A starting battery and a charge-discharge control method thereof, and a vehicle

Abstract

The application is suitable for the technical field of batteries, and provides a starting battery, a discharge control method of the starting battery, an electronic device and a computer program product. The capacity of the starting battery is divided into multiple capacity regions, different capacity regions correspond to different working condition requirements, and the charge and discharge control method of the starting battery comprises the following steps: determining a target capacity region according to a current working condition requirement; and performing a charge and discharge operation corresponding to the current working condition requirement by using the target capacity region. In the use process of the starting battery, the charge and discharge operation can be performed by using the target capacity region corresponding to the working condition requirement, so that the overcharging and overdischarging of the starting battery are effectively reduced, and the influence on the service life of the starting battery is reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of batteries, and particularly relates to a starting battery and a charge-discharge control method thereof and a vehicle. BACKGROUND

[0002] A starting battery, also known as a starter battery, is a battery specially used to provide a starting current for a vehicle engine. Its main function is to provide a large instantaneous current when the engine starts, so that the engine can run smoothly, thereby starting 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 reaction. When the battery is fully charged, it can store a large amount of electrical energy. When the engine needs to start, the battery quickly releases the stored electrical energy to provide a large enough current to make the engine run. After the engine starts, the starting battery will also be charged.

[0003] However, since the starting battery needs to release a starting current or absorb energy during application, there may be overcharging and over-discharging of the battery, which can easily damage the starting battery and affect the service life of the starting battery. SUMMARY

[0004] The embodiments of the application provide a charge-discharge control method of a starting battery, which can effectively reduce the overcharging and over-discharging of the starting battery and reduce the impact on the service life of the starting battery.

[0005] The embodiments of the application provide a charge-discharge control method of a starting battery. The capacity of the starting battery is divided into multiple capacity regions, and different capacity regions correspond to different working condition requirements, including:

[0006] determining a target capacity region according to a current working condition requirement;

[0007] performing a charge-discharge operation corresponding to the current working condition requirement using the target capacity region.

[0008] In the application, the battery capacity of the starting battery is divided into multiple capacity regions, and different capacity regions correspond to different working condition requirements, so that in the use process of the starting battery, the target capacity region corresponding to the working condition requirement can be used to perform the charge-discharge operation, 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, the determining a target capacity region according to a current working condition requirement comprises:

[0010] obtaining a working condition parameter of the starting battery;

[0011] determining the current working condition requirement according to the working condition parameter of the starting battery.

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

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

[0014] In a possible implementation manner of the first aspect, in a case where the current working condition requirement is an emergency large-current charging working condition, the target capacity region is the upper life reserve capacity, and the performing of the charging and discharging operation corresponding to the current working condition requirement by using the target capacity region includes:

[0015] performing a charging operation on a battery cell corresponding to the upper life reserve capacity.

[0016] In a possible implementation manner of the first aspect, in a case where the current working condition requirement is a safety emergency charging working condition, the target capacity region is the safety reserve capacity, and the performing of the charging and discharging operation corresponding to the current working condition requirement by using the target capacity region includes:

[0017] performing a charging operation on a battery cell corresponding to the safety reserve capacity.

[0018] In a possible implementation manner of the first aspect, in a case where the current working condition requirement is a normal discharging requirement, the target capacity region is the normal use capacity, and the performing of the charging and discharging operation corresponding to the current working condition requirement by using the target capacity region includes:

[0019] performing a discharging operation on a battery cell corresponding to the normal use capacity.

[0020] In a possible implementation manner of the first aspect, in a case where the current working condition requirement is a normal charging requirement, the target capacity region is the normal use capacity, and the performing of the charging and discharging operation corresponding to the current working condition requirement by using the target capacity region includes:

[0021] performing a discharging operation on a battery cell corresponding to the normal use capacity.

[0022] In a possible implementation manner of the first aspect, in a case where the current working condition requirement is an uncuttable output task working condition, the target capacity region is the lower life reserve capacity, and the performing of the charging and discharging operation corresponding to the current working condition requirement by using the target capacity region includes:

[0023] performing a discharging operation on a battery cell corresponding to the lower life reserve capacity.

[0024] In a possible implementation manner of the first aspect, 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:

[0025] In the charging and discharging process, the state of charge of each cell of the starting battery is monitored.

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

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

[0028] According to the number of charging and discharging cycles of each cell of the starting battery, the cell corresponding to each capacity region is determined.

[0029] In a possible implementation manner of the second aspect, the starting battery further includes:

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

[0031] A charging and discharging control module connected in a charging and discharging circuit of the starting battery, configured to acquire a current operating condition requirement of the starting battery, determine a target capacity region according to the current operating condition requirement, and control the target capacity region to perform a charging and discharging operation corresponding to the current operating condition requirement.

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

[0033] A circuit on-off control unit connected with the charging and discharging control module, configured to control the on-off of the charging and discharging circuit.

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

[0035] An equalization module connected with each cell, configured to perform SOC equalization on the cell in the charging and discharging process.

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

[0037] The indication module is configured to indicate the working state of the starting battery.

[0038] In a possible implementation manner of the third aspect, the charging and discharging control device of the starting battery includes:

[0039] A determination module configured to determine a target capacity region according to a current operating condition requirement.

