JP5806914B2 - Charger verification device and moving body simulator - Google Patents

Description

  The present invention relates to a charger verification device that verifies whether or not a charger for DC charging of a battery mounted on a mobile body meets a standard, and displays and outputs data, and a mobile body included in the charger verification device It relates to a simulation device.

When the charger charges a moving body (hereinafter simply referred to as a moving body) including a drive mechanism by an electric motor such as a motor, for example, an in-vehicle battery of an electric vehicle,
(1) When the power supply cable of the charger and the electric vehicle are connected by a connector and the charging start button of the charger is pressed, a control signal is output from the charger to the electric vehicle, and it is The car is notified,
(2) When the electric vehicle is notified that it is connected to the charger, it starts communication from the electric vehicle to the charger, and is notified to the charger that it is connected to the electric vehicle.
(3) Commenced communication from the charger to the electric vehicle,
(4) The electric vehicle notifies the charger that charging is possible,
(5) The charger checks the insulation of the DC power line that sends the charging current,
(6) After the insulation confirmation is completed, a control signal is transmitted from the charger to the electric vehicle to notify the electric vehicle that the charger is ready for charging.
(7) The electric vehicle turns on the charging relay, connects the charger to the vehicle battery,
(8) The electric vehicle notifies the charger of the charging current command value,
(9) The charger causes the charging current to flow according to the notified charging current command value.

  In this way, the charger supplies the charging current to the in-vehicle battery and charges it while communicating with each other via the signal line with the electric vehicle.

  The charger is manufactured so as to conform to a charging method that is a predetermined standard, for example, a CHAdeMO method specification. The manufactured charger is tested before it is shipped in accordance with the CHAdeMO method specification.

  In order to check the charging sequence of the charger in the absence of an actual vehicle, it is necessary to prepare a vehicle simulation device that simulates the sequence of the vehicle with respect to the charger.

  In a conventional vehicle simulation device, a vehicle-mounted battery is simulated using a DC power supply and a resistance load that can be switched and connected to a DC power supply line. The DC power supply is switched and connected to the DC power supply line before the charging relay is turned on, and simulates the voltage of the on-vehicle battery before charging with respect to the charger when the charging relay is turned on. The charger recognizes that the charging relay is turned on by detecting this voltage.

  At the time of charging, a command value for charging current to the charger is set in the vehicle simulation device. On the other hand, the resistance load is switched and connected to the DC power supply line, and the DC output from the charger is consumed by the resistance load.

  In the conventional charger verification device using such a vehicle simulation device, a signal (CAN (Controller Area Network) signal and control signal in the CHAdeMO method) communicated between the charger and the vehicle simulation device, and a resistance The DC voltage / DC current applied to the load is observed simultaneously. For this reason, a CAN signal analyzer, an oscilloscope, and a voltmeter / ammeter are connected to the vehicle simulation device, and the observation data is printed out at the same time, and it is verified whether the charging sequence is executed according to the specification.

  In the conventional vehicle simulation device, since the DC output from the charger is consumed by the resistance load, there is a problem that the power consumption is large. In addition, the resistance value of the resistive load needs to be changed depending on the voltage / current / condition of the simulated vehicle battery. This change has the inconvenience of having to be made manually. Furthermore, there is an inconvenience that the setting of the charging current command value to the charger must be input each time.

  Also, with the conventional charger verification device, it is difficult to simultaneously check the data even if the data individually observed by the CAN signal analyzer, the oscilloscope, and the voltmeter / ammeter are printed out. Therefore, there is a problem that it takes time to test whether or not it conforms to a specification such as the CHAdeMO method.

  Such a problem may occur not only in electric vehicles but also in moving bodies such as hybrid vehicles, electric scooters, electric locomotives, and electric motor boats.

  An object of the present invention is to provide a mobile simulation apparatus that can reduce power consumption without using a resistive load and that can set a command for a charging current in advance.

  Another object of the present invention is to provide a charger verification device that enables verification in a short time while ensuring simultaneous collection of data and simultaneous output of data.

The moving body simulator of the present invention is
A mobile body simulation device that converts alternating current of an alternating current power source into direct current, is connected to a charger that charges a battery mounted on the mobile body , and simulates a sequence of the mobile body with respect to the charger,
A DC power supply line through which a charging current output from the charger flows;
A signal line through which various signals communicated with the charger flow;
A relay inserted into the DC power supply line to simulate a charging relay of a moving body, which is one of the various signals on the signal line, which is turned on / off by a signal from the charger;
A regenerative load unit having a reversible DC / AC converter that simulates the on-board battery, and a DC side terminal of the DC / AC converter being connected to the relay;
A control unit that is connected to the signal line, communicates with the charger, controls the regenerative load unit, and executes a simulation sequence of a moving body with respect to the charger;
A data collection unit for collecting the measured voltage value and current value on the DC power supply line and the various signals on the signal line as data;
The AC side terminal of the DC / AC converter is connected to the AC power source,
The DC / AC converter is
Before the relay is turned on, the alternating current of the alternating current power supply is converted into direct current and the direct current voltage is output to the direct current side terminal, and the voltage of the on-board battery before charging is simulated,
After the relay is turned on, the direct current from the charger is converted into alternating current, the direct current voltage of the direct current side terminal simulates the voltage of the mounted battery at the time of charging, and the converted alternating current is converted from the alternating current side terminal to the Regenerate to AC power source.

The charger verification device of the present invention is
The moving body simulator;
A control processing device connected to the control unit and the data collection unit of the moving body simulator,
The control processing device includes:
To the control unit of the mobile simulation device, set the parameter,
The response timing of the charging sequence of the charger is determined based on the data collected by the data collection unit when the simulation sequence of the moving body for the charger is completed, which is executed according to the set parameters. Test whether or not it meets the criteria, and display the test result in tabular form.

  According to the moving body simulation apparatus of the present invention, the DC output of the charger is converted into the AC output by the regenerative load unit using the reversible DC / AC converter, and is regenerated to the AC input power source of the charger. Therefore, less power consumption is required.

  Moreover, according to the mobile body simulation device of the present invention, since the charging current command pattern is set in advance, the charging current of the charger can follow the command pattern.

  The charger verification device of the present invention performs the charger verification by simultaneously collecting data during the simulation sequence operation of the mobile object simulation device, analyzing the collected data, and comparing the collected data with the reference, and the verification result. Is displayed and output, so that the test can be performed in a short time.

  In addition, according to the charger verification device of the present invention, data can be output and displayed simultaneously, so verification results can be verified.

