JP2010175372A - Information display apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information display apparatus for making a user clearly recognize the consumption value of a self-vehicle depreciated by traveling. <P>SOLUTION: A CPU 41 sequentially reads both the type of a road of each link traveled within a prescribed distance and the distance traveled in each link from navigation map information for each traveled prescribed distance and computes the traveled distance for each type of the road such as a general road and an expressway. The CPU 41 reads a consumption value per one-kilometer travel for each type of the road of a travel consumption value table 62, multiplying the consumption value per one-kilometer travel for each type of road by each distance traveled for each type of road such as a general road and an expressway to compute the total amount of money, adding it to a consumption value V when actually traveling, and storing it in a RAM 42. The CPU 41 displays the consumption value V when actually traveling as a consumption value consumed by traveling on a display screen of a liquid crystal display 15. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an information display device that displays a consumption value of a vehicle depreciated by traveling.

Conventionally, various techniques for calculating and displaying the fuel cost consumed during traveling have been proposed.
For example, a fuel consumption display screen is displayed as a pop-up screen superimposed on the map, and the fuel cost of the fuel consumed for the vehicle traveling 1 km and a predetermined time (for example, the cumulative fuel cost value) are displayed on the fuel consumption display screen. There is a navigation device configured to display the accumulated fuel cost of fuel consumed from when it was reset (see, for example, Patent Document 1).

JP 2008-180576 A (paragraphs (0006) to (0041), FIGS. 1 to 6)

According to the navigation device described in Patent Document 1 described above, since the fuel cost of the fuel consumed to travel 1 km is displayed when the vehicle is traveling, the driver can drive with poor fuel efficiency. Can clearly recognize that this is a waste of money.
However, when the vehicle is running, not only the fuel cost but also the vehicle value of the vehicle itself (for example, the acquisition price of the vehicle, the inspection cost necessary to become a scrapped vehicle, the replacement cost of parts such as tires, taxes, etc.) Is also amortized at the same time for the amount of travel, but it is difficult for the user to clearly recognize the value of the vehicle that was traveled, that is, the consumption value of the vehicle that was amortized by traveling. There is a problem. Further, when a rough driving operation is performed, the consumption value of the host vehicle is amortized more than when a careful driving is performed. Further, the consumption value of the host vehicle varies greatly depending on the type of road on which the vehicle travels (for example, a general road or a highway). Furthermore, the consumption value of the host vehicle varies greatly depending on a predetermined driving environment in which the host vehicle travels (for example, an environment along the sea or below freezing).

  Accordingly, the present invention has been made to solve the above-described problems, and provides an information display device that enables a user to clearly recognize the consumption value of the host vehicle depreciated by traveling. The purpose is to do.

  In order to achieve the above object, an information display device according to claim 1 includes a travel distance detecting means for detecting a travel distance and a consumption value information storage for storing consumption value information relating to the consumption value of the host vehicle depreciated per unit travel distance. A consumption value calculating means for calculating the consumption value of the host vehicle depreciated by traveling based on the travel distance detected by the travel distance detection means and the consumption value information; and calculated by the consumption value calculation means Display means for displaying the consumption value of the subject vehicle.

  An information display device according to claim 2 is the information display device according to claim 1, wherein the map information storage means for storing the map information, the destination input means for inputting the destination, and the vehicle position are detected. A vehicle position detection unit that performs a search from the current vehicle position to the destination based on the map information, and a route distance acquisition that acquires a distance of the route searched by the route search unit. Consumption value estimation means for estimating the consumption value of the host vehicle to be depreciated by traveling on the route based on the route distance acquired by the route distance acquisition unit and the consumption value information, The display means displays the consumption value of the host vehicle estimated by the consumption value estimation means together with route information related to the route to the destination.

  An information display device according to claim 3 is the information display device according to claim 2, wherein the current vehicle from the start of travel is based on the travel distance detected by the travel distance detection means and the consumption value information. An actual driving consumption value calculating means for calculating the consumption value at the time of actual driving of the host vehicle depreciated up to the position, and when the display means starts traveling on the route, the display means together with the route during the actual traveling The consumption value at the time of actual driving of the host vehicle calculated by the consumption value calculation means is displayed.

  An information display device according to claim 4 is the information display device according to any one of claims 1 to 3, wherein driving information acquisition means for acquiring driving information related to a driving state of the host vehicle, and the driving information. Driving characteristic determination means for determining the driving characteristic of the driver based on the driving value, a plurality of types of the consumption value information are provided corresponding to the driving characteristic, and the consumption value calculation means is the driving characteristic The consumption value information corresponding to the driving characteristic determined by the determining means is selected.

  An information display device according to claim 5 is the information display device according to any one of claims 1 to 4, further comprising road type acquisition means for acquiring a road type of a road that has traveled, wherein the consumption value information Is provided for each road type, and the consumption value calculation means selects the consumption value information corresponding to the road type acquired by the road type acquisition means.

  An information display device according to a sixth aspect is the information display device according to any one of the first to fifth aspects, wherein the environmental information acquisition means acquires environmental information related to the travel environment, and the travel time in the travel environment. Travel time acquisition means for acquiring the environmental consumption value information storage means for storing environmental consumption value information related to the consumption value of the host vehicle depreciated per unit time in a predetermined traveling environment, the consumption value calculation means, Based on the traveling time in the predetermined traveling environment and the environmental consumption value information, the consumption value of the own vehicle depreciated in the predetermined traveling environment is calculated and added to the consumption value of the own vehicle depreciated by the traveling. It is characterized by that.

  Furthermore, the information display device according to claim 7 is the information display device according to any one of claims 1 to 6, wherein the fuel consumption detecting means for detecting the fuel consumption and the fuel for acquiring the fuel price are provided. And a fuel cost calculating means for calculating a fuel cost of fuel consumed from the start of travel based on the fuel consumption detected by the fuel consumption detecting means and the fuel price, and the display The means displays the total amount of the consumption value of the own vehicle calculated by the consumption value calculation means and the fuel cost calculated by the fuel cost calculation means.

  In the information display device according to claim 1 having the above-described configuration, the consumption value of the host vehicle depreciated by traveling can be displayed. Thereby, the user can clearly recognize the consumption value of the host vehicle depreciated by traveling.

  In the information display device according to claim 2, when a route from the vehicle position to the destination is searched, the consumption value of the own vehicle to be depreciated when traveling along this route is calculated together with the route information related to the route. Can be displayed. Thus, the user can clearly recognize the consumption value of the host vehicle that is depreciated when traveling on this route before traveling on the route, and can easily select the route. .

  In the information display device according to claim 3, when the travel of the searched route is started, the consumption value of the own vehicle depreciated from the start of travel to the current vehicle position can be displayed together with the route. it can. As a result, the user can clearly recognize the consumption value of the host vehicle that has been depreciated from the start of traveling on this route to the present.

  In the information display device according to claim 4, it is possible to display the consumption value of the host vehicle depreciated by traveling by selecting consumption value information corresponding to the driving characteristic determined by the driving characteristic determining means. It becomes. Thereby, it becomes possible to display the more accurate consumption value of the own vehicle in consideration of the driving characteristics of the user. In addition, the user can clearly know that the consumption value of the host vehicle increases when driving rough, and can make a careful drive.

