CN113910977B - System and method for acquiring BMS data of electric automobile - Google Patents

System and method for acquiring BMS data of electric automobile Download PDF

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Publication number
CN113910977B
CN113910977B CN202111229981.3A CN202111229981A CN113910977B CN 113910977 B CN113910977 B CN 113910977B CN 202111229981 A CN202111229981 A CN 202111229981A CN 113910977 B CN113910977 B CN 113910977B
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Prior art keywords
vehicle
bms
data
interface device
communication interface
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CN113910977A (en
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唐新光
沈小杰
姜楚
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Shenzhen Daotong Hechuang Digital Energy Co ltd
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Shenzhen Daotong Hechuang Digital Energy 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
    • 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
    • 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
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
    • 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
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/545—Temperature
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/547—Voltage
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/549—Current
    • 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
    • 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
    • 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
    • Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
    • Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
    • Y04S30/12—Remote or cooperative charging

Abstract

The invention discloses a system and a method for acquiring BMS data of an electric automobile, and relates to the field of electric automobiles. The system comprises: the vehicle-mounted communication interface device, the vehicle-mounted diagnosis system diagnosis seat and the cloud server; wherein: the vehicle-mounted communication interface device acquires BMS original data of a target vehicle type through the vehicle-mounted diagnosis system diagnosis seat according to a vehicle type system parameter configuration table; the vehicle-mounted communication interface device uploads the acquired BMS original data of the target vehicle type to a cloud server through a preset communication network; and the cloud server analyzes the received BMS original data, and determines the current health condition of the battery according to the analyzed data. According to the embodiment of the invention, the problems that a charging pile manufacturer is difficult to obtain BMS original data from the outside and BMS original data of different vehicle types cannot be obtained can be solved, the coverage of the vehicle types is increased, meanwhile, the battery health state can be analyzed, predicted and diagnosed, and the comprehensive performance of the battery is improved.

Description

System and method for acquiring BMS data of electric automobile
Technical Field
The invention relates to the field of electric automobiles, in particular to a system and a method for acquiring BMS data of an electric automobile.
Background
With the increasing awareness of global environmental protection, more and more people choose electric vehicles (Electric Vehicles, EV) when buying the vehicles, which makes electric vehicles more and more popular.
The core component of the electric automobile is a power battery, and in order to effectively protect the power battery, most electric automobiles are provided with BMS (Battery Management System ).
The BMS is a core in a power battery of an electric automobile, monitors and manages the battery, collects and calculates parameters such as voltage, current, temperature, power, state of Charge (SOC), and the like, further controls the charging and discharging processes of the battery, realizes the protection of the battery, and improves the comprehensive performance of the battery.
At present, each vehicle type has different BMS systems, the data of the BMS are only open to the vehicle type, the outside cannot know at all, but the basis of battery management is the comprehensive control of real data information.
How to obtain accurate and real BMS data information and BMS data information of different vehicle types becomes a difficult problem of most manufacturers of charging piles.
Disclosure of Invention
The embodiment of the invention aims to provide a system and a method for acquiring BMS data of an electric automobile, which can solve the problems that a charging pile manufacturer is difficult to acquire BMS original data from the outside and BMS original data of different automobile types cannot be acquired, increase the coverage of the automobile types, and simultaneously can analyze, predict and diagnose the health state of a battery and improve the comprehensive performance of the battery.
In order to solve the technical problems, the embodiment of the invention provides the following technical scheme: a system for acquiring electric vehicle BMS data, the system for acquiring electric vehicle BMS data comprising: the vehicle-mounted communication interface device, the vehicle-mounted diagnosis system diagnosis seat and the cloud server; wherein:
the vehicle-mounted communication interface device acquires BMS original data of a target vehicle type through the vehicle-mounted diagnosis system diagnosis seat according to a vehicle type system parameter configuration table;
the vehicle-mounted communication interface device uploads the acquired BMS original data of the target vehicle type to a cloud server through a preset communication network;
and the cloud server analyzes the received BMS original data, and determines the current health condition of the battery according to the analyzed data.
Optionally, the vehicle type system parameter configuration table is that the vehicle-mounted communication interface device collects system parameter configuration information in an electronic control unit of the electric vehicle through the vehicle-mounted diagnosis system diagnosis seat and uploads the system parameter configuration information to the cloud server, and then the cloud server establishes a corresponding vehicle type system parameter configuration table in a database according to the uploaded system parameter configuration information, wherein the vehicle type system parameter configuration table is used for matching system parameter configuration of a target vehicle type.
