CN103903415B - The data transmission method and device of charging electric vehicle box - Google Patents
The data transmission method and device of charging electric vehicle box Download PDFInfo
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- CN103903415B CN103903415B CN201210594930.5A CN201210594930A CN103903415B CN 103903415 B CN103903415 B CN 103903415B CN 201210594930 A CN201210594930 A CN 201210594930A CN 103903415 B CN103903415 B CN 103903415B
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Abstract
The present invention proposes a kind of data transmission method of charging electric vehicle box, wherein, charging electric vehicle unit is connected with charging box, and this method comprises the following steps：Charging electric vehicle unit obtains the charge information of electric automobile；Charging electric vehicle unit according to charge information inquires about default definition table with id information and data message corresponding to obtaining；Charging electric vehicle unit is modulated to the dutycycle of pwm signal and sent to charging box according to id information and data message；And charging box is demodulated to pwm signal to obtain id information and data message, and charge information is obtained according to the default table that defines.Embodiments of the invention need not increase corresponding wireless communication equipment, you can charging box real-time display vehicle charging relevant information when realizing AC charging, be user-friendly.The invention also provides a kind of data transmission device of charging electric vehicle box.
Description
Technical field
The present invention relates to field of automobile, the data transmission method of more particularly to a kind of charging electric vehicle box and
Device.
Background technology
At present, due to shortage of resources, electric automobile turns into a kind of emerging energy vehicles, flourished, electronic
Automobile AC charging box also turns into a kind of new energy equipment and come out.But AC charging box can not show vehicle correlation in charging
Information.
Traditional its interface of AC charging box（L\NC1\NC2\N\PE\CC\CP）Data line is not contained, it is charging
Shi Wufa shows charge capacity, SOC（State of charge, state-of-charge）, the charging Vehicular charging information such as remaining time,
Reason is that its interface of AC charging box does not contain connection.
As shown in figure 1, the schematic diagram that defines of AC charging pod interface for prior art.As illustrated, AC charging connects
Mouth does not contain connection, and charging relevant information can not be sent to charging box by vehicle charge device when vehicle charges, therefore charge
Box can not show that user, which can not understand, gets information about current specific charge information, so as to bring inconvenience.
The content of the invention
It is contemplated that at least solve one of above-mentioned technical problem or provide at a kind of useful business selection.
Therefore, it is an object of the present invention to propose that one kind can realize that exchange is filled without corresponding wireless communication equipment
The data transmission method of the charging electric vehicle box for the relevant information that real-time display vehicle charges when electric.Another mesh of the present invention
Be propose a kind of data transmission device of charging electric vehicle box.
To achieve these goals, the first aspect of the present invention embodiment proposes a kind of data of charging electric vehicle box
Transmission method, charging electric vehicle unit are connected with charging box, and this method comprises the following steps：The charging electric vehicle unit
Obtain the charge information of electric automobile；The charging electric vehicle unit inquires about default definition table to obtain according to the charge information
Id information and data message corresponding to obtaining；The charging electric vehicle unit is believed PWM according to the id information and data message
Number dutycycle be modulated and send to the charging box；And the charging box is demodulated to the pwm signal to obtain
The id information and data message are obtained, and the charge information is obtained according to the default table that defines.
The data transmission method of charging electric vehicle box according to embodiments of the present invention, sets without increasing corresponding wireless communication
It is standby, in charging, by the way that according to the dutycycle of certain mode modulation (PWM) signal, pwm signal is sent for charging relevant information
To charging box, charging box carries out data demodulation in the same way, shows the relevant information of vehicle charging in real time.
The embodiment of second aspect of the present invention proposes a kind of data transmission device of charging electric vehicle box, including electronic
The charging box that automobile charhing unit is connected with the charging electric vehicle unit, wherein, the charging electric vehicle unit, it is used for
The charge information of electric automobile is obtained, and default definition table inquired about according to the charge information with id information sum corresponding to obtaining
It is believed that breath, and the dutycycle of pwm signal is modulated according to the id information and data message and sent to the charging
Box；And the charging box, for being demodulated to the pwm signal to obtain the id information and data message, and according to
The default table that defines obtains the charge information.
