WO2017185686A1 - 充电功率调整方法、装置及电子设备 - Google Patents

充电功率调整方法、装置及电子设备 Download PDF

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WO2017185686A1
WO2017185686A1 PCT/CN2016/102967 CN2016102967W WO2017185686A1 WO 2017185686 A1 WO2017185686 A1 WO 2017185686A1 CN 2016102967 W CN2016102967 W CN 2016102967W WO 2017185686 A1 WO2017185686 A1 WO 2017185686A1
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charging
charger
current
power
charging power
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PCT/CN2016/102967
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English (en)
French (fr)
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雷军
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乐视控股（北京）有限公司
乐视移动智能信息技术（北京）有限公司
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/40—Bus structure
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/40—Bus structure
    • G06F13/4063—Device-to-bus coupling
    • G06F13/4068—Electrical coupling

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  • the present disclosure relates to the field of Universal Serial Bus Power Delivery (USB-PD) technology, for example, to a charging power adjustment method, apparatus, and electronic device.
  • USB-PD Universal Serial Bus Power Delivery
  • USB-PD is an emerging fast charging technology. It mainly implements this kind of fast charging design through Type-C interface. In order to understand USB-PD charging technology, the basic structure of Type-C interface will be explained first.
  • the biggest feature of the Type-C interface is that it supports the "front and back insertion" function that can be inserted from both sides.
  • the A side and the B side respectively have 12 pins.
  • the arrangement of each pin is shown in Table 1:
  • TX1+, TX1-, RX1+, RX1-, TX2+, TX2-, RX2+, RX2- are four pairs of differential signal pins
  • GND is the ground pin
  • D+ and D- are USB differential signal pins for USB2.0 compatibility.
  • VBUS is the power pin
  • CC1 and CC2 are the pins for detecting the forward and reverse insertion, distinguishing the master and slave, and configuring the VBUS voltage.
  • SBU1 and SBU2 are bus pins.
  • the Type-C interface has four power pins and four ground pins, the Type-C interface can theoretically support 100W power output, which is why the Type-C interface can achieve USB-PD fast charging.
  • USB-PD fast charging refers to requesting the charger to adjust the output power through the USB 5V voltage (VBUS) DC level on the frequency-shift keying (FSK) signal.
  • the process of pressure and current, the process includes the following steps 1-5.
  • step 1 the electronic device identifies whether the inserted charger is a PD charger that supports fast charging. If the inserted charger is a PD charger that supports fast charging, the switching is performed, that is, the differential signal pin of the Type-C is changed to Used to transmit PD signals (including PD commands and data, etc.), and change the SBU1 and SUB2 bus pins of Type-C to Auxiliary (AUX) signals.
  • the switching is performed, that is, the differential signal pin of the Type-C is changed to Used to transmit PD signals (including PD commands and data, etc.), and change the SBU1 and SUB2 bus pins of Type-C to Auxiliary (AUX) signals.
  • AUX Auxiliary
  • step 2 the USB-PD device policy manager is started, the policy manager monitors the FSK signal coupled on the DC level of the VBUS, and decodes the Capabilities Source message therefrom, and then parses the message according to the USB-PD specification.
  • step 3 the electronic device selects a voltage and current pair from the Capabilities Source message according to the configuration of the user, and loads the voltage and current pairs into the payload portion of the charging request message, and then the policy manager will
  • the FSK signal is coupled to the VBUS DC level.
  • step 4 the charger decodes the FSK signal and sends an Accept message to the electronic device while adjusting the output voltage and current of the charger.
  • step 5 after receiving the Accept message, the electronic device adjusts the charging voltage and current of the charging IC.
  • the electronic device can dynamically send a Request message during the charging process to request the charger to change the output voltage and current, thereby implementing a fast charging process.
  • the problem with the above fast charging process is that the voltage and current pairs that can be charged can only be selected according to the configuration of the user, that is, the charging power is selected, and the adaptive adjustment of the charging power cannot be performed according to the heating condition of each important device of the electronic device, so that For example, when charging is performed according to the configured maximum charging power when the battery temperature is too high, not only the charging safety cannot be guaranteed, but also the battery may be damaged and the battery health may be affected.
  • Embodiments of the present disclosure provide a technical solution capable of performing real-time adjustment of charging power according to the temperature of an important device of an electronic device.
  • a charging power adjustment method for use in an electronic device, a package include:
  • the lowest charging power is selected as the target charging power
  • the selected voltage and current pairs are sent to the PD charger for the payload portion loaded to the charging request message.
  • the setting device comprises a battery.
  • the method further includes:
  • the method further includes:
  • the charging connection between the electronic device and the PD charger is disconnected.
  • the method further includes:
  • a second aspect of the present disclosure provides a charging power adjustment apparatus, including:
  • the identification module is configured to identify whether the charger inserted into the USB interface is a PD charger that supports fast charging;
  • a temperature monitoring module configured to obtain a current temperature value of the set device
  • the power determining module is configured to determine a corresponding charging according to a current temperature value of each setting device power
  • a power selection module configured to select a lowest charging power as a target charging power among all charging powers determined by the power determining module
  • a power configuration module configured to select a voltage and current pair that matches the target charging power from all of the voltage and current pairs supported by the PD charger, and load the selected voltage and current pair to the charging request message The payload portion is sent to the PD charger.
  • the device further includes:
  • a power monitoring module configured to obtain the current battery power
  • the power determining module is further configured to determine a corresponding charging power according to the current power.
  • the temperature monitoring module is further configured to obtain a current temperature value of the USB interface; the device further includes:
  • the charging control module is configured to disconnect the charging connection between the electronic device and the PD charger if the temperature monitoring module detects that the current temperature value of the USB interface exceeds the set upper temperature limit.
  • an electronic device comprising the apparatus of the second aspect of the present disclosure.
