DE112010006109B3 - Vehicle information display system and vehicle information control devices and methods therefor - Google Patents

Abstract

A vehicle information display system comprising a first device (2) mounted on an electric vehicle (1) and a second device (3) located outside of the electric vehicle (1), the first device (2) comprising: a remaining power belt Acquisition section (24) that determines a remaining amount of energy of a battery (5) of the electric vehicle (1); a first travel range calculating section (25) that determines a first travel range based on the remaining amount of energy, a position of the electric vehicle (1), map information and calculates a travel expense calculation condition including ON / OFF of an air conditioner of the electric vehicle (1); anda first communication section (26) which outputs the remaining amount of energy to the second device (3); and wherein the second device (3) comprises: a second communication section (31) that receives the remaining amount of energy from the first communication section (26); a second travel range calculating section (35) that derives a second travel range based on a remaining energy amount, a position of the electric Vehicle (1), map information and a travel expense calculation condition including ON / OFF of an air conditioner of the electric vehicle (1); anda control section (32) that controls that vehicle information including the second travel range is output to a display device (6) located outside of the electric vehicle and not physically connected to the electric vehicle; the second travel range on the Display device (6) is displayed in such a way that it is visible to a vehicle user when the vehicle user is not driving in the electric vehicle (1).

Description

TECHNICAL AREA

The present invention relates to a navigation device that calculates a travel range based on a remaining amount of energy of an electric vehicle, a vehicle information display device that displays the travel range, and a vehicle information display system.

BACKGROUND TECHNOLOGY

In recent years, studies have been made on a navigation device that is mounted in an electric vehicle and displays a possible travel distance in consideration of a remaining amount of energy (see, for example JP 9-119839 A ).

EP 1 275 936 B1 discloses a vehicle information system which, based on a vehicle position and a travel destination, takes into account consumption information, determines a remaining amount of energy for the vehicle and calculates a route as a function of the remaining amount of energy. EP 1 602 897 A1 describes a driver information system that is operated by means of a mobile computer to which a user interface is transmitted in a learning mode via a communication connection, whereupon the mobile computer simulates the user interface of the driver information system.

DE 10 2008 039 907 A1 discloses a vehicle with an electrical energy store, an energy source with a generator for charging the energy store and an activation device for the energy source. A starting device with a control element is used to initiate the activation device, which happens in particular wirelessly. The starting device includes a display element for displaying the energy currently available in the electrical energy store, which is displayed to the driver as kilometers that can still be driven.

DE 10 2010 000 387 A1 describes an electric vehicle with a battery that can be charged at a charging station. During a charging process, information is transmitted via a communication device to a terminal which enables remote monitoring of the charging process with regard to the charging time and the amount charged.

DE 102 56 355 A1 discloses a vehicle-mounted vehicle navigation device that transmits a remotely input command from a mobile device (PDA) and that interprets the transmitted command to generate display data that is transmitted to the mobile device.

DE 10 2009 038 431 A1 describes a method for operating an electric or hybrid vehicle in which a user sets a planned departure time and a charging process of the vehicle battery is automatically controlled as a function of the departure time. The user is shown the charge status and / or the remaining range on a mobile device.

DISCLOSURE OF THE INVENTION

TASKS TO BE SOLVED BY THE INVENTION

In the known devices, the remaining range is usually determined taking into account the energy consumption of the electric drive.

It is an object of the present invention to provide a navigation device, a vehicle information display device and a vehicle information display system that provide a more accurate indication of the remaining range.

MEANS TO SOLVE THE TASKS

This object is achieved by a vehicle information display system according to claim 1, a vehicle information control device according to claim 4 or claim 7, a vehicle information display method according to claim 8 and vehicle information control method according to claim 9 or 10. Advantageous embodiments result from the dependent claims.

EFFECTS OF THE INVENTION

The present invention enables a user to more accurately recognize a travel range even when the user is not driving an electric vehicle.

Figure list

• 1 Fig. 13 is a block diagram showing a configuration of a vehicle information display system according to an embodiment 1 of the present invention shows.
• 2 Fig. 13 is a flowchart showing an operation of a navigation device of the vehicle information display system according to the embodiment 1 of the present invention shows.
• 3 Fig. 13 is a flowchart showing an operation of a vehicle information display device of the vehicle information display system according to the embodiment 1 of the present invention shows.
• 4th FIG. 13 is a diagram showing an exemplary display of vehicle information in the vehicle information display system according to the embodiment 1 of the present invention shows.
• 5 Fig. 13 is a diagram showing another exemplary display of vehicle information in the vehicle information display system according to the embodiment 1 of the present invention shows.
• 6th FIG. 13 is a flowchart showing an operation of a navigation device of a vehicle information display system according to an embodiment 2 of the present invention shows.
• 7th 13 is a flowchart showing an operation of a vehicle information display device of a vehicle information display system according to an embodiment 3 of the present invention shows.
• 8th FIG. 13 is a diagram showing an exemplary display of vehicle information in the vehicle information display system according to the embodiment 3 of the present invention shows.
• 9 Fig. 13 is a block diagram showing another configuration of the vehicle information display system according to the embodiment 3 of the present invention shows.
• 10 Fig. 13 is a block diagram showing another configuration of the vehicle information display system according to the embodiment 3 of the present invention shows.
• 11 13 is a flowchart showing an operation of a vehicle information display device of a vehicle information display system according to an embodiment 4th of the present invention shows.

