JP6856009B2 - Charging system - Google Patents

Description

The present invention relates to a charging system including a vehicle including an externally rechargeable battery and a charging facility for charging the battery included in the vehicle.

Patent Document 1 describes a battery that charges or discharges electric power used for traveling a vehicle, and whether or not quick charging is necessary to determine whether or not quick charging of the battery is necessary based on the past charge / discharge record of the battery. A vehicle including a control device that executes a determination process is described.

Japanese Unexamined Patent Publication No. 2012-90480

The vehicle described in Patent Document 1 executes a quick charge necessity determination process using only its own vehicle information. Therefore, according to the vehicle described in Patent Document 1, it may not be possible to appropriately determine whether or not quick charging of the battery is necessary depending on the condition of the charging equipment for charging the battery and the installation location.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a charging system capable of appropriately determining whether or not quick charging of a battery is necessary.

The charging system according to the present invention is a charging system including a vehicle provided with an externally rechargeable battery and a charging facility for charging the battery, and is provided on the vehicle side and requires rapid charging of the battery. The quick charge requirement calculation means for calculating the quick charge requirement, the quick charge tolerance calculation means for calculating the quick charge tolerance of the battery provided on the charging facility side, and the quick charge requirement from the quick charge tolerance. It is characterized by including a control means for starting quick charging of the battery when the size is large, and starting normal charging of the battery when the quick charging requirement is equal to or lower than the quick charging tolerance.

According to the charging system according to the present invention, is it necessary to carry out quick charging of the battery using the quick charging tolerance of the battery calculated on the charging equipment side in addition to the quick charging requirement of the battery calculated on the vehicle side? Since it is determined whether or not the battery needs to be charged quickly, it can be appropriately determined whether or not the battery needs to be charged quickly.

FIG. 1 is a block diagram showing a configuration of a charging system according to an embodiment of the present invention. FIG. 2 is a flowchart showing the flow of the quick charge necessity determination process according to the first embodiment of the present invention. FIG. 3 is a flowchart showing the flow of the quick charge necessity determination process according to the second embodiment of the present invention. FIG. 4 is a flowchart showing the flow of the quick charge necessity determination process according to the third embodiment of the present invention. FIG. 5 is a flowchart showing the flow of the quick charge necessity determination process according to the fourth embodiment of the present invention.

Hereinafter, the configuration and operation of the charging system according to the embodiment of the present invention will be described with reference to the drawings.

〔Constitution〕
First, the configuration of the charging system according to the embodiment of the present invention will be described with reference to FIG.

FIG. 1 is a block diagram showing a configuration of a charging system according to an embodiment of the present invention. As shown in FIG. 1, the charging system 1 according to the embodiment of the present invention includes a vehicle 2 and a charging facility 3 as main components.

The vehicle 2 is composed of a vehicle such as a PHV (Plug-in Hybrid Vehicle) or an EV (Electric Vehicle), and includes an external charging connector 21, a battery 22, and an ECU (Electronic Control Unit) 23.

The external charging connector 21 electrically connects the battery 22 and the charging equipment 3, and charges the battery 22 by supplying the electric power from the charging equipment 3 to the battery 22.

The battery 22 is composed of a secondary battery such as a nickel hydrogen battery or a lithium ion battery, and charges and discharges the electric power used by the vehicle 2. The battery 22 is charged using the electric power supplied from the charging equipment 3 or the electric power generated in the vehicle 2.

The ECU 23 is mainly composed of a microcomputer equipped with a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), etc., and executes various control programs stored in the ROM. Controls the operation of the vehicle 2.

In the present embodiment, the ECU 23 charges the normal battery 22 for a time (temporal) deviation from the normal charging time, a time from when the ignition switch is turned off until the external charging connector 21 is connected to the charging equipment 3. The parameter Prqi (i = 1 to n) for calculating the quick charging requirement such as the (distance) deviation from the charging equipment 3 that is charging and the past usage history of the charging equipment that normally charges the battery 22 is ROM or the like. It is stored in the storage device of. The ECU 23 may store the requirement calculation parameter Prqi (i = 1 to n) in a storage device capable of information communication via a telecommunication line.

