CN116552272A - Battery charging protection method and device, storage medium and electronic equipment - Google Patents

Battery charging protection method and device, storage medium and electronic equipment Download PDF

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Publication number
CN116552272A
CN116552272A CN202310747079.3A CN202310747079A CN116552272A CN 116552272 A CN116552272 A CN 116552272A CN 202310747079 A CN202310747079 A CN 202310747079A CN 116552272 A CN116552272 A CN 116552272A
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CN
China
Prior art keywords
charging
battery
current
overcurrent
information
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Pending
Application number
CN202310747079.3A
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Chinese (zh)
Inventor
郎锦峰
张頔
刘轶鑫
霍艳红
刘永山
翟一明
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FAW Group Corp
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FAW Group Corp
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Priority to CN202310747079.3A priority Critical patent/CN116552272A/en
Publication of CN116552272A publication Critical patent/CN116552272A/en
Pending legal-status Critical Current

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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
    • 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
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • 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
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00304—Overcurrent protection
    • 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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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The embodiment of the disclosure provides a protection method, a device, a storage medium and electronic equipment for battery charging, wherein the protection method comprises the steps of acquiring battery charging information and battery state information of a battery in a current charging cycle when the battery is in a preset charging mode; when the actual charging current in the battery state information meets a preset condition, determining that the battery triggers a charging overcurrent alarm or a charging overcurrent fault; controlling derating charge under the condition that the battery triggers a charging overcurrent alarm; or controlling to stop charging under the condition that the battery triggers the charging overcurrent fault. According to the method and the device for monitoring the charging process of the battery in real time, the related information in the charging process is recorded, historical charging data are analyzed through the cloud server, so that corresponding protection measures can be started on the battery under different charging working conditions, and the problems that the power battery is damaged due to charging overcurrent and safety accidents are caused when the current heavy current is charged are solved.

Description

Battery charging protection method and device, storage medium and electronic equipment
Technical Field
The disclosure relates to the technical field of charging control, in particular to a battery charging protection method and device, a storage medium and electronic equipment.
Background
The market size of new energy automobiles is continuously expanding, but the charging speed of a power battery is still a concern, and in order to improve the charging speed, most of the options are to improve the charging rate of the battery as much as possible. The charging rate of the battery can be improved, but when the current fluctuates due to factors such as power grid load in the heavy current charging process, the charging overcurrent is easy to cause, the power battery is damaged, and safety accidents can be caused under extreme conditions.
Disclosure of Invention
An embodiment of the disclosure is directed to a method and a device for protecting battery charging, a storage medium and an electronic device, so as to solve the problems in the prior art.
In order to solve the above technical problems, the embodiments of the present disclosure adopt the following technical solutions:
an aspect of an embodiment of the present disclosure provides a method for protecting battery charging, including:
when the battery is in a preset charging mode, battery charging information and battery state information of the battery in a current charging cycle are obtained;
when the actual charging current in the battery state information meets a preset condition, determining that the battery triggers a charging overcurrent alarm or a charging overcurrent fault;
controlling derating charge under the condition that the battery triggers a charging overcurrent alarm; or controlling to stop charging under the condition that the battery triggers the charging overcurrent fault.
In some embodiments, further comprising: and after the battery finishes the current charging cycle, uploading charging data of the current charging cycle to a cloud server for charging data analysis and establishing a charging overflow database.
In some embodiments, further comprising: in response to a charging request of a current vehicle, charging recommendation information is determined.
In some embodiments, the determining the charging recommendation information in response to the charging request of the current vehicle includes:
receiving information of a charging overflow database when the charging request meets a preset condition;
and determining a charging mode and charging protection information based on the information of the charging overflow database.
In some embodiments, determining the charging mode includes:
and recommending a corresponding charging mode according to the current time period recorded in the charging overcurrent database and the frequency of charging overcurrent alarm or the frequency of charging overcurrent fault in the area, or recommending a corresponding charging mode according to the number of the charging equipment in the current charging cycle and the frequency of charging overcurrent alarm or the frequency of charging overcurrent fault of the charging equipment recorded in the charging overcurrent database.
In some embodiments, before acquiring the battery charging information and the battery status information of the battery in the current charging cycle when the battery is in the predetermined charging mode, the method further includes:
it is determined whether the battery is currently in a predetermined charging mode, the predetermined charging mode being one of direct current charging, alternating current charging, in-station charging, and super charging.