Optionally, the vehicle-mounted communication interface device obtains BMS raw data of the target vehicle type through the vehicle-mounted diagnosis system diagnosis seat according to the vehicle type system parameter configuration table, including:
the vehicle-mounted communication interface device acquires a vehicle identification code, and requests a vehicle type system parameter configuration table corresponding to the vehicle identification code from a cloud server through a preset communication network according to the vehicle identification code;
and after the vehicle-mounted communication interface device acquires the vehicle type system parameter configuration table corresponding to the vehicle identification code, BMS original data of the target vehicle type is acquired through the vehicle-mounted diagnosis system diagnosis seat according to the vehicle type system parameter configuration table.
Optionally, the vehicle-mounted communication interface device acquires a vehicle identification code, including at least one of the following modes:
mode one: the vehicle-mounted communication interface device is connected with the electric automobile through the vehicle-mounted diagnosis system diagnosis seat, and automatically obtains the vehicle identification code of the electric automobile;
mode two: and the vehicle-mounted communication interface device is connected with the electric automobile through the vehicle-mounted diagnosis system diagnosis seat, and can not automatically acquire the vehicle identification code of the electric automobile, so that the vehicle identification code of the electric automobile can be acquired by manually inputting the vehicle identification code by a user.
Optionally, the BMS raw data includes BMS history data and/or charging pile charging and discharging data;
the BMS historical data is obtained by the vehicle-mounted communication interface device through the vehicle-mounted diagnosis system diagnosis seat at preset time intervals from the electric automobile, and the BMS real-time data is stored locally to form BMS historical data;
the charging pile charging and discharging data are self charging pile charging and discharging data detected by the charging pile when the electric automobile is charged.
Optionally, the preset communication network includes a communication network of the charging pile;
the vehicle-mounted communication interface device uploads the BMS original data of the obtained target vehicle type to the cloud server through a preset communication network, and the vehicle-mounted communication interface device comprises:
when the electric automobile is charged, the vehicle-mounted communication interface device forms BMS historical data from the acquired BMS real-time data and uploads the BMS historical data to the charging pile in real time through Bluetooth; charging pile will detect self charging pile charge-discharge data with BMS historical data packs into BMS primary data under a timestamp, will through charging pile's communication network the BMS primary data is uploaded to the high in the clouds server.
Optionally, the preset communication network includes a communication network configured by the vehicle-mounted communication interface device itself;
the vehicle-mounted communication interface device uploads the BMS original data of the obtained target vehicle type to the cloud server through a preset communication network, and the vehicle-mounted communication interface device comprises:
when electric automobile is non-charging, on-vehicle communication interface device will through the communication network that on-vehicle communication interface device self configured BMS raw data upload to high in the clouds server, the transmission this moment BMS raw data is BMS historical data, does not include charging pile charge and discharge data.
Optionally, the cloud server analyzes the received BMS original data, and determines the current health condition of the battery according to the analyzed data; comprising the following steps:
the cloud server analyzes the received BMS original data and stores the analyzed data;
and the cloud server takes the analyzed data as input parameters of an algorithm model, and calculates the current health condition of the battery through a preset algorithm.
Optionally, the cloud server is further configured to inform the user of the current battery health status result according to a preset notification mode.
In order to solve the technical problems, the embodiment of the invention also provides the following technical scheme: a method of acquiring BMS data of an electric vehicle, the method comprising:
the vehicle-mounted communication interface device acquires BMS original data of a target vehicle type through the vehicle-mounted diagnosis system diagnosis seat according to the vehicle type system parameter configuration table;
the vehicle-mounted communication interface device uploads the acquired BMS original data of the target vehicle type to a cloud server through a preset communication network;
and the cloud server analyzes the received BMS original data, and determines the current health condition of the battery according to the analyzed data.
