JP5533785B2 - Charger - Google Patents

Description

  The present invention relates to a charging device that charges a battery mounted as a power source of a motor that travels on a motor.

  There is known a remote failure diagnosis system that performs wireless communication between a vehicle and an information center and performs failure diagnosis of the vehicle. In the remote failure diagnosis system described in Patent Document 1, failure information is notified from the vehicle to the information center, and a failure diagnosis procedure for the vehicle is selected based on the failure information at the information center. Then, the selected failure diagnosis procedure is notified from the information center to the vehicle, and the vehicle performs a failure diagnosis of the vehicle according to the failure diagnosis procedure received from the information center. According to such a configuration, the number of times failure information is notified from the vehicle to the information center and the number of times failure notification procedures are notified from the information center to the vehicle can be reduced to one. It is possible to accurately diagnose a vehicle failure while suppressing the communication load.

  In addition, an electric vehicle that obtains driving force from a motor that uses a battery (secondary battery) as a power source, or a hybrid vehicle that obtains driving force from a motor and an engine and can charge the battery serving as the power source of the motor from the outside. It has been known. Such an electric vehicle or the like needs to charge the battery at a frequency according to the travel distance or the like. For this reason, during the period of charging the battery, by performing failure diagnosis using the remote failure diagnosis system described in Patent Document 1, failure diagnosis can be performed at a frequency according to the travel distance, etc. It is thought that failure of electric vehicles etc. can be detected early.

  On the other hand, Patent Document 2 describes a charging station that performs failure diagnosis of a robot while charging the robot. By applying the invention described in Patent Document 2 to a charging device that charges a battery of an electric vehicle or the like, it is possible to perform a failure diagnosis using a charging time for the electric vehicle or the like.

JP 2006-64651 A JP 2008-178959 A

  However, in the charging station described in Patent Document 2, if time is required for failure diagnosis, there is a possibility that failure diagnosis may continue even after the end of charging. There is a risk of waiting for drivers and passengers such as electric cars to rush.

  The present invention has been made in view of the above problems, and an object thereof is to provide a charging device or the like that can detect a failure of an electric vehicle or the like at an early stage without waiting for a driver or a passenger.

The charging device according to claim 1, which has been made in view of the above problems, is configured to charge a battery mounted as a power source of the motor on a vehicle traveling by the motor from the outside of the vehicle. And in the charging period until the charging time elapses after starting charging the battery, the charging time detection means for detecting the charging time that is the time required for charging the battery,
Fault diagnosis means for performing fault diagnosis of the vehicle by communicating with an in-vehicle device mounted on the vehicle being charged.
In addition, the charging device includes a vehicle type detection unit that detects a vehicle type, a charging device side communication unit that communicates with an externally installed server, and a charging device side communication unit. Obtaining means for obtaining diagnostic information, which is information relating to a failure diagnosis procedure corresponding to the type of vehicle detected by the detecting means.
Then, the failure diagnosis means performs a failure diagnosis according to the type of the vehicle to be charged in accordance with the diagnosis information acquired by the acquisition means within the charging period, and the acquisition means acquires a specific type of vehicle from the server. A plurality of pieces of diagnostic information having different contents are acquired.
In addition, the charging device according to the state of the vehicle detected by the state detecting unit among the plurality of pieces of diagnostic information about the type of the vehicle acquired by the acquiring unit and the state detecting unit that detects the state of the vehicle Selecting means for selecting one or a plurality of diagnostic information, and the failure diagnosing means performs a failure diagnosis according to the diagnostic information selected by the selecting means within the charging period, and each diagnosis information has a priority and A time required for failure diagnosis performed according to the diagnosis information is set.
And the selection means is selected from those having a high priority within a range in which the sum of the set required times is equal to or less than the charging time from among the diagnostic information selected according to the state of the vehicle to be charged. Select diagnostic information in order.

  The charging time detection means communicates with, for example, an ECU mounted on a vehicle that performs charging, acquires the remaining amount of the battery that is the power source of the motor from the ECU, and charges based on the remaining amount of the battery. May be calculated. In addition to this, for example, communication with the ECU may be performed, and the charging time calculated based on the remaining amount of the battery or the like may be acquired by the ECU. The remaining amount of the battery may be detected, and the charging time may be calculated based on the detected remaining amount.

  According to such a configuration, the failure diagnosis is performed every time the battery, which is the power source of the motor that provides driving force to the vehicle, is charged. Therefore, the failure diagnosis is performed at a frequency according to the travel distance of the vehicle. Can detect failures early. In addition, since the failure diagnosis is performed within the charging time of the vehicle battery, the vehicle driver and passengers do not have time for failure diagnosis.

