CN109050315A - A kind of charging method and charging system of electric car - Google Patents
A kind of charging method and charging system of electric car Download PDFInfo
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- CN109050315A CN109050315A CN201810958473.0A CN201810958473A CN109050315A CN 109050315 A CN109050315 A CN 109050315A CN 201810958473 A CN201810958473 A CN 201810958473A CN 109050315 A CN109050315 A CN 109050315A
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- electric car
- charging
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- battery case
- charger
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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
Abstract
Embodiment of the present invention discloses the charging method and charging system of a kind of electric car.Charging cable is connected between the first electric car comprising the first bidirectional, dc charger and the second electric car comprising the second bidirectional, dc charger, charging cable includes the first vehicle end connector and the second vehicle end connector, first vehicle end connector connects the first bidirectional, dc charger, and the second vehicle end connector connects the second bidirectional, dc charger；First electric car sends the first charge request to the second electric car via charging cable；Detect the remaining capacity of the battery case of the second electric car, when the remaining capacity of the battery case of the second electric car meets the first predetermined condition, the battery case of the second electric car provides the first charging current to the first bidirectional, dc charger via the second bidirectional, dc charger and charging cable；First bidirectional, dc charger is charged using the battery case that the first charging current is the first electric car.The mutual charging between electric vehicle may be implemented, and reduce cost.
Description
Technical field
Embodiment of the present invention is related to automobile technical field, the in particular to charging method and Charging of a kind of electric car
System.
Background technique
Have in national newest standards " term and definition of automobile and trailer type " (GB/T 3730.1-2001) to automobile
Such as give a definition: by power drive, the vehicle of the non-track carrying with 4 or 4 or more wheels is mainly used for: carrying personnel
And (or) cargo；Draw the vehicle of carrying personnel and (or) cargo；Specific use.Energy shortage, oil crisis and environmental pollution
It grows in intensity, brings tremendous influence to people's lives, be directly related to the sustainable development of national economy and society.The world is each
State is all in active development new energy technology.
Energy shortage, oil crisis and environmental pollution grow in intensity, and bring tremendous influence, direct relation to people's lives
To the sustainable development of national economy and society.Countries in the world are all in active development new energy technology.Electric car is as a kind of
Reduce the new-energy automobile of consumption of petroleum, low pollution, low noise, it is considered to be solve the important way of energy crisis and environmental degradation
Diameter.
The progress of technology, so that electric car has reliable service performance substantially.Electric bus is electronic big
The various new-energy automobiles such as bar vehicle, electronic logistic car and electrocar are appeared in successively in our life, almost everywhere may be used
See.However, user worries, bigger problem is " running not far ".The charging of most of electric car is then 2 hours fast, then 7,8 small slowly
When, situations such as charging infrastructure is not perfect, queue waiting time is long, has also deepened the doubt that people buy electric car.
The function of charging pile can be fixed on ground or wall, be installed on public building similar to the fuel charger in gas station
It, can be according to different voltage class in (public building, market, Public Parking etc.) and residential area parking lot or charging station
It charges for the electric car of various models.There is vehicle end interface and stake end interface, vehicle end interface and vehicle-mounted charge on electric car
The output end of machine connection, stake end interface and charging pile connects.
However, installation charging pile needs a large amount of cost and time.It is exhausted and nothing moreover, electric car is likely to occur electricity
Method voluntarily drives to the case where charging pile.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of charging method of electric car and charging systems.
The technical solution of embodiment of the present invention is as follows:
A kind of charging method of electric car, comprising:
In the first electric car comprising the first bidirectional, dc charger and second comprising the second bidirectional, dc charger
Charging cable is connected between electric car, the charging cable includes the first vehicle end connector and the second vehicle end connector, first vehicle end
Connector connects the first bidirectional, dc charger, and the second vehicle end connector connects the second bidirectional, dc charger；
First electric car sends the first charge request to second electric car via the charging cable；
The remaining capacity for detecting the battery case of the second electric car, when the residue electricity of the battery case of second electric car
Amount is when meeting the first predetermined condition, the battery case of the second electric car via the second bidirectional, dc charger and the charging cable to
The first bidirectional, dc charger provides the first charging current；
The first bidirectional, dc charger is the battery case of first electric car using first charging current
Charging.
