JP2013094048A - Portable inspection device for vehicular charging apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable inspection device with which whether or not a vehicular charging apparatus installed at each spot is operated normally can be confirmed without using a real vehicle.SOLUTION: A portable body 10 includes: a charging connector connection section 11 simulating a vehicle-side charging port; and an electric circuit which is connected with a CPLT signal line when a charging connector is connected to the charging connector connection section, and simulates a vehicle-side charging permission. Switch means for dealing with a vehicle with a different mode may also be provided.

Description

  The present invention is used to check whether or not a vehicle charging device installed in various places for charging a vehicle equipped with an in-vehicle battery such as a plug-in hybrid car or an electric vehicle operates normally. The present invention relates to a portable inspection device for a vehicle charging device.

  In a standard system related to a vehicle equipped with an in-vehicle battery, mode 1 and mode 2 are set as the type of vehicle. A vehicle in mode 1 is of a type that starts charging immediately after being connected to a charging connector of a vehicle charging device and supplied with power. On the other hand, the vehicle in mode 2 also has a charge control circuit on the vehicle side. When the charge connector of the vehicle charging device is connected to the charging port on the vehicle side, a charge control signal (CPLT signal) is sent from the vehicle charging device. Upon receiving this signal, the vehicle-side charging control circuit changes the voltage or the like to transmit the connection state to the vehicle charging device, and starts charging after exchanging these signals. This point is disclosed in Patent Document 1.

  At present, since many vehicles are in mode 2, most of the vehicle charging devices are compatible with mode 2 vehicles. The operation of the vehicle charging device is confirmed at the time of shipment from the factory, but it is necessary to confirm the operation of the vehicle charging device even after installation. Moreover, since it is installed outdoors for a long time, it is necessary to regularly check whether it operates normally also from a viewpoint of safety. For this purpose, the vehicle charging device must be actually connected to the mode 2 vehicle to check whether or not the exchange of the CPLT signal is normally performed. However, there has been a problem that the operation confirmation using an actual vehicle takes time and effort such as vehicle movement.

JP 2009-71899 A

Therefore, the object of the present invention is to solve the above-mentioned conventional problems, and to check whether or not the vehicle charging device installed in each place operates normally without using an actual vehicle. Is to provide a device.
In addition, the prior document regarding the portable inspection device of the charging device for vehicles was not found in the range investigated by the applicant.

  In order to solve the above problems, a portable inspection device for a vehicle charging device according to the present invention includes a portable main body, a charging connector connecting portion simulating a charging port on the vehicle side, and the charging connector connecting portion. When a charging connector is connected to the battery, an electric circuit that is connected to the CPLT signal line and simulates charging permission on the vehicle side is provided.

  As in claim 2, the main body can be provided with switching means for simulating the transition from the charging cable connected state to the charging permission state. According to another aspect of the present invention, a switching means for connecting to a test resistor or a diode for simulating vehicle compatibility in mode 2 can be provided in the main body. Further, as in claim 4, the main body can be provided with a switching means for invalidating the connection to the electric circuit. Further, as in claim 5, the main body is energized and de-energized. It is possible to adopt a structure provided with switching means.

  In addition, it can be set as the structure provided with the earth-leakage test apparatus which connects the ground wire drawn in the main-body part via the charge connector, and the simulation electric circuit, and simulates an electric leakage like Claim 6. Further, as in claim 7, a current measuring means for measuring the simulated leakage current can be provided, and as in claim 8, a structure including a current changing means for changing the simulated leakage current value in the leakage test apparatus, can do.

  The portable inspection device for a charging device for a vehicle according to the present invention connects the charging connector of the charging device for the vehicle to the charging connector connecting portion, so that the electric circuit simulates the charging permission on the vehicle side, and the charging device for the vehicle Can be operated. Therefore, it is possible to inspect whether or not the vehicle charging device operates normally without using an actual vehicle. Since the inspection apparatus of the present invention is portable, it is possible to easily inspect vehicle charging apparatuses installed in various places. In addition, various inspections can be performed by using the configuration of claim 2 and the following, and a mode 1 vehicle can also be inspected.

