CN108407639B - Charging device and method - Google Patents
Charging device and method Download PDFInfo
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- CN108407639B CN108407639B CN201810182695.8A CN201810182695A CN108407639B CN 108407639 B CN108407639 B CN 108407639B CN 201810182695 A CN201810182695 A CN 201810182695A CN 108407639 B CN108407639 B CN 108407639B
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- electric quantity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- 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]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2210/00—Converter types
- B60L2210/10—DC to DC converters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Abstract
The invention provides a charging device and a method, wherein the charging device comprises: the system comprises an electronic control unit, a vehicle control unit connected with the electronic control unit, a vehicle-mounted charger and a battery management system respectively connected with the vehicle control unit, and a battery pack respectively connected with the vehicle-mounted charger and the battery management system; the battery management system is used for acquiring the current electric quantity of the charging vehicle; the electronic control unit is used for controlling the vehicle-mounted charger or the battery pack to charge the charging vehicle through the vehicle control unit according to the current electric quantity; the current capacity of the battery pack is less than the initial capacity of the battery pack. The scheme well solves the problem that in the prior art, the charging of the electric automobile is difficult to reach the problem that high-voltage devices retired on the electric automobile easily cause environmental pollution.
Description
Technical Field
The present invention relates to the field of vehicle technologies, and in particular, to a charging device and a charging method.
Background
In 2010-2016, the accumulated goods volume of Chinese power batteries is 64.5GWH, and the calculated service life is designed, a large number of power batteries face decommissioning, and the utilization and treatment of the batteries removed from passenger cars become problems which need to be solved urgently at present, and if the batteries are not treated properly, environmental pollution is possibly caused; and the service life of most high-voltage devices is longer than that of the whole vehicle, and the high-voltage devices can be taken out for independent use after the whole vehicle is scrapped.
In addition, the electric vehicle charging equipment mainly comprises a charging station and the like and auxiliary facilities thereof, the construction period is long, the national power grid power expansion is difficult, and the charging of the electric vehicle is still difficult.
Disclosure of Invention
The invention aims to provide a charging device and a charging method, which solve the problems that in the prior art, an electric automobile is difficult to charge and high-voltage devices retired on the electric automobile easily cause environmental pollution.
In order to solve the above technical problem, an embodiment of the present invention provides a charging device, including:
the system comprises an electronic control unit, a vehicle control unit connected with the electronic control unit, a vehicle-mounted charger and a battery management system which are respectively connected with the vehicle control unit, and a battery pack which is respectively connected with the vehicle-mounted charger and the battery management system;
the battery management system is used for acquiring the current electric quantity of the charging vehicle;
the electronic control unit is used for controlling the vehicle-mounted charger or the battery pack to charge the charging vehicle through the vehicle control unit according to the current electric quantity;
the current capacity of the battery pack is less than the initial capacity of the battery pack.
Optionally, the method further includes:
and the direct current-direct current converter is respectively connected with the electronic control unit and the battery pack.
Optionally, the method further includes:
the direct current discharging output 9-core national standard interface and the 220V voltage output interface are respectively connected with the direct current converter;
and the direct current discharge output 9-core national standard interface is also connected with the vehicle-mounted charger.
Optionally, the method further includes:
and the alternating current charging input interface is connected with the vehicle-mounted charger.
Optionally, the electronic control unit is configured to control the battery pack to charge the charging vehicle through the vehicle control unit when the current electric quantity is lower than 50% of a vehicle electric capacity; and when the current electric quantity is higher than or equal to 50% of the electric capacity of the vehicle, controlling the vehicle-mounted charger to charge the charging vehicle through the vehicle control unit.
Optionally, the electronic control unit confirms whether the connection between the charging vehicle and the charging device is abnormal through the battery management system;
when the charging vehicle and the charging device are normally connected, the electronic control unit controls the battery management system to acquire the current electric quantity of the charging vehicle.
Optionally, the method further includes:
and the display screen is respectively connected with the electronic control unit and the battery pack.
Optionally, the battery management system is further configured to obtain a real-time electric quantity of the battery pack;
the electronic control unit is used for controlling the vehicle-mounted charger or the battery pack to charge the charging vehicle through the vehicle control unit according to the current electric quantity and the real-time electric quantity.
