JP5810801B2 - Evaluation display system, method and program - Google Patents

Description

  The present invention relates to an evaluation display system, method and program for displaying an evaluation of fuel consumption of a vehicle.

  Conventionally, various techniques for performing display for improving the fuel efficiency of a vehicle have been developed. For example, Patent Document 1 discloses a technique for displaying that the energy consumption amount of the own vehicle has exceeded a reference value in association with a place in the route on which the vehicle has traveled this time. Patent Document 2 discloses a technique for displaying information capable of comparing the current fuel consumption and the average of past fuel consumption for each section. Further, in Patent Document 3, the evaluation of fuel consumption (good, intermediate, bad, etc.) in past driving is displayed for each point or route on the map, and the current fuel consumption evaluation at the current position of the vehicle is also displayed. Techniques to do this are disclosed.

JP 2011-33447 A JP 2004-251786 A JP 2002-350152 A

  In the above-described conventional technology, it has been difficult to make a significant comparison based on the evaluation of the fuel consumption in the current traveling and the evaluation of the fuel consumption in the past traveling. That is, in the techniques disclosed in Patent Documents 1 and 2, the fuel consumption in the current travel is compared with the reference value and the average value in the past, and while these technologies evaluate the fuel efficiency in the current travel, Evaluation of fuel consumption in past driving is not shown. Accordingly, the driver of the vehicle cannot compare the evaluation of the fuel consumption in the past traveling with the evaluation of the fuel consumption in the current traveling while driving, and the fuel in the current traveling is improved by improving the driving after the current position. It cannot be determined whether there is room for suppressing consumption.

In the technique disclosed in Patent Document 3, the evaluation of the fuel consumption in the past traveling is displayed for each point, but the evaluation of the fuel consumption in the current traveling only displays the instantaneous value at the current position. In order to suppress fuel consumption, it is virtually impossible for the driver to keep an eye on the instantaneous value during driving, and it cannot be determined whether or not the current fuel consumption has been continuously good. Therefore, even in Patent Document 3, it is not possible to compare the evaluation of the fuel consumption in the past traveling with the evaluation of the fuel consumption in the current traveling during driving, and taking into consideration the fuel consumption in the current traveling before the current position. Thus, it is virtually impossible to determine whether there is room for improvement in driving after the current position. Therefore, it has been extremely difficult to improve fuel consumption and reduce fuel consumption during this run.
The present invention has been made in view of the above problems, and an object of the present invention is to provide a technique capable of easily comparing the evaluation of the fuel consumption in the current travel section and the evaluation of the past fuel consumption during driving. .

  In order to achieve the above object, in the present invention, for each unit section on the map on which the current position of the vehicle is displayed, a current evaluation indicating an evaluation of fuel consumption in the current travel of the vehicle, and a current travel The past evaluation showing the evaluation of the fuel consumption of the vehicle in the past is also displayed. That is, the current evaluation and the past evaluation are displayed on the map so that they can be viewed simultaneously. As a result, the driver can perform the driving while easily comparing the evaluation of the fuel consumption in the current travel section with the evaluation of the past fuel consumption.

  Here, this evaluation is an evaluation of fuel consumption for each unit section. For this reason, if the travel of the vehicle progresses and the traveled section in the current travel is a section extending over a plurality of unit sections on the map, the current evaluation is displayed on the map over a plurality of unit sections. Therefore, the driver can recognize the current evaluation over a plurality of unit sections. And whether the driver tends to suppress the total fuel consumption in the plurality of unit sections that have been traveled in the current travel, from the good or bad evaluation of the fuel efficiency over the plurality of unit sections that have already traveled in the current travel It is possible to grasp whether the excessive fuel consumption tends to be large.

  On the other hand, the past evaluation is also an evaluation of fuel consumption for each unit section. Since it is virtually impossible to imagine that the vehicle has only traveled in one unit section in the past, past evaluations are also displayed on the map over a plurality of unit sections. Therefore, the driver can recognize past evaluations over a plurality of unit sections. And, the driver has a tendency to suppress the total fuel consumption in the past driving because the evaluation of the fuel consumption over the plurality of unit sections that have been driven in the past driving has been good, or the total fuel consumption is large. You can see if it was a trend. Therefore, in sections where the total fuel consumption tends to be suppressed in past driving, it is estimated that it is easy to drive while suppressing fuel consumption when driving again in the same section. Can do. Further, it can be estimated that there is room for improvement in fuel consumption in a section in which the total fuel consumption tends to be large in past driving. That is, it is possible to determine a guideline for traveling in the section based on the evaluation of the fuel consumption of the section that has traveled in the past.

  In the present invention, since the current evaluation and the past evaluation for each unit section are displayed together on the map, the driver compares the current evaluation and the past evaluation over a plurality of unit sections while driving. You can drive. Generally, the driver cannot stare at the display unit in the course of traveling of the vehicle, and the driver can only view the information displayed on the display unit intermittently. Whether or not the fuel consumption can be suppressed in the process from the start to the end of driving, even if the driver evaluates the fuel efficiency at the moment of driving the current position intermittently and compares it with the past evaluation. It is difficult to judge.

  However, in the present invention, the current evaluation and past evaluation for each unit section are displayed together on a map, and the driver can list and grasp the current evaluation and past evaluation for a plurality of unit sections. Therefore, by comparing the past evaluation in the unit section where the driver can travel after the current position and the current evaluation, while determining the guideline of the section that has traveled in the past according to the total fuel consumption amount in the current travel It becomes possible to drive. For example, in the state where the past evaluation in the section after the current position is displayed, when the total fuel consumption is large in the current travel to the current position and the driver wants to suppress the fuel consumption in the future travel, It can be estimated that the fuel efficiency can be improved if the vehicle travels while suppressing the accelerator opening in the section where the total fuel consumption tends to be large in the past travel. Further, it can be estimated that the fuel consumption can be suppressed without excessively careful driving in the section in which the total fuel consumption tends to be suppressed in the past traveling.

  Furthermore, in the state where the past evaluation in the section around the current position is displayed, if the total fuel consumption is large in the current travel to the current position and the driver wants to suppress the fuel consumption in the future travel, If a route is selected so as to travel in a section where the total fuel consumption tends to be suppressed in past travel, it can be estimated that fuel consumption can be suppressed.

  Furthermore, when the section traveled this time coincides with the section traveled in the past, that is, when the vehicle traveled in the section where the past evaluation was displayed, the past evaluation and the current evaluation in the same unit section are Can be contrasted. In this case, the driver can recognize how the current evaluation has changed compared to the past evaluation. Therefore, the driver can drive while grasping whether or not the total fuel consumption has improved compared to the past in the section traveled this time.

  Here, the map display control means can display a map around the current position along with the current position of the vehicle on the display unit, and can display the current evaluation and past evaluation for each unit section on the map. I can do it. That is, it is only necessary that the display unit can display a map indicating roads and facilities around the current position of the vehicle, information indicating the current position of the vehicle, current evaluation, and past evaluation. In addition, in this invention, it is comprised so that this evaluation and past evaluation may be displayed for every unit area on a map. Here, the current evaluation and the past evaluation are defined for each unit section, and in this time and in the past, normally, since the vehicle travels in a plurality of unit sections, the current evaluation and the past in a plurality of consecutive unit sections are displayed on the map. Evaluation and will be displayed.

  Further, the unit section may be a section for deriving the conclusion of the evaluation regarding fuel efficiency, and a section of a certain distance may be used as the unit section, or a section determined by a predetermined rule may be used as the unit section. As the latter, for example, it is possible to adopt a configuration in which one link whose end point is the nearest node indicated by the map information is one unit section. Furthermore, the unit section that is the target for displaying the current evaluation and the unit section that is the target for displaying the past evaluation may be the same or different. That is, it is only necessary that the unit section is determined by a common rule, and the unit section to be displayed may be appropriately selected.

  Furthermore, various modes can be assumed as modes for displaying the current evaluation and the past evaluation together. That is, each evaluation may be displayed in such a manner that the driver can recognize the current evaluation and the past evaluation at the same time. Therefore, it is possible to display information that directly indicates the current evaluation and past evaluation, or display information that directly indicates one of the current evaluation and past evaluation and information that indirectly indicates the other. It is also possible to use this mode. As the latter, for example, one of the current evaluation and the past evaluation is displayed, and information indicating the relative relationship between the other and one (the other is a better evaluation than the other, an equivalent evaluation that is a bad evaluation) For example, information indicating that the information is displayed.