The charging equipment 3 is equipment for charging the battery 22 by supplying electric power to the battery 22 included in the vehicle 2, and includes an arithmetic unit 31 capable of executing various arithmetic processes. The arithmetic unit 31 stores the parameters Ppq for calculating the quick charge tolerance such as the power that can be supplied, the number of chargers, and the operating status in a storage device such as a ROM.

The charging system 1 having such a configuration appropriately determines whether or not it is necessary to carry out quick charging of the battery 22 included in the vehicle 2 by executing the quick charging necessity determination processing shown below. Hereinafter, the operation of the charging system 1 when executing the quick charging necessity determination process according to the first to fourth embodiments of the present invention will be described with reference to FIGS. 2 to 5.

[First Embodiment]
First, with reference to FIG. 2, the operation of the charging system 1 when executing the quick charging necessity determination process according to the first embodiment of the present invention will be described.

FIG. 2 is a flowchart showing the flow of the quick charge necessity determination process according to the first embodiment of the present invention. The flowchart shown in FIG. 2 starts at the timing when the external charging connector 21 is connected to the charging equipment 3, and the quick charging necessity determination process proceeds to the process of step S1. The determination of whether or not the external charging connector 21 is connected to the charging equipment 3 is not limited to the method of detecting the physical connection, and may be performed by, for example, the method of detecting the start of non-contact power supply. Good.

In the process of step S1, the ECU 23 acquires the parameter Prqi (i = 1 to n) for calculating the quick charge requirement, and the battery 22 uses the acquired parameter Prqi (i = 1 to n) for calculating the quick charge requirement. The quick charge requirement Crq of is calculated. Then, the ECU 23 transmits the calculated information on the quick charge requirement Crq to the charging equipment 3. The ECU 23 may acquire the parameter Prqi (i = 1 to n) for calculating the quick charge requirement when the external charging connector 21 is connected to the charging facility 3, or may periodically acquire the quick charge requirement. The calculation parameter Prqi (i = 1 to n) may be acquired.

Specifically, the ECU 23 makes the quick charge requirement Crqi (i = 1 to n) have a one-to-one correspondence with the parameter Prqi (i = 1 to n) for calculating the quick charge requirement, as shown in Table 1 below. A map as shown (this example shows the relationship between the quick charge requirement calculation parameter Prq1 and the quick charge requirement Crq1) is prepared in advance for each quick charge requirement calculation parameter Prqi (i = 1 to n). The correspondence is described by a mathematical formula (function) as shown in the following mathematical formula (1).

Crqn = map (Prqi) (i = 1-n) ... (1)

In the case of Table 1, Crq1 = map (Prq1). Here, in the map shown in Table 1 above, it is assumed that the larger the value of the quick charge requirement Crq1, the higher the quick charge requirement. For example, in Table 1, the parameter Prq1 for calculating the degree of demand for quick charging may be divided into cases depending on the day of the week and the weather, such as the time when the external charging connector 21 is connected this time and the normal connection time (for example, the average value of the past predetermined days, etc.). However, it is not limited to once / day.) At this time, when the parameter Prq1 for calculating the quick charge requirement is 0, it can be assumed that the quick charge request is low because the connection time is as usual, so the value of the quick charge requirement Crq1 is set small. On the other hand, when it is later than the normal connection time, the quick charge requirement Crq1 is increased on the assumption that the time until the next operation is shorter than usual. Further, when the connection time is earlier than the normal connection time, it is interpreted that the vehicle 2 is scheduled to be used urgently, and the quick charge requirement Crq1 is increased.

