KR20200032512A - Method for diagnosing and maintenancing of vehicle condition during electric vehicle charging, and its system - Google Patents

Abstract

The present invention relates to a method for diagnosing a vehicle condition during electric vehicle charging, and a system thereof. The method comprises the steps of: connecting an electric vehicle (100) to a charger (200) to diagnose the condition of the electric vehicle (100) during charging of the electric vehicle (100); transmitting a condition diagnosis result for the electric vehicle (100) to a server (300) connected to the charger (200); displaying the received condition diagnosis result for the electric vehicle (100) and guiding the need to replace consumables to be replaced when the consumables to be replaced are present; requesting whether to immediately pay for the consumables; when an immediate payment of the consumables is approved, automatically making the payment with information input by using a terminal (240) inside the charger (200) or with pre-registered information, connecting to a close repair shop (400) and providing a guidance. The method of the present invention can diagnose an abnormality in a system and the consumables in the electric vehicle by using a charging time for the vehicle, displays a close repair shop when the consumables are required to be replaced, and enables an immediate payment, thereby reducing a maintenance and repair time for the vehicle.

Description

METHOD FOR DIAGNOSING AND MAINTENANCING OF VEHICLE CONDITION DURING ELECTRIC VEHICLE CHARGING, AND ITS SYSTEM}

The present invention relates to a method for diagnosing a vehicle condition during charging of an electric vehicle, and a system thereof. A method for diagnosing a vehicle condition during charging of an electric vehicle including a diagnostic function capable of diagnosing the electric vehicle condition during charging of the electric vehicle and a maintenance function guiding to a nearby repair shop. It's about the system.

2. Description of the Related Art In recent years, demands for electric vehicles are increasing as regulations on exhaust gases are increased. Unlike a general vehicle having an internal combustion engine, the electric vehicle charges fuel, that is, electricity, so that the electric vehicle is parked in the place where the charger is installed and the battery is charged.

Accordingly, efforts are being made to revitalize electric vehicles by establishing an infrastructure such as the installation of a charger for charging the battery.

However, the current charger only provides the battery charging function of the electric vehicle, and accordingly, in order to inspect the electric vehicle, there is a problem in that a visit to a separate repair shop is required to receive help from experts.

Patent Literature 1: Korean Registered Patent Publication No. 0963529 (Registered on June 7, 2010)

An object of the present invention is to diagnose a vehicle condition during charging of an electric vehicle to shorten the time for separate maintenance and maintenance, including a diagnostic function capable of diagnosing the electric vehicle condition during charging of the electric vehicle and a maintenance function guiding to a nearby repair shop. It is to provide a method and a system thereof.

According to a feature of the present invention for achieving the above object, the present invention connects an electric vehicle to a charger to diagnose a state of the electric vehicle during charging of the electric vehicle and a diagnosis result of the condition of the electric vehicle with the charger A transmission step to transmit to a connected server, a guide step to display the status diagnosis result of the received electric vehicle and guide the need to replace the consumable when there is a consumable to be replaced, and a request step to request whether or not the consumable is immediately paid, and the consumable When the payment is immediately approved, it automatically pays with the input information or pre-registered information using the terminal inside the charger, and includes a maintenance guide step to connect and guide the nearest repair shop.

In the diagnosis step, when the electric vehicle is connected to the charger and the charging mode entry signal between the charger and the electric vehicle is received and the charging mode entry signal is received, SLAC and SDP processes are performed according to standard procedures, and then a protocol is installed. It includes the steps.

After the step of installing the protocol, the step of entering an electric vehicle state scan mode through a power line in the can system of the electric vehicle and supplying electric power to the electrical equipment through the power line, and the can system through the vehicle self-diagnostic device on the canvas line Diagnosing the state of the electrical equipment and transmitting the diagnosis result to the server through a gateway.

When power is supplied to the electronics, the vehicle self-diagnostics diagnose the state of the electronics while communicating with the electronic control unit (ECU) of the electronics.

The electrical equipment includes a battery management system that grasps information including the voltage, current, output, and temperature of the battery, and the battery management system determines whether the identified information is outside a preset normal range and diagnoses whether the battery is abnormal.