  The current evaluation acquisition means only needs to be able to acquire the current evaluation indicating the evaluation of the fuel consumption in the current travel of the vehicle for each unit section. In other words, it is only necessary to acquire, for each unit section, the current evaluation for at least the section displayed on the map among the current travel section having the current position as the end point. Here, the current travel section is a section where the current position is the end point, and the total distance of the section increases as the vehicle advances. In addition, the starting point of the current travel section is not particularly limited, and when the vehicle continuously travels to the current position, the start point of the continuous travel may be set as the start point of the current travel section, or the travel date may be different. The point where the vehicle existed before reaching the current position in the case of continuous running may be used as the starting point of the section. That is, it is only necessary to define the current travel section so that the current travel and the past travel can be distinguished from each other and compared with each other.

  Note that the fuel efficiency evaluation indicated by the current evaluation as described above may be any information that serves as a guideline for changing the fuel efficiency, and may be information indicating the value of the fuel efficiency (for example, information indicating the average value in the unit section). It may be information indicating the result of comparing the standard fuel efficiency with the current fuel efficiency (for example, information indicating a relative relationship with the standard fuel efficiency), or a driving operation for improving the fuel efficiency. It may be information for evaluating the presence or absence (for example, information indicating the frequency of driving operations contributing to fuel efficiency improvement). Of course, for the past evaluation, similarly, the evaluation of the fuel consumption may be information that serves as a guideline for changing the fuel consumption.

  The past evaluation acquisition unit only needs to be able to acquire a past evaluation that shows the evaluation of the fuel consumption of the vehicle in the past for each unit section rather than the current travel. That is, it is only necessary that the past evaluation can be acquired for the display target section of the past evaluation on the map. Specifically, among the driving sections displayed in the map that are past the current time, the section that should be compared with the current evaluation is set as the display target section of the past evaluation, and the evaluation of the fuel consumption for the display target section is performed for each unit section. You only have to get it. Here, the display target section of the past evaluation may be all or a part of the section in which the information of the past evaluation exists. That is, the past fuel consumption evaluation is regularly specified and recorded on the recording medium, and is a unit section on the road included in the map, and all the past fuel consumption evaluations recorded on the recording medium are recorded. The unit section may be configured to display a past evaluation, or a past evaluation may be displayed by selecting a display target section from a unit section in which a past fuel consumption evaluation is recorded on a recording medium.

  As an example of the configuration in which the display target section is selected from the unit sections whose past fuel consumption evaluations are recorded on the recording medium, the vehicle fuel consumption evaluation when traveling in the section including the current position in the past rather than the current traveling is performed. It is good also as a structure which acquires the past evaluation shown for every unit area. That is, the past evaluation is acquired with the section including the current position as the display target section of the past evaluation. According to this configuration, in a state where the current evaluation before the current position is displayed on the map, the past evaluation of the section including the current position is also displayed on the map. Since the section that includes the current position includes a road that runs immediately after the current position, the driver can recognize past evaluations after the current position, and can also drive while comparing the current evaluation before the current position. become.

  In addition, when the vehicle is traveling from the departure location to the destination, the current evaluation of the section from the departure location to the current position is obtained, and the vehicle is the same point as the departure location in the past than the current travel. It is good also as a structure which acquires the past evaluation in the case of departing from and driving to the same point as the destination. That is, the present evaluation and the past evaluation are displayed when the starting point and the destination are common in the current traveling and the past traveling. According to this configuration, it is possible to provide a guideline for suppressing the total fuel consumption when traveling this time from a certain starting point to another destination as compared to past traveling.

  In addition, the departure point and the destination may be points explicitly designated by the driver, or depart from points determined to have departed or arrived based on the operation state of the vehicle. You may employ | adopt the structure made into a ground and a destination. Further, the current destination may be estimated based on, for example, the current travel route, past travel history, and the like.

  Furthermore, it is good also as a structure which displays the evaluation of the fuel consumption over a several unit area in addition to the evaluation of the fuel consumption for every unit area. For example, the current average fuel efficiency indicating the average fuel efficiency of the vehicle in the current travel and the past average fuel efficiency indicating the average fuel efficiency of the vehicle in the past than the current travel are acquired, and the current average fuel efficiency and the past average fuel efficiency are displayed together. It is good also as a structure displayed on a part. According to this configuration, in addition to the current evaluation and past evaluation for each unit section, the driver can recognize the current average fuel consumption and the past average fuel consumption, which are evaluations over a plurality of unit sections, more easily. The total fuel consumption and the past total fuel consumption can be determined. The current average fuel consumption and the past average fuel consumption may be acquired for each of the predetermined evaluation interval for the current average fuel consumption and the evaluation interval for the past average fuel consumption.

  Furthermore, as an example of the display mode of the current evaluation and the past evaluation, the current evaluation and the past evaluation may be displayed on the map in different modes. According to this configuration, the driver can clearly distinguish the current evaluation from the past evaluation without confusion.

  Furthermore, you may employ | adopt the structure which displays this evaluation and past evaluation on a map in the aspect different from the traffic information displayed on the map. According to this configuration, the driver can clearly distinguish the traffic information (congestion information and the like) displayed on the map from the current evaluation and the past evaluation without confusion.

  Furthermore, when displaying this evaluation and past evaluation about the same unit area, it is good also as a structure displayed on a map in the aspect which can distinguish this evaluation and past evaluation. That is, when the current evaluation and the past evaluation are displayed for the same unit section, confusion between them tends to occur. Moreover, even if the current evaluation and the past evaluation are displayed in different modes, if the icon for display is the same size and the current evaluation and the past evaluation are displayed at the same position, Only one of them is visible. Therefore, if the current evaluation and past evaluation are displayed on the map in a distinguishable manner, even if the current evaluation and past evaluation are displayed in the same unit section, it is possible to clearly distinguish both. is there.

  Further, as an example of a configuration in which the current evaluation and the past evaluation are displayed on the map in a distinguishable manner, when the current evaluation and the past evaluation are displayed for the same unit section, the current evaluation and the past evaluation are located at different positions on the map. It is possible to adopt a configuration for displaying on the screen. According to this configuration, even when the current evaluation and the past evaluation are displayed for the same unit section, it is possible to prevent the current evaluation and the past evaluation from being completely overlapped. Can be clearly distinguished.

  Furthermore, when displaying the current evaluation and the past evaluation for the same unit section, the current evaluation and the past evaluation are displayed on the same unit section of the map with the same shape and different size icons, and the icons overlap each other. In some cases, a configuration in which the smaller icon is displayed in the overlapping portion can be employed. That is, one of the current evaluation and the past evaluation is a small icon, the other is a large icon, and a small icon is displayed when the small icon and the large icon overlap so that the small icon is not hidden by the large icon. indicate. According to this configuration, all of the small icons and at least a part of the large icons can be displayed, and the current evaluation and the past evaluation can be clearly distinguished.

  Further, the display unit is configured to display a first map indicating the current position and the vicinity of the current position, and a second map indicating the current position and the vicinity of the current position, and this evaluation is the first The past evaluation may be displayed on the second map. According to this configuration, even when the current evaluation and the past evaluation are displayed for the same unit section, it is possible to prevent the current evaluation and the past evaluation from being confused. It is possible to distinguish clearly.

  Further, when the current evaluation and the past evaluation are displayed for the same unit section, it is possible to adopt a configuration in which the current evaluation is displayed on a map and the current evaluation is highlighted when the current evaluation and the past evaluation are different. That is, when the current evaluation and the previous evaluation are the same, the current evaluation is displayed without being emphasized, and when the current evaluation and the past evaluation are different, the current evaluation is highlighted. According to this configuration, when the current evaluation is not emphasized, the driver can recognize that the current evaluation and the past evaluation are the same, and when the current evaluation is emphasized, the driver can recognize the current evaluation and the past evaluation. It can be recognized that the evaluation is different. Note that the above configuration is preferably applied to a configuration in which the current evaluation and the past evaluation are two-level evaluations, because the past evaluation when the current evaluation is emphasized is specified. In addition, various forms of highlighting can be adopted as long as it is possible to distinguish between non-highlighted display and highlighted display.

  Furthermore, various configurations other than the above-described example can be adopted as the configuration for distinguishing between the current travel and the past travel. For example, after the power source of the vehicle is activated, when the current position is reached without stopping the power source, the current evaluation for the section from the position where the power source was activated to the current position is acquired, and the vehicle It is good also as a structure which acquires the past evaluation before the time of starting a motive power source. In other words, the evaluation from the start of the power source at the past closest to the present to the current position is regarded as the current travel, and the current evaluation is obtained. To do. According to this configuration, every time the driver starts driving, it is possible to determine whether or not the fuel efficiency has improved with respect to the previous driving.

