Starting battery, charging and discharging control method thereof and vehicle

Abstract

The invention is suitable for the technical field of batteries, and provides a starting battery and a discharging control method thereof, electronic equipment and a computer program product, the capacity of the starting battery is divided into a plurality of capacity areas, different capacity areas correspond to different working condition requirements, and the charging and discharging control method of the starting battery is suitable for the starting battery. Comprises: determining a target capacity area according to a current working condition demand; and using the target capacity area to execute charging and discharging operation corresponding to the current working condition demand. In the using process of the starting battery, the target capacity area corresponding to the working condition requirement can be used for carrying out charging and discharging operation, so that the situation of over-charging and over-discharging of the starting battery is effectively reduced, and the influence on the service life of the starting battery is reduced.

Description

Technical Field

[0001] The present application belongs to the field of battery technology, and in particular relates to a starting battery and a charging and discharging control method thereof, and a vehicle. Background Art

[0002] A starting battery, also known as a cranking battery, is a battery specifically designed to provide starting current for a vehicle's engine. Its main function is to provide a large instantaneous current when the engine is started, allowing the engine to run smoothly and start the vehicle. The starting battery is usually located in the engine compartment and is directly connected to the engine. Specifically, the starting battery stores electrical energy through chemical reactions. When the battery is fully charged, it can store a large amount of electrical energy. When the engine needs to be started, the battery quickly releases the stored electrical energy and provides a large enough current to run the engine. After the engine is started, the starting battery is also charged.

[0003] However, since the starting battery needs to release starting current or absorb energy during use, the battery may be overcharged or over-discharged, which can easily cause the starting battery to be damaged and affect the service life of the starting battery. Summary of the invention

[0004] The embodiment of the present application provides a charge and discharge control method for a starter battery, which can effectively reduce the overcharge and overdischarge of the starter battery and reduce the impact on the service life of the starter battery.

[0005] The embodiment of the present application provides a method for controlling the charge and discharge of a starter battery. The capacity of the starter battery is divided into a plurality of capacity regions. Different capacity regions correspond to different working conditions, including:

[0006] Determine the target capacity area based on current operating conditions;

[0007] The target capacity region is used to perform charging and discharging operations corresponding to the current operating condition requirements.

[0008] In the present application, the battery capacity of the starting battery is divided into multiple capacity areas, and different capacity areas correspond to different operating conditions. Therefore, during the use of the starting battery, the target capacity area corresponding to the operating condition can be used to perform charging and discharging operations, thereby effectively reducing the overcharging and over-discharging of the starting battery and reducing the impact on the service life of the starting battery.

[0009] In a possible implementation manner of the first aspect, determining the target capacity region according to the current operating condition requirement includes:

[0010] Obtaining operating parameters of the starting battery;

[0011] Determining the current operating condition requirement according to the operating condition parameters of the starting battery;

[0012] According to a first correspondence between operating condition requirements and capacity regions, a target capacity region corresponding to the current operating condition requirement is determined.

[0013] In a possible implementation manner of the first aspect, the capacity region of the starting battery includes normal use capacity, upper life retention capacity, lower life retention capacity, and safety retention capacity.

[0014] In a possible implementation manner of the first aspect, when the current operating condition requirement is an emergency high-current charging condition, the target capacity region is an upper life reserve capacity, and using the target capacity region to perform a charge and discharge operation corresponding to the current operating condition requirement includes:

[0015] The battery cell corresponding to the upper life retention capacity is used for charging operation.

[0016] In a possible implementation manner of the first aspect, when the current operating condition requirement is a safety emergency charging condition, the target capacity region is a safety reserved capacity, and using the target capacity region to perform a charging and discharging operation corresponding to the current operating condition requirement includes:

[0017] The battery cell corresponding to the safety reserve capacity is used for charging operation.

[0018] In a possible implementation manner of the first aspect, when the current operating condition demand is a normal discharging demand, the target capacity region is a normal usage capacity, and using the target capacity region to perform a charging and discharging operation corresponding to the current operating condition demand includes:

[0019] The discharge operation is performed using the battery cell corresponding to the conventional usage capacity.

[0020] In a possible implementation manner of the first aspect, when the current operating condition demand is a normal charging demand, the target capacity region is a normal usage capacity, and using the target capacity region to perform a charging and discharging operation corresponding to the current operating condition demand includes:

[0021] The discharge operation is performed using the battery cell corresponding to the conventional usage capacity.

[0022] In a possible implementation manner of the first aspect, when the current operating condition requirement is a non-cutoff output task operating condition, the target capacity region is a lower life reserve capacity, and using the target capacity region to perform a charge and discharge operation corresponding to the current operating condition requirement includes:

[0023] The battery cell corresponding to the lower life retention capacity is used for discharge operation.

[0024] In a possible implementation manner of the first aspect, after using the target capacity region to perform the charging and discharging operation corresponding to the current operating condition requirement, the method further includes:

[0025] During the charging and discharging process, monitor the charge status of each cell of the starting battery;

[0026] When the state of charge of the battery cell meets the balancing condition, the battery balancing operation is performed.

[0027] In a possible implementation manner of the first aspect, before determining the target capacity region according to the current operating condition demand, the method further includes:

[0028] The battery cell corresponding to each capacity region is determined according to the number of charge and discharge cycles of each battery cell of the starter battery.

[0029] In a second aspect, a starting battery is provided, wherein the battery capacity of the starting battery is divided into a plurality of capacity regions, and different capacity regions correspond to different working condition requirements, and the starting battery comprises:

[0030] N cells, where N is a positive integer greater than 1;

[0031] The charge and discharge control module is connected to the charge and discharge circuit of the starter battery, and is used to obtain the current working condition requirement of the starter battery, determine the target capacity area according to the current working condition requirement, and control the target capacity area to perform the charge and discharge operation corresponding to the current working condition requirement.

