WO2016026435A1

WO2016026435A1 - Apparatus for charging electric vehicle, communication apparatus for electric vehicle and electric vehicle

Info

Publication number: WO2016026435A1
Application number: PCT/CN2015/087402
Authority: WO
Inventors: Weiqun WANG; Bingjian HUANG
Original assignee: Byd Company Limited
Priority date: 2014-08-22
Filing date: 2015-08-18
Publication date: 2016-02-25
Also published as: CN204143629U

Abstract

An apparatus (1) for charging an electric vehicle(3), a communication apparatus (2) and an electric vehicle (3) are provided. The apparatus (1) includes: dual charging guns (10), each having a communication wire; a first carrier module (12), connected with a first terminal of each communication wire(101,102); a first control module (13), connected with the first carrier module (12) and the first terminal of the each communication wire(101,102), and configured to control the first carrier module (12) to output an obtaining information signal when obtaining charging connection signals of the dual charging guns (10), in which the first carrier module (12) is configured to obtain a carrier signal, to decode the carrier signal to obtain a decoded carrier signal, and to send the decoded carrier signal to the first control module (13); and a power source(GND) configured to provide power to the first carrier module (12) and the first control module (13).

Description

APPARATUS FOR CHARGING ELECTRIC VEHICLE， COMMUNICATION APPARATUS FOR ELECTRIC VEHICLE AND ELECTRIC VEHICLE

CROSS REFERENCE TO RELATED APPLICATION

This application claims priority and benefits of Chinese Patent No. ZL201420479752.6, filed with State Intellectual Property Office, P.R.C. on August 22, 2014, the entire content of which is incorporated herein by reference.

FIELD

Embodiments of the present disclosure generally relate to a vehicle, and more particularly, to an apparatus for charging an electric vehicle, a communication apparatus for an electric vehicle and an electric vehicle.

BACKGROUND

In terms of charging an electric vehicle, currently there are two types of methods for communicating with the charging signals. One type is that, a free time of a CP signal (i.e., the charging power control signal) is used to send waveforms with same frequency but different duty cycles, and the data type is identified according to the duty cycle. The other type is that, the carrier communication mode is used for data transmission when the electric vehicle is charged by a single charging gun.

However, for the first type of method, it is needed to wait for the free time, such that the time utilization rate is not high, the real-time performance of the data is poor, and it is easy to be interfered by the power lines during charging, and thus the data cannot be identified resulting to a low transport success rate and a low reliability. For the second type of method, in terms of charging a high-power electric vehicle, the charging time is too long, and thus it is difficult to be used in practice.

SUMMARY

Embodiments of the present disclosure seek to solve at least one of the problems existing in the related art to at least some extent.

Embodiments of a first aspect of the present disclosure provide an apparatus for charging an electric vehicle, the apparatus for charging an electric vehicle includes: dual charging guns, each charging gun having a communication wire； a first carrier module, connected with a first terminal of each communication wire respectively； a first control module, connected with the first carrier module and the first terminal of the each communication wire respectively, and configured to control the first carrier module to output an obtaining information signal when obtaining charging connection signals of the dual charging guns, wherein the first carrier module is configured to obtain a carrier signal with a charging information and a battery information, to decode the carrier signal so as to obtain a decoded carrier signal, and to send the decoded carrier signal to the first control module； and a power source, connected with the first carrier module and the first control module respectively, and configured to provide power to the first carrier module and the first control module.

With the apparatus for charging an electric vehicle according to embodiments of the present disclosure, the apparatus can output the obtaining information signal when obtaining charging connection signals of the dual charging guns, the carrier signal with the charging information and the battery information is obtained, the decoded carrier signal is generated according to the carrier signal, and the decoded carrier signal is sent to the first control module, such that when the electric vehicle is charged by using a carrier communication mode, it not needed to use a free time of a CP signal, which can ensure a reliability, stability and real-time performance of a data transmission, and a high efficiency of a charging of the electric vehicle. In addition, based on the dual charging guns, a charging time may be reduced.

