JP2022137118A - System and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic system and a program which allow an arbitrary selection of plural pieces of driving information of a vehicle and a visual and simultaneous confirmation of the selected driving information.

SOLUTION: Three types of meter objects 45, 51, and 55 are selected from plural meter objects prepared according to driving information of a vehicle, on the basis of a selective input operation by a user, and are displayed on a standby display. Each meter object 45, 51, and 55 are an object which varies according to unique changes of the driving information and executes the unique changes.

SELECTED DRAWING: Figure 12

COPYRIGHT: (C)2022,JPO&INPIT

Description

The present invention relates to an electronic system and a program for displaying on a screen a variable display section prepared according to vehicle driving information.

Various meters are arranged in front of the driver's seat so that the user, for example, the driver, can use them as indicators for judging the state of the vehicle while driving the vehicle. These include, for example, speedometers, rpm meters, water temperature meters, fuel meters, and the like. Patent Document 1 is cited as an example of making various meters visible to the driver in this way.

JP 2003-229776 A

However, there has been a request from users to obtain information other than the information generally available from the meter attached to the vehicle and use it as an index for judging the condition of the vehicle in more detail. In particular, general vehicles that are not designed for racing are often not equipped with anything other than the minimum necessary meters as described above, and it was not possible to easily obtain other driving information of the vehicle.
On the other hand, a vehicle may be equipped with a vehicle information display device such as a navigation device or a microwave detector (radar detector). is expected to be displayed. However, there are various types of vehicle driving information, and the information requested by the user is not always the same. In addition, users often desire to obtain not only one piece of driving information but also a combination of several pieces of driving information. This is because, by obtaining more vehicle information, a more accurate index for judging the driving state of the vehicle can be obtained. However, the required driving information differs depending on the driving situation and the user's level, and the visibility of the driving status displayed on the screen must also be taken into consideration.
Therefore, there has been a demand for a device that can arbitrarily select a plurality of vehicle driving information and provide the user with the plurality of driving information on a screen at the same time.
SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and its object is to provide an electronic system and a program that can arbitrarily select driving information of a plurality of vehicles and simultaneously view the selected driving information. That's what it is.

In order to achieve the above object, in the first means, a plurality of variable displays to be displayed are selected from a plurality of variable display units prepared according to vehicle driving information based on a user's selective input operation. The gist of this is to provide control means for selecting a section and displaying it on the screen, and for changing the display of the plurality of variable display sections displayed on the screen according to the change in the driving information.
With such a configuration, the control means displays on the screen a plurality of variable display portions selected by the user from a plurality of variable display portions prepared according to the driving information of the vehicle, each of which has unique driving information. A variable display is made according to the change. As a result, the user can arbitrarily display a plurality of variable display parts on the screen and visually recognize the driving information of a plurality of desired vehicles. is obtained.

Here, the "variable display section" is an image that varies on the screen corresponding to various vehicle driving information. It is regarded as a broader concept such as displaying driving information in graph form, or schematicizing a specific part of a vehicle and performing variable display in accordance with changes in the driving information. Each of these variable display units changes according to changes in the unique vehicle driving information.
Here, the "electronic system" includes, for example, an electronic device having a housing such as a radar detection device, a navigation device, and a drive recorder as a vehicle information display device. Also, the screen on which the variable display portion is displayed may be integrated with the control means on the electronic system side, or may exist as a separate screen for outputting data wirelessly or by wire from the control means. I don't mind. Also, the electronic system does not necessarily have to be installed in the vehicle. For example, it is possible to install a housing including the control means outside the vehicle, receive vehicle information wirelessly, and perform control so as to display the current fuel consumption state on a screen located inside the vehicle. Also, not all of the control means must be in the vehicle, and some of them may exist outside the vehicle (for example, a server or the like).
In addition, "selective input operation by the user" means inputting with the operation unit for operating the input button or key for selection, or touching the screen when the screen has a touch panel function to display the GUI screen. or input from an external computer via a server located outside the vehicle, input the selected data from an external computer to a storage medium (e.g. SD card), and control means It is conceivable that data can be transferred and input by attaching a storage medium in a housing containing the .
The "screen" can be assumed to be a screen of a display unit having a display section for displaying moving images or still images, such as an organic EL display, a liquid crystal display, or a CRT display. In particular, it is good to use a dot matrix display.

The gist of the second means is that, in addition to the first means, the control means is provided inside the vehicle, and the screen is arranged at a position visible to the driver inside the vehicle.
Although the screen (display means having a screen) could be constructed separately, it is advantageous in terms of handling that at least the main body of the electronic system is mounted on the vehicle together with the control means. When the screen is installed in the vehicle, the screen is arranged in the housing of the electronic system body in which the control means is arranged, or the screen is arranged in the vehicle separately from the electronic system body and the control means It includes both cases of wireless connection and wired connection such as cable connection.

The gist of the third means is that, in addition to the first or second means, the driving information is information obtained from an information output means provided in the vehicle itself.
In other words, it is driving information that can be obtained from the vehicle by some means of obtaining. These information can generally be obtained from the K line or CAN (Controller Area Network), which has terminals on the vehicle diagnostic connector for ODB-II (On-Board Diagnostic System Stage 2), which must be installed in the vehicle. However, if the vehicle has a data acquisition means other than the vehicle diagnosis connector, it can be freely used.
Driving information that can be acquired from the vehicle includes, for example, vehicle speed, injection time, ignition timing, intake air amount, intake air temperature, water temperature, air/fuel correction coefficient, battery voltage, remaining fuel amount, flow rate pulse from the flow meter, Fuel supply amount, engine speed, throttle opening (accelerator opening), throttle sensor voltage, air flow voltage, boost pressure, and the like.

In the fourth means, in addition to any one of the first to third means, the gist is that the driving information is information obtained from an information acquisition means arranged in the vehicle separately from the vehicle. and
Such information obtained from information acquisition means arranged in the vehicle separately from the vehicle is information that cannot be obtained from the vehicle and is an important information source.
Examples of such information acquisition means include current position acquisition means, current time acquisition means, speed acquisition means, acceleration acquisition means, and the like. More specific means for the current position acquisition means, current time acquisition means, and speed acquisition means include, for example, a GPS receiver installed together with a radar detection device, a navigation device, a drive recorder, or the like. Further, as a more specific means of the acceleration acquisition means, for example, an acceleration sensor (two-axis type or three-axis type) installed in a radar detection device, a navigation device, a drive recorder, or the like can be mentioned.

