JP5705494B2 - In-vehicle navigation device and in-vehicle storage battery charge / discharge control method - Google Patents

Description

  The present invention relates to an in-vehicle navigation device and a charge / discharge control method for an in-vehicle storage battery, and more particularly to an in-vehicle navigation device for controlling charge / discharge of an in-vehicle storage battery connected to an electric power network and a charge / discharge control method for an in-vehicle storage battery. .

  Currently, in order to control global warming and cover the increasing demand for electricity in the future, the expansion of power generation facilities using solar and wind power is being promoted. However, since the amount of power generated by sunlight, wind power, etc. depends on weather conditions, the amount of power supply becomes unstable. In addition, the power demand is unstable during the daytime and low at night.

  A power network such as a smart grid has been proposed in order to level the fluctuations in the amount of power supply and demand. In a power network, a power generation facility and a power demand facility are connected by a network, and a power supply status and usage status are monitored to suppress fluctuations in power supply and demand. In this case, the power that is generated at the power demand facility but is not used is returned to the network to supplement the power supply amount. In the power network, it is also proposed to buy and sell the surplus power.

  Patent Document 1 proposes a power trading brokerage system capable of mediating power trading between a power consumer and a power supply company through a network. Patent Document 2 proposes a system that provides power information according to each power consumer.

JP-A-2005-50164 JP 2007-97347 A

  By the way, in order to suppress global warming, electric vehicles equipped with batteries (on-vehicle storage batteries) are rapidly spreading, and it is necessary to incorporate the power consumption of electric vehicles into the power network. ing.

  The present invention has been made in view of such a problem, and an in-vehicle navigation device and an in-vehicle storage battery charge / discharge control capable of automatically designing and executing a charge / discharge schedule according to an electric power price or an electric power demand amount. It aims to provide a method.

In order to solve the above-described problem, according to one aspect of the present invention, there is provided an in-vehicle navigation device for an electric vehicle including an in-vehicle storage battery connected to an electric power network having a power transmission / distribution network and a communication network, a vehicle position detecting means for detecting the position of the vehicle, and communication means for acquiring electricity price or power demand varies over time via the communication network, RiTakashi care - is the electric vehicle in the past discharged charge and discharge A storage means for storing a place , a travel history in which the arrival time and departure time of the electric vehicle at the charging / discharging place are accumulated on a daily basis, the power price or the power demand, and the vehicle position detection means, the communication means, and control means for controlling said storage means and the vehicle battery, wherein, in the starting locations before the electric vehicle is traveling on the same day, the traveling footwear The extracts and the discharge location from the departure point to travel on the day to the final destination, and the arrival time and the departure time in this charge-discharge place from the during the period from the arrival time to the starting time There is provided an in-vehicle navigation device that determines a start time and an end time of charging / discharging of the in-vehicle storage battery according to a power price or the power demand.

  In the in-vehicle navigation device according to this aspect, the storage means further stores a reference charging / discharging location connected to the power transmission / distribution network for charging / discharging the in-vehicle storage battery of the electric vehicle, and the control means The charging / discharging location may be extracted from the reference charging / discharging location.

  Further, a display unit for displaying the charging / discharging location determined by the control means, the arrival time and the departure time at the charging / discharging location, and the charging / discharging start time and end time of the in-vehicle storage battery. You may make it have.

  Further, the control means may determine the start time and end time of charging / discharging of the in-vehicle storage battery so that charging is performed when the power price is low or discharging is performed when the power price is high. .

  In addition, the control means may determine a start time and an end time of charging / discharging of the in-vehicle storage battery so as to charge the in-vehicle storage battery when the power demand is small.

  Furthermore, you may make it provide the electric power residual amount measurement means which measures the electric power residual amount of the said vehicle-mounted storage battery.

  The control means further includes an input operation means, and the control means allows the user to access the charge / discharge location from the input operation means, the arrival time and departure time of the own vehicle, and the charge / discharge of the storage battery. At least one of the start time and the end time may be updated.

