JP2011229362A - Charging guide device and charging guide method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a charging guide device and a charging guide method, capable of securing a sufficient electrical energy volume when a vehicle starts traveling, by estimating the electrical energy volume necessary for next traveling to guide charging irrespective of setting operation of a destination.SOLUTION: The device has a self-vehicle position operating part 25 for acquiring the current position of the vehicle, a button 41 for inputting recording start instruction information and recording stop instruction information for the amount of power consumption to be consumed according to traveling of the vehicle, a traveling history acquiring part 29 for memorizing the amount of power consumption consumed from a time in which the recording start instruction information is inputted, to a time in which the recording stop instruction information is inputted in a history data storage part 32 in association with a reference spot, and a controller 33 which determines whether or not the vehicle arrives at the reference spot based on the current position, and acquires a remaining electrical energy when the vehicle arrives at the reference spot, and when the amount of power consumption memorized in association with the reference spot is larger than the remaining electrical energy, reports the necessity of charging to a battery 14 to a display 38.

Description

  The present invention relates to a charging guide device and a charging guide method that are mounted on an electric vehicle that travels by obtaining, for example, electric power stored in a storage battery and guides charging of the storage battery.

  2. Description of the Related Art Conventionally, in addition to an automobile using only an internal combustion engine as a driving source, an electric automobile including an electric motor as a driving source is known. The electric vehicle stores electric power supplied from a commercial power source in a storage battery, and supplies the stored electric power to an electric motor to travel.

  In such an electric vehicle, as described in Patent Document 1, for example, a vehicle equipped with a navigation system (charging guidance device) that notifies the necessity of charging based on the amount of power stored in a storage battery is known. Yes.

  That is, when the destination is set by the user, the navigation system first estimates the amount of power required to travel from the current position to the destination. When it is determined that the amount of power stored in the storage battery is less than the required amount of power, the user is prompted to charge.

JP 2003-294463 A

  By the way, in general, the destination is set when actually going to the destination. Therefore, even when charging is prompted at the time of setting the destination, it is difficult to secure a sufficient charging time from that point. On the other hand, when traveling without setting a destination, charging guidance could not be performed.

  The present invention has been made in view of the above problems, and its purpose is to estimate the amount of electric power required for the next run regardless of the destination setting operation, and to guide charging, thereby An object of the present invention is to provide a charging guidance device and a charging guidance method capable of ensuring a sufficient amount of power at the start of traveling.

  In order to achieve the above object, a charging guide device according to the present invention is mounted on a vehicle that can travel using a motor that rotates with electric power stored in a storage battery as a drive source, and guides charging of the storage battery. A current position acquisition means for acquiring a current position of the vehicle, and an input means for inputting recording start command information and recording end command information of power consumption consumed as the vehicle travels; The current position when the recording start command information is input is acquired as a reference point, and the power consumption from when the recording start command information is input to when the recording end command information is input is acquired. , Storage control means for storing the power consumption in association with the reference point in the storage unit, and determination for determining whether the vehicle has reached the reference point based on the current position And when the vehicle reaches the reference point, the amount of power stored in the storage battery is acquired as a remaining power amount, and the power consumption amount stored in the storage unit in association with the reference point And a notification control means for notifying the notification unit of the necessity of charging the storage battery when the amount is greater than the remaining power amount.

  According to the above configuration, the position when the recording start command information is input by the input unit is stored as the reference point, and when the vehicle reaches the reference point, the consumption stored in association with the reference point The charging can be guided based on the amount of electric power. That is, for example, by storing a point that is expected to arrive in the future (home, office, etc.) as a reference point, when it reaches the reference point again, power consumption that departs from the same reference point in the past. The amount of charge and the amount of remaining power are compared to notify the necessity of charging. Therefore, while improving the reliability of notifications, the charging amount is estimated by estimating the amount of power required for the next run regardless of the destination setting operation, so that a sufficient amount of charge is secured when the vehicle starts running Can be made.

  Further, in the charging guidance device according to the present invention, the storage control means determines the route traveled by the vehicle from the input of the recording start command information to the input of the recording end command information as the reference point and the In association with the power consumption amount, the storage unit stores the information, and when the vehicle travels along a route that matches the route, the memory is associated with the route according to the amount of power consumed as the route travels. The gist of the invention is to correct the power consumption stored in the unit.

  In general, even when traveling on the same route, the amount of electric power consumed varies depending on the traffic congestion on the road, the traveling time zone, and the use of lights and wipers associated with the weather. In this regard, according to the above-described configuration, by setting the power consumption based on the power consumed in each of a plurality of runs, the parameter can be increased and the reliability of the power consumption can be improved.

  Further, in the charging guidance device according to the present invention, when the plurality of routes are stored corresponding to one reference point, the notification control unit is configured such that when the vehicle reaches the reference point. The gist is to inform the notification unit of the necessity of charging the storage battery for each route.

  According to the above configuration, when a single reference point is reached, the necessity of charging is notified for each route stored in association with the reference point, so the user's options can be expanded. That is, the user can select to charge the storage battery or to run next time without charging.

  Further, in the charging guidance device according to the present invention, the storage control unit further associates day information with the reference point and the power consumption, and stores the day of the week information in the storage unit. When the vehicle reaches the reference point, the gist is to notify the notification unit of the necessity of charging the storage battery based on the day-of-week information stored in association with the reference point.

  According to the said structure, the reliability of alerting | reporting by an alerting | reporting part can be improved by matching day-of-week information with a reference | standard point, and memorize | storing. That is, for example, when a user uses a vehicle for commuting, the vehicle is driven on work days (weekdays), whereas the vehicle is not driven on holidays. Therefore, by notifying the notification unit of the necessity of charging based on the day of the week information, it is possible to improve the reliability of notification to the user whose usage pattern of the vehicle changes depending on the day of the week.

  In order to achieve the above object, a charging guide device according to the present invention includes a motor that rotates by electric power stored in a storage battery and an internal combustion engine that generates power by burning fuel stored in a fuel tank, and A charging guide device mounted on a vehicle capable of traveling using at least one as a drive source, current position acquisition means for acquiring a current position of the vehicle, and consumption consumed as the vehicle travels Input means for inputting the recording start command information and the recording end command information of the electric energy, the current position when the recording start command information is input is acquired as a reference point, and the recording start command information is input Storage control means for acquiring the power consumption amount from when the recording end command information is input to the storage unit and storing the power consumption amount in association with the reference point Determination means for determining whether the vehicle has reached the reference point based on the current position, and the amount of power stored in the storage battery when the vehicle has reached the reference point as a remaining power amount When the power consumption acquired and stored in the storage unit in association with the reference point is larger than the remaining power, the necessity of charging the storage battery is considered together with the possibility that the fuel is consumed. The gist of the present invention is to include notification control means for informing the notification unit.

  According to the above configuration, the position when the recording start command information is input by the input unit is stored as the reference point, and when the vehicle reaches the reference point, the consumption stored in association with the reference point The charging can be guided based on the amount of electric power. Furthermore, by notifying the possibility of fuel being consumed together with the necessity for charging, the user's awareness of charging can be enhanced. Specifically, for example, by storing a point that is expected to be reached in the future (home, office, etc.) as a reference point, when the reference point is reached again, the same reference point is departed and consumed in the past. The amount of power consumed and the amount of remaining power are compared to notify the necessity of charging and the possibility of fuel consumption. This improves the reliability of the notification and estimates the amount of power required for the next run regardless of the destination setting operation to guide the charge, so that a sufficient amount of charge can be obtained when the vehicle starts running. Can be secured.

