CN104737409A - 具有改进的电池容量节约的方法和设备 - Google Patents

具有改进的电池容量节约的方法和设备 Download PDF

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CN104737409A
CN104737409A CN201380053427.1A CN201380053427A CN104737409A CN 104737409 A CN104737409 A CN 104737409A CN 201380053427 A CN201380053427 A CN 201380053427A CN 104737409 A CN104737409 A CN 104737409A
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CN104737409B (zh
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詹姆士·C·鲁宾逊
迈克尔·G·汉利
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H02J7/00714—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery charging or discharging current
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/005—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting using a power saving mode
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • H02J7/0045—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction concerning the insertion or the connection of the batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Computer Networks & Wireless Communication (AREA)
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  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

公开了一种改进的电池节约容量设备和方法(300)。在其最简单的形式中，该方法(300)包括步骤：通过检测低于阈值的负载电流，来检测(310)断开状态；以及通过以下进入包括占空比测试周期的电池节能模式(320)：提供周期性测试信号；将电池断开连接第一时间间隔；与周期性测试信号同步地将电池重新连接第二间隔，以确定负载电流是否超过阈值。该方法(300)在电子设备断开或待机一延长时间周期时，能够减小漏电。该方法还能够通过降低电池严重放电的可能性，来延长保存寿命、并将损坏电池生命周期的可能性降低到最小。

Description

具有改进的电池容量节约的方法和设备
技术领域
本公开涉及具有改进的电池容量节约的方法和设备。
背景技术
电子设备通常改变为嵌入电池。如果电池被严重放电，则安装在这些设备中的电池的保存寿命可能会存在问题。当电池被严重放电时，会缩短电池的使用寿命和容量。
在本领域应该考虑解决这种潜在问题和其他类似问题的改进的方法和设备。
附图说明
为了描述能够获得本公开的上述和其他优点和特征的方式，通过参考在附图中图示的具体实施例，呈现了如上简要描述的本公开的更具体的描述。应该理解，这些附图仅示出本公开的典型实施例，而不应被认为是限定其范围，本公开将通过使用附图而更加具体且详细地描述和解释，其中：
图1是根据一个实施例的通信系统的示例性框图。
图2是根据一个实施例的电子设备的示例性框图。
图3是根据一个实施例的方法的示例性框图。
图4是根据一个实施例的示例图表，其中，沿垂直轴绘制放电电流，沿水平轴绘制时间，虚线示出阈值电流。
