KR101754883B1 - Control device for charging cable of electric vehicle and providing method for diagnosis information using the same - Google Patents

Abstract

The present invention relates to a charging control device for a charging cable for an electric vehicle and a diagnostic information providing method using the same. More particularly, the present invention relates to a charging control device for a charging cable for an electric vehicle, To a charging control device for a charging cable for an electric vehicle and to a diagnostic information providing method using the same.
The present invention also relates to a control apparatus for a vehicle, comprising: a diagnostic unit for diagnosing an abnormal state of an electric power source, a power supply unit, a cable connection circuit unit and an electric vehicle at the time of charging the electric vehicle; And a diagnostic information transmitting unit for transmitting the diagnostic information to a predetermined external terminal in real time, so that the user can transmit diagnostic information on an abnormal condition in real time.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a charging control device for a charging cable for an electric vehicle, and a diagnostic information providing method using the charging control device.

The present invention relates to a charging control device for a charging cable for an electric vehicle and a diagnostic information providing method using the same. More particularly, the present invention relates to a charging control device for a charging cable for an electric vehicle, To a charging control device for a charging cable for an electric vehicle and to a diagnostic information providing method using the same.

2. Description of the Related Art Generally, an electric vehicle is provided with an On Board Charger (OBC) for converting a commercial power source supplied from the outside into a DC power source, so that a high voltage battery of the electric vehicle can be charged by receiving commercial power.

A commercial power source for charging an electric vehicle can be supplied from a charging facility or a domestic power source, and a charging cable is used for charging equipment or for connection between a domestic power source and an electric vehicle.

Particularly, when a domestic power source is to be supplied to an electric vehicle, a charging control device for performing control and safety functions for charging the electric vehicle, for example, a charging cable provided with an ICCB (In-Cable Control Box) is used.

The conventional charge control device performs a function of supplying or shutting off the commercial power according to the charge information transmitted from the on-board type charging device of the electric vehicle, detecting the leakage current, stopping the power supply and stopping charging have.

On the other hand, the conventional charge control device is provided to display whether the charging is proceeding or not by turning on or off the LED, so that there is a problem that the information displayed to the user is extremely limited. That is, when the charging of the electric vehicle is stopped, it is very difficult for the user to grasp the reason for stopping charging.

Further, most of the electric vehicles must perform the charging for a long time, so that the user is frequently absent. In the conventional charging control device, if the user is absent, the charging stop can not be confirmed.

Accordingly, it is inconvenient for the user to check whether the electric vehicle is being charged in a steady state while waiting until the charging of the electric vehicle is completed, and there is a problem that the charging time is excessively increased due to the charging stop when the user is absent .

SUMMARY OF THE INVENTION The present invention has been conceived in view of the above-described problems, and it is an object of the present invention to provide a charging control method for an electric vehicle charging cable capable of transmitting or providing diagnostic information on an abnormal state to a user in real- And a method of providing diagnostic information using the apparatus.

It is another object of the present invention to provide a charge control device for a charge cable for an electric vehicle and a diagnostic information providing method using the charge control device, which can confirm diagnosis information on an abnormal state even when a user is absent.

The present invention also provides a charge control apparatus for a charge cable for an electric vehicle capable of diagnosing various abnormal conditions that may occur when charging an electric vehicle and providing diagnostic information on each abnormal state to a user and a method for providing diagnosis information using the charge control apparatus The purpose is to provide.

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a power supply apparatus including: a cable connection circuit unit having an input side cable connected to a power supply unit, an output side cable connected to an electric vehicle, and a relay for supplying or disconnecting a commercial power input from a power supply unit; A diagnostic unit for diagnosing an abnormal state of the commercial power supply, the power supply unit, the cable connection circuit unit, and the electric vehicle when the electric vehicle is charged; A control unit for generating information on an abnormal condition diagnosed by the diagnosis unit as diagnosis information and controlling the relay of the cable connection circuit unit; And a diagnostic information transmitting unit for transmitting the diagnostic information to a predetermined external terminal in real time.

