公开(公告)号：US20210111446A1

公开(公告)日：2021-04-15

申请号：US16598037

申请日：2019-10-10

申请人： Robert Bosch GmbH

发明人： Sarah Stewart ,  John F. Christensen ,  Nikhil Ravi ,  Maksim Subbotin ,  Reinhardt Klein ,  Yongfang Cheng

IPC分类号： H01M10/633 ,  H01M10/44 ,  H02J7/00

摘要： In one embodiment, an electrochemical battery system includes at least one electrochemical cell, a thermal control system operably connected to the at least one electrochemical cell, a memory in which a physics-based model of the at least one electrochemical cell is stored and in which program instructions are stored, and a controller operably connected to the at least one electrochemical cell, the thermal control system and the memory. The controller is configured to execute the program instructions to identify a first requested operation, obtain a first generated target temperature which is based on the physics-based model and the identified first requested operation, and control the thermal control system based upon the obtained first target temperature while controlling the at least one electrochemical cell based upon the identified first requested operation.

公开(公告)号：US10389151B2

公开(公告)日：2019-08-20

申请号：US15727893

申请日：2017-10-09

申请人： Robert Bosch GmbH

发明人： Nikhil Ravi ,  Anantharaman Subbaraman ,  Reinhardt Klein ,  Ashish Krupadanam ,  Anahita MirTabatabaei ,  Gerd Simon Schmidt ,  Christoph Klee

IPC分类号： H02J7/04 ,  H02J7/00 ,  G01R31/3842

摘要： A method for charging a battery comprises: measuring a battery voltage with a voltage sensor and a battery current with a current sensor; applying, with a charging circuit, a first charging current to the battery until the measured battery voltage exceeds a predetermined voltage threshold, a magnitude of the first charging current being held at a first constant value; applying, with the charging circuit, in response to the measured battery voltage exceeding the predetermined voltage threshold, a second charging current to the battery until a cutoff criterion is satisfied, a magnitude of the second charging current being such that the battery voltage exceeds a steady state voltage limit for the battery; after the cutoff criterion is satisfied, determining a rest voltage of the battery; and updating the cutoff criterion based on a difference between the determined rest voltage and a target rest voltage.

公开(公告)号：US10312699B2

公开(公告)日：2019-06-04

申请号：US15664814

申请日：2017-07-31

申请人： Robert Bosch GmbH

发明人： Anantharaman Subbaraman ,  Nikhil Ravi ,  Reinhardt Klein ,  Gerd Simon Schmidt ,  Christopher Mayhew

IPC分类号： G01N27/416 ,  H02J7/00 ,  G01R31/367 ,  G01R31/374 ,  G01R31/392 ,  G01R31/3842

摘要： A method for monitoring a battery while the battery is connected to a load has been developed. The method includes measuring a first current level flowing through the battery to the load and a first voltage level of the battery at a first time, generating an estimated open cell voltage (OCV) of the battery at the first time based on the first current level, the first voltage level, and a predetermined model of the battery, identifying a first excitation level of the battery at the first time based on the first voltage level, the first current level and a cost optimization process, and identifying at least one of a state of charge (SoC) and state of health (SoH) of the battery using the estimated OCV only in response to the first excitation level being below a predetermined threshold.

公开(公告)号：US20170338666A1

公开(公告)日：2017-11-23

申请号：US15160659

申请日：2016-05-20

申请人： Robert Bosch GmbH

发明人： John F. Christensen ,  Reinhardt Klein ,  Ashish Krupadanam ,  Anahita MirTabatabaei ,  Nikhil Ravi

IPC分类号： H02J7/00

CPC分类号： H02J7/007 ,  G01R31/367 ,  H01M10/425 ,  H01M10/441 ,  H01M10/48 ,  H01M2010/4271 ,  H02J7/0021

摘要： A battery management system comprising a processor and a memory storing instructions that, when executed by the processor, cause the battery management system to estimate one or more states of the battery by applying a battery model to account for physical parameters of a chemical composition of the battery based on one or more measured characteristics of the battery and the one or more estimated characteristics of the battery and regulate a first charging mode of the battery based on the estimation of the one or more states of the one or more battery cells and switch between the first charging mode and a second charging mode based on the estimation of the one or more states of the battery to allow for rapid charging of the battery.

