JP2011117838A - Fuel consumption history display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a customer-friendly user interface having proper handleability for confirming change in fuel consumption, and/or a result of low fuel consumption operation. <P>SOLUTION: A fuel consumption history display device 10a includes a control section 11 (main control section 11 and drawing and display control section 134), an operation section 12, a memory section 14, and an operation section 16. The operation section 16 calculates section fuel consumption for each predetermined section, and the section fuel consumption is stored in the memory section 14; the control section 11 sequentially reads the section fuel consumption from the memory section 14, with only the predetermined numbers, and generates display information; and the display information is displayed on a display section 15. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a fuel consumption history display device that displays the fuel consumption of a vehicle as a history.

  The fuel consumption is an index indicating the amount of fuel that can be traveled over a traveling distance or a certain distance per unit volume of fuel. Therefore, many of the conventional considerations have been made so that the driver can perform appropriate acceleration / deceleration operations by displaying the instantaneous fuel consumption and average fuel consumption on the vehicle meter, or by providing guidance prompting the appropriate operation for low fuel consumption driving. It is on the market.

  Some display a fuel consumption history. For example, Patent Document 1 proposes a technique for changing the form of fuel consumption display for each trip using a trip that is a predetermined continuous travel as a break in order to display the fuel consumption of the vehicle as a change with time. According to this technique, since the fuel consumption change for each trip is displayed, the driver can grasp the tendency of the fuel consumption.

  However, according to the technique disclosed in Patent Document 1, since the fuel consumption display is based on time, for example, as shown in FIG. 2 of Patent Document 1, from what time to what time before and after the ignition is turned on Even if you know that you drove with how much fuel consumption, you don't know where it was when you drove. Therefore, the change in fuel consumption in the past travel route and the result of the low fuel consumption driving during that time cannot be confirmed, which is inconvenient and inconvenient.

JP 2002-225593 (paragraphs “0007” to “0011”, FIG. 2)

  It is an object of the present invention to obtain a fuel consumption history display device that provides a user interface that is easy to use and has improved convenience in order to confirm changes in fuel consumption and results of low fuel consumption driving.

  The invention according to claim 1 is a fuel consumption history display device including an operation unit and a display unit, a calculation unit that calculates a section fuel consumption for each predetermined section, and a predetermined section fuel consumption calculated for each section. A storage unit that stores the number of the fuel cells, and a control unit that sequentially reads a predetermined number of the section fuel consumption from the storage unit, generates display information, and displays the display information on the display unit.

  According to a second aspect of the present invention, in the fuel consumption history display device according to the first aspect, the control unit displays the read section fuel consumption in a graph in time series with the section as a unit.

  According to a third aspect of the present invention, in the fuel consumption history display device according to the first aspect, the control unit displays the read section fuel consumption in a superimposed manner on a map showing a traveled route. Item 2. The fuel consumption history display device according to Item 1.

  According to a fourth aspect of the present invention, in the fuel consumption history display device according to the third aspect of the present invention, the fuel consumption history display device further includes an image acquisition unit that acquires an arbitrary captured image captured for each section, and the control unit is calculated by the calculation unit The section fuel consumption is displayed on the display unit in association with the captured image acquired by the image acquisition unit.

  According to the first aspect of the present invention, the calculation unit calculates the section fuel consumption for each predetermined section and stores it in the storage unit, and the control unit sequentially reads a predetermined number of section fuel consumptions from the storage unit and displays the display information. Generate and display on the display. For this reason, the fuel consumption in units of distance is displayed on the display section for each predetermined section. Therefore, the user can confirm the change in the fuel consumption in the travel route and the result of the low fuel consumption driving during that time. Therefore, it is possible to provide a fuel consumption history display device having a user interface that is convenient and improved in convenience.

  According to the invention which concerns on Claim 2, a control part displays the area fuel consumption read from the memory | storage part as a graph in a time series by a section. For this reason, the user can compare and confirm the change in the fuel consumption and the result of the low fuel consumption operation for each section by looking at the graph. Therefore, the convenience and convenience when checking the change in the fuel consumption in the travel route and the result of the low fuel consumption driving are improved.

