公开(公告)号：US20240039066A1

公开(公告)日：2024-02-01

申请号：US18379722

申请日：2023-10-13

Applicant: AVL Powertrain Engineering, Inc.

Inventor： Bruce Falls ,  Scott Kochan ,  Alwin Lutz ,  Brian Moran ,  Jeff Taberski

IPC: H01M10/48 ,  H01M10/42 ,  G01R31/392 ,  G01R19/22 ,  H02M3/335 ,  G01R31/3842

CPC classification number: H01M10/482 ,  H01M10/425 ,  G01R31/392 ,  G01R19/22 ,  H02M3/33576 ,  G01R31/3842 ,  H01M2220/20 ,  H01M2010/4271

Abstract: A cell management module for a power supply module including a plurality of power cells includes at least one cell-sensing circuit and a current measurement circuit connected to the at least one cell-sensing circuit. The at least one cell-sensing circuit includes a transformer having a first winding and a second winding inductively coupled to the first winding. A first sub-circuit of the cell-sensing circuit includes the first winding of the transformer and is operable to selectively pulse a first signal through the first winding. A second sub-circuit of the cell-sensing circuit includes the second winding of the transformer and one of the power cells of the power supply module. The current measurement circuit is connected to the first sub-circuit of the at least one cell-sensing circuit and infers a voltage of the power cell based on a measured current of the first signal.

公开(公告)号：US11843097B2

公开(公告)日：2023-12-12

申请号：US17016233

申请日：2020-09-09

Applicant: AVL Powertrain Engineering, Inc.

Inventor： Bruce Falls ,  Scott Kochan ,  Alwin Lutz ,  Brian Moran ,  Jeff Taberski

IPC: H01M10/48 ,  H01M10/42 ,  G01R31/392 ,  G01R19/22 ,  H02M3/335 ,  G01R31/3842

CPC classification number: H01M10/482 ,  G01R19/22 ,  G01R31/3842 ,  G01R31/392 ,  H01M10/425 ,  H02M3/33576 ,  H01M2010/4271 ,  H01M2220/20

Abstract: A cell management module for a power supply module including a plurality of power cells includes at least one cell-sensing circuit and a current measurement circuit connected to the at least one cell-sensing circuit. The at least one cell-sensing circuit includes a transformer having a first winding and a second winding inductively coupled to the first winding. A first sub-circuit of the cell-sensing circuit includes the first winding of the transformer and is operable to selectively pulse a first signal through the first winding. A second sub-circuit of the cell-sensing circuit includes the second winding of the transformer and one of the power cells of the power supply module. The current measurement circuit is connected to the first sub-circuit of the at least one cell-sensing circuit and infers a voltage of the power cell based on a measured current of the first signal.

公开(公告)号：US20210075070A1

公开(公告)日：2021-03-11

申请号：US17016233

申请日：2020-09-09

Applicant: AVL Powertrain Engineering, Inc.

Inventor： Bruce Falls ,  Scott Kochan ,  Alwin Lutz ,  Brian Moran ,  Jeff Taberski

IPC: H01M10/48 ,  H01M10/42 ,  G01R31/392 ,  G01R31/3842 ,  G01R19/22 ,  H02M3/335

Abstract: A cell management module for a power supply module including a plurality of power cells includes at least one cell-sensing circuit and a current measurement circuit connected to the at least one cell-sensing circuit. The at least one cell-sensing circuit includes a transformer having a first winding and a second winding inductively coupled to the first winding. A first sub-circuit of the cell-sensing circuit includes the first winding of the transformer and is operable to selectively pulse a first signal through the first winding. A second sub-circuit of the cell-sensing circuit includes the second winding of the transformer and one of the power cells of the power supply module. The current measurement circuit is connected to the first sub-circuit of the at least one cell-sensing circuit and infers a voltage of the power cell based on a measured current of the first signal.