JP7030047B2 - Fuel management support system - Google Patents

Description

The present invention relates to a technique for supporting the management of gasoline in an automobile in which gasoline and electric power can be used for traveling.

As a technology to support the management of gasoline in automobiles that can use gasoline and electric power for driving, the previous refueling date and time in a hybrid vehicle having a driving mode that uses only electric power for driving and a driving mode that uses gasoline and electric power together. Estimate the possibility of gasoline deterioration before the total consumption of gasoline in the car from the elapsed period from, and if there is a possibility of gasoline deterioration, use gasoline and electric power together. A technique for promoting gasoline consumption by preferentially using a traveling mode is known (for example, Patent Document 1).

Further, as a technology related to refueling an automobile, a technology is known that automatically searches for a gas station existing in the vicinity and guides a route to the searched gas station when the remaining amount of gasoline is low. (For example, Patent Document 2)

Japanese Unexamined Patent Publication No. 2012-166777 Japanese Unexamined Patent Publication No. 2000-46573

The above-mentioned technology that promotes the consumption of gasoline by preferentially using the driving mode in which gasoline and electric power are used together when there is a possibility of deterioration of gasoline consumes all the gasoline that may deteriorate. Then, after consuming all the gasoline, the vehicle runs only with electric power to refuel new gasoline, so that there is a possibility that the electric power is insufficient and the automobile cannot run before refueling.

Therefore, it is an object of the present invention to support the total consumption of gasoline that may cause deterioration while suppressing the occurrence of an event that makes the automobile inoperable.

In order to achieve the above-mentioned problems, the present invention has a first traveling mode in which the vehicle travels using at least refueled gasoline and a second traveling mode in which the vehicle travels using the stored electric power without using the gasoline. The fuel management support system installed in the equipped vehicle includes a detection means for detecting the elapse of a predetermined time length from the time of the last refueling of the gasoline of the vehicle, a route guidance means for guiding the route, and at least. When the detection means has detected the passage of a period of the predetermined time length, the first distance, which is the travelable distance from the current position to the total consumption of gasoline in the first travel mode, and the above from the current position. After traveling the first distance in the first travel mode, the second distance, which is the distance that can be traveled in the second travel mode before the total power consumption when traveling in the second travel mode, is calculated and is currently used. Search for a suitable gasoline station that is at least the first distance away from the position and at least not more than the total distance of the first distance and the second distance from the current position, and search for the route guidance means. It is provided with a gasoline total consumption running support means for guiding the route to the appropriate gasoline station and causing the automobile to run in the first running mode until the gasoline is completely consumed.

Here, in such a fuel management support system, when there are a plurality of appropriate gas stations searched for in the gasoline total consumption running support means, among the appropriate gas stations existing in the plurality of appropriate gas stations in the route guidance means. It may be configured to guide the route to the appropriate gas station closest to the current position of.

Further, in the fuel management support system as described above, in the gasoline total consumption driving support means, when the route guidance means is guiding the route to a predetermined point, the gas station along the route is selected from among the gas stations. The appropriate gas station may be searched for, and the route guiding means may be configured to guide the route to the predetermined point via the searched appropriate gas station.

Further, in this case, if the search for the appropriate gas station from the gas stations along the route fails in the gasoline total consumption driving support means, the gas stations not along the route are selected. The appropriate gas station may be searched for, and the route guiding means may be made to guide the route to the predetermined point via the searched appropriate gas station.

Further, the fuel management support system as described above detects the occurrence of the lapse of the predetermined time length in the detection means, and the detection means in the gasoline total consumption running support means for the predetermined time length period. When the occurrence of the progress of the above is detected, the appropriate gas station may be searched for, and the route guiding means may be configured to guide the route to the searched appropriate gas station.

Further, in the fuel management support system as described above, when the user requests the search for a gas station in the gasoline total consumption driving support means, the detection means detects the passage of a period of the predetermined time length. If so, the appropriate gas station may be searched for, and the route guidance means may be configured to guide the route to the searched appropriate gas station.

A gas station whose route is guided by the above fuel management support system is farther than the travelable distance to the total consumption of gasoline when traveling in the first driving mode in which the vehicle is driven using at least refueled gasoline. Since it will be a gas station at the location, all the gasoline of the car will be consumed by the time it reaches the gas station. In addition, the gas station where the route is guided is within the reachable distance of the gas station, which is driven in the second driving mode in which the vehicle travels until the gasoline is completely consumed and then uses the stored electric power without using the gasoline. Since it becomes a stand, it is prevented that all the electric power is consumed until the gas station is reached and the car cannot run.