[0032] In a possible implementation manner of the second aspect, the starting battery further includes:

[0033] The circuit on-off control unit is connected to the charge-discharge control module and is used to control the on-off of the charge-discharge circuit.

[0034] In a possible implementation manner of the second aspect, the starting battery further includes:

[0035] The balancing module is connected to each battery cell and is used to balance the SOC of the battery cells during the charging and discharging process.

[0036] In a possible implementation of the second aspect, the starting battery further includes an indication module;

[0037] The indication module is used to indicate the working status of the starting battery.

[0038] In a third aspect, a charge and discharge control device for a starter battery is provided, comprising:

[0039] A determination module is used to determine the target capacity area according to the current working condition requirements;

[0040] A control module is used to use the target capacity area to perform the charging and discharging operations corresponding to the current operating condition requirements.

[0041] In a fourth aspect, an electronic device is provided, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the method as described in any one of the above-mentioned first aspects is implemented.

[0042] In a fifth aspect, a vehicle is provided, comprising a starting battery as described in any one of the second aspect or a charge and discharge control device as described in the third aspect, or an electronic device as described in the fourth aspect.

[0043] In a sixth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method of any one of the above-mentioned first aspects is implemented.

[0044] In a seventh aspect, an embodiment of the present application provides a chip system, the chip system includes a processor, the processor is coupled to a memory, and the processor executes a computer program stored in the memory to implement any of the above methods of the first aspect. The chip system can be a single chip, or a chip module composed of multiple chips.

[0045] In an eighth aspect, an embodiment of the present application provides a computer program product. When the computer program product is run on an electronic device, the electronic device executes any one of the above methods in the first aspect.

[0046] It can be understood that the beneficial effects of the second to eighth aspects mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0048] Figure 1 This is a schematic diagram of the structure of a starting battery provided in one embodiment of the present application;

[0049] Figure 2 is a schematic structural diagram of another starting battery provided in an embodiment of the present application;

[0050] Figure 3 is a schematic structural diagram of another starting battery provided in an embodiment of the present application;

[0051] Figure 4 This is a schematic diagram of battery capacity division of a starter battery provided in an embodiment of the present application;

[0052] Figure 5 It is a schematic diagram of battery capacity division of another starter battery provided in an embodiment of the present application;

[0053] Figure 6 is a schematic structural diagram of another starting battery provided in an embodiment of the present application;

[0054] Figure 7 is a schematic structural diagram of another starting battery provided in an embodiment of the present application;

[0055] Figure 8 It is a schematic diagram of the implementation flow of a method for controlling the charge and discharge of a starter battery provided in an embodiment of the present application;

[0056] Fig. 9 It is a schematic diagram of the implementation flow of another method for controlling the charge and discharge of a starter battery provided in an embodiment of the present application;

[0057] Fig.10 It is a structural schematic diagram of a charge and discharge control device for a starter battery provided in an embodiment of the present application;

[0058] Fig.11 It is a structural schematic diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0059] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0060] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0061] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0062] As used in the specification and appended claims of this application, the term "if" can be interpreted as "when" or "uponce" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "uponce it is determined" or "in response to determining" or "uponce [described condition or event] is detected" or "in response to detecting [described condition or event]", depending on the context.

[0063] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0064] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0065] A starting battery, also known as a starting battery, is a battery specifically used to provide starting current for a vehicle's engine. Its main function is to provide an instantaneous high current when the engine is started, so that the engine can run smoothly and start the vehicle. The starting battery is usually located in the engine compartment and is directly connected to the engine.

[0066] Specifically, the starting battery stores electrical energy through chemical reactions. When the battery is fully charged, it can store a large amount of electrical energy. When the engine needs to be started, the battery quickly releases the stored electrical energy and provides enough current to run the engine. After the engine is started, the starting battery is also charged.

[0067] However, since the starting battery needs to release starting current or absorb energy during use, the battery may be overcharged or over-discharged, which can easily cause the starting battery to be damaged and affect the service life of the starting battery.

[0068] Based on this, an embodiment of the present application provides a charge and discharge control method for a starter battery, which divides the battery capacity of the starter battery into multiple capacity areas, and different capacity areas correspond to different operating conditions. Therefore, during the use of the starter battery, the target capacity area corresponding to the operating condition can be used to perform charge and discharge operations, thereby effectively reducing the overcharge and over-discharge of the starter battery and reducing the impact on the service life of the starter battery.

[0069] The following is a description of the starting battery provided in the embodiment of the present application in conjunction with the accompanying drawings.

[0070] See also Figure 1 , Figure 1 A schematic diagram of the internal circuit structure of a starting battery is shown. Figure 1 As shown, the starting battery 10 may include a plurality of cells, and the plurality of cells are connected in series. For example, Figure 1 The starter battery 10 further includes a charge and discharge control module 11, wherein the charge and discharge control module 11 can be specifically connected in series in the charge and discharge circuit of the starter battery 10, that is, it can be connected to the internal circuit of the positive output port P+ and the negative output port P- of the starter battery 10. The charge and discharge control module 11 can obtain the current operating condition requirement, determine the target capacity area according to the current operating condition requirement, and control the target capacity area to perform the charge and discharge operation corresponding to the current operating condition requirement.

[0071] like Figure 1 As shown, the starting battery 10 may further include a circuit on-off control unit 12 , wherein the circuit on-off control unit 12 may include a charging circuit control unit and a discharging circuit control unit.

[0072] In specific applications, such as Figure 2 As shown, the charging loop control unit may include a first MOS transistor P1 and a MOS transistor driving circuit 121a, and the discharging loop control unit may include a second MOS transistor P2 and a MOS transistor driving circuit 121a.