In one embodiment, this method further include:
Second electric car sends the second charge request to first electric car via the charging cable；
The remaining capacity for detecting the battery case of the first electric car, when the residue electricity of the battery case of first electric car
Amount is when meeting the second predetermined condition, the battery case of the first electric car via the first bidirectional, dc charger and the charging cable to
The second bidirectional, dc charger provides the second charging current；
The second bidirectional, dc charger is the battery case of second electric car using second charging current
Charging.
In one embodiment, the battery case of second electric car is via the second bidirectional, dc charger and described
Charging cable provides the first charging current to the first bidirectional, dc charger
When the voltage of the battery case of the second electric car is greater than the voltage of the battery case of the first electric car, described second
Bidirectional, dc charger does not execute transformation operation for first charging current；
When the voltage of the battery case of the second electric car is less than or equal to the voltage of the battery case of the first electric car, institute
It states the second bidirectional, dc charger and executes boost operations for first charging current.
In one embodiment, the battery case of first electric car is via the first bidirectional, dc charger and described
Charging cable provides the second charging current to the second bidirectional, dc charger
When the voltage of the battery case of the first electric car is greater than the voltage of the battery case of the second electric car, described first
Bidirectional, dc charger does not execute transformation operation for second charging current；
When the voltage of the battery case of the first electric car is less than or equal to the voltage of the battery case of the second electric car, institute
It states the first bidirectional, dc charger and executes boost operations for second charging current.
In one embodiment, the electricity and payment key in first charge request comprising being intended to provide；The party
Method further include:
Second electric car to first electric car provide described in the electricity that is intended to provide；Described second is electronic
Automobile is sent to third-party platform asks money to be requested comprising the payment key, and third-party platform verifies the conjunction of the payment key
After method, is sent respectively to second electric car and first electric car and correspond to the electricity being intended to provide
Respective charge information.
In one embodiment, the electricity and payment key in second charge request comprising being intended to provide；The party
Method further include:
First electric car to second electric car provide described in the electricity that is intended to provide；Described first is electronic
Automobile is sent to third-party platform asks money to be requested comprising the payment key, and third-party platform verifies the conjunction of the payment key
After method, is sent respectively to first electric car and second electric car and correspond to the electricity being intended to provide
Respective charge information.
A kind of charging system of electric car, comprising:
First electric car includes the first bidirectional, dc charger；
Second electric car includes the second bidirectional, dc charger；
Charging cable includes the first vehicle end connector and the second vehicle end connector, wherein the first vehicle end connector connects first pair
To DC charging motor, the second vehicle end connector connects the second bidirectional, dc charger；
Wherein first electric car, for sending the first charging to second electric car via the charging cable
Request；Second electric car, the remaining capacity of the battery case for detecting the second electric car, when the described second electronic vapour
When the remaining capacity of the battery case of vehicle meets the first predetermined condition, the battery case for enabling the second electric car is two-way straight via second
Current charge machine and the charging cable provide the first charging current to the first bidirectional, dc charger；The first electronic vapour
Vehicle is also used to battery case of the enabled first bidirectional, dc charger using first charging current for first electric car
Charging.
In one embodiment, it wherein second electric car, is also used to via the charging cable to described first
Electric car sends the second charge request；First electric car is also used to detect the surplus of the battery case of the first electric car
Remaining electricity enables the first electronic vapour when the remaining capacity of the battery case of first electric car meets the second predetermined condition
The battery case of vehicle provides second to the second bidirectional, dc charger via the first bidirectional, dc charger and the charging cable
Charging current；Second electric car, being also used to enabled second bidirectional, dc charger using second charging current is
The battery case of second electric car charges.
In one embodiment, wherein when the voltage of the battery case of the second electric car is greater than the electricity of the first electric car
When the voltage of pond case, the second bidirectional, dc charger does not execute transformation operation for first charging current；When second
When the voltage of the battery case of electric car is less than or equal to the voltage of the battery case of the first electric car, second bidirectional, dc
Charger executes boost operations for first charging current；Or
It is described wherein when the voltage of the battery case of the first electric car is greater than the voltage of the battery case of the second electric car
First bidirectional, dc charger does not execute transformation operation for second charging current；When the battery case of first electric car
When voltage is less than or equal to the voltage of the battery case of the second electric car, the first bidirectional, dc charger is directed to described second
Charging current executes boost operations.
