JP5471770B2 - Charge control system - Google Patents

Description

  The present invention relates to a charge control system, and more particularly to a charge control system in which mutual communication is performed between a power storage side control unit and a charge side control unit.

  In a charge control system that controls charging of a power storage device such as a battery using a charging device such as a charger, the life of a relay circuit provided between the charging device and the power storage device is ensured at the end of the charge sequence control. However, in order to end safely, it is necessary to reliably discharge the charge accumulated in the capacitor or the like provided between the charging device and the power storage device after stopping charging from the charging device to the power storage device.

  As a technique related to the present invention, for example, Patent Document 1 discloses that the secondary battery and the power in a system having a power line that connects a power consuming or regenerating load and a secondary battery via a power adjustment element. The structure of the relay control apparatus which controls the relay which is provided between the adjustment elements and performs the disconnection of the electric power line from the said secondary battery to the said load is disclosed. And a power transmission / reception state detection means for detecting a power transmission / reception state of the secondary battery, and a power transmission / reception state of the secondary battery when detected by the power transmission / reception state detection means when the relay disconnection signal is received. A configuration is disclosed that includes a shut-off means that shuts off the power line by the relay when it can be considered that the power is not performed.

JP 2002-186102 A

  By the way, in a recent charge control system, there is a case where a single control unit that controls the entire system is separated for reasons such as expansion of the system scale. For example, one control unit may be divided into two, a power storage side control unit and a charge side control unit, and sequence control may be performed in each control unit while communicating with each other. However, if each sequence control is performed while the power storage side control unit and the charging side control unit communicate with each other, the sequence control on the communication partner side proceeds when a communication abnormality such as a communication interruption or communication interruption occurs. Since the state is not known, the sequence control on one side may be preceded, and a control abnormality such as deadlock may occur.

  The objective of this invention is providing the charge control system which performs sequence control so that control abnormality may be prevented suitably.

A charge control system according to the present invention performs a sequence control of a storage device side circuit including a storage device and a storage device side circuit including the storage device, and a storage device side control unit. When a communication abnormality between the charging side control unit and the charging side control unit is detected during charging from the charging device to the power storage device, the charging side control unit and the charging side at least A control abnormality prevention unit that performs sequence control so that one of the control units estimates the progress state of the other sequence control and prevents control abnormality, and a power supply unit that supplies power to at least the charging side control unit The power storage device side circuit has a power storage side relay circuit portion connected to the power storage device on one side, the charging device side circuit connected to the charging device on the one side, and the other side of the power storage side relay circuit portion The charging side relay circuit unit connected to the control side, and the control abnormality prevention unit detects a communication abnormality with the charging side control unit in the power storage side control unit, and establishes the communication abnormality. And the charging-side control unit detect a communication abnormality between the storage-side control unit and determine the communication abnormality, and the charging-side abnormality detection unit during charging and the charging-side abnormality detection unit during charging determine the communication abnormality. Power from the charging device to the power storage device when the communication abnormality is determined by the charging side charging stop unit during charging and the charging side abnormality detection unit during charging. When it is determined that the stop of power supply from the charging device to the power storage device is completed after the communication abnormality is confirmed by the charging side charging stop unit during charging and the charging power storage side abnormality detection unit , Power storage device side circuit and The charge storage device side circuit after discharging the charge accumulated in the power device side circuit and shutting off the power storage side relay circuit unit and the communication charge side abnormality detecting unit is determined by the charging side abnormality detection unit during charging. And a charging-side relay cutoff unit for charging that shuts off the charging-side relay circuit unit when it is determined that discharging of charge accumulated in the circuit on the charging device side and cutoff of the storage-side relay circuit unit have been completed, and charging during charging characterized after the abnormality is determined communicated by side abnormality detection unit, when it is determined that the interruption of the charging-side relay circuit has been completed, the charge in the power cutoff unit for cutting off the power supply unit, a Rukoto to have a And

Further, in the charge control system according to the present invention, the charging power storage side relay cutoff unit stores power from the charging device when a first time has elapsed after the communication abnormality is determined by the charging power storage side abnormality detection unit. It is determined that the stop of power supply to the device has been completed, and the charging side relay cutoff unit during charging is longer than the first time after the communication abnormality is determined by the charging side abnormality detection unit during charging. When the second time has elapsed, it is determined that the discharge of the electric charge accumulated in the power storage device side circuit and the charging device side circuit and the power storage side relay circuit unit have been disconnected, When a third time that is longer than the second time has elapsed after the communication abnormality is determined by the charging-side abnormality detection unit during charging, it is determined that the charging-side relay circuit unit has been disconnected. It is preferable.

  In the charge control system according to the present invention, the first time is a time sufficiently long to stop the power supply from the charging device to the power storage device, and the second time is the power storage device side circuit and the charging It is a sufficiently long time to discharge the electric charge accumulated in the device side circuit and cut off the storage side relay circuit unit, and the third time is a sufficiently long time to cut off the charge side relay circuit unit. Preferably there is.

In the charging control system according to the present invention, the charging power storage side relay cut-off unit is configured such that the current value flowing through the power storage device is equal to or less than a predetermined threshold after the communication abnormality is determined by the charging power storage side abnormality detection unit. Then, it is determined that the stop of power supply from the charging device to the power storage device has been completed, and the charging side relay cutoff unit during charging establishes a communication abnormality by the charging side storage side abnormality detection unit, when the output voltage is below a predetermined threshold value, Rukoto be determined to shut off the discharge and the storage-side relay circuit portion of the charges stored in the power storage device side circuit and the charging device side circuit is complete is preferred.

In the charging control system according to the present invention, the charging power cutoff unit has sufficiently long time to shut off the charging side relay circuit unit after the charging abnormality is determined by the charging side abnormality detection unit . Occasionally, you to determining that the interruption of the charging-side relay circuit is completed preferable.

  In the charging control system according to the present invention, the control abnormality prevention unit detects an abnormality in communication with the charging side control unit before starting charging from the charging device to the power storage device in the power storage side control unit. The pre-charging storage-side abnormality detection unit that determines the abnormality, and the pre-charging storage-side sequence control unit that ends the sequence control of the storage-side control unit when the communication abnormality is determined by the pre-charging storage-side abnormality detection unit, and the charging In the side control unit, before starting charging from the charging device to the power storage device, a communication abnormality with the power storage side control unit is detected, and the charge side abnormality detection unit before charging for determining the communication abnormality, and the charging side abnormality before charging It is preferable to include a pre-charging-side sequence control unit that terminates the sequence control of the charging-side control unit when communication abnormality is determined by the detection unit.

