WO2015068269A1

WO2015068269A1 - Display device

Info

Publication number: WO2015068269A1
Application number: PCT/JP2013/080275
Authority: WO
Inventors: 松原　勉; 卓矢河野; 武史三井; 水口　武尚; 星原　靖憲
Original assignee: 三菱電機株式会社
Priority date: 2013-11-08
Filing date: 2013-11-08
Publication date: 2015-05-14

Abstract

　A display device is provided with: a data acquisition unit (2) for acquiring vehicle state data, vehicle environment data, and travel mode data set in the vehicle; a controller (3) for generating an analog instrument image indicating the vehicle state and dynamically varying scale intervals of the analog instrument image in accordance with at least one vehicle state recommended with the vehicle state data, vehicle environment data, and travel mode data acquired by the data acquisition unit (2); and an image-producing processor (4) for producing the analog instrument image and displaying the image on a display unit (5).

Description

Display device

The present invention relates to a display device that displays an analog instrument image indicating a state of a moving body such as a vehicle on a display unit.

For example, Patent Document 1 discloses a vehicle display device called a head-up display (hereinafter referred to as HUD) that includes a combiner on a windshield of an automobile and displays a display virtual image toward the driver. In this HUD, the optical information emitted from the liquid crystal display device is projected on a combiner consisting of a hologram or a half mirror incorporated in the windshield, so that the driver can read the information from the driving state with little movement of the line of sight. Can do.

When driving the vehicle, the driver focuses the eyes farther as the vehicle speed increases and closer to the eyes as the vehicle speed decreases.
Therefore, in the HUD described in Patent Document 1, the liquid crystal display device is moved away from the combiner as the vehicle speed becomes faster, and closer to the combiner as the vehicle speed becomes slower. The image forming position of the display virtual image is made far, and the image forming position of the display virtual image from the driver is made closer as the vehicle speed decreases.
Thereby, the difference between the imaging position of the display virtual image corresponding to the vehicle speed and the focus position of the driver's eyes is reduced, and the visibility of the situation outside the vehicle and the display contents is improved.

Patent Document 2 discloses a vehicle meter unit that displays an image of instruments indicating the vehicle speed and engine speed of the vehicle. This vehicle meter unit displays an analog instrument that indicates an analog speed in the same manner as a conventional turntable, and changes the display form of the digital instrument that indicates the indicated value in conjunction with the analog instrument.
In particular, the vehicle meter unit of Patent Document 2 changes at least one of the size and shape of a numeric image indicating the speed instruction value of the digital instrument in accordance with the increase or decrease of the speed of the vehicle.
For example, the dimension is changed so that the numerical image indicated by the digital instrument becomes larger as the speed instruction value becomes larger. This makes it easier for the driver to notice an increase in vehicle speed.

Furthermore, in Patent Document 3, the display image of the display device arranged on the dashboard is reflected by the reflection surface above the dashboard, so that the display image is superimposed on the outside scenery through the windshield and displayed. HUD is disclosed. In this HUD, the image forming position of the display device can be changed by moving the display device in parallel with the upper surface of the dashboard according to the speed of the vehicle, and the display image can be displayed at an optimum position for the driver.

Japanese Utility Model Publication No. 6-87043 JP 2009-103540 A Japanese Utility Model Publication No. 1-123731

The conventional techniques represented by Patent Documents 1 to 3 have a problem that the visibility of analog instruments is not improved and the indicated value cannot be recognized quickly.
For example, Patent Document 1 makes it easier for the driver to see the instrument image by reducing the difference between the image formation position of the display virtual image corresponding to the vehicle speed and the focus position of the driver's eyes.
However, in Patent Document 1, since an analog instrument is not considered, there is a possibility that the indicated value cannot be recognized quickly depending on the display mode of the analog instrument.

Also, in Patent Document 2, only the portion for digitally displaying the indicated value of the instrument according to the speed of the vehicle is emphasized, and the display mode of the analog instrument is not changed. For this reason, when the vehicle is traveling at a low speed, the digitally displayed numerical image of the indicated value is easily confused with the numerical image of the analog instrument other than the pointer position, which may confuse the driver.