In some embodiments, when the actual charging current in the battery state information meets a predetermined condition, it is determined that the battery triggers a charging over-current alarm or a charging over-current fault, when the actual charging current exceeds a maximum charging current k1 allowed by the battery at the current moment, the charging over-current alarm is triggered, and when the actual charging current exceeds a maximum charging current k2 allowed by the battery at the current moment, the charging over-current fault is triggered, where k1< k2.
Another aspect of the disclosed embodiments provides a battery charging protection device, including:
the acquisition module is used for acquiring battery charging information and battery state information of the battery in a current charging cycle when the battery is in a preset charging mode;
the determining module is used for determining that the battery triggers a charging overcurrent alarm or a charging overcurrent fault when the actual charging current in the battery state information meets a preset condition;
the charging control module is used for controlling derating charging under the condition that the battery triggers a charging overcurrent alarm; or controlling to stop charging under the condition that the battery triggers the charging overcurrent fault.
The present disclosure also provides a storage medium storing a computer program which, when executed by a processor, performs the steps of any of the methods described above.
The present disclosure also provides an electronic device comprising at least a memory, a processor, the memory having stored thereon a computer program, the processor, when executing the computer program on the memory, implementing the steps of any of the methods described above.
According to the method and the device for monitoring the charging process of the battery in real time, the related information in the charging process is recorded, historical charging data are analyzed through the cloud server, so that corresponding protection measures can be started on the battery under different charging working conditions, and the problems that the power battery is damaged due to charging overcurrent and safety accidents are caused when the current heavy current is charged are solved.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present disclosure, and other drawings may be obtained according to these drawings without inventive effort to a person of ordinary skill in the art.
Fig. 1 is a schematic diagram illustrating steps of a method for protecting battery charging according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram illustrating steps of a method for protecting battery charging according to an embodiment of the present disclosure.
Detailed Description
Various aspects and features of the disclosure are described herein with reference to the drawings.
It should be understood that various modifications may be made to the embodiments of the application herein. Therefore, the above description should not be taken as limiting, but merely as exemplification of the embodiments. Other modifications within the scope and spirit of this disclosure will occur to persons of ordinary skill in the art.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and, together with a general description of the disclosure given above and the detailed description of the embodiments given below, serve to explain the principles of the disclosure.
These and other characteristics of the present disclosure will become apparent from the following description of a preferred form of embodiment, given as a non-limiting example, with reference to the accompanying drawings.
It should also be understood that, although the present disclosure has been described with reference to some specific examples, a person skilled in the art will certainly be able to achieve many other equivalent forms of the present disclosure, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.
The above and other aspects, features and advantages of the present disclosure will become more apparent in light of the following detailed description when taken in conjunction with the accompanying drawings.
Specific embodiments of the present disclosure will be described hereinafter with reference to the accompanying drawings; however, it is to be understood that the disclosed embodiments are merely examples of the disclosure, which may be embodied in various forms. Well-known and/or repeated functions and constructions are not described in detail to avoid obscuring the disclosure in unnecessary or unnecessary detail. Therefore, specific structural and functional details disclosed herein are not intended to be limiting, but merely serve as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present disclosure in virtually any appropriately detailed structure.
The specification may use the word "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which may each refer to one or more of the same or different embodiments in accordance with the disclosure.
A first embodiment of the present disclosure provides a protection method for battery charging, as shown in fig. 1, including:
s101, when the battery is in a preset charging mode, battery charging information and battery state information of the battery in a current charging cycle are obtained.
In this step, when the battery is in a predetermined charging mode, battery charging information and battery state information of the battery in a current charging cycle are acquired. Specifically, in this step, the charging information of the battery is acquired and acquired. Considering that the charging information corresponding to different charging modes is different, the battery needs to be detected in the charging mode before, namely whether the battery is in a preset charging mode currently is determined, and when the battery is detected to be in the preset charging mode, the battery charging information and the battery state information of the battery in the preset charging mode in the current charging cycle are acquired and recorded in a targeted mode.
