公开(公告)号：US10160332B2

公开(公告)日：2018-12-25

申请号：US15220721

申请日：2016-07-27

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Konking Wang ,  Steven V. Wybo ,  Kris S. Sevel ,  Charles J. Swan

IPC: B60L11/18 ,  H02M1/32 ,  B60L11/02 ,  H02M3/335

Abstract: A topology for electric power distribution in a vehicle includes a high-voltage bus connected to a DC-DC electric power converter that is connected to a low-voltage DC load. The DC-DC electric power converter includes a high-voltage switching circuit, a transformer, and a low-voltage rectifier. The high-voltage switching circuit includes first and second switches arranged in series between positive and negative legs of the high-voltage electric power bus at a first node that connects to a leg of an inductor of the transformer. A controller receives a command to discharge the high-voltage electric power bus, and in response, controls a first gate circuit to operate a first switch in a linear mode, and controls a second gate circuit to operate a second switch in a pulsewidth-modulated mode. A duty cycle for the pulsewidth-modulated operation of the second switch is determined based upon the magnitude of electric current.

公开(公告)号：US20180029479A1

公开(公告)日：2018-02-01

申请号：US15220721

申请日：2016-07-27

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Konking Wang ,  Steven V. Wybo ,  Kris S. Sevel ,  Charles J. Swan

IPC: B60L11/02 ,  H02M3/335 ,  B60L11/18

CPC classification number: B60L11/02 ,  B60L11/1809 ,  H02M1/32 ,  H02M3/33507 ,  H02M3/33584 ,  H02M2001/322

Abstract: A topology for electric power distribution in a vehicle includes a high-voltage bus connected to a DC-DC electric power converter that is connected to a low-voltage DC load. The DC-DC electric power converter includes a high-voltage switching circuit, a transformer, and a low-voltage rectifier. The high-voltage switching circuit includes first and second switches arranged in series between positive and negative legs of the high-voltage electric power bus at a first node that connects to a leg of an inductor of the transformer. A controller receives a command to discharge the high-voltage electric power bus, and in response, controls a first gate circuit to operate a first switch in a linear mode, and controls a second gate circuit to operate a second switch in a pulsewidth-modulated mode. A duty cycle for the pulsewidth-modulated operation of the second switch is determined based upon the magnitude of electric current.

公开(公告)号：US09796326B2

公开(公告)日：2017-10-24

申请号：US14455065

申请日：2014-08-08

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Erik C. Nordstrom ,  Kris S. Sevel ,  Stephen M. Cichy ,  Ryan A. Church

IPC: G08B21/00 ,  B60Q1/46 ,  B60Q1/34

CPC classification number: B60Q1/46 ,  B60Q1/343

Abstract: A vehicle includes a plurality of lamps disposed on a rear portion of the vehicle, a user-actuatable hazard light control component (e.g. a turn-signal stalk) having a plurality of states, and a hazard lamp controller communicatively coupled to the plurality of lamps, the user-actuable hazard light control component, and the user-actuatable hazard light controller. The hazard lamp controller is configured to illuminate the plurality of lamps in accordance with a lighting pattern responsive to the state of the user-actuatable hazard light control component.

公开(公告)号：US09142955B2

公开(公告)日：2015-09-22

申请号：US13665809

申请日：2012-10-31

Applicant: GM Global Technology Operations LLC

Inventor： Kon-King M. Wang ,  William T. Ivan ,  Bryan M. Ludwig ,  Kris S. Sevel

IPC: H02H9/08 ,  H02P27/06 ,  B60K6/00 ,  H02M1/32

CPC classification number: H02H9/08 ,  B60K6/00 ,  H02M1/32 ,  H02P27/06 ,  Y02T10/62

Abstract: Systems and methods for a fault protection are provided that can be implemented in a hybrid electric vehicle (HEV) to limit the magnitude of a current that flows when an AC-to-chassis fault (ACF) occurs between an AC connection and the chassis of the HEV. An electric machine having a winding, an inverter sub-module (ISM) having a first switch and a second switch, and fault protection elements (FPEs), coupled to the ISM, are provided. The winding is coupled to the ISM coupled via the AC connection. The FPEs can include, for example, first and second inductances. To limit the magnitude of the current, the current can be passed along a first current path that includes the second inductance when the first switch is closed, and can be passed along a second current path that includes the first inductance when the second switch is closed.

Abstract translation: 提供了用于故障保护的系统和方法，其可以在混合电动车辆（HEV）中实现，以限制在AC连接和底盘之间发生AC到机箱故障（ACF）时流动的电流的大小 HEV。 提供具有绕组的电机，具有第一开关和第二开关的反相器子模块（ISM）以及耦合到ISM的故障保护元件（FPE）。 绕组耦合到通过AC连接耦合的ISM。 FPE可以包括例如第一和第二电感。 为了限制电流的大小，当第一开关闭合时，电流可以沿着包括第二电感的第一电流通路传递，并且当第二开关闭合时可以沿包括第一电感的第二电流通路通过电流 。