JP2010286385A - In-vehicle electronic equipment and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an in-vehicle electronic equipment or the like, which is easily mounted by a user personally after purchasing a vehicle, eliminates the need of wiring in order to acquire information from the vehicle, is mounted with less costs and labor hours in comparison with a conventional one, and has a user-friendly fuel consumption displaying function. <P>SOLUTION: An amount of oil feeding is inputted from a remote control device in each oil feeding operation. An average fuel consumption displayed on an average fuel consumption display section 54 is the past total fuel consumption and differs from a block average fuel consumption displayed on a block average fuel consumption display section 53. The block average fuel consumption is compared with the average fuel consumption. When the block average fuel consumption agree with the average fuel consumption, a character displayed on the block average fuel consumption display section 53 is turned black, and when the block average fuel consumption exceeds the average fuel consumption, the character displayed on the block average fuel consumption display section 53 is turned blue, and when the block average fuel consumption falls below the average fuel consumption, the character displayed on the block average fuel consumption display section 53 is turned red. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an in-vehicle electronic device that outputs fuel consumption.

  Due to recent drastic fluctuations in gasoline prices, drivers are becoming more aware of fuel efficiency. Therefore, there is known a fuel consumption display device that obtains and displays an average fuel consumption and an instantaneous fuel consumption based on a fuel supply amount to the engine of the vehicle and a travel distance detected from the number of wheel rotations (Patent Document 1).

JP 2002-225593 A

  However, in order to detect the fuel consumption of the vehicle, the fuel consumption display device needs to be incorporated in advance when the vehicle manufacturer manufactures the vehicle in order to detect the remaining amount of fuel in the fuel tank and the fuel consumption. If it is going to be retrofitted after the purchase of the vehicle, there is a problem that wiring for acquiring information for calculating fuel consumption from the vehicle is necessary, and it is difficult to install without cost and labor.

  Therefore, the present invention can be easily installed by the user even after purchase of the vehicle, can eliminate the need for wiring for acquiring information from the vehicle, and is less expensive and labor-intensive than before. It is an object of the present invention to provide an in-vehicle electronic device that can be installed without spending, can output accurate fuel consumption at low cost, and has a simple and convenient fuel consumption output.

  In order to achieve the above-described object, an on-vehicle electronic device according to the present invention includes (1) a fuel amount input means for inputting a fuel amount for a vehicle when full tank is filled, and a previous fuel amount input by the fuel amount input means. Section travel distance calculating means for calculating a section travel distance that is the travel distance of the vehicle from when the current fuel amount is input, to the section travel distance calculated by the section travel distance calculating means, and to the fuel supply amount Section fuel consumption calculation means for calculating the fuel efficiency of the section based on the current fuel amount input by the input means, and output means for outputting the fuel efficiency of the section calculated by the section fuel consumption calculation means.

  According to such a structure, the wiring for acquiring the amount of oil supply and a travel distance from a vehicle becomes unnecessary. Therefore, it can be easily installed by the user even after purchasing the vehicle, wiring for acquiring information from the vehicle can be dispensed with, and it can be installed without cost and effort as compared with the past. it can. In addition, by inputting the amount of oil supply when the tank is full, relatively accurate fuel consumption can be output by a simple method.

  The section travel distance calculating means may calculate the section travel distance based on the change amount of the current position output from the current position detecting means such as GPS. The oil supply amount input means may be configured to input the oil supply amount using, for example, a remote control or a touch panel.

  (2) The output means may output a content that makes it conscious to input the amount of oil to be supplied when the tank is fully filled within a predetermined time after turning on the power to the in-vehicle electronic device. In this way, it is possible to prevent the user from forgetting to input the oil supply amount from the oil supply amount input means at the time of full tank refueling. The on-vehicle electronic device may be supplied with power from a battery provided on the vehicle side during ACCON of the vehicle. At the time of refueling, ACC is turned off, and after refueling, ACC is turned on and the vehicle is started. For this reason, after turning on the power to the in-vehicle electronic device, the user can realize that he / she has forgotten to input the oil supply amount by outputting the content that makes the user aware of the oil supply amount within a predetermined time. The predetermined time may be a general time (for example, 10 seconds) required to start the engine and start the vehicle after turning on the ACC. If it does in this way, before starting a vehicle after refueling, it can be noticed that it is in the situation where the amount of refueling should be inputted. The output of contents that make the user aware of the amount of oil supply may be output by screen display as shown in FIGS. 5 and 6 in the embodiment, or by output of voice or the like.