[0073] It can be understood that the charging circuit control unit can control the on and off of the charging circuit, and the discharging circuit control unit can control the channel of the discharging circuit.

[0074] Among them, the MOS tube driving circuit can be configured according to the model and type of the MOS tube, and the first MOS tube and the second MOS tube can be selected according to actual application requirements, and this application does not make any specific restrictions on this.

[0075] Figure 2Only NMOS tubes are taken as an example. Of course, the switching devices selected in the above-mentioned charging circuit control unit and the above-mentioned discharging circuit control unit can also select other types of switching devices to realize the on-off control of the charging and discharging circuits. For example, devices such as CNC switches can be selected. The embodiments of the present application do not make the only limitation.

[0076] It is understandable that the above-mentioned charge and discharge control module 11 can be specifically an integrated circuit chip, for example, a general-purpose processor, a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on chip (SoC), a network processor (NP), a digital signal processing circuit (DSP), a microcontroller unit (MCU), a programmable controller (PLD), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components and other integrated units (neural-network processing unit, NPU) and graphics processing unit (graphics processing unit, GPU), and can also include an application processor (application processor, AP), a modem processor, an image signal processor (digital signal processor, DSP), and / or a baseband processor, etc., without specific limitation. The above-mentioned charge and discharge control module 11 can execute the charge and discharge control method provided in the embodiment of the present application to realize the charge and discharge control of the starter battery.

[0077] See also Figure 3 , Figure 3 FIG. 2 shows a schematic diagram of the structure of another starting battery provided in an embodiment of the present application. Figure 3 As shown, the starting battery provided in the embodiment of the present application, the above-mentioned charging and discharging control module 11 may include an active charging unit 111 and a calculation control unit 112, wherein the active charging unit 111 controls the starting battery to be charged based on an intermittent constant current charging method, and the above-mentioned calculation control unit 112 is used to determine the target capacity area, and control the target capacity area to perform the charging and discharging operation corresponding to the current working condition requirements.

[0078] For example, see Figure 4 , Figure 4FIG. 1 shows a schematic diagram of the battery capacity division result of the starter battery provided in an embodiment of the present application. Figure 4 As shown, the battery capacity of the above-mentioned starting battery can be divided into normal use capacity, upper life retention capacity, lower life retention capacity and safety retention capacity.

[0079] It should be noted that each capacity region may correspond to one or more operating condition requirements, and there is a corresponding relationship (called a first corresponding relationship) between the capacity region and the operating condition requirements.

[0080] In specific applications, the conventional usage capacity can be the battery capacity corresponding to the normal operating conditions of the battery, the upper life retention capacity can be the capacity area corresponding to the emergency high-current charging condition (when the battery charging current is greater than the preset current threshold, for example, when the starting battery needs to absorb a large amount of energy), the lower life retention capacity can be the capacity area corresponding to the non-cutoff output task condition (that is, when performing non-cutoff output tasks), and the safety retention capacity is the capacity area for safety emergency conditions (when performing emergency tasks required for safety).

[0081] It is understandable that the above-mentioned non-interruptible output task means that the output cannot be interrupted, that is, the discharge process of the starting battery cannot be interrupted and needs to be continuously discharged. The above-mentioned safety emergency conditions refer to tasks that require emergency discharge or charging for vehicle driving safety, such as safety emergency discharge conditions and safety emergency charging conditions. The above-mentioned conventional conditions may include conventional discharge conditions and conventional charging conditions.

[0082] In the embodiment of the present application, the use of the above-mentioned conventional usage capacity will not aggravate the attenuation of the battery service life, while the use of the upper life retention capacity and the lower life retention capacity may affect the battery service life, and the use of the safety retention capacity will seriously affect the service life of the starting battery.

[0083] In a specific application, the calculation control unit 112 can determine the current operating condition requirement of the starting battery according to the operating condition parameters of the starting battery. The operating condition parameters can include but are not limited to the charging current during the charging process, the discharging current during the discharging process, the charging and discharging time, the battery power execution task type, etc.

[0084] In a specific application, the types of tasks to be executed include, but are not limited to, emergency discharging tasks, emergency charging tasks, regular charging tasks, regular discharging tasks, non-cutoff output tasks, and overcurrent charging tasks.

[0085] In the embodiment of the present application, different types of tasks to be performed can be determined based on the type of instructions issued by the vehicle controller. It is understandable that the vehicle controller can determine the tasks that the starter battery needs to perform based on the vehicle's operating conditions, user's operating instructions, and other information, and then output corresponding instructions to the charge and discharge control module 11 of the starter battery, and the charge and discharge control module 11 controls the starter battery to perform corresponding operations.

[0086] In a specific application, different operation instructions may carry different instruction identifiers. After receiving the operation instruction from the vehicle controller, the charge and discharge control module may determine the execution task type corresponding to the operation instruction based on the instruction identifier.

[0087] Among them, the vehicle controller can be a body control module (BCM). It is understandable that the body controller can also be called a body computer, which also refers to an electronic control unit (ECU) used to control the body electrical system in automotive engineering. Common functions of the body controller include controlling electric windows, electric rearview mirrors, air conditioning, headlights, turn signals, anti-theft locking system, central locking, defrosting device, etc. The body controller can be connected to other vehicle-mounted ECUs through a bus.

[0088] In an embodiment of the present application, the charge and discharge control module 11 of the starter battery can obtain the charge and discharge current during the charge and discharge process, and then determine the current working condition requirement of the starter battery according to the charge and discharge current.

[0089] In specific applications, the charge and discharge control module can determine whether the current state is an emergency high-current charging condition based on the size of the charging current, and can also determine whether the current state is an uninterruptible output task condition based on the size of the discharge current and the discharge duration.

