WO2022135216A1 - Electronic device and control method therefor - Google Patents

Abstract

Embodiments of the present application relate to the technical field of charging, and provide an electronic device and a control method therefor, for use in reducing the temperature of a battery when load power of the electronic device remains unchanged. The control method for an electronic device comprises: a charging/discharging manager controls an adapter to supply power to a load and charge a battery. Within a first preset time, when a controller determines that the temperature of the battery exceeds a preset temperature threshold T_thor the voltage of a battery cell exceeds a preset voltage threshold V_th, the charging/discharging manager limits the power supply power output by the adapter to first power supply power P_c1.The charging/discharging manager controls the battery to discharge, so as to compensate notch power of the adapter. Discharge power of the battery is less than or equal to first preset discharge power P_batt1.The first power supply power P_c1, rated power supply power P_init of the adapter, and the first preset discharge power P_batt1 satisfy the condition: P_c1+P_batt1≥P_init.

Description

An electronic device and its control method

This application claims the priority of the Chinese patent application with the application number 202011535876.8 and the application title "An electronic device and its control method" filed with the State Intellectual Property Office on December 22, 2020, the entire contents of which are incorporated herein by reference Applying.

technical field

The present application relates to the technical field of charging, and in particular, to an electronic device and a control method thereof.

Background technique

With the development of electronic devices such as notebooks and all-in-one computers toward the direction of lightness and thinness, the batteries in the electronic devices usually use thin flat-panel batteries. However, when the electronic device is connected to the adapter, when the electronic device is operated under a high load state, the battery may be in a high temperature state. In addition, due to the connection of the adapter, the battery with high capacity is stored for a long time in a high temperature state. As a result, the service life of the battery will be reduced, and even bulging will occur.

SUMMARY OF THE INVENTION

The present application provides an electronic device and a control method thereof, which are used to reduce the temperature of a battery under the condition that the load power of the electronic device remains unchanged.

To achieve the above object, the application adopts the following technical solutions:

In one aspect of the embodiments of the present application, a method for controlling an electronic device is provided. Electronic equipment includes batteries, loads, charge and discharge managers, and controllers. The charge and discharge manager is electrically connected to the battery, the load and the adapter, and the controller is electrically connected to the battery and the charge and discharge manager. The method includes: first, the charge and discharge manager controls the adapter to supply power to the load and charge the battery. Next, within the first preset time, when the controller determines that the battery temperature exceeds the preset temperature threshold T _th and that at least one of the battery cell voltage exceeds the preset voltage threshold V _th is satisfied, the controller determines that the battery is in the above-mentioned state. In the state of high temperature and high pressure, the charge and discharge manager limits the power supply output by the adapter to the first power supply P _c1 . Wherein, the first power supply P _c1 , the rated power supply power P _init of the adapter, and the first preset discharge power P _batt1 of the battery satisfy: P _c1 +P _{batt1 ≥P init} . Next, the charge and discharge manager controls the discharge of the battery, and the discharge power of the battery is less than or equal to the first preset discharge power P _batt1 to compensate for the notch power of the adapter.

In this way, when the controller detects that the battery is in the above-mentioned state of high temperature and high pressure, it will send a current limiting control command to the charge and discharge manager, so that the charge and discharge manager limits the power supply output by the adapter to For the first power supply P _c1 , the notch power of the adapter (P _init −P _c1 ) is compensated by the battery discharge. At this time, as can be seen from the above, the adapter and the battery work together to drive the load. After the battery is discharged, the capacity of the battery decreases, which is beneficial to the decrease of the battery temperature and effectively reduces the probability of the bulge phenomenon of the battery.

Optionally, before the charge and discharge manager limits the power supply output by the adapter to the first power supply power P _c1 , the method further includes: the controller obtains the rated working voltage Vdd of the adapter, and calculates the current limiting points I _limt , I _limt of the adapter =P _c1 /Vdd. The charging and discharging manager limiting the rated power supply power P _init output by the adapter to the first power supply power P _c1 includes: the charging and discharging manager limiting the current output by the adapter to the load to the current limiting point I _limt . In this way, by limiting the current output by the adapter to the load, the charge and discharge manager can achieve the purpose of limiting the power supply provided by the adapter to the load.

Optionally, before the controller calculates the current limiting point I _limt of the adapter, the method further includes that the controller calculates the difference between the current load power P _sys of the load and the second preset discharge power P _batt2 of the battery, as the first power supply power P. _c1 . Wherein, P _{batt2 ≤P batt1} , that is, the second preset discharge power P _batt2 is any value smaller than or equal to the first preset discharge power P _batt1 of the battery. When the second preset discharge power P _batt2 selects a smaller value, the current output from the adapter to the load can be repeated many times, and the gap power of the adapter is compensated by battery discharge, so as to reduce the battery capacity. When the second preset discharge power P _batt2 selects a larger value, the number of repetitions of the process of limiting the current output by the adapter to the load and compensating for the notch power of the adapter using battery discharge is reduced.

Optionally, the electronic device further includes a housing in contact with the battery. Before the controller calculates the current limiting point I _limt of the adapter, the method further includes: the controller collects the housing temperature of the electronic device and calculates the ambient temperature. Next, the controller obtains the preset load power P0 matching the ambient temperature from the preset correspondence. Wherein, when the load operates at each preset load power P0 in the preset corresponding relationship, the battery temperature is less than the preset temperature threshold T _th . Next, the controller obtains the rated working voltage Vdd of the adapter and the maximum load power P _max of the load. When P0+P _{batt1 ≥P max} , the controller will preset the load power P0 as the first power supply power P _c1 . When the power of the load reaches the preset load power P0, the battery temperature T _batt of the battery of the electronic device that matches the preset load power P0 is less than the preset temperature threshold T _th . Therefore, when the controller limits the power supply output by the adapter to the preset load power P0, it can be ensured that the battery temperature T _batt of the battery is less than the preset temperature threshold T _th under the above ambient temperature. In addition, the sum of the first preset discharge power P _batt1 of the battery and the preset load power P0 provided by the adapter to the load satisfies P0+P _{batt1 ≥P max} , that is, the charge and discharge manager limits the power supply power output by the adapter to the preset load When the power is P0, the sum of the preset load power P0 and the first preset discharge power P _batt1 of the battery is greater than or equal to the rated power supply P _init of the adapter, so it is sufficient to drive the load to work. Similarly, after the battery is discharged, the capacity of the battery decreases, which is beneficial to the decrease of the battery temperature and effectively reduces the probability of the battery bulging phenomenon.

Optionally, before the controller calculates the current limiting point I _limt of the adapter, the method further includes: the controller collects the housing temperature of the electronic device and calculates the ambient temperature. Next, the controller obtains the preset load power P0 matching the ambient temperature from the preset correspondence. Wherein, when the load operates at each preset load power P0 in the preset corresponding relationship, the battery temperature is less than the preset temperature threshold T _th . In addition, the controller obtains the rated working voltage Vdd of the adapter and the maximum load power _Pmax of the load. When P0+Pbatt1<P _max , the controller takes the sum of the preset load power P0 and the preset power margin P _gap as the first power supply power P _c1 . Wherein, P _gap =P _max -P0 -P _batt1 . When the power of the load reaches the preset load power P0, the battery temperature T _batt of the battery of the electronic device that matches the preset load power P0 is less than the preset temperature threshold T _th . Therefore, when the controller limits the power supply power output by the adapter to the preset load power P0, it can be ensured that the battery temperature T _batt of the battery is less than the preset temperature threshold T _th . In addition, since the sum of the first preset discharge power P _batt1 of the battery and the preset load power P0 provided by the adapter to the load satisfies P0+P _bat <P _max , that is, the charge and discharge manager limits the power supply output by the adapter to a preset value When the load power is P0, the sum of the preset load power P0 of the adapter and the first preset discharge power P _batt1 of the battery is not enough to drive the load to work. Therefore, in order to ensure that the adapter and the battery can jointly drive the load to work, the power corresponding to the current limiting point I _limt of the adapter needs to be increased by a certain margin P _gap on the basis of the preset load power P0 . Similarly, after the battery is discharged, the capacity of the battery decreases, which is beneficial to the decrease of the battery temperature and effectively reduces the probability of the battery bulging phenomenon.

