JP2012093096A - Navigation device for guiding electric vehicle charging facility - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a "navigation device for guiding an electric vehicle charging facility" arranged so that an electric vehicle charging stand is made selectable, which is capable of completing the charge in the time being played in an excursion facility as far as possible, in the case the charging facility is selected which is corresponded to a remained electric energy at present of a battery of the electric vehicle.SOLUTION: When a user makes out a drive plan based on inputted destination and via-point, an electric vehicle charging stand (EVST) established along with the via-point is detected within the area allowed to travel, which is obtainable by a remained electric energy of the present battery of the electric vehicle. When the via-point established along with the EVST exists within the area allowed to travel, this via-point is decided as a prearranged charging place. When such a via-point does not exist, the EVST is detected within an easily walkable area such as 800 m distant from the via-point. When such a via-point exists, the EVST is set in the new via-point in place of the detected via-point and a guide route including the new via-point is brought up, and when the via-point does not exist, at least one EVST near from the guide route as much as possible is detected.

Description

  In an electric vehicle (EV) that runs using a motor as a drive source, the present invention searches and guides a waypoint with a battery charging facility as a power source when the destination and the waypoint are set. The present invention relates to a navigation facility for guiding an electric vehicle charging facility.

  Due to environmental problems in recent years, problems of oil removal, etc., electric vehicles (EVs) that run using a motor as a drive source are becoming popular. However, such an electric vehicle has very few EV stands (EVST) for charging a battery of an electric vehicle as compared with a gasoline station or a gasoline station for a diesel vehicle which has been used conventionally. It is a major factor that hinders the spread of

  Therefore, in such an electric vehicle, charging stations for electric vehicles are initially installed in a relatively narrow range with as high a density as possible. In particular, electric vehicles are spread in that range, and the range is gradually expanded. Expansion of bases nationwide is being considered. In addition, since an electric vehicle can travel about 100 km with a single charge, it can be used for relatively long-distance driving. For this reason, charging facilities are installed at gas stations on major roads, as well as large commercial facilities, aiming to spread electric vehicles nationwide.

  On the other hand, navigation devices that have been widely used in the past calculate a guide route to a destination through a transit point arbitrarily set by the user, and travel safely and reliably to the destination according to the guide route. Guidance is provided so that you can do it.

  In such a navigation device, for example, for a family vacation or the like, the user visits various vacation facilities along the route to the destination to a certain extent and then reaches the destination to reach the destination. The travel plan is also set by calculating a guide route to reach the destination through each of the via points efficiently. Such a function is also called a drive plan creation function and is one of the convenient functions of the navigation device.

  When creating the drive plan as described above, a navigation device mounted on the vehicle can be created by a touch panel, a remote control operation, or the like. On the other hand, recent navigation devices include, for example, a memory card slot, a USB slot, etc., and a memory card is directly inserted into the memory card slot, or a USB memory with a built-in memory is inserted into the USB slot. It is widespread that various data recorded in the above are read and used for various functions of navigation devices.

  In addition, when taking in external data in such a navigation device, various types of data of the mobile phone can be freely taken in by a widely used data communication function with mobile phones.

  Therefore, when creating a drive plan as described above, first, as shown in FIG. 13A, for example, a personal computer equipped with software for performing a drive plan creation function operable in common with the navigation device, for example, Select and set various favorite destinations and destinations.

  Thereafter, for example, as shown in FIG. 13B, the drive plan as described above is transmitted from the personal computer to the mobile phone by the communication function of both. A mobile phone incorporating the drive plan in this manner is brought into the vehicle, and the drive plan incorporated in the mobile phone is navigated as shown in FIG. 13C by the communication function between the navigation device and the mobile phone as described above. The data is sent to the device, and the navigation device uses this data to calculate the guide route from the current location to each destination via the route and create a drive plan list that lists the route points in the order according to the guide route. To do.

  In order to import a drive plan created by such a personal computer into a navigation device in the vehicle, in addition to importing via a mobile phone as shown in FIG. 13, a drive plan created by a personal computer is imported to a memory card or a USB memory. The data can also be transferred by inserting it into each slot of the navigation device. In addition, the drive plan created on the PC at that time should be at least data for specifying the location of the destination and waypoints, and then the navigation device incorporating this data passed through each waypoint from the current location to the destination. It is possible to calculate an optimum guide route and create a drive plan list in which transit points are arranged appropriately.

  As described above, in the navigation device that is created by the navigation device body or the data created by the personal computer by various methods, various conditions such as general road priority, highway priority, etc. are obtained by the guidance route calculation function as described above. The optimum guidance route is calculated and presented in step (1), and the route selected by the user is set as the guidance route. At this time, when the vehicle equipped with the navigation device is an electric vehicle, A drive plan must be made in consideration of charging the battery.

  That is, in an electric vehicle, when the capacity of the battery that is a power supply source for the motor of the drive source is different, the maximum charging capacity is changed, and there is not enough time for the user, the vehicle is not fully charged. You may be forced to start. In addition, since charging stations (EVST) for electric vehicles will become widespread from a state where there are not as many as conventional gasoline stations, it is extremely difficult to provide guidance for charging points corresponding to the current remaining battery power. It is important.

  In addition, various methods are currently being studied for charging such electric vehicles as described above. The most common method is charging at each home, as well as charging facilities installed in various facilities. Will be done. At that time, it is expected that the time required for charging will be approximately 2 hours.

  Therefore, the user of the electric vehicle has to wait in the meantime. Therefore, while performing the above-described charging in the facility where the charging facility exists, the user has to spend time at or near the facility. However, when the facility equipped with such a charging facility is a transit point of the drive plan as described above, charging is terminated while performing the original vacation at the facility, so it does not become a big burden, Convenient.

