Battery control device, operation method thereof, and battery control system

The battery control device and system address the challenges of battery management and emergency response in mobility devices by acquiring and processing information to control battery operation, balance loads, and initiate emergency modes, ensuring efficient power supply and prolonged battery life.

JP7679944B2Active Publication Date: 2025-05-20LG ENERGY SOLUTION LTD
View PDF 8 Cites 0 Cited by

Patent Information

Application Number
JP2023532643
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2021-08-02
Filing Date
2022-07-11
Publication Date
2025-05-20
Estimated Expiration
2042-07-11

AI Technical Summary

Technical Problem

Existing battery control systems for mobility devices lack efficient methods to manage battery deterioration and respond to emergencies, particularly in air mobility where stopping is not possible.

Method used

A battery control device and system that acquires information about mobility, first batteries, and second auxiliary batteries, generating control signals to manage battery operation, balance state of charge and health, and initiate emergency modes in case of abnormalities.

Benefits of technology

The system effectively manages battery deterioration, ensures efficient power supply to reach target speeds, and performs emergency operations by balancing battery loads and switching power sources as needed.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 0007679944000001
    Figure 0007679944000001
  • Figure 0007679944000002
    Figure 0007679944000002
  • Figure 0007679944000003
    Figure 0007679944000003
Patent Text Reader

Abstract

A battery control device according to one embodiment disclosed in this document may include an information acquisition unit that acquires information regarding mobility, information regarding a first battery that supplies power to each of the modules provided in the mobility, and information regarding a second battery that is provided in each of the modules and supplies power to the modules as an auxiliary power source for the first battery based on the operation of the mobility, and a controller that generates a control signal to control the operation of the first battery and the second battery based on the acquired information.
Need to check novelty before this filing date? Find Prior Art

Description

[Technical field]

[0001] The present invention claims the benefit of priority based on Korean Patent Application No. 10-2021-0101623, filed on August 2, 2021, and all contents disclosed in the documents of the Korean patent application are incorporated as part of this specification.

[0002] SUMMARY OF THE DISCLOSURE The embodiments disclosed herein relate to a battery control device, a method of operating the same, and a battery control system. [Background technology]

[0003] In recent years, research and development into secondary batteries has been actively conducted. Here, secondary batteries are batteries that can be charged and discharged, and include both conventional Ni / Cd batteries, Ni / MH batteries, and the more recent lithium-ion batteries. Among secondary batteries, lithium-ion batteries have the advantage of having a much higher energy density than conventional Ni / Cd batteries, Ni / MH batteries, and the like. In addition, lithium-ion batteries can be manufactured to be small and lightweight, so they are used as power sources for mobile devices, and in recent years, their range of use has been expanded to include power sources for electric vehicles, drawing attention as a next-generation energy storage medium.

[0004] Mobility is a general term for transportation means that have mobility. For batteries used in mobility, it is essential to manage the deterioration of the battery in order to increase the battery life. In addition, since air mobility operates in the air, unlike mobility that operates on the ground, it is not possible to stop, which can cause problems in emergencies. Summary of the Invention [Problem to be solved by the invention]

[0005] One objective of the embodiments disclosed in this document is to provide a battery control device, an operating method thereof, and a battery control system that can efficiently control the operation of a battery installed in a mobility device.

[0006] The technical problems of the embodiments disclosed in this document are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description. [Means for solving the problem]

[0007] A battery control device of one embodiment disclosed in this document may include an information acquisition unit that acquires information regarding mobility, information regarding a first battery that supplies power to each of the modules provided in the mobility, and information regarding a second battery that is provided in each of the modules and supplies power to the modules as an auxiliary power source for the first battery based on the operation of the mobility, and a controller that generates a control signal to control the operation of the first battery and the second battery based on the acquired information.

[0008] In one embodiment, the controller can generate a control signal to control the second battery to charge or discharge based on a speed or instantaneous speed of the mobility to assist in powering the first battery.

[0009] In one embodiment, the controller may generate a control signal to control balancing between the second batteries when a deviation in state of charge (SOC) or state of health (SOH) between the second batteries is equal to or greater than a reference value.

[0010] In one embodiment, the controller can generate a control signal to control the operation of the first battery and the second battery so that, when an abnormality occurs in at least one of the second batteries, an emergency operation mode of the mobility is performed based on the operation of the first battery and the remaining second batteries excluding the second battery in which the abnormality has occurred.

[0011] In one embodiment, the controller can generate a control signal to control the operation of the first battery and the second battery so as to perform an emergency operation mode of the mobility based on the operation of the first battery when the number of second batteries in which abnormalities have occurred is equal to or greater than a preset value.

[0012] In one embodiment, the controller can generate a control signal to control the operation of the first battery and the second battery so as to perform an emergency operation mode of the mobility based on the operation of the second battery when an abnormality occurs in the first battery.