Therefore, according to the charging device of the first aspect, the failure of the electric vehicle or the like can be detected at an early stage without causing the driver or passenger to wait.
In addition, when the above-mentioned remote failure diagnosis system is used and wireless communication is performed with an information center during a period in which the operation of the electric vehicle or the like is not performed, the failure diagnosis of the electric vehicle or the like is performed. As a result, the electric power stored in the battery serving as the power source of the motor is consumed, and the distance that the electric vehicle or the like can travel may be reduced. Furthermore, depending on the location where the electric vehicle or the like is located, good wireless communication may not be possible with the information center. In such a case, it is necessary between the electric vehicle and the information center. Information cannot be transmitted / received, and the execution of failure diagnosis is restricted, and as a result, the discovery of failure may be delayed.

  On the other hand, according to the charging device according to claim 1, a failure diagnosis of an electric vehicle or the like can be performed without consuming the electric power stored in the battery, and the distance that the electric vehicle or the like can travel by the failure diagnosis Will never drop.

  In addition, when the charging device is installed at a charging stand for charging an electric vehicle or the like or at home, the communication state between the charging device and the information server can be easily maintained in a good state. For this reason, the execution of the failure diagnosis is not limited, and it is possible to prevent the discovery of the failure from being delayed.

Moreover, the case where the content of failure diagnosis differs according to the kind of vehicle used as the object of failure diagnosis can be considered .

On the other hand, according to the charging device of the first aspect, it is possible to perform a failure diagnosis with the contents corresponding to the type of the electric vehicle or the like to be charged, and to detect the failure with higher accuracy. In addition, since diagnostic information used for fault diagnosis is acquired from the server, for example, even when charging a new electric vehicle or the like, corresponding diagnostic information is acquired and fault diagnosis with appropriate contents is performed. be able to. Further, even when the diagnostic information is updated for some reason, a failure diagnosis according to the updated diagnostic information can be performed.

Moreover, the case where the content of the failure diagnosis to be performed differs according to the state of the electric vehicle or the like such as the travel distance or the years of use can be considered .

On the other hand, according to the charging device of the first aspect, it is possible to perform a failure diagnosis with the contents corresponding to the state of the electric vehicle or the like to be charged, and to detect the failure more reliably.
In addition, since the charging device of the present invention performs failure diagnosis within a limited time such as charging time for an electric vehicle or the like, in order to find a serious failure that hinders driving at an early stage, charging time It is necessary to set the contents of the fault diagnosis appropriately according to the situation.

On the other hand, according to the charging device according to claim 1, it is possible to perform a failure diagnosis with a high degree of importance even when the charging time is short, and to find out a serious failure that hinders driving at an early stage. can do.
Further, failure diagnosis of an electric vehicle or the like may be performed within the charging time by selecting diagnosis information as follows.

That is, as described in claim 2 , a charging device that charges a battery mounted as a power source of the motor on a vehicle traveling by the motor from the outside of the vehicle is a time required for charging the battery. Charging time detection means for detecting the charging time, and communication with an in-vehicle device mounted on the vehicle being charged within the charging period from the start of charging to the battery until the charging time elapses By performing the above, failure diagnosis means for performing a failure diagnosis of the vehicle may be provided.
Further, the charging device is information relating to a failure diagnosis procedure from the server via the charging device side communication means and the charging device side communication means for communicating with an externally installed server, and the failure is determined according to the information. An acquisition unit that acquires a plurality of pieces of diagnostic information for which a diagnosis diagnosis is performed and a time required for the failure diagnosis is set, and the sum of the set required times is a charging time among the plurality of diagnosis information acquired by the acquisition unit Selection means for selecting diagnostic information in the following range may be further provided. Then, the failure diagnosis unit may perform the failure diagnosis according to the diagnosis information selected by the selection unit during the charging period.

By doing so, the contents of the failure diagnosis can be set so that the failure diagnosis is completed during the charging time.
Moreover, you may comprise the server which provides diagnostic information to the charging device mentioned above as follows.

That is , a charging device that charges a battery mounted as a power source of a motor on a vehicle that is driven by a motor from the outside of the vehicle and that performs a failure diagnosis of the vehicle within a charging period during which the charging is performed A server that communicates with the charging device, a server that communicates with the charging device, and a transmission unit that transmits diagnostic information that is information related to a procedure of failure diagnosis to the charging device via the server communication unit A server characterized by comprising the above may be configured.

  By using such a server in combination with the above-described charging device, it is possible to cause the charging device to perform failure diagnosis with more appropriate contents.

