CN113212222A - Electric vehicle residual capacity and charging time pre-estimation system - Google Patents
Electric vehicle residual capacity and charging time pre-estimation system Download PDFInfo
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- CN113212222A CN113212222A CN202110416801.6A CN202110416801A CN113212222A CN 113212222 A CN113212222 A CN 113212222A CN 202110416801 A CN202110416801 A CN 202110416801A CN 113212222 A CN113212222 A CN 113212222A
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- 238000004891 communication Methods 0.000 claims description 28
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- 230000003247 decreasing effect Effects 0.000 description 4
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- 238000010280 constant potential charging Methods 0.000 description 1
- 238000010277 constant-current charging Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
- B60L53/62—Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
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- 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—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]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- 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 for estimating the residual electric quantity and the charging time of an electric vehicle. The system comprises a data acquisition terminal, a server and a mobile terminal; the data acquisition terminal is used for acquiring the related data of the storage battery of the electric vehicle and sending the data to the server; the mobile terminal is used for sending the recorded vehicle basic information and the information of the associated charging management module to the server; the server is used for calculating the current electric quantity and the residual charge quantity of the storage battery and calculating the charging remaining time according to the residual charge quantity and the charging strategy; the mobile terminal is further used for sending a charging query instruction, and the server sends the current electric quantity and the residual charging time of the storage battery queried by the server to the mobile terminal after receiving the query instruction sent by the mobile terminal. The invention can calculate the current electric quantity and the charging remaining time of the storage battery, and the vehicle owner can remotely inquire and know the current charging state through the mobile terminal, thereby being convenient for the vehicle owner to plan the activity items of the vehicle owner and being convenient for use.
Description
Technical Field
The invention relates to the technical field of a system for estimating the residual electric quantity and the charging time of an electric vehicle, in particular to a system for estimating the residual electric quantity and the charging time of the electric vehicle.
Background
Along with the more and more high attention of people to the energy, the electric automobile trade rapid development in recent years, the share of electric automobile on the automobile market steadily increases, for the convenience of car owner charging, the density of setting up with the supporting charging station of electric automobile is also bigger and bigger, the development of current charging station is more and more focused on how to attract the car owner to come and charge, and has ignored how to provide convenient service for the car owner. Specifically, the existing charging facility cannot provide detailed knowledge of the charging situation of the current electric vehicle for the vehicle owner, and the vehicle owner cannot remotely know the charging situation of the current electric vehicle, so that the vehicle charging facility is inconvenient to use.
Disclosure of Invention
The invention aims to provide a system for estimating the residual electric quantity and the charging time of an electric vehicle, aiming at the defects in the prior art.
In order to achieve the aim, the invention provides a system for estimating the residual electric quantity and the charging time of an electric vehicle, which comprises a data acquisition terminal, a server and a mobile terminal;
the data acquisition terminal is connected with the charging pile and used for acquiring initial voltage data of the storage battery of the electric vehicle when the charging pile is connected with the storage battery on the electric vehicle, acquiring the serial number of the charging pile, the serial number of the charging management module, the charging voltage, the charging current and the adopted charging strategy, and sending the acquired initial voltage data, the serial number of the charging pile, the serial number of the charging management module, the charging voltage, the charging current and the adopted charging strategy to the server;
the mobile terminal is used for a vehicle owner to enter basic information of the vehicle, the basic information of the vehicle comprises a vehicle type and the service life of the storage battery, the vehicle is associated with the charging management module by scanning the two-dimensional code on the charging gun, and the entered basic information of the vehicle and the information associated with the charging management module are sent to the server;
the server is connected with the communication unit to receive initial voltage data, charging pile numbers, charging management module numbers, charging voltages, charging currents and adopted charging strategies sent by the data acquisition terminal, calculate initial residual capacity of the storage battery according to the initial voltage data, receive and store vehicle basic information and information of the associated charging management module, which are recorded by a vehicle owner through the mobile terminal, through the communication unit, pre-store models and original capacity information of the storage battery of various vehicle types and the change relation between the voltage and the electric quantity of the storage battery, calculate the current capacity of the storage battery according to the vehicle basic information and the models and the original capacity information recorded by the vehicle owner and the change relation between the voltage and the electric quantity of the storage battery, calculate the current charging quantity according to the received charging voltage and charging currents, and calculate the current charging quantity according to the initial residual capacity, the charging strategy and the charging strategies, Calculating the current electric quantity and the residual charge quantity of the storage battery according to the performed charge quantity and the current capacity of the storage battery, and calculating the charging residual time according to the residual charge quantity and a charging strategy;
the mobile terminal is further used for sending a charging query instruction, and the server sends the current electric quantity and the residual charging time of the storage battery queried by the server to the mobile terminal after receiving the query instruction sent by the mobile terminal.
