JP5397348B2 - Fuel saving driving support system, fuel saving driving support method, program and medium - Google Patents

Description

  The present invention relates to a fuel-saving driving support system, a fuel-saving driving support method, a program, and a medium that are suitable for vehicles such as passenger cars, trucks, and buses.

  In recent vehicles, devices for realizing various functions in the vehicle and ECUs (Electronic Control Units) corresponding to the devices are indispensable constituent requirements. The number of in-vehicle devices including a device and an ECU mounted on a vehicle tends to increase year by year, and the power consumption of the entire vehicle increases as the number of mounted devices increases.

  The increase in the number of installed vehicles also causes a relative increase in fuel consumption to cover power consumption that does not contribute to driving compared to fuel consumption to cover power consumption associated with driving, which is the original function of the vehicle. . That is, this becomes a factor that deteriorates fuel consumption.

  In addition, there is a strong demand for prevention of global warming and energy saving in the current social situation, and there is a tendency for users to be more conscious of environmental considerations and to reduce the economic burden due to the rise in fuel caused by high crude oil.

  Therefore, it is required to suppress fuel consumption that does not contribute to traveling as much as possible. As a technique for this, for example, there is one described in Patent Document 1. Patent Document 1 discloses that power consumption of an in-vehicle load that is not essential for driving and that can be operated for power consumption is detected, and power saving control is performed based on the detection result.

JP 2003-220907 A

  However, in the above-described conventional technology, it is difficult for the user to understand which function, which does not contribute to driving, and which power saving is effective in reducing fuel consumption, the user's intention, driving conditions and external environment Regardless of the situation including, etc., individual functions are cut off simply by threshold control to save power. For this reason, there is a problem that the user's awareness of the fuel consumption and the specific method for fuel saving is not sufficient, and it is difficult to reduce the fuel consumption while reflecting the intention and scene of each user. .

  In view of the above problems, an object of the present invention is to provide a fuel-saving driving support system, a fuel-saving driving support method, a program, and a medium that can realize more user-friendly power saving control and fuel-saving driving.

In order to solve the above problem, the fuel-saving driving support system according to the present invention is:
A setting means for setting a target reduction amount of the power consumption of the vehicle based on the input of the fuel saving target value of the user;
In each of a plurality of in-vehicle devices, the presence / absence of a power saving unit that switches the power consumption of the in-vehicle devices and / or the reduction in power consumption for each function of the in-vehicle devices in stages, and the power saving Power management means for managing the individual function power information including the amount of reduction for each stage of the unit, and restrictions associated with the amount of reduction,
Environment management means for managing external environment information that is a determination element of whether or not the stage of the power saving unit is selectable or unsuccessful;
The reduction amount for each power saving unit that satisfies the target reduction amount is determined based on the individual function power supply information and the external environment information, the reduction amount, the restrictions on the reduction amount, and the plurality of in-vehicle units A power generation plan that includes a planned reduction amount that is a total value of the reduction amounts for the entire device.

In order to solve the above-described problem, a fuel-saving driving support method according to the present invention includes:
A setting step for setting a target reduction amount of the power consumption of the vehicle based on the input of the fuel saving target value of the user;
In each of a plurality of in-vehicle devices, the presence / absence of a power saving unit that switches the power consumption of the in-vehicle devices and / or the reduction in power consumption for each function of the in-vehicle devices in stages, and the power saving A power management step for managing the individual function power information including the reduction amount for each stage of the unit and the restrictions associated with the reduction amount;
An environment management step for managing external environment information which is a determination element of whether or not the stage of the power saving unit can be selected;
The reduction amount for each power saving unit that satisfies the target reduction amount is determined based on the individual function power supply information and the external environment information, the reduction amount, the restrictions on the reduction amount, and the plurality of in-vehicle units And a formulation step of formulating a power supply plan including a planned reduction amount that is a total value of the reduction amounts in the entire device.

In order to solve the above problems, a program according to the present invention is as follows.
A program for causing a computer to execute the fuel-saving driving support method.

In order to solve the above problems, the medium according to the present invention is:
A medium storing the program.

  The present invention provides a fuel-saving driving support system, a fuel-saving driving support method, a program, and a medium that realize more user-friendly power-saving control and fuel-saving driving in consideration of various requests of individual users. be able to.

