CN207984608U - A kind of charging system of electric powercar of enhancement information interaction - Google Patents
A kind of charging system of electric powercar of enhancement information interaction Download PDFInfo
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- CN207984608U CN207984608U CN201820353830.6U CN201820353830U CN207984608U CN 207984608 U CN207984608 U CN 207984608U CN 201820353830 U CN201820353830 U CN 201820353830U CN 207984608 U CN207984608 U CN 207984608U
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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
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- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The utility model provides a kind of charging system of electric powercar of enhancement information interaction, including controller of vehicle and Vehicular charger, main control module is equipped in controller of vehicle, controller of vehicle also includes wireless communication module, power line carrier module, the one of which of CP line dilatation communication modules or two kinds and the CAN communication unit for being communicated with alternating-current charging pile realization data；Wireless communication module, power line carrier module, CP line dilatations communication module are connected with main control module communication respectively；Main control module is connected by the vehicle CAN bus of CAN communication unit and electric vehicle with the battery management system of electric vehicle；Power line carrier module is connect with AC charging line；CP line dilatation communication modules are connect with the CP signal wires in Vehicular charging line, the data-signal for receiving and sending while including multiple voltage values；The charged information of battery can be sent the external device (ED)s such as charging pile by the utility model, at the same when promoting communication transmission data capacity and efficiency.
Description
Technical field
The utility model is related to electric vehicle charging technique fields, and in particular to a kind of electric vehicle charging of enhancement information interaction
System.
Background technology
According to national standard, electric vehicle only has CP lines in Vehicular charging line and PE lines for communicating in AC charging；
The information such as the charged situation of battery, charging remaining time cannot be transmitted charging pile by existing electric vehicle in charging, thus be charged
It stands existing charge information can not be carried out uploading and share, both charging person was facilitated to check charge information in mobile phone end, and be also convenient for
Other persons to be charged flexibly select charging pile or grasp the travel time；In addition, the signal of existing AC charging confirms mostly by " opening
The mode of pass, contact " realizes that PWM transmitting terminals do not have the function of receiving signal usually, can not identify a string of numbers in transmission
It is believed that number in, while including the signal of the multiple voltage magnitudes of such as 12V, 9V, 6V；Data communication capacity is promoted, transmission is more
Data, to solve this problem, it is necessary to be furtherd investigate.
Utility model content
For the deficiency in the presence of the prior art, the electric vehicle that the utility model provides a kind of interaction of enhancement information fills
Electric system, its object is to can the charged information of battery be sent the external device (ED)s such as charging pile, while while promoting communication, transmits
The capacity and efficiency of data.
To achieve the above object, the utility model uses the following technical solution：
A kind of charging system of electric powercar of enhancement information interaction, including controller of vehicle and Vehicular charger, vehicle control
Main control module is equipped in device processed, the controller of vehicle also includes the nothing for being communicated with alternating-current charging pile realization data
Line communication module, power line carrier module, the one of which of CP line dilatation communication modules or two kinds and CAN communication unit；Its
In, wireless communication module, power line carrier module, CP line dilatations communication module are connected with main control module communication respectively；Master control
Molding block is connected by the vehicle CAN bus of CAN communication unit and electric vehicle with the battery management system of electric vehicle；Power line carries
Wave module is connect with AC charging line；The CP lines dilatation communication module is connect with the CP signal wires in Vehicular charging line, is used for
Receive and send while including the data-signal of multiple voltage values.