According to another aspect of the present invention, there is provided a charging / discharging control method for an in-vehicle storage battery of an electric vehicle by an in-vehicle navigation device connected to an electric power network having a power transmission / distribution network and a communication network, the electric power varying with time one comprising the steps of a price or power demand to get through the communication network, and charging and discharging location where the electric car was RiTakashi discharge care - in the past, the arrival time and departure time of the electric vehicle in this charge-discharge location A step of storing a travel history accumulated in units of days, and at a departure place before the electric vehicle travels on the day, the charge / discharge location from the departure place to the final destination traveling on the day from the travel history, And extracting the arrival time and the departure time, and the power price or the power demand between the extracted arrival time and the departure time. A step of determining a start time and an end time of charging / discharging of the in-vehicle storage battery according to a quantity, and a step of running the electric vehicle to charge / discharge at the start time and end time of charging / discharging of the in-vehicle storage battery The charging / discharging control method of the vehicle-mounted storage battery characterized by having is provided.

  The charging / discharging control method for an in-vehicle storage battery according to this aspect further includes a step of storing a reference charging / discharging location connected to the power transmission and distribution network for charging / discharging the in-vehicle storage battery, and the reference charging / discharging location From the above, the charging / discharging location may be extracted.

  In addition, charging and discharging start and end times of the in-vehicle storage battery are determined so that the in-vehicle storage battery is charged when the power price is low and the in-vehicle storage battery is discharged when the power price is high. It may be.

  Moreover, you may make it determine the start time and end time of charging / discharging of the said vehicle-mounted storage battery so that the said vehicle-mounted storage battery may be charged when the said electric power demand amount is small.

  Further, when the electric vehicle is scheduled to run after charging / discharging at the charging / discharging location, the amount of electric power for charging / discharging the in-vehicle storage battery at the charging / discharging location is adjusted, and the remaining power required for the running schedule of the electric vehicle is adjusted. You may make it leave more than quantity.

  The user may update at least one of the charging / discharging location, the arrival time and departure time of the electric vehicle, and the charging / discharging start time and end time of the in-vehicle storage battery.

According to the in-vehicle navigation device and the in-vehicle storage battery charge / discharge control method of the present invention, the travel history accumulated in units of one day, the power price or the power demand amount are stored, and the electric vehicle before traveling on the same day. At the departure location, the charging / discharging location from the departure location to the final destination traveling on the current day, and the arrival time and departure time at the charging / discharging location are extracted from the travel history , and the power price or between the arrival time and the departure time is extracted. The start time and end time of charging / discharging of the in-vehicle storage battery are determined according to the power demand.

  In this way, the control means can extract the accumulated data of the traveling history of the own vehicle stored in the in-vehicle navigation device, and can automatically set the charging / discharging schedule. A charge / discharge schedule suitable for the car life can be established.

  Moreover, since charging and discharging can be automatically selected and performed within the staying time of the vehicle at the same charging / discharging place, it is possible to save time and convenience.

  Moreover, although charging / discharging time becomes long in general, if the charging / discharging place is set to the place where a user goes for business, charging / discharging can be performed efficiently using the staying time in that place.

Furthermore, since a charge / discharge schedule is established according to the power price or the power demand, it is possible to efficiently charge / discharge by discharging when the power price is high and charging when the power price is low, thereby reducing the power cost. . Further, by discharging when the power demand is large and charging when the power demand is small, fluctuations in the power demand can be suppressed, thereby contributing to stable power supply.

It is a schematic diagram which shows an example of the electric power network connected to the vehicle-mounted navigation apparatus which concerns on embodiment of this invention. It is a block diagram which shows an example of a structure of the vehicle-mounted navigation apparatus which concerns on embodiment of this invention. It is a block diagram which shows an example of the main structures of the vehicle-mounted navigation apparatus which concerns on the charging / discharging process of a battery. 3 is a flowchart illustrating an example of a charge / discharge control method for the battery of FIG. 2. It is a flowchart which shows an example of the charging / discharging schedule determination process of the battery of FIG. It is a figure which shows an example of the charging / discharging schedule screen of FIG. It is a figure which shows an example of the arrival guidance screen in the charging / discharging schedule execution process of FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

(Power network configuration)
FIG. 1 is a schematic diagram illustrating an example of a power network connected to an in-vehicle navigation device of an electric vehicle.

  As shown in FIG. 1, in a power network, a power generation facility including a power plant 80 and a substation, and a power demand facility such as a house 40, an electric vehicle 50, a factory 60, and a stand 70 for selling electricity are connected to a power transmission and distribution network. Power is transmitted / distributed by connection at 31, and information on power is transmitted through communication network 32 such as the Internet. The power network is managed by a power company server 33 connected to the communication network 32. Here, the electric vehicle 50 is a generic name for vehicles such as plug-in hybrid vehicles and electric vehicles that use electric power stored in the battery 21 as a power source.