  According to the invention which concerns on Claim 3, a control part superimposes and displays the area fuel consumption read from the memory | storage part on the map which shows a driving | running route. For this reason, the user can confirm the change in the fuel consumption in the travel route and the result of the low fuel consumption driving on the map, and can provide an easy-to-use fuel consumption history display device.

  According to the invention of claim 4, the control unit displays the section fuel consumption calculated by the calculation unit on the display unit in association with the captured image acquired by the image acquisition unit. For this reason, the user can confirm the captured image in association with the section fuel consumption. Therefore, it is possible to provide an optimal user interface for confirming a change in fuel consumption and a result of low fuel consumption driving in view of the past travel route by further capturing memory by the captured image.

It is a block diagram which shows the structure of the fuel consumption history display apparatus which concerns on Example 1 of this invention. It is a flowchart which shows operation | movement of the fuel consumption log | history display apparatus which concerns on Example 1 of this invention. It is a figure which shows an example of the screen structure of the fuel consumption history display apparatus which concerns on Example 1 of this invention. It is a block diagram which shows the structure of the fuel consumption log | history display apparatus which concerns on Example 2 of this invention. It is a flowchart which shows operation | movement of the fuel consumption log | history display apparatus which concerns on Example 2 of this invention. It is a figure which shows an example of the screen structure of the fuel consumption history display apparatus which concerns on Example 2 of this invention. It is a block diagram which shows the structure of the fuel consumption log | history display apparatus which concerns on Example 3 of this invention. It is a flowchart which shows operation | movement of the fuel consumption log | history display apparatus which concerns on Example 3 of this invention. It is a figure which shows an example of the screen structure of the fuel consumption history display apparatus which concerns on Example 3 of this invention.

  Hereinafter, embodiments of the present invention will be described in detail.

(Configuration of Example 1)
As shown in FIG. 1, a fuel consumption history display device 10a according to the first embodiment includes a main control unit 11, an operation unit 12, a drawing / display control unit 13, a storage unit 14, a display unit 15, and a calculation unit. 16, a vehicle speed detection unit 17, and a fuel injection amount detection unit 18.

  The operation unit 12 includes, for example, a power switch, character keys, numeric keys, function keys to which various functions are assigned, and the like arranged in a matrix. When these switches and keys are operated by the user, the operation contents Is generated and supplied to the main control unit 11 as a user instruction.

  The drawing / display control unit 13 is composed of a commercially available LSI that sequentially reads a predetermined number of section fuel consumptions from the storage unit 14 to generate display information and displays it on the display unit 15. The display unit 15 is configured using, for example, an LCD (Liquid Crystal Display) or an organic EL (Electro-Luminescence), which is configured by arranging a large number of pixels (a combination of light emitting elements of a plurality of colors) vertically and horizontally. The display unit 15 is controlled by the drawing / display control unit 13 and displays the display information drawn in the built-in VRAM (display memory) in a graph in time series in units of sections as shown in FIG. 3, for example.

  The calculation unit 16 calculates the section fuel consumption for each predetermined section and stores it in the storage unit 14. The storage unit 14 stores a predetermined number of section fuel consumption calculated for each section by the calculation unit 16 and also stores a program executed by the main control unit 11. The storage unit 14 includes, for example, a nonvolatile storage device (nonvolatile semiconductor memory), a randomly accessible storage device (SRAM or DRAM), or the like.

  The vehicle speed detection unit 17 counts vehicle speed pulses to detect the vehicle speed, and the fuel injection amount detection unit 18 detects the injection amount of fuel injected into the cylinder from an engine employing EGI (Electronic Gasoling Injection), Information on the vehicle speed and the fuel injection amount is output to the main control unit 11.

  The main control unit 11 sequentially reads and executes the programs stored in the storage unit 14 so that the calculation unit 16 calculates the section fuel consumption for each predetermined section, and the drawing / display control unit 13 stores the storage unit. A predetermined number of section fuel consumptions are sequentially read from 14 to generate display information, and sequence control for displaying on the display unit 15 is performed. Here, the main control unit 11 and the drawing / display control unit 13 operate in cooperation, thereby “reading a predetermined number of section fuel consumptions sequentially from the storage unit to generate display information and displaying it on the display unit”. Functions as a control unit.