By changing the map according to the individual usage pattern in this way, it is possible to suppress the occurrence of a situation in which the vehicle 2 is insufficiently charged and to suppress unnecessary rapid charging. The map value may be a fixed value, or the map value may be learned in association with the manual operation of the user. In addition, machine learning of map values may be performed from the area, family structure, usage pattern (commuting, school attendance, transportation, shopping, etc.), contract form with an electric company, etc. using big data or the like.

The map shown in Table 1 is a one-dimensional map for the sake of simplicity. For example, as shown in Table 2 below, one quick charge requirement Crq23 is calculated from the two quick charge requirement calculation parameters Prq2 and 3. It may be a two-dimensional map to be used, or a higher-order map (not shown). When the map is n-dimensional, the quick charge requirement Crqpi (i = 1 to n) has as many arguments as the number of the quick charge requirement calculation parameters Prqi (i = 1 to n), and the formula shown below ( It is expressed as 2).

Crqpi = map (Prqi) (i = 1 to n) ... (2)

Then, the ECU 23 variously combines the quick charge requirement Crqi (i = 1 to n) of each quick charge requirement calculation parameter Prqi (i = 1 to n) to m intermediate requirements Crqx (x = 1 to 1). m) is calculated, and the sum of m intermediate requirement Crqx (x = 1 to m) is calculated as the quick charge requirement Crq of the battery 22 by using the following mathematical formula (3). Then, the ECU 23 transmits the calculated information on the quick charge requirement Crq to the charging equipment 3. As a result, the process of step S1 is completed, and the quick charge necessity determination process proceeds to the process of step S2.

Crq = Crq1 + Crq2 + ... + Crqm ... (3)

In the process of step S2, the arithmetic unit 31 acquires the parameter Ppqi (i = 1 to n) for calculating the quick charge tolerance, and uses the acquired parameter Ppqi (i = 1 to n) for calculating the quick charge tolerance. The quick charge tolerance Cpq of the battery 22 is calculated. Specifically, the arithmetic unit 31 has a quick charge tolerance Cpqi (i = 1 to n) with respect to the parameter Ppqi (i = 1 to n) for calculating the quick charge tolerance, similar to the method for calculating the quick charge requirement Crq. ) Are prepared in advance for each of the parameters Ppqi (i = 1 to n) for calculating the quick charge tolerance, and the parameters Ppqi (i = 1 to n) for calculating each quick charge tolerance are prepared from the map. The quick charge tolerance Cpqi (i = 1 to n) is read out, and m quick charge tolerance Cpqi (i = 1 to n) of each quick charge tolerance calculation parameter Ppqi (i = 1 to n) are combined in various ways. The intermediate tolerance Cpqx (x = 1 to m) of is calculated, and the sum of m intermediate tolerances Cpqx (x = 1 to m) is calculated using the formula (4) shown below to obtain the quick charge tolerance of the battery 22. Calculated as Cpq. The arithmetic unit 31 may acquire the parameter Ppqi (i = 1 to n) for calculating the quick charge tolerance when the external charging connector 21 is connected to the charging equipment 3, and may periodically perform quick charging. The tolerance calculation parameter Ppqi (i = 1 to n) may be acquired. Further, the process of step S2 may be executed by the ECU 23 by acquiring the parameter Ppqi (i = 1 to n) for calculating the quick charge tolerance from the charging equipment 3. As a result, the process of step S2 is completed, and the quick charge necessity determination process proceeds to the process of step S3.

Cpq = Cpq1 + Cpq2 + ... + Cpqm ... (4)

In the process of step S3, the arithmetic unit 31 compares the quick charge requirement Crq transmitted from the vehicle 2 side by the process of step S1 with the quick charge tolerance Cpq calculated in the process of step S2, and requests the quick charge. It is determined whether or not the degree Crq is larger than the quick charge tolerance Cpq. The process of step S3 may be executed by the ECU 23. As a result of the determination, when the quick charge requirement Crq is larger than the quick charge tolerance Cpq (step S3: Yes), the arithmetic unit 31 proceeds to the quick charge necessity determination process in step S4. On the other hand, when the quick charge requirement Crq is equal to or less than the quick charge tolerance Cpq (step S3: No), the arithmetic unit 31 advances the quick charge necessity determination process to the process of step S5.