  In addition, the charging guide device according to the present invention includes a saved fuel amount acquisition unit that acquires, as a saved fuel amount, an amount of fuel that can be saved by charging based on a difference between the remaining power amount and the consumed power amount. In addition, the notification control means, when the vehicle reaches the reference point, when the power consumption amount stored in the storage unit in association with the reference point is larger than the remaining power amount The gist of the invention is to cause the notifying unit to notify the saving fuel amount acquired by the saving fuel amount acquiring means.

  According to the said structure, the alerting | reporting part can alert | report the necessity of charge, and can alert | report the saving fuel amount which can be saved by charging. Therefore, the user's charging consciousness can be further improved.

  In addition, the charging guide device according to the present invention includes a storage unit that stores a supply time when the fuel is supplied to the fuel tank, and after the fuel is supplied based on the supply time stored in the storage unit. Period determining means for determining whether or not a pre-stored holding period has elapsed, wherein the notification control means is configured to notify the notification when the period determining means determines that the holding period has elapsed. The gist is to inform the part of the necessity of using the fuel.

  The fuel supplied to the fuel tank deteriorates with the passage of time. In that respect, according to the above-described configuration, when the holding period has elapsed from the replenishment time when the fuel is replenished, the notification unit notifies the necessity of using the fuel. Can be urged.

  On the other hand, a charging guidance method according to the present invention is a charging guidance method for guiding charging of the storage battery in a vehicle that can travel using a motor that rotates by electric power stored in the storage battery as a drive source. A current position acquisition stage for acquiring a current position; a reference point storage stage for storing the current position as a reference point when the recording start command information of the power consumption consumed with traveling of the vehicle is input; A power consumption storage step of storing the power consumption from the input of the recording start command information to the input of the recording end command information in association with the reference point; and the vehicle has reached the reference point A remaining power amount acquisition step of acquiring the amount of power stored in the storage battery as a remaining power amount, and the power consumption stored in association with the reference point rather than the remaining power amount And a notification control step of notifying the necessity of charging the storage battery to the notification unit when there are many.

According to this structure, the effect similar to the invention which concerns on the said charge guide apparatus can be show | played.
The charging guide method according to the present invention includes a motor that rotates by electric power stored in a storage battery and an internal combustion engine that generates power by burning fuel stored in a fuel tank, and drives at least one of them. A charging guidance method for guiding charging of the storage battery in a vehicle that can travel using the power source, the current position obtaining step for obtaining the current position of the vehicle, and the power consumption that is consumed when the vehicle travels A reference point storage step for storing the current position when a quantity of recording start command information is input as a reference point, and the power consumption from when the recording start command information is input to when recording end command information is input A power consumption storage stage for storing the amount in association with the reference point, and the remaining amount of power stored in the storage battery when the vehicle reaches the reference point The remaining power amount acquisition step acquired as follows, and when the power consumption amount stored in association with the reference point is larger than the remaining power amount, the fuel may be consumed due to the necessity of charging the storage battery The gist of the present invention is to provide a notification control step for informing the notification unit together with the characteristics.

  According to this structure, the effect similar to the invention which concerns on the said charge guide apparatus can be show | played.

The block diagram which shows the drive system and navigation system of 1st Embodiment. The flowchart which shows the charge guidance routine which a control part performs. The flowchart which similarly shows a storage control routine. The flowchart which similarly shows an alerting control routine. Explanatory drawing of the data structure of historical data. The screen figure of the display which guides charge. The block diagram which shows the drive system and navigation system of 2nd Embodiment. The flowchart which shows a part of charge guidance routine which a control part performs. The flowchart which shows a part of charge guidance routine similarly. The flowchart which similarly shows a part of memory | storage control routine. The flowchart which similarly shows a part of memory | storage control routine. The flowchart which similarly shows a part of alerting | reporting control routine. The flowchart which similarly shows a part of alerting | reporting control routine. The flowchart which similarly shows a part of alerting | reporting control routine. Explanatory drawing of a data structure of fuel consumption amount data. The screen figure of the display which guides charge and the amount of fuel saved.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a block diagram showing a drive system 11 for an electric vehicle that can run using a motor as a drive source, and a navigation system 12 as a charging guide device mounted on the vehicle of the electric vehicle.

  As shown in FIG. 1, the drive system 11 includes a battery 14 as a storage battery having a battery module, and a charging connector 15 for charging the battery 14 from the outside. The battery 14 can be charged from an external power source such as a commercial power source by connecting the charging connector 15 and a general household outlet or charging stand via a charging device such as a cable.

  In addition, an inverter 16 is connected to the battery 14 via a system main relay 17 by a high-voltage and large-current electric wire or the like. Furthermore, a motor 18 is connected to the inverter 16 by a high-voltage and large-current electric wire or the like. Therefore, the direct current output from the battery 14 is converted into an alternating current by the inverter 16 and then supplied to the motor 18. Further, the system main relay 17 switches between connection and disconnection of the high voltage circuit under the control of the control unit 19.

  That is, the control unit 19 obtains the motor torque and the like based on the accelerator opening output from the accelerator position sensor 20, the shift position output from the shift position sensor 21 and detection signals from various sensors (not shown). Then, the control unit 19 controls the driving force of the driving system 11 by outputting a required value to the inverter 16 or the like according to the obtained motor torque or the like.

  In addition, the battery computer 22 provided in the drive system 11 integrates a charge / discharge current of the battery 14 based on a current value acquired from a current sensor (not shown), and indicates an electric power stored in the battery 14 (State of State). Charge (charge state) value is calculated. Then, the battery computer 22 outputs the calculated SOC value to the control unit 19.

  The control unit 19 is connected to the navigation control unit 24 of the navigation system 12 by CAN (Controller Area Network) communication or the like, and outputs the SOC value acquired from the battery computer 22 to the navigation control unit 24. The navigation system 12 of the present embodiment guides charging of the battery 14 based on the acquired SOC value, and guides the route from the current position to the destination when the destination is set. It has become.

  Specifically, the navigation control unit 24 includes an own vehicle position calculation unit 25, a GPS reception unit 26, a route search unit 27, a battery management unit 28, a travel history acquisition unit 29, a map drawing unit 30, a geographic data storage unit 31, A history data storage unit 32 and a control unit 33 are provided.

  First, the vehicle position calculation unit 25 inputs a position detection signal indicating coordinates such as latitude and longitude received by the GPS reception unit 26 from a GPS (Global Positioning System) satellite, and calculates the absolute position of the vehicle by radio navigation. calculate. The own vehicle position calculation unit 25 acquires a vehicle speed pulse and an angular velocity from a vehicle speed sensor 35 and a gyro 36 provided in the own vehicle. Then, the vehicle position calculation unit 25 calculates a relative position from the reference position by autonomous navigation using vehicle speed pulses and angular velocities, and identifies the current position of the vehicle in combination with the absolute position calculated by radio wave navigation. In this respect, the vehicle position calculation unit 25 functions as a current position acquisition unit that acquires the current position of the vehicle.

  The geographic data storage unit 31 is an external storage medium such as an internal hard disk or an optical disk. The geographic data storage unit 31 stores search data 37 for searching for a route to the destination, and map drawing data 39 for outputting a map screen to a display 38 as a notification unit.