It is a block diagram which shows the basic composition of the charger verification apparatus of this invention. It is a block diagram which shows the structure of a reversible type | mold AC / DC converter. It is a figure which shows the rough operation | movement flow of a charger verification apparatus. It is a figure which shows the charger verification apparatus which comprised the control processing apparatus with the personal computer. It is a figure which shows the connection sequence circuit of the charger defined by a CHAdeMO system, and an electric vehicle. It is a figure which shows the connection sequence circuit of the charger defined by a CHAdeMO system, and a charger verification device. It is a figure which shows a simulation operation | movement pattern. It is a figure which shows the flow of simulation operation | movement. It is a figure which shows the flow of simulation operation | movement. It is a figure which shows the list of CAN communication data. It is a figure which shows a timing chart. It is a figure which shows the simulation operation | movement sequence when a failure generate | occur | produces. It is a figure which shows the simulation operation | movement sequence when a failure generate | occur | produces.

  In the following embodiments, a case where the moving body is an electric vehicle will be described as a representative example.

[Basic configuration of charger verification device]
As shown in FIG. 1, a charger verification device 20 that verifies a charger 10 that is a subject to be tested includes a vehicle simulation device 30 and a control processing device 40.

  Hereinafter, each of the charger 10, the vehicle simulation device 30, and the control processing device 40 will be described.

(Charger)
The charger 10 includes a power unit 102 that converts alternating current of the alternating current power supply 50 into direct current, and a sequence control unit 104 that controls the power unit 102.

  The power supply connector 60 a at the tip of the power supply cable 106 extending from the charger 10 is connected to the power reception connector 60 b of the vehicle simulation device 30. The power supply cable 106 includes a DC power supply line 110 and a signal line 112.

  The DC power supply line 110 is a line that supplies a DC output from the power unit 102 of the charger 10 to the in-vehicle battery.

  The signal line 112 is a line that transmits and receives signals communicated between the charger 10 and the vehicle. In the figure, the signal line 112 is shown as a single line, but does not physically indicate a single signal line, but is used as a collective term for a plurality of signal lines. In the CHAdeMO system, the signal line includes a CAN (Controller Area Network) signal line and a control signal line.

  Charging starts when the charging start button 114 of the charger 10 is turned on. If it is desired to stop charging during charging, the charging stop button 116 is turned on.

(Vehicle simulation device)
The vehicle simulation device 30 is a device that simulates the sequence of the vehicle with respect to the charger 10 in order to check the charging sequence of the charger 10 in the absence of an actual vehicle.

  The vehicle simulation device 30 is provided with a power receiving connector 60 b coupled to the power feeding connector 60 a of the power feeding cable 106. A DC power supply line 310 and a signal line 312 of the vehicle simulation device 30 extend from the power receiving connector 60b.

  Similarly to the signal line 112 on the charger 10 side, the signal line 312 does not physically indicate one signal line, but is used as a general term for a plurality of signal lines. In the CHAdeMO system, the signal line includes a CAN signal line and a control signal line.

  When the power feeding connector 60a of the power feeding cable 106 is coupled to the power receiving connector 60b, the DC power supply line 110 and the signal line 112 on the charger 10 side are connected to the DC power supply line 310 and the signal line 312 on the vehicle simulator 30 side. Is done.

  The vehicle simulation device 30 further includes a charging relay 314, a regenerative load unit 320, a control unit 330, a measurement unit 340, and a data collection unit 350.

Charging relay The charging relay 314 is inserted into the DC power supply line 310 and simulates a charging relay of a vehicle.

-Regenerative load unit The regenerative load unit 320 is connected to the charging relay 314 and simulates a vehicle battery. The regenerative load unit 320 includes an AC / DC converter (hereinafter referred to as a reversible AC / DC converter) 322 capable of reversibly converting AC and DC, and sequence control for controlling operations of the reversible AC / DC converter 322. Part 324.

  FIG. 2 shows a configuration of the reversible AC / DC converter 322. As shown in FIG. 2, the reversible AC / DC converter 322 includes a chopper circuit 12, a direct current / direct current / conversion circuit 13, and an inverter / rectifier 14. The inverter / rectifier 14 is composed of one element, and switching between the inverter operation and the rectifier operation is performed under the control of the sequence control unit 324.

  The DC side terminal 17 of the reversible AC / DC converter 322 is connected to the charging relay 314, and the AC side terminal 18 is connected to the AC power supply 50.

Control Unit The control unit 330 controls the regenerative load unit 320 and communicates with the sequence control unit 104 of the charger 10 via the signal line 312 to simulate the vehicle sequence.

  In order to simulate the vehicle sequence with respect to the charger 10, the simulated operation pattern, the charging current command pattern, and the voltage command pattern set by the control processing device 40 are input to the control unit 330 of the vehicle simulation device 30. .

  The control unit 330 further inputs an operation / stop signal to the regenerative load unit 320.

  The control unit 330 includes at least an A / D converter 332, a processing unit 334, and a memory 336. Such a control unit 330 is realized by a microcomputer. Therefore, the control unit 330 can control the regenerative load unit 320 in a programmable manner.

  The A / D converter 332 A / D converts the current value and voltage value (analog signal) on the DC power supply line 310 from the measurement unit 340 into a digital signal and sends the digital signal to the processing unit 334. The processing unit 334 communicates with the charger 10 and the control processing device 40 and controls the regenerative load unit 320.

Data Collection Unit The data collection unit 350 collects the signal on the signal line 312 and the voltage value and current value on the DC power supply line 310 as data. For this purpose, the signal line 312 is connected to the data collection unit 350, and the DC power supply line 310 is connected to the data collection unit 350 via the measurement line 316 and the measurement unit 340. The voltage value is taken out by connecting the measurement line 316 to the DC power supply line 310, and the current value is taken out by connecting the transformer 318 provided in the DC power supply line 310 to the measurement line 316.

  The data collection unit 350 includes at least an A / D converter 352, a processing unit 354, and a memory 356. Such a data collection unit 350 is realized by a microcomputer.

  The A / D converter 352 performs A / D conversion on the current value and voltage value on the DC power supply line 310 that have passed through the measurement unit 340, and sends them to the processing unit 354. The digital signal on the signal line 312 is sent to the processing unit 354. The digital signal sent to the processing unit 354 is classified by the processing unit 354 and stored in the memory 356 as data.

  Data stored in the memory 356 is read from the memory 356 and transferred to the control processing device 40 during execution of the simulation sequence.

Measurement Unit The measurement unit 340 insulates between the DC power supply line 310 and the data collection unit 350 and sends a current value and a voltage value to the data collection unit 350 and the control unit 330.

(Control processing device)
The control processing device 40 includes a control unit 402, a memory 404, a parameter file 406, a parameter setting unit 408, a verification unit 410, a display processing unit 412, an input unit 414, and an output unit 416.