[0090] In some embodiments, the charge and discharge control module 11 can comprehensively determine the current working condition requirement of the starter battery according to information such as the charge and discharge current during the charge and discharge process and the type of task to be performed.

[0091] Exemplarily, assuming that the charge and discharge control module 11 determines that the type of task currently being executed is an emergency charging task and the charging current exceeds the preset current threshold, it can be determined that the current operating condition requirement is an emergency high-current charging condition. According to the correspondence between the operating condition requirement and the capacity area (ie, the first correspondence), the target capacity area can be determined to be the upper life retention capacity.

[0092] As another example, assuming that the charge and discharge control module 11 determines that the type of task currently being executed is a non-cutoff output task, and that it is in a discharging state at this time, it can be determined that the current operating condition requirement of the starting battery is a non-cutoff output task condition, and based on the first correspondence between the operating condition requirement and the capacity area, it can be determined that the target capacity area is the lower life retention capacity.

[0093] It is understandable that the above-mentioned capacity area division of the battery capacity is only an example, and the number of capacity areas of the battery capacity can be determined according to various working conditions in the actual application process. Figure 3 It only shows a possible implementation method. In actual application, the capacity area of ​​the battery capacity can also be divided according to the working conditions. For example, it can be divided into conventional charging capacity, conventional discharging capacity, upper life retention capacity, lower life retention capacity and safety retention capacity, etc.

[0094] It can also be understood that when the starting battery responds to different working conditions, the corresponding charging and discharging operations are performed in the corresponding capacity areas, so that the battery state can be maintained, that is, the power in other capacity areas will not be affected, thereby reducing the overcharging and over-discharging of the starting battery.

[0095] For example, see Figure 5 , Figure 5 A schematic diagram of the division result provided by another embodiment of the present application is given, such as Figure 5 As shown, the battery capacity of the starting battery provided in the embodiment of the present application is divided into normal use capacity, upper life retention capacity, lower life retention capacity, standby charge capacity and safety retention capacity.

[0096] Among them, the standby charge capacity is the capacity area corresponding to the condition where it is not suitable to cut off the output (i.e., to perform the task where it is not suitable to cut off the output) or the emergency starting condition.

[0097] In the embodiment of the present application, the range of the above-mentioned reserve charge capacity can be determined based on the user's selection, that is, the user can select a regional range of the reserve charge capacity, and the use of this capacity range will not aggravate the attenuation of the service life of the starting battery.

[0098] In a specific application, when the current operating condition requires the above-mentioned operating condition where it is not suitable to cut off the output, the charge and discharge control module 11 can use the above-mentioned reserve charge capacity to perform charge and discharge operations.

[0099] It can be seen from the above that the battery capacity of the starting battery provided in the embodiment of the present application is divided into multiple capacity areas to cope with different working conditions. The battery state can be maintained under different working conditions, thereby reducing the occurrence of overcharging and over-discharging of the battery and extending the battery life.

[0100] See also Figure 6 , Figure 6 FIG. 2 shows a schematic diagram of the structure of a starting battery provided by another embodiment of the present application. Figure 5 As shown, the starting battery may further include a temperature control module 13 .

[0101] The temperature control module 13 is used to control the battery temperature during the charging and discharging process of the starter battery.

[0102] In specific applications, during the use of the starting battery, if the battery temperature changes greatly or the battery temperature is too high, it may cause damage to the starting battery, and if the battery temperature is too low, it may affect the battery efficiency. Therefore, during the battery charging and discharging process, the battery temperature needs to be controlled within a certain range.

[0103] In an embodiment of the present application, the temperature control module 13 can control the battery temperature to be between 0°C and 60°C.

[0104] It should be noted that the battery temperature range can be set according to actual application requirements, and the embodiment of the present application does not impose specific restrictions on this. For example, the battery temperature range can also be set between 10°C and 60°C, or between 15°C and 65°C.

[0105] In the embodiment of the present application, the temperature control module 13 can dynamically adjust the battery temperature of the battery so that the battery temperature is within the battery temperature range.

[0106] In the present application, in addition to using the corresponding capacity area for charge and discharge operations according to the current operating conditions, the temperature of the starter battery can also be controlled so that the starter battery can be charged and discharged within a suitable temperature range to improve the battery operation safety and efficiency.

[0107] See also Figure 7 , Figure 7 FIG. 2 shows a schematic diagram of the structure of a starting battery provided by another embodiment of the present application. Figure 7 As shown, the starting battery may further include a balancing module 14 .

[0108] In the embodiment of the present application, the balancing module 14 is used to achieve SOC balancing among multiple cells in the starter battery.

[0109] In the embodiment of the present application, the balancing module 14 may perform balancing in a passive balancing manner.

[0110] Please refer again Figure 7 ,like Figure 7 As shown, the starting battery provided in the embodiment of the present application may further include an indication module 15 .

[0111] In a specific application, the indication module 15 can be used to indicate the working status of the starting battery.

[0112] In a specific application, the indication module 15 may include an LED status indicator light.

[0113] Exemplarily, when the starting battery is in normal working condition, the LED status indicator light can be controlled to flash at preset time intervals, for example, it can flash at intervals of 1 second, that is, it can work in a cycle of turning on for 1 second and off for 1 second, and the color of the LED indicator light can be controlled to be green.

[0114] As another example, for an abnormal discharge state, the LED status indicator light can be controlled to be always on at a low brightness.

[0115] As another example, for long-term storage, that is, when not in use, the LED status indicator light can be controlled to turn off.

[0116] It should be noted that the lighting mode and color of the above-mentioned indicator lights can be set according to actual application requirements, and the above-mentioned methods are only examples and not limitations.