  The search data 37 is data related to roads in meshes that divide the whole country, and mesh IDs that are identifiers of the respective meshes, node data of nodes that are elements indicating intersections, interchanges, end points of roads, and the like, And link data of link L which is an element connecting each node.

  Further, the map drawing data 39 is stored for each mesh obtained by dividing a map of the whole country, and is divided into layers from a wide area map to a narrow area map. The map drawing data 39 includes a mesh ID, background data, road data, and the like. The background data is drawing data for drawing roads, urban areas, rivers, and the like. The road data is data representing the shape of the road and stores node coordinates, coordinates of shape interpolation points, width, gradient, road surface condition, and the like.

  Then, the route search unit 27 acquires a destination set based on the operation of the button 41 as an input unit, temporarily stores it in a memory (not shown), and searches for a route to the destination. Then, the map drawing unit 30 reads the map drawing data 39 corresponding to the vicinity of the current position of the vehicle and outputs it to the display 38, thereby displaying the icon indicating the current position and the route to the destination together with the map screen on the display 38. Let

Further, the battery management unit 28 acquires the SOC value from the control unit 19 and temporarily stores it in a memory (not shown).
Furthermore, when the record start command information is input based on the operation of the button 41, the travel history acquisition unit 29 acquires the link L where the vehicle is located from the geographic data storage unit 31 and the link of the acquired link L. Temporarily store data. Then, when the recording end command information is input thereafter, a plurality of links L (that is, temporarily stored at that time) from when the recording start command information is input until the recording end command information is input. The link data of link L) is stored in the history data storage unit 32 as route data RD.

  At this time, the travel history acquisition unit 29 includes, in the route data RD, the reference point B that is the point where the recording start command information is input, the day information of the day when the recording start command information is input, and the travel of the link L. The consumption power amount C consumed in association with each other is stored in the history data storage unit 32 as history data 40. In this regard, the history data storage unit 32 functions as a storage unit that stores various data, and the travel history acquisition unit 29 associates the power consumption C, the route data RD, and the day information with the reference point B. And function as storage control means for storing in the history data storage unit 32 (storage unit).

  Then, the control unit 33 sets the vehicle as the reference point based on the current position specified by the host vehicle position calculation unit 25, the SOC value stored in the battery management unit 28, and the history data 40 stored in the history data storage unit 32. While determining that it has reached, the map drawing unit 30 is controlled. That is, the control unit 33 compares the power consumption amount C stored as the history data 40 with the remaining power amount stored in the battery 14 when the vehicle reaches the reference point. When the power consumption amount C is larger than the remaining power amount, the necessity of charging the battery 14 is displayed on the display 38 to guide charging. In this respect, the control unit 33 determines whether or not the vehicle has reached the reference point B based on the current position, and the necessity of charging when the power consumption C is larger than the remaining power. It functions as a notification control means for notification.

  Next, based on the flowchart of the charging guidance routine shown in FIGS. 2 to 4, processing executed by the control unit 33 to perform acquisition control of the history data 40, storage control thereof, and notification control of the necessity of charging the battery 14. Explain the contents. This charging guidance routine is started when an ignition switch (not shown) of the vehicle is turned “ON”. Further, the position flag is maintained regardless of whether the ignition switch is “ON” or “OFF”, and the position flag is set to 0 in the initial state.

Now, as shown in FIG. 2, the control unit 33 first acquires the current position of the vehicle specified by the vehicle position calculation unit 25 in step S101 (current position acquisition stage).
Then, in the next step S102, the control unit 33 determines whether or not the button 41 is operated by the user and the recording start command information for the amount of power consumed as the vehicle travels is input.

  When the storage record start command information is input (step S102: YES), the control unit 33 executes the storage control routine (see FIG. 3) and stores the history data 40 in step S103, and then the step The process proceeds to S101.

  On the other hand, when the record start command information is not input (step S102: NO), in step S104, the control unit 33 determines whether or not the vehicle is positioned at the reference point B based on the current position acquired in step S101. Determine whether. However, in this embodiment, when the vehicle is located within a predetermined range centered on the reference point B (for example, within a radius of 100 m), the vehicle is considered to be located at the reference point B. To do.

  When the vehicle is located at the reference point B (step S104: YES), the control unit 33 determines whether or not the position flag is “1” in step S105. The position flag is a flag that is set to “1” when the vehicle is away from the reference point B (when the vehicle is located outside a predetermined range centered on the reference point B). Therefore, while the vehicle remains at the reference point B, it is maintained at “0”. Therefore, in step S <b> 105, the control unit 33 determines whether the vehicle has reached the reference point B after having once left the reference point B or remains at the reference point B.

  That is, when the position flag is “0” (step S105: NO), the control unit 33 determines that the vehicle remains at the reference point B, and proceeds to step S101. On the other hand, when the position flag is “1” (step S105: YES), it is determined that the vehicle has reached the reference point B after having once left the reference point B. Then, in the next step S106, the control unit 33 changes the position flag to “0”, and further executes a notification control routine (see FIG. 4) in step S107, and then ends the process of this charging guidance routine. .

  In Step S104, when it is determined that the vehicle is not located at the reference point B (Step S104: NO), the control unit 33 determines whether or not the position flag is “0” in Step S108. To do. If the position flag is “1” (step S108: NO), the control unit 33 shifts the process to step S113. On the other hand, when the position flag is “0” (step S108: YES), in step S109, the control unit 33 clears the link data of the link L temporarily stored in the travel history acquisition unit 29.

  Further, the control unit 33 acquires the electric energy stored in the battery 14 as the initial electric energy based on the SOC value acquired by the battery management unit 28 (step S110), and leaves the reference point B from a timer (not shown). The day information of the day is acquired (step S111). Further, the control unit 33 sets the position flag to “1” (step S112), causes the travel history acquisition unit 29 to acquire the link L corresponding to the current position from the geographic data storage unit 31, and the acquired link L. The link data is temporarily stored in order (step S113).

  In the next step S114, the control unit 33 includes a plurality of link data in which the link data of the plurality of links L temporarily stored in the travel history acquisition unit 29 is stored as the history data 40 in the history data storage unit 32. It is determined whether or not it matches the route data RD consisting of That is, it is determined whether the route traveled this time matches the route stored in the history data storage unit 32. And when it does not correspond with route data RD (Step S114: NO), control part 33 shifts the processing to Step S101.

  On the other hand, if it matches the route data RD (step S114: YES), in step S115, the control unit 33 determines the remaining power amount in the battery 14 based on the SOC value acquired by the battery management unit 28. Get as. In step S116, the control unit 33 calculates a power consumption amount C from the difference between the initial power amount acquired in step S110 and the remaining power amount acquired in step S115.

  In the next step S117, the control unit 33 controls the map drawing unit 30 to display on the display 38 that the history data 40 can be updated, and determines whether there is an update execution command. Then, when update execution command information based on the operation of the button 41 from the user is not input (step S117: NO), the control unit 33 proceeds to step S101. On the other hand, when the button 41 is operated by the user and execution command information for updating the power consumption is input (step S117: YES), the control unit 33 includes the reference point B and the route data RD in the history data 40. Is updated (step S118).

