in a generator unit that has an electrical machine including a rotor winding and a stator winding and a rectifier connected thereto, via which the electrical machine is connected to an electrical system of a motor vehicle. Whether or not the fault exists is determined as a function of an excitation current traversing the rotor winding of the electrical machine and as a function of a setpoint value of the excitation current.Type: GrantFiled: October 28, 2016Date of Patent: March 3, 2020Assignee: Robert Bosch GmbHInventor: Zoltan Ersek
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Patent number: 10302462Abstract: The various embodiment of the present disclosure provides a system to define and identify an absolute mechanical reference position for a rotating element, The system comprises a radial ring magnet comprising plurality of pole pairs mounted to the rotating element, a first magnetic sensor in proximity of the radial ring magnet to detect angular position of said rotating element, at least one second magnetic sensor in proximity of the radial ring magnet to detect the passage of each of the pole pair and a control module adapted to define said absolute mechanical position by computing a unique first set of feature values for each of said plurality of pole pairs based on responses of said first magnetic sensor and said second magnetic sensor. The first set of feature values is stored in a memory unit.Type: GrantFiled: September 21, 2015Date of Patent: May 28, 2019Assignee: Robert Bosch GmbHInventors: Zoltan Ersek, Arunkumar Motaganahalli Srinivasamurthy, Shadakshara P. Murthy
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Publication number: 20190097557Abstract: A method for detecting a fault in a generator unit that has an electrical machine including a rotor winding and a stator winding and a rectifier connected thereto, via which the electrical machine is connected to an electrical system of a motor vehicle. Whether or not the fault exists is determined as a function of an excitation current traversing the rotor winding of the electrical machine and as a function of a setpoint value of the excitation current.Type: ApplicationFiled: October 28, 2016Publication date: March 28, 2019Applicant: Robert Bosch GmbHInventor: Zoltan Ersek
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Publication number: 20190011488Abstract: The invention relates to a method for detecting an error in a generator unit which has an electric machine (100) with a rotor winding (110), a stator winding (120), and a rectifier (130) connected thereto, via which the electric machine (100) is connected to an onboard electrical system (150) of a motor vehicle, wherein a voltage of the onboard electrical system (150) is controlled to a target value via an excitation current (IE) through the rotor winding (110) of the electric machine (100), and a curve of a phase voltage (UY) of the stator winding (120) is monitored, wherein an error in the generator unit is inferred when a change of the phase voltage (Uy) is detected and a voltage of the onboard electrical system (150) changing within a threshold value range (S) is detected.Type: ApplicationFiled: November 22, 2016Publication date: January 10, 2019Inventors: Manuel Mueller, Sebastian Paulus, Zoltan Ersek
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Publication number: 20180340969Abstract: A method for detecting an error in a generator unit which has an electric machine (100) with a rotor winding (110) and a stator winding (120) and a rectifier (130) connected thereto, via which rectifier the electric machine (100) is connected to an electrical system (150) of a motor vehicle, the excitation current (IE) flowing through the rotor winding (110) of the electric machine (100) being plotted and it being concluded that there is an error in the generator unit depending on whether a frequency component (A) of a frequency spectrum of the plot of the excitation current (IE) in a frequency range above a lower speed limit (SW) is larger than a threshold value (S).Type: ApplicationFiled: October 28, 2016Publication date: November 29, 2018Inventors: Manuel Mueller, Miriam Riederer, Paul Mehringer, Sebastian Paulus, Zoltan Ersek
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Publication number: 20180304751Abstract: Method for detecting a state of an electric system (150) in a motor vehicle, said electric system (150) comprising a generator unit that includes an electric machine (100) with a rotor winding (110) and a stator winding (120) as well as a rectifier (130) which is connected to the electric machine (100) and via which the electric system (150) is connected to the electric machine (100); in said method, a decision about the current state of the electric system (150), especially about the availability of a battery (200) of the electric system, is made in accordance with an excitation current (IE) flowing through the rotor winding (110) of the electric machine (100).Type: ApplicationFiled: October 28, 2016Publication date: October 25, 2018Inventors: Manuel Mueller, Miriam Riederer, Udo Schulz, Wolfgang Fischer, Zoltan Ersek