  In electric vehicles, in order to reduce the time it takes to charge at the charging facility, the technology to calculate the arrival time to the destination considering the charging time, guiding nearby dining places, tourist spots, leisure facilities etc. It is disclosed in Patent Document 1.

JP 2006-112932 A

  As described above, in an electric vehicle, since it takes a lot of time for charging, it is important to use the time effectively. However, when traveling by creating a drive plan as described above, it is not possible to know where the battery must be charged after the traveling is started.

  In addition, for example, the remaining battery power at the time of departure can be found from the car meter, the mileage that must be charged first can be found, and the charging location can be searched, but charging at that location is not possible. You may have to drive without being fully charged. Further, even if the remaining electric energy at the time of departure is known by a meter, the travelable distance is known, and the travelable waypoint is known, it may be impossible to travel the planned distance due to traffic congestion. For this reason, it is not possible to obtain a suitable drive plan based on the assumption that the remaining amount of battery power at the start of travel or full charge at the charging location, and it is possible to effectively use the time during the charging time. There are many cases where this is not possible.

  Therefore, according to the present invention, when a charging facility is selected in consideration of the remaining amount of electric power of the current battery of the electric vehicle, a drive that can select a waypoint with a charging facility that can effectively use the charging time can be selected. It is a main object of the present invention to provide a charging facility guidance navigation apparatus for an electric vehicle that can easily create a plan and does not consume useless time in a battery charging facility.

  In order to solve the above problems, an electric vehicle charging facility guidance navigation apparatus according to the present invention includes a guide route calculation means for calculating a guide route passing through a destination and a waypoint input by a user, and a battery for a drive source of the electric vehicle. The remaining power amount detecting means for detecting the remaining power amount of the vehicle, the travelable distance calculating means for calculating the travelable distance by the remaining power amount detected by the remaining power amount detecting means, and the travelable distance calculating means For the waypoints existing within the range of the travel distance, the waypoint-equipped electric vehicle charging stand detection means for detecting whether or not an electric vehicle charging stand is provided, and the waypoint-attached electric vehicle charging station detection means, When an electric vehicle charging station is installed in the cruising range, an electric vehicle charging station that is within a predetermined distance of the intermediate point is not detected. When detecting the electric vehicle charging station within a predetermined distance at the waypoint within the travelable distance range by the waypoint proximity electric vehicle charging station detection means and the waypoint proximity electric vehicle charging station detection means An electric vehicle using waypoint setting means for setting the electric vehicle charging station to the waypoint instead of the route point, and the guide route calculating means calculates a guide route passing through the waypoint proximity electric vehicle charging station. It is characterized by doing.

  In addition, another electric vehicle charging facility guidance navigation device according to the present invention is a drive plan list creation for creating a list that sequentially displays the waypoints and destinations along the guidance route in the electric vehicle charging facility guidance navigation device And an electric vehicle charging station related icon display unit for displaying an icon related to the electric vehicle charging station for each waypoint of the list created by the drive plan list creating unit, and the electric vehicle charging station related icon display In the means, an icon for displaying whether or not each waypoint exists within the range of the travelable distance calculated by the travelable distance calculation means, and whether or not a charging station for an electric vehicle is attached to the waypoint, And an electric vehicle in the vicinity of the transit point by the transit point proximity electric vehicle charging station detection means. And displaying an icon indicating that the moving vehicle charging station exists.

  Further, another electric vehicle charging facility guidance navigation device according to the present invention is the electric vehicle charging facility guidance navigation device, in which the electric vehicle charging station is in proximity to the waypoint by the waypoint proximity electric vehicle charging stand detection means. A drive plan change instruction that detects that the user has instructed the icon display indicating that there is a vehicle and changes the electric vehicle charging station to the waypoint and changes to the waypoint and calculates the guidance route And the guidance route calculation means calculates a guidance route that passes through the intermediate point electric vehicle charging station when the instruction is given by the drive plan change instruction means.

  In addition, another electric vehicle charging facility guidance navigation device according to the present invention is the electric vehicle charging facility guidance navigation device, wherein the drive plan list creation means detects the electric vehicle detected by the via-position proximity electric vehicle charging station detection means. The charging station is displayed as a transit location, and the electric vehicle charging station related icon display means displays an icon of the transit location proximity electric vehicle charging station for the transit location of the transit location proximity electric vehicle charging station. And

  In addition, another electric vehicle charging facility guidance navigation device according to the present invention detects an electric vehicle charging station existing within a predetermined distance from the guidance route calculated by the guidance route calculation means in the electric vehicle charging facility guidance navigation device. When the electric vehicle charging station is not detected within a predetermined distance from the waypoint within the travelable distance by the waypoint proximity electric vehicle charging station detection unit, the guidance route The electric vehicle charging station detected by the proximity electric vehicle charging station detection means is set as a new waypoint, and the guidance route passing through the new waypoint is calculated by the guidance route calculation means.

  Further, another electric vehicle charging facility guidance navigation device according to the present invention is an electric vehicle charging facility guidance navigation device, wherein in the electric vehicle charging facility guidance navigation device, it is detected that the electric vehicle is scheduled to be charged within a predetermined distance. Vehicle charging station approach detection means, and when the electric vehicle charging station approach detection means detects that the vehicle charging station is scheduled to be charged within a predetermined distance, it outputs a guidance to that effect. A stand approach guidance output means is provided.