  That is, the control unit 33 adds the day of the week that traveled the route data RD to the history data 40 based on the day-of-week information acquired in step S111. Further, the control unit 33 newly overwrites the power consumption amount C with a value obtained by averaging the power consumption amount C stored in the history data storage unit 32 and the power consumption amount calculated in step S116. And if the historical data 40 is updated, the control part 33 will transfer the process to step S101.

Next, the storage control routine of step S103 will be described based on the flowchart shown in FIG.
As shown in FIG. 3, the control unit 33 first determines whether or not the position flag is “0” in step S201. If the position flag is “0” (step S201: YES), in step S202, the control unit 33 determines that the vehicle is the reference point B stored in the history data storage unit 32 as the history data 40. The reference point B that is located is acquired.

  In step S201, when the position flag is “1” (step S201: NO), in step S203, the control unit 33 starts recording at a position outside the predetermined range centered on the reference point B. It is determined that command information has been input, and the current position of the vehicle is set as a reference point B (reference point storage stage).

  In the next step S <b> 204, the control unit 33 clears the link data of the link L temporarily stored in the travel history acquisition unit 29. Further, the control unit 33 acquires the amount of power stored in the battery 14 as an initial power amount based on the SOC value acquired by the battery management unit 28 (step S205), and recording start command information is received from a timer (not shown). The day information of the input day is acquired (step S206).

  In step S207, the control unit 33 determines whether or not recording end command information has been input. That is, until the recording end command information is input (step S207: NO), the control unit 33 repeatedly executes step S208 to display the link L corresponding to the current position of the vehicle from the geographic data storage unit 31 as the travel history. The acquisition unit 29 is made to acquire and link data of the acquired link L is temporarily stored.

  Then, when the recording end command information is input (step S207: YES), in step S209, the control unit 33 converts the remaining power amount in the battery 14 based on the SOC value acquired by the battery management unit 28. Get as. Then, the control unit 33 calculates the power consumption amount from the difference between the initial power amount acquired in step S205 and the remaining power amount acquired in step S209 (step S210).

  Then, in the next step S211, the control unit 33 determines whether or not the reference point B acquired in step S202 or step S203 has been stored as the history data 40. If the reference point B has been stored (step S211: YES), the route data RD stored in the history data storage unit 32 corresponding to the reference point B and the travel history acquisition unit 29 are temporarily stored. It is determined whether or not the link data of the plurality of links L match (step S212).

  When the link data of the plurality of links L temporarily stored in the travel history acquisition unit 29 matches the route data RD (step S212: YES), in step S213, the control unit 33 acquires the day of the week acquired in step S206. The day of the week on which the route data RD has traveled is added to the history data 40 based on the information. Further, the history data 40 is updated by overwriting a value obtained by averaging the power consumption amount C stored in the history data storage unit 32 and the power consumption amount C calculated in step S210 as a new power consumption amount C.

  On the other hand, when the reference point B has not been stored (step S211: NO), or when the link data of the plurality of links L and the route data RD do not match (step S212: NO), in step S214, the control unit 33 creates history data 40. That is, the reference point B acquired in step S202 or step S203, the day-of-week information acquired in steps S206, S208, and S210, the link data of a plurality of links L, and the history data 40 that associates the power consumption C are newly added. To the history data storage unit 32 (power consumption storage stage). At this time, link data of a plurality of links L is added as route data RD. And the control part 33 complete | finishes this memory | storage control routine.

Next, the notification control routine of step S107 will be described based on the flowchart shown in FIG.
As shown in FIG. 4, first, in step S301, the control unit 33 acquires history data 40 corresponding to the reference point B where the vehicle is currently located, from the history data 40 stored in the history data storage unit 32. Further, in step S302, the control unit 33 acquires the amount of power remaining in the battery 14 as the remaining power amount based on the SOC value acquired by the battery management unit 28 (remaining power amount acquisition stage).

  Then, the control unit 33 determines whether or not the number N of route data RD stored corresponding to one reference point B where the vehicle is currently located is plural. If the number N of route data RD is 1 (step S303: NO), in step S304, the control unit 33 determines whether the power consumption amount C is equal to or greater than the remaining power amount. That is, when the power consumption amount C stored corresponding to the reference point B is equal to or greater than the remaining power amount acquired in step S302 (step S304: YES), in step S305, the control unit 33 displays the map drawing unit. 30 is informed that charging is required (notification control stage), and this notification control routine is terminated. If the power consumption is less than the remaining power (step S304: NO), the control unit 33 ends the notification control routine without notifying the necessity of charging.

  On the other hand, when it is determined in step S303 that the number N of route data RD is 2 or more (step S303: YES), in step S306, the control unit 33 determines that the Nth power consumption is the remaining power acquired in step S302. It is determined whether or not it is equal to or greater than the amount of power.

  That is, for example, when there are two route data RD, N = 2. Then, when the second power consumption amount is equal to or greater than the remaining power amount (step S306: YES), the control unit 33 controls the map drawing unit 30 to notify that charging is necessary (step S307). ), The link L of the route data RD corresponding to the second power consumption is displayed on the display 38 (step S308).

  On the other hand, when the second power consumption amount is less than the remaining power amount (step S306: NO), the control unit 33 shifts the process to step S308 and performs the link without notifying the necessity of charging. L is displayed.

  In step S309, N is decremented by 1, and in step S310, it is determined whether N = 0. That is, if the number N of route data RD is 2, first, N = 1 is set in step S309. Since N = 0 is not satisfied (step S310: NO), the control unit 33 shifts the process to step S306, and compares the first power consumption amount with the remaining power amount acquired in step S302.

  When the first power consumption amount is equal to or greater than the remaining power amount (step S306: YES), in step S307, the control unit 33 controls the map drawing unit 30 to notify that charging is necessary. Further, the control unit 33 displays the link L of the route data RD corresponding to the first power consumption amount on the display 38 (step S308). When the number N is decreased by 1 in step S309, N = 0 (step 310: YES), the control unit 33 ends the notification control routine.

Next, the operation when the charging is guided when the vehicle reaches the reference point B again after leaving the reference point B will be described with reference to FIGS.
As illustrated in FIG. 5, the history data storage unit 32 stores history data 40 in which the reference point B, route data RD, day of the week, and power consumption C are associated with each other. Specifically, for example, history data 40a with home as the reference point B, history data 40b with the company as the reference point B, history data 40c with the charging station as the reference point B, and the like.

  Of the history data 40a, for example, the first history data a1 receives the recording start command information at the home 43 (see FIG. 6) and reciprocates from the home 43 to the company 44 (see FIG. 6) again. When the home 43 is reached, the recording end command information is inputted and stored. At this time, the route data RD is stored as route data RD1, and link data is stored in the order of link L1, link L2, link L3, link L3, link L2, and link L1. And even after the record end command information is input, by reciprocating the route corresponding to the route data RD1, the day of the week (Monday to Friday) is added and the power consumed by the travel A power consumption amount C1 reflecting the amount is stored in association with each other.

  The second history data a2 is recorded when the vehicle travels on the links L1, L2, and L3 on the forward route, travels on the links L4, L5, and L6 different from the route data RD1 on the return route, and reaches the home 43 again. End command information is input and stored. At this time, the route data RD is stored as route data RD2, and link data is stored in the order of link L1, link L2, link L3, link L4, link L5, and link L6. As with the first history data a1, after the recording end command information is input, the day of the week (Monday-Friday) is added by repeatedly traveling the route corresponding to the route data RD2, and A power consumption amount C2 (> C1) in which the amount of power consumed with traveling is reflected is stored in association with each other.