[0117] It can be understood that the above is only an exemplary description of the starting battery provided in the embodiment of the present application. The starting battery in the present application may also include other modules or units, for example, it may also include a communication module, through which the starting battery can communicate with an external controller to receive operating instructions or transmit battery information. The communication module may include a communication interface, and communicates with the external controller through the communication interface. The type of communication interface can be designed according to actual application requirements, and the present application does not impose the sole limitation on this. For example, it may also include a humidity control module and other related modules for monitoring and regulating the humidity of the battery working environment.

[0118] The above is an introduction to the starting battery provided in the embodiment of the present application. The following is an explanation of the charging and discharging control method of the starting battery provided in the embodiment of the present application with reference to the accompanying drawings.

[0119] See 8, Figure 8 The implementation process of a charge and discharge control method for a starter battery provided in an embodiment of the present application is shown. It can be understood that the execution subject of the above charge and discharge control method can be the charge and discharge control module in the above starter battery, wherein the capacity of the starter battery is divided into multiple capacity regions, and different capacity regions correspond to different working conditions (specifically, it can be a charge and discharge control chip). Figure 8 As shown, the above-mentioned starting battery charge and discharge control method may include the following steps:

[0120] In S81, a target capacity region is determined according to current operating requirements.

[0121] The current operating condition requirement refers to the current operating condition requirement of the starting battery, that is, the charging and discharging tasks that the starting battery currently needs to perform.

[0122] In the embodiment of the present application, the charge and discharge control module can obtain the operating parameters of the starting battery and determine the current operating requirements according to the operating parameters of the starting battery.

[0123] In specific applications, the above operating parameters may include but are not limited to: charging current during charging, discharging current during discharging, charging and discharging time, battery power execution task type, etc.

[0124] In a specific application, the types of tasks to be executed include, but are not limited to, emergency discharging tasks, emergency charging tasks, regular charging tasks, regular discharging tasks, non-cutoff output tasks, and overcurrent charging tasks.

[0125] In the embodiment of the present application, different types of tasks to be performed can be determined based on the type of instructions issued by the vehicle controller. It is understandable that the vehicle controller can determine the tasks that the starter battery needs to perform based on the vehicle's operating conditions, user's operating instructions, and other information, and then output corresponding instructions to the charge and discharge control module of the starter battery, and the charge and discharge control module controls the starter battery to perform corresponding operations.

[0126] Based on this, in an embodiment of the present application, the above S81 may specifically include the following steps:

[0127] Obtaining operating parameters of the starting battery;

[0128] Determine the current working condition requirements based on the working condition parameters of the starting battery;

[0129] According to the first corresponding relationship between the operating condition requirement and the capacity area, a target capacity area corresponding to the current operating condition requirement is determined.

[0130] In an embodiment of the present application, the charge and discharge control module 11 of the starter battery can obtain the charge and discharge current during the charge and discharge process, and then determine the current working condition requirement of the starter battery according to the charge and discharge current.

[0131] In specific applications, the charge and discharge control module can determine whether the current state is an emergency high-current charging condition based on the size of the charging current, and can also determine whether the current state is an uninterruptible output task condition based on the size of the discharge current and the discharge duration.

[0132] In some embodiments, the charge and discharge control module 11 can comprehensively determine the current working condition requirement of the starter battery according to information such as the charge and discharge current during the charge and discharge process and the type of task to be performed.

[0133] Exemplarily, assuming that the charge and discharge control module 11 determines that the type of task currently being executed is an emergency charging task and the charging current exceeds the preset current threshold, it can be determined that the current operating condition requirement is an emergency high-current charging condition. According to the correspondence between the operating condition requirement and the capacity area (ie, the first correspondence), the target capacity area can be determined to be the upper life retention capacity.

[0134] As another example, assuming that the charge and discharge control module 11 determines that the type of task currently being executed is a non-cutoff output task, and that it is in a discharging state at this time, it can be determined that the current operating condition requirement of the starting battery is a non-cutoff output task condition, and based on the first correspondence between the operating condition requirement and the capacity area, it can be determined that the target capacity area is the lower life retention capacity.

[0135] It can be understood that when dividing the battery capacity of the starting battery, the battery capacity can be divided according to the working condition requirements. Therefore, there is a first corresponding relationship between the capacity area and the working condition requirements. That is, after determining the current working condition requirements, the target capacity area corresponding to the current working condition requirements can be determined based on the first corresponding relationship.

[0136] In S82, the target capacity region is used to perform charging and discharging operations corresponding to the current operating condition requirements.

[0137] In the embodiment of the present application, after the target capacity region is determined, the charge and discharge control module will control the target capacity region to perform the charge and discharge operation corresponding to the current operating condition requirement.

[0138] In one embodiment of the present application, when the current operating condition requires an emergency high-current charging condition, the target capacity area can be determined to be the upper life retention capacity. After determining that the target capacity area is the upper life retention capacity, the charging and discharging operations corresponding to the current operating condition requirement can be specifically: using the upper life retention capacity to absorb external electrical energy, that is, using the upper life retention capacity to perform high-current charging operations.

[0139] It should be noted that the above-mentioned high-current charging operation can specifically be a charging operation based on the maximum allowable current. The maximum allowable current of the starter battery can be determined according to the type and specification of the starter battery, and this application does not impose any specific restrictions on this.

[0140] In one embodiment of the present application, when the current operating condition demand is a conventional discharge demand, the target capacity area can be determined to be the conventional usage capacity. After determining that the target capacity area is the conventional usage capacity and the current operating condition demand is the conventional discharge demand, the above-mentioned charging and discharging operation can specifically be: using the conventional usage capacity for discharge operation.