Embodiments of a second aspect of the present disclosure provide a communication apparatus for an electric vehicle. The communication apparatus is connected with the above apparatus for charging an electric vehicle via the dual charging guns when the electric vehicle is being charged, and the communication apparatus includes a first controller, connected with a second terminal of the one communication wire, and configured to obtain a first obtaining information signal from the one communication wire, to generate the first carrier signal with a charging information and a battery information according to the first obtaining information signal, and to output the first carrier signal via the one communication wire； and a second controller, connected with a other terminal of the second communication wire, and configured to obtain a second obtaining information signal from the other communication wire, and to generate the second carrier signal with a charging information and a battery information according to the second obtaining information signal, and to output the second carrier signal via the other communication wire.

With the communication apparatus according to embodiments of the present disclosure, the obtaining information signals may be obtained from the communication wires, the carrier signals with the charging information and the battery information may be generated according to the obtaining information signals, and the carrier signals may be outputted via the dual charging guns, such that when the electric vehicle is charged by using the carrier communication mode, it not needed to use the free time of the CP signal, which can ensure the reliability, stability and real-time performance of the data transmission, and the high efficiency of the charging of the electric vehicle. In addition, based on the dual charging guns, a charging time may be reduced.

Embodiments of a third aspect of the present disclosure provide an electric vehicle, the electric vehicle includes the above communication apparatus for an electric vehicle.

With the electric vehicle according to embodiments of the present disclosure, the obtaining information signals may be obtained from the communication wires, the carrier signals with the charging information and the battery information may be generated according to the obtaining information signals, and the carrier signals may be outputted via the dual charging guns, such that when the electric vehicle is charged by using the carrier communication mode, it not needed to use the free time of the CP signal, which can ensure the reliability, stability and real-time performance of the data transmission, and the high efficiency of the charging of the electric vehicle. In addition, based on the dual charging guns, a charging time may be reduced.

Additional aspects and advantages of embodiments of present disclosure will be given in part in the following descriptions, become apparent in part from the following descriptions, or be learned from the practice of the embodiments of the present disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

These and other aspects and advantages of embodiments of the present disclosure will become apparent and more readily appreciated from the following descriptions made with reference to the accompanying drawings, in which:

Fig. 1 is a block diagram of an apparatus for charging an electric vehicle according to an embodiment of the present disclosure；

Fig. 2 is a block diagram of a communication apparatus for an electric vehicle according to a first embodiment of the present disclosure；

Fig. 3 is a block diagram of a communication apparatus for an electric vehicle according to a second embodiment of the present disclosure；

Fig. 4 is a block diagram of an electric vehicle when the electric vehicle is being charged according to a first embodiment of the present disclosure；

Fig. 5 is a block diagram of an electric vehicle when the electric vehicle is being charged according to a second embodiment of the present disclosure；

Fig. 6 is a block diagram of an electric vehicle when the electric vehicle is being charged according to a third embodiment of the present disclosure；

Fig. 7 is a block diagram of an electric vehicle when the electric vehicle is being charged according to a fourth embodiment of the present disclosure；

Fig. 8 is a schematic diagram illustrating a communication time sequence between an apparatus for charging an electric vehicle and a communication apparatus according to an embodiment of the present disclosure；

Fig. 9 is a schematic diagram of a PC monitoring interface according to an embodiment of the present disclosure； and

Fig. 10 is a schematic diagram of a test interface according to an embodiment of the present disclosure.

DETAILED DESCRIPTION

Reference will be made in detail to embodiments of the present disclosure. Embodiments of the present disclosure will be shown in drawings, in which the same or similar elements and the elements having same or similar functions are denoted by like reference numerals throughout the descriptions. The embodiments described herein according to drawings are explanatory and illustrative, not construed to limit the present disclosure.