Further, the data acquisition terminal includes:
the voltage sampling unit is used for being connected with a power line of the charging gun so as to collect initial voltage data of the storage battery of the electric vehicle when the charging pile is connected with the storage battery on the electric vehicle;
the first communication module is connected with the charging management module so as to acquire a charging pile number, a charging management module number, a charging voltage, a charging current and an adopted charging strategy;
and the processor is respectively connected with the voltage sampling unit, the first communication module and the second communication module to process the initial voltage data, the charging pile number, the charging management module number, the charging voltage, the charging current and the adopted charging strategy and control the second communication module to send the initial voltage data, the charging pile number, the charging management module number, the charging voltage, the charging current and the adopted charging strategy.
Furthermore, the processor is further connected with a positioning module to control collection of vehicle charging position information and control the second communication module to send the vehicle charging position information to the server, so that the server provides position service.
Further, the processing module comprises an STM32 single chip microcomputer.
Further, the voltage sampling unit comprises a voltage sensor, a sampling circuit connected with the voltage sensor and a filtering module connected with the sampling circuit.
Further, the first communication module comprises an RS485 module and a network port module.
Further, the server includes:
the residual electric quantity calculating module is used for calculating the initial residual electric quantity of the storage battery according to the initial voltage data;
the information input module is used for enabling the vehicle owner to input basic information of the vehicle on line through the mobile terminal;
the storage module is used for storing basic vehicle information input by a vehicle owner through a mobile terminal, information of the associated charging management module sent by the mobile terminal, models of storage batteries of various vehicle types, original capacity information and the change relation between the voltage and the electric quantity of the storage batteries;
the battery capacity estimation module is used for calculating the current capacity of the storage battery according to the basic information of the vehicle and the model thereof, the original capacity information and the change relation between the voltage and the electric quantity thereof, which are input by a vehicle owner;
the charging quantity counting module is used for calculating the current charging quantity according to the charging voltage and the charging current;
the real-time electric quantity calculation module is used for calculating the electric quantity of the current storage battery according to the initial residual electric quantity and the charging quantity;
the difference value calculation module is used for calculating the residual charge amount according to the electric quantity of the current storage battery and the current capacity of the storage battery;
and the charging remaining time calculation module is used for calculating the charging remaining time according to the remaining charging amount and the charging strategy.
Has the advantages that: according to the invention, the electric quantity of the storage battery before charging is judged by collecting the initial voltage of the storage battery, the current capacity of the storage battery can be estimated by inputting the vehicle type and the service life of the storage battery by a user, and the charging amount can be calculated according to the charging data acquired from the charging management module, so that the electric quantity and the charging remaining time of the current storage battery can be further calculated.
Drawings
Fig. 1 is a schematic structural diagram of a system for estimating remaining capacity and charging time of an electric vehicle according to an embodiment of the present invention.
Fig. 2 is a functional block diagram of a server according to an embodiment of the present invention.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific examples, which are carried out on the premise of the technical solution of the present invention, and it should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1 and 2, an embodiment of the present invention provides a system for estimating remaining capacity and charging time of an electric vehicle, including a data acquisition terminal 1, a server 2, and a mobile terminal.
