CN111245070B

CN111245070B - Quick charge control method, device, equipment and storage medium

Info

Publication number: CN111245070B
Application number: CN202010218831.1A
Authority: CN
Inventors: 于旸; 马卓; 黎烨; 戴戈
Original assignee: Tencent Technology Shenzhen Co Ltd
Current assignee: Tencent Technology Shenzhen Co Ltd
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2022-05-20
Anticipated expiration: 2040-03-25
Also published as: CN111245070A

Abstract

The embodiment of the application discloses a quick charge control method, a quick charge control device, quick charge control equipment and a storage medium, wherein the method comprises the following steps: the method comprises the steps of firstly obtaining power supply capacity information sent by power supply equipment and the maximum charging power of the powered equipment, and determining target power supply information of the powered equipment according to the maximum charging power and the power supply capacity information of the powered equipment. And then, target power supply information is sent to the power supply equipment, whether the actual power supply information output by the power supply equipment is matched with the target power supply information or not is detected according to the target power supply information, and a power supply detection result is obtained, so that when the power supply detection result represents that the actual power supply information is not matched with the target power supply information, the power supply equipment is disconnected from supplying power to the power receiving equipment. Therefore, when the charging controller determines that the actual power supply information and the target power supply information are unsuccessfully matched, the charging controller directly controls the powered device to disconnect charging, so that the situation that the circuit of the powered device is damaged due to abnormal power supply of the power supply device can be effectively avoided, and the charging safety of the powered device is improved.

Description

Quick charge control method, device, equipment and storage medium

Technical Field

The present application relates to the field of charging technologies, and in particular, to a method, an apparatus, a device, and a storage medium for controlling fast charging.

Background

In order to solve the contradiction between the slow charging speed of the conventional charging technology and the increasing power demand of the mobile device, a fast charging technology is proposed to enable the powered device to obtain a higher charging power from the power supply device.

Currently, the charging process based on the fast charging technology may include: after the power receiving apparatus receives the power supply capability information transmitted by the power supply apparatus, the power receiving apparatus selects a power supply capability acceptable to the power receiving apparatus from the power supply capability information to cause the power supply apparatus to supply power to the power receiving apparatus in accordance with the power supply capability selected by the power receiving apparatus. The power supply capacity refers to a power supply gear which can be provided by the power supply equipment for the powered equipment through the fast charging protocol.

However, in some cases, the power supply device does not supply power according to the power supply capability selected by the powered device, so that the power supply device provides power supply power exceeding the maximum input power acceptable by the powered device, which may cause damage to the circuitry of the powered device.

Disclosure of Invention

The embodiment of the application provides a quick charge control method, a quick charge control device, equipment and a storage medium, which can effectively improve the charge safety of powered equipment.

In view of the above, a first aspect of the present application provides a fast charging control method applied to a charging controller, including:

acquiring power supply capacity information sent by power supply equipment and the maximum charging power of powered equipment;

determining target power supply information of the powered device according to the power supply capacity information and the maximum charging power of the powered device; wherein the target power supply information comprises a target power supply voltage and a target power supply current;

transmitting the target power supply information to the power supply device;

detecting whether actual power supply information output by the power supply equipment is matched with the target power supply information or not according to the target power supply information to obtain a power supply detection result; the actual power supply information comprises actual power supply voltage and actual power supply current;

and when the power supply detection result represents that the actual power supply information and the target power supply information are failed to be matched, the power supply equipment is disconnected from supplying power to the power receiving equipment.

The second aspect of the present application provides a quick charge control device, including:

an information acquisition unit configured to acquire power supply capability information transmitted by a power supply apparatus and a maximum charging power of a power receiving apparatus;

an information determination unit configured to determine target power supply information of a powered device according to a maximum charging power of the powered device and the power supply capability information; wherein the target power supply information comprises a target power supply voltage and a target power supply current;

a first sending unit, configured to send the target power supply information to the power supply device;

the power supply detection unit is used for detecting whether the actual power supply information output by the power supply equipment is matched with the target power supply information or not according to the target power supply information to obtain a power supply detection result; the actual power supply information comprises actual power supply voltage and actual power supply current;

and the power supply disconnection unit is used for disconnecting the power supply of the power supply equipment to the power receiving equipment when the power supply detection result represents that the actual power supply information is failed to be matched with the target power supply information.

A third aspect of the present application provides a quick charge control system, including: a charge controller;

the charging controller is used for acquiring power supply capacity information sent by the power supply equipment and the maximum charging power of the powered equipment;

the charging controller is further configured to determine target power supply information of the powered device according to the power supply capability information and the maximum charging power of the powered device; wherein the target power supply information comprises a target power supply voltage and a target power supply current;

the charging controller is further configured to send the target power supply information to the power supply device;

the charging controller is further configured to detect whether actual power supply information output by the power supply device is matched with the target power supply information according to the target power supply information, so as to obtain a power supply detection result; the actual power supply information comprises actual power supply voltage and actual power supply current;

the charging controller is further configured to disconnect power supply from the power supply device to a powered device when the power supply detection result indicates that the actual power supply information fails to match the target power supply information.

A fourth aspect of the present application provides an apparatus comprising a processor and a memory:

the memory is used for storing a computer program;

the processor is configured to execute the fast charge control method according to the first aspect.

A fifth aspect of the present application provides a computer-readable storage medium for storing a computer program for executing the quick charge control method according to the first aspect.

A sixth aspect of the present application provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the fast charge control method of the first aspect described above.

According to the technical scheme, the embodiment of the application has the following advantages:

in the fast charging control method provided in the embodiment of the present application, first, the charging controller obtains power supply capability information sent by the power supply device and the maximum charging power of the powered device, and determines target power supply information of the powered device according to the maximum charging power and the power supply capability information of the powered device. Then, the charging controller sends the target power supply information to the power supply equipment, and detects whether the actual power supply information output by the power supply equipment is matched with the target power supply information according to the target power supply information to obtain a power supply detection result, so that when the power supply detection result represents that the actual power supply information is not matched with the target power supply information, the power supply of the power supply equipment to the power receiving equipment is cut off. The target power supply information comprises a target power supply voltage and a target power supply current; the actual supply information includes an actual supply voltage and an actual supply current.

Therefore, when the power supply equipment starts to supply power to the power receiving equipment, the charging controller can firstly judge whether the actual power supply information is matched with the target power supply information, so that when the matching is determined to fail, the power supply equipment is determined to supply abnormal power to the power receiving equipment, at the moment, the charging controller can directly control the power receiving equipment not to receive the power supply of the power supply equipment, namely, the power supply of the power supply equipment to the power receiving equipment is cut off, so that the power receiving equipment cannot receive the abnormal power supply of the power supply equipment, the circuit of the power receiving equipment can be effectively prevented from being damaged due to the abnormal power supply of the power supply equipment (for example, the power supply power of the power supply equipment exceeds the maximum input power of the power receiving equipment), and the charging safety of the power receiving equipment can be effectively improved.

Drawings

Fig. 1 is a schematic view of an application scenario of a fast charging control method according to an embodiment of the present application;

fig. 2 is a schematic view of another application scenario of the fast charge control method according to the embodiment of the present application;

fig. 3 is a schematic flowchart of a fast charging control method according to an embodiment of the present disclosure;

fig. 4 is a flowchart of another fast charge control method according to an embodiment of the present application;

fig. 5 is a flowchart of another fast charge control method according to an embodiment of the present application;

fig. 6 is a schematic diagram of a fast charging process of a powered device according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a fast charging control system according to an embodiment of the present disclosure;

fig. 8 is a schematic structural diagram of another fast charge control system according to an embodiment of the present disclosure;

fig. 9 is a schematic structural diagram of another fast charge control system according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of a fast charging control apparatus according to an embodiment of the present disclosure;

fig. 11 is a schematic structural diagram of another fast charge control device according to an embodiment of the present disclosure;

fig. 12 is a schematic structural diagram of another fast charge control device according to an embodiment of the present disclosure;

fig. 13 is a schematic structural diagram of another fast charge control device according to an embodiment of the present disclosure;

fig. 14 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

fig. 15 is a schematic structural diagram of a server according to an embodiment of the present application.