Various embodiments and examples are provided in the following description to implement different structures of the present disclosure. In order to simplify the present disclosure, certain elements and settings will be described. However, these elements and settings are only by way of example and are not intended to limit the present disclosure. In addition, reference numerals may be repeated in different examples in the present disclosure. This repeating is for the purpose of simplification and clarity and does not refer to relations between different embodiments and/or settings. Furthermore, examples of different processes and materials are provided in the present disclosure. However, it would be appreciated by those skilled in the art that other processes and/or materials may be also applied. Moreover, a structure in which a first feature is “on” a second feature may include an embodiment in which the first feature directly contacts the second feature, and may also include an embodiment in which an additional feature is formed between the first feature and the second feature so that the first feature does not directly contact the second feature.

In the description of the present disclosure, unless specified or limited otherwise, it should be noted that, terms “mounted, ” “connected” and “coupled” may be understood broadly, such as electronic connections or mechanical connections, inner communications between two elements, direct connections or indirect connections through intervening structures , which can be understood by those skilled in the art according to specific situations.

With reference to the following descriptions and drawings, these and other aspects of embodiments of the present disclosure will become apparent. In the descriptions and drawings, some particular embodiments are described in order to show the principles of embodiments according to the present disclosure, however, it should be appreciated that the scope of embodiments according to the present disclosure is not limited herein. On the contrary, changes, alternatives, and modifications can be made in the embodiments without departing from spirit, principles and scope of the attached claims.

In the following, an apparatus for charging an electric vehicle, a communication apparatus for an electric vehicle and an electric vehicle are described in detail with reference to drawings.

Fig. 1 is a block diagram of an apparatus for charging an electric vehicle according to an embodiment of the present disclosure. As shown in Fig. 1, the apparatus 1 for charging an electric vehicle includes dual charging guns 10, a first carrier module 12, a first control module 13, and a power source GND. The dual charging guns 10 have a first communication wire 101 (i.e. CP wire) and a second communication wire 102 (i.e. CP wire) . In other words, each charging gun has one communication wire. The first carrier module 12 is connected with a first terminal of the first communication wire 101 and a first terminal of the second communication wire 102 respectively. The first control module 13 is connected with the first carrier module 12, the first terminal of the first communication wire 101 and the first terminal of the second communication wire 102 respectively, and configured to control the first carrier module 12 to output an obtaining information signal when obtaining charging connection signals of the dual charging guns 10. The first carrier module 12 is configured to obtain a carrier signal with a charging information and a battery information, to decode the carrier signal so as to obtain a decoded carrier signal, and to send the decoded carrier signal to the first control module 13. The power source GND is connected with the first carrier module 12 and the first control module 13 respectively, and configured to provide power to the first carrier module12 and the first control module 13.

With the apparatus for charging an electric vehicle according to embodiments of the present disclosure, the apparatus can output the obtaining information signal when obtaining charging connection signals of the dual charging guns, the carrier signal with the charging information and the battery information is obtained, the decoded carrier signal is generated according to the carrier signal, and the decoded carrier signal is sent to the first control module, such that when the electric vehicle is charged by using a carrier communication mode, it is not needed to use a free time of a CP signal, which can ensure a reliability, stability and real-time performance of a data transmission, and a high efficiency of a charging of the electric vehicle. In addition, based on the dual charging guns, a charging time may be reduced.

In an embodiment, as shown in Fig. 1, the first control module 12 is configured to display a current charging state and the battery information according to the decoded carrier signal.

In an embodiment, as shown in Fig. 1, the first carrier module 12 is further configured to obtain a first carrier signal with a charging information and a battery information and a second carrier signal with a charging information and a battery information, to decode the first carrier signal to obtain a first decoded carrier signal, to decode the second carrier signal to obtain a second decoded carrier signal, and to send the first decoded carrier signal and the second decoded carrier signal to the first control module. The first control module 13 is configured to display a current charging state and the battery information according to the first decoded carrier signal and the second decoded carrier signal.