  According to the charging control system having the above configuration, when a communication abnormality between the power storage side control unit and the charging side control unit is detected during charging from the charging device to the power storage device, at least the power storage side control unit and the charging side Either one of the control units can estimate the progress state of the other sequence control and perform the sequence control so as to prevent the control abnormality. Thereby, the charge control system which performs sequence control so that control abnormality may be prevented suitably can be provided.

It is a figure which shows the structure of the charge control system of embodiment which concerns on this invention. In embodiment which concerns on this invention, it is a figure which shows each element of an electrical storage side control part and a charge side control part. In embodiment which concerns on this invention, it is a flowchart which shows the procedure which performs sequence control so that the electrical storage side control part estimates the progress state of the sequence control of a charge side control part, and prevents a deadlock. In embodiment which concerns on this invention, it is a flowchart which shows the procedure which a charge side control part estimates the progress state of the sequence control of an electrical storage side control part, and performs sequence control so that a deadlock is prevented. It is a figure which shows the structure of the modification of the charge control system of embodiment which concerns on this invention. In a modification of the charge control system according to the embodiment of the present invention, when the storage-side control unit determines a communication abnormality with the charge-side control unit before the start of charging, the sequence control is terminated so as to prevent deadlock. It is a flowchart which shows the procedure which performs. In a modification of the charge control system according to the embodiment of the present invention, when the charge side control unit determines a communication abnormality with the power storage side control unit before the start of charging, the sequence control is terminated so as to prevent deadlock. It is a flowchart which shows the procedure which performs.

  Below, the same code | symbol is attached | subjected to the same element in all the drawings, and the overlapping description is abbreviate | omitted. In the description in the text, the symbols described before are used as necessary.

  FIG. 1 is a diagram illustrating a configuration of the charging control system 10. The charging control system 10 includes a power storage device side circuit 100, a charging device side circuit 200, a power supply unit 40, a power storage side control unit 20, a charging side control unit 30, and an external charging cable unit 50. The Here, the power storage device side circuit 100, the charging device side circuit 200, the power source unit 40, the power storage side control unit 20, and the charging side control unit 30 are hybrid vehicles that travel using both an engine and a motor. It is installed.

  The power storage device side circuit 100 includes a power storage device 102, a power storage side relay circuit unit 103, a power storage side capacitor 112, a DC / DC converter circuit 114, an A / C circuit 116, a buck-boost converter circuit 118, a first The inverter circuit 120, the second inverter circuit 122, the first motor generator 124, and the second motor generator 126 are configured.

  The power storage device 102 is a battery for supplying power to the first motor generator 124 and the second motor generator 126. The power storage device 102 is a chargeable / dischargeable DC power source, for example, a negative electrode made of a carbon material, an electrolyte for moving lithium ions, and a positive electrode active material capable of reversing lithium ions. Can be used.

  The power storage side relay circuit unit 103 includes a first relay circuit unit 104, a second relay circuit unit 107, and a third relay circuit unit 110. The first relay circuit unit 104 is a relay connected in series to the positive electrode side line 24, and connection or disconnection control is performed by a control command from the power storage side control unit 20. The second relay circuit unit 107 is configured by connecting in series a resistance element 108 and a relay 106 that is controlled to be connected or disconnected according to a control command from the power storage side control unit 20. The second relay circuit unit 107 is connected in series to the negative electrode side line 26. The third relay circuit unit 110 is a relay connected in parallel to the second relay circuit unit 107, and connection or disconnection control is performed according to a control command from the power storage side control unit 20.

  Here, the state in which the power storage device 102 is electrically connected to the load side circuit connected to the positive electrode side line 24 and the negative electrode side line 26 is referred to as SMR connection, and the power storage device 102 and the load side circuit are related to each other. The state in which these are electrically cut off is called SMR cut off. In the SMR connection, the relay of the first relay circuit unit 104 is in a connected state, and at least one of the relay 106 of the second relay circuit unit 107 and the relay of the third relay circuit unit 110 is in a connected state. Say. Further, the SMR cutoff means that the relay of the first relay circuit unit 104 is in the cutoff state and the relay 106 of the second relay circuit unit 107 and the relay of the third relay circuit unit 110 are in the cutoff state. The SMR cutoff may be performed when the relay of the second relay circuit unit 107 and the relay of the third relay circuit unit 110 are not in the cutoff state when the relay of the first relay circuit unit 104 is in the cutoff state. Even if the relay of the 1st relay circuit part 104 is not a cutoff state, the relay 106 of the 2nd relay circuit part 107 and the relay of the 3rd relay circuit part 110 should just be a cutoff state.

  The power storage side capacitor 112 is connected between the positive electrode side line 24 and the negative electrode side line 26 and is a smoothing capacitor that smoothes voltage fluctuations between the positive electrode side line 24 and the negative electrode side line 26.

  The buck-boost converter circuit 118 has a function of boosting a DC voltage received from the power storage device 102 using a coil or the like. Specifically, the step-up / down converter circuit 118 accumulates current flowing in accordance with the switching operation of a switching element such as a transistor as electromagnetic energy in the coil. The step-up / step-down converter circuit 118 boosts the accumulated electromagnetic energy in the capacitor in synchronization with the timing when the transistor is turned off. Further, the step-up / down converter circuit 118 can step down the DC voltage received from the first inverter circuit 120 or the second inverter circuit 122 and charge the power storage device 102.

  The first inverter circuit 120 and the second inverter circuit 122 convert a DC voltage, which is an output voltage of the step-up / down converter circuit 118, into an AC voltage when the hybrid vehicle is powered, and supply it to the first motor generator 124 or the second motor generator 126. Accordingly, the first motor generator 124 or the second motor generator 126 is rotationally driven. The first inverter circuit 120 and the second inverter circuit 122 convert the AC voltage generated by the first motor generator 124 or the second motor generator 126 into a DC voltage during regeneration of the hybrid vehicle, and The power storage device 102 is charged via the via.

  The first motor generator 124 and the second motor generator 126 are three-phase AC rotating electric machines each including a U-phase coil, a V-phase coil, and a W-phase coil. The first motor generator 124 generates power using the power of the engine divided by a power split mechanism (not shown). The electric power generated by first motor generator 124 is selectively used according to the traveling state of the hybrid vehicle and the state of SOC (Stage Of Charge) of power storage device 102. Second motor generator 126 is driven by at least one of the electric power stored in power storage device 102 and the electric power generated by first motor generator 124.