  According to another electric vehicle charging facility guidance navigation device according to the present invention, in the electric vehicle charging facility guidance navigation device, the electric vehicle charging station related icon display means detects that charging has ended at the electric vehicle charging station. In this case, the display of the icon related to the electric vehicle charging station in the drive plan list is changed and displayed in accordance with the remaining power amount detected by the remaining power amount detecting means.

  Since the present invention is configured as described above, when selecting a charging facility that takes into account the remaining amount of electric power of the current battery of an electric vehicle, the charging can be completed while spending time at an amusement facility at a transit point. A car charging station can be selected as the charging facility, so that time is not wasted for charging the battery.

It is a functional block diagram of the Example of this invention. It is an operation | movement flowchart of the Example. It is an operation | movement flowchart which performs the process of step S1 of FIG. It is an operation | movement flowchart which performs the process of step S7 of FIG. It is an operation | movement flowchart which performs the process of step S9 of FIG. It is a figure which shows the example of the drive plan list display charging facility related icon. It is a figure which shows the example of simple drive plan creation which does not consider a charging facility. (A) is a figure which shows the example of drive plan creation by a personal computer etc., (b) is a figure which shows the example at the time of detecting the driving | running | working possible range and the presence or absence of a charging stand, and displaying an icon on a waypoint, (c () Is a diagram showing a display example of the drive plan list at that time. (A) is a figure which shows the example of drive plan creation after charging at the waypoint in the middle of driving, (b) shows the example of the waypoint proximity EVST detection, and (c) shows the drive plan list display example at that time. FIG. (A) shows the example of a change of the guidance route when a stopover EVST is set as a stopover, (b) is a figure which shows the example of a drive plan list display at that time. (A) is a figure which shows the detection example of guidance path | route proximity | vicinity EVST, and shows the drive plan lith after charging at the stopway C, and a display change example. (A) shows an example of a guidance route when the guidance route proximity EVST is set as a new waypoint, and (b) is a diagram showing a drive plan list display example at that time. It is a figure which shows the method of creating a simple drive plan with a personal computer and transferring the data to a vehicle-mounted navigation device via a mobile phone.

  Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a functional block diagram of an embodiment of the present invention, and shows a functional block diagram in which the present invention can be implemented in various modes. In addition, in the same figure, the function part which performs each function can be said to be a means which performs each function.

  In the embodiment shown in FIG. 1, use of an electric vehicle charging stand (EVST) for performing a process of creating a drive plan using the electric vehicle charging stand (EVST) for a navigation device that has been widely used conventionally. The example provided with the drive plan preparation process part 31 is shown.

  Therefore, in the navigation apparatus shown in FIG. 1, as in the conventional navigation apparatus, software for comprehensively controlling various functional units is recorded in the ROM, and the CPU performs an operation using the RAM as appropriate and performs a desired operation. A system control unit 10 that operates is provided, and each function unit connected to the system control unit 10 can perform a predetermined function as a navigation device.

  A vehicle position detection unit 13 is connected to the system control unit 10 and position data of the GPS receiver 11 is input. Further, if necessary, the vehicle from the travel distance / orientation detection unit 12 using a vehicle speed sensor or an angle sensor. The current position of the vehicle is accurately detected by inputting the movement data. Further, the VICS information input unit 14 can receive FM radio waves, beacons, etc., capture traffic information, and particularly input traffic jam information.

  In the instruction signal input unit 17, various instruction signals can be input by the remote controller 15 or by recognizing a voice as a user instruction signal, and further by a touch panel operation of the monitor 20. The data input / output unit 19 fetches necessary map data, facility information, etc. from a map / information data recording medium 18 such as a DVD-ROM or a hard disk or a memory card, and the data recording medium is like a hard disk or a memory card. If you can easily write data, record the drive plan etc. sent by the data transmission / reception function of the memory card, USB memory, or mobile phone so that you can read and use it. Recording on the map / information data recording medium 18 is also possible.

  The image output unit 21 outputs various images that the navigation device guides the user to the monitor 20. The voice output unit 23 outputs important guidance on the guidance route from the speaker 22 as a voice output of the navigation device, and also outputs a warning if necessary.

  The electric vehicle charging stand (EVST) use drive plan creation processing unit 31 performs processing for creating a drive plan using the electric vehicle charging stand as effectively as possible in the present invention, and the drive plan creation unit therein In 32, as in the case of the conventional drive plan creation, in the destination / route setting unit 33, the user can use the various methods conventionally used to reach the final destination that suits the user's preference. Enter various facilities as transit points.

  At this time, when inputting the destination or waypoint, as described above, the navigation apparatus main body can be set by a user's selection instruction signal using a touch panel, a remote controller, etc. In addition, as shown in FIG. In addition, drive plan data created using a home personal computer and including data related to at least destination and waypoint location data can be stored in, for example, a memory card, a USB memory, or a mobile phone as shown in FIG. It can also be loaded into a vehicle-mounted navigation device by a data transmission / reception function or the like.

  The guide route calculation unit 34 calculates the guide route from the current position to the destination through the way points with respect to the destination and way points set by the destination / route point setting unit 33. At that time, as in the prior art, an optimum guide route can be calculated and presented to the user under various conditions such as general road priority and highway priority. Note that a personal computer as shown in FIG. 13 can also calculate a guide route by internal software based on the destination and waypoint input here, and transfer the data to the navigation device as a drive plan.

  The guidance route calculation unit 34 calculates the guidance route for the first drive plan set according to the user's preference as described above, and as will be described later, the current remaining battery power of the vehicle and the electric vehicle Even when a new waypoint is obtained by detection of the charging station, a new guidance route from the current position of the vehicle to the destination is calculated.