Wherein, data acquisition terminal 1 sets up in the charging station, and one is preferred to be connected by data acquisition terminal 1 and fills electric pile, and is concrete, and data acquisition terminal 1 is connected with the rifle power cord that charges that fills on the electric pile, and then when filling electric pile and connecting battery 100 on the electric motor car, gathers electric motor car battery 100's initial voltage data, and according to the change curve relation of the voltage of battery 100 and electric quantity, the initial voltage data of this battery 100 can be as the judgement foundation of the surplus electric quantity before battery 100 charges. The data acquisition terminal 1 is further connected with a charging management module 200 of the charging pile, and further can acquire the number of the charging pile, the number of the charging management module 200, the charging voltage, the charging current and the adopted charging strategy, the charging strategy refers to the charging modes adopted by the charging management module 200 at different stages in the whole charging process, including constant voltage charging, constant current charging, positive and negative pulse charging and the like, and the data acquisition terminal 1 sends the acquired initial voltage data, the number of the charging pile, the number of the charging management module 200, the charging voltage, the charging current and the adopted charging strategy to the server 2.
The mobile terminal of the embodiment of the invention is used for a vehicle owner to record basic information of the vehicle, the basic information of the vehicle comprises a vehicle type and the service life of the storage battery 100, the vehicle owner can associate the vehicle with the charging management module 200 by scanning the two-dimensional code on the charging gun through the mobile terminal, and the recorded basic information of the vehicle and the information associated with the charging management module 200 are sent to the server 2.
The server 2 is connected with the communication unit 3, and receives the initial voltage data, the charging pile number, the charging management module 200 number, the charging voltage, the charging current and the adopted charging strategy sent by the data acquisition terminal 1 through the communication unit 3. The server 2 calculates the initial remaining capacity of the storage battery 100 according to the initial voltage data, the server 2 receives and stores the vehicle basic information and the information of the associated charging management module 200, which are input by the vehicle owner through the mobile terminal, through the communication unit 3, the model number and the original capacity information of the storage battery 100 of various vehicle types and the change relationship between the voltage and the electric quantity of the storage battery 100 are pre-stored in the server 2, and the calculation of the initial remaining capacity by the server 2 is performed through the model number and the change relationship between the voltage and the electric quantity of the storage battery 100. The server 2 calculates the current capacity of the storage battery 100 according to the basic information of the vehicle, which is input by the vehicle owner, specifically, the capacity of the storage battery 100 decreases by 2.3% to 4.2% every year, a total decreasing average value can be taken as the annual estimated capacity decreasing percentage, and the decreasing average value can be respectively taken as the annual estimated capacity decreasing percentage of different vehicle types or brands. The current capacity of the battery 100 may be estimated based on the initial capacity of the battery 100, the age of the battery, and the estimated annual capacity drop percentage.
The server 2 calculates the currently performed charging amount according to the charging voltage and the charging current received by the server, specifically, the charging power is the product of the charging voltage and the charging current, the performed charging amount is the product of the charging power and the charging efficiency, the charging efficiency is different from the adopted charging strategy, seasonal temperature change and the like, the charging efficiency is generally between 80% and 85%, and therefore, the charging efficiency can be set to a fixed value between 80% and 85%. More preferably, the charging efficiency is a variable, after each vehicle finishes charging, the charging efficiency of the charging may be calculated according to a ratio of a charging amount to a charging power, and the charging efficiency may be set as an average value of charging efficiencies of all charging vehicles using the charging pile in a current period of time, such as an average value of charging efficiencies in a week. The server 2 calculates the current capacity and the remaining charge amount of the storage battery 100 from the initial remaining capacity, the performed charge amount, and the current capacity of the storage battery 100, and calculates the charge remaining time from the remaining charge amount and the charging policy. Thus, the server 2 can estimate the current charge amount and the charge remaining time of the storage battery 100.
The mobile terminal of the embodiment of the invention is also used for sending a charging query instruction, and after receiving the query instruction sent by the mobile terminal, the server 3 sends the queried current electric quantity and residual charging time of the storage battery 100 to the mobile terminal, so that a vehicle owner can remotely know the charging progress condition through the mobile terminal.
The data acquisition terminal 1 of the embodiment of the present invention includes a voltage sampling unit 11, a first communication module 12, a processor 13, a second communication module 14, a power module 16, and the like.
The voltage sampling unit 11 is used for being connected with a power line of a charging gun, so that initial voltage data of the storage battery 100 of the electric vehicle can be collected when the storage battery 100 of the electric vehicle is connected to the charging pile. The voltage sampling unit 11 includes a voltage sensor and a sampling circuit connected to the voltage sensor, and a filtering module may be further provided to filter the sampling signal, and the filtering module is connected to an output end connected to the sampling circuit.
