公开(公告)号：US10978885B2

公开(公告)日：2021-04-13

申请号：US15880258

申请日：2018-01-25

Applicant: Maxwell Technologies, Inc.

Inventor： Rong Yan ,  Ulf Carl Mikael Setterberg ,  Liesel Mathew Chiriyankandath ,  Christopher James ,  Magnus Lindbäck ,  Robert Shaw Lynds

IPC: H02J7/00

Abstract: In one aspect, the invention comprises an apparatus for balancing cells in a series string of modules having cells. The apparatus comprises a processing system and a communication circuit. The processing circuit is configured to receive an average cell voltage value from each module. The processing circuit is further configured to determine an overall average cell voltage for all the cells. The processing circuit is also configured to cause each the modules to determine a relative capacitance for each of its cells and cause each of the modules to balance its cells based on the respective relative capacitances. The communication circuit is configured to receive the average cell voltage value from the modules.

公开(公告)号：US20180337431A1

公开(公告)日：2018-11-22

申请号：US15984264

申请日：2018-05-18

Applicant: Maxwell Technologies, Inc.

Inventor： Christopher James

IPC: H01M10/42 ,  H01M10/48 ,  H01G9/00

CPC classification number: H02J7/0029 ,  B60L3/0046 ,  B60L11/1864 ,  G01R31/3606 ,  H01M10/4257 ,  H01M10/482 ,  H02J7/0021

Abstract: One innovative aspect of the subject matter described herein comprises an energy storage module that comprises one or more energy storage cells, one or more sensor circuits, a network interface, and a first safety circuit. The sensor circuits detect a condition of the energy storage module indicative of a malfunction. The first safety circuit monitors the sensor circuits for detection of the condition indicative of a malfunction. The first safety circuit receives a pulsed signal. When the one or more sensor circuits detect the condition indicative of a malfunction, the first safety circuit interrupts the pulsed signal being conveyed. When the one or more sensor circuits does not detect the condition indicative of a malfunction, the first safety circuit conveys the pulsed signal. A unique network identifier of the network interface is determined based on an arbitration method using said network interface in conjunction with the first safety circuit.

公开(公告)号：US20180212442A1

公开(公告)日：2018-07-26

申请号：US15880258

申请日：2018-01-25

Applicant: Maxwell Technologies, Inc.

Inventor： Rong Yan ,  Ulf Carl Mikael Setterberg ,  Liesel Mathew Chiriyankandath ,  Christopher James ,  Magnus Lindbäck ,  Robert Shaw Lynds

IPC: H02J7/00

CPC classification number: H02J7/0016 ,  H02J7/0014

Abstract: In one aspect, the invention comprises an apparatus for balancing cells in a series string of modules having cells. The apparatus comprises a processing system and a communication circuit. The processing circuit is configured to receive an average cell voltage value from each module. The processing circuit is further configured to determine an overall average cell voltage for all the cells. The processing circuit is also configured to cause each the modules to determine a relative capacitance for each of its cells and cause each of the modules to balance its cells based on the respective relative capacitances. The communication circuit is configured to receive the average cell voltage value from the modules.