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公开(公告)号：US12224412B2
公开(公告)日：2025-02-11
申请号：US17967380
申请日：2022-10-17
Applicant: GM Global Technology Operations LLC
Inventor： Ibrahim Haskara , Bharatkumar Hegde , Chen-fang Chang
IPC: H01M10/48 , G01R31/367 , G01R31/382 , G01R31/389 , G01R31/396
Abstract: A vehicle operates a system and method of predicting a thermal runaway event in a battery pack of the vehicle. The battery pack includes a battery cell. The sensor obtains measurements of a parameter of the battery cell at a plurality of times. The processor is configured to determine a value of at least one feature of the battery cell from the measurements of the parameter, determine a likelihood of the thermal runaway event from the value of the at least one feature, and take an action to prevent the thermal runaway event from occurring based on the likelihood.
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公开(公告)号：US20250015423A1
公开(公告)日：2025-01-09
申请号：US18347990
申请日：2023-07-06
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Yongjie Zhu , Meng Jiang , Chunhao J. Lee , Chen-fang Chang , Insu Chang , Jun-mo Kang
IPC: H01M50/317 , H01M50/202 , H01M50/249
Abstract: A pressure control apparatus for a battery cell includes a housing in which the battery cell is positioned, and a cell plate movably positioned in the housing and separating an interior of the housing into a cell chamber having the battery cell therein, and a pressure chamber having a volume of pressurized fluid therein. The apparatus further includes a valve configured to allow a portion of the pressurized fluid to be removed from the pressure chamber when the pressure in the pressure chamber exceeds a threshold.
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公开(公告)号：US20250006976A1
公开(公告)日：2025-01-02
申请号：US18342279
申请日：2023-06-27
Applicant: GM Global Technology Operations LLC
Inventor： Insu Chang , Jun-mo Kang , Yongjie Zhu , Chunhao J. Lee , Chen-fang Chang
Abstract: A vehicle includes a pressure control device for controlling a pressure at a battery of a vehicle and a method of controlling the pressure of the battery. A support plate is disposed at a first side of the battery. A pressure plate disposed at a second side of the battery opposite the first side. The pressure plate movable with respect to the support plate to control the pressure of the battery. A cam disposed at the pressure plate is configured to rotate to move the pressure plate with respect to the support plate. A cam shaft rotates the cam to move the pressure plate. A motor generates a rotation at the cam shaft.
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公开(公告)号：US20250001902A1
公开(公告)日：2025-01-02
申请号：US18342811
申请日：2023-06-28
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Yongjie Zhu , Chunhao J. Lee , Meng Jiang , Chen-fang Chang , Sanjeev M. Naik
IPC: B60L58/16 , B60L50/60 , G01R31/367 , H01M10/42 , H01M10/48
Abstract: Aspects of the disclosure include a battery management system that actively limits the operational voltage of a cell to avoid a cell pressure surge in response to an indicator of battery cell degradation. An exemplary battery management system can include a memory, computer readable instructions, and one or more processors that perform operations that include: measuring a first cell pressure of a cell of the battery pack at a reference voltage and measuring a second cell pressure of the cell of the battery pack at the reference voltage. A moving average of cell pressure progression is determined from the first cell pressure and the second cell pressure. Responsive to the moving average of cell pressure progression exceeding a cell pressure progression threshold, the cell of the battery pack is identified as a degraded cell and an estimate of remaining cycles for the degraded cell is determined.
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公开(公告)号：US20240300377A1
公开(公告)日：2024-09-12
申请号：US18181092
申请日：2023-03-09
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Ibrahim Haskara , Bharatkumar Hegde , Chen-fang Chang
CPC classification number: B60L58/12 , H01M10/443 , B60L2240/545 , B60L2240/547 , B60L2240/549
Abstract: A system for control of a battery system includes a processor connected to the battery system and configured to perform, in real time during a charging process, acquiring a set of charging parameter measurements, estimating a dynamic performance variable related to an electrochemical phenomenon occurring within the battery system during the charging process, and selecting a stored charging profile from a stored relation based on the charging parameter measurements. The processor is further configured to perform applying a charging current to the battery system based on the selected stored charging profile, inputting the charging parameter measurements, the stored charging profile and the stored relation to a learning agent, and evaluating the stored charging profile according to a reward-based learning process, the learning process including estimating a performance value associated with the stored charging profile. The processor is configured to periodically update the stored charging profile based on the learning process.
