Patents by Inventor Stefan Wickert

Stefan Wickert 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: 10919539
    Abstract: In a method for operating a vehicle control system having at least two actuators acting upon a vehicle state variable, a first actuator is initially activated, and at a time interval prior to arrival at a boundary condition regarding the first actuator, a switchover is made to a second actuator.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: February 16, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Konrad Hofmann, Charlotte Grinenval, Stefan Wickert
  • Patent number: 10457292
    Abstract: A method for operating an automated motor vehicle includes: ascertaining a target trajectory for the motor vehicle, acquiring environmental data of the motor vehicle, ascertaining a tolerance region of the target trajectory based on the acquired environmental data, and guiding the motor vehicle in the tolerance region of the target trajectory in such a way that guidance of the motor vehicle with the smallest possible changes in acceleration and/or with energetically optimized propulsion is definedly more highly prioritized than definedly accurate guidance of the motor vehicle along the target trajectory.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: October 29, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Charlotte Grinenval, Christian Braeuchle, Konrad Hofmann, Stefan Wickert
  • Publication number: 20190135301
    Abstract: In a method for operating a vehicle control system having at least two actuators acting upon a vehicle state variable, a first actuator is initially activated, and at a time interval prior to arrival at a boundary condition regarding the first actuator, a switchover is made to a second actuator.
    Type: Application
    Filed: April 7, 2017
    Publication date: May 9, 2019
    Inventors: Konrad Hofmann, Charlotte Grinenval, Stefan Wickert
  • Patent number: 10024923
    Abstract: Testing of a vehicle battery in a state removed from a vehicle, using a testing device that is fashioned for testing the vehicle battery installed in the vehicle using an on-board diagnostic interface of the vehicle. The device has: an interface to which a plug of the testing device can be connected, the plug being for connection to the on-board diagnostic interface of the vehicle; an electrical connecting device via which at least one electrical vehicle battery terminal of the vehicle battery is connectable to the device; and an adapter device by which signals receivable from the electrical vehicle battery terminal of the vehicle battery via the connecting device are conductible to the interface in such a way that the signals at the interface for the testing device are capable of being tested via the plug corresponding to a configuration of the on-board diagnostic interface of the vehicle.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: July 17, 2018
    Assignee: ROBERT BOSCH GMBH
    Inventors: Peter Eitel, Xin Wang, Stefan Wickert, Andreas Walter, Philipp Hagemann, Guenter Siegel
  • Publication number: 20180050701
    Abstract: A method for operating an automated motor vehicle includes: ascertaining a target trajectory for the motor vehicle, acquiring environmental data of the motor vehicle, ascertaining a tolerance region of the target trajectory based on the acquired environmental data, and guiding the motor vehicle in the tolerance region of the target trajectory in such a way that guidance of the motor vehicle with the smallest possible changes in acceleration and/or with energetically optimized propulsion is definedly more highly prioritized than definedly accurate guidance of the motor vehicle along the target trajectory.
    Type: Application
    Filed: August 15, 2017
    Publication date: February 22, 2018
    Inventors: Charlotte Grinenval, Christian Braeuchle, Konrad Hofmann, Stefan Wickert
  • Patent number: 9806384
    Abstract: A regulating device for regulating a cooling circuit is described. The regulating device according to the disclosure includes a first regulating stage, wherein the first regulating stage is designed to determine, using one or more input variables, a cooling/heating power of the cooling circuit or a variable proportional thereto. The first regulating stage is also designed to determine a first control deviation. The first regulating stage is also designed to output a controlled variable of the first regulating stage comprising a desired temperature of a coolant or a variable proportional thereto, which is derived from the first control deviation. The regulating device according to the disclosure also includes a second regulating stage, wherein the second regulating stage is positioned in series with the first regulating stage and designed to receive the controlled variable of the first regulating stage as a control output. The second regulating stage is also designed to determine a second control deviation.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: October 31, 2017
    Assignees: Robert Bosch GmbH, Samsung SDI Co., Ltd.
    Inventors: Stefan Wickert, Christian Loew
  • Patent number: 9746523
    Abstract: The disclosure relates to a method for determining at least one state of a plurality of spatially combined battery cells connected to each other by circuitry. The state is determined by observing battery cells by means of at least one observer structure. A subset of a plurality of battery cells is observed and the state derived from the observation is determined for more battery cells than for the observed battery cells. The disclosure further relates to a battery comprising a battery management system, which is configured such that the method according to the disclosure can be carried out thereby. The disclosure also relates to a motor vehicle comprising a battery according to the disclosure.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: August 29, 2017
    Assignees: Samsung SDI Co., Ltd., Robert Bosch GmbH
    Inventors: Andre Boehm, Stefan Wickert
  • Patent number: 9643508
    Abstract: A method for initializing and operating a battery management system is disclosed. The method comprises the following steps. First, start the battery management system. Next, read battery variables which are stored in a nonvolatile memory of the battery and comprise the last state of charge of the battery. Then measure the open-circuit voltage of the battery. Next, determine an instantaneous state of charge value on the basis of the measured open-circuit voltage. Then determine an estimated value of the state of charge of the battery as a function of both the stored last state of charge of the battery and the instantaneous state of charge value. Then initialize the state of charge in the battery management system using the determined estimated value of the state of charge. Finally, operate the battery management system with the initialized values.