It is a block diagram showing one embodiment of a fuel-saving driving support system according to the present invention. It is a schematic diagram which shows the specific form of the display screen to the user in the fuel-saving driving | operation assistance system which concerns on this invention. It is a schematic diagram which shows the map which shows the outline | summary of the individual function power supply information used for control of the fuel-saving driving | operation assistance system which concerns on this invention. It is a schematic diagram which shows the map which defined the priority for every step | level of the function provided for control of the fuel-saving driving | operation assistance system which concerns on this invention. It is a flowchart which shows the detail of the control content of the fuel-saving driving | operation assistance system which concerns on this invention. It is a flowchart which shows the detail of the control content of the fuel-saving driving | operation assistance system which concerns on this invention.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a schematic diagram illustrating an embodiment of a fuel-saving driving support system 1 according to the present embodiment. FIG. 22 is a schematic diagram showing a specific form of the display screen of the display 3 in the fuel-saving driving support system 1 of the present embodiment.

  As shown in FIG. 1, a fuel-saving driving support system 1 according to this embodiment includes a multimedia ECU 2, a display 3, a hard disk 4, an AM / FM radio 5, and a DVD player 6 mounted on one vehicle. And a navigation system 7, an air conditioner ECU 8, a body ECU 9, and a plurality of in-vehicle devices including an ECU.

  In this embodiment, the vehicle is controlled by an in-vehicle device such as an AM / FM radio 5 and a DVD player 6 and a navigation system 7, a multimedia ECU 2 that is an in-vehicle device that comprehensively controls these in-vehicle devices, and the multimedia ECU 2. An integrated multimedia system is configured by the display 3.

  The multimedia ECU 2 includes, for example, a CPU, a ROM, a RAM, an EEPROM, a data bus that interconnects them, and an input / output interface, and executes predetermined processing and control described below according to a program stored in the flash memory. . Thereby, the multimedia ECU 2 constitutes a setting unit 2a, a power management unit 2b, an environment management unit 2c, a formulation unit 2d, a presentation unit 2e, a control unit 2f, and a power saving unit 2g.

  The air conditioner ECU 8 having the power saving unit, the body ECU 9, the other ECU having the power saving unit, and the other ECU having no power saving unit, for example, CPU, ROM, RAM, EEPROM, and data for interconnecting them, respectively It is composed of a bus and an input / output interface, and executes predetermined processing and control according to a program stored in the flash memory. The ECUs described above are connected to each other according to a communication standard such as CAN (Controller Area Network) (not shown) to form an external system for the multimedia system.

  The power saving unit 2g included in the multimedia ECU 2 and the power saving units included in the other ECUs are capable of turning on and off the entire in-vehicle device including, for example, semiconductor switching elements such as MOSFETs, IGBTs, IPMs, or relays. A switch on the hardware and logic for stopping a specific function for each function are included as appropriate.

  As a result, the power saving unit reduces the amount of power consumption for each function included in the in-vehicle device as a whole and / or for each in-vehicle device as the control subject from zero to the total power consumption. Switching is performed with one or more stages to realize on / off or power saving.

  Here, one stage means that only on / off is performed, and two or more stages have one or more intermediate stages in addition to on / off, thereby reducing power consumption partially. It means that the standby mode and the off mode are realized.

  The setting means 2a displays the setting screen D1 at the upper left in FIG. 2 by a touch panel included in the display 3, and for example, does not perform energy saving setting (does not input a fuel saving target value) for the user, and 80% , 50% and 20% of fuel saving target values can be selected, the currently set period is 7 days, and the average operating time is 2.0H / day as appropriate. This is indicated by the icon display.

  When the user corresponding to this notification selects one of the three fuel saving target values, here 80% fuel saving target value, and touches the icon on the screen and inputs it, the user's fuel saving target value is entered. Based on the input of the target value, the target reduction amount of the power consumption of the vehicle is set by multiplying the reference value of the power consumption of the entire vehicle by a value obtained by dividing the fuel consumption target value from 100%.

  Here, the reference value refers to the power consumption of the entire vehicle in a state where the user does not intend to save fuel. For example, during the time when the average driving time is multiplied by the set period described above, all on-vehicle devices are turned on. It is the power consumption that is expected to be consumed in this state, and is a value that is determined as appropriate by experiment, simulation, or integration of design values.

  The power management means 2b has the above-described stages for the power consumption of the in-vehicle device and / or the reduction of the power consumption for each function of the in-vehicle device in each of the plurality of in-vehicle devices described above. The individual function power supply information including the presence / absence of the power saving unit to be switched, the reduction amount for each stage of the power saving unit, and restrictions associated with the reduction amount is managed.

