Patents by Inventor Chrysanthos Tzivanopoulos

Chrysanthos Tzivanopoulos 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).

  • Patent number: 10079408
    Abstract: The invention relates to a method for measuring an electric current of a battery (10) with multiple battery modules (11), having the step of measuring a temperature related to the battery module (11). According to the method, the temperature of a connector is first determined for at least one battery module (11) using the measured temperature and a temperature model, and the electric resistance of the connector is determined using a resistance model and the temperature of the connector. The electric voltage which drops at the connector is then measured, and the electric current flowing through the connector is calculated from the voltage. The invention additionally relates to a corresponding device and to a battery comprising such a device.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: September 18, 2018
    Assignee: Robert Bosch GmbH
    Inventors: Chrysanthos Tzivanopoulos, Joerg Schneider, Lisa Lorenz, Sven Bergmann
  • Patent number: 10070202
    Abstract: Electromechanical adapter having at least one controller, wherein the adapter comprises at least a first interface for communication with at least one monitoring unit at the battery, a second interface for communication with a monitoring unit that is superordinate to the monitoring unit at the battery, and a third interface for the connection of at least one sensor and/or actuator, wherein the controller converts signals between the first and second interfaces.
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: September 4, 2018
    Assignee: Robert Bosch GmbH
    Inventors: Thomas Schaedlich, Jochen Weber, Chrysanthos Tzivanopoulos, Sven Bergmann
  • Patent number: 9997938
    Abstract: A circuit arrangement for charging a DC link capacitor with electrical energy from a charging battery includes a first switching element. The first switching element can optionally electrically connect a first connection contact of the circuit arrangement for the charging battery to a second connection contact of the circuit arrangement for the DC link capacitor. The circuit arrangement also includes an electrical pre-charging resistor that can connect in parallel with the first switching element. The circuit arrangement also includes two second switching elements that can be connected in series with the pre-charging resistor and in parallel with the first switching element.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: June 12, 2018
    Assignees: Robert Bosch GmbH, Samsung SDI Co., Ltd.
    Inventor: Chrysanthos Tzivanopoulos
  • Patent number: 9931957
    Abstract: The invention relates to a battery system (100) with a battery (20), which is designed to supply a high voltage network (70) with electric energy, and a measuring device (130) for measuring at least one insulation resistance provided between the battery (20) and a housing of the battery (20). The measuring device (130) is equipped with two measuring paths (140, 150), each of which is paired with one of two high-voltage connections (21, 22) of the battery (20), each of which comprises a series circuit that comprises a first resistor (142, 152) and a relay (145, 155), and each of which is connected between the paired high-voltage connection (21, 22) and a point (25) that has a housing potential. Furthermore, each series circuit has a semiconductor switch (147, 157). The measuring device (130) also has two functional modes in which the relays (145, 155) of the measuring paths (140, 150) are closed.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: April 3, 2018
    Assignee: Robert Bosch GmbH
    Inventors: Chrysanthos Tzivanopoulos, Thomas Schaedlich
  • Publication number: 20170297447
    Abstract: The invention relates to a battery system (100) with a battery (20), which is designed to supply a high voltage network (70) with electric energy, and a measuring device (130) for measuring at least one insulation resistance provided between the battery (20) and a housing of the battery (20). The measuring device (130) is equipped with two measuring paths (140, 150), each of which is paired with one of two high-voltage connections (21, 22) of the battery (20), each of which comprises a series circuit that comprises a first resistor (142, 152) and a relay (145, 155), and each of which is connected between the paired high-voltage connection (21, 22) and a point (25) that has a housing potential. Furthermore, each series circuit has a semiconductor switch (147, 157). The measuring device (130) also has two functional modes in which the relays (145, 155) of the measuring paths (140, 150) are closed.
    Type: Application
    Filed: August 13, 2015
    Publication date: October 19, 2017
    Inventors: Chrysanthos Tzivanopoulos, Thomas Schaedlich
  • Publication number: 20170207496
    Abstract: The invention relates to a method for measuring an electric current of a battery (10) with multiple battery modules (11), having the step of measuring a temperature related to the battery module (11). According to the method, the temperature of a connector is first determined for at least one battery module (11) using the measured temperature and a temperature model, and the electric resistance of the connector is determined using a resistance model and the temperature of the connector. The electric voltage which drops at the connector is then measured, and the electric current flowing through the connector is calculated from the voltage. The invention additionally relates to a corresponding device and to a battery comprising such a device.
