公开(公告)号：US09985452B2

公开(公告)日：2018-05-29

申请号：US15059961

申请日：2016-03-03

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Andrew J. Namou ,  Mohammad N. Anwar ,  Ahmad Albanna ,  Syed M. Kadry

IPC: H02J7/00

CPC classification number: H02J7/0065 ,  B60L11/1809 ,  H02J7/0029 ,  H02J7/0068 ,  H02J7/345 ,  H02J2007/0067

Abstract: A discharge circuit for a high-voltage bus that is electrically connected to a high-voltage DC power source is described. The discharge circuit includes a discharge switch electrically connected in series with a discharge resistor between positive and negative conductors of the high-voltage bus, and the discharge switch includes a gate. A bi-stable switch includes a control gate, an input line that is electrically connected to the high-voltage bus and an output line that is electrically connected to the gate of the discharge switch. A trigger device is in communication with the control gate of the bi-stable switch. The input line of the bi-stable switch is electrically connected to the high-voltage bus, and the discharge switch is controllable to a closed state to provide an electric current flow path through the discharge resistor between the positive and negative conductors of the high-voltage bus in response to an activation signal.

公开(公告)号：US20170256972A1

公开(公告)日：2017-09-07

申请号：US15059979

申请日：2016-03-03

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Andrew J. Namou ,  Mohammad N. Anwar ,  Ahmad Albanna ,  Syed M. Kadry

IPC: H02J7/00

CPC classification number: H02J7/0065 ,  B60L3/00 ,  B60L15/007 ,  B60L2240/526 ,  H02J7/0068 ,  H02J2007/0067 ,  H02M1/32 ,  H02M7/53875 ,  H02M2001/322

Abstract: A power inverter including a multi-phase inverter circuit is electrically connected to a high-voltage DC power source, and includes a capacitor electrically connected between positive and negative conductors of a high-voltage bus. A normally-ON discharge switch is electrically connected in series with a discharge resistor between the positive and negative conductors of the high-voltage bus. The discharge switch includes a control gate, wherein the control gate of the discharge switch is in communication with an ignition switch. The discharge switch is controllable to an open state between the positive and negative conductors of the high-voltage bus when the ignition switch is in an ON state. The discharge switch achieves a closed state to provide a low-impedance electric current flow path through the discharge resistor between the positive and negative conductors of the high-voltage bus when the ignition switch is in an OFF state.

公开(公告)号：US20170256971A1

公开(公告)日：2017-09-07

申请号：US15059961

申请日：2016-03-03

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Andrew J. Namou ,  Mohammad N. Anwar ,  Ahmad Albanna ,  Syed M. Kadry

IPC: H02J7/00

CPC classification number: H02J7/0065 ,  B60L11/1809 ,  H02J7/0029 ,  H02J7/0068 ,  H02J7/345 ,  H02J2007/0067

Abstract: A discharge circuit for a high-voltage bus that is electrically connected to a high-voltage DC power source is described. The discharge circuit includes a discharge switch electrically connected in series with a discharge resistor between positive and negative conductors of the high-voltage bus, and the discharge switch includes a gate. A bi-stable switch includes a control gate, an input line that is electrically connected to the high-voltage bus and an output line that is electrically connected to the gate of the discharge switch. A trigger device is in communication with the control gate of the bi-stable switch. The input line of the bi-stable switch is electrically connected to the high-voltage bus, and the discharge switch is controllable to a closed state to provide an electric current flow path through the discharge resistor between the positive and negative conductors of the high-voltage bus in response to an activation signal.

公开(公告)号：US20170036555A1

公开(公告)日：2017-02-09

申请号：US14818911

申请日：2015-08-05

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Ahmad Albanna ,  Md Nayeem Arafat ,  William T. Ivan ,  Mohammad N. Anwar ,  Mehrdad Teimorzadeh

IPC: B60L11/18

CPC classification number: B60L11/1812 ,  B60L11/1816 ,  H02M3/1582 ,  H02M2001/007

Abstract: An onboard charging module (OBCM), e.g., for a vehicle, is characterized by an absence of a transformer and includes an AC-to-DC voltage rectifier, DC-DC buck converter, DC-DC boost converter, DC link capacitor between the buck converter and boost converter, and solid-state devices. The devices include a diode and first and second switches having opposite open/closed switching states. The first and second switches are connected to a common rail of a DC bus, the first switch and diode are between the voltage rectifier and boost converter, and the second switch is between the link capacitor and buck converter. Third and fourth switches may be used on the opposite rail as the first and second switches. The OBCM is operable, via operation of the solid-state devices, to charge the HV-ESS via an AC power supply while maintaining current isolation. An electrical system includes the OBCM, DC bus, and HV-ESS.

Abstract translation: 车载充电模块（OBCM），例如用于车辆，其特征在于没有变压器，并且包括AC到DC电压整流器，DC-DC降压转换器，DC-DC升压转换器，DC链路电容器 降压转换器和升压转换器以及固态器件。 这些器件包括二极管和具有相反开/闭开关状态的第一和第二开关。 第一和第二开关连接到直流总线的共轨，第一开关和二极管位于电压整流器和升压转换器之间，第二开关位于链路电容器和降压转换器之间。 第三和第四开关可以在相对的导轨上用作第一和第二开关。 OBCM可通过固态设备的操作通过AC电源对HV-ESS充电，同时保持电流隔离。 电气系统包括OBCM，DC总线和HV-ESS。