CN115027295A - Method and device for generating and acquiring battery pack examination report of automobile - Google Patents

Method and device for generating and acquiring battery pack examination report of automobile Download PDF

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Publication number
CN115027295A
CN115027295A CN202210678808.XA CN202210678808A CN115027295A CN 115027295 A CN115027295 A CN 115027295A CN 202210678808 A CN202210678808 A CN 202210678808A CN 115027295 A CN115027295 A CN 115027295A
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battery
charging
physical examination
data
terminal
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赵岩飞
康会敏
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Blue Valley Smart Beijing Energy Technology Co Ltd
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Blue Valley Smart Beijing Energy Technology Co Ltd
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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
    • B60L53/10—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 characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • 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
    • B60L53/66—Data transfer between charging stations and vehicles
    • B60L53/665—Methods related to measuring, billing or payment
    • 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
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles

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  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The invention provides a method and a device for generating and acquiring a battery pack examination report of an automobile. Wherein the method comprises the following steps: receiving a user physical examination request sent by a terminal, wherein the user physical examination request carries vehicle information and direct current charging pile information; receiving charging physical examination data which are sent by the direct current charging pile in real time in a battery physical examination mode in a charging period after the terminal sends the user physical examination request; analyzing the charging physical examination data according to the user physical examination request to obtain complete charging data; calculating the health index of the battery pack according to the complete charging data to obtain a calculation result corresponding to the health index; and generating a battery examination report according to the calculation result corresponding to the health index. According to the scheme, real-time communication between the direct current charging pile and the cloud terminal in the battery physical examination mode can be realized, and the cloud terminal can realize physical examination on a single battery pack through transmission and processing of data of the single battery pack and the corresponding direct current charging pile.

Description

Method and device for generating and acquiring battery pack examination report of automobile
Technical Field
The invention relates to the technical field of new energy automobiles, and further relates to a method and a device for generating and acquiring a battery pack examination report of an automobile.
Background
The new energy automobile continues a journey through the battery, and the health condition of battery is especially important, for the health condition of better assurance vehicle battery package, needs carry out the physical examination to the battery package to service behavior and the health condition to the battery package evaluate.
The existing direct current charging pile either does not have the capability of communicating with the cloud end, or has a long communication period with the cloud end, real-time transmission of data cannot be achieved, statistics and analysis of data can be carried out only aiming at the battery pack of the same type, and the data of the transmission cloud end are not enough to support physical examination of a single battery pack.
Disclosure of Invention
The invention aims to provide a method and a device for generating and acquiring a battery pack examination report of an automobile. The real-time communication between the direct-current charging pile and the cloud side under the battery physical examination mode can be realized, and the cloud side realizes the physical examination aiming at a single battery pack through the transmission and the processing of data of the single battery pack and the corresponding direct-current charging pile.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a method for generating a battery pack examination report of an automobile is applied to a cloud end, and comprises the following steps:
receiving a user physical examination request sent by a terminal, wherein the user physical examination request carries vehicle information and direct current charging pile information;
receiving charging physical examination data which are sent by the direct current charging pile in real time in a battery physical examination mode in a charging period after the terminal sends the user physical examination request;
analyzing the charging physical examination data according to the user physical examination request to obtain complete charging data;
calculating the health index of the battery pack according to the complete charging data to obtain a calculation result corresponding to the health index;
and generating a battery examination report according to the calculation result corresponding to the health index.
Optionally, the receiving the user physical examination request sent by the terminal includes:
and receiving a user physical examination request sent by the terminal through a short message or a target application program.
Optionally, the receiving of the charging physical examination data sent by the dc charging pile in real time in the battery physical examination mode in the charging period after the terminal sends the user physical examination request includes:
receiving offline charging physical examination data sent by the direct current charging pile;
the offline charging physical examination data are automatically sent after the direct current charging pile is stored to the network communication signal through the local data storage function to restore the connection when the communication network signal is disconnected in the transmission process of the charging physical examination data.
Optionally, the analyzing the physical examination data of the electric charge to obtain complete electric charge data includes:
and sequencing the charging physical examination data and the offline charging physical examination data sent by the direct current charging pile according to the time sequence, and then analyzing to obtain complete charging data.