Optionally, the method further includes:
the electronic control unit, the vehicle control unit, the battery pack, the vehicle-mounted charger and the battery management system are all arranged in the accommodating space;
the bottom of the shell is provided with a base structure capable of moving in a rolling manner.
Optionally, the method further includes:
the alarm and protection unit is connected with the vehicle control unit; the electronic control unit controls the alarm and protection unit to alarm and protect the circuit against overvoltage, undervoltage, overcurrent, overheat, reverse connection and/or ground short circuit through the vehicle control unit.
The embodiment of the invention also provides a charging method, which comprises the following steps:
acquiring the current electric quantity of the charging vehicle;
controlling a vehicle-mounted charger or a battery pack of a charging device to charge the charging vehicle according to the current electric quantity;
wherein the current capacity of the battery pack is less than the initial capacity of the battery pack.
Optionally, the step of controlling a vehicle-mounted charger or a battery pack of the charging device to charge the charging vehicle according to the current electric quantity includes:
when the current electric quantity is lower than 50% of the vehicle electric capacity, controlling the battery pack to charge the charging vehicle; and when the current electric quantity is higher than or equal to 50% of the electric capacity of the vehicle, controlling the vehicle-mounted charger to charge the charging vehicle.
Optionally, the step of obtaining the current electric quantity of the charging vehicle includes:
confirming whether the connection between the charging vehicle and the charging device is abnormal or not;
and when the charging vehicle is normally connected with the charging device, acquiring the current electric quantity of the charging vehicle.
Optionally, the method further includes:
acquiring the real-time electric quantity of the battery pack;
the step of controlling a vehicle-mounted charger or a battery pack of a charging device to charge the charging vehicle according to the current electric quantity comprises the following steps:
and controlling a vehicle-mounted charger or a battery pack of the charging device to charge the charging vehicle according to the current electric quantity and the real-time electric quantity.
The technical scheme of the invention has the following beneficial effects:
in the scheme, the charging device is provided with an electronic control unit, a vehicle control unit, a battery pack, a vehicle-mounted machine and a battery management system, and the current capacity of the battery pack is smaller than the initial capacity of the battery pack; the power battery can be recycled in a gradient manner, the environment is protected, pollution is reduced, energy is saved, resources are recycled, contribution to environmental protection is made, benefits can be brought to enterprises, the power battery has the characteristic of being small and movable, the electric automobile can be charged conveniently, the development prospect is wide, and the problem that in the prior art, the electric automobile is difficult to charge and high-voltage devices retired on the electric automobile are prone to causing environmental pollution is solved well.
Drawings
Fig. 1 is a first schematic structural diagram of a charging device according to an embodiment of the present invention;
fig. 2 is a second schematic structural diagram of a charging device according to an embodiment of the invention;
fig. 3 is a schematic flow chart of a charging method according to an embodiment of the invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
The invention provides a charging device aiming at the problems that the charging of an electric automobile is difficult and the high-voltage device retired on the electric automobile easily causes environmental pollution in the prior art, as shown in figures 1 and 2, the charging device comprises:
the system comprises an electronic control unit 1, a vehicle control unit 2 connected with the electronic control unit 1, a vehicle-mounted charger 3 and a battery management system 4 respectively connected with the vehicle control unit 2, and a battery pack 5 respectively connected with the vehicle-mounted charger 3 and the battery management system 4;
the battery management system 4 is used for acquiring the current electric quantity of the charging vehicle;
the electronic control unit 1 is configured to control the vehicle-mounted charger 3 or the battery pack 5 to charge the charging vehicle through the vehicle-mounted controller 2 according to the current electric quantity (it can also be understood that the electronic control unit is configured to adjust a charging voltage and/or a charging current of the charging vehicle through the vehicle-mounted controller according to the current electric quantity);
the current capacity of the battery pack 5 is smaller than the initial capacity of the battery pack.
According to the charging device provided by the embodiment of the invention, the electronic control unit, the vehicle control unit, the battery pack, the vehicle-mounted machine and the battery management system are arranged, and the current capacity of the battery pack is smaller than the initial capacity of the battery pack; the power battery can be recycled in a gradient manner, the environment is protected, pollution is reduced, energy is saved, resources are recycled, contribution to environmental protection is made, benefits can be brought to enterprises, the power battery has the characteristic of being small and movable, the electric automobile can be charged conveniently, the development prospect is wide, and the problem that in the prior art, the electric automobile is difficult to charge and high-voltage devices retired on the electric automobile are prone to causing environmental pollution is solved well.