Specifically, the predetermined charging modes herein include, but are not limited to, a charging mode such as direct current charging, alternating current charging, in-station charging, super charging, and the like, and when it is detected that the battery is in any one of the predetermined charging modes described above, battery charging information of the battery corresponding to the predetermined charging mode in the current charging cycle is acquired. For example, when the battery is in a direct current charging mode, current charging position information, charging pile number information and the like of the battery are obtained; when the battery is in an alternating current charging mode, acquiring the current charging position of the battery, the serial number information of an alternating current charging pile and the like; when the battery is in an in-station charging mode, acquiring position information of a battery exchange station, serial number information of the battery exchange station and the like; and when the battery is in the super charging mode, acquiring the current charging position of the battery, the number information of the super charging pile and the like.
Further, when it is detected that the battery is in any of the above-mentioned predetermined charging modes, battery state information of the battery may also be collected in real time by a collecting device, where the battery state information includes, but is not limited to, a highest cell voltage, a lowest cell voltage, a highest temperature, a lowest temperature, a state of charge SOC, a state of health SOH, an ambient temperature, a charging/recharging connector temperature, a charging request current, an actual charging current, a load current, a charging time, a current fault state, and the like.
And S102, when the actual charging current in the battery state information meets a preset condition, determining that the battery triggers a charging overcurrent alarm or a charging overcurrent fault.
After the battery charging information and the battery state information of the battery in the current charging cycle are acquired when the battery is in the predetermined charging mode through the above step S101, in this step, when the actual charging current in the battery state information satisfies the predetermined condition, it is determined that the battery triggers a charging overcurrent alarm or a charging overcurrent fault.
Since the obtained battery state information has information of an actual charging current, when detecting that a charging current is input to the battery, a charging monitoring function for the battery may be started. Specifically, the actual charging current of the battery is acquired and obtained in real time through a current sensor, the actual charging current is compared with the maximum charging current allowed by the battery at the current moment, when the actual charging current exceeds the maximum charging current allowed by the battery at the current moment by k1, a charging overcurrent alarm is triggered, and a flag of the charging overcurrent alarm is set to 1. Further, when the actual charging current exceeds the maximum charging current k2 allowed by the battery at the present moment, a charging overcurrent fault is triggered, and the coefficients k1 and k2 are determined according to the actual situation, wherein k1< k2 need to be described. In addition, the duration of the alarm or fault can be increased to judge whether to trigger the charging overcurrent alarm or the charging overcurrent fault. Where k1 may be selected to be a value between 1 and 1.05
Specifically, the actual charging current of the battery is collected in real time, the maximum charging current allowed by the battery at the current moment is obtained through a charging MAP, and the product of the actual charging current and the maximum charging current and a preset coefficient (k 1 or k 2) is compared to detect whether to trigger a charging overcurrent alarm or whether to trigger a charging overcurrent fault.
In addition, when the charge over-current alarm or the charge over-current fault is triggered, the charge information of the battery at the current moment of triggering is recorded, wherein the charge information comprises, but is not limited to, the time for triggering the charge over-current alarm, the current of the charge request of the battery, the actual charge current, the SOC of the battery, the single voltage and the like.
S103, controlling derating charge under the condition that the battery triggers a charging overcurrent alarm; or controlling to stop charging under the condition that the battery triggers the charging overcurrent fault.
After determining that the battery triggers a charging overcurrent alarm or a charging overcurrent fault when the actual charging current in the battery state information satisfies a predetermined condition through the above step S102, in this step, in the case that the battery triggers a charging overcurrent alarm, derating charging is controlled; or controlling to stop charging under the condition that the battery triggers the charging overcurrent fault.
Specifically, after the charge overcurrent alarm is triggered for the first time in the current charge cycle, a charge overcurrent alarm mark is set to 1, the charge information at the current moment is recorded, and counting is started at the same time, and when the overcurrent alarm frequency exceeds a set threshold value in the current charge cycle, derating charge is started; likewise, after the triggering charging overcurrent alarm occurs in the current charging cycle, charging information at the current moment is recorded, and charging is stopped immediately.
Specifically, in one embodiment, the process of detecting the actual charging current and triggering the charging overcurrent alarm is as follows:
(1) Setting the charge overcurrent alarm accumulated time of the current charge cycle to 0 in the charge initial stage of the battery;
(2) Calculating through the following formula, if Cur_real-Cur_max_k1 >0 is met and the duration exceeds the alarm confirmation time threshold, setting a flag of the charging overcurrent alarm to 1; if the charging overcurrent alarm mark is set to 1, the condition is not satisfied, and the duration exceeds the alarm release time threshold, the charging overcurrent alarm mark is cleared to 0; wherein Cur_real is the actual charging current of the battery, cur_max is the maximum charging current allowed by the battery at the current moment of the battery, and k1 is the charging overcurrent alarm coefficient.