[0141] In one embodiment of the present application, when the current operating condition demand is a conventional charging demand, the target capacity area can be determined to be the conventional usage capacity. When it is determined that the target capacity area is the conventional usage capacity and the current operating condition demand is the conventional charging demand, the above-mentioned charging and discharging operation can specifically be: using the conventional usage capacity for charging operations.

[0142] In one embodiment of the present application, when the current operating condition requires an output task condition that cannot be cut off, the target capacity area can be determined as the lower life retention capacity. When the target capacity area is determined to be the conventional usage capacity and the current operating condition requires an output task condition that cannot be cut off, the above-mentioned charging and discharging operation can specifically be: using the lower life retention capacity to perform non-cut-off discharge operation.

[0143] In one embodiment of the present application, when the current operating condition requires a safety emergency charging condition, the target capacity area can be determined as the safety reserved capacity. When the target capacity area is determined to be the safety reserved capacity and the current operating condition requires a safety emergency charging condition, the above-mentioned charging and discharging operation can specifically be: using the safety reserved capacity for charging operations.

[0144] In one embodiment of the present application, when the current operating condition requires that the output should not be cut off, the target capacity area can be determined as the standby charge capacity. When the target capacity area is determined to be the standby charge capacity and the current operating condition requires that the output should not be cut off, the above-mentioned charging and discharging operation can specifically be: using the standby charge capacity for discharging operation.

[0145] In one embodiment of the present application, when the current operating condition requirement is an emergency starting condition, the target capacity area can be determined as the standby charge capacity. When the target capacity area is determined to be the standby charge capacity and the current operating condition requirement is an emergency starting condition, the above-mentioned charging and discharging operation can specifically be a large current discharge operation using the standby charge capacity to achieve a starting operation.

[0146] It should be noted that, in the embodiment of the present application, the above-mentioned charging operation refers to the operation of absorbing external energy into the starting battery, that is, charging the starting battery, and the discharging operation refers to the operation of releasing the energy in the starting battery to the outside, that is, the operation of discharging through the starting battery.

[0147] In one embodiment of the present application, different capacity regions may correspond to different battery cells of the starting battery, that is, each capacity region has its corresponding battery cell, and the above-mentioned charge and discharge operation using the target capacity region may specifically be the charge and discharge operation using the battery cell corresponding to the target capacity region.

[0148] Exemplarily, assuming that the above-mentioned charging and discharging operation is a high-current discharge operation using the reserve charge capacity, then specifically, the battery cell corresponding to the reserve charge capacity may be discharged according to the required discharge current.

[0149] As another example, assuming that the above-mentioned charging and discharging operation is a charging operation using a safety reserve capacity, then specifically, the battery cell corresponding to the safety reserve capacity may be charged.

[0150] As another example, assuming that the above-mentioned charge and discharge operation is a non-cut-off discharge operation using the lower life retention capacity, it can be specifically performed by using the battery cell corresponding to the lower life retention capacity for discharge.

[0151] It can be seen from the above that the charge and discharge control method for the starting battery provided in the embodiment of the present application uses the battery capacity area corresponding to the operating condition requirements to perform the charge and discharge operations, which can achieve battery status maintenance based on different operating condition requirements, can reduce the occurrence of overcharge and overdischarge of the battery, and extend the battery life.

[0152] See also Fig. 9 , Fig. 9 FIG. 2 is a schematic diagram showing the implementation flow of another method for controlling the charge and discharge of a starter battery provided in an embodiment of the present application. Fig. 9 As shown, in the embodiment of the present application, the above-mentioned charge and discharge control method includes the following steps:

[0153] In S91, a target capacity region is determined according to current operating requirements.

[0154] In S92, the target capacity region is used to perform charging and discharging operations corresponding to the current operating condition requirements.

[0155] For the relevant contents of S91 to S92, reference can be made to the relevant descriptions of S81 to S82, and this application will not repeat them.

[0156] In S93, during the charging and discharging process, the charge state of each cell of the starter battery is monitored.

[0157] The state of charge (SOC) refers to the ratio of the current remaining power in the battery cell to the maximum power when the battery is fully charged.

[0158] It should be noted that a battery cell, i.e. a battery cell, is a battery cell, which is a basic unit device that directly converts chemical energy into electrical energy, and usually includes: electrodes, diaphragms, electrolytes, casings and terminals.

[0159] The above-mentioned starting battery may include a plurality of battery cells, and the plurality of battery cells may be connected in series and parallel to form a battery module.

[0160] During the charging and discharging process, the equalization module of the starter battery can monitor the charge state of each battery cell in real time to determine whether equalization operation is needed.

[0161] In S94 , when the state of charge of the battery cell meets the balancing condition, a battery balancing operation is performed.

[0162] In the embodiment of the present application, the charge state of the battery cell meets the balancing condition, which can specifically be that the difference between the maximum charge state and the minimum charge state exceeds the preset difference threshold. It can be understood that the role of battery balancing is to balance the remaining power of each battery cell as much as possible. Therefore, when the difference between the maximum charge state and the minimum charge state exceeds the preset difference threshold, it can be considered that battery balancing operation is required to reduce the difference in the remaining power between each battery cell.

[0163] It can be understood that in the embodiment of the present application, different battery capacity ranges may correspond to using different battery cells to perform charging and discharging operations. Therefore, when performing a balancing operation, the balancing operation can be performed on the battery cells used.

[0164] From the above, it can be seen that the battery life can be effectively improved by balancing the cells during the charging and discharging process.

[0165] In one embodiment of the present application, in order to make the usage times of each battery cell more balanced, when performing the charging and discharging operation, the battery cell used corresponding to each battery capacity area can also be dynamically adjusted.

