CN202906512U - System for communication of alternating current charging device and electric automobile - Google Patents
System for communication of alternating current charging device and electric automobile Download PDFInfo
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- CN202906512U CN202906512U CN 201220497787 CN201220497787U CN202906512U CN 202906512 U CN202906512 U CN 202906512U CN 201220497787 CN201220497787 CN 201220497787 CN 201220497787 U CN201220497787 U CN 201220497787U CN 202906512 U CN202906512 U CN 202906512U
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Abstract
The utility model provides a system for the communication of an alternating current charging device and an electric automobile. The alternating current charging device comprises a power supply interface and an alternating current charging control module connected with each other. The electric automobile comprises a vehicle interface, a vehicle-mounted charger, a battery set, a battery management unit and a vehicle control device. Through connecting two end plugs of a charging cable respectively with a vehicle socket contained by the vehicle interface and a power supply socket contained by the power supply interface, the alternating current charging device and the electric automobile are connected. Both the alternating current charging device and the electric automobile comprise high-speed power line carrier communication modules coupled between connecting terminals CP and PE. The high-speed power line carrier communication modules comprise a high-speed power line carrier communication module A positioned in the alternating current charging device and a high-speed power line carrier communication module B positioned in the electric automobile. The system for the communication of the alternating current charging device and the electric automobile provided by the utility model uses the high-speed power carrier communication mode, and has a high communication rate.
Description
Technical field
The utility model relates to the electric vehicle charging electrical domain, is specifically related to the system that a kind of AC charging device is communicated by letter with electric automobile.
Background technology
Electric automobile is the direction of future automobile industrial development, and the Electric Vehicle's Alternating that matches with the electric automobile high speed development/DC charging facility is the basis of electric automobile energy supply and application.
At present only has one for the standard of communication interface between electric automobile and electrically-charging equipment: " communication protocol between the non-vehicle-mounted conduction-type AC charging device of GB/T 27930-2011 electric automobile and the battery management system ".This standard has adopted the communication mode based on the CAN interface, is only applicable to the situation of DC charging.The mode that can take the CAN interface in the DC charging process is because clearly defined the cable core of CAN interface in this national standard (GB/T 20234.3-2011).
But (GB/T 20234.2-2011) but do not provide the definition of relevant charging inlet telecommunication cable core in the standard of alternating-current charging interface.Therefore, how to realize that in AC charging communicating by letter between electric automobile and the electrically-charging equipment is not clear and definite problem.But, change applying after the electric service network maturation for satisfying electric vehicle charging, the multiple accounting management mode of compatible electrically-charging equipment, and authenticating user identification pattern must be set up the communication port between electric automobile and the AC charging device.
At present, communication means commonly used mainly contains following several:
(1) RS232 communication: this communication means can be realized full-duplex communication, shortcoming is that communication distance is shorter, when AC charging device and electric automobile distance is distant, may affect communication quality, and traffic rate is lower, needs the shielded communication cable of 3 special uses.
(2) RS422 communication: this method can realize long haul communication, and can full-duplex communication.The shortcoming of this method is that traffic rate is lower, needs the holding wire of 4 special uses.
(3) RS485 communication: this method can realize long haul communication, but traffic rate is lower, and can only half-duplex operation, needs the shielded communication cable of 2 special uses.
(4) CAN bus communication: this method can be the highest the traffic rate of realization 500kbps, differential mode is adopted in the signal transmission, can realize than long haul communication.This method major defect is that traffic rate is lower, needs the shielded communication cable of 2 special uses.
(5) ethernet communication: this method can be the highest the traffic rate of realization 100Mbps, can realize than long haul communication.This method major defect is that circuit is complicated, needs the shielded communication cable of 4 special uses.
(6) wireless WIFI communication: the traffic rate that this method can the highest realization 150Mbps need not the stube cable communication main body both sides.This method major defect is that the confidentiality of communication is poor, needs to increase extra communication accessories (communication antenna etc.).
Above communication means is applied in the communicating by letter between electric automobile and the AC charging device, all has certain limitation, and it needs to adopt private mask telecommunication cable mostly, and also there are the problems such as confidentiality is inadequate in wireless mode.Along with the continuous growth of charging electric vehicle demand, be badly in need of improving or proposing new communication means.