  The DC / DC converter circuit 114 has a function of stepping down the output voltage of the power storage device 102 that is a main battery to the charging voltage of the power supply unit 40 that is an auxiliary battery.

  A / C circuit 116 includes an inverter that converts DC power of power storage device 102 into AC power in order to drive and control a compressor (not shown).

  The charging device side circuit 200 includes a charger 202, a charging side capacitor 204, and a charging side relay circuit unit 205.

  The charger 202 is a device that is controlled by the charging-side control unit 30 and converts AC power from an external commercial power source into DC power and supplies it to the power storage device 102. The charger 202 receives AC power from an external commercial power supply via the external charging cable unit 50, and converts the input AC power into DC power by an AC / DC conversion circuit. Then, the DC power is converted into high frequency AC power by a DC / AC conversion circuit, and then the high frequency AC power is converted into a voltage level corresponding to the turn ratio of the primary coil and the secondary coil by an insulating transformer circuit. Then, the AC power is rectified to DC power by a rectifier circuit and output.

  The charging side capacitor 204 is a smoothing capacitor provided between the AC / DC conversion circuit and the DC / AC conversion circuit of the charger 202. Here, a state in which the charge accumulated in the charging side capacitor 204 is discharged will be described. This is necessary and is shown outside the charger 202 for the sake of clarity.

  The charging-side relay circuit unit 205 includes a first relay circuit unit 206 and a second relay circuit unit 208. The first relay circuit unit 206 is a relay connected in series to the positive electrode side line 27, and connection or disconnection control is performed according to a control command from the charging side control unit 30. The second relay circuit unit 208 is a relay connected in series to the negative electrode side line 29, and is controlled to be connected or disconnected by a control command from the charging side control unit 30.

  Here, the state where the charger 202 is connected to the load side circuit and the like connected to the positive side line 27 and the negative side line 29 is called CHR connection, and the charger 202 and the load side circuit and the like are connected. The blocked state is called CHR blocking. The CHR connection means that the relay of the first relay circuit unit 206 is in a connected state and the relay of the second relay circuit unit 208 is in a connected state. Moreover, CHR interruption | blocking means that the relay of the 1st relay circuit part 206 is an interruption | blocking state, and the relay of the 2nd relay circuit part 208 is an interruption | blocking state. It should be noted that the CHR cutoff is performed even if all the relays of the first relay circuit unit 206 and the second relay circuit unit 208 are not in the cutoff state, for example, the relay of the first relay circuit unit 206 and the relay of the second relay circuit unit 208 Any one of the relays may be in the cut-off state.

  The external charging cable unit 50 is connected to a plug 56 for connecting to an AC outlet of an external commercial power source, a CCID 54 including a relay for stopping power supply from the external commercial power source to the charger 202, and the charger 202. And a connector 52 for connecting to the inlet 207.

  The power storage side control unit 20 is connected to the power storage device side circuit 100 via the control line 16 and has a function of controlling the power storage device side circuit 100. In addition, the power storage side control unit 20 is connected to the charger 202 of the charging device side circuit 200 via the control line 14, and issues a command for stopping the power supply from the charger 202 to the power storage device 102 (charging stop). Can be given. The power storage side control unit 20 is connected to the charging side control unit 30 via the communication line 12, and mutual communication is performed with the charging side control unit 30. Here, in particular, in the control of the power storage side control unit 20, the charge stop control of the charger 202 when the charge control is terminated, and the charge accumulated in the power storage side capacitor 112 and the charge side capacitor 204 is discharged (discharged). Then, the switching control of the step-up / down converter circuit 118, the first inverter circuit 120, and the second inverter circuit 122 to be consumed by the first motor generator 124 and the second motor generator 126, and the SMR connection / A description will be given of the charging-time storage-side control abnormality prevention unit 210 for preventing a control abnormality when performing sequence control in which each control such as SMR cutoff control is performed according to a predetermined procedure.

  FIG. 2 is a diagram illustrating each element of the power storage side control unit 20 and the charging side control unit 30. The charging power storage side control abnormality prevention unit 210 includes a charging power storage side abnormality detection processing unit 212, a charging power storage side charging stop processing unit 214, a charging power storage side relay cutoff processing unit 216, and a charging power storage side power supply cutoff. And a processing unit 218.

  The storage-side abnormality detection processing unit 212 during charging causes the communication-side control unit 20 to detect a communication abnormality when the abnormality detection bit is data indicating a communication abnormality among the data transmitted from the charging-side control unit 30. Temporary detection. In addition, the charged power storage side abnormality detection processing unit 212 has a function of determining whether or not normal communication is restored during a predetermined period of time α seconds after temporarily detecting a communication abnormality. Further, when the charging power storage side abnormality detection processing unit 212 determines that the communication has not returned to normal during a predetermined period of time α seconds after temporarily detecting the communication abnormality, the communication abnormality is confirmed (communication abnormality is confirmed). Temporary detection is assumed to be main detection). Here, the predetermined period α seconds is a sufficiently long time after temporarily detecting a communication abnormality to determine that the temporary detection is not a false detection due to the influence of noise or the like.

  The charging power storage side charge stop processing unit 214 is configured to supply power to the power storage device 102 with respect to the charger 202 via the control line 14 when the communication abnormality is confirmed by the charging power storage side abnormality detection processing unit 212. It has a function of performing control for stopping supply.

  The charging-side storage-side relay cutoff processing unit 216 receives the storage-side capacitor 112 of the power-storage device-side circuit 100 after a predetermined period of β seconds has elapsed after the charging-side storage-side abnormality detection processing unit 212 determines the communication abnormality. The charge-capacitor 204 in the charging device side circuit 200 is discharged (discharged) so that the charge is consumed by the first motor generator 124 and the second motor generator 126. Switching control of the first inverter circuit 120 and the second inverter circuit 122 is performed. The charging-side storage-side relay cut-off processing unit 216 includes a relay of the first relay circuit unit 104 so that the storage-side relay circuit unit 103 is turned off SMR after discharging the charges of the storage-side capacitor 112 and the charging-side capacitor 204. The relay 106 of the second relay circuit unit 107 and the relay of the third relay circuit unit 110 are cut off. Here, the predetermined period β seconds is a sufficiently long time to stop the power supply from the charger 202 to the power storage device 102.

