CN115091967A - Electric vehicle and energy management method - Google Patents

Electric vehicle and energy management method Download PDF

Info

Publication number
CN115091967A
CN115091967A CN202210635707.4A CN202210635707A CN115091967A CN 115091967 A CN115091967 A CN 115091967A CN 202210635707 A CN202210635707 A CN 202210635707A CN 115091967 A CN115091967 A CN 115091967A
Authority
CN
China
Prior art keywords
electric
energy
power battery
energy storage
battery
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.)
Pending
Application number
CN202210635707.4A
Other languages
Chinese (zh)
Inventor
史来锋
苍松
崔雨心
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.)
Dongfeng Motor Corp
Original Assignee
Dongfeng Motor Corp
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 Dongfeng Motor Corp filed Critical Dongfeng Motor Corp
Priority to CN202210635707.4A priority Critical patent/CN115091967A/en
Publication of CN115091967A publication Critical patent/CN115091967A/en
Pending 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
    • B60L8/00—Electric propulsion with power supply from forces of nature, e.g. sun or wind
    • B60L8/003—Converting light into electric energy, e.g. by using photo-voltaic systems
    • 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
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by 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
    • 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
    • B60L55/00—Arrangements for supplying energy stored within a vehicle to a power network, i.e. vehicle-to-grid [V2G] arrangements
    • 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]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The application discloses electric vehicle and energy management method relates to the technical field of vehicles, can increase electric vehicle's electric quantity supply source, can guarantee electric vehicle's ground electric quantity supply, avoids the unable normal use of vehicle because of charging untimely arouses, and then causes the potential safety hazard or even incident. An electric vehicle comprising: the energy storage system comprises a power battery; the photovoltaic power generation system is used for converting light energy into electric energy and storing the obtained electric energy in the energy storage system; and the energy management system is used for controlling the photovoltaic power generation system to charge the power battery based on the electric quantity of the power battery, acquiring electric energy from the charging pile through a V2G module to charge the power battery, and controlling the energy storage system to charge the charging pile through a V2G module.