    Type: Application
    Filed: June 10, 2015
    Publication date: July 20, 2017
    Inventors: Chrysanthos Tzivanopoulos, Joerg Schneider, Lisa Lorenz, Sven Bergmann
  • Patent number: 9673488
    Abstract: The disclosure relates to a battery system, a battery, and a motor vehicle having a battery system. In order to be able to determine a battery current flowing through the battery system, the battery system has a measuring unit and a determination unit, which are connected to a battery line of the battery system by means of separate contact or connection points.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: June 6, 2017
    Assignees: Robert Bosch GmbH, Samsung SDI Co., Ltd.
    Inventor: Chrysanthos Tzivanopoulos
  • Publication number: 20160202322
    Abstract: Electromechanical adapter having at least one controller, wherein the adapter comprises at least a first interface for communication with at least one monitoring unit at the battery, a second interface for communication with a monitoring unit that is superordinate to the monitoring unit at the battery, and a third interface for the connection of at least one sensor and/or actuator, wherein the controller converts signals between the first and second interfaces.
    Type: Application
    Filed: August 4, 2014
    Publication date: July 14, 2016
    Inventors: Thomas Schaedlich, Jochen Weber, Chrysanthos Tzivanopoulos, Sven Bergmann
  • Patent number: 9383415
    Abstract: A battery system comprises a battery including a plurality of battery cells and can be connected on an input side to a direct voltage intermediate circuit via at least one contactor, and a diagnostic device configured to diagnose a state of the at least one contactor. The battery system includes a monitoring circuit with a first branch in which the at least one contactor is arranged, and a second branch which is connected parallel thereto and in which a voltage source configured to generate a reference voltage is connected. The diagnostic device is arranged so as to evaluate a diagnostic current which is dependent on the reference voltage and flows in the monitoring circuit, and serves to determine a fault state of the at least one contactor based on a measured current value or a current profile of the diagnostic current.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: July 5, 2016
    Assignee: Robert Bosch GmbH
    Inventor: Chrysanthos Tzivanopoulos
  • Patent number: 9367420
    Abstract: The present disclosure relates to a method and an arrangement for monitoring at least one battery, to a battery having such an arrangement, and to a motor vehicle having a corresponding battery that is used for safely monitoring the battery condition with a reduced amount of hardware. The at least one battery is monitored by analyzing measured variables of the at least one battery using at least one data processing device. The signals exchanged between the at least one battery and the at least one data processing device via a communication connection are monitored at least once.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: June 14, 2016
    Assignee: Robert Bosch GmbH
    Inventors: Jochen Weber, Chrysanthos Tzivanopoulos, Dirk Hasenkopf, Stefan Butzmann, Andreas Heyl, Frank Schindler
  • Publication number: 20150256014
    Abstract: A circuit arrangement for charging a DC link capacitor with electrical energy from a charging battery includes a first switching element. The first switching element can optionally electrically connect a first connection contact of the circuit arrangement for the charging battery to a second connection contact of the circuit arrangement for the DC link capacitor. The circuit arrangement also includes an electrical pre-charging resistor that can connect in parallel with the first switching element. The circuit arrangement also includes two second switching elements that can be connected in series with the pre-charging resistor and in parallel with the first switching element.
    Type: Application
    Filed: September 18, 2013
    Publication date: September 10, 2015
    Applicant: Robert Bosch GmbH
    Inventor: Chrysanthos Tzivanopoulos
  • Patent number: 9091737
    Abstract: A battery system comprises a battery module, including a high-voltage grid and a low-voltage network having a BCU. The battery module includes a plurality of battery cells connected in series and a plurality of cell monitoring units configured to measure and to transmit battery voltages of the battery cells with respect to a first control signal. The BCU is configured to determine a charge state of the battery cells. The BCU includes a microcontroller and a nanocontroller. The nanocontroller is or can be directly connected to the cell monitoring units and is connected to the microcontroller by means of an isolator, and is configured to generate the first control signal and to transmit the signal to the cell monitoring units and to receive the battery voltages of the battery cells transmitted by the cell monitoring units and relay same to the microcontroller.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: July 28, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Chrysanthos Tzivanopoulos, Stefan Butzmann
  • Publication number: 20150125726
    Abstract: The disclosure relates to a battery system, a battery, and a motor vehicle having a battery system. In order to be able to determine a battery current flowing through the battery system, the battery system has a measuring unit and a determination unit, which are connected to a battery line of the battery system by means of separate contact or connection points.
    Type: Application
    Filed: May 17, 2013
    Publication date: May 7, 2015
    Applicant: SAMSUNG SDI Co., Ltd.