  The electric vehicle 50 is charged / discharged by the electric vehicle 50 via a power cable (power line) 93 connected to the chargers / dischargers 62 and 71 of the factory 60 and the stand 70 or the AC outlet 41 of the house 40. This is done by connecting to 31.

  In addition, transmission of information related to power is performed by being connected to the communication network 32 via a communication device of the in-vehicle navigation device 100. The information related to power includes power demand information related to a fluctuating power demand and power price information related to a fluctuating power price provided from the server 33 of the power company.

  In FIG. 1, reference numeral 22 denotes power remaining amount measuring means for measuring the remaining power of the battery 21 of the electric vehicle 50, and 91 a to 91 d are chargers / dischargers 62, 71 placed in the parking lot 61 of the factory 60 or Power lines connecting the AC outlet 41 and the power transmission / distribution network 31, and 92 a to 92 d are communication lines connecting the power meter (not shown) installed together with the charger / discharger 62 and the communication network 32.

(Configuration of in-vehicle navigation system)
Next, the configuration of the in-vehicle navigation device will be described with reference to FIGS.

  FIG. 2 is a block diagram showing a configuration of the in-vehicle navigation device 100 according to the embodiment of the present invention. FIG. 3 is a block diagram illustrating an example of a main configuration of the in-vehicle navigation device 100 according to the battery charging / discharging process.

In FIG. 2 , 1 is a DVD drive, and 1a is a storage medium in which map data and other guidance data are stored. In the present embodiment, the DVD-ROM 1a is used as a storage medium for storing such data, but a hard disk or other storage medium may be used. The map stored here is divided into longitude and latitude widths of appropriate sizes according to each scale level such as 1/1500, 1/25000, 1 / 50,000, 1/10000, etc. Roads, architectural drawings, facilities, and other various properties included in are stored as a coordinate set of points (nodes) expressed in longitude and latitude. Map data includes (1) a road layer composed of road link data, intersection data, node data, etc., (2) a background layer for displaying roads, buildings, parks, rivers, etc. on a map screen, and (3) a municipality. administrative district name, such as name, street name, and a like character, symbol layer for displaying characters and map symbols to indicate the intersection name, and the like.

  In the road layer, the road link data supplies attribute information of each road. For each link constituting the road, the type (national road, highway, prefectural road, other road), level of the road network, It consists of data such as the number of nodes constituting the link, road number (road name), and the width of the link connecting each node. The intersection data is a set of nodes closest to the intersection among the nodes on the link coupled to the intersection. The node data is a list of all nodes constituting the intersection, and is configured by position information located at each node, information for identifying whether the node is an intersection or not, and the like.

  An operation unit 2 is provided with operation buttons and the like for operating the navigation apparatus body 10. In the present embodiment, the operation unit 2 includes a remote control transmitter or the like, and the user can operate the navigation apparatus body 10 by operating the remote control transmitter at hand. Note that a touch panel provided on the display unit 7 described later is also included in the operation unit 2.

  Also, 3 receives GPS signals sent from a plurality of GPS satellites and generates and outputs GPS data such as longitude, latitude, PDOP (Position DOP) value and HPOP (Horizontal DOP) value of the current position of the vehicle. A GPS receiver is shown. Reference numeral 4 denotes a self-contained navigation sensor. The self-contained navigation sensor 4 includes an angle sensor such as a gyro that detects a vehicle rotation angle, and a travel distance sensor that generates a pulse at every constant travel distance.

  Reference numeral 5 denotes a communication device capable of communication with the Internet or the like. The communication device 5 can perform data communication with the server 33 of the power company via the communication network 32 of the power network. Reference numeral 6 denotes a VICS receiver that receives VICS (registered trademark) (road traffic information communication system) information transmitted from a radio wave beacon or an optical beacon. These beacons are installed on the roadside and connected to police stations, road managers and integration centers to provide information on traffic jams in the vicinity.

  Reference numeral 7 denotes a display unit such as a liquid crystal panel. The navigation device body 10 displays a map around the current position of the vehicle on the display unit 7, a guidance route from the departure point to the destination, a vehicle mark, Other guidance information is displayed. A touch panel is provided on the screen of the display unit 7. Various buttons that are paired with the display contents of the display screen are displayed on the touch panel, and an input device for selecting a menu or the like indicated by these various buttons. In addition, handwriting input is possible on the touch panel, which can be used when updating the charge / discharge schedule.