(3) When the charging overcurrent alarm flag is detected to be set to 1, adding 1 to the charging overcurrent accumulated times of the current charging cycle, and when the charging overcurrent alarm is released, maintaining the accumulated times unchanged;
(4) When the flag 1 of the charging overcurrent alarm is detected, charging information at the current moment is recorded, wherein the charging information comprises but is not limited to the time of triggering the charging overcurrent alarm, the battery charging request current, the actual charging current of the battery, the battery SOC, the battery cell voltage and the like;
(5) If the accumulated number of the charging overcurrent alarms in the current charging cycle exceeds the set threshold of the charging overcurrent alarms, the charging derating is started, and the charging request current is reduced to reduce the damage to the battery.
Specifically, in one embodiment, the flow of detecting the actual charging current and triggering the charging overcurrent fault is as follows:
(1) Calculating by the following formula, if Cur_real-Cur_max_k2 >0 is satisfied and the duration exceeds the fault confirmation time threshold, setting a charging overcurrent fault flag to 1; if the condition is not satisfied after the charging overcurrent fault flag is set to 1, the charging overcurrent fault flag is maintained to be 1; wherein Cur_real is the actual charging current, cur_max is the maximum charging current allowed by the battery at the current moment of the battery, and k2 is the charging overcurrent fault coefficient.
(2) When detecting that the charging overcurrent fault flag is set to 1, sending a charging prohibition flag, and immediately stopping the charging process;
(3) When the charging overcurrent fault flag is set to 1, charging information at the current moment is recorded, including but not limited to triggering charging overcurrent fault time, battery charging request current, actual charging current of a battery, battery SOC, battery cell voltage and the like.
In other embodiments, derating charge is controlled in the event that the battery triggers a charge over-current alarm; or when the battery triggers the charging overcurrent fault, the method further comprises the following steps:
and S104, after the battery finishes the current charging cycle, uploading charging data of the current charging cycle to a cloud server for charging data analysis and establishing a charging overflow database.
In this step, after the battery finishes the current charging cycle, charging data of the current charging cycle is uploaded to a cloud server for charging data analysis. Specifically, when the end of the current charging cycle of the battery is detected, uploading charging data recorded from a charging start stage to an end stage to a cloud server; the charging data herein includes not only normal charging information, but also information related to charging overcurrent alarm and/or charging overcurrent fault, including but not limited to charging overcurrent alarm time, accumulated times of charging overcurrent in the current charging cycle, charging overcurrent fault time and the like.
Further, the cloud server may analyze the charging data of different vehicles, for example, an analysis module on the cloud server is used to determine whether an charging overcurrent alarm or a charging overcurrent fault occurs in the current charging cycle, and if any two of the two occur, the data of the current charging cycle is analyzed, so as to establish a charging overcurrent database.
The flow of analysis and establishment of the charge overflow database described herein is specifically as follows:
(1) Judging whether the current charging cycle has an overcharge overcurrent alarm or a charging overcurrent fault, and if the current charging cycle has neither the charge overcurrent alarm nor the charging overcurrent fault, not analyzing the charging data of the current charging cycle; if the overcharge overcurrent alarm occurs, the step (2) is executed, and if the overcharge overcurrent fault occurs, the step (4) is executed;
(2) If the overcharge overcurrent alarm occurs in the secondary charging cycle, extracting information of the overcurrent alarm moment of the secondary charging cycle, such as the occurrence time of the charge overcurrent alarm, the SOC of the battery, the single voltage interval of the battery and the like, and if the overcharge overcurrent alarm occurs for a plurality of times, extracting relevant information when the overcharge alarm occurs for each time, and counting the extraction result to be used as a reference for the recommendation of the subsequent charging;
(3) If a charging cycle has a plurality of charging overcurrent alarms and the accumulated times exceeds a set threshold value, the threshold value can be set to 5-10 times, information of charging equipment in the current charging cycle, such as a charging mode, a charging position, a corresponding charging equipment number and the like, is extracted, and the information is imported into a charging overcurrent database;
(4) If one charging cycle has a charging overcurrent fault, extracting information of the moment of the overcurrent fault of the current charging cycle, such as information of occurrence time of the charging overcurrent fault, SOC of the battery, single voltage interval of the battery and the like, and incorporating a statistical result, and extracting charging equipment information of the current charging cycle, such as a charging mode, a charging position, a corresponding charging equipment number and the like, and importing the information into a charging overcurrent database.