In the process of step S4, the charging equipment 3 starts the quick charging of the battery 22 of the vehicle 2. As a result, the process of step S4 is completed, and a series of quick charge necessity determination processes is completed.

In the process of step S5, the charging equipment 3 notifies the driver (user) of the vehicle 2 that the quick charge of the battery 22 of the vehicle 2 cannot be performed, and starts normal charging of the battery 22 of the vehicle 2. As a result, the process of step S5 is completed, and a series of quick charge necessity determination processes is completed.

As is clear from the above description, according to the quick charge necessity determination process according to the first embodiment of the present invention, the charging system 1 sets the quick charge requirement Crq of the battery 22 calculated on the vehicle 2 side. In addition, since it is determined whether or not the quick charge of the battery 22 is necessary by using the quick charge tolerance Cpq of the battery 22 calculated on the charging equipment 3 side, whether or not the quick charge of the battery 22 is necessary. Can be judged appropriately. Further, as a result, unnecessary rapid charging is reduced, so that the burden on the power grid can be reduced and unnecessary deterioration of the battery 22 can be suppressed.

[Second Embodiment]
Next, with reference to FIG. 3, the operation of the charging system 1 when executing the quick charging necessity determination process according to the second embodiment of the present invention will be described.

FIG. 3 is a flowchart showing the flow of the quick charge necessity determination process according to the second embodiment of the present invention. The flowchart shown in FIG. 2 starts at the timing when the external charging connector 21 is connected to the charging equipment 3, and the quick charging necessity determination process proceeds to the process of step S11. In this embodiment, the number of the requirement calculation parameter and the tolerance calculation parameter is both one, and it is assumed that the battery 22 is charged at home.

In the process of step S11, the charging equipment 3 determines whether or not the quick charging or the normal charging of the battery 22 is selected within a predetermined time after the external charging connector 21 is connected to the charging equipment 3. As a result of the determination, when the quick charge or the normal charge of the battery 22 is not selected (step S11: Yes), the quick charge necessity determination process proceeds to the process of step S13. On the other hand, when the quick charge or the normal charge of the battery 22 is selected (step S11: No), the quick charge necessity determination process proceeds to the process of step S12.

In the process of step S12, the charging equipment 3 charges the battery 22 according to the selection operation contents of the quick charge or the normal charge of the battery 22. As a result, the process of step S12 is completed, and a series of quick charge necessity determination processes is completed.

In the process of step S13, the ECU 23 acquires information on the difference (time difference) between the time when the external charging connector 21 is connected this time and the normal connection time acquired by learning or the like as the parameter Prq for calculating the quick charging requirement. For example, the quick charge requirement Crq is calculated by reading the quick charge requirement Crq corresponding to the parameter Prq for calculating the quick charge requirement from the map shown in Table 3 below. In the map shown in Table 3, the quick charge requirement Crq is set high in a time zone away from the normal connection time acquired by learning or the like. This is to increase the demand for quick charging when charging is required due to, for example, forgetting to connect the external charging connector 21 or urgent use. Then, the ECU 23 transmits the calculated information on the quick charge requirement Crq to the charging equipment 3. As a result, the process of step S13 is completed, and the quick charge necessity determination process proceeds to the process of step S14.

In the process of step S14, the arithmetic unit 31 acquires the information of the time when the external charging connector 21 is connected this time as the parameter Ppq for calculating the quick charging tolerance, and calculates the quick charging tolerance from the map shown in Table 4 below, for example. Read the quick charge tolerance Cpq corresponding to the parameter Ppq. In the map shown in Table 4, the quick charge tolerance Cpq is set so that the faster the connection time is before the end time of the night charge time zone, the faster the charge is allowed. As a result, the process of step S14 is completed, and the quick charge necessity determination process proceeds to the process of step S15.