Plug-in alliance of family (HomePlug Alliance) has issued a HomePlug GreenPHY(hereinafter to be referred as HPGP in 2010) standard.Itself and existing power line broadband technology HomePlugAV standard and IEEE P1901 standard class seemingly and have completely interoperability with both.The HPGP standard is special exploitation of requirement of intelligent grid being used for satisfying public utility undertaking.Public utility undertaking except significant reliability and coverage, also requires lower power consumption and the cost of reduction to the requirement of power line communication (PLC) technology.The peak value PHY speed that HPGP provides is 10Mbps, and this speed is used for current and intelligent grid in the future enough bandwidth is provided.And HPGP provides lower technical sophistication degree and lower power consumption.
Be illustrated in figure 1 as conventional AC charging device and electric automobile part annexation block diagram, as shown in Figure 1, the AC charging device comprises power supply interface and AC charging control module, electric automobile comprises vehicle interface, Vehicular charger, battery pack and battery management unit and controller of vehicle, AC power supply device is connected power supply interface and is connected with vehicle interface with electric automobile, power supply interface comprises power supply base and supplies plug, vehicle interface comprises vehicle plug and vehicle socket, power supply base, for plug, all comprise 7 splicing ears in vehicle plug and the vehicle socket, respectively L, N, the power terminal of AC charging; PE, the protective earthing terminal; CC, electric automobile is connected confirmation signal with the AC charging device; CP, control line is confirmed in control, has the pwm signal of 1KHz to be used for expression charging current limit value on it; NC1, NC2, contact for subsequent use.When with the two ends plug of charge independence cable respectively with after the supply socket of the vehicle socket of electric automobile and AC charging device is connected, electric automobile and AC charging device respectively the CC line by this side detect charging cable and are connected, and electric automobile can be confirmed the rated current-carrying capacity of charging cable by Rc resistance simultaneously.The AC charging device is after confirming that cable connects, and the S1 switch output pwm signal that closes represents its maximum supply current, and the duty ratio of this pwm signal is 0%-96%, corresponds to 6A-80A.When electric automobile detected this pwm signal and self do not have fault, the S2 switch that closes represented to be ready to receive charging to the AC charging device.After the AC charging device detected this state, namely close K1 and K2 output AC electric energy charged to electric automobile.
The limitation of existing communication method has limited the overall performance that the electric vehicle alternating-current charging device is communicated by letter with controller of vehicle, and the Industry Promotion that has affected the electric vehicle alternating-current charging device is used.Along with the continuous growth of charging electric vehicle demand, be badly in need of improving or proposing new communication means.
The utility model content
The utility model is low for communicate by letter with the controller of vehicle speed of existence of existing AC charging device, poor reliability, need the shortcoming and defect such as private mask telecommunication cable, the system that provides a kind of AC charging device to communicate by letter with electric automobile, described AC charging device comprises interconnective power supply interface and AC charging control module, described electric automobile comprises vehicle interface, Vehicular charger, battery pack and battery management unit and controller of vehicle, described power supply interface comprises power supply base and supplies plug, described vehicle interface comprises vehicle plug and vehicle socket, described AC charging device and electric automobile by with the two ends plug of charging cable respectively with described vehicle socket with connect after power supply base is connected, described AC charging device and electric automobile include the high speed power line carrier communication module that is coupling between described splicing ear CP and the PE, and described high speed power line carrier communication module comprises the high speed power line carrier communication module A that is positioned in the described AC charging device and the high speed power line carrier communication module B that is positioned in the described electric automobile.
In the first preferred embodiment that the utility model provides: described AC charging device comprises AC charging control module, high speed power line carrier communication module A and power supply interface, and described AC charging control module is connected with power supply interface by high speed power line carrier communication module A;
Described AC charging device AC charging control module is connected by Ethernet with described high speed power line carrier communication module A.