  • a fourth aspect of the present disclosure provides an electronic device including an interface device, a memory, and a processor, the interface device configured to establish a connection with a charger through a Type-C data line, the memory being configured to store an instruction, The instructions are arranged to control the processor to operate to perform the method according to the first aspect of the present disclosure.
  • a non-transitory computer readable storage medium storing computer executable instructions for causing the computer to perform the method described above is provided.
  • a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions, when the program instructions are When the computer is executed, the computer is caused to perform the above method.
  • the inventors of the present disclosure have found that in the related art, there is an inability to adjust the charging power according to the heat generation of an important device of the electronic device, thereby causing a decrease in charging safety and even device health.
  • the charging voltage and the current provided by the PD charger are selected according to the current temperature value of the setting device, and the charging power is adjusted in real time according to the heating condition of the device, thereby improving the charging. Safety and device health.
  • FIG. 1 is a flow chart of a first embodiment of a charging power adjustment method of the present disclosure
  • FIG. 2 is a flow chart of a second embodiment of the charging power adjustment method of the present disclosure
  • FIG. 3 is a flow chart of a third embodiment of the charging power adjustment method of the present disclosure.
  • FIG. 4 is a block schematic diagram of an implementation structure of a charging power adjusting device of the present disclosure
  • FIG. 5 is a block schematic diagram of an implementation structure of an electronic device of the present disclosure.
  • any numerical values are to be construed as merely exemplary. Accordingly, other examples of the exemplary embodiments may have different numerical values.
  • the technical solution provided by the present disclosure adjusts the charging power requested by the PD charger in real time according to the heat generation condition of the setting device.
  • FIG. 1 is a flow chart of a first embodiment of a charging power adjustment method of the present disclosure.
  • step 110 it is recognized whether the charger inserted into the USB interface is a Power Delivery (PD) charger that supports fast charging, such as a charger inserted into the USB interface to support fast charging.
  • PD Power Delivery
  • the PD charger performs the following charging power real-time adjustment steps, that is, steps 120 to 150. If the charger inserted into the USB interface is not a PD charger that supports fast charging, conventional charging is performed.
  • This conventional charging is charged in a conventional 7.5 W (5 V, 1.5 A) charging mode.
  • the identification operation is performed between the electronic device and the charger in accordance with the USB-PD protocol, and since the identification operation does not involve the improvement of the present disclosure, it will not be described again.
  • step 120 the current temperature value of the set device is obtained.
  • the step 120 may be: receiving a temperature signal collected by a temperature sensor installed on the setting device or surrounding the setting device, and determining a current temperature value of the corresponding device according to the temperature signal.
  • the setting device may optionally include at least a battery, and may also include a CPU, a motherboard, and the like.
  • This step may sequentially complete the acquisition operation of the current temperature values of the plurality of setting devices, or may perform the acquisition operation of the current temperature values of the plurality of setting devices in parallel.
  • step 130 a corresponding charging power is determined based on the current temperature value of each set device.
  • the step 120 may further be: determining a charging power corresponding to a current temperature value of each setting device by searching a look-up table reflecting a correspondence between a temperature value of each setting device and a charging power.
  • This step may sequentially complete a plurality of corresponding charging power determination operations, or may perform a plurality of corresponding charging power determination operations in parallel.
  • the correspondence between the CPU temperature or the motherboard temperature and the charging power is, for example:
  • the charging power is 0W (ie, stop charging); when the CPU temperature is 55 °C to 70 °C, the charging power is 7.5W; when the CPU temperature is 40 °C to 55 °C, the charging power is 20W; The CPU temperature is below 40 °C and the charging power is 27W.
  • the above temperature segments can be divided according to various charging powers that can be supported by the matched dedicated PD charger.
  • step 140 among all the determined charging powers, the lowest charging power is selected as the target. Charging power.
  • the charging power corresponding to the current temperature value of the battery is 7.5 W
  • the charging power corresponding to the current temperature value of the CPU is 20 W
  • the charging power corresponding to the current temperature value of the main board is 27 W
  • 7.5 W is selected as the target charging power.
  • step 150 a voltage and current pair that matches the target charging power is selected from all of the voltage and current pairs supported by the PD charger.
  • the PD charger will send a list of all the voltage and current pairs it supports to one end of the electronic device. Therefore, the electronic device can select a voltage and current pair in the list as the charging voltage requested by the PD charger. Current.
  • a voltage and current pair that is matched to the target charger can be selected in step 150. If a voltage and current pair that completes the match is not found, then a voltage and current pair with the power closest to the target charging power can be selected.
  • step 160 the selected voltage and current pairs are sent to the PD charger for the payload portion loaded into the charging request message.
  • the PD charger After receiving the charging request message, the PD charger determines the requested charging voltage and current according to the charging request message, and adjusts the output voltage and current of the charger according to the requested charging voltage and current, and then according to the multiple Set the device's heating condition to adjust the charging power in real time.
  • Another embodiment of the disclosed method also increases the rate of current charge to the battery, which can improve the effective maintenance of the battery health of the disclosed method.
  • FIG. 2 is a flow chart of a second embodiment of the charging power adjustment method of the present disclosure.
  • Steps 210 to 260 in FIG. 2 correspond to step 110 to step 160 in FIG. 1 , except that in step 220, the current power of the battery is also acquired, and in step 230, not only according to each setting device The current temperature value determines the corresponding charging power, and the corresponding charging power is also determined according to the current power.
  • the current amount of power can be obtained from an integrated management circuit (IC).
  • IC integrated management circuit
  • the determination of the corresponding charging power based on the current power amount can also be performed by looking up a comparison table reflecting the correspondence between the battery power and the charging power.
  • the corresponding relationship between the current power and the charging power is, for example, the current power is less than 90%, the charging power is 27W, the current power is between 90% and 95%, the charging power is 7.5W, and the current power is 95% or more.
  • the charging power is 20W.
  • the determining operation of the corresponding charging power may be completed in sequence, or the determining operation of the corresponding charging power may be completed in parallel.