Compared with the prior art, the system and the method for acquiring the BMS data of the electric automobile provided by the embodiment of the invention acquire BMS original data of a target automobile through the vehicle-mounted diagnosis system diagnosis seat according to the automobile system parameter configuration table through the vehicle-mounted communication interface device, and upload the acquired BMS original data of the target automobile to the cloud server through the preset communication network, wherein the cloud server analyzes the received BMS original data, and determines the health condition SOH of the current battery according to the analyzed data. Therefore, the vehicle-mounted communication interface device can acquire BMS original data including voltage, current, temperature and SOC of different vehicle types through the vehicle-mounted diagnosis system diagnosis seat, and the problem that a charging pile manufacturer is difficult to acquire the BMS original data from the outside is solved. The vehicle-mounted communication interface device obtains BMS original data of different vehicle types through different vehicle type system parameter configuration tables, solves the problem that a charging pile manufacturer cannot obtain BMS original data of different vehicle types, increases the coverage of the vehicle types, enables the charging pile manufacturer to comprehensively control accurate and real BMS original data of different vehicle types, enables the charging pile manufacturer to rapidly and conveniently develop work, and improves working efficiency. Meanwhile, by collecting a large amount of BMS original data of different vehicle types, an algorithm model can be established for the big data of the cloud server, and a large amount of accurate BMS original data in charging and non-charging are provided, so that the cloud server can analyze, predict and diagnose the health state of the battery by utilizing the BMS original data, and accordingly the performance of the battery can be maintained better, the comprehensive performance of the battery is improved, and the protection of the battery is better realized.
Drawings
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.
Fig. 1 is a first structural schematic diagram of a system for acquiring BMS data of an electric vehicle according to the present invention;
fig. 2 is a second structural schematic diagram of a system for acquiring BMS data of an electric vehicle according to the present invention;
fig. 3 is a third structural schematic diagram of a system for acquiring BMS data of an electric vehicle according to the present invention;
fig. 4 is a flow chart of a method for acquiring BMS data of an electric vehicle according to the present invention.
Detailed Description
In order that the invention may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings. It will be understood that when an element is referred to as being "fixed" to another element, it can be directly on the other element or one or more intervening elements may be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The terms "upper," "lower," "inner," "outer," "bottom," and the like as used in this specification are used in an orientation or positional relationship based on that shown in the drawings, merely to facilitate the description of the invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.
In addition, the technical features mentioned in the different embodiments of the invention described below can be combined with one another as long as they do not conflict with one another.
In one embodiment, as shown in fig. 1, the present invention provides a system for acquiring BMS data of an electric vehicle, the system for acquiring BMS data of an electric vehicle comprising: an On-board communication interface (VCI, vehicle Communication Interface) device 1, an On-board diagnostic system (OBD, on-Board Diagnostics) diagnostic mount 2 and a cloud server 3. Wherein:
the diagnosis seat 2 of the vehicle-mounted diagnosis system is used for providing an interface for acquiring BMS data of the electric vehicle 4. The vehicle-mounted diagnosis system diagnosis seat 2 communicates with the electric vehicle 4 through an OBDII vehicle-mounted diagnosis system CAN communication protocol.
The vehicle-mounted communication interface device 1 obtains BMS original data of a target vehicle type through the vehicle-mounted diagnosis system diagnosis seat 2 according to a vehicle type system parameter configuration table. The vehicle type system parameter configuration table is that the vehicle-mounted communication interface device (VCI device) 1 collects system parameter configuration information in an electronic control unit (Electronic Control Unit, ECU) of the electric vehicle 4 through the vehicle-mounted diagnosis system diagnosis seat 2 and uploads the system parameter configuration information to the cloud server 3, and then the cloud server 3 establishes a corresponding vehicle type system parameter configuration table in a database according to the uploaded system parameter configuration information, wherein the vehicle type system parameter configuration table is used for matching system parameter configuration of a target vehicle type.
The vehicle-mounted communication interface device 1 uploads the acquired BMS original data of the target vehicle type to the cloud server 3 through a preset communication network.
The cloud server 3 parses the received BMS raw data, and determines the current State of Health (SOH) of the battery according to the parsed data.