  Further, when the vehicle has reached the current position by traveling after the time specified by the user, the current evaluation of the section from the vehicle position to the current position at the time specified by the user is acquired, and the user It is good also as a structure which acquires the past evaluation before the time designated as (2). In other words, the evaluation before the time point designated by the user can be compared with the evaluation before the time point. According to this configuration, it is possible to determine whether or not the fuel consumption has improved as compared with the traveling at the time specified by the user.

  Furthermore, the method of displaying the current evaluation and the past evaluation for each unit section together as in the present invention is also applicable as a program or method. In addition, the system, program, and method as described above may be realized as a single device, or may be realized by using components shared with each unit provided in the vehicle when realized by a plurality of devices. It can be assumed and includes various aspects. For example, it is possible to provide a navigation system, method, and program including the above-described devices. Further, some changes may be made as appropriate, such as a part of software and a part of hardware. Furthermore, the invention can be realized as a recording medium for a program for controlling the system. Of course, the software recording medium may be a magnetic recording medium, a magneto-optical recording medium, or any recording medium to be developed in the future.

It is a block diagram which shows the navigation terminal containing an evaluation display system. It is a flowchart which shows an evaluation information acquisition process. It is a flowchart which shows an evaluation information display process. (4A) (4D) is a figure which shows the example of the map displayed, (4B) (4C) (4E) is a figure which shows the example of a display of evaluation for every unit area.

Here, embodiments of the present invention will be described in the following order.
(1) Configuration of navigation terminal:
(2) Evaluation information acquisition process:
(3) Evaluation information display processing:
(4) Other embodiments:

(1) Configuration of navigation terminal:
FIG. 1 is a block diagram showing a configuration of an evaluation display system mounted on a vehicle. In the present embodiment, the evaluation display system is realized by the navigation terminal 10. The navigation terminal 10 includes a control unit 20 that includes a CPU, a RAM, a ROM, and the like, and the control unit 20 can execute a program stored in the ROM. In this embodiment, a navigation program can be executed as one of the programs. The navigation program is a program for causing the control unit 20 to realize a function of displaying a map including the current position of the vehicle on the display unit of the navigation terminal and guiding the driver to the destination. An evaluation display program 21 that displays the evaluation together is included.

  The vehicle according to the present embodiment includes a fuel efficiency evaluation lamp ECU 40, a GPS receiver 41, a vehicle speed sensor 42, a gyro sensor 43, and a user I / F unit 44. The GPS receiver 41 receives a radio wave from a GPS satellite and outputs a signal indicating a signal for calculating the current position of the vehicle via an interface (not shown). The control unit 20 acquires this signal and acquires the current position of the vehicle. The vehicle speed sensor 42 outputs a signal corresponding to the rotational speed of the wheels provided in the vehicle. The control unit 20 acquires this signal via an interface (not shown) and acquires the vehicle speed. The gyro sensor 43 detects angular acceleration about turning in the horizontal plane of the vehicle, and outputs a signal corresponding to the direction of the vehicle. The control unit 20 acquires this signal and acquires the traveling direction of the vehicle. The vehicle speed sensor 42, the gyro sensor 43, and the like are used for correcting the current position of the vehicle specified from the output signal of the GPS receiver 41. Further, the current position of the vehicle is appropriately corrected based on the travel locus of the vehicle.

  The fuel efficiency evaluation lamp ECU 40 includes a control circuit for evaluating the fuel efficiency of a running vehicle based on the operation of the vehicle, and is connected to a lamp 40a provided on the instrument panel of the vehicle. In this embodiment, the fuel efficiency evaluation lamp ECU 40 is configured to display information indicating fuel consumption (for example, information specified from a signal for operating the injector, information indicated by the fuel consumption sensor, etc.), output information of the vehicle speed sensor 42, and transmission state. It is determined whether or not the combination with the information indicating the condition matches the condition for suppressing fuel consumption. Various conditions can be defined as the conditions for suppressing the consumed fuel. In this embodiment, the consumed fuel is equal to or less than a predetermined amount, the vehicle speed is equal to or greater than a predetermined threshold, and the transmission Is in a normal state (a state such as a drive mode that is not a state for acceleration with high efficiency such as a sports mode), it is assumed that the condition for suppressing fuel consumption is met.

  The fuel consumption evaluation lamp ECU 40 turns on the lamp 40a when the combination of the information matches the condition for suppressing the fuel consumption. As a result, the driver performs an operation in which the consumed fuel is suppressed when the lamp 40a is lit, and the driver performs an operation in which the consumed fuel is excessively consumed when the lamp 40a is turned off. Judgment can be made. In addition, the fuel efficiency evaluation lamp ECU 40 outputs information indicating that the lamp 40a is lit to the control unit 20 when the lamp 40a is lit. Therefore, the control unit 20 can specify that the lamp 40a is turned on and off based on the information. Further, the fuel efficiency evaluation lamp ECU 40 outputs information indicating the above-described fuel consumption to the control unit 20. The control unit 20 can specify the fuel consumption (km / l) of the vehicle for each position based on the information indicating the consumed fuel.

  The user I / F unit 44 is an interface unit for inputting a driver's instruction and providing various information to the driver. The user I / F unit 44 includes an input unit such as a display unit and a switch (not shown), a switch, a speaker, and the like. Audio output unit. The user I / F unit 44 receives a control signal from the control unit 20 and displays an image for performing various guidance on the touch panel display.

  Map information 30 a is recorded on the recording medium 30. The map information 30a includes node data indicating the position of the node corresponding to the end point of the road on which the vehicle travels, shape interpolation point data indicating the position of the shape interpolation point for specifying the shape of the road between the nodes, the nodes The link data indicating the connection of the link is included. Moreover, in this embodiment, the evaluation information 30b which shows evaluation of the fuel consumption of a vehicle is recorded whenever a vehicle drive | works. The evaluation information 30b is information indicating the rate at which the lamp 40a is lit in the fuel efficiency evaluation target section in the unit section, and the evaluation information 30b is recorded while the destination is set and the vehicle is traveling. Information indicating the destination and the departure place is recorded in association with the evaluation information 30b.

  The control unit 20 displays the map including the current evaluation and the past evaluation on the display unit of the user I / F unit 44 by executing the evaluation display program 21 included in the navigation program. In order to execute this process, the evaluation display program 21 includes a map display control unit 21a, a current evaluation acquisition unit 21b, and a past evaluation acquisition unit 21c.

  The map display control unit 21a displays a map around the current position along with the current position of the vehicle on the display unit of the user I / F unit 44, and combines the current evaluation and past evaluation for each unit section on the map. This is a program module that causes the control unit 20 to realize the function of displaying the information. That is, the control unit 20 specifies the current position of the vehicle based on the output signals of the GPS receiving unit 41, the vehicle speed sensor 42, and the gyro sensor 43, specifies the display range of the map around the current position of the vehicle, and displays the display range. Information on roads, facilities, etc. is extracted from the map information 30a. Then, the control unit 20 outputs a control signal for drawing a map indicating the current position of the vehicle and roads and facilities around the current position to the display unit of the user I / F unit 44. As a result, the display unit of the user I / F unit 44 displays a map showing roads and facilities around the current position of the vehicle, and the current position of the vehicle.

  The current evaluation acquisition unit 21b realizes the control unit 20 with a function of acquiring the current evaluation that indicates the evaluation of the fuel consumption in the current travel of the vehicle for each unit section (in the present embodiment, a section of a constant distance (for example, 100 m)). This is a program module to be executed. In addition, the control part 20 performs the evaluation information acquisition process mentioned later by this time evaluation acquisition part 21b in the process in which a vehicle drive | works, acquires the lighting rate for every unit area of the lamp 40a, and calculates the lighting rate for the said unit area. Recorded as evaluation information 30b. A current evaluation and a past evaluation are generated from the evaluation information 30b.

  In the present embodiment, the driver operates the user I / F unit 44 by the function of the navigation program to set the destination, and the current position of the vehicle at the time of setting the destination is set as the starting point. Search and guide the route from the starting point to the destination. If the vehicle is currently traveling from the departure point to the destination, the traveling from the departure point to the destination is regarded as the current traveling. That is, the section traveled this time is a section where the starting point is the starting point and the current position is the end point, and the total distance of the section that traveled this time is increased until the vehicle reaches the destination as the vehicle travels. Note that when the destination is set and the vehicle reaches the destination, the control unit 20 records the evaluation information 30b for each unit section from the departure point to the destination. The evaluation information is recorded in association with the departure place and the destination.

