Smart Battery Temperature Compensation Method

Abstract

To provide a battery temperature compensation method that equalizes a battery temperature to a simulation battery temperature through a plurality of cooling operations.SOLUTION: A smart battery temperature compensation method includes: a step of detecting the battery temperature of a battery device in electronic equipment; a step of determining whether the difference between the battery temperature and the simulation battery temperature of the battery device is equal to or less than an allowable value, the simulation battery temperature being simulated according to the current power consumption of the electronic equipment; and a step of executing multistep cooling operations until the difference between the battery temperature of the battery device and the simulation battery temperature becomes equal or less than the allowable value when it is determined that the difference between the battery temperature of the battery device and the simulation battery temperature is not equal to or less than the allowable value.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] This application claims priority to Taiwan Patent Application No. 112101957, filed on January 17, 2023, all of which are incorporated herein by reference.

[0002] The present invention relates to a battery temperature compensation method, and more particularly to a battery temperature compensation method that uses multiple cooling operations to match a battery temperature to a simulated battery temperature. [Background technology]

[0003] With the development of technology, many of the existing electronic devices, such as servers, electric vehicles and mobile devices, are powered by battery devices. A temperature sensor is usually installed in the battery device to detect the battery temperature of the battery device in these electronic devices. The detected battery temperature can be used for various applications. For example, it can be determined whether the battery is undesirably high temperature, so that various protection mechanisms can be used to prevent the battery from being damaged.

[0004] However, the battery device in the existing electronic device has a large area, and the temperature sensor detects the battery temperature of the battery device using only one detection point. In other words, the battery temperature detected by the temperature sensor is not the average battery temperature of the entire battery device. Therefore, a method for compensating the battery temperature is required to make the detected battery temperature match the simulated battery temperature. Summary of the Invention [Problem to be solved by the invention]

[0005] A battery temperature compensation method is provided that uses multiple cooling actions to match the battery temperature to a simulated battery temperature. [Means for solving the problem]

[0006] The present disclosure provides a smart battery temperature compensation method, which includes the steps of detecting a battery temperature of a battery device in an electronic device, and determining whether a difference between the battery temperature and a simulated battery temperature of the battery device is within a tolerance. The simulated battery temperature is simulated according to a current power consumption of the electronic device. When the smart battery temperature compensation method determines that the difference between the battery temperature of the battery device and the simulated battery temperature is not within a tolerance, the smart battery temperature compensation method performs a multi-stage cooling operation until the difference between the battery temperature of the battery device and the simulated battery temperature is within a tolerance.

[0007] To describe the manner in which the above-mentioned and other advantages and features of the present invention are obtained, the principles briefly outlined above will now be more particularly described with reference to specific embodiments illustrated in the drawings. It should be understood that these drawings are illustrative of the invention and are not limiting. The principles of the invention will be explained by the illustrations of the drawings and by the interpretation of the added features and details. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a schematic diagram of an electronic device according to some embodiments of the present disclosure. [Diagram 2] FIG. 1 is a schematic diagram of a battery arrangement according to some embodiments of the present disclosure. [Diagram 3] FIG. 1 is a schematic diagram of an electronic device according to some embodiments of the present disclosure. [Figure 4] 4 is a flow chart of a battery temperature compensation method according to some embodiments of the present disclosure illustrating a method for classifying an electronic device as being in light, medium, or heavy load operation. [Diagram 5] 4 is a flow chart of a battery temperature compensation method according to some embodiments of the present disclosure, illustrating a battery temperature compensation method for an electronic device under light load operation. [Figure 6] 4 is a flow chart of a battery temperature compensation method according to some embodiments of the present disclosure, illustrating a battery temperature compensation method for an electronic device under medium load operation. [Figure 7A] 4 is a flow chart of a battery temperature compensation method according to some embodiments of the present disclosure, illustrating a battery temperature compensation method for an electronic device under high load operation. [Figure 7B] 4 is a flow chart of a battery temperature compensation method according to some embodiments of the present disclosure, illustrating a battery temperature compensation method for an electronic device under high load operation. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] In the following disclosure, many different embodiments or examples for implementing different features of the present invention are provided. In order to briefly explain the present disclosure, specific embodiments of elements and arrangements are described below. These are, of course, merely for illustration and are not intended to be limiting. For example, in the following disclosure, a first feature formed above or on a second feature can include embodiments in which the first and second features are formed in direct contact, and can also include embodiments in which an additional feature is formed between the first and second features such that the first and second features are not in direct contact. In addition, repeated symbols or labels may be used in different embodiments, and these repetitions are only intended to simplify and clarify the present disclosure and do not imply a specific relationship between the different embodiments and / or structures described.

[0010] For purposes of the detailed description, unless specifically stated otherwise, the singular includes the plural and the plural includes the singular, and the word "including" means "including but not limited to." Furthermore, approximation words such as "about," "almost," "substantially," "approximately," and the like may be used herein in the sense of, for example, "in, near, almost," or "within 3-5% of," or "tolerable manufacturing tolerance," or any logical combination thereof.