(Operation of Example 1)
The operation of the first embodiment shown in FIG. 1 will be described below based on the flowchart of FIG. 2 and the screen display example of FIG.

  According to FIG. 2, the main control unit 11 constantly monitors the sampling interval (step S101), and when the preset sampling time ts arrives (step S101 “YES”), the vehicle speed detection unit 17 and the fuel injection are performed. Information on the vehicle speed V and the fuel consumption injection amount Fs is acquired from the amount detection unit 18 and output to the calculation unit 16 (step S102).

  The calculation unit 16 calculates the instantaneous fuel consumption by dividing the value Vts obtained by multiplying the acquired vehicle speed V by the sampling time ts by the fuel injection amount Fs, and the calculation result is time-sequentially stored in the storage unit 14 at each sampling interval. (Step S103).

Next, the main control unit 11 takes in distance information set in advance (section distance information) and outputs it to the calculation unit 16. The driver may set arbitrary distance information based on the section input by operating the operation unit 12. The calculation unit 16 refers to the time-series instantaneous fuel consumption Fi information stored in the storage unit 14 with the distance information output from the main control unit 11 as a unit, and calculates the average fuel consumption F _AVE for each section (step S104). ). Then, the calculation unit 16 outputs the calculation result (average fuel consumption F _{AVE for} each section) to the main control unit 11.

  The main control unit 11 generates display information including, for example, a bar graph shown in FIG. It outputs to the display control part 13 (step S105).

  In the drawing / display control unit 13, display information including the above-described bar graph generated and output by the main control unit 11 is drawn in the VRAM, and the bar graph drawn in the VRAM is synchronized with the display timing of the display unit 15. Then, it is read out and supplied to the display unit 15. Thereby, the desired display shown in FIG. 3 is obtained (step S106). That is, the uppermost bar graph in FIG. 3 represents the instantaneous fuel consumption, and the vertical line a represents the average fuel consumption before 02 km.

  Next, the main control unit 11 determines whether or not the predetermined section indicated by the section distance information has been reached (step S107), and when it is confirmed that it has reached (step S107 “YES”), the drawing is performed. Control is transferred to the display control unit 13. Receiving this, the drawing / display control unit 13 updates the bar graph drawn in the VRAM and displays it on the display unit 15 (step S108).

  According to the bar graph shown in FIG. 3, when the section distance information is “2 km”, the instantaneous fuel consumption at the present time (0 to 2 km before) is used as a reference, the fuel consumption before 2 km, the fuel consumption before 4 km, the fuel consumption before 6 km, and 8 km. The previous fuel consumption, 10km before fuel consumption are compared as the average fuel consumption before 2-4km, the average fuel consumption before 4-6km, the average fuel consumption before 6-8km, the average fuel consumption before 8-10, the average fuel consumption before 10-12km, respectively. Is displayed. Here, every time the predetermined section indicated by the section distance information is reached, the bar graph of 2 km before fuel consumption is the average fuel consumption of 0 to 2 km before in the previous section, and the bar graph of 4 km before fuel consumption is 2 to 2 in the previous section. The average fuel consumption before 4 km and the fuel consumption before 6 km are the average fuel consumption before 4 to 6 km in the previous section, and the bar graph of the fuel consumption before 8 km is the average fuel consumption before 6 to 8 km in the previous section and the fuel consumption before 10 km. The bar graph is updated and displayed with the average fuel consumption of 8 to 10 km before in the immediately preceding section. That is, as indicated by a thick arrow in FIG. 3, each bar graph is scrolled downward by the drawing / display control unit 13, and displayed 10 to 12 km before as the fuel economy 10 km before the previous section. The bar graph indicating the average fuel consumption is deleted from the screen.

(Effect of Example 1)
According to the fuel consumption history display device 10a according to the first embodiment, the control unit (the main control unit 11 and the drawing / display control unit 13) displays the section fuel consumption read from the storage unit 14 in a graph in time series for each section. To do. For this reason, the user can confirm by comparing the result of the fuel consumption change or the low fuel consumption driving for each section. Therefore, the convenience in checking the change in the fuel consumption in the travel route and the result of the low fuel consumption driving is improved, and the convenience is improved.