  The main body of the navigation device 10 is composed of the following. Reference numeral 11 denotes a buffer memory that temporarily stores map data read from the DVD-ROM 1a via the DVD drive 1.

13 is a map drawing unit that draws the map screen read into the buffer memory 11, and 14 is an operation screen / mark for generating various menu screens (operation screens) and various marks such as a vehicle position mark and a cursor according to the operation status. It is a generation part.

  Reference numeral 15 denotes a guide route storage unit that stores the guide route searched by the control unit 12, and 16 denotes a guide route drawing unit that draws the guide route. The guidance route drawing unit 15 stores all the nodes of the guidance route searched by the control unit 12 from the departure point to the destination. When displaying the map, the guide route drawing unit 16 reads the guide route information from the guide route storage unit 15 and draws the guide route with a color and line width different from those of other roads.

  Reference numeral 17 denotes a storage unit composed of a hard disk, a semiconductor memory, and the like, in which a traveling history of the vehicle, a reference charging / discharging location, a power price, and a power demand amount are stored. Since the charging / discharging location is not initially stored in the storage unit, the charging / discharging location is selected and input by the user. This charge / discharge location is defined as a reference discharge location. When determining the charge / discharge schedule, the charge / discharge location is extracted from the reference discharge location. As the driving history of the vehicle, the charging / discharging location where the vehicle stopped and charged / discharged during the day, the arrival time at the charging / discharging location, and the departure time from the charging / discharging location are accumulated over the last one week. Yes.

  An audio output unit 18 supplies an audio signal to the speaker 8 based on a signal from the control unit 12. Reference numeral 19 denotes an image composition unit, which overlays the map image drawn by the map drawing unit 13 with various marks and operation screens generated by the operation screen / mark generation unit 14, the guide route drawn by the guide route drawing unit 22, and the like. Display on the display unit 7.

  Next, the control part 12 comprised with the microcomputer which controls each part mentioned above is demonstrated. The control unit 12 has a built-in navigation program, and calculates the current position of the vehicle based on a signal output from the GPS receiver 3 or a signal output from the self-contained navigation sensor 4 according to the program. Or the map data to be displayed is read from the DVD-ROM 1a to the buffer memory 11 via the DVD drive 1 or the search conditions set using the map data read to the buffer memory 11 from the departure point to the destination. Various processes such as a process of searching for a guidance route up to are performed.

  In addition, the control unit 12 has a built-in program for determining a charge / discharge schedule. As shown in FIG. 3, the program includes a charge / discharge schedule control unit 12a, a display control unit 12b, a battery control unit 12c, and charge / discharge power. It functions as the calculation unit 12d and determines a charge / discharge schedule. FIG. 6 shows an example of the determined charging / discharging schedule. The charging / discharging schedule of FIG. 6 can know the state of charging / discharging on the day. For example, in a staying time zone from 9 am (arrival time of own vehicle) to 18:00 (departure time of own vehicle) in a company, 11:50 (start time of discharge) to 13:20 (end time of discharge) ) (Discharge time zone), and the power cost can be reduced most by charging from 13:20 (charge start time) to 16:30 (charge end time) (charge time zone). I understand. Hereinafter, the charging time zone and the discharging time zone are collectively referred to as a charging / discharging time zone.

  Below, the function of each part which determines a charging / discharging schedule is demonstrated.

  The charging / discharging schedule control unit 12a extracts the charging / discharging place where the vehicle of the same day has stopped and the staying time zone at the charging / discharging place from the driving history information for the latest one week, and outputs the extracted time to the display control unit 12b. To do. If there is travel history information for the most recent week, the schedule for each day of the week is fixed. The travel history information is not limited to the latest one week, and can be determined according to the needs of the user. Moreover, it is not limited to extracting for every day of the week, and the most statistically recorded information and other travel history information may be employed.

  Furthermore, the charging / discharging time zone is determined within the staying time zone based on the charging / discharging time calculated based on the remaining amount of power required by the battery control unit 12c and the power price information. The charging / discharging time zone is determined so that the battery is discharged (power sale) when the power price is high in the staying time zone, and the battery is charged (power purchase) when the power price is low.