Further, the CP lines dilatation communication module includes pwm signal transmitting-receiving control unit, voltage magnitude adjustment list
Member, signal conversion unit；The pwm signal transmitting-receiving control unit includes the first input/output terminal, the second input/output terminal, is also wrapped
Containing several control output ends；
The signal conversion unit include the first metal-oxide-semiconductor, the second metal-oxide-semiconductor, hysteresis loop comparator, latch, with logic circuit,
And not circuit, ground resistance R2 and ground resistance R3；
The voltage magnitude adjustment unit includes switching switch S1, current-limiting resistance R1, NPN triode, base resistance R4, collection
Electrode resistance R5, third metal-oxide-semiconductor and the mutually different zener diode D1 of voltage stabilizing parameter, zener diode D2；
The base stage of the NPN triode controls defeated through one of base resistance R4 and pwm signal transmitting-receiving control unit
Outlet is individually connected；The emitter of NPN triode is connected with the DC reference ground terminal of CP line dilatation communication modules, NPN triode
Collector be connected with the DC power supply terminal of CP line dilatation communication modules through collector resistance R5, and the collector of NPN triode
It is connected with the grid of third metal-oxide-semiconductor；The source of the cathode of the zener diode D1, the cathode of zener diode D2, third metal-oxide-semiconductor
Pole, the drain electrode of the second metal-oxide-semiconductor, the drain electrode of the first metal-oxide-semiconductor, the input terminal of hysteresis loop comparator are connected with each other；Zener diode D1's
Anode, the anode of zener diode D2 are corresponding with the switching end of switching switch connected respectively, and the switch for switching switch is public
End is connected with the drain electrode of third metal-oxide-semiconductor, and the DC reference ground terminal of CP line dilatation communication modules is connected to through current-limiting resistance R1；
The source electrode of first metal-oxide-semiconductor, the second metal-oxide-semiconductor source electrode respectively with the first input/output terminal, the second input/output terminal one
One correspondence is connected；The grid of first metal-oxide-semiconductor is connected to the output end of and not circuit；The grid of second metal-oxide-semiconductor be connected to
The output end of logic circuit；It is connected to hysteresis after one of and not circuit and logic circuit input terminal are connected with each other
The output end of comparator；It is independently connected after the latched device in two of which control output end of pwm signal transmitting-receiving control unit
Input terminal to and not circuit, with logic circuit；It is first input/output terminal of pwm signal transmitting-receiving control unit, second defeated
Enter output end and distinguish grounded resistance R3, ground resistance R2 is connected to the DC reference ground terminal of CP line dilatation communication modules.
Wireless communication module, power line carrier module and the realization of CP line dilatation communication modules may be selected in the utility model will be electric
The battery information of motor-car passes to the external device (ED)s such as charging pile or the network platform, and realizes profit by CP line dilatation communication modules
Data transmission capacity is promoted with existing charging CP line communication paths.
Compared with the prior art, the utility model has the advantages that：
(1) transmission data when, can the charged information of battery be sent the external device (ED)s such as charging pile, while promote communication
Capacity and efficiency；
(2) it, can be sent by CP line dilatation communication modules while include the pwm signal of different voltages amplitude, can also received
And the pwm signal differentiated while including different voltages amplitude, increase the transmission capacity of pwm signal；
(3), enable electric vehicle that signal is uploaded to the network platform by wireless communication modules such as 3G communication units, be convenient for
The jam situation of charging queuing is checked by APP clients using mobile phone.
Description of the drawings
Fig. 1 is the principle logic diagram of embodiment.
Fig. 2 is the schematic diagram of CP line dilatation communication modules in embodiment.
Fig. 3 is that signal sends the connection diagram that driving unit/signal receives pressure regulation unit in embodiment.
Specific implementation mode
The technical solution in the utility model is further illustrated with reference to the accompanying drawings and embodiments.
A kind of charging system of electric powercar of enhancement information interaction, including controller of vehicle and Vehicular charger, such as Fig. 1 institutes
Show, main control module is equipped in controller of vehicle, and the controller of vehicle also includes for realizing data with external device (ED)
The wireless communication module of communication, power line carrier module, the one of which of CP line dilatation communication modules or two kinds and CAN communication
Unit；Wherein, wireless communication module, power line carrier module, CP line dilatation communication modules communicate phase with main control module respectively
Even；Main control module is connected by the battery management system of the vehicle CAN bus and electric vehicle of CAN communication unit and electric vehicle；
Power line carrier module is connect with AC charging line；The CP lines dilatation communication module connects with the CP signal wires in Vehicular charging line
It connects, the data-signal for receiving and sending while including multiple voltage values.It is communicated by power line carrier module, CP line dilatations
Module and wireless communication module so that the charged situation related data in battery management system can be passed to charging by electric vehicle
Stake or charging station, but also electric vehicle has the hardware condition of the relevant informations such as the charge data for obtaining client's purchase, so as to
It realizes the grasp to charging time or queuing time, plan of travel is arranged or selected convenient for everybody；Wherein, the radio communication mold
Block is penetrated comprising NFC communication unit, 4G communication units, 3G communication units, bluetooth-communication unit, WIFI communication units, 315M/433M
The one of which of frequency communication unit；NFC communication unit, bluetooth-communication unit, 315M/433M radio frequency communications units make electric vehicle
Charge data that can be directly with scene interacts；WIFI communication units, 3G communication units, 4G communication units make electric vehicle
Signal can be uploaded to the network platform, convenient for checking the jam situation of charging queuing by APP clients using mobile phone.
