WO2016183802A1 - 一种充电方法、充电装置和终端 - Google Patents

一种充电方法、充电装置和终端 Download PDF

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Publication number
WO2016183802A1
WO2016183802A1 PCT/CN2015/079281 CN2015079281W WO2016183802A1 WO 2016183802 A1 WO2016183802 A1 WO 2016183802A1 CN 2015079281 W CN2015079281 W CN 2015079281W WO 2016183802 A1 WO2016183802 A1 WO 2016183802A1
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Prior art keywords
charging
voltage value
line
charging current
current
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PCT/CN2015/079281
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English (en)
French (fr)
Inventor
孙文涌
胡军
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华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to RU2017135381A priority Critical patent/RU2678776C1/ru
Priority to KR1020177029515A priority patent/KR102200981B1/ko
Priority to US15/568,426 priority patent/US20180109118A1/en
Priority to PCT/CN2015/079281 priority patent/WO2016183802A1/zh
Priority to EP15892181.7A priority patent/EP3264565B1/en
Priority to JP2017548950A priority patent/JP6490833B2/ja
Priority to CN201580029336.3A priority patent/CN106415983B/zh
Publication of WO2016183802A1 publication Critical patent/WO2016183802A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M19/00Current supply arrangements for telephone systems
    • H04M19/08Current supply arrangements for telephone systems with current supply sources at the substations
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H02J7/04Regulation of charging current or voltage

Definitions

  • Embodiments of the present invention relate to the field of information technology, and in particular, to a charging method, a charging device, and a terminal.
  • USB Universal Serial Bus
  • the charging current set by the phone is too large, exceeding the rated current of the adapter, which will cause the adapter to generate overcurrent protection and cannot be charged.
  • the on-line partial voltage is too large, and the voltage reaching the mobile terminal is too low, which may cause problems such as slow charging or even charging.
  • the invention provides a charging method, a charging device and a terminal, so that the terminal can adapt different charging devices and improve the charging experience of the user.
  • a first aspect of the present invention provides a charging method, the method comprising: detecting that a charging device is inserted into a charging interface of a terminal through a charging line, identifying a first voltage value of the charging interface; setting a second charging current; a second voltage value of the charging interface under the second charging current; calculating a line impedance of the charging line according to the first voltage value, the second charging current, and the second voltage value; The line impedance of the charging line adjusts the appropriate charging current of the charging device.
  • a second possible implementation manner of the first aspect when the line impedance of the charging line is greater than a preset impedance value, the user is alerted.
  • Adjusting the appropriate charging current of the charging device according to the line impedance of the charging line includes: adjusting a third charging current to be a fourth charging current; and identifying a fourth voltage value of the charging interface under the fourth charging current; Calculating an output voltage value of the charging device according to a rated voltage value of the charging device, the fourth charging current, and a line impedance of the charging line; if the fourth voltage value is smaller than an output voltage value of the charging device, Then the third charging current is a suitable charging current of the charging device.
  • a second aspect of the present invention provides a charging apparatus, the apparatus comprising: a first identifying unit, configured to detect that a charging device is inserted into a charging interface of a terminal through a charging line, and identify a first voltage value of the charging interface; a second identification unit, configured to identify a second voltage value of the charging interface at the second charging current; a first calculating unit, configured to determine, according to the first voltage value, Calculating, by the second charging current and the second voltage value, a line impedance of the charging line; and a first adjusting unit, configured to adjust a suitable charging current of the charging device according to a line impedance of the charging line.
  • the device further includes a reminding unit, when the line impedance of the charging line is greater than a preset impedance value , to alert the user.
  • the first adjusting unit includes: a second adjusting unit, configured to adjust a third charging current to be a fourth charging current; and a third identifying unit, configured to identify a fourth voltage of the charging interface under the fourth charging current a second calculation unit, configured to calculate an output voltage value of the charging device according to a rated voltage value of the charging device, the fourth charging current, and a line impedance of the charging line; and a determining unit, configured to: The fourth voltage value is less than the output voltage value of the charging device, and the third charging current is a suitable charging current of the charging device.
  • a third aspect of the present invention provides a terminal, the terminal comprising: one or more processors; a memory; one or more programs; wherein the one or more programs are stored in the memory and configured To be executed by the one or more processors, the one or more programs include instructions for detecting that the charging device is plugged into the charging interface of the terminal through the charging line, identifying the first voltage of the charging interface Setting a second charging current; identifying a second voltage value of the charging interface at the second charging current; calculating according to the first voltage value, the second charging current, and the second voltage value a line impedance of the charging line; adjusting a suitable charging current of the charging device according to a line impedance of the charging line.
  • a second possible implementation manner of the third aspect when the line impedance of the charging line is greater than a preset impedance value, the user is alerted.
  • Adjusting the appropriate charging current of the charging device according to the line impedance of the charging line includes: adjusting a third charging current to be a fourth charging current; and identifying a fourth voltage value of the charging interface under the fourth charging current; Calculating an output voltage value of the charging device according to a rated voltage value of the charging device, the fourth charging current, and a line impedance of the charging line; if the fourth voltage value is smaller than the charging device The output voltage value is set, and the third charging current is a suitable charging current of the charging device.
  • a fourth aspect of the present invention provides a terminal, comprising: one or more processors; a memory; and one or more programs, wherein the one or more programs are stored in the memory and configured To be executed by the one or more processors, the one or more programs comprising the implementations of any of the first aspect to the fourth possible implementation of the first aspect, Method of instruction.