Optionally, before the controller determines that at least one of the conditions of the battery temperature exceeding the preset temperature threshold T _th and the cell voltage exceeding the preset voltage threshold V _th is satisfied, the method further includes: the controller obtains the battery temperature, the cell voltage and the battery cell voltage. capacity, and obtain the current load power P _sys and the first preset discharge power P _batt1 of the load. In the case where the battery includes the cell 132, the power management chip and the thermistor, the power management chip can be electrically connected with the cell, and the power management chip can be used as a fuel gauge to measure the cell voltage V _batt and the battery capacity C _batt of the cell The acquisition is carried out, and the acquisition results are transmitted to the controller through the I2C interface. In addition, the above-mentioned thermistor may be disposed near the cell. The thermistor can sense the temperature of the cell. The controller can collect the current resistance value of the thermistor through the I2C interface, compare it with the initial resistance value of the thermistor, and calculate the battery temperature T _batt of the battery according to the change of the resistance value.

Optionally, obtaining the current load power P _sys of the load by the controller includes: the controller collects the load power output by the charge and discharge manager to the load multiple times within a second preset time. The controller calculates the average value of multiple load powers collected within the second preset time as the current load power P _sys . In this way, the controller does not need to obtain the load power output from the charge and discharge manager in real time, thereby reducing the data processing amount of the controller.

Optionally, within the second preset time, the controller collects the load power output by the charge and discharge manager to the load multiple times, including: the controller collects the load power output by the charge and discharge manager to the load once every 10 ms, and continuously. Collect 5 to 10 times. When the controller collects the pre-load power P _sys , when the collection interval is greater than 10ms, the accuracy of the collected data will be reduced, and when the collection interval is less than 10ms, the data processing capacity of the controller will be increased. In addition, when the controller collects more than 10 times continuously, the data processing capacity of the controller will increase, and when the controller collects less than 5 times continuously, the accuracy of the collected data will be reduced.

Optionally, the obtaining of the rated working voltage Vdd of the adapter by the controller includes: the charge and discharge manager receives the voltage output by the adapter. The charge and discharge manager outputs an in-position command to the controller, and the in-position command is used to instruct the adapter to be electrically connected to the charge and discharge manager. In this case, the adapter may not have the communication function, and the charge and discharge manager may be provided with a voltage through the adapter, so that the charge and discharge manager will know the in-position status of the adapter and send the in-position command to the controller. In addition, the controller uses the preset voltage as the rated working voltage Vdd of the adapter according to the above-mentioned in-position instruction.

Optionally, the electronic device further includes a detector electrically connected to the adapter and the controller. The controller obtaining the rated working voltage Vdd of the adapter includes: the detector detects the rated working voltage of the adapter, and sends the rated working voltage to the controller, and the in-position instruction is used to instruct the adapter to be electrically connected to the charge-discharge manager. At this time, the adapter has a communication function and can communicate with the detector, so that the detector can know the in-position state and parameters of the adapter, and transmit the in-position command and related parameters to the controller.

Optionally, after the battery is discharged, the method further includes: when the controller determines that the battery temperature is less than the preset temperature threshold and the cell voltage is less than the preset voltage threshold, the charge and discharge manager controls the rated power supply P _init output by the adapter. In this way, when the battery is in a safe state, the output power of the adapter is no longer limited by the charge and discharge manager, but is restored to the original initial value to meet the high power requirements of the load.

Optionally, after the charge and discharge manager controls the rated power supply P _init output by the adapter, the method further includes: the charge and discharge manager receives a user operation, and if the controller determines that the battery capacity of the battery reaches the preset capacity threshold C _th , the charge and discharge manager is charged and discharged. The manager controls the adapter to stop charging the battery. Wherein, the preset capacity threshold C _th is smaller than the maximum battery capacity C _max of the battery. In this way, when the electronic device is plugged into the adapter for a long time and is in a working state, the battery capacity of the battery can be kept in a moderate state, and the charging time and times can be reduced to prolong the battery life.

Optionally, the preset temperature threshold is 45°C. The preset voltage threshold is 4V. When the battery temperature T _batt of the battery exceeds 45°C, the battery is no longer in a safe charging state, and bulging is likely to occur.

Another aspect of the embodiments of the present application provides an electronic device, where the electronic device includes a load, a battery, a controller, and a charge-discharge manager. Among them, the battery is used to supply power to the load. The controller is electrically connected to the battery. The controller is configured to determine whether the battery temperature exceeds the preset temperature threshold T _th and whether the battery cell voltage exceeds the preset voltage threshold V _th within the first preset time. The charge and discharge manager is electrically connected to the battery, the load and the adapter. The charge and discharge manager is configured to limit the power supply output by the adapter to the first power supply P when the controller determines that at least one of the conditions of the battery temperature exceeding the preset temperature threshold T _th and the cell voltage exceeding the preset voltage threshold V _th is satisfied _c1 . The charge and discharge manager is also used to control battery discharge to compensate for notched power in the adapter. Wherein, the first power supply P _c1 , the rated power supply power P _init of the adapter, and the first preset discharge power P _batt1 of the battery satisfy: P _c1 +P _{batt1 ≥P init} . The discharge power of the battery is less than or equal to the first preset discharge power P _batt1 . The electronic device described above has the same technical effect as the control method for the electronic device provided by the foregoing embodiments, which will not be repeated here.

Optionally, before the charge and discharge manager limits the power supply output by the adapter to the first power supply power P _c1 , the controller is further configured to obtain the rated working voltage Vdd of the adapter and calculate the current limiting point I _limt of the adapter. Wherein, I _limt =P _c1 /Vdd. The charging and discharging manager used to limit the power supply output by the adapter to the first power supply power P _c1 includes: the charging and discharging manager is used to limit the current output by the adapter to the load to the current limiting point I _limt . The technical effect of the above-mentioned current limiting point I _limt is the same as above, and will not be repeated here.

Optionally, before the controller calculates the current limiting point I _limt of the adapter, the controller is further used to calculate the difference between the current load power P _sys and the second preset discharge power P _batt2 of the battery as the first power supply power P _c1 . Wherein, P _{batt2 ≤P batt1} . The technical effect of the setting method of the first power supply P _c1 is the same as that described above, and will not be repeated here.

Optionally, the electronic device further includes a housing in contact with the battery. Before the controller calculates the current limiting point I _limt of the adapter, the controller is also used to collect the housing temperature of the electronic device, calculate the ambient temperature, and obtain the preset load power P0 matching the ambient temperature from the preset correspondence. Next, the rated working voltage Vdd of the adapter and the maximum load power P _max of the load are obtained. When P0+P _{batt1 ≥} P _max , the load power P0 is preset as the first power supply power P _c1 . Wherein, when the load operates at each preset load power P0 in the preset corresponding relationship, the battery temperature is less than the preset temperature threshold T _th . The technical effect of the setting method of the first power supply P _c1 is the same as that described above, and will not be repeated here.

Optionally, the electronic device further includes a housing in contact with the battery. Before the controller calculates the current limiting point I _limt of the adapter, the controller is also used to collect the housing temperature of the electronic device, calculate the ambient temperature, and obtain the preset load power P0 matching the ambient temperature from the preset correspondence, and Obtain the rated working voltage Vdd of the adapter and the maximum load power P _max of the load, when P0+P _batt1 <P _max , the controller takes the sum of the preset load power P0 and the preset power margin P _gap as the first power supply P _c1 . Wherein, the load works at each preset load power P0 in the preset correspondence. P _gap =P _max -P0 -P _batt1 . The technical effect of the setting method of the first power supply P _c1 is the same as that described above, and will not be repeated here.

Optionally, the preset temperature threshold is 45°C; the preset voltage threshold is 4V. When the battery temperature T _batt of the battery exceeds 45°C, the battery is no longer in a safe charging state, and bulging is likely to occur.