DESCRIPTION OF THE REFERENCE NUMERALS

1

electric vehicle;

2

Navigation device;

3

Vehicle information display device;

4th

GPS antenna;

5

Battery;

6th

Display device;

21st

Memory section;

22nd

Own-vehicle-position information acquisition section;

23

Travel expense calculation section;

24

Residual energy acquisition section;

25th

Travel range calculating section;

26th

Communication section;

27

Vehicle information storage section;

28

Driver identification section;

31

Communication section;

32

Tax section;

33

Input section;

34

Travel expense calculation section;

35

Travel range calculation section.

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1

1 Fig. 13 is a block diagram showing a configuration of a vehicle information display system according to an embodiment 1 of the present invention shows. In the drawings, parts designated by the same reference numerals are identical or equivalent to one another, and this applies to the entire description.

As in 1 shown includes the vehicle information display system according to the embodiment 1 of the present invention in / on an electric vehicle 1 attached navigation device 2 and one outside of the electric vehicle 1 installed vehicle information display device 3 .

The electric vehicle 1 contains the navigation device 2 for guiding or steering a travel route from a position of one's own vehicle (or one's own vehicle position) to a destination, a battery 5 for storing energy and a GPS (Global Positioning System) antenna 4th for receiving a radio wave transmitted from a satellite.

The navigation device 2 contains a memory section 21st , a own-vehicle-position information acquisition section 22nd and a travel expense calculating section 23 . The memory section 21st stores map information, a destination with a registered destination preliminarily registered by a user, and attached information with speed information such as a speed limit and a peak time average speed. Own-vehicle-position information acquisition section 22nd receives a Own-vehicle position information based on a GPS signal received from the GPS antenna 4th has been received on the electric vehicle 1 is appropriate. The travel expense calculation section 23 calculates a recommended travel route in consideration of travel costs (which will be described later) required to travel from the own vehicle position to the destination based on the own vehicle position information acquisition section 22nd obtained position-of-own-vehicle information and the map information and destination stored in the storage section 21st are stored. The travel expense calculation section 23 calculates energy costs required to travel from the own vehicle position to the destination or to make a round trip between the own vehicle position and the destination through this recommended travel route. The map information includes road information, geographic information, facility information, or the like. The road information is indicated by a node representing a place and a link connecting the nodes to each other. The geographical information includes altitude information of the location, gradient information of the connection and the like. The facility information indicates the position and the like of a facility serving as a destination. Here, the travel cost necessary for the trip is called a connection cost obtained by adding, for example, various information including a traffic jam time and the like as the attached information on the length, road width and road type (such as highway, non-highway or expressway) of each connection obtained from the map information.

In general, the travel expense calculating section calculates accordingly 23 as the recommended travel route which is a so-called guide route, such a route that the total connection cost connecting the current location to the destination is the lowest.

Then the travel expense calculation section converts 23 converts the connection costs into energy costs and calculates the energy costs, ie the energy consumption required to travel the recommended travel route.

Instead, it is also conceivable, as the travel costs of each connection, to calculate not the connection costs but energy costs, which represent energy to be consumed to travel the connection. In this case, such a route that the total energy cost is the lowest is guided as the recommended travel route. That is, in this case, such a route is guided that the energy consumption is the smallest (a route suitable for economical driving).

Alternatively, as the travel cost of each link, the link cost and the energy cost, which is the energy consumption required to travel the link, can both be calculated. This can save the trouble of converting the connection cost to the energy cost.

Then, in the following description, for the convenience of description, the travel cost will be considered as a broader concept that includes the connection cost and the energy cost both. The concept for calculating also includes a simple read-out of a stored value.

The navigation device 2 further includes a remaining energy amount acquisition section 24 and a travel range calculating section 25th . The residual energy acquisition section 24 receives a residual amount of energy from the battery 5 that are in / on the electric vehicle 1 is appropriate. The travel range calculation section 25th calculates a possible travel distance for each destination based on the travel cost calculation section 23 calculated energy costs and the amount of remaining energy. Aggregation of more than one of the results of the calculation of the possible travel distance for each destination means a travel range of the electric vehicle. The travel range calculation section 25th creates vehicle information including the calculated travel range and a charging time, and stores the vehicle information in a vehicle information storage section 27 and also transmits the vehicle information to a communication section 26th . The navigation device 2 also includes a communication section 26th for transmitting and receiving information to and from the vehicle information display device 3 . It is sufficient that the travel range contains a possible travel distance for at least one destination.

The memory section 21st is composed of a recording medium such as an HDD (Hard Disk Drive) device, a DVD (Digital Versatile Disk) or a CD (Compact Disk), and a drive device for driving the recording medium. The vehicle information storage section 27 that stores the vehicle information is composed of a rewritable storage element such as an HDD. In a case where the memory section 21st is formed from a rewritable storage element such as an HDD, the storage section 21st also as the vehicle information storage section 27 serve. Own-vehicle-position information acquisition section 22nd , the travel expense calculation section 23 , the residual energy acquisition section 24 and the travel range calculating section 25th are controlled by a program process using a CPU (Central Processing Unit).

The vehicle information display device 3 contains a communication section 31 for transmitting and receiving information to and from the navigation device 2 , a control section 32 for outputting to a display device 6th , the vehicle information that the communication section 31 from the navigation device 2 has received, and an input section 33 formed by a remote controller, a mouse, a keyboard or the like. The display device 6th displays the output vehicle information and can either be outside or inside the vehicle information display device 3 be provided as long as they are outside the electric vehicle 1 is. The outside of the vehicle information display device 3 provided display device 6th can for example be a display of a TV, a personal computer or a cell phone. The tax section 32 is controlled by a program process using a CPU (Central Processing Unit).