Optionally, the calculating a health index of the battery pack according to the complete charging data to obtain a calculation result corresponding to the health index includes:
calculating the difference value between the single battery voltage in the complete charging data when the charging is finished and the single battery voltage when the charging is started;
counting all battery temperature values in the complete charging data in a charging time period, and taking the highest value of all the battery temperature values as the highest battery temperature value;
counting the current value of the battery in the charging period, and generating a battery current change curve corresponding to the current value;
counting the voltage value of the battery in the charging period, and generating a battery voltage change curve corresponding to the voltage value;
integrating the current value in the charging period to obtain the capacity value of the battery actually charged in the charging period;
obtaining the capacity value of the battery which should be theoretically charged in the charging period by multiplying the nominal capacity value of the battery by the difference value of the percentage of the remaining capacity of the battery at the end of charging minus the percentage of the remaining capacity of the battery at the beginning of charging; and
the battery health degree is obtained by dividing the actual charged battery capacity value in the charging period by the theoretically charged battery capacity value multiplied by one hundred percent.
Optionally, generating a battery check report according to a calculation result corresponding to the health indicator includes:
and summarizing the difference value between the voltage of the battery monomer in the complete charging data and the voltage of the battery monomer at the beginning of charging, the highest temperature value of the battery, a battery current change curve, a battery voltage change curve, the capacity value of the battery actually charged in the charging period, the capacity value of the battery theoretically charged in the charging period and the health degree of the battery in the charging period to generate a battery physical examination report in a document form.
The invention also provides a method for acquiring the battery pack examination report of the automobile, which is applied to a terminal and comprises the following steps:
sending a user physical examination request to a cloud;
downloading a battery check report from a cloud terminal, wherein the battery check report is charging check data which is sent by the cloud terminal in real time in a battery check mode within a charging period after receiving a user check request sent by a terminal, and the charging check data is analyzed to obtain complete charging data; calculating the health index of the battery pack according to the complete charging data to obtain a calculation result corresponding to the health index; and generating according to the calculation result corresponding to the health index.
The invention also provides a device for generating the inspection report of the battery pack body of the automobile, which is applied to a cloud end, and the device comprises:
the receiving and sending module is used for receiving a user physical examination request sent by a terminal, wherein the user physical examination request carries vehicle information and direct-current charging pile information; receiving charging physical examination data which are sent by the direct current charging pile in real time in a battery physical examination mode in a charging period after the terminal sends the user physical examination request;
the processing module is used for analyzing and processing the charging physical examination data according to the user physical examination request to obtain complete charging data;
calculating the health index of the battery pack according to the complete charging data to obtain a calculation result corresponding to the health index;
and generating a battery examination report according to the calculation result corresponding to the health index.
The invention also provides a device for acquiring the battery pack examination report of the automobile, which is applied to a terminal and comprises:
the receiving and sending module is used for sending a user physical examination request to the cloud;
the processing module is used for downloading a battery check report from a cloud terminal, wherein the battery check report is charging check data which is sent by the cloud terminal in real time in a battery check mode within a charging period after receiving a user check request sent by a terminal, and the charging check data is analyzed to obtain complete charging data; calculating the health index of the battery pack according to the complete charging data to obtain a calculation result corresponding to the health index; and generating according to the calculation result corresponding to the health index.
The present invention also provides a computer-readable storage medium comprising: storing instructions that, when executed on a computer, cause the computer to perform the method as described above.
The scheme of the invention at least comprises the following beneficial effects:
according to the scheme, the user physical examination request sent by the terminal is received, and the vehicle information and the direct current charging pile information are carried in the user physical examination request; receiving charging physical examination data which are sent by the direct current charging pile in real time in a battery physical examination mode in a charging period after the terminal sends the user physical examination request; analyzing the charging physical examination data according to the user physical examination request to obtain complete charging data; calculating the health index of the battery pack according to the complete charging data to obtain a calculation result corresponding to the health index; and generating a battery examination report according to the calculation result corresponding to the health index. The real-time communication between the direct-current charging pile and the cloud side under the battery physical examination mode can be realized, and the cloud side realizes the physical examination aiming at a single battery pack through the transmission and the processing of data of the single battery pack and the corresponding direct-current charging pile.