In one embodiment, the electricity and payment key in first charge request comprising being intended to provide；It is described
Second electric car is also used to the electricity being intended to provide described in first electric car offer, and send out to third-party platform
It send and asks money to be requested comprising the payment key；After wherein third-party platform verifies the legitimacy of the payment key, to described
Second electric car and first electric car send the respective charge information for corresponding to the electricity being intended to provide respectively；
Or
Electricity and payment key in second charge request comprising being intended to provide；First electric car, is also used
It sends in the electricity being intended to provide described in second electric car offer, and to third-party platform comprising the payment key
Ask money to be requested；After wherein third-party platform verifies the legitimacy of the payment key, to first electric car and described
Second electric car sends the respective charge information for corresponding to the electricity being intended to provide respectively.
It can be seen from the above technical proposal that in the first electric car comprising the first bidirectional, dc charger and including
Charging cable is connected between second electric car of two bidirectional, dc chargers, charging cable includes the first vehicle end connector and the second vehicle end
Connector, the first vehicle end connector connect the first bidirectional, dc charger, and the second vehicle end connector connects the second bidirectional, dc charger；The
One electric car sends the first charge request to the second electric car via charging cable；Detect the battery case of the second electric car
Remaining capacity, when the remaining capacity of the battery case of the second electric car meets the first predetermined condition, the electricity of the second electric car
Pond case provides the first charging current to the first bidirectional, dc charger via the second bidirectional, dc charger and charging cable；First pair
It is charged to DC charging motor using the battery case that the first charging current is the first electric car.Therefore, embodiment of the present invention base
In tool, there are two the charging cables of vehicle end connector and bidirectional, dc charger to realize the mutual charging between electric vehicle, without filling
Electric stake also may be implemented to charge, and thereby eliminate the construction cost and maintenance cost of charging pile.
Moreover, the mutual charging between electric vehicle may be implemented in embodiment of the present invention, when electric car electricity exhausts
And when can not voluntarily drive to charging pile, urgent charging can be realized by other electric cars.
Detailed description of the invention
Only illustratively description and explain the present invention for the following drawings, not delimit the scope of the invention.
Fig. 1 is the flow chart according to the charging method of electric car of the present invention.
Fig. 2 is the structure chart according to the charging system of electric car of the present invention.
Fig. 3 is according to the charging flow schematic diagram between electric car of the present invention.
Fig. 4 is according to the charging accounting schematic diagram between electric car of the present invention.
Specific embodiment
In order to which the technical features, objects and effects of invention are more clearly understood, the Detailed description of the invention present invention is now compareed
Specific embodiment, identical label indicates identical part in the various figures.
It is succinct and intuitive in order to what is described, hereafter by describing several representative embodiments come to side of the invention
Case is illustrated.A large amount of details is only used for helping to understand the solution of the present invention in embodiment.However, it will be apparent that of the invention
Technical solution can be not limited to these details when realizing.In order to avoid unnecessarily having obscured the solution of the present invention, Yi Xieshi
It applies mode not described meticulously, but only gives frame.Hereinafter, " comprising " refers to " including but not limited to ", " root
According to ... " refer to " according at least to ..., but be not limited to according only to ... ".Due to the speech habits of Chinese, hereinafter without spy
When not pointing out the quantity of an ingredient, it is meant that the ingredient is either one or more, or can be regarded as at least one.
Fig. 1 is the flow chart according to the charging method of electric car of the present invention.Based on Fig. 1 process, electric vehicle may be implemented
Mutual charging between.
As shown in Figure 1, this method comprises:
Step 101: charging in the first electric car comprising the first bidirectional, dc charger and comprising the second bidirectional, dc
Charging cable is connected between second electric car of machine, charging cable includes the first vehicle end connector and the second vehicle end connector, the first vehicle end
Connector connects the first bidirectional, dc charger, and the second vehicle end connector connects the second bidirectional, dc charger.
Herein, the both ends of charging cable are respectively provided with vehicle end connector, are separately connected the first bidirectional, dc charger and second
Bidirectional, dc charger.Charging cable includes signal wire and power line, and wherein signal wire is used in the first electric car and the second electricity
The charging control signal of such as charge request and charging confirmation message etc is transmitted between electrical automobile；Power line is used in the first electricity
Charging current is transmitted between electrical automobile and the second electric car.