In a preferred embodiment, the controller generates the diagnostic information by determining whether the abnormal condition diagnosed by the diagnosis unit is a charge stop or warning condition, and when the abnormal state of the charge stop condition occurs, the supply of the commercial power is cut off .

In a preferred embodiment, the diagnosis unit is configured to diagnose the abnormality of the electric vehicle itself and the abnormal condition of the CP signal and the PWM signal transmitted from the electric vehicle, the occurrence of overvoltage, overcurrent and leakage current, the malfunction of the cable connection circuit, Diagnose the abnormal condition.

In a preferred embodiment of the present invention, when the over-voltage, the over-current, the leakage current, the malfunction of the cable connection circuit, the faulty connection of each cable, the abnormal state of the CP signal and the PWM signal, It is determined that the charging stop condition is satisfied.

In a preferred embodiment, the diagnosis unit diagnoses whether voltage drop and deterioration of the power supply unit occur, and the controller determines that the voltage drop and deterioration are warning conditions when diagnosed.

In a preferred embodiment, a setting information input unit inputs setting information including diagnosis information for diagnosing an abnormal condition of the diagnosis unit and communication information for transmission of the diagnosis information. And a storage unit for storing the diagnostic information and the setting information.

In a preferred embodiment, the setting information input unit includes a USB.

In a preferred embodiment, the diagnostic information transmitting unit transmits the diagnostic information using a communication method of a home network, a PLC communication, a CP signal, a wireless communication, and the Internet.

In a preferred embodiment, the display unit further includes a display unit for displaying the diagnostic information in real time.

(1) connecting a power supply unit to an electric vehicle, and turning on a relay of the cable connection circuit unit to supply commercial power to the electric vehicle; (2) diagnosing whether or not an abnormal state has occurred in the commercial power source, the power supply unit, the cable connection circuit unit, and the electric vehicle; (3) generating diagnosis information by determining whether the abnormal state is a charging stop or warning condition, and controlling the relay of the cable connection circuitry to interrupt the supply of commercial power when an abnormal state of the charging stop condition occurs; And (4) transmitting or storing the diagnostic information to a predetermined external terminal in real time.

In a preferred embodiment, the step (2) includes the steps of: generating overvoltage, overcurrent, and leakage current; malfunctioning of the cable connection circuit; failure of connection of each cable; abnormal state of the CP signal and PWM signal transmitted from the electric vehicle; Thereby diagnosing an abnormal state of the electric vehicle itself.

In a preferred embodiment, the step (3) includes the steps of: detecting overvoltage, overcurrent, leakage current, malfunction of the cable connection circuit part, failure of connection of each cable, abnormal state of the CP signal and PWM signal, If diagnosed, it is determined that the condition is a charge stop condition.

In a preferred embodiment, the step (2) further diagnoses whether voltage drop and deterioration of the power supply unit occur, and the step (3) determines that the voltage drop and deterioration are warning conditions when diagnosed.

In a preferred embodiment, the method further includes: (A) inputting and storing setting information including setting information for diagnosing an abnormal state and communication information for transmitting the diagnostic information.

In a preferred embodiment, the step (4) transmits the diagnosis information using a communication method of any one of a home network, a PLC communication, a CP signal, a wireless communication, and the Internet.

In a preferred embodiment, the step (4) displays the diagnostic information in real time.

According to the above-mentioned problem solving means, the present invention is characterized by comprising a diagnosis unit for diagnosing an abnormal state of the commercial power supply, the power supply unit, the cable connection circuit unit and the electric vehicle at the time of charging the electric vehicle, And a diagnostic information transmitting unit for transmitting the diagnostic information to a predetermined external terminal in real time. Therefore, diagnostic information on an abnormal condition can be transmitted to the user in real time.

That is, the present invention transmits diagnostic information in real time so that the user can check the information through the external terminal, so that even when the user is absent, the user can immediately check whether an abnormal condition has occurred.