  The drive plan list creation unit 35 creates a list in which transit points are arranged in the order of travel from the current location to the destination according to the guidance route calculated by the guidance route calculation unit 34 as described above. At that time, in addition to creating a simple drive plan list listing the places you want to go with this drive as described above, after calculating the guide route to go efficiently to those vacation facilities, drive according to the order to go A plan list is created. Furthermore, when EVST is not provided at a transit point in the present invention, when the EVST searched for using EVST is changed to a transit point or added as a new transit point, a new guide route is calculated. A drive plan list according to the new guidance route will also be created.

  In the EVST (electric vehicle charging station) using waypoint setting unit 36, when charging is performed at the electric vehicle charging station as described later, the EVST is not provided at the first setting place, so When the EVST close to the route is used, or when the EVST close to the route is used when there is no EVST close to the waypoint, according to the instruction of the drive plan change instruction unit 37, Change or set the waypoint for using the electric vehicle charging station. By the setting of the new waypoint, the guide route calculation unit 34 calculates a new guide route.

  In the drive plan change instructing unit 37, when the EVST is not provided at the transit point of the travelable range for the simple drive plan created without considering the electric vehicle charging station as described above, When it is detected that it is not possible to travel as scheduled due to traffic jams or the like and it is necessary to change the electric vehicle charging station to be used, even when driving according to the guidance route using the drive plan storage unit 38 It is determined whether or not the current drive plan stored in is to be changed, and when it is determined that the change is necessary, an instruction is given to change.

  In the drive plan storage unit 38, when the user determines the guidance route calculated by the guidance route calculation unit 34, the drive plan according to the guidance route is updated every time the guidance route is changed as described above. Remember. The EVST detection unit 39 detects an electric vehicle charging station that conforms to a predetermined condition such as the remaining electric energy, and the transit point EVST detection unit 40 therein is first created as described above. For a simple drive plan that does not take into account the electric vehicle charging station, is there a transit point with an electric vehicle charging station in the range that can be driven with the remaining power from the current position to the current drive plan at first? Detect whether or not. Further, when a changed drive plan is created thereafter, the same detection is newly performed at that time.

  In the transit point proximity EVST detection unit 41, the transit point existing in a position that seems to be appropriate for charging at the transit point in the simple drive plan initially set by the transit point EVST detection unit 40 as described above. When it is detected that no electric vehicle charging stan is provided, an electric vehicle charging station existing in a range where a user can easily walk, for example, 800 m from the waypoint, is detected. The electric vehicle charging station detected at this time is, for example, a facility where an electric vehicle charging station is provided in a conventional roadside gas station, and the facility itself provided with the electric vehicle charging station is, for example, 2 hours. Even if it is not a facility that can kill time, etc., it can be enjoyed at the original transit point where you can walk from there during the charging time. Therefore, when such an electric vehicle charging station is detected, it can be used effectively.

  The guidance route proximity EVST detection unit 42 always uses this drive plan when an appropriate electric vehicle charging station cannot be detected by any of the stopover EVST detection unit 40 and the stopover EVST detection unit 41 as described above. Since it is necessary to set the charging place, the detection range is gradually expanded to detect the electric vehicle charging station near the current guidance route. In that case, an electric vehicle charging station within a predetermined distance such as 3 km is detected from the guidance route within the travelable range, and the distance from the guidance route is close and within the travelable range. The electric vehicle charging station far from the current location of the vehicle is detected automatically by appropriate weighting, or an electric vehicle charging station that is considered appropriate by the user's selection. In this detection, first, an electric vehicle charging station existing within a range of 3 km from the guidance route as described above is searched, and when none is found, the search is performed by expanding the range in order until at least one is found.

  In the travel range inside / outside detection unit 43, the distance data of the range that can be traveled by the current remaining battery power calculated by the travelable distance calculation unit 47 as described above is captured and detected by the respective detection units. The range of the electric vehicle charging station is set, and each EVST detection unit 40 to 42 detects whether the vehicle is within the driving range or out of the range.

  The user selection instruction detection unit 44 detects instruction signals for various processes in the drive plan creation processing unit 31 using the electric vehicle charging station, instructed by the instruction signal input unit 17. The EV (electric vehicle) charging end detection unit 45 detects that the charging has ended when the electric vehicle charges at the charging stand. Here, when the end of charging is detected, that is, it is detected that the charging signal has changed to a charging end signal, or that the charging station has been exited.

  The remaining power amount detection unit 46 always detects the remaining power amount of the battery of the electric vehicle. Especially when the end of charging is detected by the electric vehicle charging end detection unit 45, the remaining power amount greatly changes and the battery On the other hand, since charging may be completed without starting full charge, the remaining electric energy is measured and reflected in the creation of a drive plan in consideration of the next charge performed thereafter.

  When the remaining power amount detecting unit 46 detects the remaining power amount as described above, the travelable distance calculating unit 47 calculates the distance that the electric vehicle can travel on average based on the data. Therefore, in this electric vehicle, the remaining electric energy of the battery is periodically detected during driving, and the data is output to the drive plan creation unit 32 and the EVST detection unit 39 at the beginning of the departure or after charging When it is determined that there is no need to change the created charging schedule, and it is determined that it is necessary to change the charging location due to more power consumption than planned, the detection of the EVST facility and the detected EVST For example, a change process of a guidance route using the scrambler is performed.