In the process of step S15, the arithmetic unit 31 determines, for example, the quick charge requirement Crq transmitted from the ECU 23 in the process of step S13 and the quick charge tolerance Cpq calculated in the process of step S14 from the map shown in Table 5 below. The quick charge execution degree Crp is calculated by reading out the quick charge execution degree Crp corresponding to. As a result, the process of step S15 is completed, and the quick charge necessity determination process proceeds to the process of step S16.

In the process of step S16, the arithmetic unit 31 determines whether or not the rapid charge execution degree Crp calculated in the process of step S15 is larger than the predetermined value Cs (for example, 1.0). The predetermined value Cs may be a fixed value or may be changed according to the temperature of the battery 22 and the remaining charge. As a result of the determination, when the rapid charge execution degree Crp is larger than the predetermined value Cs (step S16: Yes), the arithmetic unit 31 advances the rapid charge necessity determination process to the process of step S17. On the other hand, when the rapid charge execution degree Crp is equal to or less than the predetermined value Cs (step S16: No), the arithmetic unit 31 proceeds to the process of step S18 for the rapid charge necessity determination process.

In the process of step S17, the charging equipment 3 starts the quick charging of the battery 22 of the vehicle 2. As a result, the process of step S17 is completed, and a series of quick charge necessity determination processes is completed.

In the process of step S18, the charging equipment 3 notifies the driver (user) of the vehicle 2 that the quick charge of the battery 22 of the vehicle 2 cannot be performed, and starts normal charging of the battery 22 of the vehicle 2. The notification to the driver of the vehicle 2 may be given at the time of quick charging, or the negative operation of the driver of the vehicle 2 may be accepted for a predetermined time after the notification. If there is no negative operation, the result of the determination process in step S16 is followed, and if there is a negative operation, the operation of the driver of the vehicle 2 is followed. As a result, the process of step S18 is completed, and a series of quick charge necessity determination processes is completed.

As is clear from the above description, according to the quick charge necessity determination process according to the second embodiment of the present invention, the charging system 1 has the quick charge requirement Crq of the battery 22 calculated on the vehicle 2 side. Since it is determined whether or not the quick charging of the battery 22 is necessary based on the quick charging execution degree Crp obtained from the quick charging tolerance Cpq of the battery 22 calculated on the charging equipment 3 side, the quick charging of the battery 22 is performed. Can be appropriately determined whether or not it is necessary to carry out. Further, as a result, unnecessary rapid charging is reduced, so that the burden on the power grid can be reduced and unnecessary deterioration of the battery 22 can be suppressed.

[Third Embodiment]
Next, with reference to FIG. 4, the operation of the charging system 1 when executing the quick charging necessity determination process according to the third embodiment of the present invention will be described.

FIG. 4 is a flowchart showing the flow of the quick charge necessity determination process according to the third embodiment of the present invention. The flowchart shown in FIG. 4 starts at the timing when the external charging connector 21 is connected to the charging equipment 3, and the quick charging necessity determination process proceeds to the process of step S21. In this embodiment, the number of the requirement calculation parameter and the tolerance calculation parameter are both two, and it is assumed that the battery 22 is charged at a place other than the home.

In the process of step S21, the charging equipment 3 determines whether or not quick charging or normal charging of the battery 22 has been selected within a predetermined time after the external charging connector 21 is connected to the charging equipment 3. As a result of the determination, when the quick charge or the normal charge of the battery 22 is not selected (step S21: Yes), the quick charge necessity determination process proceeds to the process of step S23. On the other hand, when the quick charge or the normal charge of the battery 22 is selected (step S21: No), the quick charge necessity determination process proceeds to the process of step S22.