公开(公告)号：US20170194669A1

公开(公告)日：2017-07-06

申请号：US15072839

申请日：2016-03-17

申请人： Robert Bosch GmbH

发明人： John F. Christensen ,  Reinhardt Klein ,  Abdul-Kader Srouji ,  Ashish Krupadanam ,  Anahita MirTabatabaei ,  Nikhil Ravi

IPC分类号： H01M10/42 ,  H01M10/613 ,  H02J7/00 ,  H01M10/623 ,  H01M10/625 ,  H01M10/633 ,  H01M10/48 ,  H01M10/615

CPC分类号： H01M10/4257 ,  G01R31/362 ,  G01R31/3651 ,  G01R31/3679 ,  H01M10/425 ,  H01M10/443 ,  H01M10/48 ,  H01M10/482 ,  H01M10/486 ,  H01M10/613 ,  H01M10/615 ,  H01M10/623 ,  H01M10/625 ,  H01M10/633 ,  H01M10/6567 ,  H01M2010/4271 ,  H01M2010/4278 ,  H01M2220/20 ,  H01M2220/30 ,  H02J7/0068

摘要： Methods and systems are described of managing a battery system. The battery system including at least one battery cell and one or more sensors configured to measure a temperature of the at least one battery cell. The method includes receiving a measurement of the temperature of the at least one battery cell, estimating an open circuit potential of the at least one battery cell, estimating a capacity fade of the at least one battery cell based on the open circuit potential of the at least one battery cell and a ratio of a change in the open circuit potential relative to a change in the temperature of the at least one battery cell, and regulating at least one of charging or discharging of the at least one battery cell based on the estimation of the capacity fade.

公开(公告)号：US10886575B2

公开(公告)日：2021-01-05

申请号：US16196978

申请日：2018-11-20

申请人： Robert Bosch GmbH

发明人： John F. Christensen ,  Reinhardt Klein ,  Abdul-Kader Srouji ,  Ashish Krupadanam ,  Anahita MirTabatabaei ,  Nikhil Ravi

IPC分类号： H02J7/00 ,  H01M10/42 ,  G01R31/367 ,  G01R31/392 ,  H01M10/44 ,  H01M10/48 ,  H01M10/613 ,  H01M10/615 ,  H01M10/623 ,  H01M10/625 ,  H01M10/633 ,  G01R31/3835 ,  H01M10/6567

摘要： Methods and systems are described of managing a battery system. The battery system including at least one battery cell and one or more sensors configured to measure a temperature of the at least one battery cell. The method includes receiving a measurement of the temperature of the at least one battery cell, estimating an open circuit potential of the at least one battery cell, estimating a capacity fade of the at least one battery cell based on the open circuit potential of the at least one battery cell and a ratio of a change in the open circuit potential relative to a change in the temperature of the at least one battery cell, and regulating at least one of charging or discharging of the at least one battery cell based on the estimation of the capacity fade.

公开(公告)号：US10224579B2

公开(公告)日：2019-03-05

申请号：US15072839

申请日：2016-03-17

申请人： Robert Bosch GmbH

发明人： John F. Christensen ,  Reinhardt Klein ,  Abdul-Kader Srouji ,  Ashish Krupadanam ,  Anahita MirTabatabaei ,  Nikhil Ravi

IPC分类号： H02J7/00 ,  H01M10/42 ,  H01M10/613 ,  H01M10/615 ,  H01M10/623 ,  H01M10/625 ,  H01M10/633 ,  H01M10/48 ,  G01R31/36 ,  H01M10/44 ,  H01M10/6567

摘要： Methods and systems are described of managing a battery system. The battery system including at least one battery cell and one or more sensors configured to measure a temperature of the at least one battery cell. The method includes receiving a measurement of the temperature of the at least one battery cell, estimating an open circuit potential of the at least one battery cell, estimating a capacity fade of the at least one battery cell based on the open circuit potential of the at least one battery cell and a ratio of a change in the open circuit potential relative to a change in the temperature of the at least one battery cell, and regulating at least one of charging or discharging of the at least one battery cell based on the estimation of the capacity fade.

