CN112060973A - Electric vehicle battery safety monitoring system based on data acquisition - Google Patents

Electric vehicle battery safety monitoring system based on data acquisition Download PDF

Info

Publication number
CN112060973A
CN112060973A CN202010872587.0A CN202010872587A CN112060973A CN 112060973 A CN112060973 A CN 112060973A CN 202010872587 A CN202010872587 A CN 202010872587A CN 112060973 A CN112060973 A CN 112060973A
Authority
CN
China
Prior art keywords
information
battery
temperature
module
voltage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202010872587.0A
Other languages
Chinese (zh)
Inventor
张帅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202010872587.0A priority Critical patent/CN112060973A/en
Publication of CN112060973A publication Critical patent/CN112060973A/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
    • 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
    • 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

Abstract

The invention discloses a safety monitoring system for an electric vehicle battery based on data acquisition, which comprises a battery temperature acquisition module, a battery voltage acquisition module, a battery electric quantity acquisition module, a battery fault acquisition module, a data receiving module, a data processing module, a master control module, a heat dissipation module and an information sending module; the battery temperature acquisition module, the battery voltage acquisition module, the battery electric quantity acquisition module and the battery fault acquisition module are all in communication connection with the data receiving module, the data receiving module is in communication connection with the data processing module, the data receiving module is in communication connection with the master control module, and the master control module is in communication connection with the heat dissipation module and the information sending module respectively; the battery temperature acquisition module comprises at least four temperature sensors and is used for acquiring battery temperature information. The invention can monitor the battery safety more comprehensively and meet different use requirements of users.