It is a block diagram which shows the structure of the vehicle-mounted system mounted in the charging device, the server, the electric vehicle etc. (charging vehicle) where charging is performed. It is a block diagram which shows the structure of a server and the structure of the program which controls a charging device. It is a class diagram about each site | part of the program which controls a server, a charging vehicle, and a charging device. It is a timing chart which shows processing at the time of charge. It is a table | surface which shows attribute information etc. of diagnostic information. It is a flowchart about a diagnostic information selection process.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The embodiment of the present invention is not limited to the following embodiment, and can take various forms as long as they belong to the technical scope of the present invention.

[Description of configuration]
The charging device according to the present embodiment includes a battery (secondary battery) mounted as an electric power source for an electric vehicle that is driven by a motor, or a battery mounted as a power source for the motor in a hybrid vehicle that is driven by a motor and an engine. It is comprised so that it may charge.

  In addition, this charging device communicates with an externally installed server, and acquires diagnostic information that is information for performing failure diagnosis of an electric vehicle or the like (hereinafter referred to as a charging vehicle) that performs charging. And it is comprised so that the failure diagnosis of a charging vehicle may be performed based on the acquired diagnostic information, when charging the battery.

  Note that the charging device of the present embodiment may be provided in a charging stand that is a facility for charging a battery such as an electric vehicle, and may be configured to perform charging with electric power supplied for industrial use. Or you may be comprised so that it may charge by obtaining electric power from a household power supply.

FIG. 1 is a block diagram illustrating a charging device 10 according to the present embodiment, an in-vehicle system 20 mounted on a charging vehicle, and a server 40 that provides diagnostic information to the charging device 10.
The charging device 10 is configured around a well-known microcomputer including a CPU, ROM, RAM, I / O, and a bus line connecting these, and performs overall control of the charging device 10 according to a program stored in the ROM. The unit 11 includes a device such as a flash memory that does not require a memory holding operation, and includes a storage unit 12 that can store various types of information, an LCD and the like, and a display unit 13 that displays various images. In addition, the charging unit 14 that charges a battery mounted on the charging vehicle, the server communication unit 15 that communicates with the server 40 via the Internet 30, and the in-vehicle LAN 25 of the charging vehicle are connected by a cable or the like. In-vehicle LAN communication part 16 etc. which communicate with various ECUs connected to is provided.

  The in-vehicle system 20 includes various ECUs such as an AECU 23 and BECU 24 connected to the in-vehicle LAN 25, and a battery ECU 22 that controls the battery 21 that is connected to the in-vehicle LAN 25 and supplies electric power to a motor that provides driving power to the charging vehicle. Prepare.

  The server 40 is configured around a well-known computer including a CPU, ROM, RAM, I / O and a bus line connecting them, and controls the server 40 according to a program stored in the RAM or ROM. The control unit 41 includes a device such as an HDD that does not require a memory holding operation, and includes a storage unit 42 that can store various types of information, and a communication unit 43 that communicates with the charging device 10 via the Internet 30. .

  The charging device 10 is configured to perform a failure diagnosis of the charging vehicle by communicating with each ECU via the in-vehicle LAN 25 of the charging vehicle. More specifically, a method of transmitting a command to the ECU to perform a self-diagnosis and acquiring a diagnosis result, a command to the ECU to execute a diagnosis process, and acquiring an execution result of the diagnosis process. A method of determining the presence or absence of a failure based on the execution result is conceivable. Further, there is known an ECU having a function of generating and storing a fault code when detecting a fault and a function of generating and storing operation information indicating various sensor values and output values when a predetermined condition is established. A method of acquiring a failure code and operation information from such an ECU and determining the presence or absence of a failure based on the operation information is also conceivable.

  In addition, diagnosis information is provided for each type of charging vehicle, and indicates the ECU to be subjected to failure diagnosis in the corresponding type of charging vehicle, and in what procedure the failure diagnosis is performed on the ECU. It is comprised as information to show. More specifically, the diagnostic information is, for example, what command is sent in what order to the ECU that is the target of fault diagnosis, and what fault code or operation information is acquired. Alternatively, it may be configured to indicate a threshold value or the like when determining the presence or absence of a failure based on the execution result or operation information of the above-described diagnosis processing.

  In some cases, a plurality of diagnostic information items having different contents are provided for a specific type of charging vehicle. In such a case, the vehicle state of the charging vehicle (for example, travel distance, travel frequency, ECU) One or a plurality of diagnostic information is selected according to what kind of fault code has been detected, where the vehicle has traveled, etc.) and the charging time, and fault diagnosis is performed according to the selected diagnostic information.

