公开(公告)号：US10086718B2

公开(公告)日：2018-10-02

申请号：US14054710

申请日：2013-10-15

Applicant: Ford Global Technologies, LLC

Inventor： Xu Wang ,  Chuan He ,  Xiaoguang Chang

IPC: B60L11/18 ,  H01M10/48 ,  B60L1/00 ,  H01M10/617 ,  H01M10/625 ,  H01M10/44

Abstract: Systems and methods for operating a battery pack supplying power to propel a vehicle are disclosed. One example method comprises, determining a difference between an estimated battery pack temperature and a sensed battery pack temperature as a basis for adjusting battery pack output power. The method also includes adjusting a speed of a cooling fan based on the difference between estimated battery pack temperature and sensed battery pack temperature.

公开(公告)号：US09676288B2

公开(公告)日：2017-06-13

申请号：US14664343

申请日：2015-03-20

Applicant: Ford Global Technologies, LLC

Inventor： Xiaoguang Chang ,  Xu Wang ,  Szushen Ho ,  Chuan He

IPC: H01M10/46 ,  B60L11/18 ,  H02J7/00

CPC classification number: B60L11/1861 ,  B60L11/1838 ,  H02J7/0047 ,  H02J2007/005 ,  Y02T10/7005 ,  Y02T10/7022 ,  Y02T90/14

Abstract: A battery management system for a vehicle includes a controller programmed to apply a current pulse to reverse a current flow through a battery to reduce or remove cell polarization. After the current pulse, an open-circuit voltage is measured as the terminal voltage of the battery. The settling time for the terminal voltage to approach the open-circuit voltage is reduced after the current pulse. The magnitude of the current pulse is based on a battery state of charge, a battery temperature, and a current magnitude prior to the current pulse.

公开(公告)号：US20150276842A1

公开(公告)日：2015-10-01

申请号：US14224809

申请日：2014-03-25

Applicant: Ford Global Technologies, LLC

Inventor： Xiaoguang Chang ,  Chuan He ,  Xu Wang ,  Richard Dyche Anderson

IPC: G01R31/00 ,  G01R31/36 ,  G01R31/04

CPC classification number: G01R31/005 ,  G01R27/205 ,  G01R31/007 ,  G01R31/04 ,  G01R31/3644

Abstract: A diagnostic method for contact resistance failure includes estimating electrical contact surface resistance of at least one contactor, determining a faulted status of the at least one contactor and indicating the faulted status of the at least one contactor if the at least one contactor is in the faulted status.

Abstract translation: 用于接触电阻故障的诊断方法包括估计至少一个接触器的电接触表面电阻，确定所述至少一个接触器的故障状态并且如果所述至少一个接触器处于故障状态，则指示所述至少一个接触器的故障状态 状态。

公开(公告)号：US20150105948A1

公开(公告)日：2015-04-16

申请号：US14052649

申请日：2013-10-11

Applicant: Ford Global Technologies, LLC

Inventor： Xiaoguang Chang ,  Chuan He ,  Xu Wang

IPC: B60L11/18

CPC classification number: B60L11/1862 ,  B60L1/003 ,  B60L1/02 ,  B60L3/0046 ,  B60L3/102 ,  B60L7/12 ,  B60L11/126 ,  B60L11/1805 ,  B60L11/1857 ,  B60L11/187 ,  B60L11/1874 ,  B60L11/1875 ,  B60L11/1877 ,  B60L11/1879 ,  B60L15/20 ,  B60L15/2009 ,  B60L15/2018 ,  B60L2240/12 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/465 ,  B60L2240/545 ,  B60L2240/547 ,  B60L2240/642 ,  B60L2240/647 ,  B60L2240/80 ,  B60L2250/28 ,  B60L2260/56 ,  Y02T10/6217 ,  Y02T10/645 ,  Y02T10/7005 ,  Y02T10/7044 ,  Y02T10/705 ,  Y02T10/7077 ,  Y02T10/72 ,  Y02T10/7275 ,  Y02T10/7291 ,  Y02T90/16

Abstract: Systems and methods for operating a battery pack supplying power to propel a vehicle are disclosed. One example method includes, increasing a battery pack state of charge window in response to a negative grade of a section of road a vehicle is traveling. The method also includes decreasing the battery pack state of charge window in response to the vehicle transitioning from traveling down a section of road having a negative grade to traveling down a section of road that has a positive or zero grade.

Abstract translation: 公开了用于操作提供动力以推动车辆的电池组的系统和方法。 一个示例性方法包括：响应于车辆行驶的道路的一部分的负等级来增加电池组充电状态。 该方法还包括响应于车辆从具有负等级的道路的一段路线向下行驶到具有正或零档的道路的一段路线，从而减少电池组充电状态。

公开(公告)号：US20150063404A1

公开(公告)日：2015-03-05

申请号：US14010971

申请日：2013-08-27

Applicant: Ford Global Technologies, LLC

Inventor： Xiaoguang Chang ,  Xu Wang ,  Josephine S. Lee ,  Chuan He

IPC: G01M3/00

CPC classification number: G01M3/002 ,  B60L11/187 ,  H01M10/486 ,  H01M10/6565

Abstract: A method of detecting a leak in a battery pack according to an exemplary aspect of the present disclosure includes, among other things, calculating a predicted amount of thermal energy at a position, measuring an actual amount of thermal energy at the position, and comparing the predicted amount to the actual amount to identify if a battery pack is leaking.

