CN113580989B - New energy electric vehicle overcharge system and control method - Google Patents

New energy electric vehicle overcharge system and control method Download PDF

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CN113580989B
CN113580989B CN202111147086.7A CN202111147086A CN113580989B CN 113580989 B CN113580989 B CN 113580989B CN 202111147086 A CN202111147086 A CN 202111147086A CN 113580989 B CN113580989 B CN 113580989B
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energy automobile
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CN113580989A (en
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王素英
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Sichuan Zhiduoxin New Energy Co ltd
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Sichuan Zhiduoxin New Energy Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • 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
    • 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
    • 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
    • B60L53/68—Off-site monitoring or control, e.g. remote control
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles
    • Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
    • Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
    • Y04S30/12—Remote or cooperative charging

Abstract

The invention discloses a new energy electric vehicle overcharge system and a control method thereof, wherein the overcharge system comprises: the intelligent charging terminal and the intelligent monitoring operation and maintenance platform; the intelligent charging terminal is in communication connection with the intelligent monitoring operation and maintenance platform through a wireless gateway; the intelligent charging terminal comprises a new energy automobile super-charging module, a monitoring module and a human-computer interaction module; the control method comprises the following steps: steps S1-S19. According to the invention, the new energy electric vehicle is rapidly charged through the new energy vehicle overcharge module, the charging process is monitored in real time, and the fault part is judged and evaluated, so that operation and maintenance personnel can accurately acquire the fault part, and the fault part can rapidly reach the installation position of the intelligent charging terminal with the fault through positioning information, so that the fault can be eliminated as soon as possible, and the influence time on users is reduced.

Description

New energy electric vehicle overcharge system and control method
Technical Field
The invention relates to the technical field of new energy automobile charging, in particular to a new energy electric automobile super-charging system and a control method.
Background
The new energy electric automobile comprises the following components: an electric drive and control system, a mechanical system such as a drive transmission, a working device for performing a predetermined task, and the like. The electric drive and control system is the core of an electric automobile and is the biggest difference from an internal combustion engine automobile. The electric driving and controlling system consists of driving motor, power source, speed regulating controller of motor, etc. Other devices of the electric vehicle are basically the same as those of the internal combustion engine vehicle.
The power supply provides electric energy for a driving motor of the electric automobile, and the electric motor converts the electric energy of the power supply into mechanical energy. At present, the most widely used power source is the lead-acid storage battery, but with the development of electric automobile technology, the lead-acid storage battery is gradually replaced by other storage batteries due to low energy, slow charging speed and short service life. The developing power supplies mainly comprise sodium-sulfur batteries, nickel-cadmium batteries, lithium batteries, fuel batteries and the like, and the application of the novel power supplies opens up a wide prospect for the development of electric automobiles.
The new forms of energy electric automobile core is charging, and its convenience lies in can installing charging device on the parking stall, but in the charging process, often automatic charging unmanned monitoring, unable trouble information in time obtains when breaking down, causes the different degree puzzlement for the user.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a new energy electric vehicle overcharge system and a control method for fault monitoring and early warning in a charging process.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows:
the utility model provides a new forms of energy electric automobile surpasses fills system, it includes: the intelligent charging terminal and the intelligent monitoring operation and maintenance platform; the intelligent charging terminal is in communication connection with the intelligent monitoring operation and maintenance platform through a wireless gateway;
the intelligent charging terminal comprises a new energy automobile super-charging module, a monitoring module and a man-machine interaction module, wherein the new energy automobile super-charging module is used for rapidly charging the new energy automobile;
the monitoring module is used for comprehensively monitoring the running state of the intelligent charging terminal and feeding monitoring information back to the intelligent monitoring operation and maintenance platform;
the human-computer interaction module is used for inputting vehicle information and driver information, feeding the vehicle information and the driver information back to the intelligent charging terminal and the intelligent monitoring operation and maintenance platform, and performing charging management;
the intelligent monitoring operation and maintenance platform comprises a data server and an APP terminal;
the data server is used for storing information collected by the monitoring module and the human-computer interaction module;
the APP terminal is used for being installed on a mobile phone of a driver, charging processes and charging information can be consulted in the charging process, and the charging pile is reserved before charging.