  • a fifth aspect of the present invention provides a computer readable storage medium storing one or more programs, the one or more programs including instructions that, when executed by the terminal, cause the terminal to perform according to the first Aspects to any of the possible implementations of the fourth possible implementation of the first aspect.
  • the present invention provides a charging method, a charging device, a terminal, and a computer readable storage medium, and identifies a first voltage value of the charging interface by detecting that the charging device is inserted into a charging interface of the terminal through a charging line; Setting a second charging current; identifying a second voltage value of the charging interface at the second charging current; calculating a line impedance of the charging line according to the first voltage value, the second charging current, and the second voltage value; Adjusting the appropriate charging current of the charging device according to the line impedance of the charging line, so that the terminal can adapt to different charging devices and improve the charging experience of the user.
  • FIG. 1 is a schematic diagram of a charging device charging a terminal
  • FIG. 2 is a schematic diagram of a charging method according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a method for adjusting a charging current according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a terminal according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a first adjusting unit according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram of still another terminal according to an embodiment of the present invention.
  • the terminal in the embodiment of the present invention may include a mobile phone, a tablet computer, an MP3 player, a wearable device such as a smart watch, and the like.
  • the charging current set by the terminal such as the mobile phone is relatively large, exceeding the rated current of the adapter, which causes the charging device to generate overcurrent protection and cannot be charged.
  • a poor quality charging cable such as a USB cable
  • the voltage on the line is too large, and the voltage reaching the mobile terminal is too low, which may cause problems such as slow charging or even charging.
  • the line impedance of the poor quality charging line is large, the charging line will have a relatively large heat generation, which is dangerous.
  • Figure 1 shows a schematic diagram of the adapter charging the terminal.
  • the terminal can identify whether the adapter is a standard adapter by detecting that the adapter's output voltage is too low.
  • the charging IC Integrated Chip, IC for short
  • the terminal can obtain the voltage V bus of the charging interface through the charging IC detecting the charging interface.
  • the charging IC detects the voltage value V bus of the charging interface at any time, and the V bus also gradually decreases as the charging current I i increases. V and V bus can be considered to be substantially equal before the output voltage of the adapter is pulled low by the overcurrent. When the V bus gradually drops and falls near the preset voltage value, the adapter stops charging the phone due to overcurrent protection.
  • the rated voltage of the adapter is V adapter , and the output voltage V of the adapter will gradually decrease with the increase of the charging current I i .
  • V V adapter -I i ⁇ R. It can be seen that V is the output voltage of the adapter obtained by calculation in consideration of the presence of the line impedance R; V bus is the voltage at the terminal charging interface detected by the charging IC. The two may be equal and may not be equal.
  • FIG. 2 shows a charging method provided by an embodiment of the present invention.
  • the execution body of the method may be a terminal such as a mobile phone, a tablet computer, or the like.
  • the method includes the following steps:
  • the charging device can be a device that can charge the terminal such as an adapter or a charging treasure; the adapter is also called a charger, and can be roughly classified into a travel charger, a seat charger, and a maintenance charger.
  • the charging interface of the terminal may be a USB port or a mini USB port or a USB 3.0 port or a thunderbolt interface or a USB-C interface, such as an interface that can connect the terminal to the charging device.
  • Commonly used charging cables include USB charging cable, Apple's thunderbolt charging cable, and so on.
  • the first voltage value of the charging interface is identified, and the detection and identification can be performed by the charging IC of the terminal.
  • S104 setting a second charging current; identifying a second voltage value of the charging interface at the second charging current.
  • the terminal can preset a second charging current as the initial charging current.
  • the charging current refers to the output current of the charging device when the charging device charges the terminal.
  • the initial charging current is generally less than the rated current of the charging device.
  • the terminal can identify the second voltage value at the charging interface at the second charging current by its own charging IC.
  • S106 Calculate the charging according to the first voltage value, the second charging current, and the second voltage value. Line impedance of the line.
  • the line impedance of the charging line can be calculated through step S106. If the calculated line impedance exceeds the preset impedance value, the user can be reminded to replace the charging line. Because if the impedance on the line is relatively large, there will be a situation of slow charging or even no charging; if forced charging, it will cause unsafe factors such as heating of the charging line.
  • S108 Adjust a suitable charging current of the charging device according to a line impedance of the charging line.
  • the charging current of the obtained charging device is adjusted in step S108 within the range of the rated output current of the adapter, and thus is a suitable charging current for the charging device.
  • the output voltage of the adapter is stable, which can better charge the terminal and improve the charging experience of the user.
  • the terminal can adapt different charging devices to improve the charging experience of the user.
  • step S106 the line impedance of the charging line is calculated according to the first voltage value, the second charging current, and the second voltage value, and the following formula can be adopted:
  • R (V 1 -V 2 )/I 2 ; wherein R is the line impedance of the charging line, V 1 is the first voltage value, V 2 is the second voltage value, and I 2 is the second charging current .
  • the user is alerted.
  • the preset impedance value can be set as needed, for example, the preset impedance value can be 650 m ⁇ .
  • the user is reminded to remind the user to replace the charging line. Because if the impedance on the line is relatively large, there will be a situation of slow charging or even no charging; if forced charging, it will cause unsafe factors such as heating of the charging line.
  • the way to remind the user is also diverse. You can remind the user on the UI (User Interface, UI for short) of the terminal.
  • the charging cable is not suitable for charging the terminal. Please replace the charging cable or pass the terminal.
  • the indicator light flashes and other means to remind the user to replace the charging cable.