Furthermore, in patent document 3, the position of the display image which is reflected on the windshield is displaced according to the vehicle speed by moving the display device according to the vehicle speed.
However, even in Patent Document 3, an analog instrument is not taken into consideration. Therefore, even if the analog instrument is displayed at a position that is easy to see from the driver, the indication value may not be recognized quickly depending on the display mode of the analog instrument. is there.

The present invention has been made to solve the above-described problems, and an object thereof is to obtain a display device capable of improving the visibility of an analog instrument image.

A display device according to the present invention is a display device that displays an analog instrument image instructing the state of a moving body on a display unit, and displays the state of the moving body, the surrounding situation of the moving body, and the movement mode set for the moving body. A data acquisition unit to acquire and an analog instrument image that indicates the state of the moving body are generated, and at least of the state of the moving body acquired by the data acquisition unit, the surrounding situation of the moving body, and the state of the moving body recommended in the moving mode A control unit that dynamically changes the scale interval of the analog instrument image according to one and a drawing processing unit that draws the analog instrument image and displays it on the display unit are provided.

According to the present invention, there is an effect that the visibility of the analog instrument image can be improved.

It is a block diagram which shows the structure of the display apparatus which concerns on Embodiment 1 of this invention. 4 is a flowchart illustrating an operation example of the display device according to the first embodiment. It is a figure which shows an example of drawing data. 6 is a diagram showing a display example of a speedometer in the first embodiment. FIG. It is a flowchart which shows the operation example of the display apparatus which concerns on Embodiment 2 which concerns on this invention. FIG. 10 is a diagram showing a display example of a speedometer in the second embodiment. It is a flowchart which shows operation | movement of the display apparatus which concerns on Embodiment 3 of this invention. FIG. 10 is a diagram showing a display example of a speedometer in the third embodiment. It is a flowchart which shows operation | movement of the display apparatus which concerns on Embodiment 4 of this invention. FIG. 10 is a diagram showing a display example of a speedometer in the fourth embodiment. It is a flowchart which shows operation | movement (eco mode) of the display apparatus which concerns on Embodiment 5 of this invention. 10 is a flowchart showing an operation (sport mode) of the display device according to the fifth embodiment. It is a flowchart which shows operation | movement of the display apparatus which concerns on Embodiment 6 of this invention. FIG. 18 shows a display example of a speedometer in the sixth embodiment. It is a flowchart which shows operation | movement of the display apparatus which concerns on Embodiment 7 of this invention. FIG. 38 shows a display example of a speedometer in the seventh embodiment. It is a flowchart which shows operation | movement of the display apparatus which concerns on Embodiment 8 of this invention. FIG. 20 shows a display example of a speedometer in the eighth embodiment. It is a flowchart which shows operation | movement (vehicle speed change) of the display apparatus which concerns on Embodiment 9 of this invention. It is a figure which shows the example of a display (vehicle speed change) of the speedometer in Embodiment 9. FIG. 25 is a flowchart showing an operation (acceleration / deceleration change) of the display device according to the ninth embodiment. It is a figure which shows the example of a display (acceleration / deceleration change) of the speedometer in Embodiment 9. FIG.

Hereinafter, in order to describe the present invention in more detail, modes for carrying out the present invention will be described with reference to the accompanying drawings.
Embodiment 1 FIG.
FIG. 1 is a block diagram showing a configuration of a display device according to Embodiment 1 of the present invention. As shown in FIG. 1, the display device 1 is a display device that displays an analog instrument image that indicates the state of a moving object (for example, a vehicle) on the display unit 5, and includes a data acquisition unit 2, a control unit 3, and a drawing process. The unit 4 is provided. The display unit 5 may be provided integrally with the housing of the display device 1 or may be provided separately.