Furthermore, the intelligent monitoring operation and maintenance platform further comprises an early warning analysis platform for analyzing the data collected by the monitoring module and evaluating the charging state and the service life of the intelligent charging terminal.
Furthermore, the intelligent monitoring operation and maintenance platform further comprises a short message platform, an analysis result of the early warning analysis platform is sent to a mobile phone of an operation and maintenance person, and the operation and maintenance person maintains the intelligent charging terminal with the fault according to the short message information.
Furthermore, the human-computer interaction module comprises a touch display screen, a face input module and a vehicle information input module, the touch display screen is used for displaying a system of the face input module and the vehicle information input module, the face input module acquires information of a driver through face recognition, the vehicle information input module acquires images of a vehicle, a license plate and a vehicle type of the vehicle are recognized, and the images are fed back to the intelligent charging terminal.
Further, the monitoring module includes:
the monitoring camera is installed on the intelligent charging terminal and used for monitoring the installation area of the intelligent charging terminal;
the first voltage sensor is arranged between the charging plug and the new energy automobile super-charging module and used for monitoring and outputting the output voltage of the new energy automobile super-charging module;
the second voltage sensor is arranged on the charging plug and used for monitoring the voltage input into the new energy automobile;
the displacement sensor is arranged on a charging plug of the new energy automobile super-charging module and used for monitoring the displacement stroke of the charging plug;
the infrared induction sensors are arranged in the intelligent charging terminal and the charging plug and used for monitoring the heating conditions of the intelligent charging terminal and the charging plug;
and the GPS positioning module is used for positioning the position of the intelligent charging terminal.
Furthermore, the intelligent charging terminal also comprises an electric bicycle super-charging module, and the electric bicycle super-charging module and the new energy automobile super-charging module are both connected with the charging mode switching module; the electric bicycle super-charging module is used for rapidly charging the electric bicycle, and the charging mode switching module is used for switching the charging mode of the electric bicycle or the new energy automobile.
The control method of the overcharge system of the new energy electric automobile comprises the following steps:
s1: the method comprises the following steps that a driver drives a new energy automobile to a parking space where an intelligent charging terminal is installed, mobile phone information and face information of the driver are input, the driver pulls out a charging plug on the intelligent charging terminal, and the charging plug is inserted into a charging socket of the new energy automobile;
s2: the displacement sensor monitors the moving length L of the charging plug, judges whether the length L is larger than a length threshold value L ', the length threshold value L' is the maximum length of the charging plug capable of moving on a parking space,
s3: if the length L is larger than the threshold value L', the fact that the pulling length of the charging plug is too long is proved, the new energy automobile is not parked on the specified parking space, the energy automobile super-charging module is powered off, the intelligent charging terminal generates parking non-standard alarm information and sends the information to the intelligent monitoring operation and maintenance platform, the short message platform sends a short message prompting the standard parking to a mobile phone of a driver, and subtitles of the standard parking are displayed on a display screen;
s4: if the length L is less than or equal to the threshold value L', the fact that the pulling length of the charging plug is in a normal range is proved, the new energy automobile is stopped at a specified parking space, the energy automobile super-charging module is powered on, and the step S5 is executed;
s5: the second voltage sensor collects the voltage V once every a set time t1Voltage V to be applied1Rated input voltage V for charging energy automobile1 ratingMaking difference to obtain voltage fluctuation value V1 fluctuation in=|V1-V1 rating|；
S6: will voltage fluctuation value V1 fluctuation inWith a fluctuating threshold value V1 threshold valueComparing if the voltage fluctuation value V1 fluctuation inFluctuation threshold V is less than or equal to1 threshold valueIf the voltage fluctuation is within the normal range, the charging is continued; if the voltage fluctuation value V1 fluctuation in> fluctuation threshold V1 threshold valueIf yes, determining that the voltage fluctuation is abnormal, and executing step S7;
s7: the first voltage sensor collects primary voltage V2Voltage V to be applied2Output rated voltage V of energy automobile overcharge module during charging2 ratingMaking difference to obtain voltage fluctuation value V2 wave motion=|V2-V2 rating|；