Abstract translation: 根据本公开的示例性方面的检测电池组中的泄漏的方法包括：计算在位置处的预测的热能量，测量该位置处的实际热能量，并将 预计达到实际数量以确定电池组是否泄漏。

公开(公告)号：US10775438B2

公开(公告)日：2020-09-15

申请号：US16598334

申请日：2019-10-10

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Xu Wang ,  Xiaoguang Chang ,  Chuan He

IPC: G01R31/367 ,  G01R31/3835

Abstract: Lithium ion battery state of charge (SOC) is a function of open circuit voltage (OCV). Battery internal diffusion process needs to be nearly completed to be able to measure battery open circuit voltage. The length of the minimum settling time depends on the battery type, usage and temperature. Described are methods to determine electric vehicle battery voltage relaxation time based on battery temperature and usage history.

公开(公告)号：US20200049772A1

公开(公告)日：2020-02-13

申请号：US16598334

申请日：2019-10-10

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Xu Wang ,  Xiaoguang Chang ,  Chuan He

IPC: G01R31/367 ,  G01R31/3835

Abstract: Lithium ion battery state of charge (SOC) is a function of open circuit voltage (OCV). Battery internal diffusion process needs to be nearly completed to be able to measure battery open circuit voltage. The length of the minimum settling time depends on the battery type, usage and temperature. Described are methods to determine electric vehicle battery voltage relaxation time based on battery temperature and usage history.

公开(公告)号：US10481210B2

公开(公告)日：2019-11-19

申请号：US14330458

申请日：2014-07-14

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Xu Wang ,  Xiaoguang Chang ,  Chuan He

IPC: G01R31/367 ,  G01R31/3835

Abstract: Lithium ion battery state of charge (SOC) is a function of open circuit voltage (OCV). Battery internal diffusion process needs to be nearly completed to be able to measure battery open circuit voltage. The length of the minimum settling time depends on the battery type, usage and temperature. Described are methods to determine electric vehicle battery voltage relaxation time based on battery temperature and usage history.

公开(公告)号：US09676289B2

公开(公告)日：2017-06-13

申请号：US14052649

申请日：2013-10-11

Applicant: Ford Global Technologies, LLC

Inventor： Xiaoguang Chang ,  Chuan He ,  Xu Wang

IPC: B60L11/18 ,  B60L1/00 ,  B60L1/02 ,  B60L3/00 ,  B60L3/10 ,  B60L7/12 ,  B60L11/12 ,  B60L15/20

CPC classification number: B60L11/1862 ,  B60L1/003 ,  B60L1/02 ,  B60L3/0046 ,  B60L3/102 ,  B60L7/12 ,  B60L11/126 ,  B60L11/1805 ,  B60L11/1857 ,  B60L11/187 ,  B60L11/1874 ,  B60L11/1875 ,  B60L11/1877 ,  B60L11/1879 ,  B60L15/20 ,  B60L15/2009 ,  B60L15/2018 ,  B60L2240/12 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/465 ,  B60L2240/545 ,  B60L2240/547 ,  B60L2240/642 ,  B60L2240/647 ,  B60L2240/80 ,  B60L2250/28 ,  B60L2260/56 ,  Y02T10/6217 ,  Y02T10/645 ,  Y02T10/7005 ,  Y02T10/7044 ,  Y02T10/705 ,  Y02T10/7077 ,  Y02T10/72 ,  Y02T10/7275 ,  Y02T10/7291 ,  Y02T90/16

Abstract: Systems and methods for operating a battery pack supplying power to propel a vehicle are disclosed. One example method includes, increasing a battery pack state of charge window in response to a negative grade of a section of road a vehicle is traveling. The method also includes decreasing the battery pack state of charge window in response to the vehicle transitioning from traveling down a section of road having a negative grade to traveling down a section of road that has a positive or zero grade.

公开(公告)号：US09457686B2

公开(公告)日：2016-10-04

申请号：US14264554

申请日：2014-04-29

Applicant: Ford Global Technologies, LLC

Inventor： Xiaoguang Chang ,  Chuan He ,  Xu Wang

IPC: B60L9/00 ,  B60L11/18

CPC classification number: B60L11/1862 ,  B60L11/1857 ,  B60L11/1866 ,  B60L2240/545 ,  B60L2240/547 ,  B60L2240/549 ,  B60W10/00 ,  H02J7/1461 ,  H02J2007/0037 ,  H02J2007/004 ,  Y02T10/7011 ,  Y02T10/7016 ,  Y02T10/7044 ,  Y02T10/7061

Abstract: A hybrid-electric vehicle includes a traction battery. A controller may operate the traction battery within certain state of charge and voltage limits. The controller may define a minimum operating voltage or state of charge below which no power may be requested from the traction battery. The minimum voltage and state of charge may be based on an electrical resistance of the traction battery. The voltage may also be based on a minimum power level required to crank the engine while meeting emissions standards. As the battery ages, the minimum voltage level may be adjusted such that the minimum power level is available at the minimum voltage level.

Abstract translation: 混合电动车辆包括牵引电池。 控制器可以在一定的充电状态和电压限制内操作牵引电池。 控制器可以定义最小工作电压或充电状态，在该状态下，不能从牵引电池请求电力。 最小电压和充电状态可以基于牵引电池的电阻。 电压也可以基于在满足排放标准的情况下起动发动机所需的最小功率水平。 随着电池老化，可以调节最小电压电平，使得最小功率电平在最小电压电平下可用。