  Details of the form of the individual function power supply information will be described in detail with reference to FIG. FIG. 3 is a map exemplarily showing the form of the individual function power supply information of this embodiment. As shown in FIG. 3, the individual function power supply information has, as attribute information, an ECU name that is an in-vehicle device that is a control subject and a function name that the ECU has, and the power on / off for each ECU. Matrix of availability, availability of on / off for each function, availability of off mode and standby mode, reduction of power consumption when any of these is selected, and contradictions or restrictions associated with power consumption reduction The database is stored in a state and hierarchically, and is stored and stored in the hard disk 4 under the management of appropriate addition correction, deletion, update, reading, etc. by the power management means 2b.

  In FIG. 3, MMECU indicates the multimedia ECU 2 of the present embodiment, and ACECU indicates the air conditioner ECU8. For example, the multimedia ECU2 body includes a power saving unit 2g that can be turned on and off for each ECU. The on / off for each ECU and the standby mode indicated by StandBy in FIG. 3 are possible, and when the power is turned on, that is, when all functions are turned on, the power consumption is A1 mW, the reduction amount is zero, and there is no contradiction or restriction.

  In the standby mode, the reduction amount is -A2 mW. In the off mode in which the memory holding power supply is off, the reduction amount is -A3 mW. In the complete off state without the memory holding power supply, the reduction amount is -A4 mW, the amount of reduction is large in this order, and the degree of restriction is also disadvantageous to the user in this order.

  Regarding selection of on / off, off mode or standby mode for each function, for example, AM / FM, which is a function for controlling the AM / FM radio 5, can be performed for each function. Is -a12 mW, and when it is off, the amount of reduction is -a13 mW. The amount of reduction increases in this order, and the degree to which the restriction items are disadvantaged to the user in this order also increases.

  Similarly, NAVI (navigation), which is a function for controlling the navigation system 7, can be selected for each function. The standby mode is fast startup, the standby mode is slow to start, and the memory holding power supply is off. The amount of reduction increases in a certain off mode and in the order of turning off the power supply for holding the memory, and the degree of restriction is also disadvantageous to the user, such as an increase in the required startup time in this order. The same applies to DVD, which is the function of the MMECU, on / off of the entire ACECU, selection of the standby mode, and Temp Cont (temperature adjustment function) of the ACECU. Further, the reduction amount and the restrictions are the same for other ECUs having a power saving unit.

  The environment management means 2c uses the multimedia system in which the multimedia ECU 2 controls the external environment information, which is a determination factor of whether or not the power saving unit can be selected, as its own system. In the case of an external system including an ECU other than an ECU that does not have a power saving unit and the own system of the support system, it is detected in both the own system and the external system, stored in the hard disk 4, and appropriately added, modified, or deleted Management including update, read, etc. Here, the external environment information includes, for example, the following items.

An exemplary item of external environment information.
Information on time (date and time information: acquired from the timekeeping function of the multimedia ECU 2 main body or the navigation system 7)
-Information on the position (current position of the vehicle, departure place, destination, customary location information, etc .: acquired from the navigation system 7)
-Information on roads (types of roads on which vehicles are traveling, traffic information, information attached to roads such as the presence or absence of tunnels and railroad crossings, etc .: obtained from navigation system 7)
・ Information on the outside of the vehicle (illuminance outside the vehicle, temperature outside the vehicle, weather, etc .: obtained from the navigation system 7)
・ Information related to user behavior history (running history linked to date and time, on-off selection history according to in-vehicle device manual, on-off and setting history for each function, monthly, weekly, daily behavior pattern and schedule, etc .: past (Each ECU obtains and the multimedia ECU2 is aggregated during the specified period)
The formulating means 2d determines the priority of selection / non-selection of the stage of the power saving unit of the in-vehicle device for each vehicle state based on the stage included in the individual function power supply information and the external environment information. More specifically, the state of the vehicle is determined from a combination of the above-described items of the external environment information. For example, the state A (for example, commuting + low temperature + general road), the state B (for example, leisure + high temperature + high speed). Road) State C (pick-up + low temperature + general road) to state N are determined as appropriate. The determined priorities are aggregated into matrix priority information as shown in FIG. 4, for example, and this priority information is stored in the hard disk 4 as shown in FIG. 1 under the management of the formulating means 2d. It is.