[0040] The control module is configured to perform the charging and discharging operation corresponding to the current working condition requirement by using the target capacity region.

[0041] In a fourth aspect, an electronic device is provided, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the method of any one of the first aspect when executing the computer program.

[0042] In a fifth aspect, a vehicle is provided, which includes the starting battery of any one of the second aspect or the charging and discharging control device of the third aspect, or the electronic device of the fourth aspect.

[0043] In a sixth aspect, a computer readable storage medium is provided, which stores a computer program, and the computer program is executable on a processor to implement the method of any one of the first aspect.

[0044] In a seventh aspect, a chip system is provided, which includes a processor coupled with a memory, and the processor executes a computer program stored in the memory to implement the method of any one 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, a computer program product is provided, which, when executed on an electronic device, causes the electronic device to perform the method of any one of the first aspect.

[0046] It can be understood that the beneficial effects of the second aspect to the eighth aspect can be referred to the related description in the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0047] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0048] Figure 1 is a structure schematic diagram of a starting battery provided by an embodiment of the present application;

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

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

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

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

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

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

[0055] Figure 8 is an implementation flow schematic diagram of a charge-discharge control method of a starting battery provided by an embodiment of the present application;

[0056] Figure 9 is an implementation flow schematic diagram of another charge-discharge control method of a starting battery provided by an embodiment of the present application;

[0057] Figure 10 is a structure schematic diagram of a charge-discharge control device of a starting battery provided by an embodiment of the present application;

[0058] Figure 11 is a structure schematic diagram of an electronic device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0059] In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular sequences of steps, techniques, etc., in order to provide a thorough understanding of the present embodiments. However, it will be apparent to those skilled in the art that the present embodiments can be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known methods, devices, and circuits are omitted so as not to obscure the description of the present embodiments.

[0060] It should be understood that the term "comprises" when used in this specification and the appended claims, specifies the presence of stated features, integers, steps, operations, elements, and / or components, but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0061] It should also be understood that the term "and / or" when used in this specification and the appended claims, means any one of the associated listed items, or a combination of any combination of at least one of the associated listed items.

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

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

[0064] In the present application, the reference "one embodiment" or "some embodiments" and the like means that the specific features, structures or characteristics described in connection with the embodiment are included in one or more embodiments of the application. Therefore, the statements "in one embodiment", "in some embodiments", "in other some embodiments", "in further some embodiments" and the like appearing in different places in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized. The terms "include", "contain", "have" and their variants mean "include but not limited to", unless otherwise specifically emphasized.

[0065] The starter battery, also known as the starting battery, is a battery specially used to provide starting current for the engine of the vehicle. Its main function is to provide a large instantaneous current when the engine starts, so that the engine can run smoothly, thereby starting the vehicle. The starter battery is usually located in the engine compartment and is directly connected to the engine.

[0066] Specifically, the starter battery stores electrical energy through chemical reaction. When the battery is fully charged, it can store a large amount of electrical energy. When the engine needs to start, the battery quickly releases the stored electrical energy to provide a large enough current to make the engine run. After the engine starts, the starter battery will also be charged.

[0067] However, since the starter battery needs to release starting current or absorb energy during application, there may be overcharging and over-discharging of the battery, which can easily damage the starter battery and affect the service life of the starter battery.

[0068] Based on this, the application embodiment provides a charge and discharge control method of a starting battery, battery capacity of the starting battery is divided into multiple capacity regions, different capacity regions correspond to different working condition requirements, so that in the use process of the starting battery, the target capacity region corresponding to the working condition requirement can be used to perform the charge and discharge operation, thereby effectively reducing the overcharge and overdischarge of the starting battery and reducing the impact on the service life of the starting battery.

[0069] Firstly, the starting battery provided by the application embodiment is described in relation to the following drawings.

[0070] Please refer to Figure 1 , Figure 1 An internal circuit structure schematic diagram of a starting battery is shown, as Figure 1 indicated, the starting battery 10 can include a plurality of battery cells, the plurality of battery cells are connected in series, for example, as Figure 1 indicated, the battery cells C1 to CN, the starting battery 10 further includes a charge and discharge control module 11, wherein the charge and discharge control module 11 can be connected in series in the charge and discharge circuit of the starting battery 10, that is, can be connected to the internal circuit of the positive output port P+ and the negative output port P- of the starting battery 10, the charge and discharge control module 11 can obtain the current working condition requirement, determine the target capacity region according to the current working condition requirement, and control the target capacity region to perform the charge and discharge operation corresponding to the current working condition requirement.

[0071] As Figure 1 indicated, the starting battery 10 can further include a loop on-off control unit 12, wherein the loop on-off control unit 12 can include a charge loop control unit and a discharge loop control unit.

[0072] In specific applications, as Figure 2 indicated, the charge loop control unit can include a first MOS tube P1 and a MOS tube driving circuit 121a, and the discharge loop control unit can include a second MOS tube P2 and a MOS tube driving circuit 121a.

[0073] It can be understood that the charge loop control unit can control the on-off of the charge loop, and the discharge loop control unit can control the on-off of the discharge loop.

[0074] Wherein, the MOS tube driving circuit can be configured according to the model of the MOS tube and the type of the MOS tube, the first MOS tube and the second MOS tube can be selected according to actual application requirements, which is not limited in the application.