  As shown in FIG. 7, when the display control unit 12b detects that the vehicle has arrived at the charge / discharge location, the display date and time, screen information indicating that the vehicle has arrived at the charge / discharge location, Screen information indicating that the connection of the cable 93a is prompted and screen information indicating the charge / discharge time zone are output to the display unit 7. Thereby, it can confirm that charging / discharging is performed reliably within stay time.

  The battery control unit 12c causes the charge / discharge power calculation unit 12d to calculate the charge / discharge power amount and the corresponding charge / discharge time at the charge / discharge location based on the remaining electric power required for traveling to the next charge / discharge location. Further, the battery 21 is controlled such that charging / discharging starts at the charging / discharging start time and charging / discharging ends at the charging / discharging end time. Further, the remaining power measurement means 22 is made to sequentially measure the remaining power, and the measurement result is output to the display control unit 12b. The battery control unit 12c calculates a travelable distance based on the remaining power.

  The charge / discharge power calculation unit 12d calculates the charge / discharge power amount and the corresponding charge / discharge time according to the command of the in-vehicle battery control unit 12c.

  As described above, according to the in-vehicle navigation device for an electric vehicle according to the embodiment of the present invention, the control unit determines the charging / discharging location and the staying time zone at the charging / discharging location from the traveling history of the own vehicle stored in the storage unit. And the charging / discharging time zone of the in-vehicle storage battery is determined according to the power price or the power demand amount in the staying time zone.

  In this way, the control unit can extract the accumulated data of the traveling history of the own vehicle stored in the in-vehicle navigation device, and can automatically set the charging / discharging schedule. A charge / discharge schedule suitable for the car life can be established.

  Moreover, since charging and discharging can be automatically selected and performed within the staying time of the vehicle at the same charging / discharging place, it is possible to save time and convenience.

In addition, since a charge / discharge schedule according to the power price or power demand can be established and executed, it is discharged when the power price is high, and charged and discharged efficiently by charging when the power price is low. In addition to being able to reduce, by discharging when the amount of power demand is large and charging when it is small, fluctuations in the amount of power demand can be suppressed, contributing to stable power supply.

(Battery charge / discharge control method)
Next, a battery charge / discharge control method using the in-vehicle navigation device will be described with reference to FIG. Of these steps, step S11 for performing a charge / discharge schedule determination process based on the travel history and step S14 for updating the charge / discharge schedule will be described in detail with reference to FIG. In addition, FIG. 1 to FIG. 3, FIG. 6, and FIG.

  First, in step S11, the in-vehicle navigation device 100 performs a charging / discharging schedule determination process based on the travel history at the departure place before the host vehicle travels. That is, the control part 12 of the vehicle-mounted navigation apparatus 100 determines a charging / discharging schedule.

  In this charge / discharge schedule determination process, as shown in FIG. 5, first, in step S <b> 21, the vehicle is connected to the power network, and power price information is acquired from the power company server 33 via the communication network 32. Note that the reference charge / discharge locations described above are stored in the storage unit 17 in advance by the user. Reference charging / discharging locations include homes, companies where users work, gyms for shopping, shopping centers, hospitals, and the like.

  In the next step S22, the charging / discharging schedule is determined based on the past travel history stored in the storage unit 17, and the vehicle's staying time zone at the charging / discharging place and the charging / discharging place on the same day of the week before. To decide.

  In the next step S23, the power price is collated in the staying time zone of the vehicle at the charging / discharging location to determine the charging / discharging time zone. In the staying time zone, if there is only a time zone where the power price is low, only charging is performed, and if possible, the battery is fully charged, or if the charging time is insufficient, the remaining power level is set to an intermediate state. Alternatively, when there is only a time period when the power price is high, only discharging is performed, and the remaining power is set to zero or in an intermediate state. Or, if there is a time zone when the power price is low and a time zone when the power price is high, the battery is charged during a time when the power price is low and discharged during a time when the power price is high, and the battery is fully charged, Is set to a zero state or an intermediate state. For example, when you go home from the office and stay at home at night, the demand for electricity is low and the price of electricity is low, so if you charge only in consideration of the next day's commute and make it fully charged Good.

  In next step S24, it is confirmed whether there is a next charging / discharging place after charging / discharging based on the set charging / discharging schedule.

  If there is a next charging / discharging location in step S24, a distance to the next charging / discharging location and a required power amount (required remaining power) are calculated in next step S25. In the next step S26, the charge / discharge time is calculated so that the necessary remaining power remains, and the charge / discharge time zone is determined again within the charge / discharge time zone.