(Configuration of Example 2)
As shown in FIG. 4, the fuel consumption history display device 10b according to the second embodiment includes a GPS receiver 19 used in the navigation device in the configuration of the fuel consumption history display device 10a according to the first embodiment shown in FIG. The map database 20 is added. Other configurations are the same as those of the first embodiment.

  A GPS (Global Positioning System) receiver 19 receives information on latitude and longitude indicating the current location of the vehicle and time from a GPS satellite and outputs the information to the main control unit 11 for position measurement calculation. The map database 20 stores facility information in addition to the map information, and is composed of an HDD (Hard Disc Drive) or a DVD (Digital Versatile Disc). Here, the control unit (the main control unit 11 and the drawing / display control unit 13) displays the section fuel consumption read from the storage unit 14 in a superimposed manner on a map indicating the traveled route.

(Operation of Example 2)
The operation of the second embodiment shown in FIG. 4 will be described below based on the flowchart of FIG. 5 and the screen display example of FIG.

  In FIG. 5, the operations in steps S201 to S204 are the same as those in steps S101 to S104 of the first embodiment shown in FIG.

  In the second embodiment described below, the main control unit 11 monitors whether or not the predetermined section indicated by the section distance information has been reached (step “S205”), and when it is confirmed that it has reached ( Step S205 “YES”), for example, display information for displaying the screen shown in FIG. 6 is generated. Specifically, the main control unit 11 reads out the map information for a predetermined section including the current location from the map database 20 based on the current location information acquired by the position measurement calculation (step S206), and the predetermined control from the current time on the map. Display information is generated by superimposing the fuel consumption of each section along the travel route that is traced back by the period, and is output to the drawing / display control unit 13 (step S207).

  The drawing / display control unit 13 draws the display information output from the main control unit 11 on the VRAM, and displays the display information in which the section fuel consumption is superimposed on the map drawn on the VRAM as the display timing of the display unit 15. The data is read out synchronously and output to the display unit 15 (step S208). Thereby, for example, a desired display shown in FIG. 6 can be obtained. According to FIG. 6, the fuel consumption retroactive by three sections from the current location (Δ) is displayed numerically on the travel route.

(Effect of Example 2)
According to the fuel consumption history display device 10b according to the second embodiment, the control unit (the main control unit 11, the drawing / display control unit 13) calculates the section fuel consumption calculated by the calculation unit 16 and read from the storage unit 14, A predetermined section is superimposed and displayed on the map indicating the traveled route. For this reason, the user can confirm the change in the fuel consumption in the travel route and the result of the low fuel consumption driving on the map, and therefore, a user-friendly fuel consumption history display device can be provided. For example, in applications such as destination search, it is obvious how much you have traveled in the past, including the waypoints, with a high level of fuel efficiency. Convenience is improved. The driver may operate the operation unit 12 so that the average fuel consumption in an arbitrary section on the route can be displayed.

(Configuration of Example 3)
As shown in FIG. 7, the fuel consumption history display device 10 c according to the third embodiment has a configuration that the fuel consumption history display device 10 b of the second embodiment shown in FIG. 4 has, in addition, an imaging unit 21 and a drive recorder (DR) main body. The unit 22 and the image information acquisition unit 23 are added. Other configurations are the same as those of the second embodiment shown in FIG.

  The DR main unit 22 is an imaging / recording apparatus mainly composed of a large-capacity storage device that is used to store images taken before and after an accident when a vehicle accident occurs and to check the accident situation later. . Recently, there are some scene images that can be saved at any time during travel.

  For example, Japanese Patent Application Laid-Open No. 2006-211415 discloses a technology relating to a vehicle video recording apparatus that records information on a driving state in synchronization with a landscape video shot during driving and can be easily viewed later by a driver. In Example 3 described below, this type of vehicle video recording apparatus is used as the DR main body 22. Here, it is assumed that a landscape video is automatically shot at an intermediate point (3 km, 5 km,...) Of each section and stored in the DR main body 22. Under the control of the DR main body unit 22, the landscape photographed by the imaging unit 21 is captured by the image information acquisition unit 23, which is captured by the main control unit 11, via the time information and the GPS receiver 19. The information is taken into the storage unit 14 together with the position information calculated by the position measurement.