  The charged power storage side power supply shut-off processing unit 218 has a function of shutting off the power supply unit 40 after a predetermined period of δ seconds elapses after the communication power storage side abnormality detection processing unit 212 determines the communication abnormality. Here, the predetermined period δ seconds is long enough for the charging-side control unit 30 to turn off the charging-side relay circuit unit 205 (the progress state of the sequence control of the charging-side control unit 30 that is the communication partner). Estimated time).

  The charging side control unit 30 is connected to the charging device side circuit 200 via the control line 18 and has a function of controlling the charging device side circuit 200. The charging side control unit 30 is connected to the power storage side control unit 20 via the communication line 12, and mutual communication is performed with the power storage side control unit 20. Here, in particular, among the controls of the charging side control unit 30, each control such as the charging interruption / stop control of the charger 202 and the CHR connection / CHR cutoff control of the charging side relay circuit unit 205 when the charging control is terminated. The charging side control abnormality prevention unit 310 during charging for preventing the occurrence of a control abnormality in the case of performing the sequence control for executing the above in a predetermined procedure will be described.

  The charging side control abnormality prevention unit 310 during charging includes a charging side abnormality detection processing unit 312 during charging, a charging side charging stop processing unit 314 during charging, a charging side relay cutoff processing unit 316 during charging, and a charging side power supply cutoff during charging. And a processing unit 318.

  The charging-side abnormality detection processing unit 312 during charging detects a communication abnormality when the abnormality detection bit is data indicating a communication abnormality in the data transmitted from the power storage-side control unit 20 in the charging-side control unit 30. Temporary detection. The charging-side abnormality detection processing unit 312 during charging has a function of performing control for interrupting power supply to the power storage device 102 with respect to the charger 202 via the control line 18 after temporarily detecting a normal abnormality. The charging-side abnormality detection processing unit 312 during charging has a function of determining whether or not normal communication is restored during a predetermined period α seconds after provisionally detecting a communication abnormality. Furthermore, when the charging side abnormality detection processing unit 312 determines that the communication has not returned to normal during a predetermined period of time α seconds after the provisional detection of the communication abnormality, the charging abnormality confirmation (communication abnormality) (The temporary detection of this will be the main detection). Here, the predetermined period α seconds is a sufficiently long time after temporarily detecting a communication abnormality to determine that the temporary detection is not a false detection due to the influence of noise or the like.

  The charging side charge stop processing unit 314 is charged with power to the power storage device 102 via the control line 18 when the communication abnormality is confirmed by the charging side abnormality detection processing unit 312. It has a function of performing control for stopping supply.

  The charging-side relay cut-off processing unit 316 is configured so that the charging-side relay circuit unit 205 detects that the CHR is cut off after a predetermined period of γ seconds elapses after the communication abnormality is determined by the charging-side abnormality detection processing unit 312 during charging. Thus, the relay of the first relay circuit unit 206 and the relay of the second relay circuit unit 208 are cut off. Here, for a predetermined period γ seconds, the electric charge accumulated in the electric storage side capacitor 112 of the electric storage device side circuit 100 and the electric charge side capacitor 204 of the charging device side circuit 200 is discharged, and the electric storage side relay circuit unit 103 is turned off by SMR. This is a sufficiently long time to estimate the progress state of the sequence control of the power storage side control unit 20 that is the communication partner. The relationship between β seconds, γ seconds, and δ seconds is β seconds ≦ γ seconds ≦ δ seconds, and more preferably β seconds <γ seconds <δ seconds.

  The charging-side power cutoff processing unit 318 during charging shuts off the relay of the first relay circuit unit 206 and the relay of the second relay circuit unit 208 so that the charging-side relay circuit unit 205 becomes CHR cutoff. It has a function to shut off.

  The power supply unit 40 is an auxiliary battery that outputs a voltage lower than the output voltage of the power storage device 102 that is a main battery, and is charged by the voltage stepped down by the DC / DC converter circuit 114. The output voltage of the power supply unit 40 is supplied to the power storage side control unit 20 and the charging side control unit 30.

  Here, the charging-time storage-side control abnormality prevention unit 210 and the charging-time charging-side control abnormality prevention unit 310 are collectively referred to as a control abnormality prevention unit.

  The operation of the charging control system 10 having the above configuration will be described with reference to FIGS. FIG. 3 shows the sequence control of one of the power storage side control unit 20 and the charge side control unit 30 during the charging of the power storage device 102 from the charger 202 by the control abnormality prevention unit of the charge control system 10. It is a flowchart which shows the procedure which estimates a state and performs sequence control so that control abnormality (deadlock) may be prevented. Here, FIG. 3A is a flowchart illustrating a procedure in which the power storage side control unit 20 estimates the progress state of the sequence control of the charge side control unit 30 and performs the sequence control so as to prevent deadlock. FIG. 3B is a flowchart illustrating a procedure in which the charging side control unit 30 estimates the progress state of the sequence control of the power storage side control unit 20 and performs the sequence control so as to prevent deadlock.

  First, with reference to FIG. 3A, a procedure in which the power storage side control unit 20 estimates the progress state of the sequence control of the charge side control unit 30 and performs the sequence control so as to prevent deadlock will be described. In the charging control system 10, in order to start charging, charging mode sequence control for causing the power storage device side circuit 100 to perform a necessary operation is performed, and charging control is executed. When charging is being performed, as shown in FIG. 3A, the charging-side storage-side control abnormality prevention unit 210 of the storage-side control unit 20 is in communication abnormality with the charging-side control unit 30. Is temporarily detected (S10). This process is executed by the function of the charging-side abnormality detection processing unit 212 during charging. If it is determined in S10 that a communication abnormality with the charging side control unit 30 has not been temporarily detected, the process proceeds to a return process.

  If it is determined in S10 that a communication abnormality with the charging-side control unit 30 has been temporarily detected, it is determined whether or not a predetermined period of α seconds has elapsed in the temporary detection state (S12). This process is executed by the function of the charging-side abnormality detection processing unit 212 during charging.

  If it is determined in S12 that the predetermined period α seconds has not elapsed in the provisional detection state, it is determined whether or not the communication state with the charging-side control unit 30 has returned to normal communication (S14). . This process is executed by the function of the charging-side abnormality detection processing unit 212 during charging. If it is determined in S14 that the communication state with the charging-side control unit 30 has returned to normal communication, the process proceeds to return processing. In S14, if it is determined that the communication state with the charging-side control unit 30 has not returned to normal communication and remains in the provisional detection state, the process returns to S12 again.

