公开(公告)号：US09594121B2

公开(公告)日：2017-03-14

申请号：US14245685

申请日：2014-04-04

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Patrick Frost ,  Patricia M. Laskowsky ,  Kurt M. Johnson

IPC: G01R31/36

CPC classification number: G01R31/362 ,  G01R31/3658

Abstract: System and methods for estimating a capacity of a battery are presented. A measure of data skewness may be calculated from a battery system terminal voltage measurement. Inflection points in the data skewness of the terminal voltage measurement may align with transition points associated with a battery system. These transitions points may be associated with known SOCs determined from testing and/or characterization of the battery system. Using the detected transitions and associated SOCs and an indication of an accumulated charge provided to/from the battery between the transitions, an estimated capacity of the battery system may be determined.

Abstract translation: 介绍了用于估计电池容量的系统和方法。 可以从电池系统端子电压测量来计算数据偏度的度量。 端子电压测量的数据偏差中的变化点可以与与电池系统相关联的过渡点对准。 这些转换点可以与从电池系统的测试和/或表征确定的已知SOC相关联。 使用检测到的转变和相关的SOC以及在转换之间提供给/从电池的累积电荷的指示，可以确定电池系统的估计容量。

公开(公告)号：US09535129B2

公开(公告)日：2017-01-03

申请号：US14307192

申请日：2014-06-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Kurt M. Johnson ,  Patrick Frost ,  Joon Hwang ,  Damon R. Frisch

IPC: H02J7/00 ,  G01R31/36

CPC classification number: G01R31/36 ,  G01R31/361 ,  G01R31/3689 ,  Y02T10/7005

Abstract: System and methods for estimating a capacity of a battery are presented. In certain embodiments, charge and discharge current throughput data may be separately accumulated during operation of a battery system (e.g., during a charge sustaining operation of vehicle associated with the battery system). Charge and discharge voltage-based state of charge movement data may be further separately accumulated. Upon accumulating sufficient data, estimated charge and discharge battery capacities may be determined based on the accumulated data.

Abstract translation: 介绍了用于估计电池容量的系统和方法。 在某些实施例中，在电池系统的操作期间（例如，在与电池系统相关联的车辆的充电维持操作期间），充电和放电电流吞吐量数据可以单独地累积。 可以进一步分别累积基于充电和放电电压的充电状态的运动数据。 在累积足够的数据时，可以基于累积数据来确定估计的充电和放电电池容量。

公开(公告)号：US09419314B2

公开(公告)日：2016-08-16

申请号：US14275553

申请日：2014-05-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Brian J. Koch ,  Brett B. Stawinski ,  Patrick Frost ,  Damon R. Frisch ,  John E. Novak

IPC: B60L15/20 ,  H01M10/48 ,  B60L11/18 ,  G01R21/14 ,  G01R31/36

CPC classification number: H01M10/48 ,  B60L11/1851 ,  B60L15/20 ,  B60L15/2009 ,  G01R21/14 ,  G01R31/36 ,  G01R31/361 ,  G01R31/3648 ,  G01R31/3693 ,  H01M10/425 ,  H01M10/482 ,  H01M2010/4278 ,  H01M2220/20 ,  Y02T10/7005 ,  Y02T10/7258 ,  Y02T10/7275

Abstract: System and methods for determining battery system power capability in a vehicle are presented. Peak power capability estimation systems and methods disclosed herein may compensate regressed parameters in a battery system circuit model for an effect of current magnitude. Utilizing the disclosed methods for accurately estimating peak power capability of a battery system may provide for, among other things, improved battery system performance modeling and/or improved battery system control and management decisions.

Abstract translation: 提出了确定车辆电池系统功率能力的系统和方法。 本文公开的峰值功率能力估计系统和方法可以补偿电池系统电路模型中的回归参数，用于电流幅度的影响。 利用所公开的用于精确估计电池系统的峰值功率能力的方法可以提供改进的电池系统性能建模和/或改进的电池系统控制和管理决定。

公开(公告)号：US09267995B2

公开(公告)日：2016-02-23

申请号：US13717958

申请日：2012-12-18

Applicant: GM Global Technology Operations LLC

Inventor： Kurt M. Johnson ,  Brett B. Stawinski ,  Brian J. Koch ,  Damon R. Frisch ,  Patrick Frost

IPC: G01R31/36

CPC classification number: G01R31/362 ,  G01R31/3648

Abstract: Systems and methods for improvements in battery state of charge accuracy, charge termination consistency, capacity estimation, and energy delivery consistency. More specifically, embodiments herein detail systems and methods using an algorithm to calculate the change in state of charge for a given voltage change (dSOC/dV) at a given temperature in a region around the present voltage measurement or estimation and to set a signal indicating when the measurement should not be used due to potential error.

Abstract translation: 电池充电精度，充电终端一致性，容量估计和能量传输一致性的改进的系统和方法。 更具体地，本文的实施例详细描述了使用算法计算在当前电压测量或估计周围的区域中给定温度下的给定电压变化（dSOC / dV）的电荷状态变化的系统和方法，并且设置指示 当由于潜在的错误而不应使用测量时。

公开(公告)号：US20140278167A1

公开(公告)日：2014-09-18

申请号：US13795813

申请日：2013-03-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Patrick Frost ,  Brian J. Koch ,  Damon R. Frisch ,  Brett B. Stawinski ,  Patricia M. Laskowsky ,  Kurt M. Johnson ,  Robert C. Baraszu

IPC: G01R31/36

CPC classification number: G01R31/3606 ,  B60L3/0038 ,  B60L3/0046 ,  B60L11/005 ,  B60L11/1857 ,  B60L11/1861 ,  B60L2240/545 ,  B60L2240/547 ,  B60L2240/549 ,  B60L2240/80 ,  G01R31/3624 ,  G01R31/3644 ,  G01R31/3651 ,  H01M10/486 ,  Y02T10/7005 ,  Y02T10/7022 ,  Y02T10/7044 ,  Y02T10/705

Abstract: Adaptive estimation techniques to create a battery state estimator to estimate power capabilities of the battery pack in a vehicle. The estimator adaptively updates circuit model parameters used to calculate the voltage states of the ECM of a battery pack. The adaptive estimation techniques may also be used to calculate a solid-state diffusion voltage effects within the battery pack. The adaptive estimator is used to increase robustness of the calculation to sensor noise, modeling error, and battery pack degradation.

Abstract translation: 自适应估计技术来创建电池状态估计器以估计车辆中的电池组的功率能力。 估计器自适应地更新用于计算电池组的ECM的电压状态的电路模型参数。 也可以使用自适应估计技术来计算电池组内的固态扩散电压效应。 自适应估计器用于增加计算对传感器噪声，建模误差和电池组退化的鲁棒性。