Even though 1 shows an exemplary embodiment in which the communication device 26th for transmitting the vehicle information to the vehicle information display device 3 within the navigation device 2 is provided, the communication device 26th outside the navigation device 2 be provided. In such a case, the communication section 26th the navigation device 2 a communication device external to the navigation device 2 and within the electric vehicle 1 is provided. In the same way, the communication device 31 for receiving the vehicle information from the navigation device 2 outside the vehicle information display device 3 be provided. The point is that the communication section 26th or the communication section 31 can be installed in any place as long as they can communicate required information. For example, a cellular phone can be used as the one outside the vehicle information display device 3 communication section provided 31 are listed. A connection between each device and the communication device can be a wired connection or a wireless connection. It is also acceptable that the communication device is placed on a support part with a connector provided in each device.

The communication between the navigation device 2 and the vehicle information display device 3 may be wireless communication or may be wired communication implemented by connecting the electric vehicle 1 with a connector while the electric vehicle 1 is parked in a garage. Because the electric vehicle 1 Connected to a charger when it is parked in a garage, communication can be wired to the navigation device 2 and the vehicle information display device 3 be realized with each other via the charger. In addition, the communication section 26th the navigation device 2 or those outside the navigation device 2 The communication device provided can be equipped with a function of connecting to the Internet, such as a wireless LAN, and can be connected to the vehicle information display device via the Internet 3 that is installed in a home communicate with a manufacturer of the vehicle or a manufacturer of the navigation system. At this time, a personal computer or a cellular phone can be used as the display device 6th be used. Further, the vehicle information can be stored in a portable storage medium such as a USB memory for communication between the navigation device 2 and the vehicle information display device 3 be saved. Here, a memory function can be attached to an engine key, a mobile phone or the like, which can thereby be carried around.

2 Fig. 13 is a flowchart showing an operation of the navigation device of the vehicle information display system according to the embodiment 1 of the present invention shows.

As in 2 As shown, at a time of arrival at the home or at a time of key-off, the navigation device starts 2 a travel range calculation process ( S101 ). First, the own-vehicle-position gets information acquisition section 22nd the navigation device 2 own-vehicle-position information from the GPS antenna 4th , and the remaining energy amount acquisition section 24 receives the remaining amount of energy ( S102 ).

Then the travel expense calculating section calculates 23 the recommended travel route using the own-vehicle-position information acquisition section 22nd obtained own-vehicle-position information and the map information and the registered destination stored in the storage section 21st are stored. Based on this calculated recommended travel route, the energy costs for each destination are calculated, and the Calculated energy costs are sent to the travel range calculation section 25th transmitted (S103). In a case where the recommended travel route is in the memory section 21st is stored, it is sufficient that the travel expense calculation section 23 the travel expenses are calculated using the saved recommended travel route without calculating the recommended travel route.

The travel range calculation section 25th the navigation device 2 calculates the possible travel distance for each destination based on the remaining energy acquisition section 24 remaining amount of energy received and that by the travel expense calculation section 23 calculated energy costs. Then the travel range calculating section classifies 25th a state in any of the three stages of (1) being able to tour, (2) being able to arrive at the destination but not being able to return from the destination to the current location (not being able to tour), and (3) Incapacity to arrive at the destination, and calculates the travel range ( S104 ). In a case where, for example, the travel expense calculating section 23 The travel range calculating section classifies energy costs for a one-way trip from the own vehicle position to the destination 25th as follows. That is, when the remaining amount of energy is equal to or more than twice the energy cost, the state is classified as (1) being able to travel around. If the remaining amount of energy is equal to or more than the energy cost required to travel from the own vehicle position to the destination and less than twice the energy cost required to travel from the own vehicle position to the destination, the state is classified as (2 ) Being able to arrive at the destination but not being able to take a tour. When the remaining amount of energy is less than the energy cost required to travel from the own vehicle position to the destination, the condition is classified as (3) incapacity to arrive at the destination. In a case where the travel expense calculating section 23 One-way energy cost and return energy cost are both calculated taking the slope into account, the state is classified as any one of the above-mentioned three levels (1) to (3) based on the calculated energy cost for the round-trip journeys. In a case where the travel range calculating section 25th determines that a round trip between the own vehicle position and the destination is not possible based on the energy cost and the remaining amount of energy calculated by the travel range calculation section 25th a charging time required for a tour. Then the travel range calculating section creates 25th the vehicle information including the travel range and the charging time, and stores the vehicle information in the vehicle information storage section 27 and also transmits the vehicle information to the communication section 26th ( S105 ).

The communication section 26th the navigation device 2 receives the vehicle information and then determines whether or not communication with / to the outside is enabled ( S106 ). When communication with / to the outside is enabled, the communication section transmits 26th the vehicle information ( S107 ), and then the process ends ( S108 ). When the communication with / to the outside is not enabled, the communication section ends 26th the process without any further action ( S108 ).

In the above description, here, in a case where, the travel range calculating section calculates 25th determines that a round trip between the own vehicle position and the destination is not enabled based on the energy cost and the remaining amount of energy, the travel range calculation section 25th the charging time required for a round trip. However, it is also acceptable that in a case where the travel range calculating section 25th determines that arrival at the destination is not allowed based on the energy cost and the remaining energy amount, the travel range calculating section 25th calculates a loading time required for an arrival at the destination or a loading time required for a round trip to the destination.