  • the third embodiment of the present disclosure also increases the monitoring of the heating condition of the USB interface.
  • FIG 3 is a flow chart of a third embodiment of the disclosed method.
  • Step 310 in the figure corresponds to step 110 in FIG. 1 or step 210 in FIG. 2, and steps 340 to 380 in the figure correspond to step 120 to step 160 in FIG. 1 or step 220 to step 260 in FIG.
  • the embodiment further includes a step 320 of obtaining a current temperature value of the USB interface.
  • the step may be: receiving a temperature signal collected by a temperature sensor installed on a side of the USB interface, and determining a current temperature value of the USB interface according to the temperature signal.
  • the method further includes a step 330 of determining whether the current temperature value of the USB interface exceeds a set upper temperature limit, and if the current temperature value of the USB interface exceeds the set upper temperature limit, disconnecting between the electronic device and the PD charger
  • the charging connection which can be implemented by controlling the charge management circuit.
  • the upper temperature limit is selected, for example, between 75 ° C and 90 ° C. In one embodiment of the present disclosure, the upper temperature limit is set to 80 ° C.
  • an early warning step may be added, that is, if the current temperature value of the USB interface exceeds the set warning temperature value, an alarm is triggered, and the warning temperature value should be lower than the upper temperature limit, for example, the warning temperature value.
  • the warning temperature value should be lower than the upper temperature limit, for example, the warning temperature value.
  • the triggering alarm includes, for example, at least one of a trigger sound, a light, and a text display alarm to remind the user that the current temperature is too high, and the power is turned off in time.
  • FIG. 4 is a block schematic diagram of an implementation structure of the device.
  • the apparatus 400 includes an identification module 401, a temperature monitoring module 402, a power determination module 403, a power selection module 404, and a power configuration module 405.
  • the above identification module 401 is configured to recognize whether the charger inserted into the USB interface is a PD charger that supports fast charging.
  • the temperature monitoring module 402 is configured to acquire a current temperature value of the setting device.
  • the power determining module 403 is configured to determine a corresponding charging power according to a current temperature value of each setting device.
  • the power selection module 404 is configured to select the lowest charging power as the target charging power among all the charging powers determined by the power determining module 403.
  • the power configuration module 405 is configured to select a voltage and current pair that matches the target charging power from all of the voltage and current pairs supported by the PD charger, and load the selected voltage and current pair into the charging request message. Partially sent to the PD charger.
  • the disclosed apparatus 400 can also include a fuel gauge module (not shown) that is configured to obtain the current amount of power of the battery.
  • the power determining module 404 may be further configured to determine a corresponding charging power according to the current power.
  • the above temperature monitoring module can also be configured to obtain the current temperature value of the USB interface.
  • the disclosed device 400 further includes a charging control module (not shown), the charging control module is configured to be configured when the temperature monitoring module 402 detects that the current temperature value of the USB interface exceeds a set upper temperature limit.
  • a charging connection between the electronic device and the PD charger may further include an early warning module configured to trigger an alarm when a current temperature value of the USB interface exceeds a set early warning temperature value.
  • the present disclosure also provides an electronic device including the charging power adjustment device 400 of the present disclosure.
  • FIG. 5 is a block schematic diagram of an implementation structure of an electronic device of the present disclosure.
  • the electronic device 500 includes a memory 501 and a processor 502 that is configured to store instructions that are arranged to control the processor 502 to operate to perform the charging power adjustment method described above.
  • the electronic device 500 may further include an interface device 503, an input device 504, a display device 505, a communication device 506, a speaker 507, a microphone 508, and a temperature sensor for collecting a temperature signal (Fig. Not shown) and so on.
  • an interface device 503 an input device 504
  • a display device 505 a communication device 506, a speaker 507, a microphone 508, and a temperature sensor for collecting a temperature signal (Fig. Not shown) and so on.
  • a temperature sensor for collecting a temperature signal (Fig. Not shown) and so on.
  • the disclosed electronic device may relate only to some of the devices, such as processor 501, memory 502, interface device 503, temperature sensor, and the like.
  • the communication device 506 can be wired or wirelessly communicated, for example.
  • the interface device 503 includes, for example, a headphone jack, a Type-C interface, etc., such that the Type-C interface of the interface device 503 establishes a connection with the PD charger through the Type-C data line.
  • the input device 504 described above may include, for example, a touch screen, a button, and the like.
  • the display device 505 described above is, for example, a liquid crystal display, a touch display, or the like.
  • the electronic device of the present disclosure is, for example, a mobile phone, a tablet computer, or the like.
  • the present disclosure can be an apparatus, method, and/or computer program product.
  • the computer program product can include a computer program stored on a non-transitory computer readable storage medium, the computer program including program instructions that, when executed by a computer, cause the computer to perform any of the above-described embodiments method.
  • the computer readable storage medium can be a tangible device that can hold and store the instructions used by the instruction execution device.
  • the computer readable storage medium can be, for example, but not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing.
  • Examples of computer readable storage media include: portable computer disks, hard disks, random access memory (RAM), read-only memory ROM, erasable Erasable Programmable Read Only Memory (EPROM), Flash (Flash), Static Random Access Memory (SRAM), Compact Disc Read-Only Memory (CD-ROM) ), a Digital Versatile Disc (DVD), a memory stick, a floppy disk, a mechanical encoding device, such as a punch card with instructions stored therein, and any suitable combination of the above.
  • RAM random access memory
  • EPROM erasable Erasable Programmable Read Only Memory
  • Flash Flash
  • SRAM Static Random Access Memory
  • CD-ROM Compact Disc Read-Only Memory
  • DVD Digital Versatile Disc
  • memory stick such as a punch card with instructions stored therein, and any suitable combination of the above.
  • a computer readable storage medium as used herein is not to be interpreted as a transient signal itself, such as a radio wave or other freely propagating electromagnetic wave, an electromagnetic wave propagating through a waveguide or other transmission medium (eg, a light pulse through a fiber optic cable), or through a wire The electrical signal transmitted.