[0166] In a specific application, after the starter battery is started, the charge and discharge control module can obtain the number of charge and discharge cycles of each battery cell in the starter battery, and then determine the battery cell corresponding to each capacity region according to the number of charge and discharge cycles of each battery cell.

[0167] In the embodiment of the present application, the number of charge and discharge cycles of the above-mentioned battery cell may be the number of charge and discharge cycles used in the historical use period of the battery cell, or may be the remaining number of charge and discharge cycles available.

[0168] In the embodiment of the present application, the number of charge and discharge cycles of the above-mentioned battery cell is taken as the number of charge and discharge cycles used in the historical use period of the battery cell. Then, when determining the battery cells corresponding to each capacity area, the battery cells with a larger number of charge and discharge cycles can be set as the battery cells corresponding to the safety reserve capacity, and the battery cells with a smaller number of charge and discharge cycles can be set as the battery cells corresponding to the regular use capacity, and so on.

[0169] That is, in the embodiment of the present application, before determining the target capacity region according to the current operating condition requirement, the battery cells corresponding to each target capacity region may also be dynamically adjusted according to the number of charge and discharge cycles of each battery cell in the starter battery.

[0170] The present application also provides a charge and discharge control device, which can be provided in the above-mentioned starting battery and can correspond to the charge and discharge control module 11 in the above-mentioned starting battery embodiment. Fig.10 , Fig.10 The charge and discharge control device provided in the embodiment of the present application may include a determination module 101 and a control module 102 .

[0171] The determination module 101 is used to determine the target capacity area according to the current working condition requirements.

[0172] The control module 102 is used to use the target capacity region to perform the charging and discharging operations corresponding to the current operating condition requirements.

[0173] In some implementations, the above-mentioned determination module 101 can be specifically used to obtain the operating parameters of the starting battery; determine the current operating condition requirement according to the operating parameters of the starting battery; and determine the target capacity area corresponding to the current operating condition requirement according to the first corresponding relationship between the operating condition requirement and the capacity area.

[0174] In some implementations, the charge and discharge control device may further include a balancing module, which is used to monitor the charge state of each battery cell of the starter battery during the charge and discharge process; when the charge state of the battery cell meets the balancing condition, perform a battery balancing operation.

[0175] In some implementations, the charge and discharge control device may further include a region adjustment module, which is used to determine the battery cell corresponding to each capacity region according to the number of charge and discharge cycles of each battery cell of the starter battery.

[0176] In some implementations, when the current operating condition requires an emergency high-current charging condition, the target capacity region is an upper life reserve capacity, and the control module 102 is specifically configured to perform charging operations using a battery cell corresponding to the upper life reserve capacity.

[0177] In some implementations, when the current operating condition requirement is a safety emergency charging condition, the target capacity area is a safety reserve capacity, and the control module 102 is specifically configured to perform charging operations using a battery cell corresponding to the safety reserve capacity.

[0178] In some implementations, when the current operating condition requirement is a regular discharge requirement, the target capacity region is a regular usage capacity, and the control module 102 is specifically configured to perform a discharge operation using a battery cell corresponding to the regular usage capacity.

[0179] In some implementations, when the current operating condition requirement is a conventional charging requirement, the target capacity region is a conventional usage capacity, and the control module 102 is specifically configured to perform a discharge operation using a battery cell corresponding to the conventional usage capacity.

[0180] In some embodiments, when the current operating condition requirement is a non-cutoff output task condition, the target capacity region is a lower life reserve capacity, and the control module 102 is specifically configured to perform a discharge operation using a battery cell corresponding to the lower life reserve capacity.

[0181] It should be understood that Fig.10 In the structural block diagram of the charge and discharge control device shown in FIG. Figures 8 to 9 The steps in the corresponding embodiments, and for Figures 1 to 4 Each step in the corresponding embodiment has been explained in detail in the above embodiment. Figures 1 to 4 as well as Figures 1 to 4 The relevant descriptions in the corresponding embodiments are not repeated here.

[0182] It can be seen from the above that the charge and discharge control device provided in the embodiment of the present application can also use the target capacity area corresponding to the working condition requirements to perform charge and discharge operations during the use of the starting battery, thereby effectively reducing the overcharge and over-discharge of the starting battery and reducing the impact on the service life of the starting battery.

[0183] An embodiment of the present application also provides a vehicle, which may include the starting battery described in any of the above embodiments.

[0184] The embodiment of the present application also provides an electronic device, Fig.11 is a structural block diagram of an electronic device provided by another embodiment of the present application. Fig.11 As shown, the electronic device 1100 of this embodiment includes: a processor 1101, a memory 1102, and a computer program 112 stored in the memory 1102 and executable by the processor 1101, such as a program for generating a method for an evaluation report. When the processor 1101 executes the computer program 1103, the steps in each embodiment of the above-mentioned charge and discharge control method are implemented, such as Figure 8 Alternatively, the processor 1101 implements the above when executing the computer program 1103 Figure 1 The functions of each module in the corresponding embodiment are, for example, Fig.10 For details on the functions of the units 101 to 102 shown, please refer to Fig.10 Related description in the corresponding embodiment.

[0185] Exemplarily, the computer program 1103 may be divided into one or more modules, one or more modules are stored in the memory 1102, and are executed by the processor 1101 to complete the present application. One or more modules may be a series of computer program instruction segments that can complete specific functions, and the instruction segments are used to describe the execution process of the computer program 1103 in the electronic device 1100. For example, the computer program 1103 may be divided into various unit modules, and the specific functions of each module are as described above.

[0186] The electronic device 1100 may include, but is not limited to, a processor 1101 and a memory 1102. Those skilled in the art will appreciate that Fig.11 It is only an example of the electronic device 1100 and does not constitute a limitation of the electronic device 1100. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, the electronic device may also include input and output devices, network access devices, buses, etc.

