CN112886687A - Battery charging method, device, system, charger, medium and product - Google Patents
Battery charging method, device, system, charger, medium and product Download PDFInfo
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- CN112886687A CN112886687A CN202110381768.8A CN202110381768A CN112886687A CN 112886687 A CN112886687 A CN 112886687A CN 202110381768 A CN202110381768 A CN 202110381768A CN 112886687 A CN112886687 A CN 112886687A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00034—Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
- B60L53/62—Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00045—Authentication, i.e. circuits for checking compatibility between one component, e.g. a battery or a battery charger, and another component, e.g. a power source
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
Abstract
The embodiment of the invention provides a battery charging method, a device, a system, a charger, a medium and a product, wherein the battery charging method comprises the following steps: acquiring the maximum charging parameter of the target battery, and sending the maximum charging parameter to the charger, so that the charger determines the minimum parameter of the maximum charging parameter and the maximum output parameter of the charger as a corresponding safe charging parameter when the charger charges the target battery; receiving the safe charging parameters sent by the charger, and acquiring the minimum charging parameters of the target battery, which meet the charging requirements; determining a final charging parameter according to the safe charging parameter and the minimum charging parameter; and sending the final charging parameters to the charger so that the charger charges the target battery according to the final charging parameters. The battery charging method provided by the embodiment of the invention improves the accuracy of determining the matching degree between the charger and the target battery.
Description
Technical Field
The embodiment of the invention relates to the technical field of new energy vehicles, in particular to a battery charging method, device, system, charger, medium and product.
Background
With the continuous development of science and technology and the increasing emphasis on environmental protection, the energy sources of many vehicles are gradually changed from traditional petroleum to various new energy sources. The current new energy source which is relatively mature in application is mainly electric energy, and a vehicle using the electric energy is charged by a charger before starting, and is discharged by a storage battery in the running process of the vehicle to provide a power source.
Therefore, in daily use, vehicles using electric energy, particularly two-wheeled vehicles and three-wheeled vehicles, are required to frequently undergo a process of charging and discharging a battery in the vehicle. Meanwhile, because the types of chargers are more, the types of batteries are also more, and in the actual use process, a large number of chargers which are not matched with the batteries charge the batteries. Such mismatch easily causes the output voltage of the charger to be higher than the withstand capability of the battery during charging, thereby causing instability inside the battery and even causing an explosion problem, resulting in low safety of the battery during charging. Or the charger cannot meet the charging requirements for the battery. Therefore, there is a problem that it is impossible to accurately determine whether there is a match between the current charger and the battery.
Disclosure of Invention
The invention provides a battery charging method, a device, a system, a charger, a medium and a product, which are used for solving the problem that whether the current charger and the battery are matched or not can not be accurately determined.
A first aspect of an embodiment of the present invention provides a battery charging method, where the method is applied to a battery management system of a target battery, and the method includes:
the method comprises the steps of obtaining the maximum charging parameter of a target battery, and sending the maximum charging parameter to a charger, so that the charger determines the minimum parameter of the maximum charging parameter and the maximum output parameter of the charger as a corresponding safe charging parameter when the charger charges the target battery;
receiving the safe charging parameters sent by the charger, and acquiring the minimum charging parameters of the target battery, which meet the charging requirements; determining a final charging parameter according to the safe charging parameter and the minimum charging parameter;
and sending the final charging parameters to the charger so that the charger charges the target battery according to the final charging parameters.
Further, the method as described above, the maximum charging parameter includes a maximum charging voltage and a maximum charging current; the maximum output parameters comprise a maximum output voltage and a maximum output current; the safe charging parameters comprise safe output voltage and safe output current; the minimum charge parameter comprises a discharge cutoff voltage;
the determining a final charging parameter according to the safe charging parameter and the minimum charging parameter includes:
comparing the safe output voltage and the discharge cutoff voltage;
determining a final charging parameter according to the comparison result;
the determining the final charging parameter according to the comparison result includes:
if the safe output voltage is greater than or equal to the discharge cutoff voltage, determining the safe output voltage and the corresponding safe output current as final charging parameters;
and if the safe output voltage is less than the discharge cut-off voltage, determining a zero value as a final charging parameter.
Further, the method as described above, after sending the final charging parameter to the charger, further comprising:
monitoring actual charging parameters output by the charger during charging;
calculating a first difference between the actual charging parameter and the final charging parameter;
if the first difference value is within a preset warning threshold value range, sending a charging parameter changing instruction to the charger so that the charger changes the actual charging parameter according to the charging parameter changing instruction; wherein the modified actual charging parameter is less than or equal to the final charging parameter;
calculating a second difference between the modified actual charging parameter and the final charging parameter;
if the second difference values are within the preset warning threshold value range within the preset time, sending a charging stop instruction to the charger so that the charger stops charging the target battery;
if the first difference value is within a preset warning threshold range, the method further comprises:
and outputting the warning information to warning equipment.
A second aspect of the embodiments of the present invention provides a battery charging method, where the method is applied to a charger, and the method includes:
receiving a maximum charging parameter of a target battery sent by a battery management system corresponding to the target battery, and determining a minimum parameter of the maximum charging parameter and a maximum output parameter output during charging as a corresponding safe charging parameter during charging of the target battery;
sending the safe charging parameters to the battery management system so that the battery management system determines final charging parameters according to the safe charging parameters and the minimum charging parameters of the target battery, which meet the charging requirements;
and receiving the final charging parameters sent by the battery management system, and charging the target battery according to the final charging parameters.