  (3) Section travel distance history storage means for storing the section travel distance history calculated by the section travel distance calculation means, and calculation of the travel distance from the previous refueling amount input to the present time by the refueling amount input means Current distance calculation means, and the output means includes a current distance calculated by the current distance calculation means and a reference section distance based on a section travel distance history stored in the section travel distance history storage means. When a predetermined proximity relationship is reached, it is preferable to output a content that makes it conscious to input the amount of oil supply when the tank is full. When there is no predetermined approaching relationship, it is preferable not to output the content that makes it conscious to input the amount of oil supplied when the tank is full.

  In this way, it is possible to solve the problem that although the tank has just been filled up, an output of contents that make it conscious to input the amount of oil to be filled at the time of full tank refueling is output. In addition, if the current distance is close to the reference section distance based on the distance traveled so far, it will output the content that makes it conscious to input the amount of oil supply. It is possible to prevent forgetting input. The reference section distance is, for example, an average value of the section travel distance history stored in the section travel distance history, and the predetermined approach relationship may be a distance that is, for example, about 10% to 20% less than the reference section distance.

  (4) It includes a fueling determination unit that detects a time until the engine is stopped and restarted, and determines whether or not the detected time corresponds to a standard time required for fueling, and the output unit includes the fueling When it is determined by the determination means that the detected time corresponds to the standard time required for refueling, it is preferable to output the content that makes it conscious to input the refueling amount at the time of full tank refueling. When it is determined that it does not correspond to the standard time, it is preferable not to output the content that makes it conscious to input the amount of oil to be supplied when the tank is full. In this way, when there is a high possibility that refueling is being performed, an output of content that makes it conscious to input the refueling amount at the time of full tank refueling will be made, so that the refueling amount should be frequently input This can solve the problem of annoying the output of content that makes you aware of. In addition, when it is determined by the refueling determination means that the detected time corresponds to the standard time required for refueling, an output that makes it conscious to input the refueling amount at full tank refueling is performed. It is possible to prevent forgetting to input the amount of oil supply. The standard time required for refueling may be, for example, 1 minute to 10 minutes.

  (5) Average fuel consumption calculation means for calculating an average fuel consumption based on the integrated value of the fuel supply amount input by the fuel supply amount input means and the integrated value of the section travel distance calculated by the section travel distance calculation means. The output unit may output the average fuel consumption calculated by the average fuel consumption calculation unit together with the section fuel consumption.

  According to such a configuration, the user can easily grasp the situation of both sections by comparing the section fuel efficiency and the average fuel efficiency. Therefore, it is easy to use.

  (6) The output means may output in different output modes when the section fuel consumption falls below the average fuel consumption and when the section fuel consumption exceeds the average fuel consumption.

  According to such a configuration, it can be easily understood whether the fuel consumption from the previous refueling to the current refueling is higher or lower than the average fuel consumption so far. Therefore, it is easy to use. As an output mode, for example, when the section fuel consumption is lower than the average fuel consumption, it is output as a red display, and when it is higher, it is output as a blue display.

  (7) The average fuel consumption calculating means includes an oil supply amount input forgetting instruction input means for inputting an instruction to that effect when the user forgets to input the oil supply amount to the oil supply amount input means. When an instruction to forget to input the fuel amount is input from the forgetting instruction input means, it is preferable not to include the current section travel distance in the integrated value of the section travel distance. In this way, if the user forgets to input the amount of fuel supplied when the tank is full, the calculated section distance integrated value (cumulative travel distance in the embodiment) deviates from the actual travel distance integrated value. This can be prevented.

  (8) Informing means for notifying an approach warning to the speed measuring device based on the acquired current position and the position of the speed measuring device, the output means outputs the section fuel consumption to the informing means, The notification means may not output the section fuel consumption during the approach warning.

According to such a configuration, the so-called radar detector reporting means can be shared and the section fuel consumption can be output, the cost can be reduced, and the approach warning is not output due to the section fuel consumption output. Such a problem can be prevented.
(9) In addition, it is realizable as a program for making a computer implement | achieve the function in the vehicle-mounted electronic device in any one of (1)-(8).

  Note that the various calculation means described above are implemented as functions of the control unit 18 in the embodiment.

  According to the present invention, the user can easily install the vehicle even after purchasing the vehicle, the wiring for acquiring information from the vehicle can be made unnecessary, and costs and labor can be reduced as compared with the prior art. It is possible to provide an in-vehicle electronic device that can be installed and has an easy-to-use fuel consumption display function.

It is a figure which shows the structure of the radar detector which is preferable one Embodiment of this invention. It is a block diagram of a radar detector. It is a figure which shows the example of a display of a standby screen, a radar scope, and a GPS alarm. It is a figure which shows the example of a display of the alarm screen in a radar wave alarm function. It is a figure which shows the example of a display of a full tank confirmation screen. It is a figure explaining the example of a drawing of the oil supply amount input screen. It is a figure explaining the example of a display of an average fuel consumption measurement mode screen. It is a figure explaining the example of a display of an average fuel consumption measurement mode screen. It is a figure explaining the example of a display of an average fuel consumption measurement mode screen.