[0075] Figure 2The NMOS is taken as an example, and of course, the switch devices selected in the charging loop control unit and the discharging loop control unit can also be other types of switch devices to realize the on-off control of the charging and discharging loop, for example, a digital control switch or the like, and the embodiments of the present application are not limited to this.

[0076] It can be understood that the charging and discharging control module 11 can be 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 processor (DSP), a micro controller unit (MCU), a programmable logic device (PLD), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and other integrated units (neural-network processing unit, NPU) and graphics processing units (graphics processing unit, GPU), and can also include an application processor (application processor, AP), a modulation and demodulation processor, an image signal processor (digital signal processor, DSP), a baseband processor, and the like, and the specific implementation is not limited. The charging and discharging control module 11 can execute the charging and discharging control method provided by the embodiments of the present application to realize the charging and discharging control of the starting battery.

[0077] Please refer to Figure 3 , Figure 3 Another structure of the starting battery provided by the embodiments of the present application is shown, as shown in Figure 3 The starting battery provided by the embodiments of the present application can include a main charging unit 111 and a calculation control unit 112, wherein the main charging unit 111 controls the starting battery to charge based on the intermittent constant current charging mode, and the calculation control unit 112 is used to determine a target capacity region and control the target capacity region to perform the charging and discharging operation corresponding to the current working condition requirement.

[0078] For example, please refer to Figure 4 , Figure 4A battery capacity division result diagram of the starting battery is shown. As shown in Figure 4 The battery capacity of the starting battery can be divided into a regular use capacity, an upper life reserve capacity, a lower life reserve capacity, and a safety reserve capacity.

[0079] It should be noted that each capacity region can correspond to one or more working condition requirements, and the capacity region and the working condition requirement have a corresponding relationship (referred to as a first corresponding relationship).

[0080] In specific applications, the regular use capacity can be the battery capacity corresponding to the regular working condition of the battery, the upper life reserve capacity can be the capacity region used in the emergency large current charging working condition (in the case that the battery charging current is greater than a preset current threshold, for example, in the case that the starting battery needs to absorb a large amount of energy), the lower life reserve capacity can be the capacity region used in the non-cuttable output task working condition (i.e., when performing a non-cuttable output task), and the safety reserve capacity is the capacity region in the safety emergency working condition (when performing a safety required emergency task).

[0081] It can be understood that the non-cuttable output task refers to an output that cannot be interrupted, that is, the discharge process of the starting battery cannot be interrupted and needs to be continuously discharged. The safety emergency working condition refers to a task that needs to be discharged or charged in an emergency for the safety of vehicle driving, such as a safety emergency discharge working condition and a safety emergency charging working condition. The regular working condition can include a regular discharge working condition and a regular charging working condition.

[0082] In the embodiments of the present application, the use of the regular use capacity will not exacerbate the attenuation of the battery service life, the use of the upper life reserve capacity and the lower life reserve capacity can affect the battery service life, and the use of the safety reserve capacity will seriously affect the service life of the starting battery.

[0083] In specific applications, the calculation control unit 112 can determine the current working condition requirement of the starting battery according to the working condition parameters of the starting battery. The working condition parameters can include but are not limited to a charging current in a charging process, a discharge current in a discharge process, a charging and discharging time length, a battery power execution task type, and the like.

[0084] In specific applications, the execution task type includes but is not limited to an emergency discharge task, an emergency charging task, a regular charging task, a regular discharge task, a non-cuttable output task, and an overcurrent charging task.

[0085] In the embodiments of the present application, the different types of tasks performed can be determined based on the type of instruction issued by the vehicle controller. It can be understood that the vehicle controller can determine the task to be performed by the starting battery according to the operating condition of the vehicle, the operation instruction of the user, and the like, and then output the corresponding instruction to the charge-discharge control module 11 of the starting battery, so that the charge-discharge control module 11 controls the starting battery to perform the corresponding operation.

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

[0087] The vehicle controller can be a body control module (BCM). It can be understood that the body control module can also be referred to as a body computer, and in the field of automotive engineering, it also refers to an electronic control unit (ECU) for controlling the electrical system of the vehicle body. Common functions of the body control module include controlling power windows, power mirrors, air conditioning, headlights, turn signals, anti-theft locking systems, central locking, defrosting devices, etc. The body control module can be connected to other vehicle ECUs through a bus.

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

[0089] In a specific application, the charge-discharge control module can determine whether the current working condition is an emergency large-current charging condition according to the size of the charging current, or whether the current working condition is an uncuttable output task condition according to the size of the discharging current and the discharging time.

[0090] In some embodiments, the charge-discharge control module 11 described above can comprehensively determine the current working condition requirement of the starting battery according to the charge-discharge current during the charging and discharging process and the type of the execution task.

[0091] For example, assuming that the charge-discharge control module 11 determines that the type of the current execution task is an emergency charging task, and the charging current exceeds a preset current threshold, it can be determined that the current working condition requirement is an emergency large-current charging condition, and according to the corresponding relationship between the working condition requirement and the capacity region (i.e., the first corresponding relationship), it can be determined that the target capacity region is the upper life reserve capacity.