Next, the configuration of the server 40 and the configuration of the program for controlling the charging device 10 will be described with reference to the block diagram shown in FIG.
As shown in FIG. 2, the server 40 is provided with functions as a diagnostic information DB 44 in which diagnostic information is accumulated and a diagnostic result DB 45 for accumulating diagnostic results of the charging vehicle 50 by the charging device 10. ing.

  In the diagnosis information DB 44, each model of the charging vehicle 50 that can be charged by the charging device 10 and all the diagnostic information provided for the charging vehicle 50 of the model are registered in association with each other. The control unit 41 of the server 40 is configured to notify the charging apparatus 10 via the communication unit 43 when diagnostic information corresponding to a specific type is updated in the diagnostic information DB 44. Has been.

  Further, the diagnosis result DB 45 is registered in a state in which the diagnosis result obtained from the charging device 10 is associated with the identification information provided uniquely for the charging vehicle 50 on which the failure diagnosis related to the diagnosis result has been performed. Has been.

  On the other hand, as a program for controlling the charging device 10, the failure diagnosis unit 100 that performs failure diagnosis of the charging vehicle 50, the communication unit 110 that communicates with the server 40 by the server communication unit 15, and the charging unit 14 are controlled, and the charging vehicle 50, a charging control unit 120 for charging the battery 21 mounted on the display unit 50, a display control unit 130 for displaying a diagnosis result and the like on the display unit 13 are provided.

  In the following, it is described that the failure diagnosis unit 100, the communication unit 110, and the like, which are part of the program of the charging device 10, perform processing, but it goes without saying that this is a control operated by the program. This means that the processing is performed by the unit 11.

  The charging control unit 120 communicates with the battery ECU 22 and the like constituting the in-vehicle system 20 mounted on the charging vehicle 50 via the in-vehicle LAN communication unit 16 to acquire the remaining battery level and charge based on the remaining battery level. The time required for charging (charging time) is detected.

  Further, the failure diagnosis unit 100 includes a diagnosis information DB 104 registered in a state in which the model of the charging vehicle 50 that has been charged in the past and all the diagnosis information corresponding to the charging vehicle 50 of the model are associated with each other. , A diagnosis information management unit 103 that manages the diagnosis information DB 104, a diagnosis control unit 101 that performs failure diagnosis, and a diagnosis execution unit 102.

  The diagnosis information management unit 103 acquires information indicating the model of the charging vehicle 50 from the diagnosis control unit 101 at the start of charging. When the diagnostic information corresponding to the model is not registered in the diagnostic information DB 104 or when the diagnostic information is updated in the server 40, the server 40 is inquired via the communication unit 110, The diagnostic information corresponding to the model is acquired from the server 40, the acquired diagnostic information is provided to the diagnostic control unit 101, and the model and the acquired diagnostic information are registered in the diagnostic information DB 104. On the other hand, when the diagnostic information corresponding to the model is registered in the diagnostic information DB 104 or when the diagnostic information is not updated in the server 40, the corresponding diagnostic information is read from the diagnostic information DB 104, Provided to the diagnosis control unit 101.

  Further, at the start of charging, the diagnosis control unit 101 receives vehicle information indicating the model of the charging vehicle 50, identification information uniquely assigned to the charging vehicle 50, vehicle status of the charging vehicle 50, and the like from the diagnosis performing unit 102. In addition to the acquisition, the charging time is acquired from the charging control unit 120. Furthermore, the diagnostic information corresponding to the model indicated by the vehicle information is acquired from the diagnostic information management unit 103, and one of the acquired diagnostic information is determined based on the vehicle state and the charging time of the charging vehicle 50 indicated by the vehicle information. The selected diagnosis information is provided to the diagnosis execution unit 102.

When the failure diagnosis is completed, a diagnosis result is acquired from the diagnosis execution unit 102, and the display control unit 130 displays the diagnosis result.
Further, at the start of charging, the diagnosis execution unit 102 communicates with each ECU configuring the in-vehicle system 20 mounted on the charging vehicle 50 via the in-vehicle LAN communication unit 16 to acquire vehicle information, and the vehicle information Is provided to the diagnosis control unit 101. Thereafter, diagnosis information is acquired from the diagnosis control unit 101, and a failure diagnosis for the charging vehicle 50 is performed according to the diagnosis information when the charging control unit 120 is charging.

  When the failure diagnosis is completed, the diagnosis execution unit 102 provides the diagnosis result to the diagnosis control unit 101 and transmits the diagnosis result and the identification information of the charging vehicle 50 to the server 40 via the communication unit 110. The identification information and the diagnosis result are registered in the diagnosis result DB 45.

[Description of operation]
Next, processing performed by the charging device 10 during charging of the charging vehicle 50 will be described with reference to FIGS.