Detailed Description

In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the related art, the charging process based on the fast charging technology may specifically be: after the power receiving apparatus receives the power supply capability information transmitted by the power supply apparatus, the power receiving apparatus selects a target power supply capability acceptable to the power receiving apparatus from the power supply capability information, and feeds back the target power supply capability to the power supply apparatus, so that the power supply apparatus can supply power to the power receiving apparatus according to the target power supply capability.

However, the inventors found in the above-described related art studies that: in the above charging process, the power receiving apparatus only notifies the power supply apparatus of the selected target power supply capability, and does not detect whether the power supply apparatus supplies power to the power receiving apparatus according to the target power supply capability. That is, when the power supply apparatus starts supplying power, the power receiving apparatus directly receives power supplied by the power supply apparatus in accordance with any power supply capability. It can be seen that when a charging device (e.g., a malicious charging device) outputs a high voltage or a high current far higher than a target power supply capability, the powered device does not detect the difference in the power supply capabilities, but directly receives the power supply from the power supply device at the high voltage or the high current, which may cause direct damage to the circuit of the powered device. Therefore, the charging process has potential safety hazards which can cause the circuit of the powered device to be damaged, and the charging safety of the powered device is reduced.

In view of the technical problems in the related art, an embodiment of the present application further provides a fast charging control method, which can effectively solve the above potential safety hazard, thereby improving charging safety of a powered device.

Specifically, in the fast charging control method provided in the embodiment of the present application, first, the charging controller obtains the power supply capability information sent by the power supply apparatus and the maximum charging power of the powered apparatus, and determines the target power supply information of the powered apparatus according to the maximum charging power and the power supply capability information of the powered apparatus. Then, the charging controller sends the target power supply information to the power supply equipment, and detects whether the actual power supply information output by the power supply equipment is matched with the target power supply information according to the target power supply information to obtain a power supply detection result, so that when the power supply detection result represents that the actual power supply information is not matched with the target power supply information, the power supply of the power supply equipment to the power receiving equipment is cut off. The target power supply information comprises a target power supply voltage and a target power supply current; the actual power supply information is used to indicate power supply information when the power supply apparatus supplies power to the power receiving apparatus; the actual supply information includes an actual supply voltage and an actual supply current.

Therefore, when the power supply equipment starts to supply power to the power receiving equipment, the charging controller can firstly judge whether the actual power supply information is matched with the target power supply information, so that when the matching is determined to fail, the power supply equipment is determined to supply power to the power receiving equipment abnormally, at the moment, the charging controller can directly control the power receiving equipment not to receive the power supply of the power supply equipment, namely, the power supply equipment is disconnected from supplying power to the power receiving equipment, so that the power receiving equipment cannot receive the abnormal power supply of the power supply equipment, the circuit of the power receiving equipment can be effectively prevented from being damaged due to the abnormal power supply (such as high-voltage or high-current power supply of the power supply equipment), and the charging safety of the power receiving equipment can be effectively improved.

It should be understood that the fast charging control method provided by the embodiment of the present application may be applied to data processing devices, such as terminal devices, servers, and the like; the terminal device may be a smart phone, a computer, a Personal Digital Assistant (PDA), a tablet pc, a controller on an electric device with a battery, or the like; the server may specifically be an application server or a Web server, and in actual deployment, the server may be an independent server or a cluster server.

If the rapid charging control method provided by the embodiment of the application is executed by the terminal device, the terminal device may determine the target power supply information based on the power supply capability information, and disconnect charging after detecting that the power supply device performs abnormal power supply according to the target power supply information. If the rapid charging control method provided by the embodiment of the application is executed by the server, the server may determine the target power supply information based on the power supply capability information, and directly send the detection result to the terminal device after detecting that the power supply device performs abnormal power supply according to the target power supply information, so that the terminal device is disconnected from charging.

In order to facilitate understanding of the technical solutions provided in the embodiments of the present application, an application scenario in which the fast charge control method provided in the embodiments of the present application is applied to a terminal device is exemplarily described below.

Referring to fig. 1, fig. 1 is a schematic view of an application scenario of a fast charging control method provided in an embodiment of the present application. As shown in fig. 1, the application scenario includes: a terminal apparatus 101 (i.e., a power receiving apparatus) and a power supply apparatus 102; the terminal device 101 and the power supply device 102 are connected through a fast charging cable.

After the terminal device 101 acquires the power supply capability information sent by the power supply device 102, the terminal device 101 may first determine target power supply information of the powered device according to the maximum charging power and the power supply capability information of the powered device, and send the target power supply information to the power supply device 102; and then, according to the target power supply information, detecting whether the actual power supply information output by the power supply equipment is matched with the target power supply information to obtain a power supply detection result, so that when the power supply detection result represents that the actual power supply information is failed to be matched with the target power supply information, the power supply of the power supply equipment 102 is not accepted, namely, the charging is disconnected. The target power supply information comprises a target power supply voltage and a target power supply current; the actual power supply information is used to indicate power supply information when the power supply apparatus 102 supplies power to the terminal apparatus 101; the actual supply information includes an actual supply voltage and an actual supply current.

It should be understood that, in practical applications, the power supply device 102 may be any device capable of charging the terminal device 101, for example, the power supply device 102 may be a charger. As another example, when the terminal device 101 is an electronic device (e.g., a cell phone, etc.), the power supply device 102 may be another electronic device (e.g., a notebook, etc.) capable of functioning as a charger.

It should be understood that, in practical applications, the fast charging control method provided in the embodiment of the present application may also be applied to a server, see fig. 2, which is another application scenario diagram of the fast charging control method provided in the embodiment of the present application. As shown in fig. 2, the server 201 can obtain the maximum charging power of the power receiving device and the power supply capability information of the power supply device after receiving the power supply detection request sent by the terminal device 202 (that is, the power receiving device), determine the target power supply information of the power receiving device according to the maximum charging power and the power supply capability information of the power receiving device, and detect whether the actual power supply information output by the power supply device matches the target power supply information according to the target power supply information to obtain a power supply detection result, so that the server 201 feeds the power supply detection result back to the terminal device 202, so that the terminal device 202 does not receive the power supply of the power supply device 203, that is, disconnects the charging when it is determined that the actual power supply information fails to match the target power supply information according to the power supply detection result.

It should be understood that the application scenarios shown in fig. 1 and fig. 2 are only examples, and in practical applications, the fast charging control method provided in the embodiment of the present application may also be applied to other application scenarios for performing charging, and the fast charging control method provided in the embodiment of the present application is not limited in any way here.

The following describes a fast charge control method provided by the present application by way of example.

Method embodiment one

Referring to fig. 3, fig. 3 is a schematic flowchart of a fast charging control method according to an embodiment of the present disclosure. For convenience of description, the following embodiments will be described taking as an example a charging controller as an execution subject of the rapid charging control method. As shown in fig. 3, the fast charge control method includes S301 to S306:

s301: the charging controller acquires power supply capability information transmitted by the power supply apparatus and a maximum charging power of the power receiving apparatus.

The charging controller is used for controlling the charging process of the powered device; furthermore, the embodiment of the present application does not limit the relationship between the charging controller and the powered device, and for example, the charging controller may be located in the powered device or may be independent of the powered device. The powered device is used to mean a device with a battery (especially, a lithium battery), and the embodiment of the present application is not limited to the powered device, and for example, the powered device may be an electronic device (e.g., a mobile phone, a notebook, etc.) or an electric vehicle (e.g., an electric automobile, an electric tricycle, etc.).

The power supply apparatus is used to supply power to the power receiving apparatus, and the power supply apparatus generally includes at least two power supply capabilities. The power supply capacity refers to a power supply gear which can be provided for the powered device by the power supply device through a fast charging protocol, and each power supply capacity includes two kinds of power supply information, namely power supply voltage and power supply current. For example, the power supply device has a first power supply capability and a second power supply capability, the power supply voltage of the first power supply capability is 5V, and the power supply current is 1A; the supply voltage of the second supply capability is 6V and the supply current is 3A.

