Intelligent discharging control method and system for battery and charging and discharging equipment

Abstract

The invention relates to the technical field of batteries, in particular to an intelligent battery discharging control method and system and charging and discharging equipment, and the method comprises the steps that port insertion equipment carries out protocol identification, and the residual maximum power of current theoretical output is calculated according to the maximum output power; when the residual available power cannot meet the port power under the condition that the minimum output power of each port is reserved, other ports are distributed according to the reserved minimum power, and the sum of the minimum power of other ports is subtracted from the residual available power to obtain the actual output power of the port; and monitoring the actual discharge power of each port in real time, and limiting the maximum discharge power of other ports according to the actual discharge power. According to the intelligent power distribution method, the power output can be dynamically adjusted according to the power demand of the connected equipment, and each piece of equipment can be charged at the fastest speed to improve the charging efficiency.

Description

Technical Field

[0001] The present invention relates to the field of battery technology, and in particular to a battery intelligent discharge control method, system and charging and discharging equipment. Background Art

[0002] The existing battery output power distribution schemes basically have fixed power distribution or average power distribution, that is, in some mobile power devices, each output port may be designed to provide a fixed power output. For example, one port may provide higher power to support fast charging, while another port may provide lower power for charging smaller devices, which is a fixed power distribution; the average power distribution scheme is that in some cases, multiple output ports may evenly distribute the total available power. This means that if multiple devices are connected, each device will get the same power output, and the power will not be reduced due to the increase in the number of connected devices; fixed power distribution means that each output port provides a fixed power output, which may limit the user's charging needs in different situations. Sometimes some devices may require higher power for fast charging, while other devices may only need lower power; under the fixed power distribution scheme, some devices may charge slowly because they cannot get the required high power, or some devices may be damaged because the power is too high. This situation may cause inflexible and inefficient device charging. Summary of the invention

[0003] The object of the present invention is to provide an intelligent discharge control method, system and charging and discharging device for dynamically and intelligently allocating the maximum output power of each port according to the power and temperature required by the port when the battery is discharged, so as to improve the charging efficiency and flexibility.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: The present invention provides a battery intelligent discharge control method, comprising the following steps: Step 1: Plug the device into the detection port to identify the protocol, and calculate the remaining available power after the current theoretical output according to the maximum output power of the port protocol; Step 2: Calculate the total power of all connected ports and determine whether the remaining available power meets the power requirements of all connected ports; Step 3: When the remaining available power cannot meet the power of a certain port, other ports are allocated according to the reserved minimum power. The actual output power of the port is obtained by subtracting the sum of the minimum powers of other ports from the remaining available power. Step 4: Monitor the actual discharge power of each port in real time, and limit the maximum discharge power of other ports according to the actual discharge power; Step 5: For ports that do not support the protocol, the output power of the port is limited according to the voltage of the port dropping to a predetermined threshold.

[0005] Furthermore, step three specifically includes: when the remaining available power cannot meet the power of a certain port, other ports are allocated according to the reserved minimum power, which is performed under the premise that the minimum output power is reserved for each port.

[0006] Furthermore, the remaining available power is the total power of the battery minus the sum of the powers of the connected ports.

[0007] Furthermore, the control method further comprises the following steps: if the temperature of the port exceeds a predetermined downshift threshold, reducing the maximum output voltage and current supported by the port; if the temperature of the port exceeds a predetermined stop threshold, terminating the discharge of the port.

[0008] Further, the control method further comprises the following steps: if the temperature of the mainboard exceeds a predetermined stop threshold, terminating the discharge of all ports; Furthermore, the control method further comprises the following steps: if the temperature of the battery or / and the battery cell exceeds a predetermined stop threshold, discharging of all ports is terminated.

[0009] The present invention also proposes a battery intelligent discharge control system, comprising: A port protocol identification module is used to detect the port of the access device and identify the port protocol it supports; An output management module is connected to the port protocol identification module, and matches and outputs the voltage and current required by the corresponding device according to the identified port protocol; A battery control module, connected to the output management module, is used to calculate the output power and remaining power of the port and allocate power according to the port requirements; A temperature monitoring module is used to monitor the temperature of each port and the system, and adjust the port output or close the port when the temperature exceeds or falls below a predetermined threshold; Furthermore, the battery control module comprises: Power calculation module, used to calculate the output power and remaining power of each port; The power allocation module is used to allocate the remaining available power to other ports according to a preset rule when the remaining available power cannot meet the power demand of a certain port.