In this embodiment, the vehicle-mounted communication interface device obtains BMS original data of a target vehicle type through the vehicle-mounted diagnosis system diagnosis seat according to the vehicle-mounted communication interface device, and uploads the obtained BMS original data of the target vehicle type to the cloud server through a preset communication network, the cloud server analyzes the received BMS original data, and determines the health status SOH of the current battery according to the analyzed data. Therefore, the vehicle-mounted communication interface device can acquire BMS original data including voltage, current, temperature and SOC of different vehicle types through the vehicle-mounted diagnosis system diagnosis seat, and the problem that a charging pile manufacturer is difficult to acquire the BMS original data from the outside is solved. The vehicle-mounted communication interface device obtains BMS original data of different vehicle types through different vehicle type system parameter configuration tables, solves the problem that a charging pile manufacturer cannot obtain BMS original data of different vehicle types, increases the coverage of the vehicle types, enables the charging pile manufacturer to comprehensively control accurate and real BMS original data of different vehicle types, enables the charging pile manufacturer to rapidly and conveniently develop work, and improves working efficiency. Meanwhile, by collecting a large amount of BMS original data of different vehicle types, an algorithm model can be established for the big data of the cloud server, and a large amount of accurate BMS original data in charging and non-charging are provided, so that the cloud server can analyze, predict and diagnose the health state of the battery by utilizing the BMS original data, and accordingly the performance of the battery can be maintained better, the comprehensive performance of the battery is improved, and the protection of the battery is better realized.
In one embodiment, the vehicle-mounted communication interface device 1 obtains BMS raw data of a target vehicle type through the vehicle-mounted diagnosis system diagnosis seat 2 according to a vehicle type system parameter configuration table, and the method includes:
the vehicle-mounted communication interface device 1 obtains a VIN (Vehicle Identification Number, vehicle identification code) code, requests a vehicle model system parameter configuration table corresponding to the VIN code from the cloud server 3 through a preset communication network according to the VIN code, and obtains the vehicle model system parameter configuration table corresponding to the VIN code. The cloud server distributes the vehicle type system parameter configuration table corresponding to the VIN code according to the request of the vehicle-mounted communication interface device 1 and sends the vehicle type system parameter configuration table to the vehicle-mounted communication interface device 1.
The vehicle communication interface device 1 obtains the VIN code, which includes at least one of the following modes:
mode one: and the vehicle-mounted communication interface device 1 is connected with the electric vehicle 4 through the vehicle-mounted diagnosis system diagnosis seat 2 to automatically acquire the VIN code of the electric vehicle 4.
Mode two: the vehicle-mounted communication interface device 1 is connected with the electric vehicle 4 through the vehicle-mounted diagnosis system diagnosis seat 2, and can not automatically acquire the VIN code of the electric vehicle 4, and then the VIN code of the electric vehicle 4 can be acquired through a mode of manually inputting the VIN code by a user.
After the vehicle-mounted communication interface device 1 obtains the vehicle type system parameter configuration table corresponding to the VIN code, BMS original data of the target vehicle type is obtained through the vehicle-mounted diagnosis system diagnosis seat 2 according to the vehicle type system parameter configuration table.
In this embodiment, after the vehicle-mounted communication interface device 1 obtains the vehicle type system parameter configuration table, the vehicle-mounted diagnosis system diagnosis seat 2 is used to enter different systems of the electric vehicle 4, and the vehicle-mounted diagnosis system diagnosis seat 2 is used to obtain BMS original data including a power battery, an electrical system and the like; wherein, BMS raw data includes BMS historical data and/or charging pile charge-discharge data.
The BMS history data is obtained by the in-vehicle communication interface device 1 from the electric vehicle 4 through the in-vehicle diagnosis system diagnosis seat 2 at preset time intervals (for example, every 30s, 60s, or 120 s) and stored locally as the BMS history data. When the electric automobile is not charged, the BMS original data only comprise BMS historical data.
The charging pile charging and discharging data are self-charging pile charging and discharging data detected by the charging pile 5 when the electric automobile is charged. Wherein the charging pile 5 comprises an alternating current charging pile and/or a direct current charging pile. When electric automobile charges, BMS raw data includes BMS historical data and fills electric pile charging and discharging data.
In one embodiment, as shown in fig. 2 and 3, the vehicle communication interface device 1 includes a first vehicle communication interface device 11 or a second vehicle communication interface device 12.
As shown in fig. 2, the first vehicle communication interface device 11 has a bluetooth transmission function, and can be in communication connection with the charging pile 5 through bluetooth, so as to transmit BMS original data to the charging pile 5, and upload the BMS original data to the cloud server 3 through a communication network (e.g., wiFi/4G/5G) of the charging pile 5.