The power supply capability information is used for recording relevant information of all power supply capabilities which can be provided for the power receiving equipment by the power supply equipment through the quick charging protocol. For example, if the power supply apparatus has the first power supply capability and the second power supply capability, the power supply capability information includes information on the first power supply capability and the second power supply capability.

The maximum charging power is used to characterize the maximum input power that the powered device can accept without damaging the powered device. In addition, the embodiment of the present application does not limit the obtaining manner of the maximum charging power, for example, the charging controller may read from its own storage space, or may read from another storage space in the power receiving device.

In this application embodiment, after being connected through the fast charge cable between powered device and the power supply equipment, power supply equipment can send power supply capacity information to powered device through the fast charge cable, and charge controller can acquire the maximum charging power of powered device from presetting storage space to follow-up charge controller can select the target power supply capacity that is applicable to powered device from the power supply capacity that powered device has according to the maximum charging power of powered device. The target power supply capability refers to power supply capability, which is selected from the power supply capability information by the power receiving apparatus and is suitable for the power supply apparatus to charge the power receiving apparatus.

The embodiment of the present application does not limit the manner in which the charging controller acquires the power supply capability information, and for example, the charging controller may acquire the power supply capability information from the power receiving apparatus or may directly receive the power supply capability information transmitted by the power supplying apparatus.

S302: the charging controller determines target power supply information of the powered device according to the maximum charging power and the power supply capability information of the powered device.

The target power supply information is used for representing relevant information of the target power supply capacity selected by the powered device from the power supply capacity information; also, the target power supply information includes a target power supply voltage and a target power supply current.

Based on the above, in the embodiment of the present application, after the charging controller acquires the power supply capability information sent by the power supply apparatus, the charging controller can determine the target power supply information of the power receiving apparatus according to the maximum charging power and the power supply capability information of the power receiving apparatus, so that the target power calculated based on the target power supply voltage and the target power supply current in the target power supply information is not higher than the maximum charging power of the power receiving apparatus, which can effectively ensure that the power receiving apparatus can perform safe charging.

S303: the charge controller transmits target power supply information to the power supply device.

In this application embodiment, after the charge controller determines the target power supply information, the charge controller can feed back the target power supply information to the power supply unit, so that the power supply unit can acquire the power supply information suitable for the powered device, and the power supply unit can supply power to the powered device according to the target power supply information fed back by the powered device.

S304: and the charging controller detects whether the actual power supply information output by the power supply equipment is matched with the target power supply information according to the target power supply information to obtain a power supply detection result.

And the power supply detection result is used for representing whether the actual power supply information is matched with the target power supply information.

The actual power supply information is used to indicate power supply information when the power supply apparatus supplies power to the power receiving apparatus; the actual supply information includes an actual supply voltage and an actual supply current.

In addition, the embodiment of the present application is not limited to the implementation in which the charging controller acquires the actual power supply information, and for example, the charging controller may acquire the actual power supply information from another functional unit (e.g., a charging information acquisition unit) in the powered device. The following description is made with reference to examples.

As an example, when the powered device includes the charging information collecting unit, S304 may specifically be: and detecting whether the actual power supply information output by the power supply equipment is matched with the target power supply information or not according to the target power supply information and the actual power supply information sent by the charging information acquisition unit to obtain a power supply detection result. The electric information acquisition unit is used for acquiring actual power supply information when the power supply equipment supplies power to the powered equipment, and can comprise voltage acquisition equipment and current acquisition equipment.

Based on the above example content, in the embodiment of the application, after the charging information acquisition unit acquires the actual power supply information, the charging information acquisition unit first sends the actual power supply information to the charging controller, so that the charging controller can detect whether the target power supply information is matched with the received actual power supply information according to the actual power supply information and the target power supply information, and obtain the power supply detection result.

Based on the above, in the embodiment of the present application, when the power supply device starts to supply power to the power receiving device, the charging controller may first detect whether the actual power supply information of the power supply device matches the target power supply information, and if so, determine that the power supply device is supplying power to the power receiving device normally, and at this time, may determine that the circuit of the power receiving device is not damaged in the charging process, so the charging controller controls the power receiving device to receive power supply from the power supply device; if not, the power supply device determines that abnormal power supply is being performed to the power receiving device, and at this time, it may be determined that the circuit of the power receiving device may be damaged in the charging process, and at this time, the charging controller controls the power receiving device not to receive power supply from the power supply device, that is, to disconnect power supply from the power supply device to the power receiving device.

S305: and when the power supply detection result represents that the actual power supply information is successfully matched with the target power supply information, the charging controller controls the power receiving equipment to receive power supply of the power supply equipment.

S306: and when the power supply detection result represents that the actual power supply information is failed to be matched with the target power supply information, the charging controller disconnects the power supply from the power supply equipment to the power receiving equipment.

It should be noted that the embodiments of the present application are not limited to the specific implementation in which the charging controller disconnects the power supply from the power supply device to the power receiving device, and for example, the charging controller may be implemented by resetting the charging state of the power receiving device.

As can be seen from the above-mentioned related contents of S301 to S306, in the fast charge control method provided in the embodiment of the present application, first, the charge controller obtains the power supply capability information sent by the power supply apparatus and the maximum charging power of the powered apparatus, and determines the target power supply information of the powered apparatus according to the maximum charging power and the power supply capability information of the powered apparatus. Then, the charging controller sends the target power supply information to the power supply equipment, and detects whether the actual power supply information output by the power supply equipment is matched with the target power supply information according to the target power supply information to obtain a power supply detection result, so that when the power supply detection result represents that the actual power supply information is not matched with the target power supply information, the power supply of the power supply equipment to the power receiving equipment is cut off. The target power supply information comprises a target power supply voltage and a target power supply current; the actual supply information includes an actual supply voltage and an actual supply current.

In addition, in order to be able to better detect whether the power supply apparatus normally supplies power to the power receiving apparatus, a charge protection unit may be added to the power receiving apparatus so that the charge controller can detect whether the power supply apparatus normally supplies power by means of the charge protection circuit. Based on this, the present application embodiment further provides an implementation manner of the fast charging control method, and the following is specifically described with reference to method embodiment two.

Method embodiment two

For the sake of brevity, the second method embodiment is an improvement based on the first method embodiment, and details of the second method embodiment and the first method embodiment are not repeated herein.

Referring to fig. 4, this figure is a flowchart of another fast charging control method provided in the embodiment of the present application. As shown in fig. 4, the fast charge control method includes S401 to S409:

s401: the charging controller acquires power supply capability information transmitted by the power supply apparatus and a maximum charging power of the power receiving apparatus.

Note that the content of S401 is the same as that of S301 above, please refer to S301 above.

S402: the charging controller determines target power supply information of the powered device according to the maximum charging power and the power supply capability information of the powered device.

It should be noted that the content of S401 is the same as that of S302 above, please refer to S302 above.

S403: the charge controller transmits target power supply information to the power supply device.

Note that the content of S403 is the same as that of S303 above, please refer to S303 above.

It should be noted that the embodiment of the present application does not limit the execution time of S403, and S403 may be completed after S402 and before S406.

S404: the charging controller transmits target power supply information to the charging protection unit.

The charging protection unit is used for protecting the charging safety of the powered device; moreover, the charging protection unit can perform parameter adjustment according to the target power supply information sent by the charging controller, so that the adjusted charging protection unit can protect the powered device according to the target power supply information.

It should be noted that, when the charging controller is located in the powered device, the embodiment of the present application does not limit the relationship between the charging protection unit and the charging controller, and the charging protection unit may be independent from the charging controller or may be integrated on the charging controller.

In one possible implementation, the charge protection unit may include a voltage protection circuit and a current protection circuit, and the voltage protection circuit is connected in series with the current protection circuit.

