公开(公告)号：US20180031638A1

公开(公告)日：2018-02-01

申请号：US15220985

申请日：2016-07-27

Applicant: GM Global Technology Operations LLC

Inventor： SHUOQIN WANG ,  CHARLES W. WAMPLER ,  MARK W. VERBRUGGE ,  LUAN VU

IPC: G01R31/36

CPC classification number: G01R31/3651 ,  G01R31/3675

Abstract: A number of illustrative variations may include a method, which may include obtaining terminal voltage data of a electrochemical device; determining an equivalent circuit model which operates in a manner approximating the terminal voltage data comprising an open circuit voltage VOC comprising a constant voltage source V0 and a voltage Vs across a capacitor Cs, in series with an overpotential circuit comprising an overpotential voltage V1; determining at least one of the power capabilities of the equivalent circuit model; and, estimating at least one of the power capabilities of the electrochemical device based upon the determined power capabilities of the equivalent circuit model.

公开(公告)号：US20180059190A1

公开(公告)日：2018-03-01

申请号：US15246609

申请日：2016-08-25

Applicant: GM Global Technology Operations LLC

Inventor： MARK W. VERBRUGGE ,  Charles W. Wampler ,  Bob R. Powell, JR.

IPC: G01R31/36

CPC classification number: G01R31/396 ,  G01R31/367 ,  G01R31/3842 ,  G01R31/392 ,  G01R31/40

Abstract: A number of variations may include products and methods for estimating the state of an energy system. At least one sensor may monitor a voltage and a current of the energy storage system. An electronic controller may be communicatively coupled with the energy storage system and may receive input from the sensor. A circuit may be representative of the energy storage system and may be appropriately defined in the electronic controller. The circuit may estimate a state of the energy storage system from a reading of the voltage and the current.

公开(公告)号：US20150268307A1

公开(公告)日：2015-09-24

申请号：US14220675

申请日：2014-03-20

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： SUDHAKAR INGUVA ,  VIJAY P. SAHARAN ,  MARK W. VERBRUGGE

IPC: G01R31/36

CPC classification number: G01R31/3679 ,  B60L3/0046 ,  B60L11/1857 ,  B60L11/1861 ,  B60L11/1866 ,  B60L2240/545 ,  B60L2240/547 ,  B60L2240/549 ,  B60L2240/80 ,  B60L2260/44 ,  G01R31/3648 ,  G01R31/3651 ,  Y02T10/7005 ,  Y02T10/7044 ,  Y02T10/7061

Abstract: System and methods for determining performance degradation of a battery system are presented. In certain embodiments, the disclosed systems and methods may involve testing, monitoring, and/or modeling of battery system cyclic performance degradation at a single battery system operating temperature. The disclosed systems and methods may offer certain efficiencies over conventional techniques for determining cyclic degradation of a battery system. Such efficiencies may allow the disclosed systems and methods to be implemented in connection with real-time battery state estimation methods.

Abstract translation: 介绍了确定电池系统性能下降的系统和方法。 在某些实施例中，所公开的系统和方法可涉及在单个电池系统工作温度下对电池系统循环性能退化的测试，监测和/或建模。 所公开的系统和方法可以比用于确定电池系统的循环降级的常规技术提供一定的效率。 这样的效率可以允许所公开的系统和方法结合实时电池状态估计方法来实现。

公开(公告)号：US20180074128A1

公开(公告)日：2018-03-15

申请号：US15265101

申请日：2016-09-14

Applicant: GM Global Technology Operations LLC

Inventor： SHUOQIN WANG ,  MARK W. VERBRUGGE ,  CHARLES W. WAMPLER, II

IPC: G01R31/36 ,  G01R31/00 ,  G02B6/02

CPC classification number: G01R31/382 ,  G01R31/007 ,  G01R31/374 ,  G02B6/02076

Abstract: A number of variations may include a product comprising: at least one sensor comprising an optical fiber comprising a first end comprising a semiconductor material, a second end, and a longitudinal midsection comprising a grating, wherein the sensor is constructed and arranged to provide measurements that derive both state of charge and temperature of an electrochemical device simultaneously.