  This priority order is determined based on, for example, the following knowledge and technical idea. For example, in commuting, the start time and end time of driving are almost uniform regardless of the day of the week and date, the starting place and the arriving place are almost uniform and regular, and the route on which the vehicle travels is almost the same. . For this reason, the route search function by the navigation system 7 and the display function for peripheral facilities are less necessary, and the electric seat position adjustment function by the body ECU 9 is only required for the driver's seat, and is less necessary for the passenger seat rear seat. Further, since the windows are often opened during the commuting time, the necessity for the anti-fogging function such as the temperature adjustment function, the ventilation function, and the defogger by the air conditioner ECU 8 is low.

  On the other hand, in leisure, that is, leisure time driving, the driving start time, end time, driving start location, arrival location, and driving route vary from date to date, and the function of the navigation system 7 is highly necessary. The necessity of various functions including the electric seat position adjustment function according to is particularly high at the start of operation and is somewhat reduced after the start. Therefore, the level of necessity is determined for each state, and the lower the necessity is, the lower the priority order can be set, and the priority order among the states can be appropriately determined.

  For example, in the NAVI of the function of the multimedia ECU 2 already described, there are five stages from ON to complete OFF, and when Levels 1 to 5 are set in ascending order of reduction including these zeros, Based on the reference to the external environment information, as shown in the upper part of FIG. 4, the level 1 is defined as 6 in the state A, 3 in the state B, and 9 in the state C. Note that the smaller the priority number, the higher the priority. As described above, the number indicating the priority order is appropriately determined according to the degree of request that the function is required in each state.

  Further, if necessary, the in-vehicle device that is frequently turned off in the past and the in-vehicle device that is already turned off at the time when the fuel saving target value is input are determined as those having the lowest priority. . The priority determination mode is the same for the AM / FM function, the DVD function, the temperature adjustment function of the air conditioner ECU 8, the seat position adjustment function of the body ECU 9, and the mirror position adjustment function.

  The formulation unit 2d determines a reduction amount for each power saving unit that satisfies the target reduction amount based on the individual function power supply information and the external environment information. More specifically, the formulation unit 2d determines a reduction amount for each power saving unit that satisfies the target reduction amount and a planned reduction amount that is the total value based on the priority order determined by itself.

  In other words, the formulation unit 2d targets any combination of the above-described in-vehicle devices as a reduction target, and selects which in-vehicle device among the selected in-vehicle devices is set to the on / off or standby mode, or includes the in-vehicle device. Whether the on / off or standby mode is set for each function is selected in order from the lowest priority. In other words, the formulation unit 2d formulates a power supply plan including the reduction amount for each in-vehicle device or function and the restrictions on the reduction amount and the planned reduction amount that is the total value of the reduction amounts for the plurality of in-vehicle devices.

  The presenting means 2e uses the display 3 to present the power supply plan to the user by displaying a second target confirmation screen D2 from the upper left side in FIG. Here, the target confirmation screen D2 corresponds to “cost saving”, that is, “energy saving”, that is, the fuel saving target value (here, equal to the planned reduction amount) is 80%, and is converted from the fuel saving target value by a known method. The cost reduction effect is 1200 yen, and the earned eco-points converted by a well-known method is 50 pt for Company A and 8 pt for Company C. It shows that the temperature is 25 degrees, the seat function is stopped, and the NAVI function is in a standby state.

  At the same time, the target confirmation screen D2 presents an approval input “Yes” when the user approves the power supply plan and an unapproved input “No” when the user does not approve. When the user touches the icon indicating “Yes” and inputs an approval in response to the target confirmation screen D2, the formulation unit 2d determines the power supply plan.

  When the user touches the “No” icon in response to the second target confirmation screen D2 from the upper left side in FIG. 2 accompanying the presentation of the power supply plan and makes a non-approval input, the presentation means 2e Displays a target change screen D3 at the center in FIG. 2 that prompts the user to change the fuel saving target value.

  The target confirmation screen D3 displays the change input “change target value” on the left side of the screen, or the user cancels the individual reduction amount included in the presented power supply plan, that is, the vehicle-mounted vehicle presented as the reduction target A release input “change the restricted function” to be released when the user is inconvenienced with respect to the device or function is displayed, and the user can select any one.