The first communication module 12 can adopt an RS485 module and a network port module. The charging management module 200 is connected to collect the charging pile number, the charging management module 200 number, the charging voltage, the charging current and the adopted charging strategy;
the processor 13 may adopt an STM32 single chip microcomputer, and the processor 13 is connected to the voltage sampling unit 11, the first communication module 12 and the second communication module 14, respectively, to process the initial voltage data, the number of the charging pile, the number of the charging management module 200, the charging voltage, the charging current and the adopted charging policy, and control the second communication module 14 to send out the initial voltage data, the number of the charging pile, the number of the charging management module 200, the charging voltage, the charging current and the adopted charging policy. The second communication module 14 may adopt a wireless communication module or a network interface module. The power module 16 preferably takes electricity directly from the mains supply, and the situation that the charging pile cannot work normally during the fault period is avoided.
The processor 13 is further connected with a positioning module 15 to control the collection of the vehicle charging position information and control the second communication module 14 to transmit the vehicle charging position information to the server 2, so that the server 2 provides the position service. The positioning module 15 can be a GPS positioning module, a glonass module, a beidou positioning module, or the like.
The server of the embodiment of the invention comprises a residual electric quantity calculation module 21, an information entry module 22, a storage module 23, a battery capacity estimation module 24, a charging quantity statistics module 25, a real-time electric quantity calculation module 26, a difference value calculation module 27 and a charging remaining time calculation module 28.
The remaining power calculating module 21 is configured to calculate an initial remaining power of the battery 100 according to the initial voltage data. The information input module 22 is used for the vehicle owner to input the basic information of the vehicle on line through the mobile terminal;
the storage module 23 is configured to store vehicle basic information entered by a vehicle owner through the mobile terminal, information sent by the mobile terminal and associated with the charging management module 200, and types and original capacity information of the storage battery 100 of various vehicle types, and a change relationship between voltage and electric quantity thereof. The battery capacity estimation module 24 is configured to calculate the current capacity of the storage battery 100 according to the vehicle basic information and the model thereof, the original capacity information, and the change relationship between the voltage and the electric quantity thereof, which are recorded by the vehicle owner. The charging amount statistic module 25 is used for calculating the currently performed charging amount according to the charging voltage and the charging current. The real-time power calculating module 26 is configured to calculate the current power of the battery 100 according to the initial remaining power and the charging amount. The difference calculation module 27 is configured to calculate a remaining charge amount according to the current electric quantity of the battery 100 and the current capacity of the battery 100. The charging remaining time calculation module 28 is configured to calculate the charging remaining time according to the remaining charge and the charging policy.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that other parts not specifically described are within the prior art or common general knowledge to those of ordinary skill in the art. Without departing from the principle of the invention, several improvements and modifications can be made, and these improvements and modifications should also be construed as the scope of the invention.
Claims (7)
1. A system for estimating the residual electric quantity and the charging time of an electric vehicle is characterized by comprising a data acquisition terminal, a server and a mobile terminal;
the data acquisition terminal is connected with the charging pile and used for acquiring initial voltage data of the storage battery of the electric vehicle when the charging pile is connected with the storage battery on the electric vehicle, acquiring the serial number of the charging pile, the serial number of the charging management module, the charging voltage, the charging current and the adopted charging strategy, and sending the acquired initial voltage data, the serial number of the charging pile, the serial number of the charging management module, the charging voltage, the charging current and the adopted charging strategy to the server;
the mobile terminal is used for a vehicle owner to enter basic information of the vehicle, the basic information of the vehicle comprises a vehicle type and the service life of the storage battery, the vehicle is associated with the charging management module by scanning the two-dimensional code on the charging gun, and the entered basic information of the vehicle and the information associated with the charging management module are sent to the server;
the server is connected with the communication unit to receive initial voltage data, charging pile numbers, charging management module numbers, charging voltages, charging currents and adopted charging strategies sent by the data acquisition terminal, calculate initial residual capacity of the storage battery according to the initial voltage data, receive and store vehicle basic information and information of the associated charging management module, which are recorded by a vehicle owner through the mobile terminal, through the communication unit, pre-store models and original capacity information of the storage battery of various vehicle types and the change relation between the voltage and the electric quantity of the storage battery, calculate the current capacity of the storage battery according to the vehicle basic information and the models and the original capacity information recorded by the vehicle owner and the change relation between the voltage and the electric quantity of the storage battery, calculate the current charging quantity according to the received charging voltage and charging currents, and calculate the current charging quantity according to the initial residual capacity, the charging strategy and the charging strategies, Calculating the current electric quantity and the residual charge quantity of the storage battery according to the performed charge quantity and the current capacity of the storage battery, and calculating the charging residual time according to the residual charge quantity and a charging strategy;
the mobile terminal is further used for sending a charging query instruction, and the server sends the current electric quantity and the residual charging time of the storage battery queried by the server to the mobile terminal after receiving the query instruction sent by the mobile terminal.