The electrical equipment includes a battery, a BMS, an electric motor, an inverter, a converter, and a control unit.

The server shares the current status of consumables, serviceable items, and promotional event information with nearby workshops, and connects and guides them to nearby workshops.

In order to supply charging power to the battery of the electric vehicle, the charging cable connecting the electric vehicle and the charger and the battery power during charging of the electric vehicle are supplied, and a status diagnosis unit for diagnosing the condition of the electric vehicle and the status diagnosis result of the electric vehicle are transmitted. Display the diagnosis result of the electric vehicle, guide the need to replace the consumable if there is a consumable to be replaced, and inform the user whether or not the consumable is to be immediately paid for payment. It includes a server that automatically pays with input information or pre-registered information, and connects and guides you to a nearby workshop.

The condition diagnosis unit includes a self-diagnostic device for a vehicle connected to a CAN BUS line in a CAN system that connects the electronic control unit of the electric equipment to diagnose the condition of the electric equipment.

The condition diagnosis unit includes a battery management system that grasps information including the voltage, current, output, and temperature of the battery and determines whether the identified information is outside a preset normal range, thereby diagnosing an abnormality of the battery.

The charger includes a gateway for transmitting the result of diagnosis of the electric vehicle diagnosed by the state diagnosis unit to the server.

The display is one or more of a mobile phone app of a registered owner, a display unit provided inside the electric vehicle, and a monitor unit of the charger.

The server shares the status of consumables with the neighboring workshop where the charger is located, serviceable items and promotional event information, and connects and guides the nearest workshop.

The server diagnoses the state of the electric vehicle through an authentication procedure using a public key infrastructure and provides the diagnosis result to the borrower.

The state diagnosis of the electric vehicle is performed including a battery, a BMS, an electric motor, an inverter, a converter, and a control unit.

The present invention can diagnose the abnormality of the system and consumables in the vehicle by using the charging time of the electric vehicle, and when replacement of the consumables is necessary, guide the nearby repair shop, and payment is possible through pre-entered and registered information. There is an effect that can shorten the time for maintenance and maintenance of the vehicle.

In addition, the present invention is a service based on the location of the charger and the workshop, and guides to a workshop near the location and provides price information such as a promotional event of the workshop, thereby providing a service for customer convenience rather than providing unilateral information.

1 is a conceptual view showing a vehicle condition diagnosis method and a system during charging of an electric vehicle according to the present invention.
2 is a block diagram showing the configuration of a vehicle condition diagnosis system during charging of an electric vehicle according to the present invention.
Figure 3 is a block diagram showing the configuration of the server in the vehicle condition diagnosis system during charging of an electric vehicle according to the present invention.
4 is a view showing an example of providing a diagnosis result by the vehicle state diagnosis method during charging of an electric vehicle according to the present invention to an owner through an app of a mobile phone.
5 is a flowchart for explaining a method for diagnosing a vehicle condition during charging of an electric vehicle according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The method of diagnosing a vehicle state during charging of the electric vehicle of the present invention, as shown in FIG. 1, connects the electric vehicle 100 to the charger 200 to diagnose the state of the electric vehicle 100 during charging of the electric vehicle 100. The diagnosis result of the state of the electric vehicle 100 is transmitted to the server 300 connected to the charger 200. The server 300 displays the result of the state diagnosis of the electric vehicle 100 received through the charger 200 and guides the need to replace the consumables when there is a consumable to be replaced.

The server 300 requests whether or not the consumables are to be immediately paid for payment, and when the immediate payment of the consumables by the borrower is approved, the replacement cost of the consumables is automatically paid using the information entered using the terminal inside the charger 200 or pre-registered information. You can connect and guide to the nearest workshop.

The display 310 may be one or more of a mobile phone app of a registered owner, a display unit provided inside the electric vehicle 100, and a monitor unit of the charger 200. For example, the diagnosis result of the electric vehicle and the need for replacement of consumables may be displayed on the app installed in the mobile phone of the car owner, in this case, the car owner may approve whether or not the consumable is immediately paid through the mobile phone app.