[0013] An operating method of a battery control device according to one embodiment disclosed in this document may include the steps of acquiring information regarding mobility, information regarding a first battery that supplies power to each of the modules provided in the mobility, and information regarding a second battery that is provided in each of the modules and supplies power to the modules as an auxiliary power source for the first battery based on the operation of the mobility, and generating a control signal to control the operation of the first battery and the second battery based on the acquired information.

[0014] In one embodiment, the step of generating a control signal to control the operation of the first battery and the second battery based on the acquired information can generate a control signal to control the second battery to charge or discharge based on the speed or instantaneous speed of the mobility to assist in the power supply of the first battery.

[0015] In one embodiment, the step of generating a control signal to control the operation of the first battery and the second battery based on the acquired information may include a step of determining whether a deviation in SOC (state of charge) or SOH (state of health) between the second batteries is greater than or equal to a reference value, and a step of generating a control signal to control balancing between the second batteries.

[0016] In one embodiment, the step of generating a control signal to control the operation of the first battery and the second battery based on the acquired information may include a step of determining whether an abnormality has occurred in at least one of the second batteries, and a step of generating a control signal to control the operation of the first battery and the second battery so as to perform an emergency operation mode of the mobility based on the operation of the remaining second batteries excluding the first battery and the second battery in which the abnormality has occurred.

[0017] In one embodiment, the step of generating a control signal to control the operation of the first battery and the second battery based on the acquired information may further include a step of determining whether the number of second batteries in which abnormalities have occurred among the second batteries is greater than or equal to a preset value, and a step of generating a control signal to control the operation of the first battery and the second battery so as to perform an emergency operation mode of the mobility based on the operation of the first battery.

[0018] In one embodiment, the step of generating a control signal to control the operation of the first battery and the second battery based on the acquired information may include a step of determining whether an abnormality has occurred in the first battery, and a step of generating a control signal to control the operation of the first battery and the second battery so as to perform an emergency operation mode of the mobility based on the operation of the second battery.

[0019] A battery control system according to one embodiment disclosed in this document may include a first battery that supplies power to each of the modules provided in a mobility, a second battery that is provided in each of the modules and supplies power to the modules as an auxiliary power source for the first battery based on the operation of the mobility, and a control device that acquires information regarding the mobility, the first battery, and the second battery, and controls the operation of the first battery and the second battery based on the acquired information.

[0020] In one embodiment, the control device can control the second battery to charge or discharge based on the speed or instantaneous speed of the mobility to assist in the power supply of the first battery.

[0021] In one embodiment, the control device may control the second batteries to perform balancing when a deviation in state of charge (SOC) or state of health (SOH) between the second batteries is equal to or greater than a reference value.

[0022] In one embodiment, when an abnormality occurs in at least one of the second batteries, the control device can execute an emergency operation mode of the mobility based on the operation of the first battery and the remaining second batteries excluding the second battery in which the abnormality has occurred.

[0023] In one embodiment, the control device can perform an emergency operation mode of the mobility based on the operation of the first battery when the number of second batteries in which abnormalities have occurred among the second batteries is equal to or greater than a preset value.

[0024] In one embodiment, the control device can implement an emergency operation mode of the mobility based on the operation of the second battery when an abnormality occurs in the first battery. Effect of the Invention

[0025] A battery control device according to one embodiment disclosed in this document can control the operation of a battery based on information about mobility and information about a battery provided in the mobility, and can manage the degree of deterioration of the battery.

[0026] A battery control device according to one embodiment disclosed herein can control the operation of the battery based on information about the mobility and information about the battery provided in the mobility, to enable the mobility to efficiently reach a target speed or instantaneous speed.

[0027] A battery control device according to one embodiment disclosed in this document controls the operation of a battery based on information regarding mobility and information regarding a battery provided in the mobility, and can perform an emergency operation mode if an abnormality occurs in the battery provided in the mobility. In addition, this document may provide a variety of other benefits that may be perceived directly or indirectly. [Brief description of the drawings]

[0028] [Figure 1] FIG. 1 illustrates a mobility diagram according to one embodiment disclosed in this document. [Diagram 2] FIG. 1 is a block diagram illustrating one embodiment of a battery control system disclosed herein. [Diagram 3] FIG. 1 illustrates a battery control device according to one embodiment disclosed herein. [Figure 4] FIG. 1 is a diagram showing an example of controlling a battery based on the speed of mobility in a battery control device according to an embodiment disclosed herein. [Diagram 5] FIG. 1 is a diagram showing an example of controlling a battery based on the instantaneous speed of mobility in a battery control device according to an embodiment disclosed herein. [Figure 6] FIG. 1 is a diagram showing an example of controlling a battery based on the instantaneous speed of mobility in a battery control device according to an embodiment disclosed herein. [Figure 7] 4 is a flowchart illustrating a method of operating a battery control device according to one embodiment disclosed herein. [Figure 8] FIG. 4 further illustrates a method of operation of a battery control device according to an embodiment disclosed herein. [Figure 9] FIG. 4 further illustrates a method of operation of a battery control device according to an embodiment disclosed herein. [Figure 10] FIG. 4 further illustrates a method of operation of a battery control device according to an embodiment disclosed herein. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0029] Hereinafter, the embodiments disclosed in this document will be described in detail with reference to the exemplary drawings. When referring to components in each drawing, it should be noted that the same components are referred to by the same reference numerals as much as possible when they are displayed in other drawings. In addition, when describing the embodiments disclosed in this document, if a detailed description of related known configurations or functions is deemed to hinder understanding of the embodiments disclosed in this document, the detailed description will be omitted.

