公开(公告)号：US09975451B2

公开(公告)日：2018-05-22

申请号：US15130383

申请日：2016-04-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Luke D. Shepley ,  Joshua F. Pacheco ,  Krunal P. Patel ,  Anthony H. Heap ,  Michael Andrew Miller ,  Michael V. Woon

IPC: B60L9/00 ,  B60L15/20 ,  B60W20/14 ,  B60L7/14 ,  B60W50/00 ,  B60K6/485 ,  B60W10/08 ,  B60W20/00

CPC classification number: B60L15/2009 ,  B60K6/485 ,  B60L7/14 ,  B60L11/12 ,  B60L2240/423 ,  B60L2240/463 ,  B60L2240/486 ,  B60L2250/26 ,  B60W10/08 ,  B60W20/00 ,  B60W20/14 ,  B60W50/0097 ,  B60W2510/1005 ,  B60W2520/30 ,  B60W2540/14 ,  B60W2710/083 ,  Y02T10/6226 ,  Y02T10/7258 ,  Y10S903/947

Abstract: A powertrain system including an internal combustion engine, a transmission and an electric machine is described, and includes the electric machine rotatably coupled to a crankshaft of the internal combustion engine. The transmission is coupled to a driveline to transfer tractive torque and braking torque thereto. A method for controlling the electric machine includes determining a short-term axle torque capacity, a long-term axle torque capacity and a maximum regenerative braking stall torque capacity, and determining an operator request for braking. A preferred regenerative braking capacity is determined based upon the short-term axle torque capacity, the long-term regenerative braking capacity, the engine stall regenerative braking capacity and the operator request for braking. Torque output from the electric machine is controlled based upon the preferred regenerative braking capacity.

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.

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：US20160362020A1

公开(公告)日：2016-12-15

申请号：US15130383

申请日：2016-04-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Luke D. Shepley ,  Joshua F. Pacheco ,  Krunal P. Patel ,  Anthony H. Heap ,  Michael Andrew Miller ,  Michael V. Woon

IPC: B60L15/20 ,  B60L7/14 ,  B60W20/14

CPC classification number: B60L15/2009 ,  B60K6/485 ,  B60L7/14 ,  B60L11/12 ,  B60L2240/423 ,  B60L2240/463 ,  B60L2240/486 ,  B60L2250/26 ,  B60W10/08 ,  B60W20/00 ,  B60W20/14 ,  B60W50/0097 ,  B60W2510/1005 ,  B60W2520/30 ,  B60W2540/14 ,  B60W2710/083 ,  Y02T10/6226 ,  Y02T10/7258 ,  Y10S903/947

Abstract: A powertrain system including an internal combustion engine, a transmission and an electric machine is described, and includes the electric machine rotatably coupled to a crankshaft of the internal combustion engine. The transmission is coupled to a driveline to transfer tractive torque and braking torque thereto. A method for controlling the electric machine includes determining a short-term axle torque capacity, a long-term axle torque capacity and a maximum regenerative braking stall torque capacity, and determining an operator request for braking. A preferred regenerative braking capacity is determined based upon the short-term axle torque capacity, the long-term regenerative braking capacity, the engine stall regenerative braking capacity and the operator request for braking. Torque output from the electric machine is controlled based upon the preferred regenerative braking capacity.

Abstract translation: 描述了包括内燃机，变速器和电机的动力系统，并且包括可旋转地联接到内燃机的曲轴的电机。 变速器联接到传动系统以将牵引力矩和制动力传递到其上。 一种用于控制电机的方法包括确定短期轴转矩容量，长期轴转矩容量和最大再生制动失速转矩容量，以及确定操作者对制动器的要求。 优选的再生制动能力基于短期轴转矩容量，长期再生制动能力，发动机失速再生制动能力和操作者制动器要求来确定。 基于优选的再生制动能力来控制来自电机的扭矩输出。