[0092] For another example, assuming that the charge and discharge control module 11 determines that the current execution task type is the non-cuttable output task and the current state is the discharging state, it can be determined that the current working condition requirement of the starting battery is the non-cuttable output task working condition, and according to the first correspondence relationship between the working condition requirement and the capacity region, the target capacity region can be determined as the lower life reserve capacity.

[0093] It can be understood that the above capacity region division of the battery capacity is only an example, and the number of the capacity regions of the battery capacity can be determined according to various working condition requirements existing in the actual application process. Figure 3 Only one possible implementation is shown, and in the actual application process, the capacity regions of the battery capacity can also be divided according to the working condition requirements, for example, can also be divided into a regular charging capacity, a regular discharging capacity, an upper life reserve capacity, a lower life reserve capacity, and a safety reserve capacity, and the like.

[0094] It can also be understood that when the starting battery corresponds to different working condition requirements, the corresponding charge and discharge operation is performed on the corresponding capacity region, so that the battery state can be maintained, that is, the power of other capacity regions will not be affected, thereby reducing the overcharging and overdischarging of the starting battery.

[0095] For another example, referring to Figure 5 , Figure 5 The division result schematic diagram provided by another embodiment of the application is given, as shown in Figure 5 The battery capacity of the starting battery provided by the embodiment of the application is divided into a regular use capacity, an upper life reserve capacity, a lower life reserve capacity, a standby charge capacity, and a safety reserve capacity.

[0096] The standby charge capacity is a capacity region corresponding to the non-cuttable output working condition (that is, performing the non-cuttable output task) or the emergency starting working condition.

[0097] In the embodiment of the application, the range of the above-mentioned standby charge capacity can be determined based on the selection of the user, that is, the user can select the region range of the standby charge capacity, and the use of the capacity region will not accelerate the attenuation of the service life of the starting battery.

[0098] In a specific application, in the case where the current working condition requirement is the above-mentioned non-cuttable output working condition, the charge and discharge control module 11 can use the above-mentioned standby charge capacity for charge and discharge operation.

[0099] As can be seen from the above, the starting battery provided by the embodiment of the application divides the battery capacity into multiple capacity regions to cope with different working condition requirements, can maintain the battery state under different working condition requirements, thereby reducing the occurrence of overcharging and overdischarging of the battery, and prolonging the service life of the battery.

[0100] For another example, referring toFigure 6 , Figure 6 A structure diagram of a starting battery is shown. As shown in Figure 5 , the starting battery can further include a temperature control module 13.

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

[0102] In a specific application, during the application of the starting battery, if the temperature of the battery changes greatly or the temperature of the battery is too high, the starting battery can be damaged, and if the temperature of the battery is too low, the efficiency of the battery can be affected. Therefore, during the charging and discharging process of the battery, the temperature of the battery needs to be controlled within a certain range.

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

[0104] It should be noted that the temperature range of the battery can be set according to the actual application requirements, and the embodiments of the present application do not make specific limitations thereon, for example, the temperature range of the battery can also be set to between 10°C and 60°C, or between 15°C and 65°C.

[0105] In an embodiment of the present application, the temperature control module 13 can dynamically adjust the temperature of the battery to make the temperature of the battery within the above-mentioned temperature range.

[0106] In the present application, in addition to the starting battery can be used according to the current working condition requirements to adopt the corresponding capacity area to carry out the charging and discharging operation, the temperature of the starting battery can also be controlled, so that the starting battery can carry out the charging and discharging in the appropriate temperature range, to improve the operation safety and efficiency of the battery.

[0107] Please refer to Figure 7 , Figure 7 A structure diagram of a starting battery is shown. As shown in Figure 7 , the starting battery can further include an equalization module 14.

[0108] In an embodiment of the present application, the equalization module 14 is configured to realize the SOC equalization between the plurality of battery cells in the starting battery.

[0109] In an embodiment of the present application, the equalization module 14 can adopt a passive equalization mode for equalization.

[0110] Please refer to Figure 7 , as Figure 7 shown, the starting battery provided by the embodiments of the present application can further include an indication module 15.

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

[0112] In a specific application, the indication module 15 can include an LED state indication lamp.

[0113] For example, when the starting battery is in a normal working state, the LED state indication lamp can be controlled to flash at a preset time interval, for example, the lamp can flash at an interval of 1s, that is, the lamp is on for 1s and off for 1s, and the color of the LED indication lamp can be green.

[0114] For example, for an abnormal discharge state, the LED state indication lamp can be controlled to be low-brightness constant.

[0115] For example, for a long-term storage state, that is, a non-use state, the LED state indication lamp can be controlled to be off.

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

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

[0118] The starting battery provided by the embodiments of the present application is introduced above, and the charge and discharge control method of the starting battery provided by the embodiments of the present application is described below in combination with the drawings.

[0119] Please refer to FIG. 8, Figure 8 FIG. 8 shows an implementation process of a charge and discharge control method of a starting battery according to an embodiment of the present application. It can be understood that the execution subject of the above-mentioned charge and discharge control method can be a charge and discharge control module in the starting battery, wherein the capacity of the starting battery is divided into multiple capacity regions, and different capacity regions correspond to different working condition requirements (specifically, a charge and discharge control chip). Figure 8 As shown in FIG. 8, the charge and discharge control method of the starting battery can include the following steps:

[0120] In S81, a target capacity region is determined according to the current working condition requirement.