  Similarly, a plurality of history data (only the first history data a1 to the fifth history data a5 are shown in FIG. 5) in which the recording start command information is input at the home 43 are the route data RD including the link L, the day of the week, The power consumption C (C1 to C5) is stored in association with each other. However, in the route data RD in the history data 40a with the reference point B as the home, the position where the recording start command information is input is the home 43, whereas the position where the recording end command information is input is different from each other. Well, not limited to home 43.

  When the vehicle reaches the home 43 with the history data 40 shown in FIG. 5 stored in the history data storage unit 32, the navigation system 12 guides the necessity of charging the battery 14.

  That is, for example, when the vehicle is driven on Monday and reaches the home 43, the control unit 33 stores the power consumption C stored in association with the next day of the week (Tuesday) in the history data 40a. And the amount of remaining power are compared. In FIG. 5, Tuesday is included in the days of the first history data a1 and the second history data a2, so the power consumption amounts C1 and C2 are compared with the remaining power amount.

  Then, as shown in FIG. 6, the first history data a1 and the second history data a2 are displayed on the display 38 together with an icon indicating the home 43 serving as a reference point and a landmark indicating the company 44 located in the middle of the route. The roads corresponding to the links L1, L2, L3, L4, L5, and L6 of the route data RD are identified and displayed, for example, by color. Further, guidance on the necessity of charging is displayed in association with each route data RD.

  That is, for example, when the remaining power amount is larger than the power consumption amount C1 and smaller than the power consumption amount C2 (C1 <remaining power amount <C2), the links L1, L2, and L3 indicated by bold lines in FIG. It is informed that charging is not required to travel on the route to be performed. On the other hand, when traveling on links L4, L5, and L6 indicated by two-dot chain lines on the return path, it is notified that charging is necessary.

According to the first embodiment, the following effects can be obtained.
(1) The position when the record start command information is input by the button 41 is stored as the reference point B, and the power consumption stored in association with the reference point B when the vehicle reaches the reference point B The charging can be guided based on the amount C. That is, for example, by storing a point (home, office, etc.) that is expected to reach in the future as the reference point B, when the reference point B is reached again, the same reference point B is departed and consumed in the past. The necessary power consumption C and the remaining power amount are compared to notify the necessity of charging. Therefore, while improving the reliability of notifications, the charging amount is estimated by estimating the amount of power required for the next run regardless of the destination setting operation, so that a sufficient amount of charge is secured when the vehicle starts running Can be made.

  (2) Even when traveling on the same route, the amount of electric power consumed varies depending on the congestion of the road, the traveling time zone, and the use of lights and wipers associated with the weather. In this regard, by setting the power consumption amount C based on the amount of power consumed in each of a plurality of runs, the parameter can be increased and the reliability of the power consumption amount C can be improved.

  (3) Since the necessity of charging is notified for each route data RD stored in association with the reference point B when one reference point B is reached, the options of the user can be expanded. That is, the user can select to charge the battery 14 or to travel on a route that is not required to be charged during the next travel without being charged.

(4) By storing the day-of-week information in association with the reference point B, the reliability of the notification displayed on the display 38 can be improved. That is, for example, when a user uses a vehicle for commuting, the vehicle is driven on work days (weekdays), whereas the vehicle is not driven on holidays. Therefore, by notifying the display 38 of the necessity of charging based on the day of the week information, it is possible to improve the reliability of notification to the user whose vehicle usage pattern changes depending on the day of the week.
(Second Embodiment)
Hereinafter, a second embodiment in which the present invention is embodied in a navigation system mounted on a plug-in hybrid vehicle that includes a motor and an internal combustion engine as drive sources and is connected to an external power source and can be charged with a battery. Will be described with reference to FIGS.

  However, the second embodiment differs from the first embodiment only in that the drive system includes an internal combustion engine and the navigation control unit includes a remaining amount management unit and a replenishment time storage unit. It is different. And since the other structure is common, the same code | symbol is attached | subjected about the same component and the detailed duplication description is abbreviate | omitted.

  As shown in FIG. 7, the plug-in hybrid vehicle includes a drive system 51 for driving the vehicle and a navigation system 52 as a charging guide device mounted on the vehicle.

  First, the drive system 51 includes a fuel tank 7 that can store fuel, and an internal combustion engine 8 that generates power by burning the fuel supplied from the fuel tank 7. The fuel tank 7 is connected to a remaining amount detection sensor 9 for detecting the remaining amount of fuel stored in the fuel tank 7 (remaining fuel amount).

  The remaining fuel amount detected by the remaining amount detection sensor 9 is output to the navigation control unit 54 by the control unit 19 together with the SOC value calculated by the battery computer 22 (the remaining power amount of the battery 14).

  On the other hand, the navigation control unit 54 of the navigation system 52 includes a remaining amount management unit 56 that acquires the remaining fuel amount and the SOC value output from the control unit 19 and temporarily stores them in a memory (not shown). The history data storage unit 32 stores fuel consumption amount data 57 in addition to the history data 40.

  Furthermore, the navigation control unit 54 includes a replenishment time storage unit 58 as a storage unit that stores a replenishment time when the fuel is supplied to the fuel tank 7. That is, when the remaining fuel amount is updated in the remaining amount management unit 56, the control unit 33 compares the remaining fuel amount stored in the remaining amount management unit 56 with the newly acquired remaining fuel amount. Then, when the newly acquired remaining fuel amount is larger than the remaining fuel amount stored in the remaining amount managing unit 56, the control unit 33 determines that the fuel is supplied to the fuel tank 7, and the fuel is supplied. The replenishment time (in this embodiment, the fuel replenishment date) is stored in the replenishment time storage unit 58. In the present embodiment, the fuel replenishment time is updated every time fuel is newly replenished, and the latest replenishment time is stored.

  Next, based on the flowcharts of the charging guide routines shown in FIGS. 2 to 4 and FIGS. 8 to 14, the control unit 33 performs notification control of the necessity of charging the battery 14 and the possibility of fuel consumption. The processing contents executed by will be described. However, since this charging guidance routine is different only in that the steps shown in FIGS. 8 to 14 are changed in the flowcharts shown in FIGS. 2 to 4, description of similar steps is omitted.

  The charging guidance routine is started when an ignition switch (not shown) of the vehicle is turned “ON”. Further, the position flag is maintained regardless of whether the ignition switch is “ON” or “OFF”, and the position flag is set to 0 in the initial state.

  When an ignition switch (not shown) is turned “ON”, the control unit 33 first executes steps S101 to S110 shown in FIG. When the vehicle leaves the reference point B, the control unit 33 determines that the vehicle is not located at the reference point B in step S104 and determines that the position flag is 0 in step S108. Further, in step S110, the control unit 33 acquires the remaining power amount stored in the battery 14 as the initial power amount based on the SOC value acquired by the remaining amount management unit 56.

  When the process of step S110 ends, as shown in FIG. 8, the control unit 33 is stored in the fuel tank 7 based on the remaining fuel amount acquired by the remaining amount management unit 56 in the next step S110-1. The remaining fuel amount is acquired as the initial fuel amount.