The data transmission device of charging electric vehicle box according to embodiments of the present invention, sets without increasing corresponding wireless communication
It is standby, in charging, by the way that according to the dutycycle of certain mode modulation (PWM) signal, pwm signal is sent for charging relevant information
To charging box, charging box carries out data demodulation in the same way, shows the relevant information of vehicle charging in real time.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the schematic diagram that the AC charging pod interface of prior art defines；
Fig. 2 is the flow chart according to the data transmission method of the charging electric vehicle box of one embodiment of the invention；
Fig. 3 is the PWM cycle waveform according to the data transmission method of the charging electric vehicle box of one embodiment of the invention
The packet definition table of transmission；
Fig. 4 is the PWM cycle ripple according to the data transmission method of the charging electric vehicle box of another embodiment of the present invention
Shape transport packet definition modification table；
Fig. 5 is to be defined according to the pwm signal of the data transmission method of the charging electric vehicle box of one embodiment of the invention
Table；
Fig. 6 is the structure chart according to the data transmission device of the charging electric vehicle box of one embodiment of the invention；
Fig. 7 shows whole for the charging box of the data transmission device of the charging electric vehicle box according to one embodiment of the invention
Car relevant information defines table；
Fig. 8 is the data transmission scheme according to the data transmission device of the charging electric vehicle box of one embodiment of the invention；
And
Fig. 9 is to be sent to say according to the SOC10 of the data transmission device of the charging electric vehicle box of one embodiment of the invention
Bright table.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than instruction or dark
Show that the device of meaning or element there must be specific orientation, with specific azimuth configuration and operation, thus it is it is not intended that right
The limitation of the present invention.In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint are relative
Importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
The data transmission method of charging electric vehicle box according to embodiments of the present invention is described below in conjunction with accompanying drawing 2-5.
Fig. 2 is the flow chart according to the data transmission method of the charging electric vehicle box of one embodiment of the invention.Such as Fig. 2
It is shown, the data transmission method of charging electric vehicle box according to an embodiment of the invention, wherein, charging electric vehicle unit
It is connected with charging box, this method comprises the following steps：
Step S201, charging electric vehicle unit obtain the charge information of electric automobile.
Specifically, charge information is, for example,：Vehicle VIN（Vehicle Identification Number, vehicle identification
Code）Code, battery SOC, charging remaining time, total current, total voltage, minimum voltage battery number, single-unit minimum voltage, ceiling voltage
Battery number, single-unit ceiling voltage, minimum temperature battery number, single-unit minimum temperature, maximum temperature battery number, single-unit maximum temperature,
Vehicle trouble messages, controller working condition, charge capacity, alternating voltage and alternating current etc..Wherein, vehicle trouble messages bag
Include：Vehicle trouble messages 1 and vehicle trouble messages 2.
Step S202, charging electric vehicle unit inquire about default definition table to obtain corresponding id information according to charge information
And data message.
Each charge information has its corresponding ID and specific data i.e. in the form pre-defined, then default
It can be inquired about in definition table according to specific charge information and obtain its corresponding id information and data message.
Step S203, charging electric vehicle unit are adjusted according to id information and data message to the dutycycle of pwm signal
Make and send to charging box.
I.e. after charhing unit obtains its corresponding id information and data message according to specific charge information, further according to this
Id information and data message are modulated to the dutycycle of corresponding pwm signal according to certain mode and by the PWM after modulation
Signal confirms that CP lines are sent to charging box by the control between charging electric vehicle unit and charging box, then the PWM after modulating
The dutycycle of signal corresponds to the id information and data message of the charge information.Wherein, id information corresponds to corresponding data message
And parameter.The wavelength degree of pwm signal includes corresponding id information and data message, and pwm signal has fixed frequency, at this
In one embodiment of invention, fixed frequency is 1HZ to 1KHZ, preferably 1KHZ.
Step S204, charging box are demodulated to pwm signal to obtain id information and data message, and according to default definition
Table obtains charge information.
I.e. when showing charge information, charging box is demodulated in the same fashion to the pwm signal of modulation, obtains phase
The id information and data message answered, and the specific charging letter according to corresponding to default definition table inquires about the id information and data message
Breath, and the charge information inquired is shown.
As a specific example, as shown in figure 3, the number of charging electric vehicle box according to an embodiment of the invention
According to the packet definition table of transmission method PWM cycle waveform transfer, in this example, pass through fixed frequency（1HZ ~ 1MHZ,
It is preferred that 1KHZ）24 PWM cycle waveform transfer packets, wherein, ID, data field, even-odd check bit length enter as needed
Row length adjustment.Packet definition ID scopes are 0 ~ 4294967295, are preferentially up to 31 i.e. length 5.Packet definition data
Area's scope is 0 ~ 4294967295, preferably at most 65535 i.e. length 16.Packet parity check bit scope 0 ~
4294967295, preferentially it is up to 15 i.e. length 4.