Description of drawings

FIG. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of another electronic device provided by an embodiment of the present application;

3 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

4 is a schematic structural diagram of a USB interface according to an embodiment of the present application;

FIG. 5 is a flowchart of a control method of an electronic device provided by an embodiment of the present application;

6 is a schematic diagram of a control process of an electronic device provided by an embodiment of the present application;

7A is a schematic structural diagram of another electronic device provided by an embodiment of the present application;

7B is a schematic diagram of a control process of another electronic device provided by an embodiment of the present application;

8A is a schematic structural diagram of another electronic device provided by an embodiment of the present application;

8B is a schematic structural diagram of another electronic device provided by an embodiment of the present application;

FIG. 9 is a schematic structural diagram of another electronic device provided by an embodiment of the present application;

FIG. 10 is a flowchart of another control method of an electronic device provided by an embodiment of the present application.

Reference number:

01-electronic equipment; 10-display part; 100-display module; 11-system part; 110-shell; 120-mainboard; 130-battery; 20-load; 30-charge and discharge manager; 40-adapter; 50 -Controller; 60-Detector; 131-Thermistor; 132-Cell; 133-PMIC; 21-Partial charge mode button; 22-Dialog pop-up window.

Detailed ways

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

Hereinafter, the terms "first", "second", etc. are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first", "second", etc., may expressly or implicitly include one or more of that feature.

In addition, in this application, directional terms such as "upper" and "lower" may include, but are not limited to, definitions relative to the schematic placement of components in the drawings. It should be understood that these directional terms may be relative concepts, They are used for relative description and clarification, which may vary accordingly depending on the orientation in which the components are placed in the drawings.

In this application, unless otherwise expressly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" may be a fixed connection, a detachable connection, or an integrated body; it may be directly connected, or Can be indirectly connected through an intermediary. In addition, the term "electrical connection" may be a direct electrical connection or an indirect electrical connection through an intermediate medium.

An embodiment of the present application provides an electronic device, which may include a mobile phone, a tablet computer (pad), an all-in-one computer, a desktop computer, a TV, a smart wearable product (for example, a smart watch, a smart bracelet), a virtual Electronic products such as virtual reality (VR) terminal equipment and augmented reality (AR) terminal equipment. The embodiments of the present application do not specifically limit the specific form of the above electronic device. For the convenience of description below, the electronic device 01 is taken as an example of a notebook as shown in FIG. 1 .

In this case, the electronic device 01 may include a display portion 10 and a system portion 11 that are rotatably connected. The display unit 10 described above includes the display module 100 for displaying images. In some embodiments of the present application, the display module 100 may include a liquid crystal display (LCD). Alternatively, in other embodiments of the present application, the display module 100 may include an organic light emitting diode (organic light emitting diode, OLED) display screen. This application does not limit the type of the display screen. In addition, the above-mentioned system unit 11 may include a housing 110 , a mainboard 120 and a battery 130 disposed in the housing 110 . The above-mentioned mainboard 120 may be a printed circuit board (printed circuit board, PCB).

In addition, the above-mentioned electronic device 01 may further include a load 20 as shown in FIG. 2 . The load 20 may include electronic components for performing various functions. Exemplarily, the above-mentioned load 20 may include a chip with a data processing function disposed on the above-mentioned main board 120 (as shown in FIG. 1 ), for example, a system on a chip (SOC), a central processing unit (central processing unit) , CPU) or graphics processing unit (graphics processing unit, GPU). In addition, the load 20 may also include the above-mentioned display module, a power metering chip and a temperature sensor for realizing the detection function, a speaker, a microphone and a codec chip for processing chip data, a radio frequency transceiver circuit for realizing the communication function, and baseband processor, etc.

On this basis, in order to supply power to the above-mentioned load 20 to drive the load 20 to work, the electronic device 01 may further include a charge and discharge manager (charger) 30 as shown in FIG. 2 . The charge and discharge manager 30 is electrically connected to the battery 130 and the load 20 . In addition, when the adapter 40 is in place, the charge and discharge manager 30 can also be electrically connected with the adapter 40 . The adapter 40 is used to convert 220V alternating current (AC) into direct current (DC). In the following, for the convenience of description, the adapter 40 in the working state is referred to as working in the AC mode. The charge and discharge manager 30 can control the adapter 40 to supply power to the load 20 and control the power supply provided by the adapter 40 to the load 20 . In addition, the charge and discharge manager 30 can also control the adapter 40 to charge the battery 130 .

It should be noted that, in some embodiments of the present application, when the above-mentioned electronic device 01 is a small-sized electronic product such as a notebook, a mobile phone, and an all-in-one machine, the above-mentioned adapter 40 and the electronic device 01 are two independent electronic devices, The adapter 40 is an external adapter. At this time, the adapter 40 independent of the electronic device 01 can be electrically connected to the charge and discharge manager 30 through an interface, such as a universal serial bus (USB) interface.

Alternatively, in other embodiments of the present application, when the electronic device 01 is a large-sized electronic product such as a desktop computer or a TV, the adapter 40 can be integrated inside the electronic device 01, and the adapter 40 is a built-in adapter . At this time, the adapter 40 integrated in the electronic device 01 can be directly electrically connected to the charge and discharge manager 30 through the internal wiring.

In addition, in some embodiments of the present application, the electronic device 01 may further include a controller 50 as shown in FIG. 2 . For example, when the above-mentioned electronic device 01 is a notebook, the controller 50 may be an embedded controller (embed controller, EC). The controller 50 can be electrically connected with the battery 130 and the charge and discharge manager 30 through an integrated circuit (inter integrated circuit, I2C). The controller 50 can acquire battery-related parameter information such as the power of the battery 130, the battery temperature, the cell voltage, and the charging and discharging power. When the controller 50 learns that the adapter 40 is in place, the controller 50 can generate a current limiting control instruction according to the above parameter information related to the battery, and send the current limiting control instruction to the charge and discharge manager 30 . The current limiting control instruction is used to instruct the charge and discharge manager 30 to limit the power supply from the adapter 40 to the battery 130 .

In some embodiments of the present application, the adapter 40 may not have a signal transmission function. At this time, in order to enable the controller 50 to know the status of the adapter 40, when the adapter 40 is electrically connected to the charge and discharge manager 30, the charge and discharge manager 30 can receive the power supply voltage output by the adapter 40 to determine that the adapter 40 is on bit status. Next, the charge and discharge manager 30 may output an on-site command to the controller 50 , where the on-site command is used to instruct the adapter 40 to be electrically connected to the charge and discharge manager 30 . In this case, since the adapter 40 does not have the function of signal transmission, if the controller 50 receives an in-position command from the charge and discharge manager 30, the controller 50 can default the adapter 40 as a standard adapter, and the adapter 40 communicates with The parameters such as the rated power supply P _init , the output voltage and the output current provided by the load 20 are the same as those of the standard adapter.

Or, in other embodiments of the present application, when the adapter 40 can have a signal transmission function, the electronic device 01 can further include a detector 60 as shown in FIG. 3 . The detector 60 can be electrically connected to the adapter 40 and the controller 50 through an I2C bus. When the detector 60 detects the adapter 40 , the detector 60 can send the above-mentioned in-position command to the controller 50 . For example, the above-mentioned detector 60 may be a power delivery (power delivery, PD) controller. In some embodiments of the present application, some functions of the detector 60 may be integrated into the controller 50 .

For example, if the adapter 40 is connected to the electronic device 01 through the USB Type-C interface, as shown in FIG. 4 , the Type-C interface may be provided with CC pins specified according to the Type-C interface protocol. The CC pin can identify the type of adapter 40 connected. In this way, the detector 60 can transmit parameters such as the rated power supply P _init , the output voltage and the output current related to the type of the adapter 40 to the controller 50 together with the above in-position command according to the result of the CC pin identification, so as to This enables the controller 50 to know the presence status of the adapter 40 .