  • adjusting the suitable charging current of the charging device according to the line impedance of the charging line in step S108 includes the steps shown in FIG. 3:
  • the third charging current may be a preset charging current value, which may be set by the charging IC of the terminal.
  • There are various methods for adjusting the third charging current to the fourth charging current For example, directly add a ⁇ I to adjust the third charging current to the fourth charging current; or gradually increase the current by step lifting.
  • step-up current method refer to the above description of the charging current I i .
  • the charging IC of the terminal identifies the fourth voltage value of the charging interface.
  • S206 Calculate an output voltage value of the charging device according to the rated voltage value of the charging device, the fourth charging current, and the line impedance of the charging line.
  • the rated voltage value of the charging device is V adapter . Because of the line impedance, when the rated voltage of the charging device reaches the charging interface of the terminal through the charging line, the output voltage value of the charging device is not equal to the rated voltage of the charging device, and the output voltage of the charging device. The value can be calculated by step S206.
  • the third charging current is a suitable charging current of the charging device.
  • the fourth voltage value is a voltage value of the terminal charging interface detected by the terminal through the charging IC; the output voltage value of the charging device is a theoretical output voltage value of the charging device obtained by the calculation; if the fourth voltage value is smaller than the output of the charging device The voltage value indicates that the output voltage of the charging device is pulled down by the overcurrent, and the fourth charging current may have exceeded the rated current range of the charging device. If the charging current is not suitable, the third charging current is taken as the charging device. Suitable for charging current. The third charging current obtained in this way is within the rated current range of the charging device, and when the output current of the charging device is within the rated current range, the output voltage of the charging device is stable, which can better charge the terminal and improve the charging experience.
  • the step S206 calculates the output voltage value of the charging device according to the rated voltage value of the charging device, the fourth charging current, and the line impedance of the charging line. Specifically, the following formula can be adopted:
  • V V adapter -I 4 ⁇ R; wherein V is the output voltage value of the charging device, V adapter is the rated voltage value of the charging device, I 4 is the fourth charging current, and R is the line impedance of the charging line .
  • the charging method provided by the embodiment of the present invention identifies the first voltage value of the charging interface by detecting the charging device being inserted into the charging interface of the terminal through the charging line; setting a second charging current; and identifying the charging interface under the second charging current a second voltage value; calculating a line impedance of the charging line according to the first voltage value, the second charging current, and the second voltage value; adjusting a suitable charging current of the charging device according to a line impedance of the charging line, capable of The terminal adapts different charging devices to better charge the terminal and enhance the charging experience of the user.
  • FIG. 4 shows a charging device according to an embodiment of the present invention, the charging device comprising:
  • the first identifying unit 302 is configured to detect that the charging device is inserted into the charging interface of the terminal through the charging line, and identify the first voltage value of the charging interface;
  • Setting unit 304 configured to set a second charging current
  • a second identifying unit 306 configured to identify a second voltage value of the charging interface at the second charging current
  • the first calculating unit 308 is configured to calculate a line impedance of the charging line according to the first voltage value, the second charging current, and the second voltage value;
  • the first adjusting unit 310 is configured to adjust a suitable charging current of the charging device according to a line impedance of the charging line.
  • the charging device further includes a reminding unit 312, configured to send a reminder to the user when the line impedance of the charging line is greater than a preset impedance value.
  • a reminding unit 312 configured to send a reminder to the user when the line impedance of the charging line is greater than a preset impedance value.
  • the first adjusting unit 310 includes:
  • a second adjusting unit 3101 configured to adjust a third charging current to be a fourth charging current
  • a third identifying unit 3102 configured to identify a fourth voltage value of the charging interface at the fourth charging current
  • a second calculating unit 3103 configured to calculate an output voltage value of the charging device according to a rated voltage value of the charging device, the fourth charging current, and a line impedance of the charging line;
  • the determining unit 3104 is configured to: if the fourth voltage value is less than an output voltage value of the charging device, the third charging current is a suitable charging current of the charging device.
  • FIG. 6 shows a terminal, one or more processors 402, a memory 404, and one or more programs in accordance with an embodiment of the present invention; wherein the one or more programs are stored in the memory and configured to be Executing by the one or more processors, the one or more programs comprising instructions for:
  • the appropriate charging current of the charging device is adjusted according to the line impedance of the charging line.
  • calculating a line impedance of the charging line according to the first voltage value, the second charging current, and the second voltage value is specifically:
  • R (V 1 -V 2 )/I 2 ; wherein R is the line impedance of the charging line, V 1 is the first voltage value, V 2 is the second voltage value, and I 2 is the second charging current .
  • the user is alerted.
  • adjusting the suitable charging current of the charging device according to the line impedance of the charging line includes:
  • the third charging current is a suitable charging current of the charging device.
  • V V adapter ⁇ I 4 ⁇ R; wherein V is the The output voltage value of the charging device, V adapter is the rated voltage value of the charging device, I 4 is the fourth charging current, and R is the line impedance of the charging line.
  • Embodiments of the present invention also provide a computer readable storage medium storing one or more programs, the one or more programs including instructions that, when executed by the terminal, cause the terminal to execute Any of the methods according to the first embodiment.