3 Fig. 13 is a flowchart showing an operation of the vehicle information display device of the vehicle information display system according to the embodiment 1 of the present invention shows.

As in 3 as shown, the communication section receives 31 the vehicle information display device 3 the vehicle information from the navigation device 2 ( S201 ). Then, upon receipt of a start signal input from a user through a remote controller or the like, the vehicle information display device starts 3 a vehicle information display process ( S202 ). The tax section 32 the vehicle information display device 3 indicates to the display device 6th one through the communication section 31 received vehicle information. The display device 6th shows the vehicle information ( S203 ).

Here is an exemplary display of the vehicle information on the display device 6th to be shown.

4th Fig. 13 is a diagram showing an exemplary display of vehicle information in the vehicle information display system according to the embodiment 1 of the present invention shows.

In 4th shows the display device 6th a list of destinations in terms of each travel range classification. The tax section 32 makes the output to the display device 6th to display different travel range classifications in different display ways, for example by adding colors or highlighting. In 4th "Supermarket A" 71 and "B Elementary School" 72 (1) are the destinations to which a tour is possible. The “C Market” 73 is (2) the destination to which an arrival is permitted but a tour is not permitted. “D Station” 74 is (3) the destination to which arrival is not permitted.

5 Fig. 13 is a diagram showing another exemplary display of vehicle information in the vehicle information display system according to the embodiment 1 of the present invention shows.

In 5 shows the display device 6th Destinations on a map with different markings for different travel range classifications. Here, similar to the case of the list display, the control section does 32 an output to the display device 6th to show different travel range classifications in different display ways, for example by changing the color, shape and letter of the marker. In 5 the travel range for each destination is indicated as a mark with different shapes depending on classifications. The circle indicates (1) the destination to which a tour is possible. The square indicates (2) the destination to which an arrival is permitted but a tour is not permitted. The triangle indicates (3) the destination to which arrival is not allowed. In 5 (A) to (C) are (1) the destinations to which a tour is allowed, (D) and (E) (2) the destinations to which an arrival is allowed but a tour is not allowed, and (F ) and (H) (3) the destinations to which arrival is not permitted.

Looking again at 3 determines the control section 32 the vehicle information display device 3 whether or not any is currently on the display 6th displayed destination is selected ( S204 ). If any destination through the input section 33 is selected, the control section operates 32 an output to the display device 6th to display a charging time required for arriving at the destination or a charging time required for making a round trip to the destination, and thus the display device shows 6th the loading time at ( S205 ). After displaying the charging time, the display device returns 6th back to the vehicle information display ( S203 ). If no destination through the input section 33 is selected and one in 4th or 5 end button shown 75 is selected, the vehicle information display device ends 3 the vehicle information display process ( S206 ).

As described above, in the vehicle information display system according to the embodiment 1 According to the present invention, the user can recognize a travel range even when the user is not in the electric vehicle 1 drives, i.e. even if, for example, the user is home before departure. In addition, the user can know the charging time required to arrive at the destination or the charging time required to make a round trip to the destination. This enables the user to take a carefree departure. In addition, the user can start charging early before departure, which can reduce the occurrence of a situation where after driving the electric vehicle 1 the user finds the remaining amount of energy to be insufficient and the departure is delayed due to the need for charging. In addition, there is no need to repeat charging, which is not essential for every day. Only when the remaining amount of energy is insufficient is a required amount of energy charged. This can reduce the number of charge / discharge cycles per a certain period of time, and can also reduce the occurrence of a situation where the shortage of the remaining amount of energy is detected immediately before departure, so that rapid charging must be performed. Thus, an effect can be brought out that the life of the battery 5 increases.

In the vehicle information display system according to the embodiment 1 of the present invention computes the navigation device 2 the energy costs and the travel range. Instead of this, it can also be possible that the navigation device 2 the energy cost is calculated and the remaining energy amount, the destination and the energy cost to the vehicle information display device 3 transmits so that the control section 32 the vehicle information display device 3 who received the remaining amount of energy, the destination and the energy costs, the travel range calculated. For example, in a case where a travel range from the home is calculated every time, the energy cost for each destination is unchanged when the position of the own vehicle is fixed. Therefore, the second time and subsequent times, the travel range can be calculated by only taking the remaining amount of energy from the navigation device 2 to the vehicle information display device 3 is transmitted. Therefore, the in the navigation device 2 processing carried out can be reduced and the use of the battery 5 of the electric vehicle 1 can be reduced.

Embodiment 2

In the vehicle information display system according to the embodiment 1 calculates the navigation device 2 the recommended travel route by using the own vehicle position information, map information, registered destination and the like, and calculates the energy cost required for the recommended travel route thus calculated. In a vehicle information display system according to this embodiment 2 calculates the navigation device 2 the energy cost using the own-vehicle-position information, map information, a learned destination and a learned travel pattern. The other parts of the configuration and the other functions are the same as those of the vehicle information display system according to the embodiment 1 . Here, the following are mainly those of the embodiment 1 different points are described.