A third aspect of embodiments of the present invention provides a battery charging apparatus, where the apparatus is located in a battery management system of a target battery, and the apparatus includes:
the acquisition module is used for acquiring the maximum charging parameter of the target battery and sending the maximum charging parameter to the charger so that the charger determines the minimum parameter between the maximum charging parameter and the maximum output parameter of the charger as the corresponding safe charging parameter when the charger charges the target battery;
the final charging parameter determining module is used for receiving the safe charging parameters sent by the charger and acquiring the minimum charging parameters of the target battery, which meet the charging requirements; determining a final charging parameter according to the safe charging parameter and the minimum charging parameter;
and the final charging parameter sending module is used for sending the final charging parameters to the charger so that the charger charges the target battery according to the final charging parameters.
Further, the apparatus as described above, the maximum charging parameter comprises a maximum charging voltage and a maximum charging current; the maximum output parameters comprise a maximum output voltage and a maximum output current; the safe charging parameters comprise safe output voltage and safe output current; the minimum charge parameter comprises a discharge cutoff voltage;
the final charging parameter determining module, when determining the final charging parameter according to the safe charging parameter and the minimum charging parameter, is specifically configured to:
comparing the safe output voltage and the discharge cutoff voltage; determining a final charging parameter according to the comparison result;
the final charging parameter determining module is specifically configured to, when determining the final charging parameter according to the comparison result:
if the safe output voltage is greater than or equal to the discharge cutoff voltage, determining the safe output voltage and the corresponding safe output current as final charging parameters; and if the safe output voltage is less than the discharge cut-off voltage, determining a zero value as a final charging parameter.
Further, the apparatus as described above, further comprising:
the monitoring module is used for monitoring the actual charging parameters output by the charger during charging; calculating a first difference between the actual charging parameter and the final charging parameter; if the first difference value is within a preset warning threshold value range, sending a charging parameter changing instruction to the charger so that the charger changes the actual charging parameter according to the charging parameter changing instruction; wherein the modified actual charging parameter is less than or equal to the final charging parameter; calculating a second difference between the modified actual charging parameter and the final charging parameter; if the second difference values are within the preset warning threshold value range within the preset time, sending a charging stop instruction to the charger so that the charger stops charging the target battery;
and the warning module is used for outputting warning information to warning equipment if the first difference value is within a preset warning threshold range.
A fourth aspect of embodiments of the present invention provides a battery charging apparatus, the apparatus being located in a charger, the apparatus comprising:
the safe charging parameter determining module is used for receiving the maximum charging parameter of the target battery sent by the battery management system corresponding to the target battery and determining the minimum parameter between the maximum charging parameter and the maximum output parameter output during charging as the corresponding safe charging parameter during charging the target battery;
the safe charging parameter sending module is used for sending the safe charging parameters to the battery management system so that the battery management system determines final charging parameters according to the safe charging parameters and the minimum charging parameters of the target battery, which meet the charging requirements;
and the charging module is used for receiving the final charging parameters sent by the battery management system and charging the target battery according to the final charging parameters.
A fifth aspect of an embodiment of the present invention provides a battery management system, including: a memory, a processor;
a memory; a memory for storing the processor-executable instructions;
wherein the processor is configured to perform the battery charging method of any one of the first aspect by the processor.
A sixth aspect of an embodiment of the present invention provides a charger, including: a memory, a processor;
a memory; a memory for storing the processor-executable instructions;
wherein the processor is configured to perform the battery charging method of the second aspect by the processor.
A seventh aspect of the embodiments of the present invention provides a computer-readable storage medium, in which computer-executable instructions are stored, and when the computer-executable instructions are executed by a processor, the computer-readable storage medium is configured to implement the battery charging method according to any one of the first aspect or the battery charging method according to the second aspect.
An eighth aspect of embodiments of the present invention provides a computer program product, which includes a computer program that, when executed by a processor, implements the battery charging method according to any one of the first aspect or the battery charging method according to the second aspect.
The embodiment of the invention provides a battery charging method, a device, a system, a charger, a medium and a product, wherein the battery charging method comprises the following steps: the method comprises the steps of obtaining the maximum charging parameter of a target battery, and sending the maximum charging parameter to a charger, so that the charger determines the minimum parameter of the maximum charging parameter and the maximum output parameter of the charger as a corresponding safe charging parameter when the charger charges the target battery; receiving the safe charging parameters sent by the charger, and acquiring the minimum charging parameters of the target battery, which meet the charging requirements; determining a final charging parameter according to the safe charging parameter and the minimum charging parameter; and sending the final charging parameters to the charger so that the charger charges the target battery according to the final charging parameters. According to the battery charging method provided by the embodiment of the invention, the maximum charging parameter of the target battery is firstly obtained, and the maximum charging parameter is sent to the charger. In order to ensure the safety during charging, the charger determines the minimum parameter of the maximum charging parameter and the maximum output parameter as the corresponding safe charging parameter when the charger charges the target battery. Meanwhile, in order to determine whether the safe charging parameters meet the charging requirements of the target battery, final charging parameters are determined according to the safe charging parameters and the minimum charging parameters, and finally the charger charges the target battery according to the final charging parameters. Because the safe charging parameter is less than or equal to the maximum charging parameter of the target battery, and the final charging parameter established on the basis of the safe charging parameter is less than or equal to the maximum charging parameter of the target battery, the safety of the target battery in the charging process can be improved by charging the target battery according to the final charging parameter. Meanwhile, it may be determined whether the charger satisfies the charging requirement for the target battery by determining whether the safe charging parameter satisfies the charging requirement for the target battery. Therefore, the matching degree between the charger and the target battery can be determined from two aspects of charging safety and whether the charger meets the charging requirement, and the accuracy of determining the matching degree between the charger and the target battery is further improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a diagram of a scenario in which a battery charging method according to an embodiment of the present invention may be implemented;
fig. 2 is a schematic flow chart illustrating a battery charging method according to a first embodiment of the present invention;
fig. 3 is a schematic flow chart of a battery charging method according to a second embodiment of the present invention;
fig. 4 is a schematic flow chart of a battery charging method according to a third embodiment of the present invention;
fig. 5 is a schematic structural diagram of a battery charging apparatus according to a fourth embodiment of the present invention;
fig. 6 is a schematic structural diagram of a battery charging apparatus according to a fifth embodiment of the present invention;
fig. 7 is a schematic structural diagram of a battery management system according to a sixth embodiment of the present invention;
fig. 8 is a schematic diagram of an internal structure of a charger according to a sixth embodiment of the present invention.