Abstract

一种充电方法、充电装置和终端。该方法包括:检测到充电装置通过充电线插入终端的充电接口,识别该充电接口的第一电压值;设置第二充电电流;识别在该第二充电电流下该充电接口的第二电压值;根据该第一电压值、该第二充电电流和该第二电压值,计算该充电线的线路阻抗;根据该充电线的线路阻抗调整该充电装置的适宜充电电流,使得终端能够自适应不同的充电装置,提升用户的充电体验。

Description

一种充电方法、充电装置和终端 技术领域
本发明实施例涉及信息技术领域,尤其涉及一种充电方法、充电装置和终端。
背景技术
随着手机的快速发展,市场上的手机种类越来越多,作为手机的必要配件,适配器以及USB(Universal Serial Bus,通用串行总线,简称USB)线种类也是五花八门。普通家庭里面,一般都有多个手机充电器,这些充电器的功率及电气特性大多不一样。另外,根据工信部制定的统一接口标准,换用不同的USB线,可以给不同的手机充电。目前智能手机的电池容量都比较大,手机设定的充电电流也比较大,使用标准配置的充电器来给手机充电可能没什么问题,但非标配的但符合国家标准的充电器在家庭里面也有很多。然而,使用非标配适配器为手机充电时,由于手机设置的充电电流过大,超过适配器的额定电流,会使得适配器产生过流保护,无法充电。而当用户使用质量较差的USB线时,由于USB线上的阻抗问题,会导致线上分压过大,到达手机端的电压过低,会出现充电慢,甚至无法充电等问题。
发明内容
本发明提供了一种充电方法、充电装置和终端,使得终端能够自适应不同的充电装置,提升用户的充电体验。
本发明第一方面提供了一种充电方法,所述方法包括:检测到充电装置通过充电线插入终端的充电接口,识别所述充电接口的第一电压值;设置第二充电电流;识别在所述第二充电电流下所述充电接口的第二电压值;根据所述第一电压值、所述第二充电电流和所述第二电压值,计算所述充电线的线路阻抗;根据所述充电线的线路阻抗调整所述充电装置的适宜充电电流。
结合第一方面,在第一方面第一种可能的实现方式中,所述根据所述第一电压值、所述第二充电电流和所述第二电压值,计算所述充电线的线路阻抗具体为:R=(V1-V2)/I2;其中,R为所述充电线的线路阻抗,V1为所述第一电 压值,V2为所述第二电压值,I2为所述第二充电电流。
结合第一方面第一种可能的实现方式,在第一方面第二种可能的实现方式中,当所述充电线的线路阻抗大于预设的阻抗值时,向用户发出提醒。
结合第一方面或第一方面第一种可能的实现方式或第一方面第二种可能的实现方式中的任一种可能的实现方式,在第一方面第三种可能的实现方式中,所述根据所述充电线的线路阻抗调整所述充电装置的适宜充电电流包括:调整第三充电电流为第四充电电流;识别在所述第四充电电流下所述充电接口的第四电压值;根据充电装置的额定电压值、所述第四充电电流、所述充电线的线路阻抗,计算所述充电装置的输出电压值;若所述第四电压值小于所述充电装置的输出电压值,则所述第三充电电流为所述充电装置的适宜充电电流。
结合第一方面第三种可能的实现方式,在第一方面第四种可能的实现方式中,所述根据充电装置的额定电压值、所述第四充电电流和所述充电线的线路阻抗,计算所述充电装置的输出电压值具体为:V=Vadapter-I4×R;其中,V为所述充电装置的输出电压值,Vadapter为所述充电装置的额定电压值,I4为所述第四充电电流,R为所述充电线的线路阻抗。
本发明第二方面提供了一种充电装置,所述装置包括:第一识别单元,用于检测到充电装置通过充电线插入终端的充电接口,识别所述充电接口的第一电压值;设置单元,用于设置第二充电电流;第二识别单元,用于识别在所述第二充电电流下所述充电接口的第二电压值;第一计算单元,用于根据所述第一电压值、所述第二充电电流和所述第二电压值,计算所述充电线的线路阻抗;第一调整单元,用于根据所述充电线的线路阻抗调整所述充电装置的适宜充电电流。
结合第二方面,在第二方面第一种可能的实现方式中,所述第一计算单元具体用于:R=(V1-V2)/I2;其中,R为所述充电线的线路阻抗,V1为所述第一电压值,V2为所述第二电压值,I2为所述第二充电电流。
结合第二方面第一种可能的实现方式,在第二方面第二种可能的实现方式中,所述装置还包括提醒单元,用于当所述充电线的线路阻抗大于预设的阻抗值时,向用户发出提醒。
结合第二方面或第二方面第一种可能的实现方式或第二方面第二种可能的实现方式中的任一种可能的实现方式,在第二方面第三种可能的实现方式中, 所述第一调整单元包括:第二调整单元,用于调整第三充电电流为第四充电电流;第三识别单元,用于识别在所述第四充电电流下所述充电接口的第四电压值;第二计算单元,用于根据充电装置的额定电压值、所述第四充电电流和所述充电线的线路阻抗,计算所述充电装置的输出电压值;判断单元,用于若所述第四电压值小于所述充电装置的输出电压值,则所述第三充电电流为所述充电装置的适宜充电电流。
结合第二方面第三种可能的实现方式,在第二方面第四种可能的实现方式中,所述第二计算单元具体用于:V=Vadapter-I4×R;其中,V为所述充电装置的输出电压值,Vadapter为所述充电装置的额定电压值,I4为所述第四充电电流,R为所述充电线的线路阻抗。