The memory section 21st the navigation device 2 contains not only the map information and the destination with the registered destination preliminarily registered by the user, but also a learned destination and a learned travel pattern. The learned destination is a place previously set as the destination by the user a predetermined number of times or more, or a place previously visited by the user a predetermined number of times or more. The learned travel pattern is obtained by learning a previous travel pattern (the travel route and the speed information). The memory section 21st can store a learned travel pattern containing the recommended travel route from a specific parking position such as home to the registered destination and speed information. The travel expense calculation section 23 the navigation device 2 calculates the recommended travel route based on the own-vehicle position information, the map information, and the registered or learned destination information, etc., or calculates the energy cost by using the stored learned travel pattern. If there is no learned travel pattern in the memory section 21st is stored, the travel expense calculating section calculates 23 the recommended travel route using the own-vehicle position information, the map information and the registered or learned destination information, etc., and then calculates the energy cost based on the recommended travel route thus calculated. The learned travel pattern is created by using the own-vehicle-position information acquisition section 22nd own vehicle position obtained and the speed information obtained by a speed information acquisition section, which is not shown, and is stored in the storage section 21st saved.

6th Fig. 13 is a flowchart showing an operation of a navigation device of a vehicle information display system according to the embodiment 2 of the present invention shows.

As in 6th As shown, at a time of arrival at home or a time of key-off, the navigation device starts up 2 a travel range calculation process ( S301 ). The travel expense calculation section 23 the navigation device 2 receives own-vehicle-position information given by the GPS antenna 4th by the own-vehicle-position information acquisition section 22nd has been obtained, and a destination defined by the registered or learned destination stored in the storage section 21st has been saved ( S302 ).

Then the travel expense calculating section determines 23 whether or not any learned pattern in the memory section 21st is saved ( S303 ). When any learned travel pattern is stored, the travel expense calculating section calculates 23 the energy costs for each destination using the map information, the own vehicle position information, the registered or learned destination and the stored learned travel pattern ( S304 ). If no learned travel pattern is stored, the travel expense calculating section calculates 23 the recommended travel route using the map information, own-vehicle-position information, registered or learned destination information, etc., and the attached information, and then calculates the energy cost for each destination based on the recommended travel route thus calculated ( S305 ). The travel expense Calculation section 23 transmits the calculated energy cost to the travel range calculation section 25th .

The operations in S306 to S310 of the navigation device 2 that are subsequent to the calculation of the energy cost are the same as the operations in S104 through S108 the navigation device 2 according to the embodiment 1 .

In the vehicle information display device 3 that the vehicle information from the navigation device 2 has received makes, similar to the embodiment 1 , the tax section 32 an output to the display device 6th to display the registered or learned destination according to each travel range classification, and thus the display device shows 6th the registered or learned destination according to each travel range classification.

As described above, calculated in the vehicle information display system according to the embodiment 2 of the present invention the navigation device 2 the travel range by using, as the destination, the learned destination that is a place previously set as the destination by the user a predetermined number of times or more, or a place previously set by the user a predetermined number of times or more has been visited, and the control section 32 the vehicle information display device 3 makes an output to the display device 6th to display the registered or learned destination according to each travel range classification. Therefore, even if the destination has not been preliminarily registered, the user can easily know whether or not travel to the destination he / she visits frequently is enabled and whether or not charging is required without getting in the electric vehicle 1 to drive. As the navigation device 2 In addition, if the energy cost is calculated using the learned travel pattern obtained by learning the previous travel pattern, the travel range can be calculated according to driving characteristics of the user, enabling the travel range to be calculated with an improved accuracy.

The output of the control section 32 the vehicle information display device 3 can be such that when the display device 6th displays the registered or learned destination according to each travel range classification, a frequently visited destination is displayed in an upper portion. This enables the user to easily know whether or not travel to the more frequently visited destination is enabled and whether or not charging is required.

Embodiment 3

In the vehicle information display system according to the embodiment 1 calculates the navigation device 2 the recommended travel route using the map information, the own-vehicle position information, the registered destination information, etc., the attached information and the like, and then calculates the energy cost based on the recommended travel route thus calculated. In this embodiment 3 gives the input section 33 to the vehicle information display device 3 a travel expense calculation condition which is a condition in calculating the destination or the travel expense. The navigation device 2 calculates the recommended travel route using not only the map information, the own-vehicle position information and the registered destination but also the destination or the travel cost calculation condition input by the user, and then calculates the energy cost based on the thus calculated recommended travel route. The other parts of the configuration and the other functions are the same as those of the vehicle information display system according to the embodiment 1 . Here, the following are mainly those of the embodiment 1 different points are described.

The operations of the navigation device 2 that are performed at a time of arrival at home or at a time of key-off are the same as those of S101 to S108 , in the 2 are shown. Next is an operation of the vehicle information display device 3 to be discribed.

7th Fig. 13 is a flowchart showing an operation of a vehicle information display device of a vehicle information display system according to the embodiment 3 of the present invention shows. 8th Fig. 13 is a diagram showing an exemplary display of vehicle information in the vehicle information display system according to the embodiment 2 of the present invention shows. Here shows 8 (a) an example in which the vehicle information is displayed in the form of a list, and 8 (b) shows an example in which the vehicle information is displayed as markings on the map. In 8 (a) and 8 (b) are added to the in 4th and 5 a destination input button and a condition input button are displayed.

Operations of the vehicle information display device 3 from receiving the vehicle information in S401 until the charging time is displayed in S405 , in 7th shown are the same as the operation the vehicle information display device 3 from receiving the vehicle information in S201 until the charging time is displayed in S205 , in 3 shown. In the vehicle information display device 3 according to the embodiment 3 determined if the currently displayed destination is not in S404 of 7th is / is selected, the control section 32 whether or not the start of a destination entry is selected ( S406 ).

As in 8th is shown a destination input button 76 on a travel range display screen of the display device 6th displayed. In a case where the destination input button 76 through the input section 33 is selected which is realized as a remote controller or the like, the control section determines 32 that the start of destination entry is selected.