Description

Electric vehicle and energy management method
Technical Field
The application relates to the technical field of vehicles, in particular to an electric vehicle and an energy management method.
Background
At present, with the continuous development of new energy automobiles, the market share of electric vehicles is higher and higher, and therefore, the matched charging service of the electric vehicles is also rapidly developed.
However, the power battery of the existing electric vehicle and the power supply source of the electric equipment on the vehicle mainly depend on charging of the charging pile, and if the electric vehicle cannot reach the charging pile before the electric quantity of the electric vehicle is exhausted, the electric vehicle cannot be normally used, so that traffic safety hazards are easily caused, and even safety accidents are caused.
Disclosure of Invention
The embodiment of the application provides an electric vehicle and an energy management method, which can increase the electric quantity supply source of the electric vehicle, can ensure the ground electric quantity supply of the electric vehicle, and avoid the problem that the vehicle cannot be normally used due to untimely charging, so that potential safety hazards and even safety accidents are caused.
In a first aspect of embodiments of the present application, there is provided an electric vehicle including:
the energy storage system comprises a power battery;
the photovoltaic power generation system is used for converting light energy into electric energy and storing the obtained electric energy in the energy storage system;
and the energy management system is used for controlling the photovoltaic power generation system to charge the power battery based on the electric quantity of the power battery, acquiring electric energy from the charging pile through a V2G module to charge the power battery, and controlling the energy storage system to charge the charging pile through a V2G module.
In some embodiments, the energy storage system further comprises:
the battery management unit is used for monitoring the running state of the power battery, controlling the energy storage system to stop when the power battery is abnormal, and sending alarm information;
the photovoltaic power generation system includes:
a photovoltaic panel for converting light energy into electrical energy;
the photovoltaic panel is arranged on the outer side of the roof and/or the engine hood and/or the trunk lid and/or the door of the electric vehicle.
In some embodiments, the energy storage system further comprises:
an energy storage battery;
the energy management system is used for controlling the photovoltaic power generation system to charge the power battery under the condition that the electric quantity of the power battery is smaller than a first threshold value, and controlling the photovoltaic power generation system to charge the energy storage battery under the condition that the electric quantity of the power battery is larger than a second threshold value, wherein the second threshold value is smaller than the first threshold value;
the energy management system is used for controlling the energy storage battery and/or the power battery to charge the charging pile through the V2G module according to the electric energy price of the power grid side, the electric quantity of the energy storage battery and the electric quantity of the power battery, wherein the electric energy price of the power grid side is obtained by the V2G module from the power grid side.
In some embodiments, the photovoltaic power generation system is electrically connected with the electric equipment of the electric vehicle for supplying power to the electric equipment; and/or the presence of a gas in the gas,
the energy storage battery is electrically connected with the electric equipment and used for supplying power to the electric equipment.
In some embodiments, the V2G module includes:
the wireless charging receiving assembly is used for receiving the electric energy transmitted by the charging pile and transmitting the received electric energy to the power battery;
and the wireless discharge transmitting assembly is used for transmitting the electric energy of the energy storage system to the charging pile.
In some embodiments, the electric vehicle further comprises:
the wireless communication module is used for carrying out signal interaction between the electric vehicle and the intelligent client;
the wireless communication module is in communication connection with the energy management system.
In a second aspect of the embodiments of the present application, there is provided an energy management method for an electric vehicle, which is applied to the electric vehicle according to the first aspect, the energy management method including:
controlling a photovoltaic power generation system to charge a power battery based on the electric quantity of the power battery according to a photovoltaic operation instruction, wherein the photovoltaic operation instruction is used for controlling the operation of the photovoltaic power generation system;
under the condition that the charging rate of the photovoltaic power generation system to the power battery is smaller than a set charging rate, acquiring electric energy from a charging pile through a V2G module to charge the power battery;
and controlling the energy storage system to charge the charging pile through a V2G module based on the electric quantity of the energy storage system according to the discharging instruction.
In some embodiments, the controlling, according to the photovoltaic operation instruction and based on the electric quantity of the power battery, the photovoltaic power generation system to charge the power battery includes:
according to the photovoltaic operation instruction, under the condition that the electric quantity of the power battery is smaller than a first threshold value, controlling the photovoltaic power generation system to charge the power battery;
and under the condition that the electric quantity of the power battery is greater than a second threshold value, controlling the photovoltaic power generation system to charge the energy storage battery, wherein the second threshold value is smaller than the first threshold value.
In some embodiments, the method for energy management of an electric vehicle further comprises:
receiving a charging instruction or a discharging instruction issued by an intelligent client through a wireless communication module, wherein the discharging instruction is generated according to the electric energy price of the power grid side and the electric quantity of the energy storage system;
and based on the charging instruction, acquiring electric energy from the charging pile through the V2G module to charge the power battery.
In some embodiments, the method for energy management of an electric vehicle further comprises:
under the condition that the electric quantity of the power battery is larger than the second threshold value and the electric quantity of the energy storage battery is smaller than a third threshold value, controlling the power battery to charge the energy storage battery;
and under the condition that the electric quantity of the power battery is greater than the second threshold value and the electric quantity of the energy storage battery is greater than a fourth threshold value, controlling the power battery and/or the power battery to charge the charging pile through a V2G module, wherein the fourth threshold value is greater than the third threshold value.