S8: will voltage fluctuation value V2 wave motionWith a fluctuating threshold value V2 threshold valueComparing if the voltage fluctuation value V2 wave motionFluctuation threshold V is less than or equal to2 threshold valueIf yes, determining that the charging plug has a fault, and executing step S9; if the voltage fluctuation value V2 wave motion> fluctuation threshold V2 threshold valueIf yes, judging that the energy vehicle overcharge module has a fault, and executing the step S11;
s9: the energy automobile super-charging module is powered off, the intelligent charging terminal generates a fault signal of the charging plug, the GPS positioning module collects positioning information of the intelligent charging plug, generates an alarm file containing the fault signal and the positioning information of the charging plug and sends the alarm file to the intelligent monitoring operation and maintenance platform;
s10, the intelligent monitoring operation and maintenance platform reads the fault signal and the positioning information of the charging plug in the alarm file, and displays the positioning coordinate on a GIS map set up on the early warning analysis platform; the short message platform generates a short message containing a fault signal and positioning information of the charging plug and sends the short message to operation and maintenance personnel;
s11: the energy automobile overcharging module is powered off, the intelligent charging terminal generates a fault signal of the new energy automobile overcharging module, the GPS positioning module acquires positioning information of the new energy automobile overcharging module, generates an alarm file containing the fault signal and the positioning information of the new energy automobile overcharging module and sends the alarm file to the intelligent monitoring operation and maintenance platform;
s12: the intelligent monitoring operation and maintenance platform reads the fault signal and the positioning information of the new energy automobile overcharge module in the alarm file, and displays a positioning coordinate on a GIS map built on the early warning analysis platform; and the short message platform generates a short message containing the fault signal and the positioning information of the new energy automobile overcharge module and sends the short message to operation and maintenance personnel.
Further, the method also comprises the following steps:
s13: the voltage value V acquired by the second voltage sensor at each time1All the signals are sent to an early warning analysis platform and stored in an output voltage folder of the charging plug;
s14: extracting the output voltage range of the charging plug in a period of time TVoltage value (V) in the clamp11，V12，···，V1n) T is more than 2T, and n is the frequency of collecting the voltage value by the second voltage sensor within the time T;
s15: calculating the average value V of the voltage values acquired in the time period TAverage=（V11+V12+···+V1n）/n；
S16: average value VAverageTo rated input voltage V1 ratingMaking a difference;
s17: if VAverage-V1 ratingIf the voltage is more than 0, the voltage of the charging plug is judged to be higher during charging, the charging plug is easy to heat, and then the infrared induction sensor is arranged at intervals of a period of time t in the charging process0Collecting the temperature of the charging plug once, monitoring the temperature of the charging plug, and t0＜t；
S18: if VAverage-V1 ratingIf the voltage is less than 0, the voltage of the charging plug is judged to be too low during charging, the output power of the charging plug is insufficient, and then the first voltage sensor is used for measuring the output power of the charging plug at intervals of t in the charging process0Collecting primary voltage, monitoring output voltage of the new energy automobile overcharge module, and t0＜t；
S19: if VAverage-V1 ratingAnd if not, judging that the charging plug works normally during charging.
The invention has the beneficial effects that: according to the invention, the new energy electric vehicle is rapidly charged through the new energy vehicle overcharge module, the charging process is monitored in real time, and the fault part is judged and evaluated, so that operation and maintenance personnel can accurately acquire the fault part, and the fault part can rapidly reach the installation position of the intelligent charging terminal with the fault through positioning information, so that the fault can be eliminated as soon as possible, and the influence time on users is reduced.
Meanwhile, the use state of the charging plug is evaluated by monitoring the long-time charging state, and a component which is evaluated to be in danger is monitored, so that the potential risk is avoided; meanwhile, the monitored sensor works when the sensor fails or has a risk of failure, so that energy consumption is saved, and the service life of the sensor is prolonged.
Drawings
Fig. 1 is a schematic block diagram of a overcharge system of a new energy electric vehicle.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the invention as defined and defined in the appended claims, and all matters produced by the invention using the inventive concept are protected.
As shown in fig. 1, the overcharge system for the new energy electric vehicle in the scheme comprises: the intelligent charging terminal and the intelligent monitoring operation and maintenance platform; the intelligent charging terminal and the intelligent monitoring operation and maintenance platform are in communication connection through the wireless gateway, and the wireless gateway can adopt 4G or 5G signals for signal transmission.