Therefore, when there is a possibility that the gasoline of the automobile may deteriorate, by searching for and guiding the gas station as described above, the occurrence of the deterioration may be suppressed while suppressing the occurrence of the event that the automobile becomes inoperable. It can help to make all the possible consumption of gasoline.

As described above, according to the present invention, it is possible to support the total consumption of gasoline that may be deteriorated while suppressing the occurrence of the event that the automobile becomes inoperable.

It is a figure which shows the structure of the fuel management support system which concerns on embodiment of this invention. It is a flowchart which shows the deteriorated gasoline consumption support processing which concerns on embodiment of this invention. It is a flowchart which shows the gas station search process which concerns on embodiment of this invention. It is a figure which shows the guide example of the gas station which concerns on embodiment of this invention. It is a figure which shows the guide example of another gas station which concerns on embodiment of this invention.

Hereinafter, embodiments of the present invention will be described.
FIG. 1 shows the configuration of the fuel management support system according to the present embodiment.
As shown in the figure, the fuel management support system is an automobile control system 1 that controls the operation and status of automobiles such as ECUs, calculates the current position, searches for a route to the destination, and displays the current position on a map. It is equipped with a navigation system 2 and a refueling support device 3 that guide the route by displaying a screen showing the route.

Here, the vehicle equipped with the fuel management support system is a vehicle such as a hybrid vehicle or a plug-in hybrid vehicle that can use gasoline and electric power for driving, and the driving modes include a power driving mode and a gasoline driving mode. I have. The electric power driving mode is a mode in which the vehicle travels using only electric power, and the gasoline driving mode is a mode in which the vehicle travels using only gasoline. However, the gasoline driving mode may be a mode in which electric power is generated and charged using gasoline while traveling using gasoline.

Then, the automobile control system 1 controls such switching of the traveling mode and the traveling of the automobile in each traveling mode. Further, the automobile control system 1 detects and manages the fuel consumption and the electric power consumption in each traveling mode of the automobile, and the remaining amount of gasoline and the remaining amount of electric power of the automobile as the state of the automobile.

Further, the location information of various facilities such as a gas station is registered in the navigation system 2, and the navigation system 2 can search for a facility that matches the set conditions and calculate the position.

Next, the refueling support device 3 includes a refueling state management unit 31, a refueling support processing unit 32, and a cruising range calculation unit 33.
The refueling state management unit 31 manages the remaining amount of gasoline in the current automobile from the remaining amount of gasoline in the fuel tank detected by the automobile control system 1, and also manages the remaining amount of gasoline in the fuel tank detected by the automobile control system 1. Based on changes in the amount, etc., the last refueling date and time, which is the date and time when the vehicle was last refueled, is detected and managed.

The cruising range calculation unit 33 is based on the history of fuel consumption and power consumption of the vehicle in each driving mode detected by the vehicle control system 1, and the power when traveling in the power driving mode based on the remaining amount of power and the remaining amount of gasoline. The cruising distance in the power driving mode, which is the distance that can be traveled until all the gasoline is consumed, and the gasoline driving mode, which is the distance that can be traveled until all the gasoline is consumed when traveling in the gasoline driving mode. Calculate the cruising range, etc.

Then, the refueling support processing unit 32 performs the deteriorated gasoline consumption support processing and the gas station search processing as shown below.
First, the deteriorated gasoline consumption support processing performed by the refueling support processing unit 32 will be described.
FIG. 2 shows the procedure of the deteriorated gasoline consumption support processing.
As shown in the figure, the refueling support processing unit 32 monitors the occurrence of the lapse of a predetermined threshold number of days Th1 from the last refueling date and time managed by the refueling state management unit 31 in the deteriorated gasoline consumption support processing (step 202). .. Here, the threshold number of days Th1 is the number of days (for example, 173 days) obtained by subtracting a predetermined margin number of days (for example, 7 days) from the estimated number of days (for example, 180 days) until the gasoline deteriorates after refueling. ..