In the fifth means, in addition to any one of the first to fourth means, the variable display section includes a graphical display section and a numerical display section for the driving information, and the control section includes The gist of this is to display numerical values in a manner in which the display elements in the graphical display section are associated with each other.
By adopting such a configuration, numerical values are displayed in a manner associated with the variation of the graphical display portion, so that the variation of the graphical display portion can be visually recognized and at the same time, accurate numerical values corresponding to the variation can be displayed. information can be obtained.
Here, "to display numerical values in a manner associated with the display elements in the graphical display section" means, for example, a case in which numerical values are written in a position adjacent to a meter object, which will be described later, or the current driving state in a graph, which will be described later. is displayed in relation to the plot position.
The gist of the sixth means is that, in addition to the fifth means, the scale of the numerical display portion is changed according to changes in the driving information of the vehicle.
For example, at the beginning of vehicle travel, the speed, engine load, and engine speed are not so high. On the other hand, after a while from running, both become large. Therefore, it is possible to display in a small scale at first, and then increase the scale as the vehicle travels, thereby enabling a more optimal and efficient display. In particular, since the screens of in-vehicle devices are small, it is desirable to be able to change the scale in this way. The same applies to the case where the vehicle speed decreases in the stop direction from the normal running state, and in this case, the scale is set to be small.

In the seventh means, in addition to any one of the first to sixth means, the control means displays information irrelevant to the content of information displayed on the variable display section on the screen at the same time as the variable display section. is the gist of it.
By adopting such a configuration, while a plurality of variable display portions are displayed on the screen, for example, a predetermined event occurs without relation to the variable element that changes the variable display portion currently displayed on the screen. Other information about the event can be displayed on the screen, such as when the event occurs. As a result, other information that suddenly warns the user is transmitted as temporary information while continuing to display the current variable display part on the screen without erasing the variable display part from the screen. can be made

In the eighth means, in addition to any one of the first to seventh means, a meter object is provided as the variable display section, and the control means displaces a pointer object in the meter object according to changes in the driving information. The gist of this is to perform a variable display.
In other words, it is changed in such a manner that the hands actually rotate according to changes in the driving information. Since the user visually recognizes the daily driving information in the form of a meter, it is easier to grasp the driving information if it is a variable display that is often seen in such a meter form. Driving information suitable for variable display by such pointer objects includes, for example, fuel consumption information, cooling water temperature information, engine speed information, vehicle speed information, engine load factor information, and the like.

In the ninth means, in addition to any one of the first to eighth means, a meter object is provided as the variable display section, and the control means changes the background in the meter object according to the change in the driving information. The gist of this is to perform a variable display in which the area occupied by the index object corresponding to the amount changes.
In other words, the area displayed in the meter object is changed according to changes in the driving information. As with the above, the user visually recognizes the daily driving information in the form of a meter, so the variable display often seen in such a meter form makes it easier to grasp the driving information. The direction of change in the area can be assumed to be the direction of rotation or the direction of up, down, left, or right. A change in area includes not only a change in the boundary line position between regions divided by different colors and brightness on the screen, but also a case where lines and patterns occupying one region are expressed by increasing or decreasing.
For example, throttle opening information, engine load factor information, and the like are examples of driving information suitable for variable display according to changes in the area occupied by the index object.

In the tenth means, in addition to the eighth or ninth means, the outlines of the meter objects are identical or similar in shape, and the control means displays a plurality of the variable display portions on the screen. The gist of this is to display them in the same size when they are used.
With such a configuration, when a plurality of meter objects are displayed on the screen, they are displayed in the same size even if they display different driving information. Since the screen size does not change, as the number of meter objects displayed on the screen increases, the size of the meter objects will gradually decrease to fit on one screen. It is preferable to arrange them in series in the horizontal direction from the standpoint of visibility, but when the number of meter objects to be displayed increases, they may be arranged in two or more rows in order to secure a larger size as much as possible.

In the eleventh means, in addition to any one of the first to seventh means, a specific part of the vehicle is modeled for the driving information as the variable display unit, and the specific vehicle is displayed in a variable manner in accordance with the change in the driving information. The gist of this is to provide a part object.
Such a specific vehicle part object has a very different appearance from the variable display part such as a meter that is standardly installed in the car, and since it will have an animation-like variable operation, it is highly visible to the user. It appeals and is excellent as a variable display unit.
A schematic representation of a specific part of the vehicle is preferably a part that moves as the vehicle runs, and moreover, a part that changes its movement depending on the driving conditions.
For example, the most important vehicle information is the partial cross-sectional shape around the engine (internal structure and surroundings), and the rotational movement of tires.
In this case, the fluctuation display is, for example, a change in the structure around the engine (change in speed of reciprocating motion of piston, change in rotational speed of crankshaft, change in speed of reciprocating motion of intake and exhaust valves, change in speed of other cams, camshafts, etc.) ) or change in shape such as a change in the rotational speed of a tire, or a change in the color of the members constituting these objects. A change in color is a concept that includes not only a change in saturation but also a change in brightness.

The gist of the twelfth means is that, in addition to any one of the first to eleventh means, the control means causes the variable display section to display a variable display based on a plurality of pieces of the driving information.
In such a configuration, the specific vehicle part object is mixed with parts that perform variable display corresponding to a number of driving information, so that a plurality of changes in driving information can be simultaneously given to the user as information, and a plurality of driving information can be displayed simultaneously. It is no longer necessary to separately prepare a number of variable display units for transmitting driving information to the user.
More specifically, for example, a trip meter-like display as a meter object, that is, a variable display of corresponding driving information such as the distance traveled since the setting and the average fuel consumption and average speed during that time. It is possible to assume a variable display unit that allows
In the case of the specific vehicle part object, for example, the change in the internal structure of the engine can be displayed based on certain driving information by changing the shape of the piston object or the like. It can be assumed that the display is realized by changing the color of a piston object or the like.

In the thirteenth means, in addition to any one of the first to seventh means, the variable display unit uses the two types of driving information as vertical and horizontal axes of the graph, respectively, and displays the two types of driving information acquired by the vehicle. The gist of this is that it is a graph object that displays positions corresponding to numerical values of information on the graph.
In other words, a graph with two arbitrary types of driving information on the vertical axis and the horizontal axis is displayed as a graph object on the screen as a kind of variable display section. This is because displaying the correlation between the two types of driving information in real time makes it possible to determine the state of the vehicle more precisely. In addition, although such a graphed information display mode is useful as an index for judging the driving state of the vehicle, it is generally not displayed on the vehicle. is beneficial for
As for the display mode on the graph, it is possible to always display the intersection of the current values on the vertical and horizontal axes on the graph, or display vertical and horizontal line segments and use the intersection position as the point indicating the current state. good. Also, only the current state may always be displayed, or the past history may be displayed at the same time.
The two types of driving information are, for example, speed on the vertical axis and engine speed on the horizontal axis, or fuel flow on the vertical axis and driving time on the horizontal axis, especially if they are correlated information. It is not limited.