The data acquisition unit 2 is a data acquisition unit that acquires vehicle state data, vehicle environment data, and travel mode data.
For example, the vehicle speed, the remaining fuel amount, the engine speed, etc., which are instructed by various instruments from the ECU (electronic control unit; not shown) of the host vehicle, are acquired as vehicle state data.
In addition, the speed limit (maximum speed limit or minimum speed limit) of the road on which the vehicle is traveling, obtained by analyzing the image of the surroundings of the vehicle (speed limit signboard, etc.) captured by the in-vehicle camera is used as environmental data. get.
Furthermore, the driving mode data set for the host vehicle by the user is acquired from the ECU. The travel mode data is data that specifies a travel state recommended for the host vehicle.
For example, in the eco mode, a speed range that saves fuel on the road on which the vehicle is traveling is recommended. Further, in the case of the sport mode, since a high speed traveling of the vehicle is assumed, a high speed range is recommended.

The control part 3 produces | generates the analog instrument image which instruct | indicates a vehicle state using vehicle state data and drawing data. In addition, the control unit 3 controls the display mode of the analog instrument image according to at least one of the vehicle state recommended by the vehicle state data acquired by the data acquisition unit 2, the vehicle environment data, and the travel mode data. Change.
The drawing processing unit 4 draws an analog instrument image instructed to be drawn from the control unit 3 and displays it on the screen 5 a of the display unit 5.

The display unit 5 is a display monitor that is built in, for example, an instrument panel of a vehicle and displays an instrument image indicating a vehicle state (speed information, fuel information, engine speed, etc.) on the screen 5a. The display unit 5 can be realized by a liquid crystal display panel, a plasma display panel, an organic EL panel, or the like.

The data acquisition unit 2, the control unit 3, and the drawing processing unit 4 are realized as specific means in which hardware and software cooperate by causing the microcomputer to execute a program relating to processing unique to the present invention. The

Next, the operation will be described.
FIG. 2 is a flowchart illustrating an operation example of the display device according to the first embodiment. Hereinafter, a case where an analog speedometer image of the vehicle is displayed on the display unit 5 will be described.
First, the control unit 3 reads and obtains drawing data from a memory (not shown) (step ST1). Subsequently, the control unit 3 generates a base image of the analog instrument based on the drawing data, and instructs the drawing processing unit 4 to perform drawing (step ST2).
The drawing processing unit 4 draws a base image of an analog speedometer without a scale as shown in FIG. 3 in accordance with an instruction from the control unit 3 and displays it on the screen 5 a of the display unit 5.

Next, the control unit 3 generates a normal scale image of the analog speedometer image using the scale image data read from the memory, and instructs the drawing processing unit 4 to perform drawing (step ST3). In accordance with an instruction from the control unit 3, the drawing processing unit 4 draws an analog speedometer image with a normal scale and displays it on the screen 5 a of the display unit 5.

While the display unit 5 displays the analog speedometer image, the control unit 3 sequentially inputs the current vehicle speed Vc (km / h) acquired by the data acquisition unit 2 (step ST4).
The control unit 3 determines the position of the pointer based on the vehicle speed Vc input from the data acquisition unit 2 (step ST5), generates a pointer image using the pointer image data read from the memory, and performs a drawing processing unit. 4 is instructed to draw a pointer (step ST6).
In accordance with an instruction from the control unit 3, the drawing processing unit 4 draws an analog speedometer image indicating the current vehicle speed Vc at a normal interval and displays it on the screen 5 a of the display unit 5.

Subsequently, the control unit 3 dynamically changes the scale interval in the analog speedometer image according to the current vehicle speed Vc. Here, the speed range including the current vehicle speed Vc is calculated as a fine scale interval drawing range (step ST7). At this time, every time the current vehicle speed Vc is input, the control unit 3 calculates the upper limit speed V _high of the speed range as Vc + Vx and the lower limit speed V _low as Vc−Vx (step ST7-1). Next, the control unit 3 determines a speed range of ± Vx with the current vehicle speed Vc as a center value as a range to be drawn at fine scale intervals, and a speed from 0 (km / h) to less than V _low (km / h). A speed range exceeding the range and V _high is determined as a range for drawing at a normal scale interval (step ST7-2). Note that Vx is set to a value that is easy for the driver to visually recognize the speed change around the vehicle speed Vc, which is the speed near the current vehicle speed Vc.