According to the electric vehicle and the energy management method, the energy storage system, the photovoltaic power generation system and the V2G module are integrated together, so that the electric vehicle can take light energy as one of sources of electric energy supply, photovoltaic power generation and energy storage of the vehicle are realized, and the electric vehicle is clean, environment-friendly, energy-saving and emission-reducing. The electric quantity supply source of the electric vehicle can be increased, the ground electric quantity supply of the electric vehicle can be guaranteed, and the situation that the vehicle cannot be normally used due to untimely charging is avoided, so that potential safety hazards and even safety accidents are caused. Set up energy management system, can be based on power battery's electric quantity, control photovoltaic power generation system charges to power battery, obtain the electric energy in order to charge power battery from filling electric pile through V2G module to and control energy storage system charges through V2G module to filling electric pile. The power battery can obtain the electric energy supply from the photovoltaic power generation system, and the power battery can also obtain the electric energy supply from charging pile through V2G module. On the contrary, energy storage system can also be backward to filling electric pile discharge to filling electric pile and charging, can sell electric pile with the unnecessary electric quantity of electric vehicle, improve energy utilization.
Drawings
Fig. 1 is a schematic structural block diagram of an electric vehicle according to an embodiment of the present application;
fig. 2 is a schematic structural block diagram of another electric vehicle provided in an embodiment of the present application;
fig. 3 is a schematic flowchart of an energy management method for an electric vehicle according to an embodiment of the present application.
Detailed Description
In order to better understand the technical solutions provided by the embodiments of the present specification, the technical solutions of the embodiments of the present specification are described in detail below with reference to the drawings and specific embodiments, and it should be understood that the specific features in the embodiments and examples of the present specification are detailed descriptions of the technical solutions of the embodiments of the present specification, and are not limitations on the technical solutions of the embodiments of the present specification, and the technical features in the embodiments and examples of the present specification may be combined with each other without conflict.
In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the use of the phrase "comprising a. -. said" to define an element does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. The term "two or more" includes the case of two or more.
At present, with the continuous development of new energy automobiles, the market share of electric vehicles is higher and higher, and therefore, the matched charging service of the electric vehicles is also rapidly developed. However, the power battery of the existing electric vehicle and the power supply source of the electric equipment on the vehicle mainly depend on charging of the charging pile, and if the electric vehicle cannot reach the charging pile before the electric quantity of the electric vehicle is exhausted, the electric vehicle cannot be normally used, so that traffic safety hazards are easily caused, and even safety accidents are caused.
In view of this, the embodiment of the application provides an electric vehicle and an energy management method, which can increase the electric quantity supply source of the electric vehicle, can ensure the ground electric quantity supply of the electric vehicle, and avoid the situation that the vehicle cannot be normally used due to untimely charging, thereby causing potential safety hazards and even safety accidents.
In a first aspect of an embodiment of the present application, an electric vehicle is provided, and fig. 1 is a schematic structural block diagram of an electric vehicle provided in an embodiment of the present application. As shown in fig. 1, an electric vehicle provided in an embodiment of the present application includes: the energy storage system 100 includes a power battery 110, and the power battery 110 is used for providing running power of the electric vehicle. The photovoltaic power generation system 200 is used for converting light energy into electric energy and storing the obtained electric energy in the energy storage system 100; the photovoltaic power generation system 200 can utilize light energy to generate power, so that the electric energy source of the electric vehicle is increased, and the system is clean, environment-friendly, energy-saving and emission-reducing. Energy storage system 100 may store electrical energy generated by a photovoltaic power generation system. The energy management system 300 is configured to control the photovoltaic power generation system 200 to charge the power battery 110 based on the electric quantity of the power battery 110, obtain electric energy from the charging pile 500 through the V2G module 400 to charge the power battery 110, and control the energy storage system 100 to charge the charging pile 500 through the V2G module 400. The power battery 110 can obtain electric energy supply from the photovoltaic power generation system 200, and the power battery 110 can also obtain electric energy supply from the charging pile 500 through the V2G module 400. On the contrary, energy storage system can also be backward to filling electric pile 500 and discharge to filling electric pile 500 and charging, can sell electric pile 500 with the unnecessary electric quantity of electric vehicle, improve energy utilization.
It should be noted that the V2G (Vehicles To Grid, vehicle Grid bidirectional interaction) technology can realize the interaction of energy and information between the Grid and the electric vehicle. With the implementation of the V2G technology, an electric vehicle can not only obtain electric energy from the grid, but also send the electric energy to the grid. Combine together wireless charging technology and V2G, will bring very big facility for electric vehicle user, the user only need stop the car in wireless charging parking stall, inputs the individualized setting of V2G with dedicated cell-phone APP, and the vehicle just can start V2G automatically to charge and discharge to ensure enough electric quantity to satisfy the trip demand next time before the user uses the car. Meanwhile, the photovoltaic, energy storage and wireless V2G integrated device is designed, photovoltaic clean energy power can be fully utilized to charge the automobile, redundant photovoltaic power storage is used for an energy storage system, the photovoltaic power can be supplemented in a low illumination period, and the effect of maximizing the utilization of the clean energy is achieved.
The electric vehicle provided in the embodiment of the present application may be an electric car, an electric bicycle, an electric unicycle, an electric tricycle, an electric scooter, or the like, and the embodiment of the present application is not particularly limited.
Generally, the conventional electric vehicle can only obtain electric energy supply from the charging pile in one direction, and the bidirectional mutual transmission of the electric energy between the electric vehicle and the charging pile is difficult to realize; the existing electric vehicle does not realize photovoltaic, energy storage and bidirectional charging and discharging integration technology, the electric energy supply source of the vehicle is single, and the safe running of the vehicle is difficult to continuously guarantee.