Description

Electric vehicle battery safety monitoring system based on data acquisition
Technical Field
The invention relates to the field of battery monitoring, in particular to a safety monitoring system for an electric vehicle battery based on data acquisition.
Background
Batteries for electric vehicles fall into two broad categories, batteries and fuel cells. The storage battery is suitable for pure electric vehicles and comprises a lead-acid storage battery, a nickel-metal hydride battery, a sodium-sulfur battery, a secondary lithium battery, an air battery, a ternary lithium battery and an electric vehicle battery, and a safety monitoring system is required to be used for carrying out real-time safety monitoring on the battery in the actual use process.
The existing battery safety monitoring system is single in monitored data, cannot perform comprehensive safety monitoring on a battery, cannot meet the use requirements of users due to single function, brings certain influence on the use of the battery safety monitoring system, and therefore provides the electric vehicle battery safety monitoring system based on data acquisition.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: how to solve current battery safety monitoring system, the data of monitoring are comparatively single, can not carry out comprehensive safety monitoring to the battery to the user demand that the function singleness can not satisfy the user has brought the problem of certain influence for battery safety monitoring system's use, provides one kind based on data acquisition electric motor car battery safety monitoring system.
The invention solves the technical problems through the following technical scheme, and the invention comprises a battery temperature acquisition module, a battery voltage acquisition module, a battery electric quantity acquisition module, a battery fault acquisition module, a data receiving module, a data processing module, a master control module, a heat dissipation module and an information sending module;
the battery temperature acquisition module, the battery voltage acquisition module, the battery electric quantity acquisition module and the battery fault acquisition module are all in communication connection with the data receiving module, the data receiving module is in communication connection with the data processing module, the data receiving module is in communication connection with the master control module, and the master control module is in communication connection with the heat dissipation module and the information sending module respectively;
the battery temperature acquisition module comprises at least four temperature sensors, the battery temperature acquisition module is used for acquiring battery temperature information, the battery voltage acquisition module is used for acquiring voltage information of the battery, the battery fault acquisition module is used for acquiring fault information of the battery, and the fault information comprises short circuit, charging failure and incapability of supplying power; the battery electric quantity acquisition module is used for acquiring real-time battery electric quantity information and vehicle power consumption information per kilometer;
the data receiving module is used for receiving battery temperature information, battery voltage information, battery fault information, battery residual capacity information and vehicle power consumption information per kilometer, and generating the battery temperature information, the battery voltage information, the battery fault information, the battery residual capacity information and the vehicle power consumption information per kilometer to the data processing module for processing;
the data processing module is used for processing the received battery temperature information, the voltage information of the battery, the fault information of the battery, the residual electric quantity information of the battery and the power consumption information of each kilometer of the vehicle, processing the battery temperature information into heat dissipation information and temperature alarm information, processing the battery voltage information into voltage alarm information, processing the battery fault information into fault alarm information, and processing the residual electric quantity information of the battery and the power consumption information of each kilometer of the vehicle into charging prompt information and low-power alarm information;
the master control module is used for processing heat dissipation information and temperature alarm information into a heat dissipation instruction or a temperature alarm instruction, the heat dissipation instruction is sent to the heat dissipation module, the temperature alarm information is sent to the information sending module, and meanwhile, the master control module is also used for processing voltage alarm information, fault alarm information, charging prompt information and low-power alarm information into a voltage alarm instruction, a fault alarm instruction, a charging prompt instruction and a low-power alarm instruction which are sent to the information sending module;
the information sending module is used for sending a temperature alarm instruction, a voltage alarm instruction, a fault alarm instruction, a charging prompt instruction and a low-power alarm instruction to the intelligent mobile terminal of a user.
Preferably, the specific processing procedure of the heat dissipation information is as follows:
the method comprises the following steps: extracting real-time battery temperature information, marking the temperature information as Wt, and continuously acquiring the temperature information Wt for m times within a preset time period, wherein m is more than or equal to 5;
step two: by the formula Wt1+ Wt2+ … … Wtm ═ WtAndcalculating the sum Wt of the m times of temperature information WtAnd；
step (ii) ofThirdly, the method comprises the following steps: then pass through WtAnd/m＝Wtare all made ofObtaining the temperature mean value WtAre all made ofWhen Wt isAre all made ofWhen the value is larger than the preset value, A1 generates heat dissipation information;
step four: when the number of Wt 1-Wtm exceeding the preset value A2 exceeds the preset value number, heat dissipation information is generated.
Preferably, the specific processing procedure of the temperature alarm information is as follows:
the method comprises the following steps: the heat dissipation information is processed into a heat dissipation instruction and then sent to a heat dissipation module to dissipate heat of the battery, the temperature information of the battery is collected for m times within a preset time length after the battery dissipates heat, and the temperature information collected for the time is marked as Nt;
step two: establishing a planar rectangular coordinate system U1 by taking the temperature value as a Y axis and the time interval between the collected temperature information as an X axis, and drawing a broken line K on the planar rectangular coordinate system U1 by collecting the temperature information Nt for m times;