In the process of step S22, the charging equipment 3 charges the battery 22 according to the selection operation contents of the quick charge or the normal charge of the battery 22. As a result, the process of step S22 is completed, and a series of quick charge necessity determination processes is completed.

In the process of step S23, the ECU 23 uses the information on the difference (time difference) between the time when the external charging connector 21 is connected this time and the normal connection time acquired by learning or the like and the information on the day of the week for calculating the demand for quick charging. The quick charge requirement Crq is calculated by acquiring the parameter Prq and reading, for example, the quick charge requirement Crq corresponding to the quick charge requirement calculation parameter Prq from the map shown in Table 6 below. Then, the ECU 23 transmits the calculated information on the quick charge requirement Crq to the charging equipment 3. The map shown in Table 6 is obtained by adding the concept of days of the week including holidays to the map shown in Table 4, and it is possible to consider the difference in how the vehicle 2 is used on weekdays and holidays. As a result, the process of step S23 is completed, and the quick charge necessity determination process proceeds to the process of step S24.

In the process of step S24, the arithmetic unit 31 acquires the information of the time when the external charging connector 21 is connected this time and the information of the connection location (installation location of the charging equipment 3) as the parameter Ppq for calculating the quick charge tolerance. The quick charge tolerance Cpq is calculated by reading the quick charge tolerance Cpq corresponding to the parameter Ppq for calculating the quick charge tolerance from the maps shown in Table 4 above and Table 7 below. Table 7 is a quick charge tolerance map in which the installation location of the charging equipment 3 is a parameter Ppq for calculating the quick charge tolerance, and the quick charge tolerance is lowered in an amusement park or the like where parking is expected for a long time. This makes it difficult to enter quick charging, and in places such as dealers where short-time parking is expected, the quick charging tolerance is raised to actively perform quick charging. Then, the arithmetic unit 31 calculates the sum of the quick charge tolerance Cpq read from Tables 4 and 7 as the final quick charge tolerance Cpq. As a result, the process of step S24 is completed, and the quick charge necessity determination process proceeds to the process of step S25.

In the process of step S25, the arithmetic unit 31 sets the quick charge requirement Crq transmitted from the ECU 23 in the process of step S23 and the quick charge tolerance Cpq calculated in the process of step S24 from the map shown in Table 5 described above. The quick charge execution degree Crp is calculated by reading out the corresponding quick charge execution degree Crp. As a result, the process of step S25 is completed, and the quick charge necessity determination process proceeds to the process of step S26.

In the process of step S26, the arithmetic unit 31 determines whether or not the rapid charge execution degree Crp calculated in the process of step S25 is larger than the predetermined value Cs. As a result of the determination, when the rapid charge execution degree Crp is larger than the predetermined value Cs (step S26: Yes), the arithmetic unit 31 advances the rapid charge necessity determination process to the process of step S27. On the other hand, when the rapid charge execution degree Crp is equal to or less than the predetermined value Cs (step S26: No), the arithmetic unit 31 proceeds to the process of step S28 for the rapid charge necessity determination process.

In the process of step S27, the charging equipment 3 starts the quick charging of the battery 22 of the vehicle 2. As a result, the process of step S27 is completed, and a series of quick charge necessity determination processes is completed.

In the process of step S28, the charging equipment 3 notifies the driver (user) of the vehicle 2 that the quick charge of the battery 22 of the vehicle 2 cannot be performed, and starts normal charging of the battery 22 of the vehicle 2. As a result, the process of step S28 is completed, and a series of quick charge necessity determination processes is completed.

As is clear from the above description, according to the quick charge necessity determination process according to the third embodiment of the present invention, the charging system 1 has the quick charge requirement Crq of the battery 22 calculated on the vehicle 2 side. Since it is determined whether or not the quick charging of the battery 22 is necessary based on the quick charging execution degree Crp obtained from the quick charging tolerance Cpq of the battery 22 calculated on the charging equipment 3 side, the quick charging of the battery 22 is performed. Can be appropriately determined whether or not it is necessary to carry out. Further, as a result, unnecessary rapid charging is reduced, so that the burden on the power grid can be reduced and unnecessary deterioration of the battery 22 can be suppressed.