[0030] In describing the components of the embodiments disclosed herein, terms such as first, second, A, B, (a), (b) and the like may be used. Such terms are merely used to distinguish the components from other components, and do not limit the essence, order, or sequence of the components. In addition, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the art to which the embodiments disclosed herein belong. Terms as defined in commonly used dictionaries should be interpreted as having a meaning consistent with the contextual meaning of the relevant art, and should not be interpreted in an ideal or overly formal sense unless expressly defined in this application.

[0031] FIG. 1 is a diagram illustrating mobility according to one embodiment disclosed in this document. Referring to FIG. 1, the mobility 1000 may mean a means having mobility. For example, the mobility 1000 may include at least one of a vehicle, an electric kick scooter, an airplane, a drone, a helicopter, a train, a bicycle, and a two-wheeled vehicle. In another example, the mobility 1000 may include a means that may have mobility using at least one of electricity, hydrogen, or fuel. In FIG. 1, the mobility 1000 is shown in the shape of an airplane, but is not limited thereto.

[0032] The mobility 1000 may include a module 1100. For example, the mobility 1000 may include a plurality of modules 1100. In FIG. 1, the module 1100 is shown in the shape of a propeller, but is not limited thereto. That is, the module may include a device that is driven using energy so that the mobility 1000 can move.

[0033] The mobility 1000 can be powered by a battery. For example, each of the modules 1100 can include a battery and can be powered based on the energy of the included battery. In another example, the mobility 1000 can include a battery capable of supplying energy to the mobility 1000 and the module 1100. The mobility 1000 can also include a battery control device capable of controlling the operation of the battery to efficiently manage and use (charge or discharge) the battery.

[0034] The mobility 1000 according to one embodiment disclosed in this document can control the operation of the battery via a battery control device so that each module 1100 and the mobility 1000 can operate efficiently.

[0035] FIG. 2 is a block diagram illustrating a battery control system according to one embodiment disclosed herein. Referring to FIG. 2, a battery control system 100 according to an embodiment disclosed herein may include a first battery 110, a second battery 120, and a control device 130. The module 1100 may be substantially identical to the module 1100 of FIG. 1. In an embodiment, each of the modules 1100 may include a driving device 1110 and a second battery 120. For example, the driving device 1110 may include a motor (not shown) and an inverter (not shown). In another example, the driving device 1110 may receive power supplies from the first battery 110 and the second battery 120 in parallel.

[0036] The first battery 110 may supply power to each of the modules 1100 included in the mobility. For example, the first battery 110 may be a base battery and supply power to all of the modules 1100 included in the mobility. The first battery 110 may be, for example, a lithium ion (Li-ion) battery, a lithium ion polymer (Li-ion polymer) battery, a nickel cadmium (Ni-Cd) battery, a nickel metal hydride (Ni-MH) battery, etc., but is not limited thereto. In one embodiment, the first battery 110 may include at least one of a plurality of battery cells (not shown), a plurality of battery modules (not shown), or a plurality of battery packs (not shown).

[0037] The second battery 120 may be provided in each of the modules 1100. For example, each of the modules 1100 may include the second battery 120. The second battery 120 may be, for example, a lithium ion (Li-ion) battery, a lithium ion polymer (Li-ion polymer) battery, a nickel cadmium (Ni-Cd) battery, a nickel metal hydride (Ni-MH) battery, or the like, but is not limited thereto.

[0038] The second battery 120 may supply power to the module 1100 as an auxiliary power source for the first battery 110 based on the operation of the mobility. For example, the second battery 120 may supply power to each of the modules 1100 when charging or discharging of an additional power source is required in addition to the power source supplied to the module 1100 by the first battery 110. In one embodiment, the second battery 120 included in each of the modules 1100 may supply different amounts of power to the modules 1100 to which they are respectively connected. In one embodiment, the second battery 120 may be multiple and may have the same number as the number of the modules 1100.

[0039] The control device 130 can control the operation of the first battery 110 and the second battery 120. For example, the control device 130 can acquire information related to the first battery 110, the second battery 120, and mobility, and can control the operation of the first battery 110 and the second battery 120 based on the acquired information. In one embodiment, the control device 130 can receive power supply from the first battery 110. In one embodiment, the control device 130 can control the output (power supply) of the first battery 110 and the second battery 120.