When the start of destination input is selected, the destination is entered through the input section 33 entered ( S407 ), and the control section 32 transmits the entered destination to the navigation device 2 through the communication section 31 ( S408 ). The navigation device 2 receives the destination, and then calculates the recommended travel route using the received destination, map information, own vehicle position, and the like. Similar to processing in S101 to S108 of 2 calculates the navigation device 2 the travel range based on energy costs, and transmits the vehicle information with the travel range and, if necessary, the charging time to the outside.

The tax section 32 the vehicle information display device 3 receives the vehicle information with the recalculated travel range from the navigation device 2 through the communication section 31 ( S409 ) and makes an output to the display device 6th to display the received vehicle information ( S410 ). Then the process returns to S403.

When destination entry start is not selected in S406 determined by the control section 32 whether or not the start of a condition input is / is selected ( S411 ). As in 8th is shown, the condition input button is displayed 77 on the travel range display screen of the display device 6th displayed. In a case where the condition input button 77 through the input section 33 is selected which is realized as a remote controller or the like, the control section determines 32 that the start of condition input is selected.

If the start of condition input is selected, then in S412 the input section 33 the travel expense calculation condition, and the tax section 32 transmits the inputted travel expense calculation condition to the navigation device 2 through the communication section 31 (S413). The navigation device 2 receives the condition and then calculates the recommended travel route using the map information, the registered destination, the own vehicle position information, and the received travel expense calculation condition. Similar to processing in S101 to S108 of 2 calculates the navigation device 2 the energy costs and the travel range and transmits the vehicle information with the travel range to the outside.

Here's the one through the input section 33 input travel cost calculation condition, for example, ON / OFF of an air conditioner, ON / OFF of a windshield wiper, ON / OFF of a light, the number of passengers, the load weight, the weather, the air temperature, the date, the time or a day of the week. As a method of calculating the travel (energy) cost by using the inputted condition, there can be cited a method in which the travel cost calculating section 23 the navigation device 2 the travel cost is calculated taking into account the amount of energy to be used based on the condition of ON / OFF the air conditioner, ON / OFF the wiper, or ON / OFF the light. The travel expense calculation section 23 can also calculate the travel cost in consideration of the amount of energy to be used during determination of ON / OFF of the air conditioner depending on the air temperature or the date, determination of ON / OFF of the wiper depending on the weather, or determination of ON / OFF of the Light depending on the date, a day of the week or the time. The travel expense calculation section 23 can also calculate the travel cost while predicting an output (power) of the battery based on the air temperature. For example, the travel expense calculation section 23 calculate the travel cost during a determination based on the date or day of the week that the light is OFF on weekdays, the light is OFF on an outward journey on vacation, and the light is ON on a return journey on vacation. The travel expense calculation section 23 can also calculate travel expenses based on time, date or day of the week, taking into account traffic jams.

The tax section 32 - considering again 7th the vehicle information display device 3 receives the Vehicle information with the recalculated travel range and, as required, the loading time from the navigation device 2 through the communication section 31 ( S414 ) and makes an output to the display device 6th to display the vehicle information ( S415 ). Then the process returns to S403. When the input section 33 not the destination selection ( S404 ), the destination entry ( S406 ) or the condition input ( S411 ) and select the end button 75 selects, ends the vehicle information display device 3 the vehicle information update process ( S416 ).

As described above, the vehicle information display system according to the embodiment brings 3 of the present invention have the same effects as those of the vehicle information display system according to the embodiment 1 and also enables the user to know whether or not travel to a desired location is enabled because the vehicle information display device 3 Enters the destination and the travel expense calculation section 23 the navigation device 2 calculates the travel expenses necessary to travel to the entered destination. In the vehicle information display system according to the embodiment 3 According to the present invention, the travel expense calculation condition is set in the vehicle information display device 3 entered, and the travel expense calculation section 23 the navigation device 2 calculates the travel expenses using the entered travel expenses calculation condition. Therefore, the energy cost can be calculated with an improved accuracy, and thus the travel range can be calculated with an improved accuracy.

In the vehicle information display system according to the embodiment 3 of the present invention, the travel expense calculating section calculates 23 the navigation device 2 the travel expenses by using the travel expenses calculation condition specified by the input section 33 the vehicle information display device 3 is entered. However, it is also acceptable that a travel expense calculation condition acquisition section which automatically obtains the travel expense calculation condition including, for example, a road condition such as traffic jam information or weather information automatically through the Internet or the like, in the navigation device 2 or the vehicle information display device 3 is provided, and the travel expense condition acquisition section transmits the travel expense calculation condition to the travel expense calculation section. The travel expense calculation section 23 the navigation device 2 can calculate the travel expenses by using the received travel expenses calculation condition. This makes it unnecessary for the user to enter the travel expense calculation condition. Therefore, the energy cost can easily be calculated with a further improved accuracy, and thus the travel range can be calculated with a further improved accuracy.

In the vehicle information display system according to the embodiment 3 of the present invention, the travel expense calculating section calculates 23 the navigation device 2 the travel expense by using the number of passengers or the loading weight as the travel expense calculation condition by the input section 33 the vehicle information display device 3 is entered. Here, it is also acceptable that a measuring device for measuring the number of passengers or the carrying weight in the electric vehicle and the travel cost calculating section are provided 23 the travel expenses are calculated using the number of passengers or the load weight obtained through a measurement. This does not require a user to input the number of passengers or the carrying weight as the travel expense calculation condition. Therefore, the travel cost can easily be calculated with a further improved accuracy, and thus the travel range can be calculated with a further improved accuracy.