  In the information display device according to the fifth aspect, it is possible to display the consumption value of the host vehicle depreciated by selecting the consumption value information corresponding to the type of road that has traveled and traveling. Thereby, the user can know the more accurate consumption value of the own vehicle depreciated by traveling.

  Further, in the information display device according to claim 6, the consumption value of the host vehicle depreciated by traveling the consumption value of the host vehicle due to the influence of a predetermined traveling environment (for example, the environment along the sea or below freezing point). It becomes possible to add and display the value. Thereby, the user can know the exact consumption value of the own vehicle depreciated by traveling in a predetermined traveling environment (for example, an environment along the sea or below freezing point).

  Furthermore, the information display device according to claim 7 can display the total amount of the fuel cost and the consumption value of the host vehicle depreciated by traveling. Accordingly, the user can clearly know the total amount of the fuel cost and the consumption value of the host vehicle depreciated by traveling, and tries to drive with good fuel efficiency as well as careful driving.

It is the block diagram which showed the navigation apparatus which concerns on a present Example. It is a figure which shows an example of the vehicle value table memorize | stored in vehicle value information DB. It is a figure which shows an example of the driving | running consumption value table memorize | stored in consumption value information DB. It is a figure which shows an example of the environmental consumption value table memorize | stored in consumption value information DB. It is a flowchart which shows the "expected consumption value display process" which displays the consumption value of the own vehicle depreciated by driving | running the searched recommended route before driving | running | working. It is a figure which shows an example which displayed the consumption value of the own vehicle depreciated by drive | working a recommended path | route. It is a flowchart which shows the "consumption value display process at the time of route driving | running | working" which displays the consumption value of the own vehicle depreciated by driving | running | working from a departure place to the own vehicle position at the time of driving | running | working a recommended route. It is a figure which shows an example which displayed the consumption value of the own vehicle depreciated by actually drive | working from a departure place to the own vehicle position. It is a figure which shows an example which displayed the "consumption gasoline cost", "high-speed fee", "consumption value", and "total amount" which were consumed by drive | working from the departure place to the destination. It is a flowchart which shows the "normal consumption value display process" which displays the consumption value of the own vehicle depreciated by driving | running | working, when driving | running | working is started without performing a route search.

  Hereinafter, an information display device according to the present invention will be described in detail with reference to the drawings based on an embodiment in which a navigation device is embodied.

[Schematic configuration of navigation device]
First, a schematic configuration of the navigation device 1 according to the present embodiment will be described with reference to FIG. FIG. 1 is a block diagram showing a navigation device 1 according to the present embodiment.
As shown in FIG. 1, the navigation apparatus 1 according to the present embodiment includes a current position detection unit 11 that detects a current position of the own vehicle (hereinafter referred to as “own vehicle position”), and data in which various data are recorded. A recording unit 12, a navigation control unit 13 that performs various arithmetic processes based on the input information, an operation unit 14 that receives operations from an operator, and a liquid crystal that displays information such as a map to the operator A display (LCD) 15, a speaker 16 for outputting voice guidance related to route guidance and the like, and a communication device 17 for communicating with a road traffic information center, an information distribution center, etc. (not shown) via a mobile phone network, etc. It is composed of

  Further, the navigation control unit 13 includes a vehicle speed sensor 21 that detects the traveling speed of the host vehicle, a remaining fuel detection sensor 51 that detects the remaining amount of fuel of the host vehicle, and an operation amount when the driver operates the accelerator. An accelerator sensor 52 that detects (accelerator opening), a steering sensor 53 that detects a steering angle when the driver operates the steering wheel, and a brake sensor 54 that detects a torque value when the driver operates the brake A temperature sensor 55 that detects the temperature of the traveling environment of the host vehicle is connected.

  The navigation control unit 13 is connected to an engine ECU (Electronic Control Unit) 56. The engine ECU 56 performs fuel injection control, ignition timing control, and the like to control the vehicle engine. Further, the engine ECU 56 outputs fuel injection amount data used when fuel is injected to the navigation control unit 13. This fuel injection amount can be calculated from the fuel injection time.

  Hereinafter, each component constituting the navigation device 1 will be described. The current location detection unit 11 includes a GPS 31, a direction sensor 32, a distance sensor 33, and the like, and includes a vehicle position, a vehicle direction indicating the direction of the vehicle, and travel. It is possible to detect distances and the like.

  The data recording unit 12 includes an external storage device and a hard disk (not shown) as a recording medium, a map information database (map information DB) 25 and a vehicle value information database (vehicle value information DB) 26 stored in the hard disk. , A consumption value information database (consumption value information DB) 27, a travel history database (travel history DB) 28, and a recording head (not shown) which is a driver for reading predetermined programs and writing predetermined data to the hard disk And.

  The map information DB 25 stores navigation map information used for travel guidance and route search of the navigation device 1. Here, the navigation map information is composed of various information necessary for route guidance and map display, for example, new road information for identifying each new road, map display data for displaying a map, each intersection To search for intersection data, node data related to node points, link data related to roads (links), search data for searching for routes, store data related to POI (Point of Interest) such as stores that are a type of facility, and points Search data, monthly average temperature for each area, and the like. Further, the contents of the map information DB 25 are updated by downloading update information distributed from an information distribution center (not shown) via the communication device 17.

In addition, as link data, the travel time of the link, the width of the road to which the link belongs, the gradient, the cant, the bank, the road surface state, the number of road lanes, and the number of lanes are reduced for each link constituting the road. The data representing the location, the width-decreasing location, the level crossing, etc., for the corner, the data representing the radius of curvature, the intersection, the T-junction, the entrance and the exit of the corner, etc. Regarding the road type, in addition to general roads such as national roads, prefectural roads and narrow streets, data representing toll roads such as national highways, urban highways, general toll roads, and toll bridges are recorded. Furthermore, regarding toll roads, data relating to entrance roads (rampways), toll gates (interchanges), tolls, etc. of toll roads are recorded.
In the following, toll roads such as highway national highways, city highways, automobile exclusive roads, and general toll roads are referred to as toll roads. One-digit or two-digit national roads excluding toll roads, three-digit or more national roads, major local roads, prefectural roads, municipal roads, etc. are called general roads.

  The vehicle value information DB 26 stores a vehicle value table 61 (see FIG. 2), which will be described later, created from the vehicle acquisition price, vehicle life, vehicle inspection cost, replacement parts cost, etc., input via the operation unit 14. ing. The vehicle value table 61 is updated via the operation unit 14. For example, when the vehicle cost increases, the vehicle value table 61 is updated by inputting the increased vehicle cost through the operation unit 14.

  In the consumption value information DB 27, the own vehicle depreciated per unit travel distance calculated based on the vehicle value (vehicle depreciation amount) depreciated until the vehicle life of the own vehicle stored in the vehicle value table 61 is reached. The travel consumption value table 62, which will be described later, is stored for each road type and each driving characteristic. Further, the travel consumption value table 62 is updated as the vehicle value table 61 is updated, as will be described later.

  Further, the consumption value information DB 27 stores a predetermined traveling environment (for example, along the seaside or calculated based on the vehicle value (vehicle depreciation amount) depreciated until the vehicle life of the host vehicle stored in the vehicle value table 61 is reached. An environment consumption value table 63 is stored which stores the consumption value to be depreciated per unit traveling time due to the influence of the influence of each other for each traveling environment. Further, the environmental consumption value table 63 is updated as the vehicle value table 61 is updated, as will be described later.