[0040] The control device 130 can control the second battery 120 to charge or discharge based on the speed or instantaneous speed of the mobility, and to assist the power supply (output, operation) of the first battery 110. For example, when the target speed of the mobility to be reached is higher than the maximum speed that the first battery 110 can obtain by supplying power to the module 1100, the control device 130 can control the output of the first battery 110 and the second battery 120 so that the mobility can reach the target speed by controlling the second battery 120 to discharge. In another example, when the instantaneous speed of the mobility must be reduced, the control device 130 can first control the second battery 120 to recover (charge) power from the module 1100, reduce the speed of the driving device 1110 included in the module 1100, and then control the output of the first battery 110 to reduce, thereby controlling the output of the first battery 110 and the second battery 120 so that the mobility can reach the target speed quickly. As another example, when the instantaneous speed of the mobility needs to be increased, the control device 130 can first control the second battery 120 to supply (discharge) power as a power source and slow down the speed of the drive device 1110 included in the module 1100, and then control the output of the first battery 110 to increase, thereby controlling the operation of the first battery 110 and the second battery 120 so that the mobility can reach the target speed more quickly.

[0041] The control device 130 may control the second batteries 120 to perform balancing when the deviation of SOC (state of charge) or SOH (state of health) between the second batteries 120 is equal to or greater than a reference value. For example, when any one second battery has a SOC or SOH value that is different from the other second battery by a reference value or more, the control device 130 may control the operation of the second battery 120 to balance the SOC and SOH between the second batteries 120 while proceeding with normal operation of the mobility by further using a driving device connected to a module corresponding to the other second battery. That is, the control device 130 may control the operation of the second battery 120 to make the difference in the deterioration degree between the second batteries 120 equal to or less than a reference value.

[0042] When an abnormality occurs in at least one of the second batteries 120, the control device 130 may perform an emergency operation mode of the mobility based on the operation of the first battery 110 and the remaining second batteries excluding the second battery in which the abnormality occurred. For example, when the mobility can be operated at a target speed only with the output of the remaining second batteries excluding the second battery in which the abnormality occurred and the first battery, the control device 130 may perform emergency operation by turning off the power supply of the drive device connected to the second battery in which the abnormality occurred. That is, the emergency operation mode may be a mode in which the power supply of the drive device connected to the second battery in which the abnormality occurred is turned off when the mobility can be operated at the existing speed.

[0043] The control device 130 may perform an emergency operation mode of the mobility based on the operation of the first battery when the number of the second batteries in which an abnormality has occurred is equal to or greater than a preset value. For example, the control device 130 may set a preset value based on the target speed of the mobility, and when the number of the second batteries in which an abnormality has occurred is equal to or greater than the preset value and the mobility cannot be operated at the target speed, the control device 130 may control the mobility to operate using only the first battery 110. That is, the control device 130 may turn off the power of the driving device connected to all the second batteries 120, and may control the mobility to operate using only the output of the first battery 110. In one embodiment, the control device 130 may perform an emergency operation mode of the mobility based on the position information of the second battery in which an abnormality has occurred among the second batteries.

[0044] When an abnormality occurs in the first battery 110, the control device 130 may perform an emergency operation mode of the mobility based on the operation of the second battery 120. For example, when the control device 130 determines that an abnormality occurs in the first battery 110, it may stop using the first battery 110 and continuously operate by receiving power from any one of the second batteries 120, and may control the mobility to operate based on the operation of the second battery 120.

[0045] The battery control system 100 according to one embodiment disclosed in this document can control the operation of the first battery 110 and the second battery 120 via the control device 130 to control the mobility to reach a target speed or a target instantaneous speed, can balance the degree of deterioration between the second batteries 120, and can perform an emergency operation mode in the event of an emergency situation for the mobility.

[0046] FIG. 3 is a diagram illustrating a battery control device according to one embodiment disclosed herein. 3, a battery control device 200 according to one embodiment disclosed herein may include an information acquisition unit 210 and a controller 220. In one embodiment, the battery control device 200 may be substantially the same as the control device 130 of FIG.

[0047] The information acquisition unit 210 can acquire information related to the mobility. For example, the information acquisition unit 210 can acquire at least one of a target speed, a target instantaneous speed, a current speed, a maximum speed, and a minimum speed of the mobility.

[0048] The information acquisition unit 210 can acquire information about a first battery that supplies power to each of the modules included in the mobility. For example, the first battery may be substantially the same as the first battery 110 in Fig. 2. As another example, the information about the first battery may include at least one of the voltage, current, temperature, insulation resistance, SOC (State of Charge), SOH (State of Health), and information about the presence or absence of a malfunction of the first battery.

[0049] The information acquisition unit 210 may acquire information about a second battery that supplies power to the module as an auxiliary power source for the first battery based on the operation of the mobility. For example, the second battery may be substantially the same as the second battery 120 of Fig. 2. As another example, the information about the second battery may include at least one of the voltage, current, temperature, insulation resistance, SOC (State of Charge), SOH (State of Health), and information about the presence or absence of a malfunction of the second battery.