  And the control part 20 acquires the evaluation regarding this driving | running | working from this evaluation information 30b as this evaluation by the process of this evaluation acquisition part 21b. For this purpose, the control unit 20 acquires evaluation information 30b for each unit section in the section in which the vehicle has traveled this time before reaching the destination after the start of traveling of the vehicle at the departure place. Then, the control unit 20 compares the lighting ratio of the lamp 40a for each unit section indicated by the evaluation information 30b (the ratio of the distance traveled in the state where the lamp 40a is lit) with a predetermined threshold, and is equal to or higher than the predetermined threshold. In some cases, the fuel economy is evaluated as “good”, and when the lighting ratio is smaller than a predetermined threshold, the fuel efficiency is evaluated as “bad”. That is, in this embodiment, the higher the lighting ratio of the lamp 40a, the higher the fuel consumption. Therefore, the lighting ratio of the lamp 40a corresponds to the frequency of driving operations that contribute to the improvement of the fuel consumption. The presence or absence of a driving operation for improvement can be evaluated. Note that the predetermined threshold only needs to be determined when the fuel efficiency is evaluated, and in the present embodiment, the predetermined threshold is set according to the diagnostic difficulty set in advance by the driver. That is, the predetermined threshold is set to be larger as the diagnosis difficulty level is higher.

  Further, in the present embodiment, the control unit 20 acquires the current average fuel consumption indicating the average fuel consumption of the vehicle in the current travel by the processing of the current evaluation acquisition unit 21b. That is, when traveling with the destination set is performed, the control unit 20 determines the fuel consumption of the vehicle for each position based on the information indicating the fuel consumption from the departure point to the current position when recording the evaluation information 30b. The fuel consumption averaged with respect to the combination of the starting point and the destination is recorded in association with each other. And the control part 20 acquires the fuel consumption regarding this driving | running | working as this time average fuel consumption among the averaged fuel consumption which evaluation information 30b shows by the process of this time evaluation acquisition part 21b. Note that the average fuel consumption information associated with the evaluation information 30b is sequentially updated as the vehicle travels. Therefore, before the vehicle reaches the destination, the average fuel consumption in the process of traveling from the starting point to a point behind the destination in the direction of travel corresponds to the combination of the starting point and the destination. Attached and recorded. On the other hand, when the vehicle reaches the destination, the average fuel consumption in the process of traveling from the departure point to the destination is recorded in association with the combination of the departure point and the destination.

  The past evaluation acquisition unit 21c is a program module that causes the control unit 20 to realize a function of acquiring a past evaluation indicating, for each unit section, the fuel efficiency evaluation of the vehicle in the past from the current travel. In the present embodiment, the control unit 20 becomes a display target of past evaluation when a vehicle departs from the same point as the departure point in the past and travels to the same point as the destination. Considered past driving. And the control part 20 acquires the evaluation for every unit area of the area which the vehicle drive | worked by the past driving | running | working as a past evaluation.

  For this purpose, the control unit 20 acquires information indicating the lighting ratio of the lamp 40a associated with the same starting point and destination as the above-described current traveling from the evaluation information 30b. In addition, when a plurality of pieces of information in which the same starting point and destination are associated with each other are recorded, for example, the average fuel consumption associated with the starting point and the destination is the best. What is necessary is just to set it as the structure which acquires (that is, the thing with the highest average fuel consumption in the past) as a past evaluation. Then, the control unit 20 compares the lighting ratio of the lamp 40a with a predetermined threshold value, and evaluates the fuel consumption as “good” when the lighting ratio is equal to or higher than the predetermined threshold value, and when the lighting ratio is smaller than the predetermined threshold value. The evaluation is “evil”. In addition, in order to determine whether the starting point and the destination are the same for the current driving and the past driving, a predetermined margin is provided for the distance from the point. For example, two points within a distance of 300 m A configuration that is regarded as the same can be adopted.

  Furthermore, in this embodiment, the control part 20 acquires the past average fuel consumption which shows the average fuel consumption of the vehicle in the past driving | running | working by the process of the past evaluation acquisition part 21c. That is, the control unit 20 refers to the evaluation information 30b by the process of the past evaluation acquisition unit 21c, and selects the highest fuel consumption from the averaged fuel consumption associated with the same starting point and destination as the above-described current traveling. The fuel consumption is extracted and obtained as the past average fuel consumption. In the present embodiment, the past average fuel consumption is the highest from the past one or more runs, with the run from the departure point to the destination being taken as one run, and the average fuel consumption is specified each time. Although it is the structure which extracts and displays a fuel consumption, it is good also as a past average fuel consumption of course the value which averaged the fuel consumption of several past driving | running | working.

  When the current evaluation, the past evaluation, the current average fuel consumption, and the past average fuel consumption are acquired as described above, the control unit 20 performs the current evaluation, the past evaluation, the current average fuel consumption, and the past by the processing of the map display control unit 21a. A control signal for drawing the average fuel consumption on the map is output to the display unit of the user I / F unit 44. In order to display the current evaluation and the past evaluation, the control unit 20 travels from the map currently displayed on the display unit of the user I / F unit 44 by the section traveled by the current travel and the past travel. Are extracted. Then, the control unit 20 specifies the current evaluation and the past evaluation for each unit section in each section, and outputs a control signal for rendering the current evaluation and the past evaluation on the map of the user I / F unit 44. Output to the display. As a result, the display unit of the user I / F unit 44 displays the current evaluation, the past evaluation, the current average fuel consumption, and the past average fuel consumption for each unit section.

  FIG. 4A shows an example of a map displayed on the display unit. In this example, an icon C indicating the current position of the vehicle is displayed on the road R indicated by the solid curve. In the example shown in FIG. 4A, the evaluation of fuel economy is displayed by an icon imitating a leaf on the road, and the current evaluation of “good” by the solid line icon Etg and the icon Etb with a solid line hatch. The current evaluation of “Evil” is shown, the past evaluation of “Good” is indicated by the broken line icon Epg, and the past evaluation of “Evil” is indicated by the icon Epb with the broken line hatched. In the example shown in FIG. 4A, a rectangular area is provided at the lower right of the map displayed on the display unit, and the current average fuel consumption (24.5 km / l in the figure) and the past average fuel consumption (in the figure). Is 23.9 km / l). In addition, the thick line described on the road R has shown the driving | running | working driving | running route | path for reaching from the departure place to the destination in this driving | running | working.

  As described above, according to the present embodiment, the current evaluation and the past evaluation are displayed on the map displayed on the display unit of the user I / F unit 44 so as to be visible at the same time. As a result, the driver can perform the driving while easily comparing the evaluation of the fuel consumption in the current travel section with the evaluation of the past fuel consumption. As shown in FIG. 4A, the current evaluation and the past evaluation are displayed on the map in different modes (solid line and broken line), so that the driver can clarify the current evaluation and the past evaluation without confusion. Can be distinguished.

  Here, the current evaluation and the past evaluation are defined for each unit section, and in this time and in the past, normally, since the vehicle travels in a plurality of unit sections, the current evaluation and the past in a plurality of consecutive unit sections are displayed on the map. Evaluation and will be displayed. When the evaluation is displayed on the map over a plurality of unit sections this time, the driver evaluates the fuel consumption over the plurality of unit sections that have already traveled. It is possible to grasp whether the amount tends to be suppressed or whether the excessive fuel consumption tends to be large. For example, in the example shown in FIG. 4A, it can be understood that the total fuel consumption is suppressed if the icon Etg with a solid hatch is small, and the total fuel consumption tends to be large if the icon Etg is large.

  On the other hand, when the past evaluation is displayed on the map over a plurality of unit sections, the driver can recognize the past evaluation over the plurality of unit sections. Then, the driver can grasp whether the total fuel consumption tends to be suppressed or whether the total fuel consumption tends to be large because the evaluation of the fuel efficiency over a plurality of unit sections is good or bad. Therefore, in the section where the total fuel consumption tends to be suppressed, it can be estimated that it is easy to drive while suppressing the fuel consumption when the vehicle travels again in the same section. Further, it can be estimated that there is room for improvement in fuel consumption in the section where the total fuel consumption tends to be large. That is, it is possible to determine a guideline for traveling in the section based on the evaluation of the fuel consumption of the section that has traveled in the past. For example, in the example shown in FIG. 4A, after the current position C, the total fuel consumption tends to be suppressed in the sections other than the section Zb, and the driver is fueled when he / she travels again in the same section. It can be estimated that it is easy to drive while suppressing consumption. Further, in the section Zb, the total fuel consumption tends to be large, and the driver can estimate that there is room for improvement in fuel consumption.