The server 300 may provide the vehicle owner with the results of diagnosing the condition of the electric vehicle, when to replace the consumables, and promotion information of a nearby workshop. In addition, the server 300 may receive and store the status of consumables and consumables, serviceable items, and promotional event information at a nearby workshop. In addition, the server 300 can store a list of workshops, types of consumables, types of faults, and vehicle diagnosis results in a database and store them in the storage unit 302.

The server 300 may receive information such as payment status and the latest replacement date from the borrower. The server 300 may use the information of the storage unit 302 to connect to and guide a nearby repair shop that can replace consumables. In addition, the server 300 may transmit the request information for replacement of consumables to the workshop 400, and may guide the location of the corresponding workshop 400 to the borrower.

As shown in FIG. 2, the vehicle condition diagnosis system during charging of the electric vehicle is supplied with electric power through the charging cable 201 and the charging cable 201 connecting the electric vehicle 100 and the charger 200, so that the electric vehicle 100 The state diagnosis unit 130 for diagnosing the state, the charger 200 receiving the diagnosis results of the electric vehicle 100 diagnosed by the state diagnosis unit 130 and transmitting the diagnosis results to the server 300, and providing diagnostic results to the borrower and consumables It includes a server 300 for guiding replacement and workshop information.

The electric vehicle 100 and the charger 200 are connected by a charging cable 201. Charging power is supplied to the battery 120 of the electric vehicle 100 through the charging cable 201. The charging cable 201 includes a charging power supply function and a data communication function. The charging cable 201 may be a charging control device that performs control and safety functions related to charging of an electric vehicle, for example, a charging cable provided with an In-Cable Contril Box (ICCB).

The charging cable 201 connects the charging input unit 110 of the electric vehicle 100 and the charging output unit 210 of the charger 200. The charging input unit 110 is connected to the electric vehicle 100 and the charger 200, and when a charging mode entry signal is received, performs a SLAC, SDP process according to standard procedures and installs a protocol.

After performing SLAC and SDP processes according to the standard procedure, check whether the charger 200 supports the protocol supported by the electric vehicle 100, and if the charger 200 supports it, proceed to the next step for charging, and If 200) does not support the protocol supported by the electric vehicle, the charging input unit 110 downloads and installs the protocol from the outside.

When the protocol installation by the charging input unit 110 is completed, the status diagnosis unit 130 enters the electric vehicle status scan mode through the power line in the CAN system of the electric vehicle 100. The condition diagnosis unit 130 includes a vehicle self-diagnostic device 131 and a battery management system 133.

CAN SYSTEM is to enable the exchange of information between ECUs by connecting a number of electronic control units (ECUs) to the canvas (CAN BUS) line.

ECUs include in-vehicle EMS (Engineer Management System), TCU (Telecommunication Control Unit), HDU (Hybrid Control Unit), BMS (Battery Management System), ECS (Electronic Power Steering), MDPS (Motor Driving Power Steering), LKAS (Lane) It is installed in Keeping Assist System (SCC), Smart Cruise Control (SCC), etc. and is connected to the vehicle self-diagnostic device 131 through CAN communication. The canvas line connects to the CAN transceiver to enable various diagnostics while each ECU and the vehicle self-diagnostic device 131 communicate. The vehicle self-diagnostic device 131 may define a diagnosis-related CAN ID for ECUs to be diagnosed.

In an embodiment, the vehicle self-diagnostic device 131 is connected to the canvas (CAN BUS) line in the CAN system connecting the ECU of the electrical equipment to diagnose the state of the electrical equipment 132.

The electrical equipment 132 includes a battery, a BMS, an electric motor, an inverter, a converter, and a control unit.

When power is supplied to the electrical components 132, the vehicle self-diagnostic device 131 diagnoses the state of the electrical components 132 while communicating with the ECU installed in the electrical components 132. Each ECU installed in the electrical equipment 132 initiates CAN communication when power is supplied to the electrical equipment 132, and transmits a CAN message to the vehicle self-diagnostic device 131 through each node through CAN communication. The CAN message may include operation state information (eg log information) of each ECU according to driving of the vehicle. The battery 120 supplies power required for the electrical equipment 132 through a power line connected to the electrical equipment 132. The power line may be PLC (Power Line Communication).