The voltage protection circuit is used for limiting the upper charging voltage limit of the powered device during charging so that only the power supply voltage lower than the upper charging voltage limit can be accepted during charging of the powered device. In addition, the charge protection unit can adjust circuit parameters of the voltage protection circuit based on the voltage information (for example, voltage information such as a target power supply voltage) transmitted by the charge controller, so that the adjusted voltage protection circuit protects the power receiving apparatus according to the voltage information transmitted by the charge controller.

The current protection circuit is used for limiting the upper limit of the charging current of the powered device in the charging process, so that only the power supply current lower than the upper limit of the charging current can be accepted in the charging process of the powered device. In addition, the charging protection unit can adjust circuit parameters of the current protection circuit based on current information (e.g., current information such as a target supply current) transmitted by the charging controller, so that the adjusted current protection circuit protects the power receiving device according to the current information transmitted by the charging controller.

It should be noted that, the installation position of the charging protection unit is not limited in the embodiments of the present application, for example, when the charging controller is located in the power receiving device, the charging protection unit may be installed between the cable connector of the power receiving device and the charging controller, so that the charging protection unit can timely detect whether the power supply device is performing normal power supply to the power receiving device. In addition, the embodiment of the application also does not limit the structure of the voltage protection circuit and the structure of the current protection circuit, the voltage protection circuit can adopt any circuit structure with adjustable parameters and capable of realizing voltage protection, and the current protection circuit can also adopt any circuit structure with adjustable parameters and capable of realizing current protection.

Based on the above, in the powered device, after the charging controller determines the target power supply information, the charging controller may send the target power supply information to the charging protection unit, so that the charging protection unit can protect the powered device according to the target power supply information.

S405: and the charging protection unit sets the charging protection parameters of the charging protection unit according to the target power supply information.

The charging protection parameter refers to a unit internal parameter set by the charging protection unit according to the target power supply information, so that the charging protection unit can protect the powered device according to the target power supply information.

The charge protection parameters include a protection voltage upper limit and a protection current upper limit. Wherein, the upper protection voltage limit is used for representing the maximum voltage capable of passing through the charging protection unit; the protection current upper limit is used to represent the maximum current that can pass through the charge protection unit.

In addition, the embodiment of the present application does not limit the communication method between the charging protection unit and the charging controller, for example, the charging protection unit and the charging controller may communicate with each other through an I2C bus, a Serial Peripheral Interface (SPI), or the like.

In a possible implementation manner, when the charging protection unit includes a voltage protection circuit and a current protection circuit, S405 may specifically be: the charging protection unit sets the upper limit of the protection voltage of the voltage protection circuit according to the target power supply voltage, and sets the upper limit of the protection current of the current protection circuit according to the target power supply current.

In this embodiment, after the charging protection unit receives the target power supply information sent by the charging controller, the charging protection unit may set a protection voltage upper limit of the voltage protection circuit according to the target power supply voltage, so that the set voltage protection circuit can limit the power supply voltage of the power supply device to be less than or equal to the protection voltage upper limit, thereby enabling the set charging protection unit to protect the power receiving device according to the target power supply voltage. Similarly, the charging protection unit may also set the upper protection current limit of the current protection circuit according to the target power supply current, so that the set current protection circuit can limit the power supply current of the power supply device to be less than or equal to the upper protection current limit, and thus, the charging protection unit after setting can protect the power receiving device according to the target power supply current.

Based on the above, in the powered device, the charging protection unit sets the charging protection parameter of the charging protection unit according to the target power supply information, so that the set charging protection unit can protect the charging process of the powered device according to the target power supply information.

S406: the charging protection unit judges whether the actual power supply information meets the charging protection parameters or not to obtain a judgment result.

The judgment result is used for representing whether the actual power supply information meets the charging protection parameter, and the judgment result can be used for judging whether the actual power supply information meets the charging protection parameter or not and can also be used for judging whether the actual power supply information does not meet the charging protection parameter or not.

In addition, an embodiment of the present application further provides a specific implementation manner of obtaining the determination result (that is, S406), in this implementation manner, when the charging protection unit includes a voltage protection circuit and a current protection circuit, S406 may specifically be: if the voltage protection circuit determines that the actual power supply voltage is lower than the upper limit of the protection voltage and the current protection circuit determines that the actual power supply current is lower than the upper limit of the protection current, the charging protection unit determines that the actual power supply information meets the charging protection parameters of the charging protection unit according to the judgment result; if the voltage protection circuit determines that the actual power supply voltage is higher than the upper protection voltage limit or the current protection circuit determines that the actual power supply current is higher than the upper protection current limit, the charging protection unit determines that the judgment result is that the actual power supply information does not meet the charging protection parameters of the charging protection unit.

In this embodiment, when the power supply apparatus starts to supply power to the power receiving apparatus, the voltage protection circuit in the power receiving apparatus may detect whether the actual power supply voltage is higher than the target power supply voltage, and the current protection circuit in the power receiving apparatus may detect whether the actual power supply current is higher than the target power supply current, so that the charge protection unit can determine that the actual power supply information does not satisfy the charge protection parameter of the charge protection unit when it is determined that the actual power supply voltage is higher than the upper protection voltage limit or that the actual power supply current is higher than the upper protection current limit; and when the actual power supply voltage is determined to be lower than the upper limit of the protection voltage and the actual power supply current is determined to be lower than the upper limit of the protection current, the charging protection unit can determine that the judgment result is that the actual power supply information meets the charging protection parameters of the charging protection unit. Therefore, the subsequent charging controller can further determine whether the actual power supply information is matched with the target power supply information according to the judgment result.

S407: and the charging controller detects whether the actual power supply information output by the power supply equipment is matched with the target power supply information according to the judgment result sent by the charging protection unit to obtain a power supply detection result.

In the embodiment of the present application, the determination result sent by the charging protection unit is positively correlated with the matching result determined by the charging controller, and specifically, the determination result is: if the judgment result is that the actual power supply information meets the charging protection parameters of the charging protection unit, the charging controller can determine that the actual power supply information is matched with the target power supply information, and at the moment, the charging controller can control the power receiving equipment to receive power supply of the power supply equipment; if the determination result is that the actual power supply information does not satisfy the charging protection parameter of the charging protection unit, the charging controller can determine that the actual power supply information does not match the target power supply information, and at this time, the charging controller can control the powered device not to receive power supply of the power supply device, that is, disconnect the charging connection of the powered device.

S408: and when the power supply detection result represents that the actual power supply information is successfully matched with the target power supply information, the charging controller controls the power receiving equipment to receive power supply of the power supply equipment.

It should be noted that the content of S408 is the same as that of S305 above, please refer to S305 above.

S409: and when the power supply detection result represents that the actual power supply information is failed to be matched with the target power supply information, the charging controller disconnects the power supply from the power supply equipment to the power receiving equipment.

It should be noted that the content of S409 is the same as that of S306 above, please refer to S306 above.

Based on the contents of S401 to S409, in the embodiment of the present application, a charging protection unit may be added to the powered device, so that during the charging process of the powered device, the charging controller can detect whether the power supply device is performing abnormal power supply to the powered device by using the charging protection unit, which is specifically: when the power supply equipment supplies high-voltage power, the voltage protection circuit with the target voltage upper limit can accurately determine that the actual power supply voltage is higher than the target power supply voltage, the voltage protection circuit does not allow the power supply of the power supply equipment to pass at the moment, and reports the voltage detection result to the controller, so that the controller can timely control the power receiving equipment to reject the power supply of the power supply equipment; similarly, when the power supply device supplies high-current power, the current protection circuit with the target current upper limit can accurately determine that the actual power supply current is higher than the target power supply current, and at the moment, the current protection circuit does not allow the power supply of the power supply device to pass through, and reports the current detection result to the controller, so that the controller can timely control the power receiving device to refuse to accept the power supply of the power supply device. Therefore, the damage of the high-voltage power supply and the high-current power supply to the circuit of the power receiving equipment can be effectively avoided, and the safety of the power receiving equipment can be effectively improved.