  • the computer readable program instructions described herein can be downloaded from a computer readable storage medium to a plurality of computing/processing devices or downloaded over a network, such as the Internet, a local area network, a wide area network, and/or a wireless network. Go to an external computer or an external storage device.
  • the network may include copper transmission cables, fiber optic transmissions, wireless transmissions, routers, firewalls, switches, gateway computers, and/or edge servers.
  • a network adapter card or network interface in each computing/processing device receives computer readable program instructions from a network and forwards the computer readable program instructions for storage on a computer readable storage medium in a plurality of computing/processing devices in.
  • Computer program instructions for performing the operations of the present disclosure may be assembly instructions, Industry Standard Architecture (ISA) instructions, machine instructions, machine related instructions, microcode, firmware instructions, state setting data, or in one or more Source code or object code written in any combination of programming languages, including object oriented programming languages - such as Smalltalk, C++, etc., as well as conventional procedural programming languages - such as the "C" language or similar programming languages.
  • the computer readable program instructions can execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer, partly on the remote computer, or entirely on the remote computer or server. carried out.
  • the remote computer can be connected to the user computer through any kind of network including a local area network (LAN) or a wide area network (WAN), or can be connected to an external computer (for example, using the Internet)
  • the service provider comes to connect via the Internet).
  • the customized electronic circuitry such as a programmable logic circuit, a Field-Programmable Gate Array (FPGA), or a programmable logic array (Programmable), is personalized by utilizing state information of computer readable program instructions.
  • Logic Array PLA
  • the electronic circuit can execute computer readable program instructions to implement the present disclosure.
  • the computer readable program instructions can be provided to a general purpose computer, a special purpose computer, or a processor of other programmable data processing apparatus to produce a machine such that when executed by a processor of a computer or other programmable data processing apparatus Means for implementing the functions/acts specified in one or more of the blocks of the flowcharts and/or block diagrams.
  • the computer readable program instructions can also be stored in a computer readable storage medium that causes the computer, programmable data processing device, and/or other device to operate in a particular manner, such that the computer readable medium storing the instructions includes
  • An article of manufacture includes instructions for implementing aspects of the functions/acts recited in one or more of the flowcharts and/or block diagrams.