[0011] Additionally, spatially relative terms such as "lower," "below," "bottom," "top," "upper," "top" and the like are used for simplicity of description to describe the relationship of one element or feature to another element or feature in the figures. The spatially relative terms are intended to encompass different orientations of the device for use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is upside down, an element described as "below" or "below" the other element or feature would be oriented "above" the other element or feature. Thus, the exemplary term "lower" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at another orientation) and the spatially relative descriptions used herein may be interpreted accordingly.

[0012] The terms used herein are for describing particular embodiments only and are not intended to be limiting of the present invention. As used herein, the singular forms "a," "an," and "the" include the plural forms unless the context clearly dictates otherwise. Furthermore, the terms "including," "having," or variations thereof, where used in the detailed description and / or claims, are intended to be as inclusive as the term "comprising."

[0013] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those skilled in the art. Furthermore, terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense unless expressly defined herein.

[0014] 1 is a schematic diagram of an electronic device 100 according to some embodiments of the present disclosure. The electronic device 100 includes a processor 102 and a battery device 104. The battery device 104 further includes battery cells 106A, 106B, 106C, and 106D (which may be collectively referred to as battery cells 106), a circuit board 108, and temperature sensors 110A and 110B (which may be collectively referred to as temperature sensors 110). The battery device 104 is coupled to the processor 102 and communicates with the electronic device 100. Specifically, the battery cells 106 are connected to the circuit board 108, and the temperature sensor 110 is disposed on the circuit board 108. The circuit board 108 is coupled to the processor 102, thereby allowing the power stored in the battery cells 106 to be transmitted to the processor 102 of the electronic device 100, and the battery temperature of the battery device 104 sensed by the temperature sensor 110 to be transmitted to the processor 102 of the electronic device 100. It should be understood that other configurations and the inclusion or omission of different items may be possible in electronic device 100. Electronic device 100 is illustrative and is not intended to be limiting beyond what is expressly recited in the claims.

[0015] As shown in FIG. 1, in some embodiments, the temperature sensor 110A is disposed on the circuit board 108 and is disposed adjacent to the right side of the battery cells 106A and 106B, and the temperature sensor 110B is also disposed on the circuit board 108 and is disposed adjacent to the left side of the battery cells 106C and 106D. Each temperature sensor 110 only uses its position as a detection point to detect the battery temperature of the battery cell 106, and the battery cells 106A, 106B, 106C, and 106D have a large area (relative to the respective detection points of the temperature sensors 110A and 110B). Therefore, the battery temperature of the battery device 104 detected by the temperature sensor 110 is not the whole battery temperature. Therefore, a temperature compensation method is needed to reduce the difference between the battery temperature detected by the temperature sensor 110 and the simulated whole battery temperature.

[0016] 2 is a schematic diagram of a battery device 104 according to some embodiments of the present disclosure. As shown in FIG. 2, the battery device 104 described above may further include a battery cell 106, a temperature sensor 110, a management chip 112, a sensing resistor 114, a charging transistor 116, a discharging transistor 118, a sub-management chip 120, and a fuse 122. It should be understood that other configurations and the inclusion or omission of different items may be possible in the battery device 104. The battery device 104 is exemplary and is not intended to be limited beyond what is expressly recited in the claims.

[0017] The battery cell 106 can store power. In this embodiment, the battery cell 106 can be a lithium-ion battery. A lithium-ion battery is a rechargeable battery (secondary battery) that operates by transferring lithium ions between a positive electrode and a negative electrode. The positive electrode of a lithium-ion battery is generally composed of a metal oxide containing lithium ions, and the negative electrode is a lattice generally composed of graphite. During charging, the lithium ions move toward the graphite lattice. The process of lithium ions entering the positive electrode (metal oxide) is called intercalation, and the process of exiting is called deintercalation. The process of lithium ions entering the negative electrode (graphite lattice) is called insertion, and the process of exiting is called extraction.

[0018] The management chip 112 is connected to the battery cell 106 and detects the voltage or capacity of the battery cell 106. The charge transistor 116 and the discharge transistor 118 are coupled between the battery cell 106 and the positive pole P+ of the battery device 104. The management chip 112 is connected to the charge transistor 116 and the discharge transistor 118 and controls the charge transistor 116 and the discharge transistor 118, thereby controlling the charging and discharging of the battery device 104. For example, the charge transistor 116 changes its state according to a control signal sent by the management chip 112 via a control line 124. For example, when the control signal on the control line 124 is "0", the charge transistor 116 only allows current to flow from node B to node A and prohibits current to flow from node A to node B. When the control signal on the control line 124 is "1", the charge transistor 116 is fully on. In some embodiments, the discharge transistor 118 changes its state according to a control signal sent by the management chip 112 via a control line 126. For example, when the control signal on control line 126 is "0", discharge transistor 118 only allows current to flow from node A to node B and does not allow current to flow from node B to node A. When the control signal on control line 126 is "1", discharge transistor 118 is fully on.