CAN messages provide basic information about CAN messages such as CAN channel, node, ID, data length, and message class, and data attributes such as SendType (whether it is a periodic message or an event message), cycle time, number of message repetitions, and start-up actions. All inclusive.

The battery management system 133 is one of electrical equipment. However, the battery management system 133 checks the state of the battery separately from the vehicle self-diagnostic 131 to generate inspection data. The battery management system 133 may diagnose information including the voltage, current, output, and temperature of the battery, and determine whether the identified information is outside a preset normal range to diagnose whether the battery 120 is abnormal.

The state diagnosis result of the electric vehicle 100 diagnosed by the vehicle self-diagnostic device 131 and the battery management system 133 is transmitted to the gateway 230. That is, the result of diagnosis of the state of the electric vehicle is transmitted to the gateway of the charger through the charging cable, and is transmitted to the server through the gateway.

The charger 200 includes a charging output unit 210, a charging power unit 220, a gateway 230, and a terminal 240. The charger 200 is connected to the electric vehicle 100 through the charging output unit 210, and the charging power unit 220 supplies charging power through the charging output unit 210. The gateway 230 transmits the state diagnosis result of the electric vehicle 100 received from the state diagnosis unit 130 through the charging cable 201 to the server 300. The terminal 240 provides a communication function for payment.

As shown in FIG. 3, the server 300 includes a control unit 301, a storage unit 302, and a communication unit 303. The control unit 301 receives the state diagnosis result of the electric vehicle and displays the state diagnosis result of the electric vehicle, and guides the need to replace the consumable when there is a replacement consumable. In addition, the control unit guides whether or not the payment of the consumables is made immediately. When the payment of the consumables is approved immediately, the terminal 240 in the charger is used to automatically pay with the information entered or pre-registered information, and connect and guide the nearest repair shop.

The storage unit 302 may store and store a list of workshops, types of consumables, types of faults, and vehicle diagnosis results in a database. Accordingly, the server 300 may manage consumables of the electric vehicle 100.

The communication unit 303 may communicate with a charger or a repair shop using one or more communication methods of a home network, PLC communication, CP signal, wireless communication, and the Internet, and may provide vehicle diagnosis results to the vehicle owner.

The server 300 may diagnose the state of the electric vehicle 100 through an authentication procedure using a public key infrastructure (PKI) to increase information reliability, and provide diagnostic results to the borrower. The public key infrastructure is an asymmetric encryption method in which the encryption key and the decryption key are different. The server 300 encrypts the diagnosis result data provided to the borrower and the authentication key that decrypts the password to verify the diagnosis result data by the borrower can be used to secure data and minimize the possibility of information leakage.

For example, a hardware-based security module is installed on the server 300 to ensure the integrity of device data, and a secure network environment is constructed to prevent network attacks in the IoT communication environment. In addition, a certificate can be provided to each device and the borrower through a public key infrastructure.

In addition, the server 300 may further improve security functions by integrating FIDO-based biometric authentication and PKI.

The display 310 may be included in the server 300 or may be included in the charger 200 or the electric vehicle 100.

Diagnostic results provided to the Borrower include the latest replacement date of the consumables and when the replacement is needed, and when requesting replacement of the consumables, the consumable price information and the location of a nearby repair shop may be provided together to allow the Borrower to select a workshop.

For example, as illustrated in FIG. 4, a diagnosis result is provided to the mobile phone app of the owner, and consumables that need to be replaced may be displayed together with the previous replacement date. By clicking the Borrower Payment and Workshop Information Bar, a nearby workshop location may be provided along with the consumable price. The borrower can select the desired workshop from the server-provided workshop and pay for the consumables. When the cost of the consumables is paid, the server can guide the corresponding workshop information and location. The vehicle's mobile phone app may display charging information of the vehicle. For example, it may be displayed how much the charging rate of the electric vehicle is. This is to allow the borrower to confirm the completion of charging after payment of consumables.