In some embodiments, when the user drives the vehicle and wishes to charge or has a charging demand, the protection method further comprises:
in response to a charging request of a current vehicle, charging recommendation information is determined.
After the current charging cycle is completed by the above step S104, the charging data of the current charging cycle is uploaded to the cloud server, and in this step, charging recommendation information is determined in response to the charging request of the current vehicle. Specifically, when it is detected that a battery of a current vehicle needs to be charged or a charging intention of a user is detected, a charging request is sent to a cloud server, and charging recommendation information based on the charging request is determined. The charge request here includes, for example, the current time, the position where the current vehicle is located, and the like.
Specifically, in response to the charging request of the current vehicle, as shown in fig. 2, determining the charging recommendation information includes:
s201, when the charging request meets a preset condition, information of a charging overflow database is received.
In this step, when the charging request satisfies a predetermined condition, information of a charging overcurrent database is received. Specifically, the charging request of the vehicle is sent to a cloud server through a communication device. Wherein the predetermined condition herein may include the following:
(1) Detecting that the lowest cell voltage of the battery is lower than a set voltage threshold and the duration reaches a set time threshold;
(2) Detecting that the state of charge, SOC, of the battery is below a set threshold;
(3) Detecting that the reserved charging set by a user meets the condition;
(4) Detecting that the vehicle approaches a charging pile or a power exchange station;
when any of the above conditions is met, the cloud server screens and pertinently sends the relevant information in the stored charging overcurrent database to the vehicle end, in one embodiment, the charging overcurrent database may be screened according to the current position of the vehicle, and charging overcurrent information of the area where the vehicle is located (the area where the vehicle is located is determined according to the position where the vehicle is located, for example, may be an area where the vehicle is located, a street or a nearby area) is sent to the vehicle end to serve as a reference for whether to start charging protection later.
S202, determining a charging mode and charging protection information based on the information of the charging overflow database.
After receiving the information of the charge overflow database in the case where the charge request satisfies the predetermined condition through the above-described step S201, in this step, the charging mode and the charge protection information are determined based on the information of the charge overflow database. Specifically, according to the analysis result of the historical charging data, different charging choices are provided for the user, and meanwhile, whether the current charging is started to be protected can be judged according to the different charging choices.
Specifically, when the battery is detected to be charged or the charging intention of the user is detected, different charging modes are recommended according to the current time period recorded in the charging overcurrent database and the frequency of charging overcurrent alarm or the frequency of charging overcurrent fault in the area. For example, if the current time period and the area where the charging overcurrent alarm occurs or the frequency of the charging overcurrent fault occurs is high, charging the current time period is taken as a suboptimal choice, and a future time period with low charging overcurrent alarm and charging overcurrent fault occurrence in the charging overcurrent database is taken as the optimal choice of charging.
Further, if the user performs charging with the optimal selection, outputting the current of the charging request according to the actual value in the charging process; if the user selects to charge according to the suboptimal choice, judging whether the current charging equipment is the charging equipment with the overcharge overcurrent alarm or the overcharge overcurrent fault in the charge overcurrent database in the charging process.
Specifically, if, for example, when the number of the charging device in the current charging cycle is not in the charging overflow database, but because the frequency of occurrence of charging overflow in the current period is high, the current for the charging request is output according to the first adjustment value during the charging process, where the first adjustment value may be output according to the value of the request value x m1 (where m1 may be a value between 95% and 98%, and may be specifically selected according to the actual situation). If the number of the charging device in the current charging cycle is in the charging overcurrent database, the charging request current is output according to a second adjustment value in the charging process, wherein the second adjustment value can be output according to the value of the request value x m2 (where m2 can be a value between 85% and 90%, and can be specifically selected according to the actual situation), and in addition, the user is also prompted, for example, that charging overcurrent is easy to occur in the current time period, and charging overcurrent protection is started.