  In addition, as a standard system for vehicle charging devices, an earth leakage protection device with a built-in earth leakage breaker called CCID and an earth leakage breaker is provided as ground-side equipment. The current leakage protection mechanism is provided inside the vehicle charging device, and whether or not this leakage interruption mechanism operates normally inside the vehicle charging device. A structure including an operation unit for earth leakage test for confirming whether or not is widely used. However, the conventional earth leakage test operation unit does not simulate the occurrence of earth leakage in the actual circuit. Does the earth leakage breaker function normally by using a dedicated test circuit to generate a pseudo earth leakage state? It is a judgment of whether or not. Specifically, as shown in FIG. 7, when the test button 23 is pressed, the phase balance of the primary current of the ZCT 24 is broken, and an electromotive force is generated on the secondary side, and the operation test of the leakage breaker mechanism 25 is performed. Therefore, even if the leakage test is normal, the leakage breaker 4 is pulled in the actual circuit due to other factors (for example, the grounding resistance (class D grounding) is not an appropriate value (standard value)). There is a problem that the leakage prevention device 26 may not operate normally without being removed. On the other hand, according to the invention of claim 6, it is possible to simulate the occurrence of electric leakage in the actual electric circuit formed by connecting the ground wire drawn into the main body via the charging connector and the simulated electric circuit. Therefore, more accurate determination can be performed.

  Furthermore, as described in claim 7, by providing the current measuring means for measuring the simulated leakage current, it is possible to identify even the cause of the leakage interruption function.

1 is a schematic external view showing an embodiment of the present invention. It is a charging circuit diagram with the charging device for vehicles and the vehicle of mode 2. FIG. It is a voltage waveform figure of a CPLT signal. 1 is a circuit configuration diagram of a portable inspection device according to Embodiment 1. FIG. It is a principal part enlarged view of FIG. It is a circuit block diagram of the portable inspection apparatus of Embodiment 2. It is explanatory drawing of the conventional electrical leakage test apparatus. It is explanatory drawing of a three-phase 3 line. It is a flowchart of a leak test.

  An embodiment of the present invention will be described below. First, a procedure for charging the vehicle 2 in mode 2 from the vehicle charging device 1 will be described with reference to FIGS. 2 and 3.

  In a state where the charging connector of the vehicle charging device 1 is not connected to the charging port on the vehicle side, the CPLT signal remains 12V as shown in FIG. However, when the charging connector is connected to the charging port on the vehicle side, the voltage is divided by the resistor r2 built in the vehicle side control circuit 3, and the CPLT signal is lowered to 9V. The charging control device 5 of the vehicular charging device 1 detects that the connection to the mode 2 vehicle 2 has been made due to this voltage drop, and the pulse output circuit 6 oscillates the CPLT signal to make the oscillation state of 9V. At this time, the lower end voltage of the pulse is maintained at −12 V due to the presence of the diode 7.

  When the vehicle-side control circuit 3 detects this 9V oscillation state, it turns on the charge permission switch 8. Then, the CPLT signal changes to 6 V oscillation due to the resistance voltage division of the resistor r3, and the preparation for charging is completed. When the charging control device 5 of the vehicular charging device 1 detects this 6V oscillation, it outputs an ON signal to the switch 9 and a charging current flows through the charging circuit to start charging the in-vehicle battery 4. Since the CPLT signal changes in this way, the portable inspection apparatus of the present invention has a circuit configuration that simulates the same voltage change.