Method example III

In some cases, the power supply apparatus may not be able to supply power according to the target power supply information due to a temporary failure, and in this case, in order to smoothly supply power to the power receiving apparatus, the power receiving apparatus may negotiate power supply with the power supply apparatus again after the power receiving apparatus refuses to accept power supply by the power supply apparatus. Based on this, the present application provides another implementation of the fast charge control method, in this implementation, as shown in fig. 5, in addition to the above S401 to S409, the fast charge control method may further include the following S410 to S411:

s410: when the power supply detection result represents that the actual power supply information and the target power supply information are unsuccessfully matched, the charging controller sends the safe charging parameters of the powered device to the charging protection unit, so that the charging protection unit sets the initial protection parameters of the charging protection unit according to the safe charging parameters.

The safe charging parameter is used for representing relevant information that the powered device can be safely charged; and the safe charging parameters include a safe voltage threshold and a safe current threshold.

It should be noted that the safe charging parameter is pre-configured in the powered device, and the charging controller may read the safe charging parameter from the storage space of the powered device.

The initial protection parameter refers to a unit internal parameter set by the charging unit according to the safe charging parameter, so that the charging protection unit can protect the powered device according to the initial protection parameter.

The initial protection parameters include a safe upper voltage limit and a safe upper current limit. Wherein, the safe upper voltage limit is used for representing the maximum voltage capable of passing through the charging protection unit; the safe upper current limit is used to represent the maximum current that can pass through the charge protection unit. It should be noted that the setting process of the initial protection parameter is similar to the setting process of the charging protection parameter, and is not described herein again.

Based on the above, in the powered device, when the charging controller determines that the matching between the actual power supply information and the target power supply information fails, the charging controller may first obtain the safe charging parameter of the powered device, and send the safe charging parameter to the charging protection unit, so that the charging protection unit can be set according to the safe charging parameter, and the set charging protection unit can recover to the initial protection parameter of waiting for the power supply device to supply power, so that the charging protection unit can always protect the powered device according to the safe charging parameter during the charging process of the powered device waiting for the next round.

S411: the charging controller transmits a power supply request to the power supply apparatus to cause the power supply apparatus to retransmit the power supply capability information, and returns to execute S401.

The power supply request is a request used when the power receiving apparatus requests power supply to the power supply apparatus.

In this embodiment, when the powered device rejects to accept the power supply of the power supply device, the charging controller in the powered device may further send a power supply request to the power supply device again, so that the power supply device resends the power supply capability information to the powered device, thereby enabling the powered device to perform a next round of charging according to the above-mentioned S401 to S411.

Based on the above-mentioned related contents of S410 and S411, in the powered device, when the charging controller determines that the actual power supply information fails to match the target power supply information, the charging controller may control the charging related units (e.g., the charging protection unit) in the powered device to return to the initial state, so that the charging related units can accurately perform the next round of charging process. It can be seen that the charging controller in the powered device can repeatedly perform power supply negotiation with the power supply device until the power supply device can normally supply power to the powered device.

In some cases, a powered device (especially, an electronic device such as a mobile phone or a notebook) has two charging roles, that is, the powered device can serve as both a power receiving side and a power supplying side. For example, when the first mobile phone is used as a power receiving end, the first mobile phone can be powered by other devices (such as a notebook) used as a power supply end; when the first mobile phone is used as a power supply terminal, the first mobile phone can be used to supply power to other equipment (for example, another mobile phone) used as a power receiving terminal. The first mobile phone is used for representing any mobile phone device with two charging roles. As can be seen, the powered device needs to determine its power supply role first, so that when the power supply role of the powered device is determined to be the powered end, the powered device can perform a charging procedure.

Based on this, the present application provides still another implementation of the fast charging control method, in which the powered device may be an electronic device, and the fast charging control method may further include, in addition to some or all of the steps described above: when the charging controller determines that a cable interface of the powered device is connected with a quick charging cable, the charging controller determines a power supply role of the powered device according to a standard specified by a quick charging protocol. The quick charging cable is a cable supporting quick charging, and is used for connecting the power supply equipment and the powered equipment.

At this time, the step of the above "the charging controller obtains the power supply capability information sent by the power supply apparatus and the maximum charging power of the powered apparatus" may specifically be: when the charging controller determines that the power supply role of the power receiving device is a power receiving end, the charging controller acquires power supply capacity information sent by the power supply device and the maximum charging power of the power receiving device.

Based on the above, in the embodiment of the present application, after the powered device is inserted into the cable, the charging controller may first determine whether the cable is a fast charging cable, so that when the charging controller determines that the fast charging cable is connected to the cable interface of the powered device, the charging controller determines a power supply role of the powered device according to a fast charging protocol specified standard, and when the charging controller determines that the power supply role of the powered device is a powered end, the charging controller obtains the power supply capability information sent by the power supply device and the maximum charging power of the powered device. This enables the charging process of the powered device having two power supply roles to continue.

In addition, in some cases, when the power supply role of the power receiving device is determined to be the power receiving end, the charging protection unit may be initially set by using the safe charging parameter. Based on this, the present application provides still another implementation manner of the fast charge control method, in this implementation manner, in addition to the above-mentioned part or all of the steps, the fast charge control method may further include: when the charging controller determines that the power supply role of the powered device is a powered end, the charging controller sends the safe charging parameters of the powered device to the charging protection unit, so that the charging protection unit sets the initial protection parameters of the charging protection unit according to the safe charging parameters, and when the charging controller determines that the setting is completed, first feedback information is fed back to the charging controller, so that the charging controller obtains the power supply capacity information sent by the powered device after receiving the first feedback information. The first feedback information carries information that the charging protection circuit is set according to the safe charging parameters.

As can be seen from the above, in the embodiment of the present application, when the charging controller determines that the power supply role of the powered device is the powered end, the charging controller may first send the safe charging parameter of the powered device to the charging protection unit, so that the charging protection unit can perform initialization setting based on the safe charging parameter, and when the charging protection unit determines that the setting is completed, feed back the first feedback information to the charging controller, so that the charging controller starts to execute the above step of "the charging controller acquires the power supply capability information sent by the powered device" after receiving the first feedback information. So make during the power receiving equipment and power supply unit carry out the power supply negotiation, the protection unit that charges that sets up can protect the power receiving equipment according to safe voltage threshold and safe current threshold to make the power receiving equipment be in the state of being protected after inserting the cable all the time, so be favorable to improving the security of power receiving equipment.

In order to facilitate understanding of the fast charging control method provided in the embodiment of the present application, a charging process in which a powered device is an electronic device is taken as an example to be generally described below. The power receiving equipment comprises a charging controller and a charging protection unit, the charging protection unit comprises a voltage protection circuit and a current protection circuit, the voltage protection circuit is connected with the current protection circuit in series, and the series circuit is located at a cable interface and connected with the charging controller. It should be noted that both the voltage protection circuit and the current protection circuit are programmable circuits, that is, both the circuit parameters of the voltage protection circuit and the circuit parameters of the current protection circuit can be set at any time.

Referring to fig. 6, this figure is a schematic diagram of a fast charging control process of a powered device according to an embodiment of the present application. As shown in fig. 6, the charging process of the powered device specifically includes S601 to S613:

s601: the charging controller detects whether a cable interface of the powered device is connected with a quick charging cable, and determines the power supply role of the powered device according to the standard specified by a quick charging protocol when the cable interface of the powered device is determined to be connected with the quick charging cable.

In this application embodiment, the charge controller can detect whether the cable interface of powered device is connected with the cable that fills soon in real time to when the cable that fills soon inserts the cable interface of powered device, this charge controller can confirm in time that the cable interface of powered device is connected with the cable that fills soon, and at this moment, the charge controller confirms the power supply role of powered device according to the protocol regulation standard that charges soon.

S602: and the charging controller transmits the safe charging parameters of the power receiving equipment to the charging protection circuit when determining that the power supply role of the power receiving equipment is the power receiving end. Wherein the safe charging parameters include a safe voltage threshold and a safe current threshold.