  Such a control processing device 40 is realized by a personal computer. In this case, each function of the control unit 402, the parameter setting unit 408, the verification unit 410, and the display processing unit 412 is realized by a program executed by the CPU.

Control Unit The control unit 402 communicates with the control unit 330 of the vehicle simulation device 30 in order to control the simulation sequence operation of the vehicle simulation device 30.

  The control unit 402 also communicates with the data collection unit 350 and stores data transferred from the data collection unit 350 in the memory 404.

  The control unit 402 also controls operations of the parameter setting unit 408, the verification unit 410, and the display processing unit 412.

Memory The memory 404 stores the collected data from the data collection unit 350, the verification result of the verification unit 410, and the program executed by the CPU.

Parameter file In the parameter file 406, a simulated operation pattern, a charging current command pattern, and a voltage command pattern are described in advance.

  The simulated operation pattern is a pattern that simulates the response sequence of the vehicle with respect to the charger.

  The charging current command pattern is a pattern of charging current commanded to the charger, and is determined by the current command value and time information.

  The voltage command pattern is a pattern that simulates the voltage at the time of charging the in-vehicle battery, and is determined by the voltage command value and time information.

  These parameters are created by program processing in the control processing device 40. However, the parameter creation method is not a feature of the present invention, and a description thereof will be omitted.

  The parameter file 406 is actually created in the memory 404.

Parameter setting unit The parameter setting unit 408 selects a simulated operation pattern, a charging current command pattern, and a voltage command pattern from the parameter file 406 according to a selection instruction from the input unit 414, and sends it to the control unit 330 of the vehicle simulation device 30. Set. The set parameters are stored in the memory 336 of the control unit 330.

  The parameter setting unit 408 can change the parameter selected from the file 406 according to an instruction from the input unit 414.

-Verification unit The verification unit 410 is based on the response timing of the charging sequence of the charger 10 after the simulation operation is completed based on the data collected and transferred by the data collection unit 350 during the simulation operation of the vehicle simulation device 30. And whether or not the measured voltage and current values are within the accuracy defined by the standard. The test result is stored in the memory 404.

  Therefore, a reference is input to the test unit 410 in advance. Such a standard may be a specification of the CHAdeMO system or a standard uniquely defined by the user.

Display Processing Unit The display processing unit 412 reads the test result from the memory 404, creates it in a table format, and displays it on the output unit 416. Further, the collected data is selected and read from the memory 404, and a timing chart with a common time axis is created. The timing chart can be displayed almost in real time during the simulation sequence operation or after the simulation sequence is completed.

Output unit The output unit 416 outputs and displays the timing chart and table formed by the display processing unit 412.

Input unit The input unit 414 inputs various instructions to the control unit 402.

  The control processing device 40 configured as described above is realized by a personal computer as described above. Each function of the control unit 402, the parameter setting unit 408, the verification unit 410, and the display processing unit 412 is realized by a program executed by the CPU. The input unit 414 is, for example, a keyboard, and the output unit 416 is, for example, a display and a printer.

[Basic operation of charger verification device]
The basic operation of the charger verification device 20 of FIG. 1 will be described according to the schematic operation flow shown in FIG.

(parameter settings)
The operator of the charger verification device 20 connects the power supply connector 60 a of the charger 10 to the power reception connector 60 b of the vehicle simulation device 30.

  The operator instructs the control unit 402 to select parameters (simulated operation pattern, charging current command pattern, voltage command pattern) from the input unit 414 of the control processing device 40 and presses the test start button (step S1). Here, the start of verification means the start of a series of operations including the following simulated sequence operation and verification operation. The test start button is one key on the keyboard that is the input unit 414.

  The control unit 402 instructs the parameter setting unit 408 to set the selected parameter.

The parameter setting unit 408 acquires parameters from the parameter file 406 and sets them in the control unit 330 of the vehicle simulation device 30. The set parameters are stored in the memory 336.

(Simulated sequence operation)
The processing unit 334 of the control unit 330 of the vehicle simulation device 30 puts the regenerative load unit 320 into an operating state according to the set charging current command pattern and voltage command pattern.

In the reversible AC / DC converter 322 of the regenerative load unit 320, the inverter / rectifier 14 is switched by the sequence control unit 324. The control unit 330 determines the magnitude relationship between the voltage command value of the voltage command pattern and the measurement voltage value from the measurement unit 340, and instructs the sequence control unit 324 according to the determination result.
Rectifier operation when voltage command value ≥ measured voltage value Inverter operation when voltage command value <measured voltage value

  Subsequently, the operator turns on the charging start button 114 of the charger 10 (step S2). When the charge start button 114 is turned on, the control unit 330 of the vehicle simulation device 30 is notified that the charge start button 114 is turned on, and the simulation sequence operation is started (step S3).

  After the charging start button 114 is turned on, the sequence control unit 324 of the regenerative load unit 320 switches the inverter / rectifier 14 of the reversible AC / DC converter 322 to the rectifier operation because the voltage command value ≧ the measured voltage value. The alternating current from the alternating current power supply 50 is converted into direct current by the inverter / rectifier 14, the direct current / direct current / conversion circuit 13, and the chopper circuit 12, and a direct current voltage is output to the direct current side terminal 17. This DC voltage simulates the voltage of the on-vehicle battery before charging.

  Communication is started via the signal lines 112 and 312 between the sequence control unit 104 of the charger 10 and the control unit 330 of the vehicle simulation device 30.

  The control unit 330 of the vehicle simulation device 30 notifies the charge permission to the sequence control unit 104 of the charger 10 via the signal lines 312 and 112.

  After the insulation test, the charger 10 notifies the control unit 330 of the vehicle simulation device 30 that charging preparation is complete via the signal lines 112 and 312.

  The control unit 330 of the vehicle simulation device 30 recognizes the completion of charging preparation of the charger 10 and turns on the charging relay 314. As a result, the DC voltage of the reversible AC / DC converter 322 is applied to the power unit 102 of the charger 10 via the DC power supply lines 110 and 310, and the sequence control unit 104 of the charger 10 turns on the charging relay 314. recognize.

  The control unit 330 of the vehicle simulation device 30 reads the charging current command pattern from the memory 336 and notifies the sequence control unit 104 of the charger 10 via the signal lines 312 and 112. On the other hand, the control unit 330 reads the voltage command pattern from the memory 336 and notifies the sequence command unit 324 of the regenerative load unit 320 of the voltage command pattern.

  The power unit 102 of the charger 10 generates a charging current according to the charging current command pattern according to the control of the sequence control unit 104. The charging current is supplied to the reversible AC / DC converter 322 of the regenerative load unit 320 via the DC power supply lines 110 and 310. The sequence control unit 324 of the regenerative load unit 320 switches the inverter / rectifier 14 of the reversible AC / DC converter 322 to the inverter operation because the voltage command value <measured voltage value.