[0050] The controller 220 may generate a control signal for controlling the operation of the first battery and the second battery based on the acquired information. For example, the controller 220 may generate a control signal for controlling the operation of the first battery and the second battery based on information on the mobility, the first battery, and the second battery, thereby controlling the mobility to operate normally.

[0051] The controller 220 can generate a control signal to charge or discharge the second battery based on the speed or instantaneous speed of the mobility to supplement the output of the first battery. For example, the controller 220 can generate a control signal to control the second battery to further supply power to the module based on the target speed or instantaneous speed of the mobility, or to supplement the power supply (output) of the first battery by having the second battery use the power supplied to the module.

[0052] FIG. 4 is a diagram illustrating an example of controlling a battery based on a mobility speed in a battery control device according to an embodiment disclosed herein. Referring to FIG. 4, if the target speed of the mobility is a speed that cannot be reached with the output of the first battery, the controller 220 can generate a control signal to control the operation of the second battery so that the mobility can reach the target speed by further supplying output from the second battery to the module.

[0053] 5 and 6 are diagrams illustrating an example of controlling a battery based on an instantaneous speed of a mobility in a battery control device according to an embodiment disclosed herein. 5, in order for the mobility to reach the target speed v1 from the initial speed v0 quickly, the controller 220 can generate a control signal to control the output of the first battery to increase the instantaneous speed by further supplying the output of the second battery to the module (by discharging the second battery). The controller 220 can generate a control signal to control the output of the first battery and the second battery to increase the output of the second battery to reach the target speed v1 of the mobility and sequentially reduce the use of the second battery by increasing the output of the first battery. That is, the controller 220 can discharge the second battery to quickly reach the target speed v1 of the mobility, and can generate a control signal to control the discharge operation of the second battery to be interrupted when the target speed v1 of the mobility can be maintained only by the output of the first battery.

[0054] 6, in order for the mobility to quickly reach the target speed v1 from the initial speed v0, the controller 220 can generate a control signal to control the first battery to supplement the power supply (output) to reduce the instantaneous speed by charging the second battery based on the voltage supplied to the module. The controller 220 can generate a control signal to control the operation of the first battery and the second battery to charge the second battery to reach the mobility target speed v1 and sequentially reduce the charge of the second battery by reducing the output of the first battery. That is, the controller 220 can charge the second battery to quickly reach the mobility target speed v1, and can generate a control signal to control the second battery to stop the power recovery operation when the mobility target speed v1 can be maintained only by the output of the first battery.

[0055] Referring again to FIG. 3, the controller 220 may generate a control signal for controlling to perform balancing between the second batteries when the deviation of SOC or SOH between the second batteries is equal to or greater than a reference value. For example, the controller 220 may determine whether the deviation of SOC or SOH of each of the second batteries acquired through the information acquisition unit 210 is equal to or greater than a reference value, and may determine the second batteries whose deviation is equal to or greater than the reference value. The controller 220 may generate a control signal for increasing the output of the remaining second batteries excluding the second batteries whose deviation is equal to or greater than the reference value, thereby controlling to operate the mobility normally using the remaining modules including the second batteries, and may perform balancing between the second batteries.

[0056] The controller 220 may generate a control signal for controlling the operation of the first battery and the second battery, so that the mobility performs an emergency operation mode based on the operation of the remaining second battery excluding the first battery and the second battery in which the abnormality occurred, when an abnormality occurs in at least one of the second batteries. For example, the controller 220 may determine whether an abnormality occurs in at least one of the second batteries, and may classify the second battery in which the abnormality occurred. When it is possible to operate the mobility at an existing target speed based on the output of the second battery excluding the second battery in which the abnormality occurred and the first battery, the controller 220 may interrupt the use of the second battery in which the abnormality occurred, and may generate a control signal for controlling the operation of the first battery and the second battery, so that the mobility can perform an emergency operation based on the output of the first battery and the second battery excluding the second battery in which the abnormality occurred.

[0057] The controller 220 may generate a control signal to control the operation of the first battery so as to perform an emergency operation mode of the mobility based on the output of the first battery when the number of the second batteries in which an abnormality has occurred is equal to or greater than a preset value. For example, when the number of the second batteries in which an abnormality has occurred is equal to or greater than a preset value and it is difficult to operate the mobility at the current operating speed with the output of the first battery and the second battery in which an abnormality has not occurred, the controller 220 may generate a control signal to control the operation of the first battery and the second battery so as to stop using the second battery and operate the mobility in an emergency with only the output of the first battery.

[0058] The controller 220 can generate a control signal to control the operation of the first battery and the second battery so as to perform an emergency operation mode of the mobility based on the operation of the second battery when an abnormality occurs in the first battery. For example, the controller 220 can operate by receiving power from one of the second batteries when an abnormality occurs in the first battery, and can generate a control signal to control the operation of the first battery and the second battery so as to stop use of the first battery and perform emergency operation of the mobility only with the output of the second battery.