Further, the present invention can diagnose an abnormal condition of an internal part including the cable connection circuit part and the electric vehicle itself and notify it to a user as well as an abnormal state of a commercial power supply supplied from the outside, Clearly understand the reason for the suspension, and make it possible to deal with it.

1 is a view for explaining a charge control apparatus according to an embodiment of the present invention;
2 is a diagram for explaining a usage environment of a charge control apparatus using a home network;
3 is a diagram for explaining a use environment of a charge control apparatus using vehicle communication;
4 is a diagram for explaining a usage environment of a charge control apparatus using wireless communication;
5 is a view for explaining a diagnostic information providing method according to an embodiment of the present invention;

It should be understood that the specific details of the invention are set forth in the following description to provide a more thorough understanding of the present invention and that the present invention may be readily practiced without these specific details, It will be clear to those who have knowledge.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to FIGS. 1 to 5, and a description will be given centering on parts necessary for understanding the operation and operation according to the present invention.

FIG. 1 is a view for explaining a charge control apparatus according to an embodiment of the present invention. FIG. 2 is a view for explaining a use environment of a charge control apparatus using a home network. FIG. 4 is a diagram for explaining a usage environment of a charge control apparatus using wireless communication. FIG.

1 to 4, a charge control apparatus 100 according to an embodiment of the present invention includes a cable connection circuit unit 110, a diagnosis unit 120, a control unit 130, a diagnostic information transmission unit 140, A setting information input unit 150, a storage unit 160, and a display unit 170.

Herein, the charge control apparatus 100 according to an embodiment of the present invention is a charge control apparatus 100 for charging an electric vehicle used for connecting a power supply unit 10 for supplying a commercial power supply and an electric vehicle 20 for receiving a commercial power supply Cable in-cable control box (ICCB). On the other hand, the power supply unit 10 refers to a charging facility or a household power source.

The charging cable for an electric vehicle may also include an input side cable connected to the power supply unit 10 and an output side cable connected to the electric vehicle 20. [ Preferably, the input side cable includes a power line for transmission of a commercial power source and a GND line for grounding, and the output side cable includes a power line for transmission of commercial power, a CP line for transmitting / receiving a CP signal to / from the electric vehicle 20, A PD line for sensing the connection state of the vehicle 20, and a GND line for grounding.

The input side cable may be provided with a plug to be connected to a socket or an outlet of the power supply unit 10 and a cable to the output side cable may be connected to an inlet of the electric vehicle 20.

When the commercial power is supplied to the inlet of the electric vehicle 20 through the charging cable for the electric vehicle 20, the commercial power is inputted to the onboard charger (OBC) provided in the electric vehicle, To the DC power supply for charging the battery.

The cable connection circuit unit 110 is connected to the input side cable and the output side cable. The input side cable is connected to the input end of the power supply unit 10, And the output side cable may be connected to the output terminal to output commercial power to the on-board type charging device of the electric vehicle 20. [

Also, the cable connection circuit unit 110 performs a function of supplying or cutting off the commercial power while the relay is turned on or off under the control of the control unit 130, which will be described later.

The cable connection circuit unit 110 may further include a voltage sensor, a current sensor, and a ZCT (Zero Current Transformer) for detecting a leakage current. In the case of the above-described current sensor, a current sensor (CT) can be provided.

The diagnostic unit 120 is for diagnosing various abnormal conditions that occur when the electric vehicle 20 is charged and more particularly to a diagnosis unit 120 for diagnosing various abnormal conditions that occur when the electric vehicle 20 is charged by inputting electric power from the power supply unit 10, An abnormal state of the power supply unit 10, an abnormal state of the cable connection circuit unit 110 itself, and an abnormal state occurring in the electric vehicle 20 are diagnosed.

Preferably, the diagnosis unit 120 can detect whether or not overvoltage, overcurrent, and leakage current are generated. At this time, the diagnosis unit 120 detects an input voltage using a voltage sensor, and diagnoses that an overvoltage occurs when the input voltage is higher or lower than a reference voltage in a predetermined range.