  The travel history DB 28 also depreciates the travel date and time, departure location, destination, travel route, fuel consumption, travel distance, fuel price per liter, travel price from the departure location to the destination. Information on past travel history, such as the consumption value of the subject vehicle, the number of accelerator openings above the threshold, the number of sudden brakings above the threshold, the number of sudden handles above the threshold, etc. are stored in time series for each travel route ing. The fuel price per liter is input via the operation unit 14 for each refueling and updated and stored in the data recording unit 12.

  In addition, the navigation control unit 13 constituting the navigation device 1 is used as a working memory when the CPU 41 as an arithmetic device and a control device for controlling the entire navigation device 1 and the CPU 41 perform various arithmetic processes. RAM 42 for storing route data when a route is searched, ROM 43 for storing control programs, etc., internal memory such as flash memory 44 for storing programs read from ROM 43, etc., and measuring time A timer 45 and the like are provided.

  Further, the ROM 43 stores a program of “expected consumption value display processing” (see FIG. 5) for displaying the consumption value of the host vehicle depreciated by traveling on the searched route described later before traveling. In addition, the ROM 43 sequentially displays the consumption value of the host vehicle depreciated by actually traveling from the start of travel to the current position when actually traveling on the searched route. Is stored (see FIG. 7). Further, the ROM 43 displays the normal consumption value display process for displaying the consumption value of the host vehicle depreciated by traveling from the start of traveling to the destination when traveling without performing a route search when the vehicle arrives at the destination. Is stored (see FIG. 10).

Furthermore, the navigation control unit 13 is connected to peripheral devices such as an operation unit 14, a liquid crystal display (LCD) 15, a speaker 16, and a communication device 17.
The communication device 17 is a communication means such as a mobile phone network that communicates with an information distribution center (not shown), and transmits / receives updated map information and the like of the newest version with the information distribution center. Further, in addition to the information distribution center (not shown), the communication device 17 receives traffic information composed of information such as traffic congestion information transmitted from a road traffic information center and the like, congestion status of service areas, and the like.

[Vehicle Value Table]
Next, an example of the vehicle value table 61 stored in the vehicle value information DB 26 will be described with reference to FIG. FIG. 2 is a diagram showing an example of the vehicle value table 61 stored in the vehicle value information DB 26.

  As shown in FIG. 2, the vehicle value table 61 includes a “vehicle price” representing the acquisition price of the own vehicle, an “annual travel distance” representing the average travel distance traveled in one year, and the vehicle life of the own vehicle. "Vehicle life" indicating the travel distance traveled by the time (for example, travel distance traveled for 10 years), vehicle inspection costs necessary for maintaining the vehicle for one year, parts replacement costs for tires, etc., insurance It consists of “annual maintenance costs” representing maintenance costs such as costs and taxes, and “vehicle depreciation amounts” representing the amount invested in the vehicle until the vehicle life is reached.

  In addition, the “vehicle price”, “annual travel distance”, “vehicle life”, and “annual maintenance cost” in the vehicle value table 61 are entered by the user inputting their respective amounts or travel distances via the operation unit 14. Updated. Further, the “vehicle depreciation amount” in the vehicle value table 61 is updated by the CPU 41 of the navigation control unit 13. Specifically, the CPU 41 first calculates the life years until the vehicle life is reached by dividing the “vehicle life” by the “annual travel distance”. Subsequently, the CPU 41 adds the amount of the “vehicle price” to the amount obtained by multiplying the number of years of life by the “annual maintenance cost” and stores it in the vehicle value table 61 as the “vehicle depreciation amount”.

[Running consumption value table]
Next, an example of the travel consumption value table 62 stored in the consumption value information DB 27 and storing the consumption value of the host vehicle depreciated per unit travel distance for each road type and for each driving characteristic is shown in FIG. I will explain. FIG. 3 is a diagram showing an example of the travel consumption value table 62 stored in the consumption value information DB 27.

As shown in FIG. 3, the travel consumption value table 62 includes a “road type” that represents the type of road that is running, a “driving characteristic” that represents the driving characteristics of the driver corresponding to each “road type”, and It consists of “consumption value per 1 km running” that represents the consumption value of the host vehicle that is depreciated every 1 km running corresponding to each “driving characteristic”.
This “road type” stores “general roads” representing national roads, major local roads, prefectural roads, municipal roads, etc., “highways” representing national highways, urban highways, exclusive roads, etc. .

  In the “driving characteristics”, “ordinary degree of accelerator opening, sudden braking, and sudden steering that are equal to or higher than a threshold value is normal (for example, once or twice per 100 drivings in the past). ”,“ Rough ”indicating that the frequency of accelerator opening, sudden braking, and sudden steering is greater than the threshold (for example, 3 or more per 100 drivings in the past), and accelerator opening exceeding the threshold, “Polite” indicating that the frequency of sudden braking and sudden steering is low (for example, less than 1 in the past 100 runs, that is, 0 times) is stored. The “operating characteristics” may be ranked not only in three stages but also in four or more stages.

Further, the “consumption value per 1 km travel” is calculated and stored by the CPU 41 of the navigation control unit 13 based on the “vehicle life” and the “vehicle depreciation amount” stored in the vehicle value table 61.
Specifically, for example, the CPU 41 reads “vehicle life” and “vehicle depreciation amount” from the vehicle value table 61, and calculates a value obtained by dividing this “vehicle depreciation amount” by “vehicle life” as a travel consumption value table. 62 is stored as the amount of “consumption value per 1 km run” corresponding to “road type” of “general road” and “driving characteristic” of “normal”.

  Further, the CPU 41 sets a predetermined first coefficient (this implementation) to the amount of “consumption value per 1 km travel” corresponding to “road type” in the travel consumption value table 62 “normal road” and “driving characteristic” “normal”. In the example, it is 1.1.) And is stored as an amount of “consumption value per 1 km travel” corresponding to “road type” being “general road” and “driving characteristic” being “rough”. In addition, the CPU 41 sets a predetermined second coefficient (this implementation) to the amount of “consumption value per 1 km travel” in which “road type” in the travel consumption value table 62 corresponds to “general road” and “driving characteristic” is “normal”. In the example, it is 0.9.) And is stored as an amount of “consumption value per 1 km travel” corresponding to “road type” being “general road” and “driving characteristic” being “careful”.

  In addition, the CPU 41 sets a predetermined third coefficient (in this embodiment, in the value of “consumption value per 1 km travel”) corresponding to each “driving characteristic” of “road type” in the travel consumption value table 62 “general road”. And is stored as an amount of “consumption value per 1 km travel” corresponding to each “driving characteristic” of “highway type”. The predetermined first coefficient, the predetermined second coefficient, and the predetermined third coefficient are stored in the ROM 43 in advance.

  That is, the CPU 41 sets the “consumption value per 1 km travel” when the driving characteristics are “rough” to be larger than the “consumption value per 1 km travel” when the driving characteristics are “normal”. Further, the CPU 41 sets “consumption value per 1 km travel” when the driving characteristics are “poor” so as to be smaller than “consumption value per 1 km travel” when the driving characteristics are “normal”. Further, the CPU 41 sets the “consumption value per 1 km travel” when traveling on the “highway” to be smaller than the “consumption value per 1 km travel” when traveling on the “general road”.