图5是涉及根据一个实施例的启动能量的示例图表，其中，沿垂直轴绘制放电电流，沿水平轴绘制时间，虚线示出阈值电流。
图6是涉及根据一个实施例的两秒周期的例子的示例图表，其中，沿垂直轴绘制放电电流，沿水平轴绘制时间，虚线示出阈值电流。
图7是涉及根据一个实施例的十秒周期的例子的示例图表，其中，沿垂直轴绘制放电电流，沿水平轴绘制时间，虚线示出阈值电流。
图8是涉及根据一个实施例的方法的示例性流程图。
具体实施方式
图1是根据一个实施例的系统100的示例性框图。系统100可包括网络110、终端120、和基站130。终端120可以是主机、电子设备或无线通信设备，例如无线电话、可穿戴设备、蜂窝电话、个人数字助手、寻呼机、个人计算机、平板计算机、选择性呼叫接收器、或能够通过包括无线网络的网络发送和接收通信信号的任何其他设备。网络110可以包括能够发送和接收例如无线信号的信号的任何类型的网络。例如，网络110可以包括无线电信网络、蜂窝电话网络、时分多址(TDMA)网络、码分多址(CDMA)网络、全球移动通信系统(GSM)、第三代(3G)网络、第四代(4G)网络、卫星通信网络、和其他类似的通信系统。更一般地，网络110可以包括广域网(WAN)、局域网(LAN)和/或个域网(PAN)。此外，网络110可以包括多于一个的网络，并且可以包括多个不同类型的网络。因此，网络110可以包括多个数据网络、多个电信网络、数据和电信网络的组合、以及能够发送和接收通信信号的其他类似的通信系统。在操作中，终端120可包括无线通信设备，其能够通过经由基站130发送和接收无线信号与网络110以及网络110中的其他设备通信，其也可以包括局域和/或个域接入点，如在此更加充分地详细描述。图中示出的终端120与全球定位系统(GPS)140卫星、全球导航卫星系统(GNSS)等通信，用于位置感测和确定。
图2是例如诸如无线通信设备的电子设备200的示例性框图，其被配置为具有诸如终端120中的能量存储设备、电池或模块205。无线通信设备200可包括壳体210、耦合到壳体210的控制器220、耦合到壳体210的音频输入和输出电路230、耦合到壳体210的显示器240、耦合到壳体210的收发器250、耦合到壳体210的用户界面260、耦合到壳体210的存储器270、耦合到壳体210和收发器250的天线280、以及耦合到控制器220的可移除用户模块285。
如图2所示，设备200还包括功率管理模块290，其包括检测器模块292和处理器294。检测器模块292能够通过识别小于某个阈值的放电电流来检测主机断开状态，如图4所示。此时，检测器模块292确定主机处于断开状态，并且将电池断开一时间段。在完成此时间间隔时，将电池重新连接第二周期，以搜索放电电流将超过阈值的通电序列。当出现这种情况时将产生通电序列，如在此更详细地描述。在一个实施例中，模块290能够位于控制器220内，能够位于存储器270内，能够位于能量存储设备205模块内，可以是自主模块，可以是软件，可以是硬件，或者可以是可用于由诸如设备200的主机一起使用的其他任何形式的模块。
显示器240可以是液晶显示器(LCD)、发光二极管(LED)显示器、等离子显示器、触摸屏显示器或用于显示信息的任何其他装置。收发器250可以包括发送器和/或接收器。音频输入和输出电路230可以包括麦克风、扬声器、换能器、或任何其他音频输入和输出电路。用户接口260可以包括键盘、按钮、触摸屏或触摸板、操纵杆、附加显示器、或用于提供用户和电子设备之间的接口的任何其他设备。存储器270可以包括随机存取存储器、只读存储器、光学存储器或能够耦合到无线通信设备的任何其他存储器。
改进的电池节约容量的方法的框图在图3中示出。在最简单的形式中，方法300包括步骤：通过检测低于阈值的负载电流来检测310断开状态；以及通过以下进入320包括占空比测试周期的电池节能模式；提供周期性测试信号，将电池断开连接第一时间间隔、以及与周期性测试信号同步地将电池重新连接第二间隔，以确定负载电流是否超过阈值。方法300能够在电子设备断开或待机一延长时间段时，减小漏电。该方法还可以通过降低电池严重放电的可能性，来延长保存寿命、并将损坏电池的生命周期的可能性降低到最小。