Whether the user performs charging with optimal selection or secondary selection, the charging cycle is always monitored, the work such as charging overcurrent diagnosis is performed, and the data recorded in the charging process are uploaded to the cloud server for statistics, so that a reference is provided for subsequent charging selection.
In summary, according to the embodiment of the disclosure, by monitoring the charging process of the vehicle in real time, whether the charging overcurrent phenomenon occurs in the charging process is judged, when the charging overcurrent alarm or the charging overcurrent fault occurs, corresponding fault processing measures are adopted, and meanwhile, related information when the charging overcurrent alarm or the charging overcurrent fault occurs is recorded; in addition, the embodiment of the disclosure also establishes a corresponding database according to the related information when the charging overcurrent is generated, and optimizes the subsequent charging selection and charging strategy according to the data analysis result of the cloud server; in addition, according to the embodiment of the disclosure, based on the charging intention of the user and combined with the historical charging data fed back by the cloud server, different charging selections are recommended, corresponding charging protection measures are started, and the influence on the battery caused by charging overcurrent is reduced.
According to the method and the device for monitoring the charging process of the battery in real time, the related information in the charging process is recorded, historical charging data are analyzed through the cloud server, so that corresponding protection measures can be started on the battery under different charging working conditions, and the problems that the power battery is damaged due to charging overcurrent and safety accidents are caused when the current heavy current is charged are solved.
A second embodiment of the present disclosure relates to a battery charging protection device, which includes an acquisition module, a determination module, and a charging control module that are coupled to each other, wherein:
the acquisition module is used for acquiring battery charging information and battery state information of the battery in a current charging cycle when the battery is in a preset charging mode;
the determining module is used for determining that the battery triggers a charging overcurrent alarm or a charging overcurrent fault when the actual charging current in the battery state information meets a preset condition;
the charging control module is used for controlling derating charging under the condition that the battery triggers charging overcurrent alarm; or controlling to stop charging under the condition that the battery triggers the charging overcurrent fault.
Further, the method further comprises the following steps: and the uploading module is used for uploading the charging data of the current charging cycle to a cloud server for charging data analysis and establishing a charging overflow database after the battery finishes the current charging cycle.
Further, the method further comprises the following steps: and the recommending module is used for responding to the charging request of the current vehicle and determining charging recommending information.
Further, the recommendation module includes:
a receiving unit, configured to receive information of a charging overflow database when the charging request meets a predetermined condition;
and the charging determining unit is used for determining a charging mode and charging protection information based on the information of the charging overcurrent database.
Further, determining the charging mode includes:
and recommending a corresponding charging mode according to the current time period recorded in the charging overcurrent database and the frequency of charging overcurrent alarm or the frequency of charging overcurrent fault in the area, or recommending a corresponding charging mode according to the number of the charging equipment in the current charging cycle and the frequency of charging overcurrent alarm or the frequency of charging overcurrent fault of the charging equipment recorded in the charging overcurrent database.
Further, the method further comprises the following steps:
and the charging mode judging module is used for determining whether the battery is in a preset charging mode currently, wherein the preset charging mode is one of direct current charging, alternating current charging, in-station charging and super charging.
Further, the determining module is specifically configured to trigger a charging overcurrent alarm when the actual charging current exceeds a maximum charging current allowable by the battery at the current moment by k1, and trigger a charging overcurrent fault when the actual charging current exceeds a maximum charging current allowable by the battery at the current moment by k2, where k1< k2.
According to the method and the device for monitoring the charging process of the battery in real time, the related information in the charging process is recorded, historical charging data are analyzed through the cloud server, so that corresponding protection measures can be started on the battery under different charging working conditions, and the problems that the power battery is damaged due to charging overcurrent and safety accidents are caused when the current heavy current is charged are solved.
A third embodiment of the present disclosure provides a storage medium, which is a computer-readable medium storing a computer program that, when executed by a processor, implements the method provided by the first embodiment of the present disclosure, including steps S11 to S13 as follows:
s11, when the battery is in a preset charging mode, battery charging information and battery state information of the battery in a current charging cycle are obtained;
s12, when the actual charging current in the battery state information meets a preset condition, determining that the battery triggers a charging overcurrent alarm or a charging overcurrent fault;
s13, controlling derating charge under the condition that the battery triggers a charging overcurrent alarm; or controlling to stop charging under the condition that the battery triggers the charging overcurrent fault.