[Environmental Expenses Value Table]
Next, an example of the environmental consumption value table 63 stored in the consumption value information DB 27 will be described with reference to FIG. FIG. 4 is a diagram showing an example of the environmental consumption value table 63 stored in the consumption value information DB 27.

As shown in FIG. 4, the environmental consumption value table 63 represents a “traveling environment” that represents the traveling environment of the host vehicle, and a consumption value of the host vehicle that is depreciated every time the vehicle travels for one minute corresponding to each “running environment”. It consists of “consumed value per one minute run”.
The “running environment” stores “by the sea” representing traveling along the coast, “below freezing” representing traveling in a cold region such as a heavy snow region, “desert” representing traveling in the desert, and the like.

  In addition, the “consumed value per one minute of travel” includes the “vehicle depreciation amount” stored in the vehicle value table 61 for the vehicle life in each “travel environment” (in this embodiment, the vehicle life is 5 years). The amount of money per minute divided by. The vehicle life in each “travel environment” may be varied.

[Expected consumption value display processing]
Next, a process executed by the CPU 41 of the navigation device 1 configured as described above, which displays the consumption value of the host vehicle depreciated by traveling on the searched recommended route before traveling. The “display process” will be described with reference to FIGS.

  FIG. 5 is a flowchart showing an “expected consumption value display process” for displaying the consumption value of the host vehicle depreciated by traveling on the recommended route searched before traveling. 5 is stored in the ROM 43 provided in the navigation control unit 13, and is executed by the CPU 41 when a destination is set by an input operation of the operation unit 14 or the like. .

  As shown in FIG. 5, first, in step (hereinafter abbreviated as “S”) 11, the CPU 41 detects the vehicle position and the vehicle direction using the current position detection unit 11, and represents coordinate data (for example, the vehicle position). , Latitude and longitude data) and the vehicle direction is stored in the RAM 42. And CPU41 performs the route search from the own vehicle position to the destination memorize | stored in RAM42 based on the navigation map information stored in map information DB25, for example by the Dijkstra method. Then, the CPU 41 stores the route searched from the vehicle position to the destination as a recommended route in the RAM 42 and displays the recommended route on the liquid crystal display 15.

  In S12, the CPU 41 reads the recommended route from the RAM 42, calculates the distance from the departure point of the recommended route to the destination based on the navigation map information stored in the map information DB 25, and stores it in the RAM 42. Then, the CPU 41 reads the fuel consumption amount and travel distance at the previous travel from the travel history DB 28 and reads the fuel price per liter from the data recording unit 12 and calculates the expected fuel consumption (yen / km) per 1 km travel. And stored in the RAM 42.

  Then, the CPU 41 stores the amount obtained by multiplying the distance from the departure point of the recommended route to the destination by the estimated fuel consumption per 1 km travel (yen / km) in the RAM 42 as an “expected fuel cost”. Further, the CPU 41 reads out a recommended route from the RAM 42 and, based on the navigation map information stored in the map information DB 25, if there is a toll road such as a highway national highway or a city expressway on the recommended route, the toll road Are stored in the RAM 42 as “expected tolls”.

Subsequently, in S13, the CPU 41 determines whether or not a travel history that travels the same route as the recommended route searched in S11 is stored in the travel history DB 28, that is, a route that the recommended route has passed in the past. A determination process is performed to determine whether or not. In addition, you may make it determine whether the driving | running | working log | history which drive | worked the same path | route as the recommended path | route in the same season (for example, it is winter or December-March etc.) is stored in driving | running history DB28. .
If it is determined that the travel history that travels the same route as the recommended route is stored in the travel history DB 28 (S13: YES), the CPU 41 proceeds to the process of S14.

  In S <b> 14, the CPU 41 depreciated by the travel from the departure place to the destination included in the latest travel history data among the travel history data that traveled the same route as the recommended route stored in the travel history DB 28. The “consumption value of own vehicle” is read out, stored in the RAM 42 as the “expected consumption value” of the own vehicle to be depreciated when traveling on the recommended route, and the process proceeds to S21 described later.

  On the other hand, when it is determined that the travel history that travels the same route as the recommended route is not stored in the travel history DB 28 (S13: NO), the CPU 41 proceeds to the process of S15. In S15, the CPU 41 determines whether or not driving characteristic history data equal to or greater than a predetermined number of times of travel (for example, the number of times of travel is equal to or greater than 100) is stored in the travel history DB 28, that is, travels equal to or greater than the predetermined number of times of travel. A determination process for determining whether or not information related to the history is stored is executed.

  And when it determines with the driving | running characteristic log | history data more than the predetermined driving | running number of times being memorize | stored in driving | running | working log | history DB28 (S15: YES), CPU41 transfers to the process of S16. In S <b> 16, the CPU 41 calculates the total number of times of accelerator opening, sudden braking, and sudden steering that are equal to or greater than a threshold value included in each traveling history of the latest predetermined traveling count stored in the traveling history DB 28. Then, the CPU 41 determines the driving characteristics of the driver from the total number of accelerator openings, sudden brakes, and sudden handles that are equal to or greater than the threshold value, and stores them in the RAM 42 before proceeding to S18.

  For example, when the total number of accelerator openings, sudden brakes, and sudden handles equal to or greater than the threshold is once or twice per 100 travels, the CPU 41 determines the driving characteristics of the driver as “normal”. Further, when the total number of accelerator openings, sudden brakes, and sudden handles exceeding the threshold is 3 or more per 100 travels, the CPU 41 determines the driving characteristics of the driver as “rough”. Further, when the total number of accelerator openings, sudden brakes, and sudden handles exceeding the threshold is less than once per 100 travels in the past, that is, 0 times, the CPU 41 makes the driving characteristics of the driver “polite”. decide.

  On the other hand, if it is determined that driving characteristic history data equal to or greater than the predetermined number of times of travel is not stored in the travel history DB 28 (S15: NO), the CPU 41 proceeds to the process of S17. In S17, the CPU 41 determines that the driving characteristic of the driver is “normal”, stores it in the RAM 42, and then proceeds to the process of S18.

  In S18, the CPU 41 sequentially reads the “road type” and “link length” of each link from the departure point to the destination of the recommended route searched in S11 above from the navigation map information in the map information DB 25, and the recommended route in general. The travel distance for each road type such as a road or an expressway is calculated. Then, the CPU 41 reads the driving characteristics of the driver from the RAM 42, and reads “consumption value per 1 km travel” for each road type as the “driving characteristics” of the travel consumption value table 62.

  Then, the CPU 41 calculates the total amount by multiplying the “consumption value per 1 km travel” for each road type by the travel distance for each road type such as a general road or a highway on the recommended route, and calculates the recommended amount. It is stored in the RAM 42 as the “expected consumption value” of the host vehicle that is depreciated when traveling on the route. For example, when the driving characteristic is “normal” and the travel distances of the recommended general road and highway are 25 km and 50 km, the CPU 41 calculates 25 × 45.0 + 50 × 36.0 = 2925 (yen) It is stored in the RAM 42 as the “expected consumption value” of the host vehicle that is depreciated when traveling on the recommended route.