step three: drawing a straight line parallel to an X axis by using a preset temperature value to obtain an early warning line L, extracting the number X of points of a broken line K exceeding the early warning line L, and generating temperature warning information when the number X of the points of the broken line K exceeding the early warning line L is greater than the preset number;
step four: by the formula Nt1+ Nt2+ … … Ntm ═ NtAndcalculating the total Nt of the m times of temperature information NtAndwhen Nt isAndand generating temperature alarm information when the temperature is higher than the preset temperature.
Preferably, the specific processing procedure of the voltage alarm information is as follows:
the method comprises the following steps: marking the real-time acquired battery voltage information as Dt, acquiring the voltage information once every preset time, and continuously acquiring for z times, wherein z is more than or equal to 9;
step two: establishing a plane direct coordinate system U2 by taking the voltage value as a Y axis and the acquisition interval duration as an X axis;
step three: drawing a broken line graph of the z-time battery voltage information Dt on a plane direct coordinate system U2 to obtain a broken line Q;
step four: measuring an included angle W1 between the Dt1 and the Dt2 after the connection and the horizontal plane, measuring an included angle W2 … … between the Dt2 and the Dt3 after the connection and the horizontal plane, and measuring an included angle Wz between Dtz-1 and Dtz after the connection and the horizontal plane;
step five: the sum of the calculated W1+ W2+ W3 … … Wz is used to obtain the angle sum WAndthen W is addedAnddividing by z to obtain the angular mean value WAre all made ofWhen W isAre all made ofGenerating voltage alarm information when the voltage is greater than a preset value;
the specific content of the voltage alarm information is 'please overhaul and maintain the voltage change angle'.
Preferably, the specific processing procedure of the fault alarm information is as follows: when the battery is short-circuited, fails to charge and cannot supply power, fault alarm information is directly generated.
Preferably, the specific processing procedure of the charging prompt message is as follows:
the method comprises the following steps: marking the obtained real-time electric quantity information as P, and marking the power consumption information of the vehicle per kilometer as G;
step two: the method comprises the steps that in the running process of a vehicle, the system acquires charging position information within a preset distance with the vehicle position as an end point from the Internet;
step three: obtaining the remaining electric quantity driving mileage information through a formula P/G-Pg;
step four: extracting the distances between all charging stations and the vehicles, marking the distances as En, and ranking the En from long to short according to the mileage;
step five: extracting three shortest En, and calculating the difference value of PG and En to obtain Pe1, Pe2 and Pe 3;
step six: when Pe1, Pe2 and Pe3 are all greater than 0, the specific content of the generated charging prompt information is that "the vehicle needs to be charged, and charging stations Pe1, Pe2 and Pe3 can charge nearby";
step seven: when Pe1, Pe2, and Pe3 are all smaller than 0, the specific content of the generated charging prompt message is "the vehicle needs to be charged, and the nearby charging station is far away from the vehicle and please perform power saving processing".
Preferably, the specific processing procedure of the low battery alarm information is as follows:
the method comprises the following steps: marking the full charge of the batteryIs CIs full ofMarking the real-time battery power information collected in real time as CFruit of Chinese wolfberry；
Step two: calculating real-time battery power information CFruit of Chinese wolfberryFull electric quantity CIs full ofThe ratio of the residual electric quantity to the residual electric quantity is obtainedRatio of；
Step three; when the ratio of the remaining capacity CRatio ofAnd generating low-power alarm information when the power is less than a preset value.
Compared with the prior art, the invention has the following advantages:
1. the safety monitoring system for the battery of the electric vehicle based on data acquisition can monitor the temperature of the battery in real time, firstly carries out heat dissipation treatment on the battery when the temperature of the battery is overhigh, and sends out a temperature alarm when the temperature of the battery is still overhigh after heat dissipation, so that the temperature of the battery is overhauled by a vehicle user, accidents caused by overhigh temperature of the battery are reduced effectively, and the condition that the battery falsely sends out an alarm when the temperature is overhigh in a short time is avoided;
2. the system can also monitor the voltage information of the battery in real time, can effectively know the voltage change condition of the battery through the maintenance and real-time analysis of the voltage information of the battery, and can send out voltage alarm information to remind a vehicle user when the voltage of the battery is too high or too low and the voltage fluctuation is too large, so that the user can timely maintain the battery to avoid the damage of voltage danger to the battery, and the service life of the battery is prolonged;
3. through monitoring the residual electric quantity of the battery, and timely sending a charging prompt message to prompt a user to charge the battery when the battery is close to a charging station, the situation that the vehicle does not have electricity during running is effectively avoided, the system is more humanized, and the fault message is timely sent out when the battery fails, so that the user can timely get rid of the fault, the color development of the situation that the vehicle cannot run due to the battery failure is greatly reduced, and the system is more worthy of popularization and use.
Drawings
FIG. 1 is a block diagram of the system of the present invention.
Detailed Description
The following examples are given for the detailed implementation and specific operation of the present invention, but the scope of the present invention is not limited to the following examples.
As shown in fig. 1, the present embodiment provides a technical solution: a safety monitoring system for an electric vehicle battery based on data acquisition comprises a battery temperature acquisition module, a battery voltage acquisition module, a battery electric quantity acquisition module, a battery fault acquisition module, a data receiving module, a data processing module, a master control module, a heat dissipation module and an information sending module;