The diagnosis unit 120 detects an input current or an output current by using a current sensor or CT, and diagnoses that an overcurrent occurs when the current is higher than the limiting current or when the current is not measured. In addition, the diagnosis unit 120 may be provided to diagnose whether leakage current is generated using ZCT.

If the relay of the cable connection circuit unit 110 malfunctions or a normal operation corresponding to a control signal of the controller 130 is not performed, the diagnosis unit 120 may detect that the cable connection circuit unit 110 itself It is possible to diagnose that an abnormal state of the abnormality has occurred.

When the CP signal or the PWM signal transmitted from the on-board type charging device of the electric vehicle 20 is a signal out of a predetermined normal range, the diagnosis unit 120 may detect an abnormal state of the signal transmitted from the electric vehicle 20 Can be diagnosed as having occurred. On the other hand, when the diagnosis unit 120 receives the CP signal within the predetermined vehicle abnormality signal range, the diagnosis unit 120 diagnoses that the electric vehicle 20 is in an abnormal state.

The diagnosis unit 120 may monitor the PD line and the GND line to diagnose whether the connector connected to the inlet of the electric vehicle 20 is in a normal connection state or in an abnormal state .

The diagnosis unit 120 may monitor the input voltage inputted to the input terminal of the cable connection circuit unit 110 to diagnose whether an abnormal state due to a voltage drop occurs in the power supply unit 10, In the case where the plug of the input side cable is provided with a temperature sensor, the temperature value may be detected to diagnose whether or not the socket of the power supply unit 10 or the plug of the input side cable generates an abnormal state due to heat generation.

That is, the diagnosis unit 120 diagnoses the abnormal state of the commercial power supply, and also diagnoses an abnormal state of the power supply unit 10 that supplies commercial power, an abnormal state of the cable connection circuit unit 110 itself, 20 can be diagnosed.

The control unit 130 controls the cable connection circuit unit 110 and controls a relay of the cable connection circuit unit 110 according to an abnormal state diagnosed by the diagnosis unit 120, And stops the charging of the electric vehicle 20. The control unit 130 may perform overall control of various functions performed in the charge control apparatus 100.

In addition, the controller 130 may be configured to generate information on an anomaly diagnosed by the diagnosis unit 120 as diagnostic information. At this time, the diagnostic information may be transmitted to the external terminal 30 by the diagnostic information transmitting unit 140 to be described later, stored in the storage unit 160 to be described later, or displayed on the display unit 170 to be described later.

When generating the diagnosis information, the control unit 130 determines whether the abnormal state diagnosed by the diagnosis unit 120 corresponds to a predetermined charging stop condition or warning condition. If the abnormal state corresponding to the charging stop condition is detected And controls the cable connection circuit unit 110 to cut off the power supply if it occurs.

The control unit 130 may be a charge stop condition when the abnormal state of the commercial power source is diagnosed or the abnormal state of the cable connection circuit unit 110 itself is diagnosed or the abnormal state of the electric vehicle 20 is diagnosed. The charging of the electric vehicle 20 can be stopped. Also, the controller 130 determines that the condition is a warning condition when the abnormal state of the power supply unit 10 that supplies the commercial power is diagnosed.

That is, the controller 130 not only functions to stop charging the electric vehicle 20 when the diagnosis unit 120 diagnoses an abnormal state, but also generates diagnostic information for each abnormal state and transmits Stored or displayed so that the user can more accurately grasp the reason for stopping charging and can perform appropriate countermeasures.

The control unit 130 and the diagnosis unit 120 may be implemented in hardware, but may be implemented in software that is installed in an MCU (Micro Controller Unit) and performs control and diagnostic functions, respectively .

The diagnostic information transmitting unit 140 is for transmitting the diagnostic information to the external terminal 30. Under the control of the controller 130, the diagnostic information transmitting unit 140 transmits the diagnostic information in real time, .

At this time, the external terminal 30 can be set as a predetermined terminal through a setting information input unit 150 to be described later, and can be used not only in a general-purpose communication terminal including a smart phone and a personal computer, It is to be understood as a comprehensive concept including a communicable electrical device mounted on the vehicle.

