公开(公告)号：US10948079B2

公开(公告)日：2021-03-16

申请号：US16052958

申请日：2018-08-02

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Shiming Duan ,  Chunhao J. Lee ,  Zhen Zhang ,  Peter P. Radecki ,  Xiaodong Jia

IPC: F16H61/14 ,  F16H61/12 ,  F16D48/06 ,  B60W10/02 ,  B60W10/10 ,  B60W30/18 ,  B60W50/14 ,  B60W10/06 ,  G07C5/08 ,  F16H45/02

Abstract: A method of, and a system for, controlling and predicting the health of a torque converter clutch control system is provided. The method includes determining, via a controller, rotational input and output speeds of the torque converter and a torque converter clutch slip. The method also includes determining, via the controller, whether a set of predetermined conditions are met for predicting the health of the torque converter clutch control system. The method includes gathering a plurality of initial features of the vehicle propulsion system, determining statistical information about the plurality of initial features, and selecting at least one feature of the vehicle propulsion system based on the statistical information. Furthermore, the method includes classifying the health of the torque converter clutch control system based on the selected feature or features. In some forms, principal component analysis is used to select the feature or features used for classification.

公开(公告)号：US20200256459A1

公开(公告)日：2020-08-13

申请号：US16272568

申请日：2019-02-11

Applicant: GM Global Technology Operations LLC

Inventor： Jose C. Zavala Jurado ,  Gionata Cimini ,  Bryan P. Jagielo ,  Zhen Zhang ,  Yue-Yun Wang ,  Harinath Atmaram

IPC: F16H61/14

Abstract: A control system to control slip of a torque converter clutch includes a clutch plant model configured to predict a value of a parameter that relates to torque converter clutch slip as a function of clutch plant model inputs comprising commanded clutch pressure and of torque from the torque generative device. The control system also includes a model predictive controller configured to receive signals that allow determination of a desired value of the parameter that relates to torque converter clutch slip and a predicted value of the parameter that relates to torque converter clutch slip, receive a signal representing reported torque of the torque generative device, identify an optimal commanded clutch pressure value that will result in an optimal value of an objective function based on the clutch plant model, and provide a command signal to an actuator effective to control commanded clutch pressure to the torque converter clutch.

公开(公告)号：US20200040988A1

公开(公告)日：2020-02-06

申请号：US16052958

申请日：2018-08-02

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Shiming Duan ,  Chunhao J. Lee ,  Zhen Zhang ,  Peter P. Radecki ,  Xiaodong Jia

IPC: F16H61/14 ,  F16H45/02 ,  F16D48/06 ,  B60W10/02 ,  B60W10/10 ,  B60W30/18 ,  B60W50/14 ,  B60W10/06 ,  G07C5/08

Abstract: A method of, and a system for, controlling and predicting the health of a torque converter clutch control system is provided. The method includes determining, via a controller, rotational input and output speeds of the torque converter and a torque converter clutch slip. The method also includes determining, via the controller, whether a set of predetermined conditions are met for predicting the health of the torque converter clutch control system. The method includes gathering a plurality of initial features of the vehicle propulsion system, determining statistical information about the plurality of initial features, and selecting at least one feature of the vehicle propulsion system based on the statistical information. Furthermore, the method includes classifying the health of the torque converter clutch control system based on the selected feature or features. In some forms, principal component analysis is used to select the feature or features used for classification.

公开(公告)号：US10859159B2

公开(公告)日：2020-12-08

申请号：US16272568

申请日：2019-02-11

Applicant: GM Global Technology Operations LLC

Inventor： Jose C. Zavala Jurado ,  Gionata Cimini ,  Bryan P. Jagielo ,  Zhen Zhang ,  Yue-Yun Wang ,  Harinath Atmaram

IPC: F16H61/14 ,  F16H59/14

Abstract: A control system to control slip of a torque converter clutch includes a clutch plant model configured to predict a value of a parameter that relates to torque converter clutch slip as a function of clutch plant model inputs comprising commanded clutch pressure and of torque from the torque generative device. The control system also includes a model predictive controller configured to receive signals that allow determination of a desired value of the parameter that relates to torque converter clutch slip and a predicted value of the parameter that relates to torque converter clutch slip, receive a signal representing reported torque of the torque generative device, identify an optimal commanded clutch pressure value that will result in an optimal value of an objective function based on the clutch plant model, and provide a command signal to an actuator effective to control commanded clutch pressure to the torque converter clutch.