Then, if the lapse of the threshold number of days Th1 from the last refueling date and time occurs, the cruising distance a, which is the distance that can be traveled in the gasoline driving mode from the present until the total consumption of gasoline when traveling in the gasoline driving mode. And the cruising distance b, which is the distance that can be traveled in the power driving mode until the total consumption of power when the vehicle travels in the power driving mode after traveling the cruising distance a in the gasoline driving mode, is the cruising distance calculation unit 33. To calculate (step 204). Here, the cruising distance b when traveling in the power traveling mode after traveling in the cruising distance a in the gasoline traveling mode is such that the gasoline traveling mode uses only gasoline without generating or charging using gasoline. In the case of the driving mode, it is calculated from the current remaining electric power and the electric energy consumption per unit mileage of the electric power driving mode, and the gasoline driving mode uses only gasoline while generating and charging using gasoline. In the mode of running in the gasoline running mode, the cruising distance a in the gasoline running mode is the amount of power obtained by adding the amount of charge expected when running to the current remaining amount of power, and the power per unit mileage in the power running mode. Obtained from consumption.

Then, next, it is checked whether or not the route to the destination is set in the navigation system 2 (step 206).
If the route to the destination is not set, use the previously calculated cruising distance a and cruising distance b to select a gas station whose distance from the current position is less than a + b and greater than or equal to a. Have the navigation system 2 search (step 208).

Then, when the navigation system 2 succeeds in the search (step 210), the navigation system 2 is instructed to guide the gas station closest to the current position among the searched gas stations (step 212). At this time, it is better to present a message such as "We will guide you to a gas station where you can consume all the deteriorated gasoline and refuel with new gasoline" by voice or display.

Here, the navigation system 2 that received the instruction of the guidance of the gas station set the gas station closest to the current position among the searched gas stations as the destination, searched the route, and then set it as the destination. Guide the route to the gas station.

Then, the automobile control system 1 is instructed to travel in the gasoline traveling mode until the gasoline is completely consumed (step 214).
Upon receiving the instruction, the automobile control system 1 sets the driving mode to the gasoline driving mode until the gasoline is completely consumed, and controls the driving of the vehicle. When the gasoline is completely consumed, the gasoline is refueled thereafter. Until, control the running of the car in the power-only mode.

Then, it waits for the generation of new refueling (step 216), and returns to the process from step 202.
On the other hand, when the search for the gas station whose distance from the current position of the navigation system 2 is less than a + b and is greater than or equal to a fails (step 210), the process returns to the process from step 204.

On the other hand, when it is determined in step 206 that the route to the destination is set, the distance from the current position is less than a + b using the previously calculated cruising distance a and cruising distance b. The navigation system 2 searches for a gas station that is equal to or greater than a and is located along the set route (step 218).

Then, when the navigation system 2 succeeds in the search (step 220), the navigation system 2 is instructed to re-search the route set with the gas station closest to the current position among the searched gas stations as the waypoint (step 220). Step 222).

At this time, it is better to present a message such as "via a gas station where all the deteriorated gasoline is consumed and new gasoline can be refueled" to the user by voice or display.
Here, the navigation system 2 that receives the instruction to re-search the route set as the waypoint of the gas station sets the gas station closest to the current position among the searched gas stations as the waypoint, and sets the waypoint. Search for a route to the destination via the route, and then guide the set route.

Then, the automobile control system 1 is instructed to travel in the gasoline traveling mode until the gasoline is completely consumed (step 214).
Then, it waits for the generation of new refueling (step 216), and returns to the process from step 202.
On the other hand, when the search for the gas station along the route where the distance from the current position of the navigation system 2 is less than a + b and is greater than or equal to a fails (step 220), the process returns to the process from step 204.

Here, when the failure of the search is detected in step 210 or step 220 and the process returns to step 204, a gas station is generated in which the distance is less than a + b and greater than or equal to a in the state where the route is not set. Or, wait for the occurrence of a gas station along the route where the distance is less than a + b and is greater than or equal to a when the route is set, and guide the route to the generated gas station to the navigation system 2. It will be done.

The deteriorated gasoline consumption support processing performed by the refueling support processing unit 32 has been described above.
Next, the gas station search process performed by the refueling support processing unit 32 will be described.
FIG. 3 shows the procedure of this gas station search process.
As shown in the figure, the refueling support processing unit 32 monitors the occurrence of a gas station search request from the user in the gas station search process (step 302). Here, the search request for the gas station is received by the navigation system 2 and notified to the refueling support processing unit 32.