Drawings
FIG. 1 is a flow chart illustrating a method for generating a battery pack health report of an automobile according to the present invention;
FIG. 2 is a system diagram of a method for generating a battery pack health report for an automobile according to the present invention;
FIG. 3 is a schematic flow chart of a method for obtaining a battery pack inspection report of an automobile according to the present invention;
fig. 4 is a block diagram schematically showing a device for generating a battery pack inspection report of an automobile according to the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
As shown in fig. 1, an embodiment of the present invention provides a method for generating a battery pack health report of an automobile, which is applied to a cloud, and the method includes:
step 11, receiving a user physical examination request sent by a terminal, wherein the user physical examination request carries vehicle information and direct current charging pile information;
step 12, receiving charging physical examination data which is sent by the direct current charging pile in real time in a battery physical examination mode in a charging period after the terminal sends the user physical examination request;
step 13, analyzing the charging physical examination data according to the user physical examination request to obtain complete charging data;
step 14, calculating a health index of the battery pack according to the complete charging data to obtain a calculation result corresponding to the health index;
and step 15, generating a battery examination report according to the calculation result corresponding to the health index.
Wherein the charge physical examination data includes: battery physical examination data and historical charging data;
the vehicle information includes: information such as VIN (Vehicle Identification Number) of the Vehicle to be inspected, battery code, and the like;
the direct current charging pile information comprises information such as a direct current charging pile code and the like;
the charging period refers to the time taken from the start of charging to the end of charging.
It should be noted that the intelligent control device is installed on the dc charging pile, and a battery physical examination mode and a common charging mode are added to the dc charging pile, where the transmission rate of the charging physical examination data in the battery physical examination mode is in milliseconds, and the dc charging pile can realize real-time communication with the cloud in the battery physical examination mode.
In the embodiment of the invention, the communication speed between the direct current charging pile and the cloud platform in the battery check mode is increased by adding the battery check mode, so that the charging check data are transmitted to the cloud terminal in real time, after the cloud terminal receives the charging check data, the calculation result corresponding to the health index of the battery pack is calculated through the battery pack check algorithm of the direct current charging protocol, and finally, a battery check report is generated. The real-time communication between the direct current charging pile and the cloud side under the battery physical examination mode can be realized, and the cloud side realizes physical examination aiming at a single battery pack through transmission and processing of data of the single battery pack and the corresponding direct current charging pile.
In an optional embodiment of the present invention, step 11 may include:
and step 111, receiving a user physical examination request sent by the terminal through a short message or a target application program.
In this embodiment, a user may perform switching between a battery physical examination mode and a general charging mode through a physical key on the dc charging pile, or position the dc charging pile using an APP (Application, target Application), and perform switching between the battery physical examination mode and the general charging mode through a virtual key;
when the physical key is used, a user needs to send information such as VIN, battery codes and direct current charging pile codes of the vehicle to be subjected to physical examination to the cloud end through short messages in advance;
when the APP virtual key is used, a user needs to send information such as VIN, battery codes and direct current charging pile codes of a vehicle to be subjected to physical examination to the cloud side through the APP in advance; so that the data processing can be conveniently carried out at the follow-up cloud end.
In another optional embodiment of the present invention, step 12 may include:
step 121, receiving offline charging physical examination data sent by the direct current charging pile;
the offline charging physical examination data are automatically sent after the direct current charging pile is stored to the network communication signal through the local data storage function and the connection is recovered when the communication network signal is disconnected in the transmission process of the charging physical examination data.
In the embodiment, in the transmission process of the charging physical examination data, when the communication network signal is disconnected, the direct-current charging pile stores the offline charging physical examination data through the local data storage function, and after the communication network signal is restored and connected, the direct-current charging pile automatically reissues the offline charging physical examination data to the cloud, so that data loss and missing are avoided, and the accuracy of the data in the physical examination report is ensured.
In another optional embodiment of the present invention, in step 13, the analyzing the physical examination data of the electric charge to obtain complete electric charge data may include:
and 131, after the connection between the charging physical examination data sent by the direct current charging pile and the communication network signal is restored, the charging physical examination data sent by the direct current charging pile are sequenced according to the time sequence, and then are analyzed to obtain complete charging data.