It should be noted that, the above description takes the Type-C interface as an example to illustrate the identification of the type of the adapter 40 as an example. When other types of interfaces have pins with an identity document (ID) function, the identification process for the type of the adapter 40 is the same as that described above, and will not be repeated here.

The following describes the control method of the electronic device 01 by way of example with reference to FIG. 2 .

Example 1

In this example, the power supplied by the adapter 40 to the load 20 is limited. In addition, the reduced power supply of the adapter 40 is compensated by the battery 130 to ensure that the power received by the load 20 is not reduced. Specifically, when the adapter 40 is electrically connected to the charge and discharge manager 30 , the control method of the electronic device 01 in this example may include S101 to S109 as shown in FIG. 5 .

S101 . The charge and discharge manager 30 controls the adapter 40 to supply power to the load 20 and to charge the battery 130 .

When S101 is executed, as shown in FIG. 6 , the adapter 40 outputs the rated power supply P _init . Under the control of the charge and discharge manager 30 , a part of the rated power supply P _init of the adapter 40 can be transmitted to the battery 130 as the power supply P1 of the battery 130 to charge the battery 130 . Another part of the rated power supply P _init of the adapter 40 can be transmitted to the load 20 as the current load power P _sys of the load 20 to drive the load 20 to work. At this time, P _init =P1+P _sys , and the adapter 40 (AC mode) drives the load 20 to work. Wherein, when the battery 130 is fully charged, P1=0.

S102 , the controller 50 determines whether the battery 130 is in a state of high temperature and high capacity.

In some embodiments of the present application, the controller 50 may acquire the battery temperature T _batt , the cell voltage V _batt and the battery capacity C _batt of the battery 130 . For example, the above-mentioned battery 130 may include a battery cell 132 , a power management integrated circuit chip (PMIC) 133 and a thermistor (negative temperature coefficient, NTC) 131 as shown in FIG. 7A .

The PMIC 133 is electrically connected to the battery cell 132 , and the PMIC can be used as a fuel gauge to collect the cell voltage V _batt and the battery capacity C _batt of the battery cell 132 , and transmit the collected results to the controller 50 through the I2C interface. In addition, the above-mentioned thermistor 131 may be disposed near the battery cell 132 . The thermistor 131 can sense the temperature of the battery cell 132 . The controller 50 can collect the current resistance value of the thermistor 131 through the I2C interface, compare it with the initial resistance value of the thermistor 131, and calculate the battery temperature T _batt of the battery 130 according to the change of the resistance value.

Next, within the first preset time T1, if the battery temperature T _batt of the battery 130 acquired by the controller 50 exceeds the preset temperature threshold T _th (T _batt >T _th ), or the cell voltage acquired by the controller 50 When V _batt exceeds the preset voltage threshold V _th (V _batt >V _th ), that is, when at least one of T _batt >T _th and V _batt >V _th is satisfied, the controller 50 can determine that the battery 130 is in a high temperature and high capacity state. state.

Next, the following S103 may be performed. If the battery temperature T _batt of the battery 130 acquired by the controller 50 is smaller than the preset temperature threshold T _th (T _batt <T _th ), and the cell voltage V _batt acquired by the controller 50 is less than the preset voltage threshold V _th (V _batt <V _th ), that is, when both T _batt <T _th and V _batt <V _th are satisfied, the battery 130 is in a safe state, so the above S101 can be executed to make the electronic device 01 in the default working state.

In some embodiments of the present application, when the battery temperature T _batt of the battery 130 exceeds 45° C., the battery 130 is no longer in a safe charging state, and bulging is likely to occur. Therefore, the above-mentioned preset temperature threshold T _th may be 45°C. Alternatively, when the cell voltage V _batt exceeds the preset voltage threshold V _th , the battery 130 is no longer in a safe charging state, and bulging is likely to occur. Therefore, the above-mentioned preset voltage threshold V _th may be 4V.

In the case where the above-mentioned electronic device 01 is a notebook, the above-mentioned first preset time T1 may be 10 days to 20 days. For example, when the electronic device 01 is used for analyzing experimental data, computing a large amount of data, or hanging up a game, the electronic device 01 usually needs to be turned on and working for a long time within the above-mentioned first preset time T1. At this time, the above-mentioned S102 may be executed to determine whether the battery 130 is in a state of high temperature and high capacity within the above-mentioned first preset time T1.

It should be noted that the above is an illustration of the values of the preset temperature threshold T _th and the preset voltage threshold V _th used when determining whether the battery 130 is in a high-temperature and high-capacity state when the electronic device 01 is a notebook. The size of the preset temperature threshold value T _th and the preset voltage threshold value V _th are defined. When the type of the battery 130 and the applied electronic device 01 change, the above-mentioned preset temperature threshold T _th and preset voltage threshold V _th will also change accordingly, which will not be repeated here.

In addition, in the flowchart of the method provided by the embodiment of the present application, for example, in FIG. 5 , the letter “Y” indicates that the judgment result is yes (yes), and the letter “N” indicates that the judgment result is no (no).

S103 , the controller 50 acquires the current load power P _sys of the load 20 .

For example, the electronic device 01 may further include a first resistor R1 and a second resistor R2 as shown in FIG. 7A . The first resistor R1 may be electrically connected between the adapter 40 and the charge/discharge manager 30 , and the second resistor R2 may be electrically connected between the battery 130 and the charge/discharge manager 30 . The charge-discharge manager 30 can collect the magnitudes of the currents flowing through the first resistor R1 and the second resistor R2 , and calculate the load power output to the load 20 according to the output voltage of the adapter 40 and the discharge voltage of the battery 130 . On this basis, the charge and discharge manager 30 can also transmit the calculated load power to the controller 50 through the I2C bus.

In some embodiments of the present application, the controller 50 may acquire the load power output from the charge and discharge manager 30 in real time as the current load power P _sys of the load 20 . Alternatively, in other embodiments of the present application, in order to reduce the data processing amount of the controller 50, in the process of executing the above S103, first, the controller 50 may collect the charge and discharge multiple times within the second preset time T2 The load power output by the manager 30 to the load 20 . For example, the controller 50 may collect the load power output by the charge-discharge manager 30 to the load 20 once every 10 ms, and collect the power continuously for 5-10 times. Next, the controller 50 may calculate the average value of multiple load powers collected within the second preset time T2 as the current load power P _sys .

When the controller 50 collects the pre-load power P _sys , when the collection interval is greater than 10ms, the accuracy of the collected data will be reduced, and when the collection interval is less than 10ms, the data processing capacity of the controller 50 will be increased. In addition, when the controller 50 continuously collects more than 10 times, the data processing capacity of the controller 50 will increase, and when the controller 50 continuously collects less than 5 times, the accuracy of the collected data will be reduced.

S104 , the controller 50 acquires the first preset discharge power P _batt1 of the battery 130 .

When executing the above S104, the controller 50 may detect the current battery capacity C _batt of the battery 130 through the I2C bus as shown in FIG. 7A . The first preset discharge power P _batt1 of the battery 130 may be a preset discharge power matching the current battery capacity C _batt of the battery 130 . For example, the preset discharge power may be the maximum discharge power, or the preset discharge power may be set according to the needs of the user, which is not limited in this application.

Taking the first preset discharge power P _batt1 as the maximum discharge power matching the current battery capacity C _batt of the battery 130 as an example, for the battery 130 discharged at a constant current, with the capacity of the battery 130 and the temperature and other factors, Otherwise, the cell voltage V _batt of the battery 130 will change. Therefore, when the capacity of the battery 130 changes, the discharge power of the battery 130 also changes. For example, when the battery 130 is fully charged, the first preset discharge power P _batt1 of the battery 130 may be 50W. When the power of the battery 130 is 90%, the first preset discharge power P _batt1 of the battery 130 will be less than the above-mentioned 50W, and at this time, the first preset discharge power P _batt1 of the battery 130 will change with the change of the power . Or, for another example, when the battery 130 is a constant-power battery, the first preset discharge power P _batt1 of the battery 130 may be fixed.