Further, the computer program, when executed by a processor, implements other methods provided by the first embodiment of the present disclosure
According to the method and the device for monitoring the charging process of the battery in real time, the related information in the charging process is recorded, historical charging data are analyzed through the cloud server, so that corresponding protection measures can be started on the battery under different charging working conditions, and the problems that the power battery is damaged due to charging overcurrent and safety accidents are caused when the current heavy current is charged are solved.
A fourth embodiment of the present disclosure provides an electronic device comprising at least a memory having a computer program stored thereon and a processor that, when executing the computer program on the memory, implements the method provided by any of the embodiments of the present disclosure. Exemplary, the electronic device computer program steps are as follows S21 to S23:
s21, when the battery is in a preset charging mode, battery charging information and battery state information of the battery in a current charging cycle are obtained;
s22, when the actual charging current in the battery state information meets a preset condition, determining that the battery triggers a charging overcurrent alarm or a charging overcurrent fault;
s23, controlling derating charge under the condition that the battery triggers a charging overcurrent alarm; or controlling to stop charging under the condition that the battery triggers the charging overcurrent fault.
Further, the processor also executes the computer program in the third embodiment described above
According to the method and the device for monitoring the charging process of the battery in real time, the related information in the charging process is recorded, historical charging data are analyzed through the cloud server, so that corresponding protection measures can be started on the battery under different charging working conditions, and the problems that the power battery is damaged due to charging overcurrent and safety accidents are caused when the current heavy current is charged are solved.
The storage medium may be contained in the electronic device; or may exist alone without being incorporated into the electronic device.
The storage medium carries one or more programs that, when executed by the electronic device, cause the electronic device to: acquiring at least two internet protocol addresses; sending a node evaluation request comprising at least two internet protocol addresses to node evaluation equipment, wherein the node evaluation equipment selects an internet protocol address from the at least two internet protocol addresses and returns the internet protocol address; receiving an Internet protocol address returned by node evaluation equipment; wherein the acquired internet protocol address indicates an edge node in the content distribution network.
Alternatively, the storage medium carries one or more programs that, when executed by the electronic device, cause the electronic device to: receiving a node evaluation request comprising at least two internet protocol addresses; selecting an internet protocol address from at least two internet protocol addresses; returning the selected internet protocol address; wherein the received internet protocol address indicates an edge node in the content distribution network.
Computer program code for carrying out operations of the present disclosure may be written in one or more programming languages, including, but not limited to, an object oriented programming language such as Java, smalltalk, C ++ and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the passenger computer, partly on the passenger computer, as a stand-alone software package, partly on the passenger computer and partly on a remote computer or entirely on the remote computer or server. In the case of remote computers, the remote computer may be connected to the passenger computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (e.g., connected through the internet using an internet service provider).
It should be noted that the storage medium described in the present disclosure may be a computer readable signal medium or a computer readable storage medium, or any combination of the two. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this disclosure, a computer-readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In the present disclosure, however, the computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, with the computer-readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any storage medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a storage medium may be transmitted using any appropriate medium, including but not limited to: electrical wires, fiber optic cables, RF (radio frequency), and the like, or any suitable combination of the foregoing.
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The units involved in the embodiments of the present disclosure may be implemented by means of software, or may be implemented by means of hardware. Wherein the names of the units do not constitute a limitation of the units themselves in some cases.
The functions described above herein may be performed, at least in part, by one or more hardware logic components. For example, without limitation, exemplary types of hardware logic components that may be used include: a Field Programmable Gate Array (FPGA), an Application Specific Integrated Circuit (ASIC), an Application Specific Standard Product (ASSP), a system on a chip (SOC), a Complex Programmable Logic Device (CPLD), and the like.
In the context of this disclosure, a machine-readable medium may be a tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. The machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
The foregoing description is only of the preferred embodiments of the present disclosure and description of the principles of the technology being employed. It will be appreciated by persons skilled in the art that the scope of the disclosure referred to in this disclosure is not limited to the specific combinations of features described above, but also covers other embodiments which may be formed by any combination of features described above or equivalents thereof without departing from the spirit of the disclosure. Such as those described above, are mutually substituted with the technical features having similar functions disclosed in the present disclosure (but not limited thereto).