  Subsequently, in S19, the CPU 41 sequentially reads out “link travel time” of each link along the coast from the navigation map information in the map information DB 25 among the links from the departure point to the destination of the recommended route. Add up and calculate the “travel time” for the seaside section. Then, the CPU 41 reads the “consumption value per one minute of travel” corresponding to the “running environment” corresponding to “along the sea” from the environmental consumption value table 63, and multiplies it by the “travel time” of the seaside section to Calculate the "consumption value of the section along the sea" of the vehicle depreciated by traveling along the section.

  Then, the CPU 41 reads out the “expected consumption value” of the own vehicle to be depreciated when traveling on the recommended route from the RAM 42, adds this “consumption value of the section along the sea”, and travels again on the recommended route. It is stored in the RAM 42 as the “expected consumption value” of the own vehicle to be amortized. For example, when 20 minutes of the travel time of the recommended route is a section along the sea, the CPU 41 calculates “20 × 1.7 + 2925 = 2959 (yen)” of the own vehicle to be amortized when traveling on the recommended route. As “consumed value”, it is stored in the RAM 42 again.

  In S20, the CPU 41 obtains the “link travel time” of each link in the area where the current average temperature is below freezing point from the start point of the recommended route to the destination in the map information DB 25. The navigation map information is sequentially read and summed up to calculate the “travel time” for the section below freezing point. Then, the CPU 41 reads the “consumption value per one minute run” corresponding to the “running environment” corresponding to “below freezing” from the environmental consumption value table 63, and multiplies it by the “travel time” of the freezing point to obtain a section below freezing point. The “consumption value in the sub-freezing section” of the own vehicle that is depreciated by traveling is calculated.

  Then, the CPU 41 reads out the “expected consumption value” of the own vehicle to be depreciated when traveling on the recommended route from the RAM 42, adds this “consumption value of below-freezing section”, and depreciates again when traveling on the recommended route. It is stored in the RAM 42 as the “expected consumption value” of the own vehicle. For example, if all sections of the recommended route are below freezing and the total travel time (required time) is 72 minutes, the CPU 41 depreciates 72 × 1.7 + 2959 = 3081.4 (yen) when traveling along the recommended route. This is stored in the RAM 42 again as the “expected consumption value” of the own vehicle.

  Subsequently, in S21, the CPU 41 displays all the recommended routes on the map of the display screen of the liquid crystal display 15 with a blue thick line or the like, and presents them as a guide route. Further, the CPU 41 displays on the display screen of the liquid crystal display 15 the expected required time from the departure point to the destination of the recommended route, the travel distance, and the like. Further, the CPU 41 reads out the “expected fuel cost”, “expected toll fee” necessary for traveling on the recommended route, and “expected consumption value” of the own vehicle to be amortized when traveling on the recommended route, The total amount of these is calculated. Then, the CPU 41 displays this “expected fuel cost”, “expected toll”, “expected consumption value”, and the total amount on the display screen of the liquid crystal display 15 and then ends the processing.

  Here, an example in which the “expected fuel cost”, “expected toll”, “expected consumption value”, and total amount are displayed on the display screen of the liquid crystal display 15 will be described with reference to FIG. FIG. 6 is a diagram showing an example in which the predicted consumption value of the host vehicle depreciated by traveling on the recommended route is displayed.

  As shown in FIG. 6, the CPU 41 displays all the recommended routes 71 on the map of the display screen of the liquid crystal display 15 with a blue thick line. Further, the CPU 41 displays the estimated required time “72 minutes” from the departure point to the destination of the recommended route 71 and the travel distance “75 km” in the upper left square frame 72 of the display screen.

  Further, the CPU 41 reads “600 yen” as the “expected fuel cost”, “250 yen” as the “expected toll”, and “3081.4 yen” as the “expected consumption value” from the RAM 42, and totals these. The amount of money “3931.4 yen” is calculated. Then, the CPU 41 displays each amount as “gasoline fee”, “high-speed fee”, “consumed value”, and “total amount” in the balloon 73 on the display screen.

Accordingly, when the CPU 41 searches for a route from the vehicle position to the destination by executing the processes of S11 to S21, the recommended route and the estimated required time from the starting point to the destination of the recommended route. , Mileage, “expected fuel cost” and “expected toll” required to travel along the recommended route, as well as “expected consumption value” of the vehicle to be amortized when traveling on this recommended route be able to.
This allows the user to clarify not only the gasoline fee and high-speed fee that are required when traveling on the recommended route, but also the consumption value of the vehicle amortized when traveling on the recommended route before traveling on the recommended route. Can be recognized.

Further, the CPU 41 may determine the driving characteristics of the driver based on the driving history stored in the driving history DB 28, and calculate the “expected consumption value” of the host vehicle to be depreciated when traveling on this recommended route. It is possible to calculate and display an accurate “expected consumption value”.
Further, when traveling in a section along the sea or a section below freezing, the CPU 41 can display the consumption value of the host vehicle due to the influence of each section in addition to the “expected consumption value”. Thereby, the user can know a more accurate predicted consumption value of the host vehicle that is depreciated by traveling along a seaside section or a section below freezing point.

[Consumption value display processing when driving on recommended route]
Next, a process executed by the CPU 41 of the navigation device 1, which displays the consumption value of the host vehicle depreciated by traveling from the departure point to the host vehicle position when traveling on the recommended route searched in S <b> 11. The “consumption value display process during travel” will be described with reference to FIGS. FIG. 7 is a flowchart showing a “consumption value display process during route travel” for displaying the consumption value of the host vehicle depreciated by traveling from the departure place to the vehicle position when traveling on the recommended route.

  Note that the program shown in the flowchart of FIG. 7 is stored in the ROM 43 provided in the navigation control unit 13, and is executed by the CPU 41 when the travel of the recommended route is started. Further, the CPU 41 acquires fuel injection amount data from the engine ECU 56 every predetermined time (for example, about every 1 second).

  As shown in FIG. 7, first, in S111, the CPU 41 reads from the RAM 42 “fuel cost W during actual travel”, “toll T during actual travel”, and “consumption value V during actual travel”, respectively. “0” is substituted into and stored in the RAM 42 again. That is, the CPU 41 initializes “the fuel cost W during actual travel”, “the toll T during actual travel”, and “the consumption value V during actual travel”.

  Subsequently, in S <b> 112, the CPU 41 starts measuring the “travel distance L” of the host vehicle by the distance sensor 33 and starts to accumulate the fuel injection amount acquired from the engine ECU 56. Further, the CPU 41 starts measuring the “traveling time S” via the timer 45. Further, the CPU 41 starts measuring the temperature of the traveling environment via the temperature sensor 55. Further, the CPU 41 starts detecting the number of times of accelerator opening equal to or greater than the threshold, the number of sudden brakes greater than or equal to the threshold, and the number of sudden handles greater than or equal to the threshold via the accelerator sensor 52, the steering sensor 53, and the brake sensor 54.

  Then, the CPU 41 waits for the travel distance L to reach a certain distance (for example, about 1 km) (S112: NO). When the travel distance L reaches a certain distance (for example, about 1 km) (S112: YES), the CPU 41 proceeds to the process of S113.