[0059] In the battery control device 200 according to an embodiment disclosed herein, the controller 220 generates a control signal for controlling the operation of the first battery and the second battery based on information acquired via the information acquisition unit 210, so that the mobility can reach a target speed and a target instantaneous speed, the deterioration degree between the second batteries can be matched, and an emergency operation mode of the mobility can be performed. That is, the battery control device 200 controls the operation of the first battery and the second battery, so that the mobility can be operated and the battery can be used efficiently.

[0060] FIG. 7 is a flow chart illustrating a method of operation of a battery control device according to one embodiment disclosed herein. Referring to FIG. 7, an operating method of a battery control device 200 according to one embodiment disclosed in this document can include a step (S110) of acquiring information regarding mobility, information regarding a first battery that supplies power to each of the modules provided in the mobility, and information regarding a second battery that is provided in each of the modules and supplies power to the modules as an auxiliary power source for the first battery based on the operation of the mobility, and a step (S120) of generating a control signal that controls the operation of the first battery and the second battery based on the acquired information.

[0061] In the step of acquiring information on the mobility, information on a first battery that supplies power to each of the modules included in the mobility, and information on a second battery that is included in each of the modules and supplies power to the modules as an auxiliary power source for the first battery based on the operation of the mobility (S110), the information acquisition unit 210 can acquire information on the mobility, information on the first battery, and information on the second battery. For example, the information on the mobility may include at least one of the target speed, the target instantaneous speed, the current speed, the maximum speed, and the minimum speed of the mobility. As another example, the information on the first battery and the second battery may include at least one of the voltage, current, temperature, insulation resistance, SOC (State of Charge), SOH (State of Health), and information on the presence or absence of a malfunction of the first battery and the second battery.

[0062] In a step (S120) of generating a control signal for controlling the operation of the first battery and the second battery based on the acquired information, the controller 220 can control the operation of the first battery and the second battery based on the information on the mobility, the first battery, and the second battery acquired via the information acquisition unit 210. For example, in step S120, the controller 220 can generate a control signal for controlling the second battery to charge or discharge based on the speed or instantaneous speed of the mobility, and to assist the power supply (output) of the first battery.

[0063] 8 to 10 are diagrams further illustrating a method of operation of a battery control device according to an embodiment disclosed herein. 8, the method of operating the battery control device 200 according to an embodiment disclosed herein may include a step of determining whether the deviation of SOC or SOH between the second batteries is equal to or greater than a reference value (S210), and a step of generating a control signal for controlling the second batteries to perform balancing (S220). In one embodiment, steps S210 and S220 may be included in step S120 of FIG. 7.

[0064] In the step of determining whether the deviation of SOC or SOH between the second batteries is equal to or greater than a reference value (S210), the controller 220 may determine whether the deviation of SOC or SOH between the second batteries is equal to or greater than a reference value. For example, the controller 220 may classify the second batteries whose deviation of SOC or SOH is equal to or greater than a reference value.

[0065] In the step of generating a control signal for controlling the second batteries to perform balancing (S220), the controller 220 may generate a control signal for controlling the second batteries to perform balancing. For example, the controller 220 may increase the output of the remaining second batteries excluding the second batteries whose SOC or SOH deviation is equal to or greater than a reference value, thereby matching the deterioration levels of the second batteries.

[0066] 9, the method of operating the battery control device 200 according to an embodiment disclosed herein may include a step of determining whether an abnormality has occurred in at least one of the second batteries (S310), a step of determining whether the number of the second batteries in which an abnormality has occurred is equal to or greater than a preset value (S320), a step of generating a control signal for controlling the operation of the first battery and the second battery so as to perform an emergency operation mode of the mobility based on the operation of the remaining second battery excluding the first battery and the second battery in which an abnormality has occurred (S330), and a step of generating a control signal for controlling the operation of the first battery so as to perform an emergency operation mode of the mobility based on the operation of the first battery (S340). In one embodiment, the steps S310 and S330 may be included in the step S120 of FIG. 7. In another embodiment, the step S120 of FIG. 7 may further include steps S320 and S340.

[0067] In the step (S310) of determining whether an abnormality has occurred in at least one of the second batteries, the controller 220 can determine whether an abnormality has occurred in at least one of the second batteries. For example, the controller 220 can determine whether an abnormality has occurred in at least one of the second batteries based on failure information or a specific physical quantity acquired via the information acquisition unit 210.

[0068] In the step of determining whether the number of second batteries in which an abnormality has occurred among the second batteries is equal to or greater than a preset value (S320), the controller 220 can set the preset value based on a target speed of the mobility, and can determine whether the number of second batteries in which an abnormality has occurred among the second batteries is equal to or greater than a preset value. The controller 220 can perform step S340 if the number of second batteries in which an abnormality has occurred is equal to or greater than the preset value, and can perform step S330 if the number of second batteries in which an abnormality has occurred is less than the preset value.