  In the present invention, since the current evaluation and the past evaluation for each unit section are displayed together on the map, the driver compares the current evaluation and the past evaluation over a plurality of unit sections while driving. You can drive. Generally, the driver cannot stare at the display unit in the course of traveling of the vehicle, and the driver can only view the information displayed on the display unit intermittently. Whether or not the fuel consumption can be suppressed in the process from the start to the end of driving, even if the driver evaluates the fuel efficiency at the moment of driving the current position intermittently and compares it with the past evaluation. It is difficult to judge.

  However, in the present embodiment, the current evaluation and past evaluation for each unit section are displayed together on the map, and the driver can grasp the current evaluation and past evaluation for a plurality of unit sections in a list. . Therefore, by comparing the past evaluation in the unit section where the driver can travel after the current position and the current evaluation, while determining the guideline of the section that has traveled in the past according to the total fuel consumption amount in the current travel It becomes possible to drive. For example, according to the example shown in FIG. 4A, the driver can grasp the ratio of Etg whose evaluation is “good” and the ratio of Etb whose evaluation is “bad” only by listing the map. . Therefore, it is possible to recognize whether the total fuel consumption is relatively large or small in the current travel to the current position based on the ratio of Etg and Etb.

  Further, the driver can grasp the ratio of Epg whose past evaluation is “good” and the ratio of Epb whose past evaluation is “bad” only by listing the maps. Therefore, it is possible to grasp the section where the total fuel consumption is relatively large and the section where the total fuel consumption is relatively small in the past travel of the section after the current position by the ratio of Epg and Epb. For example, in the example shown in FIG. 4A, the zone Zb where the total fuel consumption is relatively large can be immediately recognized. And, for example, if the total fuel consumption in the current run is relatively large and the driver wants to suppress the fuel consumption in the future run, in the section where the total fuel consumption tends to be high in the past run It can be estimated that the fuel efficiency can be improved by traveling with the accelerator opening suppressed. Further, it can be estimated that the fuel consumption can be suppressed without excessively careful driving in the section in which the total fuel consumption tends to be suppressed in the past traveling.

  When the starting point and the destination are the same for the current traveling and the past traveling, the same route is usually searched by the navigation program. When the current travel and the past travel are the same route, as shown in FIG. 4A, the current evaluation Etg and Etb regarding the current travel are displayed for the route from the departure place to the current position. The past evaluations Epg and Epb regarding the past travel are displayed at least for the route from the current position to the destination. In this case, the past evaluations Epg and Epb are evaluations of the fuel consumption of the vehicle when traveling in a section including the current position C in the past rather than the current traveling. As shown in FIG. 4A, the section including the current position for which the past evaluations Epg and Epb are displayed includes a road that runs immediately after the current position C. Therefore, the driver recognizes the past evaluations Epg and Epb after the current position. In addition, it is possible to operate while comparing the current evaluation Etg, Etb before the current position. Therefore, according to the present embodiment, when this time traveling from a certain departure point to another destination, the driver determines the guideline for suppressing the total fuel consumption compared to the past traveling while driving. Is possible.

  Further, in the present embodiment, in the display unit of the user I / F unit 44, in addition to the evaluation of the fuel consumption for each unit section, the current average fuel consumption and the past average fuel consumption, which are evaluations of fuel consumption over a plurality of unit sections, are displayed. Displayed (displayed in the lower right rectangular region T in FIG. 4A). Therefore, the driver can recognize the current average fuel consumption and the past average fuel consumption, which are evaluations over a plurality of unit sections, in addition to the current evaluation and past evaluation for each unit section, and more easily this total fuel consumption. And the past total fuel consumption can be determined.

(2) Evaluation information acquisition process:
Next, the evaluation information acquisition process will be described in detail. FIG. 2 is a flowchart of the evaluation information acquisition process. In the present embodiment, the control unit 20 executes the evaluation information acquisition process by the current evaluation acquisition unit 21b after the start of travel with the destination set. Before the evaluation information acquisition process is executed, the control unit 20 evaluates the total distance for determining whether or not the vehicle has traveled a certain distance defined as the length of the unit section, and the evaluation of fuel consumption within the unit section. The variables indicating the evaluation distance for specifying the distance that can be performed and the lighting distance for specifying the distance traveled while the lamp 40a is lit are initialized.

  The control unit 20 adds the travel distance to the cumulative distance (step S100). In the present embodiment, steps S100 to S130 are a loop process, and when the loop process is repeated, the process of step S100 is performed every certain period (for example, 100 ms). Therefore, based on the output signals from the GPS receiver 41, the vehicle speed sensor 42, and the gyro sensor 43, the control unit 20 travels from the previous step S100 to the current step S100. The travel distance ΔL is specified and added to the cumulative distance. That is, the control unit 20 performs an addition process so that a value indicating the total distance traveled by the vehicle while the steps S100 to S130 are repeated becomes the cumulative distance.

  Next, the control unit 20 determines whether or not the vehicle speed is equal to or higher than a predetermined value (step S110). If it is not determined that the vehicle speed is equal to or higher than the predetermined value, steps S115 to S125 are skipped. On the other hand, when it is determined in step S110 that the vehicle speed is equal to or higher than the predetermined value, the control unit 20 adds the travel distance to the evaluation distance (step S115). That is, the above-mentioned traveling distance ΔL added to the cumulative distance in step S100 is added to the evaluation distance.

  Here, the predetermined value as the determination condition in the determination in step S110 is defined in advance as a vehicle speed value (for example, 4 km / h) that makes it impossible to evaluate the fuel efficiency significantly when the vehicle speed is lower than the predetermined value. Just do it. In other words, when the vehicle speed is excessively low, it is difficult to distinguish between driving with reduced fuel consumption and driving with excessive fuel consumption. Does not evaluate fuel economy. For this reason, in this embodiment, when the vehicle speed is lower than the predetermined value, it is regarded that the significant fuel consumption cannot be evaluated, and step S115 is not executed. However, if the vehicle speed is equal to or higher than the predetermined value, the significant fuel consumption evaluation is performed. In step S115, the evaluation distance is increased by ΔL. The predetermined value may be the same as the predetermined threshold set for the vehicle speed as one of the conditions when the fuel efficiency evaluation lamp ECU 40 lights the lamp 40a.

  Further, the control unit 20 determines whether or not the lamp 40a is lit (step S120), and skips step S125 if it is not determined that the lamp 40a is lit. On the other hand, when it is determined in step S120 that the lamp 40a is lit, the control unit 20 adds the travel distance to the lighting distance (step S125). That is, when it is possible to perform a significant fuel efficiency evaluation and the lamp 40a is lit, the control unit 20 uses the travel distance ΔL added to the cumulative distance in step S100. Add to the evaluation distance.

  Next, the control unit 20 determines whether or not the cumulative distance is equal to or greater than a certain distance (step S130), and performs the processing after step S100 until it is determined in step S130 that the cumulative distance is equal to or greater than the certain distance. repeat. That is, the control unit 20 determines that the vehicle has traveled the unit section when the cumulative distance is equal to or greater than a predetermined distance defined as the distance of the unit section, and exits the loop process of steps S100 to S130. Become.

  When it is determined in step S130 that the cumulative distance is equal to or greater than the predetermined distance, the control unit 20 determines whether or not the evaluation distance is greater than 0 (step S135). That is, it is determined whether or not there is a section in which significant evaluation can be performed in the process in which the vehicle travels in the unit section. When it is determined in step S135 that the evaluation distance is greater than 0, the control unit 20 sets the lighting ratio of the lamp 40a to the lighting distance / evaluation distance (step S140). On the other hand, when it is not determined in step S135 that the evaluation distance is greater than 0, the control unit 20 sets the lighting ratio of the lamp 40a to 0 (step S145). That is, when the denominator for evaluating the lighting ratio is not 0, the lighting ratio is calculated based on the lighting distance and the evaluation distance, and when the denominator for evaluating the lighting ratio is 0, the lighting ratio is defined. Since the lighting ratio cannot be calculated from Of course, it is also possible to make the evaluation impossible.