In the second preferred embodiment that the utility model provides: described electric automobile comprises car vehicle interface, Vehicular charger, high speed power line carrier communication module B, controller of vehicle and battery pack and battery management unit;
Described controller of vehicle is communicated by letter with described battery pack and battery management unit by the CAN bus; Described controller of vehicle is connected by Ethernet with described high speed power line carrier communication module B;
Described controller of vehicle links to each other with described Vehicular charger by the CAN bus.
In the 3rd preferred embodiment that the utility model provides: described high speed power line carrier communication module A and high speed power line carrier communication module B are coupled by coupling circuit A and coupling circuit B respectively;
Described coupling circuit adopts transformer coupled mode, and the input and output of described high speed power line carrier communication module are respectively by being coupled by signal coupling transformer behind input tape bandpass filter and the output band pass filter;
Signal of communication after the described coupling is connected with PE with CP by coupling capacitance respectively, is connected with the two-way TVS pipe of guard signal circuit between described CP and the PE.
In the 4th preferred embodiment that the utility model provides: the pwm signal voltage between described CP and PE is 24V to the maximum, and it is 36V that described TVS pipe is selected rated voltage;
The capacitance of described coupling capacitance is 53pF;
The model of described signal coupling transformer is 5024-X096;
The passband of described input tape bandpass filter and output band pass filter is 2MHz-28MHz.
In the 5th preferred embodiment that the utility model provides: described high-speed power carrier communication module comprises analog front circuit, Homeplug chip, physical chip and the RJ45 interface that connects successively;
Described Homeplug chip configuration the space of a slice SDRAM as program operation and store data;
Described coupling circuit is connected with described analog front circuit, and described RJ45 interface is connected with described AC charging device AC charging control module or controller of vehicle;
With described Homeplug chip interface, described Homeplug chip was connected with described controller of vehicle or AC charging device AC charging control module by described RJ45 interface employing Ethernet after the signal of coming from coupling circuit was processed through described analog front circuit.
In the 6th preferred embodiment that the utility model provides: described analog front circuit adopts the INT1400 chip;
Described Homeplug chip adopts the INT6400 chip, described INT6400 chip adopts the OFDM modulating mode, support 1024/256/64/16/8-QAM, QPSK, BPSK and ROBO more modulation pattern, traffic rate reaches 200Mbps, and INT6400 is 32 risc processors of ARM926EJ-S simultaneously, has disposed the space of a slice SDRAM as program operation and store data;
Described physical chip adopts the RTL8201 chip.
The beneficial effect of the system that a kind of AC charging device that the utility model provides is communicated by letter with electric automobile comprises:
1. the system that communicates by letter with electric automobile of a kind of AC charging device of providing of the utility model, AC charging device and electric automobile include the high speed power line carrier communication module, adopt the high-speed power carrier communication mode, and traffic rate is high.
2. signal of communication can be coupled on other signals or the power line and transmit, not need extra telecommunication cable;
3. signal coupling circuit adopts the TVS protection of pipe, by electric capacity and transformer coupled carrier signal, and has disposed band pass filter, has guaranteed reliability, the fail safe of communication.
Description of drawings
Fig. 1 is conventional AC charging device and electric automobile part annexation block diagram;
AC charging device and electric automobile part annexation block diagram that Fig. 2 provides for the utility model;
The AC charging principle of device block diagram that Fig. 3 provides for the utility model;
The theory diagram of the live part of the electric automobile that Fig. 4 provides for the utility model;
The circuit theory diagrams of the coupling circuit that Fig. 5 provides for the utility model;
The inside theory diagram of the high-speed power carrier communication module that Fig. 6 provides for the utility model and the structural representation that links to each other with the outside thereof.