(Embodiment 1)
The configuration of the portable inspection apparatus according to the first embodiment will be described below.
As shown in FIG. 1, reference numeral 10 denotes a portable main body, on its surface a charging connector connecting portion 11 simulating a vehicle-side charging port, various switching means (switches) S1 to S5, and a CPLT voltage. A measurement terminal 12, a 200V measurement terminal 13, and an energization display lamp 14 are provided. An electric circuit that simulates charging permission on the vehicle side is provided on the substrate inside the main body 10 as shown in FIG. The electric circuit will be described below. As shown in FIG. 4, the charging connector connecting portion 11 includes five connecting pins a to e corresponding to the five pins of the charging connector. In FIG. 5, the switching means S1 to S4 are also displayed on the electric circuit for explanation.

  Connection pins a and b corresponding to the power supply line are connected to a simulated load R4 shown in FIG. Switching means S5 is provided between the connection pin b and the simulated load R4, and can be switched between energization / non-energization for a voltage application of 200V. An energization indicator lamp 14 is connected in parallel between the connection pins a and b and the switching means S5. When performing a test assuming a vehicle in mode 1, whether or not a voltage of 200 V is applied to the power line after pressing the start button B of the vehicle charging device 1 can be confirmed by the energization display lamp 14. In addition, it can be detected by applying a tester or the like to the 200 V measurement terminal 13. Furthermore, the operation of the vehicle charging device 1 can be confirmed by actually flowing a charging current through the load circuit.

  The CPLT signal line of the connection pin d is connected to the test resistors R1, R2, and R3 via the switching means S1, as shown in FIGS. These test resistors are connected in parallel, and the test resistor R1 simulates the connection between the vehicle and the charging connector. A test resistor R2 connected in parallel with R1 when the switching means S2 is closed mimics the charging permission state of the vehicle. The test resistor R3 connected in parallel with R1 and R2 when the switching means S3 is closed mimics the connection state with a lead-acid battery-equipped vehicle that requires ventilation during charging.

  Accordingly, the switching means S1 has a function of switching connection or disconnection with the mode 2 vehicle. Since the vehicle-side control circuit 3 does not exist in the mode 1 vehicle, the connection with the mode 1 vehicle can be simulated by turning off the switching means S1. The switching unit S2 has a function of mimicking the charge permission state as described above. The switching means S3 simulates the connection state with a vehicle equipped with a lead storage battery that requires ventilation. The switching means S4 selects the connection with the diode 15 connected in series therewith, and this diode 15 corresponds to the diode 7 described above.

Next, a method for using the portable inspection apparatus according to the first embodiment will be described.
When the vehicle charging device 1 checks the function of charging the vehicle in mode 2, first, the switching means S1 is closed, and the charging connector of the vehicle charging device 1 is connected to the charging connector connecting portion 11. Note that since the diode in the mode 2 vehicle is provided with the diode 7, the switching means S4 is opened. As a result, the CPLT signal set to 12V transits to 9V by the test resistor R1, and simulates the state connected to the mode 2 vehicle. Accordingly, it is normal if the display unit of the vehicle charging device 1 displays “charging preparation”. The voltage of the CPLT signal can be measured by connecting a tester or the like to the CPLT voltage measurement terminal 12.

  When the switching means S2 is closed after the CPLT signal transits to 9V as described above, since the test resistor R1 and the test resistor R2 are connected in parallel, the CPLT signal transits to 6V, and the vehicle in mode 2 is in the charge-permitted state. Simulate that it became. Thereby, the switch 9 of the vehicle charging device 1 is turned on, and 200 V is applied. At the same time, if the display unit of the vehicular charging device 1 displays “charging” and the energization display lamp 14 of the portable inspection device is turned on, it can be confirmed that the vehicular charging device 1 has operated normally. If there is an abnormality, the voltage of the CPLT signal can be measured by connecting a tester or the like to the CPLT voltage measurement terminal 12 to check at which stage the abnormality has occurred.

  According to the above-described procedure, the function of charging the vehicle in the mode 2 by the vehicle charging device 1 can be easily inspected, but an abnormality simulation can also be performed.