  FIG. 3 is a class diagram in which the server 40, the charging vehicle 50, the diagnosis control unit 101, the diagnosis execution unit 102, the diagnosis information management unit 103, the communication unit 110, the charge control unit 120, and the display control unit 130 are represented as classes. (Since the outline of each class has already been described, the description is omitted). FIG. 4 is a timing chart showing what processing is performed in each class when charging by the charging device 10 is performed.

  3 and 4, the server 40 and the like which are apparatuses and the diagnosis control unit 101 and the like which are programs are drawn as classes, and “charging process”, “charging time acquisition process” and the like executed in the class are illustrated. , “Charge ()” and “Charge time acquisition ()”. In FIG. 3, “+” in a block corresponding to each class indicates that a plurality of classes can be executed, and “−” indicates that a process cannot be executed from another class. Show.

  Prior to the start of charging by the charging device 10, the charging unit 14 and the battery 21 of the charging vehicle 50 are connected by a dedicated cable, and the in-vehicle LAN communication unit 16 is connected to the in-vehicle LAN 25 of the charging vehicle 50 by a dedicated cable. . Then, the charging control unit 120 acquires the remaining battery level from the battery ECU 22 of the charging vehicle 50 via the in-vehicle LAN 25, and calculates the charging time based on the remaining battery level.

  Note that the charging control unit 120 may acquire the charging time detected by the ECU from the battery ECU 22. In addition, the charging time is not specified by the information obtained via the in-vehicle LAN 25, but the voltage of the battery 21 is detected via the charging unit 14, and the remaining battery level is estimated based on the voltage. The charging time may be calculated from the amount.

Thereafter, the charging control unit 120 executes a charging process (S205), and charging of the battery 21 by the charging unit 14 is started.
When charging is started, the diagnosis control unit 101 executes a vehicle information acquisition process for acquiring vehicle information indicating the model, identification information, vehicle state, and the like of the charging vehicle 50 (S210). Thus, the diagnosis execution unit 102 acquires vehicle information by communicating with each ECU configuring the in-vehicle system 20 of the charging vehicle 50, and the vehicle information is provided to the diagnosis control unit 101.

  Further, the diagnosis control unit 101 executes a charging time acquisition process for acquiring the charging time from the charging control unit 120 (S215), and further acquires diagnostic information corresponding to the model of the charging vehicle 50 to the diagnostic information management unit 103. Diagnostic information acquisition processing for instructing is executed (S220).

  In the diagnosis information management unit 103 instructed to acquire the diagnosis information, whether or not the diagnosis information corresponding to the model of the charging vehicle 50 is registered in the diagnosis information DB 104 and that the diagnosis information corresponding to the model has been updated. Whether or not the notification is received from the server 40 is determined. When the diagnostic information is not registered in the diagnostic information DB 104 or when the notification is received, the diagnostic information corresponding to the model of the charging vehicle 50 is acquired from the server 40 to the communication unit 110. The instructed diagnostic information inquiry transmission request process is executed (S225).

  And the communication part 110 instruct | indicated acquisition of the diagnostic information from the server 40 performs the diagnostic information inquiry process which instruct | indicates the transmission of the diagnostic information corresponding to the model of the charging vehicle 50 to the server 40 (S230).

  In the server 40 instructed to transmit diagnostic information, the control unit 41 reads diagnostic information corresponding to the model of the charging vehicle 50 from the diagnostic information DB 44, and transmits the diagnostic information to the charging device 10 (S235).

  Thereafter, the communication unit 110 passes the diagnostic information received from the server 40 to the diagnostic information management unit 103 (S240), and the diagnostic information management unit 103 that has received the diagnostic information transmits the diagnostic information and the model of the charging vehicle 50. A diagnostic information DB update process is executed (S245), which is registered in the diagnostic information DB 104 (or updates diagnostic information corresponding to the already registered type). Then, the diagnosis information management unit 103 passes the diagnosis information to the diagnosis control unit 101 (S250).

  If the diagnostic information corresponding to the model of the charging vehicle 50 has already been registered in the diagnostic information DB 104 and no notification has been received from the server 40 that the diagnostic information corresponding to the model has been updated, the diagnostic information The management unit 103 reads diagnostic information corresponding to the model from the diagnostic information DB 104 and passes the diagnostic information to the diagnostic control unit 101.

  Then, the diagnosis control unit 101 that has received the diagnosis information selects any of the diagnosis information according to the vehicle state of the charging vehicle 50 so that the failure diagnosis can be completed within the charging time. Is executed (S255). Details of the diagnostic information selection process will be described later.