As shown in fig. 3, the second vehicle-mounted communication interface device 12 has a bluetooth transmission function and a mobile communication function (e.g., 4G, 5G communication function), the second vehicle-mounted communication interface device 12 may be in communication connection with the charging pile 5 through bluetooth, and transmit BMS raw data to the charging pile 5, and then upload the BMS raw data to the cloud server 3 through a communication network (e.g., wiFi/4G/5G) of the charging pile 5; or, the second in-vehicle communication interface device 12 directly uploads the BMS raw data to the cloud server 3 through the mobile communication function configured by itself.
In one embodiment, the preset communication network comprises at least one of: the communication network of the charging pile and the communication network configured by the vehicle-mounted communication interface device.
As shown in fig. 2, the vehicle-mounted communication interface device 1 uploads the obtained BMS raw data of the target vehicle model to the cloud server 3 through a preset communication network, including: the vehicle-mounted communication interface device 1 uploads the acquired BMS original data of the target vehicle type to the cloud server 3 through a communication network of the charging pile 5.
In this embodiment, when the electric vehicle is charged, the vehicle-mounted communication interface device 1 forms the acquired BMS real-time data into BMS history data and uploads the BMS history data to the charging pile 5 in real time through bluetooth; when the vehicle-mounted communication interface device 1, the charging pile 5 and the cloud server 3 are all connected on line, the vehicle-mounted communication interface device 1 uploads BMS historical data to the cloud server 3 through the communication network of the charging pile 5. Charging stake 5 will detect self charging stake charge-discharge data with BMS historical data packs into BMS primary data under a timestamp, will through charging stake 5's communication network the BMS primary data is uploaded to cloud server 3. In this process, the BMS history data uploaded by the vehicle-mounted communication interface device 1 maintains the simultaneity with the charging pile charging and discharging data of the charging pile 5, and the BMS history data uploaded by the vehicle-mounted communication interface device 1 is delayed by < 10ms. At this time, the BMS raw data transmitted to the cloud server 3 includes BMS history data and charging pile charging and discharging data. At this time, the in-vehicle communication interface device 1 may include the first in-vehicle communication interface device 11 or the second in-vehicle communication interface device 12.
In one embodiment, as shown in fig. 3, the vehicle-mounted communication interface device 1 uploads the obtained BMS raw data of the target vehicle model to the cloud server 3 through a preset communication network, including: the vehicle-mounted communication interface device 1 uploads the acquired BMS original data of the target vehicle type to the cloud server 3 through a communication network configured by the vehicle-mounted communication interface device 1.
In this embodiment, when the electric vehicle is not charged, the vehicle-mounted communication interface device 1 uploads the BMS raw data to the cloud server 3 through a communication network formed by self-configured communication modules (e.g., a 4G communication module and a 5G communication module), and the BMS raw data transmitted at this time is BMS history data, and does not include charging pile charging and discharging data. At this time, the in-vehicle communication interface apparatus 1 can include only the second in-vehicle communication interface apparatus 12.
In one embodiment, the cloud server 3 parses the received BMS raw data, and determines the current health status of the battery according to the parsed data; comprising the following steps:
the cloud server 3 analyzes the received BMS original data and stores the analyzed data;
the cloud server 3 takes the analyzed data as input parameters of an algorithm model, and calculates the current health condition SOH of the battery through a preset algorithm;
the cloud server 3 establishes a preset algorithm library for analyzing BMS data in the cloud server 3 in advance according to a large amount of BMS original data collected by the vehicle-mounted communication interface device 1, and establishes an algorithm model based on the large amount of BMS original data. And the algorithm model can use a preset algorithm in a preset algorithm library to carry out cloud operation so as to calculate the current health condition of the battery only by taking the data after the analysis of the BMS original data as the input parameters of the algorithm model.
The cloud server 3 informs the user of the current battery health status according to a preset notification mode. Preferably, the preset notification mode includes APP notification. The cloud server 3 is in interactive communication with the APP in the mobile terminal of the user through WiFi or 4G/5G, and the cloud server 3 informs the user of the current battery health condition result through the APP notification mode of the mobile terminal and displays the current battery health condition result to the user through the APP.