In this embodiment, the high in the clouds can be with after communication network signal disconnection, resume again to connect, and the automatic health examination data that send additional of direct current charging pile, when normally being connected with communication network signal, the health examination data that charge of real-time conveying carries out the analysis processing after sequencing according to the precedence order of time, obtains complete charging data. Therefore, the cloud end synthesizes the received charging physical examination data to form a complete data packet of all the charging physical examination data in the charging period, and the data packet is analyzed, so that subsequent calculation can be facilitated.
In another alternative embodiment of the present invention, step 14 may include:
step 141, calculating a difference value between the cell voltage in the complete charging data when charging is finished and the cell voltage when charging is started;
step 142, counting all battery temperature values in the complete charging data in a charging period, and taking the highest value of all the battery temperature values as the highest battery temperature value;
step 143, counting the current value of the battery in the charging period, and generating a battery current change curve corresponding to the current value;
specifically, the current value can be sampled within a charging period by taking 250 milliseconds as a sampling period to obtain a current sampling value, and all the current sampling values within the charging period are sequentially sequenced according to the time sequence to generate a current change curve;
step 144, counting voltage values of the battery in a charging period, and generating a battery voltage variation curve corresponding to the voltage values;
specifically, the voltage value may be sampled in a charging period with 250 milliseconds as a sampling period to obtain a voltage sampling value, and all the voltage sampling values in the charging period are sequentially ordered according to a time sequence to generate a voltage variation curve;
step 145, integrating the current value in the charging period to obtain the capacity value of the battery actually charged in the charging period;
specifically, the calculation formula of the capacity value actually charged into the battery in the charging period is as follows:
Figure BDA0003695612700000071
wherein, Q is 1 For actually charging the battery in the charging periodCapacity value, t0 is the time when charging starts in the battery check-up mode, t1 is the time when charging ends in the battery check-up mode, I t The current value of the battery in the charging period is shown as eta, the temperature compensation coefficient is shown as eta, and dt is the integral sign.
Step 146, obtaining the theoretical capacity value of the battery to be charged in the charging period by multiplying the nominal capacity value of the battery by the percentage of the remaining capacity of the battery at the end of charging and subtracting the percentage of the remaining capacity of the battery at the beginning of charging; and
specifically, the calculation formula of the capacity value theoretically to be charged in the battery in the charging period is as follows:
ΔSOC＝SOC1-SOC0
Q 2 ＝Q 0 ×ΔSOC
wherein, said Q 2 For the value of the capacity of the battery, said Q, which should theoretically be charged during the charging period 0 The Δ SOC is a difference between a battery remaining capacity percentage at the end of charging minus a battery remaining capacity percentage at the start of charging, the SOC1 is a battery remaining capacity percentage at the end of charging, and the SOC0 is a battery remaining capacity percentage at the start of charging, which are nominal capacity values of the battery.
And 147, dividing the actually charged battery capacity value in the charging time period by the theoretically charged battery capacity value multiplied by one hundred percent to obtain the battery health degree.
Specifically, the calculation formula of the battery health degree is as follows:
SOH≈Q 1 Q 2 ×100％
wherein the SOH is the battery health, and Q 1 For actually charging the battery capacity value during the charging period, said Q 2 The battery capacity value should be theoretically charged for the charging period.
In this embodiment, the cloud calculates the health index of the battery pack through a battery pack check algorithm of the dc charging protocol, and obtains a calculation result corresponding to the health index. Therefore, the calculation is simple and convenient, and the efficiency is high.
In another alternative embodiment of the present invention, step 15 may include:
and 151, summarizing the difference value between the cell voltage in the complete charging data and the cell voltage at the beginning of charging, the highest temperature value of the battery, the change curve of the battery current, the change curve of the battery voltage, the actual charged battery capacity value in the charging period, the theoretically charged battery capacity value in the charging period and the battery health degree, and generating a battery physical examination report in a document form.
It should be noted that the cloud end may issue the battery health check report to a preset address of the cloud end and generate a website for a user to download, or issue the battery health check report to a target application program for the user to download.