With the above figures, certain embodiments of the invention have been illustrated and described in more detail below. The drawings and the description are not intended to limit the scope of the inventive concept in any way, but rather to illustrate it by those skilled in the art with reference to specific embodiments.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
The technical solution of the present invention will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present invention will be described below with reference to the accompanying drawings.
For a clear understanding of the technical solutions of the present application, a detailed description of the prior art solutions is first provided.
In daily use, vehicles using electric energy, particularly two-wheeled vehicles and three-wheeled vehicles, are required to frequently undergo a process of charging and discharging a battery in the vehicle. Meanwhile, because the types of chargers are more, the types of batteries are also more, and in the actual use process, a large number of chargers which are not matched with the batteries charge the batteries. For example, the maximum output parameter of the charger is much larger than the maximum charging parameter that the battery can bear, and since the charger outputs a fixed output parameter during charging, the charger is not adjusted according to the maximum charging parameter of the battery. Therefore, when the maximum output parameter is larger than the maximum charging parameter, the charger may continuously charge the battery with the maximum output parameter, thereby causing instability inside the battery and even causing an explosion problem. Therefore, the current charger and the battery have mismatch, so that the safety of the battery during charging is low. Meanwhile, when the maximum output parameter of the charger is smaller than the minimum charging parameter of the charging requirement of the battery, the charger cannot meet the charging requirement of the battery. Therefore, there is a problem that it is impossible to accurately determine whether there is a match between the current charger and the battery.
Therefore, in order to solve the technical problem that the safety of the battery during charging is low due to the fact that the charger and the battery are not matched in the prior art, the inventor finds out in research that a charging parameter adjusting flow between the charger and a battery management system for managing the battery can be set before charging, and therefore the safety of battery charging is improved. The method comprises the steps of firstly obtaining the maximum charging parameter of a target battery, and sending the maximum charging parameter to a charger. In order to ensure safety during charging, the charger determines the minimum parameter of the maximum charging parameter and the maximum output parameter as a safe charging parameter corresponding to the charger when charging the target battery. Meanwhile, in order to determine whether the safe charging parameters meet the charging requirements of the target battery, final charging parameters are determined according to the safe charging parameters and the minimum charging parameters, and finally the charger charges the target battery according to the final charging parameters. Because the safe charging parameter is less than or equal to the maximum charging parameter of the target battery, and the final charging parameter established on the basis of the safe charging parameter is less than or equal to the maximum charging parameter of the target battery, the safety of the target battery in the charging process can be improved by charging the target battery according to the final charging parameter. Meanwhile, it may be determined whether the charger satisfies the charging requirement for the target battery by determining whether the safe charging parameter satisfies the charging requirement for the target battery. Therefore, the matching degree between the charger and the target battery can be determined from two aspects of charging safety and whether the charger meets the charging requirement, and the accuracy of determining the matching degree between the charger and the target battery is further improved.
The inventor proposes a technical scheme of the application based on the creative discovery.
An application scenario of the battery charging method provided by the embodiment of the present invention is described below. As shown in fig. 1, 1 is a battery management system of a target battery, and 2 is a charger. The network architecture of the application scenario corresponding to the battery charging method provided by the embodiment of the invention comprises the following steps: a battery management system 1 and a charger 2. The battery management system 1 belongs to a management system of a target battery, and is used for being in communication connection with a charger and acquiring charging state data of the target battery, maximum charging parameters of the target battery, ambient temperature and the like. When the target battery needs to be charged, first, a communication connection of the battery management system 1 and the charger 2 is established. The battery management system 1 acquires the maximum charging parameter of the target battery and transmits the maximum charging parameter to the charger 2. In order to ensure safety during charging, the charger 2 determines the minimum parameter of the maximum charging parameter and the maximum output parameter of the charger 2 as a safe charging parameter corresponding to the charger 2 when charging the target battery, and transmits the safe charging parameter to the battery management system 1. Then, the battery management system 1 determines the final charging parameter according to the safe charging parameter and the minimum charging parameter of the target battery that satisfies the charging requirement, and transmits the final charging parameter to the charger 2. At the time of charging, the charger 2 charges the target battery according to the final charging parameter. Because the safe charging parameter is less than or equal to the maximum charging parameter of the target battery, and the final charging parameter established on the basis of the safe charging parameter is less than or equal to the maximum charging parameter of the target battery, the safety of the target battery in the charging process can be improved by charging the target battery according to the final charging parameter. Meanwhile, it may be determined whether the charger satisfies the charging requirement for the target battery by determining whether the safe charging parameter satisfies the charging requirement for the target battery. Therefore, the matching degree between the charger and the target battery can be determined from two aspects of charging safety and whether the charger meets the charging requirement, and the accuracy of determining the matching degree between the charger and the target battery is further improved.