  If it is determined in S12 that the predetermined period α seconds has passed in the provisional detection state, the communication state with the charging-side control unit 30 is determined to be a communication abnormality (S16). This process is executed by the function of the charging-side abnormality detection processing unit 212 during charging. After S16, the process proceeds to S18.

  In S18, control for stopping the power supply to the power storage device is performed on the charger 202 via the control line 14 (S18). This step is executed by the function of the charging-time storage-side charge stop processing unit 214. After S18, the process proceeds to S20.

  In S20, it is determined whether or not a predetermined period of β seconds has elapsed since the abnormality of communication with the charging-side control unit 30 is determined (S20). This step is executed by the function of the charging-side storage-side relay cutoff processing unit 216. In S20, if it is determined that a predetermined period of β seconds has not elapsed since the communication abnormality with the charging-side control unit 30 is confirmed, the process returns to S20 again.

  In S20, if it is determined that a predetermined period of β seconds has elapsed since the abnormality of communication with the charging-side control unit 30 has been determined, the charge accumulated in the power storage-side capacitor 112 of the power storage device-side circuit 100 and the charge The charge accumulated in the charge side capacitor 204 of the device side circuit 200 is discharged (discharged) (S22). This step is executed by the function of the charging-side storage-side relay cutoff processing unit 216. After S22, the process proceeds to S24.

  In S24, the relay of the first relay circuit unit 104, the relay 106 of the second relay circuit unit 107, and the relay of the third relay circuit unit 110 are disconnected so that the power storage side relay circuit unit 103 is in the SMR cutoff state (S24). . This step is executed by the function of the charging-side storage-side relay cutoff processing unit 216. After S24, the process proceeds to S26.

  In S26, it is determined whether or not a predetermined period of δ seconds has elapsed since the communication abnormality with the charging-side control unit 30 has been determined (S26). This step is executed by the function of the power storage side power shutoff processing unit 218 during charging. In S26, if it is determined that a predetermined period of δ seconds has not elapsed since the establishment of an abnormality in communication with the charging side control unit 30, the process returns to S26 again.

  If it is determined in S26 that a predetermined period of δ seconds has elapsed since the establishment of an abnormality in communication with the charging-side control unit 30, control is performed to shut off the power supply unit 40 (S28). This step is executed by the function of the power storage side power shutoff processing unit 218 during charging. After S28, the process proceeds to return processing.

  Next, a procedure in which the charging-side control unit 30 estimates the progress state of the sequence control of the power storage-side control unit 20 and performs the sequence control so as to prevent deadlock will be described with reference to FIG. In the charging control system 10, in order to start charging, charging mode sequence control for causing the charging device side circuit 200 to perform a necessary operation is performed, and charging control is executed. When charging is being performed, as shown in FIG. 3B, the charging side control abnormality prevention unit 310 during charging of the charging side control unit 30 is in communication abnormality with the power storage side control unit 20. Is temporarily detected (S40). This step is executed by the function of the charging side abnormality detection processing unit 312 during charging. In S40, if it is determined that a communication abnormality with the power storage side control unit 20 is not temporarily detected, the process proceeds to return processing.

  In S <b> 40, if it is determined that a communication abnormality with the power storage side control unit 20 is temporarily detected, control for interrupting power supply to the power storage device 102 is performed on the charger 202 via the control line 18. Perform (S42). This step is executed by the function of the charging side abnormality detection processing unit 312 during charging. After S42, the process proceeds to S44.

  In S44, it is determined whether or not a predetermined period α seconds has passed while the communication state with the power storage side control unit 20 remains in the provisional detection state (S44). This step is executed by the function of the charging side abnormality detection processing unit 312 during charging.

  If it is determined in S44 that the predetermined period α seconds has not elapsed in the provisional detection state, it is determined whether or not the communication state with the power storage side control unit 20 has returned to normal communication (S46). . This step is executed by the function of the charging side abnormality detection processing unit 312 during charging. In S46, if it is determined that the communication state with the power storage side control unit 20 has returned to normal communication, the charger 202 is restarted to supply power to the power storage device via the control line 18 (S58). ), The process proceeds to return processing. If it is determined in S44 that the communication state with the power storage side control unit 20 has not returned to normal communication, the process returns to S42 again.

  If it is determined in S44 that the predetermined period α seconds has elapsed in the provisional detection state, the communication state with the power storage side control unit 20 is determined to be communication abnormality (S48). This step is executed by the function of the charging side abnormality detection processing unit 312 during charging. After S48, the process proceeds to S50.

  In S50, control for stopping power supply to the power storage device 102 is performed on the charger 202 via the control line 18 (S50). This step is executed by the function of the charging side charging stop processing unit 314 during charging. After S50, the process proceeds to S52.

  In S52, it is determined whether or not a predetermined period of γ seconds has elapsed since the communication abnormality with the power storage side control unit 20 is confirmed (S52). This step is executed by the function of the charging-side relay cutoff processing unit 316 during charging. In S52, if it is determined that a predetermined period of γ seconds has not elapsed since the establishment of an abnormality in communication with the power storage side control unit 20, the process returns to S52 again.

  In S52, if it is determined that a predetermined period of γ seconds has elapsed since the establishment of an abnormality in communication with the power storage side control unit 20, the first side is set so that the charging side relay circuit unit 205 enters the CHR cutoff state. The relay of the relay circuit unit 206 and the relay of the second relay circuit unit 208 are disconnected (S54). This step is executed by the function of the charging-side relay cutoff processing unit 316 during charging. After S54, the process proceeds to S56.

  In S56, control is performed to shut off the power supply unit 40 (S56). This process is executed by the function of the charging-side power cutoff processing unit 318 during charging. After S58, the process proceeds to return processing.

  As described above, the power storage side control unit 20 estimates the progress state of the sequence control of the charge side control unit 30 and performs the sequence control so as to prevent deadlock, and the charge side control unit 30 also performs the power storage side control unit 20. The sequence control is performed so as to prevent the deadlock by estimating the progress state of the sequence control. This prevents a control abnormality (deadlock) even when a communication abnormality between the power storage side control unit 20 and the charging side control unit 30 occurs during charging of the power storage device 102 by the charger 202. In addition, after the electric charge accumulated in the power storage side capacitor 112 of the power storage device side circuit 100 and the charge side capacitor 204 of the charging device side circuit 200 has been completely discharged, the SMR cutoff of the power storage side relay circuit unit 103 is completed. Then, since the charging-side relay circuit unit 205 is disconnected from the CHR, an arc-free opening can be achieved and the life of the relay can be secured.