In the vehicle information display system according to the embodiment 3 of the present invention, the travel expense calculating section calculates 23 the recommended travel route by using not only the map information, own-vehicle position information, registered destination and the like as in the embodiment 1 but also the destination or the travel cost calculation condition entered by the user, and then calculates the energy cost based on the recommended travel route thus calculated. However, it is also possible, as in 2 illustrates calculating the energy cost by using the destination or the travel cost calculation condition inputted by the user, in addition to the map information, the own vehicle position information, the registered or learned destination and the learned travel pattern.

In the examples described above, a case has been described where the energy cost is the lowest. Instead, a case where the user selects “time priority” at the time of the above-described condition input, such a route as the recommended travel route that the total connection cost may be calculated may be calculated are lowest. In a case where the user selects “Shortest Distance”, such a route can be calculated as the recommended travel route that the total link length is the shortest. In a case where the user selects “Lowest Toll Rate”, such a route that satisfies this condition can be calculated as the recommended travel route. Then the total energy consumption required for this calculated recommended travel route can be converted as the energy costs. On the other hand, in a case where the user selects “economical driving”, such a route that the energy cost required for travel to the destination is the lowest can be calculated as the recommended travel route.

9 Fig. 13 is a block diagram showing another configuration of the vehicle information display system according to the embodiment 3 of the present invention shows.
As in 9 can be shown in the vehicle information display system according to the embodiment 3 of the present invention, a driver identification section 28 for identifying a driver in the navigation device 2 can be provided, and the travel pattern of each driver can be used as the learned travel pattern in the storage section 21st be saved. The input section 33 the vehicle information display device 3 inputs a driver as the travel expense calculation condition, and thereby the travel expense calculation section 23 the navigation device 2 Calculate energy costs using each driver's learned travel pattern. Therefore, the energy cost for each driver can be calculated with a further improved accuracy, and thus the travel range can be calculated with a further improved accuracy.

10 Fig. 13 is a block diagram showing another configuration of the vehicle information display system according to the embodiment 3 of the present invention shows.

As in 10 can be shown in the vehicle information display system according to the embodiment 3 of the present invention is the vehicle information display device 3 a travel expense calculation section 34 with the same function as that of the travel expense calculation section 23 the navigation device 2 , and a travel range calculating section 35 having the same function as that of the travel range calculating section 25th the navigation device 2 contain. In an in 10 The vehicle information display system shown is the remaining amount of energy as that in S401 received vehicle information received, and if the input section 33 the vehicle information display device 3 inputs the travel expense calculation condition, the input travel expense calculation condition is not sent to the navigation device 2 but the vehicle information display device 3 calculates the energy cost and travel range by itself. This does not require the vehicle information display device 3 again with the navigation device 2 must communicate. Therefore, the energy cost can be easily calculated with an improved accuracy.

Embodiment 4

In a vehicle information display system according to this embodiment 4th has in the vehicle information display device 3 the communication section 31 a function of transmitting a signal to a charger, and transmits when a charging start signal thereto through the input section 33 is input, the charging start signal is sent to the charger. The other parts of the configuration and the other functions are the same as those of the vehicle information display system according to the embodiment 1 . The following are those of the embodiment 1 different points are described.

11 Fig. 13 is a flowchart showing an operation of a vehicle information display device of a vehicle information display system according to the embodiment 4th of the present invention shows.
Operations of the vehicle information display device 3 from receiving the vehicle information in S501 to displaying a charging time in S505 , in 11 are the same as the operation of the vehicle information display device 3 from receiving the vehicle information in S201 until a loading time is displayed in S205 , in 3 shown.
The tax section 32 the vehicle information display device 3 determines whether or not the charging start signal through the input section 33 is entered ( S506 ). When the charging start signal is input, the control section transmits 32 through the communication section 31 the charging start signal to the charger connected to the battery of the electric vehicle 1 connected is ( S507 ), and then the process ends.

As described above, in the vehicle information display system according to the embodiment 4th of the present invention have the same effects as those of the vehicle information display system according to the embodiment 1 and also has the communication section 31 the vehicle information display device 3 the function of transmitting the signal to the charger so that when the charging start signal goes there through the input section 33 is entered, the communication section 31 transmits the charging start signal to the charger. This enables the user to charge the electric vehicle without going to a garage.

It is also possible that after charging is completed, the charger sends a charging end signal to the vehicle information display device 3 transmits, and the control section 32 that the charging end signal through the communication section 31 the vehicle information display device 3 has received an output to the display device 6th operates to indicate the completion of loading, or outputs a melody, sound or the like to notify completion of loading. This enables the user to complete the charging of the electric vehicle 1 to be recognized without going to a garage. By recalculating a travel range at a time when charging is completed, the user can know a more accurate travel range before departure. Of course, the vehicle information display system according to the embodiment 4th of the present invention in combination with the vehicle information display systems according to the embodiments 2 and 3 will be realized.