In this embodiment, a battery examination report is generated according to the calculation result corresponding to the health index, so that a convenient and direct evaluation basis can be provided for a user.
As shown in fig. 2, in another alternative embodiment of the present invention, the system for generating and acquiring a battery pack examination report of an automobile may include: the system comprises a direct current charging pile, a terminal, a cloud end in communication connection with the direct current charging pile and the terminal, and a battery detection server in communication connection with the cloud end;
the specific process of the method for generating and acquiring the battery pack examination report of the automobile may include: the user uses the SOC (State Of Charge) Of the automobile battery pack to be less than 30% so as to ensure that the physical examination data is valid;
after a user drives an automobile to a direct current charging pile, a battery check-up mode is switched to through a physical key of the direct current charging pile or a virtual key of an APP, and then a user check-up request is sent to a cloud end through a short message or the APP by using a terminal, wherein the user check-up request carries information such as a vehicle identification code, a battery code and a direct current charging pile code of the automobile to be checked up;
after receiving a user physical examination request sent by the terminal, the cloud end can determine which automobile corresponds to which direct-current charging pile so as to ensure that battery physical examination reports correspond to battery packs one to one;
the direct current fills electric pile and sends the physical examination data that charges in the period of charging to the high in the clouds in real time under the physical examination mode, the physical examination data that charges include: battery pack inspection data and historical charging data;
if communication network signal interruption occurs in the sending process of the charging physical examination data, the direct current charging pile stores the charging physical examination data through a local data storage function, and after the communication network signal is restored to be connected, the direct current charging pile automatically sends the charging physical examination data to the cloud end;
the cloud end receives charging physical examination data which are sent by the direct current charging pile in real time in a charging period in a battery physical examination mode and charging physical examination data which are automatically reissued by the direct current charging pile, and sorts the charging physical examination data which are sent by the direct current charging pile in real time and the charging physical examination data which are automatically sent by the direct current charging pile according to the time sequence, and then carries out analysis processing to obtain complete charging data;
the cloud calculates the difference value between the voltage of the battery monomer in the complete charging data when the charging is finished and the voltage of the battery monomer when the charging is started;
the cloud end counts all battery temperature values in the complete charging data in a charging time period, and takes the highest value of all the battery temperature values as the highest battery temperature value;
the cloud end samples a current value in a charging period by taking 250 milliseconds as a sampling period to obtain a current sampling value, and sorts all the current sampling values in the charging period in sequence according to the time sequence to generate a current change curve;
the cloud terminal samples the voltage value in a charging period by taking 250 milliseconds as a sampling period to obtain a voltage sampling value, and sorts all the voltage sampling values in the charging period in sequence according to the time sequence to generate a voltage change curve;
cloud pass
Figure BDA0003695612700000091
Calculating a value of a capacity actually charged to the battery during a charging period, wherein Q is 1 For actually charging the battery capacity value in the charging period, thet0 is the time of the start of charging in the battery check mode, t1 is the time of the end of charging in the battery check mode, and I t And the current value of the battery in the charging period is represented by eta, which is a temperature compensation coefficient, and dt is an integral sign.
Cloud pass Δ SOC (SOC 1-SOC0, Q) 2 ＝Q 0 Calculating a value of a capacity of a battery to be theoretically charged during a charging period by the x Δ SOC, wherein Q is 2 For the value of the capacity of the battery, said Q, which should theoretically be charged during the charging period 0 The Δ SOC is a difference between a battery remaining capacity percentage at the end of charging minus a battery remaining capacity percentage at the start of charging, the SOC1 is a battery remaining capacity percentage at the end of charging, and the SOC0 is a battery remaining capacity percentage at the start of charging, which are nominal capacity values of the battery.
Cloud passes through SOH ≈ Q 1 Q 2 X 100% calculated Battery health, wherein SOH is Battery health, Q 1 For actually charging the battery capacity value in the charging period, Q 2 The battery capacity value should be theoretically charged for the charging period.