Based on the same concept, in one embodiment, as shown in fig. 4, the present disclosure provides a method for acquiring BMS data of an electric vehicle, which is applied to the system for acquiring BMS data of an electric vehicle according to any one of the above embodiments, and the method includes:
s1, a vehicle-mounted communication interface device acquires BMS original data of a target vehicle type through a vehicle-mounted diagnosis system diagnosis seat according to a vehicle type system parameter configuration table;
s2, uploading the acquired BMS original data of the target vehicle type to a cloud server through a preset communication network by the vehicle-mounted communication interface device;
and S3, the cloud server analyzes the received BMS original data, and determines the current Health condition (SOH) of the battery according to the analyzed data.
In this embodiment, the vehicle-mounted communication interface device obtains BMS original data of a target vehicle type through the vehicle-mounted diagnosis system diagnosis seat according to the vehicle-mounted communication interface device, and uploads the obtained BMS original data of the target vehicle type to the cloud server through a preset communication network, the cloud server analyzes the received BMS original data, and determines the health status SOH of the current battery according to the analyzed data. Therefore, the vehicle-mounted communication interface device can acquire BMS original data including voltage, current, temperature and SOC of different vehicle types through the vehicle-mounted diagnosis system diagnosis seat, and the problem that a charging pile manufacturer is difficult to acquire the BMS original data from the outside is solved. The vehicle-mounted communication interface device obtains BMS original data of different vehicle types through different vehicle type system parameter configuration tables, solves the problem that a charging pile manufacturer cannot obtain BMS original data of different vehicle types, increases the coverage of the vehicle types, enables the charging pile manufacturer to comprehensively control accurate and real BMS original data of different vehicle types, enables the charging pile manufacturer to rapidly and conveniently develop work, and improves working efficiency. Meanwhile, by collecting a large amount of BMS original data of different vehicle types, an algorithm model can be established for the big data of the cloud server, and a large amount of accurate BMS original data in charging and non-charging are provided, so that the cloud server can analyze, predict and diagnose the health state of the battery by utilizing the BMS original data, and accordingly the performance of the battery can be maintained better, the comprehensive performance of the battery is improved, and the protection of the battery is better realized.
In one embodiment, before the step S1, the method further includes: the vehicle-mounted communication interface device collects system parameter configuration information in an electronic control unit of the electric vehicle through the vehicle-mounted diagnosis system diagnosis seat and uploads the system parameter configuration information to the cloud server, and then the cloud server establishes a corresponding vehicle type system parameter configuration table in a database according to the uploaded system parameter configuration information, wherein the vehicle type system parameter configuration table is used for matching system parameter configuration of a target vehicle type.
In one embodiment, in the step S1, the vehicle-mounted communication interface device obtains BMS raw data of a target vehicle type through the vehicle-mounted diagnosis system diagnosis seat according to a vehicle type system parameter configuration table, including:
s11, the vehicle-mounted communication interface device acquires a VIN code, and requests a vehicle type system parameter configuration table corresponding to the VIN code from a cloud server through a preset communication network according to the VIN code, and acquires the vehicle type system parameter configuration table corresponding to the VIN code.
The vehicle-mounted communication interface device obtains VIN codes in at least one of the following modes:
mode one: and the vehicle-mounted communication interface device is connected with the electric automobile through the vehicle-mounted diagnosis system diagnosis seat and is used for automatically acquiring the VIN code of the electric automobile.
Mode two: and the vehicle-mounted communication interface device is connected with the electric automobile through the vehicle-mounted diagnosis system diagnosis seat, and can not automatically acquire the VIN code of the electric automobile, and the VIN code of the electric automobile can be acquired through a mode of manually inputting the VIN code by a user.
And S12, after the vehicle-mounted communication interface device acquires the vehicle type system parameter configuration table corresponding to the VIN code, BMS original data of the target vehicle type is acquired through the vehicle-mounted diagnosis system diagnosis seat according to the vehicle type system parameter configuration table.
In this embodiment, after the vehicle-mounted communication interface device obtains the vehicle type system parameter configuration table, the vehicle-mounted communication interface device enters different systems of the electric vehicle through the vehicle-mounted diagnosis system diagnosis seat, and obtains BMS original data including a power battery, an electrical system and the like through the vehicle-mounted diagnosis system diagnosis seat; wherein, BMS raw data includes BMS historical data and/or charging pile charge-discharge data.
