JP5498193B2 - Vehicle charging power management system - Google Patents

Description

  The present invention relates to a vehicle charging power management system that controls charging of an electric vehicle.

Conventionally, when an EV (Electric Vehicle) is charged in a general house, the EV is charged together with home electric appliances within a contract current range of the breaker. In this case, the controller uses communication such as PLC (Power Line Communications) to communicate with the vehicle and the home electrical device in order to acquire information on the power consumption of the home electrical device and the charging power of the EV.
Conventionally, the cruising range for EV charging has been confirmed with a trip meter of the vehicle.

JP 2008-136291 A

By the way, in the EV charging of ordinary houses, the power consumption of household electric appliances increases, and the breaker falls when the contract current is exceeded. Therefore, when the amount of charge of the EV is reduced so that the breaker does not fall when the power usage of the home appliance increases, the completion of the EV charge is delayed.
Therefore, if the contract current is increased so that the breaker does not fall, the inconvenience that the basic charge of power increases.
On the other hand, when charging is performed regardless of day or night, the charging cost during the daytime is higher than that at night.

Furthermore, there is a phenomenon that the battery is likely to deteriorate when charged with a large current when the temperature of the EV battery is low or high.
Further, since communication is performed using a PLC or the like, the controller needs to add a communication circuit, leading to an increase in cost, and it is difficult to make all household electric appliances compatible with communication.
Further, the cruising distance for EV charging is confirmed by a trip meter of the vehicle, but there is no way to grasp the cruising distance at the current charge amount on the controller or charger side during charging.

  In view of the above circumstances, an object of the present invention is to provide a vehicle charging power management system capable of optimally and flexibly charging an electric vehicle.

In order to achieve the above object, a vehicle charging power management system according to claim 1 of the present invention splits the power supplied to a building into a building power load and a power storage of an electric vehicle storage device, and the building power load. A vehicle charging power management system that adjusts and distributes the first electric power to the electric vehicle and the electric energy of the second electric power to the electric vehicle storage battery, and when charging the electric vehicle storage battery, a plurality of charging modes are provided. Charging mode selection means that allows the operator to select one of the charging mode, and charging the electric vehicle storage device from the supplied power by the charging device from the supplied power based on the charging mode selected by the charging mode selection means and control means for performing, wherein the plurality of charging modes, the electric vehicle priority mode is set, in the electric vehicle priority mode, said control means is supplied to the building The electric vehicle storage battery is charged with a first current obtained by subtracting the use current of the power load in the building from an allowable current value, and the first current is allowable for charging the electric vehicle storage battery. Informing means for informing the operator whether or not the first charging current that is the fastest possible charging time before full charging has been reached is provided .
According to the vehicle charging power management system of claim 1, the operator can select a charging method for the electric vehicle in accordance with the purpose, the situation, etc. according to the usage status of the in-building power load, the driving plan of the electric vehicle, and the like. .
In addition, the electric vehicle can be charged in the fastest time. Moreover, since the notification means which notifies an operator whether the 1st electric current became the 1st charging current used as the fastest charging time is provided, an operator reduces use of the electric power load in a building actively. The charging of the electric vehicle can be accelerated.

The vehicle charging power management system according to claim 2 of the present invention is the vehicle charging power management system according to claim 1, wherein a home appliance priority mode is set in the plurality of charging modes, and in the home appliance priority mode, the control means includes: The electric vehicle capacitor is charged with a second current obtained by subtracting a predetermined maximum current set for use of the power load in the building from an allowable value of the current supplied to the building . .
According to the vehicle charging power management system of claim 2, charging can be performed according to the power load in the building such as air conditioning according to the season, and it can be set accurately for each season.

The vehicle charging power management system according to claim 3 of the present invention branches the power supplied to the building into the building power load and the power storage of the electric vehicle storage device, and the first power to the building power load and the power A vehicle charging power management system that adjusts and distributes the amount of second electric power to the electric vehicle storage battery, and when charging the electric vehicle storage battery, the operator selects one of a plurality of charging modes. Charging mode selection means that can be selected by the charging mode, and control means for charging the electric vehicle storage device by the charging device from the supplied power based on the charging mode selected by the charging mode selection means. , wherein the plurality of charging modes, home appliances priority mode is set, in the home electronics priority mode, said control means, from the allowable value of the current supplied to the building, in the building The second current obtained by subtracting a predetermined maximum current set for the use of force load, is charging the storage capacitor the electric vehicle.
According to the vehicle charging power management system of the third aspect, charging can be performed according to the power load in the building such as air conditioning according to the season, and it can be accurately set for each season.