Fig. 3 can be adjusted according to being actually needed, as shown in figure 4, being the electricity according to another embodiment of the present invention
The pwm signal periodic waveform transport packet definition modification table of the data transmission method of electrical automobile charging box.Fig. 4 shows：
1st, during data transfer, high-order preceding, low level is rear.
2nd, verification mode uses 4 bit check modes, as follows：
V is that the data X1 ~ X6 of one 4 is represented respectively
X1 represents bit2 ~ bit5 in agreement
X2 represents bit6 ~ bit9 in agreement
X3 represents bit10 ~ bit13 in agreement
X4 represents bit14 ~ bit17 in agreement
X5 represents bit18 ~ bit21 in agreement
X6 represents high 3 of bit22 in agreement and mends 0
V=X1+X2+C；If X1+X2 is more than 0x0F, C 1, otherwise C is 0
V=V+X3+C；If V+X3 is more than 0x0F, C 1, otherwise C is 0
V=V+X4+C；
V=V+X5+C；
V=V+X6+C；
V=V&0x0F；
V=V^0x06；XOR 0x06, after this algorithm, finally take V values.
In above process can also be without using check bit.
As shown in figure 5, in one embodiment of the invention, fixed frequency can also be used to be realized by changing dutycycle
Data transfer；And also can be according to actual adjustment on PWM duty cycle part, start bit, stop bits and 0/1 represent different.
When dutycycle be 1% ~ 99% when the preferred program and preferred Fig. 5 in dutycycle.
The data transmission method of charging electric vehicle box according to embodiments of the present invention, sets without increasing corresponding wireless communication
It is standby, in charging, by the way that according to the dutycycle of certain mode modulation (PWM) signal, pwm signal is sent for charging relevant information
To charging box, charging box carries out data demodulation in the same way, and shows the relevant information of vehicle charging in real time.
Fig. 6 is the structure chart according to the data transmission device of the charging electric vehicle box of one embodiment of the invention.
As shown in fig. 6, the data transmission device 600 of charging electric vehicle box according to an embodiment of the invention, including：
Charging electric vehicle unit 610 and charging box 620.Wherein, charging electric vehicle unit 610 is connected with charging box 620.
Charging electric vehicle unit 610 is used for the charge information for obtaining electric automobile, and is inquired about in advance according to the charge information
Adopted table is set with id information corresponding to obtaining and data message, then the duty according to id information and data message to pwm signal
Than being modulated and sending to charging box 620.
Specifically, the charge information of electric automobile is obtained first, and each charge information has it in default definition table
Corresponding ID and specific data, then inquired about in default definition table according to specific charge information and obtain its corresponding ID
Information and data message, the dutycycle further according to the id information and data message according to certain mode to corresponding pwm signal
It is modulated and the pwm signal after modulation is confirmed into CP by the control between charging electric vehicle unit 610 and charging box 620
Line is sent to charging box 620, then the dutycycle of the pwm signal after modulating corresponds to the id information and data letter of the charge information
Breath.Wherein, the meaning of id information corresponding data information.Charge information is, for example,：Vehicle VIN（Vehicle
Identification Number, vehicle identification code）Code, battery SOC, charging remaining time, total current, total voltage, minimum electricity
Piezoelectric battery number, single-unit minimum voltage, ceiling voltage battery number, single-unit ceiling voltage, minimum temperature battery number, single-unit lowest temperature
Degree, maximum temperature battery number, single-unit maximum temperature, vehicle trouble messages, controller working condition, charge capacity, alternating voltage
And alternating current etc..Wherein, vehicle trouble messages include：Vehicle trouble messages 1 and vehicle trouble messages 2.
Charging box 620 to pwm signal due to being demodulated to obtain id information and data message, and according to default definition table
Obtain charge information.
Specifically, when showing charge information, charging box 620 solves in the same fashion to the pwm signal of modulation
Adjust, obtain corresponding id information and data message, and according to corresponding to default definition table inquires about the id information and data message
Specific charge information, and the charge information inquired is shown.Wherein, the wavelength degree of pwm signal is believed including corresponding ID
Breath and data message, and pwm signal has fixed frequency, in one embodiment of the invention, fixed frequency be 1HZ extremely
1KHZ, preferably 1KHZ.