As shown in Fig. 2, CP line dilatation communication modules include pwm signal transmitting-receiving control unit U1, voltage magnitude adjustment unit,
Signal conversion unit；The pwm signal transmitting-receiving control unit U1 includes the first input/output terminal t1, the second input/output terminal t2,
Also include control output end t3-t5；The main control module, pwm signal transmitting-receiving control unit are respectively different independent control
Device is realized by a shared control unit；The independent control or shared control unit include in ARM embeded processors, FPGA
One of which；One side pin is more, extends and realizes convenient for scheme, and on the other hand, the crystal oscillator frequency being correspondingly connected with is high, favorably
In the data capacity for promoting transmission；
The signal conversion unit include the first metal-oxide-semiconductor Q1, the second metal-oxide-semiconductor Q2, hysteresis loop comparator A1, latch La1, with
Logic circuit U2, and not circuit U3, ground resistance R2 and ground resistance R3；
The voltage magnitude adjustment unit include switching switch S1, current-limiting resistance R1, NPN triode Q4, base resistance R4,
Collector resistance R5, third metal-oxide-semiconductor Q3 and the mutually different zener diode D1 of voltage stabilizing parameter, zener diode D2；
Control output end t5 of the base stage of the NPN triode Q4 through base resistance R4 Yu pwm signal transmitting-receiving control unit
Individually it is connected；The emitter of NPN triode Q4 is connected with the DC reference ground terminal of CP line dilatation communication modules, NPN triode Q4
Collector be connected with the DC power supply terminal of CP line dilatation communication modules through collector resistance R5, and the current collection of NPN triode Q4
Pole is connected with the grid of third metal-oxide-semiconductor Q3；The cathode of the zener diode D1, the cathode of zener diode D2, third metal-oxide-semiconductor
The source electrode of Q3, the drain electrode of the second metal-oxide-semiconductor Q2, the drain electrode of the first metal-oxide-semiconductor Q1, the input terminal of hysteresis loop comparator A1 are connected with each other；Surely
The anode of the anode, zener diode D2 of pressing diode D1 is corresponding with the switching switching end of switch S1 respectively to be connected, switching
The switch common end of switch S1 is connected with the drain electrode of third metal-oxide-semiconductor Q3, and is connected to CP line dilatations through current-limiting resistance R1 and communicates mould
The DC reference ground terminal of block；The switching switch S1 includes the one of which of analog switch, relay, in order to control, control
End can also be connected with the control output end of pwm signal transmitting-receiving control unit.
The source electrode of first metal-oxide-semiconductor Q1, the source electrode Q2 of the second metal-oxide-semiconductor are defeated with the first input/output terminal t1, the second input respectively
Outlet t2, which is corresponded, to be connected；The grid of first metal-oxide-semiconductor Q1 is connected to the output end of and not circuit U2；Second metal-oxide-semiconductor
Grid is connected to the output end with logic circuit；It is and not circuit U2, mutual with one of logic circuit U3 input terminal
And the output end of hysteresis loop comparator A1 is connected to after connecing；Two of which control output end t3, t4 of pwm signal transmitting-receiving control unit
And not circuit U2, the input terminal with logic circuit U3 are independently connected to after latched device La1；Pwm signal transmitting-receiving control
First input/output terminal t1 of unit processed, the second input/output terminal t2 distinguish grounded resistance R3, and ground resistance R2 is connected to CP
The DC reference ground terminal of line dilatation communication module.