本发明第三方面提供了一种终端,所述终端包括:一个或多个处理器;存储器;一个或多个程序;其中,所述一个或多个程序被存储在所述存储器中并被配置为被所述一个或多个处理器执行,所述一个或多个程序包括指令,所述指令用于:检测到充电装置通过充电线插入终端的充电接口,识别所述充电接口的第一电压值;设置第二充电电流;识别在所述第二充电电流下所述充电接口的第二电压值;根据所述第一电压值、所述第二充电电流和所述第二电压值,计算所述充电线的线路阻抗;根据所述充电线的线路阻抗调整所述充电装置的适宜充电电流。
结合第三方面,在第三方面第一种可能的实现方式中,所述根据所述第一电压值、所述第二充电电流和所述第二电压值,计算所述充电线的线路阻抗具体为:R=(V1-V2)/I2;其中,R为所述充电线的线路阻抗,V1为所述第一电压值,V2为所述第二电压值,I2为所述第二充电电流。
结合第三方面第一种可能的实现方式,在第三方面第二种可能的实现方式中,当所述充电线的线路阻抗大于预设的阻抗值时,向用户发出提醒。
结合第三方面或第三方面第一种可能的实现方式或第三方面第二种可能的实现方式中的任一种可能的实现方式,在第三方面第三种可能的实现方式中,所述根据所述充电线的线路阻抗调整所述充电装置的适宜充电电流包括:调整第三充电电流为第四充电电流;识别在所述第四充电电流下所述充电接口的第四电压值;根据充电装置的额定电压值、所述第四充电电流和所述充电线的线路阻抗,计算所述充电装置的输出电压值;若所述第四电压值小于所述充电装 置的输出电压值,则所述第三充电电流为所述充电装置的适宜充电电流。
结合第三方面第三种可能的实现方式,在第三方面第四种可能的实现方式中,所述根据充电装置的额定电压值、所述第四充电电流、所述充电线的线路阻抗,计算所述充电装置的输出电压值具体为:V=Vadapter-I4×R;其中,V为所述充电装置的输出电压值,Vadapter为所述充电装置的额定电压值,I4为所述第四充电电流,R为所述充电线的线路阻抗。
本发明第四方面提供了一种终端,所述终端包括:一个或多个处理器;存储器;以及一个或多个程序,其中所述一个或多个程序被存储在所述存储器中并被配置为被所述一个或多个处理器执行,所述一个或多个程序包括用于执行根据第一方面至第一方面第四种可能的实现方式中的任一种可能的实现方式所述的方法的指令。
本发明第五方面提供了一种存储一个或多个程序的计算机可读存储介质,所述一个或多个程序包括指令,所述指令当被所述终端执行时使得所述终端执行根据第一方面至第一方面第四种可能的实现方式中的任一种可能的实现方式所述的方法。
在上述技术方案中,本发明提供的一种充电方法、充电装置、终端和计算机可读存储介质,通过检测到充电装置通过充电线插入终端的充电接口,识别该充电接口的第一电压值;设置第二充电电流;识别在该第二充电电流下该充电接口的第二电压值;根据该第一电压值、该第二充电电流和该第二电压值,计算该充电线的线路阻抗;根据该充电线的线路阻抗调整该充电装置的适宜充电电流,使得终端能够自适应不同的充电装置,提升用户的充电体验。
附图说明
为了更清楚地说明本发明实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其它的附图。
图1是充电装置为终端充电的示意图;
图2是本发明实施例提供的一种充电方法的示意图;
图3是本发明实施例提供的调整充电电流方法的示意图;
图4是本发明实施例提供的一种终端的示意图;
图5是本发明实施例提供的第一调整单元的结构示意图;
图6是本发明实施例提供的又一种终端的示意图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
当本发明实施例提及“第一”、“第二”等序数词时,除非根据上下文其确实表达顺序之意,应当理解为仅仅是起区分之用。
本发明实施例中的终端,可以包括手机、平板电脑、MP3播放器、可穿戴设备如智能手表等。
当用户使用非标配适配器等充电装置为终端充电时,由于终端如手机设置的充电电流比较大,超过适配器的额定电流,会使得充电装置产生过流保护,无法充电。而当用户使用质量较差的充电线如USB线时,由于USB线上的阻抗问题,会导致线上分压过大,到达手机端的电压过低,会出现充电慢,甚至无法充电等问题。此外,由于质量较差的充电线的线路阻抗较大,充电线的发热也会比较大,这种情形是比较危险的。
下面以充电装置为适配器、终端为手机为例,说明适配器为手机充电时,手机充电接口的电压变化。图1给出了适配器为终端充电的示意图。当适配器插入终端为终端充电时,终端可以通过检测适配器的输出电压过低,识别适配器是否为标配适配器。若适配器不是该终端的标配适配器,当适配器通过充电线连接终端的充电接口后,手机的充电IC(Integrated Chip,集成芯片,简称IC)可以设置一个初始充电电流I0,比如,I0=500ma,此时,因为充电电流较小,小于适配器的额定充电电流,可以认为适配器的输出电压V等于充电接口的电压Vbus。其中,终端可以通过充电IC检测充电接口得到充电接口的电压Vbus。之后手机的充电IC以ΔI为单位阶梯提升充电电流,即Ii=I0+ΔI×i,其中,Ii为 提升后的充电电流,I0为预设的初始充电电流,ΔI为充电电流的调整值,i为非负整数,i=0,1,2,3…。比如,ΔI=100ma。由于充电线上存在线路阻抗R,随着充电电流Ii的不断提升,适配器的输出电压V逐渐下降。充电IC随时检测充电接口的电压值Vbus,Vbus也会随着充电电流Ii的提升逐渐下降。在适配器的输出电压被过流拉低之前,可以认为V和Vbus基本相等。当Vbus逐渐下降跌落到预设的电压值附近时,由于存在过流保护,适配器会停止为手机充电。