A vehicle charging power management system according to a fourth aspect of the present invention is the vehicle charging power management system according to the second or third aspect, further comprising temperature measuring means for measuring a temperature of the electric vehicle storage battery, and the plurality of charging modes. Is set to a deterioration-suppressing charging mode, and in the deterioration-suppressing charging mode, the control means determines whether or not the temperature measured by the temperature measuring means is in a temperature range in which the electric vehicle storage battery deteriorates. If the current is in the temperature range, the charging current to the electric vehicle storage battery is set to a predetermined deterioration prevention current that does not cause deterioration in the electric vehicle storage battery, but not in the temperature range. In this case, the charging current for the electric vehicle storage battery is the second current set in the home appliance priority mode.
According to the vehicle charging power management system of the fourth aspect, it is possible to prevent deterioration of the electric vehicle storage battery with a simple configuration.

The vehicle charging power management system according to claim 5 of the present invention is the vehicle charging power management system according to claim 1 or 2 , wherein the time for charging is low and the price of power supplied to the building from the outside is low. Night power determination means for determining whether or not it is a night power time, a cost priority mode is set in the plurality of charging modes, and in the cost priority mode, the control means is the night power determination means Thus, when it is determined that the time for charging is the nighttime power time, the charging current to the electric vehicle storage battery is set as the first current set in the electric vehicle priority mode. When it is determined that it is not the night electric power time, the electric vehicle storage battery is not charged.
According to the vehicle charging power management system of the fifth aspect, the cost for charging can be reduced.

The vehicle charging power management system according to claim 6 of the present invention is the vehicle charging power management system according to claim 1, 2, or 5 , wherein a charging current setting mode is set in the plurality of charging modes, In the charging current setting mode, the control means sets the charging current to the electric vehicle storage battery within a range equal to or lower than the first charging current, and is set by the operator or the first charging current. If the smaller one of the currents or the both currents are equal, the current is used.
According to the vehicle charging power management system of the sixth aspect, the charging current can be adjusted and set according to the usage state of the in-building power load.

The vehicle charging power management system according to claim 7 of the present invention is the vehicle charging power management system according to any one of claims 1 to 6, wherein the electric vehicle capacitor is charged when charging the electric vehicle capacitor. The cruising range display means for displaying the cruising range of the electric vehicle with respect to the amount of charge to the vehicle is provided.
According to the vehicle charging power management system of the seventh aspect, charging can be stopped at a timing when a necessary cruising distance is secured.
The vehicle charging power management system according to an eighth aspect of the present invention is the vehicle charging power management system according to any one of the first to fifth aspects, wherein there are a plurality of the electric vehicle capacitors, and the plurality of electric vehicle capacitors. The charging current to be charged is a current having a magnitude obtained by equally dividing the charging current according to any one of claims 1 to 5, or a sum of current values at the time of charging is defined from claims 1 to 5. 5 is set by the operator so as to be equal to or less than the magnitude of the charged current described in 5.
According to the vehicle charging power management system of the eighth aspect, when charging a plurality of vehicles, the current value of each charging can be set within a range in which the breaker of the power supply destination building does not fall. Therefore, since a plurality of vehicles try to draw current at the maximum, it is possible to prevent a phenomenon that the breaker falls due to overcurrent.

  ADVANTAGE OF THE INVENTION According to this invention, the vehicle charge electric power management system which can charge to an electric vehicle optimally and flexibly is realizable.

It is a system configuration figure showing a vehicle charge power management system of an embodiment concerning the present invention. It is a conceptual diagram which shows the relationship between the battery of the electric vehicle at the time of charge of embodiment, and the charging gun of a charging cable. It is a figure which shows the operation panel of the controller of embodiment. It is a figure showing the relationship between the duty ratio of the CPL signal of embodiment, and the magnitude | size of the charging current charged to the battery of EV. It is a flowchart which shows the main control of a vehicle charging power management system. It is a flowchart which shows the timer interruption control of a vehicle charging power management system. It is a flowchart which shows the flow of control of "EV priority" which is the charge mode to the battery of EV of a vehicle charging power management system. It is a flowchart which shows the flow of control of the "home appliance priority" which is the charge mode to the battery of EV of a vehicle charging power management system. It is a flowchart which shows the flow of control of the "battery long life" which is the charge mode to the battery of EV of a vehicle charging power management system. It is a flowchart which shows the flow of control of the "cost minimum" which is the charge mode to the battery of EV of a vehicle charging power management system. It is a flowchart which shows the flow of control of "charging current setting" which is the charge mode to the battery of EV of a vehicle charging power management system.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a system configuration diagram showing a vehicle charging power management system S according to an embodiment of the present invention.
Electricity of a general house (building) is converted from electricity supplied from a power plant to a predetermined voltage (for example, AC 100V) by a transformer or the like, and transmitted through a lead-in line h1 through a watt hour meter (not shown). Supplied to the breaker 1. The breaker 1 includes an ampere breaker that cuts off a current equal to or greater than the contract current (I-br), a leakage breaker that cuts off the current in the event of a leakage, a safety breaker that provides a rated current, and the like.

  The electricity supplied to the breaker 1 is supplied to the household electric appliance 2 such as a refrigerator, a TV, and a lighting, and at the same time, charging the battery (electric vehicle storage battery) 6v of the electric vehicle 6 (hereinafter referred to as EV6) is turned on. It is supplied to the charging cable connecting part 4 of the home controller H5 via the charging on / off switch 3 to be turned off / off. Note that the charging cable connecting portion 4 or the like is a general residential outlet or the like for connecting the charging cable 4c so that the user can charge the EV 6.

