公开(公告)号：US20220169237A1

公开(公告)日：2022-06-02

申请号：US17109342

申请日：2020-12-02

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yiran Hu ,  Brent S. Gagas ,  Kee Y. Kim ,  James S. Creehan ,  Brian A. Welchko ,  Patrick E. Frost

IPC: B60W20/15 ,  B60K1/00 ,  B60L15/20 ,  B60K26/02 ,  B60K1/04 ,  B60W30/182

Abstract: A method controls an electrified powertrain having an electric traction motor and a traction power inverter module (TPIM). A controller determines a current component capability and use case of the electrified powertrain. In response to the current component capability being less than a capability threshold and the use case matching a predetermined approved use case, the controller determines whether a predetermined margin exists in the component capability for operating the electrified powertrain in a maximum performance mode (MPM) for a full duration of a boosted driving maneuver. When the predetermined margin exists, the controller temporarily applies an extended inverter limit (EIL) of the TPIM to enable the MPM. The EIL allows operation of the traction motor to occur above default torque and speed operating limits for the full duration of the boosted driving maneuver. MPM/EIL availability is communicated to the operator.

公开(公告)号：US20240001905A1

公开(公告)日：2024-01-04

申请号：US17854689

申请日：2022-06-30

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Kee Y. Kim ,  Anthony H. Heap ,  Yiran Hu ,  Benjamin H. Daavettila

IPC: B60W10/30 ,  B60W10/08 ,  B60W10/06 ,  B60H1/02

CPC classification number: B60W10/30 ,  B60W10/08 ,  B60W10/06 ,  B60H1/02

Abstract: A method for heat coordination is provided. The method includes operating a propulsion system that generates heat as wasted power, operating a device utilizing the heat generated by the propulsion system, and operating a heat transfer system configured for transferring the heat generated by the propulsion system from the propulsion system to the device. The method further includes, within a computerized processor, determining a minimum useful waste thermal power to operate the device, monitoring a desired output torque for the propulsion system, and utilizing a cost-based determination to determine a propulsion system operating point based upon the desired output torque and the minimum useful waste thermal power to operate the device. The method further includes utilizing the propulsion system operating point to control the propulsion system.

公开(公告)号：US12214769B2

公开(公告)日：2025-02-04

申请号：US17854689

申请日：2022-06-30

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Kee Y. Kim ,  Anthony H. Heap ,  Yiran Hu ,  Benjamin H. Daavettila

IPC: B60H1/02 ,  B60W10/06 ,  B60W10/08 ,  B60W10/30 ,  F01N5/02

Abstract: A method for heat coordination is provided. The method includes operating a propulsion system that generates heat as wasted power, operating a device utilizing the heat generated by the propulsion system, and operating a heat transfer system configured for transferring the heat generated by the propulsion system from the propulsion system to the device. The method further includes, within a computerized processor, determining a minimum useful waste thermal power to operate the device, monitoring a desired output torque for the propulsion system, and utilizing a cost-based determination to determine a propulsion system operating point based upon the desired output torque and the minimum useful waste thermal power to operate the device. The method further includes utilizing the propulsion system operating point to control the propulsion system.

公开(公告)号：US20200377072A1

公开(公告)日：2020-12-03

申请号：US16423603

申请日：2019-05-28

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Kee Y. Kim ,  Anthony H. Heap ,  Michael A. Miller ,  Birendra P. Bhattarai ,  Joshua F. Pacheco

IPC: B60W20/00 ,  B60W30/18

Abstract: A powertrain system is described and includes an internal combustion engine that is coupled to an electric machine that is electrically connected to a DC power source, and a controller. The controller is operatively connected to the internal combustion engine and the electric machine, and is in communication with the vehicle and the DC power source. Control includes dynamically monitoring vehicle speed and a state of charge (SOC) of the DC power source, and transitioning to operating the electric machine in an alternator emulating mode when the SOC is less than a first SOC threshold. The first SOC threshold is determined based upon the vehicle speed. The DC power source is electrically connected to an on-vehicle auxiliary power system, which includes operating the electric machine in an electric power generating state to generate sufficient electric power to service the auxiliary power system.