公开(公告)号：US20170113695A1

公开(公告)日：2017-04-27

申请号：US14923593

申请日：2015-10-27

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Kee Yong Kim ,  Anthony H. Heap ,  Michael Andrew Miller ,  Luke D. Shepley ,  Michael Vincent Woon

IPC: B60W30/18 ,  B60W10/06 ,  B60T1/10 ,  B60W20/10 ,  F02D41/12 ,  B60K6/20 ,  B60W10/02 ,  B60W10/08

CPC classification number: B60W30/18127 ,  B60K6/20 ,  B60K6/48 ,  B60T1/10 ,  B60W10/026 ,  B60W10/06 ,  B60W10/08 ,  B60W20/10 ,  B60W30/18072 ,  B60W30/18136 ,  B60W2510/0638 ,  B60W2510/1015 ,  B60W2540/10 ,  B60W2540/12 ,  B60W2710/024 ,  B60Y2200/92 ,  B60Y2300/421 ,  B60Y2300/43 ,  B60Y2300/435 ,  B60Y2300/60 ,  B60Y2300/91 ,  F02D41/0087 ,  F02D41/123 ,  F02D2200/101 ,  F02D2200/1012 ,  F02D2200/501 ,  F02D2200/602 ,  F16D61/00 ,  Y02T10/6286 ,  Y10S903/93 ,  Y10T477/26 ,  Y10T477/6422 ,  Y10T477/735 ,  Y10T477/79

Abstract: A method for controlling a powertrain includes, in response to an output torque request that includes deceleration, operating an internal combustion engine in a fuel cutoff state and in a cylinder deactivation state, controlling a clutch of a torque converter in an activated state, and operating an electric machine in a regenerative braking state. A state of the powertrain related to engine speed is monitored. The internal combustion engine is commanded to transition from the cylinder deactivation state to an all-cylinder state and the electric machine operates in the regenerative braking state including ramping down magnitude of regenerative braking torque when the engine speed is less than a first threshold speed. The torque converter clutch is commanded to a released state when the engine speed is less than a second threshold speed, with the first threshold speed being greater than the second threshold speed.

公开(公告)号：US09669835B2

公开(公告)日：2017-06-06

申请号：US14923593

申请日：2015-10-27

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Kee Yong Kim ,  Anthony H. Heap ,  Michael Andrew Miller ,  Luke D. Shepley ,  Michael Vincent Woon

IPC: B60W10/08 ,  B60W30/18 ,  B60W10/02 ,  B60W10/06 ,  B60W20/10 ,  F02D41/12 ,  B60K6/20 ,  B60T1/10

CPC classification number: B60W30/18127 ,  B60K6/20 ,  B60K6/48 ,  B60T1/10 ,  B60W10/026 ,  B60W10/06 ,  B60W10/08 ,  B60W20/10 ,  B60W30/18072 ,  B60W30/18136 ,  B60W2510/0638 ,  B60W2510/1015 ,  B60W2540/10 ,  B60W2540/12 ,  B60W2710/024 ,  B60Y2200/92 ,  B60Y2300/421 ,  B60Y2300/43 ,  B60Y2300/435 ,  B60Y2300/60 ,  B60Y2300/91 ,  F02D41/0087 ,  F02D41/123 ,  F02D2200/101 ,  F02D2200/1012 ,  F02D2200/501 ,  F02D2200/602 ,  F16D61/00 ,  Y02T10/6286 ,  Y10S903/93 ,  Y10T477/26 ,  Y10T477/6422 ,  Y10T477/735 ,  Y10T477/79

Abstract: A method for controlling a powertrain includes, in response to an output torque request that includes deceleration, operating an internal combustion engine in a fuel cutoff state and in a cylinder deactivation state, controlling a clutch of a torque converter in an activated state, and operating an electric machine in a regenerative braking state. A state of the powertrain related to engine speed is monitored. The internal combustion engine is commanded to transition from the cylinder deactivation state to an all-cylinder state and the electric machine operates in the regenerative braking state including ramping down magnitude of regenerative braking torque when the engine speed is less than a first threshold speed. The torque converter clutch is commanded to a released state when the engine speed is less than a second threshold speed, with the first threshold speed being greater than the second threshold speed.