<Vehicle Charging Power Management System S of Embodiment>
The vehicle charging power management system S according to the embodiment is a system for branching and controlling the electric power supplied to the home electrical device 2 and the charging of the battery 6v of the EV6 in order to charge the battery 6v of the EV6 in the house. It is.
When the vehicle charging power management system S charges the battery 6v of the EV 6, the user (operator) turns on / off the charging cable connecting portion 4 to which the charging cable 4c is connected and the charging cable connecting portion 4 or the like. On / off switch 3 for charging to be turned off, controller 5 for controlling vehicle charging power management system S, current measuring instrument i1 for measuring current I-home used by home electric appliance 2, charging cable connection portion 4 and the like 4 A current measuring device i2 for measuring the charging current I-EV supplied from the battery 6v to the EV6 battery 6v, a voltage measuring device v1 for measuring the voltage applied to the breaker 1, and a temperature sensor for measuring the ambient temperature of the EV 6 for charging. s1.

The temperature sensor s1 may be an NTC (Negative Temperature Coefficient) thermistor or a sensor that utilizes the thermal expansion of a fluid, but is not limited. In the vehicle charging power management system S, the temperature measured by the temperature sensor s1 is regarded as the temperature around the battery 6v of the EV 6 that performs charging.
Here, the above-described charging cable connection section 4, charging on / off switch 3, current measuring device i 2, and controller 5 that controls the vehicle charging power management system S charge EV 6, which is called a home controller H 5. It is a control device for controlling.
The home controller H5 and the charging cable 4c used when the user charges the EV 6 communicate with the controller 5 of the home controller H5 and the controller (not shown) of the charging cable 4c, respectively, so that information can be communicated. Has a part.
FIG. 2 is a conceptual diagram showing the relationship between the battery 6v of the EV 6 and the charging gun 4g of the charging cable 4c during charging.
The EV 6 includes an energy source battery 6v and an in-vehicle charger 6j of an AC / DC converter that converts and controls a charging AC voltage into a predetermined DC voltage for charging the battery 6v.
When charging the battery 6v of the EV 6, a CPL signal described later is sent from the charging gun 4g of the charging cable 4c to the in-vehicle charger 6j, and the in-vehicle charger 6j is connected to the in-vehicle charger from the charging gun 4g according to the duty ratio of the CPL signal. The limit value of the input current entering 6j is controlled, and the battery 6v is charged.

<Controller 5>
The controller 5 that controls the vehicle charging power management system S includes a computer such as a PC (Programmable Computer), a circuit such as an interface circuit, a pulse width control circuit, and an interrupt control circuit, and a charging state of the battery 6v of the EV 6 as an operation unit. And an operation panel 7 (see FIG. 3) for operating the charging of the battery 6v of the EV 6 by the user. FIG. 3 is a diagram showing the operation panel 7 of the controller 5.

  The operation panel 7 includes a [user setting item] 7a, [current information] 7b, and an I-EV-max lamp 7d that is turned on when the maximum charging current of the battery 6v of the EV 6 is reached. The operation unit includes [setting item operation] 7c for the user to arbitrarily set a charging operation when the battery 6v of the EV 6 is charged.

[User setting item] 7a displays “charging mode” for displaying a charging mode selected by the user from among a plurality of charging modes of EV 6 and the maximum current used by home electric appliance 2 set by the user. “I-h-max”, “I-EV-max” that displays the maximum EV charging current set by the user, and “electricity cost” (km) indicating the travel distance km per unit electric energy (1 Wh) / Wh). As will be described later, the “electric cost” (km / Wh) is used to calculate a cruising distance (km) that is a distance that the EV 6 can travel from the charge amount (Wh) of the battery 6v of the EV 6.
FIG. 3 shows a case where the user selects a “EV priority” charging mode from among a plurality of charging modes.
Here, when the user selects a “battery high life” charging mode from among a plurality of charging modes in [User Setting Item] 7a of FIG. 3, the user sets a battery deterioration temperature and a deterioration prevention current (not shown). Is displayed so that can be set.

[Current information] 7b includes "I-home" indicating the current used by the home electric appliance 2 (see FIG. 1) at the current time point and "I-EV" indicating the charging current of the battery 6v of the EV6 in FIG. ”,“ W-EV ”indicating the charge power amount of the battery 6v of the EV6,“ W-EV (integration) ”indicating the integrated value of the charge power amount of the battery 6v of the EV6, and the current charge power of the battery 6v A “cruising distance” indicating the distance that the EV 6 can travel with the integrated value of the amount and an “EV ambient temperature” indicating the temperature around the battery 6v of the EV 6 to be charged are displayed.
Needless to say, the display of [current information] 7b may include other displays.