[0019] When the battery device 104 is connected to an external power source (e.g., a DC power source or a DC power source converted from an AC power source), the management chip 112 sends a control signal "1" to the charging transistor 116 and a control signal "0" to the discharging transistor 118, so that the battery cell 106 can be connected to the external power source, and the received power can be stored in the battery cell 106. When the management chip 112 sends a control signal "0" to the charging transistor 116 and a control signal "0" to the discharging transistor 118, the battery cell 106 can be disconnected from the external power source, and thus the battery device 104 stops being charged.

[0020] When the management chip 112 sends a control signal "0" to the charging transistor 116 and a control signal "1" to the discharging transistor 118, the battery cell 106 can be connected to the processor 102 of the electronic device 100, thereby allowing the battery device 104 to supply power to the electronic device 100. When the management chip 112 sends a control signal "0" to the charging transistor 116 and a control signal "0" to the discharging transistor 118, the battery cell 106 can be disconnected from the electronic device 100, thereby causing the battery device 104 to stop supplying power.

[0021] The management chip 112 is an integrated circuit device including a processor, a microprocessor, a controller, a memory, other suitable integrated circuits, or a combination thereof. The management chip 112 can detect the voltage, capacity, etc. of the battery cells 106 (or the battery device 104) and control the battery device 104 according to the detected data.

[0022] The sensing resistor 114 is coupled to the battery cell 106, the management chip 112, and the negative pole P- of the battery device 104. The sensing resistor 114 can detect the discharge current of the battery device 104. In some embodiments, when the battery device 104 is connected to the processor 102 of the electronic device 100, the management chip 112 can check whether the discharge current of the battery device 104 detected by the sensing resistor 114 exceeds a protection value. If the discharge current of the battery device 104 exceeds the protection value, the management chip 112 can control the charging transistor 116 and the discharging transistor 118 to stop the battery device 104 from supplying power, to avoid damage or danger to the battery device 104.

[0023] The fuse 122 is connected between the battery cell 106 and the charging transistor 116. The sub-management chip 120 is coupled to the fuse 122, the management chip 112, and the battery cell 106. The sub-management chip 120 and the fuse 122 function as a secondary protection for the battery device 104. For example, when the main management chip 112 detects that the charging transistor 116 and the discharging transistor 118 fail and cannot be turned off, causing the battery device 104 to stop supplying power, the management chip 112 instructs the sub-management chip 120 to cut the fuse 122, causing the battery device 104 to stop supplying power. The sub-management chip 120 is also an integrated circuit device that may include a processor, a microprocessor, a controller, a memory, other suitable integrated circuits, or a combination thereof.

[0024] In this embodiment, the battery device 104 further includes a number of pins. As shown in Fig. 2, the battery device 104 further includes a clock pin SMBUS_CLOCK, a data pin SMBUS_DATA, an identification pin Battery_ID, and an identification pin System_ID. The battery device 104 can communicate with the processor 102 of the electronic device 100 via the clock pin SMBUS_CLOCK and the data pin SMBUS_DATA. The identification pin Battery_ID allows the electronic device 100 to be powered by the battery device 104 and to identify the battery device 104. The identification pin System_ID allows the battery device 104 to identify the electronic device 100 powered by the battery device 104.

[0025] 3 is a schematic diagram of an electronic device 100 according to some embodiments of the present disclosure. As shown in FIG. 3, the above-mentioned electronic device 100 may further include a processor 102, a battery device 104, a selector 202, a battery charger 204, a host power supply unit 206, a power management unit 208, at least one fan 210, a display 212, and a plurality of universal serial bus (USB) ports 214.

[0026] The power source 200 is connected to a selector 202 of the electronic device 100. The selector 202 is coupled to a battery charger 204 and a host power unit 206, and selects to transmit the power provided by the power source 200 to the battery charger 204 or the host power unit 206. If the selector 202 transmits power to the battery charger 204, the battery charger 204 further transmits power to the battery device 104 to charge the battery device 104. If the selector 202 transmits power to the host power unit 206, the host power unit 206 further transmits power to the power management unit 208, which then transmits power to the processor 102 to power the electronic device 100. When the power source 200 is disconnected from the electronic device 100 or when the power source 200 stops supplying power, the battery device 104 transmits power to the processor 102 via the battery charger 204, the selector 202, the host power unit 206, and the power management unit 208 to supply power to the electronic device 100. The battery device 104 is also connected to the processor 102 via a signal line 218. It should be noted that the signal line 218 only allows the battery device 104 to communicate with the processor 102, but does not allow the battery device 104 to transmit power to the processor 102. In addition, as shown in FIG. 3, the battery charger 204 is also connected to the processor 102 via a signal line 216. In some embodiments, the processor 102 is also connected to a fan 210, a display 212, and a USB port 214.