Step 102: the first electric car sends the first charge request to the second electric car via charging cable.
Herein, the first electric car sends the first charging to the second electric car via the signal wire in charging cable and asks
It asks.For example, the entire car controller (VCU) of the first electric car is via the signal wire in charging cable to the VCU of the second electric car
Send the first charge request.
Step 103: the remaining capacity (SOC) of the battery case of the second electric car of detection, when the battery of the second electric car
When the remaining capacity of case meets the first predetermined condition, the battery case of the second electric car via the second bidirectional, dc charger and fills
Electric wire provides the first charging current to the first bidirectional, dc charger.
Herein, when the BMS of the second electric car confirms that the remaining capacity of the battery case of the second electric car meets first
When predetermined condition, the VCU of the second electric car sends the first charging confirmation to the VCU of the first electric car via the signal wire and disappears
Breath.Moreover, the battery case of the second electric car is via the power line in the second bidirectional, dc charger and charging cable to first pair
The first charging current is provided to DC charging motor.Wherein, the first predetermined condition can be with are as follows: remaining capacity is greater than scheduled threshold value
(such as 30 percent), etc..
Wherein, when the voltage of the battery case of the second electric car is greater than the voltage of the battery case of the first electric car, the
Two bidirectional, dc chargers do not execute transformation operation for the first charging current, and the second bidirectional, dc charger only carries out electricity at this time
Power transmitting effect.When the voltage of the battery case of the second electric car is less than or equal to the voltage of the battery case of the first electric car
When, the second bidirectional, dc charger executes boost operations for the first charging current, and the voltage after boosting is greater than the first electronic vapour
The voltage of the battery case of vehicle, the second bidirectional, dc charger had both executed power transmission effect, also execution boosting at this time.
Step 104: the first bidirectional, dc charger is charged using the battery case that the first charging current is the first electric car.
Herein, the first bidirectional, dc charger is based on scheduled charge mode, is the first electricity using the first charging current
The battery case of electrical automobile charges, and wherein charge mode includes constant-voltage charge, arteries and veins in the same direction after constant-current charge, constant-voltage charge, first constant current
Punching charging and positive negative pulse stuffing charging, etc..
As it can be seen that being based on foregoing description, the first electric car passes through the second electric car without connecting charging pile
Think that the first electric car realizes charging.
In one embodiment, this method further include:
Second electric car sends the second charge request to the first electric car via charging cable；
The remaining capacity for detecting the battery case of the first electric car, when the remaining capacity symbol of the battery case of the first electric car
When closing the second predetermined condition, the battery case of the first electric car is two-way to second via the first bidirectional, dc charger and charging cable
DC charging motor provides the second charging current；
Second bidirectional, dc charger is charged using the battery case that the second charging current is the second electric car.
Herein, the second electric car sends the second charging to the first electric car via the signal wire in charging cable and asks
It asks.For example, the VCU of the second electric car sends the second charging to the VCU of the first electric car via the signal wire in charging cable
Request.
Herein, when the BMS of the first electric car confirms that the remaining capacity of the battery case of the first electric car meets second
When predetermined condition, the VCU of the first electric car sends the second charging confirmation to the VCU of the second electric car via the signal wire and disappears
Breath.Moreover, the battery case of the first electric car is via the power line in the first bidirectional, dc charger and charging cable to second pair
The second charging current is provided to DC charging motor.Wherein, the second predetermined condition can be identical as the first predetermined condition, such as are as follows:
Remaining capacity is greater than scheduled threshold value (such as 30 percent), etc..
Wherein, when the voltage of the battery case of the first electric car is greater than the voltage of the battery case of the second electric car, the
One two-way DC charging motor does not execute transformation operation for the second charging current, and the second bidirectional, dc charger only carries out electricity at this time
Power transmitting effect.When the voltage of the battery case of the first electric car is less than or equal to the voltage of the battery case of the second electric car
When, the first bidirectional, dc charger executes boost operations for the second charging current, and the voltage after boosting is greater than the second electronic vapour
The voltage of the battery case of vehicle, the first bidirectional, dc charger had both executed power transmission effect, also execution boosting at this time.