[0121] The current working condition requirement refers to a working condition requirement of the starting battery at present, i.e., a charge-discharge task required to be performed by the starting battery at present.

[0122] In the embodiment of the application, the charge-discharge control module can acquire the working condition parameter of the starting battery, and determine the current working condition requirement according to the working condition parameter of the starting battery.

[0123] In specific applications, the working condition parameter can include but is not limited to a charging current in a charging process, a discharging current in a discharging process, a charge-discharge duration, a battery power performing task type, etc.

[0124] In specific applications, the performing task type includes but is not limited to an emergency discharging task, an emergency charging task, a regular charging task, a regular discharging task, an uncuttable output task, and an overcurrent charging task.

[0125] In the embodiment of the application, different types of performing tasks can be determined based on a type of instruction issued by the vehicle controller. It can be understood that the vehicle controller can determine a task required to be performed by the starting battery according to information such as a running state of the vehicle, an operation instruction of a user, etc., and then output a corresponding instruction to the charge-discharge control module of the starting battery, so that the charge-discharge control module controls the starting battery to perform a corresponding operation.

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

[0127] Acquiring a working condition parameter of the starting battery;

[0128] Determining a current working condition requirement according to the working condition parameter of the starting battery;

[0129] According to a first correspondence relationship between the working condition requirement and the capacity region, determining a target capacity region corresponding to the current working condition requirement.

[0130] In an embodiment of the application, the charge-discharge control module 11 of the starting battery can acquire a charge-discharge current in a charge-discharge process, and then determine a current working condition requirement of the starting battery according to the charge-discharge current.

[0131] In specific applications, the charge-discharge control module can determine whether the current is an emergency large-current charging working condition according to a size of the charging current, and can also determine whether the current is an uncuttable output task working condition according to a size of the discharging current and a discharging duration.

[0132] In some embodiments, the charge-discharge control module 11 can comprehensively determine the current working condition requirement of the starting battery according to the charge-discharge current in the charge-discharge process and the performing task type, etc.

[0133] For example, assuming that the charge-discharge control module 11 determines that the current execution task type is an emergency charging task and the charging current exceeds the preset current threshold, it can be determined that the current working condition requirement is an emergency large-current charging working condition. According to the correspondence relationship between the working condition requirement and the capacity region (i.e., the first correspondence relationship), the target capacity region can be determined as the upper life reserve capacity.

[0134] For another example, assuming that the charge-discharge control module 11 determines that the current execution task type is an uncuttable output task and at this time it is a discharging condition, it can be determined that the current working condition requirement of the starting battery is an uncuttable output task working condition. According to the first correspondence relationship between the working condition requirement and the capacity region, the target capacity region can be determined as the lower life reserve capacity.

[0135] It can be understood that when the battery capacity of the starting battery is divided, the battery capacity can be divided according to the working condition requirement, and therefore, there is a first correspondence relationship between the capacity region and the working condition requirement, that is, after the current working condition requirement is determined, the target capacity region corresponding to the current working condition requirement can be determined according to the first correspondence relationship.

[0136] In S82, the charge-discharge operation corresponding to the current working condition requirement is performed using the target capacity region.

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

[0138] In an embodiment of the present application, in the case where the current working condition requirement is an emergency large-current charging working condition, the target capacity region can be determined as the upper life reserve capacity. After it is determined that the target capacity region is the upper life reserve capacity, the charge-discharge operation corresponding to the current working condition requirement can be specifically: using the upper life reserve capacity to absorb external electric energy, that is, using the upper life reserve capacity to perform a large-current charging operation.

[0139] It should be noted that the above-mentioned large-current charging operation can be a charging operation based on the maximum allowable current. The maximum allowable current of the starting battery can be determined according to the type and specifications of the starting battery, which is not limited in the present application.

[0140] In an embodiment of the present application, in the case where the current working condition requirement is a regular discharging requirement, the target capacity region can be determined as the regular use capacity. After it is determined that the target capacity region is the regular use capacity and the current working condition requirement is a regular discharging requirement, the above-mentioned charge-discharge operation can be specifically: using the regular use capacity to perform a discharging operation.

[0141] In an embodiment of the present application, when the current working condition requirement is a regular charging requirement, the target capacity region can be determined as a regular use capacity. When it is determined that the target capacity region is a regular use capacity and the current working condition requirement is a regular charging requirement, the above charging and discharging operation can be specifically a charging operation using the regular use capacity.

[0142] In an embodiment of the present application, when the current working condition requirement is an uncuttable output task working condition, the target capacity region can be determined as a lower life reserve capacity. When it is determined that the target capacity region is a regular use capacity and the current working condition requirement is an uncuttable output task working condition, the above charging and discharging operation can be specifically an uncut discharging operation using the lower life reserve capacity.

[0143] In an embodiment of the present application, when the current working condition requirement is a safety emergency charging working condition, the target capacity region can be determined as a safety reserve capacity. When it is determined that the target capacity region is a safety reserve capacity and the current working condition requirement is a safety emergency charging working condition, the above charging and discharging operation can be specifically a charging operation using the safety reserve capacity.

[0144] In an embodiment of the present application, when the current working condition requirement is an uncuttable output working condition, the target capacity region can be determined as a standby charge capacity. When it is determined that the target capacity region is a standby charge capacity and the current working condition requirement is an uncuttable output working condition, the above charging and discharging operation can be specifically a discharging operation using the standby charge capacity.