Driving unit, signal reception pressure regulation list are sent as shown in figure 3, above-mentioned CP lines dilatation communication module also includes signal
Member, driving power, the first transmitting-receiving control switch, the second transmitting-receiving control switch；Wherein, it includes times magnification that signal, which sends driving unit,
Linear amplifier of the number more than 1, can be used in-phase amplifier and emitter follower, and the input terminal of in-phase amplifier is sent out as signal
The input terminal of driving unit is sent, and is connected with the input terminal of hysteresis loop comparator；The output end and emitter follower of in-phase amplifier
Input terminal be connected, the output end of the output end of emitter follower as signal transmission driving unit；In-phase amplifier, emitter-base bandgap grading with
It is connected with driving power by the first transmitting-receiving control switch with the feeder ear of device；It includes that amplification factor is small that signal, which receives pressure regulation unit,
In 1 linear amplification unit, inverting amplifier can be used, the input terminal of inverting amplifier receives the defeated of pressure regulation unit as signal
Enter end, the output of inverting amplifier receives the output end of pressure regulation unit as signal；The feeder ear of inverting amplifier passes through second
Transmitting-receiving control switch is connected with driving power；The first transmitting-receiving control switch, the second transmitting-receiving control switch comprising relay or
Metal-oxide-semiconductor；It is reverse phase on the whole that signal, which sends the signal that driving unit is sent out and receives the signal that pressure regulation unit receives with signal, as a result,
Logical relation is convenient for identification and correction process of the control unit for communication data；Parameter designing by amplification factor and drive
The size selection of dynamic power supply can easily provide the voltage logic of data communication in wider range, it is logical to also increase data
The driving capability of letter；The feeder ear that signal sends driving unit is connected through the first transmitting-receiving control switch with driving power, and signal connects
The feeder ear for receiving pressure regulation unit is connected through the second transmitting-receiving control switch with driving power；Signal sends the input of driving unit, letter
It number receives the output of pressure regulation unit mutually and is connected to the input terminal of hysteresis loop comparator；Signal sends the output of driving unit, signal
The CP lines for receiving the input of pressure regulation unit mutually and being connected in Vehicular charging line；First transmitting-receiving control switch, the second transmitting-receiving control
The control terminal of switch is correspondingly connected with the input terminal for being connected to latch with logic circuit, and not circuit respectively；Pass through PWM
The output of signal transmitting and receiving control unit makes the first transmitting-receiving control switch, the second transmitting-receiving control by switching selection or structure design
Switch while only one of which switch conduction, to be squeezed to communication line when pwm signal being avoided to send with pwm signal reception
Account for and signal interference, and only when pwm signal transmitting-receiving control unit sends out once command, at the same to the first transmitting-receiving control switch,
Second transmitting-receiving control switch, the first metal-oxide-semiconductor, the second metal-oxide-semiconductor synchronous control, need not occupy control unit more multiplex roles or beat
Resource, you can it realizes, it is convenient and efficient；On the other hand, it is led by the switch of the first transmitting-receiving control switch, the second transmitting-receiving control switch
Logical control so that any time, which only has signal to send driving unit or signal reception pressure regulation unit, to be worked normally, thus
Keep having protective effect while communication, and although traditional protective circuit of diode has protective effect, but can not be compatible with
Two-way communication.In addition, the output end in inverting amplifier and/or in-phase amplifier is further connected with Overvoltage protecting unit, such as connect steady
Diode is pressed, to ensure the voltage security in data communication process, improves system reliability.