The embodiments of the present invention will be described with reference to the accompanying drawings.
Fig. 2 is a schematic flow chart of a battery charging method according to a first embodiment of the present invention, and as shown in fig. 2, in this embodiment, an execution subject of the embodiment of the present invention is a battery charging device, and the battery charging device may be integrated in an electronic device, such as a battery management system. The battery charging method provided by the embodiment includes the following steps:
step S101, obtaining the maximum charging parameter of the target battery, and sending the maximum charging parameter to the charger, so that the charger determines the minimum parameter of the maximum charging parameter and the maximum output parameter of the charger as the corresponding safe charging parameter when the charger charges the target battery.
In this embodiment, the maximum charging parameter of the target battery refers to the maximum charging parameter allowed by the target battery during charging, and may include a maximum charging voltage and a maximum charging current. The maximum output parameters of the charger refer to the maximum parameters output by the charger when the charger charges the battery, and comprise the maximum output voltage and the maximum output current.
In this embodiment, when the maximum charging parameter of the target battery is sent to the charger, the charging cut-off voltage and the charging parameters of the plurality of voltage segments may also be sent to the charger. After transmitting the charge cutoff voltage and the plurality of voltage segment charging parameters to the charger, the charger may charge the target battery at the time of charging according to the charge cutoff voltage and the plurality of voltage segment charging parameters. For example, the target battery is charged according to the starting voltage, the ending voltage, the charging mode, the constant current value and the constant voltage value in the charging parameters of the voltage segments. Meanwhile, different voltage section charging parameters can be defined in different temperature ranges, so that the charging efficiency is improved.
In this embodiment, the safe charging parameter is the minimum parameter of the maximum charging parameter and the maximum output parameter of the charger, so that the safe charging parameter is less than or equal to the maximum charging parameter, and the charging safety of the target battery can be improved by adjusting the charging parameter with the charger.
And step S102, receiving the safe charging parameters sent by the charger, and acquiring the minimum charging parameters of the target battery, which meet the charging requirements. And determining a final charging parameter according to the safe charging parameter and the minimum charging parameter.
In this embodiment, the minimum charging parameter of the target battery that satisfies the charging requirement refers to a minimum parameter that enables the target battery to have a discharging function. The minimum charge parameters include the discharge cutoff voltage of the target battery, and the corresponding discharge current.
In this embodiment, whether the safety charging parameter obtained after adjustment by the charger meets the charging requirement of the target battery or not can be determined by the safety charging parameter and the minimum charging parameter. Therefore, the situation that the target battery is not charged due to the fact that the maximum output parameter of the charger is too low is avoided.
And step S103, sending the final charging parameters to the charger so that the charger charges the target battery according to the final charging parameters.
In this embodiment, the final charging parameter is a parameter output by the charger during charging, and therefore, after the final charging parameter is sent to the charger, the charger can charge the target battery according to the final charging parameter during charging.
The embodiment of the invention provides a battery charging method, which comprises the following steps: and acquiring the maximum charging parameter of the target battery, and sending the maximum charging parameter to the charger, so that the charger determines the minimum parameter of the maximum charging parameter and the maximum output parameter of the charger as the corresponding safe charging parameter when the charger charges the target battery. And receiving the safe charging parameters sent by the charger, and acquiring the minimum charging parameters of the target battery, which meet the charging requirements. And determining a final charging parameter according to the safe charging parameter and the minimum charging parameter. And sending the final charging parameters to the charger so that the charger charges the target battery according to the final charging parameters. According to the battery charging method provided by the embodiment of the invention, the maximum charging parameter of the target battery is firstly obtained, and the maximum charging parameter is sent to the charger. In order to ensure safety during charging, the charger determines the minimum parameter of the maximum charging parameter and the maximum output parameter as a safe charging parameter corresponding to the charger when charging the target battery. Meanwhile, in order to determine whether the safe charging parameters meet the charging requirements of the target battery, final charging parameters are determined according to the safe charging parameters and the minimum charging parameters, and finally the charger charges the target battery according to the final charging parameters. Because the safe charging parameter is less than or equal to the maximum charging parameter of the target battery, and the final charging parameter established on the basis of the safe charging parameter is less than or equal to the maximum charging parameter of the target battery, the safety of the target battery in the charging process can be improved by charging the target battery according to the final charging parameter. Meanwhile, it may be determined whether the charger satisfies the charging requirement for the target battery by determining whether the safe charging parameter satisfies the charging requirement for the target battery. Therefore, the matching degree between the charger and the target battery can be determined from two aspects of charging safety and whether the charger meets the charging requirement, and the accuracy of determining the matching degree between the charger and the target battery is further improved.
Fig. 3 is a schematic flow chart of a battery charging method according to a second embodiment of the present invention, and as shown in fig. 3, the battery charging method according to this embodiment is further detailed in each step based on the battery charging method according to the previous embodiment of the present invention. The battery charging method provided by the present embodiment includes the following steps.