  [Operation of setting item] 7c includes an item selection button 7c1 for the user to select a desired setting item in the column of [User setting item] 7a, and the user in the setting item of the selected [User setting item] 7a. A “SELECT” button 7c2 that is pressed to select a desired numerical value, and an “ENTER” button that is pressed when the user determines the numerical value selected by the “SELECT” button 7c in the setting items of the [User Setting Item] 7a 7c3.

The controller 5 of this configuration is connected to an oscillation signal (CPL signal) having a pulse width indicating the magnitude of the current to be charged to the battery 6v of the EV6 based on the magnitude of the rated current that can be supplied to the battery 6v of the EV6. To the part 4.
The charging cable connection unit 4 or the like 4 that has received the CPL signal supplies the CPL signal and the AC voltage from the breaker 1 to the in-vehicle charger 6j to which the charging gun 4g of the charging cable 4c is connected as shown in FIG. As shown in FIG. 4, the on-vehicle charger 6j controls the limit value of the input current supplied according to the duty ratio of the CPL signal, and charges the battery 6v with a current corresponding to the duty ratio of the CPL signal. FIG. 4 is a diagram showing the relationship between the duty ratio of the CPL signal and the magnitude of the charging current value charged in the battery 6v of EV6.
Here, when the charging of the battery 6v is not started, the control is performed by not outputting the duty pulse signal of the CPL signal.

Next, various controls of the vehicle charging power management system S performed by the controller 5 will be described.
<Main control of vehicle charging power management system S>
The main control of the vehicle charging power management system S controlled by the controller 5 will be described with reference to FIG. 5 showing the flow of the main control.
In S01 of FIG. 5, the user connects the charging gun 4g of the charging cable 4c connected to the charging cable connecting portion 4 or the like to the EV 6, or the charging on / off switch 3 (FIG. 1). Control is started by turning on (see).

  Subsequently, since “charging mode?” Is displayed on the operation panel 7 (see FIG. 3) of the controller 5 (S02), the user selects the “user setting item” 7a “ Select "charging mode" and press the "SELECT" button 7c2 to select a plurality of charging modes: "EV priority", "lowest cost", "home appliance priority", "battery high life", or "charging current setting" ”Is selected, and the“ ENTER ”button 7c2 is pressed to determine (S03). Here, “EV priority” in the charging mode is a charging mode in which priority is given to charging the battery 6v of the EV 6, and “low cost” in the charging mode is a charging mode in which the cost of charging is minimized, and the charging mode “Home appliance priority” is a charging mode that prioritizes the use of the household electrical appliance 2, and “Battery high life” in the charging mode is a charging mode in which charging is performed so that the battery 6v of the EV 6 has a long life, The “charging current setting” in the charging mode is a charging mode in which the user arbitrarily sets the charging current to the battery 6v of the EV6.

Subsequently, the distance that the EV 6 can travel is displayed as an accumulated value of the current charging power amount of the battery 6v of the EV 6 in the “travelable distance” of the “current information” 7b on the operation panel 7 of FIG. 3 (S04). . Note that the calculation of the cruising range (km) in S04 is as follows:
EV6 battery 6v integrated power amount (charge amount) (Wh) x power consumption (km / Wh)
It is calculated using the following formula.

Subsequently, the current usage current of the home electric appliance 2 measured by the current measuring device i1 (see FIG. 1) is displayed in “I-home” of the “current information” 7b of the operation panel 7 shown in FIG. In addition, the current charging current to the battery 6v of the EV 6 measured by the current measuring device i2 (see FIG. 1) is displayed in “I-EV” of [Current Information] 7b. Also, W-home, which is the power used by the household electrical appliance 2, is displayed in [Current Information] 7b, and the charging power of the battery 6v of the EV 6 is displayed in “W-EV” of [Current Information] 7b. Is displayed. In addition, the integrated value of the amount of electric power charged in the battery 6v of the EV 6 is displayed in “W-EV (integrated)” of the “current information” 7b, and the voltage measuring device V1 (FIG. 1) is displayed in the “current information” 7b. V, which is the applied voltage of the breaker 1 measured in (see), is displayed (S05).
The above is the flow of main control by the controller 5 shown in FIG.

<Timer interrupt control of vehicle charging power management system S>
Next, timer interrupt control performed by the controller 5 during charging of the battery 6v of the EV 6 will be described with reference to FIG. 6 showing timer interrupt control.
The timer interrupt control is performed for the user to select a desired charging mode in the charging mode of [User Setting Item] 7a in FIG. 3 while the EV 6 is being charged.

In S11 of FIG. 6, when the user selects the charging mode of [User Setting Item] 7a with the item selection button 7c1 of the operation panel 7 of FIG. 3, a timer interruption is started. Then, the current measuring device i1 in FIG. 1 reads the current I-home used in the home electric appliance 2, and the current measuring device i2 reads the charging current I-EV being charged into the battery 6v of the EV 6 (S12). ). Then, the current used in the home electric appliance 2 is displayed in “I-home” of [current information] 7b shown in FIG. 3, and EV6 is displayed in “I-EV” of [user setting item] 7a. The charging current to the battery 6v is displayed (S13).
Subsequently, “charging mode?” Is displayed on the operation panel 7 of FIG. 3 and the user is notified of which charging mode is selected by voice or the like (S14).