The cloud collects the difference between the cell voltage in the complete charging data and the cell voltage at the beginning of charging, the highest temperature value of the battery, the current variation curve of the battery, the voltage variation curve of the battery, the actual charging capacity value in the charging period, the theoretical charging capacity value in the charging period and the health degree of the battery, generates a document-form battery check report, sends the battery check report to a battery detection server, generates a URL (Uniform Resource Locator) link, and sends the URL link to a terminal of a user or sends the URL link to an account of the user through the APP.
The user can download or look up the battery physical examination report on line through a URL link or APP in the short message according to the requirement.
In the embodiment of the invention, a user can select the battery check-up mode or the common charging mode as required, the data transmission speed is increased in the battery check-up mode, the real-time communication between the direct current charging pile and the cloud terminal in the battery check-up mode can be realized, and the cloud terminal realizes the check-up for a single battery pack by transmitting and processing the data of the single battery pack and the corresponding direct current charging pile.
As shown in fig. 3, an embodiment of the present invention further provides a method for acquiring a battery pack examination report of an automobile, which is applied to a terminal, and the method includes:
step 31, sending a physical examination request of the user to a cloud;
step 32, downloading a battery check report from a cloud, wherein the battery check report is charging check data which is sent by the cloud in real time in a battery check mode within a charging period after receiving a user check request sent by a terminal, and analyzing the charging check data to obtain complete charging data; calculating the health index of the battery pack according to the complete charging data to obtain a calculation result corresponding to the health index; and generating according to the calculation result corresponding to the health index.
As shown in fig. 4, an embodiment of the present invention further provides an apparatus 40 for generating a battery pack inspection report of an automobile, which is applied to a cloud, where the apparatus 40 includes:
the receiving and sending module 41 is configured to receive a user physical examination request sent by a terminal, where the user physical examination request carries vehicle information and direct-current charging pile information; receiving charging physical examination data which are sent by the direct current charging pile in real time in a battery physical examination mode in a charging period after the terminal sends the user physical examination request;
the processing module 42 is configured to analyze the charging health examination data according to the user health examination request to obtain complete charging data;
calculating the health index of the battery pack according to the complete charging data to obtain a calculation result corresponding to the health index;
and generating a battery examination report according to the calculation result corresponding to the health index.
Optionally, the receiving the user physical examination request sent by the terminal includes:
and receiving a user physical examination request sent by the terminal through a short message or a target application program.
Optionally, the receiving of the charging physical examination data sent by the dc charging pile in real time in the battery physical examination mode in the charging period after the terminal sends the user physical examination request includes:
receiving offline charging physical examination data sent by the direct current charging pile;
the offline charging physical examination data are automatically sent after the direct current charging pile is stored to the network communication signal through the local data storage function to restore the connection when the communication network signal is disconnected in the transmission process of the charging physical examination data.
Optionally, the analyzing the physical examination data of the electric charge to obtain complete electric charge data includes:
and sequencing the charging physical examination data and the offline charging physical examination data sent by the direct current charging pile according to the time sequence, and then analyzing to obtain complete charging data.
Optionally, calculating a health index of the battery pack according to the complete charging data to obtain a calculation result corresponding to the health index, including:
calculating the difference value between the voltage of the battery monomer in the complete charging data when the charging is finished and the voltage of the battery monomer when the charging is started;
counting all battery temperature values in the complete charging data in a charging time period, and taking the highest value of all the battery temperature values as the highest battery temperature value;
counting the current value of the battery in the charging period, and generating a battery current change curve corresponding to the current value;
counting the voltage value of the battery in the charging period, and generating a battery voltage change curve corresponding to the voltage value;
integrating the current value in the charging period to obtain the capacity value of the battery actually charged in the charging period;
obtaining the capacity value of the battery which should be theoretically charged in the charging period by multiplying the nominal capacity value of the battery by the difference value of the percentage of the residual capacity of the battery at the end of charging and subtracting the percentage of the residual capacity of the battery at the beginning of charging; and
the battery health degree is obtained by dividing the actual charged battery capacity value by the theoretically charged battery capacity value multiplied by one hundred percent in the charging period.