[0069] In the step (S330) of generating a control signal for controlling the operation of the first battery and the second battery so as to perform an emergency operation mode of the mobility based on the operation of the remaining second battery excluding the first battery and the second battery in which an abnormality has occurred, the controller 220 can generate a control signal for controlling the operation of the first battery and the second battery so as to perform an emergency operation mode of the mobility based on the operation of the remaining second battery excluding the second battery in which an abnormality has occurred and the operation of the first battery. For example, since the target speed of the mobility can be reached based on the output of the first battery and the output of the remaining second battery excluding the second battery in which an abnormality has occurred, the controller 220 can perform an emergency operation of the mobility by interrupting the use of the second battery in which an abnormality has occurred and generating a control signal for controlling the operation of the remaining second battery and the first battery.

[0070] In the step of generating a control signal for controlling the operation of the first battery and the second battery so as to perform an emergency operation mode of the mobility based on the operation of the first battery (S340), the controller 220 can generate a control signal for controlling the operation of the first battery and the second battery so as to perform an emergency operation mode of the mobility based only on the output of the first battery. For example, if the target speed of the mobility cannot be reached based on the output of the first battery and the output of the remaining second battery excluding the second battery in which an abnormality has occurred, the controller 220 can generate a control signal for stopping all use of the second battery and controlling the mobility to operate only with the output of the first battery.

[0071] 10, the method of operating the battery control device 200 according to an embodiment disclosed herein may include a step of determining whether an abnormality has occurred in the first battery (S410), and a step of generating a control signal for controlling the operation of the first battery and the second battery to perform an emergency operation mode of the mobility based on the operation of the second battery (S420). In one embodiment, steps S410 and S420 may be included in step S120 of FIG. 7.

[0072] In the step of determining whether an abnormality has occurred in the first battery (S410), the controller 220 may determine whether an abnormality has occurred in the first battery based on the information acquired via the information acquisition unit 210. For example, if no abnormality has occurred in the first battery, the controller 220 may generate a control signal to control the operation of the first battery and the second battery so that the mobility operates normally.

[0073] In the step (S420) of generating a control signal to control the operation of the first battery and the second battery so as to perform an emergency operation mode of the mobility based on the operation of the second battery, since the output of the first battery cannot be used, the controller 220 can generate a control signal to control the operation of the first battery and the second battery so as to receive power from one of the second batteries, discontinue use of the first battery, and operate the mobility based on the output of the second battery.

[0074] The above description is merely an illustrative example of the technical ideas disclosed in this document, and various modifications and variations may be made by a person having ordinary knowledge in the technical field to which the embodiments disclosed in this document pertain without departing from the essential characteristics of the embodiments disclosed in this document.

[0075] Therefore, the embodiments disclosed in this document are intended to explain, not to limit, the technical ideas disclosed in this document, and such embodiments do not limit the scope of the technical ideas disclosed in this document. The scope of protection of the technical ideas disclosed in this document should be interpreted according to the claims below, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of rights of this document.

Claims

1. an information acquisition unit that acquires information about the mobility, information about a first battery that supplies power to one or more modules provided in the mobility, and information about a plurality of second batteries provided in each of the one or more modules and that supply power to the one or more modules as auxiliary power sources for the first battery based on the operation of the mobility; a controller that generates a control signal to control an operation of the first battery and the plurality of second batteries based on information about the mobility, the first battery, and the plurality of second batteries; Including, A battery control device, wherein the plurality of second batteries discharge as auxiliary power sources to corresponding ones of the one or more modules while the first battery supplies power to the one or more modules.

2. The controller: The battery control device according to claim 1 , further comprising a control signal generating unit configured to control the plurality of second batteries to charge or discharge based on a speed or instantaneous speed of the mobility, thereby assisting in the power supply of the first battery.

3. The controller, 2. The battery control device according to claim 1, wherein, when a deviation in state of charge (SOC) or state of health (SOH) between the plurality of second batteries is equal to or greater than a reference value, a control signal is generated to control the plurality of second batteries to perform balancing by increasing outputs of the remaining second batteries excluding the second batteries whose deviation is equal to or greater than the reference value.

4. The mobility includes a plurality of the modules, The second batteries are provided corresponding to the plurality of modules, respectively. The battery control device according to claim 1 .

5. The controller, A battery control device as described in any one of claims 1 to 4, which generates a control signal to control the operation of the first battery and the plurality of second batteries so that, when an abnormality occurs in at least one of the plurality of second batteries, an emergency operation mode of the mobility is performed based on the operation of the first battery and the remaining second batteries excluding the second battery in which the abnormality has occurred.

6. The controller: The battery control device described in claim 5, further comprising: a control signal for controlling the operation of the first battery and the plurality of second batteries so as to perform an emergency operation mode of the mobility based on the operation of the first battery when the number of second batteries among the plurality of second batteries in which an abnormality has occurred is equal to or greater than a preset value.