Embodiment
The system that a kind of AC charging device that the utility model provides is communicated by letter with electric automobile, AC charging device and electric automobile part annexation block diagram are as shown in Figure 2, as shown in Figure 2, AC charging device and electric automobile include the high speed power line carrier communication module, this high speed power line carrier communication module comprises the high speed power line carrier communication module A that is positioned in the AC charging device and the high speed power line carrier communication module B that is positioned in the electric automobile, the AC charging device is connected with electric automobile and relates to 5 terminals, respectively L, N, the power terminal of AC charging; PE is the protective earthing terminal; CC is that electric automobile is connected confirmation signal with the AC charging device; CP confirms control line for control, has the pwm signal of 1KHz to be used for expression charging current limit value on it.The high speed power line carrier communication module is coupling between CP and the PE.When with the two ends plug of charge independence cable respectively with after the power supply base of the vehicle socket of electric automobile and AC charging device is connected, electric automobile and AC charging device respectively the CC line by this side detect charging cable and are connected, and electric automobile can be confirmed the rated current-carrying capacity of charging cable by Rc resistance simultaneously.The AC charging device is after confirming that cable connects, and the S1 that closes a switch exports specific pwm signal and represents to carry out connection between the high speed power line carrier communication module, and the duty ratio of this specific pwm signal is 5%.Electric automobile detects the link that namely starts behind this pwm signal between carrier communication module, and after link was set up, the TCP that sets up thereon based on IPv6 connected.By this connection, between AC charging device and electric automobile just both sides separately different demand hold consultation, these both sides separately different demand comprise that electricity rate table, the load control strategy of mains side, the charge power demand of electric automobile, the charging interval of day part require etc., after making the chargometer tracing that must observe separately of a mutual concession, namely close K1 and K2 output AC electric energy of AC charging device charges to electric automobile.The overall process of charging is namely controlled according to this chargometer tracing.
Simultaneously, if during the failure of the link between the high speed power line carrier communication module, can continue in a conventional manner charging according to the method shown in Fig. 1, the AC charging device detects electric automobile prepared to receive the state of charging after, electric automobile is charged by described splicing ear L and N with the charge-current limit shown in the pwm signal, the duty ratio of this pwm signal is 10%-96%.
Be illustrated in figure 3 as the AC charging principle of device block diagram that the utility model provides, as shown in Figure 3, the AC charging device comprises AC charging control module, high speed power line carrier communication module A and power supply interface, and the AC charging control module is connected with power supply interface by high speed power line carrier communication module A.Wherein the AC charging control module is connected by Ethernet with high speed power line carrier communication module A, its major function is, be connected with electric automobile vehicle control device by high speed power line carrier communication module A, obtain the control parameter of charging electric vehicle, with the Algorithm Analysis of control parameter through specialty, form the Current Control curve of this charging, and be handed down to controller of vehicle on the electric automobile, the control of charging accordingly by high speed power line carrier communication module A.
Be illustrated in figure 4 as the theory diagram of the live part of the electric automobile that the utility model provides, as shown in Figure 4, the live part of electric automobile comprises vehicle interface, Vehicular charger, high speed power line carrier communication module B, controller of vehicle and battery pack and battery management unit.Controller of vehicle is communicated by letter with battery pack and battery management unit by the CAN bus, obtains the state of battery pack and battery, calculates the control parameter of controlled AC charging device through special-purpose algorithm.Controller of vehicle is connected by Ethernet with high speed power line carrier communication module B, and the real-time parameter that will charge sends to high speed power line carrier communication module B, and is delivered to the AC charging device through high speed power line carrier communication module B; Obtain the Current Control curve that the AC charging device issues by high speed power line carrier communication module B simultaneously.Controller of vehicle links to each other with Vehicular charger by the CAN bus, according to the state of Current Control curve, Vehicular charger and battery pack and battery, Vehicular charger is carried out the parameter setting, controls its output voltage and electric current.
High speed power line carrier communication module A and high speed power line carrier communication module B are coupled by coupling circuit A and coupling circuit B respectively; the circuit theory diagrams of coupling circuit as shown in Figure 5; the input and output of high speed power line carrier communication module are respectively by being coupled to CP by signal coupling transformer T1 or T2 behind Tx Band pass and the Rx Band pass; on the PE; be connected with TR1 or TR2 between CP and the PE; TR1 and TR2 are the two-way TVS pipe of guard signal circuit; because the pwm signal voltage between CP and PE is 24V to the maximum, thus this TVS pipe can to select rated voltage be the two-way TVS pipe of 36V.Signal of communication after the coupling is connected with PE with CP by Cplc respectively, and Cplc is coupling capacitance, gets 53pF.Signal coupling transformer T1 and T2 can select the models such as 5024-X096.Tx Band pass and Rx Band pass are the input/output signal filter, and passband is 2MHz-28MHz.