    Inventor: Chrysanthos Tzivanopoulos
  • Patent number: 8981800
    Abstract: A current sensor includes a core arranged around a conductor, a sensing element arranged on the core and configured to generate an output variable dependent on a magnetic field in the core, and a measuring unit configured to detect the output variable and to derive a measured value of the current. The current sensor further includes a test coil arranged around the core and a test current generator connected to the test coil. The test current generator is configured to generate a test current signal of a specified amplitude and to output the test current signal to the test coil. The current sensor further includes a testing unit connected to both the measuring unit and the test current generator and configured to output information regarding the current sensor. The information is output as a test signal dependent upon comparing a first and a second measured value.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: March 17, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Chrysanthos Tzivanopoulos, Dirk Hasenkopf
  • Publication number: 20140167703
    Abstract: A monitoring circuit for a battery module includes at least two terminals configured to be connected to bus lines of a bus system, a series circuit having a line terminating resistor, and a switching device. Ends of the series circuit are in each case electrically connected to one of the two terminals.
    Type: Application
    Filed: December 16, 2013
    Publication date: June 19, 2014
    Applicants: Samsung SDI Co., Ltd., Robert Bosch GmbH
    Inventors: Chrysanthos Tzivanopoulos, Thomas Schaedlich
  • Publication number: 20140028322
    Abstract: A battery system comprises a battery including a plurality of battery cells and can be connected on an input side to a direct voltage intermediate circuit via at least one contactor, and a diagnostic device configured to diagnose a state of the at least one contactor. The battery system includes a monitoring circuit with a first branch in which the at least one contactor is arranged, and a second branch which is connected parallel thereto and in which a voltage source configured to generate a reference voltage is connected. The diagnostic device is arranged so as to evaluate a diagnostic current which is dependent on the reference voltage and flows in the monitoring circuit, and serves to determine a fault state of the at least one contactor based on a measured current value or a current profile of the diagnostic current.
    Type: Application
    Filed: July 25, 2013
    Publication date: January 30, 2014
    Applicants: Samsung SDI Co., Ltd., Robert Bosch GmbH
    Inventor: Chrysanthos Tzivanopoulos
  • Publication number: 20130346783
    Abstract: The present disclosure relates to a method and an arrangement for monitoring at least one battery, to a battery having such an arrangement, and to a motor vehicle having a corresponding battery that is used for safely monitoring the battery condition with a reduced amount of hardware. The at least one battery is monitored by analyzing measured variables of the at least one battery using at least one data processing device. The signals exchanged between the at least one battery and the at least one data processing device via a communication connection are monitored at least once.
    Type: Application
    Filed: August 19, 2011
    Publication date: December 26, 2013
    Applicants: SAMSUNG SDI CO LTD, ROBERT BOSCH GMBH
    Inventors: Jochen Weber, Chrysanthos Tzivanopoulos, Dirk Hasenkopf, Stefan Butzmann, Andreas Heyl, Frank Schindler
  • Publication number: 20120319473
    Abstract: A current sensor includes a core arranged around a conductor, a sensing element arranged on the core and configured to generate an output variable dependent on a magnetic field in the core, and a measuring unit configured to detect the output variable and to derive a measured value of the current. The current sensor further includes a test coil arranged around the core and a test current generator connected to the test coil. The test current generator is configured to generate a test current signal of a specified amplitude and to output the test current signal to the test coil. The current sensor further includes a testing unit connected to both the measuring unit and the test current generator and configured to output information regarding the current sensor. The information is output as a test signal dependent upon comparing a first and a second measured value.
    Type: Application
    Filed: October 28, 2010
    Publication date: December 20, 2012
    Applicant: ROBERT BOSCH GMBH
    Inventors: Chrysanthos Tzivanopoulos, Dirk Hasenkorpf
  • Publication number: 20120282500
    Abstract: A battery system comprises a battery module, including a high-voltage grid and a low-voltage network having a BCU. The battery module includes a plurality of battery cells connected in series and a plurality of cell monitoring units configured to measure and to transmit battery voltages of the battery cells with respect to a first control signal. The BCU is configured to determine a charge state of the battery cells. The BCU includes a microcontroller and a nanocontroller. The nanocontroller is or can be directly connected to the cell monitoring units and is connected to the microcontroller by means of an isolator, and is configured to generate the first control signal and to transmit the signal to the cell monitoring units and to receive the battery voltages of the battery cells transmitted by the cell monitoring units and relay same to the microcontroller.
    Type: Application
    Filed: November 5, 2010
    Publication date: November 8, 2012
    Applicant: Robert Bosch GmbH
    Inventors: Chrysanthos Tzivanopoulos, Stefan Butzmann