2. The system for estimating the remaining capacity and the charging time of the electric vehicle as claimed in claim 1, wherein the data acquisition terminal comprises:
the voltage sampling unit is used for being connected with a power line of the charging gun so as to collect initial voltage data of the storage battery of the electric vehicle when the charging pile is connected with the storage battery on the electric vehicle;
the first communication module is connected with the charging management module so as to acquire a charging pile number, a charging management module number, a charging voltage, a charging current and an adopted charging strategy;
and the processor is respectively connected with the voltage sampling unit, the first communication module and the second communication module to process the initial voltage data, the charging pile number, the charging management module number, the charging voltage, the charging current and the adopted charging strategy and control the second communication module to send the initial voltage data, the charging pile number, the charging management module number, the charging voltage, the charging current and the adopted charging strategy.
3. The system for estimating the remaining capacity and the charging time of the electric vehicle as claimed in claim 2, wherein the processor is further connected with a positioning module to control the collection of the vehicle charging position information and control the second communication module to send the vehicle charging position information to the server, so that the server provides the position service.
4. The system for estimating the residual capacity and the charging time of the electric vehicle as claimed in claim 2, wherein the processing module comprises an STM32 single chip microcomputer.
5. The system for estimating the remaining capacity and the charging time of the electric vehicle as claimed in claim 2, wherein the voltage sampling unit comprises a voltage sensor, a sampling circuit connected to the voltage sensor, and a filtering module connected to the sampling circuit.
6. The system for estimating the remaining capacity and the charging time of the electric vehicle as claimed in claim 2, wherein the first communication module comprises an RS485 module and a network interface module.
7. The system for estimating remaining power and charging time of an electric vehicle according to claim 1, wherein the server comprises:
the residual electric quantity calculating module is used for calculating the initial residual electric quantity of the storage battery according to the initial voltage data;
the information input module is used for enabling the vehicle owner to input basic information of the vehicle on line through the mobile terminal;
the storage module is used for storing basic vehicle information input by a vehicle owner through a mobile terminal, information of the associated charging management module sent by the mobile terminal, models of storage batteries of various vehicle types, original capacity information and the change relation between the voltage and the electric quantity of the storage batteries;
the battery capacity estimation module is used for calculating the current capacity of the storage battery according to the basic information of the vehicle and the model thereof, the original capacity information and the change relation between the voltage and the electric quantity thereof, which are input by a vehicle owner;
the charging quantity counting module is used for calculating the current charging quantity according to the charging voltage and the charging current;
the real-time electric quantity calculation module is used for calculating the electric quantity of the current storage battery according to the initial residual electric quantity and the charging quantity;
the difference value calculation module is used for calculating the residual charge amount according to the electric quantity of the current storage battery and the current capacity of the storage battery;
and the charging remaining time calculation module is used for calculating the charging remaining time according to the remaining charging amount and the charging strategy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110416801.6A CN113212222A (en) | 2021-04-19 | 2021-04-19 | Electric vehicle residual capacity and charging time pre-estimation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110416801.6A CN113212222A (en) | 2021-04-19 | 2021-04-19 | Electric vehicle residual capacity and charging time pre-estimation system |
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| CN113212222A true CN113212222A (en) | 2021-08-06 |
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| CN202110416801.6A Pending CN113212222A (en) | 2021-04-19 | 2021-04-19 | Electric vehicle residual capacity and charging time pre-estimation system |
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| CN (1) | CN113212222A (en) |
Cited By (1)
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