Moreover, although operations are depicted in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order. In certain circumstances, multitasking and parallel processing may be advantageous. Likewise, while several specific implementation details are included in the above discussion, these should not be construed as limiting the scope of the present disclosure. Certain features that are described in the context of separate embodiments can also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment can also be implemented in multiple embodiments separately or in any suitable subcombination.
Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are example forms of implementing the claims.
While various embodiments of the present disclosure have been described in detail, the present disclosure is not limited to these specific embodiments, and various modifications and embodiments can be made by those skilled in the art on the basis of the concepts of the present disclosure, which modifications and modifications should fall within the scope of the claims of the present disclosure.

Claims (10)

1. A method of protecting battery charging, comprising:
when the battery is in a preset charging mode, battery charging information and battery state information of the battery in a current charging cycle are obtained;
when the actual charging current in the battery state information meets a preset condition, determining that the battery triggers a charging overcurrent alarm or a charging overcurrent fault;
controlling derating charge under the condition that the battery triggers a charging overcurrent alarm; or controlling to stop charging under the condition that the battery triggers the charging overcurrent fault.
2. The protection method according to claim 1, further comprising: and after the battery finishes the current charging cycle, uploading charging data of the current charging cycle to a cloud server for charging data analysis and establishing a charging overflow database.
3. The protection method according to claim 2, further comprising: in response to a charging request of a current vehicle, charging recommendation information is determined.
4. The protection method according to claim 3, wherein the determining the charging recommendation information in response to the charging request of the current vehicle includes:
receiving information of a charging overflow database when the charging request meets a preset condition;
and determining a charging mode and charging protection information based on the information of the charging overflow database.
5. The method of claim 4, wherein determining the charging mode comprises:
and recommending a corresponding charging mode according to the current time period recorded in the charging overcurrent database and the frequency of charging overcurrent alarm or the frequency of charging overcurrent fault in the area, or recommending a corresponding charging mode according to the number of the charging equipment in the current charging cycle and the frequency of charging overcurrent alarm or the frequency of charging overcurrent fault of the charging equipment recorded in the charging overcurrent database.
6. The protection method according to claim 1, wherein before acquiring battery charging information and battery status information of the battery in a current charging cycle when the battery is in a predetermined charging mode, further comprising:
it is determined whether the battery is currently in a predetermined charging mode, the predetermined charging mode being one of direct current charging, alternating current charging, in-station charging, and super charging.
7. The protection method according to claim 1, wherein when the actual charging current in the battery status information meets a predetermined condition, it is determined that the battery triggers a charging overcurrent alarm or a charging overcurrent fault, when the actual charging current exceeds a maximum charging current k1 allowed by the battery at a current time, the charging overcurrent alarm is triggered, and when the actual charging current exceeds a maximum charging current k2 allowed by the battery at a current time, the charging overcurrent fault is triggered, where k1< k2.
8. A battery charging protection device, comprising:
the acquisition module is used for acquiring battery charging information and battery state information of the battery in a current charging cycle when the battery is in a preset charging mode;
the determining module is used for determining that the battery triggers a charging overcurrent alarm or a charging overcurrent fault when the actual charging current in the battery state information meets a preset condition;
the charging control module is used for controlling derating charging under the condition that the battery triggers a charging overcurrent alarm; or controlling to stop charging under the condition that the battery triggers the charging overcurrent fault.
9. A storage medium storing a computer program, which when executed by a processor performs the steps of the method according to any one of claims 1 to 7.
10. An electronic device comprising at least a memory, a processor, the memory having stored thereon a computer program, characterized in that the processor, when executing the computer program on the memory, implements the steps of the method according to any of claims 1 to 7.
CN202310747079.3A 2023-06-21 2023-06-21 Battery charging protection method and device, storage medium and electronic equipment Pending CN116552272A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117526529A (en) * 2024-01-05 2024-02-06 上海泰矽微电子有限公司 Charging control method and device, electronic equipment and medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117526529A (en) * 2024-01-05 2024-02-06 上海泰矽微电子有限公司 Charging control method and device, electronic equipment and medium
CN117526529B (en) * 2024-01-05 2024-03-08 上海泰矽微电子有限公司 Charging control method and device, electronic equipment and medium

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