The gist of the fourteenth means is that, in addition to the thirteenth means, the control means displays a numerical value corresponding to the driving information in association with the current position on the graph.
With such a configuration, it is possible to obtain numerical information as to what exactly the current position on the graph is.
Here, "associating with the current position on the graph" means that when the numerical value is displayed, it is not necessarily in the vicinity of the position on the graph, but if the numerical value is displayed in relation to the position on the graph that is displayed. It means enough.
In the fifteenth means, in addition to the fourteenth means, the position on the graph is indicated by the intersection of a first straight line parallel to the vertical axis and a second straight line parallel to the horizontal axis on the graph. The gist of the control means is that the numerical value of the axis intersecting each of the straight lines is written on each of the straight lines as a numerical value corresponding to the operation information.
The fifteenth means is a specific example of the fourteenth means. Regarding "associating with the position on the graph", when the intersection of the first straight line and the second straight line is the position on the graph in this way In this case, the lines are written on each straight line instead of near the intersection point of the line, so that there is some latitude in the writing position. Also, the visibility in the vicinity of the intersection is improved. In this case, the intersection of the first straight line and the second straight line should preferably be in a fixed area of the graph. It is preferable to

The gist of the sixteenth means is that, in addition to any one of the thirteenth to fifteenth means, the control means displays a history of positions on the graph acquired at predetermined timings.
This means that the history of past graph positions is displayed as well as the current graph positions. This is because such a configuration serves as an important indicator for determining what kind of driving situation was.
Since the history is acquired at a predetermined timing, it is displayed as scattered positions, but it may be displayed as it is in a scattered pattern, or may be displayed in other forms of expression, such as a line graph or a bar graph.

The gist of the seventeenth means is that, in addition to the sixteenth means, the number of display histories of the positions displayed on the graph is limited, and the control means deletes the oldest histories.
As the past history positions gradually increase on the graph, the screen becomes rather difficult to see. Therefore, by deleting the history from the oldest one, the number of history displayed on the screen is limited to make it easier to see. The maximum number of histories displayed on the screen varies depending on the size of the screen, that is, the number of pixels. .
The gist of the eighteenth means is that, in addition to the sixteenth or seventeenth means, the display time of the history of the position information displayed on the graph is limited.
As in the seventeenth means, this is to prevent the graph from becoming difficult to see due to the gradual increase of past history positions on the graph. For example, only the history acquired in the past 15 minutes from the current time is always displayed, and the history positions acquired before 15 minutes are erased.
The gist of the nineteenth means is that, in addition to the seventeenth or eighteenth means, the update timing of the display of the position information on the graph is one second or less.
This is because if the update timing is too long, the data may become coarse information and may be meaningless. On the other hand, even if the time is too short, when the history is recorded in terms of time as in the fourteenth means, even if the time is short, the number of times is very large. Also, even if it is intended to leave a history for a certain amount of time, there is a possibility that the history displayed on the screen is too large to be understood as driving information. Therefore, the update timing is preferably 5 ms (milliseconds) or longer although it is 1 second or shorter.

In the twentieth means, in addition to any one of the first to nineteenth means, the driving information includes fuel consumption information, cooling water temperature information, fuel flow information, engine speed information, vehicle speed information, engine load factor information, throttle The gist of this is that it is any one of opening degree information, vehicle position information, current time information, and acceleration information. Fuel economy is the rate of fuel consumption.
These are examples of vehicle driving information. The fuel consumption information includes instantaneous fuel consumption, current fuel consumption, average fuel consumption for all roads, average fuel consumption for ordinary roads, and average fuel consumption for highways.
The gist of the twenty-first means is a program for causing a computer to realize the function of the control means in the electronic system according to any one of the first to twentieth means.

According to the present invention, the user can simultaneously and arbitrarily obtain driving information of a plurality of vehicles from a meter other than the meter originally installed in the vehicle, so that the driving state of the vehicle can be accurately judged according to the user's request. An index is obtained.

1 is a front perspective view of a radar detection device according to an embodiment of the present invention; FIG. FIG. 4 is an explanatory diagram for explaining a connection structure when connecting a main cable of the radar detection device of the same embodiment to a vehicle diagnosis connector via a connection adapter; 1 is a front view of a vehicle diagnostic connector installed in a vehicle; FIG. FIG. 2 is a block diagram for explaining an electrical configuration of the embodiment; FIG. (a) to (g) are schematic diagrams of images of meter objects to be displayed on the standby screen. FIG. 4 is a schematic diagram of an image of a graph object to be displayed on the standby screen; FIG. 4 is a schematic diagram of an image in the initial stage of running of an engine object to be displayed on the standby screen; FIG. 4 is a schematic diagram of an image of a graph object to be displayed on the standby screen; (a) to (g) are images of actual meter objects displayed on the standby screen corresponding to (a) to (g) in FIG. FIG. 4 is a schematic diagram of an image of a first table object displayed on the standby screen; The schematic diagram of the image of the 2nd table|surface object displayed on a standby screen. FIG. 4 is a schematic diagram of a standby screen created by combining a standby image with an image of a meter object; FIG. 4 is a schematic diagram of a standby screen created by combining a standby image with an image of a graph object; FIG. 4 is a schematic diagram of a standby screen created by combining an image of an engine object and an image of a first table object in a standby image; FIG. 4 is a schematic diagram of a standby screen created by combining a standby image with an image of a second table object; (a) and (b) are schematic diagrams of screens to which GUI input is possible displayed on the display unit for setting the standby screen. (a) to (db) are schematic diagrams of GUI input screens displayed on the display unit for setting the standby screen. An actual standby screen created by combining a standby image corresponding to FIG. 12 with an image of a meter object. The standby screen created by combining the standby image corresponding to FIG. 13 with the image of the graph object. A standby screen created by combining an engine object image and a first table object image with the standby image corresponding to FIG. 14 . A standby screen created by combining the standby image corresponding to FIG. 15 with the image of the second table object.

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments embodying the present invention will be described below with reference to the drawings.
FIG. 1 is an external perspective view of a radar detection device 10 as an electronic system (electronic device). The radar detection device 10 has a mechanism housed in a substantially rectangular parallelepiped housing 11 serving as a main body, and is fixed to, for example, a dashboard in a vehicle via a mounting bracket 12 .
A display unit 14 is exposed in a frame-like front frame 13 arranged on the front surface of the housing 11 (the surface facing the driver). In this embodiment, the display unit 14 is composed of a small 4.3-inch liquid crystal display. The display unit 14 also serves as a touch panel as input means. A slot 15 for inserting an SD card as a storage medium is formed on the side of the housing 11 . A main cable 17 extends from the rear surface of the housing 11 (the surface facing the front window). As shown in FIG. 2, a female connector 18 is fixed to the tip of the main cable 17 . A power switch (not shown) is formed on the rear surface of the housing 11 .
As shown in FIG. 2, the radar detection device 10 is connected via a connection adapter 21 to a vehicle diagnostic connector 22 having a front shape as shown in FIG. The vehicle diagnostic connector 22 as an information output means is arranged at a predetermined position (which varies depending on the vehicle type) in the vehicle so as not to interfere with driving. The connection adapter 21 has a male connector 24 and a connection connector 25 at both ends of a connection cable 23 . A female connector 18 at the tip of a main cable 17 extending from the radar detector 10 is connected to a male connector 24, and a connecting connector 25 is connected to a vehicle diagnosis connector 22 installed on the vehicle side. In this embodiment, the radar detection device 10 obtains power from the IGN signal terminal in the vehicle diagnosis connector 22, but a DC power jack for obtaining power from, for example, a cigarette lighter socket may be provided. is also possible.