  Then, the control part 33 performs step S111-step S116 shown in FIG. If the route data RD and the link data match, the control unit 33 executes steps S115 and S116 to calculate the power consumption.

  When the process of step S116 ends, as shown in FIG. 9, the control unit 33 acquires the remaining fuel amount acquired by the remaining amount management unit 56 in the next step S116-1. In subsequent step S116-2, the control unit 33 calculates the fuel consumption amount F from the difference between the initial fuel amount acquired in step S110-1 and the remaining power amount acquired in step S116-1.

  In the next step S117, the control unit 33 controls the map drawing unit 30 to display on the display 38 that the history data 40 can be updated, and determines whether there is an update execution command. When the button 41 is operated by the user and execution command information for updating the power consumption is input (step S117: YES), the control unit 33 determines that the reference point B and the route data RD are included in the history data 40. The matching history data 40 is updated (step S118).

  Furthermore, in step S118-1, the control unit 33 determines whether or not the fuel consumption amount F calculated in step S116-2 is greater than zero. And when the fuel consumption F is zero (step S118-1: NO), the control part 33 transfers the process to step S101. On the other hand, when the fuel consumption amount F is greater than zero, the control unit 33 determines that fuel has been used. In step S118-2, the control unit 33 stores the initial power amount E acquired in step S110 and the fuel consumption amount F calculated in step S116-2 in association with the reference point B and the route data RD. Thus, the fuel consumption amount data 57 is created.

  That is, as shown in FIG. 15, the control unit 33 stores the initial power amount E acquired in step S110 and the consumed fuel amount F calculated in step S116-2 in association with the reference point B and the route data RD. To do.

Next, the storage control routine of step S103 will be described based on the flowcharts shown in FIGS.
First, the control unit 33 executes steps S201 to S205 shown in FIG. Then, as shown in FIG. 10, the control unit 33 executes step S205-1 and determines the remaining fuel amount stored in the fuel tank 7 based on the remaining fuel amount acquired by the remaining amount management unit 56 as the initial fuel. Get as a quantity. Then, the control part 33 performs step S206-step S210 shown in FIG.

  Subsequently, as shown in FIG. 11, in step S <b> 210-1, the control unit 33 acquires the remaining fuel amount acquired by the remaining amount management unit 56. Furthermore, in step S210-2, the control unit 33 calculates the consumed fuel amount F from the difference between the initial fuel amount acquired in step S205-1 and the remaining fuel amount acquired in step S210-1.

  Thereafter, the control unit 33 executes Steps S211 to S214, and in subsequent Step S215, the control unit 33 determines whether or not the fuel consumption amount F calculated in Step S210-2 is greater than zero. When the fuel consumption amount F is zero (step S215: NO), the control unit 33 ends the storage control routine. On the other hand, when the amount of consumed fuel is greater than zero (step S215: YES), the control unit 33 determines that the fuel has been used. In step S216, the control unit 33 stores the initial power amount E acquired in step S205 and the fuel consumption amount F calculated in step S210-2 in association with the reference point B and the route data RD. Fuel consumption data 57 is created.

Next, the notification control routine of step S107 will be described based on the flowcharts shown in FIGS.
Now, as shown in FIG. 12, in step S300-1, the control unit 33 acquires the fuel replenishment date stored in the replenishment time storage unit 58, and in step S300-2, the holding period from the fuel replenishment date. It is determined whether or not elapses. Therefore, the control unit 33 also functions as a period determination unit. The holding period is a period (for example, about 3 months to 6 months) in which fuel such as gasoline that deteriorates with time can be used without any problem, and depends on the size of the fuel tank 7 and the like. This is a preset period.

  If the holding period has elapsed since the fuel replenishment date (step S300-2: YES), in step S300-3, the control unit 33 controls the map drawing unit 30 to use the fuel on the display 38. By displaying an image prompting the user, the user is notified of the necessity of using the fuel. On the other hand, when the replenishment period has not elapsed since the refueling date (step S300-2: NO), the control unit 33 shifts the process to step S301.

  And as shown in FIG. 4, the control part 33 performs step S301-step S304. That is, the number of route data RD stored corresponding to one reference point B where the vehicle is currently located is one (step S303: NO) and stored in association with the reference point B. If the power consumption C is greater than or equal to the remaining power (step S304: YES), the control unit 33 shifts the process to step S304-1.

  As shown in FIG. 13, in step S304-1, the control unit 33 includes the initial power amount E of the fuel consumption amount data 57 stored in association with the reference point B where the vehicle is currently located, in step S304-1. It is determined whether there is data that matches the amount of remaining power acquired in S302. It should be noted that “matching” includes substantially matching, and is considered to match if it is within a predetermined difference, for example, within an error of 3%. When there is fuel consumption amount data 57 in which the remaining power amount and the initial power amount E match (step S304-1: YES), in step S304-2, the control unit 33 responds to the matching initial power amount E. The fuel consumption amount F that is stored in addition is acquired. In step S305, the control unit 33 controls the map drawing unit 30 to notify that charging is necessary, and displays the acquired consumed fuel amount F on the display 38 as a saved fuel amount that can be saved by charging. (Notification control stage). Therefore, the control unit 33 also functions as a saved fuel amount acquisition unit.

  On the other hand, when there is no fuel consumption amount data 57 that can be considered that the remaining power amount and the initial power amount E match (step S304-1: NO), the control unit 33 proceeds to step S305, and the map drawing unit. 30 is informed that charging is required, and is informed that fuel is consumed when not charging (notification control stage).

  If it is determined in step S303 shown in FIG. 4 that the number N of route data RD is 2 or more (step S303: YES), in step S306, the control unit 33 determines that the Nth power consumption is the step. It is determined whether or not it is greater than the remaining power amount acquired in S302. When the Nth power consumption amount is equal to or greater than the remaining power amount (step S306: YES), the control unit 33 shifts the process to step S306-1.

  As shown in FIG. 14, in step S306-1, the control unit 33 matches each path data RD determined that the power consumption amount C is equal to or greater than the remaining power amount, and acquired in step S302. It is determined whether or not a fuel consumption amount F that matches the remaining power amount is stored in the fuel consumption amount data 57. As in step S304-1, the term “match” includes substantially matching, and is considered to match if it is within a predetermined difference, for example, within an error of 3%.

  When the reference point B where the vehicle is currently located and the route data RD coincide with each other and the initial electric energy E that coincides with the remaining electric energy acquired in step S302 is stored (step S306-1: YES). In step S306-2, the control unit 33 acquires the fuel consumption amount F stored in association therewith. Furthermore, in step S307, the control unit 33 controls the map drawing unit 30 to notify that charging is necessary, and displays the acquired fuel consumption F on the display 38 as a saved fuel amount that can be saved by charging. (Notification control stage).

  On the other hand, when the fuel consumption amount data 57 matching the reference point B where the vehicle is currently located and the route data RD are not stored, or the initial power amount E matching the remaining power amount is stored in the fuel consumption amount data 57. When there is not (step S306-1: NO), the control unit 33 proceeds to step S307. In step S307, the control unit 33 controls the map drawing unit 30 to notify that charging is necessary, and if not charging, informs that fuel is consumed (notification control stage). ).

Next, the operation in the case of guiding the charging when the vehicle reaches the reference point B again after leaving the reference point B will be described with reference to FIGS. 15 and 16.
As shown in FIG. 15, the fuel consumption amount data 57 stored in the history data storage unit 32 includes the reference point B, route data RD, initial power amount E, and fuel consumption amount F for each fuel consumption amount data. Are stored in association with each other.