Step S201, obtaining a maximum charging parameter of the target battery, and sending the maximum charging parameter to the charger, so that the charger determines a minimum parameter of the maximum charging parameter and a maximum output parameter of the charger as a corresponding safe charging parameter when the charger charges the target battery.
In this embodiment, the implementation manner of step 201 is similar to that of step 101 in the previous embodiment of the present invention, and is not described in detail here.
It should be noted that the steps 202-204 are further detailed for the step 102.
Step S202, receiving the safe charging parameters sent by the charger, and acquiring the minimum charging parameters of the target battery, which meet the charging requirements.
In this embodiment, an implementation manner of step 202 in this embodiment is similar to that of step 102 in the previous embodiment of the present invention, and is not described in detail here.
The maximum charging parameters comprise maximum charging voltage and maximum charging current, and the maximum output parameters comprise maximum output voltage and maximum output current. The safe charging parameter includes a safe output voltage and a safe output current, and the minimum charging parameter includes a discharge cutoff voltage.
Step S203 compares the safety output voltage with the discharge cutoff voltage.
In this embodiment, whether the safety output voltage obtained through adjustment by the charger meets the charging requirement of the target battery or not can be determined through the safety output voltage and the discharge cutoff voltage. Therefore, the situation that the target battery is not charged due to the fact that the maximum output parameter of the charger is too low is avoided.
In the present embodiment, the magnitude relationship between the safe output voltage and the discharge cutoff voltage is determined by comparing the safe output voltage and the discharge cutoff voltage.
And step S204, determining a final charging parameter according to the comparison result.
In this embodiment, after the comparison result between the safety output voltage and the discharge cutoff voltage is obtained, the final charging parameter may be determined according to the comparison result.
Optionally, in this embodiment, determining the final charging parameter according to the comparison result includes:
and if the safe output voltage is greater than or equal to the discharge cutoff voltage, determining the safe output voltage and the corresponding safe output current as final charging parameters.
If the safe output voltage is less than the discharge cutoff voltage, a zero value is determined as the final charging parameter.
In this embodiment, if the safe output voltage is greater than or equal to the discharge cutoff voltage, it represents that the safe output voltage satisfies the charging requirement of the target battery, and thus, the safe output voltage is determined as the final charging parameter. If the safe output voltage is less than the discharge cut-off voltage, the safe output voltage cannot meet the charging requirement of the target battery, at the moment, a zero value is determined as a final charging parameter, so that the charger is determined as a charger which is not matched with the target battery completely, the charger cannot realize the charging function of the target battery, and the target battery needs to be replaced.
And step S205, sending the final charging parameters to the charger so that the charger charges the target battery according to the final charging parameters.
In this embodiment, the implementation manner of step 205 is similar to that of step 103 in the previous embodiment of the present invention, and is not described in detail here.
Step S206, monitoring the actual charging parameters output by the charger during charging.
In this embodiment, since the charger may fluctuate during actual charging, the actual charging parameters of the charger during charging are monitored in real time.
In step S207, a first difference between the actual charging parameter and the final charging parameter is calculated.
In this embodiment, the first difference is used to reflect fluctuation of an actual charging parameter output by the charger during charging.
Step S208, if the first difference value is within the preset warning threshold range, the charging parameter changing instruction is sent to the charger, so that the charger changes the actual charging parameter according to the charging parameter changing instruction. Wherein the modified actual charging parameter is less than or equal to the final charging parameter.
In this embodiment, the warning threshold range may be set according to actual requirements, which is not limited in this embodiment. The charging parameter changing instruction is mainly used for enabling the charger to change the actual charging parameter according to the charging parameter changing instruction, so that fluctuation between the changed actual charging parameter and the final charging parameter is reduced.
In step S209, a second difference between the modified actual charging parameter and the final charging parameter is calculated. And if the second difference values are within the preset warning threshold range within the preset time, sending a charging stop instruction to the charger so that the charger stops charging the target battery.
In this embodiment, the second difference is used to determine whether the changed actual charging parameter still fluctuates greatly, and if the second difference is within the preset warning threshold range in the preset time, it indicates that the charger does not achieve the effect when changing the output actual charging parameter, so that the charging of the target battery needs to be stopped to avoid explosion or other accidents occurring during the charging of the battery.
Optionally, in this embodiment, if the first difference is within a preset warning threshold range, the method further includes:
and outputting the warning information to warning equipment.
In this embodiment, can be through output warning information to warning equipment to make warning equipment inform the staff who charges, notice the abnormal conditions when charging in advance, avoid taking place unexpected circumstances such as battery explosion when charging, thereby improve the security of charging.
According to the battery charging method provided by the embodiment of the invention, the actual charging parameters output by the charger during charging are monitored, and if the first difference value is within the preset warning threshold range, the charging parameter change instruction is sent to the charger, so that the charger changes the actual charging parameters according to the charging parameter change instruction, and the charging safety of the target battery is improved. If the second difference value between the changed actual charging parameter and the final charging parameter is within the preset warning threshold value range within the preset time after the actual charging parameter is changed, the charger does not achieve the effect when the output actual charging parameter is changed. At this time, the charger stops charging the target battery, thereby avoiding explosion or other accidents during battery charging and improving the charging safety of the target battery.