Next, the control unit 3 generates a scale image with a fine speed range calculated as described above and a scale image with a normal speed range, and instructs the drawing processing unit 4 to draw the scale (step ST8). ). In accordance with an instruction from the control unit 3, the drawing processing unit 4 draws a speed range centered on the current vehicle speed Vc in the speed range of the current analog speedometer image at fine scale intervals, and displays the screen of the display unit 5. 5a is displayed. As a result, an analog speedometer image as shown in FIG. 4 is displayed on the screen 5a of the display unit 5 in accordance with a speed change caused by driving the vehicle. In this analog speedometer image, the speed range A centered on the current vehicle speed Vc becomes a fine scale interval, and the visibility is improved. For this reason, the driver can easily identify the location where the pointer indicates the current vehicle speed Vc, and can easily recognize the speed near the vehicle speed Vc intuitively, and can recognize the detailed speed change at the speed near the vehicle speed Vc. It becomes easy.

In the above description, an analog speedometer image is displayed. However, the same effect can be obtained when applied to analog instrument images indicating other vehicle states. For example, in a fuel meter or tachometer, a range centered on the current remaining fuel amount or engine speed may be displayed at fine scale intervals.

As described above, according to the first embodiment, the data acquisition unit 2 that acquires the vehicle state data, the environment data of the vehicle, and the travel mode data set in the vehicle, and the analog instrument image that indicates the state of the vehicle A control unit 3 that dynamically changes the scale interval of the analog instrument image according to at least one of the vehicle states recommended by the vehicle state data, the vehicle environment data, and the travel mode data that are generated and acquired by the data acquisition unit 2 And a drawing processing unit 4 for drawing an analog instrument image and displaying it on the display unit 5. In particular, the control unit 3 changes the scale interval within the range including the instruction value of the current state of the vehicle more finely than outside the range. By comprising in this way, the scale interval can change dynamically and the visibility of an analog instrument image can be improved.

Further, according to the first embodiment, the range including the indication value of the current state of the vehicle is a range having the indication value of the current speed of the host vehicle as the central value. By comprising in this way, the range centering on the instruction value which shows the present vehicle state becomes a fine scale space | interval, and the visibility improves. For this reason, it is easy for the driver to quickly identify the location indicated by the pointer, to easily recognize the current vehicle state intuitively, and to recognize detailed state changes in the vicinity of the current vehicle state.

Embodiment 2. FIG.
The display device according to the second embodiment is different from the first embodiment in the range of changing the scale interval in the analog instrument image, but the basic configuration is the same as the first embodiment. Therefore, in the following description, FIG. 1 is referred to for the configuration of the second embodiment.

Next, the operation will be described.
FIG. 5 is a flowchart showing an operation example of the display device according to the second embodiment, in which step ST7 of FIG. 2 shown in the first embodiment is changed to step ST7a.
Therefore, the process of step ST7a will be mainly described, and hereinafter, a case where an analog speedometer image is displayed on the display unit 5 will be described.

The control unit 3 dynamically changes the scale interval in the analog speedometer image according to the current vehicle speed Vc. Here, the speed range including the current vehicle speed Vc is calculated as a fine scale interval drawing range (step ST7a). At this time, every time the current vehicle speed Vc is input, the control unit 3 sequentially calculates Vc1 obtained by rounding off the 1's place of the vehicle speed Vc (step ST7a-1).

Next, the control unit 3 calculates the upper limit speed V _high of the speed range as Vc1 + Vx and the lower limit speed V _low as Vc1-Vx (step ST7a-2).
After that, the control unit 3 determines a speed range of ± Vx with Vc1 as the center value as a range to be drawn with fine scale intervals, and a speed range from 0 (km / h) to less than V _low (km / h) A speed range exceeding V _high is determined as a range for drawing at a normal scale interval (step ST7a-3). Note that Vx is set to a value that is close to the current vehicle speed Vc and allows the driver to easily see the change in the vehicle speed Vc.