As shown in fig. 2, the charging device further includes: and a direct current-direct current converter 6 respectively connected with the electronic control unit 1 and the battery pack 5. A direct current discharge output 9-core national standard interface 7 and a 220V voltage output interface 8 which are respectively connected with the direct current-direct current converter 6; the direct-current discharge output 9-core national standard interface 7 is also connected with the vehicle-mounted charger 3. And the alternating current charging input interface 10 is connected with the vehicle-mounted charger 3. The single-phase alternating current is input into the on-board charger OBC, and is converted to charge the battery pack for energy storage.
The input voltage of the ac charging input interface may be 220V ac, and the input current may be 16A or 32A.
Specifically, the electronic control unit is configured to control the battery pack to charge the charging vehicle through the vehicle control unit when the current electric quantity is lower than 50% of a vehicle electric capacity (preferably, the electric capacity of the charging vehicle); when the current electric quantity is higher than or equal to 50% of vehicle electric capacity (preferably the electric capacity of the charging vehicle), the vehicle-mounted charger is controlled by the vehicle control unit to charge the charging vehicle.
Further, the electronic control unit confirms whether the connection between the charging vehicle and the charging device is abnormal through the battery management system; when the charging vehicle and the charging device are normally connected, the electronic control unit controls the battery management system to acquire the current electric quantity of the charging vehicle. This can ensure the accuracy of the current amount of power obtained.
In order to facilitate human-computer interaction, the charging device further comprises: and the display screen is respectively connected with the electronic control unit and the battery pack.
In order to ensure safe use, the charging device further comprises: the alarm and protection unit is connected with the vehicle control unit; the electronic control unit controls the alarm and protection unit to alarm and protect the circuit against overvoltage, undervoltage, overcurrent, overheat, reverse connection and/or ground short circuit through the vehicle control unit.
Further, the battery management system is also used for acquiring the real-time electric quantity of the battery pack; the electronic control unit is used for controlling the vehicle-mounted charger or the battery pack to charge the charging vehicle through the vehicle control unit according to the current electric quantity and the real-time electric quantity. Therefore, the accuracy of charging control can be further improved, and the current electric quantity and the real-time electric quantity can be set with a threshold value to perform other control, for example, when the real-time electric quantity is lower than the threshold value, the vehicle controller controls the charging vehicle not to be charged any more, so that the charging device is prevented from being unfavorable due to the excessively low electric quantity.
In order to facilitate the use and prolong the service life of the charging device, in an embodiment of the present invention, the charging device further includes: the electronic control unit, the vehicle control unit, the battery pack, the vehicle-mounted charger and the battery management system are all arranged in the accommodating space; the bottom of the shell is provided with a base structure capable of rolling and moving (namely, the charging device can roll and move through the base structure).
Among them, the above-mentioned AC charging input interface and vehicle-mounted charger, between vehicle-mounted charger and battery pack, between vehicle-mounted charger and 9-core national standard interface of direct current discharge output, between battery pack and direct current converter, and between direct current converter and 220V voltage output interface, all are strong electric control, the cable that connects the necessary is the power cable;
the low-voltage control is performed between the battery management system and the battery pack, between the vehicle control unit and the battery management system, between the vehicle control unit and the vehicle-mounted charger, between the electronic control unit and the vehicle control unit, and between the electronic control unit and the direct-current converter, and cables required for connection can meet the requirement of low-voltage control.
The charging device provided by the embodiment of the invention is further described below.
Considering that 11 months 10 in 2017, the national development reform Commission, the finance department, the scientific and technical department, the industry and informatization department and the national energy agency jointly issue guidance opinions about promoting energy storage technology and industry development, the strategic positioning of energy storage in the energy industry of China is firstly determined, and the 'related work is promoted in two stages within 10 years in the future', and the energy storage is realized to be transited from research and development to the initial stage of commercialization in the first stage; the second stage realizes the conversion from the initial stage of commercialization to scale development ". Simultaneously:
1) up to now in 2014, the accumulated sales of new energy automobiles exceed tens of thousands of automobiles, and as time goes on, a large number of automobiles reach the service life and are subject to scrapping. The cost can be further reduced by using the household quick charging station consisting of the battery retired from the electric vehicle, the vehicle-mounted charger and the VCU of the vehicle controller, and the recycling of resources is facilitated.