Using CP line dilatation communication modules when sending PWM waveform, signal is sent by pwm signal transmitting-receiving control unit,
After latched device, only the first metal-oxide-semiconductor of selection or the conducting of the second metal-oxide-semiconductor are determined, when third metal-oxide-semiconductor is connected, zener diode D1,
Zener diode D2 and switching switch are short-circuited, and the signal amplitude voltage that pwm signal transmitting-receiving control unit is sent out is constant；Work as third
Metal-oxide-semiconductor is obstructed, and then signal amplitude can be corresponding after switching switch S1 selection connections zener diode D1 or zener diode D2
It is restricted to corresponding voltage；The antilogical of NPN triode is controlled by pwm signal transmitting-receiving control unit, realizes third metal-oxide-semiconductor
Quick acting, you can it includes different voltages amplitude pwm signal simultaneously to send out, and using this characteristic, can promote PWM letters
Number capacity, i.e., the pwm signal of two or three of amplitude is simultaneously emitted by；
CP line dilatation communication modules are when preparing reception while comprising the pwm signal of two kinds of amplitudes, pwm signal transmitting-receiving control
Unit sends out signal in advance so that it is 1 that latch, which is output to the input of logic circuit, and not circuit, and hysteresis compares
The component parameters design of device makes the high side voltage of its turnover voltage be more than the voltage that amplitude is smaller in pwm signal, is thus only believing
The output switching activity of hysteresis loop comparator or variation when the voltage of maximum amplitude arrives in number.When PWM count is according to transmission, highest amplitude is believed
Number voltage come interim, hysteresis loop comparator exports high level, then by with after logic circuit, and not circuit, the second metal-oxide-semiconductor
Conducting, the first metal-oxide-semiconductor disconnect, and the second input/output terminal of pwm signal transmitting-receiving control unit receives the high level of pwm signal；
When PWM count is according to transmission, the voltage of weak amplitude signal comes interim, due to the turnover voltage less than hysteresis loop comparator, hysteresis loop comparator
Low-voltage is exported, by with after logic circuit, and not circuit, the second metal-oxide-semiconductor disconnects, and the first metal-oxide-semiconductor is connected；At this point, PWM
Second input/output terminal of signal transmitting and receiving control unit is low level due to resistance grounded, and the first input/output terminal then can
Normally receive and identify the pwm signal of weak amplitude.
Finally illustrate, above example is merely intended for describing the technical solutions of the present application, but not for limiting the present application, although ginseng
The utility model is described in detail according to preferred embodiment, it will be understood by those of ordinary skill in the art that, it can be to this
The technical solution of utility model is modified or replaced equivalently, without departing from the objective and model of technical solutions of the utility model
It encloses, should all cover in the right of the utility model.
Claims (8)
1. a kind of charging system of electric powercar of enhancement information interaction, including controller of vehicle and Vehicular charger, vehicle control
Main control module is equipped in device, it is characterised in that：The controller of vehicle also includes for realizing data with external device (ED)
The wireless communication module of communication, power line carrier module, the one of which of CP line dilatation communication modules or two kinds and CAN communication
Unit；Wherein, wireless communication module, power line carrier module, CP line dilatation communication modules communicate phase with main control module respectively
Even；Main control module is connected by the battery management system of the vehicle CAN bus and electric vehicle of CAN communication unit and electric vehicle；
Power line carrier module is connect with AC charging line；The CP lines dilatation communication module connects with the CP signal wires in Vehicular charging line
It connects, the data-signal for receiving and sending while including multiple voltage values.
2. a kind of charging system of electric powercar of enhancement information interaction as described in claim 1, it is characterised in that：The CP lines expand
It includes pwm signal transmitting-receiving control unit, voltage magnitude adjustment unit, signal conversion unit to hold communication module；The pwm signal is received
It includes the first input/output terminal, the second input/output terminal to send out control unit, also includes several control output ends；
The signal conversion unit include the first metal-oxide-semiconductor, the second metal-oxide-semiconductor, hysteresis loop comparator, latch, with logic circuit, with it is non-
Logic circuit, ground resistance R2 and ground resistance R3；
The voltage magnitude adjustment unit includes switching switch S1, current-limiting resistance R1, NPN triode, base resistance R4, collector
Resistance R5, third metal-oxide-semiconductor and the mutually different zener diode D1 of voltage stabilizing parameter, zener diode D2；
The base stage of the NPN triode is through the control output end one of base resistance R4 and pwm signal transmitting-receiving control unit
Individually it is connected；The emitter of NPN triode is connected with the DC reference ground terminal of CP line dilatation communication modules, the collection of NPN triode
Electrode is connected through collector resistance R5 with the DC power supply terminal of CP line dilatation communication modules, and the collector of NPN triode and
The grid of three metal-oxide-semiconductors is connected；The cathode of the zener diode D1, the cathode of zener diode D2, third metal-oxide-semiconductor source electrode,
The drain electrode of second metal-oxide-semiconductor, the drain electrode of the first metal-oxide-semiconductor, the input terminal of hysteresis loop comparator are connected with each other；The sun of zener diode D1
Pole, the anode of zener diode D2 are corresponding with the switching end of switching switch connected respectively, switch the switch common end of switch
It is connected with the drain electrode of third metal-oxide-semiconductor, and is connected to the DC reference ground terminal of CP line dilatation communication modules through current-limiting resistance R1；
The source electrode of first metal-oxide-semiconductor, the source electrode of the second metal-oxide-semiconductor are a pair of with the first input/output terminal, the second input/output terminal one respectively
It should be connected；The grid of first metal-oxide-semiconductor is connected to the output end of and not circuit；The grid of second metal-oxide-semiconductor is connected to and logic
The output end of circuit；And not circuit, it is connected with each other with one of logic circuit input terminal after be connected to hysteresis compared with
The output end of device；Independently be connected to after the latched device in two of which control output end of pwm signal transmitting-receiving control unit with
Logical not component, the input terminal with logic circuit；First input/output terminal of pwm signal transmitting-receiving control unit, the second input are defeated
Outlet distinguishes grounded resistance R3, and ground resistance R2 is connected to the DC reference ground terminal of CP line dilatation communication modules.