7. The controller: A battery control device as described in any one of claims 1 to 4, which generates a control signal to control the operation of the first battery and the multiple second batteries so as to perform an emergency operation mode of the mobility based on the operation of the multiple second batteries when an abnormality occurs in the first battery.

8. acquiring information about the mobility, information about a first battery that supplies power to one or more modules included in the mobility, and information about a plurality of second batteries included in the one or more modules and that supply power to the one or more modules as auxiliary power sources for the first battery based on the operation of the mobility; generating a control signal to control operation of the first battery and the plurality of second batteries based on information about the mobility, the first battery, and the plurality of second batteries; Including, A method for operating a battery control device, wherein the plurality of second batteries discharge as auxiliary power sources to corresponding modules among the one or more modules while the first battery supplies power to the one or more modules.

9. generating a control signal for controlling operations of the first battery and the plurality of second batteries based on the acquired information, The method for operating a battery control device as described in claim 8, further comprising generating a control signal for controlling the plurality of second batteries to charge or discharge based on the speed or instantaneous speed of the mobility to assist in the power supply of the first battery.

10. The step of generating a control signal for controlling operation of the first battery and the plurality of second batteries based on the acquired information, determining whether a deviation of a state of charge (SOC) or a state of health (SOH) among the plurality of second batteries is equal to or greater than a reference value; A method for operating a battery control device as described in claim 8, further comprising a step of generating a control signal for controlling balancing between the plurality of second batteries by increasing the output of the remaining second batteries excluding the second battery whose deviation is equal to or greater than a reference value.

11. The mobility includes a plurality of the modules, The second batteries are provided corresponding to the plurality of modules, respectively. A method for operating the battery control device according to claim 8.

12. The step of generating a control signal for controlling operation of the first battery and the plurality of second batteries based on the acquired information, determining whether an abnormality has occurred in at least one of the plurality of second batteries; A method for operating a battery control device described in any one of claims 8 to 11, comprising a step of generating a control signal to control the operation of the first battery and the plurality of second batteries so as to perform an emergency operation mode of the mobility based on the operation of the first battery and the remaining second batteries excluding the second battery in which an abnormality has occurred.

13. generating a control signal for controlling operations of the first battery and the plurality of second batteries based on the acquired information, determining whether the number of second batteries in which an abnormality has occurred among the plurality of second batteries is equal to or greater than a preset value; The method of operating a battery control device as described in claim 12, further comprising the step of generating a control signal to control operation of the first battery and the plurality of second batteries so as to perform an emergency operation mode of the mobility based on the operation of the first battery.

14. generating a control signal for controlling operation of the first battery and the one or more second batteries based on the acquired information, determining whether an abnormality has occurred in the first battery; A method for operating a battery control device described in any one of claims 8 to 11, comprising a step of generating a control signal for controlling the operation of the first battery and the plurality of second batteries so as to perform an emergency operation mode of the mobility based on the operation of the plurality of second batteries.

15. A first battery that supplies power to one or more modules provided in the mobility; a plurality of second batteries provided in each of the one or more modules and supplying power to the one or more modules as auxiliary power sources for the first battery based on the operation of the mobility; a control device that acquires information regarding the mobility, the first battery, and the plurality of second batteries, and controls operations of the first battery and the plurality of second batteries based on the acquired information; Including, A battery control system, wherein the plurality of second batteries discharge as auxiliary power sources to corresponding ones of the one or more modules while the first battery supplies power to the one or more modules.

16. The control device includes: The battery control system of claim 15 , wherein the second batteries are controlled to be charged or discharged based on the speed or instantaneous speed of the mobility to assist the power supply of the first battery.

17. The control device 16. The battery control system according to claim 15, wherein, when a deviation in state of charge (SOC) or state of health (SOH) between the plurality of second batteries is equal to or greater than a reference value, the battery control system controls to balance the plurality of second batteries by increasing outputs of the remaining second batteries excluding the second batteries whose deviation is equal to or greater than the reference value.

18. The mobility includes a plurality of the modules, The second batteries are provided corresponding to the plurality of modules, respectively. The battery control system according to claim 15.

19. The control device A battery control system as described in any one of claims 15 to 18, wherein when an abnormality occurs in at least one of the plurality of second batteries, an emergency operation mode of the mobility is performed based on the operation of the remaining second batteries excluding the first battery and the second battery in which the abnormality has occurred.

20. The control device includes: The battery control system of claim 19, further comprising: a first battery that is connected to the first power source and connected to the second battery; a second battery that is connected to the first power source and connected to the first power source;

21. The control device The battery control system according to claim 15 , wherein, when an abnormality occurs in the first battery, an emergency operation mode is performed for the mobility based on the operation of the plurality of second batteries.

Citation Information

Patent Citations

  • Electricity-feeding device for electric automobile

    JP2002233003A

  • Power supply system and automobile

    JP2016034186A

  • Electric automobile

    JP2019170096A

  • Power supply system

    JP2020092552A

  • Electric automobile

    JP2020167838A