The diagnostic information transmitting unit 140 may transmit the diagnostic information using any one of a home network, a PLC communication, a CP signal, a wireless communication, and the Internet. In addition, The information can be set using a setting information input unit 150 to be described later.

1 and 2, when the diagnostic information transmitting unit 140 transmits (1) diagnostic information about an abnormal state that occurred during charging of the electric vehicle 20 using a home network or the Internet, The diagnosis unit 120 diagnoses whether or not an abnormal state has occurred when the commercial power is supplied from the power supply unit 10 and (2) (3) The diagnosis information transmitting unit 140 transmits the diagnosis information to the external terminal 30 of the power supply unit 10, that is, And transmits the diagnosis information to the external terminal 30 in the home.

At this time, the diagnosis information may be displayed in the home terminal 30 or the diagnosis information may be transmitted to the user smart phone by the home terminal 30. That is, the user can receive diagnostic information about an abnormal state that occurred at the time of charging the electric vehicle 20 in real time. Meanwhile, the diagnosis information transmitting unit 140 may use PLC communication when transmitting the diagnosis information to the external terminal 30 in the home.

1 and 3, the diagnostic information transmitting unit 140 may transmit diagnostic information on an abnormal state that occurred during charging of the electric vehicle 20 to a vehicle communication including a PLC communication and a CP signal The control unit 130 diagnoses whether or not an abnormality has occurred in the diagnosis unit 120 when the commercial power is supplied from the power supply unit 10 and (2) (3) the diagnostic information transmission unit 140 transmits the diagnostic information to the electric vehicle 20 by using the vehicle communication, (4) The on-board charging device of the electric vehicle 20 transmits the diagnosis information to the external terminal 30 via the CAN communication in the electric vehicle 20, .

At this time, the external terminal 30 receiving the diagnosis information may be a smart phone owned by the user, and the diagnosis information may be displayed in a cluster inside the electric vehicle 20.

1 and 4, the diagnostic information transmitting unit 140 may transmit diagnostic information on an abnormal state that occurred during charging of the electric vehicle 20 to a wifi (WiFi), 3G, LTE, and Bluetooth (1) diagnoses whether an abnormality has occurred in the diagnosis unit 120 when the commercial power is supplied from the power supply unit 10, (2) (3) the diagnostic information transmission unit 140 determines whether the abnormal condition diagnosed by the diagnosis unit 120 corresponds to the charging stop condition or the warning condition, and (3) And transmits the diagnostic information to the controller 30. At this time, the external terminal 30 receiving the diagnosis information may be a smart phone owned by the user.

Accordingly, since the diagnostic information transmitting unit 140 is configured to transmit the diagnostic information using various communication methods, the user can receive the diagnostic information without restriction due to the communication method, Can be confirmed immediately.

The setting information input unit 150 is used to input setting information for diagnosing an abnormal state of the diagnosis unit 120 and setting information including communication information for transmitting the diagnosis information. (USB) which is an information recording medium capable of being detached and mounted.

That is, when the setting information is pre-stored, the setting information is input. In addition, the setting information stored in the USB unit may be provided to modify and update setting information using a personal computer. Therefore, it is possible to input the setting information more easily and conveniently.

The setting information input unit 150 may be provided as a touch screen, a keypad, or an input button so that the user can directly touch or press a button to input setting information.

The storage unit 160 stores various kinds of information. In particular, the storage unit 160 stores diagnostic information about an abnormal condition diagnosed by the diagnosis unit 120 in real time, and stores setting information of the setting information input unit 150 .

The storage unit 160 may be a flash memory including a Secure Digital (SD) card. In addition, the diagnostic information stored in the storage unit 160 may be transmitted to the setting information input unit 150 described above.

The display unit 170 displays the diagnostic information in real time, and is provided with a liquid crystal display, a touch screen, or an LED. Particularly, in the case of LED, the manufacturing cost is low, and control and installation are easy.