Fig. 4 is a flowchart illustrating a battery charging method according to a third embodiment of the present invention. As shown in fig. 4, in the present embodiment, the execution subject of the embodiment of the present invention is a battery charging device, and the battery charging device may be integrated in a charger. The battery charging method provided in this embodiment is based on the battery charging methods of the first and second embodiments, and the battery charging method provided in this embodiment includes the following steps:
step S301, receiving the maximum charging parameter of the target battery sent by the battery management system corresponding to the target battery and determining the minimum parameter of the maximum charging parameter and the maximum output parameter output during charging as the corresponding safe charging parameter during charging the target battery.
In this embodiment, the maximum charging parameter of the target battery refers to the maximum charging parameter allowed by the target battery during charging, and may include a maximum charging voltage and a maximum charging current. The maximum output parameter refers to the maximum parameter output by the charger when charging the battery, and comprises the maximum output voltage and the maximum output current. When receiving the maximum charging parameter sent by the battery management system, the minimum parameter of the maximum charging parameter and the maximum output parameter of the charger may be determined as the corresponding safe charging parameter when the charger charges the target battery. For example, the maximum output voltage is 100 v and the maximum output current is 10 a, and the maximum charging voltage of the target battery is 80 v and the maximum charging current is 8 a, then 80 v and 8 a are used as the safe charging parameters.
In this embodiment, the safe charging parameter is the minimum parameter of the maximum charging parameter and the maximum output parameter of the charger, so that the safe charging parameter is less than or equal to the maximum charging parameter, and the charging safety of the target battery can be improved by adjusting the charging parameter with the battery management system.
Step S302, the safe charging parameters are sent to the battery management system, so that the battery management system determines final charging parameters according to the safe charging parameters and the minimum charging parameters of the target battery, which meet the charging requirements.
In this embodiment, the minimum charging parameter of the target battery that meets the charging requirement refers to a minimum parameter that enables the target battery to have a discharging function. The minimum charge parameters include the discharge cutoff voltage of the target battery, and the corresponding discharge current.
In this embodiment, whether the adjusted safe charging parameter meets the charging requirement of the target battery or not can be determined by the safe charging parameter and the minimum charging parameter. Therefore, the situation that the target battery cannot be charged due to the fact that the maximum output parameter is too low is avoided.
And step S303, receiving the final charging parameter sent by the battery management system, and charging the target battery according to the final charging parameter.
In this embodiment, the implementation manner of step 303 is similar to that of step 103 in the previous embodiment of the present invention, and is not described in detail here.
Optionally, in this embodiment, the maximum charging parameter includes a maximum charging voltage. The maximum output parameter includes a maximum output voltage. The safe charging parameter includes a safe output voltage.
The battery charging method provided by the embodiment of the invention firstly receives the maximum charging parameter of the target battery, which is sent by the battery management system corresponding to the target battery. In order to ensure safety during charging, the minimum parameter of the maximum charging parameter and the maximum output parameter is determined as a safe charging parameter corresponding to the charger when charging the target battery. Meanwhile, in order to determine whether the safe charging parameters meet the charging requirements of the target battery, the safe charging parameters are sent to the battery management system, so that the battery management system determines final charging parameters according to the safe charging parameters and the minimum charging parameters, and finally the target battery is charged according to the final charging parameters sent by the battery management system. Because the safe charging parameter is less than or equal to the maximum charging parameter of the target battery, and the final charging parameter established on the basis of the safe charging parameter is less than or equal to the maximum charging parameter of the target battery, the safety of the target battery in the charging process can be improved by charging the target battery according to the final charging parameter. Meanwhile, it may be determined whether the charging requirement of the target battery is satisfied by determining whether the safe charging parameter satisfies the charging requirement of the target battery. Therefore, the matching degree between the charger and the target battery can be determined from two aspects of charging safety and whether the charger meets the charging requirement, and the accuracy of determining the matching degree between the charger and the target battery is further improved.
Fig. 5 is a schematic structural diagram of a battery charging apparatus according to a fourth embodiment of the present invention, as shown in fig. 5, in this embodiment, the battery charging apparatus is located in a battery management system of a target battery, and the battery charging apparatus 400 includes:
the obtaining module 401 is configured to obtain a maximum charging parameter of the target battery, and send the maximum charging parameter to the charger, so that the charger determines a minimum parameter between the maximum charging parameter and a maximum output parameter of the charger as a corresponding safe charging parameter when the charger charges the target battery.
And a final charging parameter determining module 402, configured to receive the safe charging parameter sent by the charger, and obtain a minimum charging parameter of the target battery, where the minimum charging parameter meets the charging requirement. And determining a final charging parameter according to the safe charging parameter and the minimum charging parameter.
And a final charging parameter sending module 403, configured to send the final charging parameter to the charger, so that the charger charges the target battery according to the final charging parameter.
The battery charging apparatus provided in this embodiment may implement the technical solution of the method embodiment shown in fig. 2, and the implementation principle and the technical effect thereof are similar to those of the method embodiment shown in fig. 2, and are not described in detail herein.
Meanwhile, another embodiment of the battery charging apparatus provided by the present invention further refines the battery charging apparatus 400 on the basis of the battery charging apparatus provided by the previous embodiment.
Optionally, in this embodiment, the maximum charging parameter includes a maximum charging voltage and a maximum charging current. The maximum output parameters include a maximum output voltage and a maximum output current. The safe charging parameters include a safe output voltage and a safe output current. The minimum charge parameter includes a discharge cutoff voltage.