The BMS historical data is obtained by the vehicle-mounted communication interface device from the electric automobile through the vehicle-mounted diagnosis system diagnosis seat at preset time intervals (for example, every 30s, 60s or 120 s) and is stored locally to form the BMS historical data. When the electric automobile is not charged, the BMS original data only comprise BMS historical data.
The charging pile charging and discharging data are self charging pile charging and discharging data detected by the charging pile when the electric automobile is charged. The charging pile comprises an alternating current charging pile and/or a direct current charging pile. When electric automobile charges, BMS raw data includes BMS historical data and fills electric pile charging and discharging data.
In one embodiment, in the step S2, the preset communication network includes at least one of the following: the communication network of the charging pile and the communication network configured by the vehicle-mounted communication interface device.
In step S2, the vehicle-mounted communication interface device uploads the obtained BMS raw data of the target vehicle model to a cloud server through a preset communication network, including: and the vehicle-mounted communication interface device uploads the acquired BMS original data of the target vehicle type to the cloud server through a communication network of the charging pile.
In this embodiment, when the electric vehicle is charged, the vehicle-mounted communication interface device forms the acquired BMS real-time data into BMS history data and uploads the BMS history data to the charging pile in real time through bluetooth; charging pile fills electric pile charge and discharge data and the BMS historical data of self that detects under a timestamp packing into BMS primary data, will through the communication network of filling electric pile the BMS primary data is uploaded to the high in the clouds server. In the process, the BMS historical data uploaded by the vehicle-mounted communication interface device keeps the synchronism with the charging pile charging and discharging data of the charging pile, and the BMS historical data uploaded by the vehicle-mounted communication interface device is delayed by less than 10ms. At this time, the BMS raw data transmitted to the cloud server includes BMS history data and charging pile charging and discharging data.
In one embodiment, in step S2, the vehicle-mounted communication interface device uploads the obtained BMS raw data of the target vehicle model to a cloud server through a preset communication network, including: and the vehicle-mounted communication interface device uploads the acquired BMS original data of the target vehicle type to the cloud server through a communication network configured by the vehicle-mounted communication interface device.
In this embodiment, when the electric automobile is not charged, the vehicle-mounted communication interface device uploads the BMS raw data to the cloud server through a communication network formed by the communication modules configured by the vehicle-mounted communication interface device, and the BMS raw data transmitted at this time is BMS history data and does not include charging pile charging and discharging data.
In one embodiment, in the step S3, the cloud server parses the received BMS raw data, and determines the current health status of the battery according to the parsed data; comprising the following steps:
s31, the cloud server analyzes the received BMS original data and stores the analyzed data;
s32, the cloud server takes the analyzed data as input parameters of an algorithm model, and calculates the current health condition SOH of the battery through a preset algorithm;
the cloud server establishes a BMS data analysis preset algorithm library in the cloud server in advance according to a large amount of BMS original data collected by the vehicle-mounted communication interface device, and establishes an algorithm model based on the large amount of BMS original data. And the algorithm model can use a preset algorithm in a preset algorithm library to carry out cloud operation so as to calculate the current health condition of the battery only by taking the data after the analysis of the BMS original data as the input parameters of the algorithm model.
And S33, the cloud server informs the user of the current battery health condition result according to a preset notification mode. Preferably, the preset notification mode includes APP notification. The cloud server is in interactive communication with the APP in the mobile terminal of the user through WiFi or 4G/5G, and the cloud server informs the user of the current battery health condition result through the APP notification mode of the mobile terminal and displays the current battery health condition result to the user through the APP.
It should be noted that the method embodiment and the system embodiment belong to the same concept, the specific implementation process is detailed in the system embodiment, and technical features in the system embodiment are correspondingly applicable in the method embodiment, which is not repeated herein.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; the technical features of the above embodiments or in the different embodiments may also be combined within the idea of the invention, the steps may be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims (8)

1. A system for acquiring BMS data of an electric vehicle, wherein the system for acquiring BMS data of an electric vehicle comprises: the vehicle-mounted communication interface device, the vehicle-mounted diagnosis system diagnosis seat and the cloud server; wherein:
the vehicle-mounted communication interface device obtains BMS original data of a target vehicle type through the vehicle-mounted diagnosis system diagnosis seat according to a vehicle type system parameter configuration table, wherein the BMS original data comprises BMS historical data and/or charging pile charging and discharging data;
the vehicle-mounted communication interface device uploads the BMS original data of the obtained target vehicle type to the cloud server through a communication network of the charging pile, and the vehicle-mounted communication interface device comprises: when the electric automobile is charged, the vehicle-mounted communication interface device forms BMS historical data from the acquired BMS real-time data and uploads the BMS historical data to the charging pile in real time through Bluetooth; the charging pile packages the detected charging and discharging data of the charging pile and the BMS historical data into BMS original data under a time stamp, and uploads the BMS original data to a cloud server through a communication network of the charging pile;
and the cloud server analyzes the received BMS original data, and determines the current health condition of the battery according to the analyzed data.
