-
公开(公告)号：US20240175933A1
公开(公告)日：2024-05-30
申请号：US18172633
申请日：2023-02-22
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Yusheng Zou , Ibrahim Haskara , Bharatkumar Hegde , Chunhao J Lee
IPC: G01R31/392 , B60L58/16 , G01R31/3835 , G01R31/396
CPC classification number: G01R31/392 , B60L58/16 , G01R31/3835 , G01R31/396 , H01M2010/4278
Abstract: A computer-implemented method for predicting a quality of a battery includes receiving a first battery measurement data for a first duration of soaking the battery, the first duration shorter than or equal to the soaking. The method further includes computing a plurality of features based on the first battery measurement data. The method further includes predicting, based on the plurality of features, a state of the battery after completion of the soaking. The method further includes outputting suitability of the quality of the battery based on the state of the battery as predicted.
-
Patent Agency Ranking
公开(公告)号：US11242915B1
公开(公告)日：2022-02-08
申请号：US17004801
申请日：2020-08-27
Applicant: GM Global Technology Operations LLC
Inventor： Chunhao J Lee , Farzad Samie , Chi-Kuan Kao , Norman K Bucknor
Abstract: A two-speed drive unit of an electric vehicle includes a planetary gear set transmission having multiple elements including a first element, a second element and a third element. A motor generator unit supplies a motive force to the planetary gear set transmission. A first stage gear transfers the motive force to the planetary gear set transmission from the motor generator unit. A second stage gear is connected through the second element to a final drive. A first torque transmitting device defining a selectable one-way clutch (SOWC) is connected to the third element.
-
公开(公告)号：US12282071B2
公开(公告)日：2025-04-22
申请号：US18172633
申请日：2023-02-22
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Yusheng Zou , Ibrahim Haskara , Bharatkumar Hegde , Chunhao J Lee
IPC: G01R31/392 , B60L58/16 , G01R31/3835 , G01R31/396 , H01M10/42
Abstract: A computer-implemented method for predicting a quality of a battery includes receiving a first battery measurement data for a first duration of soaking the battery, the first duration shorter than or equal to the soaking. The method further includes computing a plurality of features based on the first battery measurement data. The method further includes predicting, based on the plurality of features, a state of the battery after completion of the soaking. The method further includes outputting suitability of the quality of the battery based on the state of the battery as predicted.
-
公开(公告)号：US10337609B2
公开(公告)日：2019-07-02
申请号：US15289454
申请日：2016-10-10
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Chunhao J Lee , Dongxu Li , Farzad Samie , Chi-kuan Kao , Kumar V Hebbale
IPC: F16H61/70 , F16H61/662 , F16H9/18 , F16H59/50 , F16H61/12
Abstract: A continuously variable transmission, a transmission control system, and a method is provided. The control system is configured to determine whether a predetermined condition is met for applying a clutch critical pressure to an applied clutch. The clutch critical pressure is less than line pressure and is a pressure at which the clutch may slip upon experiencing a predetermined torque disturbance level. The control system is configured to command the clutch critical pressure to be applied to the clutch if the predetermined condition is met. The control system is further configured to determine whether the clutch is slipping beyond a predetermined threshold, and if the clutch is slipping beyond the predetermined threshold, command a clutch slip control scheme to be applied to the clutch that is configured to bring a clutch slip of the clutch under the predetermined threshold.
-
公开(公告)号：US10553043B2
公开(公告)日：2020-02-04
申请号：US15446595
申请日：2017-03-01
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Shiming Duan , Chunhao J Lee , Farzad Samie
Abstract: A method of predicting the health of and controlling a hydraulic pressure actuated torque converter lock-up clutch includes determining rotational input and output speeds of the torque converter. The method also includes determining a magnitude of the hydraulic pressure. The method additionally includes determining a level of performance of the clutch across multiple torque converter operating modes using the determined input and output torque converter speeds and the determined magnitude of the hydraulic pressure. The method also includes calculating a numeric state of health (SOH) coefficient of the clutch that quantifies a relative severity of degradation of a plurality of clutch characteristics across the multiple torque converter operating modes. Furthermore, the method includes executing a control action relative to the clutch when the calculated numeric SOH coefficient for specified torque converter operating mode(s) is less than a calibrated SOH threshold.
-
公开(公告)号：US20180253913A1
公开(公告)日：2018-09-06
申请号：US15446595
申请日：2017-03-01
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Shiming Duan , Chunhao J Lee , Farzad Samie
Abstract: A method of predicting the health of and controlling a hydraulic pressure actuated torque converter lock-up clutch includes determining rotational input and output speeds of the torque converter. The method also includes determining a magnitude of the hydraulic pressure. The method additionally includes determining a level of performance of the clutch across multiple torque converter operating modes using the determined input and output torque converter speeds and the determined magnitude of the hydraulic pressure. The method also includes calculating a numeric state of health (SOH) coefficient of the clutch that quantifies a relative severity of degradation of a plurality of clutch characteristics across the multiple torque converter operating modes. Furthermore, the method includes executing a control action relative to the clutch when the calculated numeric SOH coefficient for specified torque converter operating mode(s) is less than a calibrated SOH threshold.
-
-
-
-
-
Search Results
6
records
(took 0.015 seconds)