Optionally, generating a battery health check report according to the calculation result corresponding to the health indicator includes:
and summarizing the difference value between the voltage of the battery monomer in the complete charging data and the voltage of the battery monomer at the beginning of charging, the highest temperature value of the battery, the current change curve of the battery, the voltage change curve of the battery, the actual capacity value of the battery charged in the charging period, the capacity value of the battery theoretically charged in the charging period and the health degree of the battery when the charging period is finished, and generating a battery physical examination report in a document form.
It should be noted that the apparatus is an apparatus corresponding to the above method, and all the implementations in the above method embodiment are applicable to the embodiment of the apparatus, and the same technical effects can be achieved.
The embodiment of the invention also provides a device for acquiring the battery pack examination report of the automobile, which is applied to a terminal and comprises:
the receiving and sending module is used for sending a user physical examination request to the cloud;
the processing module is used for downloading a battery check report from a cloud terminal, wherein the battery check report is charging check data which is sent by the cloud terminal in real time in a battery check mode within a charging period after receiving a user check request sent by a terminal, and the charging check data is analyzed to obtain complete charging data; calculating the health index of the battery pack according to the complete charging data to obtain a calculation result corresponding to the health index; and generating according to the calculation result corresponding to the health index.
It should be noted that the apparatus is an apparatus corresponding to the above method, and all the implementations in the above method embodiment are applicable to the embodiment of the apparatus, and the same technical effects can be achieved.
Embodiments of the present invention also provide a computer-readable storage medium, including: storing instructions that, when executed on a computer, cause the computer to perform the method as described above. All the implementation manners in the above method embodiment are applicable to this embodiment, and the same technical effect can be achieved.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one type of logical functional division, and other divisions may be realized in practice, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
Furthermore, it is to be noted that in the device and method of the invention, it is obvious that the individual components or steps can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of performing the series of processes described above may naturally be performed chronologically in the order described, but need not necessarily be performed chronologically, and some steps may be performed in parallel or independently of each other. It will be understood by those skilled in the art that all or any of the steps or elements of the method and apparatus of the present invention may be implemented in any computing device (including processors, storage media, etc.) or network of computing devices, in hardware, firmware, software, or any combination thereof, which can be implemented by those skilled in the art using their basic programming skills after reading the description of the present invention.
Thus, the objects of the invention may also be achieved by running a program or a set of programs on any computing device. The computing device may be a well-known general purpose device. The object of the invention is thus also achieved solely by providing a program product containing program code for implementing the method or device. That is, such a program product also constitutes the present invention, and a storage medium storing such a program product also constitutes the present invention. It is to be understood that the storage medium may be any known storage medium or any storage medium developed in the future. It is also noted that in the apparatus and method of the present invention, it is apparent that each component or step can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of executing the series of processes described above may naturally be executed chronologically in the order described, but need not necessarily be executed chronologically. Some steps may be performed in parallel or independently of each other.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (10)

1. A method for generating a battery pack examination report of an automobile is applied to a cloud, and comprises the following steps:
receiving a user physical examination request sent by a terminal, wherein the user physical examination request carries vehicle information and direct current charging pile information;
receiving charging physical examination data which are sent by the direct current charging pile in real time in a battery physical examination mode in a charging period after the terminal sends the user physical examination request;
analyzing the charging physical examination data according to the user physical examination request to obtain complete charging data;
calculating the health index of the battery pack according to the complete charging data to obtain a calculation result corresponding to the health index;
and generating a battery examination report according to the calculation result corresponding to the health index.
2. The method for generating a battery pack health check report of an automobile as set forth in claim 1, wherein the receiving of the user health check request transmitted from the terminal includes:
and receiving a user physical examination request sent by the terminal through a short message or a target application program.
3. The method of claim 1, wherein the step of receiving the physical examination data of the dc charging post transmitted in real time in the battery physical examination mode in the charging period after the terminal transmits the user physical examination request comprises:
receiving offline charging physical examination data sent by the direct current charging pile;
the offline charging physical examination data are automatically sent after the direct current charging pile is stored to the network communication signal through the local data storage function to restore the connection when the communication network signal is disconnected in the transmission process of the charging physical examination data.
4. The method of claim 3, wherein analyzing the charge check data to obtain complete charge data includes:
and sequencing the charging physical examination data and the offline charging physical examination data sent by the direct current charging pile according to the time sequence, and then analyzing to obtain complete charging data.