It should be noted that, when the first preset discharge power P _batt1 of the battery 130 is the maximum discharge power matching the current battery capacity C _batt of the battery 130 , the above-mentioned maximum discharge power For each battery, under the same battery capacity C _batt , the average value of the maximum discharge power of each battery obtained by testing is not a certain transient discharge power of a certain battery 130 under the battery capacity C _batt . Because without triggering the battery protection, the discharge power of the battery 130 in a certain transient state may be very large, for example, it may reach 70W. Therefore, the above-mentioned maximum discharge power matching the current battery capacity C _batt of the battery 130 represents the average level of the maximum discharge capacity of multiple batteries of the same type under the same battery capacity C _batt .

S105 , the controller 50 sets the current limiting point I _limt of the adapter, and the charge and discharge manager 30 limits the power supply received by the battery 130 and output from the adapter 40 .

In the process of performing the above S105, the above control method may include: first, the controller 50 calculates the difference between the current load power P _sys obtained in S104 and the second preset discharge power P _batt2 of the battery 130 as the first power supply power P _c1 , that is, P _c1 =P _sys -P _batt2 . Wherein, P _{batt2 ≤P batt1} .

It should be noted that this application does not limit the size of the second preset discharge power P _batt2 , as long as the second preset discharge power P _batt2 is less than or equal to any one of the first preset discharge power P _batt1 of the battery 130 . numerical value. For example, the above P _batt2 =10W. At this time, if the controller 50 determines that the battery 130 is still in a high-temperature and high-capacity state after S102 to S108 as shown in FIG. 5 , and the controller 50 determines that the battery 130 is still in a high-temperature and high-capacity state during the execution of S102, the above-mentioned S103 to S109 may be repeatedly performed until the battery The 130 is no longer in a high-temperature, high-capacity state. Or, as another example, the value of the second preset discharge power P _batt2 may be greater than 10W, so that the number of times of performing the above S103 to S109 multiple times can be reduced.

Next, the controller 50 may obtain the rated operating voltage Vdd of the adapter 40 and calculate the current limiting point I _limt of the adapter 40 , where I _limt =P _c1 /Vdd=(P _sys −P _batt2 )/Vdd. The current limit point I _limt (eg, 4A) is less than the rated supply current of the adapter 40 (eg, 5A).

In order for the controller 50 to obtain the rated working voltage Vdd, the rated power supply P _init and the rated supply current of the adapter 40, in some embodiments of the present application, it can be seen from the above that when the adapter 40 does not have the signal transmission function, when After the charge and discharge manager 30 sends the in-position command of the adapter 40 to the controller 50, the controller 50 defaults the adapter 40 as a standard adapter, so the rated working voltage Vdd of the adapter 40 obtained by the controller 50 is the rated working voltage of the standard adapter, The rated working voltage of the standard adapter can be stored in the controller 50 as a preset voltage. Similarly, the rated power supply P _init and rated power supply current of the adapter 40 obtained by the controller 50 are the rated power supply power and rated power supply current of the standard adapter.

Or, in other embodiments of the present application, when the adapter 40 has a signal transmission function, when the detector 60 (as shown in FIG. 3 ) detects the adapter 40 , the detector 60 can detect The received rated working voltage Vdd, rated power P _init and rated power supply current of the adapter 40 are sent to the controller 50, so that the controller 50 can obtain the rated working voltage Vdd, rated power P _init and rated power of the adapter 40. supply current.

Next, in some embodiments of the present application, the controller 50 may generate a current-limiting control instruction according to the calculated current-limiting point I _limt . Moreover, after the controller 50 receives the in-position command from the adapter 40 , it can send the above-mentioned current limiting control command to the charge and discharge manager 30 . Next, the charge and discharge manager 30 may limit the current output by the adapter 40 to the load 20 to the current limit point I _limt (eg, I _limt =4A). At this time, in the current output from the adapter 40 to the load 20, the charge and discharge manager 30 only allows the current corresponding to the current limit point I _limt , for example, 4A to be transmitted to the load 20, so that the charge and discharge manager 30 can The sent current limiting control instruction limits the power supply output by the adapter 40 to the first power supply P _c1 (P _c1 =P _sys -P _batt2 ). Further, the purpose of limiting the power supply received by the battery 130 and output from the adapter 40 by the charge and discharge manager 30 can be achieved.

As shown in FIG. 7B , in the case that the power supply power output by the adapter 40 is limited by the charge and discharge manager 30 to the first power supply power P _c1 , the charge and discharge manager 30 can also control the battery 130 to discharge, so as to supply power to the adapter 40 . The reduced part, the notch power P _d1 of the adapter 40 (P _d1 =P _init −P _c1 ), is compensated. When the battery 130 is discharged, the output voltage is a direct current (DC) voltage, and the discharge power of the battery 130 at this time is less than or equal to the first preset discharge power P _batt1 . For the convenience of description below, the battery 130 in the discharged state is referred to as operating in the DC mode.

In this case, before the power supply output by the adapter 40 is limited (the adapter 40 can provide the rated power P _init ) and after the limit (the adapter 40 can provide the first power P _c1 ), the load power of the electronic device 01 can be maintained Unchanged, the first power supply P _c1 , the rated power supply P _init of the adapter 40 and the first preset discharge power P _batt1 of the battery 130 may satisfy: P _c1 +P _{batt1 ≥P init} .

At this time, the adapter 40 (operating in the AC mode) and the battery 130 (operating in the DC mode) jointly drive the load 20 to work. When the battery 130 is discharged, the capacity of the battery 130 decreases, which is beneficial to the decrease of the temperature of the battery 130, so that the battery 130 can be in a safe charging and discharging state when the adapter 40 is in place, thereby effectively reducing the probability of the battery 130 bulging.

S106, the controller 50 determines whether the battery 130 is in a safe state.

Specifically, the controller 50 obtains the battery temperature T _batt , the cell voltage V _batt and the battery capacity C _batt of the battery 130 , and the controller 50 obtains the above parameters in the same manner as described above, which will not be repeated here. If the battery temperature T _batt of the battery 130 acquired by the controller 50 is smaller than the preset temperature threshold T _th (T _batt <T _th ), and the cell voltage V _batt acquired by the controller 50 is less than the preset voltage threshold V _th (V _batt <V _th ), that is, when both T _batt <T _th and V _batt <V _th are satisfied, it means that the battery 130 is in a safe state, and at this time, the following S107 is executed.

Alternatively, if the battery temperature T _batt of the battery 130 obtained by the controller 50 exceeds the preset temperature threshold T _th (T _batt >T _th ), or, the battery cell voltage V _batt obtained by the controller 50 exceeds the preset voltage threshold V _th ( When V _batt >V _th ), that is, when at least one of T _batt >T _th and V _batt >V _th is satisfied, the controller 50 can determine that the battery 130 is in a state of high temperature and high capacity. At this time, the above-mentioned S103 to S106 are repeatedly executed until the battery 130 is in a safe state.

S107: The controller 50 sends a recovery instruction to the charge and discharge manager 30, and the charge and discharge manager 30 controls the adapter 40 to output the rated power supply P _init .

In this case, after the charge-discharge manager 30 receives the recovery instruction from the controller 50, it can control the adapter 40 to output the rated power supply P _init . In this way, when the battery 130 is in a safe state, the output power of the adapter 40 is no longer limited by the charge and discharge manager 30, but returns to the original initial value.

S108 , whether to maintain the current battery capacity C _batt .

When the electronic device 01 is plugged into the adapter 40 for a long time and is in the working state, in order to keep the battery capacity of the battery 130 in a moderate state, reduce the charging time and times, and prolong the life of the battery 130, the battery capacity of the battery 130 can be controlled at When the preset capacity threshold C _th (eg, 70%) is reached, the control adapter 40 no longer charges the battery 130 . The above-mentioned preset capacity threshold C _th may be smaller than the maximum battery capacity C _max of the battery 130 (eg, 100%).