  Then, it returns to step S23 and performs step S23-step 26 about the next charging / discharging location. This process is sequentially repeated until the final destination.

  In step S24, if there is no plan to use the vehicle after the charging / discharging place where charging / discharging ends, the determination process of the charging / discharging schedule is ended.

  When the determination process of the charging / discharging schedule of FIG. 5 is completed, a screen on which the determined charging / discharging schedule is drawn is displayed in step S12 of FIG. 4 as shown in FIG. In addition to the charge / discharge schedule, the charge / discharge schedule screen of FIG. 6 displays the measured remaining power, the travelable distance corresponding to the measured remaining power, and the power price change information over time.

  In the next step S13, a screen for confirming to the user whether or not there is a change in the charge / discharge schedule is displayed, and at least one of the charge / discharge location, the staying time zone of the vehicle at the charge / discharge location, and the charge / discharge time zone If there is a change, the charging / discharging schedule is displayed in the next step S14, the necessary items are updated by the user, and this is determined as a new charging / discharging schedule. In the process of updating the charging / discharging schedule, when the charging / discharging location or staying time zone is updated, steps S23 to S26 in FIG. 5 are executed, and the charging / discharging time zone is re-determined if necessary. When the charge / discharge time zone is updated, the charge / discharge time zone is determined as it is.

  If there is no change in step S13 of FIG.

  In the next step 15, the “reservation button” displayed on the charge / discharge schedule screen of FIG. 6 is depressed. Thereby, the determination of the charge / discharge schedule is completed and reserved. When the vehicle starts to run, a charge / discharge schedule execution process is performed according to the charge / discharge schedule.

  In the execution process of the charge / discharge schedule, when the vehicle is acting according to the determined charge / discharge schedule, when the vehicle arrives at the charge / discharge place, a screen as shown in FIG. 7 is displayed, and the charge / discharge time zone is notified. The connection of the power cable 93 is prompted. Then, according to the instruction of the control unit 12, the battery 21 is discharged when the power price is high, and the battery 21 is charged when the power price is low. Thereby, it can charge / discharge efficiently and can reduce electric power cost.

  On the other hand, when the behavior of the own vehicle deviates from the charge / discharge schedule, that is, when the own vehicle does not stay at the charge / discharge location within the charge / discharge time zone, the execution process ends.

  In the above-described embodiment, the charge / discharge time zone is adjusted according to the power price, but the charge / discharge time zone may be adjusted according to the power demand. Thereby, the fluctuation | variation of electric power demand can be suppressed and it can contribute to the stable supply of electric power.

  As described above, according to the control method for the in-vehicle storage battery of the embodiment of the present invention, the control unit 12 extracts the accumulated data of the travel history of the own vehicle stored in the in-vehicle navigation device, and automatically Since a charge / discharge schedule can be established, it is convenient and a charge / discharge schedule adapted to the car life of the user can be established.

  Moreover, since charging and discharging can be automatically selected and performed within the staying time of the vehicle at the same charging / discharging place, it is possible to save time and convenience.

1 ... DVD drive,
2 ... operation part,
3 ... GPS receiver,
4 ... Self-contained navigation sensor,
5 ... Communicator,
6 ... VICS receiver,
7 ... display part,
8 ... Speaker,
10: Car navigation device body,
11: Buffer memory,
12 ... control unit,
12a ... charge / discharge schedule control unit,
12b ... display control unit,
12c ... Battery control unit,
12d: Charge / discharge power calculation unit,
13 ... Map drawing part,
14 ... operation screen / mark generator,
15 ... guide route storage unit,
16 ... guide route drawing unit,
17 ... storage part,
18 ... voice output unit,
19: Image composition unit,
21 ... Battery,
22: Remaining power measuring means,
31 ... transmission and distribution network,
32 ... communication network,
33 ... Server,
40 ... Housing,
41 ... AC outlet,
50 ... Electric car,
60 ... factory,
70 ... stand,
80 ... Power plant,
91a to 91d ... power lines,
92a to 92d ... communication line,
93 ... Power cable (power line),
100: A vehicle-mounted navigation device.