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Patent Agency Ranking
公开(公告)号：US20200372729A1
公开(公告)日：2020-11-26
申请号：US16420687
申请日：2019-05-23
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Shiming DUAN , Chaitanya Sankavaram , Azeem Sarwar , Ibrahim Haskara , Chunhao J. Lee , Chen-fang Chang
Abstract: A fault diagnostic system includes: memory including a fault model, the fault model including: a plurality of failure modes of a vehicle; and symptoms respectively associated with each of the failure modes; an updating module configured to: based on a data set, determine a new failure mode that is not already included in the fault model and new symptoms indicative of the occurrence of the new failure mode; modify the fault model by: adding the new failure mode to the fault model; and adding the new symptoms to the fault model in association with the new failure mode; and re-save the fault model in the memory.
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公开(公告)号：US20200224601A1
公开(公告)日：2020-07-16
申请号：US16247746
申请日：2019-01-15
Applicant: GM Global Technology Operations LLC
Inventor： Ibrahim Haskara , Chen-fang Chang , Shiming Duan , Chunhao J. Lee , Azeem Sarwar
Abstract: A method of diagnosing a propulsion system implements a top-down hierarchical examination procedure, in which the propulsion system is analyzed as a whole to determine if the propulsion system is healthy. Data from a first set of vehicle sensors is compared to a system-healthy data cluster to determine if the propulsion system is healthy or unhealthy. If the propulsion system is unhealthy, then a plurality of subsystems of the propulsion system are each analyzed at a first examination level using selective data from the sensors to identify one of the subsystems as an unhealthy subsystem. A plurality of component systems of the unhealthy subsystem are then analyzed at a second examination level using other selective data from the sensors to identify one of the component systems of the unhealthy subsystem as an unhealthy component system.
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8.发明授权公开(公告)号：US10550786B1
公开(公告)日：2020-02-04
申请号：US16149194
申请日：2018-10-02
Applicant: GM Global Technology Operations LLC
Inventor： Ibrahim Haskara , Chen-fang Chang
Abstract: A method controls multiple continuous actuators to achieve a discrete mode of operation in a system. The method may include determining a desired output state of the system, including processing a control input set for the multiple continuous actuators via a dynamical predictive model of the system, and then processing the control input set via the dynamical predictive model to determine possible control solutions for achieving the desired output state of the system at a calibrated future time point. The method may include using a cost function logic block to identify, from among the possible control solutions, a lowest-cost control solution for executing the discrete mode at the future time point, processing the lowest-cost control solution through a real-time optimization logic block to determine an optimized solution for the discrete mode, and then executing the optimized solution at the future time point.
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9.发明申请公开(公告)号：US20250026222A1
公开(公告)日：2025-01-23
申请号：US18355085
申请日：2023-07-19
Applicant: GM Global Technology Operations LLC
Inventor： Bharatkumar Hegde , Ibrahim Haskara , Philip James Prociw , Chen-fang Chang
Abstract: An electric vehicle includes a system for charging a battery of the electric vehicle. The system includes a sensor for obtaining a reference measurement of the battery during charging and a processor. The processor is configured to calculate an augmented state from the reference measurement, determine an anode voltage from the augmented state, compare the anode voltage to a threshold, and adjust a charging rate based on the comparison of the anode voltage to the threshold.
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公开(公告)号：US20240429580A1
公开(公告)日：2024-12-26
申请号：US18341524
申请日：2023-06-26
Applicant: GM Global Technology Operations LLC
Inventor： Alexander Millerman , Chunhao J. Lee , Yongjie Zhu , Insu Chang , Jun-mo Kang , Chen-fang Chang
IPC: H01M50/618 , B60L50/64 , H01M10/42
Abstract: A vehicle, a pressure control device and method for controlling a pressure within a battery of the vehicle. The pressure control device includes a support plate, a pressure plate and an actuator. The pressure plate is configured to move with respect to the support plate. The battery is disposed between the support plate and the pressure plate. The actuator changes between a first shape and a second shape to move the pressure plate with respect to the support plate to control the pressure within the battery.
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