Moreover, the second bidirectional, dc charger is based on scheduled charge mode, it is second electronic using the second charging current
The battery case of automobile charges, and wherein charge mode includes constant-voltage charge, pulse in the same direction after constant-current charge, constant-voltage charge, first constant current
Charging and positive negative pulse stuffing charging, etc..
As it can be seen that being based on foregoing description, the second electric car passes through the first electric car without connecting charging pile
Think that the second electric car realizes charging.
Therefore, embodiment of the present invention realizes the two-way charging modes between two electric cars.
In addition, applicant frequently involves charging in view of charging behavior, embodiment of the present invention also achieves one kind and is directed to
The charging policy of two-way charging modes between electric car.
In one embodiment, the electricity and payment key in the first charge request comprising being intended to provide；This method is also
Include:
Second electric car provides the electricity being intended to provide to the first electric car；Second electric car is to third-party platform
Send and ask money to be requested comprising payment key, after the legitimacy of third-party platform validation of payment key, to the second electric car and
First electric car sends the respective charge information for corresponding to the electricity being intended to provide respectively.Specifically, third party
The charge information that platform is sent to the second electric car is used to inform that the account balance of the second electric car to increase；Third-party platform
The charge information sent to the first electric car is used to inform that the account balance of the first electric car to be reduced.Second electric car
The account balance that account balance increase can be equal to the first electric car is reduced, and is had with the electricity being intended to provide and be associated with
System.The account balance increase of second electric car can be reduced less than the account balance of the first electric car, and difference is provided
To third-party platform.
In one embodiment, the electricity and payment key in the second charge request comprising being intended to provide；This method is also
Include:
First electric car provides the electricity being intended to provide to the second electric car；First electric car is to third-party platform
Send and ask money to be requested comprising payment key, after the legitimacy of third-party platform validation of payment key, to the first electric car and
Second electric car sends the respective charge information for corresponding to the electricity being intended to provide respectively.Specifically, third-party platform is to
The charge information that one electric car is sent is used to inform that the account balance of the first electric car to increase；Third-party platform is electric to second
The charge information that electrical automobile is sent is used to inform that the account balance of the second electric car to be reduced.The account balance of first electric car
Increase the account balance reduction that can be equal to the second electric car, and there is incidence relation with the electricity being intended to provide.First
The account balance increase of electric car can be reduced less than the account balance of the second electric car, and difference is provided to third party
Platform.
Based on foregoing description, embodiment of the present invention also proposed a kind of charging system of electric car.
Fig. 2 is the structure chart according to the charging system of electric car of the present invention.
As shown in Fig. 2, the charging system of electric car, comprising:
First electric car includes the first bidirectional, dc charger；
Second electric car includes the second bidirectional, dc charger；
Charging cable includes the first vehicle end connector and the second vehicle end connector, wherein the first vehicle end connector connection first is two-way straight
Current charge machine, the second vehicle end connector connect the second bidirectional, dc charger；
Wherein the first electric car, for sending the first charge request to the second electric car via charging cable；Second electricity
Electrical automobile, the remaining capacity of the battery case for detecting the second electric car, when the residue electricity of the battery case of the second electric car
Amount is when meeting the first predetermined condition, enable the battery case of the second electric car via the second bidirectional, dc charger and charging cable to
First bidirectional, dc charger provides the first charging current；First electric car is also used to enabled first bidirectional, dc charger
It is charged using the battery case that the first charging current is the first electric car.
In one embodiment, the second electric car is also used to send second to the first electric car via charging cable
Charge request；First electric car is also used to detect the remaining capacity of the battery case of the first electric car, when the first electric car
The remaining capacity of battery case when meeting the second predetermined condition, enable the battery case of the first electric car via the first bidirectional, dc
Charger and charging cable provide the second charging current to the second bidirectional, dc charger；Second electric car is also used to enabled the
Two bidirectional, dc chargers are charged using the battery case that the second charging current is the second electric car.
In one embodiment, wherein when the voltage of the battery case of the second electric car is greater than the electricity of the first electric car
When the voltage of pond case, the second bidirectional, dc charger does not execute transformation operation for the first charging current；When the second electric car
Battery case voltage be less than or equal to the first electric car battery case voltage when, the second bidirectional, dc charger be directed to institute
It states the first charging current and executes boost operations.
