公开(公告)号：US20170077854A1

公开(公告)日：2017-03-16

申请号：US14854171

申请日：2015-09-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yo Chan Son ,  Brian A. Welchko ,  Dwarakanath V. Simili ,  Mohammad Faizul Momen ,  Aayush Gupta ,  Chia-Chou Yeh

IPC: H02P21/00 ,  H02P27/08 ,  H02P6/10

CPC classification number: H02P6/10 ,  H02P21/22

Abstract: A multi-phase electric machine electrically connected to an inverter is described. A method for controlling the electric machine includes determining an initial current command responsive to a torque command for the electric machine and determining an expected torque ripple associated with operation of the electric machine. A mitigation current command is determined based upon the torque command and the expected torque ripple, and the electric machine is dynamically controlled responsive to the initial current command and the mitigation current command.

Abstract translation: 描述了电连接到逆变器的多相电机。 一种用于控制电机的方法包括：响应于电机的转矩指令确定初始电流指令，并确定与电机操作相关的预期转矩脉动。 根据转矩指令和预期的转矩波动来确定减轻电流指令，并且响应于初始电流指令和缓解电流指令动态控制电机。

公开(公告)号：US09800183B1

公开(公告)日：2017-10-24

申请号：US15157955

申请日：2016-05-18

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jianglin Wang ,  Bon Ho Bae ,  Chia-Chou Yeh

IPC: H02P1/04 ,  H02P27/04 ,  H02P6/08 ,  H02P21/22

CPC classification number: H02P6/08 ,  H02P21/0089 ,  H02P21/22

Abstract: An inverter electrically operatively connected to an electric machine and in communication with a controller is described. The inverter is electrically connected to a high-voltage DC power bus. A method for controlling the multi-phase inverter circuit includes monitoring, via the controller, a rotational speed of the electric machine during operation of the inverter in an over-modulation mode. The inverter is commanded to operate in a linear modulation mode when the rotational speed is within a speed range associated with objectionable audible noise generated by operating the electric machine in the over-modulation mode.

公开(公告)号：US09356551B2

公开(公告)日：2016-05-31

申请号：US13756455

申请日：2013-01-31

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Daniel J. Berry ,  Paul F. Turnbull ,  Chia-Chou Yeh

IPC: F04D15/02 ,  H02P31/00 ,  H02P29/00

CPC classification number: H02P31/00 ,  F04B2205/06 ,  F04B2205/10 ,  F04B2205/11 ,  H02P29/60

Abstract: An electric motor powers a fluidic pump fluidly connected to a hydraulic circuit. Operating the electric motor includes determining a heat transfer coefficient for the electric motor based upon a temperature of hydraulic fluid in the hydraulic circuit. A temperature of the electric motor is determined based upon the heat transfer coefficient. Operation of the electric motor is controlled based upon the temperature of the electric motor.

Abstract translation: 电动机驱动流体连接到液压回路的流体泵。 操作电动机包括基于液压回路中的液压流体的温度确定电动机的传热系数。 基于传热系数来确定电动机的温度。 基于电动机的温度来控制电动机的动作。