[Fourth Embodiment]
Finally, with reference to FIG. 5, the operation of the charging system 1 when executing the quick charging necessity determination process according to the fourth embodiment of the present invention will be described.

FIG. 5 is a flowchart showing the flow of the quick charge necessity determination process according to the fourth embodiment of the present invention. The flowchart shown in FIG. 5 starts at the timing when the external charging connector 21 is connected to the charging equipment 3, and the quick charging necessity determination process proceeds to the process of step 31. Since the processing contents of steps S31 to S35 shown in FIG. 5 are the same as the processing contents of steps S1 to S5 shown in FIG. 2, the description thereof will be omitted below, and the description will be started from the processing of step S36. .. The process of step S36 starts at the timing when the process of step S34 or step S35 is completed.

In the process of step S36, the charging equipment 3 determines whether or not the charging of the battery 22 is completed, or whether or not the external charging connector 21 is removed from the charging equipment 3. As a result of the determination, when the charging of the battery 22 is completed or the external charging connector 21 is removed from the charging equipment 3 (step S36: Yes), the charging equipment 3 performs the quick charging necessity determination process in step S37. Proceed to processing. On the other hand, in other cases (step S36: No), the charging equipment 3 executes the process of step S36 again after the predetermined time has elapsed.

In the process of step S37, the charging equipment 3 calculates the actual charge amount of the battery 22 and compares the actual charge amount of the battery 22 with the expected charge amount of the battery 22 at the start of charging. Then, the charging equipment 3 tentatively corrects the calculation formula of the quick charge requirement Crq based on the comparison result. Further, the charging equipment 3 machine-learns the calculation formula of the quick charge tolerance Cpq using the information of the charging equipment 3 and the like, and appropriately modifies the calculation formula of the quick charge tolerance Cpq based on the machine learning result. Further, the charging equipment 3 uses the calculation formula of the quick charge requirement Crq after the provisional correction and the calculation formula of the quick charge tolerance Cpq corrected by machine learning to determine the charge amount of the battery 22 according to the current charging time. Predict and determine if you will reach your goals. Then, the charging equipment 3 calculates the actual correction amount of the calculation formula of the quick charge requirement Crq, and updates the calculation formula of the quick charge requirement Crq. As a result, the process of step S37 is completed, and a series of quick charge necessity determination processes is completed.

As is clear from the above description, according to the quick charge necessity determination process according to the fourth embodiment of the present invention, the charging system 1 has a calculation formula (function) of the quick charge tolerance Cpq and the quick charge requirement Crq. ) Is appropriately modified, so that the accuracy of determining whether or not the battery 22 needs to be quickly charged can be maintained high.

Although the embodiment to which the invention made by the present inventors has been applied has been described above, the present invention is not limited by the description and the drawings which form a part of the disclosure of the present invention according to the present embodiment. That is, other embodiments, examples, operational techniques, and the like made by those skilled in the art based on the present embodiment are all included in the scope of the present invention.

1 Charging system 2 Vehicle 3 Charging equipment 21 External charging connector 22 Battery 23 ECU (Electronic Control Unit)
31 Arithmetic logic unit

Claims (1)

A charging system including a vehicle equipped with an externally rechargeable battery and a charging facility for charging the battery.
A quick charge demand calculation means for calculating the quick charge demand of the battery provided on the vehicle side and
A quick charge tolerance calculation means for calculating the quick charge tolerance of the battery provided on the charging equipment side, and a quick charge tolerance calculation means.
When the quick charge requirement is larger than the quick charge tolerance, the battery is started to be charged quickly, and when the quick charge requirement is equal to or less than the quick charge allowance, the normal charge of the battery is started. Control means and
A charging system characterized by being equipped with.

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