  Specifically, among the consumed fuel amount data 57, for example, the first consumed fuel amount data b1 is associated with the home data stored as the reference point B in the first history data a1 and the route data RD1, and the initial power amount. E11 and fuel consumption amount F11 are stored.

  The second and third consumed fuel amount data b2 and b3 are associated with the home data stored as the reference point B in the second history data a2 and the route data RD2, and the initial power amounts E21 and E22 and the consumed fuel amount. F21 and F22 are stored respectively.

  Similarly, each fuel consumption amount data (only the first consumption fuel amount data b1 to the fifth consumption fuel amount data b5 are shown in FIG. 15) is stored in the reference point B and route data RD stored in the history data 40. An initial power amount E and a fuel consumption amount F are stored in association with each other.

  When the vehicle reaches the home 43 with the history data 40 shown in FIG. 5 and the fuel consumption amount data 57 shown in FIG. 15 stored in the history data storage unit 32, the navigation system 52 needs to charge the battery 14. And the possibility of fuel consumption.

  That is, for example, when the vehicle is driven on Monday and reaches the home 43, the control unit 33 stores the power consumption C stored in association with the next day of the week (Tuesday) in the history data 40a. And the amount of remaining power are compared. In FIG. 5, Tuesday is included in the days of the first history data a1 and the second history data a2, so the power consumption amounts C1 and C2 are compared with the remaining power amount.

  FIG. 16 shows the display 38 displayed when the power consumption amount C1 is smaller than the remaining power amount and the power consumption amount C2 is larger than the remaining power amount (C1 <remaining power amount <C2). . That is, the route 1 that travels with the route data RD1 can travel based on the amount of remaining power stored in the battery 14, and thus is informed that charging is unnecessary. Further, the saved fuel amount is displayed as 0 L.

  Further, the route 2 that travels using the route data RD2 cannot travel based on the remaining power amount stored in the battery 14, and therefore travels using the internal combustion engine 8 on the way. For this reason, the route 2 is displayed as charging required, thereby informing the necessity of charging.

  Further, for example, the remaining power amount at this time is equal to, for example, the initial power amount E21 among the initial power amounts E21 and E22 stored in association with the home and route data RD2 as the reference point B in the fuel consumption amount data 57. Suppose you are doing it. Then, the fuel consumption amount F21 (for example, 10L) stored in association with the initial power amount E21 is displayed on the display 38 in association with the route 2 as the amount of saved fuel that can be saved by charging.

  Further, as shown in FIG. 16, the display 38 includes the first history data a1 and the second history data together with an icon indicating the home 43 serving as a reference point and a landmark indicating the company 44 located in the middle of the route. The roads corresponding to the links L1, L2, L3, L4, L5, and L6 of the route data RD of a2 are identified and displayed, for example, by color.

According to the said 2nd Embodiment, in addition to the effect of (1)-(4) in 1st Embodiment, the following effects can be acquired further.
(5) The position when the recording start command information is input by the button 41 is stored as the reference point B, and the power consumption stored in association with the reference point B when the vehicle reaches the reference point B The charging can be guided based on the amount C. Furthermore, by notifying the possibility of fuel being consumed together with the necessity for charging, the user's awareness of charging can be enhanced. Specifically, for example, by storing a point (home, office, etc.) that is expected to reach in the future as the reference point B, when the reference point B is reached again, the same reference point B is departed in the past. Then, the consumption power amount C consumed and the remaining power amount are compared to notify the necessity of charging and the possibility of fuel consumption. This improves the reliability of the notification and estimates the amount of power required for the next run regardless of the destination setting operation to guide the charge, so that a sufficient amount of charge can be obtained when the vehicle starts running. Can be secured.

  (6) The display 38 can notify the necessity of charging, and can notify the amount of saved fuel that can be saved by charging. Therefore, the user's charging consciousness can be further improved.

  (7) The fuel supplied to the fuel tank 7 deteriorates with the passage of time. In that regard, when the holding period has elapsed since the fuel replenishment date when the fuel was replenished, the display 38 notifies the necessity of the use of the fuel, so that the use of the fuel can be urged with a low degree of deterioration.

In addition, you may change the said embodiment as follows.
In the above embodiment, the history data 40 may not store both the route data RD and the day information, or any one of them. That is, it is sufficient that at least the reference point B and the power consumption amount C are stored in association with each other.

In the above embodiment, the day of the week stored as the history data 40 may be input by the user.
In the above embodiment, the point where the recording end command information is input may be stored in association with the reference point B without storing the route data RD. Then, when the vehicle travels between the reference point B and the point where the record end command information is input, the history data 40 may be updated by calculating the power consumption amount C.

  In the above-described embodiment, the power consumption amount C stored in association with the reference point B is stored as the power consumption amount C among the power amounts consumed in a plurality of times of travel. Good. Further, even when the power consumption amount C is set by averaging, a value greatly deviating from the average value (for example, 50% increase / decrease) may be excluded as an abnormal value. Further, the amount of power consumed when traveling on the same link L may be reflected in the power consumption amount C regardless of the operation of the button 41 by the user.

  In the above embodiment, even when the vehicle travels on the link L of the route data RD stored in the history data storage unit 32, the history data 40 only when the user inputs the recording start command information and the recording end command information. You may make it update.

  In the above embodiment, the number of times the vehicle has traveled the link L of the route data RD is stored in association with the route data RD, and when the vehicle reaches the reference point B, it is stored in association with the route data RD having a large number of travels. The necessity of charging may be determined based on the power consumption amount C. If the current position falls within the range of a plurality of reference points B, the charging may be guided based on the reference point B having the larger number of times of traveling, or the closer reference point B. You may make it guide charging based on.

  In the above embodiment, when the recording start command information is input within the range of the reference point B (for example, within a radius of 100 m centered on the reference point), the current position and the reference point B are deviated. Even so, the reference point B and the power consumption C may be stored in association with each other.

  In the above embodiment, the range regarded as the reference point B is arbitrarily set depending on the type of the vehicle on which the navigation system 12 is mounted and the conditions around the reference point B (residential area, mountainous area, etc.) and can be changed by the user. You may do it.

  In the above embodiment, the reference point B may be set only when it is determined that the reference point B is a point where the battery 14 can be charged, or when the user inputs that the reference point B can be charged. Good.

  In the above embodiment, the input of the recording start command information and the recording end command information and the designation of the destination may be performed by voice recognition using a touch panel display or a voice recognition unit (not shown). In addition, for guidance such as charging, the necessity for charging may be notified together with the possibility of fuel consumption using voice, an alarm, a light, or the like.

  In the above embodiment, the time information may be stored in association with the reference point B and the power consumption amount C. That is, for example, when “evening” is stored as time information in association with the reference point B, and “am” is reached at the reference point B, the remaining power amount and “evening” are set. The charging may be guided by comparing with the power consumption amount C stored in association therewith. Furthermore, the reliability of guidance can be further improved by storing day-of-week information and time information in association with each other.

  In the above embodiment, the navigation systems 12 and 52 may be mounted on a hybrid vehicle other than a plug-in hybrid vehicle that includes two drive sources including an internal combustion engine and an electric motor.