The electric vehicle provided by the embodiment of the application integrates the energy storage system 100, the photovoltaic power generation system 200 and the V2G module 400 together, so that the electric vehicle can take light energy as one of sources of electric energy supply, photovoltaic power generation and energy storage of the vehicle are realized, and the electric vehicle is clean, environment-friendly, energy-saving and emission-reducing. The electric quantity supply source of the electric vehicle can be increased, the ground electric quantity supply of the electric vehicle can be guaranteed, and the situation that the vehicle cannot be normally used due to untimely charging is avoided, so that potential safety hazards and even safety accidents are caused. The energy management system 300 is arranged, and can control the photovoltaic power generation system 200 to charge the power battery 110 based on the electric quantity of the power battery 110, obtain electric energy from the charging pile 500 through the V2G module 400 to charge the power battery 110, and control the energy storage system 100 to charge the charging pile 500 through the V2G module 400. The power battery 110 can obtain electric energy supply from the photovoltaic power generation system 200, and the power battery 110 can also obtain electric energy supply from the charging pile 500 through the V2G module 400. On the contrary, energy storage system can also be backward to filling electric pile 500 and discharge to filling electric pile 500 and charging, can sell electric pile 500 with the unnecessary electric quantity of electric vehicle, improve energy utilization.
In some embodiments, fig. 2 is a schematic block diagram of another electric vehicle provided in an example of the present application. As shown in fig. 2, the energy storage system 100 further includes: the energy storage cell 120, the energy storage cell 120 may be electrically connected with the photovoltaic power generation system 200, and the energy storage cell 120 may be electrically connected with the V2G module 400 and the power cell 110. The energy management system 300 may be configured to control the photovoltaic power generation system 200 to charge the power battery 110 if the power of the power battery 110 is less than a first threshold, and control the photovoltaic power generation system 200 to charge the energy storage battery 120 if the power of the power battery 110 is greater than a second threshold, where the second threshold is less than the first threshold. It can be understood that, in the case that the electric quantity of the power battery 110 is greater than the second threshold, the electric quantity of the power battery 110 is sufficiently large, the charging current of the power battery 110 may be reduced, and the charging of the energy storage battery 120 is started at the same time, until the electric quantity of the power battery reaches 100%, the charging of the power battery may be stopped, and the charging of the energy storage battery 120 may be continued. It should be noted that the value of the first threshold may be 100%, that is, the photovoltaic power generation system 200 may continue to charge the power battery 110 until the electric quantity of the power battery 110 reaches 100%. Illustratively, the value of the second threshold may be 98%.
With continued reference to fig. 2, the energy management system 300 may be configured to charge the charging pile 500 through the V2G module 400 according to the grid-side electric energy price, the electric quantity of the energy storage battery, and the electric quantity of the power battery, wherein the grid-side electric energy price is obtained from the grid side by the V2G module 400. Under the condition that the electric quantity of the power battery 110 is enough, the charging pile 500 can be charged through the V2G module 400, that is, the charging pile 500 is sold with electric energy. The charging pile 500 can also be charged by the energy storage battery 120 alone, or the energy storage battery 120 and the power battery 110 together charge the charging pile 500, and the charging pile can be specifically carried out according to the electric quantity storage or the electric energy price of the electric vehicle, and the embodiment of the application is not particularly limited.
In some embodiments, as shown in fig. 2, the energy storage system 100 further comprises: the battery management unit 130, the battery management unit 130 may be configured to monitor an operation state of the power battery 110, to control the energy storage system 100 to stop in case of an abnormality of the power battery 110, and to send an alarm message. The battery management unit 130 may also monitor the operating state of the energy storage battery 120, control the energy storage system 100 to stop when the energy storage battery 120 is abnormal, and send an alarm message. The alarm information can remind a user or maintenance personnel to carry out abnormity repair and fault maintenance in time.
In some embodiments, the photovoltaic power generation system 200 is electrically connected to a powered device of an electric vehicle for powering the powered device. The electric devices of the electric vehicle are generally low-voltage power-supplying devices, such as lamps, dashboards, displays, speakers, air conditioners, charging ports, etc., and the charging ports can provide charging functions for mobile phones or other electronic devices. The charging port may be a wireless charging port, and the embodiment of the present application is not particularly limited.
In some embodiments, the energy storage battery 120 is electrically connected to the powered device for powering the powered device. The power battery 110 provides high voltage driving for driving the electric vehicle to run, compared to low voltage electric equipment. In addition, the start and power-up of the electric vehicle belong to low-voltage power utilization, and the electric vehicle can be supplied with power by the photovoltaic power generation system 200 alone, the energy storage battery 120 alone, or the photovoltaic power generation system 200 and the energy storage battery 120 together.
According to the electric vehicle provided by the embodiment of the application, the low-voltage electric equipment is supplied with power by the photovoltaic power generation system 200 and/or the energy storage battery 120, the standby power consumption and the entertainment power consumption of the electric vehicle do not need to consume the electric quantity of the power battery 110, the power battery 110 can only provide high-voltage power for running, and the safe running of the vehicle can be further ensured.
In some embodiments, the photovoltaic power generation system 200 includes: a photovoltaic panel for converting light energy into electrical energy; the photovoltaic panel is arranged on the outer side of the roof and/or the engine hood and/or the trunk lid and/or the door of the electric vehicle. The exposed part of the shell of the electric vehicle can not influence the position of the license plate shielding and the safe driving visual field, and the photovoltaic panel can be arranged for acquiring light energy and converting the light energy into electric energy.
In some embodiments, a small photovoltaic panel may be further disposed at a position where the windshield does not affect the driving visual field, a position where the window does not affect the driving visual field, or other positions that do not affect safe driving, and the power generated by the small photovoltaic panel may be used for a charging port in the vehicle for charging an electronic device such as a mobile phone.