Next, the control unit 3 generates a scale image with a fine speed range calculated as described above and a scale image with a normal speed range, and instructs the drawing processing unit 4 to draw the scale (step ST8). ). In accordance with an instruction from the control unit 3, the drawing processing unit 4 draws a speed range including the current vehicle speed Vc in the speed range of the current analog speedometer image at fine scale intervals and displays it on the screen 5 a of the display unit 5. To do. Thus, an analog speedometer image as shown in FIG. 6 is displayed on the screen 5a of the display unit 5 in accordance with the speed change caused by driving the vehicle.

In this analog speedometer image, the speed range B including the current vehicle speed Vc becomes a fine scale interval, and the visibility is improved. Therefore, as in the first embodiment, it is easy for the driver to quickly identify the location where the pointer indicates the current vehicle speed Vc, and to easily intuitively recognize the speed near the vehicle speed Vc, and the speed near the vehicle speed Vc. It becomes easy to recognize the detailed speed change in.

The speed range B varies discretely in increments of 10 (km / h). For example, if Vx is 10 (km / h), the speed width of the speed range B is 2Vx = 20 (km / h).
Here, when the current vehicle speed Vc is 37 (km / h), Vc1 obtained by rounding off the first place of the vehicle speed Vc is 40c, and the speed range B displayed at a fine scale interval is from 30 (km / h) to 50. The speed range is up to (km / h).

On the other hand, when the current vehicle speed Vc increases to 45 (km / h), Vc1 becomes 50 (km / h), and the speed range B displayed with fine scale intervals is 40 (km / h) to 60 (km / h). ) Speed range. Further, when the current vehicle speed Vc is reduced to 34 (km / h), Vc1 is 30 (km / h), and the speed range B displayed with fine scale intervals is 20 (km / h) to 40 (km / h). ) Speed range.

In the first embodiment, even if the vehicle speed is slight, the speed range displayed at fine scale intervals continuously (frequently) fluctuates, and the driver may feel annoyed.
On the other hand, in the second embodiment, if the driver drives the vehicle in a constant speed range, the speed range displayed at fine scale intervals is fixed. As a result, as in the first embodiment, the scale interval can be dynamically changed to improve the visibility of the analog instrument image, and the speed around the current vehicle speed Vc can fluctuate excessively. Can be prevented.

In addition, a speed range to be displayed with fine scale intervals such as 0 to 20 (km / h), 20 to 40 (km / h), and 40 to 60 (km / h) is set in advance, and these speed ranges are set. When the current vehicle speed Vc is included, the normal scale interval may be changed to a fine scale interval. In this way, the same effect as described above can be obtained.

In the above description, an analog speedometer image is displayed. However, the same effect can be obtained when applied to analog instrument images indicating other vehicle states. For example, in a fuel meter or tachometer, a range including the current remaining fuel amount and engine speed may be displayed at fine scale intervals, and this range may be discretely varied according to the current instruction value.

As described above, according to the second embodiment, the control unit 3 discretely varies the range including the instruction value according to the instruction value of the current vehicle state.
In the first embodiment, even if there is a slight change in the vehicle state, the range displayed at fine scale intervals changes continuously (frequently), so the driver may feel annoyance.
On the other hand, in the second embodiment, if the driver drives the vehicle in a constant vehicle state, the range displayed at fine scale intervals is fixed. Accordingly, as in the first embodiment, the scale interval can be dynamically changed to improve the visibility of the analog instrument image, and the range including the indication value of the current state of the vehicle is excessively fluctuated. Can be prevented.

Embodiment 3 FIG.
The display device according to the third embodiment is different from the first embodiment in the range in which the scale interval in the analog instrument image is changed, but the basic configuration is the same as the first embodiment. Therefore, in the following description, FIG. 1 is referred to for the configuration of the third embodiment.