(Operation of Example 3)
Hereinafter, the operation of the third embodiment shown in FIG. 7 will be described based on the flowchart of FIG. 8 and the screen display example of FIG.

  In FIG. 8, the operations in steps S301 to S304 are the same as those in steps S101 to S104 of the first embodiment shown in FIG.

  In the third embodiment described below, the main control unit 11 monitors whether or not the predetermined section indicated by the section distance information has been reached (step “S305”), and when it is confirmed that it has reached ( Step S305 “YES”), for example, display information for displaying the screen shown in FIG. 9 is generated. Specifically, the main control unit 11 reads out map information for a predetermined section including the current location from the map database 20 based on the current location information measured via the GPS receiver 19, and the image information acquisition unit 23 acquires the information. Then, the landscape video and the section fuel consumption stored in the storage unit 14 are read out (step S306). Then, the fuel consumption of each section is superimposed on the read map information along the travel route that is traced back for a predetermined period from the current time, and further, the landscape video that matches the position information that has been previously calculated by positioning is superimposed. Display information is generated (step S307).

  The drawing / display control unit 13 draws the display information output from the main control unit 11 on the VRAM, and displays the display information in which the section fuel consumption and the landscape video are superimposed on the map drawn on the VRAM. 15 is read out in synchronization with the display timing of 15 and output to the display unit 15 (step S308).

  Thereby, for example, a desired display shown in FIG. 9 can be obtained. According to FIG. 9, the fuel consumption and the landscape image for each section are displayed in a superimposed manner on the travel route by going back three sections from the current location (Δ).

(Effect of Example 3)
According to the fuel consumption history display device 10 c according to the third embodiment, the control unit (main control unit 11, drawing / display control unit 13) is calculated by the calculation unit 16 and is stored in the storage unit 14 for each section. Are displayed on the display unit in association with the captured image acquired by the image acquisition unit 23. For this reason, it is possible to allow the user to check the captured image in association with the section fuel consumption, and to provide an optimal user interface for checking the change in the fuel consumption and the result of the low fuel consumption driving in the past driving route. Can do.

  The fuel consumption history display device of the present invention calculates the fuel consumption for each section set by the user, and sequentially displays the section fuel consumption for a predetermined number, thereby changing the fuel consumption and the low fuel consumption in light of past travel routes. The present invention provides a user interface for confirming driving results, and is suitable not only for vehicles but also for all moving bodies that require low fuel consumption driving.

  DESCRIPTION OF SYMBOLS 10a, 10b, 10c ... Fuel consumption history display apparatus, 11 ... Main control part, 12 ... Operation part, 13 ... Drawing and display control part, 14 ... Memory | storage part, 15 ... Display part, 16 ... Calculation part, 17 ... Vehicle speed detection part , 18 ... Fuel injection amount detection unit, 19 ... GPS receiver, 20 ... Map database, 21 ... Imaging unit, 22 ... Drive recorder (DR) main body unit, 23 ... Image information acquisition unit.

Claims (4)

A fuel consumption history display device including an operation unit and a display unit,
A calculation unit for calculating the fuel efficiency of the section for each predetermined section;
A storage unit for storing a predetermined number of section fuel consumption calculated for each section;
A control unit that sequentially reads a predetermined number of section fuel consumptions from the storage unit to generate display information, and displays the display information on the display unit;
A fuel consumption history display device characterized by comprising: The controller is
2. The fuel consumption history display device according to claim 1, wherein the read section fuel consumption is displayed in a graph in time series with the section as a unit. The controller is
2. The fuel consumption history display device according to claim 1, wherein the read section fuel consumption is displayed superimposed on a map indicating a traveled route. An image acquisition unit that acquires an arbitrary captured image captured for each section;
The controller is
4. The fuel consumption history display device according to claim 3, wherein the section fuel consumption calculated by the calculation unit is displayed on the display unit in association with the captured image acquired by the image acquisition unit.

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