When determining the final charging parameter according to the safe charging parameter and the minimum charging parameter, the final charging parameter determining module 402 is specifically configured to:
the safe output voltage is compared with the discharge cutoff voltage. And determining the final charging parameter according to the comparison result.
When determining the final charging parameter according to the comparison result, the final charging parameter determining module 402 is specifically configured to:
and if the safe output voltage is greater than or equal to the discharge cutoff voltage, determining the safe output voltage and the corresponding safe output current as final charging parameters. If the safe output voltage is less than the discharge cutoff voltage, a zero value is determined as the final charging parameter.
Optionally, in this embodiment, the battery charging apparatus 400 further includes:
and the monitoring module is used for monitoring the actual charging parameters output by the charger during charging. A first difference between the actual charging parameter and the final charging parameter is calculated. And if the first difference value is within the preset warning threshold value range, sending a charging parameter change instruction to the charger so that the charger changes the actual charging parameter according to the charging parameter change instruction. Wherein the modified actual charging parameter is less than or equal to the final charging parameter.
A second difference between the modified actual charging parameter and the final charging parameter is calculated. And if the second difference values are within the preset warning threshold range within the preset time, sending a charging stop instruction to the charger so that the charger stops charging the target battery.
And the warning module is used for outputting warning information to the warning equipment if the first difference value is within a preset warning threshold range.
The battery charging apparatus provided in this embodiment may implement the technical solutions of the method embodiments shown in fig. 2 to 3, and the implementation principles and technical effects thereof are similar to those of the method embodiments shown in fig. 2 to 3, and are not described in detail herein.
Fig. 6 is a schematic structural diagram of a battery charging apparatus according to a fifth embodiment of the present invention, as shown in fig. 6, in this embodiment, the battery charging apparatus 500 is located in a charger, and the battery charging apparatus 500 includes:
the safe charging parameter determining module 501 is configured to receive a maximum charging parameter of the target battery sent by the battery management system corresponding to the target battery, and determine a minimum parameter between the maximum charging parameter and a maximum output parameter output during charging as a corresponding safe charging parameter during charging of the target battery.
A safe charging parameter sending module 502, configured to send the safe charging parameter to the battery management system, so that the battery management system determines the final charging parameter according to the safe charging parameter and the minimum charging parameter of the target battery, which meets the charging requirement.
And the charging module 503 is configured to receive the final charging parameter sent by the battery management system, and charge the target battery according to the final charging parameter.
Optionally, the maximum charging parameter comprises a maximum charging voltage. The maximum output parameter includes a maximum output voltage. The safe charging parameter includes a safe output voltage.
The battery charging apparatus provided in this embodiment may implement the technical solution of the method embodiment shown in fig. 4, and the implementation principle and the technical effect thereof are similar to those of the method embodiment shown in fig. 4, and are not described in detail herein.
The invention also provides a battery management system, a charger, a computer readable storage medium and a computer program product according to the embodiments of the invention.
As shown in fig. 7 and 8, fig. 7 is a schematic structural diagram of a battery management system according to a sixth embodiment of the present invention, and fig. 8 is a schematic internal structural diagram of a charger according to the sixth embodiment of the present invention. The battery management system and the charger can be internally provided with various small electronic devices, such as a microprocessor and a singlechip. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the inventions described and/or claimed herein.
As shown in fig. 7, the battery management system includes: a processor 601, a memory 602. The various components are interconnected using different buses and may be mounted on a common motherboard or in other manners as desired. The processor may process instructions for execution within the electronic device.
The memory 602 is a non-transitory computer readable storage medium provided by the present invention. The memory stores instructions executable by the at least one processor, so that the at least one processor executes the battery charging method provided in the first and second embodiments of the present invention. The non-transitory computer-readable storage medium of the present invention stores computer instructions for causing a computer to execute the battery charging method provided by the present invention.
The memory 602, which is a non-transitory computer-readable storage medium, may be used to store non-transitory software programs, non-transitory computer-executable programs, and modules, such as program instructions/modules corresponding to the battery charging method in the embodiment of the present invention (for example, the obtaining module 401, the final charging parameter determining module 402, and the final charging parameter transmitting module 403 shown in fig. 5). The processor 601 executes various functional applications of the server and data processing, i.e., implements the battery charging method in the above-described method embodiments, by running non-transitory software programs, instructions, and modules stored in the memory 602.
As shown in fig. 8, the charger includes: a processor 701, a memory 702. The various components are interconnected using different buses and may be mounted on a common motherboard or in other manners as desired. The processor may process instructions for execution within the electronic device.
The memory 702 is a non-transitory computer readable storage medium provided by the present invention. The memory stores instructions executable by the at least one processor, so that the at least one processor performs the battery charging method according to the third embodiment of the present invention. The non-transitory computer-readable storage medium of the present invention stores computer instructions for causing a computer to execute the battery charging method provided by the present invention.
The memory 702, which is a non-transitory computer-readable storage medium, may be used to store non-transitory software programs, non-transitory computer-executable programs, and modules, such as program instructions/modules corresponding to the battery charging method in the embodiment of the present invention (for example, the secure charging parameter determining module 501, the secure charging parameter transmitting module 502, and the charging module 503 shown in fig. 6). The processor 701 executes various functional applications of the server and data processing, i.e., implements the battery charging method in the above-described method embodiments, by running non-transitory software programs, instructions, and modules stored in the memory 702.