    Type: Grant
    Filed: August 18, 2010
    Date of Patent: May 9, 2017
    Assignees: Samsung SDI Co., Ltd., Robert Bosch GmbH
    Inventors: Andre Boehm, Stefan Wickert
  • Patent number: 9638758
    Abstract: A method is used for monitoring a battery pack to check claims under guarantee that could possibly be invalid due to incorrect opening of the battery pack. The battery pack includes at least one electrochemical cell. When the battery pack is monitored, whether the battery pack has been opened is detected and any details relating to an event of opening are recorded in a non-erasable storage medium.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: May 2, 2017
    Assignees: Robert Bosch GmbH, Samsung SDI Co., Ltd.
    Inventors: Stefan Wickert, Prashant Sharma
  • Patent number: 9466990
    Abstract: A method for enhancing a battery management system for determining at least one limit value for a first characteristic variable of a battery. The method includes measuring different values of a further characteristic variable for predetermined values of the first characteristic variable in order to determine limit values of the further characteristic variable for charging and/or discharging the battery for the predetermined values of the first characteristic variable, with the result that battery discharging or charging corresponding to the limit values does not result in a battery voltage outside a permissible battery voltage range if the battery has that predetermined value of the characteristic variable which is associated with the respective limit value. The method further includes determining charging and/or discharging limit values of the characteristic variable for predetermined values of the further characteristic variable using the determined charging and/or discharging limit values.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: October 11, 2016
    Assignees: Robert Bosch GmbH, Samsung SDI Co., Ltd.
    Inventors: Andre Boehm, Stefan Wickert
  • Patent number: 9459324
    Abstract: A device comprises a battery having a multiplicity of battery cells and a sensor system for the redundant determination of a battery current flowing through the poles of the battery. The sensor system comprises a current measuring device for detecting the battery current and providing a current measurement value. Furthermore, the device comprises a voltage measuring device for separately detecting a variation with time of the single-cell voltage of at least one battery cell and providing at least one variation with time of a voltage measurement value. Furthermore, the device comprises an evaluating unit which is configured for determining the battery current from the at least one variation with time of the voltage measurement value, providing a corresponding current value and comparing the current value with the current measurement value.
    Type: Grant
    Filed: April 3, 2013
    Date of Patent: October 4, 2016
    Assignees: Robert Bosch GmbH, Samsung SDI Co., Ltd.
    Inventors: Andre Boehm, Stefan Wickert, Anne Heubner, Sven Bergmann, Stefan Butzmann
  • Publication number: 20160282419
    Abstract: Testing of a vehicle battery in a state removed from a vehicle, using a testing device that is fashioned for testing the vehicle battery installed in the vehicle using an on-board diagnostic interface of the vehicle. The device has: an interface to which a plug of the testing device can be connected, the plug being for connection to the on-board diagnostic interface of the vehicle; an electrical connecting device via which at least one electrical vehicle battery terminal of the vehicle battery is connectable to the device; and an adapter device by which signals receivable from the electrical vehicle battery terminal of the vehicle battery via the connecting device are conductible to the interface in such a way that the signals at the interface for the testing device are capable of being tested via the plug corresponding to a configuration of the on-board diagnostic interface of the vehicle.
    Type: Application
    Filed: October 9, 2014
    Publication date: September 29, 2016
    Inventors: Peter Eitel, Xin Wang, Stefan Wickert, Andreas Walter, Philipp Hagemann, Guenter Siegel
  • Publication number: 20150094971
    Abstract: A method for determining a maximum available first constant current of a battery over a first prediction period includes determining a maximum available second constant current for a second prediction period. The second prediction period occurs after the first prediction period. The method can further include limiting a first difference between the maximum available first constant current and the maximum available second constant current to one of less than or equal to a prescribed absolute value. The method can further include determining a maximum available first constant power of the battery over the first prediction period.