Next, the electrical configuration inside the housing 11 of the radar detection device 10 will be described based on the block diagram of FIG. It should be noted that configurations that are not directly related to the present invention will be omitted.
A position detector 31, a microwave detector 32, a radio receiver 33, a memory card reader 34, an acceleration sensor 35, a database 36, and the display unit 14 are connected to the controller MC as control means.
The controller MC is composed of a well-known CPU, memories such as ROM and RAM, timers, and the like. The map data is called up in the ROM of the controller MC, and displayed on the display unit 14 in association with the obtained target object data and detection data of a speed measuring device (mobile radar, etc. (hereinafter simply referred to as "radar")). GPS information processing program for processing GPS information received by the GPS receiver 37; microwave determination program for determining microwaves received by the microwave detector 32; A radio wave determination program for determining radio waves, a fuel consumption calculation program for arbitrarily acquiring various vehicle information output from the vehicle diagnostic connector 22 and executing calculations of fuel flow rate, various fuel consumption, etc. based on the information, and a user a standby screen display program for displaying a predetermined standby image as a standby screen on the display unit 14 by operating a variable display program for variably displaying a predetermined object in the predetermined standby image displayed on the display unit 14; OS (Operation System), etc. In the RAM, various vehicle information obtained from the vehicle diagnosis connector 22, calculated values calculated by the fuel consumption calculation program, and position information detected by the position detector 31 are stored. is stored.
The controller MC converts the vehicle information output to the K line or CAN of the vehicle diagnostic connector 22 on the vehicle side via the interface 28 into a processable communication protocol, such as a UART signal.

The position detector 31 serving as current position acquisition means, speed acquisition means, and current time acquisition means is equipped with a GPS receiver 37 that acquires GPS information as the core of its configuration. Detect the position of the vehicle at the current time. The detected positional information is the speed, latitude, longitude and altitude of the own vehicle. The microwave detector 32 detects predetermined microwaves from the received microwaves. The radio receiver 33 detects predetermined radio waves from the received radio waves. The memory card reader 34 reads the data of the SD card as a memory card inserted into the slot 15 to be inserted, or updates the data of the SD card.
The acceleration sensor 35 as acceleration acquisition means is a three-axis type sensor that detects acceleration and tilt in each of three axes (X, Y, Z), and always outputs detected values to the controller MC.
The database 36 is a non-volatile memory (for example, EEPROM) inside the controller MC or externally attached to the controller MC. In this embodiment, the database 36 stores object data to be displayed on the display unit 14 in the standby state, master image data, various font data to be displayed on the display unit 14, and the like. These data may be stored in the ROM.
Further, the controller MC detects the state of contact with the display unit 14 at a timing of several milliseconds, and performs processing according to a command by GUI input.

In such an electrical configuration, the controller MC outputs a command according to a predetermined protocol to the K line or CAN terminal of the vehicle diagnostic connector 22, and acquires predetermined vehicle information via the K line or CAN. The driving information that can be acquired includes vehicle speed (vehicle speed), injection time, ignition timing, intake air volume, intake air temperature, water temperature, air/fuel correction coefficient, battery voltage, remaining fuel amount, flow rate pulse from the flow meter, refueling volume, engine speed, throttle opening (accelerator opening), throttle sensor voltage, air flow voltage, boost pressure, and the like. Fuel flow rate, instantaneous fuel consumption, fuel consumption per driving (present fuel consumption), past driving fuel consumption (average fuel consumption for all roads), highways, etc. If calculations are necessary for average fuel consumption, average fuel consumption on general roads, travel distance, engine load factor, etc., they are calculated and acquired as secondary information. Although the vehicle speed can also be obtained by the GPS receiver 37 as described above, the vehicle speed obtained from the vehicle diagnostic connector 22 is given priority in the present embodiment.
There are several means (calculation methods) for obtaining the fuel flow rate. First, when the fuel consumption value is periodically output from the vehicle side, the value is used as it is. On the other hand, if the regular fuel consumption value cannot be acquired, it can be calculated by a known method based on either the intake air amount or the injection injection time at a fixed sampling time. Injection injection time is used in this embodiment. Although the sampling time is arbitrary, it is set to 1 second here.
The injection injection time (valve opening time) can be calculated by giving a predetermined correction value to the output of the air flow meter (air flow rate of the intake duct) and the engine speed, and performing various predetermined corrections. This corrected fuel flow rate is used as the consumed fuel. Let the fuel flow rate for one second corresponding to the sampling time be the obtained fuel flow rate. By dividing the accumulated value of the obtained fuel flow rate for a predetermined time by that time, the average fuel flow rate for that time can be calculated.
As for the instantaneous fuel consumption, first, when the instantaneous fuel consumption is periodically output from the vehicle side, the value is used as it is. If it cannot be obtained, the travel distance is calculated from the vehicle speed and the travel time at a fixed sampling time, divided by the fuel flow rate, and calculated by giving a correction value. The speed of the vehicle is obtained from the vehicle diagnostic connector 22, and the time is obtained from a known timer attached to the controller MC. Alternatively, it may be calculated by giving predetermined correction values to the output of the air flow meter and the engine speed, and performing various predetermined corrections.
Average fuel consumption is calculated from accumulated instantaneous fuel consumption and running time. The controller MC calculates the average fuel consumption from the start of the engine to the present.
The fuel consumption per operation is calculated by accumulating the acquired fuel flow rate from the start to stop of the engine, calculating the distance traveled during that time, and dividing the result. The cumulative fuel consumption amount of past driving is calculated by integrating the past fuel flow rate, calculating the total traveled distance, and dividing it.
Expressway average fuel consumption recognizes the driving road as an expressway based on expressway information (toll gate position and rampway), integrates the fuel flow rate only for the acquired expressway, and calculates the total travel distance on the expressway. It is calculated by dividing the integrated fuel flow rate.
The average fuel consumption on general roads is calculated by accumulating the fuel flow rate on roads other than highways, calculating the total mileage on roads other than highways, and dividing the total fuel flow rate.
The engine load factor is calculated as the ratio of the current intake air amount to the maximum intake air amount.

Next, various objects and the like whose display is controlled by the controller MC as a part of the standby screen of the display unit 14 will be described with reference to FIGS. 5 to 14. FIG. FIGS. 5 to 14 show objects that are varied and displayed based on the vehicle driving information obtained from the vehicle diagnosis connector 22, which is information output means.
The controller MC calls up various object data stored in the ROM, combines them with the master image data of the standby image similarly called up, and displays them variably according to changes in the driving information. The liquid crystal display of the display unit 14 generally displays characters and objects with saturation and brightness on a black background. In this embodiment, since there are restrictions on representation in the drawings, some details are omitted, the background is shown in white, and characters and objects are represented in black, hatched lines, and the like. Examples of actual display modes of various objects on the display unit 14 are shown in FIGS. 9 and 18 to 21. FIG.
Object data other than those specific to the present invention (a clock object that displays the time, a level object that displays the degree of inclination of the vehicle, an acceleration display object that displays the direction and magnitude of acceleration applied to the vehicle, and GPS positioning data) The earth object indicating the position of the received satellite) and the master image of the standby image to be combined with them are omitted from the illustration.