  In S113, the CPU 41 sets the total fuel injection amount acquired from the engine ECU 56 as the fuel consumption amount consumed for traveling the predetermined distance. Then, the CPU 41 reads the fuel price per liter from the data recording unit 12 and multiplies the fuel consumption by the fuel consumption amount to calculate the “fuel cost for traveling a certain distance”. Then, the CPU 41 reads the “fuel cost W during actual travel” from the RAM 42, adds the “fuel cost during travel of a certain distance” to the “fuel cost W during actual travel”, and stores it in the RAM 42 again. To do.

  Further, the CPU 41 determines whether or not the vehicle has passed a toll gate of a toll road such as a highway national highway or a city highway during the predetermined distance based on the own vehicle position and the navigation map information stored in the map information DB 28. If the toll road passes through the toll gate, the “toll” of the toll road is read from the navigation map information. Then, the CPU 41 reads “the toll T for actual driving” from the RAM 42, adds the “toll for toll T for actual driving” to the “toll for the toll road”, and stores it again in the RAM 42.

  In S114, the CPU 41 sequentially reads the “road type” of each link that has traveled within the certain distance and the distance traveled for each link from the navigation map information in the map information DB 25, and roads such as general roads and expressways The travel distance for each type is calculated. Further, the CPU 41 reads out the driving characteristics of the driver determined in S15 to S17 from the RAM 42, and uses the driving characteristics as the “driving characteristics” in the travel consumption value table 62 to obtain “consumption value per 1 km travel” for each road type. read out.

  Then, the CPU 41 calculates the total amount by multiplying the “consumption value per 1 km travel” for each road type by each travel distance for each road type such as a general road, an expressway, etc. "Time consumption value V" is read out, and the total amount is added to this "consumption value V during actual driving" and stored in the RAM 42 again. For example, when the driving characteristic is “normal” and the vehicle has traveled for 1 km on a general road, the CPU 41 adds 1 × 45.0 = 45.0 (yen) to the “consumption value V during actual travel” to the RAM 42. To remember.

Subsequently, in S115, the CPU 41 detects the position of the vehicle through the current location detection unit, and determines whether or not the vehicle has traveled in a section along the sea. And when it is not drive | working the area along the sea, it transfers to the process of S116.
On the other hand, when the vehicle travels in the section along the sea, the CPU 41 reads out the “traveling time S” of the certain distance from the RAM 42 from the RAM 42, and the “traveling environment” corresponds to “along the sea” from the environmental consumption value table 63. Read “consumption value per one minute of driving”. Then, the CPU 41 multiplies the “travel time S” by the “consumption value per one minute of travel” to calculate the “consumption value of the coastal section” of the own vehicle depreciated by traveling in the section along the sea. To do.

  Then, the CPU 41 reads the “consumption value V during actual driving” from the RAM 42, adds this “consumption value of the section along the sea”, stores it again in the RAM 42, and then proceeds to the processing of S116. For example, when the “travel time S” is “1 minute”, the CPU 41 adds 1 × 1.7 = 1.7 (yen) to the “consumption value V during actual travel” and stores it in the RAM 42. .

Subsequently, in S116, the CPU 41 obtains the temperature detected by the temperature sensor 55, and determines whether or not the traveling environment is below freezing, that is, whether or not the vehicle travels below the freezing point. If the traveling environment is not below freezing, the CPU 41 proceeds to the process of S117.
On the other hand, when the vehicle travels in a section below freezing point, the CPU 41 reads out the “traveling time S” of the predetermined distance from the RAM 42 from the RAM 42 and “running environment” from the environmental consumption value table 63 corresponds to “below freezing point”. Read "consumed value per one minute run". Then, the CPU 41 multiplies the “travel time S” by the “consumption value per one minute of travel” to calculate the “consumption value of the sub-freezing section” of the host vehicle depreciated by traveling in the sub-freezing section.

  Then, the CPU 41 reads the “consumption value V during actual driving” from the RAM 42, adds this “consumption value in the section below freezing point”, stores it again in the RAM 42, and then proceeds to the processing of S117. For example, when the “travel time S” is “1 minute”, the CPU 41 adds 1 × 1.7 = 1.7 (yen) to the “consumption value V during actual travel” and stores it in the RAM 42. .

  Subsequently, in S117, the CPU 41 reads out the “expected fuel cost” stored in the RAM 42 in S12 and the “fuel cost W during actual travel” stored in the RAM 42 in S113. Then, the CPU 41 calculates an amount obtained by subtracting the “fuel cost W during actual travel” from the “expected fuel cost”, and stores it again in the RAM 42 as the “expected fuel cost”. That is, the CPU 41 stores the “expected fuel cost” in the remaining section from the vehicle position to the destination in the RAM 42 again.

  Further, the CPU 41 reads out the “predicted toll” stored in the RAM 42 in S12 and the “toll T during actual travel” stored in the RAM 42 in S113. Then, the CPU 41 calculates an amount obtained by subtracting “the toll T at the time of actual travel” from the “estimated toll” and stores it again in the RAM 42 as the “estimated toll”. That is, the CPU 41 stores the “predicted toll” for the remaining section from the vehicle position to the destination in the RAM 42 again.

  Further, the CPU 41 reads out the “expected consumption value” calculated in S18 to S20 and stored in the RAM 42 and the “consumption value V during actual travel” calculated in S114 to S116 and stored in the RAM 42. Then, the CPU 41 calculates an amount obtained by subtracting the “consumption value V during actual driving” from the “expected consumption value”, and stores it in the RAM 42 again as the “expected consumption value”. That is, the CPU 41 stores the “expected consumption value” of the remaining section from the vehicle position to the destination in the RAM 42 again.

  In S118, the CPU 41 displays the recommended route searched in S11 on the map on the display screen of the liquid crystal display 15 with a blue thick line or the like, and also displays a vehicle position mark indicating the vehicle position. Further, the CPU 41 reads from the RAM 42 the “fuel cost W during actual travel”, “the toll T during actual travel”, and “the consumption value V during actual travel” of the section traveled from the departure place to the vehicle position, The “total amount during actual driving” is calculated by adding these up. Then, the CPU 41 displays the “fuel cost W during actual travel”, “the toll T during actual travel”, “consumption value V during actual travel”, and “total amount during actual travel” on the liquid crystal display 15. Display on the screen.

  Further, the CPU 41 reads the “predicted fuel cost”, “predicted toll” and “predicted consumption value” of the remaining section from the vehicle position to the destination from the RAM 42, and calculates the “predicted total amount” by summing them. . Then, the CPU 41 displays the “expected fuel cost”, “expected toll”, “expected consumption value”, and “expected total amount” on the display screen of the liquid crystal display 15.

  Here, the “fuel cost W during actual driving”, “traffic charge T during actual driving”, “consumption value V during actual driving”, and “total during actual driving” for the section traveled from the departure place to the vehicle position An example of displaying the “Amount” and the “Expected Fuel Cost”, “Estimated Toll”, “Estimated Consumption Value” and “Estimated Total Amount” of the remaining section from the vehicle position to the destination on the display screen of the liquid crystal display 15 This will be described with reference to FIG. FIG. 8 is a diagram showing an example of displaying the consumption value of the host vehicle depreciated by actually traveling from the departure place to the host vehicle position. Each amount shown in FIG. 8 is calculated from each amount shown in FIG.