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Patent number: 10014813Abstract: A method is provided for switching on and switching off an n-phase electric machine in a motor vehicle. The n-phase electric machine includes a rotor with a rotor winding, and a stator with an n-phase stator winding. An excitation current may be applied to the rotor, and an n-phase phase voltage may be applied to the stator. The excitation current is switched on or off, a parameter which influences a synchronous generated internal voltage is determined, and the phase voltage is switched on or off when the parameter which influences the synchronous generated internal voltage reaches a certain threshold value.Type: GrantFiled: July 24, 2014Date of Patent: July 3, 2018Assignees: ROBERT BOSCH GMBH, SEG AUTOMOTIVE GERMANY GMBHInventors: Zoltan Ersek, Julian Roesner
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Publication number: 20170241813Abstract: The various embodiment of the present disclosure provides a system to define and identify an absolute mechanical reference position for a rotating element, The system comprises a radial ring magnet comprising plurality of pole pairs mounted to the rotating element, a first magnetic sensor in proximity of the radial ring magnet to detect angular position of said rotating element, at least one second magnetic sensor in proximity of the radial ring magnet to detect the passage of each of the pole pair and a control module adapted to define said absolute mechanical position by computing a unique first set of feature values for each of said plurality of pole pairs based on responses of said first magnetic sensor and said second magnetic sensor. The first set of feature values is stored in a memory unit.Type: ApplicationFiled: September 21, 2015Publication date: August 24, 2017Applicants: Robert Bosch GmbH, Samsung SDI Co., Ltd,Inventors: Zoltan Ersek, Arunkumar Motaganahalli Srinivasamurthy, Shadakshara P. Murthy
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Publication number: 20160181963Abstract: A method is provided for switching on and switching off an n-phase electric machine in a motor vehicle. The n-phase electric machine includes a rotor with a rotor winding, and a stator with an n-phase stator winding. An excitation current may be applied to the rotor, and an n-phase phase voltage may be applied to the stator. The excitation current is switched on or off, a parameter which influences a synchronous generated internal voltage is determined, and the phase voltage is switched on or off when the parameter which influences the synchronous generated internal voltage reaches a certain threshold value.Type: ApplicationFiled: July 24, 2014Publication date: June 23, 2016Inventors: Zoltan ERSEK, Julian ROESNER
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Patent number: 9267318Abstract: The invention relates to a method for providing an indication of movement from a sensor signal from a position transmitter (9), wherein the indication of movement indicates a speed of movement, wherein the sensor signal from the position transmitter (9) generates an edge following a movement via a particular path range having the following steps:—a pulse duration (dT) is ascertained (S1) as the interval of time between the last two provided edges of the sensor signal;—depending on whether a period which corresponds to the pulse duration (dT) has elapsed since the last provided edge of the sensor signal, an indication which is dependent on the pulse duration (dT) or an indication which is dependent on the period since the last edge of the sensor signal is provided (S4, S6) as an indication of movement.Type: GrantFiled: November 17, 2011Date of Patent: February 23, 2016Assignee: Robert Bosch GmbHInventors: Zoltan Ersek, Janos Markus
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Publication number: 20130305608Abstract: The invention relates to a method for providing an indication of movement from a sensor signal from a position transmitter (9), wherein the indication of movement indicates a speed of movement, wherein the sensor signal from the position transmitter (9) generates an edge following a movement via a particular path range having the following steps:—a pulse duration (dT) is ascertained (S1) as the interval of time between the last two provided edges of the sensor signal;—depending on whether a period which corresponds to the pulse duration (dT) has elapsed since the last provided edge of the sensor signal, an indication which is dependent on the pulse duration (dT) or an indication which is dependent on the period since the last edge of the sensor signal is provided (S4, S6) as an indication of movement.Type: ApplicationFiled: November 17, 2011Publication date: November 21, 2013Applicant: ROBERT BOSCH GMBHInventors: Zoltan Ersek, Janos Markus
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Publication number: 20120191305Abstract: The invention relates to a method for operating a closing device (1) in a motor vehicle for detecting a pinching case, wherein an object is pinched between a moving closing element (2) of the closing device and a stop edge (3) of the closing device (1) during a closing operation, having the following steps: determining (S2) an indicator of the instantaneous closing force during a closing operation; determining (S4) an indicator of a force of acceleration indicating a force of acceleration acting on the closing element (2) of the closing device (1) during a closing operation; providing (S5) a closing force threshold value depending on the indicator of the force of acceleration; detecting (S6) a pinch case if the determined indicator of the instantaneous closing force exceeds the closing force threshold value.Type: ApplicationFiled: July 2, 2010Publication date: July 26, 2012Applicant: ROBERT BOSCH GMBHInventors: Zoltan Ersek, Gabriel Wetzel, Kenneth Lawrence Garvey