As shown in FIG. 5(a), five types of fuel consumption (instantaneous fuel consumption, current fuel consumption, all road average fuel consumption, expressway average fuel consumption, general road average fuel consumption) as a plurality of driving information and a change in cooling water temperature A first meter object 40 is prepared for variable display. In other words, the first meter object 40 is an object that can display a plurality of pieces of driving information. The display image that is actually developed on the display unit 14 of the first meter object 40 is shown in FIG. 9A (however, it is displayed in black and white and does not show saturation. The same applies hereinafter).
The first meter object 40 has a circular surrounding ring 41 as its outline. Surrounding ring 41 is actually decorated with metallic reflective portions as if it were made of metal. On the surrounding ring 41, screw objects 41a are arranged at positions shifted by 30 degrees from the 12 o'clock position (12 in total). A circular inner region surrounded by the surrounding ring 41 is divided into upper and lower halves at the central position. The upper region 40a is provided with a fan-shaped display portion 42 having a fan-shaped window-shaped image. A pointer object 43 extending outward from the center of the first meter object 40 is displayed in the fan-shaped display portion 42 . The controller MC causes the pointer object 43 to oscillate horizontally within the fan-shaped display portion 42 according to the value of the driving information, with the center as the base position. As for the position suggested by the pointer object 43, the value is low (L) on the left side of the figure, and the value is high (H) on the right side. A block object 44 serving as an index indicating the position of a simple pointer object 43 is displayed at the outer peripheral position of the fan-shaped display portion 42 . Since the first meter object 40 is common to a total of six different types of driving information, ie, five types of fuel consumption and cooling water temperature, the numerical values indicated by the scales differ depending on the driving information. The controller MC causes the lower area 40b of the first meter object 40 to display the obtained value of the currently selected driving information along with its unit. For example, in FIG. 5, the instantaneous fuel consumption is displayed as "60 km/l", and it can be understood numerically that the instantaneous fuel consumption is 60 km per liter.

As shown in FIG. 5(b), a second meter object 45 for displaying driving information that varies according to changes in the fuel flow rate has an outer shape of an enclosing ring 41 similar to that of the first meter object 40. However, the internal area is divided into upper and lower halves. The display image actually developed on the display section 14 of the second meter object 45 is shown in FIG. 9(b).
The controller MC causes the upper region 45a to display a variable region 46 in which the interface rises and falls as if the water surface rises and falls in the upper region 45a in a different color from the background. As the fuel flow increases, the interface moves upward. The controller MC causes the lower area 45b of the second meter object 45 to display the obtained value of the current fuel flow along with its units. Since the fuel flow rate is the amount (milliliter) that flows in one minute, ml/m is displayed as a unit.

As shown in FIG. 5(c), a third meter object 47 for displaying driving information in accordance with changes in the engine speed has an outer shape of the surrounding ring 41 similar to that of the first meter object 40. have. The display image actually developed on the display section 14 of the third meter object 47 is shown in FIG. 9(c). Within the circular area 47a of the third meter object 47, a pointer object 48 is displayed extending outward from the center of the circular area 47a. The pointer object 48 has a center position as a rotation base, and the controller MC causes the pointer object 48 to perform a variable display such that it rotates in the left-right direction with the center as the base position in response to changes in the engine speed. Rotation to the right is the direction of increase. x1000 rpm, which is the unit of the engine speed, is displayed as driving information at a position slightly lower than the center of the circular area 47a. A scale is displayed on the outer peripheral position adjacent to the surrounding ring 41 of the circular area 47a. One scale indicates 0.2, and numerical values corresponding to integer positions such as 0, 1, 2, 3, . . . are arranged clockwise. The 0 position of the scale is arranged corresponding to the position of the screw object 41a at the 7 o'clock position, and the maximum scale of 10 is arranged at the screw object 41a at the 5 o'clock position. The scale of the integer position extends to the surrounding ring 41 and at the same time the integer position corresponds to the position of the screw object 41a. In other words, the decorative screw object 41a also functions to complement the scale, making it easier to determine the position of the pointer object 48 in the small meter object. The scale does not start at the 6 o'clock position so that the positions of the minimum and maximum values do not overlap.

As shown in FIG. 5(d), a fourth meter object 49 for displaying driving information in accordance with changes in vehicle speed has substantially the same shape as the third meter object 47. As shown in FIG. The only difference in shape from the third meter object 47 is the unit and interval of the scale and the position of the screw object 41a.
The scale is engraved from 0 to 240 so that one scale is 5 km/h. A numerical value corresponding to every 20 km/h is arranged clockwise. The number of screw objects 41a in the fourth meter object 49 is 14 in total, and they are arranged at positions shifted by about 25.7 degrees from the 12 o'clock position. The scale of the number positions is long and extends up to the surrounding ring 41, and at the same time the number positions correspond to the positions of the screw objects 41a. As a result, the position of the screw object 41a is associated with the position of the screw object 41a with each 20 km/h of the vehicle speed scale prepared from 0 to 240 with one scale of 5 km/h. With the screw object 41a (corresponding to 0 m/h) adjacent to the left of the figure at 6 o'clock as the starting point, the screw object 41a corresponds to the scale every 20 km/h in a clockwise direction. The adjacent screw object 41a (corresponding to 240 km/h) is the corresponding end point. This makes it easier to determine the position of the pointer object 48 in the small meter object as described above.
The display image actually developed on the display unit 14 of the fourth meter object 49 is shown in FIG. 9(d).

As shown in FIG. 5(e), a fifth meter object 51 for displaying a variable display in accordance with a change in the engine load factor as driving information has an outer shape of an enclosing ring 41 similar to that of the first meter object 40. The internal area is divided into upper and lower halves. The display image actually developed on the display unit 14 of the fifth meter object 51 is shown in FIG. 9(e). The upper area 51a is a fan-shaped display portion 52 of a fan-shaped window-shaped image similar to the first meter object 40, and the controller MC is a small fan-shaped index object divided into small pieces along the circumferential direction of the fan. 53 is increased or decreased in accordance with the change in the engine load factor to change the area of different colors against the background. The index object 53 is displayed to increase from right to left as the engine load factor increases. In the present embodiment, the index objects 53 appearing in a region with a small engine load factor and the index objects 53 appearing in a region with a large engine load factor have different colors (the same gradation in FIG. 5(e)). , but the reality is different). For example, in areas where the engine load factor is small, the color is displayed in blue, which means safety. It is made to display in red which is a color. In the lower area 51b of the fifth meter object 51, the acquired value of the current engine load factor is displayed together with its units. Since the engine load factor is expressed as a percentage, % is displayed as a unit.