2) The electric vehicle charging equipment mainly comprises a charging station and other auxiliary facilities, the construction period is long, the national power grid power expansion is difficult, and the charging of the electric vehicle is still difficult, so that the household quick charging station is very necessary to be used as auxiliary quick charging equipment.
3) The household quick charging station has the characteristics of convenient energy storage, high charging speed, small volume, low cost, convenient movement and the like.
4) Batteries retired from the electric vehicle, a vehicle-mounted charger and a vehicle control unit VCU can be expanded into a mobile charging vehicle for emergency electric energy supply or temporary charging stations.
The embodiment of the invention provides a charging device based on components such as a battery retired from an electric automobile, a vehicle-mounted charger and the like, wherein a battery pack, the vehicle-mounted charger OBC, a battery management system BMS and a vehicle control unit VCU are utilized in a gradient manner, a customized and developed electronic control unit ECU and a direct current-direct current conversion DC-DC are combined to form a household quick charging station, energy is stored by utilizing idle time or trough electricity (electricity at a cheap price moment), and the vehicle is quickly charged during working; and can also be used as an emergency power supply to supply power for buildings.
Regarding charging of the charging device of the embodiment of the present invention: single-phase alternating current can be input to OBC through the input interface that charges of exchanging, charges for the battery package through the conversion, carries out the energy storage, and VCU and BMS carry out process monitoring and control (VCU and BMS have remain the function on electric automobile).
The battery pack is preferably charged by an on-board charger at idle or at a trough, the input voltage may be 220V ac, and the input current may be 16A or 32A. The corresponding OBC has a power of 7KW or 3.3 KW.
Regarding the discharge of the charging device of the embodiment of the present invention: when the residual charge SOC of the charging vehicle (the charged vehicle) is more than or equal to 50% of the vehicle capacitance, only using the OBC to charge the charging vehicle; when the residual electric quantity SOC of the vehicle is less than 50% of the electric capacity of the vehicle, firstly, discharging by using a battery pack for quick charging and then, charging by using the OBC; the charging device can also be used as an emergency power supply, and can output 220V alternating current to supply power to the building when the building is powered off. The corresponding output voltage of the DC-DC can be between 200V and 800V of direct current or 220V of alternating current, and the power of the DC-DC can be between 20kW and 30 kW.
The service life can be set to 3 years, and the environmental temperature of the use environment can be between-15 ℃ and 45 ℃. In the embodiment of the invention, the number of the battery packs is preferably one, and the capacity is between 30kWh and 60 kWh.
In the embodiment of the invention, the ECU controls and coordinates the charging, energy storage and discharging processes of the whole device, has the function of communicating with a battery management system BMS through a CAN network, and further judges whether the system is correctly connected with an electric automobile; the battery parameters of the battery of the charging device and the real-time data of the whole set and the single battery (which can comprise a power supply battery and can also comprise a charged battery) before and during charging can be obtained. The ECU dynamically adjusts the charging current or voltage parameters according to data provided by the BMS, executes corresponding actions (adjusting current or voltage), and completes the intelligent charging process.
The charging device provided by the embodiment of the invention has corresponding alarming and protecting functions of overvoltage, undervoltage, overcurrent, overheating, reverse connection, short circuit to the ground and the like.
The charging device provided by the embodiment of the invention also comprises a display screen with a man-machine interaction function; and a national standard 9-core charging gun can be further included.
Therefore, the charging device provided by the embodiment of the invention can form a household quick charging station and has the characteristics of convenience and quickness in energy storage, high charging speed, small size, low cost, convenience in movement and the like. Can expand to remove the storage battery car for emergent electric energy supply or temporary charging station.
In addition, the embodiment of the invention realizes the echelon utilization and recovery of the power battery, is beneficial to protecting the environment, reducing pollution and saving energy, contributes to environmental protection and brings benefits to enterprises.
In summary, the scheme provided by the embodiment of the invention can realize that the battery, the vehicle-mounted charger and the VCU are utilized in a echelon manner to combine with a newly developed ECU (electronic control unit) and a mature low-cost DC-DC (direct current-direct current conversion) to form a household quick charging station, has the characteristics of miniaturization and mobility, has a wide development prospect, and is beneficial to perfecting the ecological chain of battery production, recovery and reutilization.