3. a kind of charging system of electric powercar of enhancement information interaction as claimed in claim 2, it is characterised in that：The switching is opened
Close the one of which comprising analog switch, relay.
4. a kind of charging system of electric powercar of enhancement information interaction as claimed in claim 2, it is characterised in that：The main control
Module, pwm signal transmitting-receiving control unit are respectively different independent control or are realized by a shared control unit；The independence
Controller or shared control unit include the one of which in ARM embeded processors, FPGA.
5. a kind of charging system of electric powercar of enhancement information interaction as claimed in claim 2, it is characterised in that：It also include signal
Send driving unit, signal receives pressure regulation unit, driving power, the first transmitting-receiving control switch, the second transmitting-receiving control switch；Its
In, it includes the linear amplifier that amplification factor is more than 1 that signal, which sends driving unit, and it includes amplification factor that signal, which receives pressure regulation unit,
Linear amplification unit less than 1, the feeder ear that signal sends driving unit are connected through the first transmitting-receiving control switch with driving power,
The feeder ear that signal receives pressure regulation unit is connected through the second transmitting-receiving control switch with driving power；Signal sends the defeated of driving unit
Enter, signal receives the output of pressure regulation unit mutually and is connected to the input terminal of hysteresis loop comparator；The output of signal transmission driving unit,
The CP lines that signal receives the input of pressure regulation unit mutually and is connected in Vehicular charging line；First transmitting-receiving control switch, the second transmitting-receiving
The control terminal of control switch is correspondingly connected to the output end of latch.
6. a kind of charging system of electric powercar of enhancement information interaction as claimed in claim 5, it is characterised in that：The signal connects
It includes inverting amplifier to receive pressure regulation unit, and it includes in-phase amplifier and emitter follower that the signal, which sends driving unit,；Wherein
The output of in-phase amplifier is connected with the input of emitter follower；The input terminal of in-phase amplifier is that signal sends driving unit
Input terminal, the output end of emitter follower are the output end that signal sends driving unit；The input terminal of inverting amplifier is signal
The input terminal of pressure regulation unit is received, the output end of inverting amplifier is the output end that signal receives pressure regulation unit.
7. a kind of charging system of electric powercar of enhancement information interaction as claimed in claim 6, it is characterised in that：Amplify in reverse phase
The output end of device and/or in-phase amplifier is further connected with Overvoltage protecting unit.
8. a kind of charging system of electric powercar of enhancement information interaction as described in claim 1, it is characterised in that：The channel radio
Believe that module includes NFC communication unit, 4G communication units, 3G communication units, bluetooth-communication unit, WIFI communication units, 315M/
The one of which of 433M radio frequency communications units.
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| CN201820353830.6U CN207984608U (en) | 2018-03-15 | 2018-03-15 | A kind of charging system of electric powercar of enhancement information interaction |
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| CN201820353830.6U CN207984608U (en) | 2018-03-15 | 2018-03-15 | A kind of charging system of electric powercar of enhancement information interaction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108556650A (en) * | 2018-03-15 | 2018-09-21 | 重庆国翰能源发展有限公司 | A kind of charging system of electric powercar of enhancement information interaction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108556650A (en) * | 2018-03-15 | 2018-09-21 | 重庆国翰能源发展有限公司 | A kind of charging system of electric powercar of enhancement information interaction |
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| GR01 | Patent grant |