the battery temperature acquisition module, the battery voltage acquisition module, the battery electric quantity acquisition module and the battery fault acquisition module are all in communication connection with the data receiving module, the data receiving module is in communication connection with the data processing module, the data receiving module is in communication connection with the master control module, and the master control module is in communication connection with the heat dissipation module and the information sending module respectively;
the battery temperature acquisition module comprises at least four temperature sensors, the battery temperature acquisition module is used for acquiring battery temperature information, the battery voltage acquisition module is used for acquiring voltage information of the battery, the battery fault acquisition module is used for acquiring fault information of the battery, and the fault information comprises short circuit, charging failure and incapability of supplying power; the battery electric quantity acquisition module is used for acquiring real-time battery electric quantity information and vehicle power consumption information per kilometer;
the data receiving module is used for receiving battery temperature information, battery voltage information, battery fault information, battery residual capacity information and vehicle power consumption information per kilometer, and generating the battery temperature information, the battery voltage information, the battery fault information, the battery residual capacity information and the vehicle power consumption information per kilometer to the data processing module for processing;
the data processing module is used for processing the received battery temperature information, the voltage information of the battery, the fault information of the battery, the residual electric quantity information of the battery and the power consumption information of each kilometer of the vehicle, processing the battery temperature information into heat dissipation information and temperature alarm information, processing the battery voltage information into voltage alarm information, processing the battery fault information into fault alarm information, and processing the residual electric quantity information of the battery and the power consumption information of each kilometer of the vehicle into charging prompt information and low-power alarm information;
the master control module is used for processing heat dissipation information and temperature alarm information into a heat dissipation instruction or a temperature alarm instruction, the heat dissipation instruction is sent to the heat dissipation module, the temperature alarm information is sent to the information sending module, and meanwhile, the master control module is also used for processing voltage alarm information, fault alarm information, charging prompt information and low-power alarm information into a voltage alarm instruction, a fault alarm instruction, a charging prompt instruction and a low-power alarm instruction which are sent to the information sending module;
the information sending module is used for sending a temperature alarm instruction, a voltage alarm instruction, a fault alarm instruction, a charging prompt instruction and a low-power alarm instruction to the intelligent mobile terminal of a user.
The specific processing process of the heat dissipation information is as follows:
the method comprises the following steps: extracting real-time battery temperature information, marking the temperature information as Wt, and continuously acquiring the temperature information Wt for m times within a preset time period, wherein m is more than or equal to 5;
step two: by the formula Wt1+ Wt2+ … … Wtm ═ WtAndcalculating the sum Wt of the m times of temperature information WtAnd；
step three: then pass through WtAnd/m＝Wtare all made ofObtaining the temperature mean value WtAre all made ofWhen Wt isAre all made ofWhen the value is larger than the preset value, A1 generates heat dissipation information;
step four: when the number of Wt 1-Wtm exceeding the preset value A2 exceeds the preset value number, generating heat dissipation information;
the battery can be subjected to heat dissipation treatment in time, and the damage caused by overheating of the battery is reduced.
The specific processing procedure of the temperature alarm information is as follows:
the method comprises the following steps: the heat dissipation information is processed into a heat dissipation instruction and then sent to a heat dissipation module to dissipate heat of the battery, the temperature information of the battery is collected for m times within a preset time length after the battery dissipates heat, and the temperature information collected for the time is marked as Nt;
step two: establishing a planar rectangular coordinate system U1 by taking the temperature value as a Y axis and the time interval between the collected temperature information as an X axis, and drawing a broken line K on the planar rectangular coordinate system U1 by collecting the temperature information Nt for m times;
step three: drawing a straight line parallel to an X axis by using a preset temperature value to obtain an early warning line L, extracting the number X of points of a broken line K exceeding the early warning line L, and generating temperature warning information when the number X of the points of the broken line K exceeding the early warning line L is greater than the preset number;
step four: by the formula Nt1+ Nt2+ … … Ntm ═ NtAndcalculating the total Nt of the m times of temperature information NtAndwhen Nt isAndgenerating temperature alarm information when the temperature is higher than the preset temperature;
the temperature can prompt a user to maintain and repair when the temperature of the battery still exceeds the standard after heat dissipation, and accidents caused by overhigh temperature of the battery are greatly reduced.
The specific processing procedure of the voltage alarm information is as follows:
the method comprises the following steps: marking the real-time acquired battery voltage information as Dt, acquiring the voltage information once every preset time, and continuously acquiring for z times, wherein z is more than or equal to 9;
step two: establishing a plane direct coordinate system U2 by taking the voltage value as a Y axis and the acquisition interval duration as an X axis;
step three: drawing a broken line graph of the z-time battery voltage information Dt on a plane direct coordinate system U2 to obtain a broken line Q;
step four: measuring an included angle W1 between the Dt1 and the Dt2 after the connection and the horizontal plane, measuring an included angle W2 … … between the Dt2 and the Dt3 after the connection and the horizontal plane, and measuring an included angle Wz between Dtz-1 and Dtz after the connection and the horizontal plane;
step five: the sum of the calculated W1+ W2+ W3 … … Wz is used to obtain the angle sum WAndthen W is addedAnddividing by z to obtain the angular mean value WAre all made ofWhen W isAre all made ofGenerating voltage alarm information when the voltage is greater than a preset value;
the specific content of the voltage alarm information is 'the voltage change angle requires to be overhauled and maintained';