[0010] Furthermore, the battery control module also includes a power limiting module, which is connected to the power calculation module. When the port has power limitation according to the port protocol matching and the port does not reach full power discharge during the actual discharge process, the power limiting module limits the maximum discharge power of other ports according to the actual discharge power of the port.

[0011] Furthermore, the battery control module also includes a voltage power adjustment module, which is connected to the port protocol identification module. When it is detected that the port does not support the protocol, the voltage power adjustment module limits the corresponding power according to the drop of the port voltage to a set threshold.

[0012] Furthermore, the temperature monitoring module includes sensors for detecting the temperature of the battery control module, the port and the battery cell.

[0013] The present invention also proposes a battery charging and discharging device, comprising at least one port, a memory, a processor, and a control program on the memory and executable on the processor. When the control program is executed by the processor, the steps of the battery intelligent discharge control method are implemented.

[0014] The battery intelligent discharge control method provided by the present invention has the following advantages: 1. Improve charging efficiency: Intelligent power distribution can dynamically adjust power output according to the power requirements of connected devices, ensuring that each device can be charged at the fastest speed, thereby improving charging efficiency; 2. Meet the needs of different devices: allocate the maximum power according to the protocol recognized by the device port. For TYPE-C port and TYPE-A port, they are restricted according to the fast charging protocol to match the maximum output power. For BP electrode, they are restricted according to the SMbus custom protocol. For DC port and DTAP port without protocol, they are restricted to see whether other ports are connected and the actual remaining power. 3. Improve user experience: Intelligent power distribution can automatically adjust power output according to actual conditions, providing a more personalized and intelligent charging experience, allowing users to charge multiple devices more conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic block diagram of the interconnection of a battery intelligent discharge control system; Figure 2 The figure is a flow chart of a battery intelligent discharge control method. DETAILED DESCRIPTION

[0016] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0017] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0018] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0019] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0021] The present invention provides a battery intelligent discharge control method, which is applied to some mobile power supply devices, including all rechargeable and dischargeable batteries such as V-mount batteries, camera batteries, N-PF batteries, power banks, and some battery charging and discharging bases, mobile power supplies, charging and discharging handles, etc. See Figure 1 , Figure 1 The present invention is a schematic block diagram of an interconnection of a battery intelligent discharge control system. In this embodiment, the battery intelligent discharge control system includes: a port protocol identification module, which is used to detect the port of the access device and identify the port protocol supported by the device; An output management module is connected to the port protocol identification module, and matches and outputs the voltage and current required by the corresponding device according to the identified port protocol; A battery control module, connected to the output management module, is used to calculate the output power and remaining power of the port and allocate power according to the port requirements; It includes: a power calculation module, used to calculate the output power and residual power of each port; A power allocation module is used to allocate the remaining power to other ports according to a preset rule when the remaining power cannot meet the power demand of a certain port; A power limiting module, which is connected to the power calculation module. When a port has a power limit according to port protocol matching and the port does not reach full power discharge during the actual discharge process, the power limiting module limits the maximum discharge power of other ports according to the actual discharge power of the port; The voltage and power adjustment module is connected to the port protocol identification module. When it is detected that the port does not support the protocol, the voltage and power adjustment module limits the corresponding power according to the drop of the port voltage to the set threshold; A temperature monitoring module is used to monitor the temperature of each port and the system, and adjust the port output or close the port when the temperature exceeds or falls below a predetermined threshold; The temperature monitoring module is a temperature sensor used to detect the temperature of the battery control module, ports and battery cells.

[0022] See Figure 2 , Figure 2 The present invention provides a flow chart of a battery intelligent discharge control method, including: detecting a port plugged with a device to perform protocol identification, and calculating the remaining available power after the current theoretical output according to the maximum output power of the port protocol; Calculate the total power of all connected ports and determine whether the remaining available power meets the power requirements of all connected ports; The remaining available power is the sum of the total power minus the power of the connected ports. When the remaining available power is greater than the maximum output power of the port, the voltage and current are adapted based on the maximum power of the port. If the remaining available power is less than the maximum output power of the port, each port reserves a minimum output power. Further, if the remaining available power cannot meet the power of a certain port when the minimum output power is reserved for each port, other ports are allocated according to the reserved minimum power. The remaining available power minus the sum of the minimum powers of other ports is the actual output power of the port. Since the port discharge power is based on the power limit matched by the port protocol, but the port may not discharge at full power in actual process, the actual discharge power of each port is monitored in real time, and the maximum discharge power of other ports is limited according to the actual discharge power; If the temperature of the port exceeds a predetermined downshift threshold, the maximum output voltage and current supported by the port are reduced; If the temperature of the port exceeds a predetermined stop threshold, the port discharge is terminated; If the motherboard temperature exceeds the predetermined downshift threshold, the maximum output voltage and current supported by all ports are reduced; If the motherboard temperature exceeds the predetermined stop threshold, the discharge of all ports is terminated; If the battery or / and cell temperature exceeds the predetermined stop threshold, the discharge of all ports is terminated; If the port does not support the protocol, the output power of the port is limited according to the voltage of the port dropping to a predetermined threshold.