The intelligent charging terminal comprises a new energy automobile super-charging module, a monitoring module and a human-computer interaction module, wherein the new energy automobile super-charging module is used for rapidly charging a new energy automobile, so that the charging time of the new energy electric automobile is shortened;
the monitoring module is used for comprehensively monitoring the running state of the intelligent charging terminal and feeding monitoring information back to the intelligent monitoring operation and maintenance platform; the human-computer interaction module is used for inputting vehicle information and driver information, feeding the vehicle information and the driver information back to the intelligent charging terminal and the intelligent monitoring operation and maintenance platform, and performing charging management.
The intelligent monitoring operation and maintenance platform comprises a data server and an APP terminal;
the data server is used for storing information collected by the monitoring module and the human-computer interaction module; the APP terminal is used for being installed on a mobile phone of a driver, charging progress and charging information can be looked up in the charging process, charging pile charging is reserved before charging, and the APP terminal is convenient to use.
The intelligent monitoring operation and maintenance platform further comprises an early warning analysis platform for analyzing the data collected by the monitoring module and evaluating the charging state and the service life of the intelligent charging terminal. The intelligent monitoring operation and maintenance platform further comprises a short message platform, the analysis result of the early warning analysis platform is sent to a mobile phone of operation and maintenance personnel, and the operation and maintenance personnel maintain the intelligent charging terminal with faults according to the short message information.
The human-computer interaction module comprises a touch display screen, a face input module and a vehicle information input module, wherein the touch display screen is used for displaying a system of the face input module and the vehicle information input module, the face input module acquires information of a driver through face recognition, the vehicle information input module acquires images of a vehicle, a license plate and a vehicle type of the vehicle are recognized, and the images are fed back to the intelligent charging terminal.
The monitoring module of this scheme includes:
the monitoring camera is installed on the intelligent charging terminal and used for monitoring the installation area of the intelligent charging terminal;
the first voltage sensor is arranged between the charging plug and the new energy automobile super-charging module and used for monitoring and outputting the output voltage of the new energy automobile super-charging module;
the second voltage sensor is arranged on the charging plug and used for monitoring the voltage input into the new energy automobile;
the displacement sensor is arranged on a charging plug of the new energy automobile super-charging module and used for monitoring the displacement stroke of the charging plug;
the infrared induction sensors are arranged in the intelligent charging terminal and the charging plug and used for monitoring the heating conditions of the intelligent charging terminal and the charging plug;
and the GPS positioning module is used for positioning the position of the intelligent charging terminal.
The intelligent charging terminal further comprises an electric bicycle super-charging module, and the electric bicycle super-charging module and the new energy automobile super-charging module are both connected with the charging mode switching module; the electric bicycle super-charging module is used for charging the electric bicycle quickly, and the charging mode switching module is used for switching the charging mode of the electric bicycle or a new energy automobile and can be used for charging the electric bicycle.
The control method of the overcharge system of the new energy electric automobile comprises the following steps:
s1: the method comprises the following steps that a driver drives a new energy automobile to a parking space where an intelligent charging terminal is installed, mobile phone information and face information of the driver are input, the driver pulls out a charging plug on the intelligent charging terminal, and the charging plug is inserted into a charging socket of the new energy automobile;
s2: the displacement sensor monitors the moving length L of the charging plug, and judges whether the length L is greater than a length threshold value L ', wherein the length threshold value L' is the maximum length of the charging plug capable of moving on a parking space;
s3: if the length L is larger than the threshold value L', the fact that the pulling length of the charging plug is too long is proved, the new energy automobile is not parked on the specified parking space, the energy automobile super-charging module is powered off, the intelligent charging terminal generates parking non-standard alarm information and sends the information to the intelligent monitoring operation and maintenance platform, the short message platform sends a short message prompting the standard parking to a mobile phone of a driver, and subtitles of the standard parking are displayed on a display screen; avoid the driver not to stop charging on the exact parking stall, the surveillance camera head can't monitor the charging process, can cause the influence for neighbouring electric pile of filling.