In some embodiments, the V2G module includes: the wireless charging receiving assembly is used for receiving the electric energy transmitted by the charging pile and transmitting the received electric energy to the power battery; and the wireless discharge emission assembly is used for transmitting the electric energy of the energy storage system to the charging pile. The wireless discharge transmitting assembly may include an electromagnetic induction coil.
In some embodiments, the electric vehicle further comprises: the wireless communication module is used for performing signal interaction between the electric vehicle and the intelligent client; the wireless communication module is in communication connection with the energy management system. The intelligent client can be a smart phone, a tablet computer or a notebook computer and the like, and can remotely control the charging and discharging of the electric vehicle through an application program.
The electric vehicle provided by the embodiment of the application not only can realize wireless charging of the electric vehicle, but also supports the vehicle to send redundant electric quantity to a microgrid or an external power grid through the charging pile in a reverse mode in idle time, and then the user of the electric vehicle can automatically discharge to earn discharge benefits brought by the peak electricity price time of the power grid in idle time.
For example, the installation angle of the photovoltaic panel of the photovoltaic power generation system 200 may be selected to be the best lighting angle according to the local lighting conditions and the specific location of the field. The photovoltaic panel is connected with the car shed through bolts, so that the photovoltaic panel is convenient to maintain daily and repair or replace when the line goes out of a fault. The photovoltaic panel can be arranged to be connected with a detachable hinge, and the angle of the photovoltaic panel can be adjusted according to the illumination conditions in different seasons.
Illustratively, the photovoltaic board can use high efficiency photovoltaic board, and the photovoltaic board is installed on the upper portion of parking bicycle shed, and the photovoltaic board passes through the bolt and is connected with the bicycle shed. And according to the local illumination condition and the self-lighting condition of the parking lot, the photovoltaic panel is installed according to the optimal lighting angle. When a vehicle stops at the wireless charging parking place and has a charging demand, photovoltaic power generated by the photovoltaic panel is preferentially supplied to the electric vehicle for charging, and when the photovoltaic output is greater than the charging demand, surplus power is automatically stored in the energy storage system.
For example, the energy storage system 100 may be installed on a side of a vehicle shed, the energy storage system 100 may include a lithium iron phosphate battery and a battery management unit, and the battery management unit 130 is controlled by the energy management system 300. The charging and discharging of the energy storage battery 120 and the charging and discharging of the power battery 110 are automatically controlled according to the control strategy set by the battery management unit 130, the battery management unit 130 can also monitor the safety states of the energy storage battery 120 and the power battery 110 in real time, and when the battery is abnormal, the battery management unit can automatically control the energy storage system to stop and send information to notify technicians to overhaul.
Illustratively, by the energy management system, when the photovoltaic output is greater than the charging requirement, the redundant photovoltaic power generation is automatically controlled to be stored in the energy storage battery; on cloudy days or at night, the energy storage battery is controlled to automatically discharge to meet the charging requirement of the vehicle.
For example, when the electric vehicle stops at the wireless charging spot, the charging device, such as a charging pile, may automatically identify the vehicle and start the wireless charging operation. The user establishes information intercommunication with the energy management system 300 through the mobile phone client, and the mobile phone APP (application) has multiple functions, such as charging time reservation, remote charging start/pause/stop instruction transmission, wireless charging/wireless V2G mode selection, vehicle taking time and mileage requirement setting, charging and discharging history record query, current and historical charging and discharging cost and income record query and the like.
For example, photovoltaic power is preferentially used during charging of the electric vehicle, and when photovoltaic output is low, the energy storage system automatically discharges to meet the charging requirement.
Exemplarily, the energy storage system can absorb redundant photovoltaic power and can also absorb the electric wolf of the charging pile; when the charging requirement is large, the energy management system 300 can automatically control the energy storage and discharge.
For example, the user can set the V2G end time, the car taking time and the minimum energy storage requirement during car taking in a personalized way at the client through the application program. After the setting is finished, during the service period of the V2G mode, the vehicle can be automatically controlled to automatically select charging and discharging according to the peak and valley periods of the electricity price, and the vehicle energy storage before the vehicle taking time is ensured to be larger than the set required value of the latest time. Thus, the maximum benefit is obtained through the wireless V2G, and meanwhile, enough electricity is ensured to meet the next mileage requirement when the vehicle is used. The energy management unit automatically controls charging and discharging of stored energy according to photovoltaic output, charging load, discharging electric quantity, stored energy electric quantity and power grid time-sharing price, ensures that clean energy is preferentially absorbed by the charging load, and can also automatically control the energy storage system to supplement photovoltaic power when the illumination condition is not good. The user directly establishes contact with the device through the mobile phone without plugging and unplugging the charging gun and controlling the charging equipment. The charging process, the charging and discharging history record and the charging and discharging history income record can be inquired in the special APP, and the mobile phone APP can also perform operations such as V2G service reservation and V2G service personalized setting.
In a second aspect of the embodiments of the present application, there is provided an energy management method for an electric vehicle, which is applied to the electric vehicle according to the first aspect, and fig. 3 is a schematic flowchart of the energy management method for an electric vehicle according to the embodiments of the present application. As shown in fig. 3, the energy management method includes:
s101: and controlling the photovoltaic power generation system to charge the power battery based on the electric quantity of the power battery according to the photovoltaic operation instruction, wherein the photovoltaic operation instruction is used for controlling the operation of the photovoltaic power generation system.