  Next, the control unit 20 records the lighting ratio of the lamp 40a set in step S140 or S145 in the recording medium 30 as the evaluation information 30b in association with the unit section for which the cumulative distance is to be measured (step S150). . According to the above processing, the evaluation information 30b for each unit section can be recorded on the recording medium 30. When the evaluation information acquisition process is executed with the vehicle destination set, in step S150, the control unit 20 records information indicating the destination and the departure point in association with the evaluation information 30b. .

(3) Evaluation information display processing:
Next, the evaluation information display process will be described in detail. FIG. 3 is a flowchart of the evaluation information display process. In the present embodiment, the destination is set by the driver, and the past starting point and the destination that are the same as the starting point and the destination of the current travel are past. The evaluation information display process is executed when the evaluation information 30b regarding travel exists. Moreover, the control part 20 is updating the map display for every predetermined period in the display part of the user I / F part 44, and the said evaluation information display process is performed for every said update. Furthermore, before the evaluation information display process is executed, the above-mentioned diagnosis difficulty level is specified in advance by a driver's instruction or a default value.

  Steps S200 to S230 are a loop process for displaying a past evaluation on a map, and the control unit 20 first performs processing from the display target of the past evaluation to the processing target by the processing of the map display control unit 21a and the past evaluation acquisition unit 21c. Is selected (step S200). That is, the control unit 20 specifies the range of the map displayed on the display unit of the user I / F unit 44 by the process of the map display control unit 21a. Further, the control unit 20 performs the process of the past evaluation acquisition unit 21c to change the starting point and the destination from the evaluation information 30b in which the same starting point and destination as the starting point and destination in the current travel are associated. The associated averaged fuel consumption is extracted. Further, the control unit 20 is included in the range of the map displayed on the display unit of the user I / F unit 44 from the unit section associated with the extracted evaluation information 30b by the processing of the map display control unit 21a. A unit section is specified as a display target. Then, a unit section that has not been subjected to the process of displaying the past evaluation is selected from the unit sections to be displayed as the unit section to be processed.

  Next, the control unit 20 acquires the past evaluation information of the unit section to be processed by the process of the past evaluation acquisition unit 21c (step S205). That is, the lighting ratio of the lamp 40a in the past travel of the unit section to be processed is acquired. Next, the control unit 20 determines whether or not the lighting ratio of the lamp 40a in the past travel of the unit section to be processed is equal to or greater than a predetermined threshold by the process of the past evaluation acquisition unit 21c (step S210). When it is determined in step S210 that the lighting ratio of the lamp 40a is equal to or greater than a predetermined threshold, the control unit 20 sets the past evaluation of the unit section to be processed to “good” by the process of the past evaluation acquisition unit 21c. (Step S215). If it is not determined in step S210 that the lighting ratio of the lamp 40a is equal to or greater than the predetermined threshold, the control unit 20 sets the past evaluation of the unit section to be processed to “bad” by the processing of the past evaluation acquisition unit 21c. (Step S220). In addition, the predetermined threshold value compared with the lighting ratio of the lamp 40a is set according to the above-mentioned diagnosis difficulty level, and becomes a larger value as the diagnosis difficulty level is higher. Therefore, the higher the diagnosis difficulty level, the more difficult the past evaluation is to be “good”.

  Next, the control part 20 displays the past evaluation of the unit area of a process target by the process of the map display control part 21a (step S225). That is, the control unit 20 outputs a signal for drawing an icon corresponding to the past evaluation of the unit interval to be processed to the display unit of the user I / F unit 44. As a result, the display unit of the user I / F unit 44 displays an icon corresponding to the past evaluation of the unit section to be processed.

  Next, the control part 20 determines whether the past evaluation of the unit area of a display target has been displayed by the process of the map display control part 21a (step S230). That is, the control unit 20 determines whether or not the past evaluation has been displayed for all the display target unit sections specified in step S200. If it is not determined in step S230 that the past evaluation of the unit section to be displayed has been displayed, the processes in and after step S200 are repeated. On the other hand, when it is determined in step S230 that the past evaluation of the unit section to be displayed has been displayed, processing for displaying the current evaluation is performed in step S235 and subsequent steps. When the past evaluation of the unit section to be displayed is displayed, the solid line icons Etg and Etb (icons indicating the current evaluation) shown in FIG. 4A are not displayed, and the icons Epg and Epb (showing the past evaluations) indicated by broken lines are not displayed. Icon) is displayed. In addition, when the route is the same for the current travel and the past travel, the past evaluation is also displayed in the unit section behind the current position of the vehicle. However, the processing after step S235 is performed on the same unit section. When the current evaluation is displayed, the current evaluation is preferentially displayed.

  Steps S235 to S265 are loop processing for displaying the current evaluation on a map. The control unit 20 first performs processing from the display target of the current evaluation to the processing target by the processing of the map display control unit 21a and the current evaluation acquisition unit 21b. Is selected (step S235). That is, the control unit 20 specifies the range of the map displayed on the display unit of the user I / F unit 44 by the process of the map display control unit 21a. Further, the control unit 20 displays on the display unit of the user I / F unit 44 from the unit section associated with the evaluation information 30b recorded on the recording medium in the course of the current run by the process of the current evaluation acquisition unit 21b. A unit section included in the range of the map being specified is specified as a display target. Then, a unit section for which the process for displaying the current evaluation is not performed is selected from the unit sections to be displayed as the unit section to be processed.

  Next, the control unit 20 acquires the current evaluation information of the unit section to be processed by the process of the current evaluation acquisition unit 21b (step S240). That is, the lighting ratio of the lamp 40a in the current travel of the unit section to be processed is acquired. Next, the control unit 20 determines whether or not the lighting ratio of the lamp 40a in the current travel of the unit section to be processed is greater than or equal to a predetermined threshold by the processing of the current evaluation acquisition unit 21b (step S245). When it is determined in step S245 that the lighting ratio of the lamp 40a is equal to or greater than the predetermined threshold, the control unit 20 sets the current evaluation of the unit section to be processed to “good” by the processing of the current evaluation acquisition unit 21b. (Step S250). If it is not determined in step S245 that the lighting ratio of the lamp 40a is equal to or greater than the predetermined threshold value, the control unit 20 sets the current evaluation of the processing target unit section to “bad” by the processing of the current evaluation acquisition unit 21b. (Step S255). The predetermined threshold compared with the lighting ratio of the lamp 40a is the same as the predetermined threshold in step S210.

  Next, the control unit 20 displays the current evaluation of the unit section to be processed by the process of the map display control unit 21a (step S260). That is, the control unit 20 outputs a signal for drawing an icon corresponding to the current evaluation of the unit interval to be processed to the unit interval to the display unit of the user I / F unit 44. As a result, the display unit of the user I / F unit 44 displays an icon corresponding to the current evaluation of the unit section to be processed.

  Next, the control unit 20 determines whether or not the current evaluation of the unit section to be displayed has been displayed by the process of the map display control unit 21a (step S265). That is, the control unit 20 determines whether or not the current evaluation has been displayed for all of the display target unit sections identified in step S235. If it is not determined in step S265 that the current evaluation of the unit section to be displayed has been displayed, the processes in and after step S235 are repeated. On the other hand, when it is determined in step S265 that the current evaluation of the unit section to be displayed has been displayed, the control unit 20 ends the evaluation information display process. In the present embodiment, when the current evaluation is displayed on the same unit section, the current evaluation is preferentially displayed. Therefore, when the current evaluation of the unit section to be displayed is displayed, it is shown in FIG. 4A. As in the example, the evaluation icons Etg and Etb are displayed with solid lines in the section where the vehicle traveled before the current position of the vehicle. In addition, since the current evaluation is not displayed in the section ahead of the current position of the vehicle in the processes of steps S235 to S265, the past evaluation icons Epg and Epb are displayed in broken lines in the section ahead of the current position of the vehicle. Is done.

(4) Other embodiments:
The above embodiment is an example for carrying out the present invention, and various other embodiments can be adopted as long as the current evaluation and the past evaluation for each unit section are displayed together. For example, the current evaluation and the past evaluation may be acquired from an apparatus not mounted on the vehicle, for example, an information management center. Of course, the navigation terminal 10 may be fixedly mounted on the vehicle, or the portable navigation terminal 10 may be brought into the vehicle and used.