Then, when a request to search for a gas station is generated, it is checked whether or not the number of days elapsed from the last refueling date and time managed by the refueling state management unit 31 exceeds a predetermined threshold number of days Th2 (step 304). Here, Th2 is set to a number of days less than Th1 (for example, 150 days).

Then, if the number of days elapsed from the last refueling date and time exceeds the threshold number of days Th2, the cruising range calculation unit 33 is made to calculate the above-mentioned cruising distance a and cruising distance b (step 306).

Then, it is checked whether or not the route to the destination is set in the navigation system 2 (step 308).
If the route to the destination is not set (step 308), the navigation system 2 is searched for a gas station whose distance from the current position is less than a + b and is greater than or equal to a (step 310). If 2 succeeds in the search (step 312), the navigation system 2 is instructed to guide the gas station closest to the current position among the searched gas stations (step 314), and the gasoline is supplied to the automobile control system 1. It is instructed to run in the gasoline running mode until it is completely consumed (step 316).

Then, it waits for the generation of new refueling (step 318), and returns to the process from step 302.
On the other hand, if the search for a gas station whose distance from the current position of the navigation system 2 is less than a + b and is greater than or equal to a fails (step 312), the gasoline farthest from the current position within which the distance is within a. The guidance of the stand is instructed to the navigation system 2 (step 320), and the automobile control system 1 is instructed to run in the gasoline running mode until all the gasoline is consumed (step 316).

Here, the navigation system 2 instructed to guide the gas station farthest from the current position within the distance a, searches for the gas station farthest from the current position among the gas stations within the distance a. Set as the destination, search for the route to the destination, and then guide the searched route until the destination arrives. If there is no gas station within the distance a, the navigation system 2 searches for the nearest gas station, sets it as the destination, searches for the route to the destination, and then the destination. We will guide you through the route you searched for until you arrived.

Then, it waits for the generation of new refueling (step 318), and returns to the process from step 302.
On the other hand, when a route to the destination is set (step 308), the distance from the current position is less than a + b and greater than or equal to a, and the gas station along the set route is navigated. When the system 2 is made to search (step 322) and the search is successful (step 324), the navigation system 2 is made to search again for the route set to the gas station closest to the current position among the searched gas stations. (Step 326), and instructing the automobile control system 1 to run in the gasoline running mode until all the gasoline is consumed (step 316).

Then, it waits for the generation of new refueling (step 318), and returns to the process from step 302.
On the other hand, if the distance from the current position is less than a + b and is greater than or equal to a, and the search for a gas station along the set route fails (step 324), the distance is within a. Instructed to re-search the route set to the waypoint at the gas station along the route farthest from the current position (step 328), and instruct the automobile control system 1 to drive in the gasoline driving mode until all the gasoline is consumed. (Step 316).

Here, the navigation system 2 instructed to re-search the route set to the route point along the gas station along the route farthest from the current position within the distance a, searched for and searched for such a gas station. Set the gas station as a stopover, search for a route to the destination via the stopover, and then guide the set route. Further, when there is no gas station along the route within which the distance is within a, the navigation system 2 searches for the nearest gas station, sets it as a stopover, and heads for the destination via the stopover. The route is searched, and then the set route is guided.

Then, it waits for the generation of new refueling (step 318), and returns to the process from step 302.
If it is determined in step 304 that the number of days elapsed from the last refueling date and time does not exceed the predetermined threshold number of days Th2 (step 304), it is checked whether or not the route is set (step 330). If it is not set, the navigation system 2 is instructed to guide the nearest gas station (step 332), a new refueling is waited for (step 334), and the process returns from step 302. Here, the navigation system 2 instructed to guide the nearest gas station searches for the nearest gas station, sets the searched gas station as the destination, searches for a route to the destination, and then sets it. Guide the route.

If a route has been set (step 330), the navigation system 2 is instructed to guide the nearest gas station along the route (step 336), waiting for new refueling (step 334), and step. Return to the process from 302.

Here, the navigation system 2 instructed to guide the nearest gas station along the route searches for the nearest gas station along the route, sets the searched gas station as a stopover, and aims via the stopover. Search for a route to the ground, and then guide the set route.