  The reversible AC / DC converter 322 draws a charging current that is a direct current, and converts the direct current into alternating current by the chopper circuit 12, the direct current / direct current / conversion circuit 13, and the inverter / rectifier 14. At this time, the voltage of the DC side terminal 17 of the reversible AC / DC converter 322 is held at the voltage command value of the voltage command pattern. That is, constant voltage control is performed. Thereby, the voltage of the vehicle-mounted battery at the time of charge is simulated. The converted AC is regenerated from the AC side terminal 18 to the AC power source 50.

  During the simulation sequence operation, the signal on the signal line 312 is collected as data in the data collecting unit 350, and the measured voltage value and measured current value on the DC power supply line 310 are collected through the measuring unit 340. The data is collected in the unit 350 (step S4).

  In the data collection unit 350, the A / D converter 352 A / D converts the voltage value and current value on the DC power supply line 310 and sends them to the processing unit 354. The digital signal on the signal line 312 is sent to the processing unit 354 without passing through the A / D converter 352. The processing unit 354 sorts each data, and stores each data in the memory 356.

  The data collection unit 350 transfers the data stored in the memory 356 to the control unit 402 of the control processing device 40 during the simulation sequence operation. The transferred data is stored in the memory 404.

  When all the simulation sequence operations of the vehicle simulation device 30 are completed (step S5), the control unit 330 of the simulation device 30 puts the regenerative load unit 320 into an operation stop state.

  The control unit 402 of the control processing device 40 instructs the verification unit 410 to perform verification. The verification unit 410 reads data from the memory 404, performs data analysis, and performs verification (step S6).

  Based on the data analysis, a verification point time corresponding to a management time that the charging sequence of the charger 10 defined by the standard must comply with is obtained. The verification point time is defined as the time from a specific step of the charging sequence of the charger 10 to a specific step.

  By comparing the analyzed verification point time with the management time (hereinafter referred to as verification management time) determined by the standard, it is verified whether the charging sequence of the charger 10 meets the standard. The control result shown is notified to the control unit 402. The test result is stored in the memory 404.

  The verification unit 410 further verifies whether or not the error of the measured voltage value and current value is within the accuracy determined by the reference, and notifies the control unit 402 of the verification result indicating pass / fail. The test result is stored in the memory 404.

(Display operation)
The display that is the output unit 416 of the control processing device 40 includes not only a table showing the test results, but also a timing chart for verifying the test results, a timing chart for checking the simulated sequence operation, a log message during the simulated sequence operation, and the like Is displayed.

Test Result Report The control unit 402 of the control processing device 40 causes the display processing unit 412 to create test results in a table format (step S7). The tabular test result report created by the display processing unit 412 is displayed on the display of the output unit 414 (step S8). The operator can check the test result on the display. Further, it can be output to the printer of the output unit 416.

Data timing chart for verifying the test result The operator may want to verify the data generation timing or the data status from the test result. For this reason, the control unit 402 of the control processing device 40 selects and reads out data to be verified from the memory 404 and sends it to the display processing unit 412. The display processing unit 412 creates each data in a timing chart having a common time axis (step S7) and displays it on the output unit 416 (step S8). It can also be output to a printer.

Display of Data in Table Format for Verifying Test Results After the simulation operation is completed, the operator can display the data in a tabular format on the output unit 416 in order to verify the test results (steps S7 and S8).

Data timing chart for confirming the simulation sequence operation In order to confirm the progress of the simulation sequence operation during the simulation sequence operation, predetermined data is read from the memory 356 of the data collection unit 350, and the control processor 40 The data is sent to the display processing unit 412. The display processing unit 412 can also create each data in a timing chart with a common time axis and display it on the display (steps S7 and S8). As a result, the operator can simultaneously confirm the status of data during the simulation sequence.

Log Message Display During the simulation operation, a log message communicated from the vehicle simulation device 30 to the control processing device 40 is sent to the control unit 402 of the control processing device 40 and displayed on the output unit 416. The operator can check the operation of the simulation sequence one by one by looking at the displayed log message.

  The above display is representative and is not limited to these. Data can be processed to create and display various tables and timing charts necessary for verification. Furthermore, the implemented simulated operation pattern may be displayed.

  Hereinafter, an embodiment of the charger verification apparatus when the charging method standard is the CHAdeMO method specification will be described. Note that the CHAdeMO system specification defines a quick charger that performs charging in, for example, several tens of minutes. This example shows an example of the embodiment and is not intended to limit the present invention to a quick charger.

  FIG. 4 is an example in which the control processing device 40 of FIG. 1 is configured by a personal computer (hereinafter referred to as a personal computer). The same components as those in FIG. 1 are denoted by the same reference numerals.

  The AC power supply 50 of the charger 10 is a commercial three-phase 200V AC power supply.

  Moreover, the charging system of the charger 10 shall be a constant current charging system. That is, the charging current is output according to the charging current command pattern commanded from the vehicle simulation device 30.

  The personal computer 420 includes a personal computer main body 422, a keyboard 424, a display 426, and a printer 428.

  Signal lines 112 and 312 that connect the sequence control unit 104 of the charger 10 and the control unit 330 of the vehicle simulation device 30 are CAN signal lines 112a and 312a that transmit CAN communication information (hereinafter referred to as a CAN signal), It is composed of control signal lines 112b and 312b for transmitting signals (hereinafter referred to as control signals) for operating a sequence circuit described later.

  The CAN signal includes a numerical value, a status flag, and a failure flag according to the CHAdeMO system specification. The numerical value is numerical data such as a charging current command value, a current output current value, and a current output voltage value. The state flag is, for example, a flag indicating that the charging is permitted (vehicle charging is possible), and charging permission is set to “1” and charging prohibition is set to “0”. The failure flag is a flag indicating, for example, a status flag (battery overvoltage) indicating the voltage status of the in-vehicle battery, and is set to “1” when abnormal and “0” when normal.

  The CAN signal line 312a and the control signal line 312b are each connected to the data collection unit 350 of the vehicle simulation device 30.

  Further, a DC power supply line 310 is connected to the data collection unit 350 via a measurement line 316 and a measurement unit 340.

  The personal computer 420 is connected to the control unit 330 and the data collection unit 350 of the vehicle simulation device 30 via serial communication lines 317 and 318, respectively.

  According to the CHAdeMO system specification, sequence circuits 108 and 338 are provided on the charger side and the vehicle side, respectively. FIG. 5 shows a sequence circuit defined by the CHAdeMO system specification.