Fig. 2 is a block diagram of a communication apparatus for an electric vehicle according to a first embodiment of the present disclosure. As shown in Fig. 2, the communication apparatus 2 is connected with the apparatus 1 for charging the electric vehicle via the dual charging guns 10 when the electric vehicle 3 is being charged. The communication apparatus 2 includes a first controller 200 and a second controller 300. The first controller 200 is connected with a second terminal of the first communication wire 101, and is configured to obtain the first obtaining information signal from the first communication wire 101, to generate the first carrier signal with the charging information and the battery information according to the first obtaining information signal, and to output the first carrier signal via the first communication wire 101, that is, the first controller 200 sends the first carrier signal to the first carrier module 12 via the first communication wire 101. The second controller 300 is connected with a second terminal of the second communication wire 102, and is configured to obtain the second obtaining information signal from the second communication wire 102, and to generate the second carrier signal with the charging information and the battery information according to the second obtaining information signal, and to output the second carrier signal via the second communication wire 102, that is, the second controller 300 sends the second carrier signal to the first carrier module 12 via the second communication wire 102.

Fig. 3 is a block diagram of a communication apparatus for an electric vehicle according to a second embodiment of the present disclosure. As shown in Fig. 3, the first controller 200 includes a second control module 201 and a second carrier module 202. The second control module 201 is connected with the second terminal of the first communication wire 101, and configured to obtain the first obtaining information signal from the first communication wire 101. The second carrier module 202 is connected with the second terminal of the first communication wire 101 and connected with the second control module 201 via a serial communication interface SCI4, and is configured to generate the first carrier signal with the charging information and the battery information according to the first obtaining information signal and to output the first carrier signal via the first communication wire 101.

In this embodiment, as shown in Fig. 3, the second controller 300 includes a third control module 301 and a third carrier module 302. The third control module 301 is connected with the second terminal of the second communication wire 102, and is configured to obtain the second obtaining information signal from the second communication wire 102. The third carrier module 302 is connected with the second terminal of the second communication wire 102 and connected with the third control module 301 via a serial communication interface SCI5, and is configured to generate the second carrier signal with the charging information and the battery information according to the second obtaining information signal and to output the second carrier signal via the second communication wire 102.

It should be noted that for purpose of simplification the dual charging guns 10 are not shown in Figs 4-7. Fig. 4 is a block diagram of an electric vehicle when the electric vehicle is being charged according to a first embodiment of the present disclosure. As shown in Fig. 4, the electric vehicle 3 is being charged via the dual charging guns 10, that is, the first controller 200 and the second controller 300 are connected with the dual-charging guns 10, and the first controller 200 or the second controller 300 receives the charging signals of the dual charging guns 10, such as CC signals, CP signals. For example, it is determined whether the dual charging guns 10 are connected with the electric vehicle 3 according to the CC signals, and it is determined the maximum charging power according to the CP signals.

Fig. 5 is a block diagram of an electric vehicle when the electric vehicle is being charged according to a second embodiment of the present disclosure. As shown in Fig. 5, the first controller 200 is connected with the apparatus 1 via the first communication wire 101. When the first controller 200 is connected with the dual charging guns 10, the first controller 200 sends the charging connection signal to the apparatus 1. The first controller 200 includes the second control module 201 and the second carrier module 202, that is, the second control module 201 controls the second carrier module 202 to send one of the charging connection signals of the dual charging guns 10 via the first communication wire 101.

Similarly, the second controller 300 is connected with the apparatus 1 via the second communication wire 102. When the second controller 300 is connected with the dual-charging guns 10, the second controller 300 sends the charging connection signal to the apparatus 1. The second controller 300 includes the third control module 301 and the third carrier module 302, that is, the third control module 301 controls the third carrier module 302 to send another of the charging connection signals of the dual charging guns 10 via the second communication wire 102.

It can be noted that, each of the first controller 200 and the second controller 300 may be an electric motor controller for a dual-drive electric vehicle, each of the first controller 200 and the second controller 300 includes a rectification and inversion module. During a charging, the controller rectifies the AC in the charging gun into the DC so as to charge the battery group of the electric vehicle 3. During a running, the controller reverse the DC of the battery group into the AC for providing power to an electric motor so as to drive the electric vehicle 3.