  1 and 2 show a configuration of a radar detector which is a preferred embodiment as an in-vehicle electronic device of the present invention. The radar detector is usually mounted on the dashboard. As shown in FIG. 1, this radar detector has a solar panel 2 and a switch unit 3 arranged on the upper surface of the case body 1, and the front side of the case body 1 (the side arranged on the front side of the vehicle (the windshield side)). A microwave receiver 4 for detecting microwaves in a frequency band emitted by the speed measuring device is disposed inside, and a display unit 5 and an alarm lamp are provided on the rear side of the case body 1 (the side disposed on the rear side of the vehicle (user side)). 6, an infrared communication device 7, and a remote control receiver 16 are arranged. A GPS receiver 8 is disposed inside the upper surface of the case body 1. Further, an adapter jack 9 is disposed on one side surface of the case body 1, and a power switch 10 and a DC jack (not shown) are disposed on the other side surface. A speaker 20 is also built in the case body 1. In the present embodiment, the display unit 5 is a 2.4 inch small liquid crystal display, and the height H on the rear side of the case body 1 on which the display unit 5 is mounted is set to be higher than the height H0 of other parts. Yes.

  As shown in FIG. 2, the infrared communication device 7 transmits and receives data to and from a communication device incorporating an infrared communication device such as a mobile phone 12. The adapter jack 9 is a terminal for connecting the memory card reader 13. By connecting the memory card reader 13 to the adapter jack 9, data stored in the memory card 14 attached to the memory card reader 13 can be taken in. More specifically, the data stored in the memory card 14 includes update information such as information on a new target (position information including longitude and latitude, type information, etc.), and the update information passes through the control unit 18. Thus, the data is stored (downloaded) in the database 19 built in the apparatus, and the data is updated. The function of the memory card reader 13 may be configured to be built in the main body case 1.

  The database 19 is a nonvolatile memory (for example, EEPROM) in the microcomputer of the control unit 18 or externally attached to the microcomputer. In the database 19, information related to a certain target is registered at the time of shipment, and data and the like regarding the target added after that can be updated as described above. Data update can also be performed via the infrared communication device 7. The database 19 stores various setting information. As this setting information, there is an initial full tank refueling confirmation flag. The value of the initial refueling confirmation flag is stored as “0” at the time of factory shipment. Further, an oil supply amount input flag, which will be described later, is set to “0” in the initialization process when the power is turned on.

  The DC jack is for connecting a cigar plug cord (not shown), and is connected to a cigar socket of the vehicle via the cigar plug cord so that power can be supplied. Further, the radar detector according to the present embodiment includes a wireless receiver 15. The wireless receiver 15 receives incoming radio waves having a predetermined frequency.

  The remote control receiver 16 performs data communication with a remote control (portable device: handset) 17 by infrared rays and performs various settings for the device. The switch unit 3 is also connected to the control unit 18 (not shown) so that the same setting as the remote controller 17 can be performed.

  The remote controller 17 includes an average fuel consumption display button, a standby switch button, a full tank button, a fueling amount input button, a cancel button, a measurement button, a reset button, an OK button, a number from “0” to “9”, and a decimal point “ . ”Is provided as a numeric button.

  The control unit 18 also receives information input from the various input devices (GPS receiver 8, microwave receiver 4, wireless receiver 15, remote control receiver 16, memory card reader 13, infrared communication device 7). Based on the above, a predetermined process is executed, and a predetermined alarm / message is output using an output device (display unit 5, alarm lamp 6, speaker 20). Note that these basic configurations can be basically the same as the conventional ones.

  The functions of the radar detector of the present embodiment are realized by being stored on the EEPROM of the control unit 18 as a program executed by the computer included in the control unit 18 and executed by the computer included in the control unit 18.

  Functions realized by the computer by the program of the control unit 18 include a standby screen display function, a radar scope display function, a GPS alarm function, a radar wave alarm function, a wireless alarm function, a fuel consumption display function, and the like.

  The standby screen display function is a function for displaying the speed, latitude, longitude, and altitude of the host vehicle detected by the GPS receiver 8, as shown in FIG. As shown in FIG. 3 (b), the radar scope display function is a position where a target within a predetermined range (for example, within a range of about 1 km) from the current position detected by the GPS receiver 8 is stored in the database 19. This is a function of searching based on information and displaying the relative positional relationship between the vehicle position and the position of the target on the display unit 5. In FIG. 3B, “W” on the left side indicates the west, “E” on the right side indicates the east, and “N” on the upper side indicates the north direction, and the horizontal line connecting “W” and “E” and “N” The icon at the intersection of the vertical line extending downward from "" indicates the vehicle position. Icons having characters such as “L”, “RD”, “P”, and “N” indicate the type and position of the target. When pressing of a standby switching button provided on the remote controller 17 is detected during execution of the standby screen display function as shown in FIG. 3A, the radar scope display function is switched to as shown in FIG. Further, when pressing of the standby switch button provided on the remote controller 17 is detected during execution of the radar scope display function, processing for switching to the standby screen display function is performed.