  As shown in FIG. 5, the sequence circuit 108 on the charger side includes switches d1 and d2 and a photocoupler j.

  The sequence circuit 338 on the vehicle side includes photocouplers f, g, h, and a switch k.

  The charging relay c (same as the charging relay 314 in FIG. 1) includes a coil switch e. When the switch e is turned on / off, the charging relay c is turned on / off. 4 and 5, reference symbol i indicates a relay coil.

  The sequence circuit 108 is provided in the sequence control unit 104 of the charger 10.

  In the charger verification device 20 of the present embodiment, a sequence circuit 338 is provided in the control unit 330 of the vehicle simulation device 30 as shown in FIG.

  Since the data collection unit 350 needs to collect the control signal, the sequence circuit 358 including the photocoupler corresponding to 1: 1 for each of the switch e, the photocouplers f and g, and the switch k is provided in the data collection unit 350. Provided. FIG. 6 is a sequence circuit diagram showing the sequence circuits 108, 338, and 358.

  In FIG. 6, in the sequence circuit 338 of the control unit 330, the photocouplers f and g are denoted by f1 and g1, and the switch k is denoted by k1.

  In the sequence circuit 358 of the data acquisition unit 350, e2, f2, g2, and k2 indicate photocouplers corresponding to 1: 1 for the switch e, the photocouplers f1 and g1, and the switch k1, respectively.

  As shown in FIG. 4, the sequence circuits 108, 338, and 358 and the switch e are connected to each other through a control signal line 312b. Therefore, collecting the control signal on the control signal line 312b only needs to collect the on / off information of the photocoupler of the sequence circuit 358 of the data acquisition unit 350.

  Hereinafter, the operation of the charger verification device 20 of the present embodiment will be described by dividing it into a simulated operation, an operation of a regenerative load unit, an operation of a data collection unit, an verification operation, and the like.

(Simulated operation)
The operator of the charger verification device 20 connects the power supply connector 60 a of the charger 10 to the power reception connector 60 b of the vehicle simulation device 30.

  The operator instructs selection of parameters (simulated operation pattern, charging current command pattern, voltage command pattern) from the keyboard 424 in the personal computer 420. The personal computer 420 sets the selected parameter in the control unit 330 of the vehicle simulation device 30.

  The simulated operation pattern simulates the response sequence of the vehicle, and seven types of patterns shown in FIG. 7 are prepared depending on the stop element, the situation, and the conditions.

Pattern 1 is a pattern that shifts to stop when the charging of the vehicle is completed.
Pattern 2 is a pattern for shifting to stop when the charging time is up or the stop button is pressed. The stop means a stop by pressing the charge stop button 116 on the charger that stops the simulation operation.
Pattern 3 is a pattern that shifts to stop when a vehicle abnormality occurs before the start of charging.
Pattern 4 is a pattern that shifts to stop when a charger abnormality occurs before the start of charging.
Pattern 5 is a pattern that shifts to stop when a vehicle abnormality occurs during charging.
Pattern 6 is a pattern for shifting to a stop when a charger abnormality occurs during charging.
Pattern 7 is a pattern in which the charger times out due to a delay in vehicle response and shifts to stop.

  The vehicle abnormality before the start of charging is, for example, an abnormality in which the vehicle battery voltage is not applied to the DC power supply line before the start of charging.

  The charger abnormality before the start of charging is, for example, an abnormality that occurs inside the charger.

  Vehicle abnormalities during charging are, for example, abnormalities that reach the lower limit voltage of the in-vehicle battery during charging (battery shortage voltage), abnormalities that reach the upper limit of the in-vehicle battery temperature during charging (battery temperature high), and the shift lever position during charging An abnormality that is changed to a movable position of the vehicle (vehicle shift position), an abnormality that a CAN signal is not sent from the charger during charging (vehicle or other malfunction), and the like.

  Charger abnormalities during charging include, for example, abnormalities that reach the upper limit voltage of the on-vehicle battery during charging (battery overvoltage), abnormalities that the charger output does not follow the charging current command value (battery current difference), current charger status An abnormality in which the output voltage value is different from the battery voltage of the vehicle (voltage difference), or an abnormality that reaches the upper temperature limit of the in-vehicle battery during charging (battery temperature high).

  Timeout means that the charger determines that an abnormality has occurred in the vehicle when an excessive delay occurs in the vehicle response and there is no vehicle response within the timeout time.

  In patterns 1 to 6, the response timing on the vehicle side to the sequence operation of the charger is a sequence if the response timings of all sequences that the vehicle side must comply with are within the time defined in the specifications (standard specifications). It is arbitrarily set every 0.1 seconds (arbitrary setting). This is because the vehicle is manufactured within the specification range and the response timing is different for each manufacturer, so that the verification device can be adapted to various vehicles.

  About the vehicle abnormality of the patterns 3 and 5, the kind and generation timing of abnormality can be determined and included in the pattern.

  In pattern 7, the sequence response time of the vehicle simulation device that generates a timeout of the charger is set to exceed the timeout time of the charger.

  The simulated operation pattern as described above is determined by the vehicle simulation sequence and response timing.

  In actual verification, the simulated operation pattern 1 is always executed, but execution of the simulated operation patterns 2 to 7 is left to the operator's judgment.

  An example of the pattern 1 will be described in a simulation sequence operation described later.

The charging current command pattern includes time information and a current command value. An example of the charging current command pattern is shown in Table 1.

The voltage command pattern includes time information and a voltage command value. An example of the voltage command pattern is shown in Table 2.

  The simulated operation pattern, the charging current command pattern, and the voltage command pattern described above are created by program processing in the personal computer 420 and stored in a file.

  The processing unit 334 of the control unit 330 of the vehicle simulation device 30 performs simulation of the vehicle corresponding to the charger and simulation of the vehicle battery according to the simulation operation pattern, the charging current command pattern, and the voltage command pattern sent from the personal computer 420. Do.

  Simulated operation when pattern 1 (pattern for shifting to stop when vehicle charging is completed) is set as the simulated operation pattern will be described below with reference to the flowcharts shown in FIGS. 8A and 8B. The response sequence of the vehicle simulation device 30 shown in FIGS. 8A and 8B represents the simulated operation pattern 1.

  When the operator presses the charging start button 114 of the charger 10, the switch d1 is turned on.

  When the switch d1 is turned on, the photocoupler f1 of the sequence circuit 338 of the control unit 330 of the vehicle simulation device 30 and the photocoupler f2 of the sequence circuit 358 of the data collection unit 350 are turned on via the control signal lines 112b and 312b. The processing unit 334 of the control unit 330 recognizes that the photocoupler f1 is turned on.