through overhauing real-time analysis to battery voltage information, can effectually know the voltage change situation of battery to at battery voltage too high, cross lowly, send voltage alarm information when voltage fluctuation is too big and remind the vehicle user, the user overhauls promptly and avoids the voltage danger to cause the harm to the battery, has prolonged battery life.
The specific processing procedure of the fault alarm information is as follows: when the battery is short-circuited, fails to charge and cannot supply power, fault alarm information is directly generated.
The specific processing process of the charging prompt information is as follows:
the method comprises the following steps: marking the obtained real-time electric quantity information as P, and marking the power consumption information of the vehicle per kilometer as G;
step two: the method comprises the steps that in the running process of a vehicle, the system acquires charging position information within a preset distance with the vehicle position as an end point from the Internet;
step three: obtaining the remaining electric quantity driving mileage information through a formula P/G-Pg;
step four: extracting the distances between all charging stations and the vehicles, marking the distances as En, and ranking the En from long to short according to the mileage;
step five: extracting three shortest En, and calculating the difference value of PG and En to obtain Pe1, Pe2 and Pe 3;
step six: when Pe1, Pe2 and Pe3 are all greater than 0, the specific content of the generated charging prompt information is that "the vehicle needs to be charged, and charging stations Pe1, Pe2 and Pe3 can charge nearby";
step seven: when Pe1, Pe2, and Pe3 are all smaller than 0, the specific content of the generated charging prompt message is "the vehicle needs to be charged, and the nearby charging station is far away from the vehicle and please perform power saving processing".
The specific processing procedure of the low power alarm information is as follows:
the method comprises the following steps: marking the full charge of the battery as CIs full ofMarking the real-time battery power information collected in real time as CFruit of Chinese wolfberry；
Step two: calculating real-time battery power information CFruit of Chinese wolfberryFull electric quantity CIs full ofThe ratio of the residual electric quantity to the residual electric quantity is obtainedRatio of；
Step three; when the ratio of the remaining capacity CRatio ofGenerating low-power alarm information when the power is less than a preset value;
through monitoring the residual electric quantity of the battery, and timely sending a charging prompt message to prompt a user to charge the battery when the battery is close to a charging station, the situation that the vehicle does not have electricity during running is effectively avoided, the system is more humanized, and the fault message is timely sent out when the battery fails, so that the user can timely get rid of the fault, the color development of the situation that the vehicle cannot run due to the battery failure is greatly reduced, and the system is more worthy of popularization and use.
In summary, when the battery temperature acquisition module is used, the battery temperature acquisition module comprises at least four temperature sensors, the battery temperature acquisition module acquires battery temperature information, the battery voltage acquisition module acquires voltage information of the battery, the battery fault acquisition module acquires fault information of the battery, and the fault information comprises short circuit, charging failure and incapability of supplying power; the battery electric quantity acquisition module acquires real-time battery electric quantity information and vehicle power consumption information per kilometer; the data receiving module receives battery temperature information, battery voltage information, battery fault information, battery remaining capacity information and vehicle power consumption information per kilometer, and generates the battery temperature information, the battery voltage information, the battery fault information, the battery remaining capacity information and the vehicle power consumption information per kilometer to the data processing module for processing; the data processing module processes the received battery temperature information, the voltage information of the battery, the fault information of the battery, the residual electric quantity information of the battery and the power consumption information of each kilometer of the vehicle, processes the battery temperature information into heat dissipation information and temperature alarm information, processes the battery voltage information into voltage alarm information, processes the battery fault information into fault alarm information, and processes the residual electric quantity information of the battery and the power consumption information of each kilometer of the vehicle into charging prompt information and low-power alarm information; the master control module processes the heat dissipation information and the temperature alarm information into a heat dissipation instruction or a temperature alarm instruction, the heat dissipation instruction is sent to the heat dissipation module, the temperature alarm information is sent to the information sending module, and meanwhile, the master control module processes the voltage alarm information, the fault alarm information, the charging prompt information and the low-power alarm information into a voltage alarm instruction, a fault alarm instruction, a charging prompt instruction and a low-power alarm instruction and sends the voltage alarm instruction, the fault alarm instruction, the charging prompt instruction and the low-power alarm instruction to the information sending module; the system can monitor the voltage information of the battery in real time, and can effectively know the voltage change condition of the battery through the real-time analysis of the battery voltage information maintenance, and when the battery voltage is overhigh, the system can monitor the voltage change condition of the battery in real time, It is low excessively, send out voltage alarm information and remind the vehicle user when voltage fluctuation is too big, the user overhauls promptly and avoids the voltage danger to cause the harm to the battery, battery life has been prolonged, simultaneously through monitoring battery residual capacity, and in time send the suggestion user that charges to carry out battery charging when being close to the charging station, the effectual vehicle situation of having avoided traveling on the way does not have the electricity takes place, more humanized, and in time send failure information when the battery trouble, let the user in time get rid of the trouble, the unable situation hair color that traveles of vehicle that the battery trouble leads to has significantly reduced produces, let this system be worth using widely more.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (7)