In one embodiment, wherein when the voltage of the battery case of the first electric car is greater than the electricity of the second electric car
When the voltage of pond case, the first bidirectional, dc charger does not execute transformation operation for the second charging current；When the first electric car
Battery case the voltage battery case that is less than or equal to the second electric car voltage when, the first bidirectional, dc charger is for the
Two charging currents execute boost operations.
Herein, the both ends of charging cable are respectively provided with vehicle end connector, are separately connected the first bidirectional, dc charger and second
Bidirectional, dc charger.Charging cable includes signal wire and power line, and wherein signal wire is used in the first electric car and the second electricity
The charging control signal of such as charge request and charging confirmation message etc is transmitted between electrical automobile；Power line is used in the first electricity
Charging current is transmitted between electrical automobile and the second electric car.
Fig. 3 is according to the charging flow schematic diagram between electric car of the present invention.Wherein charging side needs to be electrically charged
Electric car；Supplier of electricity is provides the electric car of charging current to charging side.
Whether for charging side, being primarily based on the vehicle end connector of itself, there is connection (plug in rifle judgement) to determine whether to enter and fill
Power mode, and the charger of itself is waken up after entering charge mode to start charging process.
Whether for supplier of electricity, being primarily based on the vehicle end connector of itself, there is connection (plug in rifle judgement) to determine whether to enter and fill
Power mode, and the charger of itself is waken up to start power supply process after entering charge mode, and starts to enable filling for itself
Motor provides charging current to the charger of charging side.
Wherein, when supplier of electricity judge the battery of itself residual capacity it is inadequate when, can actively stop powering.Moreover, working as
When the vehicle end connector of charging side or the vehicle end connector of supplier of electricity are pulled out, then charge mode is exited.
Fig. 4 is according to the charging accounting schematic diagram between electric car of the present invention.
From fig. 4, it can be seen that the first electric car and the second electric car are in stationary state.Moreover, the first electric car
It is all connected to the second electric car positioned at long-range third-party platform, third-party platform realizes the charging process for charging.
In conclusion charging in the first electric car comprising the first bidirectional, dc charger and comprising the second bidirectional, dc
Charging cable is connected between second electric car of machine, charging cable includes the first vehicle end connector and the second vehicle end connector, the first vehicle end
Connector connects the first bidirectional, dc charger, and the second vehicle end connector connects the second bidirectional, dc charger；First electric car warp
The first charge request is sent from charging cable to the second electric car；The remaining capacity for detecting the battery case of the second electric car, when
When the remaining capacity of the battery case of second electric car meets the first predetermined condition, the battery case of the second electric car is via second
Bidirectional, dc charger and charging cable provide the first charging current to the first bidirectional, dc charger；First bidirectional, dc charger
It is charged using the battery case that the first charging current is the first electric car.Therefore, electric vehicle may be implemented in embodiment of the present invention
Mutual charging between, also may be implemented to charge without charging pile, and thereby eliminate charging pile construction cost and
Maintenance cost.
Moreover, the mutual charging between electric vehicle may be implemented in embodiment of the present invention, when electric car electricity exhausts
And when can not voluntarily drive to charging pile, urgent charging can be realized by other electric car.
It should be noted that step and module not all in above-mentioned each process and each structure chart be all it is necessary, can
To ignore certain steps or module according to the actual needs.Each step execution sequence be not it is fixed, can according to need into
Row adjustment.The division of each module is intended merely to facilitate the division functionally that description uses, and in actual implementation, a module can
It is realized with point by multiple modules, the function of multiple modules can also be realized by the same module, these modules can be located at same
In a equipment, it can also be located in different equipment.
Hardware module in each embodiment mechanically or can be realized electronically.For example, a hardware module
It may include that the permanent circuit specially designed or logical device (such as application specific processor, such as FPGA or ASIC) are specific for completing
Operation.Hardware module also may include programmable logic device or circuit by software provisional configuration (as included general procedure
Device or other programmable processors) for executing specific operation.Mechanical system is used as specific, or using dedicated permanent
Property circuit, or hardware module is realized using the circuit (such as being configured by software) of provisional configuration, can according to cost and
Temporal consideration is to determine.