[0027] As described above, the present disclosure implements a temperature compensation method to reduce the difference between the battery temperature detected by the temperature sensor 110 and the simulated overall battery temperature (sometimes referred to as the simulated battery temperature), so that the detected battery temperature does not exceed the simulated battery temperature. Specifically, the processor 102 can simulate the simulated battery temperature of the battery device 104 according to the current power consumption of the electronic device 100, and the temperature sensor 110 (shown in FIG. 2) of the battery device 104 detects the battery temperature of the battery device 104. Then, the management chip 112 (shown in FIG. 2) of the battery device 104 compares the simulated battery temperature with the battery temperature detected by the temperature sensor 110. If the management chip 112 determines that the difference between the detected battery temperature and the simulated battery temperature is not within the tolerance, the electronic device 100 performs a multi-level cooling operation until the difference between the detected battery temperature and the simulated battery temperature of the battery device 104 is within the tolerance.

[0028] The multi-stage cooling operation in the embodiment of the present disclosure includes a first stage cooling operation, a second stage cooling operation, a third stage cooling operation, a fourth stage cooling operation, a fifth stage cooling operation, a sixth stage cooling operation, and a seventh stage cooling operation. Each subsequent stage cooling operation has a higher cooling effect than the previous stage cooling operation. For example, the fifth stage cooling operation has a higher cooling effect than the fourth stage cooling operation. If any stage cooling operation of the multi-stage cooling operation performed by the electronic device 100 cannot effectively bring the difference between the detected battery temperature of the battery device 104 and the simulated battery temperature within the tolerance, the electronic device 100 can perform the next cooling operation of the multi-stage cooling operation until the difference between the detected battery temperature of the battery device 104 and the simulated battery temperature is within the tolerance. In some embodiments, after performing any stage of the multi-stage cooling operation, after a 60 second interval, it is determined whether the difference between the detected battery temperature and the simulated battery temperature is within a tolerance, and then it is determined whether to perform the next stage of the cooling operation.

[0029] When the electronic device 100 performs the first stage cooling operation, the processor 102 increases the rotation speed of the fan 210. For example, the rotation speed of the fan 210 increases from 1500 RPM to 3500 RPM.

[0030] When the electronic device 100 performs the second stage cooling operation, the battery device 104 instructs the processor 102 via the signal line 218 to set the operating frequency of the processor 102 to 75% of the maximum operating frequency of the processor 102. For example, if the maximum operating frequency of the processor 102 is 1200 MHz, the operating frequency of the processor 102 is set to 900 MHz when the electronic device 100 performs the second stage cooling operation.

[0031] When the electronic device 100 executes the third stage cooling operation, the battery device 104 instructs the processor 102 via the signal line 218 to set the operating frequency of the processor 102 to 50% of the maximum operating frequency of the processor 102. For example, if the maximum operating frequency of the processor 102 is 1200 MHz, the operating frequency of the processor 102 is set to 600 MHz when the electronic device 100 executes the third stage cooling operation.

[0032] When the electronic device 100 executes the fourth stage cooling operation, the battery device 104 instructs the processor 102 via the signal line 218 to set the operating frequency of the processor 102 to 25% of the maximum operating frequency of the processor 102. For example, if the maximum operating frequency of the processor 102 is 1200 MHz, the operating frequency of the processor 102 is set to 300 MHz when the electronic device 100 executes the fourth stage cooling operation.

[0033] When the electronic device 100 executes the fifth stage cooling operation, the battery device 104 instructs the processor 102 via the signal line 216 to set the operating frequency of the processor 102 to 25% or less of the maximum operating frequency of the processor 102. For example, if the maximum operating frequency of the processor 102 is 1200 MHz, the operating frequency of the processor 102 is set to less than 300 MHz when the electronic device 100 executes the fifth stage cooling operation.

[0034] It should be noted that the second to fourth stage cooling operations are performed by the battery device 104 instructing the processor 102 via the signal line 218, and the fifth stage cooling operation is performed by the battery charger 204 instructing the processor 102 via the signal line 216. When the processor 102 receives an instruction from the battery device 104, the processor 102 sets the operating frequency of the processor 102 using a software mechanism, and when the processor 102 receives an instruction from the battery charger 204, the processor 102 sets the operating frequency of the processor 102 by a hardware mechanism. The speed of setting the operating frequency by the hardware mechanism is faster than that by the software mechanism. Therefore, the fifth stage cooling operation can reduce the battery temperature of the battery device 104 more quickly and effectively.

[0035] In some embodiments, if the current operating frequency of the processor 102 is already lower than the operating frequency set for the cooling operation, the next stage of the cooling operation is performed. For example, as described above, if the maximum operating frequency of the processor 102 is 1200 MHz, the operating frequency of the processor 102 is set to 600 MHz when the electronic device 100 performs the third stage of the cooling operation. However, if the current operating frequency of the processor 102 is already 600 MHz or lower (e.g., 500 MHz) when the third stage of the cooling operation is performed, the next stage of the cooling operation (e.g., the fourth stage of the cooling operation) is performed and the operating frequency of the processor 102 is set to 300 MHz.

[0036] When the electronic device 100 performs the sixth stage cooling operation, the processor 102 reduces the brightness of the display 212. For example, the brightness of the display 212 is reduced from 80 to 50.