For example, as shown in FIG. 8A, after the adapter 40 resumes outputting the rated power supply P _init , a dialog box 22 may be displayed on the operation interface of the electronic device 01, and the user can click Yes (Y) or No (N) to select whether the electronic device 01 enables the partial charging mode. When the user clicks Yes (Y), as shown in FIG. 8B , the non-full charge mode button 21 may be displayed on the operation interface of the electronic device 01 . When the user triggers the above-mentioned partial charge mode button 21, the following S109 is executed. If the user clicks No (N) in the popup window 22 shown in FIG. 8A , the above S101 is executed, so that the electronic device 01 is in the default working state.

S109 , if the capacity of the battery C _batt of the battery 130 reaches the preset capacity threshold value C _th , stop charging the battery.

After the charge and discharge manager 30 receives the user's operation of triggering the non-full charge mode button 21, if the controller 50 detects that the battery capacity C _batt of the battery 130 reaches the preset capacity threshold C _th (C _batt =C _th ), the The charge and discharge manager 30 controls the adapter 40 to stop charging the battery 130 . If the battery capacity of the battery 130 does not reach the preset capacity threshold C _th , the charge and discharge manager 30 controls the adapter 40 to continue charging the battery 130 .

In addition, the controller 50 will continuously monitor the battery temperature T _batt , the cell voltage V _batt and the battery capacity C _batt of the battery 130 , so as to repeatedly execute the above S101 to S109 . In this way, as long as the battery 130 is in the above-mentioned high temperature and high pressure state, the charge and discharge manager 30 will limit the power supply power output by the adapter 40 to the first power supply power P _c1 , and the notch power of the adapter (P _init −P _c1 ) is determined by the battery 130 discharge to compensate. At this time, as can be seen from the above, the adapter 40 (operating in the AC mode) and the battery 130 (operating in the DC mode) jointly drive the load 20 to operate. After the battery 130 is discharged, the capacity of the battery 130 decreases, which is conducive to reducing the temperature of the battery 130 and effectively reduces the probability of the bulge phenomenon of the battery 130 .

Example 2

The same between this example and the first example is that in order to make the part of the power supply of the adapter 40 reduced by the battery 130 to compensate, and to ensure that the power received by the load 20 is not reduced, the power supply power transmitted from the adapter 40 to the load 20 needs to be adjusted. limit. In addition, the difference from Example 1 is that in this example, as shown in FIG. 9 , the controller 50 also needs to detect the temperature of the housing 110 of the electronic device 01 . Specifically, when the adapter 40 is electrically connected to the charge and discharge manager 30 , the control method of the electronic device 01 in this example may include S201 to S212 as shown in FIG. 10 .

S201 , the charge and discharge manager 30 controls the adapter 40 to supply power to the load 20 and to charge the battery 130 .

This S201 is the same as S101 in Example 1. As shown in FIG. 6 , a part of the rated power supply P _init output by the adapter 40 can be transmitted to the battery 130 as the power supply P1 of the battery 130 to charge the battery 130 . Another part of the rated power supply P _init can be transmitted to the load 20 as the current load power P _sys of the load 20 to drive the load 20 to work.

S202, the controller 50 determines whether the battery 130 is in a state of high temperature and high capacity.

This S202 is the same as S102 in Example 1. The controller 50 obtains the battery temperature T _batt , the cell voltage V _batt and the battery capacity C _batt of the battery 130 , and the method for determining whether the battery 130 is in a high temperature and high capacity state is as described above, It will not be repeated here. If the controller 50 determines that the battery 130 is in a high temperature and high capacity state, the following S203 is performed, and if the controller 50 determines that the battery 130 is in a safe state, the above S201 is performed.

S203, the controller 50 acquires the preset load power P0.

The method for performing the above S203 may specifically include: the controller 50 collects the casing temperature of the electronic device 01, and calculates the ambient temperature according to the casing temperature. Then, the preset load power P0 matching the ambient temperature is obtained from the preset correspondence. The preset corresponding relationship includes a plurality of ambient temperatures, a plurality of preset load powers P0, and a corresponding relationship between an ambient temperature and a preset load power P0. When the load 20 operates at each preset load power P0 in the preset corresponding relationship, the battery temperature T _batt may be lower than the preset temperature threshold T _th (eg, 45° C.).

For example, the above-mentioned preset correspondence may be obtained by testing the electronic device 01 before the electronic device 01 leaves the factory. For example, during the test, when the electronic device 01 is in a stable working state, under different ambient temperatures, when the test battery temperature T _batt is less than the above-mentioned preset temperature threshold T _th (for example, 45° C.), the load power of the load 20 , so as to form the above preset corresponding relationship, and store the preset corresponding relationship in the controller 50 . S204 , the controller 50 acquires the current load power P _sys of the load 20 .

This S204 is the same as S103 in Example 1. For example, the controller 50 may collect the load power output by the charge and discharge manager 30 to the load 20 for multiple times within the second preset time T2, and calculate the average value of the multiple load powers, as the above-mentioned current load power P _sys .

S205 , the controller 50 acquires the first preset discharge power P _batt1 of the battery 130 .

This S205 is the same as S104 in Example 1. The controller 50 can detect the current battery capacity C _batt of the battery 130 through the I2C bus as shown in FIG. 7A .

S206. The controller 50 determines whether P0+P _{batt1 ≥P max} holds.

Among them, P _max is the maximum load power of the load 20 in the whole working process. Before the electronic device 01 leaves the factory, the maximum load power P _max of the load 20 can be calculated by the charge and discharge manager 30 by means of testing. In this case, the charge and discharge manager 30 may add a certain margin ΔP on the basis of the calculated current load power P _sys (100%) of the load 20 , where ΔP=P _max −P _sys , The load power of the electronic device 01 in any transient state during the whole working process is less than or equal to the above-mentioned maximum load power P _max .

Next, the charge and discharge manager 30 can transmit the maximum load power P _max to the controller 50 through the I2C bus, so that the controller 50 can perform the above-mentioned S206.

After executing S206, if the controller 50 determines that P0+P _{batt1 ≥} P _max , it means that when the charge and discharge manager 30 limits the power supply output by the adapter 40 to the preset load power P0, the preset load power P0 of the adapter 40 and the battery The sum of the first preset discharge power P _batt1 of 130 is greater than or equal to the rated power supply P _init of the adapter 40 , so it is sufficient to drive the load 20 to work, then execute S207 .

If the controller 50 determines that P0+P _batt1 <P _max , it means that when the charge and discharge manager 30 limits the power supply power output by the adapter 40 to the preset load power P0, the preset load power P0 of the adapter 40 and the battery 130 first If the sum of the preset discharge powers P _batt1 is not enough to drive the load 20 to work, S208 is executed.

S207 , the controller 50 sets the current limiting point I _limt of the adapter, and sets the preset load power P0 as the first power supply power P _c1 . The charge and discharge manager 30 limits the power supply received by the battery 130 and output from the adapter 40 .

In the process of executing the above S207, the controller 50 presets the load power P0 as the first power supply power P _c1 , that is, P _c1 =P0 . The controller 50 can obtain the rated working voltage Vdd of the adapter 40 and calculate the current limiting point I _limt of the adapter 40 , where I _limt =P _c1 /Vdd=P0/Vdd. Depending on the type of the adapter 40 , the manner in which the controller 50 obtains the rated working voltage Vdd of the adapter 40 is the same as that described above, and will not be repeated here.

Next, the controller 50 may generate a current limit control command according to the calculated current limit point I _limt , so that the charge and discharge manager 30 may limit the current output by the adapter 40 to the load 20 to the above current limit point I _limt . At this time, the charge-discharge manager 30 can limit the power supply output from the adapter 40 to the first power supply power P _c1 (P _c1 =P0 ) according to the above-mentioned current limiting control instruction sent by the controller 50 , so that the charge-discharge management can be achieved. This is for the purpose of limiting the power output from the adapter 40 received by the battery 130 by the controller 30 .

As can be seen from the above, when the power of the load 20 reaches the above-mentioned preset load power P0, the electronic device 01 that works with the preset load power P0 is operated, and the battery temperature T _batt of the battery 130 is less than the preset temperature threshold T _th (for example, 45°C). Therefore, when the controller 50 limits the power supply output from the adapter 40 to the preset load power P0, it can be ensured that the battery temperature T _batt of the battery 130 is less than the preset temperature threshold T _th (eg, 45° C.) under the above ambient temperature.