  As shown in FIG. 8, the CPU 41 displays all the recommended routes 71 on the map of the display screen of the liquid crystal display 15 with a blue thick line, and displays a vehicle position mark 75 representing the vehicle position. Further, the CPU 41 sets “200 yen” as the “fuel cost W during actual driving”, “0 yen” as the “toll T during actual driving”, and “1200 yen” as the “consumption value V during actual driving”. “1400 Yen” is calculated as the “total amount during actual travel”, which is read from the RAM 42 and summed up. Then, the CPU 41 displays each amount as “gasoline fee”, “high-speed fee”, “consumed value”, and “total amount” in a balloon 76 corresponding to the section from the departure place to the vehicle position on the display screen. To do.

  Further, the CPU 41 reads “400 yen” as the “expected fuel cost”, “250 yen” as the “expected toll”, and “1881.4 yen” as the “expected consumption value” from the RAM 42, and sums them. “2531.4 Yen” is calculated as “total amount”. Then, the CPU 41 displays each amount as “gasoline fee”, “high-speed fee”, “consumed value”, and “total amount” in a balloon 77 corresponding to the section from the vehicle position to the destination on the display screen. To do.

  Subsequently, after executing the process of S118, the CPU 41 executes a determination process for determining whether or not the vehicle is parked after the vehicle position has reached the destination. If the vehicle position has not yet reached the destination, or if it has been determined that the vehicle has not yet parked after reaching the destination, the CPU 41 executes a loop after S112. A shift lever switch (not shown) for detecting a parking position (P), a drive position (D), a reverse position (R), etc. of a shift lever (not shown) is connected to the control unit 13, and the shift lever shifts. When the position is “P (parking)”, the CPU 41 determines that the vehicle is parked.

On the other hand, if it is determined that the vehicle is parked after the vehicle position has reached the destination, the CPU 41 ends the loop and proceeds to the process of S119.
In S119, the CPU 41 determines the travel date and time, the departure point, the destination, the travel route, the fuel consumption during the actual travel, the travel distance, the fuel price per liter, the travel from the departure point to the destination. The timer 45, the RAM 42, the data recording unit 12 indicate the “consumption value V during actual driving”, the number of times of accelerator opening above the threshold, the number of sudden brakes above the threshold, the number of sudden handles above the threshold, etc. And stored in the travel history DB 28.

  Subsequently, in S120, the CPU 41 reads out the “fuel cost W during actual traveling”, “the toll T during actual traveling”, and “the consumption value V during actual traveling” from the RAM 42, and sums them. "Total amount of time" is calculated. Then, the CPU 41 obtains the “fuel cost W during actual driving”, “the toll T during actual driving”, “the consumption value V during actual driving”, and “the total amount during actual driving” from the departure point. After displaying on the display screen of the liquid crystal display 15 as “consumed gasoline fee”, “high-speed fee”, “consumed value” and “total amount” consumed by traveling to the destination, the processing ends.

  Here, an example in which “consumed gasoline fee”, “high-speed fee”, “consumed value” and “total amount” consumed by traveling from the departure place to the destination will be described with reference to FIG. FIG. 9 is a diagram showing an example in which “consumed gasoline cost”, “high speed fee”, “consumed value”, and “total amount” consumed by traveling from the departure place to the destination are displayed.

  As shown in FIG. 9, the CPU 41 displays the departure place “XXX station” and the destination “XXX park” on the display screen of the liquid crystal display 15. Further, the required time and travel distance from the departure point to the destination are displayed in the square frame 81. Further, the CPU 41 sets “598 yen” as “fuel cost W during actual driving”, “250 yen” as “toll T during actual driving”, and “3079 yen” as “consumption value V during actual driving”. “3927 Yen” is calculated as the “total amount during actual driving”, which is read from the RAM 42 and summed up. Then, the CPU 41 displays each amount in the square frame 82 as “consumed gasoline fee”, “high speed fee”, “consumed value”, and “total amount”, respectively.

  Therefore, when the CPU 41 starts the travel of the recommended route by executing the processes of S111 to S118, the fuel cost actually consumed from the start of the travel to the vehicle position and the toll of the toll road In addition, the consumption value of the host vehicle actually depreciated by traveling from the start of traveling to the host vehicle position can be displayed reflecting the driving characteristics of the driver. In addition, when the CPU 41 travels along a seaside section or a section below freezing point, the consumption value of the host vehicle due to the influence of each section can be added and displayed.

  Thereby, the user can clearly recognize the consumption value of the own vehicle actually depreciated from the start of traveling on the recommended route to the own vehicle position. In addition, the user can know the more accurate consumption value of the own vehicle that has been depreciated by actually traveling in a section along the sea or a section below freezing.

  In addition, by executing the process of S120, the CPU 41 travels from the departure point to the destination as well as the fuel cost and toll road toll actually consumed from the departure point of the recommended route to the destination. By doing so, the consumption value of the own vehicle actually depreciated can be displayed. As a result, the user can clearly recognize the consumption value of the host vehicle depreciated by actually traveling on the recommended route.

[Consumption value display processing during normal driving]
Next, a process executed by the CPU 41 of the navigation device 1, which displays the consumption value of the host vehicle depreciated by traveling when the vehicle starts traveling without performing a route search. Will be described with reference to FIG. FIG. 10 is a flowchart showing a “normal consumption value display process” for displaying the consumption value of the host vehicle depreciated by traveling when traveling is started without performing a route search.

  The program shown in the flowchart of FIG. 10 is stored in the ROM 43 provided in the navigation control unit 13, and is executed by the CPU 41 when traveling is started without performing a route search. Further, the CPU 41 acquires fuel injection amount data from the engine ECU 56 every predetermined time (for example, about every 1 second). Moreover, CPU41 acquires the own vehicle position at the time of a driving | running | working start, and memorize | stores it in RAM42 as a departure place.

As shown in FIG. 10, in S211 to S213, the CPU 41 executes the processes of S15 to S17, determines the driving characteristics of the driver, and stores them in the RAM 42.
In S214, the CPU 41 executes the process of S111, and reads from the RAM 42 "fuel cost W during actual travel", "toll T during actual travel", and "consumption value V during actual travel". Then, “0” is substituted for each and stored in the RAM 42 again. That is, the CPU 41 initializes “the fuel cost W during actual travel”, “the toll T during actual travel”, and “the consumption value V during actual travel”.

Subsequently, in S215 to S219, the CPU 41 executes a determination process for determining whether or not the vehicle is parked after performing the processes of S112 to S116. And when it determines with having not parked, CPU41 performs the loop after S215.
On the other hand, when it determines with having parked, CPU41 complete | finishes the said loop, transfers to the process of S220, and performs the process of said S119. The CPU 41 acquires the parked vehicle position and stores it in the travel history DB 28 as a destination.

  In S221, the CPU 41 reads the “fuel cost W during actual driving”, “the toll T during actual driving”, and “the consumption value V during actual driving” from the RAM 42, and sums them. Is calculated. Then, the CPU 41 travels the “fuel cost W during actual traveling”, “the toll T during actual traveling”, “the consumption value V during actual traveling”, and “the total amount during actual traveling”, respectively. Is displayed on the display screen of the liquid crystal display 15 as “consumed gasoline fee”, “high-speed fee”, “consumed value” and “total amount” of the host vehicle, and the process is terminated.