Be illustrated in figure 6 as the inside theory diagram of high-speed power carrier communication module and the structural representation that links to each other with the outside thereof, as shown in Figure 6, this high-speed power carrier communication module comprises analog front circuit, Homeplug chip, physical chip and the RJ45 interface that connects successively; The Homeplug chip configuration space of a slice SDRAM as program operation and store data; Coupling circuit is connected with analog front circuit, and the RJ45 interface is connected with AC charging device AC charging control module or controller of vehicle;
With the Homeplug chip interface, the Homeplug chip adopted Ethernet and states controller of vehicle or AC charging device AC charging control module is connected by the RJ45 interface after the signal of coming from coupling circuit was processed through analog front circuit.
Analog front circuit adopts the INT1400 chip; The Homeplug chip adopts the INT6400 chip, the INT6400 chip adopts OFDM(Orthogonal Frequency Division Multiplexing, orthogonal frequency division multiplexi) modulating mode, support 1024/256/64/16/8-QAM, QPSK, the more modulation such as BPSK and ROBO pattern communication speed can reach 200Mbps, and INT6400 is 32 risc processors of ARM926EJ-S simultaneously, has disposed the space of a slice SDRAM as program operation and store data; Physical chip adopts RTL8201.
Although more than with reference to the accompanying drawings embodiment of the present utility model is had been described in detail; but be not limited only to this embodiment; those skilled in the art is according to this concrete technical scheme variously being equal to of carrying out, deformation process, also within protection range of the present utility model.
Claims (7)
1. system that the AC charging device is communicated by letter with electric automobile, described AC charging device comprises interconnective power supply interface and AC charging control module, described electric automobile comprises vehicle interface, Vehicular charger, battery pack and battery management unit and controller of vehicle, described power supply interface comprises power supply base and supplies plug, described vehicle interface comprises vehicle plug and vehicle socket, described AC charging device and electric automobile by with the two ends plug of charging cable respectively with described vehicle socket with connect after power supply base is connected, it is characterized in that
Described AC charging device and electric automobile include the high speed power line carrier communication module that is coupling between described splicing ear CP and the PE, and described high speed power line carrier communication module comprises the high speed power line carrier communication module A that is positioned in the described AC charging device and the high speed power line carrier communication module B that is positioned in the described electric automobile.
2. the system as claimed in claim 1, it is characterized in that, described AC charging device comprises AC charging control module, high speed power line carrier communication module A and power supply interface, and described AC charging control module is connected with power supply interface by high speed power line carrier communication module A;
Described AC charging control module is connected by Ethernet with described high speed power line carrier communication module A.
3. the system as claimed in claim 1 is characterized in that, described electric automobile comprises car vehicle interface, Vehicular charger, high speed power line carrier communication module B, controller of vehicle and battery pack and battery management unit;
Described controller of vehicle is communicated by letter with described battery pack and battery management unit by the CAN bus; Described controller of vehicle is connected by Ethernet with described high speed power line carrier communication module B;
Described controller of vehicle links to each other with described Vehicular charger by the CAN bus.
4. the system as claimed in claim 1 is characterized in that,
Described high speed power line carrier communication module A and high speed power line carrier communication module B are coupled by coupling circuit A and coupling circuit B respectively;
Described coupling circuit adopts transformer coupled mode, and the input and output of described high speed power line carrier communication module are respectively by being coupled by signal coupling transformer behind input tape bandpass filter and the output band pass filter;
Signal of communication after the described coupling is connected with PE with CP by coupling capacitance respectively, is connected with the two-way TVS pipe of guard signal circuit between described CP and the PE.
5. system as claimed in claim 4 is characterized in that, the pwm signal voltage between described CP and PE is 24V to the maximum, and it is 36V that described TVS pipe is selected rated voltage;
The capacitance of described coupling capacitance is 53pF;
The model of described signal coupling transformer is 5024-X096;
The passband of described input tape bandpass filter and output band pass filter is 2MHz-28MHz.