  • the computer readable program instructions can also be loaded onto a computer, other programmable data processing device, or other device to perform a series of operational steps on a computer, other programmable data processing device or other device to produce a computer-implemented process.
  • instructions executed on a computer, other programmable data processing apparatus, or other device implement the functions/acts recited in one or more of the flowcharts and/or block diagrams.
  • each block in the flowchart or block diagram can represent a module, a program segment, or a portion of an instruction that includes one or more components for implementing the specified logical functions.
  • Executable instructions can also occur in a different order than those illustrated in the drawings. For example, two consecutive blocks may be executed substantially in parallel, and they may sometimes be executed in the reverse order, depending upon the functionality involved.
  • each block of the block diagrams and/or flowcharts, and combinations of blocks in the block diagrams and/or flowcharts can be implemented in a dedicated hardware-based system that performs the specified function or function. Or it can be implemented by a combination of dedicated hardware and computer instructions. It is well known to those skilled in the art that implementation by hardware, implementation by software, and implementation by a combination of software and hardware are equivalent.
  • the charging power adjustment method, device and electronic device provided by the embodiments of the present disclosure adjust the charging power in real time according to the heating condition of the device, thereby improving charging safety and device health.

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Abstract

一种充电功率调整方法、装置（400）及电子设备（500），该方法，应用于电子设备（500），包括：识别插入通用串行总线USB接口的充电器是否为支持快速充电的快速充电PD充电器（110），如插入USB接口的充电器是支持快速充电的PD充电器，则：获取设定器件的当前温度值（120）；根据每一设定器件的当前温度值，确定对应的充电功率（130）；在确定的所有充电功率中，选择最低的充电功率作为目标充电功率（140）；从PD充电器支持的所有电压和电流对中选择与目标充电功率相匹配的一个电压和电流对（150）；以及将选择的电压和电流对加载至充电请求消息的载荷部分发送至PD充电器（160）。

Description

充电功率调整方法、装置及电子设备
本申请要求在2016年4月27日提交中国专利局、申请号为201610274432.0、的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本公开涉及通用串行总线快速充电(Universal Serial Bus Power Delivery，USB-PD)技术领域，例如，涉及一种充电功率调整方法、装置及电子设备。
背景技术
USB-PD是一种新兴的快速充电技术，主要通过Type-C接口实现该种快速充电设计，为了便于了解USB-PD充电技术，以下将先说明一下Type-C接口的基本结构。
Type-C接口的最大特点是支持从正反两面均可插入的“正反插”功能，其A面和B面分别具有12个针脚，每个针脚的布置如表1所示：
表1：
Figure PCTCN2016102967-appb-000001
其中，TX1+、TX1-，RX1+、RX1-，TX2+、TX2-，RX2+、RX2-为四对差分信号针脚，GND为接地针脚，D+、D-为用于兼容USB2.0的USB差分信号针脚，VBUS为电源针脚，CC1、CC2为用于探测正反插、区分主从、配置VBUS电压等的针脚，SBU1、SBU2为总线针脚。
由于Type-C接口具有四个电源针脚和四个接地针脚，因此，Type-C接口理论上能够支持100W的电源输出，这也是Type-C接口能够实现USB-PD快速充电的原因。
在此基础上，USB-PD快速充电是指通过USB的5V电压(VBUS)直流电平上耦合频移键控(Frequency-shift keying，FSK)信号来请求充电器调整输出电 压和电流的过程，该过程包括如下步骤1-5。
在步骤1中，电子设备识别插入的充电器是否为支持快速充电的PD充电器，如插入的充电器是支持快速充电的PD充电器，则进行切换，即将Type-C的差分信号针脚改为用于传输PD信号(包括PD命令和数据等)，将Type-C的SBU1、SUB2总线针脚改为用于传输辅助(Auxiliary，AUX)信号。
在步骤2中，启动USB-PD设备策略管理器，策略管理器监控VBUS的直流电平上耦合的FSK信号，并从中解码得到能力资源(Capabilities Source)消息，再根据USB-PD规范解析该消息得出PD充电器支持的所有电压和电流对列表。
在步骤3中，电子设备根据用户的配置从Capabilities Source消息中选择一个电压和电流对，并将电压和电流对加载至充电请求(Request)消息的载荷(payload)部分，然后，策略管理器将FSK信号耦合到VBUS直流电平上。
在步骤4中，充电器解码FSK信号并发出接收(Accept)消息给电子设备，同时调整充电器的输出电压和电流。