S603: the charging protection circuit sets the voltage protection circuit and the current protection circuit according to the safe voltage threshold and the safe current threshold, so that the charging protection circuit can perform safety protection on the powered device according to the safe charging parameters.

S604: after the charging protection circuit completes the setting, the charging protection circuit sends first feedback information to the charging controller. The first feedback information carries information that the charging protection circuit is set according to the safe charging parameters.

S605: after the charging controller receives the first feedback information, the charging controller supplies the power supply capability information transmitted by the power supply apparatus and the maximum charging power of the power receiving apparatus.

In this embodiment of the application, after the charging controller receives the first feedback information, the charging controller can determine that the charging protection circuit has started to perform security protection on the powered device according to the secure charging parameter, and at this time, the charging controller only supplies power supply capability information sent by the powered device and the maximum charging power of the powered device, so that the charging controller can perform power supply negotiation with the powered device based on the power supply capability information and the maximum charging power.

S606: the charging controller determines target power supply information of the powered device according to the maximum charging power and the power supply capability information of the powered device.

It should be noted that the content of S606 is similar to that of S402 above, please refer to S402 above.

S607: the charge controller transmits target power supply information to the power supply device.

It should be noted that the content of S607 is similar to that of S403 above, please refer to S403 above.

S608: the charging controller transmits target power supply information to the charging protection unit.

It should be noted that the content of S608 is similar to that of S404 above, please refer to S404 above.

S609: and the charging protection unit sets the charging protection parameters of the charging protection unit according to the target power supply information.

It should be noted that the content of S609 is similar to the content of S405 above, please refer to S405 above.

S610: the charging protection unit judges whether the actual power supply information meets the charging protection parameters or not, obtains a judgment result, and sends the judgment result to the charging controller.

It should be noted that the content of S610 is similar to that of S406 above, please refer to S406 above.

S611: the charging controller determines whether the actual power supply information is matched with the target power supply information according to the judgment result sent by the charging protection unit, and if so, executes S612; if not, S613 is executed.

It should be noted that the content of S611 is similar to that of S407 above, please refer to S407 above.

S612: the charging controller controls the power receiving apparatus to receive power supply from the power supply apparatus.

It should be noted that the content of S612 is similar to that of S408 above, please refer to S408 above.

S613: the charge controller disconnects the power supply from the power supply apparatus to the power receiving apparatus and transmits the safe charging parameter of the power receiving apparatus to the charge protection unit to continue to execute S603.

It should be noted that the content of S613 is similar to that of S409, please refer to S409 above.

Based on the above contents of S601 to S613, when the powered device is an electronic device, the charging protection unit first performs setting according to the safe charging parameter of the powered device, so that the charging protection unit can protect the powered device immediately after the powered device is connected to the cable; then, the charging protection unit performs setting according to the target power supply information, so that the charging protection unit can protect the power receiving apparatus during power supply negotiation between the power receiving apparatus and the power supply apparatus and during power supply from the power supply apparatus to the power receiving apparatus. Therefore, the charging protection unit in the powered device can effectively protect the powered device in the whole charging process, so that the charging safety of the powered device can be effectively improved.

Based on the related content of the above fast charge control method, the embodiment of the present application further provides a fast charge control system, and for convenience of understanding and explanation, the following description is made with reference to the system embodiment.

System embodiment

Referring to fig. 7, the diagram is a schematic structural diagram of a fast charging control system according to an embodiment of the present application. As shown in fig. 7, moreover, the rapid charging control system 700 includes: a charge controller 701;

the charging controller 701 is configured to obtain power supply capability information sent by a power supply device and a maximum charging power of a powered device;

the charging controller 701 is further configured to determine target power supply information of the powered device according to the maximum charging power of the powered device and the power supply capability information; wherein the target power supply information comprises a target power supply voltage and a target power supply current;

the charging controller 701 is further configured to send the target power supply information to the power supply device;

the charging controller 701 is further configured to detect whether actual power supply information output by the power supply device matches the target power supply information according to the target power supply information, so as to obtain a power supply detection result; the actual power supply information comprises actual power supply voltage and actual power supply current;

the charging controller 701 is further configured to disconnect power supply from the power supply apparatus to a power receiving apparatus when the power supply detection result indicates that the actual power supply information fails to match the target power supply information.

Optionally, on the basis of the fast charge control system 700 shown in fig. 7, as shown in fig. 8, the fast charge control system 700 further includes a charge protection unit 702;

the charging controller 701 is configured to send the target power supply information to the charging protection unit;

the charging protection unit 702 is configured to set a charging protection parameter of the charging protection unit according to the target power supply information, and determine whether the actual power supply information satisfies the charging protection parameter, so as to obtain a determination result; the charging protection unit is used for protecting the charging safety of the powered device; the charging protection parameters comprise a protection voltage upper limit and a protection current upper limit;

the charging controller 701 is specifically configured to detect whether actual power supply information output by the power supply device matches the target power supply information according to the determination result sent by the charging protection unit, so as to obtain a power supply detection result.

Optionally, on the basis of the fast charge control system 700 shown in fig. 8, the charge protection unit 702 includes a voltage protection circuit and a current protection circuit; the charging protection unit 702 is specifically configured to set a protection voltage upper limit of the voltage protection circuit according to the target power supply voltage, and set a protection current upper limit of the current protection circuit according to the target power supply current.

Optionally, on the basis of the fast charging control system 700 shown in fig. 8, the charging protection unit 702 is specifically configured to:

if the voltage protection circuit determines that the actual power supply voltage is lower than the upper limit of the protection voltage and the current protection circuit determines that the actual power supply current is lower than the upper limit of the protection current, determining that the actual power supply information meets the charging protection parameters of the charging protection unit according to the judgment result;

and if the voltage protection circuit determines that the actual power supply voltage is higher than the upper limit of the protection voltage, or the current protection circuit determines that the actual power supply current is higher than the upper limit of the protection current, determining that the actual power supply information does not meet the charging protection parameters of the charging protection unit according to the judgment result.

Alternatively, based on the fast charge control system 700 shown in fig. 8,

the charging controller 701 is further configured to send a safe charging parameter of the powered device to the charging protection unit when the power supply detection result indicates that the actual power supply information fails to match the target power supply information.

The charging protection unit 702 is further configured to set an initial protection parameter of the charging protection unit according to the safe charging parameter; the initial protection parameters comprise a safe voltage upper limit and a safe current upper limit;

the charging controller 701 is further configured to send a power supply request to the power supply apparatus, so that the power supply apparatus retransmits the power supply capability information.

Optionally, on the basis of the fast charging control system 700 shown in fig. 7, as shown in fig. 9, the fast charging control system 700 further includes a charging information acquisition unit 703, where the charging information acquisition unit 703 is configured to acquire the actual power supply information when the power supply device supplies power to the powered device;

the charging controller 701 is specifically configured to detect whether the actual power supply information output by the power supply device matches the target power supply information according to the target power supply information and the actual power supply information sent by the charging information acquisition unit, so as to obtain a power supply detection result.

On the basis of the rapid charge control system 700 shown in any of figures 7-9,

the charging controller 701 is further configured to determine a power supply role of the powered device according to a standard specified by a fast charging protocol when it is determined that a fast charging cable is connected to a cable interface of the powered device;

the charging controller 701 is specifically configured to, when it is determined that the power supply role of the power receiving apparatus is a power receiving end, obtain power supply capability information sent by the power supply apparatus and a maximum charging power of the power receiving apparatus.