  In the charging control system 10, the power storage side control unit 20 is sufficient to stop the power supply from the charger 202 to the power storage device 102 after the communication abnormality with the charging side control unit 30 is confirmed. When a predetermined period β seconds, which is a long time, has elapsed, it is estimated that the supply of power from the charger 202 to the power storage device 102 has been completed, and the power storage side capacitor 112 of the power storage device side circuit 100 Although it has been described that the electric charge stored in the charging side capacitor 204 of the charging device side circuit 200 is discharged (discharged), the current value flowing through the power storage device 102 is equal to or less than a predetermined threshold value (a value including a current sensor error in 0 mA). If so, it can be estimated that the power supply from the charger 202 to the power storage device 102 has been stopped.

  In the charging control system 10, the charging-side control unit 30 charges the storage-side capacitor 112 and the charging-device-side circuit 200 of the storage-device-side circuit 100 after the communication abnormality with the storage-side control unit 20 is established. When the predetermined time γ seconds, which is a sufficiently long time, has passed for discharging the electric charge accumulated in the side capacitor 204 and shutting off the power storage side relay circuit 103, the power storage side capacitor 112 and the charge side capacitor It has been described that the charge discharge of 204 and the storage-side relay circuit unit 103 have completed SMR cutoff, and the charging-side relay circuit unit 205 enters the CHR cutoff state. Is equal to or less than a predetermined threshold value (a value including a voltage sensor error at 0 mV), the charge depletion of the power storage side capacitor 112 and the charge side capacitor 204 is reduced. Suchaji the power storage side relay circuit unit 103 can be estimated that the SMR blocking is complete.

  Next, a charge control system 11 that is a modification of the charge control system 10 will be described. FIG. 4 is a diagram illustrating a configuration of the charging control system 11. The difference between the charge control system 11 and the charge control system 10 is only the pre-charge storage-side control abnormality prevention unit 220 of the storage-side control unit 21 and the pre-charge charge-side control abnormality prevention unit 320 of the charge-side control unit 31. The difference will be mainly described. The power storage side control unit 21 includes a pre-charging power storage side control abnormality prevention unit 220 and a charging power storage side control abnormality prevention unit 210. The charging side control unit 31 includes a pre-charging charging side control abnormality prevention unit 320 and a charging-side charging side control abnormality prevention unit 310. In the charging control system 11, the pre-charging power storage side control abnormality prevention unit 220, the charging power storage side control abnormality prevention unit 210, the pre-charging charging side control abnormality prevention unit 320, and the charging middle charging side control abnormality prevention unit 310 are combined. This is called a control abnormality prevention unit.

  The pre-charging storage-side control abnormality prevention unit 220 includes a storage-side charging mode determination processing unit 222, a pre-charging storage-side abnormality detection processing unit 224, and a pre-charging storage-side sequence control processing unit 226.

  The power storage side charging mode determination processing unit 222 determines whether or not the charging start mode is a mode for charging the power storage device 102 from the charger 202. The determination as to whether or not the charging start mode is in effect is made, for example, by detecting a signal generated when the connector 52 of the external charging cable unit 50 is connected to the inlet 207 of the charging device side circuit 200 and shifting to the charging start mode. Can be determined.

  The pre-charging power storage side abnormality detection processing unit 224 determines a communication abnormality in the power storage side control unit 21 when the abnormality detection bit is data indicating a communication abnormality among the data transmitted from the charging side control unit 31. Temporary detection. The pre-charging power storage side abnormality detection processing unit 224 has a function of determining whether or not normal communication is restored during a predetermined period α seconds after provisionally detecting a communication abnormality. Further, the pre-charging power storage side abnormality detection processing unit 224 determines the communication abnormality (communication abnormality is confirmed) when it is determined that the communication has not returned to normal during a predetermined period of time α seconds after provisionally detecting the communication abnormality. Temporary detection is assumed to be main detection). Here, the predetermined period α seconds is a sufficiently long time after temporarily detecting a communication abnormality to determine that the temporary detection is not a false detection due to the influence of noise or the like.

  The pre-charging power storage side sequence control processing unit 226 operates necessary for the power storage device side circuit 100 to start charging when it is determined by the power storage side charging mode determination processing unit 222 that the charging start mode is set. Charge mode sequence control is performed to cause Then, when it is determined by the power storage side charging mode determination processing unit 222 that the charging start mode is not set, the power storage device side circuit 100 is caused to perform a necessary operation in order to run the hybrid vehicle with the power of the power storage device 102. For this purpose, it has a function of performing traveling mode sequence control. Further, the pre-charging power storage side sequence control processing unit 226 has a function of terminating the control for the charging mode sequence control when a communication abnormality is determined by the pre-charging power storage side abnormality detection processing unit 224.

  The pre-charging-side control abnormality prevention unit 320 includes a charging-side charging mode determination processing unit 322, a pre-charging-side abnormality detection processing unit 324, and a pre-charging-side sequence control processing unit 326.

  Charging side charging mode determination processing unit 322 determines whether or not the charging start mode for charging power storage device 102 from charger 202 is set. The determination of whether or not the charging start mode is in effect is made, for example, by detecting a signal generated when the external charging cable unit 50 is connected to the inlet 207 of the charging device side circuit 200 and determining that the charging start mode has been entered. can do.

  The pre-charging-side abnormality detection processing unit 324 detects a communication abnormality in the charging-side control unit 31 when the abnormality detection bit is data indicating a communication abnormality among the data transmitted from the power storage-side control unit 21. Temporary detection. The pre-charging-side abnormality detection processing unit 324 has a function of determining whether or not normal communication is restored during a predetermined period of time α seconds after provisionally detecting a communication abnormality. Further, the pre-charging-side abnormality detection processing unit 324 determines the communication abnormality (communication abnormality is detected) when it is determined that the communication has not returned to normal during a predetermined period α seconds after provisionally detecting the communication abnormality. Temporary detection is assumed to be main detection). Here, the predetermined period α seconds is a sufficiently long time after temporarily detecting a communication abnormality to determine that the temporary detection is not a false detection due to the influence of noise or the like.

  The pre-charging power storage side sequence control processing unit 226 ends without starting the charging mode sequence control when the communication abnormality is determined by the pre-charging power storage side abnormality detection processing unit 224, and the pre-charging power storage side abnormality detection processing unit 224 Even if it is determined that the communication is normal, it has a function of starting the charge mode sequence control.