  When the user touches the icon “change target value” on the left side of the target confirmation screen D3 and inputs a change, the setting means 2a sets the target reduction amount again and sets the target reduction again. Based on the quantity, the formulating means 2d formulates the power supply plan again. The content formulated again is the target confirmation screen D2 (if the fuel efficiency target value is changed by the user on the setting screen D1 after the target confirmation screen D3, the number of “energy saving” is changed accordingly. To the user again, and prompts the user for a re-approval input “Yes” or a re-non-approval input “No”. When the icon indicating “Yes” is touched and re-approval is input, the formulation unit 2d determines the power supply plan.

  When the user touches “Change Restricted Function” on the target confirmation screen D3 and inputs a release, the presenting means 2e displays the second restricted function change screen D4 from the top in FIG. Is displayed, and the user selects which of the functions listed above and below is to be canceled. Here, the restriction function change screen D4 shows “navigation function”, “air conditioner function”, “electric seat function”, “defogger function”, and “audio function” as examples of functions.

  Further, when the function to be canceled is selected, the stage selected for each function is indicated by the restricted function change screen D5 and is selected by the user. In the restriction function change screen D5, as an example of the stage, when “navigation function” is selected in the restriction function change screen D4 in the previous stage, “always on” “on by user trigger” “on by system trigger” “ “Off in 15 minutes of no operation”.

  The function selected by the user on the restriction function change screen D4 based on the release input and the function associated with the release input and the selection input described above, that is, excluding in-vehicle devices that are inconvenient for the user to save power, After selecting the stage for each function on the restriction function change screen D5, when the restriction function change screen D4 is displayed again by the presentation means 2e and the “OK” icon in the restriction function change screen D4 is touched, the formulation means 2d Re-selects an alternative power supply plan including the target reduction amount and re-selects an alternative power supply plan by selecting an in-vehicle device other than the in-vehicle device that is inconvenient.

  Here, in the case where the planned reduction amount does not reach the target reduction amount, the presenting means 2e directly switches from the constraint function change screen D4 to the target confirmation screen D6, and copes with the target reduction amount re-developed. The user is presented with fuel saving target values and cost reduction effects, earned eco points, and the main functions that are modified and limited.

  When the planned reduction amount does not reach the target reduction amount and the target reduction amount is inevitably changed, the presentation unit 2e switches from the restriction function change screen D4 to the restriction function change screen D7 and formulates again. In the power supply plan, the user is informed that the planned reduction amount does not reach the target reduction amount, that is, the fuel saving target value is not reached, and a proposal for an alternative power supply plan that has been formulated again is made. A display is made to enable an “OK” input when accepting, and an “NO” input when not accepting.

  When “No” is selected and input on the restriction function change screen D7, the presenting means 2e switches from the restriction function change screen D7 to the target confirmation screen D6 to cope with the target reduction amount after being changed and reduced. The fuel saving target value to be displayed is, for example, “energy saving: 75%”, and the accompanying “cost effect: about 1800 yen” “acquired eco point: 52% for company A, 9pt for company C” is displayed. Display restricted features after being reduced.

  When “Yes” is input on the restriction function change screen D7, the presenting means 2e displays the restriction function change screen D8, and in the alternative power supply plan, there are restrictions compared to the previous power supply plan. Display the functions to be released and the functions that receive restrictions instead. In the restriction function change screen D8, the function to be exemplarily canceled is referred to as “navigation function”, and the function subject to restriction instead is referred to as “air conditioner function”.

  In the lower part of the restriction function change screen D7, an approval input “Yes” for accepting an alternative power supply plan is not accepted, and an unacknowledged input “another proposal” for further alternative proposals is not accepted, and an alternative power supply is substituted. Display to enable selection of “cancel” to return to the previous power supply plan and approve it. When “separate proposal” is selected, a power supply plan in which a function different from the function restricted instead of the function exemplified in the restriction function change screen D8 described above is restricted is proposed separately.

  When “Yes” is selected on the restriction function change screen D8, the presentation means 2e switches to and displays the target confirmation screen D6, and the fuel saving target value corresponding to the target reduction amount in the alternative power supply plan And present the user with cost-reduction effect, earned eco-points, and modified limited main functions.

  In other words, in the target confirmation screen D6 and the restriction function change screens D7 to D8, the alternative power supply plan re-designed by the presentation means 2e is confirmed to the user when the fuel saving target value is not achieved. The user is prompted for consent, and the user's consent to the in-vehicle device to be newly reduced is prompted, and then presented to the user.

  At the same time, in the target confirmation screen D6, a re-approval input “Yes” when the user approves the alternative power supply plan that has been re-established and a re-non-approval input “No” when the user does not approve are enabled. When input is made, the formulating means 2d finalizes the redesigned power supply plan, and when a non-approval input is made, the presentation means 2e enables the change input or release input again. The target change screen D3 which is a screen display is displayed.