2. The system for obtaining BMS data of an electric vehicle according to claim 1, wherein the vehicle type system parameter configuration table is a vehicle type system parameter configuration table established in a database by the cloud server according to the uploaded system parameter configuration information, and the vehicle type system parameter configuration table is used for matching a system parameter configuration of a target vehicle type.
3. The system for obtaining BMS data of an electric vehicle according to claim 1, wherein the vehicle-mounted communication interface device obtains BMS raw data of a target vehicle type through the vehicle-mounted diagnosis system diagnosis seat according to a vehicle type system parameter configuration table, comprising:
the vehicle-mounted communication interface device acquires a vehicle identification code, and requests a vehicle type system parameter configuration table corresponding to the vehicle identification code from a cloud server through a communication network of a charging pile according to the vehicle identification code;
and after the vehicle-mounted communication interface device acquires the vehicle type system parameter configuration table corresponding to the vehicle identification code, BMS original data of the target vehicle type is acquired through the vehicle-mounted diagnosis system diagnosis seat according to the vehicle type system parameter configuration table.
4. The system for obtaining BMS data of an electric vehicle according to claim 3, wherein the vehicle-mounted communication interface device obtains a vehicle identification code, comprising at least one of the following means:
mode one: the vehicle-mounted communication interface device is connected with the electric automobile through the vehicle-mounted diagnosis system diagnosis seat, and automatically obtains the vehicle identification code of the electric automobile;
mode two: and the vehicle-mounted communication interface device is connected with the electric automobile through the vehicle-mounted diagnosis system diagnosis seat, and can not automatically acquire the vehicle identification code of the electric automobile, so that the vehicle identification code of the electric automobile can be acquired by manually inputting the vehicle identification code by a user.
5. The system for acquiring BMS data of an electric vehicle according to claim 1, wherein the BMS history data is BMS history data obtained by the vehicle-mounted communication interface device from the electric vehicle through the vehicle-mounted diagnosis system diagnosis base at every preset time and stored locally;
the charging pile charging and discharging data are self charging pile charging and discharging data detected by the charging pile when the electric automobile is charged.
6. The system for acquiring the BMS data of the electric automobile according to claim 1, wherein the cloud server analyzes the received BMS raw data and determines the current health condition of the battery according to the analyzed data; comprising the following steps:
the cloud server analyzes the received BMS original data and stores the analyzed data;
and the cloud server takes the analyzed data as input parameters of an algorithm model, and calculates the current health condition of the battery through a preset algorithm.
7. The system for obtaining BMS data of an electric vehicle of claim 6, wherein the cloud server is further configured to inform a user of a result of a current battery health status according to a preset notification manner.
8. A method for acquiring BMS data of an electric vehicle, applied to a system for acquiring BMS data of an electric vehicle according to any one of claims 1 to 7, comprising:
the vehicle-mounted communication interface device acquires BMS original data of a target vehicle type through the vehicle-mounted diagnosis system diagnosis seat according to a vehicle type system parameter configuration table, wherein the BMS original data comprises BMS historical data and/or charging and discharging data of a charging pile;
the vehicle-mounted communication interface device uploads the BMS original data of the obtained target vehicle type to the cloud server through a communication network of the charging pile, and the vehicle-mounted communication interface device comprises: when the electric automobile is charged, the vehicle-mounted communication interface device forms BMS historical data from the acquired BMS real-time data and uploads the BMS historical data to the charging pile in real time through Bluetooth; the charging pile packages the detected charging and discharging data of the charging pile and the BMS historical data into BMS original data under a time stamp, and uploads the BMS original data to a cloud server through a communication network of the charging pile;
and the cloud server analyzes the received BMS original data, and determines the current health condition of the battery according to the analyzed data.
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