Therefore, the user presses the “SELECT” button 7c2, and from among the charging modes “EV priority”, “cost lowest”, “home appliance priority”, “battery high life”, or “charging current setting”, A desired charging mode is selected, and the “ENTER” button 7c2 is pressed and determined (S15).
In S16, as will be described later, the duty ratio (see FIG. 4) of the CPL signal representing the charging current in the selected charging mode is set, and the battery 6v of EV6 is charged.
The above is the flow of the timer interrupt control shown in FIG.

<< Control of each charging mode >>
Next, control of each charging mode selected by the user in main control and timer interrupt control will be described.
As described above, as the charging mode for charging the battery 6v of the EV 6 in the vehicle charging power management system S, “EV priority” (electric vehicle priority mode) of the charging mode that gives priority to the charging of the battery 6v of the EV 6 , “Home appliance priority” (home appliance priority mode) in the charge mode that prioritizes the use of the household electrical appliance 2 and “Battery high life” (recharge for suppressing deterioration) in the charge mode for charging the battery 6v of the EV 6 to have a long lifetime. Mode), “cost lowest” (cost priority mode) in the charging mode that minimizes the cost of charging the battery 6v of the EV6, and “charging current” in the charging mode in which the user sets the charging current to the battery 6v of the EV6. “Setting” (charging current setting mode).

<"EV priority" charging mode>
“EV priority” in the charging mode that prioritizes charging to the EV 6, which is one of the charging modes, will be described with reference to FIG. 7 showing the control flow of “EV priority”.
When the user selects the “EV priority” mode on the operation panel 7 of FIG. 3, it is determined whether or not I-br-I-home <I-evmax in S21 of FIG.
Here, I-br: Contract current of breaker 1 (allowable value of current supplied to house (building)), I-home: Current used by household electrical equipment 2 (current used in load in house (building)) I-evmax: the maximum current (first charging current) that can be charged in the battery 6v of the EV6.
Note that (I-br-I-home) is the first current described in the claims.

When it is determined that I-br-I-home <I-evmax (Yes in S21 in FIG. 7), the process proceeds to S22, and the duty ratio of the CPL signal is changed to I-br (breaker 1 contract current) − A current value (see FIG. 4) obtained by the calculation of I-home (current used by the home electric appliance 2) is set.
In this case, the user is notified by voice that the charging current of the battery 6v of the EV 6 is not maximum, or is notified by blinking or turning off the I-EV-max lamp 7d of the operation panel 7 in FIG. As a result, the user is prompted to reduce the use of the home electric appliance 2, and the charging current of the battery 6v of the EV 6 is increased.

  In this way, by teaching the user that the charging current of the battery 6v of the EV 6 is not the maximum (not the fastest mode for charging the battery 6v of the EV 6), the user actively selects and uses the home electric appliance 2 The amount can be reduced and the battery 6v of the EV 6 can be charged quickly. On the other hand, unlike the present embodiment, when this process is performed by automatic control, the household electrical appliance 2 that turns off the switch is known only to a human (user), and thus the usage amount of any household electrical appliance 2 may be reduced. It becomes difficult to judge.

On the other hand, if it is determined in S21 of FIG. 7 that I-br-I-home <I-evmax is not satisfied (No in S21), the process proceeds to S23, and the charging current of the battery 6v of the EV6 is transferred to the battery 6v. The I-EV-max lamp 7d of the operation panel 7 in FIG. 3 is turned on to notify the user that the maximum current I-evmax that can be charged is reached, and the duty ratio of the CPL signal is set to the battery 6v of the EV6. Is set to a value corresponding to the maximum current I-evmax that can be charged (see FIG. 4) (S24). In this case, the battery 6v of the EV 6 is charged in the fastest charging mode.
The above is the flow of the “EV priority” charging mode shown in FIG.

  In the “EV priority” charging mode, the current obtained by calculating I-br (contract current of the breaker 1) −I-home (current used by the home electric appliance 2) as the value of the charging current of the battery 6v of the EV6 Or a value of I-evmax (maximum current that can be charged to the battery 6v of the EV6) is set to give priority to the charging of the battery 6v of the EV6.

<"Home appliance priority" charging mode>
Next, the “home appliance priority” charge mode, which is a charge mode that prioritizes the use of the household electrical appliance 2, will be described with reference to FIG.
In the charging mode of “home appliance priority”, the maximum current I-h-max (predetermined maximum current set for use of the power load in the building) is set in advance, and the breaker 1 In this mode, the remainder of I-br-I-h-max (second current) subtracted from the contract current (rated current) I-br is used to charge the battery 6v of the EV6. This charging mode gives priority to the use of

  When the user selects the “home appliance priority” charging mode on the operation panel 7 in FIG. 3, the user uses the operation panel 7 in FIG. The maximum current I-h-max is arbitrarily set within the contract current I-br. Here, I-h-max is a current that is set so as to be used at maximum in the home electric appliance 2 regardless of whether or not the home electric appliance 2 is used.