The gas station search process performed by the refueling support processing unit 32 has been described above.
Here, FIG. 4 shows an example of the above-mentioned deteriorated gasoline consumption support processing and gas station search processing.
Now, as shown in FIG. 4a, the route 402 from the current position 401 to the destination is set, and the final situation is that the gas stations A, B, C, and D exist along the route 402 in the order of proximity to the current position. It is assumed that the user requests to search for a gas station while the number of days elapsed from the refueling date and time exceeds the threshold number of days Th1 or the number of days elapsed from the last refueling date and time exceeds the threshold number of days Th2.

Further, as shown in FIG. 4b1, after traveling the cruising distance a, which is the cruising distance from the current position to the total consumption of gasoline in the gasoline traveling mode, and the cruising distance a in the gasoline traveling mode, the power traveling mode is further increased. The cruising distance b, which is the distance that can be traveled in the power traveling mode until the total power is consumed, is obtained, the gasoline stations A and B are located within the cruising distance a from the current position, and the gasoline station C is located. It is assumed that the vehicle is located between the position advanced from the current position by the cruising distance a and the position advanced from the current position by the cruising distance a + the cruising distance b.

Then, in this case, the refueling support processing unit 32 instructs the navigation system 2 to guide the route via the gas station C as a stopover instead of the gas stations A and B near the current position, and the navigation system 2 instructes the navigation system 2. As shown in FIG. 4b2, the gas station C is set as a waypoint, the route 402 via the gas station C is set, the driving mode of the automobile is set to the gasoline driving mode, and then the guidance of the route 402 is performed. .. When the automobile that has started running in the gasoline running mode consumes all the gasoline, the running mode is switched to the electric power running mode to run.

Since the gas station C is located at a position farther than the current position by the cruising distance a or more, all the gasoline of the automobile is consumed by the time the gas station C is reached. On the other hand, since the gas station C is closer than the position where the cruising distance a + the cruising distance b is advanced from the current position, it is suppressed that all the electric power is consumed until the gas station C is reached and the vehicle cannot run. To.

Similarly, even when the route is not set, according to the above-mentioned deteriorated gasoline consumption support process and gas station search process, the number of days elapsed from the last refueling date and time exceeds the threshold number of days Th1 or from the last refueling date and time. When a user requests to search for a gas station while the number of days elapsed exceeds the threshold number of days Th2, all the gasoline is consumed by the time it arrives, and all the power is not consumed by the time it arrives. The navigation system 2 guides the route to the destination with the stand as the destination.

Note that FIGS. 4a and 4b2 represent screens in which the navigation system 2 presents the current position and route on the map to be displayed. Here, on this screen, the navigation system 2 guides the waypoints on the map by the waypoint mark 403. In addition, when the navigation system 2 approaches the waypoint, the navigation system 2 may guide the waypoint by outputting a voice for guiding the position of the waypoint.
The embodiment of the present invention has been described above.
By the way, in the above embodiment, if the remaining amount of gasoline becomes less than a predetermined threshold value in the state where the navigation system 2 is not guiding the route to the gas station in the refueling support processing unit 32, the nearest one is The refueling guidance process for instructing the navigation system 2 to guide the gas station may be further performed. Here, this threshold value may be, for example, a distance such that the travelable distance in the gasoline traveling mode is about 50 km to 100 km when the threshold value and the remaining amount of gasoline are the same.

Further, in the deteriorated gasoline consumption support process shown in FIG. 2 of the above embodiment, when the search for a gas station whose distance from the current position along the route is less than a + b and is greater than or equal to a fails in step 220. Search for a gas station whose distance from the current position outside the route is less than a + b and greater than or equal to a, and instruct the navigation system to re-search the route set with the searched gas station as a waypoint, and step. It may proceed to 214.

Similarly, the gas station search process shown in FIG. 3 fails in step 324 when the search for a gas station along the route from the current position is less than a + b and is greater than or equal to a fails. Search for a gas station whose distance from the current position located outside is less than a + b and greater than or equal to a, instruct the navigation system to re-search the route set with the searched gas station as a waypoint, and then step 316. It may proceed to.

By doing so, as shown in FIG. 5a, whether the number of days elapsed from the last refueling date and time exceeds the threshold number of days Th1 in the situation where the route 402 from the current position 401 to the destination is set. When a user requests to search for a gas station while the number of days elapsed from the last refueling date and time exceeds the threshold number of days Th2, the distance from the current position along route 402 is less than a + b and is greater than or equal to a. When there is no gas station and there is a gas station D outside the route 402 whose distance from the current position is less than a + b and greater than or equal to a, via the gas station D as shown in FIG. 5b. The route 402 can be changed so as to pass through as a ground, and the route 402 via the gas station D can be guided.