[0037] When the electronic device 100 executes the seventh stage cooling operation, the processor 102 closes the USB port 214. For example, the USB port 214 is closed, and thus, an external device (e.g., a keyboard, a mouse, a microphone, an external hard drive, a USB storage device, etc.) connected to the electronic device 100 via the USB port 214 is disconnected from the electronic device 100.

[0038] FIG. 4 is a flow chart of a battery temperature compensation method 300 according to some embodiments of the present disclosure, illustrating a method for classifying the electronic device 100 as being in light load operation, medium load operation, or high load operation. In operation 302, the processor 102 determines whether the current power consumption of the electronic device 100 is in light load operation, medium load operation, or high load operation. Specifically, if the current power consumption of the electronic device 100 is between 1% and 35% of the maximum power consumption of the electronic device 100, the processor 102 determines that the electronic device 100 is in light load operation. Specifically, if the current power consumption of the electronic device 100 is between 36% and 75% of the maximum power consumption of the electronic device 100, the processor 102 determines that the electronic device 100 is in medium load operation. Specifically, if the current power consumption of the electronic device 100 is between 76% and 100% of the maximum power consumption of the electronic device 100, the processor 102 determines that the electronic device 100 is in high load operation. In other words, light load operation is defined as between 1% and 35% of the maximum power consumption of electronic device 100, medium load operation is defined as between 36% and 75% of the maximum power consumption of electronic device 100, and heavy load operation is defined as between 76% and 100% of the maximum power consumption of electronic device 100.

[0039] As shown in FIG. 4, if it is determined that the electronic device 100 is operating in a light load operation, a battery temperature compensation method 400 is executed. If it is determined that the electronic device 100 is operating in a medium load operation, a battery temperature compensation method 500 is executed. If it is determined that the electronic device 100 is operating in a high load operation, a battery temperature compensation method 600 is executed. FIG. 5 is a flowchart of a battery temperature compensation method according to some embodiments of the present disclosure, illustrating a battery temperature compensation method for the electronic device 100 in a light load operation. In operation 402, a battery temperature of the battery device 104 in the electronic device 100 is detected. Specifically, the temperature sensor 110 in the battery device 104 can detect the battery temperature of the battery device 104. In some embodiments, the temperature sensor 110 detects the battery temperature of the battery device 104 every 60 seconds.

[0040] In operation 404, the management chip 112 of the battery device 104 determines whether the battery temperature detected by the temperature sensor 110 is below 40° C. If it is below 40° C., the battery temperature compensation method 400 proceeds to operation 406;

[0041] In operation 406, the management chip 112 of the battery device 104 determines whether the difference between the battery temperature detected by the temperature sensor 110 and the simulated battery temperature of the battery device 104 is within the tolerance. If it is within the tolerance, the battery temperature compensation method 400 proceeds to operation 408, and if it is not within the tolerance, the battery temperature compensation method 400 proceeds to operation 410. In some embodiments, this tolerance is set to 3° C. or less in light load operation, but is not limited thereto. For example, assume that the simulated battery temperature of the battery device 104 is 33° C., and when the battery temperature detected by the temperature sensor 110 is 35° C., the difference is within the tolerance, and the battery temperature compensation method 400 proceeds to operation 408. Conversely, assume that the simulated battery temperature of the battery device 104 is 33° C., and when the battery temperature detected by the temperature sensor 110 is 37° C., the difference is not within the tolerance, and the battery temperature compensation method 400 proceeds to operation 410. In some embodiments, the simulated battery temperature of the battery device 104 is simulated by the processor 102 according to the current power consumption of the electronic device 100. In other embodiments, the simulated battery temperature of the battery device 104 is pre-simulated data stored in the electronic device 100 in advance.

[0042] In operation 408, if it is determined that the difference between the battery temperature detected by the temperature sensor 110 of the battery device 104 and the simulated battery temperature is within the tolerance (e.g., 3° ​​C. or less), the temperature sensor 110 continuously detects the battery temperature of the battery device 104. In other words, it is possible to return to operation 402 and detect the battery temperature of the battery device 104. In some embodiments, it is possible to return to operation 302 of the battery temperature compensation method 300 and re-determine whether the current power consumption of the electronic device 100 is in light load operation, medium load operation, or heavy load operation.

[0043] In operation 410, the multi-stage cooling operation described above is performed. In some embodiments, if the management chip 112 of the battery device 104 determines that the battery temperature detected by the temperature sensor 110 is not equal to or lower than 40° C., the multi-stage cooling operation described above is performed until the battery temperature of the battery device 104 is reduced to or lower than 40° C. In other embodiments, if the management chip 112 of the battery device 104 determines that the difference between the battery temperature detected by the temperature sensor 110 and the simulated battery temperature of the battery device 104 is not within a tolerance (e.g., 3° ​​C. or more), the multi-stage cooling operation described above is performed until the difference between the battery temperature detected by the temperature sensor 110 and the simulated battery temperature of the battery device 104 is within a tolerance (e.g., 3° ​​C. or less).