  The control means 2f selects an in-vehicle device to be reduced among a plurality of in-vehicle devices based on a confirmed power supply plan after the approval input or re-approval input by the user, and each corresponding power saving unit In each power saving unit, on / off, standby mode, and off mode are selected.

  The presenting means 2e monitors the actual power consumption that is the actual value of the power consumption of the vehicle from the start of control, and at the timing when the set period has elapsed, the actual power consumption that is the actual value of the power consumption of the vehicle in the set period Is calculated using the target achievement status screen D9 as a target achievement status. The target achievement status screen D9 indicates that this ratio, that is, the achievement rate is 65%.

  The control contents of the fuel-saving driving support system 1 described above will be described with reference to the flowcharts shown in FIGS.

  As shown in FIG. 5, in step S1, the setting means 2a displays the setting screen D1 in FIG. 2. When the user inputs the fuel saving target value in step S2, the setting means 2a is set in step S3. Reads the set period and fuel efficiency target value.

  In step S4, acquisition of information necessary for the formulation of the power supply plan by the formulation unit 2d is started. In step S5, the formulation unit 2d acquires external management information from the environment management unit 2c. Read management information.

  In step S7, the formulation unit 2d acquires the individual function power supply information shown in FIG. 3 from the power management unit 2b, reads the individual function power supply information in step S8, and selects a function to be restricted in step S9. And formulate a power supply plan.

  In step S10, the formulation unit 2d performs a cost conversion process for converting the cost reduction effect corresponding to the fuel saving target value achieved from the planned reduction amount included in the power supply plan. In step S11, the gasoline cost conversion information In step S12, the formulating unit 2d performs a point conversion process for converting the acquired eco-point corresponding to the fuel saving target value achieved from the planned reduction amount included in the power supply plan, and in step S13, the hard disk The various eco point conversion information stored in 4 is read.

  In step S15, the formulation unit 2d outputs to the presentation unit 2e a power supply plan including an energy saving effect, a list of functions to be restricted, a cost conversion value, and point information. In step S16, the presenting means 2e displays the target confirmation screen D2 of FIG. 2, and in step S17, prompts the user to input approval or non-approval as to whether there is a problem with the target content. If the approval input is made in step S17 and the determination is affirmative, the process proceeds to step S32, and the presenting means 2e displays a setting completion screen using the display 3.

  If the non-approval input is made in step S17 and the result is negative, the process proceeds to step S18, and the presenting means 2e displays the target change screen D3 of FIG. 2, and in step S19, the target change information input, that is, the change input or If the change input is made and the fuel efficiency target value is changed in step S20 after the cancel input is input, 1. If the restricted input is changed and the restricted function is changed, 2. And

  In step S20, 1. In step S2, the presenting unit 2e displays the target confirmation screen D2 in FIG. 2 again. In this case, the process proceeds to step S21, and the presenting means 2e displays the constraint function change screens D4 and D5 in FIG.

  In step S22, the restriction function change information, that is, the function and the stage intended to be released are input by selecting an icon on the restriction function change screens D4 and D5. In step S23, the presenting means 2e is arbitrarily selected by the user in step S22. The restricted function and the stage list set in the above are passed to the formulating means 2d, and the formulating means 2d reads this.

  In step S24, the formulating means 2d formulates the power supply plan again and recalculates the energy saving effect. In step S25, the formulating means 2d determines whether or not the set fuel saving target value is not achieved and is affirmative. In the case, the process proceeds to step S26, and in the case of negative, the process returns to step S9.

  In step S26, the formulation unit 2d creates an alternative plan for the power supply plan based on the user priority input in step S22. In step S27, the formulation unit 2d is subject to restriction with respect to the presentation unit 2e. Outputs a list of functions and energy saving effects.

  In step S28, the presenting means 2e displays the constraint function change screens D7 and D8 in FIG. 2 and proposes an alternative. In step S29, the user has accepted an input to accept the alternative proposal. If the result is negative, the process proceeds to step S30, and the list of restricted functions is transferred to the formulating means 2d. The formulating means 2d reads this, and if the result is affirmative, the process proceeds to step S31. A function list to be transferred to the formulating means 2d is read by the formulating means 2d.