  The control unit 18 performs processing for realizing each function such as a GPS alarm function, a radar wave alarm function, a radio alarm function, and a fuel consumption display function according to an event that occurs during execution of the standby screen display function or the radar scope display function. Execute.

  The GPS alarm function obtains the distance between the target object stored in the database 19 and the latitude / longitude of the current position detected by the GPS receiver 8 during execution of the standby screen display function or radar scope display function, When the calculated distance is a predetermined distance (for example, within 500 m), this is displayed on the display unit 5 and a sound indicating that is output from the speaker 20. For example, during the execution of the standby screen display function of FIG. 3A or the radar scope function of FIG. 3B, the target “L” (indicating a loop coil radar) and the vehicle position at the top in the figure As shown in FIG. 3C, the schematic diagram or the photograph data of the target loop coil is read from the database 19 and displayed on the display unit 5 as shown in FIG. The stored voice data is read out and an approach notification is output from the speaker 20 to output a voice saying “500m ahead, loop coil”. During sound output, the alarm lamp 6 is turned on.

  These targets include radar, speed limit switching points, control areas, inspection areas, parking monitoring areas, N systems, traffic monitoring systems, intersection monitoring points, signal ignore suppression systems, police stations, accident-prone areas, and on-vehicle targets High-frequency area, sudden / continuous curve (highway), branch / merge point (highway), ETC lane advance guidance (highway), service area (highway), parking area (highway), parking area (highway) , Highway oasis (highway), smart interchange (highway), PA / SA inside petrol station (highway), tunnel (highway), highway radio reception area (highway), prefectural border notice, road station, viewpoint There is parking, etc., the type information of these targets, the latitude and longitude information indicating the position, and display on the display unit 5 Stored in the schematic view or photograph data and the database 19 in association with the audio data that.

  The radar wave warning function is used when the microwave receiver 4 detects a signal corresponding to a microwave in a frequency band emitted from a velocity measuring device (mobile radar or the like (hereinafter simply referred to as “radar”)). This is an alarm function for displaying an alarm screen on the display unit 5 and outputting an alarm sound from the speaker 20. For example, when a microwave in a microwave frequency band emitted by a radar is detected by the microwave receiver 4, as shown in FIG. 4, a schematic diagram or a photograph of the radar stored in the database 19 is displayed on the display unit 5. While being displayed as an alarm screen, the voice data stored in the database 19 is read out and a voice “Radar. Speed attention” is output from the speaker 20. During sound output, the alarm lamp 6 is turned on.

  The radio alarm function is a function for issuing an alarm so that the radio receiver 15 does not interfere with the traveling or the like when radio waves emitted from an emergency vehicle or the like are received. In the radio alarm function, the control radio, car radio, digital radio, special radio, police radio, police phone, police activity radio, wrecker radio, heli tele radio, fire helicopter radio, fire fight radio, emergency radio, expressway radio , Scan the frequency of the security radio, etc., and when the radio is received at the scanned frequency, a schematic diagram showing that the radio corresponding to the frequency stored in the database 19 for each radio type is received as an alarm screen While displaying on the display part 5, the audio | voice data memorize | stored for every radio | wireless classification in the database 19 are read, and the alarm sound which shows the radio | wireless classification from the speaker 20 is output. For example, when a control radio is received, a voice is output like “control radio. Speed attention”. During sound output, the alarm lamp 6 is turned on.

  The radar detector of this embodiment further includes a fuel consumption measurement function. When the ACC is turned on and the engine of the vehicle is started, power supply to the cigar socket is started in the vehicle, and power is supplied from the DC jack to each unit shown in FIG. When the power is turned on, the control unit 18 displays a full tank confirmation screen shown in FIG. 5 on the display unit 5, and outputs a voice “Please press the full button when refueling” from the speaker 10. As shown in FIG. 5, the full tank confirmation screen includes a character string “please press the full tank button when refueling”, a full tank button 42, and a cancel button 44.

  The full tank confirmation screen is displayed for 15 seconds starting from 1 second after ACCON. If the user does not detect pressing of the full button on the remote controller 17 during the display time of the full tank confirmation screen, or detects pressing of the cancel button of the remote controller 17 during the display time of the full tank confirmation screen. If it is determined, it is determined whether or not the initial refueling confirmation flag is “1”. If it is “1”, the process proceeds to display processing of the average fuel consumption measurement mode screen. If it is not “1”, the standby screen display is performed. Move to function processing.