[0044] 6 is a flowchart of a battery temperature compensation method 500 according to some embodiments of the present disclosure, illustrating a battery temperature compensation method for the electronic device 100 under medium load operation. In operation 502, a battery temperature of the battery device 104 in the electronic device 100 is detected. Specifically, the temperature sensor 110 in the battery device 104 can detect the battery temperature of the battery device 104. In some embodiments, the temperature sensor 110 detects the battery temperature of the battery device 104 every 60 seconds.

[0045] In operation 504, the management chip 112 of the battery device 104 determines whether the battery temperature detected by the temperature sensor 110 is below 40° C. If it is below 40° C., the battery temperature compensation method 500 proceeds to operation 518;

[0046] In operation 506, the management chip 112 of the battery device 104 determines whether the battery temperature detected by the temperature sensor 110 is between 40° C. and 50° C. If it is between 40° C. and 50° C., the battery temperature compensation method 500 proceeds to operation 520; if it is not between 40° C. and 50° C., the battery temperature compensation method 500 proceeds to operation 508.

[0047] In operation 508, the management chip 112 of the battery device 104 determines whether the battery temperature detected by the temperature sensor 110 is between 50° C. and 60° C. If it is between 50° C. and 60° C., the battery temperature compensation method 500 proceeds to operation 522; if it is not between 50° C. and 60° C., the battery temperature compensation method 500 proceeds to operation 510.

[0048] In operation 510, the management chip 112 of the battery device 104 determines whether the battery temperature detected by the temperature sensor 110 is equal to or higher than 60° C. If it is equal to or higher than 60° C., the battery temperature compensation method 500 proceeds to operation 512, and if it is not equal to or higher than 60° C., since it was determined in operation 508 that the battery temperature is not between 50° C. and 60° C., an error may have occurred in the detection, and the battery temperature compensation method 500 proceeds to operation 502 to detect the battery temperature of the battery device 104 in the electronic device 100 again.

[0049] In operation 512, the management chip 112 of the battery device 104 determines whether the battery temperature detected by the temperature sensor 110 is greater than or equal to 63° C. If it is greater than or equal to 63° C., the battery temperature compensation method 500 proceeds to operation 516;

[0050] In operation 514, the multi-stage cooling operation described above is performed. However, it should be noted that since the battery temperature of the battery device 104 exceeds 60° C., it is necessary to reduce the battery temperature quickly and effectively. Therefore, in operation 514, the processor 102 closes the USB port 214 and performs the multi-stage cooling operation from the seventh stage cooling operation.

[0051] In operation 516, because the battery temperature of the battery device 104 exceeds 63° C., the electronic device 100 needs to be shut down to avoid damage to the battery device 104 or damage to the electronic device 100 caused by the battery device 104.

[0052] In operations 518, 520, and 522, the management chip 112 of the battery device 104 determines whether the difference between the battery temperature detected by the temperature sensor 110 and the simulated battery temperature of the battery device 104 is within a tolerance. If it is within the tolerance, the battery temperature compensation method 500 proceeds to operation 524, and if it is not within the tolerance, the battery temperature compensation method 500 proceeds to operation 526. In some embodiments, this tolerance during medium load operation is set to, but is not limited to, 5° C. or less.

[0053] In operation 524, if it is determined that the difference between the battery temperature detected by the temperature sensor 110 and the simulated battery temperature of the battery device 104 is within the tolerance (e.g., 5° C. or less), the temperature sensor 110 continuously detects the battery temperature of the battery device 104. In other words, it is possible to return to operation 502 and detect the battery temperature of the battery device 104. In some embodiments, it is possible to return to operation 302 of the battery temperature compensation method 300 and re-determine whether the current power consumption of the electronic device 100 is in light load operation, medium load operation, or heavy load operation.

[0054] The multi-stage cooling operation described above is performed in operation 526. In another embodiment, if it is determined that the difference between the battery temperature detected by the temperature sensor 110 and the simulated battery temperature of the battery device 104 is not within a tolerance (e.g., 5° C. or more), the multi-stage cooling operation described above is performed until the difference between the battery temperature detected by the temperature sensor 110 and the simulated battery temperature of the battery device 104 is within a tolerance (e.g., 5° C. or less).

[0055] 7A and 7B are flowcharts of a battery temperature compensation method 600 according to some embodiments of the present disclosure, illustrating a battery temperature compensation method for the electronic device 100 under high load operation. In operation 602, the battery temperature of the battery device 104 in the electronic device 100 is detected. Specifically, the temperature sensor 110 in the battery device 104 can detect the battery temperature of the battery device 104. In some embodiments, the temperature sensor 110 detects the battery temperature of the battery device 104 every 60 seconds.

[0056] In operation 604, the management chip 112 of the battery device 104 determines whether the battery temperature detected by the temperature sensor 110 is between 40° C. and 50° C. If it is between 40° C. and 50° C., the battery temperature compensation method 600 proceeds to operation 610; if it is not between 40° C. and 50° C., the battery temperature compensation method 600 proceeds to operation 606.