  In step S32 shown at the end of FIG. 5 and at the beginning of FIG. 6, after the presentation unit 2e displays the setting completion screen, in step S33, the control unit 2f starts executing the entire power supply plan, In S34, it is determined whether or not power control is performed in this own system, that is, the multimedia system. If not, the process proceeds to step S35, and other in-vehicle devices outside the own system that do not include the multimedia ECU 2 are entered. A power supply plan for individual functions is created, and in step S36, power control corresponding to the individual functions is executed. In step S37, the control unit 2f executes power control execution information and actual power consumption outside the system itself. Read information.

  In step S34, if the result is affirmative, in step S38, the control means 2f executes power control for each individual function including its own system, and in step S39, the control means 2f includes its own system. Read the power control execution information and actual power consumption information. After step 37 and step 39 are completed, in step S40, the control means 2f manages the power supply state for each individual function, and in step S41, determines whether it is within the set period from the start of control, If the determination is affirmative, the process returns to step S35. If the determination is negative, the process proceeds to step S43.

  In step S42, under the condition that the target achievement status screen D9 shown in FIG. 2 for checking the energy saving effect is read, in step S43, the formulating means 2d calculates the energy saving effect from the actual power consumption information, and the step In S44, a cost conversion process for converting the cost reduction effect is performed. In step S45, gasoline cost conversion information is read. In step S46, the formulating means 2d saves from the planned reduction amount included in the power supply plan. A point conversion process is performed for converting the acquired eco points according to the fuel efficiency target value, and various eco point conversion information stored in the hard disk 4 is read in step S47.

  In step S48, the formulating means 2d creates energy saving achievement status data. In step S49, the formulating means 2d determines the energy saving achievement status including the energy saving effect, the list of restricted functions, the cost conversion value, and point information. Data is output to the presentation means 2e. In step S50, the presenting means 2e displays the target achievement status screen D9 of FIG. 2, determines whether or not it is within the set period in step S51, and returns to step S33 if affirmative. If no, proceed to END. The above flowchart is repeatedly executed until the set period elapses, and each step of the fuel-saving driving support method of the present invention is executed.

  According to the present embodiment described above, the following operational effects can be obtained. That is, it is possible to realize power saving control and fuel-saving driving that are more user-friendly and have a high degree of freedom for the user.

  That is, the setting screen D1 shown in FIG. 2 prompts the user to set the fuel saving target value, and in response to the setting, the target confirmation screen D2 specifically indicates which function of which in-vehicle device and which step. It is possible to display the restriction contents and what kind of restrictions are involved, and to teach the reduction contents to the user. Thereby, after obtaining the user's consent, it is possible to achieve the fuel saving that matches the user's intention by executing the function restriction and power saving of each in-vehicle device. In this way, by clearly instructing the user of the in-vehicle devices and functions to be restricted, it is possible to prevent power saving that is disadvantageous to the user.

  In addition, even for a function that the user cannot frequently turn on and off at each time, the multimedia system side includes a step of automatically including on / off based on the individual function power supply information shown in FIG. 3 and the external environment information. Energy saving operation desired by the user can be supported without making the user feel bothered by selecting and automatically executing power saving. Furthermore, it is possible to automatically limit the functions that are not frequently used by the user.

  Furthermore, even if the power supply plan presented once includes restrictions on functions that are inconvenient for the user, it is possible to release the functions that are inconvenient for the user even after the presentation, thereby reflecting the user's intention. As a result, it is easier to modify the power supply plan again, and a more user-friendly system can be realized.

  In addition, even if the initially set fuel efficiency target value cannot be achieved after the cancellation, the user's intention will be obtained before executing the power supply plan for the fact that it has not been achieved. System. Furthermore, even after an inconvenient function is canceled by the user, the multimedia system side promptly and automatically presents an alternative power supply plan again, which further enhances the convenience for the user. it can.

  Although the preferred embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various modifications and substitutions are made to the above-described embodiments without departing from the scope of the present invention. be able to.

  According to the present invention, a fuel-saving driving support system and a fuel-saving driving support capable of meeting various requests of individual users, realizing user-friendly and power-saving control and fuel-saving driving with a high degree of freedom for the user. Since a method, a program, and a medium can be provided, it is useful when applied to various vehicles such as passenger cars, trucks, and buses.