1. A safety monitoring system for an electric vehicle battery based on data acquisition is characterized by comprising a battery temperature acquisition module, a battery voltage acquisition module, a battery electric quantity acquisition module, a battery fault acquisition module, a data receiving module, a data processing module, a master control module, a heat dissipation module and an information sending module;
the battery temperature acquisition module, the battery voltage acquisition module, the battery electric quantity acquisition module and the battery fault acquisition module are all in communication connection with the data receiving module, the data receiving module is in communication connection with the data processing module, the data receiving module is in communication connection with the master control module, and the master control module is in communication connection with the heat dissipation module and the information sending module respectively;
the battery temperature acquisition module comprises at least four temperature sensors, the battery temperature acquisition module is used for acquiring battery temperature information, the battery voltage acquisition module is used for acquiring voltage information of the battery, the battery fault acquisition module is used for acquiring fault information of the battery, and the fault information comprises short circuit, charging failure and incapability of supplying power; the battery electric quantity acquisition module is used for acquiring real-time battery electric quantity information and vehicle power consumption information per kilometer;
the data receiving module is used for receiving battery temperature information, battery voltage information, battery fault information, battery residual capacity information and vehicle power consumption information per kilometer, and generating the battery temperature information, the battery voltage information, the battery fault information, the battery residual capacity information and the vehicle power consumption information per kilometer to the data processing module for processing;
the data processing module is used for processing the received battery temperature information, the voltage information of the battery, the fault information of the battery, the residual electric quantity information of the battery and the power consumption information of each kilometer of the vehicle, processing the battery temperature information into heat dissipation information and temperature alarm information, processing the battery voltage information into voltage alarm information, processing the battery fault information into fault alarm information, and processing the residual electric quantity information of the battery and the power consumption information of each kilometer of the vehicle into charging prompt information and low-power alarm information;
the master control module is used for processing heat dissipation information and temperature alarm information into a heat dissipation instruction or a temperature alarm instruction, the heat dissipation instruction is sent to the heat dissipation module, the temperature alarm information is sent to the information sending module, and meanwhile, the master control module is also used for processing voltage alarm information, fault alarm information, charging prompt information and low-power alarm information into a voltage alarm instruction, a fault alarm instruction, a charging prompt instruction and a low-power alarm instruction which are sent to the information sending module;
the information sending module is used for sending a temperature alarm instruction, a voltage alarm instruction, a fault alarm instruction, a charging prompt instruction and a low-power alarm instruction to the intelligent mobile terminal of a user.
2. The data acquisition-based electric vehicle battery safety monitoring system of claim 1, characterized in that: the specific processing process of the heat dissipation information is as follows:
the method comprises the following steps: extracting real-time battery temperature information, marking the temperature information as Wt, and continuously acquiring the temperature information Wt for m times within a preset time period, wherein m is more than or equal to 5;
step two: by the formula Wt1+ Wt2+ … … Wtm ═ WtAndcalculating the sum Wt of the m times of temperature information WtAnd；
step three: then pass through WtAnd/m＝Wtare all made ofObtaining the temperature mean value WtAre all made ofWhen Wt isAre all made ofWhen the value is larger than the preset value, A1 generates heat dissipation information;
step four: when the number of Wt 1-Wtm exceeding the preset value A2 exceeds the preset value number, heat dissipation information is generated.
3. The data acquisition-based electric vehicle battery safety monitoring system of claim 1, characterized in that: the specific processing procedure of the temperature alarm information is as follows:
the method comprises the following steps: the heat dissipation information is processed into a heat dissipation instruction and then sent to a heat dissipation module to dissipate heat of the battery, the temperature information of the battery is collected for m times within a preset time length after the battery dissipates heat, and the temperature information collected for the time is marked as Nt;