Claims (10)

Vehicle information display system with a first device (2) mounted on an electric vehicle (1), and a second device (3) located outside the electric vehicle (1), wherein the first device (2) comprises: a remaining energy amount acquisition section (24) that determines a remaining energy amount of a battery (5) of the electric vehicle (1); a first travel range calculating section (25) that calculates a first travel range based on the remaining amount of energy, a position of the electric vehicle (1), map information and a travel cost calculation condition including ON / OFF of an air conditioner of the electric vehicle (1); and a first communication section (26) that outputs the remaining amount of energy to the second device (3); and where the second device (3) comprises: a second communication section (31) that receives the remaining amount of energy from the first communication section (26); a second travel range calculating section (35) that calculates a second travel range based on a remaining energy amount, a position of the electric vehicle (1), map information and a travel expense calculation condition including ON / OFF of an air conditioner of the electric vehicle (1); and a control section (32) that controls that vehicle information including the second travel range is output to a display device (6) outside of the electric vehicle and not physically connected to the electric vehicle; wherein the second travel range is displayed on the display device (6) in such a way that it is visible to a vehicle user when the vehicle user is not driving in the electric vehicle (1). Vehicle information display system according to Claim 1 wherein the control section (32) determines whether a charging start signal is inputted and, if the charging start signal is inputted, transmits the charging start signal out of the second device (3). Vehicle information display system according to Claim 2 wherein the second device (3) receives a charging completion signal, and the second device (3) comprises a notification section for notifying completion of charging when the second device (3) receives the charging completion signal. Vehicle information control device that is external to an electric vehicle (1) with a communication section (31) that receives first vehicle information including a remaining amount of energy of a battery (5) of the electric vehicle (1); a travel range calculating section (35) that calculates a travel range based on the remaining energy amount, a position of the electric vehicle, map information, and a travel expense calculation condition including ON / OFF of an air conditioner of the electric vehicle (1); and a control section (32) that controls that second vehicle information including the travel range is output to a display device (6) located outside the electric vehicle (1) and not physically connected to the electric vehicle (1); wherein the travel range is displayed on the display device (6) in such a way that it is visible to a vehicle user when the vehicle user is not driving in the electric vehicle (1). Vehicle information control device according to Claim 4 wherein the control section (32) determines whether or not a charging start signal is inputted and, when the charging start signal is input, transmits the charging start signal out of the vehicle information control device. Vehicle information control device according to Claim 5 wherein the one vehicle information control device receives a charging completion signal, the vehicle information control device includes a notification section for notifying completion of charging when the vehicle information control device receives the charging completion signal. Vehicle information control device mounted on an electric vehicle (1) with a remaining energy amount acquisition section (24) that determines a remaining energy amount of a battery (5) of the electric vehicle (1); a travel range calculating section (25) that calculates a travel range based on the remaining energy amount, a position of the electric vehicle, map information and a travel expense calculation condition including ON / OFF of the air conditioner of the electric vehicle (1); and a communication section (26) that transmits vehicle information including the remaining amount of energy to an external device located outside of the electric vehicle (1); wherein the travel range is calculated based on the amount of remaining energy from the external device located outside the electric vehicle (1) and displayed on a display device (6) so that it is visible to a vehicle user when the vehicle user is not in the electric vehicle (1) drives. A vehicle information display method used in a vehicle information display system comprising a first device (2) mounted on the electric vehicle (1) and a second device (3) located outside the vehicle (1), wherein the vehicle information display method includes: a step of determining a remaining energy amount of a battery of the electric vehicle (1) by a remaining energy amount acquisition section in the first device (2); a step of calculating a first travel range based on the remaining energy amount, a position of the electric vehicle (1), map information, a travel cost calculation condition including ON / OFF of an air conditioner of the electric vehicle (1) by a first travel range calculation section (25 ) in the first device (2); a step of outputting the remaining amount of energy to the second device (3) through a communication section (26) in the first device (2); a step of calculating a second travel range based on the remaining energy amount, a position of the electric vehicle, map information and a travel expense calculation condition including ON / OFF of the air conditioner of the electric vehicle by a second travel range calculation section (35) in the second device ( 3); and a step of performing control such that vehicle information including the second travel range is output to a display device (6) located outside the electric vehicle (1) and physically separated from the electric vehicle (1) from a control section (32) in the second device (3); wherein the second travel range is displayed on the display device (6) in such a way that it is visible to a vehicle user when the vehicle user is not driving in the electric vehicle (1). Vehicle information control method implemented using a device (3) external to an electric vehicle (1) with a step of receiving first vehicle information including a remaining amount of energy of a battery (5) of the electric vehicle (1) by a communication section (31) of the device (3); a step of calculating a travel range based on the remaining amount of energy, a position of the electric vehicle (1), map information and a travel expense calculation condition including ON / OFF of the air conditioner of the electric vehicle (1) by a travel range calculation section of the device; and a step of performing control to the effect that a second vehicle information, which comprises the travel range, is output to a display device (6) located outside the vehicle (1) and physically separated from the electric vehicle (1), by a control section (32) of the device (3); wherein the travel range is displayed on the display device (6) in such a way that it is visible to a vehicle user when the vehicle user is not driving in the electric vehicle (1). A vehicle information control method implemented using a device (2) attached to an electric vehicle (1), comprising a step of determining a remaining amount of energy of a battery of the electric vehicle (1) by a remaining amount of energy acquisition section (24) of the device ( 2); a step of calculating a travel range based on the remaining amount of energy, a position of the electric vehicle (1), map information and a travel expense calculation condition including ON / OFF of the air conditioner of the electric vehicle (1) by a travel range calculation section (25) of FIG Device (2); and a step of transmitting vehicle information including the remaining amount of energy to an external device (3) which is located outside the electric vehicle (1) through a communication section (26) of the apparatus (2); wherein the travel range is calculated on the basis of the remaining amount of energy by the external device (3) located outside the electric vehicle (1) and displayed on the display device (6) that it is visible to a vehicle user when the vehicle user does not run in the electric vehicle (1).

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