  Thereafter, the diagnosis control unit 101 executes a diagnosis execution process for causing the diagnosis execution unit 102 to perform a failure diagnosis according to the selected diagnosis information (S260). In response to this, the diagnosis execution unit 102 selects the selected diagnosis. According to the information, failure diagnosis of the charging vehicle 50 is performed by communicating with the ECU configuring the in-vehicle system 20 of the charging vehicle 50 (S265). In the case of failure diagnosis, the diagnosis result by the self-diagnosis performed by the ECU, the execution result of the diagnosis process performed by the ECU according to the instruction from the diagnosis execution unit 102, and the failure code detected in the past by the ECU And the operation information are transmitted from the charging vehicle 50 (specifically, the ECU mounted on the charging vehicle 50) to the diagnosis execution unit 102 (S270). The diagnosis execution unit 102 performs a failure diagnosis of the charging vehicle 50 based on the execution result of the diagnosis process, the failure code, and the operation state, and the diagnosis result by the failure diagnosis and the diagnosis result by the self-diagnosis of the ECU are displayed as the diagnosis control unit. 101 is passed (S275).

  The diagnosis control unit 101 that has received the diagnosis result executes a diagnosis result display process in which the display control unit 130 displays the diagnosis result (S280). The method for notifying the driver of the diagnosis result is not limited to this. For example, the diagnosis control unit 101 may notify the diagnosis result by voice. Further, for example, data for displaying the diagnosis result may be generated by a PC or the like, and the data may be transmitted to the mail address of the driver of the charging vehicle 50 by e-mail to notify the diagnosis result.

  Although not shown in FIG. 4, the diagnosis control unit 101 thereafter executes a diagnosis result transmission request process (see FIG. 3), and passes the diagnosis result and identification information of the charging vehicle 50 to the communication unit 110. . And the communication part 110 which received the diagnostic result etc. transmits these to the server 40 by performing a diagnostic result update process (refer FIG. 3), and the identification information and diagnostic result of the charging vehicle 50 are sent to diagnostic result DB45. sign up.

  Next, diagnostic information selection processing for selecting diagnostic information corresponding to the vehicle state of the charging vehicle 50 out of the diagnostic information corresponding to the model of the charging vehicle 50 so that the failure diagnosis is completed within the charging time will be described.

  As already described, in the present embodiment, one or a plurality of diagnostic information is provided for each model of the charging vehicle 50, and a condition for performing a fault diagnosis according to the diagnostic information as part of each diagnostic information. Attribute information indicating such as is provided.

  In FIG. 5A, as an example, a table showing a configuration of attribute information for each diagnosis information provided corresponding to the charging vehicle 50 of the type A is described, and each item of the table includes an attribute Each piece of information constituting the information is shown. As shown in the table, the attribute information is in accordance with the “diagnostic information ID” for identifying the diagnostic information, the “implementation condition” that is the condition for selecting the diagnostic information in the diagnostic information selection process, and the diagnostic information. The information is composed of information such as “required time” indicating the time required for failure diagnosis and “priority” indicating the priority when selecting diagnosis information. The lower the numerical value indicated by “priority”, the higher the priority.

  Further, in the present embodiment, a plurality of basic conditions that are commonly used as “implementation conditions” in the attribute information for the diagnostic information corresponding to each type are provided. The table in FIG. 5B shows these basic conditions, and the table has items of “basic condition ID” for identifying each basic condition and “content” indicating the contents of each basic condition. ing.

  The “implementation condition” in the attribute information indicates a condition under which diagnostic information is selected by any one basic condition or a combination of a plurality of basic conditions. Specifically, in the table of FIG. 5A, regarding the attribute information whose “diagnostic information ID” is “2”, the diagnostic information is selected as “implementation condition” by “satisfaction of basic condition A”. For the attribute information whose “diagnostic information ID” is “1”, “implementation condition” indicates that diagnostic information is selected by “satisfaction of basic condition B or basic condition E”. Yes. Of course, the present invention is not limited to this. For example, “satisfaction of basic condition A and basic condition C” may be set as “implementation condition”, “satisfaction of basic condition A and basic condition C, or basic condition B The implementation condition may be configured by a combination of three or more basic conditions.

Next, the specific contents of the diagnostic information selection process will be described using the flowchart shown in FIG.
In S <b> 305, the diagnosis control unit 101 determines whether or not the determination about the “execution condition” has been made for all diagnosis information corresponding to the model of the charging vehicle 50. If the determination is affirmative (S305: Yes), the process proceeds to S325. If the determination is negative (S305: No), any diagnostic information that has not been determined is selected, and the process proceeds to S310. To migrate.