As can be seen from the related contents of the above-mentioned fast charge control system 700, in the embodiment of the present application, first, the charge controller 701 obtains the power supply capability information sent by the power supply apparatus, and determines the target power supply information of the power receiving apparatus according to the maximum charge power and the power supply capability information of the power receiving apparatus, where the target power supply information includes the target power supply voltage and the target power supply current. Then, the charging controller 701 transmits the target power supply information to the power supply apparatus, and detects whether the actual power supply information output by the power supply apparatus matches the target power supply information according to the target power supply information, so as to obtain a power supply detection result, so that when the power supply detection result indicates that the actual power supply information fails to match the target power supply information, the power supply apparatus is disconnected from supplying power to the power receiving apparatus. Wherein the actual power supply information is used to indicate power supply information when the power supply apparatus supplies power to the power receiving apparatus; the actual supply information includes an actual supply voltage and an actual supply current.

It can be seen that, when the power supply device starts to supply power to the power receiving device, the charging controller 701 may first determine whether the actual power supply information matches the target power supply information, so as to determine that the power supply device is supplying power to the power receiving device abnormally when it is determined that the matching fails, at this time, the charging controller 701 may directly control the power receiving device to not receive power supply from the power supply device, so that the power receiving device may not receive abnormal power supply from the power supply device, thereby effectively avoiding damage to a circuit of the power receiving device due to abnormal power supply (for example, power supply power of the power supply device exceeds maximum input power of the power receiving device) of the power supply device, and thus effectively improving charging safety of the power receiving device.

Based on the related content of the fast charging control method provided above, the embodiment of the present application further provides a corresponding fast charging control device, so that the fast charging control method is applied and implemented in practice.

Device embodiment

It should be noted that, the technical details of the fast charge control device provided in the embodiments of the present application may refer to the fast charge control method provided above.

Referring to fig. 10, the diagram is a schematic structural diagram of a fast charging control device according to an embodiment of the present application.

The quick charge control device 1000 provided by the embodiment of the present application includes:

an information acquisition unit 1001 configured to acquire power supply capability information transmitted by a power supply apparatus and a maximum charging power of a power receiving apparatus;

an information determining unit 1002 configured to determine target power supply information of the power receiving apparatus according to the maximum charging power of the power receiving apparatus and the power supply capability information; wherein the target power supply information comprises a target power supply voltage and a target power supply current;

a first sending unit 1003, configured to send the target power supply information to the power supply apparatus;

a power supply detection unit 1004, configured to detect whether actual power supply information output by the power supply device matches the target power supply information according to the target power supply information, so as to obtain a power supply detection result; the actual power supply information comprises actual power supply voltage and actual power supply current;

a power supply disconnection unit 1005 configured to disconnect power supply from the power supply apparatus to a power receiving apparatus when the power supply detection result indicates that the actual power supply information and the target power supply information fail to match.

Optionally, on the basis of the fast charge control apparatus 1000 shown in fig. 10, as shown in fig. 11, the fast charge control apparatus 1000 further includes:

a second sending unit 1006, configured to send the target power supply information to the charging protection unit, so that the charging protection unit sets a charging protection parameter of the charging protection unit according to the target power supply information, and the charging protection unit determines whether the actual power supply information meets the charging protection parameter, so as to obtain a determination result; the charging protection unit is used for protecting the charging safety of the power receiving equipment; the charging protection parameters comprise a protection voltage upper limit and a protection current upper limit;

the power supply detection unit 1004 is specifically configured to: and detecting whether the actual power supply information output by the power supply equipment is matched with the target power supply information according to the judgment result sent by the charging protection unit to obtain a power supply detection result.

Optionally, on the basis of the fast charge control apparatus 1000 shown in fig. 11, the charge protection unit includes a voltage protection circuit and a current protection circuit; the setting process of the charging protection parameters specifically comprises the following steps:

the charging protection unit sets a protection voltage upper limit of the voltage protection circuit according to the target power supply voltage;

and the charging protection unit sets the upper limit of the protection current of the current protection circuit according to the target power supply current.

Optionally, on the basis of the quick charge control device 1000 shown in fig. 11, the obtaining process of the determination result specifically includes:

if the voltage protection circuit determines that the actual power supply voltage is lower than the upper limit of the protection voltage and the current protection circuit determines that the actual power supply current is lower than the upper limit of the protection current, the charging protection unit determines that the actual power supply information meets the charging protection parameters of the charging protection unit according to the judgment result;

if the voltage protection circuit determines that the actual power supply voltage is higher than the upper limit of the protection voltage, or the current protection circuit determines that the actual power supply current is higher than the upper limit of the protection current, the charging protection unit determines that the judgment result is that the actual power supply information does not meet the charging protection parameters of the charging protection unit.

Optionally, on the basis of the fast charge control apparatus 1000 shown in fig. 11, as shown in fig. 12, the fast charge control apparatus 1000 further includes:

a third sending unit 1007, configured to send a safe charging parameter of the powered device to the charging protection unit when the power supply detection result indicates that the actual power supply information fails to match the target power supply information, so that the charging protection unit sets an initial protection parameter of the charging protection unit according to the safe charging parameter; the initial protection parameters comprise a safe voltage upper limit and a safe current upper limit;

a fourth transmitting unit 1008, configured to transmit the power supply request to the power supply apparatus, so that the power supply apparatus retransmits the power supply capability information.

Optionally, on the basis of the fast charging control apparatus 1000 shown in fig. 10, the power supply determining unit 1004 specifically includes:

detecting whether the actual power supply information output by the power supply equipment is matched with the target power supply information or not according to the target power supply information and the actual power supply information sent by the charging information acquisition unit to obtain a power supply detection result; the charging information acquisition unit is used for acquiring the actual power supply information when the power supply equipment supplies power to the powered equipment.

Alternatively, on the basis of the quick charge control device 1000 shown in any one of fig. 10 to 12, as shown in fig. 13, the quick charge control device 1000 further includes:

a role determination unit 1009, configured to determine, according to a standard specified by a fast charging protocol, a power supply role of the powered device when it is determined that a fast charging cable is connected to a cable interface of the powered device;

the information obtaining unit 1001 is specifically configured to: and when the power supply role of the power receiving equipment is determined to be the power receiving end, acquiring power supply capacity information sent by the power supply equipment and the maximum charging power of the power receiving equipment.

As can be seen from the above-mentioned related contents of the fast charge control apparatus 1000 applicable to a powered device, in the embodiment of the present application, the power supply capability information sent by the power supply device is first obtained, and the target power supply information of the powered device is determined according to the maximum charging power and the power supply capability information of the powered device, where the target power supply information includes the target power supply voltage and the target power supply current. And then, sending target power supply information to the power supply equipment, and detecting whether the actual power supply information output by the power supply equipment is matched with the target power supply information according to the target power supply information to obtain a power supply detection result, so that when the power supply detection result represents that the actual power supply information is failed to be matched with the target power supply information, the power supply of the power supply equipment to the power receiving equipment is cut off. Wherein the actual power supply information is used to indicate power supply information when the power supply apparatus supplies power to the power receiving apparatus; the actual supply information includes an actual supply voltage and an actual supply current.

It can be seen that, when the power supply device starts to supply power to the powered device, the fast charge control device 1000 may first determine whether the actual power supply information matches the target power supply information, so as to determine that the power supply device is supplying power to the powered device abnormally when it is determined that the matching fails, at this time, the fast charge control device 1000 may directly control the powered device not to receive power supply of the power supply device, so that the powered device does not receive abnormal power supply of the power supply device, thereby effectively avoiding damage to a circuit of the powered device due to abnormal power supply of the power supply device (for example, power supply power of the power supply device exceeds maximum input power of the powered device), and thus effectively improving charge safety of the powered device.

The embodiment of the present application further provides a terminal device and a server for controlling charging, and the terminal device and the server for controlling charging provided by the embodiment of the present application will be described in terms of hardware implementation.

