公开(公告)号：US20230155400A1

公开(公告)日：2023-05-18

申请号：US17528727

申请日：2021-11-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Konking Wang ,  Emil Francu ,  Li-Pen J. Ho ,  Kevin J. Robinet

IPC: H02J7/00 ,  H02J7/14 ,  B60L50/64

CPC classification number: H02J7/00308 ,  H02J7/1423 ,  H02J7/0024 ,  B60L50/64 ,  B60L2240/547

Abstract: A protection system for a high-voltage component includes a switching circuit and a protection controller. The switching circuit changes a variable arrangement of multiple battery packs between a parallel arrangement and a series arrangement. The protection controller commands the switching circuit into the series arrangement in response to a recharging session, commands a current flow in the recharging session, measures a measured voltage between an input node and a floating chassis ground of the high-voltage component, advances a timer while the measured voltage indicates a presence of an improper voltage, and cancels the recharging session in response to the presence of the improper voltage for greater than an exposure time. The recharging session provides a direct-current fast-charging voltage to battery packs in the series arrangement, and is greater than the battery voltage.

公开(公告)号：US20180105158A1

公开(公告)日：2018-04-19

申请号：US15722357

申请日：2017-10-02

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Chandra S. Namuduri ,  Venkata Prasad Atluri ,  Suresh Gopalakrishnan ,  Jin-Woo Lee ,  Kevin J. Robinet ,  Sai Rajagopalan ,  Chen-fang Chang ,  Michael Livshiz ,  Patrick J. O'leary

IPC: B60W20/12 ,  B60W20/15 ,  B60W40/076 ,  B60W40/04

CPC classification number: B60W20/12 ,  B60W20/15 ,  B60W40/04 ,  B60W40/076 ,  B60W2550/20 ,  B60W2710/083 ,  Y02T10/6286

Abstract: A vehicle propulsion system includes a combustion engine configured to output a propulsion torque to satisfy a propulsion demand, and a traction electric machine to generate a supplemental torque to selectively supplement the propulsion torque. The propulsion system also includes a controller programmed to forecast an acceleration demand based on at least one estimation model. The controller is also programmed to issue a command indicative of a required axle torque corresponding to the acceleration demand. The controller is further programmed to engage at least one fuel conservation action in response to the required axle torque being within a first predetermined torque threshold range.

公开(公告)号：US10207699B2

公开(公告)日：2019-02-19

申请号：US15722357

申请日：2017-10-02

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Chandra S. Namuduri ,  Venkata Prasad Atluri ,  Suresh Gopalakrishnan ,  Jin-Woo Lee ,  Kevin J. Robinet ,  Sai Rajagopalan ,  Chen-fang Chang ,  Michael Livshiz ,  Patrick J. O'leary

IPC: B60W20/00 ,  B60W20/12 ,  B60W20/15 ,  B60W40/04 ,  B60W40/076

Abstract: A vehicle propulsion system includes a combustion engine configured to output a propulsion torque to satisfy a propulsion demand, and a traction electric machine to generate a supplemental torque to selectively supplement the propulsion torque. The propulsion system also includes a controller programmed to forecast an acceleration demand based on at least one estimation model. The controller is also programmed to issue a command indicative of a required axle torque corresponding to the acceleration demand. The controller is further programmed to engage at least one fuel conservation action in response to the required axle torque being within a first predetermined torque threshold range.

公开(公告)号：US11791641B2

公开(公告)日：2023-10-17

申请号：US17528727

申请日：2021-11-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Konking Wang ,  Emil Francu ,  Li-Pen J. Ho ,  Kevin J. Robinet

IPC: H02J7/00 ,  H02J7/14 ,  B60L50/64

CPC classification number: H02J7/00308 ,  B60L50/64 ,  H02J7/0024 ,  H02J7/1423 ,  B60L2240/547

Abstract: A protection system for a high-voltage component includes a switching circuit and a protection controller. The switching circuit changes a variable arrangement of multiple battery packs between a parallel arrangement and a series arrangement. The protection controller commands the switching circuit into the series arrangement in response to a recharging session, commands a current flow in the recharging session, measures a measured voltage between an input node and a floating chassis ground of the high-voltage component, advances a timer while the measured voltage indicates a presence of an improper voltage, and cancels the recharging session in response to the presence of the improper voltage for greater than an exposure time. The recharging session provides a direct-current fast-charging voltage to battery packs in the series arrangement, and is greater than the battery voltage.