S4: if the length L is less than or equal to the threshold value L', the fact that the pulling length of the charging plug is in a normal range is proved, the new energy automobile is stopped at a specified parking space, the energy automobile super-charging module is powered on, and the step S5 is executed;
s5: the second voltage sensor collects the voltage V once every a set time t1Voltage V to be applied1Rated input voltage V for charging energy automobile1 ratingMaking difference to obtain voltage fluctuation value V1 fluctuation in=|V1-V1 rating|；
S6: will voltage fluctuation value V1 fluctuation inWith a fluctuating threshold value V1 threshold valueComparing if the voltage fluctuation value V1 fluctuation inFluctuation threshold V is less than or equal to1 threshold valueIf the voltage fluctuation is within the normal range, the charging is continued; if the voltage fluctuation value V1 fluctuation in> fluctuation thresholdValue V1 threshold valueIf yes, determining that the voltage fluctuation is abnormal, and executing step S7;
s7: the first voltage sensor collects primary voltage V2Voltage V to be applied2Output rated voltage V of energy automobile overcharge module during charging2 ratingMaking difference to obtain voltage fluctuation value V2 wave motion=|V2-V2 rating|；
S8: will voltage fluctuation value V2 wave motionWith a fluctuating threshold value V2 threshold valueComparing if the voltage fluctuation value V2 wave motionFluctuation threshold V is less than or equal to2 threshold valueIf yes, determining that the charging plug has a fault, and executing step S9; if the voltage fluctuation value V2 wave motion> fluctuation threshold V2 threshold valueIf yes, judging that the energy vehicle overcharge module has a fault, and executing the step S11;
s9: the energy automobile super-charging module is powered off, the intelligent charging terminal generates a fault signal of the charging plug, the GPS positioning module collects positioning information of the intelligent charging plug, generates an alarm file containing the fault signal and the positioning information of the charging plug and sends the alarm file to the intelligent monitoring operation and maintenance platform;
s10, the intelligent monitoring operation and maintenance platform reads the fault signal and the positioning information of the charging plug in the alarm file, and displays the positioning coordinate on a GIS map set up on the early warning analysis platform; the short message platform generates a short message containing a fault signal and positioning information of the charging plug and sends the short message to operation and maintenance personnel;
s11: the energy automobile overcharging module is powered off, the intelligent charging terminal generates a fault signal of the new energy automobile overcharging module, the GPS positioning module acquires positioning information of the new energy automobile overcharging module, generates an alarm file containing the fault signal and the positioning information of the new energy automobile overcharging module and sends the alarm file to the intelligent monitoring operation and maintenance platform;
s12: the intelligent monitoring operation and maintenance platform reads the fault signal and the positioning information of the new energy automobile overcharge module in the alarm file, and displays a positioning coordinate on a GIS map built on the early warning analysis platform; and the short message platform generates a short message containing the fault signal and the positioning information of the new energy automobile overcharge module and sends the short message to operation and maintenance personnel.
The scheme also comprises the following steps:
s13: the voltage value V acquired by the second voltage sensor at each time1All the signals are sent to an early warning analysis platform and stored in an output voltage folder of the charging plug;
s14: extracting a voltage value (V) in an output voltage folder of a charging plug within a period of time T11，V12，···，V1n) T is more than 2T, and n is the frequency of collecting the voltage value by the second voltage sensor within the time T;
s15: calculating the average value V of the voltage values acquired in the time period TAverage=（V11+V12+···+V1n）/n；
S16: average value VAverageTo rated input voltage V1 ratingMaking a difference;
s17: if VAverage-V1 ratingIf the voltage is more than 0, the voltage of the charging plug is judged to be higher during charging, the charging plug is easy to heat, and then the infrared induction sensor is arranged at intervals of a period of time t in the charging process0Collecting the temperature of the charging plug once, monitoring the temperature of the charging plug, and t0＜t；
S18: if VAverage-V1 ratingIf the voltage is less than 0, the voltage of the charging plug is judged to be too low during charging, the output power of the charging plug is insufficient, and then the first voltage sensor is used for measuring the output power of the charging plug at intervals of t in the charging process0Collecting primary voltage, monitoring output voltage of the new energy automobile overcharge module, and t0＜t；
S19: if VAverage-V1 ratingAnd if not, judging that the charging plug works normally during charging.
The invention has the beneficial effects that: according to the invention, the new energy electric vehicle is rapidly charged through the new energy vehicle overcharge module, the charging process is monitored in real time, and the fault part is judged and evaluated, so that operation and maintenance personnel can accurately acquire the fault part, and the fault part can rapidly reach the installation position of the intelligent charging terminal with the fault through positioning information, so that the fault can be eliminated as soon as possible, and the influence time on users is reduced.