  When a button on the remote control corresponding to the button displayed on the display unit 5 (each button shown in FIGS. 5 to 9) is pressed, the displayed button is displayed in reverse video and then displayed in reverse video. After a lapse of time during which it can be visually recognized (for example, 0.3 seconds), the process proceeds to processing of the function assigned to the button. In this way, it is possible to easily confirm whether or not the correct button of the remote controller 17 has been pressed by looking at the reverse display state on the screen.

  When pressing of the full tank button of the remote controller 17 is detected while the full tank confirmation screen of FIG. 5 is displayed, it is determined whether or not the initial refueling confirmation flag stored in the database 19 is “0”; In the case of “0”, the initial fueling confirmation flag is changed to “1”, the section travel distance measurement value is reset, and the measurement of the section travel distance measurement value is started. FIG. Move to the standby screen display function processing. The section travel distance measurement value is for measuring the distance traveled from the time when the tank was full to the time when it was full this time. The section travel distance measurement value is calculated by integrating the displacement amount (travel distance) obtained from the latitude and longitude of the current position output every second from the GPS receiver 8, and is stored in the database 19 for each calculation. . Information about the latitude and longitude of the current position output every second is also recorded in the database 19 as a travel history. When the capacity of the database 19 is full, the oldest one is overwritten and recorded.

  On the other hand, in the determination of whether or not the initial refueling confirmation flag stored in the database 19 is “0”, when the initial refueling flag is “1”, the process proceeds to the display process of the refueling amount input screen shown in FIG. Transition.

  As described above, the initial refueling confirmation flag of the database 19 is stored and shipped as “0” at the time of factory shipment. Therefore, at the time of the first refueling, the first refueling confirmation flag is changed to “1”, the measurement of the section travel distance measurement value is started, and the process proceeds to the processing of the standby screen display function of FIG. . When the next full tank button is pressed, the initial refueling confirmation flag stored in the database 19 is “1”, and the refueling amount confirmation screen shown in FIG. 6 is displayed.

  Also, the control unit 18 displays the above-described full-fill confirmation screen of FIG. 5 even when pressing of the full-fill button provided on the remote controller 17 is detected during execution of the standby screen display function and the radar scope display function. The same process as when the full button on the remote controller 17 is detected is detected. Note that the control unit 18 detects these approach alarms when pressing of the full button provided on the remote controller 17 is detected during the output of the approach alarms by the radar wave alarm function, the GPS alarm function, and the radio alarm function. Until the output is completed and the process proceeds to the standby screen display function or the radar scope display function, it is the same as the case where the press of the full button on the remote controller 17 is detected while the full check screen shown in FIG. 5 is displayed. The process (including the display of the average fuel consumption measurement mode screen) is not shifted.

  As shown in FIG. 6, the oil supply amount input screen includes an oil supply amount display unit 61, a numerical value input button 62, a cancel button 63, a correction button 64, and an OK button 65. When pressing of a numeric button provided on the remote controller 17 is detected, a numerical value corresponding to the detected numeric button is displayed on the fuel supply amount display unit 61. When the correction button provided on the remote controller 17 is pressed, the numerical value displayed on the oil supply amount display section is cleared to obtain the display state shown in FIG. When it is detected that the OK button of the remote controller 17 is pressed, the displayed numerical value is stored in the database 19 as the fuel supply amount input value, and the current section travel distance display value is stored in the database 19 as the section travel distance past value. The travel distance measurement value is stored in the database 19 as the section travel distance display value, the fuel supply amount input flag is set to “1”, and the process proceeds to the average fuel consumption measurement mode screen display process. On the other hand, when pressing of the cancel button of the remote controller 17 is detected, the fuel supply amount input flag is set to “0” and the process proceeds to the average fuel consumption measurement mode screen display process.

  The control unit 18 also shifts to the average fuel consumption measurement mode screen display process when pressing of the average fuel consumption display button provided on the remote controller 17 is detected during the execution of the standby screen display function and the radar scope display function. .

  In the average fuel consumption measurement mode screen display process, first, a drawing process of the average fuel consumption measurement mode screen is performed on the display unit 5. As shown in FIG. 7, the average fuel consumption measurement mode screen includes a fuel amount display unit 51, a section travel distance display unit 52, a section average fuel consumption display unit 53, an average fuel consumption display unit 54, a fuel amount button 55, a reset button 56, A measurement button 57 and a cancel button 58 are provided.