  In the EVST related icon display unit 48, various information about the electric vehicle charging station obtained as a result of the search process of the electric vehicle charging station in the present invention is displayed as an icon as shown in FIG. 6, for example, in the drive plan list. . With regard to the EVST presence / absence via point icon 49, an indication as to whether or not an electric vehicle charging station is attached to the facility such as the via point initially set in the drive plan and, if necessary, the destination, etc. Do. In the current travelable range inside / outside 50, the display mode is changed depending on whether or not the waypoints are within the travelable range with the current remaining battery power. When displaying these icons, detection data from the EVST detection unit 39 is used.

  As a result, as shown in FIG. 6 (a), a thick EVST icon with a rectangular thick frame indicates that the vehicle is a transit point where EVST is added within the travelable range according to the current remaining electric energy. At that time, as shown in FIG. 5B, for the EVST side route where charging is particularly performed, a display that can be clearly distinguished from other flash display or the like may be displayed. A thin EVST icon having a rectangular thin frame as shown in FIG. 6C indicates that the current EV is out of the travelable range depending on the current remaining power amount, and that the EVST is a transit point.

  In addition, as shown in FIG. 6D, the EVST icon with a rectangular thin frame and a dark EVST icon with an “X” mark is within the driving range depending on the current remaining electric energy, but the EVST is also provided. Display that it is a stopover location. Furthermore, as shown in FIG. 6 (e), the EVST icon with a rectangular thin frame and a thin EVST icon with an “X” is outside the driving range depending on the current remaining power amount, and has an EVST. Show that there is no waypoint.

  For example, as shown in FIG. 6 (f), the EVST icon 51 that is within the currently travelable range is within the travelable range depending on the current remaining power amount. An EVST icon scheduled to be used for charging within a predetermined distance such as 800 m is displayed. Further, in the current travelable range guidance route within a predetermined distance EVST icon 52, for example, as shown in FIG. 6 (g), a dark EVST icon with a thick circular broken line frame is within the travelable range by the current remaining power amount. Among the existing EVSTs, an icon indicating that the EVST is determined to be charged relatively close to the guidance route is displayed.

  Further, in the within-travelable range via-point proximity EVST presence display icon 53, as shown in FIG. 6 (h), it is driven by the current remaining power amount as shown in FIG. 6 (c) by the white arrow icon. When it is indicated that the route is within a possible range and does not have an EVST, the icon is displayed adjacent to the icon, so that a predetermined distance such as 800 m from the route is displayed. Indicates that EVST exists within a distance of.

  In the planned charging EVST approach detection unit 54, when the vehicle is set up in advance with various charging stations as described above, or the charging station where the electric vehicle charging station is scheduled to be charged, the current position is set as the charging planned site. For example, it is detected that the vehicle has approached within a predetermined distance such as 3 km. The signal is output to the scheduled charging EVST approach guidance output unit 55, and the fact that the scheduled charging EVST is approaching the driver is displayed on the screen and further by voice.

  In the navigation apparatus shown in FIG. 1, when the guidance route calculation unit 34 of the electric vehicle charging station (EVST) use drive plan creation processing unit 31 calculates the guidance route in consideration of the charging station as described above, It memorize | stores in the guidance route memory | storage part 56. FIG. Therefore, when the guidance route is changed by changing the planned charging location, the stored content of the guidance route storage unit 56 is also changed. The guidance route guidance unit 57 outputs guidance for the newest guidance route stored in the guidance route storage unit 56 so that the vehicle can safely travel to the destination, including the charging guidance as described above.

  In the present invention consisting of functional blocks as shown in FIG. 1, it can be implemented by an operation flow as shown in FIG. 2, for example. In the EV (electric vehicle) drive plan creation / guidance process shown in FIG. 2, first, a simple drive plan creation process as shown in FIG. 3 is performed.

  That is, in the example of the simple drive plan creation process shown in FIG. 3, the initial destination and waypoint are set (step S21). When setting the destination and waypoints, as shown in FIG. 13, on the personal computer of the house, while taking in the wishes of the family, various leisure facilities are selected and set as waypoints, and this is a list of drives Create a plan. As shown in FIGS. 5B and 5C, the destination and waypoints can be set in step S21 by taking them into a vehicle-mounted navigation device via a mobile phone. However, in addition to setting the destination and waypoint in this way, it can also be set directly by the vehicle-mounted navigation device.

  Next, a guide route that appropriately passes through the route from the current location to the destination is calculated (step S22), and then the route is sequentially displayed from the current location to the destination (step S23). The drive plan created here, and the drive plan list that displays the destination and waypoints in order, are drive plans that do not take into account the charging stations that should be used in electric vehicles, and are called “simple drive plans” Can do. At this time, for example, a simple drive plan list as shown in FIG. 3B is created and displayed. Thereafter, in step S24, the process proceeds to step 2 in FIG.

  In step S2 of FIG. 2, the remaining electric energy of this electric vehicle (EV) is detected. Next, a transit point and a destination in a range where the vehicle can travel based on the current remaining electric energy detected in step S2 are detected (step S3). Thereafter, in the example of FIG. 2, it is determined whether or not the vehicle can travel to the destination (step S4).

  When it is determined in step S4 that the vehicle can travel to the destination, an EVST facility is searched in step S11, an EVST icon is displayed in the drive plan list, and the drive plan is determined. When this EVST icon is displayed, all the waypoints and destinations are icon display within the travelable range, and display division is performed as to whether or not the EVST is attached. Accordingly, here, any one of the icons (a) and (c) in FIG. 6 is displayed at each waypoint in the list.

  After that, in step S12, the guidance route is guided according to the created drive plan, and then the process proceeds to step S10, where it is determined whether or not the destination has been reached. The remaining electric energy is detected, and when it is involved in an unscheduled traffic jam, predetermined EVST usage guidance can be provided.