  In S310, the diagnosis control unit 101 determines whether or not the “execution condition” for the currently selected diagnosis information is established based on the vehicle state of the charging vehicle 50 indicated by the vehicle information. If the determination is affirmative (S310: Yes), the process proceeds to S315. If the determination is negative (S310: No), the process proceeds to S320.

In S315, the diagnosis control unit 101 registers the selected diagnosis information in the preliminary list, and the process proceeds to S305.
In S320, the diagnosis control unit 101 invalidates the currently selected diagnosis information, and proceeds to S305.

  On the other hand, in S325 that is shifted to when the determination about the establishment of the “execution condition” is made for all diagnosis information, the diagnosis control unit 101 sorts the diagnosis information registered in the preliminary list in the order of “priority” of each diagnosis information. Then, the process proceeds to S330.

In S330, the diagnosis control unit 101 registers the diagnosis information having the highest “priority” in the implementation list, and the process proceeds to S335.
In S335, the diagnosis control unit 101 calculates the sum of “required time” of all the diagnosis information registered in the implementation list as the total required time when the failure diagnosis based on the diagnosis information is performed, and in S340. Migrate processing.

  In S340, the diagnosis control unit 101 determines whether or not the total required time is equal to or less than the charging time of the charging vehicle 50. If the determination is affirmative (S340: Yes), the process proceeds to S345, and a negative determination is made. In the case of (S340: No), the process proceeds to S355.

In S345, the diagnosis control unit 101 deletes the diagnosis information newly registered in the implementation list from the preliminary list, and the process proceeds to S350.
In S350, the diagnosis control unit 101 determines whether there is diagnostic information registered in the preliminary list. If the determination is affirmative (S350: Yes), the process proceeds to S330, and the determination is negative. (S350: No), this process is terminated.

  On the other hand, in S355 to which the process proceeds when the total time required for failure diagnosis exceeds the charging time, the diagnosis control unit 101 determines whether each diagnosis information registered in the implementation list is diagnosis information with high “priority”. Determine. Specifically, for example, when the “priority” of the diagnostic information last registered in the implementation list is a predetermined value or less, it is determined that the “priority” of each diagnostic information registered in the implementation list is high. You may do it. If the determination is affirmative (S355: Yes), the process proceeds to S360. If the determination is negative (S355: No), the process proceeds to S370.

  In S360, the diagnosis control unit 101 inquires of the user via the display control unit 130 whether or not to perform a failure diagnosis in which the required time exceeds the charging time. When an instruction to perform the failure diagnosis is received from the user via an operation unit (not shown) (S365: Yes), this processing ends, and an instruction to perform the failure diagnosis is not received. (S365: No), the process proceeds to S370.

In S370, the diagnosis control unit 101 deletes the last registered diagnosis information from the implementation list, and ends this process.
Note that the diagnostic information registered in the implementation list by this processing is diagnostic information used for failure diagnosis by the diagnostic execution unit 102.

[effect]
According to the charging device 10 of the present embodiment, since the failure diagnosis of the charging vehicle 50 is performed every time the battery 21 of the charging vehicle 50 is charged, the failure diagnosis is performed at a frequency according to the travel distance of the charging vehicle 50 and the like. It is possible to detect failure at an early stage. Moreover, since this failure diagnosis is performed within the charging time of the battery 21 of the charging vehicle 50, the driver and the passenger of the charging vehicle 50 do not have time for failure diagnosis.

Therefore, according to the charging device 10 of the present embodiment, the failure of the charging vehicle 50 can be detected at an early stage without causing the driver or passengers to wait.
[Other Embodiments]
(1) The charging device 10 of this embodiment is connected to the in-vehicle LAN 25 of the charging vehicle 50 by a dedicated cable, and performs a fault diagnosis of the charging vehicle 50 by communicating with the ECU through the in-vehicle LAN 25. However, for example, any ECU constituting the in-vehicle system 20 of the charging vehicle 50 may be configured as a failure diagnosis ECU that instructs other ECUs to perform failure diagnosis. Then, the charging device 10 performs wireless communication with the failure diagnosis ECU, causes the failure diagnosis ECU to perform the failure diagnosis in the same manner as the present embodiment, and acquires the diagnosis result and the like from the failure diagnosis ECU. A failure diagnosis of the charging vehicle 50 may be performed. By doing so, the trouble of connecting the charging device 10 and the in-vehicle LAN 25 with a dedicated cable can be saved, and the failure diagnosis of the charging vehicle 50 can be performed more easily.

  (2) Moreover, in this embodiment, although the diagnostic information is provided for every model of the charging vehicle 50, it is not limited to this. Specifically, for example, diagnostic information may be provided for each manufacturer of the charging vehicle 50, or diagnostic information may be provided for each group of a plurality of types. Even in such a case, the same effect can be obtained.