An embodiment of the present invention further provides a charging method, as shown in fig. 3, including:
step 31: acquiring the current electric quantity of the charging vehicle;
step 32: controlling a vehicle-mounted charger or a battery pack of a charging device to charge the charging vehicle according to the current electric quantity;
wherein the current capacity of the battery pack is less than the initial capacity of the battery pack.
The charging method provided by the embodiment of the invention obtains the current electric quantity of the charging vehicle; controlling a vehicle-mounted charger or a battery pack of a charging device to charge the charging vehicle according to the current electric quantity; wherein the current capacity of the battery pack is less than the initial capacity of the battery pack; the power battery can be recycled in a gradient manner, the environment is protected, pollution is reduced, energy is saved, resources are recycled, contribution to environmental protection is made, benefits can be brought to enterprises, the power battery has the characteristic of being small and movable, the electric automobile can be charged conveniently, the development prospect is wide, and the problem that in the prior art, the electric automobile is difficult to charge and high-voltage devices retired on the electric automobile are prone to causing environmental pollution is solved well.
Specifically, the step of controlling a vehicle-mounted charger or a battery pack of the charging device to charge the charging vehicle according to the current electric quantity includes: when the current electric quantity is lower than 50% of the vehicle electric capacity (preferably the electric capacity of the charging vehicle), controlling the battery pack to charge the charging vehicle; and when the current electric quantity is higher than or equal to 50% of the vehicle electric capacity (preferably the electric capacity of the charging vehicle), controlling the vehicle-mounted charger to charge the charging vehicle.
Further, the step of obtaining the current charge of the charging vehicle includes: confirming whether the connection between the charging vehicle and the charging device is abnormal or not; and when the charging vehicle is normally connected with the charging device, acquiring the current electric quantity of the charging vehicle. This can ensure the accuracy of the current amount of power obtained.
Still further, the charging method may further include: acquiring the real-time electric quantity of the battery pack;
correspondingly, the step of controlling a vehicle-mounted charger or a battery pack of the charging device to charge the charging vehicle according to the current electric quantity comprises the following steps: and controlling a vehicle-mounted charger or a battery pack of the charging device to charge the charging vehicle according to the current electric quantity and the real-time electric quantity.
Therefore, the accuracy of charging control can be further improved, and the current electric quantity and the real-time electric quantity can be set with a threshold value to perform other control, for example, when the real-time electric quantity is lower than the threshold value, the vehicle controller controls the charging vehicle not to be charged any more, so that the charging device is prevented from being unfavorable due to the excessively low electric quantity.
It should be noted that the implementation embodiments of the charging device are all applicable to the embodiment of the charging method, and the same technical effects can be achieved, which are not described herein again.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (12)
1. A charging device, comprising:
the system comprises an electronic control unit, a vehicle control unit connected with the electronic control unit, a vehicle-mounted charger and a battery management system respectively connected with the vehicle control unit, and a battery pack respectively connected with the vehicle-mounted charger and the battery management system;
the battery management system is used for acquiring the current electric quantity of the charging vehicle;
the electronic control unit is used for controlling the vehicle-mounted charger or the battery pack to charge the charging vehicle through the vehicle control unit according to the current electric quantity;
the current capacity of the battery pack is less than the initial capacity of the battery pack;
the electronic control unit is used for controlling the battery pack to charge the charging vehicle through the vehicle control unit when the current electric quantity is lower than 50% of the vehicle electric capacity; and when the current electric quantity is higher than or equal to 50% of the electric capacity of the vehicle, controlling the vehicle-mounted charger to charge the charging vehicle through the vehicle control unit.
2. The charging device according to claim 1, further comprising:
and the direct current-direct current converter is respectively connected with the electronic control unit and the battery pack.
3. The charging device according to claim 2, further comprising:
the direct current discharging output 9-core national standard interface and the 220V voltage output interface are respectively connected with the direct current converter;
and the direct current discharge output 9-core national standard interface is also connected with the vehicle-mounted charger.
4. The charging device according to claim 1, further comprising:
and the alternating current charging input interface is connected with the vehicle-mounted charger.
5. The charging device according to claim 1, wherein the electronic control unit confirms whether or not the charging vehicle is abnormally connected to the charging device through the battery management system;
when the charging vehicle and the charging device are normally connected, the electronic control unit controls the battery management system to acquire the current electric quantity of the charging vehicle.