The present invention also provides a kind of machine readable storage medium, storage is as described in the present application for executing a machine
The instruction of method.Specifically, system or device equipped with storage medium can be provided, store realization on the storage medium
The software program code of the function of any embodiment in above-described embodiment, and make computer (or the CPU of the system or device
Or MPU) read and execute the program code being stored in a storage medium.Further, it is also possible to pass through the instruction based on program code
Operating system for calculating hands- operation etc. is set to complete partly or completely practical operation.It can also will be read from storage medium
Program code write in memory set in the expansion board in insertion computer or write and be connected to a computer
In the memory being arranged in expanding element, then the instruction based on program code makes to be mounted on expansion board or expanding element
CPU etc. comes execution part and whole practical operations, to realize the function of any embodiment in above embodiment.
Storage medium embodiment for providing program code include floppy disk, hard disk, magneto-optic disk, CD (such as CD-ROM,
CD-R, CD-RW, DVD-ROM, DVD-RAM, DVD-RW, DVD+RW), tape, non-volatile memory card and ROM.Selectively,
It can be by communication network from download program code on server computer or cloud.
Herein, " schematic " expression " serving as examplea, instances, or illustrations " should not will be described herein as " showing
Any diagram, the embodiment of meaning property " are construed to technical solution that is a kind of preferred or more having advantages.To make simplified form,
Part related to the present invention is only schematically shown in each figure, and does not represent its practical structures as product.Separately
Outside, so that simplified form is easy to understand, with the component of identical structure or function in some figures, it is only symbolically depicted
In one, or only marked one of those.Herein, "one" is not offered as limiting the quantity of relevant portion of the present invention
It is made as " only this ", and "one" situation for not indicating to exclude the quantity " more than one " of relevant portion of the present invention.At this
Wen Zhong, "upper", "lower", "front", "rear", "left", "right", "inner", "outside" etc. are only used for indicating the opposite position between relevant portion
Set relationship, and the absolute position of these non-limiting relevant portions.
The series of detailed descriptions listed above only for feasible embodiment of the invention specifically
Protection scope that is bright, and being not intended to limit the invention, it is all without departing from equivalent embodiments made by technical spirit of the present invention or
Change, such as the combination, segmentation or repetition of feature, should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of charging method of electric car characterized by comprising
It is electronic in the first electric car comprising the first bidirectional, dc charger and second comprising the second bidirectional, dc charger
Charging cable is connected between automobile, the charging cable includes the first vehicle end connector and the second vehicle end connector, the first vehicle end connector
The first bidirectional, dc charger is connected, the second vehicle end connector connects the second bidirectional, dc charger；
First electric car sends the first charge request to second electric car via the charging cable；
The remaining capacity for detecting the battery case of the second electric car, when the remaining capacity symbol of the battery case of second electric car
When closing the first predetermined condition, the battery case of the second electric car is via the second bidirectional, dc charger and the charging cable to described
First bidirectional, dc charger provides the first charging current；
The first bidirectional, dc charger is charged using the battery case that first charging current is first electric car.
2. the charging method of electric car according to claim 1, which is characterized in that this method further include:
Second electric car sends the second charge request to first electric car via the charging cable；
The remaining capacity for detecting the battery case of the first electric car, when the remaining capacity symbol of the battery case of first electric car
When closing the second predetermined condition, the battery case of the first electric car is via the first bidirectional, dc charger and the charging cable to described
Second bidirectional, dc charger provides the second charging current；
The second bidirectional, dc charger is charged using the battery case that second charging current is second electric car.
3. the charging method of electric car according to claim 1, which is characterized in that the battery of second electric car
Case provides the first charging current to the first bidirectional, dc charger via the second bidirectional, dc charger and the charging cable
Include:
When the voltage of the battery case of the second electric car is greater than the voltage of the battery case of the first electric car, described second is two-way
DC charging motor does not execute transformation operation for first charging current；
When the voltage of the battery case of the second electric car is less than or equal to the voltage of the battery case of the first electric car, described the
Two bidirectional, dc chargers execute boost operations for first charging current.
4. the charging method of electric car according to claim 2, which is characterized in that the battery of first electric car
Case provides the second charging current to the second bidirectional, dc charger via the first bidirectional, dc charger and the charging cable
Include:
When the voltage of the battery case of the first electric car is greater than the voltage of the battery case of the second electric car, described first is two-way
DC charging motor does not execute transformation operation for second charging current；
When the voltage of the battery case of the first electric car is less than or equal to the voltage of the battery case of the second electric car, described the
One two-way DC charging motor executes boost operations for second charging current.