Specifically, when the dual charging guns 10 are inserted into charging ports of the first controller 200 and the second controller 300 of the electric vehicle 3 respectively, the first controller 200 and the second controller 300 receive the charging signals of the dual charging guns 10 respectively. For example, it is determined whether the dual charging guns 10 are connected with the electric vehicle 3 according to the CC signals, and it is determined the maximum charging power according to the CP signals. And then, one of the charging connection signals and the CP signal are sent to the apparatus 1 via the first communication wire 101, the other of the charging connection signals and the CP signal are sent to the apparatus1 via the second communication wire 102. When receiving the CP signals, the apparatus 1 outputs an allowable charging power according to the state of the battery group of the electric vehicle 3. After the electric vehicle enters a normal charging state, the first carrier module 12 of the apparatus 1 sends the obtaining information signal to the second carrier module 202 of the first controller 200, and the second carrier module 202 decodes the obtaining information signal and sends the decoded obtaining information signal to the second control module 201. After receiving the decoded obtaining information signal, the second control module 201 controls the second carrier module 202 to generate the carrier signal with the charging information and the battery information according to the obtaining information signal of the apparatus 1 and sends the carrier signal to the first carrier module 12 of the apparatus 1 via the first communication wire 101. The first carrier module 12 decodes the carrier signal, and thus the apparatus 1 displays the current charging state and the battery information according to the decoded carrier signal. Similarly, the second carrier module 13 sends the obtaining information signal to the third carrier module 302 of the second controller 300, and the third carrier module 302 decodes the obtaining information signal and sends the decoded obtaining information signal to the third control module 301. After receiving the decoded obtaining information signal, the third control module 301 controls the third carrier module 302 to generate the carrier signal with the charging information and the battery information according to the obtaining information signal of the apparatus 1 and sends the carrier signal to the second carrier module 13 of the apparatus 1 via the second communication wire 102. The second communication wire 102 decodes the carrier signal, and thus the apparatus 1 displays the current charging state and the battery information according to the decoded carrier signal.

As shown in Fig. 5, the first carrier module 12 includes a first carrier unit 121 and a second carrier unit 122. The first carrier unit 121 is connected with the first control module 13 and the first terminal of the first communication wire 101 respectively, and configured to obtain the first carrier signal with the charging information and the battery information, to generate the first decoded carrier signal according the first carrier signal, and to send the first decoded carrier signal to the first control module 13. The second carrier unit 122 is connected with the first control module 13 and the first terminal of the second communication wire 102 respectively, and configured to obtain the second carrier signal with the charging information and the battery information, to generate the second decoded carrier signal according the second carrier signal, and to send the first decoded carrier signal to the first control module 13.

In this embodiment, as shown in Fig. 5, the first carrier unit 121 and the second carrier unit 122 are connected with the first control module 13 via a serial communication interface SCI1, a space distance between the first carrier unit 121 and the second carrier unit 122 is larger than a predetermined value such as 80mm. The first carrier unit 121 is connected with the first controller 200 via the first communication wire 101, the first carrier unit 121 is connected with the first control module 13 via the serial communication interface SCI1, the second carrier unit 122 is connected with the second controller 300 via the second communication wire 102, and the second carrier unit 122 is connected with the first control module 13 via the serial communication interface SCI1.

Specifically, the apparatus 1 includes two carrier boards, that is, the first carrier unit 121 and the second carrier unit 122. Each CP signal uses a single carrier channel so as to form one-to-one communication mode. The first controller 200 or the second controller 300 sends the carrier signal to the corresponding carrier board (i.e., the first carrier module 12) via the first communication wire 101. After the carrier signal is decoded by the first carrier module 12, the decoded carrier signal is sent to the first control module 13 via the serial communication interface SCI1. Because the two carrier boards receive the two signals with same frequency, the two carrier signals can be completely isolated before entering the first control module 13 of the apparatus 1. In an embodiment, a power supply GND for supplying power to the first carrier unit 121 and the second carrier unit 122 may be isolated, and a space distance between the first carrier unit 121 and the second carrier unit 122 may be larger than a predetermined value, such as 80 mm, so as to prevent a spatial crosstalk problem, and thus the carrier communication mode may be realized in the dual-gun charging method.