  The oil supply amount display unit 51 displays the oil supply amount input value stored in the database 19. The section travel distance display unit 52 displays the section travel distance display value stored in the database 19. The section average fuel consumption display unit 53 displays the section average fuel consumption obtained by dividing the fuel supply amount input value stored in the database 19 by the section travel distance display value stored in the database 19. The average fuel consumption display unit 54 displays the average fuel consumption obtained by dividing the cumulative amount of fuel stored in the database 19 by the cumulative travel distance stored in the database 19.

  The section average fuel consumption is compared with the average fuel consumption. If the section average fuel consumption and the average fuel consumption match, the letters in the section average fuel consumption display section 53 are displayed in black, and if the section average fuel consumption exceeds the average fuel consumption, the section average fuel consumption is displayed. The characters in the section 53 are displayed in blue, and when the section average fuel consumption is lower than the average fuel consumption, the letters in the section average fuel consumption display section 53 are displayed in red.

  When pressing of the measurement button of the remote controller 17 is detected while the average fuel consumption measurement mode screen is displayed, the fuel supply amount input value stored in the database 19 is added to the cumulative fuel supply amount stored in the database 19. Then, a new accumulated oil amount is obtained, and this value is stored in the database 19 as an accumulated oil amount. Further, the section travel distance measurement value is added to the cumulative travel distance stored in the database 19 to obtain a new cumulative fuel supply amount, and this value is stored as the cumulative fuel supply amount of the database 19. Then, the section travel distance measurement value is reset to start the section travel distance measurement, and the process proceeds to the standby screen display function.

  When pressing of the cancel button from the remote controller 17 is detected while the average fuel consumption measurement mode screen is displayed, it is determined whether or not the fuel supply amount input flag is “1”. In the case of “1”, after the section travel distance past value stored in the database 19 is stored in the database 19 as the section travel distance display value, the refueling amount input flag is set to “0” and the standby screen display function processing is performed. Migrate to On the other hand, if the fuel supply amount input flag is “0” in this determination, the process proceeds to the standby screen display function.

  In addition, when the average fuel consumption measurement mode screen is displayed and the refueling amount input flag is “0” and the average fuel consumption measurement mode screen is displayed, no operation from the operation remote controller 17 is detected for 15 seconds. Then, the control unit 18 proceeds to processing of the standby screen display function.

  On the other hand, when the average fuel consumption measurement mode screen is displayed, if the pressing of the reset button from the remote control 17 (which constitutes the forgotten fuel input instruction input means) is detected, the measurement of the section travel distance measurement value is stopped. Then, the refueling amount and the section travel distance measurement value are reset (set to 0), the initial refueling confirmation flag is changed to “0” and stored, and the section travel distance measurement value measurement is stopped, as described above. Moves to display processing of full tank confirmation screen. This process is a process related to the forgetting to input fuel amount input means.

  The user stops the engine, performs refueling for the second time, sees the full tank confirmation screen shown in FIG. 5 displayed on the display unit 5 when the engine is started, and presses the full tank button on the remote controller 17. . Then, the refueling amount input screen of FIG. 6 is displayed, and the current refueling amount is input from the remote controller 17. For example, when 32.1 liters are refueled this time, the numeric buttons “3”, “2”, “.”, “1” of the remote controller 17 are sequentially pressed, and the OK button is pressed.

  Then, as shown in FIG. 8, “32.1L” that is an oil supply amount input value is displayed on the oil supply amount display unit 51. At this time, when the section travel distance measurement value is 450 km, this “450 km” is displayed as the section travel distance display value and displayed on the section travel distance display unit 52. Further, as the section average fuel consumption, “14 km / L” obtained by dividing “450 km” by the fuel supply amount input value “32.1L” is displayed on the section average fuel consumption display section 53, and is the cumulative travel distance as the average fuel consumption. “14 km / L” obtained by dividing “450 km” by “32.1 L” that is the cumulative amount of fuel supply is displayed on the average fuel consumption display unit 54. When the measurement button 57 is pressed by the user, the section travel distance measurement value is reset (set to 0), and measurement of the section travel distance measurement value is started.

  The user inputs the amount of oiling in the third and subsequent refueling in the same manner as in the second refueling. At the time of refueling after the third time, as shown in FIG. 9, there is a difference between the average fuel consumption displayed on the average fuel consumption display unit 54 and the section average fuel consumption displayed on the section average fuel consumption display unit 53. Become. In the state of FIG. 9, since the section average fuel consumption is lower than the average fuel consumption, the letters in the section average fuel consumption display section 53 are displayed in red.