6. the system as claimed in claim 1 is characterized in that, described high-speed power carrier communication module comprises analog front circuit, Homeplug chip, physical chip and the RJ45 interface that connects successively;
Described Homeplug chip configuration the space of a slice SDRAM as program operation and store data;
Described coupling circuit is connected with described analog front circuit, and described RJ45 interface is connected with described AC charging device AC charging control module or controller of vehicle;
With described Homeplug chip interface, described Homeplug chip was connected with described controller of vehicle or AC charging device AC charging control module by described RJ45 interface employing Ethernet after the signal of coming from coupling circuit was processed through described analog front circuit.
7. system as claimed in claim 6 is characterized in that,
Described analog front circuit adopts the INT1400 chip;
Described Homeplug chip adopts the INT6400 chip, described INT6400 chip adopts the OFDM modulating mode, support 1024/256/64/16/8-QAM, QPSK, BPSK and ROBO more modulation pattern, traffic rate reaches 200Mbps, and INT6400 is 32 risc processors of ARM926EJ-S simultaneously, has disposed the space of a slice SDRAM as program operation and store data;
Described physical chip adopts the RTL8201 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220497787 CN202906512U (en) | 2012-09-26 | 2012-09-26 | System for communication of alternating current charging device and electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220497787 CN202906512U (en) | 2012-09-26 | 2012-09-26 | System for communication of alternating current charging device and electric automobile |
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| CN202906512U true CN202906512U (en) | 2013-04-24 |
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| CN 201220497787 Expired - Lifetime CN202906512U (en) | 2012-09-26 | 2012-09-26 | System for communication of alternating current charging device and electric automobile |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103587484A (en) * | 2013-11-29 | 2014-02-19 | 重庆长安汽车股份有限公司 | Electric vehicle charging connection device |
| CN105049087A (en) * | 2015-08-31 | 2015-11-11 | 上海泓语电气技术有限公司 | Power carrier system based on non-interconnected direct current lines |
| CN105676033A (en) * | 2016-02-19 | 2016-06-15 | 北京群菱能源科技有限公司 | AC charging interface circuit simulator |
| CN106680653A (en) * | 2016-12-09 | 2017-05-17 | 国网北京市电力公司 | Power supply plug for power supply device and power supply device |
| CN108437824A (en) * | 2018-03-21 | 2018-08-24 | 成都雅骏汽车制造有限公司 | Electric vehicle alternating-current charging communication device based on pwm signal and method |
| CN113454946A (en) * | 2019-02-28 | 2021-09-28 | Abb瑞士股份有限公司 | Ethernet over a basic interface between an electric vehicle supply device and an electric vehicle |
-
2012
- 2012-09-26 CN CN 201220497787 patent/CN202906512U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103587484A (en) * | 2013-11-29 | 2014-02-19 | 重庆长安汽车股份有限公司 | Electric vehicle charging connection device |
| CN103587484B (en) * | 2013-11-29 | 2015-10-07 | 重庆长安汽车股份有限公司 | A kind of electrical vehicle charging connection device |
| CN105049087A (en) * | 2015-08-31 | 2015-11-11 | 上海泓语电气技术有限公司 | Power carrier system based on non-interconnected direct current lines |
| CN105676033A (en) * | 2016-02-19 | 2016-06-15 | 北京群菱能源科技有限公司 | AC charging interface circuit simulator |
| CN105676033B (en) * | 2016-02-19 | 2018-06-19 | 北京群菱能源科技有限公司 | alternating-current charging interface circuit simulator |
| CN106680653A (en) * | 2016-12-09 | 2017-05-17 | 国网北京市电力公司 | Power supply plug for power supply device and power supply device |
| CN108437824A (en) * | 2018-03-21 | 2018-08-24 | 成都雅骏汽车制造有限公司 | Electric vehicle alternating-current charging communication device based on pwm signal and method |
| CN108437824B (en) * | 2018-03-21 | 2020-01-07 | 成都雅骏汽车制造有限公司 | Electric automobile alternating current charging communication device and method based on PWM signals |
| CN113454946A (en) * | 2019-02-28 | 2021-09-28 | Abb瑞士股份有限公司 | Ethernet over a basic interface between an electric vehicle supply device and an electric vehicle |
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Granted publication date: 20130424 |