  In the second embodiment, the fuel replenishment time may not be stored and the fuel use may not be prompted. In addition, the holding period may be set in two stages, and when the fuel is not used even after the use of the fuel is notified, the replacement of the fuel may be notified.

  In the second embodiment, the holding period may be changed according to the remaining fuel amount in the fuel tank 7 and the ambient conditions such as the temperature. That is, since fuel changes in quality when it comes into contact with air, for example, the holding period may be set longer as the amount of remaining fuel in the fuel tank 7 is larger and the contact area with air is smaller.

  -In the said 2nd Embodiment, when guiding the necessity for charge, it should just alert | report that the consumption of fuel can be suppressed by charging. That is, it is only necessary to notify whether or not fuel can be saved without notifying the numerical value as the amount of saved fuel.

  In the second embodiment, the consumed fuel amount data 57 may not be stored. For example, a fuel saving amount per unit power amount (a fuel amount that can be saved by charging 1 kW) is stored, and a fuel amount that can be saved may be calculated from a difference between the power consumption amount and the remaining power amount. . Further, when the consumed fuel amount F corresponding to the consumed fuel amount data 57 is not stored, the consumed fuel amount F may be calculated. Further, when calculating the fuel consumption amount F, the fuel consumption amount F may be corrected according to the road type (general road, highway, gradient, etc.), time zone, and the like.

  -In the second embodiment, when fuel is replenished during travel, the amount of consumed fuel F is calculated by adding the replenished fuel amount to the difference between the initial fuel amount and the remaining fuel amount. May be.

  DESCRIPTION OF SYMBOLS 7 ... Fuel tank, 8 ... Internal combustion engine, 12, 52 ... Navigation system (charging guidance apparatus), 14 ... Battery (storage battery), 18 ... Motor, 25 ... Own vehicle position calculating part (current position acquisition means), 29 ... Running History acquisition unit (storage control unit), 32 ... History data storage unit (storage unit), 33 ... Control unit (determination unit, notification control unit, saved fuel amount acquisition unit, period determination unit), 38 ... Display (notification unit) , 41 ... button (input means), 58 ... replenishment time storage unit (storage unit), B ... reference point, C (C1-C5) ... power consumption, L (L1-L9) ... link, RD ... route data.

Claims (9)

A charging guide device that is mounted on a vehicle that can travel using a motor that rotates with electric power stored in a storage battery as a drive source, and that guides charging of the storage battery,
Current position acquisition means for acquiring the current position of the vehicle;
Input means for inputting recording start command information and recording end command information of the amount of power consumed as the vehicle travels;
The current position when the recording start command information is input is acquired as a reference point, and the power consumption from when the recording start command information is input to when the recording end command information is input is acquired. Storage control means for storing the power consumption amount in the storage unit in association with the reference point;
Determining means for determining whether the vehicle has reached the reference point based on the current position;
When the vehicle reaches the reference point, the amount of power stored in the storage battery is acquired as a remaining power amount, and the power consumption amount stored in the storage unit in association with the reference point is the remaining power amount. A charging guide device comprising: a notification control unit that notifies the notification unit of the necessity of charging the storage battery when the amount of electric power is greater than the amount of power. The storage control means associates the route traveled by the vehicle from the input of the recording start command information to the input of the recording end command information in the storage unit in association with the reference point and the power consumption amount. When the vehicle travels along a route that matches the route, the power consumption amount stored in the storage unit is stored in association with the route by the amount of power consumed as the vehicle travels along the route. The charging guide device according to claim 1, wherein correction is performed. In the case where a plurality of the routes are stored corresponding to one reference point, the notification control unit needs to charge the storage battery for each route when the vehicle reaches the reference point. The charging guide device according to claim 2, wherein the notification unit is made to notify the property. The storage control means further associates day of the week information with the reference point and the power consumption, and stores it in the storage unit,
When the vehicle reaches the reference point, the notification control unit causes the notification unit to notify the necessity of charging of the storage battery based on the day-of-week information stored in association with the reference point. The charging guide device according to any one of claims 1 to 3, characterized in that: Equipped with a motor that rotates with electric power stored in a storage battery and an internal combustion engine that generates power by burning fuel stored in a fuel tank, and using at least one of them as a drive source A charging guide device,
Current position acquisition means for acquiring the current position of the vehicle;
Input means for inputting recording start command information and recording end command information of the amount of power consumed as the vehicle travels;
The current position when the recording start command information is input is acquired as a reference point, and the power consumption from when the recording start command information is input to when the recording end command information is input is acquired. Storage control means for storing the power consumption amount in the storage unit in association with the reference point;
Determining means for determining whether the vehicle has reached the reference point based on the current position;
When the vehicle reaches the reference point, the amount of power stored in the storage battery is acquired as a remaining power amount, and the power consumption amount stored in the storage unit in association with the reference point is the remaining power amount. And a notification control means for notifying the notification unit of the necessity of charging the storage battery and the possibility of consuming the fuel when the amount of electric power is greater than the amount of electric power. A fuel saving amount acquisition means for acquiring, as a fuel saving fuel amount, a fuel amount that can be saved by charging based on a difference between the remaining power amount and the power consumption amount;
When the vehicle reaches the reference point, the notification control unit saves the power consumption when the power consumption stored in the storage unit in association with the reference point is larger than the remaining power amount. The charging guide device according to claim 5, wherein the notification unit notifies the saving fuel amount acquired by a fuel amount acquisition unit. A storage unit for storing a supply time when the fuel is supplied to the fuel tank;
Period determining means for determining whether or not a pre-stored holding period has elapsed since the fuel was replenished based on the replenishment time stored in the storage unit,
The said notification control means makes the said alerting | reporting part alert | report the necessity of the use of the said fuel, when the said period determination means judges that the said holding | maintenance period has passed. The charging guide device according to 1. A charging guidance method for guiding charging of the storage battery in a vehicle capable of traveling by using a motor that rotates by electric power stored in the storage battery as a drive source,
A current position obtaining step for obtaining a current position of the vehicle;
A reference point storage stage for storing the current position as a reference point when the recording start command information of the power consumption consumed with the traveling of the vehicle is input;
A power consumption storage step for storing the power consumption from the input of the recording start command information to the input of the recording end command information in association with the reference point;
A remaining power amount acquisition step of acquiring, as the remaining power amount, the amount of power stored in the storage battery when the vehicle reaches the reference point;
And a notification control step of notifying the notification unit of the necessity of charging of the storage battery when the amount of power consumption stored in association with the reference point is larger than the remaining power amount. Guidance method. In a vehicle that includes a motor that rotates by electric power stored in a storage battery and an internal combustion engine that generates power by burning fuel stored in a fuel tank, and that can travel using at least one of them as a drive source. A charging guidance method for guiding charging of a storage battery,
A current position obtaining step for obtaining a current position of the vehicle;
A reference point storage stage for storing the current position as a reference point when the recording start command information of the power consumption consumed with the traveling of the vehicle is input;
A power consumption storage step for storing the power consumption from the input of the recording start command information to the input of the recording end command information in association with the reference point;
A remaining power amount acquisition step of acquiring, as the remaining power amount, the amount of power stored in the storage battery when the vehicle reaches the reference point;
A notification control step of notifying the notification unit of the necessity of charging the storage battery together with the possibility that the fuel is consumed when the amount of power consumption stored in association with the reference point is larger than the remaining power amount. A charging guide method comprising: and.

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