  For example, the numerical value of the arbitrary maximum current I-h-max within the contract current (rated current) I-br of the breaker 1 is set by the user using the operation panel 7 of FIG. Alternatively, since a plurality of numerical value options of I-h-max within the contract current I-br are displayed on the operation panel 7, the user selects and sets one of these multiple options. You may comprise. Alternatively, the controller 5 may be configured to arbitrarily set the maximum current I-h-max based on the contract current I-br of the breaker 1. For example, the controller 5 may be configured to automatically set every season and month based on the contract current I-br.

Subsequently, in S32, it is determined whether I-evmax (the maximum current that can be charged in the battery 6v of the EV6) is larger than I-br-I-h-max.
When I-evmax is larger than I-br-I-h-max (Yes in S32), that is, when I-evmax> I-br-I-h-max, the duty ratio of the CPL signal is set to I-br- A current value (see FIG. 4) obtained by calculating I-h-max is set (S33). In this case, the charging current to the battery 6v of the EV6 set by I-br-I-h-max is, for example, when the current power of the battery 6v of the EV6 is “zero”, the charging time is the capacity of the battery 6v, etc. However, for example, in 8 hours, the charging current for completing charging can be set. As described above, in order not to start charging the battery 6v, control is performed by not outputting the duty pulse signal of the CPL signal.

When it is determined in S32 of FIG. 8 that I-evmax is not larger than I-br-I-h-max (No in S32), that is, I-evmax <= I-br-I-h-max The current value of I-evmax (maximum current that can be charged to the battery 6v of EV6) is set to the duty ratio of the CPL signal (S34).
The above is the flow of the “home appliance priority” charging mode shown in FIG.

  According to the “home appliance priority” charging mode, the maximum current I-h-max of the household electrical appliance 2 can be set, so that the charging current can be accurately set for each season according to the usage state of the household electrical appliance 2. . In this case, since only the set value is stored, the memory (circuit) can be small, leading to cost reduction.

<Charging mode for "battery high life">
Next, the “battery high life” charging mode will be described with reference to FIG.
The “battery high life” charging mode is a charging mode in which the battery 6v is charged for the purpose of suppressing deterioration of the battery 6v due to a temperature state around the battery 6v of the EV 6 to be charged.

When the user selects the charging mode of “battery high life” on the operation panel 7 in FIG. 3, the temperature at the charging place of the EV 6 is measured by the temperature sensor s1 in FIG. 1 in S41 in FIG. 9. As described above, the temperature at the charging place measured by the temperature sensor s1 is regarded as the ambient temperature of the battery 6v of the EV6.
Subsequently, in S42, it is determined whether or not the temperature at the charging place of the EV 6 is appropriate for charging the battery 6v of the EV 6. This is because when the battery 6v is charged at an abnormal temperature where the ambient temperature is too high or too low (a temperature range in which the electric vehicle storage battery deteriorates), the battery 6v deteriorates faster.

When the temperature of the EV 6 charging place is an appropriate temperature (Yes in S42 in FIG. 9), the battery 6v of the EV 6 is charged in the “home appliance priority” charging mode in FIG. 8 (S43).
On the other hand, when it is determined in S42 that the temperature of the EV 6 charging place is not suitable for charging (No in S42), the CPL signal duty ratio is set to a low current (predetermined deterioration preventing current) that does not deteriorate the battery 6v of the EV6. ) Value is set (S44).
The above is the control of the charging mode of “battery high life” in FIG. 9.

<"Lowest cost" charging mode>
Next, the charging mode of “lowest cost” will be described with reference to FIG. 10 showing the flow of control of “lowest cost”.
The “minimum cost” charging mode is a charging mode for the purpose of minimizing the cost of charging the battery 6v of the EV 6 shown in FIG.
When the user selects the “lowest cost” charging mode on the operation panel 7 in FIG. 3, is the time to charge the battery 6v of the EV 6 in night power time with a low power charge in S51 in FIG. It is judged whether or not.

When the charging time is the night power time (Yes in S51), the battery 6v of the EV 6 is charged in the “EV priority” charging mode of FIG. That is, charging is performed at a time when the electricity rate for night electricity is low (S52).
On the other hand, if it is determined in S51 of FIG. 10 that the charging time is not nighttime power time (No in S51), the duty ratio of the CPL signal is set to 0, and the EV6 battery 6v is not charged. . That is, charging is not performed when the charging time is not the nighttime power time at which the power rate is cheap (S53).
The above is the control of the “cost lowest” charging mode in FIG. 10.

<Charging mode of “Charging current setting”>
Next, the charging mode of “charging current setting” will be described with reference to FIG. 11 showing the flow of control of “charging current setting”.
The “charging current setting” charging mode is a charging mode in which the user can arbitrarily set a charging current equal to or less than the maximum current I-evmax (first charging current) that can charge the battery 6v of the EV6.