6. The charging device according to claim 1, further comprising:
and the display screen is respectively connected with the electronic control unit and the battery pack.
7. The charging device of claim 1, wherein the battery management system is further configured to obtain a real-time charge of the battery pack;
the electronic control unit is used for controlling the vehicle-mounted charger or the battery pack to charge the charging vehicle through the vehicle control unit according to the current electric quantity and the real-time electric quantity.
8. The charging device according to claim 1, further comprising:
the electronic control unit, the vehicle control unit, the battery pack, the vehicle-mounted charger and the battery management system are all arranged in the accommodating space;
the bottom of the shell is provided with a base structure capable of moving in a rolling manner.
9. The charging device according to claim 1, further comprising:
the alarm and protection unit is connected with the vehicle control unit; the electronic control unit controls the alarm and protection unit to alarm and protect the circuit against overvoltage, undervoltage, overcurrent, overheat, reverse connection and/or ground short circuit through the vehicle control unit.
10. A method of charging, comprising:
acquiring the current electric quantity of the charging vehicle;
controlling a vehicle-mounted charger or a battery pack of a charging device to charge the charging vehicle according to the current electric quantity;
wherein the current capacity of the battery pack is less than the initial capacity of the battery pack;
the step of controlling a vehicle-mounted charger or a battery pack of a charging device to charge the charging vehicle according to the current electric quantity comprises the following steps:
when the current electric quantity is lower than 50% of the vehicle electric capacity, controlling the battery pack to charge the charging vehicle; and when the current electric quantity is higher than or equal to 50% of the electric capacity of the vehicle, controlling the vehicle-mounted charger to charge the charging vehicle.
11. The charging method according to claim 10, wherein the step of acquiring the current charge amount of the charging vehicle includes:
confirming whether the connection between the charging vehicle and the charging device is abnormal or not;
and when the charging vehicle is normally connected with the charging device, acquiring the current electric quantity of the charging vehicle.
12. The charging method according to claim 10, further comprising:
acquiring the real-time electric quantity of the battery pack;
the step of controlling a vehicle-mounted charger or a battery pack of a charging device to charge the charging vehicle according to the current electric quantity comprises the following steps:
and controlling a vehicle-mounted charger or a battery pack of the charging device to charge the charging vehicle according to the current electric quantity and the real-time electric quantity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810182695.8A CN108407639B (en) | 2018-03-06 | 2018-03-06 | Charging device and method |
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| CN201810182695.8A CN108407639B (en) | 2018-03-06 | 2018-03-06 | Charging device and method |
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| CN108407639A CN108407639A (en) | 2018-08-17 |
| CN108407639B true CN108407639B (en) | 2020-06-19 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105811553A (en) * | 2016-05-17 | 2016-07-27 | 江苏林洋微网科技有限公司 | Household fast charging device and control method thereof |
| CN106059024A (en) * | 2016-07-22 | 2016-10-26 | 中国电力科学研究院 | Large-power rapid charging converter for family electric car |
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| ITMI20131009A1 (en) * | 2013-06-18 | 2014-12-19 | Eutecne S R L | SYSTEM FOR CHARGING ELECTRIC VEHICLES |
| US9592742B1 (en) * | 2014-04-09 | 2017-03-14 | FreeWire Technologies, Inc. | Systems, apparatus, and methods of charging electric vehicles |
| CN204391833U (en) * | 2015-02-12 | 2015-06-10 | 刘力 | Intelligent mobile charging vehicle system |
| US10505378B2 (en) * | 2016-06-30 | 2019-12-10 | Infineon Technologies Ag | Ensuring backward compatibility in battery authentication applications |
| CN106160144A (en) * | 2016-07-22 | 2016-11-23 | 中国电力科学研究院 | A kind of household electric automobile high-power rapid charging system |
| CN106696746A (en) * | 2017-01-19 | 2017-05-24 | 东莞市青鑫新能源有限公司 | Mobile electric vehicle charging system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105811553A (en) * | 2016-05-17 | 2016-07-27 | 江苏林洋微网科技有限公司 | Household fast charging device and control method thereof |
| CN106059024A (en) * | 2016-07-22 | 2016-10-26 | 中国电力科学研究院 | Large-power rapid charging converter for family electric car |
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