  The processing unit 334 of the control unit 330 starts transmission of a CAN signal to the sequence control unit 104 of the charger 10 via the CAN signal lines 312a and 112a.

  When the sequence control unit 104 of the charger 10 recognizes the CAN signal transmission start of the vehicle simulation device 30, the sequence control unit 104 starts transmission of the CAN signal to the control unit 330 of the vehicle simulation device 30.

  When the processing unit 334 of the control unit 330 recognizes the CAN signal from the charger 10, the processing unit 334 turns on the switch k1 of the sequence circuit 338. When the switch k1 is turned on, charging is permitted. When the switch k1 is turned on, the photocoupler j of the sequence circuit 108 of the charger 10 and the photocoupler k2 of the sequence circuit 358 of the data acquisition unit 350 are turned on via the control signal lines 112b and 312b. At the same time, the processing unit 334 of the control unit 330 notifies the sequence control unit 104 of the charger 10 of a state flag (vehicle chargeable flag) “1” indicating permission of charging by a CAN signal.

  The sequence control unit 104 of the charger 10 recognizes the charging permission by turning on the photocoupler j of the sequence circuit 108 and the vehicle chargeable flag “1”.

  When the sequence control unit 104 of the charger 10 confirms that the power feeding connector 60a is locked to the power receiving connector 60b, the sequence control unit 104 notifies the processing unit 334 of the control unit 330 of the vehicle simulation device 30 of the connector lock by the CAN signal.

  Subsequently, the sequence control unit 104 of the charger 10 performs an insulation diagnosis of the charging cable 106. If the result of the insulation diagnosis is good, the switch d2 is turned on. When the switch d2 is turned on, the charger 10 is in a chargeable state.

  When the switch d2 is turned on, the photocoupler g1 of the sequence circuit 338 of the control unit 330 of the vehicle simulation device 30 and the photocoupler g2 of the sequence circuit 358 of the data collection unit 350 are turned on via the control signal line 312b.

  When recognizing that the photocoupler g1 is turned on, the processing unit 334 of the control unit 330 turns on the switch e after a predetermined time has elapsed. As a result, the charging relay c is turned on. At the same time, when the switch e is turned on, the photocoupler e2 of the sequence circuit 358 of the data acquisition unit 350 is turned on.

  When the charging relay c is turned on, the power unit 102 of the charger 10 is connected to the reversible AC / DC converter 322 of the regenerative load unit 320 via the DC power supply lines 110 and 310. The power unit 102 of the charger 10 recognizes that the charging relay c is turned on by detecting the DC voltage output of the AC / DC converter 322.

  When a predetermined time elapses after the charging relay c is turned on, the processing unit 334 of the control unit 330 starts a command of a charging current command pattern by a CAN signal to the sequence control unit 104 of the charger 10. This charging current command pattern is read from memory 336.

  The power unit 102 of the charger 10 is controlled by the sequence control unit 104 and starts outputting the charging current following the charging current command pattern.

  At this time, the sequence control unit 104 of the charger 10 notifies the current output voltage value and the current output current value to the control unit 330 of the vehicle simulation device 30 by a CAN signal.

  As will be described later, the charging current is absorbed by the AC / DC converter 322 of the regenerative load unit 320 that simulates the vehicle battery.

  The processing unit 334 of the control unit 330 of the vehicle simulation device 30 notifies the end of charging to the sequence control unit 104 of the charger 10 by a CAN signal, and then turns off the switch k1 of the sequence circuit 338. When the switch k1 is turned off, charging is prohibited. When the switch k1 is turned off, the photocoupler j of the sequence circuit 108 of the charger 10 and the photocoupler k2 of the sequence circuit 358 of the data acquisition unit 350 are turned off via the control signal lines 112b and 312b. At the same time, the processing unit 334 of the control unit 330 notifies the sequence control unit 104 of the charger 10 of a state flag “0” indicating charging prohibition by a CAN signal.

  When the switch k1 is turned off, the photocoupler j of the sequence circuit 108 of the charger 10 is turned off via the control signal lines 312b and 112b.

  The sequence control unit 104 of the charger 10 recognizes that charging is prohibited by turning off the photocoupler j and the state flag (vehicle chargeable flag) “0”.

  When confirming that the charging current is 5 A or less, the sequence control unit 104 notifies the control unit 330 of the vehicle simulation device 30 by a CAN signal.

  When recognizing that the charging current is 5 A or less, the processing unit 334 of the control unit 330 turns off the switch e and turns off the charging relay c, assuming that no relay welding occurs.

  Subsequently, the sequence control unit 104 of the charger 10 turns off the switches d1 and d2 of the sequence circuit 108.

  When the switches d1 and d2 are turned off, the photocouplers f1 and g1 of the sequence circuit 338 of the control unit 330 of the vehicle simulation device 30 are turned off via the control signal lines 112b and 312b.

  The sequence control unit 104 of the charger 10 confirms that the output voltage of the power unit 102 is 10 V or less.

  If the voltage is 10 V or less, the connector contact is not welded, and the sequence control unit 104 of the charger 10 releases the connector lock and notifies the control unit 330 of the vehicle simulation device 30 of the connector lock release by a CAN signal. .

  When recognizing the connector lock release, the processing unit 334 of the control unit 330 notifies the sequence control unit 104 of the charger 10 of the end of CAN communication by a CAN signal.

  When the sequence control unit 104 recognizes the end of communication of the CAN signal from the vehicle simulation device 30, the sequence control unit 104 ends communication of the CAN signal.

  In the above simulation operation, the communication from the vehicle simulation device 30 to the personal computer 420 has not been described. However, as shown in the flowcharts of FIGS. 8A and 8B, each operation of the vehicle simulation device 30 and the charger 10 is performed. The personal computer 420 is notified and displayed on the display 426 as a log message.

  The CAN signal includes the CAN signal indicating the numerical value, the status flag, and the failure flag shown in FIG. 9 in addition to the signals described above. The total battery capacity, the battery strength upper limit value, the maximum charging time, the remaining battery capacity, and the charging voltage upper limit value transmitted from the verification device 20 to the charger 10 are data necessary for vehicle simulation, and are stored in the memory 336 of the control unit 330. Are set in advance.

(Operation of regenerative load unit)
The simulation operation of the on-vehicle battery by the regenerative load unit 320 during the simulation operation will be described.

  The regenerative load unit 320 is put into an operating state by the processing unit 334 of the control unit 330 of the vehicle simulation device 30. At this time, the processing unit 334 of the control unit 330 compares the measured voltage value from the measuring unit 340 with the voltage command value set in the memory 336. Since the voltage command value ≧ measured voltage value before the start of charging, the control unit 330 instructs the sequence control unit 324 of the regenerative load unit 320 so that the reversible AC / DC converter 322 converts alternating current into direct current. To work.