As a specific example, as shown in fig. 7, being the charging electric vehicle box according to one embodiment of the invention
The charging box of data transmission device shows that vehicle relevant information defines table, represents to have by ID, meaning and data separation resolution
The charge data of body, each ID have its corresponding meaning and data message.Such as：When ID is 00000, its meaning shown is
Vehicle VIN codes, its data message are the ASCII character of standard；When ID is 00001, the meaning that device is shown is battery SOC, corresponding
Data message be 1%, ID be 00111 when, corresponding meaning is minimum ceiling voltage battery number, and specific data message is 1-
600。
As shown in figure 8, the data of the data transmission device for the charging electric vehicle box according to one embodiment of the invention
Transmission figure, with reference to Fig. 7, charging electric vehicle unit 610 will charge relevant information in the way of shown in Fig. 7 to pwm signal
Dutycycle is modulated, and is sent the pwm signal after modulation to charging box 620 by CP lines, and charging box 620 is further according to the party
Formula obtains the charge information of correlation after being demodulated to pwm signal, and displays it.
As shown in figure 9, the SOC10 of the data transmission device for the charging electric vehicle box according to one embodiment of the invention
Transmission illustrate table, charging electric vehicle unit accounts for vehicle charge information according to the pwm signal shown in Fig. 9 in charging process
The form of empty ratio sent to charging box by CP lines, such as transmission obtains for SOC10%, charging box according to agreement as shown in Figure 9
The PWM duty cycle after modulation is taken, shows corresponding charge information after being then demodulated.Such as：When ID is 00001
When, now corresponding charge information is battery SOC and parameter, and parameter such as 1%, i.e., the charge information that charging box is shown is that SOC is
1%。
The data transmission device of charging electric vehicle box according to embodiments of the present invention, sets without increasing corresponding wireless communication
It is standby, in charging, by the way that according to the dutycycle of certain mode modulation (PWM) signal, pwm signal is sent for charging relevant information
To charging box, charging box carries out data demodulation in the same way, shows the relevant information of vehicle charging in real time.
Any process or method described otherwise above description in flow chart or herein is construed as, and represents to include
Module, fragment or the portion of the code of the executable instruction of one or more the step of being used to realize specific logical function or process
Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discuss suitable
Sequence, including according to involved function by it is basic simultaneously in the way of or in the opposite order, carry out perform function, this should be sent out by this
Bright embodiment person of ordinary skill in the field is understood.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use
In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment（As computer based system including the system of processor or other can be held from instruction
The system of row system, device or equipment instruction fetch and execute instruction）Use, or combine these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicate, propagate or pass
Defeated program is for instruction execution system, device or equipment or the dress used with reference to these instruction execution systems, device or equipment
Put.The more specifically example of computer-readable medium（Non-exhaustive list）Including following：Electricity with one or more wiring
Connecting portion（Electronic installation）, portable computer diskette box（Magnetic device）, random access memory（RAM）, read-only storage
（ROM）, erasable edit read-only storage（EPROM or flash memory）, fiber device, and portable optic disk is read-only deposits
Reservoir（CDROM）.In addition, computer-readable medium, which can even is that, to print the paper of described program thereon or other are suitable
Medium, because can then enter edlin, interpretation or if necessary with it for example by carrying out optical scanner to paper or other media
His suitable method is handled electronically to obtain described program, is then stored in computer storage.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be any
One or more embodiments or example in combine in an appropriate manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
In the case of departing from the principle and objective of the present invention a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The scope of invention is by claim and its equivalent limits.
Claims (10)
1. a kind of data transmission method of charging electric vehicle box, it is characterised in that charging electric vehicle unit and charging box phase
Even, the described method comprises the following steps：
The charging electric vehicle unit obtains the charge information of electric automobile；
The charging electric vehicle unit according to the charge information inquires about default definition table with id information sum corresponding to obtaining
It is believed that breath；
The charging electric vehicle unit is modulated concurrently according to the id information and data message to the dutycycle of pwm signal
The charging box is delivered to, wherein, the wavelength degree of the pwm signal includes the id information and data message, the id information pair
Answer the meaning of data message；And
The charging box is demodulated to the pwm signal to obtain the id information and data message, and according to described default
Define table and obtain the charge information.
