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31.发明公开公开(公告)号：US20240128528A1
公开(公告)日：2024-04-18
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
CPC classification number: H01M10/482 , G01R31/367 , G01R31/382 , G01R31/389 , G01R31/396 , H01M2220/20
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：US11548527B2
公开(公告)日：2023-01-10
申请号：US16884198
申请日：2020-05-27
Inventor： Bharatkumar Hegde , Junfeng Zhao , Lung En Jan , Chen-fang Chang , Ragunathan Rajkumar
IPC: B60W60/00 , B60W40/105 , B60W30/16 , B60W40/072 , B60W40/13 , F02D9/08 , F02D41/30 , F02P5/04 , B60W10/06 , B60W40/08
Abstract: A control system of a vehicle includes: a target speed module configured to, using a parametric driver model and based on first driver parameters, second driver parameters, and vehicle parameters, determine a target vehicle speed trajectory for a future predetermined period; a driver parameters module configured to determine the first driver parameters based on conditions within a predetermined distance in front of the vehicle; and a control module configured to adjust at least one actuator of the vehicle based on the target vehicle speed trajectory and a present vehicle speed.
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公开(公告)号：US10988130B2
公开(公告)日：2021-04-27
申请号：US16249171
申请日：2019-01-16
Applicant: GM Global Technology Operations LLC
Inventor： Ibrahim Haskara , Chen-fang Chang
Abstract: A method for controlling continuous and discrete actuators (e.g., modes) in a powertrain system includes receiving preview information from a sensor(s) describing an upcoming dynamic state at a future time point, and providing control inputs for the actuators to a controller that includes the preview information. The input set collectively describes a future torque or speed output state at the future time point. The controller processes the input set via a dynamical predictive model, in real time, to determine control solutions to take at the present time point for implementing the dynamic state at the future time point. A lowest opportunity cost control solution is determined and optimized. The controller executes the optimized solution at the present time step.
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公开(公告)号：US10207699B2
公开(公告)日：2019-02-19
申请号：US15722357
申请日：2017-10-02
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Chandra S. Namuduri , Venkata Prasad Atluri , Suresh Gopalakrishnan , Jin-Woo Lee , Kevin J. Robinet , Sai Rajagopalan , Chen-fang Chang , Michael Livshiz , Patrick J. O'leary
IPC: B60W20/00 , B60W20/12 , B60W20/15 , B60W40/04 , B60W40/076
Abstract: A vehicle propulsion system includes a combustion engine configured to output a propulsion torque to satisfy a propulsion demand, and a traction electric machine to generate a supplemental torque to selectively supplement the propulsion torque. The propulsion system also includes a controller programmed to forecast an acceleration demand based on at least one estimation model. The controller is also programmed to issue a command indicative of a required axle torque corresponding to the acceleration demand. The controller is further programmed to engage at least one fuel conservation action in response to the required axle torque being within a first predetermined torque threshold range.
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公开(公告)号：US20190010890A1
公开(公告)日：2019-01-10
申请号：US15641944
申请日：2017-07-05
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Yiran Hu , Jun-mo Kang , Steven E. Muldoon , Chen-fang Chang
Abstract: A direct-injection internal combustion engine is described and includes a pressure sensor that is disposed to monitor in-cylinder combustion pressure. A method, executed as a control routine in an attached controller, includes monitoring engine speed, engine load, temperature and combustion pressure. Combustion variation parameters are determined based upon the combustion pressure. A desired state for a combustion parameter can be determined based upon the engine speed, the engine load, and the temperature, and an adjustment to the desired state for the combustion parameter can be determined based upon the combustion variation parameters, wherein the adjustment to the desired state is selected to achieve acceptable states for the combustion variation parameters. Operation of the internal combustion engine is controlled based upon the desired state for the combustion parameter and the adjustment to the desired state for the combustion parameter.
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Patent Agency Ranking
公开(公告)号：US20180195455A1
公开(公告)日：2018-07-12
申请号：US15404878
申请日：2017-01-12
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Yiran Hu , Jun-mo Kang , Chen-fang Chang , Paul M. Najt
CPC classification number: F02D41/2445 , F02D35/028 , F02D41/1454 , F02D41/2451 , F02D41/2467 , F02D41/2496 , F02D41/3035 , F02D41/401 , F02D2200/021 , F02D2200/0414 , F02D2200/101 , F02P5/153
Abstract: An engine assembly includes an engine with an engine block having at least one cylinder. A crankshaft is moveable to define a plurality of crank angles from a bore axis defined by the cylinder to a crank axis defined by the crankshaft. The plurality of angles includes a crank angle (CA50) corresponding to 50% of the fuel received by the cylinder being combusted. A controller is operatively connected to the engine and has a processor and a tangible, non-transitory memory on which is recorded instructions for executing a method for controlling the combustion phasing in the engine during a transient state. The controller is programmed to generate a learned table by storing at least one combustion phasing parameter in the tangible, non-transitory memory. Combustion phasing during a transient state is controlled based at least partially on the learned table.