  In step S4, when it is determined that the current remaining electric energy cannot travel to the destination, the EVST intermediary location is searched for among the transitable transit locations. This operation is performed in the way as described above in the EVST detection unit 40 in the EVST detection unit 39 of FIG.

  After that, it is determined whether or not there is an EVST intermediary location in the transit range of the travelable range (step S6). If it is determined that such an EVST stopover location exists, the process proceeds to step S8, and a driveable EVST icon is displayed at the driveable EVST stopover location in the drive plan list to confirm this drive plan. At that time, the icon shown in FIG. 6B is displayed in the drive plan list at the via-sites along with the EVST, and in addition, the respective icons relating to the EVST usability of each via-site are displayed.

  In addition, when it is determined in step S6 that there is no waypoint with EVST at the waypoint within the travelable range, as shown in FIG. 4, the EVST use drive plan when EVST is not present at the travelable waypoint as shown in FIG. A creation process is performed (step S7).

  That is, in the EVST-use drive plan creation process when EVST is not present at the travelable via point shown in FIG. 4, it is within a predetermined distance range that the user can easily walk from, for example, 800 m from the transit point of the first travelable range. A search is performed to determine whether EVST is present (step S31). Thereafter, it is determined whether or not there is a transit point where the EVST exists within a predetermined distance. When it is determined that the EVST exists, the process proceeds to step S33, and an EVST proximity icon is assigned to the EVST proximity transit point in the simple drive plan list display. At this time, the icon shown in FIG. 6H is displayed at the corresponding waypoint.

  Thereafter, it is determined whether or not the user has touched the EVST proximity icon (step S34), and when touched, the process proceeds to step S35 to set the selected EVST as a transit point instead of the EVST proximity transit point, and then to a new one. A guidance route is calculated (step S42). When it is determined in step S34 that the user does not touch the EVST proximity icon, that is, when the EVST proximity icon is displayed as described above and the use of the icon is appropriately given and a predetermined time has elapsed. If not, the process proceeds to step S36 as described later.

  In step S32, when the EVST determines that there is no waypoint within a predetermined distance, and as described above, it is determined that the user has not touched the EVST proximity icon in step S34. For example, it is raining. Alternatively, when it is determined that it is not appropriate to use such EVST because it is scheduled to rain, the process proceeds to step S36.

  In step S36, an EVST within a predetermined distance such as 3 km is searched from the guidance route. At this time, first, a search is performed at a predetermined distance within 3 km as described above, and it is determined whether or not EVST exists within the range in step S37. If not, the search range is determined in step S41. For example, the same search is performed by extending 1 km, and the process is repeated until at least one is searched. About this search result, you may represent detected EVST on the map in the guidance route display (step S34).

  After this process, one or a plurality of EVSTs close to the guidance route are detected and displayed as appropriate, and then the user selects the EVST to be used (step S39). When it is known that the electric vehicle cannot travel to the destination with the current remaining power amount to the destination, the EVST must be used. Therefore, one of the EVSTs is selected as described above. .

  As a result of the selection, the selected EVST is added as a charging use EVST to a new waypoint (step S40). Thereafter, the process proceeds to step S42, where a new guide route is calculated as described above, and via points are sequentially displayed on the drive plan list in accordance with the new guide route (step S43), and a predetermined EVST icon is displayed at the via point of the new drive plan list. In step S44, the process proceeds to step S9 in FIG.

  In step S9 of FIG. 2, a charge-corresponding guidance route guidance process after the start of vehicle travel is performed as shown in FIG. That is, in the dielectric guidance route guidance process after the start of vehicle travel in FIG. 5, this process is started from the first vehicle travel (step S51). Next, the farthest EVST in the travelable range is selected. At this time, for example, when there are a plurality of transit points that are equipped with EVST among a plurality of transit points that are initially set, it is more efficient to use the farthest EVST. Unless it is performed, the farthest EVST is selected. However, when there is no EVST stopover location, the stopover proximity EVST and the guidance route proximity EVST obtained as described above are already limited to one.

  Next, the distance between the detected EVST and the current location is calculated (step S53), and it is determined whether or not the selected EVST is within a predetermined distance (step S54). Here, when it is determined that the distance is not within the predetermined distance, the traveling of the vehicle is confirmed and the operation is repeated. When it is determined that the EVST selected in step S54 is within a predetermined distance such as 3 km, for example, the process proceeds to step S55, and information indicating that the EVST has reached the scheduled charging EVST is output. At this time, in addition to displaying that on the monitor, guidance to that effect may be given by voice.

  Next, it is determined whether or not the vehicle has arrived at the EVST (step S56). When it is determined that the vehicle has not yet arrived, the process returns to the step S55 to continue the guidance output such as screen display and repeat the operation. When it is determined in step S56 that the vehicle has arrived at the EVST, it is determined whether or not the charging has been completed (step S57). When the charging has not been completed yet, this operation is repeated until the charging is completed. When it is determined that the charging is completed, the process proceeds to step S10 in FIG. 2 in step S58.

  In step S10 of FIG. 2, it is determined whether or not the point where charging is completed in step S9 is a destination, and in step S12 as described above, it is determined that the vehicle can travel to the destination with the remaining electric energy. In this state, when guiding the guidance route according to the created drive plan, it is determined whether or not the vehicle has arrived at the destination. If it is determined that the destination is not yet reached, the process returns to step S2 to detect the remaining electric energy of the electric vehicle in the same manner as described above, and the subsequent drive plan corresponding to the remaining electric energy is processed in the same manner as described above. create. Further, when it is determined in step S10 that the destination has been reached, this series of processing is terminated (step S13).