方法300可以包括：在负载电流超过阈值的情况下，退出电池节能模式。例如，当用户激活通电序列时，负载电流超过阈值且退出电池节能模式。在一个实施例中，作为电子设备被切换到断开状态或在预定时间段之后，能够发起进入电池节能模式的进入步骤320。换句话说，例如当激活功率按钮某个时间段以允许检测起动，并且使低功率功能失效和给主机通电时，能够启用恢复功能。
因此，在一种情况下，能够在发起电池节能模式之前提供延迟，从而用户不必按压接通按钮较长时间段。因此，在某个时间段之后门控能够提供更好的用户体验。例如，进入电池节能模式能够延迟至少一个小时，优选地是10个小时。
与进入步骤320相关地，第一间隔期间没有信号，第二间隔通常是半方波或选通脉冲，如在下文中详细描述。因此，在第一间隔期间，主机通过诸如FET的开路开关构造不连接到电池。并且，在第二间隔期间，主机经由处于闭合位置的开关连接到电池。
在优选实施例中，第二间隔的周期性测试信号在高峰时段之后被采样。在电池节能模式期间，此时采样允许信号调整到合适的水平。
在一个实施例中，第一间隔长于第二间隔的测试信号。在此实施例中，测试信号之间的断开或距离越长，功率节约越大。在优选实施例中，周期性测试信号包括频率范围，其足够低以有助于使漏电最小化，并且在退出能量节约模式时足够高以使时延最小化。
与进入步骤320相关地，占空比测试周期包括多个第一间隔和第二间隔，以在第二间隔期间确定负载电流是否超过阈值。
此外，与进入步骤320相关地，周期性测试信号包括在重新连接步骤期间在阈值以下的信号，以确定负载电流是否超过阈值。
并且，与进入步骤320相关地，阈值策略性地被选择为低于接通状态电流水平、且高于断开状态电流水平，如图4所示。
在另一实施例中，改进的电池节约容量设备200在图2中示出。设备200可以包括：电子设备200，电子设备200包括致动器202和电池205；控制器220，控制器220耦合到电子设备200，该控制器220被配置为控制电子设备的操作；和功率管理模块290，功率管理模块290被配置为通过检测在阈值以下的负载电流来检测断开状态、并且进入包括占空比测试周期的电池节能模式，该电池节能模式被配置为：提供周期性测试信号；断开电池第一时间间隔；与周期性测试信号同步地将电池重新连接第二间隔，以确定负载电流是否超过阈值。
在一个实施例中，例如，在主机的放电电流经由检测器模块292被检测为在阈值以下，对于某个时间段，处理器294能够进入包括选通的电池节能模式，该选通用于在检测到来自主机的恢复电流之前脉冲开和脉冲关，如图4所示。
与具有嵌入式电池的例如无线通信设备的电子设备相关地，电池保存寿命容量方面可能存在问题，并且可能损坏电池容量。有利地，当检测到主机处于从主机断开电池连接的断开状态时，提供测试信号或选通功能能够提高电池保存寿命和电池寿命。
功率管理模块290能够被配置为：一旦致动器202被致动到断开状态或当放电电流降到阈值以下时，就能够进入电池节能模式。例如通过使用检测器模块292，功率管理模块290也能够被配置为：在负载电流超过阈值的情况下，退出电池节能模式，如关于图4详细描述的。
在一种情况下，功率管理模块290能够被配置为：在致动器被置于断开状态之后的预定时间段之后，进入电池节能模式。此特征能够在发起电池节能模式之前提供延迟，使得用户不必按压接通按钮较长时间段或整个工作周期。例如，电池节能模式能够延迟至少一个小时，优选地是至少10个小时。
图4是示例图表400，其中，沿垂直轴绘制放电电流，沿水平轴绘制时间，虚线示出阈值电流。为了简化，省略了涌浪电流。如图4所示，电流信号402沿着时间绘制。信号402包括没有信号的第一间隔404(非脉冲部分)和可以采取方波形状的第二间隔406。信号402包括周期性测试信号412，其具有阈值414以下的幅度。在T1，主机被去激活。在T2，信号402减小、且为阈值。在T3，第一间隔404开始。在T4，第二间隔406开始。在418示出第二时段，其具有第一和第二间隔。在T5，主机被激活，在T6超过阈值414。一旦在T6超过阈值414，例如用户激活通电序列，则退出电池节能模式、且主机变得可操作。
在图4中，阈值414低于主机的接通状态420电流水平、且高于主机的断开状态422电流水平。
在一个实施例中，如图6所示，第二间隔606的周期性测试信号612在周期性测试信号612的高峰周期608之后被采样。这给信号提供时间变成平的水平610，以在阈值614以下稳定且准确采样。