  First, when inspecting the charging function for the vehicle in the mode 2 in which the lead storage battery is mounted, the switching unit S3 is closed in addition to the switching units S1 and S2. As a result, the third test resistor R3 is also connected in parallel, so that the voltage of the CPLT signal drops to 3V. This mimics the ventilation requirements of Mode 2 vehicles. In the case of the vehicle charging device 1 having no ventilation function, it is normal if an error is displayed on the display unit and charging is not started. Further, in the case of the vehicle charging device 1 having a ventilation function, it is normal if 200 V is applied, the display unit displays “charging”, and the energization display lamp 14 of the portable inspection device is lit. In the case of charging a vehicle in mode 2 equipped with a lead storage battery, the CPLT signal will not be 6V, so the switching means S2 and the switching means S3 are closed at the same time to change from 9V to 3V. Also good.

  Next, by closing the switching means S4, the diode 15 can be disabled, and a state in which the diode 7 is not present in the vehicle-side control circuit 3 can be simulated. It is normal if the charging connector is connected and the vehicle charging device 1 displays an abnormality and does not apply 200V.

  Next, the case where the vehicle charging device 1 inspects the function of charging the vehicle in mode 1 will be described. In this case, the CPLT signal line is disconnected from the test resistors R1, R2, and R3 by opening the switching means S1. For this reason, the above-described vehicle-side control circuit 3 is not simulated, and the voltage of the CPLT signal does not change.

  When the start button of the vehicle charging device 1 is pressed in this state, 200 V is applied between the terminals a and b, and when the switching means S5 is closed, a current of several amperes actually flows. When the switching means S5 is opened, 200V is applied to the energization display lamp 14, but the current is only a few mA, and the vehicle charging device 1 turns off the switch 9 and shuts off the energization after a predetermined time. In this manner, the function of charging the vehicle in the mode 1 by the vehicle charging device 1 can be inspected.

  In the above description, 9V, 6V, and 3V are simulated by connecting test resistors R1, R2, and R3 in parallel, but 9V, 6V, and 3V can be simulated by independent test resistors. Also good. The simulated load R4 can be replaced with a capacitor. The capacitor simulates the current (dark current) that flows through the noise filter connected to the in-vehicle battery 4 when the charging connector is connected. The current flowing through the capacitor has an advantage that less heat is generated by Joule heat due to a phase shift with respect to the voltage.

  In the circuit diagram shown in FIG. 4, the simulated load R4 includes a plurality of resistors R41 and R42, and is configured to be connected or separated by the switching means S5 ′. In this case, the charging current value is adjusted to be a predetermined value or more when only R41 is connected, and is adjusted to be within a certain range less than the predetermined value when the resistors R41 and R42 are connected (combined). . Thereby, the operation check according to the charging current value of the vehicle charging device when the charging control in mode 2 is not performed can also be performed.

  In the above-described embodiment, the switching unit is operated by manual operation. However, the switching units S1 and S2 can be controlled to be sequentially closed by sequence control. In the case of manual operation, the portable inspection apparatus does not require a power source, but in the case of performing sequence control, power is supplied from a battery.

  In addition, a switching unit that allows the switching units S1 and S2 to be opened and closed simultaneously can be provided. In this case, it is possible to deal with a simple mode 2 vehicle in which the step of 9V is not performed.

  As described above, by using the portable inspection device according to the first embodiment, it is possible to easily inspect whether or not the vehicle charging device operates normally without using an actual vehicle.

(Embodiment 2)
The portable inspection apparatus according to the second embodiment is obtained by adding a leakage test apparatus 16 to the portable inspection apparatus according to the first embodiment.

  As shown in FIG. 6, the leakage test device 16 includes at least a leakage test button BT and an adjustment resistor R5, and also includes a leakage current changing unit S6 and a phase switching unit S7, and is disposed inside the main body unit 10. ing.