step two: establishing a planar rectangular coordinate system U1 by taking the temperature value as a Y axis and the time interval between the collected temperature information as an X axis, and drawing a broken line K on the planar rectangular coordinate system U1 by collecting the temperature information Nt for m times;
step three: drawing a straight line parallel to an X axis by using a preset temperature value to obtain an early warning line L, extracting the number X of points of a broken line K exceeding the early warning line L, and generating temperature warning information when the number X of the points of the broken line K exceeding the early warning line L is greater than the preset number;
step four: by the formula Nt1+ Nt2+ … … Ntm ═ NtAndcalculating the total Nt of the m times of temperature information NtAndwhen Nt isAndand generating temperature alarm information when the temperature is higher than the preset temperature.
4. The data acquisition-based electric vehicle battery safety monitoring system of claim 1, characterized in that: the specific processing procedure of the voltage alarm information is as follows:
the method comprises the following steps: marking the real-time acquired battery voltage information as Dt, acquiring the voltage information once every preset time, and continuously acquiring for z times, wherein z is more than or equal to 9;
step two: establishing a plane direct coordinate system U2 by taking the voltage value as a Y axis and the acquisition interval duration as an X axis;
step three: drawing a broken line graph of the z-time battery voltage information Dt on a plane direct coordinate system U2 to obtain a broken line Q;
step four: measuring an included angle W1 between the Dt1 and the Dt2 after the connection and the horizontal plane, measuring an included angle W2 … … between the Dt2 and the Dt3 after the connection and the horizontal plane, and measuring an included angle Wz between Dtz-1 and Dtz after the connection and the horizontal plane;
step five: the sum of the calculated W1+ W2+ W3 … … Wz is used to obtain the angle sum WAndthen W is addedAnddividing by z to obtain the angular mean value WAre all made ofWhen W isAre all made ofGenerating voltage alarm information when the voltage is greater than a preset value;
the specific content of the voltage alarm information is 'please overhaul and maintain the voltage change angle'.
5. The data acquisition-based electric vehicle battery safety monitoring system of claim 1, characterized in that: the specific processing procedure of the fault alarm information is as follows: when the battery is short-circuited, fails to charge and cannot supply power, fault alarm information is directly generated.
6. The data acquisition-based electric vehicle battery safety monitoring system of claim 1, characterized in that: the specific processing process of the charging prompt information is as follows:
the method comprises the following steps: marking the obtained real-time electric quantity information as P, and marking the power consumption information of the vehicle per kilometer as G;
step two: the method comprises the steps that in the running process of a vehicle, the system acquires charging position information within a preset distance with the vehicle position as an end point from the Internet;
step three: obtaining the remaining electric quantity driving mileage information through a formula P/G-Pg;
step four: extracting the distances between all charging stations and the vehicles, marking the distances as En, and ranking the En from long to short according to the mileage;
step five: extracting three shortest En, and calculating the difference value of PG and En to obtain Pe1, Pe2 and Pe 3;
step six: when Pe1, Pe2 and Pe3 are all greater than 0, the specific content of the generated charging prompt information is that "the vehicle needs to be charged, and charging stations Pe1, Pe2 and Pe3 can charge nearby";
step seven: when Pe1, Pe2, and Pe3 are all smaller than 0, the specific content of the generated charging prompt message is "the vehicle needs to be charged, and the nearby charging station is far away from the vehicle and please perform power saving processing".
7. The data acquisition-based electric vehicle battery safety monitoring system of claim 1, characterized in that: the specific processing procedure of the low power alarm information is as follows:
the method comprises the following steps: marking the full charge of the battery as CIs full ofMarking the real-time battery power information collected in real time as CFruit of Chinese wolfberry；
Step two: calculating real-time battery power information CFruit of Chinese wolfberryFull electric quantity CIs full ofThe ratio of the residual electric quantity to the residual electric quantity is obtainedRatio of；
Step three; when the ratio of the remaining capacity CRatio ofAnd generating low-power alarm information when the power is less than a preset value.
CN202010872587.0A 2020-08-26 2020-08-26 Electric vehicle battery safety monitoring system based on data acquisition Withdrawn CN112060973A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010872587.0A CN112060973A (en) 2020-08-26 2020-08-26 Electric vehicle battery safety monitoring system based on data acquisition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010872587.0A CN112060973A (en) 2020-08-26 2020-08-26 Electric vehicle battery safety monitoring system based on data acquisition