  Therefore, the CPU 41 executes not only the fuel cost consumed by actually traveling and the toll on the toll road even when the traveling is started without performing the route search by executing the processes of S211 to S221. The consumption value of the host vehicle actually depreciated by traveling from the start of traveling to parking can be displayed when the vehicle is parked reflecting the driving characteristics of the driver. In addition, when the CPU 41 travels along a seaside section or a section below freezing point, the CPU 41 can display the value when the vehicle is parked by adding the consumption value of the host vehicle due to the influence of each section.

  Thereby, even if the user starts traveling without searching for a route, when the user parks, the user can clearly recognize the consumption value of the own vehicle actually depreciated by traveling from the start of traveling to parking. It becomes possible. In addition, when the user parks, the user can know the more accurate consumption value of the subject vehicle that has been depreciated by actually traveling in a section along the sea or a section below freezing.

  In addition, this invention is not limited to the said Example, Of course, various improvement and deformation | transformation are possible within the range which does not deviate from the summary of this invention. For example, the following may be used.

  (A) In the processes of S114 and S217, the CPU 41 reads the accelerator opening, sudden brake, and sudden handle counts above the threshold from the RAM 42, and the total accelerator opening, sudden brake, and sudden handle count above the threshold is calculated. In the case of a predetermined number of times or more (for example, two or more times), the CPU 41 may determine that the driving characteristic of the driver is “rough”. As a result, the user can clearly know that the consumption value of the host vehicle is increased when driving rough, and can make a careful drive.

  (B) In S11, the CPU 41 searches not only the “recommended route” searched so as to shorten the required time but also the “paid priority route” that is searched with priority on toll roads such as national highways and urban expressways. It is also possible to search for a plurality of routes such as “general priority route” searched with priority on general roads and “distance priority route” searched for the shortest distance. In this case, the CPU 41 executes the processes of S12 to S20 for each route. In S21, the “expected required time”, “travel distance”, “expected fuel cost”, “expected toll” for each route. Each amount of “expected consumption value” and the total amount of “expected fuel cost”, “expected toll” and “expected consumption value” may be displayed on the display screen of the liquid crystal display 15.

  As a result, the user can compare the fuel cost, the toll on the toll road, and the consumption value of the vehicle depreciated by traveling for each route, and can easily select the travel route. Become. The CPU 41 may provide voice guidance for routes that do not pass along the sea. Thereby, the user can select a travel route more easily.

  (C) In S120 and S221, the “fuel cost W during actual traveling”, “the toll T during actual traveling”, “the consumption value V during actual traveling”, and these are added up. In addition to the “total amount during actual travel”, each past travel history is read from the travel history DB 28, “fuel cost during actual travel” consumed during each travel, and amortized by travel from the departure point to the destination. The “consumption value V during actual driving” of the vehicle may also be displayed on the display screen of the liquid crystal display 15. Thereby, the user can know not only the consumption value of the own vehicle depreciated by the current traveling but also the consumption value of the own vehicle depreciated by traveling in the past.

  (D) Moreover, in said S119, CPU41 may memorize | store the frequency | count of the accelerator opening more than a threshold value, the frequency | count of the sudden brake more than a threshold value, and the frequency | count of the sudden handle more than a threshold value for every road classification. Then, the CPU 41 may specify the driving characteristics of the driver for each road type in S16. Thereby, it becomes possible to specify a driving characteristic of a user for every road type, and it becomes possible to acquire more accurately the consumption value of the own vehicle depreciated by traveling.

  (E) In S112, the CPU 41 may determine whether it is easy to switch the display state of the liquid crystal display 15 such as when entering or leaving the expressway from the route information of the recommended route. Good. Then, when it is determined that it is easy to switch the display state of the liquid crystal display 15, the processes of S113 to S118 may be executed.

  (F) Further, the CPU 41 may determine the driving characteristics of the driver as “normal” without executing the processes of S211 to S213 and execute the processes of S214 to S221. Thereby, it is possible to speed up the processing speed.

DESCRIPTION OF SYMBOLS 1 Navigation apparatus 11 Present location detection part 12 Data recording part 13 Navigation control part 14 Operation part 25 Map information DB
26 Vehicle Value Information DB
27 Consumption Value Information DB
28 Travel history DB
41 CPU
42 RAM
43 ROM
52 Accelerator sensor 53 Steering sensor 54 Brake sensor 55 Temperature sensor 56 Engine ECU
61 Vehicle Value Table 62 Travel Consumption Value Table 63 Environmental Consumption Value Table 71 Recommended Route

Claims (7)

Mileage detecting means for detecting the mileage;
Consumption value information storage means for storing consumption value information related to the consumption value of the host vehicle depreciated per unit mileage;
Based on the travel distance detected by the travel distance detection means and the consumption value information, consumption value calculation means for calculating the consumption value of the host vehicle depreciated by traveling;
Display means for displaying the consumption value of the host vehicle calculated by the consumption value calculation means;
An information display device comprising: Map information storage means for storing map information;
A destination input means for inputting a destination;
Own vehicle position detecting means for detecting the own vehicle position;
Route search means for searching a route from the current vehicle position to the destination based on the map information;
Route distance acquisition means for acquiring the distance of the route searched by the route search means;
Based on the route distance acquired by the route distance acquisition means and the consumption value information, consumption value estimation means for estimating the consumption value of the host vehicle to be depreciated by traveling on the route;
With
The information display device according to claim 1, wherein the display unit displays the consumption value of the host vehicle estimated by the consumption value estimation unit together with route information regarding a route to the destination. Based on the travel distance detected by the travel distance detecting means and the consumption value information, the actual consumption value calculation during actual travel is performed to calculate the actual travel value of the vehicle depreciated from the start of travel to the current vehicle position. With means,
The said display means displays the consumption value at the time of actual driving of the own vehicle calculated by the actual driving value calculation means together with the route when the traveling of the route is started. 2. The information display device according to 2. Driving information acquisition means for acquiring driving information related to the driving situation of the host vehicle;
Driving characteristic determining means for determining a driving characteristic of the driver based on the driving information;
With
The consumption value information is provided in plural types corresponding to the driving characteristics,
The information display apparatus according to claim 1, wherein the consumption value calculation unit selects the consumption value information corresponding to the driving characteristic determined by the driving characteristic determination unit. Provided with road type acquisition means for acquiring the road type of the road that has traveled,
The consumption value information is provided for each road type,
5. The information display device according to claim 1, wherein the consumption value calculation unit selects the consumption value information corresponding to the road type acquired by the road type acquisition unit. Environmental information acquisition means for acquiring environmental information related to the driving environment;
Travel time acquisition means for acquiring travel time in the travel environment;
Environmental consumption value information storage means for storing environmental consumption value information relating to the consumption value of the host vehicle depreciated per unit time in a predetermined driving environment;
With
The consumption value calculation means calculates the consumption value of the vehicle depreciated in the predetermined driving environment based on the driving time in the predetermined driving environment and the environmental consumption value information, 6. The information display device according to claim 1, wherein the information display device adds to the consumption value of the vehicle. Fuel consumption detection means for detecting fuel consumption;
Fuel price acquisition means for acquiring the fuel price;
Fuel cost calculation means for calculating the fuel cost of fuel consumed from the start of travel based on the fuel consumption detected by the fuel consumption detection means and the fuel price;
With
The display means displays a total amount of the consumption value of the host vehicle calculated by the consumption value calculation means and the fuel cost calculated by the fuel cost calculation means. The information display apparatus in any one of.

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