As shown in FIG. 5(f), the sixth meter object 55 for displaying driving information in accordance with changes in the throttle opening has the same outer shape of the surrounding ring 41 as the first meter object 40. The inner circular area is divided into upper and lower halves. The display image actually developed on the display section 14 of the sixth meter object 55 is shown in FIG. 9(f). The upper area 55a is a fan-shaped display portion 56 of a fan-shaped window-shaped image similar to the first meter object 40, and the controller MC occupies the fan-shaped display portion 56 of the fan-shaped object 57 along the fan-shaped circumferential direction. By increasing or decreasing the area according to the change of the throttle opening, the image display is performed so that the area with different colors is changed against the background. As the throttle opening increases, the area of the fan-shaped object 57 increases from right to left as the fan opens. The fan-shaped object 57 represents the opening amount of the throttle valve. Here, the area occupied by the fan-shaped object 57 against the background corresponds to the throttle opening. may correspond to In the controller MC, the value obtained as the current throttle opening is displayed in the lower area 55b of the sixth meter object 55 together with its unit. Since the throttle opening is expressed as a percentage, % is displayed as a unit.

As shown in FIG. 5(g), a seventh meter object 58 for displaying two types of driving information, i.e., a change in a predetermined distance and a change in fuel consumption during that time, as numerical values, is the same as the first meter object. It has the same outline of surrounding ring 41 as 40, with the inner area divided into upper and lower halves. The seventh meter object 55 functions as a so-called trip meter. The display image actually developed on the display section 14 of the seventh meter object 58 is shown in FIG. 9(g).
The controller MC causes the upper area 58a to display the distance from the reset to the present. The lower area 58b displays the fuel consumption up to the present time after the reset. A reset button object 59 is displayed on the right side of the upper area 58a and the lower area 58b, and the reset can be performed by GUI operation on the display unit 14. FIG.

As shown in FIG. 6, in a graph object 61 that graphs the correlation between vehicle speed and engine speed as driving information, the vehicle speed is set on the vertical axis and the engine speed is set on the horizontal axis. A display image of the graph object 61 actually developed on the display unit 14 is as shown in FIG. The controller MC acquires the vehicle speed and the engine speed at a predetermined timing (every second in this embodiment), and plots the position on the graph object 61 as a light spot occupying a certain number of pixels. The plotted light spots that show the correlation between the vehicle speed and the engine speed at a certain time remain as a history, and the driving information that shows the correlation between the vehicle speed and the engine speed is recorded on the graph object 61 as time passes. It will be done. When the number of histories (light spots) plotted on the graph object 61 reaches a predetermined maximum number (500 in this embodiment), the controller MC erases the oldest data from the screen. This prevents the screen from becoming full of dots and meaningless as driving information, and always displays the latest vehicle speed and engine speed for several minutes (500 dots = 500 seconds, so about 8 minutes or more). The correlation between the numbers is provided as driving information in an easy-to-understand manner for the user.
Here, there is no indication of when the plotted position was plotted, and it is simply expressed as a light spot on the graph, so what is the current correlation between vehicle speed and engine speed? is difficult to understand. Therefore, in order to clarify the correlation between the vehicle speed and the engine speed at the present time, the controller MC passes through the positions on the graph of the vehicle speed and the engine speed at the present time in the graph object 61 . Two current position indication lines 62a and 62b parallel to the axis of are displayed. The position plotted at the intersecting position P of these current position indication lines 62a and 62b indicates the current vehicle speed and engine speed. In addition, as shown in FIG. 6, the controller MC controls the accurate vehicle speed and engine speed so that the end positions of the current position indication lines 62a and 62b in the margins of the graph object 61 follow the movement of the current position indication lines 62a and 62b. Display numbers as numbers.

The units of the vertical and horizontal axes of the graph object 61 are km/h and rpm, respectively, but their scales are not constant and fluctuate according to driving conditions.
For example, if it is now within a few seconds from the start, the vehicle speed and rotation speed are still low. Therefore, as shown in FIG. 7, in the initial state of the graph object 61, the vehicle speed scale has a maximum value of 50 km/h, and the maximum engine speed displayed in the display area is up to 2000 rpm. In other words, do not display too large values as a scale.
However, when the vehicle speed increases and the engine speed also increases, the controller MC increases the scale according to the obtained vehicle speed and engine speed (scale-up).
The timing of scale-up depends on the transition to the vehicle speed or engine speed in the band to which the vehicle speed or engine speed belongs. In other words, when the vehicle speed or engine speed exceeds a certain level, the maximum vehicle speed and engine speed in the band to which the vehicle speed or engine speed belongs is set as the maximum value to be displayed in the display area, and the scale on the graph is set accordingly. Vary the unit quantity that is meant. For example, when the vehicle speed range is 0 to 49 km/h, the maximum value displayed in the display area is 50 km/h. 100 km/h is displayed as a screen. In this case, the initial scale is 5 km/h as shown in FIG. 7, but the speed is scaled up to 20 km/h as shown in FIG.
The engine speed is 2,000 rpm from 0 to 1,999 rpm, and similarly, the controller MC scales up at a stage exceeding 2,000 rpm, for example, as shown in FIG. Conversely, when the vehicle speed becomes 50 km/h or less, or when the engine speed becomes 2000 rpm or less, the scale is reduced (scale down).

The controller MC displays the maximum values of the vehicle speed and the engine speed of the vehicle in the past as the maximum values on the screen when scaled up. For example, assume that the vehicle has traveled at a maximum speed of 95 km/h in the past. The maximum value displayed in the display area is made to correspond to the band to which a certain vehicle speed belongs. For example, if the maximum speed is 50-99 km/h, the maximum value is 100 km/h, and if the maximum speed is 100-149 km/h, 150 km/h. Alternatively, the maximum engine speed is 3000 rpm from 2000 to 2999 rpm, and the maximum value is 4000 rpm from 3000 to 3999 rpm. These operating histories are stored, for example, in the RAM of the controller MC. Then, the controller MC sets the maximum value of the band to which the maximum speed and the maximum engine speed up to now belong to the maximum value displayed in the display area at the time of scale-up in the subsequent display by the graph object 61 . With such a display mode, it is possible to develop the history on the graph object 61 centering on the correlation between the vehicle speed and the engine speed that match the driving tendency of the vehicle. The area of the engine speed region can be reduced from the graph object 61 .

As shown in FIG. 8, an engine object 65 for variably displaying changes in both the engine speed and the engine load factor as operating information is a variable object representing a partial section of the engine interior. . Contents constituting the engine object 65 are a cylinder block 66 , a piston 67 , an intake/exhaust valve 68 , and an impeller 70 of a turbocharger 69 . Here, the cylinder block 66 and the housing of the turbocharger 69 are shown in cross section. The controller MC executes an animation in which the piston 67 moves up and down at a higher speed and the impeller 70 rotates at a higher speed as the engine speed increases. Further, the controller MC controls the color of the entire piston 67 displayed on the screen so as to correspond to changes in the engine load factor. That is, as the engine load factor increases, the color of the piston 67 is darkened (changed to a more conspicuous color). In this embodiment, when the engine load factor increases, the color changes to red, which is a dangerous color, in the order of metal color→light pink→pink→red. A display image actually developed on the display unit 14 of the engine object 67 is as shown in FIG.

