公开(公告)号：US12237477B2

公开(公告)日：2025-02-25

申请号：US18540665

申请日：2023-12-14

Applicant: CPS Technology Holdings LLC

Inventor： Zhenli Zhang ,  Zhihong Jin ,  Perry M. Wyatt

IPC: H01M10/0525 ,  G01R31/367 ,  G01R31/382 ,  G01R31/392 ,  H01M4/583 ,  H01M4/587 ,  H01M10/42 ,  H01M10/44 ,  H01M10/48

Abstract: A battery system includes a lithium ion battery configured to couple to an electrical system, and a battery management system configured to electrically couple to the lithium ion battery and to control one or more recharge parameters of the lithium ion battery. The battery management system is programmed with an electrochemical model, and the battery management system is configured to monitor parameters of the lithium ion battery, and to control the one or more recharge parameters of the lithium ion battery based on the electrochemical model and the one or more monitored parameters. The electrochemical model determines lithium plating reaction kinetics at an anode of the lithium ion battery, determines a quantity of plated lithium at the anode of the lithium ion battery, or both, and indicates a relationship between the one or more monitored parameters and the lithium plating reaction kinetics, the quantity of plated lithium, or both.

公开(公告)号：US20240396098A1

公开(公告)日：2024-11-28

申请号：US18793408

申请日：2024-08-02

Applicant: CPS Technology Holdings LLC

Inventor： Steven G. Rinaldo ,  Zhihong Jin ,  Perry M. Wyatt

IPC: H01M10/42 ,  B60L3/12 ,  B60L58/12 ,  G01R31/367 ,  H01M10/48

Abstract: One embodiment of the present disclose describes systems and methods responsible for reducing errors in a battery model used in the operation of a battery control system. The battery control system may operate based on a predicted response of the battery derived from the battery model. If the battery model is not calibrated/validated, errors in the battery model may propagate through the predicted response of the battery to the operation of the battery control system. A calibration stimulus may result in a difference between an actual response of the battery and the predicted response of the battery to the same calibration stimulus. A validation technique, which uses a difference between the predicted response and the actual response of the battery to the calibration stimulus as a method to calibrate the battery model, may protect the battery control system from the contribution of errors from an uncalibrated battery model.

公开(公告)号：US20230040026A1

公开(公告)日：2023-02-09

申请号：US17958926

申请日：2022-10-03

Applicant: CPS Technology Holdings LLC

Inventor： Zhenli Zhang ,  Zhihong Jin ,  Perry M. Wyatt

IPC: H01M10/42 ,  H01M10/0525 ,  H01M10/44 ,  H01M10/48 ,  H01M4/587 ,  G01R31/392 ,  G01R31/367 ,  G01R31/382 ,  H01M4/583

Abstract: A battery system includes a lithium ion battery configured to couple to an electrical system, and a battery management system configured to electrically couple to the lithium ion battery and to control one or more recharge parameters of the lithium ion battery. The battery management system is programmed with an electrochemical model, and the battery management system is configured to monitor parameters of the lithium ion battery, and to control the one or more recharge parameters of the lithium ion battery based on the electrochemical model and the one or more monitored parameters. The electrochemical model determines lithium plating reaction kinetics at an anode of the lithium ion battery, determines a quantity of plated lithium at the anode of the lithium ion battery, or both, and indicates a relationship between the one or more monitored parameters and the lithium plating reaction kinetics, the quantity of plated lithium, or both.

公开(公告)号：US20230006308A1

公开(公告)日：2023-01-05

申请号：US17902665

申请日：2022-09-02

Applicant: CPS Technology Holdings LLC

Inventor： Perry M. Wyatt ,  Daniel B. Le ,  Ryan S. Mascarenhas ,  Brian C. Sisk

IPC: H01M50/502 ,  H01M10/052 ,  H01M10/06 ,  B60L58/20 ,  H01M10/0525 ,  H01M50/172 ,  B60R16/033 ,  B60L7/16

Abstract: A 12 volt automotive battery system includes a first battery coupled to an electrical system, in which the first battery include a first battery chemistry, and a second battery coupled in parallel with the first battery and selectively coupled to the electrical system via a first switch, in which the second battery includes a second battery chemistry that has a higher coulombic efficiency than the first battery chemistry. The first switch couples the second battery to the electrical system during regenerative braking to enable the second battery to capture a majority of the power generated during regenerative braking. The 12 volt automotive battery system further includes a variable voltage alternator that outputs a first voltage during regenerative braking to charge the second battery and a second voltage otherwise, in which the first voltage is higher than the second voltage.

公开(公告)号：US11040624B2

公开(公告)日：2021-06-22

申请号：US16160369

申请日：2018-10-15

Applicant: CPS Technology Holdings LLC

Inventor： Zhihong H. Jin ,  Brian C. Sisk ,  Kem M. Obasih ,  Mark R. Johnson ,  Perry M. Wyatt ,  Timur L. Aliyev ,  Zhenli Zhang

IPC: B60L50/60 ,  B60L7/10 ,  G01R31/382 ,  G01R31/3842 ,  B60L58/24 ,  B60L58/26 ,  G01R31/36 ,  H05K7/20

Abstract: Embodiments describe a battery system that includes a first battery module coupled to a regenerative braking system and a control module that controls operation of the battery system by: determining a predicted driving pattern over a prediction horizon using a driving pattern recognition model based in part on a battery current and a previous driving pattern; determining a predicted battery resistance of the first battery module over the prediction horizon using a recursive battery model based in part on the predicted driving pattern, the battery current, a present bus voltage, and a previous bus voltage; determining a target trajectory of a battery temperature of the first battery module over a control horizon using an objective function; and controlling magnitude and duration of electrical power supplied from the regenerative such that a predicted trajectory of the battery temperature is guided toward the target trajectory of the battery temperature during the control horizon.

公开(公告)号：US20200035978A1

公开(公告)日：2020-01-30

申请号：US16595005

申请日：2019-10-07

Applicant: CPS Technology Holdings LLC

Inventor： Perry M. Wyatt ,  Daniel B. Le ,  Ryan S. Mascarenhas ,  Brian C. Sisk

IPC: H01M2/20 ,  B60L58/20 ,  H01M2/06 ,  H01M10/06 ,  H01M10/052 ,  B60L7/16 ,  B60R16/033 ,  H01M10/0525

Abstract: An automotive battery module having dual voltage is disclosed, including a housing and a plurality of battery cells connected to form battery cell blocks disposed in the housing. A battery control unit is provided disposed in the housing and is configured to control operation of a battery system. The battery system includes at least one switching device operably connected to a first battery cell block in a first connection arrangement. The first battery cell block is configured to deliver a first voltage. The switching device is also operably connected to a second battery cell block in a second connection arrangement. The second battery cell block is configured to deliver a second voltage. A plurality of terminals are provided on the housing and electrically coupled to the battery control unit and plurality of battery cells, providing an external electrical connection to deliver the first voltage and the second voltage.