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公开(公告)号：US20210063270A1
公开(公告)日：2021-03-04
申请号：US16560361
申请日：2019-09-04
Applicant: GM Global Technology Operations LLC
Inventor： Min Sun , Jonathan M. Davis , Andrew M. Fedewa , Scott MI Wittkopp , Gionata Cimini
Abstract: A method of estimating the oxygen storage capacity of a catalyst includes providing an engine system having an internal combustion engine and an exhaust system having a catalyst and an oxygen sensor, providing a three-way catalyst observer model having a Kalman filter and a three-way catalyst kinetic model, estimating a three-way catalyst next time step state and a modeling error, linearizing the three-way catalyst observer model, filtering the estimated three-way catalyst next time step state, and calculating a covariance.
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公开(公告)号：US20240425028A1
公开(公告)日：2024-12-26
申请号：US18341173
申请日：2023-06-26
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Lei Hao , Yue-Yun Wang , Bojian Cao , Suresh Gopalakrishnan , Gionata Cimini
Abstract: Some embodiments disclosed herein are directed to constraint handling for parameters of electric motors. In particular, embodiments of the present disclosure relate to handling constraints for parameters such as current, voltage, and torque associated with an electric motor. Other embodiments may be disclosed or claimed.
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Patent Agency Ranking
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
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.
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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.
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公开(公告)号：US20180328294A1
公开(公告)日：2018-11-15
申请号：US15594176
申请日：2017-05-12
Applicant: GM Global Technology Operations LLC
Inventor： Stephen P. Levijoki , Bin Xu , Gionata Cimini
CPC classification number: F02D41/0002 , F02D11/10 , F02D11/105 , F02D41/1406 , F02D41/30 , F02D2041/1412 , F02D2041/1417 , F02D2041/1418 , F02D2041/1433 , G05B13/048
Abstract: A vehicle throttle control system includes a torque control system providing a desired torque for a throttle valve. A conversion module converts the desired torque to a desired throttle area and converts the desired throttle area to a target throttle position. A selection module determines which one of multiple MPC controllers should be used based on a current position of the throttle valve. A prediction module determines future state values using a mathematical model of a throttle body. A cost module determines a first cost for a first set of MPC target throttle duty cycle values. A control module identifies optimal sets of target throttle motor duty cycle values for each of the MPC controllers. The multiple MPC controllers control operation of a throttle valve duty cycle to achieve a target throttle opening area based on a first one of the target throttle motor duty cycle values.
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公开(公告)号：US11085848B2
公开(公告)日：2021-08-10
申请号：US16560361
申请日：2019-09-04
Applicant: GM Global Technology Operations LLC
Inventor： Min Sun , Jonathan M. Davis , Andrew M. Fedewa , Scott H. Wittkopp , Gionata Cimini
Abstract: A method of estimating the oxygen storage capacity of a catalyst includes providing an engine system having an internal combustion engine and an exhaust system having a catalyst and an oxygen sensor, providing a three-way catalyst observer model having a Kalman filter and a three-way catalyst kinetic model, estimating a three-way catalyst next time step state and a modeling error, linearizing the three-way catalyst observer model, filtering the estimated three-way catalyst next time step state, and calculating a covariance.
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公开(公告)号：US10287994B2
公开(公告)日：2019-05-14
申请号：US15594176
申请日：2017-05-12
Applicant: GM Global Technology Operations LLC
Inventor： Stephen P. Levijoki , Bin Xu , Gionata Cimini
Abstract: A vehicle throttle control system includes a torque control system providing a desired torque for a throttle valve. A conversion module converts the desired torque to a desired throttle area and converts the desired throttle area to a target throttle position. A selection module determines which one of multiple MPC controllers should be used based on a current position of the throttle valve. A prediction module determines future state values using a mathematical model of a throttle body. A cost module determines a first cost for a first set of MPC target throttle duty cycle values. A control module identifies optimal sets of target throttle motor duty cycle values for each of the MPC controllers. The multiple MPC controllers control operation of a throttle valve duty cycle to achieve a target throttle opening area based on a first one of the target throttle motor duty cycle values.
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