Meanwhile, the use state of the charging plug is evaluated by monitoring the long-time charging state, and a component which is evaluated to be in danger is monitored, so that the potential risk is avoided; meanwhile, the monitored sensor works when the sensor fails or has a risk of failure, so that energy consumption is saved, and the service life of the sensor is prolonged.

Claims (2)

1. A control method of a new energy electric vehicle overcharge system comprises the following steps: the intelligent charging terminal and the intelligent monitoring operation and maintenance platform; the intelligent charging terminal is in communication connection with the intelligent monitoring operation and maintenance platform through a wireless gateway;
the intelligent charging terminal comprises a new energy automobile super-charging module, a monitoring module and a man-machine interaction module, wherein the new energy automobile super-charging module is used for rapidly charging a new energy automobile;
the monitoring module is used for comprehensively monitoring the running state of the intelligent charging terminal and feeding monitoring information back to the intelligent monitoring operation and maintenance platform;
the human-computer interaction module is used for inputting vehicle information and driver information, feeding the vehicle information and the driver information back to the intelligent charging terminal and the intelligent monitoring operation and maintenance platform, and performing charging management;
the intelligent monitoring operation and maintenance platform comprises a data server and an APP terminal;
the data server is used for storing information collected by the monitoring module and the human-computer interaction module;
the APP terminal is installed on a mobile phone of a driver, a charging process and charging information can be consulted in the charging process, and a charging pile is reserved before charging;
the intelligent monitoring operation and maintenance platform also comprises an early warning analysis platform which is used for analyzing the data collected by the monitoring module and evaluating the charging state and the service life of the intelligent charging terminal;
the intelligent monitoring operation and maintenance platform also comprises a short message platform, the analysis result of the early warning analysis platform is sent to a mobile phone of an operation and maintenance person, and the operation and maintenance person maintains the intelligent charging terminal with the fault according to the short message information;
the human-computer interaction module comprises a touch display screen, a face input module and a vehicle information input module, wherein the touch display screen is used for displaying system interfaces of the face input module and the vehicle information input module, the face input module acquires information of a driver through face recognition, and the vehicle information input module acquires images of a vehicle, recognizes a license plate and a vehicle type of the vehicle and feeds back the images to the intelligent charging terminal;
the monitoring module includes:
the monitoring camera is installed on the intelligent charging terminal and used for monitoring the installation area of the intelligent charging terminal;
the first voltage sensor is arranged between the charging plug and the new energy automobile super-charging module and used for monitoring and outputting the output voltage of the new energy automobile super-charging module;
the second voltage sensor is arranged on the charging plug and used for monitoring the voltage input into the new energy automobile;
the displacement sensor is installed on a charging plug of the new energy automobile super-charging module and used for monitoring the displacement stroke of the charging plug;
the infrared induction sensors are arranged in the intelligent charging terminal and the charging plug and used for monitoring the heating conditions of the intelligent charging terminal and the charging plug;
the GPS positioning module is used for positioning the position of the intelligent charging terminal;
the intelligent charging terminal also comprises an electric bicycle super-charging module, and the electric bicycle super-charging module and the new energy automobile super-charging module are both connected with the charging mode switching module; the electric bicycle super-charging module is used for rapidly charging an electric bicycle, and the charging mode switching module is used for switching the charging mode of the electric bicycle or a new energy automobile;
the method is characterized by comprising the following steps:
s1: the method comprises the following steps that a driver drives a new energy automobile to a parking space where an intelligent charging terminal is installed, mobile phone information and face information of the driver are input, the driver pulls out a charging plug on the intelligent charging terminal, and the charging plug is inserted into a charging socket of the new energy automobile;
s2: the displacement sensor monitors the moving length L of the charging plug, and judges whether the length L is greater than a length threshold value L ', wherein the length threshold value L' is the maximum length of the charging plug capable of moving on a parking space;
s3: if the length L is larger than the threshold value L', the fact that the pulling length of the charging plug is too long is proved, the new energy automobile is not parked on the specified parking space, the energy automobile super-charging module is powered off, the intelligent charging terminal generates parking non-standard alarm information and sends the information to the intelligent monitoring operation and maintenance platform, the short message platform sends a short message prompting the standard parking to a mobile phone of a driver, and subtitles of the standard parking are displayed on a display screen;