S201: and under the condition that the charging rate of the photovoltaic power generation system to the power battery is less than the set charging rate, acquiring electric energy from the charging pile through the V2G module to charge the power battery.
S301: and controlling the energy storage system to charge the charging pile through a V2G module based on the electric quantity of the energy storage system according to the discharging instruction. The discharge instruction can be automatically generated by the energy management system or issued by the client.
It should be noted that steps S101, S201, and S301 may be executed synchronously or asynchronously, and the present application is not limited to this embodiment.
In some embodiments, step S101 may include:
controlling a photovoltaic power generation system to charge the power battery under the condition that the electric quantity of the power battery is smaller than a first threshold value according to the photovoltaic operation instruction,
and under the condition that the electric quantity of the power battery is greater than a second threshold value, controlling the photovoltaic power generation system to charge the energy storage battery, wherein the second threshold value is smaller than the first threshold value.
In some embodiments, the energy management method of an electric vehicle may further include:
receiving a charging instruction or a discharging instruction issued by an intelligent client through a wireless communication module, wherein the discharging instruction is generated according to the electric energy price of the power grid side and the electric quantity of the energy storage system;
and based on the charging instruction, acquiring electric energy from the charging pile through a V2G module to charge the power battery.
In some embodiments, a method of energy management for an electric vehicle, further comprises:
under the condition that the electric quantity of the power battery is greater than the second threshold value and the electric quantity of the energy storage battery is less than the third threshold value, controlling the power battery to charge the energy storage battery;
and under the condition that the electric quantity of the power battery is greater than a second threshold value and the electric quantity of the energy storage battery is greater than a fourth threshold value, controlling the power battery and/or the power battery to charge the charging pile through the V2G module, wherein the fourth threshold value is greater than a third threshold value.
Exemplarily, the energy management system can be installed on the side of the charging shed together with the energy storage system, and the energy management system can acquire real-time photovoltaic power generation capacity value, discharging capacity, charging demand, energy storage battery capacity, power battery capacity and power grid side-sharing electricity price information. The energy management system can automatically control the charging, discharging or standby of the energy storage system according to the supply and demand balance and the time-sharing electricity price of the power grid.
Exemplarily, the stake side of charging can set up stake side wireless charging module, and is pre-buried to the parking stall underground, stops to wireless charging parking stall when wireless charging vehicle, and electromagnetic induction coil and vehicle end V2G module in the stake side wireless charging module produce electromagnetic induction, and electric vehicle's user can establish the communication through cell-phone APP and the electric pile of charging this moment, selects one-way wireless charging or wireless V2G service, later can get into one-way wireless charging or wireless V2G mode.
Illustratively, the wireless V2G mode may include the steps of:
after the vehicle owner finishes parking, the vehicle owner clicks the wireless V2G service on the mobile phone APP, customizes the vehicle taking time and the lower limit of the battery power, selects the settlement mode and starts the wireless V2G service. During the vehicle participating in the V2G service, the energy management system automatically controls the wireless charging and wireless discharging of the vehicle according to the time-of-use price of the power grid side and ensures that the vehicle reaches the vehicle-taking time, and the battery capacity of the vehicle is larger than or equal to the previously set lower limit.
When the electric vehicle is in a charging state, the energy management system can ensure that the electric vehicle is charged with electricity preferentially using photovoltaic, when photovoltaic output is greater than a charging requirement, photovoltaic energy is automatically stored in the energy storage system, and when the photovoltaic output is insufficient, the energy management system can control the energy storage to automatically discharge, so that the charging requirement is met together with the photovoltaic.
When the electric vehicle is in a discharging state, the energy management system can control discharging to be preferentially stored in the energy storage system according to the amount of the stored energy, when the amount of the stored energy is larger than 90%, on one hand, the current flowing to the energy storage system is less, and on the other hand, the discharging electric quantity is controlled to enter the microgrid and be consumed by other electric loads in the microgrid. When the electric quantity of the energy storage battery is larger than 98%, the energy management system automatically controls the energy storage standby state to stop charging.
It should be noted that, in the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to relevant descriptions of other embodiments for parts that are not described in detail in a certain embodiment.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-readable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-readable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Embodiments of the present application also provide a computer program product comprising computer software instructions that, when run on a processing device, cause the processing device to perform a process of an energy management method of an electric vehicle.
The computer program product includes one or more computer instructions. The procedures or functions according to the embodiments of the present application are generated in whole or in part when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. A computer-readable storage medium may be any available medium that a computer can store or a data storage device, such as a server, a data center, etc., that is integrated with one or more available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a Solid State Disk (SSD)), among others.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus, device, and method may be implemented in other ways. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, a division of a unit is merely a logical division, and in actual implementation, there may be another division, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, i.e. may be located in one place, or may also be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present application.
While preferred embodiments of the present specification have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all changes and modifications that fall within the scope of the specification.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present specification without departing from the spirit and scope of the specification. Thus, if such modifications and variations of the present specification fall within the scope of the claims of the present specification and their equivalents, the specification is intended to include such modifications and variations.