According to the processing of the control unit 18 as described above, it can be easily understood whether the fuel consumption from the previous refueling to the current refueling is higher or lower than the average fuel consumption so far. In addition, since the section fuel consumption and the average fuel consumption are displayed side by side on the same screen, it is possible to easily compare the section fuel consumption and the average fuel consumption. Moreover, wiring only for a power supply may be sufficient based on the information from the GPS receiver 8, and wiring for acquiring information from the vehicle is unnecessary. Therefore, it can be easily installed by the user even after purchasing the vehicle, wiring for acquiring information from the vehicle can be dispensed with, and it can be installed without cost and effort as compared with the past. it can.
The user can confirm the section average fuel consumption and the average fuel consumption by simply filling the tank, pressing the full tank button on the remote controller 17 and inputting the amount of fuel supply from the remote controller 17.

  In this embodiment, the operation of pressing the button of the remote controller 17 is detected and the operation is input. However, a touch panel is provided on the display unit 5 to detect the touch position of the touch panel, and the operation is performed. May be input. For example, when a touch on the touch panel is detected during the execution of the standby screen display function or the radar scope display function, the average fuel consumption measurement mode screen of FIG. 6 is displayed, and thereafter the positions of the buttons 55 to 58 and 62 to 65 are displayed. When a touch on is detected, the same processing as that performed when the above-described operation with the remote controller 17 is performed may be performed.

  Even if the user forgets to input the amount of fuel supplied at the time of refueling, if the user presses the reset button provided on the remote controller 17 in a state where the average fuel consumption measurement mode screen is displayed, the measurement of the section travel distance measurement value is performed. Is stopped, and the refueling amount and the section travel distance measurement value are reset.

  When the engine is started, a full tank confirmation screen is displayed and a voice notification is given. Forget to enter the oil amount on the oil amount input screen by pressing the full tank confirmation button at the next refueling. Can prevent the problem of end. At the beginning of normal use of the vehicle, the user is conscious of full refueling when refueling and pressing the full tank button on the remote controller 17 to input the refueling amount when full refueling Can do.

  Even if the user forgets to input the fueling amount, if the user presses the reset button provided on the remote controller 17 while the average fuel consumption measurement mode screen is displayed, the fueling amount and the section travel distance measurement amount are reset. These are not added to the current accumulated fuel amount or the accumulated travel distance, so that it is possible to prevent the displayed average fuel consumption from deviating from the actual value due to forgetting to input the amount of oil.

  Moreover, in the above-mentioned embodiment and the modification, when the engine is started (after turning on the power to the vehicle-mounted electronic device (radar detector)), refueling by displaying a full tank confirmation screen and sound notification every time. Although the process of making it aware that the quantity is input is executed, the present invention does not necessarily need to perform such a function at every engine start.

  That is, for example, since the engine is stopped during refueling, the engine is started after refueling and the above state is reached, but the engine is operated in order to operate after parking and stopping after stopping the normal engine rather than the case. There are more times to start. Therefore, every time the user starts the engine to start the operation instead of after refueling, the user needs to select the cancel button 44 on the confirmation screen shown in FIG. Therefore, when the time from when the engine is stopped to when it is started is within a certain time, the above confirmation screen is displayed and the sound is notified, and when the certain time (standard time) is exceeded, the relevant processing is performed. It may not be performed. The fixed time is set based on the time when the vehicle is stopped at the gas station with refueling. Normally, the time when the engine is turned off for refueling is shorter than the time when the engine is stopped with the engine stopped instead of for refueling. When the engine is started, it is possible to reduce the number of times processing such as pressing of the cancel button 44 is performed. In addition, since the engine may remain stopped for a certain period of time during breaks and other times when refueling a gas station, it is preferable to set the above-mentioned fixed time slightly longer in consideration of them. And the calculation of the time when the engine is stopped is, for example, to record the current position history by GPS signal to calculate the travel distance, so the time information at the final point is also recorded together with the position information, It can be obtained from the difference from the current time when the radar detector is turned on as the engine starts. Also, since this type of radar detector has a built-in battery, if the power supply from the vehicle is stopped, the built-in battery operates a part of the internal electronic circuit / control unit, You may calculate the stop time. Furthermore, this calculation using the built-in battery stores the time when power is supplied (obtained from the internal clock, GPS receiver, etc.) in memory to protect the battery capacity, and when the power is turned on next time. It is possible to calculate the stop time from this time, or to provide a timer for measuring the above-mentioned fixed time, and when the timer expires, the operation by the built-in battery can be stopped. In the latter case, if the engine starts before the time is up, it is determined that the vehicle has stopped due to refueling, a confirmation screen is displayed, etc., and the time is already up when the engine is started and the power is turned on. It is possible to execute a process in which it is determined that the vehicle is normally parked and stopped and the confirmation screen is not displayed. Of course, when this type of function is provided, it is preferable to provide a function for inputting the full tank and the amount of oil supply by manual operation.