Fig. 14 is a schematic structural diagram of a terminal device according to an embodiment of the present application. For convenience of explanation, only the parts related to the embodiments of the present application are shown, and details of the specific technology are not disclosed. The terminal may be any terminal device including a mobile phone, a tablet computer, a Personal Digital Assistant (PDA, for short, in english), a Sales terminal (POS, for short, in english), a vehicle-mounted computer, and the like, where the terminal is the tablet computer:

fig. 14 is a block diagram illustrating a partial structure of a tablet computer related to a terminal provided in an embodiment of the present application. Referring to fig. 14, the tablet computer includes: radio Frequency (RF) circuit 1410, memory 1420, input unit 1430, display unit 1440, sensor 1450, audio circuit 1460, wireless fidelity (WiFi) module 1470, processor 1480, and power supply 1490. Those skilled in the art will appreciate that the tablet configuration shown in fig. 14 is not intended to be a limitation of a tablet and may include more or fewer components than shown, or some components in combination, or a different arrangement of components.

The memory 1420 may be used to store software programs and modules, and the processor 1480 performs various functional applications and data processing of the tablet computer by operating the software programs and modules stored in the memory 1420. The memory 1420 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the stored data area may store data (such as audio data, a phonebook, etc.) created according to the use of the tablet computer, and the like. Further, memory 1420 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.

The processor 1480 is a control center of the tablet pc, connects various parts of the entire tablet pc using various interfaces and lines, and performs various functions of the tablet pc and processes data by operating or executing software programs and/or modules stored in the memory 1420 and calling data stored in the memory 1420, thereby performing overall monitoring of the tablet pc. Alternatively, the processor 1480 may include one or more processing units; preferably, the processor 1480 may integrate an application processor, which handles primarily operating systems, user interfaces, and applications, among others, with a modem processor, which handles primarily wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 1480.

In the embodiment of the present application, the processor 1480 included in the terminal also has the following functions:

transmitting the target power supply information to the power supply device;

Optionally, the processor 1480 is further configured to execute the steps of any implementation manner of the fast charge control method provided in the embodiment of the present application.

Fig. 15 is a schematic structural diagram of a server provided in this embodiment, where the server 1500 may generate large differences due to different settings or performances, and may include one or more Central Processing Units (CPUs) 1522 (e.g., one or more processors) and a memory 1532, and one or more storage media 1530 (e.g., one or more mass storage devices) for storing an application program 1542 or data 1544. Memory 1532 and storage media 1530 may be, among other things, transient or persistent storage. The program stored on the storage medium 1530 may include one or more modules (not shown), each of which may include a series of instruction operations for the server. Still further, a central processor 1522 may be provided in communication with the storage medium 1530, executing a series of instruction operations in the storage medium 1530 on the server 1500.

The server 1500 may also include one or more power supplies 1526, one or more wired or wireless network interfaces 1550, one or more input-output interfaces 1558, and/or one or more operating systems 1541, such as Windows Server, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, etc.

The steps performed by the server in the above embodiment may be based on the server structure shown in fig. 15.

The CPU 1522 is configured to execute the following steps:

transmitting the target power supply information to the power supply device;

Optionally, the CPU 1522 may also be configured to execute the steps of any implementation manner of the quick charge control method in the embodiment of the present application.

The embodiment of the present application further provides a computer-readable storage medium for storing a computer program, where the computer program is used to execute any one implementation manner of the fast charging control method described in the foregoing embodiments.

The present application further provides a computer program product including instructions, which when run on a computer, causes the computer to execute any one of the embodiments of the fast charge control method described in the foregoing embodiments.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing computer programs.

The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. A fast charge control method, the method comprising:

when the power supply role of the power receiving equipment is determined to be a power receiving end, sending a safe charging parameter of the power receiving equipment to a charging protection unit, so that the charging protection unit sets a safe voltage upper limit and a safe current upper limit of the charging protection unit according to the safe charging parameter, and protecting the power receiving equipment according to the safe voltage upper limit and the safe current upper limit during power supply negotiation between the power receiving equipment and the power supply equipment;

receiving first feedback information fed back by the charging protection unit when the setting is completed;

after receiving the first feedback information, obtaining power supply capability information sent by a power supply device and a maximum charging power of the powered device, where the maximum charging power of the powered device is a maximum input power that can be accepted by the powered device on the premise that the powered device is not damaged;

transmitting the target power supply information to the power supply device;

sending the target power supply information to the charging protection unit, so that the charging protection unit sets a protection voltage upper limit and a protection current upper limit of the charging protection unit according to the target power supply information, and judging whether actual power supply information meets the protection voltage upper limit and the protection current upper limit to obtain a judgment result;

detecting whether the actual power supply information output by the power supply equipment is matched with the target power supply information according to the judgment result sent by the charging protection unit to obtain a power supply detection result; the actual power supply information comprises actual power supply voltage and actual power supply current;

when the power supply detection result represents that the actual power supply information and the target power supply information are unsuccessfully matched, the power supply device is disconnected from supplying power to the powered device, and the safe charging parameter of the powered device is sent to the charging protection unit, so that the charging protection unit sets the safe upper limit voltage and the safe upper limit current of the charging protection unit according to the safe charging parameter;

a power supply request transmitted to the power supply apparatus to cause the power supply apparatus to retransmit power supply capability information.

2. The method of claim 1, wherein the charge protection unit comprises a voltage protection circuit and a current protection circuit; the setting process of the charging protection parameters specifically comprises the following steps:

and the charging protection unit sets the upper limit of the protection voltage of the voltage protection circuit according to the target power supply voltage and sets the upper limit of the protection current of the current protection circuit according to the target power supply current.

3. The method according to claim 2, wherein the obtaining of the determination result specifically comprises:

4. The method of claim 1, further comprising:

5. The method of claim 1, further comprising:

when a cable interface of the powered device is determined to be connected with a quick charging cable, determining a power supply role of the powered device according to a standard specified by a quick charging protocol;

the acquiring power supply capability information sent by the power supply device and the maximum charging power of the powered device specifically includes:

and when the power supply role of the power receiving equipment is determined to be the power receiving end, acquiring power supply capacity information sent by the power supply equipment and the maximum charging power of the power receiving equipment.

6. A rapid charge control device, comprising:

the device is used for sending a safe charging parameter of the power receiving equipment to a charging protection unit when the power supply role of the power receiving equipment is determined to be a power receiving end, so that the charging protection unit sets a safe voltage upper limit and a safe current upper limit of the charging protection unit according to the safe charging parameter, and protects the power receiving equipment according to the safe voltage upper limit and the safe current upper limit during power supply negotiation between the power receiving equipment and the power supply equipment; receiving first feedback information fed back by the charging protection unit when the setting is completed;

an information obtaining unit, configured to obtain, after receiving the first feedback information, power supply capability information sent by a power supply apparatus and a maximum charging power of the powered apparatus, where the maximum charging power of the powered apparatus is a maximum input power that can be accepted by the powered apparatus without damaging the powered apparatus;

the second sending unit is used for sending the target power supply information to the charging protection unit so that the charging protection unit sets a protection voltage upper limit and a protection current upper limit of the charging protection unit according to the target power supply information, and judges whether actual power supply information meets the protection voltage upper limit and the protection current upper limit to obtain a judgment result;

the power supply detection unit is used for detecting whether the actual power supply information output by the power supply equipment is matched with the target power supply information or not according to the judgment result sent by the charging protection unit to obtain a power supply detection result; the actual power supply information comprises actual power supply voltage and actual power supply current;

a power supply disconnection unit, configured to disconnect power supply from a power supply apparatus to a powered device when the power supply detection result indicates that matching between the actual power supply information and the target power supply information fails;

a third sending unit, configured to send, to the charging protection unit, a safe charging parameter of the powered device when the power supply detection result indicates that matching between the actual power supply information and the target power supply information fails, so that the charging protection unit sets a safe upper voltage limit and a safe upper current limit of the charging protection unit according to the safe charging parameter;

a fourth transmitting unit, configured to transmit the power supply request to the power supply apparatus, so that the power supply apparatus retransmits the power supply capability information.

7. An apparatus, comprising a processor and a memory:

the memory is used for storing a computer program;

the processor is configured to perform the method of any of claims 1-5 in accordance with the computer program.

8. A computer-readable storage medium, characterized in that the computer-readable storage medium is used to store a computer program for performing the method of any of claims 1-5 when called by a processor.