  Note that the difference between the charging control system 11 and the charging control system 10 is that the charging control system 10 communicates between the power storage side control unit 20 and the charging side control unit 30 during charging from the charger 202 to the power storage device 102. When the abnormality is confirmed, the power storage side control unit 20 and the charging side control unit 30 estimate the progress state of the other sequence control and perform the sequence control so as to prevent the control abnormality, but the charging control system 11 Then, in addition to the above function, when the communication abnormality between the power storage side control unit 20 and the charging side control unit 30 is determined before the start of charging, the control is finished so as not to cause a control abnormality. . Hereinafter, among the operations of the charging control system 11, the operation for preventing control abnormality before the start of charging will be described with reference to FIG. FIG. 5 is a flowchart showing a procedure for terminating the sequence control so as to prevent control abnormality (deadlock) by the control abnormality prevention unit of the charging control system 11 before starting charging from the charger 202 to the power storage device 102. It is. Here, FIG. 5A shows a procedure for terminating the sequence control so as to prevent deadlock when the power storage side control unit 21 determines a communication abnormality with the charge side control unit 31 before the start of charging. It is a flowchart to show. FIG. 5B shows a procedure for ending the sequence control so as to prevent deadlock when the charging side control unit 31 determines a communication abnormality with the power storage side control unit 21 before the start of charging. It is a flowchart.

  First, referring to FIG. 5A, a procedure for ending sequence control so as to prevent deadlock when the storage-side control unit 21 determines a communication abnormality with the charge-side control unit 31 before starting charging. Will be described. As shown in FIG. 5A, the power storage side control unit 21 determines whether or not it is in a charge start mode for charging the power storage device 102 from the charger 202 (S110). This step is executed by the function of the power storage side charging mode determination processing unit 222.

  If it is determined in S110 that the charging start mode is not set, the running mode sequence control is started (S112). This step is executed by the function of the pre-charging power storage side sequence control processing unit 226. Thereafter, the process proceeds to return processing.

  If it is determined in S110 that the charging start mode is set, charging mode sequence control is started (S114). This step is executed by the function of the pre-charging power storage side sequence control processing unit 226. Thereafter, the process proceeds to S116.

  In S116, the storage-side control unit 21 determines whether or not a communication abnormality with the charging-side control unit 31 has been provisionally detected (S116). This step is executed by the function of the pre-charging power storage side abnormality detection processing unit 224. If it is determined in S116 that a communication abnormality with the charging-side control unit 31 has not been temporarily detected, the process proceeds to return processing.

  If it is determined in S116 that a communication abnormality with the charging-side control unit 31 has been provisionally detected, it is determined whether or not a predetermined period of α seconds has elapsed while the communication state remains in the provisional detection state (S118). This step is executed by the function of the pre-charging power storage side abnormality detection processing unit 224.

  If it is determined in S118 that the predetermined period α seconds has not elapsed in the state of temporary detection, it is determined whether or not the communication state with the charging-side control unit 30 has returned to normal communication (S122). ). This step is executed by the function of the pre-charging power storage side abnormality detection processing unit 224. If it is determined in S122 that the communication state with the charging-side control unit 31 has returned to normal communication, the process proceeds to return processing. If it is determined in S120 that the communication state with the charging-side control unit 30 has not returned to normal communication, the process returns to S118 again.

  In S118, if it is determined that the predetermined period α seconds has elapsed in the state of provisional detection, the communication state with the charging-side control unit 31 is determined as a communication abnormality, and the control of the charging mode sequence control is performed. The process ends (S120). This step is executed by the function of the pre-charging power storage side sequence control processing unit 226. After S120, the process proceeds to return processing.

  Next, with reference to FIG. 5B, when the charging side control unit 31 determines a communication abnormality with the power storage side control unit 21 before the start of charging, the sequence control is terminated so as to prevent deadlock. The procedure will be described. As shown in FIG. 5B, the charging-side control unit 31 determines whether or not it is in a charging start mode for charging the power storage device 102 from the charger 202 (S140). This step is executed by the function of the charging side charging mode determination processing unit 322. If it is determined in S140 that the charging start mode is not set, the process proceeds to return processing.

  If it is determined in S140 that the charging start mode is set, the charging-side control unit 31 determines whether or not a communication abnormality with the power storage-side control unit 21 has been temporarily detected (S142). This step is executed by the function of the pre-charging-side abnormality detection processing unit 324.

  If it is determined in S142 that a communication abnormality with the power storage side control unit 21 is not temporarily detected, the charging mode sequence control is started (S150). This step is executed by the function of the pre-charge-side sequence control processing unit 326. Thereafter, the process proceeds to return processing.

  In S142, if it is determined that a communication abnormality is temporarily detected with the power storage side control unit 21, it is determined whether or not a predetermined period of time α seconds has elapsed while the communication state is still temporarily detected ( S144). This step is executed by the function of the pre-charging-side abnormality detection processing unit 324.

  If it is determined in S144 that the predetermined period α seconds has not elapsed in the state of temporary detection, it is determined whether or not the communication state with the power storage side control unit 21 has returned to normal communication (S146). ). This step is executed by the function of the pre-charging-side abnormality detection processing unit 324. If it is determined in S146 that the communication state with the power storage side control unit 21 has returned to normal communication, the process proceeds to S150. If it is determined in S146 that the communication state with the power storage side control unit 21 has not returned to normal communication, the process returns to S144 again.

  In S144, if it is determined that the predetermined period α seconds has elapsed in the state of provisional detection, the communication state with the power storage side control unit 21 is determined as a communication abnormality, and charging mode sequence control is started. Control is terminated without performing it (S148). This step is executed by the function of the pre-charge-side sequence control processing unit 326. After S148, the process proceeds to return processing.

  As described above, according to the charging control system 11, when a communication abnormality between the power storage side control unit 20 and the charging side control unit 30 is determined before the start of charging, the control is terminated so as not to cause a control abnormality. Therefore, it is possible to prevent a control abnormality in sequence control when a communication abnormality occurs between the power storage side control unit 20 and the charging side control unit 30 during charging.