  Furthermore, although the above-mentioned vehicle is a vehicle driven by an internal combustion engine, the application target vehicle is not limited to such a vehicle, and the present evaluation and past evaluation are displayed on a map in a hybrid vehicle or an electric vehicle. It may be.

  Further, the evaluation of the fuel consumption may be evaluated based on a condition for a combination of a plurality of elements, or may be evaluated based on a condition for a single element (for example, a fuel consumption value). Further, in a hybrid vehicle driven using liquid fuel and a battery, it may be determined that fuel efficiency is good when the vehicle travels only with a power source having a low unit price for traveling the same distance. For example, when driving a vehicle with a battery can travel the same distance cheaper than with liquid fuel, it is possible to adopt a configuration in which it is judged that the fuel consumption of the state driven using the battery without using liquid fuel is good is there. Of course, in addition to the evaluation of the fuel consumption, an evaluation of the fuel consumption during hybrid driving may be performed. Further, the fuel consumption may be evaluated in two stages as in the above-described embodiment, or may be evaluated in three or more stages.

  Furthermore, the evaluation of the fuel consumption may be information that serves as a guideline for changing the fuel consumption, may be information indicating the value of the fuel consumption (for example, information indicating the average value in the unit section), Information indicating the result of comparing the fuel efficiency with the current fuel efficiency (for example, information indicating a relative relationship with the reference fuel efficiency) may be used.

  In addition to the configuration in which the departure point and the destination are determined when the driver explicitly indicates the destination as described above, various configurations can be adopted. For example, you may employ | adopt the structure which uses the point determined that the vehicle departed based on the operation state of the vehicle, or the point determined to arrive as a starting point or a destination. Further, the current destination may be estimated based on, for example, the current travel route, past travel history, and the like.

  Furthermore, in the above-described embodiment, when the vehicle travels in the past from the same starting point to the same destination as the starting point and destination in the current traveling, the traveling section is the display target of the past evaluation. A display target section for past evaluation may be determined according to a rule. That is, of the past travel sections displayed on the map, the section to be compared with the current evaluation is set as the display target section for the past evaluation, and the evaluation of fuel consumption for each unit section for the display target section is performed in the past evaluation. And it is sufficient. The past evaluation display target section may be all or a part of sections in which past evaluation information exists. For example, it is good also as a structure which displays the past evaluation in all or some sections of the unit section with the information which can specify past evaluation around the present position. In this configuration, when the total fuel consumption is large in the current travel to the current position and the driver wants to suppress the fuel consumption in the future travel, the total fuel consumption tends to be suppressed in the past travel If the route is selected so as to travel in the section that was, it can be estimated that fuel consumption can be suppressed.

  Similarly, in addition to the configuration in which the travel from the departure point to the destination is the current travel, the current travel can be defined by various modes. That is, the starting point of the current travel section is not particularly limited, and when the vehicle continuously travels to the current position, the start point of the continuous travel may be set as the start point of the current travel section, or the travel date may be different. When continuous running is performed, a point where the vehicle exists before the current position may be set as the start point of the section. That is, it is only necessary to define the current travel section so that the current travel and the past travel can be distinguished from each other and compared with each other.

  More specifically, for example, when the power source of the vehicle is activated and then reaches the current position without being stopped, this time for the section from the position where the power source was activated to the current position It is good also as a structure which acquires evaluation and acquires the past evaluation before the time of starting the motive power source of a vehicle. That is, continuous evaluation from the start of the power source at the past time point closest to the present to the current position is regarded as current driving, and this time evaluation is obtained. Assume past evaluation. In this configuration, for example, in the configuration shown in FIG. 1, the current evaluation is specified based on the evaluation information 30b acquired after the vehicle power source was most recently activated, and the evaluation acquired before that time This can be realized by specifying the past evaluation based on the information 30b. According to this configuration, every time the driver starts driving, it is possible to determine whether or not the fuel consumption has improved with respect to the previous driving.

  Further, when the vehicle has reached the current position by traveling after the time specified by the user, the current evaluation of the section from the vehicle position to the current position at the time specified by the user is acquired, and the user It is good also as a structure which acquires the past evaluation before the time designated as (2). In other words, the evaluation before the time point designated by the user can be compared with the evaluation before the time point. In this configuration, for example, in the configuration shown in FIG. 1, the current evaluation is specified based on the evaluation information 30b acquired after the time designated by the user, and based on the evaluation information 30b acquired before the time. This can be realized by specifying the past evaluation. According to this configuration, it is possible to determine whether or not the fuel consumption has improved as compared with the traveling at the time specified by the user.

  Further, the unit section may be a section for deriving the conclusion of the evaluation regarding fuel consumption, and a section determined by a predetermined rule may be used as the unit section in addition to the structure having the section of a constant distance as the unit section. For example, it is possible to adopt a configuration in which one link whose end point is the closest node indicated by the map information is one unit section. Furthermore, the unit section that is the target for displaying the current evaluation and the unit section that is the target for displaying the past evaluation may be the same or different. That is, it is only necessary that the unit section is determined by a common rule, and the unit section to be displayed may be appropriately selected.

  Furthermore, in a configuration in which traffic information (congestion information or the like) is displayed on the map, a configuration in which the current evaluation and the past evaluation are displayed on the map in a manner different from the traffic information may be adopted. According to this configuration, the driver can clearly distinguish the traffic information displayed on the map from the current evaluation and the past evaluation without being confused.

  Furthermore, when displaying this evaluation and past evaluation about the same unit area, it is good also as a structure displayed on a map in the aspect which can distinguish this evaluation and past evaluation. That is, when the current evaluation and the past evaluation are displayed for the same unit section, confusion between them tends to occur. Moreover, even if the current evaluation and the previous evaluation are displayed in different modes in the same unit section, the display icons are the same size, and the current evaluation and the previous evaluation are displayed at the same position. When it is done, only one of them is visible. Therefore, if the current evaluation and past evaluation are displayed on the map in a distinguishable manner, even if the current evaluation and past evaluation are displayed in the same unit section, it is possible to clearly distinguish both. is there.

  FIG. 4B to FIG. 4E are diagrams illustrating an example of a configuration in which the current evaluation and the past evaluation are displayed on the map in a distinguishable manner, and FIG. 4B displays the current evaluation and the past evaluation for the same unit section. In this case, the current evaluation and the past evaluation are displayed at different positions on the map. That is, in FIG. 4B, the icon Etg of the current evaluation and the icon Epg of the previous evaluation are displayed in the unit interval Z. In the example shown in FIG. 4B, the icon Etg of the current evaluation is a solid line, the icon Epg of the previous evaluation. Are displayed in broken lines and have different modes, but they are the same size and therefore overlap when displayed at the same position. Therefore, as shown in FIG. 4B, even in the evaluation for the same unit section Z, the icon display is configured to be different between the current evaluation and the past evaluation. According to this configuration, even when the current evaluation and the past evaluation are displayed for the same unit section, it is possible to prevent the current evaluation and the past evaluation from being completely overlapped. It is possible to distinguish clearly from past evaluations.

  FIG. 4C is a configuration in which the current evaluation and the past evaluation are displayed with the same shape and different size on the same unit section of the map, and when the icons overlap, the smaller icon is displayed on the overlapping portion. Is shown. That is, also in FIG. 4C, the current evaluation icon Etg is displayed as a solid line in the unit interval Z, and the past evaluation icon Epg is displayed as a broken line. The evaluation icon Etg this time is a small icon and the past evaluation icon Epg is a large icon. Further, when the icon Etg for the current evaluation and the icon Epg for the previous evaluation overlap, the icon Etg for the current evaluation, which is a small icon, is displayed in the overlapping portion. As a result, the icon Epg of the current evaluation, which is a small icon, is displayed so as not to be hidden by the icon Epg of the past evaluation, which is a large icon. According to this configuration, all of the small icons and at least a part of the large icons can be displayed, and the current evaluation and the past evaluation can be clearly distinguished.