Even in this case, since the gas station D is located at a position farther than the current position by the cruising distance a or more, all the gasoline of the automobile is consumed by the time the gas station D is reached. On the other hand, since the gas station D is closer than the position where the cruising distance a + the cruising distance b is advanced from the current position, it is suppressed that all the electric power is consumed until the gas station D is reached and the vehicle cannot run. To.

Further, in the above embodiment, as the gasoline driving mode, there is a first gasoline driving mode in which gasoline is used to generate and charge electric power while traveling, and only gasoline is used without generating and charging electric power. When applied to an automobile equipped with both a second gasoline driving mode for traveling using the above-mentioned, in the above-mentioned deteriorated gasoline consumption support processing and gasoline station search processing, when the remaining amount of electric power is sufficient, the first The gasoline driving mode of 2 is processed as the gasoline driving mode described above, and when the remaining power is insufficient, the first gasoline driving mode is processed as the gasoline driving mode described above. good. By doing so, it is possible to prevent the cruising distance b that can be traveled in the electric power travel mode from becoming too small after traveling until the gasoline is completely consumed in the gasoline travel mode, and the travel distance is less than a + b. It is possible to increase the probability of occurrence of a gas station having a or more.

Further, in the above embodiment, the refueling support processing unit 32 may perform only one of the deteriorated gasoline consumption support processing of FIG. 2 and the gas station search processing of FIG. Further, when only the gas station search process of FIG. 3 is performed, the same value as Th1 described above may be used as the threshold value Th2.

1 ... Vehicle control system, 2 ... Navigation system, 3 ... Refueling support device, 31 ... Refueling status management unit, 32 ... Refueling support processing unit, 33 ... Cruising range calculation unit.

Claims (6)

A fuel management support system installed in an automobile having a first driving mode in which the vehicle travels using at least refueled gasoline and a second driving mode in which the vehicle travels using the stored electric power without using the gasoline. And,
A detection means for detecting the elapse of a predetermined time length from the time of the last refueling of gasoline of the automobile, and a detection means.
Route guidance means to guide the route and
At least when the detection means detects the passage of the predetermined time length, the first distance, which is the travelable distance from the current position to the total consumption of gasoline in the first travel mode, and the current position. After traveling the first distance in the first traveling mode, the second distance, which is the distance travelable in the second traveling mode before the total consumption of electric power when traveling in the second traveling mode, is calculated. Search for a suitable gas station that is at least the first distance away from the current position and at least not more than the sum of the first distance and the second distance from the current position, and use the route guidance means. The fuel is characterized by having a gasoline total consumption driving support means for guiding the route to the searched appropriate gas station and causing the vehicle to drive in the first driving mode until the gasoline is completely consumed. Management support system. The fuel management support system according to claim 1.
When there are a plurality of appropriate gas stations searched for, the gasoline total consumption driving support means leads to the route to the appropriate gas station closest to the current position among the plurality of appropriate gas stations that existed in the route guidance means. A fuel management support system that is characterized by providing guidance. The fuel management support system according to claim 1 or 2.
When the route guidance means is guiding a route to a predetermined point, the gasoline total consumption running support means searches for the appropriate gas station from the gas stations along the route, and the route guidance means. A fuel management support system characterized in that the route to the predetermined point is guided via the appropriate gas station searched for. The fuel management support system according to claim 3.
If the gasoline total consumption driving support means fails to search for the appropriate gas station from the gas stations along the route, the appropriate gas station is searched for from the gas stations not along the route. , A fuel management support system characterized in that the route guidance means guides a route to the predetermined point via a searched appropriate gas station. The fuel management support system according to claim 1, 2, 3 or 4.
The detection means detects the occurrence of the lapse of the predetermined time length period, and
The gasoline total consumption running support means searches for the appropriate gas station when the detecting means detects the occurrence of the lapse of the predetermined time length, and the route guiding means reaches the searched appropriate gas station. A fuel management support system characterized by providing route guidance. The fuel management support system according to claim 1, 2, 3 or 4.
When the user requests the search for a gas station, the gasoline total consumption driving support means searches for the appropriate gas station when the detection means detects the passage of a period of the predetermined time length. A fuel management support system characterized in that the route guidance means guides a route to a searched appropriate gas station.

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