[0187] The processor 1101 may be a central processing unit, or other general-purpose processors, digital signal processors, application-specific integrated circuits, off-the-shelf programmable gate arrays or other programmable logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc. The memory 1102 may be an internal storage unit of the electronic device 1100, such as a hard disk or memory of the electronic device 11. The memory 1102 may also be an external storage device of the electronic device 1100, such as a plug-in hard disk, a smart memory card, a flash memory card, etc. equipped on the electronic device 1100. Furthermore, the memory 1102 may also include both an internal storage unit of the electronic device 1100 and an external storage device.

[0188] An embodiment of the present application further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in the above-mentioned method embodiments can be implemented.

[0189] An embodiment of the present application provides a computer program product. When the computer program product runs on an electronic device, the electronic device can implement the steps in the above-mentioned method embodiments when executing the computer program product.

[0190] An embodiment of the present application provides a chip system, which may include a processor, the processor is coupled to a memory, and the processor executes a computer program stored in the memory to implement the steps in the above-mentioned various method embodiments.

[0191] The above chip system may be a single chip, or a chip module composed of multiple chips.

[0192] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present application implements all or part of the processes in the above-mentioned embodiment method, which can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may at least include: any entity or device that can carry the computer program code to the device / electronic device, a recording medium, a computer memory, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), an electric carrier signal, a telecommunication signal, and a software distribution medium. For example, a USB flash drive, a mobile hard disk, a magnetic disk or an optical disk. In some jurisdictions, according to legislation and patent practice, computer-readable media cannot be electric carrier signals and telecommunication signals.

[0193] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0194] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0195] In the embodiments provided in the present application, it should be understood that the disclosed devices / network equipment and methods can be implemented in other ways. For example, the device / network equipment embodiments described above are merely schematic. For example, the division of the modules or units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0196] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0197] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A method for controlling the charge and discharge of a starting battery, characterized in that: The capacity of the starter battery is divided into a plurality of capacity regions, and different capacity regions correspond to different working condition requirements. The charge and discharge control method of the starter battery includes: Determine the target capacity area based on current operating conditions; The target capacity region is used to perform charging and discharging operations corresponding to the current operating condition requirements.

2. The method for controlling the charge and discharge of a starting battery according to claim 1, characterized in that: Determining the target capacity area according to the current working condition requirements includes: Obtaining operating parameters of the starting battery; Determining the current operating condition requirement according to the operating condition parameters of the starting battery; According to a first correspondence between operating condition requirements and capacity regions, a target capacity region corresponding to the current operating condition requirement is determined.

3. The method for controlling the charge and discharge of a starting battery according to claim 1 or 2, characterized in that: The capacity region of the starting battery includes normal use capacity, upper life reserve capacity, lower life reserve capacity and safety reserve capacity.

4. The method for controlling the charge and discharge of a starting battery according to claim 3, characterized in that: In the case where the current operating condition requirement is an emergency high-current charging condition, the target capacity region is an upper life reserve capacity, and using the target capacity region to perform the charging and discharging operation corresponding to the current operating condition requirement includes: using the battery cell corresponding to the upper life reserve capacity to perform a charging operation; In the case where the current operating condition requirement is a safety emergency charging condition, the target capacity region is a safety reserve capacity, and the using the target capacity region to perform the charging and discharging operation corresponding to the current operating condition requirement includes: using the battery cell corresponding to the safety reserve capacity to perform a charging operation; In the case where the current operating condition requirement is a conventional discharge requirement, the target capacity region is a conventional usage capacity, and using the target capacity region to perform the charge and discharge operation corresponding to the current operating condition requirement includes: using the battery cell corresponding to the conventional usage capacity to perform a discharge operation; In the case where the current operating condition requirement is a conventional charging requirement, the target capacity region is a conventional usage capacity, and using the target capacity region to perform the charging and discharging operation corresponding to the current operating condition requirement includes: using the battery cell corresponding to the conventional usage capacity to perform a discharging operation; When the current operating condition requirement is an output task condition that cannot be cut off, the target capacity area is a lower life retention capacity, and using the target capacity area to perform the charging and discharging operation corresponding to the current operating condition requirement includes: using the battery cell corresponding to the lower life retention capacity to perform a discharging operation.

5. The method for controlling the charge and discharge of a starting battery according to any one of claims 1 to 3, characterized in that: After the target capacity region is used to perform the charging and discharging operation corresponding to the current operating condition requirement, the method further includes: During the charging and discharging process, monitor the charge state of each cell of the starting battery; When the state of charge of the battery cell meets the balancing condition, the battery balancing operation is performed.

6. A starting battery, characterized in that: The battery capacity of the starting battery is divided into a plurality of capacity regions, and different capacity regions correspond to different working condition requirements. The starting battery includes: N cells, where N is a positive integer greater than 1; The charge and discharge control module is connected to the charge and discharge circuit of the starter battery, and is used to obtain the current working condition requirement of the starter battery, determine the target capacity area according to the current working condition requirement, and control the target capacity area to perform the charge and discharge operation corresponding to the current working condition requirement.

7. The starting battery according to claim 6, characterized in that The starting battery also includes: The circuit on-off control unit is connected to the charge-discharge control module and is used to control the on-off of the charge-discharge circuit.

8. The starting battery according to claim 6 or 7, characterized in that: The starting battery also includes: The balancing module is connected to each battery cell and is used to balance the SOC of the battery cells during the charging and discharging process.

9. The starting battery according to any one of claims 6 to 8, characterized in that The starting battery also includes an indication module; The indicating module is used to indicate the working status of the starting battery.

10. A vehicle, characterized in that: The vehicle comprises a starting battery as claimed in any one of claims 11 to 14.

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