Publications (1)

Publication Number Publication Date
CN112060973A true CN112060973A (en) 2020-12-11

Family

ID=73658966

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010872587.0A Withdrawn CN112060973A (en) 2020-08-26 2020-08-26 Electric vehicle battery safety monitoring system based on data acquisition

Country Status (1)

Country Link
CN (1) CN112060973A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113671395A (en) * 2021-08-18 2021-11-19 郑玉华 Battery safety fault early warning system
CN114932842A (en) * 2022-07-21 2022-08-23 深圳市今朝时代股份有限公司 Electric vehicle battery management system and method based on data analysis
CN115452054A (en) * 2022-09-23 2022-12-09 杭州蓝海拓凡科技有限公司 Safety protection monitoring system of electric power cabinet
CN117239940A (en) * 2023-11-15 2023-12-15 国能世界(北京)科技有限公司 Magnetic capacitance energy storage chip device and electric energy management system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113671395A (en) * 2021-08-18 2021-11-19 郑玉华 Battery safety fault early warning system
CN114932842A (en) * 2022-07-21 2022-08-23 深圳市今朝时代股份有限公司 Electric vehicle battery management system and method based on data analysis
CN114932842B (en) * 2022-07-21 2022-11-29 深圳市今朝时代股份有限公司 Electric vehicle battery management system and method based on data analysis
CN115452054A (en) * 2022-09-23 2022-12-09 杭州蓝海拓凡科技有限公司 Safety protection monitoring system of electric power cabinet
CN117239940A (en) * 2023-11-15 2023-12-15 国能世界(北京)科技有限公司 Magnetic capacitance energy storage chip device and electric energy management system
CN117239940B (en) * 2023-11-15 2024-01-26 国能世界(北京)科技有限公司 Magnetic capacitance energy storage chip device and electric energy management system

Similar Documents

Publication Publication Date Title
CN112060973A (en) Electric vehicle battery safety monitoring system based on data acquisition
JP3142918U (en) Electric vehicle battery remote control device
CN103337882A (en) An automobile power battery monitoring system and a monitoring method thereof
CN102431465B (en) Protective control method for battery system of battery electric vehicle
CN103683428B (en) A kind of battery management system for electric automobile and electric automobile
CN106740213B (en) The charging method and device of active defense under a kind of electric car multiple gun charge mode
CN108872863B (en) Optimized and classified electric vehicle charging state monitoring method
CN105095975A (en) Electric vehicle charging service intelligent management system and management method
CN102673419A (en) Intelligent management system of lithium battery of electric automobile
CN105667326B (en) A kind of hybrid vehicle charging system and method with active defense function
CN105186049A (en) Intelligent management system and management method for battery pack
CN109204062A (en) The system and its monitoring method of a kind of real-time monitoring electric current, remaining capacity and insulation performance
CN105346406A (en) Vehicle-mounted system for acquiring charging information of electric automobile and working method of vehicle-mounted system
CN111098754A (en) Battery intelligent management system of new energy automobile
CN111483350A (en) Balance and micro-short circuit detection method for power battery pack
CN110091750A (en) A kind of new-energy automobile power battery safety system
AU2020202736A1 (en) Battery Test System
CN111071106A (en) Low-temperature charging management system and method for electric automobile
CN114069782A (en) Power supply control system and control method of lithium capacitor
CN202121029U (en) Battery management system of pure electric automobile
US20230019914A1 (en) Control system and power balancing method
CN110901397A (en) Lithium ion battery management system for new energy automobile
CN206003916U (en) A kind of battery management system
CN110614933A (en) Electric automobile remote management and control platform that charges
CN204915341U (en) A lead -acid batteries energy management device for commercial car

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication

Application publication date: 20201211

WW01 Invention patent application withdrawn after publication