  When the user selects the “charging current setting” charging mode on the operation panel 7 in FIG. 3, in S61 in FIG. 11, the charging current equal to or lower than the maximum current I-evmax that can be charged to the battery 6v of the EV6 is Is displayed in “I-home” of the current home electrical device 2 displayed in “I-home” of [Current Information] 7b of the operation panel 7 of FIG. 3 and displayed in “I-EV” of [Current Information] 7b. Referring to the charging current of the EV6 and the maximum current I-evmax displayed in the [current information] 7b, using the “SELECT” button 7c2 or a numeric keypad or a volume (not shown), Set the charging current arbitrarily. This set charging current is set charging current I-set. Note that the operation panel 7 is configured such that a set charging current I-set equal to or less than the maximum current I-evmax can be set.

Subsequently, in S62, it is determined whether or not the set charging current I-set is larger than I-br (contract current of the breaker 1) -I-home (current used by the home electric appliance 2).
When the set charging current I-set is larger than I-br-I-home (Yes in S62), the current value of I-br-I-home (see FIG. 4) is set to the duty ratio of the CPL signal. (S63).
On the other hand, when it is determined in S62 of FIG. 11 that the set charge current I-set is not larger than I-br-I-home (No in S62), the set charge current set by the user in the duty ratio of the CPL signal The value of I-set is set (S64).
The above is the control of the charging mode of “charging current setting” in FIG.

<Effect>
According to the above configuration, the user (operator) can carry a method for charging the EV 6 in accordance with the purpose and situation in accordance with the usage status of the home electric appliance 2 and the operation plan of the EV 6.
Further, the user (operator) actively selects and uses the home electric appliance 2 by teaching that the maximum charging current I-evmax is not reached by using the I-EV-max lamp 7d, voice, or the like in FIG. The amount can be reduced and the battery 6v of the EV 6 can be charged quickly.

In addition, when the EV 6 is charged to the battery 6v, the user (operator) selects the charging mode of “home appliance priority”, the charging mode of “charging current setting”, and the like, thereby cooling and heating the household electrical appliance 2 according to the season. Charging is possible according to the situation.
When charging the battery 6v of the EV6, the user (operator) can select the “battery high life” charging mode to prevent the battery 6v of the EV6 from being deteriorated. In the “battery long life” charging mode, the configuration is simple because only the temperature of the charging place is detected.
In addition, when the user (operator) charges the battery 6v of the EV 6, the charging cost can be reduced by selecting the “cost lowest” charging mode.

Further, when the user (operator) charges the battery 6v of the EV 6, the charging mode can be adjusted in accordance with the usage status of the home electric appliance 2.
Further, since the distance that can be traveled by the EV 6 from the charged amount (Wh) of the battery 6v of the EV 6 is displayed in the cruising distance (km) of the [current information] 7b of the operation panel 7 in FIG. The user (operator) can stop charging at the timing when the distance is secured.
Therefore, as the charging current to the battery 6v of the EV 6, a current value equal to or less than the rating (contract current) of the breaker 1 can be set finely, so that there is an advantage that it can be adjusted according to the usage situation of the home electric appliance 2.

In addition, although the case where it charges to one EV6 was illustrated in the said embodiment, EV6 is good also as a plurality. In this case, the current charged to each EV 6 may be equally divided, or the current charged to each EV 6 may be appropriately set or adjusted by the operation panel 7 of the controller 5.
Thereby, when charging a plurality of EVs 6, the current value of each charging can be set within a range in which the breaker 1 does not fall. Therefore, since a plurality of EVs 6 try to draw current at the maximum, the phenomenon that the breaker 1 falls due to overcurrent can be prevented.

In addition, when there exists not only the electric power supplied from the power plant in the said embodiment but private power generation, such as photovoltaic power generation, the sum of the contract current of the breaker 1 and the current obtained by private power generation is calculated as a house (building ), The present invention can be applied in the same manner as described above.
In addition, although the said embodiment demonstrated and demonstrated the house as a building, of course, this invention can be applied effectively also in buildings other than houses, such as an office, a store, and a building.

Moreover, although the case where the temperature sensor s1 is disposed near the EV 6 that performs charging is illustrated in the embodiment, the temperature sensor s1 may be mounted on the EV 6.
In the above embodiment, as the charging mode, “EV priority”, “lowest cost”, “home appliance priority”, “battery life expectancy”, or “charging current setting” is exemplified. It is good also as a structure which a user can set with the operation panel 7 so that it may change. It is also possible to configure a charge mode control other than that illustrated.

Moreover, in the said embodiment, although the household electric appliance 2 was illustrated as an in-building electric power load, of course, electric power loads in buildings other than the electric home appliance 2 can be applied to an in-building electric power load.
In the above-described embodiment, the electric vehicle is described as an example of the electric vehicle. However, any electric vehicle having a battery can be widely applied to electric vehicles other than EV, such as plug-in hybrid vehicles.