    Type: Application
    Filed: February 6, 2013
    Publication date: April 2, 2015
    Inventors: Andre Boehm, Michael Rueger, Anne Heubner, Stefan Wickert
  • Patent number: 8989933
    Abstract: A method for monitoring the conditions of driving systems can be used in particular to control driving systems in hybrid vehicles with particular consideration given to the exhaust emission. The method monitors the conditions of driving systems that comprise an internal combustion engine and an electric motor with an energy source. A first power value for operating the internal combustion engine and a second power value for describing the power that can be provided by the energy source are ascertained, and the first and second power values are compared with each other to monitor the conditions of the driving system. The driving system is controlled dependent on the result of the comparison.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: March 24, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Andre Boehm, Stefan Wickert
  • Publication number: 20150007972
    Abstract: A regulating device for regulating a cooling circuit is described. The regulating device according to the disclosure includes a first regulating stage, wherein the first regulating stage is designed to determine, using one or more input variables, a cooling/heating power of the cooling circuit or a variable proportional thereto. The first regulating stage is also designed to determine a first control deviation. The first regulating stage is also designed to output a controlled variable of the first regulating stage comprising a desired temperature of a coolant or a variable proportional thereto, which is derived from the first control deviation. The regulating device according to the disclosure also includes a second regulating stage, wherein the second regulating stage is positioned in series with the first regulating stage and designed to receive the controlled variable of the first regulating stage as a control output. The second regulating stage is also designed to determine a second control deviation.
    Type: Application
    Filed: January 29, 2013
    Publication date: January 8, 2015
    Inventors: Stefan Wickert, Christian Loew
  • Publication number: 20140114595
    Abstract: A method for determining a maximum constant current of a battery available over a prediction period is described. The method comprises determining a battery state and determining the solution to a differential equation which describes the temporal development of the battery state over the course of the prediction period with the aid of an equivalent circuit diagram model. A battery management unit is also provided and is configured to carry out the method according to the disclosure. The battery management unit includes a device configured to determine the battery state and a control unit configured to determine the solution to the differential equation. A battery having a battery management unit according to the disclosure and a motor vehicle comprising a battery management unit according to the disclosure or a battery according to the disclosure are also provided.
    Type: Application
    Filed: April 4, 2012
    Publication date: April 24, 2014
    Applicants: SAMSUNG SDI CO., LTD., ROBERT BOSCH GMBH
    Inventors: Stefan Wickert, Anne Heubner
  • Publication number: 20140035592
    Abstract: A method is used for monitoring a battery pack to check claims under guarantee that could possibly be invalid due to incorrect opening of the battery pack. The battery pack includes at least one electrochemical cell. When the battery pack is monitored, whether the battery pack has been opened is detected and any details relating to an event of opening are recorded in a non-erasable storage medium.
    Type: Application
    Filed: February 16, 2012
    Publication date: February 6, 2014
    Applicants: Samsung SDI Co., Ltd., Robert Bosch GmbH
    Inventors: Stefan Wickert, Prashant Sharma
  • Publication number: 20140038017
    Abstract: An arrangement includes at least one electrochemical cell, a housing, and a closure device. The housing is configured to contain the at least one electrochemical cell. The arrangement is configured such that removal or unregistered removal of one or more of the at least one electrochemical cell from the housing is prevented when the closure device is locked.
    Type: Application
    Filed: February 16, 2012
    Publication date: February 6, 2014
    Inventors: Stefan Wickert, Prashant Sharma
  • Publication number: 20140021926
    Abstract: The disclosure relates to a method for enhancing a battery management system for determining at least one limit value for a first characteristic variable of a battery. The method includes measuring different values of a further characteristic variable for predetermined values of the first characteristic variable in order to determine limit values of the further characteristic variable for charging and/or discharging the battery for the predetermined values of the first characteristic variable, with the result that battery discharging or charging corresponding to the limit values does not result in a battery voltage outside a permissible battery voltage range if the battery has that predetermined value of the characteristic variable which is associated with the respective limit value.
    Type: Application
    Filed: July 16, 2013
    Publication date: January 23, 2014
    Inventors: Andre Boehm, Stefan Wickert
  • Publication number: 20130314042
    Abstract: The present disclosure relates to a method for ascertaining the open circuit voltage (OCV) of a battery, to a battery with a module configured to ascertain the open circuit voltage and to a motor vehicle having a corresponding battery, which is configured to ascertain the ageing-dependent open circuit voltage of battery packs installed in a vehicle. To this end it is proposed to determine the open circuit voltage during the charging operation of the battery. Furthermore proposed are a battery having a module for ascertaining the open circuit voltage of a battery, and a vehicle having a battery of this type.
    Type: Application
    Filed: November 21, 2011
    Publication date: November 28, 2013
    Applicants: Samsung SDI Co., Ltd., Robert Bosch GmbH
    Inventors: Andre Boehm, Stefan Wickert