  10, 11 Charge control system, 12 Communication line, 14, 16, 18 Control line, 20, 21 Power storage side control unit, 23, 24, 27 Positive side line, 25, 26, 29 Negative side line, 30, 31 Charge side Control unit, 40 power supply unit, 50 external charging cable unit, 52 connector, 54 CCID, 56 plug, 100 power storage device side circuit, 102 power storage device, 103 power storage side relay circuit unit, 104 first relay circuit unit, 106 relay, 107 2nd relay circuit part, 108 resistance element, 110 3rd relay circuit part, 112 power storage side capacitor, 114 DC / DC converter circuit, 116 A / C circuit, 118 step-up / down converter circuit, 120 first inverter circuit, 122 second Inverter circuit, 124 1st motor generator, 126 2nd motor generator 200 charging device side circuit, 202 charger, 204 charging side capacitor, 205 charging side relay circuit unit, 206 first relay circuit unit, 207 inlet, 208 second relay circuit unit, 210 charging power storage side control abnormality prevention unit, 212 Charging power storage side abnormality detection processing unit, 214 Charging power storage side charging stop processing unit, 216 Charging power storage side relay cutoff processing unit, 218 Charging power storage side power supply cutoff processing unit, 220 Pre-charging power storage side control abnormality prevention unit, 222 Storage-side charge mode determination processing unit, 224 Storage-side abnormality detection processing unit before charging, 226 Storage-side sequence control processing unit before charging, 310 Charging-side control abnormality prevention unit during charging, 312 Charging-side abnormality detection processing unit during charging, 314 charging Middle charging side charging stop processing unit, 316 Charging side relay cutoff processing unit, 318 charging side power cutoff processing unit during charging 320 precharge charge side control abnormality preventing section, 322 charge side charge mode determination processing unit 324 before charging the charge side communication abnormality detection unit, 326 charge before the charge side sequence control unit.

Claims (6)

A power storage side control unit that performs sequence control of a power storage device side circuit including the power storage device;
The charging side control unit that performs sequence control of the charging device side circuit including the charging device and performs mutual communication with the power storage side control unit,
During the charging from the charging device to the power storage device, when a communication abnormality is detected between the power storage side control unit and the charging side control unit, at least one of the power storage side control unit and the charging side control unit is the other A control abnormality prevention unit that performs sequence control so as to prevent the control abnormality by estimating the progress state of the sequence control;
A power supply unit for supplying power to at least the charging side control unit,
The power storage device side circuit has a power storage side relay circuit unit connected to the power storage device on one side,
The charging device side circuit has a charging side relay circuit unit, one side of which is connected to the charging device and the other side is connected to the other side of the storage side relay circuit unit,
The control abnormality prevention unit
In the storage-side control unit, the charging-side control unit detects a communication abnormality with the charging-side control unit and determines the communication abnormality,
In the charging side control unit, the charging side abnormality detection unit during charging that detects a communication abnormality with the power storage side control unit and determines the communication abnormality;
A charging storage side charging stop unit that stops power supply from the charging device to the power storage device when a communication abnormality is determined by the charging storage side abnormality detection unit;
When a communication abnormality is confirmed by the charging side abnormality detection unit during charging, a charging side charging stop unit during charging that stops the power supply from the charging device to the power storage device, and
When it is determined that the stop of power supply from the charging device to the power storage device has been completed after the communication abnormality is determined by the power storage side abnormality detection unit during charging, the power storage device side circuit and the charging device side circuit have accumulated. A charging-side storage-side relay cutoff unit that discharges charges and shuts off the storage-side relay circuit unit; and
When it is determined that the discharge of charge accumulated in the storage device side circuit and the charging device side circuit and the interruption of the storage side relay circuit unit are completed after the communication abnormality is determined by the charging side abnormality detection unit during charging, The charging side relay cutoff part during charging to cut off the charging side relay circuit part,
When it is determined that the charging-side relay circuit unit has been shut off after the communication abnormality is confirmed by the charging-side abnormality detecting unit during charging, a charging power source cutoff unit that shuts off the power source unit,
Charge control system according to claim Rukoto to have a. The charge control system according to claim 1,
The charging power storage side relay cutoff unit completes the stop of power supply from the charging device to the power storage device when the first time has elapsed after the communication abnormality is determined by the charging power storage side abnormality detection unit. And
The charging-side relay cutoff unit during charging is configured such that when a second time that is longer than the first time has elapsed after the communication abnormality is determined by the charging-side abnormality detection unit during charging , It is determined that the discharge of the charge accumulated in the charging device side circuit and the interruption of the storage side relay circuit unit are complete,
The charging- side power cutoff unit shuts off the charging-side relay circuit unit when a third time that is longer than the second time elapses after the communication abnormality is determined by the charging-side abnormality detection unit during charging. charge control system which is characterized that you determined to be completed. In the charge control system according to claim 2,
The first time is a sufficiently long time to stop the power supply from the charging device to the power storage device,
The second time is a sufficiently long time for discharging the electric charge accumulated in the power storage device side circuit and the charging device side circuit and shutting off the power storage side relay circuit portion,
The charging control system according to claim 3, wherein the third time is a sufficiently long time to cut off the charging-side relay circuit unit. The charge control system according to claim 1,
The charging power storage side relay cut-off unit supplies power from the charging device to the power storage device when the communication abnormality is determined by the charging power storage side abnormality detection unit and the current value flowing through the power storage device is below a predetermined threshold value. Determines that the suspension is complete,
The charging side relay cutoff unit during charging is connected to the power storage device side circuit and the charging device side circuit when the output voltage of the charging device is equal to or lower than a predetermined threshold after the communication abnormality is determined by the charging power storage side abnormality detection unit. charge control system which is characterized that you determined that blocking of the discharge and the storage-side relay circuit portion of the accumulated charge is completed. The charge control system according to claim 4,
The charging-side power supply shut-off unit is configured to turn off the charging-side relay circuit unit when a sufficiently long time has passed to shut off the charging-side relay circuit unit after a communication abnormality is determined by the charging-side charging side abnormality detection unit. charge control system which is characterized that you determined to be completed. The charge control system according to claim 1,
The control abnormality prevention unit
In the power storage side control unit, before starting charging from the charging device to the power storage device, a communication abnormality with the charging side control unit is detected, and the pre-charging power storage side abnormality detection unit for determining the communication abnormality,
When the communication abnormality is confirmed by the pre-charging power storage side abnormality detection unit, the pre-charging power storage side sequence control unit that ends the sequence control of the power storage side control unit;
In the charging side control unit, before starting charging from the charging device to the power storage device, it detects a communication abnormality with the power storage side control unit, and determines a communication abnormality before charging,
When a communication abnormality is determined by the pre-charging-side abnormality detection unit, the pre-charging-side sequence control unit that terminates the sequence control of the charging-side control unit, and
A charge control system comprising: