JP2013228410A - Navigation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a navigation device which allows a user to know a traveling range even when the user does not ride on an electric vehicle.SOLUTION: In a navigation device relating to the present invention, vehicle information transmitted from a communication part is received by a vehicle information display device existing in the outside of an electric vehicle and outputted toward a display device owned by a vehicle user. The vehicle information is displayed visually to the vehicle user who does not ride on the electric vehicle by existence of a display device in the outside of the electric vehicle. Furthermore, a traveling cost calculation part calculates the traveling cost using traveling cost conditions required when the traveling cost received from the outside is calculated.

Description

  The present invention relates to a navigation device.

  In recent years, a navigation device that is installed in an electric vehicle and displays a travelable distance in consideration of the amount of remaining power has been studied (for example, see Patent Document 1).

Japanese Patent Laid-Open No. 9-119839 (2nd page, FIG. 1)

  However, in the conventional navigation device as described above, the travelable range including the travel distance can be known only when the user is on the electric vehicle. If the user can only know the driving range while riding the electric vehicle, after the user decides the destination and gets on the electric vehicle, the current remaining power cannot reach the destination. Alternatively, when it is determined that the vehicle cannot make a round trip between the current location and the destination, there is a problem that it is necessary to charge the vehicle, and it takes time to leave.

  The present invention has been made to solve such problems, and an object of the present invention is to provide a navigation device that can know a travelable range even when a user is not riding an electric vehicle.

  A navigation device according to the present invention is a navigation device mounted on an electric vehicle, and includes a storage unit that stores map information and a destination, a vehicle position information acquisition unit that acquires vehicle position information, and a remaining power amount. A remaining power amount acquisition unit that acquires power, a travel cost calculation unit that calculates a power cost based on the map information, the destination, and the own vehicle position information, and can travel based on the power cost and the remaining power amount A vehicle travel range calculation unit that calculates a range, and a communication unit that transmits vehicle information including the travel range to the outside. The vehicle information transmitted from the communication unit is a vehicle existing outside the electric vehicle. The information is received by the information display device and output to the display device possessed by the vehicle user, and the vehicle information is stored in the electric vehicle by the display device. It is displayed so that it can be visually recognized by a vehicle user who is not on the electric vehicle because it exists outside, and the travel cost calculation unit travels using the travel cost condition when calculating the travel cost received from the outside. Calculate the cost.

  According to the present invention, the user can know the travelable range even when the user is not in the electric vehicle.

It is a block diagram which shows the structure of the vehicle information display system by Embodiment 1 of this invention. It is a flowchart which shows operation | movement of the navigation apparatus of the vehicle information display system by Embodiment 1 of this invention. It is a flowchart which shows operation | movement of the vehicle information display apparatus of the vehicle information display system by Embodiment 1 of this invention. It is a figure which shows the example of a display of the vehicle information of the vehicle information display system by Embodiment 1 of this invention. It is a figure which shows the other example of the example of a display of the vehicle information of the vehicle information display system by Embodiment 1 of this invention. It is a flowchart which shows operation | movement of the navigation apparatus of the vehicle information display system by Embodiment 2 of this invention. It is a flowchart which shows operation | movement of the vehicle information display apparatus of the vehicle information display system by Embodiment 3 of this invention. It is a figure which shows the example of a display of the vehicle information of the vehicle information display system by Embodiment 3 of this invention. It is a block diagram which shows the other structure of the vehicle information display system by Embodiment 3 of this invention. It is a block diagram which shows the other structure of the vehicle information display system by Embodiment 3 of this invention. It is a flowchart which shows operation | movement of the vehicle information display apparatus of the vehicle information display system by Embodiment 4 of this invention.

Embodiment 1 FIG.
1 is a block diagram showing a configuration of a vehicle information display system according to Embodiment 1 of the present invention. In the drawings, the same reference numerals are the same or equivalent, and this is common throughout the entire specification.

  As shown in FIG. 1, the vehicle information display system according to Embodiment 1 of the present invention includes a navigation device 2 mounted on an electric vehicle 1 and a vehicle information display device 3 installed outside the electric vehicle 1. doing.

  The electric vehicle 1 includes a navigation device 2 that guides a travel route from the vehicle position to a destination, a battery 5 that stores electric power, and a GPS (Global Positioning System) antenna 4 that receives radio waves transmitted from a satellite. ing.

  The navigation device 2 is mounted on the electric vehicle 1 and a storage unit 21 for storing additional information including map information, a destination including a registered destination registered in advance by a user, speed information such as a speed limit and an average speed at a peak time, and the like. The own vehicle position information acquisition unit 22 that acquires the own vehicle position information based on the GPS signal received from the GPS antenna 4, the own vehicle position information acquired by the own vehicle position information acquisition unit 22, and the storage unit 21 are stored. Based on the map information and the destination, calculate the recommended travel route in consideration of the travel cost (described later) required for traveling from the vehicle position to the destination, and use the recommended travel route to determine the destination from the vehicle position. A traveling cost calculation unit 23 that calculates an electric power cost required when traveling to the ground or when traveling from the vehicle position to the destination is provided. Map information includes road information indicated by nodes indicating points and links connecting the nodes, geographical information such as point height information, link gradient information, or the location of the facility that is the destination. The facility information shown is included. The travel cost required for traveling here is, for example, the distance of each link obtained from the map information, the road width, the type of road (such as trunk line, non-trunk line, and expressway), and the congestion time zone as additional information. This is called a link cost obtained by taking into account the various information, and serves as an index of the ease of running of the link.

  Therefore, the travel cost calculation unit 23 generally calculates a route having the smallest total link cost connecting the current location and the destination as a recommended travel route, a so-called guidance route.

  The link cost is converted into a power cost by the travel cost calculation unit 23, and a power cost necessary for traveling along the recommended travel route, that is, power consumption is calculated.

  On the other hand, as the travel cost for each link, it is also conceivable to calculate a power cost that is power consumed when traveling the link instead of the link cost. In this case, the route with the lowest total power cost is guided as the recommended travel route. That is, in this case, the route with the least power consumption (route that can be eco-operated) is guided.

  Alternatively, as the travel cost of each link, both the link cost as the above-described index of ease of travel and the power cost as the power consumption necessary to travel the link may be calculated. In this case, the trouble of converting the link cost into the power cost can be saved.

  In order to simplify the description of the following, the traveling cost is described as a superordinate concept including both the link cost and the power cost. The calculation includes a case where the stored value is simply read out.

  Further, the navigation device 2 is based on the remaining power amount acquisition unit 24 that acquires the remaining power amount from the battery 5 mounted on the electric vehicle 1, and the power cost and the remaining power amount calculated by the travel cost calculation unit 23. A travelable range calculation unit 25 that calculates a travelable distance for each destination is provided. A set of a plurality of results obtained by calculating the distance that can be traveled for each destination means a travelable range of the electric vehicle. The travelable range calculation unit 25 creates vehicle information including the calculated travelable range and charging time, stores the vehicle information in the vehicle information storage unit 27, and transmits the vehicle information to the communication unit 26. The navigation device 2 includes a communication unit 26 that transmits and receives information to and from the vehicle information display device 3. Note that the travelable range may include the travelable distance of one or more destinations.

  The storage unit 21 includes a recording medium such as an HDD (Hard Disk Drive) device, a DVD (Digital Versatile Disk) or a CD (Compact Disk), and a driving device that drives the recording medium. The vehicle information storage unit 27 that stores vehicle information is configured by a rewritable storage member such as an HDD. However, if the storage unit 21 is configured by a rewritable storage member such as an HDD, the storage unit 21 may also serve as the vehicle information storage unit 27. The own vehicle position information acquisition unit 22, the travel cost calculation unit 23, the remaining power amount acquisition unit 24, and the travelable range calculation unit 25 are controlled by a program process using a CPU (Central Processing Unit).

  The vehicle information display device 3 includes a communication unit 31 that transmits / receives information to / from the navigation device 2, a control unit 32 that outputs vehicle information received from the navigation device 2 by the communication unit 31 to the display device 6, a remote controller, a mouse Or the input part 33 comprised with a keyboard etc. is provided. The display device 6 displays the output vehicle information, and may be provided outside or inside the vehicle information display device 3 as long as it is outside the electric vehicle 1. The display device 6 provided outside the vehicle information display device 3 may be a television, a personal computer, a mobile phone display, or the like. The control unit 32 is controlled by a program process using a CPU (Central Processing Unit).

  1 illustrates the configuration in which the communication device 26 that transmits vehicle information to the vehicle information display device 3 is provided inside the navigation device 2, but may be provided outside the navigation device 2. In this case, the communication unit 26 of the navigation device 2 may be a communication device provided outside the navigation device 2 and inside the electric vehicle 1. Similarly, the communication device 31 that receives vehicle information from the navigation device 2 may be outside the vehicle information display device 3. That is, the communication unit 26 or the communication unit 31 only needs to be able to exchange necessary information regardless of the installation position. As an example of the communication unit 31 provided outside the vehicle information display device 3, a mobile phone or the like can be considered. The connection between each device and the communication device may be either wired or wireless. Further, the communication device may be mounted on a holder portion having a connector provided in each device.

  The communication between the navigation device 2 and the vehicle information display device 3 may be wireless communication. For example, when the electric vehicle 1 stops in the garage, the communication is performed by connecting with a connector. Also good. In addition, since the electric vehicle 1 is connected to a charger when the vehicle stops in the garage, the navigation device 2 and the vehicle information display device 3 are connected via a wired connection and communicated via the charger. May be. Further, the communication unit 26 of the navigation device 2 or a communication device provided outside the navigation device 2 has a function of connecting to the Internet such as a wireless LAN, and is a vehicle information display device installed at home, an automobile manufacturer, or a navigation manufacturer. 3 may communicate with the Internet via the Internet. At this time, a personal computer or a mobile phone may be used as the display device 6. Further, vehicle information may be stored in a portable storage medium such as a USB memory, and communication between the navigation device 2 and the vehicle information display device 3 may be performed. At this time, it may be carried by giving the storage function to an engine key or a mobile phone.

  FIG. 2 is a flowchart showing the operation of the navigation device of the vehicle information display system according to Embodiment 1 of the present invention.

  As shown in FIG. 2, the navigation device 2 starts a travelable range calculation process when arriving at home or when a key is off (S101). First, the vehicle position information acquisition unit 22 of the navigation device 2 acquires the vehicle position information from the GPS antenna 4, and the remaining power amount acquisition unit 24 acquires the remaining power amount (S102).

  Next, the travel cost calculation unit 23 calculates a recommended travel route using the vehicle position information acquired by the vehicle position information acquisition unit 22, the map information stored in the storage unit 21, and the registered destination. The power cost is calculated for each destination using the calculated recommended travel route, and the calculated power cost is transmitted to the travelable range calculation unit 25 (S103). If the recommended travel route is stored in the storage unit 21, the travel cost calculation unit 23 may calculate the power cost using the stored recommended travel route without calculating the recommended travel route. Good.

  The travelable range calculation unit 25 of the navigation device 2 calculates the travelable distance for each destination from the remaining power amount acquired by the remaining power amount acquisition unit 24 and the power cost calculated by the travel cost calculation unit 23, (1) You can return, (2) You can reach the destination, but you cannot return to the current location from the destination (cannot return), (3) You cannot reach the destination Is calculated (S104). For example, in the case where the travel cost calculation unit 23 calculates the one-way power cost from the vehicle position to the destination, the travelable range calculation unit 25, if the remaining power amount is twice or more the power cost, ( 1) If it is classified as being able to make a round trip and the remaining power amount is equal to or greater than the power cost from the vehicle position to the destination and less than twice the power cost from the vehicle position to the destination, (2) the vehicle can arrive at the destination If the remaining power amount is less than the power cost from the vehicle position to the destination, (3) it is classified that the destination cannot be reached. Further, when the traveling cost calculation unit 23 calculates the power costs for the forward and return routes in consideration of the gradient, the three steps (1) to (3) are performed based on the calculated power costs for the forward and return routes. Classify into: Further, when it is determined that the travelable range calculation unit 25 cannot reciprocate between the vehicle position and the destination based on the power cost and the remaining power amount, the travelable range calculation unit 25 calculates the charging time required for the reciprocation. . Next, the travelable range calculation unit 25 creates vehicle information including the travelable range and the charging time, stores the vehicle information in the vehicle information storage unit 27, and transmits the vehicle information to the communication unit 26 (S105).

  The communication unit 26 of the navigation device 2 that has received the vehicle information determines whether communication with the outside is possible (S106). If communication with the outside is possible, the vehicle information is transmitted (S107), and the process ends (S108). . If communication with the outside is impossible, the communication unit 26 terminates as it is (S108).

  In addition, when it is determined that the travelable range calculation unit 25 cannot reciprocate between the vehicle position and the destination based on the power cost and the remaining power amount, the travelable range calculation unit 25 calculates the charging time necessary for reciprocation. However, if it is determined that the destination cannot be reached based on the power cost and the remaining power, the charging time required to arrive at the destination or the charging time required to return to the destination may be calculated. Good.

  FIG. 3 is a flowchart showing the operation of the vehicle information display device of the vehicle information display system according to Embodiment 1 of the present invention.

  As shown in FIG. 3, the communication part 31 of the vehicle information display apparatus 3 receives the vehicle information from the navigation apparatus 2 (S201). Thereafter, when a start signal input by the user using a remote controller or the like is received, the vehicle information display device 3 starts a vehicle information display process (S202). The control unit 32 of the vehicle information display device 3 outputs the vehicle information received by the communication unit 31 to the display device 6, and the display device 6 displays the vehicle information (S203).

  Here, a display example of vehicle information on the display device 6 is shown.

  FIG. 4 is a diagram showing a display example of vehicle information in the vehicle information display system according to Embodiment 1 of the present invention.

  In FIG. 4, the display device 6 displays the destination as a list for each classification of the travelable range. At this time, the control unit 32 outputs to the display device 6 so as to change the display format by adding colors or highlights or the like for each classification of the travelable range. In FIG. 4, “Super XX” 71 and “△△ Elementary School” 72 are (1) a destination where a round trip can be made, and “XX Market” 73 is (2) a destination where an arrival can be made but cannot make a round trip, “XXX Station” 74 is (3) a destination that cannot arrive.

  FIG. 5 is a diagram showing another example of display of vehicle information in the vehicle information display system according to Embodiment 1 of the present invention.

  In FIG. 5, the display device 6 displays the destination as a mark on the map for each classification of the travelable range. At this time, as in the case of list display, the control unit 32 outputs to the display device 6 so as to change the display format of the mark color, shape, character, etc. for each classification of the travelable range. In FIG. 5, the travelable range for each destination is displayed by changing the shape of the mark for each classification. The circle mark is (1) the destination that can be reciprocated, and the square mark is (2) the destination that can arrive but cannot reciprocate. The ground and triangle are (3) destinations that cannot arrive. In FIG. 5, (A) to (C) are (1) destinations that can make a round trip, and (D) and (E) are destinations that can arrive (2) but cannot make a round trip, and (F) and (H) ) Is a destination that (3) cannot arrive.

  Returning to FIG. 3, the control unit 32 of the vehicle information display device 3 determines whether or not the destination displayed on the display device 6 has been selected (S <b> 204). When the destination is selected by the input unit 33, the control unit 32 outputs to the display device 6 so as to display the charging time required to arrive at the destination or the charging time required to reciprocate to the destination. The display device 6 displays the charging time (S205). After displaying the charging time, the display device 6 returns to displaying the vehicle information (S203). When the destination button is not selected by the input unit 33 and the end button 75 shown in FIG. 4 or 5 is selected, the vehicle information display device 3 ends the vehicle information display process (S206).

  As described above, according to the vehicle information display system shown in the first embodiment of the present invention, even when the user is not riding on the electric vehicle 1, that is, while traveling to a residence or the like before departure, Can know. The user can also know the charging time required to arrive at the destination or the charging time required to return to the destination. Therefore, the user can start with peace of mind. Further, charging can be started with a margin before departure, and it is noticed that the remaining amount of electric power is insufficient after getting on the electric vehicle 1, so that the situation where the departure is delayed due to charging is reduced. Furthermore, charging that is not always necessary is not repeated every day, and only when the remaining electric energy is insufficient, the number of charge / discharge cycles per period can be reduced by charging only the necessary electric energy. There is also an effect that the chance of rapid charging when there is a shortage of the remaining power amount immediately before is reduced, leading to a longer life of the battery 5.

  In the vehicle information display system shown in Embodiment 1 of the present invention, navigation device 2 calculates the power cost and the travelable range. However, the navigation device 2 calculates the power cost, transmits the remaining power amount, the destination, and the power cost to the vehicle information display device 3, and receives the remaining power amount, the destination, and the power cost. 32 may calculate the travelable range. If the own vehicle position is the same, such as when calculating the range that can be traveled from home each time, the power cost for each destination does not change, so only the remaining power amount from the navigation device 2 to the vehicle information display device for the second and subsequent times. 3, the travelable range can be calculated. Thereby, processing in the navigation device 2 can be reduced, and the amount of battery 5 used in the electric vehicle 1 can be reduced.

Embodiment 2. FIG.
In the vehicle information display system according to the first embodiment, the navigation device 2 calculates the recommended travel route using the vehicle position information, the map information, the registered destination, etc., and the power required for the calculated recommended travel route. Cost was calculated. In the vehicle information display system according to the second embodiment, the navigation device 2 calculates the power cost using the vehicle position information, the map information, the learning destination, and the learning travel pattern. Other configurations and functions are the same as those of the vehicle information display system shown in the first embodiment. Below, it demonstrates centering on a different point from Embodiment 1. FIG.

  In addition to the map information and the destination including the registered destination registered in advance by the user, the storage unit 21 of the navigation device 2 visits at a point set by the user as a destination more than a predetermined number of times or at a predetermined frequency or more. Learning destination, which is a specific location, and a learned travel pattern obtained by learning a past travel pattern (travel route and speed information). Moreover, the memory | storage part 21 may memorize | store the learning driving | running pattern containing the recommended driving | running route and speed information from a specific parking position, such as a house, to a registration destination. The travel cost calculation unit 23 of the navigation device 2 calculates a recommended travel route based on information such as the vehicle position information, map information, registered destination or learning destination, or uses a learned travel pattern stored in the power Calculate the cost. In addition, when the learned travel pattern is not stored in the storage unit 21, the travel cost calculation unit 23 uses the information such as the vehicle position information, the map information, the registered destination, or the learned destination to recommend the travel route. And the power cost is calculated based on the calculated recommended travel route. The learning travel pattern is created using the host vehicle position acquired by the host vehicle position information acquisition unit 22 and the speed information acquired by the speed information acquisition unit (not shown) and stored in the storage unit 21.

  FIG. 6 is a flowchart showing the operation of the navigation device of the vehicle information display system according to Embodiment 2 of the present invention.

  As shown in FIG. 6, the navigation device 2 starts a travelable range calculation process when arriving at home or when a key is off (S301). The travel cost calculation unit 23 of the navigation device 2 includes the own vehicle position information acquired by the own vehicle position information acquisition unit 22 from the GPS antenna 4, and the registered destination or the learning destination stored in the storage unit 21. Is acquired (S302).

  Next, the travel cost calculation unit 23 determines whether the learning travel pattern is stored in the storage unit 21 (S303). When the learned travel pattern is stored, the travel cost calculation unit 23 uses the map information, the vehicle position information, the registered destination or the learned destination, and the stored learned travel pattern to The power cost is calculated every time (S304). When the learned travel pattern is not stored, the travel cost calculation unit 23 uses the map information, the vehicle position information, information such as the registered destination or the learned destination, and additional information to determine the recommended travel route. The power cost is calculated for each destination according to the calculated recommended travel route (S305). The travel cost calculation unit 23 transmits the calculated power cost to the travelable range calculation unit 25.

  The operations of S306 to S310 after calculating the power cost of the navigation device 2 are the same as the operations of S104 to S108 of the navigation device 2 shown in the first embodiment.

  In addition, the vehicle information display device 3 that has received the vehicle information from the navigation device 2 displays a registered device or a learning destination so that the control unit 32 displays the registered destination or the learning destination for each classification of the travelable range, as in the first embodiment. The display device 6 displays a registered destination or a learning destination for each classification of the travelable range.

  As described above, according to the vehicle information display system shown in the second embodiment of the present invention, the navigation device 2 can be used at a point where the user has set a destination more than a predetermined number of times in the past or a point visited more than a predetermined frequency. The travelable range is calculated using a certain learning destination as the destination, and the control unit 32 of the vehicle information display device 3 causes the display device 6 to display the registered destination or the learning destination for each classification of the travelable range. Since the output is made, the user can easily know whether or not he / she can travel to the frequently visited destination without having to get on the electric vehicle 1 even if the destination is not registered in advance. it can. In addition, since the navigation device 2 calculates the power cost using the learned travel pattern obtained by learning the past travel pattern, the travelable range can be calculated according to the driving characteristics of the user. The travelable range can be calculated with high accuracy.

  In addition, the control unit 32 of the vehicle information display device 3 outputs so as to display the destination with the high visit frequency at the top when the display device 6 displays the registered destination or the learning destination for each classification of the travelable range. May be. As a result, the user can easily know whether or not the vehicle can travel to a frequently visited destination and whether or not charging is necessary.

Embodiment 3 FIG.
In the vehicle information display system according to the first embodiment, the navigation device 2 calculates a recommended travel route using map information, own vehicle position information, information such as a registered destination, and additional information, and the calculated recommendation. The power cost was calculated from the travel route. In the third embodiment, the vehicle information display device 3 receives a travel cost calculation condition that is a condition for calculating a destination or a travel cost by the input unit 33, and the navigation device 2 uses the map information, the own vehicle. In addition to the position information and the registered destination, the recommended travel route is calculated using the destination or travel cost calculation conditions input by the user, and the power cost is calculated based on the calculated recommended travel route. Other configurations and functions are the same as those of the vehicle information display system shown in the first embodiment. Below, it demonstrates centering on a different point from Embodiment 1. FIG.

  First, the operation of the navigation device 2 when arriving at home or when the key is off is the same as S101 to S108 shown in FIG. Next, the operation of the vehicle information display device 3 will be described.

  FIG. 7 is a flowchart showing the operation of the vehicle information display device of the vehicle information display system according to Embodiment 3 of the present invention. Moreover, FIG. 8 is a figure which shows the example of a display of the vehicle information of the vehicle information display system by Embodiment 2 of this invention. Here, FIG. 8A is an example in which the vehicle information is displayed as a list, and FIG. 8B is an example in which the vehicle information is displayed as a mark on the map. In FIG. 8A and FIG. 8B, in addition to the displays shown in FIG. 4 and FIG. 5, a destination input button and a condition input button are displayed.

  The operation from the vehicle information reception of S401 of the vehicle information display device 3 shown in FIG. 7 to the charging time display of S405 is the operation from the reception of vehicle information of S201 of the vehicle information display device 3 shown in FIG. 3 to the charging time display of S205. It is the same. In S404 of the vehicle information display device 3 of the third embodiment shown in FIG. 7, if the destination being displayed is not selected, the control unit 32 determines whether or not the start of destination input has been selected ( S406).

  As shown in FIG. 8, a destination input button 76 is displayed on the travelable range display screen of the display device 6. When the destination input button 76 is selected by the input unit 33 such as a remote controller, the control is performed. The unit 32 determines that the start of destination input has been selected.

  When the start of destination input is selected, the destination is input by the input unit 33 (S407), and the control unit 32 transmits the destination input to the navigation device 2 via the communication unit 31 (S408). . The navigation device 2 that has received the destination calculates a recommended travel route using the received destination, map information, own vehicle position, and the like, and based on the power cost, similarly to the processing of S101 to S108 shown in FIG. The travelable range is calculated, and vehicle information including the travelable range and, if necessary, the charging time is transmitted to the outside.

  The control unit 32 of the vehicle information display device 3 receives vehicle information including the travelable range recalculated from the navigation device 2 via the communication unit 31 (S409), and displays the received vehicle information on the display device 6. (S410), and the process returns to S403.

  If the start of destination input is not selected in S406, the control unit 32 determines whether the start of condition input is selected (S411). As shown in FIG. 8, a condition input button 77 is displayed on the travelable range display screen of the display device 6. When the condition input button 77 is selected by the input unit 33 such as a remote controller, the control unit 32. Determines that the start of condition input has been selected.

  When the start of condition input is selected, the travel cost calculation condition is input by the input unit 33 in S412, and the control unit 32 transmits the travel cost calculation condition input to the navigation device 2 via the communication unit 31 ( S413). The navigation device 2 that has received the condition calculates a recommended travel route using the map information, the registered destination, the vehicle position information, and the received travel cost calculation condition, and is the same as the processing from S101 to S108 shown in FIG. In addition, the power cost and the travelable range are calculated, and vehicle information including the travelable range is transmitted to the outside.

  Here, the travel cost calculation conditions input from the input unit 33 are: ON / OFF of air conditioner, ON / OFF of wiper, ON / OFF of light, number of passengers, loading weight, weather, temperature, date, time, day of week, etc. It is. As a method for calculating the travel (electric power) cost using the input conditions, the travel cost calculation unit 23 of the navigation device 2 uses the air conditioner ON / OFF, the wiper ON / OFF, or the light ON / OFF condition. Based on this, there is a method for calculating the travel cost in consideration of the amount of power used. In addition, the travel cost calculation unit 23 determines whether the air conditioner is turned on / off based on the temperature or date, determines whether the wiper is turned on / off based on the weather, and determines whether the light is turned on / off based on the date, day of the week, or time. Then, the travel cost may be calculated in consideration of the amount of power used. Further, the travel cost calculation unit 23 may calculate the travel cost by predicting the output of the battery from the temperature. Further, the travel cost calculation unit 23 assumes that the light is turned off on weekdays based on the date or the day of the week, the light is turned off on the outward trip of the holiday, and the light is turned on on the return trip of the holiday. The travel cost may be calculated. In addition, the travel cost calculation unit 23 may calculate the travel cost in consideration of the traffic jam according to the time, date, or day of the week.

  Returning to FIG. 7, the control unit 32 of the vehicle information display device 3 receives the vehicle information including the travelable range recalculated from the navigation device 2 and, if necessary, the charging time via the communication unit 31 (S414). ), Output to display on the display device 6 (S415), and return to S403. When the end button 75 is selected without selecting the destination selection (S404), destination input (S406) or condition input (S411) by the input unit 33, the vehicle information display device 3 performs the vehicle information display process. The process ends (S416).

  As described above, according to the vehicle information display system shown in the third embodiment of the present invention, the same effect as that of the vehicle information display system shown in the first embodiment can be obtained, and a destination is input by the vehicle information display device 3. Since the travel cost calculation unit 23 of the navigation device 2 calculates the power cost to the input destination, it is possible to know whether or not the user can travel to the place where the user wants to go. Further, according to the vehicle information display system shown in the third embodiment of the present invention, the travel cost calculation condition in which the travel cost calculation condition is input by the vehicle information display device 3 and the travel cost calculation unit 23 of the navigation device 2 is input. Since the travel cost is calculated using, the power cost can be calculated with higher accuracy, and the travelable range can be calculated with higher accuracy.

  In the vehicle information display system according to Embodiment 3 of the present invention, the travel cost calculation unit 23 of the navigation device 2 uses the travel cost calculation condition input by the input unit 33 of the vehicle information display device 3, Although the travel cost is calculated, the navigation device 2 or the vehicle information display device 3 automatically acquires a travel cost calculation condition such as road conditions such as traffic jam information or weather information via the Internet or the like. The travel cost condition acquisition unit may transmit the travel cost calculation condition to the travel cost calculation unit. The travel cost calculation unit 23 of the navigation device 2 may calculate the travel cost using the received travel cost calculation condition. Thus, since the user does not need to input the travel cost calculation condition, the power cost can be calculated easily and more accurately, and the travelable range can be calculated more accurately.

  In the vehicle information display system according to Embodiment 3 of the present invention, the travel cost calculation unit 23 of the navigation device 2 is the travel cost calculation condition input by the input unit 33 of the vehicle information display device 3. Alternatively, the traveling cost is calculated using the loaded weight, but the electric vehicle 1 is provided with a measuring device that measures the number of passengers or the loaded weight, and the traveling cost calculating unit 23 uses the measured number of passengers or the loaded weight to determine the traveling cost. May be calculated. This eliminates the need for the user to input the number of passengers or the loaded weight, which is the travel cost calculation condition, so that the travel cost can be calculated easily and more accurately, and the travelable range can be calculated more accurately. it can.

  Further, in the vehicle information display system according to the third embodiment of the present invention, the travel cost calculation unit 23 is input by the user in addition to the map information, the vehicle position information, the registered destination, etc., shown in the first embodiment. The recommended travel route is calculated using the destination or travel cost calculation condition, and the power cost is calculated from the calculated recommended travel route. However, as shown in the second embodiment, the map information and the vehicle position information In addition to the registered destination or the learning destination and the learning travel pattern, the power cost may be calculated in consideration of the destination input by the user or the travel cost calculation conditions.

  In the above-described embodiment, the case where the power cost is minimized has been described. However, when the user inputs “time priority” when inputting the above-described conditions, the route with the minimum link cost is calculated as the recommended travel route. In addition, when the user selects “Shortest distance”, the route with the shortest total link length is calculated as the recommended travel route, and when the user selects “Minimum toll”, the condition is satisfied. The route can also be calculated as a recommended travel route. Then, the total power consumption required for the calculated recommended travel route may be converted as a power cost.

  On the other hand, when the user selects “eco-driving”, a recommended travel route may be calculated that minimizes the power cost required to travel to the destination.

  FIG. 9 is a block diagram showing another configuration of the vehicle information display system according to Embodiment 3 of the present invention.

  As shown in FIG. 9, in the vehicle information display system according to Embodiment 3 of the present invention, the navigation device 2 includes a driver identification unit 28 that identifies a driver, and learns a driving pattern for each driver. May be stored in the storage unit 21. When the driver is input as a travel cost calculation condition by the input unit 33 of the vehicle information display device 3, the travel cost calculation unit 23 of the navigation device 2 calculates the power cost using the learned travel pattern for each driver. can do. As a result, the power cost can be calculated more accurately for each driver, and the travelable range can be calculated more accurately.

  FIG. 10 is a block diagram showing another configuration of the vehicle information display system according to Embodiment 3 of the present invention.

  As shown in FIG. 10, the vehicle information display device 3 of the vehicle information display system according to Embodiment 3 of the present invention includes a travel cost calculation unit 34 having the same function as the travel cost calculation unit 23 of the navigation device 2, and The travelable range calculation unit 35 having the same function as the travelable range calculation unit 25 of the navigation device 2 may be provided. In the vehicle information display system shown in FIG. 10, the remaining power amount is received as the vehicle information received in S 401, and the travel cost calculation condition is input by the input unit 33 of the vehicle information display device 3. The vehicle information display device 3 itself calculates the power cost and the travelable range without transmitting the travel cost calculation condition to the navigation device 2. Thereby, the vehicle information display device 3 does not need to communicate with the navigation device 2 again, and can easily and accurately calculate the power cost.

Embodiment 4 FIG.
In the vehicle information display system shown in the fourth embodiment, the vehicle information display device 3 has a function in which the communication unit 31 transmits a signal to the charger, and a charging start signal is input by the input unit 33. Then, a charging start signal is transmitted to the charger. Other configurations and functions are the same as those of the vehicle information display system shown in the first embodiment. Below, it demonstrates centering on a different point from Embodiment 1. FIG.

  FIG. 11 is a flowchart showing the operation of the vehicle information display device of the vehicle information display system according to Embodiment 4 of the present invention.

  The operation from the vehicle information reception in S501 of the vehicle information display device 3 shown in FIG. 11 to the charging time display in S505 is the operation from the reception of vehicle information in S201 to the charging time display in S205 of the vehicle information display device 3 shown in FIG. It is the same.

  The control unit 32 of the vehicle information display device 3 determines whether or not a charging start signal is input by the input unit 33 (S506). When the charge start signal is input, the control unit 32 transmits the charge start signal to the charger connected to the battery of the electric vehicle 1 via the communication unit 31 (S507), and the process ends.

  As described above, according to the vehicle information display system according to the fourth embodiment of the present invention, the same effect as the vehicle information display system shown in the first embodiment can be obtained, and the communication unit 31 of the vehicle information display device 3 can be charged. It has a function of transmitting a signal to the charger, and when the charging start signal is input by the input unit 33, the charging start signal is transmitted to the charger, so that the user charges the electric vehicle without going to the garage. be able to.

  In addition, after charging is completed, the charging end signal is transmitted from the charger to the vehicle information display device 3, and the control unit 32 that has received the charging end signal via the communication unit 31 of the vehicle information display device 3 has completed charging. May be output by displaying on the display device 6 or by outputting a melody or voice. Then, the user can know that the charging of the electric vehicle 1 is completed without going to the garage. Further, if the travelable range is recalculated upon completion of charging, the user can know the more accurate travelable range before departure.

  Of course, the vehicle information display system according to Embodiment 4 of the present invention may be implemented in combination with the vehicle information display system shown in Embodiments 2 and 3.

  DESCRIPTION OF SYMBOLS 1 Electric vehicle, 2 Navigation apparatus, 3 Vehicle information display apparatus, 4 GPS antenna, 5 Battery, 6 Display apparatus, 21 Storage part, 22 Own vehicle position information acquisition part, 23 Travel cost calculation part, 24 Residual electric energy acquisition part, 25 driving range calculation unit, 26 communication unit, 27 vehicle information storage unit, 28 driver identification unit, 31 communication unit, 32 control unit, 33 input unit, 34 driving cost calculation unit, 35 driving range calculation unit.

Claims (3)

A navigation device mounted on an electric vehicle, which stores a map information and a destination,
A vehicle position information acquisition unit for acquiring the vehicle position information;
A remaining power acquisition unit for acquiring the remaining power;
A travel cost calculation unit that calculates an electric power cost based on the map information, the destination, and the vehicle position information;
A travelable range calculation unit that calculates a travelable range based on the power cost and the remaining power amount; and
A communication unit that transmits vehicle information including the travelable range to the outside,
The vehicle information transmitted from the communication unit is received by a vehicle information display device existing outside the electric vehicle and output to a display device possessed by a vehicle user, and the vehicle information Is displayed so as to be visible to a vehicle user who is not on the electric vehicle because the display device exists outside the electric vehicle.
The travel cost calculation unit calculates a travel cost using a travel cost condition when calculating a travel cost received from the outside.   The navigation apparatus according to claim 1, wherein the vehicle information display device outputs the vehicle information so as to classify and display the travelable range on a list or a map.   The navigation device according to claim 1 or 2, wherein the display device is a television, a personal computer, or a mobile phone.

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