On this basis, when the first power supply P _c1 (P _c1 =P0) provided by the adapter 40 to the load is less than the rated power supply P _init of the adapter 40, the notch power of the adapter (P _init -P _c1 =P _init - The part of P0) can be compensated by the discharge of the battery 130. It can be seen from the above that the battery 130 is discharged to compensate the notch power P _d1 (P _d1 =P _init −P _c1 ) of the adapter.

It can be seen from the above that the sum of the first preset discharge power P _batt1 of the battery 130 and the preset load power P0 provided by the adapter 40 to the load satisfies P0+P _{batt1 ≥P max} , that is, the charge and discharge manager 30 supplies power output by the adapter 40 . When the power is limited to the preset load power P0, the sum of the preset load power P0 of the adapter 40 and the first preset discharge power P _batt1 of the battery 130 is greater than or equal to the rated power supply power P _init of the adapter 40 , so it is sufficient to drive the load 20 for Work. Similarly, after the battery 130 is discharged, the capacity of the battery 130 decreases, which is beneficial to the decrease of the temperature of the battery 130 and effectively reduces the probability of the bulge phenomenon of the battery 130 .

S208 , the controller 50 sets the current limiting point I _limt of the adapter, and the controller 50 takes the sum of the preset load power P0 and the preset power margin P _gap as the first power supply power P _c1 . The charge and discharge manager 30 limits the power supply received by the battery 130 and output from the adapter 40 .

In the process of performing the above S208, the controller 50 takes the sum of the preset load power P0 and the preset power margin P _gap as the first power supply power P _c1 , that is, P _c1 =P0+P _gap . The controller 50 can obtain the rated working voltage Vdd of the adapter 40 and calculate the current limiting point I _limt of the adapter 40 , where I _limt =P _c1 /Vdd=(P0+P _gap )/Vdd, so that the charge and discharge manager can be reached 30 is for the purpose of limiting the power supply output from the adapter 40 received by the battery 130 .

Next, the controller 50 may generate a current limit control command according to the calculated current limit point I _limt , so that the charge and discharge manager 30 may limit the current output by the adapter 40 to the load 20 to the above current limit point I _limt . At this time, the charge-discharge manager 30 can limit the power supply output by the adapter 40 to the first power supply power P _c1 (P _c1 =P0+P _gap ) according to the above-mentioned current limiting control instruction sent by the controller 50 , so as to achieve the The purpose of the charge and discharge manager 30 is to limit the power supply received by the battery 130 and output from the adapter 40 . Similarly, when the controller 50 limits the power supply output from the adapter 40 to the preset load power P0, it can ensure that the battery temperature T _batt of the battery 130 is less than the preset temperature threshold T _th (eg, 45° C.).

However, since the sum of the first preset discharge power P _batt1 of the battery 130 and the preset load power P0 provided by the adapter 40 to the load satisfies P0+P _bat <P _max , that is, the power supply power output by the adapter 40 by the charge and discharge manager 30 When limited to the preset load power P0, the sum of the preset load power P0 and the first preset discharge power P _batt1 of the battery 130 is not enough to drive the load 20 to work. Therefore, in order to ensure that the adapter 40 (operating in the AC mode) and the battery 130 (operating in the DC mode) can jointly drive the load 20 to work, it is necessary to set the power corresponding to the current limiting point I _limt of the adapter 40 within the preset load power P0 On the basis, a certain margin P _gap is added. Wherein, P _gap =P _max -P0 -P _batt1 .

In this way, when the power supply provided by the adapter 40 to the load is limited to the first power supply P _c1 (P _c1 =P0+P _gap ), the part of the adapter’s gap power (P _init −P _c1 ) can be supplied by the battery 130 discharge to compensate. Therefore, after the battery 130 is discharged, the capacity of the battery 130 is reduced, which is beneficial to the reduction of the temperature of the battery 130 and effectively reduces the probability of the bulge phenomenon of the battery 130 .

S209, the controller 50 determines whether the battery 130 is in a safe state.

This S209 is the same as S106 in Example 1. When the controller 50 judges that the battery 130 is in a safe state, the following S210 is performed. Alternatively, when the controller 50 can determine that the battery 130 is still in a high-temperature and high-capacity state, the above-mentioned S203 to S209 are repeatedly executed until the battery 130 is in a safe state.

S210: The controller 50 sends a recovery instruction to the charge and discharge manager 30, and the charge and discharge manager 30 controls the adapter 40 to output the rated power supply P _init .

After the above-mentioned S209 is performed, the above-mentioned S210 may be performed, so that the charge-discharge manager 30 can control the adapter 40 to output the rated power supply power P _init after receiving the recovery instruction from the controller 50 . Therefore, when the battery 130 is in a safe state, the output power of the adapter 40 is no longer limited by the charge and discharge manager 30, but returns to the original initial value.

S211 , whether to maintain the current battery capacity C _batt .

This S211 is the same as S108 in Example 1, and a partial charge mode button 21 as shown in FIG. 8B can be set on the operation interface of the electronic device 01 . After the execution of the above S209 is completed, if the user triggers the above-mentioned partial charge mode button 21, the following S212 is executed. If the user does not trigger the above-mentioned partial charge mode button 21, the above-mentioned S201 is executed.

S212 , if the battery capacity C _batt of the battery 130 reaches the preset capacity threshold C _th , stop charging the battery.

S212 is the same as S109 in Example 1. If the controller 50 detects that the battery capacity C _batt of the battery 130 reaches the preset capacity threshold C _th , the charge and discharge manager 30 controls the adapter 40 to stop charging the battery 130 . If the battery capacity of the battery 130 does not reach the preset capacity threshold C _th , the charge and discharge manager 30 controls the adapter 40 to continue charging the battery 130 .

Similarly, the controller 50 continuously monitors the battery temperature T _batt , the cell voltage V _batt and the battery capacity C _batt of the battery 130 , so as to repeatedly execute the above S201 - S212 . In this way, as long as the battery 130 is in the above-mentioned high temperature and high pressure state, the charge and discharge manager 30 will limit the power supply power output by the adapter 40 to the first power supply power P _c1 . At this time, the notch power of the adapter (P _init −P _c1 ) is compensated by the discharge of the battery 130 . At this time, as can be seen from the above, the adapter 40 and the battery 130 jointly drive the load 20 to work. After the battery 130 is discharged, the capacity of the battery 130 decreases, which is conducive to reducing the temperature of the battery 130 and effectively reduces the probability of the bulge phenomenon of the battery 130 .

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art who is familiar with the technical scope disclosed in the present application can easily think of changes or replacements, which should cover within the scope of protection of this application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (19)

1. A control method for an electronic device, characterized in that the electronic device includes a battery, a load, a charge and discharge manager, and a controller; the charge and discharge manager is electrically connected to the battery, the load and an adapter, and the charge and discharge manager is electrically connected to the battery, the load and the adapter. A controller is electrically connected to the battery and the charge and discharge manager; the method includes:

   The charge-discharge manager controls the adapter to supply power to the load and charge the battery;

   During the first preset time, when the controller determines that at least one of the conditions of the battery temperature exceeding the preset temperature threshold T _th and the cell voltage exceeding the preset voltage threshold V _th are satisfied, the charge and discharge manager will The power supply power output by the adapter is limited to the first power supply power P _c1 ;

   Wherein, the first power supply P _c1 , the rated power supply P _init of the adapter, and the first preset discharge power P _batt1 of the battery satisfy: P _c1 +P _{batt1 ≥P init} ; the first preset The discharge power P _batt1 is a preset discharge power matching the current battery capacity of the battery;

   The charge and discharge manager controls the discharge of the battery, and the discharge power of the battery is less than or equal to the first preset discharge power P _batt1 .
2. The control method of electronic equipment according to claim 1, wherein,