在优选实施例中，第一间隔704(非脉冲部分)比第二间隔706的测试信号714部分长，如图7最佳所示的。
有利地，断开时间越长，功率消耗越低。
如图6最佳所示的，占空比测试周期616包括多个第一间隔604和包括信号链的第二间隔606。如在工程解决方案中通常发生的情况一样，经常不得不妥协。合适的时候，测试信号612越多，主机返回到接通状态越快。然而，在占空比616期间第一间隔604越长或测试信号612越少时，功率消耗越低，但当主机被激活时返回到接通状态越慢。换句话说，如图4－6所示，周期性测试信号612包括低于阈值614的信号幅度。在优选实施例中，阈值614低于主机的接通状态620电流水平、且高于主机的断开状态622电流水平。
比较例A
图5是涉及启动能量的示例图表，其中，沿垂直轴绘制放电电流，沿水平轴绘制时间，虚线示出阈值电流。参考图5，比较例A提供启动能量信息和基础线以进行比较。启动能量是断开到主机的功率的多长时间的函数，在此例子中主机是电话。使用Droid 3手机执行此测试。电池的待机电流，即电池FET接通而手机断开时的电流，为～155uA。观察到浪涌电流508为～330uS。对于10秒的占空比(1秒接通、9秒断开)，浪涌电流峰值在～2A。对于2秒的占空比(1秒接通、1秒断开)，浪涌电流峰值在约1.3A。
例1
图6是涉及两秒周期的例子的示例图表，其中，沿垂直轴绘制放电电流，沿水平轴绘制时间，虚线示出阈值电流。图表600示出了十秒占空比。
参考图6，例1提供了两秒周期的信息。在10秒周期中，1秒接通采样和1秒断开。浪涌能量＝1.3A*330us/2＝215uA-S。采样平衡＝155uA*0.99967＝155uA-S。一个脉冲的总量＝370ua-S。10秒周期内5次–10秒内1.85mA。每秒平均值＝185uA-S。
与比较例A中连续的155uA-S相比，这没有优势。
例2
图7是涉及十秒周期(占空比)的例子的示例图表，其中，沿垂直轴绘制放电电流，沿水平轴绘制时间，虚线示出阈值电流。
参考图7，例2提供了十秒周期的信息。在这个例子中，在10秒周期中执行1秒的采样时间。浪涌能量＝～2A*330us/2＝330uA-S。采样平衡＝155uA*0.99967＝155uA-S。一个脉冲的总量＝485uA-S。10秒周期内1次–10秒内485uA。每秒平均值＝48.5uA-S。与比较例A中连续的155uA-S相比，这有显著地提高。
参考图8，示出示例性流程图800。在805，开始低电流检测序列。在判定菱形810，问题是放电电流是否小于阈值。如果否，在框815，计时器复位，然后路径返回到开始低电流检测序列805。如果是，到达判定菱形820，问题是低电流计时器是否小于休息阈值。如果否，则在框825，递增计时器，然后路径返回到低电流检测序列805。如果是，在框830，接通诸如FET的开关，电源管理模块290进入电池节能模式。接下来，到达判定菱形835，问题是功率断开计时器是否期满。如果是，复位计时器815激活，然后路径返回到低电流检测序列805。如果否，路径再循环到判决菱形835。有利地，这种配置有助于提高电池的寿命，如之前详细描述的。
应该注意，如在此详细描述的，电源管理模块290和能量存储设备205可以集成在单独的模块中，并且可以很容易地连接到主机。
优选地，设备120和200以及方法300和800被实现在编程处理器上。然而，控制器、流程图、和模块也可以被实现在通用或专用的计算机、编程微处理器或微控制器和外围集成电路元件、集成电路，诸如离散元件电路的硬件电子电路或逻辑电路、可编程逻辑器件等上。一般来说，驻留能够实现附图所示的流程图的有限状态机的任何设备都可以用于实现本公开的处理器功能。
虽然已经利用具体实施例描述了本公开，但是显而易见地，许多替选、修改、和变体对于本领域技术人员来说是明显的。例如，实施例的各个部件可以互换、增加、或在其他实施例中替代。而且，每个图中的所有元件不是公开的实施例操作所必需的。例如，在所公开的实施例中，本领域普通技术人员能够通过简单地利用独立权利要求中的元件、来制造和使用本公开的教导。因此，在此所述的本公开的优选实施例旨在是说明性的，而不是限制性的。在不背离本发明的精神和范围下，可以进行各种改变。