1 Fuel-saving driving support system 2 Multimedia ECU
2a setting means 2b power management means 2c environment management means 2d formulation means 2e presentation means 2f control means 2g power saving unit 3 display 4 hard disk (including individual function power supply information + external environment information + priority information)
5 AM / FM radio 6 DVD player 7 Navigation system 8 Air-conditioner ECU (including power saving unit)
9 Body ECU (including power saving unit)

Claims (14)

  Setting means for setting a target reduction amount of the power consumption of the vehicle based on the input of the fuel saving target value of the user, and the power consumption of the in-vehicle device and / or the in-vehicle device in each of the plurality of in-vehicle devices Individual function power supply including presence / absence of a power saving unit that switches a power consumption reduction amount for each function to be performed in stages, the reduction amount for each stage of the power saving unit, and restrictions associated with the reduction amount Power management means for managing information, environment management means for managing external environment information which is a determination element of whether or not the stage of the power saving unit can be selected, and the individual function power information and the external environment information The reduction amount for each power saving unit that satisfies the target reduction amount is determined based on the total amount of the reduction amount, the restriction in the reduction amount, and the reduction amount in the plurality of in-vehicle devices as a whole. Planning means to develop a power supply plan including reductions saving driving support system comprising a, that.   In addition to presenting the power supply plan to the user, including a presentation unit that allows an approval input when the user approves the power supply plan and a non-approval input when the user does not approve, when the approval input is performed, The fuel-saving driving support system according to claim 1, wherein the formulating unit determines the power supply plan.   When the non-approval input is made, the presenting means inputs a change input for the user to change the fuel saving target value or a cancel input for the user to cancel the individual reduction amounts included in the presented power supply plan. The fuel-saving driving support system according to claim 2, wherein the fuel-saving driving support system is possible.   When the change input is made, the setting unit sets the target reduction amount again, and the formulating unit formulates the power supply plan again based on the set target reduction amount again. The fuel-saving driving support system according to claim 3.   3. The fuel-saving driving support system according to claim 2, wherein, when the cancellation input is made, the formulating unit formulates the power supply plan again based on the cancellation input.   When the formulating unit formulates the power supply plan again based on the cancellation input, when the planned reduction amount does not reach the target reduction amount, the notifying unit notifies the user that the reaching does not reach, and 6. The fuel-saving driving support system according to claim 5, wherein an approval input when a user approves the power supply plan formulated again and a disapproval input when the user does not approve are enabled.   The presenting means presents the re-designed power supply plan to the user, and enables re-approval input when the user approves the re-designed power supply plan and re-unapproved input when not approved. When the re-approval input is made, the formulating means confirms the power supply plan formulated again, and when the re-non-approval input is made, the presentation means inputs the change input or the release input. The fuel-saving driving support system according to claim 6, wherein the fuel-saving driving support system is enabled again.   The fuel-saving driving support system according to claim 7, further comprising control means for controlling the plurality of in-vehicle devices based on the determined power supply plan.   Based on the stage included in the individual function power supply information and the external environment information, the formulating means determines the priority of selection of the stage of the power saving unit of the in-vehicle device or the quality of selection, and the formulating means The fuel-saving driving support system according to any one of claims 1 to 8, wherein the reduction amount for each power saving unit that satisfies the target reduction amount is determined based on the priority order.   The fuel-saving driving support system according to claim 9, wherein the presenting means displays a ratio of an actual value of the power consumption of the vehicle in the set period set by the user to the target reduction amount.   A setting step for setting a target reduction amount of the power consumption of the vehicle based on an input of the fuel saving target value of the user, and the power consumption of the in-vehicle device and / or the in-vehicle device in each of the plurality of in-vehicle devices. Individual function power supply including presence / absence of a power saving unit that switches a power consumption reduction amount for each function to be performed in stages, the reduction amount for each stage of the power saving unit, and restrictions associated with the reduction amount A power management step for managing information; an environment management step for managing external environment information that is a determination element of whether or not the stage of the power saving unit can be selected; and the individual function power supply information and the external environment information. And determining the reduction amount for each power saving unit that satisfies the target reduction amount based on the reduction amount, the restriction on the reduction amount, and the reduction in the plurality of in-vehicle devices as a whole Development step, the fuel-saving driving support method which comprises a to develop a power supply plan, including plan reductions is a total value.   Presenting the power supply plan to the user, and including a presentation step that allows an approval input when the user approves the power supply plan and a non-approval input when the user does not approve, and when the approval input is made, The fuel-saving driving support method according to claim 11, wherein the power supply plan is determined in the formulation step.   The program which makes a computer perform the fuel-saving driving | operation assistance method of Claim 11 or 12.   A medium storing the program according to claim 13.

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