Claims (13)

An in-vehicle navigation device for an electric vehicle comprising an in-vehicle storage battery connected to a power network having a power transmission / distribution network and a communication network,
Own vehicle position detecting means for detecting the position of the electric vehicle;
A communication means for acquiring a power price or a power demand that varies over time via the communication network;
Past the electric vehicle care - RiTakashi discharged discharge location, a travel history accumulated arrival time and departure time of the electric vehicle in this charge-discharge location on a daily basis, and the electricity price, or the power demand Storage means for storing;
The vehicle position detection means, the communication means, the storage means and a control means for controlling the in-vehicle storage battery,
The control means, at the departure place before the electric vehicle travels on the same day, the charge / discharge location from the departure location to the final destination traveling on the current day from the travel history, and the arrival at the charge / discharge location. Extracting the time and the departure time, and determining the start time and the end time of charging / discharging of the in-vehicle storage battery according to the power price or the power demand amount between the arrival time and the departure time. A vehicle-mounted navigation device.   The storage means further stores a reference charge / discharge location connected to the power transmission / distribution network for charging / discharging the in-vehicle storage battery of the electric vehicle, and the control means is configured to store the charge / discharge location from the reference charge / discharge location. The vehicle-mounted navigation device according to claim 1, wherein:   Furthermore, it has a display part which displays the said charging / discharging place determined by the said control means, the said arrival time and the said departure time in this charging / discharging place, and the charging / discharging start time and end time of the said vehicle-mounted storage battery. The in-vehicle navigation device according to claim 1.   The said control means determines the start time and end time of charging / discharging of the said vehicle-mounted storage battery so that it may charge when the said electric power price is low, or it discharges when the said electric power price is high. The vehicle-mounted navigation device according to 1.   The said control means determines the start time and end time of charging / discharging of the said vehicle-mounted storage battery so that the said vehicle-mounted storage battery may be charged when the said electric power demand amount is small. Car navigation system.   The in-vehicle navigation device according to claim 1, further comprising a remaining power measuring unit that measures a remaining power of the in-vehicle storage battery. Furthermore, an input operation means is provided,
The control means is configured to provide at least one of the charging / discharging location, the arrival time and departure time of the own vehicle, and the charging / discharging start time and end time of the storage battery from the input operation means to the user by access from the user. The vehicle-mounted navigation device according to claim 1, wherein the vehicle navigation device is updated. A charge / discharge control method for an in-vehicle storage battery of an electric vehicle by an in-vehicle navigation device connected to an electric power network having a power transmission / distribution network and a communication network,
Obtaining a power price or power demand that varies over time via the communication network;
A discharge location which is the electric vehicle care - RiTakashi discharge in the past, and storing the travel history accumulated and said electrical arrival time and departure time of the vehicle in this charge-discharge location on a daily basis,
Extracting the charging / discharging location from the departure location to the final destination traveling on the current day, the arrival time and the departure time from the travel history at the departure location before the electric vehicle travels on the current day ; ,
Determining a start time and an end time of charging / discharging of the in-vehicle storage battery according to the power price or the power demand amount between the extracted arrival time and the departure time;
A charge / discharge control method for an in-vehicle storage battery, comprising the step of running the electric vehicle and charging / discharging at a start time and an end time of the charge / discharge of the in-vehicle storage battery. Further, the method includes a step of storing a reference charging / discharging location connected to the power transmission / distribution network for charging / discharging the in-vehicle storage battery,
The charge / discharge control method for an in-vehicle storage battery according to claim 8, wherein the charge / discharge location is extracted from the reference charge / discharge location.   Charging and discharging start and end times of the in-vehicle storage battery are determined so that the in-vehicle storage battery is charged when the power price is low and the in-vehicle storage battery is discharged when the power price is high. The charging / discharging control method of the vehicle-mounted storage battery according to claim 8.   The charge of the in-vehicle storage battery according to claim 8, wherein a start time and an end time of charging / discharging of the in-vehicle storage battery are determined so that the in-vehicle storage battery is charged when the power demand is small. Discharge control method.   When the electric vehicle is scheduled to run after charging / discharging at the charging / discharging location, the amount of power for charging / discharging the in-vehicle storage battery at the charging / discharging location is adjusted, and the remaining amount of power required for the driving schedule of the electric vehicle is exceeded. The charge / discharge control method for an in-vehicle storage battery according to claim 8, wherein   The user updates at least one of the charge / discharge location, the arrival time and departure time of the electric vehicle, and the charge / discharge start time and end time of the in-vehicle storage battery. The charge-discharge control method of the vehicle-mounted storage battery of description.

Images