2. the data transmission method of charging electric vehicle box as claimed in claim 1, it is characterised in that the electric automobile
Charge information includes：Vehicle VIN codes, battery SOC, charging remaining time, total current, total voltage, minimum voltage battery number, single-unit
Minimum voltage, ceiling voltage battery number, single-unit ceiling voltage, minimum temperature battery number, single-unit minimum temperature, maximum temperature battery
Number, single-unit maximum temperature, vehicle trouble messages, controller working condition, charge capacity, alternating voltage and alternating current.
3. the data transmission method of charging electric vehicle box as claimed in claim 1, it is characterised in that the pwm signal leads to
The control crossed between the charging electric vehicle unit and charging box confirms that CP lines are sent to the charging box.
4. the data transmission method of charging electric vehicle box as claimed in claim 1, it is characterised in that the pwm signal tool
There is fixed frequency, and the fixed frequency is 1HZ to 1KHZ.
5. the data transmission method of charging electric vehicle box as claimed in claim 1, it is characterised in that also include：
The charging box shows the charge information.
A kind of 6. data transmission device of charging electric vehicle box, it is characterised in that including charging electric vehicle unit, with it is described
The connected charging box of charging electric vehicle unit, wherein,
The charging electric vehicle unit, inquired about in advance for obtaining the charge information of electric automobile, and according to the charge information
Adopted table is set to obtain corresponding id information and data message, and according to the id information and data message to pwm signal
Dutycycle, which is modulated and sent to the charging box, the wavelength degree of the pwm signal, includes the id information and data message,
The meaning of the id information corresponding data information；And
The charging box, for being demodulated to the pwm signal to obtain the id information and data message, and according to described
The default table that defines obtains the charge information.
7. the data transmission device of charging electric vehicle box as claimed in claim 6, it is characterised in that the electric automobile
Charge information includes：Vehicle VIN codes, battery SOC, charging remaining time, total current, total voltage, minimum voltage battery number, single-unit
Minimum voltage, ceiling voltage battery number, single-unit ceiling voltage, minimum temperature battery number, single-unit minimum temperature, maximum temperature battery
Number, single-unit maximum temperature, vehicle trouble messages 1, vehicle trouble messages 2, controller working condition, charge capacity, alternating voltage
And alternating current.
8. the data transmission device of charging electric vehicle box as claimed in claim 6, it is characterised in that the pwm signal leads to
The control crossed between the charging electric vehicle unit and charging box confirms that CP lines are sent to the charging box.
9. the data transmission device of charging electric vehicle box as claimed in claim 6, it is characterised in that the pwm signal tool
There is fixed frequency, and the fixed frequency is 1HZ to 1KHZ.
10. the data transmission device of charging electric vehicle box as claimed in claim 6, it is characterised in that the charging box is also
For showing the charge information.
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| CN201210594930.5A CN103903415B (en) | 2012-12-27 | 2012-12-27 | The data transmission method and device of charging electric vehicle box |
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| CN201210594930.5A CN103903415B (en) | 2012-12-27 | 2012-12-27 | The data transmission method and device of charging electric vehicle box |
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| JP6927766B2 (en) * | 2017-06-29 | 2021-09-01 | 矢崎総業株式会社 | Information setting device |
| CN108463006A (en) * | 2018-03-23 | 2018-08-28 | 重庆唐古拉科技有限公司 | A kind of transmitting terminal under wireless charging scene and receiving terminal matching method and system |
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| CN2323493Y (en) * | 1997-12-09 | 1999-06-09 | 北京工业大学 | Battery charging controlling device |
| GB2333673A (en) * | 1998-01-21 | 1999-07-28 | Nokia Mobile Phones Ltd | Despreading a signal which has been spread by a code and modulated according to a non-linear modulation scheme |
| KR100427364B1 (en) * | 2002-03-06 | 2004-04-14 | 현대자동차주식회사 | Battery system current measuring system of electric vehicle |
| JP2006302733A (en) * | 2005-04-22 | 2006-11-02 | Matsushita Electric Ind Co Ltd | Battery pack and its connection system |
| DE102009025303A1 (en) * | 2009-06-15 | 2010-12-16 | Rwe Ag | Method and device for communication between an electric vehicle and a charging station |
| CN201699442U (en) * | 2010-05-21 | 2011-01-05 | 西安交通大学 | Battery intelligent management system |
| CN102468656B (en) * | 2010-11-04 | 2014-07-16 | 凹凸电子（武汉）有限公司 | Charging control device, method and battery management system |
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