  Under the control of the sequence control unit 324, the reversible AC / DC converter 322 rectifies the three-phase AC 200V of the AC power supply 50 by the inverter / rectifier 14, insulates and boosts it by the DC / DC / converter circuit 13, and the chopper circuit 12 Is converted to DC 400V, and DC 400V is output to the DC terminal 17.

  Thereafter, when the switch e is turned on and the charging relay c is turned on, the power unit 102 of the charger 10 is connected to the DC side terminal 17 of the reversible AC / DC converter 322 of the regenerative load unit 320 via the DC power supply lines 110 and 310. Connected to.

  DC 400V is applied to the power unit 102 of the charger 10, whereby the sequence control unit 104 of the charger 10 recognizes that the charging relay c is turned on.

  As described above, after the charging relay c is turned on, the charging current command pattern is sent from the control unit 330 of the vehicle simulation device 30 to the sequence control unit 104 of the charger 10 by the CAN signal. The charger 10 supplies a charging current to the reversible AC / DC converter 322 according to the charging current command pattern.

  On the other hand, after the charging relay c is turned on, a voltage command pattern is instructed from the processing unit 334 of the control unit 330 to the sequence control unit 324 of the regenerative load unit 320. The voltage command pattern is for constant voltage control of the reversible AC / DC converter 322, and the voltage command value of the voltage command pattern is set to 300 to 400V that is the battery voltage of the on-vehicle battery.

  At this time, the processing unit 334 of the control unit 330 compares the measured voltage value from the measuring unit 340 with the voltage command value set in the memory 336. Since the voltage command value <measured voltage value after starting charging, the control unit 330 instructs the sequence control unit 324 of the regenerative load unit 320 so that the reversible AC / DC converter 322 converts direct current to alternating current. To work.

  The reversible AC / DC converter 322 boosts the DC output of the charger 10 by the chopper circuit 12, insulates / steps down the voltage by the DC / DC / converter circuit 13, and converts the DC / DC converter 3 into AC of three-phase 200 V by the inverter / rectifier 14. By this conversion from DC to AC, the charging current from the charger 10 is absorbed by the reversible AC / DC converter 322. At this time, the voltage of the DC side terminal 17 of the reversible AC / DC converter 322 is held at the voltage value commanded by the voltage command pattern, and simulates the voltage of the on-vehicle battery during charging. That is, the reversible AC / DC converter 322 simulates the battery voltage with the voltage value of the commanded voltage command pattern.

  The three-phase alternating current converted by the reversible AC / DC converter 322 is regenerated to the three-phase alternating current power supply 50 of the commercial system. Thus, since the DC output of the charger 10 is regenerated to the AC input of the charger 10 by the regenerative load unit 320, the power consumption can be reduced.

  When the charging relay c is turned off, the control unit 330 issues a stop command to the sequence control unit 324 to stop the operation of the regenerative load unit 320.

  As described above, the reversible AC / DC converter 322 is basically constant voltage control. However, it may be switched to the constant current control in preparation for a case where an excessive charging current is erroneously supplied from the charger 10. In this case, the charge current command pattern is also instructed to the sequence control unit of the regenerative load unit. Constant current control is performed by this charging current command pattern.

(Data collection unit operation)
From the start to the end of the simulation operation, a signal (digital) on the CAN signal line 312a, a signal (digital) on the control signal line 312b, a voltage value and an electric current value (analog) on the DC power supply line 310 are converted into a data collection unit 350. To collect. The voltage value and current value on the DC power supply line 310 are collected by the data collection unit 350 from the measurement line 316 through the measurement unit 340.

  The signal on the control signal line 312b can be collected by detecting the on / off states of the photocouplers e2, f2, g2, and k2 of the sequence circuit 358 of the data collection unit 350.

  The on / off state of the photocoupler e2 indicates the on / off state of the charging relay c. The on / off state of the photocoupler f2 indicates the on / off state of the switch d1 of the charger 10. The on / off state of the photocoupler g2 indicates the on / off state of the switch d2 of the charger 10. On / off of the photocoupler k2 indicates charging permission / charging prohibition.

  Of the collected data, the digital signal is sampled every 10 ms by the processing unit 354 and stored in the memory 356. On the other hand, the analog signal is sampled every 10 ms by the A / D converter 352, converted into a digital signal, sent to the processing unit 354, and stored in the memory 356.

(Verification operation)
The personal computer 420 stores the data transferred during the simulation operation in the memory. When the simulation operation ends, the personal computer 420 notifies the data collection unit 350 of the vehicle simulation device 30 of the completion of the verification operation. There are multiple types of data. Predetermined data is selected from a plurality of types of data, read from the memory, and analyzed.

  The data analysis is performed by analyzing a specified value of the management time that must be observed by the charging sequence of the charger 10 defined in the charging method specification and the corresponding verification point time.

  By comparing the analyzed verification point time with the management time of the charging method specification (hereinafter referred to as verification management time), it is verified whether or not it conforms to the specification, and the verification result indicating pass / fail is stored in the memory.

For example, according to the specifications of CHAdeMO, test point times and test management times as shown in Table 3 are determined.

For example, when the time from detection of DC current 5 A or less to switch d1 OFF must be 4000 ms to 4200 ms,
No if the test point time is 3990 ms,
If the test point time is 4000 ms,
If the test point time is 4200ms,
No if the test point time is 4210 ms,
No if the verification point time is -10 ms.

  According to the present embodiment, charging current allowable error (error of measured current value with respect to charging current command value), measurement error (error between measured current value and current output current value, measured voltage value and current output voltage value) Error) can also be performed.

For example, according to the specification of CHAdeMO, the charging current allowable error and the reference value of the measurement error are determined as shown in Table 4. If it is within the reference value, the determination is good.

  In Table 4, the current output current value and the current output voltage value are numerical data sent from the charger 10 to the vehicle simulation device 30 by the CAN signal after the charger 10 starts charging output.

The pass / fail judgment is, for example,
If the charging current command value is 20 A, the measured current value is 19.81 A,
If the charging current command value is 50A, the measured current value is 50.19A,
If the charge current command value is 60 A, the measured current value is 60.00 A,
If the charging current command value is 125 A, the measured current value is 125.38 A,
If the measured current value is 125 A, the current output current value is 124.90 A.

(Display processing operation)
Display processing on the display 426 of the personal computer 420 will be described during and after the simulated sequence operation.

Display / timing chart on display during simulation sequence operation Predetermined data is selected from a plurality of types of data stored in the memory, read out at a cycle of 100 mS, and a timing chart with a common time axis is created. Display. The operator can visually confirm the sequence during the simulated operation simultaneously with such a timing chart.