Fig. 6 is a block diagram of an electric vehicle when the electric vehicle is being charged according to a third embodiment of the present disclosure. As shown in Fig. 6, the first carrier unit 121 is connected with the first control module 13 via a serial communication interface SCI2, and the second carrier unit 122 is connected with the first control module 13 via a serial communication interface SCI3. The first carrier unit 121 is connected with the first controller 200 via the first communication wire 101, the first carrier unit 121 is connected with the first control module 13 via the serial communication interface SCI2, the second carrier unit 122 is connected with the second controller 300 via the second communication wire 102, and the second carrier unit 122 is connected with the first control module 13 via the serial communication interface SCI3.

Specifically, the serial communication interface between the first control module 13 and the carrier units (i.e., the first carrier unit 121 and the second carrier unit 122) is set as a two-way serial communication interface, i.e, the serial communication interface SCI1 and the serial communication interface SCI2, such that a data packet does not be tampered with due to the serial communication interface.

Fig. 7 is a block diagram of an electric vehicle when the electric vehicle is being charged according to a fourth embodiment of the present disclosure. As shown in Fig. 7, the apparatus 1 further includes a first capacitor 103 and a second capacitor 104. The first capacitor 103 has a first terminal connected with the first control module 13 and the first terminal of the first communication wire 101 respectively, and a second terminal connected with the first carrier module 12. The second capacitor 104 has a first terminal connected with the second terminal of the first capacitor 103 and the first carrier module 12 respectively, and a second terminal connected with the first control module 13 and the first terminal of the second communication wire 102 respectively. That is, the first terminal of the first capacitor 103 is connected with the first controller 200 via the first communication wire 101, the second terminal of the first capacitor 103 is connected with the first carrier module 12, the second terminal of the second capacitor 104 is connected with the second controller 300 via the second communication wire 102, the first terminal of the second capacitor 104 is connected with the first carrier module 12. The first capacitor 103 and the second capacitor 104 may isolate the CP signals and the carrier signals.

Specifically, a control board of the apparatus 1 is provided with a carrier board (i.e., the first carrier module 12) , and the control board of the apparatus 1 is communicated with the first controller 200 and the second controller 300 respectively via the first carrier module 12. Each CP signal and each carrier signal in the control board are isolated from each other by the capacitors. A capacitance of the first capacitor 103 and the second capacitor 104 can be obtained according to specific circumstances, for example, the capacitance of the first capacitor 103 and the second capacitor 104 may be 1nF. With the 1nF capacitance, an impedance of a 263KHz carrier signal is 605Ω, but an impedance of a 1KHz CP signal reaches 159KΩ, that is, since an attenuation of the carrier signal caused by the capacitor is small, while the attenuation of the CP signal caused by the capacitor is great, to the capacitors may play the role of isolation, and thus the 1nF capacitor may avoid an interference between the two CP signals. In addition, a cost is lowered by using only one carrier board.

Fig. 8 is a schematic diagram illustrating a communication time sequence between an apparatus for charging an electric vehicle and a communication apparatus according to an embodiment of the present disclosure. In an embodiment, the apparatus 1 and the communication apparatus 2 are communicated by using time sharing multiplex. Specifically, as shown in Fig. 8, the apparatus 1 outputs data once every 1.5 seconds, after receiving the data the first controller 200 responds the data with a delay time of 0.5 seconds and sends the data to the apparatus 1, after receiving the data, the second controller 300 responds the data by a delay time of 1 second and sends the data to the apparatus 1. The data transmission is performed by repeating above process. A time interval of the data transmission between the first controller 200 and the second controller is 0.5 seconds.