[0057] In operation 606, the management chip 112 of the battery device 104 determines whether the battery temperature detected by the temperature sensor 110 is between 50° C. and 60° C. If it is between 50° C. and 60° C., the battery temperature compensation method 600 proceeds to operation 612; if it is not between 50° C. and 60° C., the battery temperature compensation method 600 proceeds to operation 608.

[0058] In operation 608, the management chip 112 of the battery device 104 determines whether the battery temperature detected by the temperature sensor 110 is equal to or higher than 60° C. If it is equal to or higher than 60° C., the battery temperature compensation method 600 proceeds to operation 614; if it is not equal to or higher than 60° C., an error may have occurred in the detection because it was determined in operation 508 that the battery temperature is not between 50° C. and 60° C., and the battery temperature compensation method 600 proceeds to operation 602 to detect the battery temperature of the battery device 104 in the electronic device 100 again.

[0059] In operations 610, 612, 614, the management chip 112 of the battery device 104 determines whether the difference between the battery temperature detected by the temperature sensor 110 and the simulated battery temperature of the battery device 104 is within a first tolerance. If it is within the tolerance, the battery temperature compensation method 600 proceeds to operation 616, and if it is not within the tolerance, the battery temperature compensation method 600 proceeds to operation 618. In some embodiments, this first tolerance in high load operation is set to, but is not limited to, 8° C. or less.

[0060] In operation 606, if it is determined that the difference between the battery temperature detected by the temperature sensor 110 and the simulated battery temperature of the battery device 104 is within the allowable value (e.g., 8° C. or less), the temperature sensor 110 continuously detects the battery temperature of the battery device 104. In other words, it is possible to return to operation 602 and detect the battery temperature of the battery device 104. In some embodiments, it is possible to return to operation 302 of the battery temperature compensation method 300 and re-determine whether the current power consumption of the electronic device 100 is in light load operation, medium load operation, or heavy load operation.

[0061] In operation 618, the management chip 112 of the battery device 104 determines whether the difference between the battery temperature detected by the temperature sensor 110 and the simulated battery temperature of the battery device 104 is within a second tolerance. If it is within the second tolerance, the battery temperature compensation method 600 proceeds to operation 620, and if it is not within the tolerance, the battery temperature compensation method 600 proceeds to operation 622. In some embodiments, this second tolerance in high load operation is set to, but is not limited to, 9° C. or less.

[0062] In operation 620, the multi-stage cooling operation described above is performed. However, it should be noted that in order to quickly and effectively reduce the battery temperature, in operation 620, the multi-stage cooling operation is performed from the fifth stage cooling operation, and the operating frequency of the processor 102 is set to 25% or less of the maximum operating frequency of the processor 102.

[0063] In operation 622, the management chip 112 of the battery device 104 determines whether the difference between the battery temperature detected by the temperature sensor 110 and the simulated battery temperature of the battery device 104 is within a third tolerance. If it is within the second tolerance, the battery temperature compensation method 600 proceeds to operation 624, and if it is not within the second tolerance, the battery temperature compensation method 600 proceeds to operation 626. In some embodiments, this third tolerance in high load operation is set to, but is not limited to, 10° C. or less.

[0064] In operation 624, the multi-stage cooling operation described above is performed. However, it should be noted that in operation 624, the multi-stage cooling operation is performed from the sixth stage cooling operation to reduce the brightness of the display 212 in order to quickly and effectively reduce the battery temperature.

[0065] In operation 626, the management chip 112 of the battery device 104 determines whether the difference between the battery temperature detected by the temperature sensor 110 and the simulated battery temperature of the battery device 104 is within a fourth tolerance. If it is within the fourth tolerance, the battery temperature compensation method 600 proceeds to operation 628, and if it is not within the fourth tolerance, the battery temperature compensation method 600 proceeds to operation 630. In some embodiments, this fourth tolerance in high load operation is set to, but is not limited to, 11° C. or less.

[0066] In operation 628, the multi-stage cooling operation described above is performed. However, it should be noted that in order to quickly and effectively reduce the battery temperature, in operation 628, the multi-stage cooling operation is performed starting from the seventh stage cooling operation, and the processor 102 closes the USB port 214.

[0067] In operation 630, because the battery temperature of the battery device 104 exceeds 60° C. and the difference between the battery temperature of the battery device 104 and the simulated battery temperature is greater than 11° C. (the battery temperature exceeds 71° C.), it is necessary to shut down the electronic device 100 to avoid damage to the battery device 104 or damage to the electronic device 100 caused by the battery device 104.

[0068] While embodiments of the present disclosure provide certain advantages over the prior art, it should be understood that other embodiments may provide different advantages, and not all advantages are described herein, nor are all embodiments required to have a particular advantage. Using embodiments of the present disclosure, the apparatus and method of the present disclosure can quickly compensate the battery temperature of a battery device to match the detected battery temperature to a simulated battery temperature.