[0023] The present invention also proposes a battery charging and discharging device, comprising at least one port, a memory, a processor, and a control program on the memory and executable on the processor. When the control program is executed by the processor, the steps of the battery intelligent discharge control method are implemented. Therefore, it has at least all the beneficial effects brought by the battery intelligent discharge control method of the above-mentioned embodiment, which will not be described one by one here.

[0024] In addition, each functional module in each embodiment of the present invention may be integrated into one processing module, or each module may exist physically separately, or two or more modules may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of software functional modules.

[0025] The present invention is not limited to the above-mentioned specific implementation modes. Various changes made by ordinary technicians in this field based on the above-mentioned concepts without creative work are all within the protection scope of the present invention.

Claims

1. A battery intelligent discharge control method, characterized in that: The method comprises the following steps: The detection port inserts the device to perform protocol identification, and calculates the remaining available power after the current theoretical output according to the maximum output power of the port protocol; Calculate the total power of all connected ports and determine whether the remaining available power meets the power requirements of all connected ports; When the remaining available power cannot meet the power of a certain port, other ports are allocated according to the reserved minimum power. The actual output power of the port is obtained by subtracting the sum of the minimum powers of other ports from the remaining available power. Monitor the actual discharge power of each port in real time and limit the maximum discharge power of other ports based on the actual discharge power; For a port that does not support the protocol, the output power of the port is limited when the voltage of the port drops to a predetermined threshold.

2. The control method according to claim 1, characterized in that: When the remaining available power in the step cannot meet the power of a certain port, other ports are allocated according to the reserved minimum power, which is performed on the premise that the minimum output power is reserved for each port; the remaining available power is the total battery power minus the sum of the powers of the connected ports.

3. The control method according to claim 1, characterized in that: The following steps are also included: If the temperature of the port exceeds a predetermined downshift threshold, the maximum output voltage and current supported by the port are reduced; if the temperature of the port exceeds a predetermined stop threshold, the port discharge is terminated.

4. The control method according to claim 1, characterized in that: The following steps are also included: If the mainboard temperature exceeds a preset stop threshold, discharge of all ports is terminated; if the battery or / and cell temperature exceeds a preset stop threshold, discharge of all ports is terminated.

5. A battery intelligent discharge control system for implementing any one of the control methods of claims 1 to 4, characterized in that: The battery intelligent discharge control system comprises: A port protocol identification module is used to detect the port of the access device and identify the port protocol it supports; An output management module is connected to the port protocol identification module, and matches and outputs the voltage and current required by the corresponding device according to the identified port protocol; A battery control module, connected to the output management module, is used to calculate the output power and remaining power of the port and allocate power according to the port requirements; The temperature monitoring module is used to monitor the temperature of each port and the battery control system, and adjust the port output or close the port when the temperature exceeds or falls below a predetermined threshold.

6. The battery intelligent discharge control system according to claim 5, characterized in that: The battery control module comprises: Power calculation module, used to calculate the output power and remaining power of each port; The power allocation module is used to allocate the remaining available power to other ports according to a preset rule when the remaining available power cannot meet the power demand of a certain port.

7. The battery intelligent discharge control system according to claim 5, characterized in that: The battery control module also includes a power limiting module, which is connected to the power calculation module. When a port has a power limit according to port protocol matching and the port does not reach full power discharge during actual discharge, the power limiting module limits the maximum discharge power of other ports according to the actual discharge power of the port.

8. The battery intelligent discharge control system according to claim 5, characterized in that: The battery control module also includes a voltage power adjustment module connected to the port protocol identification module. When it is detected that the port does not support the protocol, the voltage power adjustment module limits the corresponding power according to the drop of the port voltage to a set threshold.

9. The battery intelligent discharge control system according to claim 5, characterized in that: The temperature monitoring module includes temperature sensors for detecting the temperature of the battery control module, ports and battery cells.

10. A battery charging and discharging device, characterized in that: The device comprises at least one port, a memory, a processor, and a control program on the memory and executable on the processor, wherein the control program implements the steps of the discharge control method according to any one of claims 1 to 4 when executed by the processor.

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