Claims (10)

1. An electric vehicle, characterized by comprising:
the energy storage system comprises a power battery;
the photovoltaic power generation system is used for converting light energy into electric energy and storing the obtained electric energy in the energy storage system;
and the energy management system is used for controlling the photovoltaic power generation system to charge the power battery based on the electric quantity of the power battery, acquiring electric energy from the charging pile through the V2G module to charge the power battery, and controlling the energy storage system to charge the charging pile through the V2G module.
2. The electric vehicle of claim 1, characterized in that the energy storage system further comprises:
the battery management unit is used for monitoring the running state of the power battery, controlling the energy storage system to stop under the condition that the power battery is abnormal, and sending alarm information;
the photovoltaic power generation system includes:
a photovoltaic panel for converting light energy into electrical energy;
the photovoltaic panel is arranged on the outer side of the roof and/or the engine hood and/or the trunk lid and/or the door of the electric vehicle.
3. The electric vehicle of claim 1, characterized in that the energy storage system further comprises:
an energy storage battery;
the energy management system is used for controlling the photovoltaic power generation system to charge the power battery under the condition that the electric quantity of the power battery is smaller than a first threshold value, and controlling the photovoltaic power generation system to charge the energy storage battery under the condition that the electric quantity of the power battery is larger than a second threshold value, wherein the second threshold value is smaller than the first threshold value;
the energy management system is used for controlling the energy storage battery and/or the power battery to charge the charging pile through the V2G module according to the electric energy price of the power grid side, the electric quantity of the energy storage battery and the electric quantity of the power battery, wherein the electric energy price of the power grid side is obtained by the V2G module from the power grid side.
4. The electric vehicle of claim 3, wherein the photovoltaic power generation system is electrically connected to a power-consuming device of the electric vehicle for supplying power to the power-consuming device; and/or the presence of a gas in the gas,
the energy storage battery is electrically connected with the electric equipment and used for supplying power to the electric equipment.
5. The electric vehicle of claim 1, characterized in that the V2G module includes:
the wireless charging receiving assembly is used for receiving the electric energy transmitted by the charging pile and transmitting the received electric energy to the power battery;
and the wireless discharge transmitting assembly is used for transmitting the electric energy of the energy storage system to the charging pile.
6. The electric vehicle according to claim 1, characterized by further comprising:
the wireless communication module is used for carrying out signal interaction between the electric vehicle and the intelligent client;
the wireless communication module is in communication connection with the energy management system.
7. An energy management method of an electric vehicle, applied to the electric vehicle according to any one of claims 1 to 6, the energy management method comprising:
controlling a photovoltaic power generation system to charge a power battery based on the electric quantity of the power battery according to a photovoltaic operation instruction, wherein the photovoltaic operation instruction is used for controlling the operation of the photovoltaic power generation system;
under the condition that the charging rate of the photovoltaic power generation system to the power battery is smaller than a set charging rate, acquiring electric energy from a charging pile through a V2G module to charge the power battery;
and controlling the energy storage system to charge the charging pile through a V2G module based on the electric quantity of the energy storage system according to the discharging instruction.
8. The method according to claim 7, wherein the controlling a photovoltaic power generation system to charge the power battery based on the electric quantity of the power battery according to the photovoltaic operation instruction comprises:
according to the photovoltaic operation instruction, under the condition that the electric quantity of the power battery is smaller than a first threshold value, controlling the photovoltaic power generation system to charge the power battery;
and under the condition that the electric quantity of the power battery is greater than a second threshold value, controlling the photovoltaic power generation system to charge the energy storage battery, wherein the second threshold value is smaller than the first threshold value.
9. The method of energy management for an electric vehicle according to claim 7, further comprising:
receiving a charging instruction or a discharging instruction issued by an intelligent client through a wireless communication module, wherein the discharging instruction is generated according to the electric energy price of the power grid side and the electric quantity of the energy storage system;
and based on the charging instruction, acquiring electric energy from the charging pile through the V2G module to charge the power battery.
10. The energy management method of an electric vehicle according to claim 8, further comprising:
under the condition that the electric quantity of the power battery is larger than the second threshold value and the electric quantity of the energy storage battery is smaller than a third threshold value, controlling the power battery to charge the energy storage battery;
and under the condition that the electric quantity of the power battery is greater than the second threshold value and the electric quantity of the energy storage battery is greater than a fourth threshold value, controlling the power battery and/or the power battery to charge the charging pile through a V2G module, wherein the fourth threshold value is greater than the third threshold value.
CN202210635707.4A 2022-06-06 2022-06-06 Electric vehicle and energy management method Pending CN115091967A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210635707.4A CN115091967A (en) 2022-06-06 2022-06-06 Electric vehicle and energy management method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210635707.4A CN115091967A (en) 2022-06-06 2022-06-06 Electric vehicle and energy management method

