WO2014162524A1

WO2014162524A1 - Display control device, display control method, and display control program

Info

Publication number: WO2014162524A1
Application number: PCT/JP2013/060133
Authority: WO
Inventors: 福田　達也; 安士　光男; 進大沢; 廣瀬　智博; 崇古庄
Original assignee: パイオニア株式会社
Priority date: 2013-04-02
Filing date: 2013-04-02
Publication date: 2014-10-09
Also published as: JPWO2014162524A1; JP6085671B2

Abstract

　This display control device (100) is equipped with: a first acquisition unit (101) that acquires information concerning the route to the destination; a second acquisition unit (102) that acquires information about energy supply facilities that are present in the vicinity of the route and that supply energy to a vehicle; and a display control unit (103) that divides up information concerning energy supply facilities into facilities which are present in each of a plurality of ranges to which the vehicle can travel with a plurality of set predetermined energy quantities, and displays this information on the display unit. The display control unit (103) displays the distance to the energy supply facility and/or the energy consumption required for the vehicle to travel to the energy supply facility, for each of the energy supply facilities.

Description

Display control apparatus, display control method, and display control program

The present invention relates to a display control device, a display control method, and a display control program for displaying an energy supply facility for a moving body up to a destination. However, the use of the present invention is not limited to the display control device, the display control method, and the display control program.

Conventionally, when searching for a route of a moving body, based on the current position and the remaining battery level, a travelable range centered on the current position and a power supply station existing in the range are displayed. In addition, there is a technique that presents a route that minimizes the required time in consideration of the time required for charging, the time required to travel to the power supply station, and the like (see, for example, Patent Document 1 below).

JP 2003-21522 A

In the above-mentioned conventional technology, it is possible to display a plurality of power supply stations that exist within the travelable range, but it is possible to display a plurality of appropriate power supply stations according to the battery capacity that gradually decreases during actual travel. Can not. The request for charging timing differs for each user. There is a demand for a user to set the charging timing immediately before the battery capacity is exhausted in order to reduce the number of times of charging in consideration of time and effort for charging the battery. There is a demand for other users to set the charging timing with a sufficient battery capacity so that the travel to the destination is not hindered and the battery does not run out. Conventionally, a power supply station suitable for these different charging timings cannot be displayed.

In order to solve the above-described problems and achieve the object, a display control device according to the invention of claim 1 is provided around a first acquisition unit that acquires information about a route to a destination, and moves around the route. A second acquisition unit that acquires information about an energy supply facility that supplies energy to the body and information about the energy supply facility exist in each of the ranges in which the mobile body can travel with a predetermined amount of energy set. A display control unit that is divided into facilities and displayed on a display unit.

The display control method according to the invention of claim 6 is the display control method implemented by the display control device, the first acquisition step of acquiring information relating to the route to the destination, and the movement that exists in the vicinity of the route. A second acquisition step of acquiring information about an energy supply facility for supplying energy to the body and information about the energy supply facility exist in each of the ranges in which the mobile body can travel with a predetermined amount of energy set. And a display control step of displaying the information on a display unit divided into facilities.

The display control program according to the invention of claim 7 causes a computer to execute the display control method according to claim 6.

FIG. 1 is a block diagram of an example of a functional configuration of the display control apparatus according to the first embodiment. FIG. 2 is a flowchart of an example of a processing procedure of the display control apparatus according to the first embodiment. FIG. 3 is a block diagram illustrating an example of a hardware configuration of the navigation device. FIG. 4 is a flowchart illustrating an example of a processing procedure of the navigation device according to the embodiment. FIG. 5 is a diagram illustrating a display example (part 1) of a route to a destination and an energy supply facility. FIG. 6 is a diagram showing a display example (part 2) of the route to the destination and the energy supply facility. FIG. 7A is a diagram illustrating a display example (part 3) of the route to the destination and the energy supply facility. FIG. 7-2 is a diagram of a display example of the route to the destination and the energy supply facility (part 3).

DETAILED DESCRIPTION Exemplary embodiments of a display control device, a display control method, and a display control program according to the present invention will be described below in detail with reference to the accompanying drawings. In the following description, the display control device is mounted on an EV (Electric Vehicle) vehicle, charges electric energy with the energy supply facility, and performs a route search including a recommended route that considers the route through the energy supply facility when searching for the route. It explains using. Note that the present invention is not limited to EV electric energy charging, and can be similarly applied to a gasoline refueling facility in a gasoline vehicle.

(Embodiment 1)
FIG. 1 is a block diagram of an example of a functional configuration of the display control apparatus according to the first embodiment. The display control apparatus 100 according to the embodiment includes a first acquisition unit 101, a second acquisition unit 102, and a display control unit 103. Further, the reception unit 104 may be provided.

The first acquisition unit 101 acquires information related to the route to the destination of the moving object. For example, the searched route from the current position to the destination is acquired. The second acquisition unit 102 acquires information about an energy supply facility (such as a power supply station) that exists around the route acquired by the first acquisition unit 101 and supplies energy to the moving body.

The display control unit 103 classifies the information related to the energy supply facilities into facilities that exist in each of the ranges in which the mobile body can travel with a predetermined amount of energy set (for example, every 10% of the fully charged energy amount). Display on a display unit (not shown).

For example, the display control unit 103 displays information related to the energy supply facility in relation to the first energy supply facility that exists in a range in which the mobile body can travel with the first energy amount (for example, 10% of the fully charged energy amount). And second energy different from the first energy supply facility that exists in a range in which the mobile body can travel with a second energy amount (for example, 20%, 30%,... Information related to the supply facility is displayed on the display unit in an identifiable display mode.

If the amount of energy consumed is the amount of energy consumed, for example, it is divided every 10% from 0% to 100% of the amount of energy consumed relative to the fully charged energy amount along the route, and the energy supply facilities included in this range are displayed. . 100% is, for example, a point that can be reached by running from a fully charged state. In addition, when the remaining battery level is displayed, for example, 100% to 0% of the remaining energy amount with respect to the fully charged energy amount is displayed along the route.

“Display along the route” may be displayed along the route on the map. For example, a display area of the energy supply facility is provided at the lower part of the display screen, and the energy present in each of the 10% areas is displayed. Display supply facilities.

The display control unit 103 displays either or both of the distance to the energy supply facility and the energy consumption necessary for the mobile body to travel to the energy supply facility, or both of them.

The accepting unit 104 can accept the selection of at least one of the energy supply facilities displayed by the display control unit 103 from the user. By this selection, the first acquisition unit 101 acquires information related to a route that passes through the selected energy supply facility. In some cases, the vehicle can be driven without charging, and the user may not select charging. In this case, the minimum consumption of the non-charging, the shortest time, and the shortest distance route information are displayed.

A route search method acquired by the first acquisition unit 101 will be described. A general route search is realized by a shortest route search algorithm on a network expressed by links and nodes. When the user sets a destination, a route that minimizes the total cost from the departure point to the destination is searched by the shortest route search algorithm. Common shortest path search algorithms include the A ^* (Aster) search algorithm, the Dijkstra method, the Warsal Floyd method, and the like.

The route search unit searches based on information on route search conditions (destination, required time, required distance, etc.), current position, vehicle speed, and traffic jam. The route search unit reads road data stored in a storage unit or the like, and determines a recommended route from the first node (for example, current position) to the second node (for example, destination) based on the cost.

Then, the route search unit includes the first cost (Σcost1) that is the accumulated cost in the route from the first node to the second node, and the cost between the nodes that are not associated with the energy supply facility node ID in the route. The recommended route is determined on the basis of the second cost (Σcost2) that is the accumulated cost. For the recommended route, for example, predetermined weighting is performed on each of the first cost and the second cost, and the route that minimizes the sum of the weighted first cost and second cost is determined as the recommended route. For example, the route with the shortest time and the shortest distance from the current position to the destination is obtained as the recommended route.

The storage unit stores a road link data table including node data, link data for connecting nodes, and cost data set for each link. As a result of acquiring information on the energy supply facility, an identifier (node ID) of the energy supply facility node indicating the node where the nearest energy supply facility (charging spot) is located is stored in association with each node.

The route search unit and the storage unit may be provided in a moving body in which the display control device 100 is provided, or provided outside the moving body, for example, in a server, and the display control device 100 is provided by communication with the moving body. It is good also as a structure to acquire.

FIG. 2 is a flowchart of an example of a processing procedure of the display control apparatus according to the first embodiment. The display control apparatus 100 uses the first acquisition unit 101 to acquire a route to the destination of the moving object (step S201). In addition, the second acquisition unit 102 acquires information on energy supply facilities existing around the route (step S202). Then, the display control unit 103 displays the information on the energy supply facility by dividing it into predetermined energy ranges (step S203).

According to the above embodiment, the information of the energy supply facility can be displayed for each energy amount on the route when the moving body moves to the destination. For example, an energy supply facility in a movable route range with an energy amount of 0 to 10% of the consumed energy amount with respect to the fully charged energy amount is displayed. Similarly, other energy supply facilities in the path range that can be moved with different energy amounts, for example, energy amounts of 10% to 20%, are displayed.

This allows the user to grasp a plurality of energy supply facilities that exist for each energy amount (distance) on the route to the destination. Thus, the user can easily know how much energy is consumed by which energy supply facility when energy is consumed. And even if the timing of energy replenishment differs for each user, an appropriate energy replenishment facility can be displayed and guided to each user.

Hereinafter, examples of the present invention will be described. In the present embodiment, an example in which the present invention is applied will be described with the navigation device 300 mounted on a vehicle as the display control device 100.

(Hardware configuration of navigation device 300)
Next, the hardware configuration of the navigation device 300 will be described. FIG. 3 is a block diagram illustrating an example of a hardware configuration of the navigation device. In FIG. 3, a navigation device 300 includes a CPU 301, ROM 302, RAM 303, magnetic disk drive 304, magnetic disk 305, optical disk drive 306, optical disk 307, audio I / F (interface) 308, microphone 309, speaker 310, input device 311, A video I / F 312, a display 313, a communication I / F 314, a GPS unit 315, various sensors 316, and a camera 317 are provided. Each component 301 to 317 is connected by a bus 320.

CPU 301 governs overall control of navigation device 300. The ROM 302 records a boot program and a display control program. The RAM 303 is used as a work area for the CPU 301. That is, the CPU 301 controls the entire navigation device 300 by executing various programs recorded in the ROM 302 while using the RAM 303 as a work area.

The magnetic disk drive 304 controls the reading / writing of the data with respect to the magnetic disk 305 according to control of CPU301. The magnetic disk 305 records data written under the control of the magnetic disk drive 304. As the magnetic disk 305, for example, an HD (hard disk) or an FD (flexible disk) can be used.

The optical disk drive 306 controls reading / writing of data with respect to the optical disk 307 according to the control of the CPU 301. The optical disk 307 is a detachable recording medium from which data is read according to the control of the optical disk drive 306. As the optical disc 307, a writable recording medium can be used. In addition to the optical disk 307, an MO, a memory card, or the like can be used as a removable recording medium.

Examples of information recorded on the magnetic disk 305 and the optical disk 307 include map data, vehicle information, road information, travel history, and the like. Map data is used when searching for routes in car navigation systems. Background data that represents features (features) such as buildings, rivers, ground surfaces, and energy supply facilities, and road shapes that represent road shapes with links and nodes. It is vector data including data.

The voice I / F 308 is connected to a microphone 309 for voice input and a speaker 310 for voice output. The sound received by the microphone 309 is A / D converted in the sound I / F 308. For example, the microphone 309 is installed in a dashboard portion of a vehicle, and the number thereof may be one or more. From the speaker 310, a sound obtained by D / A converting a predetermined sound signal in the sound I / F 308 is output.

The input device 311 includes a remote controller, a keyboard, a touch panel, and the like provided with a plurality of keys for inputting characters, numerical values, various instructions, and the like. The input device 311 may be realized by any one form of a remote control, a keyboard, and a touch panel, but can also be realized by a plurality of forms.

The video I / F 312 is connected to the display 313. Specifically, the video I / F 312 is output from, for example, a graphic controller that controls the entire display 313, a buffer memory such as a VRAM (Video RAM) that temporarily records image information that can be displayed immediately, and a graphic controller. And a control IC for controlling the display 313 based on the image data to be processed.

The display 313 displays icons, cursors, menus, windows, or various data such as characters and images. As the display 313, for example, a TFT liquid crystal display, an organic EL display, or the like can be used.

The camera 317 captures images inside or outside the vehicle. The image may be either a still image or a moving image. For example, the outside of the vehicle is photographed by the camera 317, and the photographed image is analyzed by the CPU 301, or a recording medium such as the magnetic disk 305 or the optical disk 307 via the video I / F 312. Or output to

The communication I / F 314 is connected to the network via wireless and functions as an interface between the navigation device 300 and the CPU 301. Communication networks that function as networks include in-vehicle communication networks such as CAN and LIN (Local Interconnect Network), public line networks and mobile phone networks, DSRC (Dedicated Short Range Communication), LAN, and WAN. The communication I / F 314 is, for example, a public line connection module, an ETC (non-stop automatic fee payment system) unit, an FM tuner, a VICS (Vehicle Information and Communication System) / beacon receiver, or the like.

The GPS unit 315 receives radio waves from GPS satellites and outputs information indicating the current position of the vehicle. The output information of the GPS unit 315 is used when the CPU 301 calculates the current position of the vehicle together with output values of various sensors 316 described later. The information indicating the current position is information for specifying one point on the map data such as latitude / longitude and altitude.

Various sensors 316 output information for determining the position and behavior of the vehicle, such as a vehicle speed sensor, an acceleration sensor, an angular velocity sensor, and a tilt sensor. The output values of the various sensors 316 are used for the calculation of the current position of the vehicle by the CPU 301 and the amount of change in speed and direction.

In the display control apparatus 100 shown in FIG. 1, the CPU 301 executes a predetermined program using programs and data recorded in the ROM 302, RAM 303, magnetic disk 305, optical disk 307 and the like in the navigation apparatus 300 described above, and the navigation apparatus The function is realized by controlling each unit in 300. And this navigation apparatus 300 searches a route by the program execution of CPU301 also about the route search part mentioned above.

(Example of display control in the embodiment)
FIG. 4 is a flowchart illustrating an example of a processing procedure of the navigation device according to the embodiment. The execution processing content of CPU301 of the navigation apparatus 300 is shown. First, the CPU 301 receives a destination setting by the user (step S401). With this destination setting, the CPU 301 searches for a route from the current position to the destination (step S402). In this route search, for example, a route with the shortest time to the destination is searched without considering charging. Alternatively, a route with the shortest distance is searched. Next, the CPU 301 searches for a plurality of energy supply facilities around the searched route (step S403).

Thereafter, the CPU 301 searches for a route to the destination via the energy supply facility, and calculates the power to the energy supply facility and the power of the entire route (step S404). The process in step S404 is to search for a route that passes through all energy supply facilities, and does not display a screen or the like (executed by the CPU 301).

Thereafter, the CPU 301 classifies the charging location candidates based on the power to the energy supply facility and displays them on the display unit (step S405). Thereafter, when the displayed energy supply facility is selected by the user's operation (step S406), the CPU 301 determines a route passing through the selected energy supply facility and displays it on the display unit (step S407).

(Example of calculating the energy consumption of the route)
Here, an example of calculating the energy consumption amount of the above-described route (between links to the destination) will be described. The following example is an example of power consumption energy in an EV vehicle. The route search unit of the CPU 301 calculates the amount of energy consumption per unit time using one of the following energy consumption estimation formulas (1) to (4), and the vehicle travels the link during the travel time. Calculate the amount of energy consumed when finishing.

The energy consumption estimation formula shown in the above equation (1) is a theoretical formula for estimating the energy consumption per unit time during acceleration and traveling. Where ε is the net thermal efficiency and η is the total transmission efficiency. Assuming that the sum of the acceleration α of the moving object and the acceleration of gravity g from the road gradient θ is the combined acceleration | α |, the energy consumption estimation formula when the combined acceleration | α | is negative is expressed by the above equation (2). . That is, the energy consumption estimation formula shown in the above equation (2) is a theoretical formula for estimating the energy consumption per unit time during deceleration. Thus, the energy consumption estimation formula per unit time during acceleration / deceleration and travel is expressed by the product of travel resistance, travel distance, net motor efficiency, and transmission efficiency.

In the above formulas (1) and (2), the first term on the right side is the energy consumption (first information) consumed by the electronic device arranged on the moving body including the electrical components. The second term on the right side is the energy consumption (fourth information) due to the gradient component and the energy consumption (third information) due to the rolling resistance component. The third term on the right side is energy consumption (third information) due to the air resistance component. Further, the fourth term on the right side of the equation (1) is the energy consumption (second information) by the acceleration component. The fourth term on the right side of equation (2) is the energy consumption (second information) due to the deceleration component.

In the above formulas (1) and (2), the motor efficiency and drive efficiency are assumed to be constant. However, in practice, the motor efficiency and the driving efficiency vary due to the influence of the motor speed and torque. Therefore, the following equations (3) and (4) show empirical equations for estimating the energy consumption per unit time.

The empirical formula for calculating the estimated energy consumption when the combined acceleration | α + g · sin θ | is positive, that is, the empirical formula for calculating the estimated energy consumption per unit time during acceleration and traveling is (3) It is expressed by a formula. The empirical formula for calculating the estimated energy consumption when the combined acceleration | α + g · sin θ | is negative, that is, the empirical formula for calculating the estimated energy consumption per unit time during deceleration is the following formula (4): It is expressed.

In the above formulas (3) and (4), the coefficients a1 and a2 are constants set according to the vehicle situation. The coefficients k1, k2, and k3 are variables based on energy consumption during acceleration. Further, the speed V and the acceleration α are set, and other variables are the same as the above formulas (1) and (2). The first term on the right side corresponds to the first term on the right side of the above equations (1) and (2).

In the above formulas (3) and (4), the second term on the right side is the energy of the gradient resistance component in the second term on the right side and the acceleration in the fourth term on the right side in the formulas (1) and (2). It corresponds to the energy of the resistance component. The third term on the right side corresponds to the energy of the rolling resistance component in the second term on the right side and the energy of the air resistance component in the third term on the right side in the above equations (1) and (2). Β in the second term on the right side of the equation (4) is the amount of potential energy and kinetic energy recovered (hereinafter referred to as “recovery rate”).

Also, as described above, the navigation device 300 calculates the travel time required for the vehicle to travel the link, and calculates the average speed and average acceleration when the vehicle travels the link. Then, the navigation device 300 uses the average speed and average acceleration of the vehicle at the link, and the vehicle travels on the link in the travel time based on the consumption energy estimation equation shown in the following equation (5) or (6). You may calculate the estimated energy consumption at the time of finishing.

The energy consumption estimation formula shown in the above equation (5) is a theoretical formula for calculating the estimated energy consumption at the link when the altitude difference Δh of the link on which the vehicle travels is positive. The case where the altitude difference Δh is positive is a case where the vehicle is traveling uphill. The consumption energy estimation formula shown in the above equation (6) is a theoretical formula for calculating the estimated energy consumption amount in the link when the altitude difference Δh of the link on which the vehicle travels is negative. The case where the altitude difference Δh is negative is a case where the vehicle is traveling downhill. When there is no difference in altitude, it is preferable to use the energy consumption estimation formula shown in the above formula (5).

In the above formulas (5) and (6), the first term on the right side is the energy consumption (first information) consumed by the equipment provided in the moving body. The second term on the right side is the energy consumption (second information) by the acceleration resistance. The third term on the right side is energy consumption consumed as potential energy (fourth information). The fourth term on the right side of the equation (6) is the energy consumption (third information) due to the air resistance and rolling resistance (running resistance) per unit area.

The navigation device 300 may calculate the estimated energy consumption amount of the vehicle with the road gradient θ = 0 in the energy consumption estimation formula shown in the above formulas (1) to (6) when the road gradient is not clear.

(Example of route to destination and energy supply facility)
FIG. 5 is a diagram illustrating a display example (part 1) of a route to a destination and an energy supply facility. The display control device 100 displays a map of the route from the current position S to the destination G on the display screen 500 by route search with priority on power consumption. The display example of FIG. 5 shows a path A that can reach the destination G at 100% or less of the amount of battery full charge (before the battery runs out).

Then, the display control apparatus 100 displays information on the total travel distance from the current position S to the destination G and power consumption (energy consumption amount) 501 at the top (upper right) of the display screen 500. In the lower part of the display screen 500, the amount of energy consumed from the current position to the destination is displayed in a plurality of stages in a horizontal row.

The display of FIG. 5 shows 10 levels divided every 10% when the remaining battery level at the departure point is fully charged (100%). ˜502j) are displayed. Then, candidate information (facility name and power consumption from the section start point) of the energy supply facilities 503 (503a to 503j) existing in each section is displayed.

Suppose that a desired energy supply facility 503 (in the illustrated example, energy supply facility 503g) is selected by operation of the user. In this case, the CPU 301 displays and outputs the route when the energy supply facility 503g is stopped as a search result. The route A on the display screen 500 is changed to the route when the user stops at the energy supply facility 503g (dotted line in the figure) and displayed. As a result, the user can easily determine on the map the extent to which the road deviates when passing through the energy supply facility 503g.

In the display example of FIG. 5, when there are a plurality of energy supply facilities 503 in one section 502 (for example, the energy consumption indicated by the section 502c is in the range of 20% to 30%), these are arranged in the vertical direction and become a plurality of candidates. The energy supply facility 503 may be displayed.

Further, in the display example of FIG. 5, the amount of energy consumption that differs every 10% is classified, but the value of the current remaining battery capacity itself may be displayed. Then, the remaining battery level (predicted value) may be displayed by the division 502 for each of a plurality of steps (for example, 10 steps) to reach the destination, and the energy supply facilities 503 existing in each division 502 may be displayed.

In addition, the current state of the energy supply facility 503h, for example, a full vehicle display 503ha that cannot be supplied with energy, and a display that indicates outside business hours may be displayed together.

FIG. 6 is a diagram showing a display example of the route to the destination and the energy supply facility (part 2). The display example of FIG. 6 shows a path A that can reach the destination G at 60% or less of the battery full charge amount (before the battery runs out). In this case, only display up to 60% classification 502 (502a to 502f) is performed.

Further, in the example shown in FIG. 6, as the information on the candidates for the energy supply facilities 503 (503a to 503f), the name of the facility, the distance from the division start point, and the total number of travel distances when passing through the energy supply facility 503 And the total energy consumption are respectively displayed. Thus, the user can easily determine which energy supply facility 503 can be used to reduce the total number of travel distances (and the total energy consumption).

FIGS. 7-1 and 7-2 are diagrams showing a display example of the route to the destination and the energy supply facility (part 3). These display examples show a case where the destination G cannot be reached even when the battery is fully charged at the current position. An example where 150% energy consumption is required for full charge will be described.

In this case, for example, on the first screen shown in FIG. 7A, only the display within the range that can be reached by full charge, that is, the category 502 (502a to 502j) up to 100% is performed. Correspondingly, the route A that cannot be reached on the display screen 500 is displayed in a predetermined form (dotted line in the figure). After that, by switching the display, the second screen shown in FIG. 7-2 displays up to the section 502 (502k to 502o) from 110% to 150%.

In addition, energy is replenished at the energy replenishment facility 503c in the section 502c (in the range of 20% to 30%) shown in FIG. 7-1, and the energy in the section 502l (in the range of 110% to 120%) shown in FIG. An example in which energy is replenished in the energy replenishment facility 503l is shown.

Further, as shown in FIG. 7A, when there is no energy supply facility 503d in the section 502d, the energy supply facility is not displayed in the section 502d portion and is blank.

In this way, in the embodiment, it is possible to respond to energy supply on the way to the destination, and it is possible to display a route that cannot reach the destination even when fully charged at the current position together with the energy supply facility. it can.

In the embodiment described above, a plurality of energy supply facilities within a certain range are extracted from the optimal route from the current location to the destination, the route to each energy supply facility is searched, and the power consumption is calculated by the power consumption prediction formula. To do. For example, a plurality of energy replenishment facilities are classified for each range that can be reached by the amount of power divided every 10% of the full charge power amount, and energy replenishment facilities for each range are selected as candidates, for example, with information on expected power consumption indicate. Then, a route to the destination passing through the energy supply facility selected by the user is calculated and displayed together with information such as a travel distance and a travel power amount.

In the above configuration, the amount of energy consumption is set to every 10% of the full charge power amount, but is not limited thereto, and may be set to, for example, every 20%, and the unit of the category is determined by the size of the display screen or the user's selection. Can be set. In addition, when there are multiple energy supply facility candidate display numbers, a predetermined number (for example, in order of energy supply facilities closest to the recommended route) is displayed according to a predetermined condition, or scrolling in accordance with this condition in the order of conformity. May be displayed as a whole.

Also, the user may be able to select the energy supply facility candidates in the priority item order set in advance (for example, by management company, by type of power that can be supplied). Information displayed for energy supply facility candidates includes travel time to the energy supply facility, travel distance, ratio of power consumption to full charge, name of energy supply facility, payment fee, type of power that can be supplied, Fully empty (vacant) information, travel distance for a route to a destination including an energy supply facility, power consumption, ratio of power consumption to full charge, and the like may be used. Information displayed for the route includes time including charging time, average speed, maximum speed, maximum height difference, number of right / left turns, number of signals, and the like.

And according to the said structure, the driving | running route via the energy supply facility according to the preference according to a user can be selected in the path | route in which several energy supply facilities exist.
1. Users who want to charge early (for example, when driving carefully at night, when driving at night, during the year-end and New Year holidays) 2. A user who wants to charge near the destination (for example, to increase the amount of power at the destination) User who wants to keep battery charge energy within a certain range (for battery life) 4. Users who give priority to a stand in an area with multiple energy supply facilities (if the stand is crowded, you want to change to another point) A user who wants to find a charging station or a charging station of his / her family 6. Users who want to select only energy supply facilities that support quick charging (time saving) 7. There are users who want to select a highway route (the route has a large width), and can respond to the requests of these users.

In the embodiment, the configuration in which the route guidance is displayed and controlled using the navigation device has been described, but the display control may be performed using an information terminal such as another smartphone.

(Embodiment 2)
In the first embodiment described above, a single device navigation device is used as the display control device. However, a system configuration in which data communication is performed between the server and the terminal by wireless communication or the like may be employed. The terminal includes a communication unit that communicates the current position and destination to the server through wireless communication, a display unit, and an audio output unit. The server includes the display control unit 100 and the route search function shown in FIG. 1, performs the recommended route guidance processing shown in Embodiment 1, and wirelessly transmits the recommended route information to the terminal. The terminal displays and outputs the recommended route output from the server on the display unit. As a terminal, the above-described smartphone or navigation device can be used.

As described above, according to each embodiment, a route when a plurality of energy supply facilities are displayed according to the relationship with the battery capacity and a desired energy supply facility is selected according to the user's request. Can be displayed. For example, the user selects an energy replenishment facility according to the request of “I want to charge while the battery has enough space” and the request of “I want to recharge when the battery is reduced as much as possible”, and passes through this energy replenishment facility. You can now display the route to the destination.

The display control method described in this embodiment can be realized by executing a program prepared in advance on a computer such as a personal computer or a workstation. This program is recorded on a computer-readable recording medium such as a hard disk, a flexible disk, a CD-ROM, an MO, and a DVD, and is executed by being read from the recording medium by the computer. The program may be a transmission medium that can be distributed via a network such as the Internet.

DESCRIPTION OF SYMBOLS 100 Display control apparatus 101 1st acquisition part 102 2nd acquisition part 103 Display control part 104 Reception part 300 Navigation apparatus

Claims

A first acquisition unit that acquires information about a route to the destination;
A second acquisition unit that acquires information about an energy supply facility that exists around the route and supplies energy to the moving body;
A display control unit that divides the information on the energy supply facility into facilities that exist in each of the ranges in which the mobile body can travel with a predetermined amount of energy set, and displays the information on a display unit;
A display control apparatus comprising:
The display control unit displays the distance to the energy supply facility and / or the energy consumption necessary for the mobile body to travel to the energy supply facility for each of the energy supply facilities. The display control device according to claim 1.
A reception unit that receives a selection of at least one of the energy supply facilities displayed by the display control unit from a user;
The first acquisition unit acquires information on the route through the selected energy supply facility.
The display control apparatus according to claim 1.
2. The display control unit according to claim 1, wherein when there are a plurality of the energy supply facilities in the range in which the mobile body can travel with a predetermined energy amount, the display control unit displays in order of conformity with a predetermined condition. The display control apparatus described.
The display control unit includes, as information about the energy supply facility, the name of the energy supply facility, the travel time to the energy supply facility, the ratio of the amount of power consumption to the full charge amount, the payment fee, the type of power that can be supplied, and the fullness information The display control device according to claim 1, wherein one or more of a travel distance and a power consumption amount for a route to a destination including an energy supply facility are displayed.
In the display control method performed by the display control device,
A first acquisition step of acquiring information on a route to the destination;
A second acquisition step of acquiring information about an energy supply facility that exists around the route and supplies energy to the moving body;
A display control step of displaying information on the display unit by dividing the information on the energy supply facility into facilities that exist in each of the ranges in which the mobile body can travel with a plurality of predetermined energy amounts set,
A display control method comprising:
A display control program for causing a computer to execute the display control method according to claim 6.