s4: if the length L is less than or equal to the threshold value L', the fact that the pulling length of the charging plug is in a normal range is proved, the new energy automobile is stopped at a specified parking space, the energy automobile super-charging module is powered on, and the step S5 is executed;
s5: the second voltage sensor collects the voltage V once every a set time t1Voltage V to be applied1Rated input voltage V for charging energy automobile1 ratingMaking difference to obtain voltage fluctuation value V1 fluctuation in=|V1-V1 rating|；
S6: will voltage fluctuation value V1 fluctuation inWith a fluctuating threshold value V1 threshold valueComparing if the voltage fluctuation value V1 fluctuation inFluctuation threshold V is less than or equal to1 threshold valueIf the voltage fluctuation is within the normal range, the charging is continued; if the voltage fluctuation value V1 fluctuation in> fluctuation threshold V1 threshold valueIf yes, determining that the voltage fluctuation is abnormal, and executing step S7;
s7: the first voltage sensor collects primary voltage V2Voltage V to be applied2Output rated voltage V of energy automobile overcharge module during charging2 ratingMaking difference to obtain voltage fluctuation value V2 wave motion=|V2-V2 rating|；
S8: will voltage fluctuation value V2 wave motionAnd wave motionThreshold value V2 threshold valueComparing if the voltage fluctuation value V2 wave motionFluctuation threshold V is less than or equal to2 threshold valueIf yes, determining that the charging plug has a fault, and executing step S9; if the voltage fluctuation value V2 wave motion> fluctuation threshold V2 threshold valueIf yes, judging that the energy vehicle overcharge module has a fault, and executing the step S11;
s9: the energy automobile super-charging module is powered off, the intelligent charging terminal generates a fault signal of the charging plug, the GPS positioning module collects positioning information of the intelligent charging plug, generates an alarm file containing the fault signal and the positioning information of the charging plug and sends the alarm file to the intelligent monitoring operation and maintenance platform;
s10, the intelligent monitoring operation and maintenance platform reads the fault signal and the positioning information of the charging plug in the alarm file, and displays the positioning coordinate on a GIS map set up on the early warning analysis platform; the short message platform generates a short message containing a fault signal and positioning information of the charging plug and sends the short message to operation and maintenance personnel;
s11: the energy automobile overcharging module is powered off, the intelligent charging terminal generates a fault signal of the new energy automobile overcharging module, the GPS positioning module acquires positioning information of the new energy automobile overcharging module, generates an alarm file containing the fault signal and the positioning information of the new energy automobile overcharging module and sends the alarm file to the intelligent monitoring operation and maintenance platform;
s12: the intelligent monitoring operation and maintenance platform reads the fault signal and the positioning information of the new energy automobile overcharge module in the alarm file, and displays a positioning coordinate on a GIS map built on the early warning analysis platform; and the short message platform generates a short message containing the fault signal and the positioning information of the new energy automobile overcharge module and sends the short message to operation and maintenance personnel.
2. The control method of the overcharge system for new-energy electric vehicles according to claim 1, further comprising the steps of:
s13: the voltage value V acquired by the second voltage sensor at each time1All the signals are sent to an early warning analysis platform and stored in an output voltage folder of the charging plug;
s14: extracting a voltage value (V) in an output voltage folder of a charging plug within a period of time T11，V12，···，V1n) T is more than 2T, and n is the frequency of collecting the voltage value by the second voltage sensor within the time T;
s15: calculating the average value V of the voltage values acquired in the time period TAverage=（V11+V12+···+V1n）/n；
S16: average value VAverageTo rated input voltage V1 ratingMaking a difference;
s17: if VAverage-V1 ratingIf the voltage is more than 0, the voltage of the charging plug is judged to be higher during charging, the charging plug is easy to heat, and then the infrared induction sensor is arranged at intervals of a period of time t in the charging process0Collecting the temperature of the charging plug once, monitoring the temperature of the charging plug, and t0＜t；
S18: if VAverage-V1 ratingIf the voltage is less than 0, the voltage of the charging plug is judged to be too low during charging, the output power of the charging plug is insufficient, and then the first voltage sensor is used for measuring the output power of the charging plug at intervals of t in the charging process0Collecting primary voltage, monitoring output voltage of the new energy automobile overcharge module, and t0＜t；
S19: if VAverage-V1 ratingAnd if not, judging that the charging plug works normally during charging.
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