As shown in FIG. 10, in this embodiment, a first table object 71 is prepared for displaying the current numerical values of the engine load factor, throttle opening, fuel flow rate, and instantaneous fuel consumption. The first table object 71 is used to display on the standby screen simultaneously with the engine object 65 . This is because these items are information that is strongly related to the engine object 65 and preferably displayed together with the engine object 65 .
As shown in FIG. 11, the current fuel consumption, average fuel consumption on all roads, current fuel consumption, general road fuel consumption, fuel flow rate, expressway fuel consumption, vehicle speed, engine speed, cooling water temperature, engine load factor, and throttle opening A second tabular object 72 is provided for displaying numerical values of driving information. These 11 types of driving information are used to be displayed alone on the standby screen as important vehicle driving information obtained from the vehicle diagnostic connector 22 . These eleven types of driving information are information that is variably displayed by the first to seventh meter objects 40, 45, 47, 49, 51, 55, and 58 described above.

Next, the configuration of the standby image for the standby screen prepared in this embodiment will be described. In this embodiment, the first to seventh meter objects 40, 45, 47, 49, 51, 55, 58, the graph object 61, the engine object 65, the first table object 71, the second table object 72 Four types of standby images to be displayed on the display unit 14 in combination with are described.
12 to 15 are standby screens created by combining these objects with the standby image P1. 12 is combined with the second, fifth and sixth meter objects 45, 51, 55, FIG. 13 is combined with the graph object 61, FIG. 14 is combined with the engine object 65 and the first table object 71, FIG. 15 is combined with a second tabular object 72 .
A time object 75, various status icons 76, a speed object 77, and a compass icon 78 are arranged in a line in the horizontal direction in the upper area of the screen of the standby image P1. A time object 75 displays the current time. Various status icons 76 display the status available based on the location of the vehicle. A speed object 77 displays the current speed of the vehicle. The compass icon 78 serves as an index for displaying the azimuth of the traveling direction of the vehicle, and also serves as a switching input section for switching display screens by operating the compass icon 78 on the display section 14 with a GUI, as will be described later. A wireless character alarm display space 79 is provided in the lower area of the screen (area surrounded by two-dot chain lines in the figure). The controller MC causes the wireless character warning display space 79 to display a warning display in the form of a telop in the wireless character warning display space 79 according to target data, radar detection data, and the like. Since the warning display appears only in the wireless character warning display space 79, it does not interfere with the variable display of the object that fluctuates in its upper position. As the warning display, a predetermined (here, For example, "LH system") is displayed.

Here, as shown in FIG. 2, in the case of displaying three types of objects, they are arranged in a row in the horizontal direction with the same external size. If the selected objects are the first to seventh meter objects 40, 45, 47, 49, 51, 55, and 58, all of them have exactly the same external dimensions of the enclosing ring 41, and the so-called "triple meter style" is displayed. will be displayed in
In order to inform the user of what kind of driving information is being displayed when selectively displaying three types of standby images P1, the controller MC displays a driving information display area 80 (encircled by a two-dot chain line in the figure). The content of the driving information displayed by the object is displayed in Japanese name for each object displayed in the area). In FIG. 14(a), "fuel flow rate", "engine load factor" and "throttle opening" are displayed as operating information corresponding to the second, fifth and sixth meter objects 45, 51 and 55 selected and displayed as an example. It will be displayed at the area 80 position.
18 to 21 are the display images actually developed on the display unit 14 of FIGS. 12 to 15. FIG.

Next, a setting operation for setting a standby screen in such a radar detection device 10 will be described. Here, an example of setting the standby screen shown in FIG. 12 will be described.
First, the case of selecting arbitrary three types of meters from the first to seventh meter objects 40, 45, 47, 49, 51, 55, and 58 for the standby image P1 will be described. The user calls the main menu screen 81 shown in FIG. 16(a) from the display unit 14, which is a GUI input screen, and touches the "setting" icon 82 on the main menu screen 81 to select the lower hierarchy. A setting screen 83 is called (FIG. 17(a)). As a calling method, for example, it is assumed that the main menu screen 81 is displayed when continuous finger contact for a predetermined time (for example, 5 seconds) is detected at an arbitrary position on an arbitrary screen. be done. Here, the user touches the "OBD detailed setting" icon 84 on the display unit 14 to set three types of meters, that is, a multimeter. Then, a setting screen 85 for OBD detailed settings as shown in FIG. 17(b) is displayed, and an icon 86 for "multimeter selection" is selected and touched.
A "select multimeter" screen 87 as shown in FIG. 17(c) is displayed. On this screen 87, the icons A to C are arranged in the same order as they are actually arranged in the standby image P1, and the correspondence relationship of the vehicle driving information is set at the positions corresponding to the icons A to C. This is a specific selection screen on which arbitrary driving information can be selected with . When the user touches any one of the icons A to C, a lower layer selection screen 88 of "meter item selection" describing vehicle driving information as shown in FIG. 17(d) is displayed. If any item is selected here, the screen automatically returns to "select multimeter" in FIG. 17(b). As shown in FIG. 17(d), in order to make the user understand that the icons A to C for which the selection has been completed have already been selected, notification of completion of selection, such as by changing the color, is performed. At this time, the character information of the selected meter item may be displayed on the selected icon. By repeating the operations in FIGS. 17(c) and 17(d) and selecting the driving information to be displayed for all the icons A to C, the display unit 14 is put into standby mode by touching the "main image" icon. Return to the main screen where the screen etc. are displayed, and confirm the setting.

Next, a change setting operation for changing the standby screen will be described. In the present embodiment, there are two types: a first standby screen group based on the vehicle driving information acquired independently by the radar detection device 10, and a second standby screen group based on the vehicle driving information acquired from the vehicle diagnostic connector 22. are provided. A map screen group is prepared as a function of the radar detection device 10 .
Here, the second standby screen group includes the first to seventh meter objects 40, 45, 47, 49, 51, 55, 58, the graph object 61, the engine object 65, and the first table object. 71, four types of standby screens displayed by combining the second table object 72 and the standby image P; Here, an operation for selecting a user's desired standby screen from these four types of standby screens will be described.
First, the user touches the "map/standby/OBD" icon 87 from the main menu screen 81 shown in FIG. (Standby) or the second standby screen group (OBD). The icon 87 is a cyclical icon in which the selection targets of the map, standby, and OBD are switched by touching in order. Here, when a certain group is displayed on the screen and is not touched for a predetermined time (for example, 5 seconds), the currently displayed group is determined.
Here, OBD is selected in this embodiment. When OBD is selected, FIG. 12 is displayed as an initial screen. At this time, the three objects displayed are the meter objects selected by the operations shown in FIGS. 17(a) to 17(d). The user can select a desired standby screen by touching the compass icon 74 and appropriately replacing the displays of FIGS. 12 to 15 (FIGS. 18 to 21). The compass icon 74 is an icon in a cyclical format in which the selection targets of the four types of the second standby screen group are switched by touching in order.