As a result of performing the operation as described above, the present invention performs drive plan creation and drive plan list display processing as shown in FIGS. That is, FIG. 7 shows the creation of a simple drive plan first performed in the present invention and a list display example thereof. FIG. 7A shows an actual map display and a destination “Odawara”. Set up as a castle, and from there you would like to go from the starting point of this electric car to the Kurihama Flower Country, Kanagawa Flower Center Ofuna Botanical Garden, Kakimoto branch, and Enoshima Aquarium. This shows the state when setting the direction as a transit point.

  FIG. 7 (b) shows that it is appropriate to travel in the order shown in the figure as a result of calculating the guide route from the current location to the destination “Odawara Castle” through each vacation facility as described above. Shows a list display state. Therefore, this drive plan is a drive plan that does not yet consider the use of an electric vehicle charging station, and can be called a “simple drive plan”.

  FIG. 8 (a) shows an example of a drive plan created by a personal computer as shown in FIG. 13, for example, and the guidance route and the waypoint created as described above are made different for the convenience of explanation. Show. Here, the state where the charging stand of the electric vehicle is not yet considered is shown. In the same figure (b), the vehicle-mounted navigation device takes in the simple drive plan created by a personal computer or the like as described above, and calculates the range in which those transit points can travel with the remaining electric energy at the start of traveling, An example is shown in which EVST icons are distinguished and displayed depending on whether each transit point is within or out of the travelable range, and whether or not a charging station is attached to each transit point. This is as shown in FIG.

  Thereby, it is predicted that the vehicle can travel with the remaining electric energy at the time of departure up to the route point D, and the route point D and the route point E are shown as route points that are not provided with EVST. As a result, when the drive plan list is displayed, the EVST icon as described above is displayed at each waypoint in the simple drive plan list shown in FIG. 7B as shown in FIG. .

  However, in this display, when EVST that is actually charged is selected and charging is performed at “Kanagawa Prefectural Flower Center Ofuna Botanical Garden” at the transit point C, for example, as shown in FIG. An icon display in which the available EVST icon is flash-displayed can be used. Therefore, when the electric vehicle starts to travel, the drive plan list shown in FIG. The drive plan list display including such EVST icon display is performed in step S8 of FIG.

  FIG. 9 shows a state in which the EVST-use drive plan is recreated by running with the drive plan as described above and charging with the EVST attached to the waypoint C as scheduled. FIG. 4B shows an enlarged view of the route point C to the destination point F in FIG. 4A. As described above, EVST is not provided in the facilities of the route point D and the route point E as described above. As a result of searching whether EVST exists within a predetermined distance within a range where the user can easily walk, for example, 800 m from the waypoint, the state where such EVST is detected at the waypoint E Is shown. This state corresponds to the state where it is determined in step S32 of FIG.

  As a result, when the drive plan list is displayed, an arrow icon as an EVT proximity icon as shown in FIG. 6 (h) is displayed in addition to the EVST icon display as shown in FIG. 9 (c). This icon portion becomes a user's intention display input portion that uses this EVST when a finger or the like is touched on the touch panel.

  Here, when the EVST proximity icon is touched, the location where the vehicle travels is not the transit point E, but the position of the charging use scheduled EVST where the EVST exists is set as a new transit point, and a new guidance route is calculated. As a result, for example, as shown in FIG. 10 (a), the route becomes a guide route via the charging use schedule EVST (Ea), and the drive plan list is “ “Enoshima Aquarium Proximity EVST” is displayed, and icons as shown in FIG. Since the display of such a circular frame indicates the next charging use EVST when traveling with the current remaining electric energy, guidance for the EVST is performed in the EVST charging guidance.

  In addition, in the list display example of FIG. 10B, “Enoshima Aquarium”, which has actually stopped traveling, is also an initially set vacation facility. Although an example of displaying on foot is shown, it can also be displayed in another mode. Further, when searching for the EVST proximity waypoint, for example, even when EVST matching such a condition is detected in the waypoint D, it is not preferable because it is a short distance from the waypoint C at the start of travel. The waypoint E as described above is set automatically or by user selection.

  FIG. 11 shows an example in which the processing from step S36 onward in FIG. 4 is performed. After charging at the EVST provided at the waypoint C in the same manner as described above, there is no EVDT near the waypoint thereafter. Or, even if it exists, for example, when it is close to the transit point D and the user determines that it is not appropriate because it is too close to the current location, it is within the range where the remaining power can travel from the current location. An example of detecting and setting EVST that exists in a place as far as possible from the guidance route is shown.

  In the example of FIG. 11A, as a result of searching for EVST existing within a range of 3 km from the guidance route, EVSTs of Da and Db are detected, and EVST of Eb is detected at a position relatively close to the waypoint E. An example is shown. The search result of the guide route proximity EVST is selected by the user by displaying the distance from the current position, the distance from the guide route, and the like in the search result list, in addition to the display as shown in FIG. You can also ask them to

  Also, when setting the distance range from the guidance route, if there is no appropriate EVST as a result of the search as described above, the distance from the guidance route is gradually increased as in step S41 of FIG. A similar search may be performed. Furthermore, when there are a plurality of EVSTs that meet the above-described conditions, a specific EVST may be automatically selected and presented according to the distance from the current location and the distance from the guide route as described above. good.

  In the example of FIG. 11 (a), Eb EVST is selected, and as a result, as shown in FIG. 12 (a), the Eb EVST is set to a new waypoint, and a new guide route is calculated. Fig. 6 (b) shows an example of the drive plan list display at this time. After "Enoshima Aquarium", "stop for charging" is added as a transit point. A guidance route proximity EVST icon as shown in g) is displayed.