5. The method of claim 1, wherein calculating a health indicator of a battery pack according to the complete charging data to obtain a calculation result corresponding to the health indicator comprises:
calculating the difference value between the voltage of the battery monomer in the complete charging data when the charging is finished and the voltage of the battery monomer when the charging is started;
counting all battery temperature values in the complete charging data in a charging time period, and taking the highest value of all the battery temperature values as the highest battery temperature value;
counting the current value of the battery in the charging period, and generating a battery current change curve corresponding to the current value;
counting the voltage value of the battery in the charging period, and generating a battery voltage change curve corresponding to the voltage value;
integrating the current value in the charging period to obtain the capacity value of the battery actually charged in the charging period;
obtaining the capacity value of the battery which should be theoretically charged in the charging period by multiplying the nominal capacity value of the battery by the difference value of the percentage of the residual capacity of the battery at the end of charging and subtracting the percentage of the residual capacity of the battery at the beginning of charging; and
the battery health degree is obtained by dividing the actual charged battery capacity value in the charging period by the theoretically charged battery capacity value multiplied by one hundred percent.
6. The method of claim 5, wherein generating the battery health report according to the calculation result corresponding to the health indicator comprises:
and summarizing the difference value between the voltage of the battery monomer in the complete charging data and the voltage of the battery monomer at the beginning of charging, the highest temperature value of the battery, the current change curve of the battery, the voltage change curve of the battery, the actual capacity value of the battery charged in the charging period, the capacity value of the battery theoretically charged in the charging period and the health degree of the battery when the charging period is finished, and generating a battery physical examination report in a document form.
7. A method for acquiring a battery pack examination report of an automobile is applied to a terminal, and comprises the following steps:
sending a user physical examination request to a cloud;
downloading a battery check report from a cloud terminal, wherein the battery check report is charging check data which is sent by the cloud terminal in real time in a battery check mode within a charging period after receiving a user check request sent by a terminal, and the charging check data is analyzed to obtain complete charging data; calculating the health index of the battery pack according to the complete charging data to obtain a calculation result corresponding to the health index; and generating according to the calculation result corresponding to the health index.
8. The utility model provides a generation device of report is examined to battery inclusion of car which is applied to the high in the clouds, the device includes:
the receiving and sending module is used for receiving a user physical examination request sent by a terminal, wherein the user physical examination request carries vehicle information and direct-current charging pile information; receiving charging physical examination data which are sent by the direct current charging pile in real time in a battery physical examination mode in a charging period after the terminal sends the user physical examination request;
the processing module is used for analyzing and processing the charging physical examination data according to the user physical examination request to obtain complete charging data;
calculating the health index of the battery pack according to the complete charging data to obtain a calculation result corresponding to the health index;
and generating a battery examination report according to the calculation result corresponding to the health index.
9. An apparatus for acquiring a battery pack examination report of an automobile, applied to a terminal, the apparatus comprising:
the receiving and sending module is used for sending a user physical examination request to the cloud;
the processing module is used for downloading a battery check report from a cloud terminal, wherein the battery check report is charging check data which is sent by the cloud terminal in real time in a battery check mode within a charging period after receiving a user check request sent by a terminal, and the charging check data is analyzed to obtain complete charging data; calculating the health index of the battery pack according to the complete charging data to obtain a calculation result corresponding to the health index; and generating according to the calculation result corresponding to the health index.
10. A computer-readable storage medium, comprising: storing instructions which, when executed on a computer, cause the computer to perform the method of any of claims 1 to 6 or the method of claim 7.
CN202210678808.XA 2022-06-15 2022-06-15 Method and device for generating and acquiring battery pack examination report of automobile Pending CN115027295A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116224128A (en) * 2023-05-06 2023-06-06 广汽埃安新能源汽车股份有限公司 Method and device for detecting capacity health state of battery

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116224128A (en) * 2023-05-06 2023-06-06 广汽埃安新能源汽车股份有限公司 Method and device for detecting capacity health state of battery
CN116224128B (en) * 2023-05-06 2023-08-01 广汽埃安新能源汽车股份有限公司 Method and device for detecting capacity health state of battery

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