  Inside the main body 10, a simulated load R 4 simulating the in-vehicle battery 4 is connected to the simulated electric circuit 17 connected to the power supply lines L 1 and L 2. When the switching means S5 provided on the upstream side of the simulated load R4 is closed, a current flows through the simulated electric circuit 17.

  The earth leakage test is performed in a state where a voltage is applied to the simulated electric circuit 17 for any of the mode 1 and mode 2 vehicles. By pressing the electric leakage test button BT, an electric circuit 20 can be provided between one of the simulated electric circuits 17 and the ground wire 18 to form a pseudo electric leakage circuit that simulates electric leakage. As shown in FIG. 7, the conventional leakage test operation unit does not simulate the occurrence of leakage in the actual circuit, but generates a pseudo leakage state using a dedicated test circuit inside the leakage breaker. Thus, it is determined whether or not the earth leakage interrupting mechanism operates normally. Specifically, as shown in FIG. 7, when the test button 23 is pressed, the phase balance of the primary current of the ZCT 24 is broken, and an electromotive force is generated on the secondary side, and the operation test of the leakage breaker mechanism 25 is performed. Therefore, even if the leakage test is normal, the leakage breaker 4 is pulled in the actual circuit due to other factors (for example, the grounding resistance (class D grounding) is not an appropriate value (standard value)). There is a case where the leakage protection device 26 does not operate normally because the disconnection is not performed, but the pseudo leakage circuit in the present embodiment is between the ground, the transformer 21, the distribution board 22, the vehicle charging device 1, and the portable inspection device. Therefore, it is possible to check the operation more accurately. The adjustment resistor R5 adjusts the leakage current of a predetermined value (for example, 15 mA) through the pseudo leakage circuit by pressing the leakage test button BT, and may be a capacitor.

  In the leakage current changing means S6, the value of the combined resistance of the adjusting resistor R5 and the test resistor R6 can be adjusted according to the distribution method (single-phase three-wire type or three-phase three-wire type) to change the pseudo leakage current. it can. Specifically, the ground-to-ground voltage is different between the three-phase three-wire and the single-phase three-wire, and in this embodiment, the leakage current due to the pseudo-leakage current is a predetermined value (for example, 15 mA) in any case. In the case of three-phase three-wire by switching the changing means S6, the resistance value is adjusted so that a current flows through the test resistor R6. A variable resistor can also be used as the leakage current changing means S6.

  In addition, the phase through which the leakage current flows can be switched between the power supply lines L1 and L2 by operating the phase switching unit S7. As shown in FIG. 8, for example, when an ungrounded R phase is drawn into the vehicle charging device 1 with a three-phase, three-wire transformer or the like, the pseudo-leakage circuit cannot be formed in the R phase. In such a case, the pseudo leak circuit can be formed by pressing the leak test button BT after switching to another phase (S phase / T phase) in S7. In practice, since it is difficult to confirm the phase drawn into the vehicle charging device 1, even if the earth leakage test button BT is pressed, if the earth leakage interrupting mechanism does not operate normally, it is switched to another phase in S7 and the earth leakage occurs. Test can be done.

  The ground wire 18 inside the main body 10 is provided with a current measuring means 19 that can measure the leakage current flowing through the pseudo leakage circuit when the leakage breaker mechanism does not operate normally even when the leakage test button BT is pressed. Yes. In addition, it is equipped with a display lamp (not shown) that is turned on by a leakage current, blinking once when the leakage current flows over a predetermined value (for example, 15 mA), and blinking twice when the leakage current is less than a predetermined value (for example, 15 mA) Abnormalities can also be displayed.

  Next, a flow of a leakage test by the portable inspection apparatus according to the second embodiment will be described with reference to FIG.

(ST1: Voltage application to portable inspection device)
When it is assumed that the vehicle of mode 2 is charged, as described in detail in the first embodiment, first, the switching means S1 is closed, and then the charging connector of the charging device 1 for the vehicle is connected to the charging connector connecting portion 11. Then, the CPLT signal is changed to 6V, the switch 9 of the vehicle charging device 1 is turned on, and 200V is applied.