Meanwhile, the workshop 400 periodically provides consumables holding status, serviceable items, and promotional event information while transmitting / receiving with the server 300, and can receive consumable replacement request information from the server 300 together with vehicle number information. .

Hereinafter, a method for diagnosing a vehicle state during charging of an electric vehicle of the present invention will be described through a flowchart.

As illustrated in FIG. 5, a method for diagnosing a vehicle state during charging of an electric vehicle includes step S10 in which an electric vehicle is connected to a charger to receive a charging mode entry signal between the charger and the electric vehicle, and when a charging mode entry signal is received, the standard procedure is performed. Accordingly, after performing the SLAC, SDP process, the protocol is installed through the step (S20) and the step of entering the electric vehicle state scan mode through the power line (PLC) in the CAN system of the electric vehicle (S30) and the power line (PLC). Step of supplying electric power to the electronics (S40) and step of diagnosing the state of the electronics through the self-diagnostic device for the vehicle on the canvas (CAN BUS) line in the can system (S50) and transmitting the diagnosis result to the gateway through the charging cable ( S60) and transmitting the diagnosis result to the server through the gateway (S70).

When power is supplied to the electronics, the vehicle self-diagnostics can communicate with the electronic control unit (ECU) of the electronics through the canvas line to diagnose the state of the electronics. The vehicle self-diagnostic device can receive the diagnosis result by communicating with the gateway of the charger through the charging cable.

The server displays the received diagnostic result and guides the need to replace the consumable when there is a replacement consumable (S80). In addition, the server requests whether or not the consumables are immediately paid (S90).

When the immediate payment of the consumables by the borrower is approved, the server automatically pays for the consumables using input information or pre-registered information using the terminal inside the charger, and connects and guides the nearest repair shop (S100).

On the other hand, the server displays the received diagnostic result and ends the guide when there is no consumable to be replaced and completes charging (S110).

In addition, the server requests whether or not the payment of the consumables is made immediately (S90), and if the payment is refused immediately, the guidance is terminated and charging is completed (S110).

When charging is completed, the charging completion message may be displayed on the mobile phone of the owner, displayed on the charger, or displayed on the vehicle provided in the electric vehicle.

The above-described embodiment can diagnose whether the system and the consumables in the vehicle are abnormal using the charging time of the electric vehicle, and provides the latest replacement date and replacement time of consumables when providing diagnostic results to the borrower, so that the borrower replaces the consumables It is easy to judge whether or not.

In addition, the service is based on the location of the charger and the workshop, and it is possible to provide services for customer convenience rather than providing unilateral information, as it provides information on prices such as promotional events of the workshop and guides to the workshop near the location.

In addition, since the server can manage the status of consumables in the workshop and consumables in the vehicle, it is possible to shorten the maintenance time by ordering and paying for consumables in advance.

The present invention has been described with the best embodiments in the drawings and specifications. Here, although specific terms are used, they are used for the purpose of describing the present invention only, and are not used to limit the scope of the present invention described in the meaning limitation or the claims. Therefore, the present invention will be understood by those of ordinary skill in the art that various modifications and other equivalent embodiments are possible. Therefore, the true technical scope of the present invention should be defined by the technical spirit of the appended claims.

100: electric vehicle 110: charging input
120: battery 130: status diagnosis unit
131: vehicle self-diagnostics 132: electrical equipment
133: battery management system 200: charger
210: charging output unit 220: charging power unit
230: gateway 240: terminal
300: server 301: control unit
302: storage unit 303: communication unit
310: display 400: workshop

Claims (15)