[0069] The above outlines features of some embodiments to enable those skilled in the art to better understand aspects of the present disclosure. Those skilled in the art will appreciate that they can readily use this disclosure as a basis for designing or modifying other processes and structures to carry out the same purposes and / or achieve the same advantages of the embodiments introduced herein. Those skilled in the art should also appreciate that such equivalent structures do not depart from the spirit and scope of the present disclosure, and that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the present disclosure. [Explanation of symbols]

[0070] 100...Electronic equipment 102…Processor 104...Battery equipment 106, 106A, 106B, 106C, 106D… Battery cells 108...Circuit board 110, 110A, 110B...Temperature sensor 112...Management chip 114...Sense resistor 116…Charging transistor 118...Discharge transistor 120…Sub-management chip 122…Fuse 124…Control line 126…Control line 200…Power supply 202...Selector 204…Battery charger 206…Host power supply unit 208…Power management unit 210…Fan 212…Display 214…USB port 216…Signal line 218…Signal line 300…Battery temperature compensation method 302…Operation 400…Battery temperature compensation method 402~410…operation 500…Battery temperature compensation method 502~526…operation 600…Battery temperature compensation method 602~630…operation A…Node B…Node P+…Positive electrode P-…Negative electrode

Claims

1. Detecting a battery temperature of a battery device in an electronic device; determining whether a difference between the battery temperature and a simulated battery temperature of the battery device is within a tolerance, the simulated battery temperature being simulated according to a current power consumption of the electronic device; when it is determined that the difference between the battery temperature of the battery device and the simulated battery temperature is not within the allowable value, performing a multi-stage cooling operation until the difference between the battery temperature of the battery device and the simulated battery temperature is within the allowable value; The multi-stage cooling operation includes: a first stage cooling operation of increasing a rotation speed of at least one fan of the electronic device; a second stage cooling operation in which the operating frequency of the processor of the electronic device is set to 75% of a maximum operating frequency; a third stage cooling operation of setting the operating frequency of the processor of the electronic device to 50% of the maximum operating frequency; a fourth stage cooling operation of setting the operating frequency of the processor of the electronic device to 25% of the maximum operating frequency; a fifth stage cooling operation of setting the operating frequency of the processor of the electronic device to less than 25% of the maximum operating frequency; a sixth stage cooling operation of reducing the brightness of a display of the electronic device; and a seventh stage cooling operation of closing a plurality of USB ports of the electronic device; Each subsequent stage of cooling has a higher cooling effect than the previous stage of cooling; When the execution of any one of the cooling steps of the multi-step cooling operation is unable to effectively bring the difference between the battery temperature of the battery device and the simulated battery temperature within the allowable value, the cooling step of the next step of the multi-step cooling operation is executed. Smart battery temperature compensation method.

2. determining whether the current power consumption of the electronic device is in light load operation, medium load operation, or heavy load operation; the light load operation is when the current power consumption of the electronic device is between 1% and 35% of the maximum power consumption of the electronic device; the medium load operation is when the current power consumption of the electronic device is between 36% and 75% of the maximum power consumption of the electronic device; 2. The smart battery temperature compensation method of claim 1, wherein the high load operation is when the current power consumption of the electronic device is between 76% and 100% of the maximum power consumption of the electronic device.

3. 3. The smart battery temperature compensation method of claim 2, wherein when the electronic device is determined to be in the light load operation, the tolerance value is less than or equal to 3 degrees Celsius.

4. 3. The smart battery temperature compensation method of claim 2, wherein the tolerance is less than or equal to 5 degrees Celsius when the electronic device is determined to be in the medium load operation.

5. 3. The smart battery temperature compensation method of claim 2, wherein the allowable value is equal to or less than 8 degrees Celsius when the electronic device is determined to be in the high load operation.

6. When the difference between the battery temperature of the battery device and the simulated battery temperature is not within the tolerance, determining whether the difference is less than or equal to 9°C; 6. The smart battery temperature compensation method of claim 5, further comprising the step of: when it is determined that the difference is 9° C. or less, performing the multi-stage cooling operation from the fifth stage cooling operation until the difference between the battery temperature of the battery device and the simulated battery temperature is within the tolerance value.

7. When the difference between the battery temperature of the battery device and the simulated battery temperature is not within the tolerance, determining whether the difference is less than or equal to 10° C.; 6. The smart battery temperature compensation method of claim 5, further comprising the step of: when it is determined that the difference is 10° C. or less, performing the multi-stage cooling operation from the sixth stage cooling operation until the difference between the battery temperature of the battery device and the simulated battery temperature is within the tolerance value.

8. if the difference between the battery temperature of the battery device and the simulated battery temperature is not within the tolerance, determining whether the difference is less than or equal to 11°C; 6. The smart battery temperature compensation method of claim 5, further comprising the step of: when it is determined that the difference is 11° C. or less, performing the multi-stage cooling operation from the seventh stage cooling operation until the difference between the battery temperature of the battery device and the simulated battery temperature is within the tolerance value.

9. 9. The smart battery temperature compensation method of claim 8, further comprising turning off the electronic device if the difference is determined to be greater than 11 degrees Celsius.

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