Publications (1)

Publication Number Publication Date
CN115091967A true CN115091967A (en) 2022-09-23

Family

ID=83289844

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210635707.4A Pending CN115091967A (en) 2022-06-06 2022-06-06 Electric vehicle and energy management method

Country Status (1)

Country Link
CN (1) CN115091967A (en)

Similar Documents

Publication Publication Date Title
US11413984B2 (en) Apparatus and method for charging and discharging electric vehicle under smart grid environment
Speidel et al. Driving and charging patterns of electric vehicles for energy usage
US9174548B2 (en) Renewable energy power depositing/charging management system
JP4071197B2 (en) Car
US20120330494A1 (en) Electric vehicle fleet charging system
US20090030712A1 (en) System and method for transferring electrical power between grid and vehicle
JP2009089596A (en) Automobile
WO2009014543A1 (en) System and method for transferring electrical power between grid and vehicle
JP2003259696A (en) Generation control method and program thereof
KR101505744B1 (en) Intelligent multi-charging system
CN103407378A (en) Intelligent charging management method and system
KR20200050802A (en) System of management of energy trading and method of the same
CN108189693A (en) The control method and system that a kind of electric vehicle remotely charges
CN104124716A (en) Charge-discharge guiding control method and charge-discharge guiding control device
CN109094401A (en) Energy vehicle charge control method, storage medium, control device and charging pile
CN116316759A (en) Charging operation management system based on cloud platform and demand side response control method thereof
Shuanglong et al. Study on group control charging system and cluster control technology of electric vehicle
KR20120012532A (en) Two-way Power Supply Apparatus of Electric Vehicle for Smart Grid and Two-way Power Supply Method Using the Same
CN113022334B (en) Remote intelligent charging method and device for electric automobile and storage medium
CN115091967A (en) Electric vehicle and energy management method
CN206272276U (en) The power-supply management system of traffic accident Emergency Command Vehicle
CN105896619A (en) V2G AC/DC hybrid micro-grid control method
WO2019244213A1 (en) Vehicle management system, vehicle management computer, and vehicle management method
CN115384310A (en) Charging method and device applied to vehicle, electronic equipment and storage medium
KR102230787B1 (en) Electric vehicle charging device and method using Home Energy Management System

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