  Further, for example, when the section travel distance measurement value described above is stored in the database 19 as the section travel distance display value, the history of the section travel distance measurement value (section travel distance history) may be stored in the database 19. Then, the controller 18 displays the section travel distance measurement value (current distance in the claims) on the database 19 before displaying the full tank confirmation screen shown in FIG. It is determined whether or not the value corresponding to 80% of the average value of the section mileage history stored in is exceeded, and if so, a full tank confirmation screen is displayed on the display unit 5 to display “full tank refueling”. Shift to the process of outputting the voice “Please press the full button at times” from the speaker 20, and if it does not exceed, the process to display the full tank confirmation screen on the display unit 5 and “Press the full button at the time of full tank refueling” The process may be shifted to the average fuel consumption measurement mode screen display process without shifting to the process of outputting the voice “from the speaker 20. In this way, it is possible to solve the problem that the full tank confirmation screen is output even though it is just full.

  Moreover, although the embodiment and the modification described above showed an example applied to a radar detector as an in-vehicle electronic device, it is a matter of course that it can be applied to other various in-vehicle electronic devices, It can also be provided as a dedicated in-vehicle electronic device that requires fuel efficiency and the like.

DESCRIPTION OF SYMBOLS 1 Case main body 2 Solar panel 4 Microwave receiver 5 Display part 6 Lamp 7 Infrared communication device 8 GPS receiver 9 Adapter jack 10 Power switch 11 Mobile phone 12 Memory card reader 14 Memory card 15 Wireless receiver 16 Remote control receiver 17 Remote control 18 control unit 19 database 20 speaker 51 oil supply amount display unit 52 section travel distance display unit 53 section average fuel consumption display unit 54 average fuel consumption display unit 55 oil supply button 56 reset button 57 measurement button 58, 63 cancel button 61 oil supply amount display unit 62 Numeric input button 64 Correction button 65 OK button

Claims (9)

A refueling amount input means for inputting a refueling amount to the vehicle when full tank refueling;
Section travel distance calculation means for calculating a section travel distance that is the travel distance of the vehicle from when the previous fuel supply amount is input by the fuel supply amount input means until the current fuel supply amount is input;
Section fuel consumption calculation means for calculating the section fuel consumption based on the section travel distance calculated by the section travel distance calculation means and the current fuel supply amount input by the fuel supply amount input means;
An in-vehicle electronic device comprising: output means for outputting the section fuel consumption calculated by the section fuel consumption calculation means. The output means outputs a content that makes it conscious to input the amount of oil to be filled when a full tank is refueled within a predetermined time after turning on the power to the in-vehicle electronic device. The vehicle-mounted electronic device described in 1. Section travel distance history storage means for storing a history of section travel distance calculated by the section travel distance calculation means;
A current distance calculating means for calculating a travel distance from the last oil amount input by the oil amount input means to the present;
When the current distance calculated by the current distance calculation means and a reference section distance based on the section travel distance history stored in the section travel distance history storage means have a predetermined proximity relationship, the output means The vehicle-mounted electronic device according to claim 1, wherein an output is made to make the user aware that an oil supply amount is input when the tank is full. The engine includes a fueling determination unit that detects a time until the engine is stopped and restarted, and determines whether or not the detected time corresponds to a standard time required for fueling, and the output unit includes the fueling determination unit. The output of the content which makes it conscious to input the amount of oil supply at the time of the said full tank refueling is performed when it is judged that the detected time corresponds to the standard time required for refueling. The vehicle-mounted electronic device in any one. Average fuel consumption calculating means for calculating an average fuel consumption based on an integrated value of the amount of oil input by the fuel supply amount input means and an integrated value of the section travel distance calculated by the section travel distance calculating means;
The in-vehicle electronic device according to claim 1, wherein the output unit outputs the average fuel consumption calculated by the average fuel consumption calculation unit together with the section fuel consumption. The in-vehicle use according to claim 5, wherein the output means outputs the output in a different output mode when the section fuel consumption is lower than the average fuel consumption and when the section fuel consumption exceeds the average fuel consumption. Electronics. The average fuel consumption calculating means includes an oil supply amount input forgetting instruction input means for inputting an instruction to that effect when the user forgets to input the oil supply amount to the oil supply amount input means. 7. The vehicle-mounted electronic device according to claim 5, wherein, when an instruction to forget to input a fuel amount is input from the means, the current section travel distance is not included in the integrated value of the section travel distance. machine. Informing means for informing an approach warning to the speed measuring device based on the acquired current position and the position of the speed measuring device,
The output means outputs the section fuel consumption to the notification means,
The vehicle-mounted electronic device according to claim 1, wherein the notification unit does not output the section fuel consumption during the approach warning.   The program for making a computer implement | achieve the function as a vehicle-mounted electronic device in any one of Claims 1-8.

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