在本文档中，诸如“第一”、“第二”等的关系术语可以仅用于区分一个实体或动作与另一个实体或动作，而不必要求或暗示这些实体或动作之间的任何实际的关系或顺序。术语“包括”或“包含”或任何其他变体旨在涵盖非排他性的包含，使得包括元件列表的过程、方法、物品、或装置不仅包括这些元件，而且可以包括未明确列出的或固有于这样的过程、方法、物品、或装置的其他元件。只要没有过多地限定，由“一”、“一个”等限定的元件不排除在包括该元件的过程、方法、物品、或装置中附加的相同元件的存在。而且，术语“另一个”被定义为至少第二或更多。如在此使用的术语“包括”、“具有”等被定义为“包括”。

Claims (20)

1.一种改进的电池节能方法，包括：
通过检测低于阈值的负载电流，来检测断开状态；以及
通过以下进入包括占空比测试周期的电池节能模式：
提供周期性测试信号；
将电池断开连接第一时间间隔；和
与所述周期性测试信号同步地将所述电池重新连接第二间隔，以确定所述负载电流是否超过所述阈值。
2.根据权利要求1所述的电池节能方法，还包括在所述负载电流超过所述阈值的情况下，退出所述电池节能模式。
3.根据权利要求1所述的电池节能方法，其中，作为电子设备被切换到所述断开状态的结果，发起所述电池节能模式的进入。
4.根据权利要求1所述的电池节能方法，其中，在预定时间段之后，发起所述电池节能模式的进入。
5.根据权利要求1所述的电池节能方法，其中，所述第一间隔期间没有信号，并且所述第二间隔期间通常是低于所述阈值的电流波形。
6.根据权利要求1所述的电池节能方法，其中，在浪涌时段之后采样所述第二间隔的所述周期性测试信号。
7.根据权利要求1所述的电池节能方法，其中，所述第一间隔比所述第二间隔的所述测试信号长。
8.根据权利要求1所述的电池节能方法，其中，所述周期性测试信号包括频率范围，所述频率范围足够低以有助于使漏电最小化，并且在退出所述能量节约模式时足够高以使时延最小化。
9.根据权利要求1所述的电池节能方法，其中，所述周期性测试信号包括低于所述阈值的信号。
10.根据权利要求1所述的电池节能方法，其中，所述阈值低于接通状态级电流水平、且高于断开状态电流水平。
11.一种改进的电池节能设备，包括：
电子设备，所述电子设备包括致动器和电池；
控制器，所述控制器耦合到所述电子设备，所述控制器被配置为控制所述电子设备的操作；以及
功率管理模块，所述功率管理模块被配置为通过检测低于阈值的负载电流来检测断开状态、并且进入包括占空比测试周期的电池节能模式，所述电池节能模式被配置为：提供周期性测试信号；断开电池连接第一时间间隔；以及与所述周期性测试信号同步地将所述电池重新连接第二间隔，以确定所述负载电流是否超过所述阈值。
12.根据权利要求11所述的改进的电池节能设备，其中，所述功率管理模块被配置为：在所述负载电流超过所述阈值的情况下，退出所述电池节能模式。
13.根据权利要求11所述的改进的电池节能设备，其中，所述功率管理模块被配置为：一旦所述致动器被致动到所述断开状态，就进入所述电池节能模式。
14.根据权利要求11所述的改进的电池节能设备，其中，所述功率管理模块被配置为：在所述致动器被置于所述断开状态之后的预定时间段之后，进入所述电池节能模式。
15.根据权利要求11所述的改进的电池节能设备，其中，所述第一间隔期间没有信号，并且所述第二间隔期间通常是低于所述阈值的电流波形。
16.根据权利要求11所述的改进的电池节能设备，其中，在浪涌时段之后采样所述第二间隔的所述周期性测试信号。
17.根据权利要求11所述的改进的电池节能设备，其中，所述第一间隔比所述第二间隔的所述测试信号长。
18.根据权利要求11所述的改进的电池节能设备，其中，所述周期性测试信号包括频率范围，所述频率范围足够低以有助于使漏电最小化，并且在退出所述能量节约模式时足够高以使时延最小化。
19.根据权利要求11所述的改进的电池节能设备，其中，所述周期性测试信号包括低于所述阈值的信号。
20.根据权利要求11所述的改进的电池节能设备，其中，所述阈值低于接通状态级电流水平、且高于断开状态电流水平。
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US20140068288A1 (en) 2014-03-06

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