  When it is assumed that the vehicle in mode 1 is charged, as described in detail in the first embodiment, the switching means S1 is opened and the CPLT signal line is disconnected from the test resistors R1, R2, and R3. Press the start button of the charging device 1 to apply 200V.

(ST2: Operation check of earth leakage breaker)
The earth leakage test button BT is pressed in the voltage application state, a pseudo earth leakage circuit is formed, and it is confirmed whether or not the earth leakage breaker operates to interrupt the electric circuit. In the present embodiment, the earth leakage breaker 27 is provided in the distribution board 22, and when the earth leakage breaker 27 is operated, the power supply to the vehicle charging device 1 is stopped and the display unit of the vehicle charging device 1 is turned off. Thus, it can be confirmed whether or not the leakage breaker 27 operates normally. In addition, the installation location of the earth leakage breaker for performing the operation check is not particularly limited. For example, the operation check can be performed even if the leakage breaker is provided inside the vehicle charging device 1.

(ST3: Abnormality judgment by leakage current value)
Furthermore, when the earth leakage breaker does not operate even though the earth leakage test button BT is pressed in the voltage applied state, the earth leakage current value that has flowed through the pseudo earth leakage circuit is measured by the current measuring means 19 and the earth leakage protection device ( ELB) abnormality (ST4) and ground resistance abnormality (ST5) can be determined. Specifically, if a leakage current of a predetermined value (for example, 15 mA) or more flows, it is determined that there is no leakage protection device in the actual circuit, and if it is less than the predetermined value (for example, 15 mA), the actual circuit It is possible to determine an abnormality in ground resistance (high resistance value).

DESCRIPTION OF SYMBOLS 1 Vehicle charging device 2 Vehicle 3 Vehicle side control circuit 4 Car-mounted battery 5 Charge control device 6 Pulse output circuit 7 Diode 8 Charge permission switch 9 Switch 10 Main body part 11 Charging connector connection part 12 CPLT voltage measurement terminal 13 200V measurement terminal 14 Energizing indicator lamp 15 Diode 16 Leakage test device 17 Simulated circuit 18 Ground wire 19 Current measuring means 20 Circuit 21 Transformer 22 Distribution board 23 Test button 24 ZCT
25 Earth leakage breaker 26 Earth leakage protection device 27 Earth leakage breaker

Claims (8)

  A charging connector connecting part that simulates a charging port on the vehicle side is connected to the portable main body part, and when the charging connector is connected to the charging connector connecting part, it is connected to the CPLT signal line to permit charging on the vehicle side. A portable inspection device for a vehicle charging device, characterized in that an electric circuit to be simulated is provided.   The portable inspection device for a charging device for a vehicle according to claim 1, wherein the main body portion is provided with switching means for simulating a transition from the charging cable connected state to the charging permission state.   3. The portable inspection device for a charging device for a vehicle according to claim 1, wherein a switching means for connecting to a test resistor or a diode for simulating vehicle compatibility in mode 2 is provided in the main body.   The portable inspection device for a charging device for a vehicle according to claim 1, wherein the main body portion is provided with switching means for invalidating connection to an electric circuit.   The portable inspection device for a charging device for a vehicle according to claim 4, wherein the main body portion is provided with a switching means for energizing and de-energizing the charging current.   5. A portable inspection device for a vehicle charging device according to claim 1 or 4, further comprising a leakage test device for simulating a leakage by connecting a ground wire drawn into the main body through a charging connector and a simulated electric circuit. apparatus.   The portable inspection device for a charging device for a vehicle according to claim 6, further comprising a current measuring means for measuring a simulated leakage current.   8. The portable inspection device for a charging device for a vehicle according to claim 6, wherein the leakage test device comprises a leakage current changing means for changing a simulated leakage current value.

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