公开(公告)号：US10177419B2

公开(公告)日：2019-01-08

申请号：US15072839

申请日：2016-03-17

申请人： Robert Bosch GmbH

发明人： John F. Christensen ,  Reinhardt Klein ,  Abdul-Kader Srouji ,  Ashish Krupadanam ,  Anahita MirTabatabaei ,  Nikhil Ravi

IPC分类号： H02J7/00 ,  H01M10/42 ,  H01M10/613 ,  H01M10/615 ,  H01M10/623 ,  H01M10/625 ,  H01M10/633 ,  H01M10/48 ,  G01R31/36 ,  H01M10/44 ,  H01M10/6567

摘要： Methods and systems are described of managing a battery system. The battery system including at least one battery cell and one or more sensors configured to measure a temperature of the at least one battery cell. The method includes receiving a measurement of the temperature of the at least one battery cell, estimating an open circuit potential of the at least one battery cell, estimating a capacity fade of the at least one battery cell based on the open circuit potential of the at least one battery cell and a ratio of a change in the open circuit potential relative to a change in the temperature of the at least one battery cell, and regulating at least one of charging or discharging of the at least one battery cell based on the estimation of the capacity fade.

公开(公告)号：US20180145526A1

公开(公告)日：2018-05-24

申请号：US15626553

申请日：2017-06-19

申请人： Robert Bosch GmbH

发明人： Nikhil Ravi ,  Anantharaman Subbaraman ,  Reinhardt Klein ,  Ashish Krupadanam ,  Anahita MirTabatabaei ,  Gerd Simon Schmidt ,  Christoph Klee

IPC分类号： H02J7/00 ,  G01R31/36

CPC分类号： H02J7/0057 ,  G01R31/3624 ,  H02J7/0045 ,  H02J7/007 ,  H02J7/0083 ,  H02J2007/0096

摘要： A method for charging a battery comprises: measuring a battery voltage with a voltage sensor and a battery current with a current sensor; applying, with a charging circuit, a first charging current to the battery until the measured battery voltage exceeds a predetermined voltage threshold, a magnitude of the first charging current being held at a first constant value; applying, with the charging circuit, in response to the measured battery voltage exceeding the predetermined voltage threshold, a second charging current to the battery until a cutoff criterion is satisfied, a magnitude of the second charging current being such that the battery voltage exceeds a steady state voltage limit for the battery; after the cutoff criterion is satisfied, determining a rest voltage of the battery; and updating the cutoff criterion based on a difference between the determined rest voltage and a target rest voltage.

公开(公告)号：US20170222447A1

公开(公告)日：2017-08-03

申请号：US15010873

申请日：2016-01-29

申请人： Robert Bosch GmbH

发明人： Nikhil Ravi ,  Anahita MirTabatabaei ,  Reinhardt Klein ,  Ashish Krupadanam ,  John F. Christensen ,  Aleksandar Kojic ,  Sarah Stewart ,  Sun Ung Kim ,  Christina Johnston

IPC分类号： H02J7/00

摘要： A method of managing a battery system, the battery system including at least one battery cell, at least one sensor configured to measure at least one characteristic of the battery cell, and a battery management system including a microprocessor and a memory, the method comprising receiving by the battery management system, from the at least one sensor at least one measured characteristic of the battery cell at a first time and at least one measured characteristic of the battery cell at a second time. The battery management system estimating, at least one state of the battery cell by applying a physics-based battery model, the physics based battery model being based on differential algebraic equations; and regulating by the battery management system, at least one of charging or discharging of the battery cell based on the at least one estimated state.