  In the present invention, the present invention can be implemented in various modes as described above. In addition, for example, although an EVST stopover location is detected, it is too close to the current location. It can be implemented in various modes, such as detecting EVST or guidance path proximity EVST, or displaying them all to prompt the user to select.

10 System controller
11 GPS receiver 12 Travel distance / azimuth detection unit 13 Vehicle position detection unit 14 VICS information input unit 15 Remote control 16 Voice recognition unit 17 Instruction signal input unit 18 Map / information data recording medium 19 Data input / output unit 20 Monitor 21 Image output unit 22 Speaker 23 Audio Output Unit 31 Electric Vehicle Charging Station (EVST) Utilization Drive Plan Creation Processing Unit 32 Drive Plan Creation Unit 33 Destination / Intermediate Location Setting Unit 34 Guide Route Calculation Unit 35 Drive Plan List Creation Unit 36 EVST Utilization Via Location Setting Unit 37 drive plan change instruction unit 38 drive plan storage unit 39 EVST detection unit 40
41 viast proximity EVST
42 EVST proximity EVST
43 Traveling range inside / outside detection unit 44 User selection instruction detection unit 45 EV charging end detection unit 46 Remaining electric energy detection unit 47 Travelable distance calculation unit 48 EVST-related icon display unit 49 Via-site EVST presence / absence icon 50 Traveling range inside / outside 51 Within-travelable range via-site proximity EVST icon 52 Within-travelable range guidance route proximity EVST icon 53 Within-travelable range via-location proximity EVST presence display icon 54 Scheduled EVST approach detection unit 55 Scheduled EVST approach guidance output unit 56 Part 57 Guide route guide

Claims (7)

A guide route calculating means for calculating a guide route passing through the destination and waypoint input by the user;
A remaining power amount detecting means for detecting a remaining power amount of a battery for a drive source of the electric vehicle;
A travelable distance calculating means for calculating a travelable distance with the remaining power detected by the remaining power detection means;
A waypoint electric vehicle charging station detecting means for detecting whether or not an electric vehicle charging station is provided for the waypoints existing within the range of the travel distance calculated by the travelable distance calculating means,
When the intermediate vehicle electric station charging station detection means does not detect an electric vehicle charging station in the travelable distance range, an electric vehicle charging station existing within a predetermined distance of the intermediate point is detected. Proximity electric vehicle charging station detection means,
When the electric vehicle charging station is detected within a predetermined distance at the waypoint within the travelable distance range by the waypoint proximity electric vehicle charging station detection means, the detected electric vehicle charging station is changed to the waypoint. Electric vehicle use via place setting means to set on the ground,
The navigation system for an electric vehicle charging facility, characterized in that the guidance route calculation means calculates a guidance route that passes through the intermediate point electric vehicle charging station. Drive plan list creating means for creating a list that sequentially displays the waypoints and destinations along the guidance route;
Electric vehicle charging station related icon display means for displaying an icon related to the electric vehicle charging station for each waypoint of the list created by the drive plan list creating means,
In the electric vehicle charging station related icon display means, whether or not each waypoint exists within the range of the travelable distance calculated by the travelable distance calculation means, an electric vehicle charging station is attached to the waypoint. 2. An icon indicating whether or not there is an icon indicating that there is a charging station for an electric vehicle in the vicinity of the waypoint, by means of the waypoint proximity electric vehicle charging stand detection means. Electric vehicle charging facility guidance navigation device. The waypoint proximity electric vehicle charging station detection means detects that the user has indicated an icon display indicating that there is an electric vehicle charging station in the vicinity of the waypoint, and the electric vehicle charging station is Provided with a drive plan change instruction means for instructing to calculate a guide route by changing to a stopover instead of a stopover,
3. The electric vehicle charging according to claim 2, wherein, when the instruction is given by the drive plan change instruction unit, the guidance route calculation unit calculates a guidance route that passes through the intermediate point electric vehicle charging station. Facility guidance navigation device. In the drive plan list creating means, the electric vehicle charging station detected by the waypoint proximity electric vehicle charging station detecting means is displayed as a waypoint,
The electric vehicle charging station related icon display means displays an icon of a transit point proximity electric vehicle charging station for a transit point of the transit point proximity electric vehicle charging station. Car charging facility guidance navigation system. An induction path proximity electric vehicle charging station detection unit for detecting an electric vehicle charging station existing within a predetermined distance from the induction path calculated by the induction path calculation unit;
The electric vehicle charging detected by the inductive route proximity electric vehicle charging station detecting unit when the electric vehicle charging station detection unit does not detect the electric vehicle charging station within a predetermined distance from the intermediate point within the travelable distance. 2. The electric vehicle charging facility guidance navigation apparatus according to claim 1, wherein a stand is set as a new waypoint, and a guide route that passes through the new waypoint is calculated by the guide route calculation means. An electric vehicle charging station approach detection means for detecting that the electric vehicle charging station scheduled to be charged is approached within a predetermined distance; and
When the electric vehicle charging station approach detection means detects that the electric vehicle charging station scheduled to be charged is approached within a predetermined distance, a charging scheduled electric vehicle charging station approach guidance output means is provided for outputting a notification to that effect. The electric vehicle charging facility guidance navigation apparatus according to claim 1 or 5.   In the electric vehicle charging station related icon display means, when it is detected that charging has been completed at the electric vehicle charging station, the display of the electric vehicle charging station related icon in the drive plan list is detected by the remaining electric energy detection means. 2. The electric vehicle charging facility guidance navigation device according to claim 1, wherein the navigation device displays the information by changing it according to the amount of remaining power.

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