  (3) In the present embodiment, the charging device 10 selects diagnosis information so that the failure diagnosis is completed within the charging time. However, the charging apparatus 10 may perform failure diagnosis according to diagnosis information provided without considering the charging time, for example, and may interrupt the failure diagnosis when the charging time has elapsed. Even if it has such a structure, the same effect can be acquired.

[Correspondence with Claims]
The correspondence between the terms used in the description of the above embodiment and the terms used in the description of the claims is shown.

The server communication unit 15 of the charging device 10 corresponds to the charging device side communication means.
In addition, the diagnosis control unit 101 in the program for controlling the charging device 10 is the selection unit, the diagnosis execution unit 102 is the failure diagnosis unit, the state detection unit, and the vehicle type detection unit, and the communication unit 110 and the diagnostic information management unit 103 are the acquisition unit. In addition, the charging control unit 120 corresponds to a charging time detecting unit.

  Further, the control unit 41 of the server 40 corresponds to a transmission unit, and the communication unit 43 corresponds to a server side communication unit.

  DESCRIPTION OF SYMBOLS 10 ... Charging apparatus, 11 ... Control part, 12 ... Memory | storage part, 13 ... Display part, 14 ... Charging part, 15 ... Server communication part, 16 ... In-vehicle LAN communication part, 20 ... In-vehicle system, 21 ... Battery, 22 ... Battery ECU, 23 ... AECU, 24 ... BECU, 25 ... In-vehicle LAN, 30 ... Internet, 40 ... Server, 41 ... Control unit, 42 ... Storage unit, 43 ... Communication unit, 44 ... Diagnostic information DB, 45 ... Diagnostic result DB, DESCRIPTION OF SYMBOLS 50 ... Charging vehicle, 100 ... Fault diagnosis part, 101 ... Diagnosis control part, 102 ... Diagnosis execution part, 103 ... Diagnosis information management part, 104 ... Diagnosis information DB, 110 ... Communication part, 120 ... Charge control part, 130 ... Display Control unit.

Claims (2)

A charging device that charges a battery mounted as a power source of the motor on a vehicle traveling by a motor from the outside of the vehicle,
Charging time detecting means for detecting a charging time which is a time required for charging the battery;
Failure diagnosis of the vehicle is performed by communicating with an in-vehicle device mounted on the vehicle being charged within a charging period from the start of charging the battery until the charging time elapses. Fault diagnosis means for performing
Vehicle type detection means for detecting the type of the vehicle;
Charging device side communication means for communicating with an externally installed server;
Obtaining means for obtaining diagnostic information, which is information relating to the procedure of the failure diagnosis according to the type of the vehicle detected by the vehicle type detecting means, from the server via the charging device side communication means;
With
The failure diagnosis means performs the failure diagnosis according to the type of the vehicle to be charged in accordance with the diagnosis information acquired by the acquisition means within the charging period,
The acquisition means acquires, from the server, a plurality of pieces of diagnostic information having different contents for the specific type of vehicle,
The charging device is:
State detecting means for detecting the state of the vehicle;
A selection unit that selects one or a plurality of the diagnostic information according to the state of the vehicle detected by the state detection unit from among the plurality of the diagnostic information about the type of the vehicle acquired by the acquisition unit;
Further comprising
The failure diagnosis means performs the failure diagnosis according to the diagnosis information selected by the selection means within the charging period,
Each diagnosis information is set with a priority and a time required for the failure diagnosis performed according to the diagnosis information.
The selection means is further configured to set the priority set in a range in which a total sum of the set required times is equal to or less than the charging time from the diagnostic information selected according to a state of the vehicle to be charged. Selecting the diagnostic information in descending order of
A charging device. A charging device that charges a battery mounted as a power source of the motor on a vehicle traveling by a motor from the outside of the vehicle,
Charging time detecting means for detecting a charging time which is a time required for charging the battery;
Failure diagnosis of the vehicle is performed by communicating with an in-vehicle device mounted on the vehicle being charged within a charging period from the start of charging the battery until the charging time elapses. Fault diagnosis means for performing
Charging device side communication means for communicating with an externally installed server;
Information relating to the procedure of the failure diagnosis from the server via the charging device side communication means, wherein the failure diagnosis is performed according to the information and the time required for the failure diagnosis is set. A plurality of acquisition means;
A selection unit that selects the diagnostic information within a range in which a total of the set required times is equal to or less than the charging time from among the plurality of diagnostic information acquired by the acquisition unit;
With
The failure diagnosis means performs the failure diagnosis according to the diagnosis information selected by the selection means within the charging period;
A charging device.