Log message A log message communicated from the vehicle simulation device 30 to the personal computer 420 is displayed on the display 426. The operator can check the operation of the simulation sequence one by one by looking at the displayed log message.

Display / Test Result Report on Display after Simulation Sequence Operation The test result of the charging sequence response timing of the charger 10, the charging current allowable error, and the measurement error test result are displayed in a table format. Thereby, the operator can confirm the test result.

Implemented Simulated Operation Pattern The simulated operation pattern set by the personal computer 420 is displayed on the display 426. The operator can confirm the simulated operation pattern being performed on the display.

• Timing chart The operator may want to check the situation by looking at the test results. For example, the test result is “good”, but the signal status at a delicate timing is checked to see what happens when the parameter is changed. Alternatively, the behavior of the voltage and current is verified. Further, when the test result is “No”, the situation is verified.

  In such a case, predetermined data is selected and read out from a plurality of types of data stored in the memory, a timing chart having a common time axis is created, and displayed on the display 426.

  As an example, the on / off state of the photocoupler f2 (corresponding to the on / off state of the switch d1), the on / off state of the photocoupler g2 (corresponding to the on / off state of the switch d2), and the on / off state of the photocoupler k State (corresponding to the on / off state of the photocoupler j), on / off state of the charging relay c (corresponding to the on / off state of the switch e2), connector locked state (from lock to release), CAN on the vehicle simulation device side Timing chart that displays the communication status (from CAN communication start to end), the CAN communication status on the charger side (from CAN communication start to end), the DC voltage and DC voltage of the DC power supply line with the same time axis, As shown in FIG.

-Value of display item at cursor position on timing chart For example, the cursor is moved to the DC voltage in FIG. 10 to display the voltage value at the cursor position. Thereby, it can be confirmed how many volts of voltage were measured at which time.

-Verification point time expansion chart For example, in FIG. 10, the verification point time from the start of the vehicle CAN communication to the start of the charger CAN communication is displayed in an enlarged manner.

-Relative time confirmation timing chart For example, in FIG. 10, two cursors are moved, and the relative time between the cursors is confirmed.

(Data output / save processing)
The table or chart displayed on the display 426 can also be output by the printer 428. All data can be saved in a file and retrieved when needed.

  In the above embodiment, the simulation operation sequence ends normally when the vehicle charging is completed (pattern 1). However, as an example of the case where the battery charger abnormally ends during charging (pattern 6), the battery overvoltage (charging) FIG. 11A and FIG. 11B show a simulation operation sequence when the upper limit voltage of the on-vehicle battery is reached.

  According to this simulation operation sequence, only the “battery overvoltage generation” step is inserted before the “charge end” step in the simulation sequence of FIG. 8B, and the other steps are the same.

  The vehicle simulation device 30 notifies the sequence control unit 104 of the charger 10 of the occurrence of battery overvoltage using a CAN signal. The processing unit 334 of the control unit 330 of the vehicle simulation device 30 notifies the end of charging to the sequence control unit 104 of the charger 10 by a CAN signal. The subsequent sequence is the same as FIG. 8B.

DESCRIPTION OF SYMBOLS 10 Charger 12 Chopper circuit 13 DC / DC conversion circuit 14 Inverter / rectifier 20 Charger verification device 30 Vehicle simulation device 40 Control processing device 50 AC power supply 60a Power supply connector 60b Power reception connector 102 Power unit 104 Sequence control unit 106 Power supply cable 110, 310 DC power line 112, 312 signal line 114 charge start button 116 charge stop button 316 measurement line 320 regenerative load unit 322 reversible AC / DC converter 324 sequence control unit 330 control unit 340 measurement unit 350 data collection unit 402 control unit 404 memory 406 Parameter file 408 Parameter setting section 410 Test section 412 Display processing section 414 Input section 416 Output section 420 Personal computer 422 Personal computer body 4 4 keyboard 426 display 428 printer

Claims (6)

A mobile body simulation device that converts alternating current of an alternating current power source into direct current, is connected to a charger that charges a battery mounted on the mobile body , and simulates a sequence of the mobile body with respect to the charger,
A DC power supply line through which a charging current output from the charger flows;
A signal line through which various signals communicated with the charger flow;
A relay inserted into the DC power supply line to simulate a charging relay of a moving body, which is one of the various signals on the signal line, which is turned on / off by a signal from the charger;
A regenerative load unit having a reversible DC / AC converter that simulates the on-board battery, and a DC side terminal of the DC / AC converter being connected to the relay;
A control unit that is connected to the signal line, communicates with the charger, controls the regenerative load unit, and executes a simulation sequence of a moving body with respect to the charger;
A data collection unit for collecting the measured voltage value and current value on the DC power supply line and the various signals on the signal line as data;
The AC side terminal of the DC / AC converter is connected to the AC power source,
The DC / AC converter is
Before the relay is turned on, the alternating current of the alternating current power supply is converted into direct current and the direct current voltage is output to the direct current side terminal, and the voltage of the on-board battery before charging is simulated,
After the relay is turned on, the direct current from the charger is converted into alternating current, the direct current voltage of the direct current side terminal simulates the voltage of the mounted battery at the time of charging, and the converted alternating current is converted from the alternating current side terminal to the A mobile simulator that regenerates to AC power.   The mobile unit simulation device according to claim 1, wherein the control unit executes a simulation sequence of the mobile unit for the charger according to a preset parameter. The parameter is
Simulated operation pattern that simulates the response sequence of the moving body to the charger;
A charging current command pattern that is given to the charger via the signal line and indicates a charging current output from the charger;
A voltage command pattern that is given to the regenerative load unit, indicates a voltage at a DC side terminal of the DC / AC / converter of the regenerative load unit, and simulates a voltage at the time of charging the on-board battery;
The moving body simulator according to claim 2 including at least. The moving body simulator according to claim 3;
A control processing device connected to the control unit and the data collection unit of the moving body simulator,
The control processing device includes:
To the control unit of the mobile simulation device, set the parameter,
The response timing of the charging sequence of the charger is determined based on the data collected by the data collection unit when the simulation sequence of the moving body for the charger is completed, which is executed according to the set parameters. Test whether it meets the criteria of, and display the test result in tabular format,
Charger verification device.   5. The charging according to claim 4, wherein the control processing device verifies whether an error in the measured voltage value and current value conforms to a predetermined standard, and displays and outputs the verification result in a table format. Instrument verification device.   The control processing device is configured to store data selected from the data collected by the data collection unit at one or both of execution and termination of a moving body simulation sequence for the charger. The charger verification device according to claim 5, wherein display and output is performed in the form of:

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