Preferably, the display unit 170 diagnoses whether an abnormality has occurred in the diagnostic unit 120, and generates the diagnostic information under the control of the controller 130 when the controller 130 generates the diagnostic information. And may be provided to display in real time.

5 is a diagram for explaining a diagnostic information providing method according to an embodiment of the present invention.

Referring to FIG. 5, a method of providing diagnostic information performed in the charge control apparatus according to an embodiment of the present invention will be described.

However, since the functions performed in the diagnostic information providing method shown in FIG. 5 are all performed in the charge control apparatus described with reference to FIGS. 1 to 4, all of the functions described with reference to FIGS. 1 to 4 Is performed in the diagnostic information providing method according to the preferred embodiment of the present invention, and all the functions described with reference to FIG. 5 are performed in the charge control apparatus according to the preferred embodiment of the present invention.

First, setting information is input using a setting information input unit (S110).

At this time, the setting information input unit may be provided with USB, in which setting information for diagnosing an abnormal state and setting information including communication information for transmission of diagnostic information are stored. That is, when the setting information is pre-stored, the setting information is input and the setting information is stored in the storage unit.

Next, a power supply unit for supplying commercial power and an electric vehicle for receiving commercial power are connected, and the relay of the cable connection circuit unit is turned on to supply commercial power to the electric vehicle to start charging (S120).

At this time, the input side cable is connected to the power supply unit, and the output side cable is connected to the electric vehicle. The cable connection circuit unit is connected between the input side cable and the output side cable. That is, under the control of the control unit, when the relay of the cable connection circuit unit is turned on or off, the commercial power supply is supplied or shut off.

Next, when charging of the electric vehicle is started, the diagnosis unit diagnoses whether or not an abnormal state occurs in the commercial power source, the power supply unit, the cable connection circuit unit, and the electric vehicle at step S130.

At this time, the diagnosis unit may detect an abnormal state of the commercial power input from the power supply unit and output to the electric vehicle through the cable connection circuit unit, an abnormal state of the power supply unit, an abnormal state of the cable connection circuit itself, Diagnosis.

Particularly, the diagnosis unit can diagnose the abnormality of the electric vehicle itself, the abnormality of the electric vehicle itself, the abnormality of the electric power source itself, It may be provided to diagnose whether or not the voltage drop and deterioration of the supply unit occur.

If the diagnostic unit does not diagnose any abnormal state, the commercial power may be supplied until the charging of the electric vehicle is completed (S160) without performing steps 140 and 150, which will be described later .

Next, the controller generates diagnostic information by determining whether the abnormality diagnosed by the diagnosis unit is a charging stop or warning condition, and stops the supply of commercial power when an abnormal condition of the charging stop condition occurs (S140).

At this time, the control unit may turn off the relay of the cable connection circuit unit to cut off the supply of commercial power. If the abnormal state of the CP signal and the PWM signal and the abnormal state of the electric vehicle itself are diagnosed, the control unit may stop the charging stop condition .

On the other hand, the controller determines that the voltage drop and deterioration occurring in the power supply unit is a warning condition when diagnosed. In addition, when the abnormal condition of the warning condition is diagnosed, the controller performs the process of generating the diagnostic information without blocking the charging of the electric vehicle.

Next, the storage unit stores the diagnostic information, and the diagnostic information transmitting unit transmits the diagnostic information to the predetermined external terminal in real time (S150).

At this time, the diagnostic information transmitting unit may transmit the diagnostic information using any one of a home network, a PLC communication, a CP signal, a wireless communication, and an Internet network.

The diagnostic information transmitting unit may transmit the diagnostic information to an external terminal including a general-purpose communication terminal including a smart phone and a personal computer, and an external device including a communicable electrical component mounted on the electric vehicle, set through the setting information input unit .

Meanwhile, the diagnosis information may be displayed on the display unit in real time while the diagnostic information is transmitted, and when the diagnostic information is not transmitted, the diagnostic information may be displayed only on the display unit.