With the configuration as described above, the present embodiment has the following effects.
(1) In addition to the meter installed in the vehicle, three types of driving information as important information for driving are displayed as meter objects on the standby screen of the display unit 14, so that the vehicle condition can be judged more accurately. It becomes possible to go to In addition, since the shape is displayed in the form of a meter, it gives the impression that a new meter has been added to the meter that is purely installed in the vehicle, and car enthusiasts will enjoy driving while looking at these meters. .
(2) The three types of driving information can be selected from 11 types (12 types in total for this and the trip meter), and can be freely combined according to the user's wishes to arbitrarily display the necessary driving information. It is possible to obtain the most suitable information according to the driving situation. Also, since there are more than 1000 kinds of combination patterns, it is fun to select and combine them.
(3) One type can be selected from a plurality of standby screens (four types in the embodiment) that are specialized for driving information, and one type can select three types of meter objects from 11 types by "multimeter selection". Since this is a double selection pattern, there is a wide range of choices for standby screens for driving information, so you won't get bored with just one model.
(4) The first to seventh meter objects 40, 45, 47, 49, 51, 55, and 58 display not only visual fluctuations but also numerical values of the current state. Users can get more accurate information.
(5) Since all three types of meter objects displayed on the standby screen are displayed in the same size, the design is unified and easy to see.
(5) At the bottom of each of the three types of meter objects displayed on the standby screen, the type of information displayed by each meter object is displayed in Japanese, so you can instantly tell what kind of meter object it is. I can understand.
(6) When a warning display is displayed in a telop format in the wireless character warning space 79, the warning display appears only in the wireless character warning display space 79 and does not interfere with the variable display of objects, so always obtain driving information. is possible.
(7) When the graph object 61 that graphs the correlation between the vehicle speed and the engine speed is displayed on the standby screen, the user can obtain the correlation in real time as a history, which is generally not obtained as driving information. It is very useful as driving information.
(8) When the graph object 61 is displayed on the standby screen, the history is appropriately erased from the past, and only a certain past history is viewed. Despite being a screen, it is very easy to see.
(9) When the graph object 61 is displayed on the standby screen, the current position of the vehicle can be grasped as the position plotted at the intersection point P of the current position indication lines 62a and 62b, so the current position is very easy to understand. At the same time, the numerical values of the vehicle speed and the number of engine revolutions are displayed by moving along with the indication lines 62a and 62b, so that it is easy to grasp the accurate numerical values.
(10) The engine object 65 for variably displaying changes in both the engine speed and the engine load factor does not need to prepare a plurality of objects. Compared to the case where each variable object is displayed separately on the screen, it can be displayed in a relatively large size, and even on a small screen, it is advantageous because multiple variations can be developed at the same time with one variable object. . In addition, both the engine speed and the engine load factor can be simultaneously obtained as operating information, which is extremely useful. In particular, because it is an object that imitates the inside of an impressive engine, it can give a very strong impression to those who see it.

The present invention may be embodied and implemented as follows.
- In the above-described embodiment, the "multimeter selection" selects objects corresponding to three types of driving information.
・In the above embodiment, the external size of the three types of objects displayed on the standby screen by "multimeter selection" was the same for each meter object, but for example, only the main meter object can be displayed larger.
・In the above embodiment, the object was selected from objects corresponding to 12 types of driving information by "multimeter selection", but in addition to these, driving information that can be acquired only by GPS positioning, for example, can be selected. , the driving information obtained from other than the vehicle diagnostic connector 22 may be selected. Conversely, it may be possible to select only from the meter object. Further, as the driving information, driving information other than the driving information mentioned in the above embodiments may be adopted.
- In the above-described embodiment, four types of standby screens are created using the standby image P1, but it is also possible to freely create standby screens other than these four types.
・In the above embodiment, the graph object 61 and the engine object 65 are not combined with multiple meter objects as shown in FIG. A plurality of variable display portions may be displayed simultaneously instead of other meter objects.
However, if the graph object 61 is displayed alone on the standby screen, it is fine, but if it is selected as one of the three types by "multimeter selection", it becomes considerably smaller. Therefore, it is more preferable to display only a narrow area including the current point instead of the entire graph object 61 when selected by "multimeter selection".
In the above embodiment, the graph object 61 has the speed on the vertical axis and the number of engine revolutions on the horizontal axis, but it is not limited to this. The vertical axis may be the fuel flow rate and the horizontal axis may be the operating time, or the vertical axis may be the engine load factor and the horizontal axis is the engine speed.
The intersection position P of the current position indication lines 62a and 62b is used as a method of expressing the current position on the graph object 61. However, for example, the current position can be changed in color with the past history light spot, or the number of pixels can be changed. You may make it show by other methods, such as increasing and expressing large.
- In the above embodiment, the vehicle speed and the engine speed obtained every second are plotted on the graph object 61, but other timings may be used. However, it is preferable to set the time interval at which the change in the driving information can be accurately visually recognized.
・In the above embodiment, 500 points or more of the history on the graph object 61 are erased from the past, but it can be freely changed according to the size of the screen and the number of pixels occupied by one light spot. .
・Regarding the history on the graph object 61, instead of limiting the number of points existing at the same time as described above, the past history can be obtained by limiting the existence time of one point on the screen (for example, about 5 to 10 minutes). You may make it erase.
In the above-described embodiment, the driving situation in the graph object 61 is scaled up in two steps, but it may be scaled up or scaled down in multiple steps. Such a stepwise scale-up or scale-down is preferable because the scale does not change frequently and is easy to see, but a stepless scale-up or scale-down display is also possible.
・ The history in the above graph object 61 is shown as an example for a vehicle with a transmission mechanism, regardless of whether it is a manual or AT vehicle. It is possible to similarly acquire the history of a vehicle equipped with such a transmission.
- In the above embodiment, the color of the piston object 67 of the engine object 65 is changed to express the engine load factor, but the color of portions other than the piston object 67 may be changed.
・In the engine object 65 of the above embodiment, the piston object 67 and the impeller object 70 represent changes in the engine speed. It may also be applied to changes in speed of reciprocating motion of an object, or changes in rotational degrees of cams, camshafts, and tires.
- It is free to carry out the present invention in a modified form without departing from the scope of the invention.

10 Fuel efficiency display device as an electronic system, 14 Display unit constituting a screen, 40, 45, 47, 49, 51, 55, 58 First to seventh meter objects as a variable display unit 61 Variable display A graph object as a unit, 65... an engine object as a variable display unit, MC... a controller as a control means.

Claims (4)

A function that sequentially acquires numerical values of information acquired in the vehicle, displays a line at a position corresponding to the numerical value of the latest information acquired, and displays the numerical value of the latest information so as to follow the movement of the line. have a system. 2. The function according to claim 1, wherein the sequentially acquired numerical values are plotted on a graph, and the line is displayed on the graph so as to pass through the position of the plot indicating the numerical value of the latest information. system. The function changes the scale of the graph so as to widen or narrow the range of numerical values displayed on the graph based on changes in numerical values of information acquired in the past, and plots the numerical values of the latest information. 3. The system of claim 2, wherein the line is moved to pass through the position of A program for causing a computer to implement the functions of the system according to any one of claims 1 to 3.

Images