在步骤5中，电子设备接收到Accept消息后，调整充电IC的充电电压和电流。
在此，电子设备在充电过程中可以动态发送Request消息来请求充电器改变输出电压和电流，从而实现快速充电的过程。
上述快速充电过程存在的问题是，只能根据用户的配置选择进行充电的电压和电流对，即选择充电功率，而无法根据电子设备每个重要器件的发热情况进行充电功率的适应性调整，这样，例如在电池温度过高等情况下仍按照配置的最高充电功率进行充电时，不仅无法保证充电安全性，还将可能导致电池受损，影响电池的健康度。
发明内容
本公开实施例提供了一种能够根据电子设备的重要器件的温度进行充电功率的实时调整的技术方案。
本公开的第一方面，提供了一种充电功率调整方法，应用于电子设备，包 括：
识别插入通用串行总线USB接口的充电器是否为支持快速充电的快速充电PD充电器，如插入USB接口的充电器是支持快速充电的PD充电器，则：
获取设定器件的当前温度值；
根据每一设定器件的当前温度值，确定对应的充电功率；
在确定的所有充电功率中，选择最低的充电功率作为目标充电功率；
从所述PD充电器支持的所有电压和电流对中选择与所述目标充电功率相匹配的一个电压和电流对；以及
将选择的电压和电流对加载至充电请求消息的载荷部分发送至所述PD充电器。
可选的，所述设定器件包括电池。
可选的，所述方法还包括：
获取电池的当前电量；以及
根据每一设定器件的当前温度值确定对应的充电功率以及所述当前电量确定对应的充电功率。
可选的，所述方法还包括：
获取USB接口的当前温度值；以及
如果所述USB接口的当前温度值超过设定的温度上限，则断开电子设备与PD充电器之间的充电连接。
可选的，所述方法还包括：
如果所述USB接口的当前温度值超过设定的预警温度值，则触发报警，其中，所述预警温度值低于所述温度上限。
本公开的第二方面，提供了一种充电功率调整装置，包括：
识别模块，设置为识别插入USB接口的充电器是否为支持快速充电的PD充电器；
温度监测模块，设置为获取设定器件的当前温度值；
功率确定模块，设置为根据每一设定器件的当前温度值，确定对应的充电 功率；
功率选择模块，设置为在所述功率确定模块确定的所有充电功率中，选择最低的充电功率作为目标充电功率；以及，
功率配置模块，设置为从所述PD充电器支持的所有电压和电流对中选择与所述目标充电功率相匹配的一个电压和电流对，并将选择的电压和电流对加载至充电请求消息的载荷部分发送至所述PD充电器。
可选的，所述装置还包括：
电量监测模块，设置为获取电池的当前电量；以及
所述功率确定模块还设置为根据所述当前电量确定对应的充电功率。
可选的，所述温度监测模块还设置为获取USB接口的当前温度值；所述装置还包括：
充电控制模块，设置为在所述温度监测模块监测到USB接口的当前温度值超过设定的温度上限的情况下，断开电子设备与PD充电器之间的充电连接。
本公开的第三方面，提供了一种电子设备，包括本公开第二方面所述的装置。
本公开的第四方面，提供了一种电子设备，其包括接口装置、存储器和处理器，所述接口装置设置为通过Type-C数据线与充电器建立连接，所述存储器设置为存储指令，所述指令设置为控制所述处理器进行操作以执行根据本公开第一方面所述的方法。
本公开的第五方面，提供了一种非暂态计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令用于使所述计算机执行上述的方法。
本公开的第六方面，提供了一种计算机程序产品，所述计算机程序产品包括存储在非暂态计算机可读存储介质上的计算机程序，所述计算机程序包括程序指令，当所述程序指令被计算机执行时，使所述计算机执行上述的方法。
本公开的发明人发现，在相关技术中，存在无法根据电子设备的重要器件的发热情况进行充电功率的适应性调整，进而导致充电安全性甚至器件健康度降低。而在本公开实施例中，通过根据设定器件的当前温度值选择请求PD充电器提供的充电电压和电流，根据器件发热情况实时调整充电功率，提高了充电 安全性及器件健康度。
附图说明
一个或多个实施例通过与之对应的附图中的图片进行示例性说明，这些示例性说明并不构成对实施例的限定，附图中具有相同参考数字标号的元件表示为类似的元件，除非有特别申明，附图中的图不构成比例限制。
图1是本公开充电功率调整方法的第一种实施方式的流程图；
图2是本公开充电功率调整方法的第二种实施方式的流程图；
图3是本公开充电功率调整方法的第三种实施方式的流程图；
图4是本公开充电功率调整装置的一种实施结构的方框原理图；以及
图5是本公开电子设备的一种实施结构的方框原理图。
具体实施方式
以下参照附图对实施例进行说明，在不冲突的情况下，实施例和实施例中的特征可以相互任意组合。现在将参照附图来详细描述本公开的示例性实施例。应注意到：本公开对实施例中阐述的部件和步骤的相对布置、数字表达式和数值不进行限制。
在这里示出和讨论的所有例子中，任何数值应被解释为仅仅是示例性的。因此，示例性实施例的其它例子可以具有不同的数值。
应注意到：相似的标号和字母在下面的附图中表示类似项。
本公开提供的技术方案，根据设定器件的发热情况实时调整请求PD充电器提供的充电功率。
图1是本公开的充电功率调整方法的第一种实施方式的流程图。
在步骤110中，识别插入USB接口的充电器是否为支持快速充电的快速充电(Power Delivery，PD)充电器，如插入USB接口的充电器是支持快速充电 的PD充电器，则执行以下充电功率实时调整步骤，即步骤120至步骤150，如插入USB接口的充电器不是支持快速充电的PD充电器，则进行常规充电。
该常规充电即为按照常规的7.5W(5V，1.5A)充电模式进行充电。
该识别操作在电子设备与充电器之间按照USB-PD协议进行，由于该识别操作不涉及本公开的改进点，因此不再赘述。
在步骤120中，获取设定器件的当前温度值。
该步骤120可为：接收安装在设定器件上或者设定器件周围的温度传感器采集到的温度信号，并根据该温度信号确定对应器件的当前温度值。
该设定器件可选是至少包括电池，还可以包括CPU和主板等。
该步骤可以顺次完成多个设定器件的当前温度值的获取操作，也可以并行完成多个设定器件的当前温度值的获取操作。
在步骤130中，根据每一设定器件的当前温度值，确定对应的充电功率。
该步骤120还可为：通过查找反映每一设定器件的温度值与充电功率之间对应关系的对照表，确定对应每一设定器件的当前温度值的充电功率。
该步骤可以顺次完成多个对应的充电功率的确定操作，也可以并行完成多个对应的充电功率的确定操作。
其中，电池的温度值与充电功率之间的对应关系例如为：
当电池的温度值为70℃以上，停止充电；当电池的温度值为50℃至70℃，充电功率为5W；当电池的温度值为40℃至50℃，充电功率为7.5W；当电池的温度值为30℃至40℃，充电功率为20W；当电池的温度值为30℃以下，充电功率为27W。
CPU温度或者主板温度与充电功率之间的对应关系例如为：
当CPU温度为70℃以上，充电功率为0W(即停止充电)；当CPU温度为55℃至70℃，充电功率为7.5W；当CPU温度为40℃至55℃，充电功率为20W；当CPU温度为40℃以下，充电功率为27W。
以上可按照相匹配的专用PD充电器能够支持的多种充电功率划分对应的温度段。
在步骤140中，在确定的所有充电功率中，选择最低的充电功率作为目标 充电功率。
例如，对应电池的当前温度值的充电功率为7.5W，对应CPU的当前温度值的充电功率为20W，对应主板的当前温度值的充电功率为27W，则选择7.5W作为目标充电功率。
