公开(公告)号：US10030765B2

公开(公告)日：2018-07-24

申请号：US15077241

申请日：2016-03-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Ronald F. Lochocki, Jr. ,  Scott D. Biggs ,  Moussa Ndiaye ,  Patrick M. Gibson ,  Brian W. Hanselman

IPC: F16H61/12 ,  F16H61/686

Abstract: A vehicle includes a prime mover, transmission, drive axle, and controller. The controller identifies clutches involved in establishing or maintaining a requested gear state, and detects an impending fault condition of the transmission. The controller also executes a pre-remedial control action in response to the impending fault condition, and places the transmission in a hydraulic default mode when the remedial control action does not clear the fault condition after a calibrated duration. A system includes the transmission and controller. A method for providing pre-remedial control of a transmission includes identifying clutches of the transmission that are involved in establishing or maintaining a requested gear state, and detecting an impending fault condition. The method further includes executing a pre-remedial control action in response to the impending fault condition and placing the transmission in a hydraulic default mode if the remedial control action does not clear the fault condition.

公开(公告)号：US10408287B2

公开(公告)日：2019-09-10

申请号：US15590433

申请日：2017-05-09

Applicant: GM Global Technology Operations LLC

Inventor： Scott D. Biggs ,  Ronald F. Lochocki, Jr. ,  Brian W. Hanselman ,  Greg J. Perantoni

IPC: F16D48/06 ,  F16H61/12 ,  F16H61/16 ,  F16H59/68 ,  B60W10/113 ,  B60W10/115 ,  F16H61/684 ,  F16H61/06

Abstract: A clutch-to-clutch transmission monitoring system for an automobile vehicle includes a control software generating a control signal. A monitor is in communication with the control software. A pre-compute monitor is in communication with the control software. The pre-compute monitor also receives the input data and outputs an operating threshold signal to the control software. The operating threshold signal defines allowed operating bounds for at least one component in communication with the monitor. A post-compute monitor is in communication with both the control software and the pre-compute monitor. The post-compute monitor receives both the control signal and the operating threshold signal. The post-compute monitor compares the control signal to the operating threshold signal to identify if the control signal violates the allowed operating bounds defined by the pre-compute monitor.

公开(公告)号：US20180328421A1

公开(公告)日：2018-11-15

申请号：US15590433

申请日：2017-05-09

Applicant: GM Global Technology Operations LLC

Inventor： Scott D. Biggs ,  Ronald F. Lochocki, JR. ,  Brian W. Hanselman ,  Greg J. Perantoni

IPC: F16D48/06 ,  F16H61/12 ,  F16H61/16 ,  B60R16/023 ,  F16H61/04 ,  F16H59/68 ,  B60W10/113 ,  B60W10/115

CPC classification number: F16D48/062 ,  B60W10/113 ,  B60W10/115 ,  F16H59/68 ,  F16H61/12 ,  F16H61/16 ,  F16H61/684 ,  F16H2061/064 ,  F16H2061/1208 ,  F16H2061/1232

Abstract: A clutch-to-clutch transmission monitoring system for an automobile vehicle includes a control software generating a control signal. A monitor is in communication with the control software. A pre-compute monitor is in communication with the control software. The pre-compute monitor also receives the input data and outputs an operating threshold signal to the control software. The operating threshold signal defines allowed operating bounds for at least one component in communication with the monitor. A post-compute monitor is in communication with both the control software and the pre-compute monitor. The post-compute monitor receives both the control signal and the operating threshold signal. The post-compute monitor compares the control signal to the operating threshold signal to identify if the control signal violates the allowed operating bounds defined by the pre-compute monitor.

公开(公告)号：US20170276238A1

公开(公告)日：2017-09-28

申请号：US15077241

申请日：2016-03-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Ronald F. Lochocki, JR. ,  Scott D. Biggs ,  Moussa Ndiaye ,  Patrick M. Gibson ,  Brian W. Hanselman

IPC: F16H61/12

CPC classification number: F16H61/12 ,  F16H61/686 ,  F16H2061/1232

Abstract: A vehicle includes a prime mover, transmission, drive axle, and controller. The controller identifies clutches involved in establishing or maintaining a requested gear state, and detects an impending fault condition of the transmission. The controller also executes a pre-remedial control action in response to the impending fault condition, and places the transmission in a hydraulic default mode when the remedial control action does not clear the fault condition after a calibrated duration. A system includes the transmission and controller. A method for providing pre-remedial control of a transmission includes identifying clutches of the transmission that are involved in establishing or maintaining a requested gear state, and detecting an impending fault condition. The method further includes executing a pre-remedial control action in response to the impending fault condition and placing the transmission in a hydraulic default mode if the remedial control action does not clear the fault condition.