Fig. 9 is a schematic diagram of a PC monitoring interface according to an embodiment of the present disclosure. Fig. 10 is a schematic diagram of a test interface according to an embodiment of the present disclosure. For the communication with the time sharing multiplex mode, the PC monitoring interface includes corresponding charging information which is shown in Fig. 9. When the electric vehicle 3 is being charged by the dual charging guns, the test interface is shown in Fig. 10.After the electric vehicle 3 is power-on and the apparatus 1 outputs the PWM (Pulse Width Modulation) signal (i.e., the PC signal) , the apparatus 1 is ready for the carrier communication. As shown in Fig. 10, the first controller 200 and the second controller 300 receive the carrier message for 188 times, and respond for 188 times accordingly. It can be seen that all received data is correct, and the success rate of the communication is 100％.

With the communication apparatus for the electric vehicle according to embodiments of the present disclosure, when the electric vehicle is being charged by the dual charging guns, the data is transmitted by the carrier communication mode, which is completely different from a conventional method by using a free time of the CP signal for data transmission. There is no waste of time, and it is not required to change the waveform of the CP signal, but only the CP signal wire (i.e. the communication wires 101 and 102) are used, which is in full compliance with a charging standard.

Any procedure or method described in the flow charts or described in any other way herein may be understood to comprise one or more modules, portions or parts for storing executable codes that realize particular logic functions or procedures. Moreover, advantageous embodiments of the present disclosure comprises other implementations in which the order of execution is different from that which is depicted or discussed, including executing functions in a substantially simultaneous manner or in an opposite order according to the related functions. This should be understood by those skilled in the art which embodiments of the present disclosure belong to.

The logic and/or step described in other manners herein or shown in the flow chart, for example, a particular sequence table of executable instructions for realizing the logical function, may be specifically achieved in any computer readable medium to be used by the instruction execution system, device or equipment (such as the system based on computers, the system comprising processors or other systems capable of obtaining the instruction from the instruction execution system, device and equipment and executing the instruction) , or to be used in combination with the instruction execution system, device and equipment.

It is understood that each part of the present disclosure may be realized by the hardware, software, firmware or their combination. In the above embodiments, a plurality of steps or methods may be realized by the software or firmware stored in the memory and executed by the appropriate instruction execution system. For example, if it is realized by the hardware, likewise in another embodiment, the steps or methods may be realized by one or a combination of the following techniques known in the art: a discrete logic circuit having a logic gate circuit for realizing a logic function of a data signal, an application-specific integrated circuit having an appropriate combination logic gate circuit, a programmable gate array (PGA) , a field programmable gate array (FPGA) , etc.

Those skilled in the art shall understand that all or parts of the steps in the above exemplifying method of the present disclosure may be achieved by commanding the related hardware with programs. The programs may be stored in a computer readable storage medium, and the programs comprise one or a combination of the steps in the method embodiments of the present disclosure when run on a computer.

In addition, each function cell of the embodiments of the present disclosure may be integrated in a processing module, or these cells may be separate physical existence, or two or more cells are integrated in a processing module. The integrated module may be realized in a form of hardware or in a form of software function modules. When the integrated module is realized in a form of software function module and is sold or used as a standalone product, the integrated module may be stored in a computer readable storage medium.

The storage medium mentioned above may be read-only memories, magnetic disks or CD, etc.

Reference throughout this specification to “an embodiment, ” “some embodiments, ” “one embodiment” , “another example, ” “an example, ” “aspecific example, ” or “some examples, ” means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. Thus, the appearances of the phrases such as “in some embodiments, ” “in one embodiment” , “in an embodiment” , “in another example, ” “in an example, ” “in a specific example, ” or “in some examples, ” in various places throughout this specification are not necessarily referring to the same embodiment or example of the present disclosure. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

Although explanatory embodiments have been shown and described, it would be appreciated by those skilled in the art that the above embodiments cannot be construed to limit the present disclosure, and changes, alternatives, and modifications can be made in the embodiments without departing from spirit, principles and scope of the present disclosure.