5. the charging method of electric car according to claim 1, which is characterized in that
Electricity and payment key in first charge request comprising being intended to provide；This method further include:
Second electric car to first electric car provide described in the electricity that is intended to provide；Second electric car
Send to third-party platform asks money to be requested comprising the payment key, and third-party platform verifies the legitimacy of the payment key
Afterwards, it is sent respectively to second electric car and first electric car and corresponds to the respective of the electricity being intended to provide
Charge information.
6. the charging method of electric car according to claim 2, which is characterized in that
Electricity and payment key in second charge request comprising being intended to provide；This method further include:
First electric car to second electric car provide described in the electricity that is intended to provide；First electric car
Send to third-party platform asks money to be requested comprising the payment key, and third-party platform verifies the legitimacy of the payment key
Afterwards, it is sent respectively to first electric car and second electric car and corresponds to the respective of the electricity being intended to provide
Charge information.
7. a kind of charging system of electric car characterized by comprising
First electric car includes the first bidirectional, dc charger；
Second electric car includes the second bidirectional, dc charger；
Charging cable includes the first vehicle end connector and the second vehicle end connector, wherein the first vehicle end connector connection first is two-way straight
Current charge machine, the second vehicle end connector connect the second bidirectional, dc charger；
Wherein first electric car is asked for sending the first charging to second electric car via the charging cable
It asks；Second electric car, the remaining capacity of the battery case for detecting the second electric car, when second electric car
The remaining capacity of battery case when meeting the first predetermined condition, enable the battery case of the second electric car via the second bidirectional, dc
Charger and the charging cable provide the first charging current to the first bidirectional, dc charger；First electric car,
Enabled first bidirectional, dc charger is also used to fill using the battery case that first charging current is first electric car
Electricity.
8. the charging system of electric car according to claim 7, which is characterized in that
Wherein second electric car is also used to send the second charging to first electric car via the charging cable and ask
It asks；First electric car, is also used to detect the remaining capacity of the battery case of the first electric car, when the described first electronic vapour
When the remaining capacity of the battery case of vehicle meets the second predetermined condition, the battery case for enabling the first electric car is two-way straight via first
Current charge machine and the charging cable provide the second charging current to the second bidirectional, dc charger；The second electronic vapour
Vehicle is also used to battery case of the enabled second bidirectional, dc charger using second charging current for second electric car
Charging.
9. the charging system of electric car according to claim 8, which is characterized in that
Wherein when the voltage of the battery case of the second electric car is greater than the voltage of the battery case of the first electric car, described second
Bidirectional, dc charger does not execute transformation operation for first charging current；When the voltage of the battery case of the second electric car
Less than or equal to the battery case of the first electric car voltage when, the second bidirectional, dc charger for it is described first charging
Electric current executes boost operations；Or
Wherein when the voltage of the battery case of the first electric car is greater than the voltage of the battery case of the second electric car, described first
Bidirectional, dc charger does not execute transformation operation for second charging current；When the voltage of the battery case of the first electric car
Less than or equal to the battery case of the second electric car voltage when, the first bidirectional, dc charger for it is described second charging
Electric current executes boost operations.
10. the charging system of electric car according to claim 8, which is characterized in that
Electricity and payment key in first charge request comprising being intended to provide；Second electric car, be also used to
The electricity being intended to provide described in the first electric car offer, and asking comprising the payment key is sent to third-party platform
Money request；After wherein third-party platform verifies the legitimacy for paying key, to second electric car and described first
Electric car sends the respective charge information for corresponding to the electricity being intended to provide respectively；Or
Electricity and payment key in second charge request comprising being intended to provide；First electric car, be also used to
The electricity being intended to provide described in the second electric car offer, and asking comprising the payment key is sent to third-party platform
Money request；After wherein third-party platform verifies the legitimacy for paying key, to first electric car and described second
Electric car sends the respective charge information for corresponding to the electricity being intended to provide respectively.
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| CN201810958473.0A CN109050315A (en) | 2018-08-22 | 2018-08-22 | A kind of charging method and charging system of electric car |
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Application publication date: 20181221 |