Meanwhile, the present embodiment also provides a computer product, wherein when the instructions in the computer product are executed by a processor of the battery management system or the charger, the instructions enable the battery management system to execute the battery charging method of the first embodiment and the battery charging method of the second embodiment, and enable the charger to execute the battery charging method of the third embodiment.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the embodiments of the invention following, in general, the principles of the embodiments of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the embodiments of the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of embodiments of the invention being indicated by the following claims.
It is to be understood that the embodiments of the present invention are not limited to the precise arrangements described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of embodiments of the invention is limited only by the appended claims.
Claims (10)
1. A battery charging method applied to a battery management system of a target battery, the method comprising:
the method comprises the steps of obtaining the maximum charging parameter of a target battery, and sending the maximum charging parameter to a charger, so that the charger determines the minimum parameter of the maximum charging parameter and the maximum output parameter of the charger as a corresponding safe charging parameter when the charger charges the target battery;
receiving the safe charging parameters sent by the charger, and acquiring the minimum charging parameters of the target battery, which meet the charging requirements; determining a final charging parameter according to the safe charging parameter and the minimum charging parameter;
and sending the final charging parameters to the charger so that the charger charges the target battery according to the final charging parameters.
2. The method of claim 1, wherein the maximum charging parameters comprise a maximum charging voltage and a maximum charging current; the maximum output parameters comprise a maximum output voltage and a maximum output current; the safe charging parameters comprise safe output voltage and safe output current; the minimum charge parameter comprises a discharge cutoff voltage;
the determining a final charging parameter according to the safe charging parameter and the minimum charging parameter includes:
comparing the safe output voltage and the discharge cutoff voltage;
determining a final charging parameter according to the comparison result;
the determining the final charging parameter according to the comparison result includes:
if the safe output voltage is greater than or equal to the discharge cutoff voltage, determining the safe output voltage and the corresponding safe output current as final charging parameters;
and if the safe output voltage is less than the discharge cut-off voltage, determining a zero value as a final charging parameter.
3. The method of claim 1 or 2, wherein sending the final charging parameters to the charger further comprises:
monitoring actual charging parameters output by the charger during charging;
calculating a first difference between the actual charging parameter and the final charging parameter;
if the first difference value is within a preset warning threshold value range, sending a charging parameter changing instruction to the charger so that the charger changes the actual charging parameter according to the charging parameter changing instruction; wherein the modified actual charging parameter is less than or equal to the final charging parameter;
calculating a second difference between the modified actual charging parameter and the final charging parameter;
if the second difference values are within the preset warning threshold value range within the preset time, sending a charging stop instruction to the charger so that the charger stops charging the target battery;
if the first difference value is within a preset warning threshold range, the method further comprises:
and outputting the warning information to warning equipment.
4. A method for charging a battery, the method being applied to a charger, the method comprising:
receiving a maximum charging parameter of a target battery sent by a battery management system corresponding to the target battery, and determining a minimum parameter of the maximum charging parameter and a maximum output parameter output during charging as a corresponding safe charging parameter during charging of the target battery;
sending the safe charging parameters to the battery management system so that the battery management system determines final charging parameters according to the safe charging parameters and the minimum charging parameters of the target battery, which meet the charging requirements;
and receiving the final charging parameters sent by the battery management system, and charging the target battery according to the final charging parameters.
5. A battery charging apparatus, wherein the apparatus is located in a battery management system of a target battery, the apparatus comprising:
the acquisition module is used for acquiring the maximum charging parameter of the target battery and sending the maximum charging parameter to the charger so that the charger determines the minimum parameter between the maximum charging parameter and the maximum output parameter of the charger as the corresponding safe charging parameter when the charger charges the target battery;
the final charging parameter determining module is used for receiving the safe charging parameters sent by the charger and acquiring the minimum charging parameters of the target battery, which meet the charging requirements; determining a final charging parameter according to the safe charging parameter and the minimum charging parameter;
and the final charging parameter sending module is used for sending the final charging parameters to the charger so that the charger charges the target battery according to the final charging parameters.
6. A battery charging apparatus, the apparatus being located in a charger, the apparatus comprising:
the safe charging parameter determining module is used for receiving the maximum charging parameter of the target battery sent by the battery management system corresponding to the target battery and determining the minimum parameter between the maximum charging parameter and the maximum output parameter output during charging as the corresponding safe charging parameter during charging the target battery;
the safe charging parameter sending module is used for sending the safe charging parameters to the battery management system so that the battery management system determines final charging parameters according to the safe charging parameters and the minimum charging parameters of the target battery, which meet the charging requirements;
and the charging module is used for receiving the final charging parameters sent by the battery management system and charging the target battery according to the final charging parameters.
7. A battery management system, comprising: a memory, a processor;
a memory; a memory for storing the processor-executable instructions;
wherein the processor is configured to perform the battery charging method of any one of claims 1 to 3 by the processor.
8. A charger, comprising: a memory, a processor;
a memory; a memory for storing the processor-executable instructions;
wherein the processor is configured to perform the battery charging method of claim 4 by the processor.
9. A computer-readable storage medium having computer-executable instructions stored thereon, which when executed by a processor, are configured to implement the battery charging method according to any one of claims 1 to 3 or the battery charging method according to claim 4.
10. A computer program product comprising a computer program, characterized in that the computer program, when being executed by a processor, implements the battery charging method according to any one of claims 1 to 3 or the battery charging method according to claim 4.
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