2 Household electrical equipment (in-building power load)
4 Charging cable connections, etc. (charging device)
4c Charging cable (charging device)
4g Charging gun (charging device)
5 Controller (control means, charging mode selection means, notification means, night power determination means, cruising range display means)
6 Electric vehicles (electric vehicles)
6v battery (electric vehicle storage battery)
7 Operation panel (charging mode selection means, cruising range display means)
7d I-EV-max lamp (notification means)
Maximum current that can be charged to an I-evmax EV battery (first charging current)
S Vehicle charging power management system s1 Temperature sensor (temperature measurement means)

Claims (8)

The power supplied to the building is branched into a power load in the building and a power storage in the electric vehicle storage device, and a first power to the power load in the building and a second power amount to the electric vehicle storage device are obtained. A vehicle charging power management system that coordinates and distributes,
When charging the electric vehicle storage battery, charging mode selection means that allows an operator to select one of a plurality of charging modes;
Based on the charging mode selected by the charging mode selection means, and a control means for charging the electric vehicle storage battery by the charging device from the supplied power ,
In the plurality of charging modes, an electric vehicle priority mode is set,
In the electric vehicle priority mode,
The control means charges the electric vehicle capacitor with a first current obtained by subtracting a use current of the power load in the building from an allowable value of a current supplied to the building,
Informing means for informing the operator whether or not the first current is the first charging current that is acceptable for charging the electric vehicle storage battery and that is the fastest charging time before full charging. vehicle charging power management system comprising the. The vehicle charging power management system according to claim 1 , wherein a home appliance priority mode is set in the plurality of charging modes,
In the home appliance priority mode,
The control means charges the electric vehicle capacitor with a second current obtained by subtracting a predetermined maximum current set for use of the power load in the building from an allowable value of the current supplied to the building. A vehicle charging power management system characterized by The power supplied to the building is branched into a power load in the building and a power storage in the electric vehicle storage device, and a first power to the power load in the building and a second power amount to the electric vehicle storage device are obtained. A vehicle charging power management system that coordinates and distributes,
When charging the electric vehicle storage battery, charging mode selection means that allows an operator to select one of a plurality of charging modes;
Control means for charging the electric vehicle storage battery by the charging device from the supplied power based on the charging mode selected by the charging mode selection means;
Prepared,
In the plurality of charging modes, a home appliance priority mode is set,
In the home appliance priority mode,
The control means charges the electric vehicle capacitor with a second current obtained by subtracting a predetermined maximum current set for use of the power load in the building from an allowable value of the current supplied to the building. A vehicle charging power management system characterized by In the vehicle charging power management system according to claim 2 or claim 3,
Comprising temperature measuring means for measuring the ambient temperature of the electric vehicle storage device;
In the plurality of charging modes, a deterioration suppressing charging mode is set,
In the deterioration suppressing charging mode,
The control means determines whether or not the temperature measured by the temperature measuring means is in a temperature region where the electric vehicle capacitor is deteriorated. If the temperature is in the temperature region, the electric vehicle capacitor is determined. The charging current to the electric vehicle battery is set to a predetermined deterioration preventing current that does not cause deterioration in the electric vehicle storage device, and when not in the temperature range, the charging current to the electric vehicle storage device is set to the home appliance priority mode. The vehicle charging power management system, characterized in that the second current set in step 2 is used. In the vehicle charging power management system according to claim 1 or 2 ,
The time for performing the charging comprises night power determination means for determining whether it is night power time when the price of power supplied to the building from the outside is low,
A cost priority mode is set for the plurality of charging modes,
In the cost priority mode,
The control means sets the charging current to the electric vehicle storage device in the electric vehicle priority mode when the night power determination means determines that the time for charging is the night electric power time. On the other hand, when it is determined that it is not the nighttime electric power time, the electric vehicle storage battery is not charged when the first electric current is used. In the vehicle charging power management system according to claim 1, claim 2 or claim 5 ,
In the plurality of charging modes, a charging current setting mode is set,
In the charging current setting mode,
The control means sets the charging current to the electric vehicle storage battery within a range equal to or lower than the first charging current, and is the smaller of the charging current set by the operator or the first current. The vehicle charging power management system, wherein the current is used when the current or the both currents are equal. In the vehicle charging power management system according to any one of claims 1 to 6,
Vehicle charging, comprising: a cruising distance display means for displaying a cruising distance of the electric vehicle relative to a charge amount of the electric vehicle capacitor when charging the electric vehicle capacitor. Power management system. In the vehicle charging power management system according to any one of claims 1 to 5,
The electric vehicle storage battery is a plurality,
The charging current charged in each of the plurality of electric vehicle capacitors is a current having a magnitude obtained by equally dividing the charging current according to claim 1 or the charging current. The sum of the values is set by the operator so as to be equal to or less than the magnitude of the charged current according to any one of claims 1 to 5.
A vehicle charging power management system characterized by that.

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