   Before the charge and discharge manager limits the power supply output by the adapter to the first power supply power P _c1 , the method further includes: the controller obtains the rated working voltage Vdd of the adapter, and calculates the power supply of the adapter. Current limiting point I _limt , I _limt =P _c1 /Vdd;

   The charging and discharging manager limiting the power supply power output by the adapter to the first power supply power P _c1 includes: the charging and discharging manager limiting the current output by the adapter to the load to the current limiting point I _limt .
3. The method for controlling an electronic device according to claim 2, wherein before the controller calculates the current limiting point I _limt of the adapter, the method further comprises:

   The controller calculates the difference between the current load power P _sys of the load and the second preset discharge power P _batt2 of the battery as the first power supply power P _c1 , where P _{batt2 ≤P batt1} .
4. The control method of an electronic device according to claim 2, wherein the electronic device further comprises a housing in contact with the battery; before the controller calculates the current limiting point I _limt of the adapter, the The method also includes:

   The controller collects the housing temperature of the electronic device and calculates the ambient temperature;

   The controller obtains a preset load power P0 matching the ambient temperature from the preset correspondence; when the load operates in each of the preset load powers P0 in the preset correspondence, the the battery temperature is less than the preset temperature threshold T _th ;

   The controller obtains the rated working voltage Vdd of the adapter and the maximum load power P _max of the load; when P0+P _{batt1 ≥} P _max , the controller uses the preset load power P0 as the the first power supply P _c1 .
5. The control method of an electronic device according to claim 2, wherein the electronic device further comprises a housing in contact with the battery; before the controller calculates the current limiting point I _limt of the adapter, the The method also includes:

   The controller collects the housing temperature of the electronic device and calculates the ambient temperature;

   The controller obtains a preset load power P0 matching the ambient temperature from the preset correspondence; when the load operates in each of the preset load powers P0 in the preset correspondence, the the battery temperature is less than the preset temperature threshold T _th ;

   The controller obtains the rated working voltage Vdd of the adapter and the maximum load power _Pmax of the load;

   When P0+P _batt1 <P _max , the controller uses the sum of the preset load power P0 and the preset power margin P _gap as the first power supply power P _c1 ; wherein, P _gap =P _max − P0-P _batt1 .
6. The method for controlling an electronic device according to any one of claims 1-5, wherein the controller determines that at least one of the battery temperature exceeds a preset temperature threshold T _th and the cell voltage exceeds a preset voltage threshold V _th Before a condition is met, the method further includes:

   The controller acquires the battery temperature, the cell voltage and the battery capacity, and acquires the current load power P _sys of the load and the first preset discharge power P _batt1 .
7. The method for controlling an electronic device according to claim 6, wherein the obtaining, by the controller, the current load power P _sys of the load comprises:

   The controller collects the load power output by the charge and discharge manager to the load multiple times within a second preset time;

   The controller calculates an average value of a plurality of the load powers collected within the second preset time as the current load power P _sys .
8. The method for controlling an electronic device according to claim 7, wherein the controller, within the second preset time, collects the load power output by the charge and discharge manager to the load multiple times, comprising:

   The controller collects the load power output by the charge and discharge manager to the load every 10ms, and collects the load continuously for 5-10 times.
9. The method for controlling an electronic device according to claim 2, wherein the obtaining, by the controller, the rated working voltage Vdd of the adapter comprises:

   the charge and discharge manager receives the voltage output by the adapter; the charge and discharge manager outputs an in-position command to the controller, where the in-position command is used to instruct the adapter to be electrically connected to the charge and discharge manager;

   The controller uses the preset voltage as the rated working voltage Vdd of the adapter according to the in-position instruction.
10. The control method of an electronic device according to claim 2, wherein the electronic device further comprises a detector electrically connected to the adapter and the controller; the controller obtains the rated operation of the adapter Voltage Vdd includes:

    The detector detects the rated working voltage of the adapter and sends the rated working voltage to the controller.
11. The control method for an electronic device according to any one of claims 1-10, wherein after the battery is discharged, the method further comprises:

    When the controller determines that the battery temperature is less than a preset temperature threshold and the cell voltage is less than the preset voltage threshold, the charge and discharge manager controls the rated power supply P _init output by the adapter .
12. The method for controlling an electronic device according to claim 10, wherein after the charge and discharge manager controls the rated power supply P _init output by the adapter, the method further comprises:

    The charge and discharge manager receives a user operation, and if the controller determines that the battery capacity of the battery reaches a preset capacity threshold C _th , the charge and discharge manager controls the adapter to stop charging the battery; wherein, The preset capacity threshold C _th is smaller than the maximum battery capacity C _max of the battery.
13. The control method of an electronic device according to claim 1, wherein the preset temperature threshold is 45°C; the preset voltage threshold is 4V.
14. An electronic device, characterized in that the electronic device comprises:

    load;

    a battery for supplying power to the load;

    a controller, configured to determine whether the battery temperature exceeds the preset temperature threshold T _th and whether the cell voltage exceeds the preset voltage threshold V _th within the first preset time;

    a charge-discharge manager, electrically connected to the battery, the load, the adapter and the controller; the charge-discharge manager is used for when the controller determines that the battery temperature exceeds the preset temperature threshold T _th , the When at least one condition of the cell voltage exceeding the preset voltage threshold V _th is satisfied, the power supply output by the adapter is limited to the first power supply power P _c1 ; the charge and discharge manager is further configured to control the battery discharge;

    Wherein, the first power supply P _c1 , the rated power supply P _init of the adapter, and the first preset discharge power P _batt1 of the battery satisfy: P _c1 +P _{batt1 ≥P init} ; the first preset The discharge power P _batt1 is a preset discharge power matching the current battery capacity of the battery; the discharge power of the battery is less than or equal to the first preset discharge power P _batt1 .
15. The electronic device according to claim 14, wherein before the charge and discharge manager limits the power supply output by the adapter to the first power supply power P _c1 , the controller is further configured to acquire the power supply of the adapter. Rated working voltage Vdd, calculate the current limiting point I _limt of the adapter; where, I _limt =P _c1 /Vdd;

    The charging and discharging manager is configured to limit the power supply output by the adapter to the first power supply power P _c1 , including: the charging and discharging manager is configured to limit the current output by the adapter to the load to the current limiting point I _limt .
16. The electronic device according to claim 15, wherein before the controller calculates the current limiting point I _limt of the adapter, the controller is further configured to calculate the current load power P _sys of the load and the The difference between the second preset discharge power P _batt2 of the battery is used as the first power supply power P _c1 , where P _{batt2 ≤P batt1} .
17. The electronic device according to claim 15, characterized in that, the electronic device further comprises a housing in contact with the battery; before the controller calculates the current limiting point I _limt of the adapter, the controller It is also used to collect the shell temperature of the electronic device, calculate the ambient temperature, obtain the preset load power P0 matching the ambient temperature from the preset correspondence, obtain the rated working voltage Vdd of the adapter and all the maximum load power P _max of the load, when P0+P _{batt1 ≥} P _max , the preset load power P0 is used as the first power supply power P _c1 ;

    Wherein, when the load operates at each of the preset load powers P0 in the preset correspondence, the battery temperature is less than the preset temperature threshold T _th .
18. The electronic device according to claim 15, characterized in that, the electronic device further comprises a housing in contact with the battery; before the controller calculates the current limiting point I _limt of the adapter, the controller It is also used to collect the shell temperature of the electronic device, calculate the ambient temperature, obtain the preset load power P0 matching the ambient temperature from the preset correspondence, obtain the rated working voltage Vdd of the adapter and all The maximum load power P _max of the load, when P0+P _batt1 <P _max , the controller uses the sum of the preset load power P0 and the preset power margin P _gap as the first power supply power P _c1 ;

    Wherein, when the load operates at each of the preset load powers P0 in the preset correspondence, the battery temperature is less than the preset temperature threshold T _th ; P _gap =P _max -P0 -P _batt1 .
19. The electronic device according to claim 14, wherein the preset temperature threshold is 45°C; the preset voltage threshold is 4V.

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