记适配器的额定电压为Vadapter,适配器的输出电压V会随着充电电流Ii的提升逐渐下降,适配器的输出电压V和适配器的额定电压Vadapter之间存在如下关系:V=Vadapter-Ii×R。可以看出,V是在考虑存在线路阻抗R的情况下,通过计算得到的适配器的输出电压;Vbus是充电IC检测到的终端充电接口处的电压。二者可能相等,可能不相等。
实施例一
图2给出了本发明实施例提供的一种充电方法,该方法的执行主体可以是终端如手机、平板电脑等。该方法包括以下步骤:
S102:检测到充电装置通过充电线插入终端的充电接口,识别该充电接口的第一电压值。
充电装置可以为适配器或充电宝等可为终端充电的装置;适配器也叫充电器,大致可以分为旅行充电器、座式充电器和维护型充电器。终端的充电接口可以为USB口或miniUSB口或USB3.0口或thunderbolt接口或USB-C接口等可连接终端与充电装置的接口。常用的充电线有USB充电线、苹果公司的雷电(thunderbolt)充电线等。具体的,识别充电接口的第一电压值,可以通过终端的充电IC进行检测识别。
S104:设置第二充电电流;识别在该第二充电电流下该充电接口的第二电压值。
若充电装置为非标配的充电装置,在充电装置刚插入终端的充电接口时,终端可以预设一个第二充电电流,作为初始充电电流。充电电流是指充电装置为终端充电时充电装置的输出电流。初始充电电流一般小于充电装置的额定电流。终端可以通过自身的充电IC识别在第二充电电流下充电接口处的第二电压值。
S106:根据该第一电压值、该第二充电电流和该第二电压值,计算该充电 线的线路阻抗。
不同类型的充电线,线上阻抗是不同的。质量好的充电线,线上阻抗约为300mΩ,质量差一些的充电线,线上阻抗约为700mΩ。通过步骤S106可以计算得到充电线的线路阻抗,若计算得到的线路阻抗超过预设阻抗值,可以提醒用户更换充电线。因为如果线上阻抗比较大,则会出现充电慢甚至不充电的情况;若强行充电,还会导致充电线发热等不安全因素。
S108:根据该充电线的线路阻抗调整该充电装置的适宜充电电流。
通过步骤S108调整得到的充电装置的充电电流,在适配器的额定输出电流的范围内,因此为该充电装置的适宜充电电流。当适配器输出的充电电流在适配器的额定电流范围内时,适配器的输出电压稳定,能够更好的为终端充电,提升用户的充电体验。
本发明实施例,通过计算充电线的线路阻抗,调整充电装置的充电电流为适宜的充电电流,能够使得终端自适应不同的充电装置,提升用户的充电体验。
具体的,步骤S106中根据该第一电压值、该第二充电电流和该第二电压值,计算该充电线的线路阻抗,可以通过如下公式:
R=(V1-V2)/I2;其中,R为该充电线的线路阻抗,V1为该第一电压值,V2为该第二电压值,I2为该第二充电电流。
可选的,当计算得到的该充电线的线路阻抗大于预设的阻抗值时,向用户发出提醒。预设的阻抗值可以根据需要设定,比如该预设阻抗值可以为650mΩ。当计算得到的充电线的线路阻抗大于650mΩ,向用户发出提醒,可以提醒用户更换充电线。因为如果线上阻抗比较大,则会出现充电慢甚至不充电的情况;若强行充电,还会导致充电线发热等不安全因素。向用户提醒的方式也是多样的,可以在终端的UI(User Interface,用户界面,简称UI)上提醒用户,该充电线不适宜用来给该终端充电,请更换充电线,也可以通过终端上的指示灯闪烁等方式,提醒用户更换充电线。
具体的,步骤S108中根据该充电线的线路阻抗调整该充电装置的适宜充电电流包括如图3所示的步骤:
S202:调整第三充电电流为第四充电电流。
第三充电电流可以是一预设的充电电流值,可以由终端的充电IC设定。由第三充电电流调整为第四充电电流,可以有多种方法。比如,直接增加一个ΔI, 将第三充电电流调整为第四充电电流;或者通过阶梯提升的方式,逐渐增加电流。具体的阶梯提升电流方法,可以参见上文对充电电流Ii的表述。
S204:识别在该第四充电电流下该充电接口的第四电压值
在充电电流为第四充电电流时,终端的充电IC识别充电接口的第四电压值。
S206:根据充电装置的额定电压值、该第四充电电流和该充电线的线路阻抗,计算该充电装置的输出电压值。
充电装置的额定电压值为Vadapter,由于存在线路阻抗,充电装置的额定电压经过充电线到达终端的充电接口时,充电装置的输出电压值已不等于充电装置的额定电压,充电装置的输出电压值可以通过步骤S206计算。
S208:若该第四电压值小于该充电装置的输出电压值,则该第三充电电流为该充电装置的适宜充电电流。
第四电压值是终端通过充电IC检测得到的终端充电接口的电压值;充电装置的输出电压值是通过计算得到的充电装置的理论输出电压值;若该第四电压值小于该充电装置的输出电压值,说明充电装置的输出电压被过流拉低,则第四充电电流可能已超过充电装置的额定电流范围,不是该充电装置的适宜充电电流,则取第三充电电流为该充电装置的适宜充电电流。通过这种方式得到的第三充电电流在充电装置的额定电流范围内,充电装置的输出电流在额定电流范围内时,充电装置的输出电压稳定,能够更好的为终端充电,提升充电体验。
其中,步骤S206中根据充电装置的额定电压值、该第四充电电流和该充电线的线路阻抗,计算该充电装置的输出电压值,具体可以通过如下公式:
V=Vadapter-I4×R;其中,V为该充电装置的输出电压值,Vadapter为该充电装置的额定电压值,I4为该第四充电电流,R为该充电线的线路阻抗。
本发明实施例提供的充电方法,通过检测到充电装置通过充电线插入终端的充电接口,识别该充电接口的第一电压值;设置第二充电电流;识别在该第二充电电流下该充电接口的第二电压值;根据该第一电压值、该第二充电电流和该第二电压值,计算该充电线的线路阻抗;根据该充电线的线路阻抗调整该充电装置的适宜充电电流,能够使得终端自适应不同的充电装置,更好的为终端充电,提升用户的充电体验。
实施例二
图4给出了本发明实施例提供的一种充电装置,该充电装置包括:
第一识别单元302,用于检测到充电装置通过充电线插入终端的充电接口,识别该充电接口的第一电压值;
设置单元304,用于设置第二充电电流;
第二识别单元306,用于识别在该第二充电电流下该充电接口的第二电压值;
第一计算单元308,用于根据该第一电压值、该第二充电电流和该第二电压值,计算该充电线的线路阻抗;
第一调整单元310,用于根据该充电线的线路阻抗调整该充电装置的适宜充电电流。
具体的,第一计算单元308通过如下公式计算充电线的线路阻抗:R=(V1-V2)/I2;其中,R为该充电线的线路阻抗,V1为该第一电压值,V2为该第二电压值,I2为该第二充电电流。
可选的,该充电装置还包括提醒单元312,用于当该充电线的线路阻抗大于预设的阻抗值时,向用户发出提醒。
具体的,如图5所示,第一调整单元310包括:
第二调整单元3101,用于调整第三充电电流为第四充电电流;
第三识别单元3102,用于识别在该第四充电电流下该充电接口的第四电压值;
第二计算单元3103,用于根据充电装置的额定电压值、该第四充电电流和该充电线的线路阻抗,计算该充电装置的输出电压值;
判断单元3104,用于若该第四电压值小于该充电装置的输出电压值,则该第三充电电流为该充电装置的适宜充电电流。
具体的,该第二计算单元3103具体用于:V=Vadapter-I4×R;其中,V为该充电装置的输出电压值,Vadapter为该充电装置的额定电压值,I4为该第四充电电流,R为该充电线的线路阻抗。
实施例三
图6给出了本发明实施例的一种终端,一个或多个处理器402;存储器404;一个或多个程序;其中,该一个或多个程序被存储在该存储器中并被配置为被该一个或多个处理器执行,该一个或多个程序包括指令,该指令用于:
检测到充电装置通过充电线插入终端的充电接口,识别该充电接口的第一电压值;
设置第二充电电流;
识别在该第二充电电流下该充电接口的第二电压值;
根据该第一电压值、该第二充电电流和该第二电压值,计算该充电线的线路阻抗;
根据该充电线的线路阻抗调整该充电装置的适宜充电电流。
具体的,根据该第一电压值、该第二充电电流和该第二电压值,计算该充电线的线路阻抗具体为:
R=(V1-V2)/I2;其中,R为该充电线的线路阻抗,V1为该第一电压值,V2为该第二电压值,I2为该第二充电电流。
可选的,当该充电线的线路阻抗大于预设的阻抗值时,向用户发出提醒。
具体的,根据该充电线的线路阻抗调整该充电装置的适宜充电电流包括:
调整第三充电电流为第四充电电流;
识别在该第四充电电流下该充电接口的第四电压值;
根据充电装置的额定电压值、该第四充电电流和该充电线的线路阻抗,计算该充电装置的输出电压值;
若该第四电压值小于该充电装置的输出电压值,则该第三充电电流为该充电装置的适宜充电电流。
具体的,根据充电装置的额定电压值、该第四充电电流、该充电线的线路阻抗,计算该充电装置的输出电压值具体为:V=Vadapter-I4×R;其中,V为该充电装置的输出电压值,Vadapter为该充电装置的额定电压值,I4为该第四充电电流,R为该充电线的线路阻抗。
实施例四
本发明实施例还提供了一种计算机可读存储介质,该计算机可读存储介质存储一个或多个程序,该一个或多个程序包括指令,该指令当被该终端执行时,使得该终端执行根据实施例一所述的任一种方法。
最后应说明的是:以上实施例仅用以示例性说明本发明的技术方案,而非对其限制;尽管参照前述实施例对本发明及本发明带来的有益效果进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或 者替换,并不使相应技术方案的本质脱离本发明权利要求的范围。

Claims (17)

  1. 一种充电方法,其特征在于,所述方法包括:
    检测到充电装置通过充电线插入终端的充电接口,识别所述充电接口的第一电压值;
    设置第二充电电流;
    识别在所述第二充电电流下所述充电接口的第二电压值;
    根据所述第一电压值、所述第二充电电流和所述第二电压值,计算所述充电线的线路阻抗;
    根据所述充电线的线路阻抗调整所述充电装置的适宜充电电流。
  2. 根据权利要求1所述的方法,其特征在于,所述根据所述第一电压值、所述第二充电电流和所述第二电压值,计算所述充电线的线路阻抗具体为:
    R=(V1-V2)/I2;其中,R为所述充电线的线路阻抗,V1为所述第一电压值,V2为所述第二电压值,I2为所述第二充电电流。
  3. 根据权利要求2所述的方法,其特征在于,当所述充电线的线路阻抗大于预设的阻抗值时,向用户发出提醒。
  4. 根据权利要求1-3任一项所述的方法,其特征在于,所述根据所述充电线的线路阻抗调整所述充电装置的适宜充电电流包括:
    调整第三充电电流为第四充电电流;