在步骤150中，从PD充电器支持的所有电压和电流对中选择与目标充电功率相匹配的一个电压和电流对。
按照PD协议，PD充电器会将其支持的所有电压和电流对列表发送至电子设备一端，因此，电子设备一端可在该列表中选择一个电压和电流对作为请求PD充电器提供的充电电压和电流。
在针对多个设定器件、按照相匹配的专用PD充电器所支持的充电功率划分温度段的情况下，在步骤150中将能够选择到与目标充电器完成匹配的一个电压和电流对。如果找不到完成匹配的一个电压和电流对，则可以选择实现功率与目标充电功率最接近的一个电压和电流对。
在步骤160中，将选择的电压和电流对加载至充电请求消息的载荷部分发送至PD充电器。
PD充电器一端在接收到该充电请求消息后，会根据该充电请求消息确定请求的充电电压和电流，并根据该请求的充电电压和电流，调整充电器的输出电压和电流，进而根据多个设定器件发热情况实时调整充电功率。
本公开方法的另一种实施方式还增加了对电池的当前电量的考率，能够提高本公开方法对于电池健康度的有效维持作用。
图2是本公开充电功率调整方法的第二种实施方式的流程图。
图2中的步骤210至步骤260对应图1中的步骤110至步骤160，不同的是，在步骤220中，还获取电池的当前电量，进而在步骤230中不仅要根据每一设定器件的当前温度值确定对应的充电功率，还要根据当前电量确定对应的充电功率。
该当前电量可以从充电管理集成电路(Integrated Circuit，IC)处获得。
该根据当前电量确定对应的充电功率也可以通过查找反映电池电量与充电功率之间对应关系的对照表进行。
其中，当前电量与充电功率之间的对应关系例如为：当前电量为90％以下，充电功率为27W；当前电量为90％至95％之间，充电功率为7.5W；当前电量为95％以上，充电功率为20W。
上述步骤230中可以顺次完成对应的充电功率的确定操作，也可以并行完成对应的充电功率的确定操作。
为了提高充电安全性，进而有效保护电子设备和PD充电器不受损坏，本公开第三种实施方式还增加了对USB接口的发热情况的监控。
图3是本公开方法的第三种实施方式的流程图。
图中步骤310对应图1中的步骤110或者图2中的步骤210，图中步骤340至步骤380对应图1中的步骤120至步骤160或者图2中的步骤220至步骤260。
如图3所示，该实施方式还包括步骤320，获取USB接口的当前温度值。该步骤可为：接收安装在USB接口旁侧的温度传感器采集到的温度信号，并根据该温度信号确定USB接口的当前温度值。
所述方法还包括步骤330，判断该USB接口的当前温度值是否超过设定的温度上限，如该USB接口的当前温度值超过设定的温度上限，则断开电子设备与PD充电器之间的充电连接，这可以是控制充电管理电路实现。该温度上限例如在75℃-90℃之间选择，在本公开的一个实施例中，该温度上限设定为80℃。
在上述实施例的基础上，还可以增加预警步骤，即如果USB接口的当前温度值超过设定的预警温度值，则触发报警，该预警温度值应该低于上述温度上限，例如该预警温度值设定为70℃。
该触发报警例如包括触发声音、灯光、文字显示报警中的至少一种，以提醒用户当前温度过高，请及时断开电源。
本公开还提供了一种充电功率调整装置，图4是该装置的一种实施结构的方框原理图。
如图4所示，该装置400包括识别模块401、温度监测模块402、功率确定模块403、功率选择模块404和功率配置模块405。
上述识别模块401设置为识别插入USB接口的充电器是否为支持快速充电的PD充电器。
上述温度监测模块402设置为获取设定器件的当前温度值。
上述功率确定模块403设置为根据每一设定器件的当前温度值，确定对应的充电功率。
上述功率选择模块404设置为在功率确定模块403确定的所有充电功率中，选择最低的充电功率作为目标充电功率。
上述功率配置模块405设置为从PD充电器支持的所有电压和电流对中选择与所述目标充电功率相匹配的一个电压和电流对，并将选择的电压和电流对加载至充电请求消息的载荷部分发送至PD充电器。
本公开装置400还可以包括电量监测模块(图中未示出)，该电量监测模块，设置为获取电池的当前电量。对应地，上述功率确定模块404还可以设置为根据该当前电量确定对应的充电功率。
上述温度监测模块还可设置为获取USB接口的当前温度值。对应地，本公开装置400还包括充电控制模块(图中未示出)，该充电控制模块设置为在温度监测模块402监测到USB接口的当前温度值超过设定的温度上限的情况下，断开电子设备与PD充电器之间的充电连接。在此基础上，本公开装置400还可以包括预警模块，其设置为在USB接口的当前温度值超过设定的预警温度值时，触发报警。
本公开还提供了一种电子设备，该电子设备包括本公开的充电功率调整装置400。
图5为本公开电子设备的实施结构的方框原理图。
如图5所示，该电子设备500包括存储器501和处理器502，该存储器501设置为存储指令，该指令设置为控制处理器502进行操作以执行上述充电功率调整方法。
除此之外，如图5所示，该电子设备500还可以包括接口装置503、输入装置504、显示装置505、通信装置506、扬声器507、麦克风508、用于采集温度信号的温度传感器(图中未示出)等等。尽管在图5中示出了多个装置，但是，本公开电子设备可以仅涉及其中的部分装置，例如，处理器501、存储器502、接口装置503、温度传感器等。
上述通信装置506例如能够进行有有线或无线通信。
上述接口装置503例如包括耳机插孔、Type-C接口等，以使接口装置503的Type-C接口通过Type-C数据线与PD充电器建立连接。
上述输入装置504例如可以包括触摸屏、按键等。
上述显示装置505例如是液晶显示屏、触摸显示屏等。
本公开电子设备例如是手机、平板电脑等。
本说明书中的实施例均采用递进的方式描述，实施例之间相同相似的部分相互参见即可，每个实施例说明的都是与其他实施例的不同之处，但本领域技术人员应当清楚的是，上述实施例可以根据需要单独使用或者相互结合使用。另外，对于装置实施例而言，由于装置实施例是与方法实施例相对应，相关之处请参见方法实施例的对应部分的说明。以上所描述的系统实施例仅仅是示意性的，其中作为分离部件说明的模块可以是或者也可以不是物理上分开的。
本公开可以是装置、方法和/或计算机程序产品。计算机程序产品可以包括存储在非暂态计算机可读存储介质上的计算机程序，所述计算机程序包括程序指令，当所述程序指令被计算机执行时，使所述计算机执行上述任一实施例中的方法。
计算机可读存储介质可以是可以保持和存储由指令执行设备使用的指令的有形设备。计算机可读存储介质例如可以是但不限于电存储设备、磁存储设备、光存储设备、电磁存储设备、半导体存储设备或者上述的任意合适的组合。计算机可读存储介质的例子(非穷举的列表)包括：便携式计算机盘、硬盘、随机存取存储器(Random-Access Memory，RAM)、只读存储器(Read-only Memory ROM)、可擦式可编程只读存储器(Erasable Programmable Read Only Memory，EPROM)、闪存(Flash)、静态随机存取存储器(Static Random Access Memory，SRAM)、便携式压缩盘只读存储器(Compact Disc Read-Only Memory，CD-ROM)、数字多功能盘(Digital Versatile Disc，DVD)、记忆棒、软盘、机械编码设备、例如存储有指令的打孔卡以及上述的任意合适的组合。这里所使用的计算机可读存储介质不被解释为瞬时信号本身，诸如无线电波或者其他自由传播的电磁波、通过波导或其他传输媒介传播的电磁波(例如，通过光纤电缆的光脉冲)、或者通过电线传输的电信号。