[0145] In an embodiment of the present application, when the current working condition requirement is an emergency starting working condition, the target capacity region can be determined as a standby charge capacity. When it is determined that the target capacity region is a standby charge capacity and the current working condition requirement is an emergency starting working condition, the above charging and discharging operation can be specifically a large-current discharging operation using the standby charge capacity to realize starting operation.

[0146] It should be noted that, in the embodiments of the present application, the charging operation refers to an operation of absorbing external energy to the starting battery, i.e., charging of the starting battery, and the discharging operation refers to an operation of releasing energy in the starting battery to the outside, i.e., discharging of the starting battery.

[0147] In an embodiment of the present application, different capacity regions can correspond to different cells of the starting battery, i.e., each capacity region has a corresponding cell. The above charging and discharging operation using the target capacity region can be specifically a charging and discharging operation using the cell corresponding to the target capacity region.

[0148] For example, assuming that the above charging and discharging operation is a large-current discharging operation using the spare charge capacity, the specific operation can be discharging the battery cells corresponding to the spare charge capacity according to the required discharging current.

[0149] For example, assuming that the above charging and discharging operation is a charging operation using the safety reserve capacity, the specific operation can be charging the battery cells corresponding to the safety reserve capacity.

[0150] For example, assuming that the above charging and discharging operation is a non-cutting discharging operation using the lower life reserve capacity, the specific operation can be discharging the battery cells corresponding to the lower life reserve capacity.

[0151] As can be seen from the above, the charging and discharging control method of the starting battery provided by the embodiments of the present application uses the battery capacity region corresponding to the working condition requirement to perform the charging and discharging operation, can realize the battery state keeping based on different working condition requirements, can reduce the occurrence of overcharging and overdischarging of the battery, and prolong the service life of the battery.

[0152] Please refer to Figure 9 , Figure 9 An implementation flow diagram of another charging and discharging control method of a starting battery provided by the embodiments of the present application is shown. As Figure 9 shown, in the embodiments of the present application, the above charging and discharging control method includes the following steps:

[0153] In S91, a target capacity region is determined according to the current working condition requirement.

[0154] In S92, a charging and discharging operation corresponding to the current working condition requirement is performed using the target capacity region.

[0155] The related content of S91 to S92 can be referred to the related description of S81 to S82, which will not be repeated here.

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

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

[0158] It should be noted that the battery cell, i.e., the battery monomer, is a basic unit device for directly converting chemical energy into electrical energy, and usually includes electrodes, separators, electrolytes, housings, and terminals.

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

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

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

[0162] In the embodiment of the application, the state of charge of the cell meeting the equalization condition can be that the difference between the maximum state of charge and the minimum state of charge exceeds the preset difference threshold. It can be understood that the purpose of battery equalization is to balance the remaining capacity of each cell as much as possible, so when the difference between the maximum state of charge and the minimum state of charge exceeds the preset difference threshold, it can be considered that the battery equalization operation is needed to reduce the difference between the remaining capacities of each cell.

[0163] It can be understood that in the embodiment of the application, different battery capacity ranges can correspond to different cells used to perform the charging and discharging operation, so when the equalization operation is performed, the equalization operation can be performed on the used cells.

[0164] As can be seen from the above, by performing the equalization operation on the cells in the charging and discharging process, the service life of the battery can be effectively improved.

[0165] In an embodiment of the application, in order to balance the use times of each cell, when the charging and discharging operation is performed, the cells corresponding to each capacity region can also be dynamically adjusted.

[0166] In a specific application, after the starting battery is started, the charging and discharging control module can obtain the charging and discharging cycle times of each cell in the starting battery, and then determine the cells corresponding to each capacity region according to the charging and discharging cycle times of each cell.

[0167] In the embodiment of the application, the charging and discharging cycle times of the above-mentioned cells can be the charging and discharging cycle times used in the historical use period of the cells, or can be the remaining available charging and discharging cycle times.

[0168] In the embodiment of the application, when the charging and discharging cycle times of the above-mentioned cells are the charging and discharging cycle times used in the historical use period of the cells, when the cells corresponding to each capacity region are determined, the cells with more charging and discharging cycle times can be set as the cells corresponding to the safety reserved capacity, the cells with less charging and discharging cycle times can be set as the cells corresponding to the regular use capacity, and the like.

[0169] That is, in the embodiment of the application, before the target capacity region is determined according to the current working condition requirement, the cells corresponding to each target capacity region can also be dynamically adjusted according to the charging and discharging cycle times of each cell in the starting battery.

[0170] The embodiment of the present application further provides a charging and discharging control device, which can be arranged in the starting battery, can correspond to the charging and discharging control module 11 in the embodiment of the starting battery, and please refer to Figure 10 , Figure 10 The charging and discharging control device provided by the embodiment of the present application can include a determination module 101 and a control module 102.

[0171] The determination module 101 is configured to determine a target capacity region according to a current working condition requirement.

[0172] The control module 102 is configured to perform a charging and discharging operation corresponding to the current working condition requirement by using the target capacity region.

