公开(公告)号：US09242576B1

公开(公告)日：2016-01-26

申请号：US14340642

申请日：2014-07-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Paul F. Turnbull ,  Steven L. Hayslett ,  Harry J. Bauer ,  Daniel J. Berry ,  George D. Dolan

IPC: H02P29/00 ,  B60L15/20

CPC classification number: B60L15/20 ,  B60L2240/423 ,  B60L2240/425 ,  H02P29/00 ,  H02P29/60 ,  Y02T10/7258

Abstract: A method for operating an electric machine of a ground vehicle includes periodically determining an aging parameter based upon a temperature of the electric machine and periodically determining a short-term aging effect based upon the periodically determined aging parameter. A long-term aging effect is determined based upon the short-term aging effect. A short-term temperature adjustment is determined based upon the short-term aging effect and a long-term temperature adjustment is determined based upon the long-term aging effect. A temperature-based derated motor torque is determined based upon the long-term temperature adjustment and the short-term temperature adjustment. Operation of the electric machine is controlled responsive to an operator command for torque based upon the temperature-based derated motor torque.

Abstract translation: 用于操作地面车辆的电机的方法包括基于电机的温度周期性地确定老化参数，并且基于周期性地确定的老化参数周期性地确定短期老化效应。 根据短期老化效应确定长期老化效应。 基于短期老化效应确定短期温度调整，长期温度调整是根据长期老化效应确定的。 基于温度降低的电动机转矩基于长期温度调节和短期温度调节来确定。 基于基于温度的降额电动机转矩，电动机的操作是根据操作者的转矩指令进行控制的。

公开(公告)号：US20160023573A1

公开(公告)日：2016-01-28

申请号：US14340642

申请日：2014-07-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Paul F. Turnbull ,  Steven L. Hayslett ,  Harry J. Bauer ,  Daniel J. Berry ,  George D. Dolan

IPC: B60L15/20

CPC classification number: B60L15/20 ,  B60L2240/423 ,  B60L2240/425 ,  H02P29/00 ,  H02P29/60 ,  Y02T10/7258

Abstract: A method for operating an electric machine of a ground vehicle includes periodically determining an aging parameter based upon a temperature of the electric machine and periodically determining a short-term aging effect based upon the periodically determined aging parameter. A long-term aging effect is determined based upon the short-term aging effect. A short-term temperature adjustment is determined based upon the short-term aging effect and a long-term temperature adjustment is determined based upon the long-term aging effect. A temperature-based derated motor torque is determined based upon the long-term temperature adjustment and the short-term temperature adjustment. Operation of the electric machine is controlled responsive to an operator command for torque based upon the temperature-based derated motor torque.

Abstract translation: 用于操作地面车辆的电机的方法包括基于电机的温度周期性地确定老化参数，并且基于周期性地确定的老化参数周期性地确定短期老化效应。 根据短期老化效应确定长期老化效应。 基于短期老化效应确定短期温度调整，长期温度调整是根据长期老化效应确定的。 基于温度降低的电动机转矩基于长期温度调节和短期温度调节来确定。 基于基于温度的降额电动机转矩，电动机的操作是根据操作者的转矩指令进行控制的。