Accordingly, the user can receive the diagnosis information of the abnormal state occurring when the electric vehicle is charged through the external terminal in real time, so that it is possible to immediately recognize whether the abnormal state has occurred or not, Repair, and so on. In particular, since the user can accurately grasp the reason for stopping charging of the electric vehicle by using the diagnosis information, more appropriate replacement can be performed.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

110: Cable connection circuit part
120:
130:
140: Diagnosis information transmission unit
150: setting information input section
160:
170:

Claims (16)

A cable connection circuit part having an input side cable connected to the power supply part and an output side cable connected to the electric vehicle and having a relay for supplying or cutting off the commercial power input from the power supply part;
A diagnostic unit for diagnosing an abnormal state of the commercial power supply, the power supply unit, the cable connection circuit unit, and the electric vehicle when the electric vehicle is charged;
Wherein the diagnosis unit determines whether the abnormal condition diagnosed by the diagnosis unit corresponds to a charging stop condition or a warning condition and generates information on the abnormal condition and the reason for stopping charging as diagnosis information. A control unit for controlling the relay of the commercial power supply to shut off the supply of commercial power;
A diagnostic information transmitting unit for transmitting the diagnostic information to a predetermined external terminal in real time;
A setting information input unit for inputting setting information for diagnosing an abnormal state of the diagnosis unit and setting information including communication information for transmitting the diagnosis information; And
And a storage unit for storing the diagnostic information and the setting information,
The diagnosing unit is configured to diagnose the abnormality of the electric vehicle itself, the abnormality of the CP signal and the PWM signal transmitted from the electric vehicle, the abnormality of the electric vehicle itself, the occurrence of overvoltage, overcurrent and leakage current, the malfunction of the cable connection circuit, The voltage drop and the deterioration of the battery are diagnosed,
The control unit determines that the charging stop condition is a condition of overvoltage, overcurrent, leakage current, malfunction of the cable connection circuit, failure of connection of each cable, abnormal state of the CP signal and PWM signal, , It is judged that the voltage drop and deterioration are warning conditions when diagnosed,
The setting information input unit includes a USB (Universal Serial Bus)
Wherein the diagnostic information transmitting unit transmits the diagnostic information using any one of a home network, a PLC communication, a CP signal, a wireless communication, and the Internet.
delete delete delete delete delete delete delete The method according to claim 1,
And a display unit for displaying the diagnostic information in real time.
(A) inputting and storing setting information including setting information for diagnosis of an abnormal state and communication information for transmitting the diagnostic information;
(1) connecting a power supply unit to an electric vehicle, and turning on a relay of the cable connection circuit unit to supply commercial power to the electric vehicle;
(2) diagnosing whether or not an abnormal state has occurred in the commercial power source, the power supply unit, the cable connection circuit unit, and the electric vehicle;
(3) It is determined whether the abnormal state is a charge stop or warning condition, and information about the abnormal state and the reason for stopping charging is generated as diagnostic information. If an abnormal state of the charge stop condition occurs, the relay of the cable connection circuit portion is controlled Thereby blocking the supply of the commercial power supply; And
(4) transmitting or storing the diagnosis information to a predetermined external terminal in real time,
(2) is a step of detecting over-voltage, over-current and leakage current, malfunction of the cable connection circuit, defective connection of each cable, abnormal state of the CP signal and PWM signal transmitted from the electric vehicle, And diagnoses whether voltage drop and deterioration of the power supply unit occur,
If the abnormal condition of the CP signal and the PWM signal and the abnormality of the electric vehicle itself are diagnosed, the step (3) may include a charging stop condition, an overcurrent condition, a leakage current, a malfunction of the cable connection circuit, It is determined that the voltage drop and the deterioration are warning conditions when diagnosis is made,
Wherein the step (4) is for transmitting the diagnostic information by using any one of a home network, a PLC communication, a CP signal, a wireless communication, and an Internet network.
delete delete delete delete delete 11. The method of claim 10,
And the step (4) displays the diagnostic information in real time.

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