[0173] In some implementations, the determination module 101 can be specifically configured to acquire a working condition parameter of the starting battery, determine the current working condition requirement according to the working condition parameter of the starting battery, and determine a target capacity region corresponding to the current working condition requirement according to a first correspondence relationship between working condition requirements and capacity regions.

[0174] In some implementations, the charging and discharging control device can further include a balancing module, which is configured to monitor a state of charge of each cell of the starting battery during a charging and discharging process, and perform a battery balancing operation when the state of charge of the cell meets a balancing condition.

[0175] In some implementations, the charging and discharging control device can further include a region adjustment module, which is configured to determine a cell corresponding to each capacity region according to a number of charging and discharging cycles of each cell of the starting battery.

[0176] In some implementations, when the current working condition requirement is an emergency large-current charging working condition, the target capacity region is an upper life reserve capacity, and the control module 102 is specifically configured to perform a charging operation by using a cell corresponding to the upper life reserve capacity.

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

[0178] In some implementations, when the current working condition requirement is a conventional discharging requirement, the target capacity region is a conventional use capacity, and the control module 102 is specifically configured to perform a discharging operation by using a cell corresponding to the conventional use capacity.

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

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

[0181] It should be understood that, Figure 10 In the structural block diagram of the charge-discharge control device shown, each module is configured to perform Figure 8 to 9 the steps in the corresponding embodiments, and for Figure 1 to 4 the steps in the corresponding embodiments have been explained in detail in the above embodiments, please refer to Figure 1 to 4 and Figure 1 to 4 the related descriptions in the corresponding embodiments, which will not be repeated here.

[0182] As can be seen from the above, the charge-discharge control device provided by the embodiments of the present application can also use the target capacity region corresponding to the operating condition requirement to perform charge-discharge operation in the use process of the starting battery, thereby effectively reducing the overcharging and overdischarging of the starting battery and reducing the impact on the service life of the starting battery.

[0183] The embodiments of the present application also provide a vehicle, which can include the starting battery described in any of the above embodiments.

[0184] The embodiments of the present application also provide an electronic device, Figure 11 is a structural block diagram of an electronic device according to another embodiment of the present application. As Figure 11 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 of the evaluation report generation method. The processor 1101 implements the steps in each of the embodiments of the above various charge-discharge control methods when executing the computer program 1103, such as Figure 8 shown as S81-S82. Alternatively, the processor 1101 implements the functions of each module in the corresponding embodiments when executing the computer program 1103, such as Figure 1 the functions of the units 101-102 shown, please refer to Figure 10 the related descriptions in the corresponding embodiments. Figure 10

[0185] ​For example, the computer program 1103 can 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 can be a series of computer program instruction segments capable of completing a specific function, which are used to describe the execution process of the computer program 1103 in the electronic device 1100. For example, the computer program 1103 can be divided into various unit modules, and the specific functions of the modules are as described above.

[0186] The electronic device 1100 can include, but is not limited to, a processor 1101 and a memory 1102. Those skilled in the art can understand that the electronic device 1100 can include more or fewer components than those shown in the figure, or combine certain components, or include different components, for example, the electronic device can also include an input / output device, a network access device, a bus, etc. Figure 11 The electronic device 1100 is only an example and does not constitute a limitation on the electronic device 1100, and can include more or fewer components than those shown in the figure, or combine certain components, or different components, for example, the electronic device can also include an input / output device, a network access device, a bus, etc.

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

[0188] The embodiment of the present application also provides a computer readable storage medium, the computer readable storage medium stores a computer program, and the computer program is executed by a processor to implement the steps in each of the above method embodiments.

[0189] The embodiment of the present application provides a computer program product, when the computer program product runs on an electronic device, so that the electronic device executes the steps in each of the above method embodiments.

[0190] The embodiment of the present application provides a chip system, which can include a processor, the processor is coupled with a memory, and the processor executes a computer program stored in the memory to implement the steps in each of the above method embodiments.

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

[0192] The integrated unit, if implemented in the form of a software function unit and sold or used as an independent product, can be stored in a computer readable storage medium. Based on such understanding, the present application can implement all or part of the processes in the above-mentioned embodiment methods through a computer program to instruct relevant hardware to complete, and the computer program can be stored in a computer readable storage medium. When the computer program is executed by a processor, the steps of each method embodiment described above can be implemented. The computer program includes computer program code, which can be in the form of source code, object code, executable files or some intermediate forms. The computer readable medium at least includes any entity or device capable of carrying the computer program code to the device / equipment, recording medium, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal and software distribution medium. For example, U disk, mobile hard disk, magnetic disk or optical disk, etc. In some jurisdictions, according to legislation and patent practice, the computer readable medium can not be an electrical carrier signal and a telecommunication signal.

[0193] In the above embodiments, the description of each embodiment has its own focus, and the parts not described or recorded in detail in a certain embodiment can be referred to the relevant description of other embodiments.

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

[0195] In the embodiments provided by the present application, it should be understood that the disclosed apparatus / network device and method can be implemented in other ways. For example, the above-described apparatus / network device embodiments are merely schematic, for example, the division of the modules or units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the displayed or discussed each other can be indirect coupling or communication connection through some interfaces, devices or units, and can be electrical, mechanical or other forms.

[0196] The units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may also be distributed to multiple network units. Part or all of the units can be selected to achieve the purpose of the embodiment scheme according to actual needs.