这里所描述的计算机可读程序指令可以从计算机可读存储介质下载到多个计算/处理设备，或者通过网络、例如因特网、局域网、广域网和/或无线网下载 到外部计算机或外部存储设备。网络可以包括铜传输电缆、光纤传输、无线传输、路由器、防火墙、交换机、网关计算机和/或边缘服务器。每个计算/处理设备中的网络适配卡或者网络接口从网络接收计算机可读程序指令，并转发该计算机可读程序指令，以供存储在多个计算/处理设备中的计算机可读存储介质中。
用于执行本公开操作的计算机程序指令可以是汇编指令、指令集架构(Industry Standard Architecture，ISA)指令、机器指令、机器相关指令、微代码、固件指令、状态设置数据、或者以一种或多种编程语言的任意组合编写的源代码或目标代码，所述编程语言包括面向对象的编程语言-诸如Smalltalk、C++等，以及常规的过程式编程语言-诸如“C”语言或类似的编程语言。计算机可读程序指令可以完全地在用户计算机上执行、部分地在用户计算机上执行、作为一个独立的软件包执行、部分在用户计算机上部分在远程计算机上执行、或者完全在远程计算机或服务器上执行。在涉及远程计算机的情形中，远程计算机可以通过任意种类的网络包括局域网(Local Area Network，LAN)或广域网(Wide Area Network，WAN)连接到用户计算机，或者，可以连接到外部计算机(例如利用因特网服务提供商来通过因特网连接)。在一些实施例中，通过利用计算机可读程序指令的状态信息来个性化定制电子电路，例如可编程逻辑电路、现场可编程门阵列(Field-Programmable Gate Array，FPGA)或可编程逻辑阵列(Programmable Logic Array，PLA)，该电子电路可以执行计算机可读程序指令，从而实现本公开。
这里参照根据本公开实施例的方法、装置(系统)和计算机程序产品的流程图和/或框图描述了本公开。应当理解，流程图和/或框图的每个方框以及流程图和/或框图中方框的组合，都可以由计算机可读程序指令实现。
这些计算机可读程序指令可以提供给通用计算机、专用计算机或其它可编程数据处理装置的处理器，从而生产出一种机器，使得这些指令在通过计算机或其它可编程数据处理装置的处理器执行时，产生了实现流程图和/或框图中的一个或多个方框中规定的功能/动作的装置。也可以把这些计算机可读程序指令存储在计算机可读存储介质中，这些指令使得计算机、可编程数据处理装置和/或其他设备以特定方式工作，从而，存储有指令的计算机可读介质则包括一个制造品，包括实现流程图和/或框图中的一个或多个方框中规定的功能/动作的多个方面的指令。
也可以把计算机可读程序指令加载到计算机、其它可编程数据处理装置、或其它设备上，使得在计算机、其它可编程数据处理装置或其它设备上执行一系列操作步骤，以产生计算机实现的过程，从而使得在计算机、其它可编程数据处理装置、或其它设备上执行的指令实现流程图和/或框图中的一个或多个方框中规定的功能/动作。
附图中的流程图和框图显示了根据本公开的多个实施例的系统、方法和计算机程序产品的可能实现的体系架构、功能和操作。在这点上，流程图或框图中的每个方框可以代表一个模块、程序段或指令的一部分，所述模块、程序段或指令的一部分包含一个或多个用于实现规定的逻辑功能的可执行指令。在有些作为替换的实现中，方框中所标注的功能也可以以不同于附图中所标注的顺序发生。例如，两个连续的方框实际上可以基本并行地执行，它们有时也可以按相反的顺序执行，这依所涉及的功能而定。也要注意的是，框图和/或流程图中的每个方框、以及框图和/或流程图中的方框的组合，可以用执行规定的功能或动作的专用的基于硬件的系统来实现，或者可以用专用硬件与计算机指令的组合来实现。对于本领域技术人员来说公知的是，通过硬件方式实现、通过软件方式实现以及通过软件和硬件结合的方式实现都是等价的。
工业实用性
本公开实施例提供的充电功率调整方法、装置及电子设备，根据器件发热情况实时调整充电功率，提高了充电安全性及器件健康度。

Claims (12)

  1. 一种充电功率调整方法，应用于电子设备，包括：
    识别插入通用串行总线USB接口的充电器是否为支持快速充电的快速充电PD充电器，如插入USB接口的充电器是支持快速充电的PD充电器，则：
    获取设定器件的当前温度值；
    根据每一设定器件的当前温度值，确定对应的充电功率；
    在确定的所有充电功率中，选择最低的充电功率作为目标充电功率；
    从所述PD充电器支持的所有电压和电流对中选择与所述目标充电功率相匹配的一个电压和电流对；以及
    将选择的电压和电流对加载至充电请求消息的载荷部分发送至所述PD充电器。
  2. 根据权利要求1所述的方法，其中，所述设定器件包括电池。
  3. 根据权利要求1所述的方法，所述方法还包括：
    获取电池的当前电量；以及
    根据每一设定器件的当前温度值确定对应的充电功率以及所述当前电量确定对应的充电功率。
  4. 根据权利要求1、2或3中任一项所述的方法，所述方法还包括：
    获取USB接口的当前温度值；以及
    如果所述USB接口的当前温度值超过设定的温度上限，则断开电子设备与PD充电器之间的充电连接。
  5. 根据权利要求4所述的方法，所述方法还包括：
    如果所述USB接口的当前温度值超过设定的预警温度值，则触发报警，其中，所述预警温度值低于所述温度上限。
  6. 一种充电功率调整装置，包括：
    识别模块，设置为识别插入USB接口的充电器是否为支持快速充电的PD充电器；
    温度监测模块，设置为获取设定器件的当前温度值；
    功率确定模块，设置为根据每一设定器件的当前温度值，确定对应的充电功率；
    功率选择模块，设置为在所述功率确定模块确定的所有充电功率中，选择最低的充电功率作为目标充电功率；以及，
    功率配置模块，设置为从所述PD充电器支持的所有电压和电流对中选择与所述目标充电功率相匹配的一个电压和电流对，并将选择的电压和电流对加载至充电请求消息的载荷部分发送至所述PD充电器。
  7. 根据权利要求6所述的装置，所述装置还包括：
    电量监测模块，设置为获取电池的当前电量；以及
    所述功率确定模块还设置为根据所述当前电量确定对应的充电功率。
  8. 根据权利要求6或7所述的装置，其中，所述温度监测模块还设置为获取USB接口的当前温度值；所述装置还包括：
    充电控制模块，设置为在所述温度监测模块监测到USB接口的当前温度值超过设定的温度上限的情况下，断开电子设备与PD充电器之间的充电连接。
  9. 一种电子设备，包括权利要求6、7或8所述的装置。
  10. 一种电子设备，包括接口装置、存储器和处理器，所述接口装置设置为通过Type-C数据线与充电器建立连接，所述存储器设置为存储指令，所述指令设置为控制所述处理器进行操作以执行根据权利要求1至5中任一项所述的方法。
  11. 一种非暂态计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令用于使所述计算机执行如权利要求1-5任一项所述的方法。
  12. 一种计算机程序产品，所述计算机程序产品包括存储在非暂态计算机可读存储介质上的计算机程序，所述计算机程序包括程序指令，当所述程序指令被计算机执行时，使所述计算机执行权利要求1-5所述的方法。
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