A diagnostic step of connecting the electric vehicle to a charger to diagnose the state of the electric vehicle during charging of the electric vehicle;
A transmission step of transmitting a result of the diagnosis of the state of the electric vehicle to a server connected to the charger;
The server displays a diagnosis result of the received electric vehicle and guides the need to replace the consumable when there is a consumable to be replaced;
A request step of requesting whether or not the consumables are paid immediately; And
When the payment of the consumables is approved immediately, a maintenance guide step of automatically paying with input information or pre-registered information using a terminal inside the charger, and connecting and guiding a nearby workshop;
Vehicle state diagnosis method for charging an electric vehicle, characterized in that it comprises a. The method according to claim 1,
The diagnostic step,
A step in which the electric vehicle is connected to a charger to receive a charging mode entry signal between the charger and the electric vehicle; And
When the charging mode entry signal is received, performing a SLAC, SDP process according to a standard procedure and installing a protocol;
Vehicle state diagnosis method for charging an electric vehicle, characterized in that it comprises a. The method according to claim 2,
After the step of installing the protocol,
Entering the electric vehicle state scan mode through a power line in the CAN system of the electric vehicle;
Supplying power to the electrical equipment through a power line;
Diagnosing the state of the electrical equipment through a self-diagnostic device for a vehicle on a canvas line in the can system; And
Transmitting a diagnosis result to the server through a gateway;
Vehicle state diagnosis method for charging an electric vehicle, characterized in that it comprises a. The method according to claim 3,
When electric power is supplied to the electric equipment, the vehicle self-diagnostic device communicates with the electronic control unit (ECU) of the electric equipment to diagnose the condition of the electric vehicle. The method according to claim 3,
The electrical equipment includes a battery management system to grasp information including voltage, current, output and temperature of the battery,
The battery management system is a method for diagnosing a vehicle condition during charging of an electric vehicle, characterized in that determining whether or not the identified information is outside a preset normal range to diagnose whether or not the battery is abnormal. The method according to claim 3,
The electrical equipment is a battery, BMS, an electric motor, an inverter, a converter, and a vehicle condition diagnosis method for charging an electric vehicle, characterized in that it comprises a control unit. The method according to claim 1,
The server shares the current status of consumables, serviceable items and promotional event information with a nearby workshop, and connects to a nearby workshop to guide the vehicle. A charging cable connecting the electric vehicle and the charger to supply charging power to the battery of the electric vehicle;
A state diagnosis unit that receives power of a battery while charging the electric car and diagnoses the state of the electric car; And
Receiving the status diagnosis result of the electric vehicle, displaying the status diagnosis result of the electric vehicle, and in case there is a consumable to be replaced, guides the need to replace the consumable, and prompts whether or not the consumable is to be paid immediately. When the server is automatically charged with the input information or pre-registered information using the terminal inside the charger, the server connects to the nearest workshop and guides you:
An electric vehicle condition diagnosis system during charging of an electric vehicle, comprising: a. The method according to claim 8,
The condition diagnosis unit
An electric vehicle condition diagnosis system during charging of an electric vehicle, comprising a self-diagnostic device for a vehicle connected to a CAN BUS line in a CAN system connecting the electronic control unit of the electric equipment to diagnose the condition of the electric equipment. The method according to claim 8,
The condition diagnosis unit
An electric vehicle state during charging of an electric vehicle, characterized by comprising a battery management system for diagnosing the presence or absence of a battery by grasping information including the voltage, current, output, and temperature of the battery and determining whether the identified information is outside a preset normal range. Diagnostic system. The method according to claim 8,
The charger comprises a gateway for transmitting a result of the diagnosis of the state of the electric vehicle diagnosed by the state diagnosis unit to the server, the electric vehicle status diagnosis system during charging of the electric vehicle. The method according to claim 8,
The display is a mobile phone app of the registered vehicle owner, the display unit provided inside the electric vehicle, the electric vehicle status diagnosis system during charging of the electric vehicle, characterized in that at least one of the monitor portion of the charger. The method according to claim 8,
The server shares the status of consumables, serviceable items, and promotional event information with a nearby workshop where the charger is located, and connects to a nearby workshop to guide the electric vehicle status diagnosis system during charging of the electric vehicle. The method according to claim 8,
The server diagnoses the state of the electric vehicle through an authentication procedure using a public key infrastructure, and provides the diagnostic result to the borrower. The method according to claim 8,
The electric vehicle condition diagnosis system during charging of the electric vehicle, characterized in that the diagnosis of the electric vehicle is performed including a battery, a BMS, an electric motor, an inverter, a converter, and a control unit.

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