[0197] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A method for controlling the charging and discharging of a starting battery, characterized in that, The capacity of the starting battery is divided into multiple capacity regions, with different capacity regions corresponding to different operating conditions. The capacity regions of the starting battery include normal use capacity, upper life reserve capacity, lower life reserve capacity, and safety reserve capacity. The charging and discharging control method for the starting battery includes: Determine the target capacity area based on current operating conditions and requirements; The target capacity region is used to perform the charge and discharge operation corresponding to the current operating condition requirement; wherein, the starting battery includes multiple cells, different capacity regions correspond to different cells of the starting battery, and the use of the target capacity region to perform the charge and discharge operation corresponding to the current operating condition requirement includes using the cells corresponding to the target capacity region to perform charge and discharge operations. Wherein, when the current operating condition requires emergency high-current charging, the target capacity area is the upper lifespan reserved capacity, and the charging and discharging operation corresponding to the current operating condition requirement is performed using the target capacity area, the charging operation is performed using the battery cell corresponding to the upper lifespan reserved capacity. When the current operating condition requirement is a safe emergency charging condition, the target capacity area is a safe reserve capacity. The step of 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 safe reserve capacity to perform a charging operation. When the current operating condition requirement is a normal discharge requirement, the target capacity area is the normal usage capacity. The step of using the target capacity area to perform the charge and discharge operation corresponding to the current operating condition requirement includes: performing a discharge operation using the battery cell corresponding to the normal usage capacity. When the current operating condition demand is a normal charging demand, the target capacity area is the normal usage capacity. The charging and discharging operation corresponding to the current operating condition demand is performed using the target capacity area, which includes: performing a discharging operation using the battery cell corresponding to the normal usage capacity. When the current operating condition requires an output task that cannot be interrupted, the target capacity area is the next lifetime reserve capacity. The process of using the target capacity area to perform the charge and discharge operation corresponding to the current operating condition requirement includes: performing a discharge operation using the cell corresponding to the next lifetime reserve capacity.

2. The charging and discharging control method for a starting battery according to claim 1, characterized in that, The determination of the target capacity area based on current operating conditions includes: Obtain the operating parameters of the starting battery; The current operating condition requirements are determined based on the operating parameters of the starting battery; Based on the first correspondence between operating condition demand and capacity area, determine the target capacity area corresponding to the current operating condition demand.

3. The charging and discharging control method for a starting battery according to claim 1 or 2, characterized in that, After performing the charge / discharge operation corresponding to the current operating condition requirement using the target capacity region, the method further includes: During charging and discharging, the state of charge of each cell in the starting battery is monitored; When the state of charge of the battery cell meets the balancing conditions, a battery balancing operation is performed.

4. A starting battery, characterized in that, The starting battery capacity is divided into multiple capacity zones, with different capacity zones corresponding to different operating conditions. The starting battery capacity zones include normal use capacity, upper life reserve capacity, lower life reserve capacity, and safety reserve capacity. The starting battery includes multiple cells, with different capacity regions corresponding to different cells in the starting battery. The starting battery includes: There are N battery cells, where N is a positive integer greater than 1; A charge / discharge control module is connected in the charge / discharge circuit of the starting battery. It is used to obtain the current operating condition requirements of the starting battery, determine the target capacity area based on the current operating condition requirements, and control the target capacity area to perform the charge / discharge operation corresponding to the current operating condition requirements. Controlling the target capacity region to perform charging and discharging operations corresponding to the current operating conditions includes using the battery cells corresponding to the target capacity region to perform charging and discharging operations. Wherein, when the current operating condition requires emergency high-current charging, the target capacity area is the upper lifespan reserved capacity, and the charging and discharging operation corresponding to the current operating condition requirement is performed using the target capacity area, the charging operation is performed using the battery cell corresponding to the upper lifespan reserved capacity. When the current operating condition requirement is a safe emergency charging condition, the target capacity area is a safe reserve capacity. The step of 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 safe reserve capacity to perform a charging operation. When the current operating condition requirement is a normal discharge requirement, the target capacity area is the normal usage capacity. The step of using the target capacity area to perform the charge and discharge operation corresponding to the current operating condition requirement includes: performing a discharge operation using the battery cell corresponding to the normal usage capacity. When the current operating condition demand is a normal charging demand, the target capacity area is the normal usage capacity. The charging and discharging operation corresponding to the current operating condition demand is performed using the target capacity area, which includes: performing a discharging operation using the battery cell corresponding to the normal usage capacity. When the current operating condition requires an output task that cannot be interrupted, the target capacity area is the next lifetime reserve capacity. The process of using the target capacity area to perform the charge and discharge operation corresponding to the current operating condition requirement includes: performing a discharge operation using the cell corresponding to the next lifetime reserve capacity.

5. The starting battery according to claim 4, 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 state of the charge / discharge circuit.

6. The starting battery according to claim 4 or 5, characterized in that, The starting battery also includes: The equalization module is connected to each battery cell and is used to perform SOC equalization on the battery cells during the charging and discharging process.

7. The starting battery according to claim 6, characterized in that, The starting battery also includes an indicator module; The indicator module is used to indicate the operating status of the starting battery.

8. A vehicle, characterized in that, The vehicle includes a starting battery as described in any one of claims 4 to 7.

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