    识别在所述第四充电电流下所述充电接口的第四电压值;
    根据充电装置的额定电压值、所述第四充电电流、所述充电线的线路阻抗,计算所述充电装置的输出电压值;
    若所述第四电压值小于所述充电装置的输出电压值,则所述第三充电电流为所述充电装置的适宜充电电流。
  5. 根据权利要求4所述的方法,其特征在于,所述根据充电装置的额定电压值、所述第四充电电流和所述充电线的线路阻抗,计算所述充电装置的输出电压值具体为:
    V=Vadapter-I4×R;其中,V为所述充电装置的输出电压值,Vadapter为所述充电装置的额定电压值,I4为所述第四充电电流,R为所述充电线的线路阻抗。
  6. 一种充电装置,其特征在于,所述装置包括:
    第一识别单元,用于检测到充电装置通过充电线插入终端的充电接口,识别所述充电接口的第一电压值;
    设置单元,用于设置第二充电电流;
    第二识别单元,用于识别在所述第二充电电流下所述充电接口的第二电压值;
    第一计算单元,用于根据所述第一电压值、所述第二充电电流和所述第二电压值,计算所述充电线的线路阻抗;
    第一调整单元,用于根据所述充电线的线路阻抗调整所述充电装置的适宜充电电流。
  7. 根据权利要求6所述的装置,其特征在于,所述第一计算单元具体用于:
    R=(V1-V2)/I2;其中,R为所述充电线的线路阻抗,V1为所述第一电压值,V2为所述第二电压值,I2为所述第二充电电流。
  8. 根据权利要求7所述的装置,其特征在于,所述装置还包括提醒单元,用于当所述充电线的线路阻抗大于预设的阻抗值时,向用户发出提醒。
  9. 根据权力要去6-8任一项所述的装置,其特征在于,所述第一调整单元包括:
    第二调整单元,用于调整第三充电电流为第四充电电流;
    第三识别单元,用于识别在所述第四充电电流下所述充电接口的第四电压值;
    第二计算单元,用于根据充电装置的额定电压值、所述第四充电电流和所述充电线的线路阻抗,计算所述充电装置的输出电压值;
    判断单元,用于若所述第四电压值小于所述充电装置的输出电压值,则所述第三充电电流为所述充电装置的适宜充电电流。
  10. 根据权利要求9所述的装置,其特征在于,所述第二计算单元具体用于:
    V=Vadapter-I4×R;其中,V为所述充电装置的输出电压值,Vadapter为所述充电装置的额定电压值,I4为所述第四充电电流,R为所述充电线的线路阻抗。
  11. 一种终端,其特征在于,所述终端包括:
    一个或多个处理器;
    存储器;
    一个或多个程序;
    其中,所述一个或多个程序被存储在所述存储器中并被配置为被所述一个或多个处理器执行,所述一个或多个程序包括指令,所述指令用于:
    检测到充电装置通过充电线插入终端的充电接口,识别所述充电接口的第一电压值;
    设置第二充电电流;
    识别在所述第二充电电流下所述充电接口的第二电压值;
    根据所述第一电压值、所述第二充电电流和所述第二电压值,计算所述充电线的线路阻抗;
    根据所述充电线的线路阻抗调整所述充电装置的适宜充电电流。
  12. 根据权利要求11所述的终端,其特征在于,所述根据所述第一电压值、所述第二充电电流和所述第二电压值,计算所述充电线的线路阻抗具体为:
    R=(V1-V2)/I2;其中,R为所述充电线的线路阻抗,V1为所述第一电压值,V2为所述第二电压值,I2为所述第二充电电流。
  13. 根据权利要求12所述的终端,其特征在于,当所述充电线的线路阻抗大于预设的阻抗值时,向用户发出提醒。
  14. 根据权利要求11-13任一项所述的终端,其特征在于,所述根据所述充电线的线路阻抗调整所述充电装置的适宜充电电流包括:
    调整第三充电电流为第四充电电流;
    识别在所述第四充电电流下所述充电接口的第四电压值;
    根据充电装置的额定电压值、所述第四充电电流和所述充电线的线路阻抗,计算所述充电装置的输出电压值;
    若所述第四电压值小于所述充电装置的输出电压值,则所述第三充电电流为所述充电装置的适宜充电电流。
  15. 根据权利要求14所述的方法,其特征在于,所述根据充电装置的额定电压值、所述第四充电电流、所述充电线的线路阻抗,计算所述充电装置的输出电压值具体为:
    V=Vadapter-I4×R;其中,V为所述充电装置的输出电压值,Vadapter为所述充电装置的额定电压值,I4为所述第四充电电流,R为所述充电线的线路阻抗。
  16. 一种终端,其特征在于,所述终端包括:
    一个或多个处理器;存储器;以及一个或多个程序,其中所述一个或多个程序被存储在所述存储器中并被配置为被所述一个或多个处理器执行,所述一个或多个程序包括用于执行根据权利要求1-5任一项所述的方法的指令。
  17. 一种存储一个或多个程序的计算机可读存储介质,所述一个或多个程序包括指令,所述指令当被所述终端执行时使得所述终端执行根据权利要求1-5任一项所述的方法。
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US20180109118A1 (en) 2018-04-19
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