4D displays on the display unit of the user I / F unit 44 a first map indicating the current position and the vicinity of the current position, and a second map indicating the current position and the vicinity of the current position. In this configuration, the current evaluation is displayed on the first map and the past evaluation is displayed on the second map. That is, in the example shown in FIG. 4D, the first map M ₁ is displayed on the left side of the display unit of the user I / F unit 44, and the second map M ₂ is displayed on the right side. The current position C of the vehicle is displayed on each of the maps M ₁ and M ₂ . Since the current evaluation is displayed only in the section behind the current position C, the current evaluation is displayed in the section behind the current position C as shown by solid line icons Etg and Etb in the map M ₁ in FIG. 4D. . On the other hand, the past evaluation to be displayed for the front and rear sections of the current position C, dashed icon Epg map M ₂ in FIG. 4D, the past evaluation before and after the section of the current position C as shown by Epb is displayed. Accordingly, both the current evaluation and the past evaluation are displayed in the section behind the current position C, but the current evaluation and the past evaluation are displayed on different maps as shown in FIG. 4D. According to this configuration, even when the current evaluation and the past evaluation are displayed for the same unit section, it is possible to prevent the current evaluation and the past evaluation from being confused. It is possible to distinguish clearly.

  FIG. 4E shows a configuration in which the current evaluation is displayed on a map when the current evaluation and the previous evaluation are displayed for the same unit section, and the current evaluation is highlighted when the current evaluation and the past evaluation are different. . That is, when the current evaluation and the past evaluation are the same in each section, the current evaluation is displayed without being emphasized, and when the current evaluation and the past evaluation are different, the current evaluation is highlighted. According to this configuration, when the current evaluation is not emphasized, the driver can recognize that the current evaluation and the past evaluation are the same, and when the current evaluation is emphasized, the driver can recognize the current evaluation and the past evaluation. It can be recognized that the evaluation is different.

FIG. 4E shows an example in which the current evaluation is displayed in the unit intervals Z _{1 to} Z _{3. When} the current evaluation is “good” evaluation, an unhatched icon is displayed, and “bad” evaluation is displayed. In this case, an example of displaying a hatched icon is shown. Unemphasized icons are indicated by white icons, and emphasized icons are indicated by black icons. That is, in the example shown in FIG. 4E, since the icon Et ₁ shown in the unit section Z ₁ is a white and unhatched icon, the current evaluation and the past evaluation in the unit section Z ₁ are the same, and the “good” evaluation is performed. I understand that there is. Further, since the icon Et ₂ shown in the unit section Z ₂ is a black and unhatched icon, the current evaluation and the past evaluation in the unit section Z ₂ are different, the current evaluation is “good” evaluation, and the past evaluation is “ It is a “bad” evaluation, and it can be seen that the evaluation has improved. Further, since the icon Et ₃ shown in unit sections Z ₃ is an icon with a black and hatch, different current evaluations and the past evaluation in the unit sections Z _3, a current evaluation is "bad" evaluation, past evaluation " It is a “good” evaluation, and it can be seen that the evaluation deteriorated. Note that the above configuration is preferably applied to a configuration in which the current evaluation and the past evaluation are two-level evaluations, because the past evaluation when the current evaluation is emphasized is specified.

  DESCRIPTION OF SYMBOLS 10 ... Navigation terminal, 20 ... Control part, 21 ... Evaluation display program, 21a ... Map display control part, 21b ... Current evaluation acquisition part, 21c ... Past evaluation acquisition part, 30 ... Recording medium, 30a ... Map information, 30b ... Evaluation Information: 40 ... Fuel consumption evaluation lamp ECU, 40a ... Lamp, 41 ... GPS receiver, 42 ... Vehicle speed sensor, 43 ... Gyro sensor, 44 ... User I / F unit

Claims (16)

Map display control means for displaying a map around the current position along with the current position of the vehicle on the display unit;
A current evaluation acquisition means for acquiring a current evaluation indicating the evaluation of fuel consumption in the current traveling of the vehicle for each unit section;
Past evaluation acquisition means for acquiring a past evaluation indicating for each unit section an evaluation of fuel consumption of the vehicle in the past from the current traveling,
The map display control means, wherein the current ratings displayed for each of the unit sections in the path of the vehicle in the travel direction backwards from the current position of the vehicle definitive on the map, the traveling direction than the current position of the vehicle evaluation display system for displaying the past evaluation in the path of the vehicle for each of the unit section in the front. The map display control means displays the current evaluation behind the current position of the vehicle in the traveling direction and the past evaluation ahead of the current position of the vehicle on the map in a different manner.
The evaluation display system according to claim 1.   The map display control means, when the current evaluation is obtained behind the current position of the vehicle in the direction of travel, obtains the past evaluation from the unit section on the route behind the current position of the vehicle. Erase and display the current evaluation,
The evaluation display system according to claim 1 or 2.   When the current evaluation is acquired behind the current position of the vehicle in the direction of travel, the map display control means, on the unit section on the route behind the current position of the vehicle, Display the evaluation and the current evaluation at different positions;
The evaluation display system according to claim 1 or 2.   When the current evaluation is acquired behind the current position of the vehicle in the direction of travel, the map display control means determines the past evaluation in the unit section on the route behind the current position of the vehicle. And the current evaluation are displayed at the same position,
The evaluation display system according to claim 1 or 2.   The current evaluation acquisition means acquires the current evaluation for a section from the departure place to the current position when the vehicle is traveling from the departure place to the destination,
  The past evaluation acquisition means acquires the past evaluation when the vehicle starts from the same point as the starting point in the past than the current driving and travels to the same point as the destination.
The evaluation display system in any one of Claims 1-5.   The current evaluation acquisition means acquires a current average fuel consumption indicating an average fuel consumption of the vehicle in the current travel,
  The past evaluation acquisition means acquires a past average fuel consumption indicating an average fuel consumption of the vehicle in the past from the current travel,
  The map display control means displays the current average fuel efficiency and the past average fuel efficiency together on the display unit.
The evaluation display system in any one of Claims 1-6.   The map display control means displays the current evaluation and the past evaluation on the map in a mode different from the traffic information displayed on the map.
The evaluation display system in any one of Claims 1-7.   The map display control means displays the current evaluation and the past evaluation at different positions on the map when the current evaluation and the past evaluation are displayed for the same unit section.
The evaluation display system according to claim 1.   When displaying the current evaluation and the past evaluation for the same unit section, the map display control means displays the current evaluation and the past evaluation with the same shape and different size icons on the same map. In addition to displaying on the unit section, if the icons overlap, the smaller icon is displayed in the overlapping part.
The evaluation display system according to claim 1.   The map display control means, when displaying the current evaluation and the past evaluation for the same unit section, a first map showing the current position and the periphery of the current position, the current position and the current A second map showing the vicinity of the position is displayed on the display unit, the current evaluation is displayed on the first map, and the past evaluation is displayed on the second map.
The evaluation display system according to claim 1.   The map display control means displays the current evaluation on the map when the current evaluation and the past evaluation are displayed for the same unit section, and when the current evaluation and the past evaluation are different from each other. Highlight the evaluation this time,
The evaluation display system according to claim 1.   The current evaluation acquisition means, when the power source of the vehicle is activated and then reaches the current position without being stopped, the position from the position where the power source is activated to the current position. Obtain the current evaluation for the section,
  The past evaluation acquisition means acquires the past evaluation before the time when the power source is activated.
The evaluation display system in any one of Claims 1-12.   The current evaluation acquisition means is a section from the position of the vehicle to the current position at the time designated by the user when the vehicle has reached the current position by traveling after the time designated by the user. Get the above evaluation about
  The past evaluation acquisition means acquires the past evaluation before the time designated by the user.
The evaluation display system in any one of Claims 1-13.   A map display control step in which the map display control means displays a map around the current position together with the current position of the vehicle on the display unit;
  A current evaluation acquisition step in which the current evaluation acquisition means acquires a current evaluation indicating, for each unit section, an evaluation of fuel consumption in the current travel of the vehicle;
  A past evaluation acquisition means for acquiring a past evaluation indicating, for each unit section, an evaluation of fuel consumption of the vehicle in the past from the current travel;
  In the map display control step, the map display control means displays the current evaluation for each unit section on the route of the vehicle behind the current position of the vehicle on the map in the traveling direction. An evaluation display method for displaying the past evaluation for each unit section on a route of the vehicle ahead of the current position in the traveling direction.   Computer
  Map display control means for displaying a map around the current position along with the current position of the vehicle on the display unit;
  A current evaluation acquisition means for acquiring a current evaluation indicating the evaluation of the fuel consumption in the current traveling of the vehicle for each unit section;
  While functioning as a past evaluation acquisition means for acquiring a past evaluation indicating for each unit section an evaluation of fuel consumption of the vehicle in the past than the current travel,
  The computer displays the current evaluation for each unit section on the route of the vehicle behind the current position of the vehicle on the map, and the vehicle ahead of the current position of the vehicle. An evaluation display program for functioning as the map display control means for displaying the past evaluation for each unit section on the route of.

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