Claims

An apparatus for charging an electric vehicle, comprising:

dual charging guns, wherein each charging gun has a communication wire；

a first carrier module, connected with a first terminal of each communication wire respectively；

a first control module, connected with the first carrier module and the first terminal of the each communication wire respectively, and configured to control the first carrier module to output an obtaining information signal when obtaining charging connection signals of the dual charging guns, wherein the first carrier module is configured to obtain a carrier signal with a charging information and a battery information, to decode the carrier signal so as to obtain a decoded carrier signal, and to send the decoded carrier signal to the first control module； and

a power source, connected with the first carrier module and the first control module respectively, and configured to provide power to the first carrier module and the first control module.
The apparatus of claim 1, wherein the first control module is further configured to display a current charging state and the battery information according to the decoded carrier signal.
The apparatus of claim 1 or 2, wherein

the first carrier module is configured to obtain a first carrier signal with a charging information and a battery information and a second carrier signal with a charging information and a battery information, to decode the first carrier signal to obtain a first decoded carrier signal, to decode the second carrier signal to obtain a second decoded carrier signal, and to send the first decoded carrier signal and the second decoded carrier signal to the first control module； and

the first control module is further configured to display a current charging state and the battery information according to the first decoded carrier signal and the second decoded carrier signal.
The apparatus of any one of claims 1-3, wherein the first carrier module comprises:

a first carrier unit connected with the first control module and the first terminal of one communication wire respectively, and configured to obtain a third carrier signal with the charging information and the battery information, to decode the third carrier signal to obtain a third decoded carrier signal, and to send the third decoded carrier signal to the first control module； and

a second carrier unit connected with the first control module and the first terminal of the other communication wire respectively, and configured to obtain a fourth carrier signal with the charging information and the battery information, to decode the fourth carrier signal to obtain a fourth decoded carrier signal, and to send the fourth decoded carrier signal to the first control module.
The apparatus of claim 4, wherein the first carrier unit and the second carrier unit are connected with the first control module via a serial communication interface, and a space distance between the first carrier unit and the second carrier unit is larger than a predetermined value.
The apparatus of claim 4, wherein the first carrier unit is connected with the first control module via a first serial communication interface, and the second carrier unit is connected with the first control module via a second serial communication interface.
The apparatus of any one of claims 1-6, further comprising:

a first capacitor, having a first terminal connected with the first control module and the first terminal of the one communication wire respectively, and a second terminal connected with the first carrier module； and

a second capacitor, having a first terminal connected with the second terminal of the first capacitor and the first carrier module respectively, and a second terminal connected with the first control module and the first terminal of the other communication wire respectively.
A communication apparatus for an electric vehicle, connected with the apparatus for charging an electric vehicle according to any one of claims1-7 via the dual charging guns when the electric vehicle is being charged, and comprising:

a first controller, connected with a second terminal of the one communication wire, and configured to obtain a first obtaining information signal from the one communication wire, to generate the first carrier signal with a charging information and a battery information according to the first obtaining information signal, and to output the first carrier signal via the one communication wire； and

a second controller, connected with a second terminal of the other communication wire, and configured to obtain a second obtaining information signal from the other communication wire, and to generate the second carrier signal with a charging information and a battery information according to the second obtaining information signal, and to output the second carrier signal via the other communication wire.
The communication apparatus of claim 8, wherein the first controller comprises:

a second control module connected with the second terminal of the one communication wire, and configured to obtain the first obtaining information signal from the one communication wire； and

a second carrier module connected with the second terminal of the one communication wire and connected with the second control module via a serial communication interface, and configured to generate the first carrier signal with a charging information and a battery information according to the first obtaining information signal and to output the first carrier signal via the one communication wire.
The communication apparatus of claim 8 or 9, wherein the second controller comprises:

a third control module connected with the second terminal of the other communication wire, and configured to obtain a second obtaining information signal from the second communication wire； and

a third carrier module connected with the second terminal of the other communication wire and connected with the third control module via a serial communication interface, and configured to generate the second carrier signal with a charging information and a battery information according to the second obtaining information signal and to output the second carrier signal via the other communication wire.
An electric vehicle, comprising the communication apparatus for an electric vehicle according to any one of claims 8-10.