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公开(公告)号：US20180058350A1
公开(公告)日：2018-03-01
申请号：US15253169
申请日：2016-08-31
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Yongjie Zhu , Jun-mo Kang , Chen-fang Chang
CPC classification number: F02D41/0002 , F02B1/12 , F02B11/00 , F02B17/005 , F02B75/18 , F02D13/0215 , F02D13/0261 , F02D13/0265 , F02D41/1406 , F02D41/26 , F02D41/3035 , F02D2041/001 , F02D2200/0402 , F02M26/01 , Y02T10/18 , Y02T10/42
Abstract: An internal combustion engine is described. Controlling the internal combustion engine includes gathering engine operating data during steady-state engine operation, including gathering a first dataset associated with a cylinder air charge during steady-state operation of the engine in the PVO state and gathering a second dataset associated with a cylinder air charge during steady-state operation of the engine in the NVO state. An optimization routine is executed to determine a first subset of parameters associated with a first relationship for a cylinder air charge model based upon the second dataset. The optimization routine is also executed to determine a second subset of parameters associated with a second relationship for the cylinder air charge model based upon the first dataset. A cylinder air charge is determined in real-time during engine operation based upon the cylinder air charge model and the first and second subsets of parameters.
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公开(公告)号：US12243988B2
公开(公告)日：2025-03-04
申请号：US18350488
申请日：2023-07-11
Applicant: GM Global Technology Operations LLC
Inventor： Insu Chang , Chen-fang Chang , Jun-mo Kang , Hanho Yun , Chunhao J. Lee , Yongjie Zhu , Nicholas W. Pinto
IPC: H01M10/42 , B60L50/64 , H01M10/052 , H01M10/48 , H01M50/204 , H01M50/249
Abstract: A vehicle includes a propulsion system having multiple electric motors. A battery system is connected to the electric motors via a direct current to direct current (DC-DC) converter and an inverter. The battery system includes a battery assembly having a plurality of battery modules. Each of the battery modules has multiple individual battery cells arranged in battery packs, a set of sensors configured to monitor a set of parameters of each battery pack, and a plurality of battery pack mounts. Each battery pack mount includes a base plate and a top plate and an actuator configured to alter a distance between plates. A monitoring unit is configured to monitor a value representative of a battery pack pressure, determine whether the value falls within a pressure threshold window, and maintain the value within the pressure threshold window by actively altering the battery pack pressure.
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公开(公告)号：US20250023120A1
公开(公告)日：2025-01-16
申请号：US18350488
申请日：2023-07-11
Applicant: GM Global Technology Operations LLC
Inventor： Insu Chang , Chen-fang Chang , Jun-mo Kang , Hanho Yun , Chunhao J. Lee , Yongjie Zhu , Nicholas W. Pinto
IPC: H01M10/42 , B60L50/64 , H01M10/052 , H01M10/48 , H01M50/204 , H01M50/249
Abstract: A vehicle includes a propulsion system having multiple electric motors. A battery system is connected to the electric motors via a direct current to direct current (DC-DC) converter and an inverter. The battery system includes a battery assembly having a plurality of battery modules. Each of the battery modules has multiple individual battery cells arranged in battery packs, a set of sensors configured to monitor a set of parameters of each battery pack, and a plurality of battery pack mounts. Each battery pack mount includes a base plate and a top plate and an actuator configured to alter a distance between plates. A monitoring unit is configured to monitor a value representative of a battery pack pressure, determine whether the value falls within a pressure threshold window, and maintain the value within the pressure threshold window by actively altering the battery pack pressure.
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公开(公告)号：US20240424945A1
公开(公告)日：2024-12-26
申请号：US18341176
申请日：2023-06-26
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Insu Chang , Hanho Yun , Jun-mo Kang , Chen-fang Chang
IPC: B60L58/12 , G01R31/396 , H01M10/44 , H01M10/48
Abstract: Aspects of the disclosure include the detection 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: responsive to determining that a charging state has completed, measuring a first cell voltage of a cell of the battery pack; responsive to the first cell voltage exceeding a reference voltage, measuring a second cell voltage of the cell of the battery pack; responsive to the second cell voltage being equal to the reference voltage, measuring a cell pressure of the cell of the battery pack at the reference voltage; determining a difference between the cell pressure and a prior cell pressure at the reference voltage; and responsive to the difference between the cell pressure and the prior cell pressure exceeding a threshold, identifying the cell of the battery pack as a degraded cell.
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