Next, the operation will be described.
FIG. 7 is a flowchart showing an operation example of the display device according to the third embodiment, in which step ST7 of FIG. 2 shown in the first embodiment is changed to step ST7b.
Therefore, the process of step ST7b will be mainly described, and hereinafter, a case where an analog speedometer image is displayed on the display unit 5 will be described.

The control unit 3 dynamically changes the scale interval in the analog speedometer image according to the environmental data acquired by the data acquisition unit 2 (step ST7b). Here, the control unit 3 inputs from the data acquisition unit 2 the maximum speed limit and the minimum speed limit of the speed limit of the road on which the host vehicle is currently traveling as environment data.

Next, the control unit 3 determines the upper limit speed V _high of the speed range as the maximum speed limit and determines the lower limit speed V _low as the minimum speed limit (step ST7b-1). Thereafter, the control unit 3 determines a speed range from V _low (km / h) to V _high (km / h) as a range to be drawn at fine scale intervals, and from 0 (km / h) to V _low (km / H) and a speed range exceeding V _high are determined as a range for drawing at a normal scale interval (step ST7b-2).

Next, the control unit 3 generates a scale image with a fine speed range calculated as described above and a scale image with a normal speed range, and instructs the drawing processing unit 4 to draw the scale (step ST8). ). In accordance with an instruction from the control unit 3, the drawing processing unit 4 selects a speed range from V _low (km / h) to V _high (km / h) from the current analog speedometer image at fine scale intervals. Draw and display on the screen 5 a of the display unit 5.

For example, when the maximum speed limit is 100 (km / h) and the minimum speed limit is 50 (km / h), an analog speedometer image as shown in FIG. 8 is displayed on the screen 5a of the display unit 5. .
In this analog speedometer image, the speed limit range (legal speed range) C of the road on which the vehicle is currently traveling becomes a fine scale interval, and the visibility is improved.
Further, every time the speed limit range of the road on which the vehicle travels changes, the speed range C displayed at fine scale intervals is dynamically changed. For this reason, the driver can easily recognize that the speed limit range of the road on which the vehicle is traveling has changed.

In addition, as shown in FIG. 8, the drawing processing unit 4 may display the difference between the current vehicle speed Vc calculated by the control unit 3 and the speed limit range on the screen 5a. By doing so, the driver can quickly recognize the difference between the current vehicle speed Vc and the speed limit range, and can support driving in accordance with the speed limit.

As described above, according to the third embodiment, the control unit 3 sets the scale interval in the speed range C from the lowest speed limit to the highest speed limit of the road on which the vehicle is traveling. Change more finely than out of range. With this configuration, the speed range C displayed at fine scale intervals changes every time the speed limit range of the road on which the vehicle travels changes, so the driver can limit the speed limit of the road on which the vehicle travels. It can be easily recognized that the range has changed.

Embodiment 4 FIG.
The display device according to the fourth embodiment is different from the first embodiment in the range in which the scale interval in the analog instrument image is changed, but the basic configuration is the same as the first embodiment. Therefore, in the following description, FIG. 1 is referred to for the configuration of the fourth embodiment.

Next, the operation will be described.
FIG. 9 is a flowchart showing an operation example of the display device according to the fourth embodiment, in which step ST7 of FIG. 2 shown in the first embodiment is changed to step ST7c.
Therefore, the process of step ST7c will be mainly described, and the case where an analog speedometer image is displayed on the display unit 5 will be described below.

The control unit 3 dynamically changes the scale interval in the analog speedometer image according to the vehicle state data and the environment data acquired by the data acquisition unit 2 (step ST7c).
Here, the control unit 3 uses the relative speed VRf between the vehicle preceding the same lane as the host vehicle (hereinafter referred to as the preceding vehicle) and the host vehicle as environmental data, and the subsequent lane on the same lane as the host vehicle. The relative speed VRb between the vehicle to be operated (hereinafter referred to as the following vehicle) and the host vehicle is input from the data acquisition unit 2 (step ST7c-1). The relative speed is a speed difference between the own vehicle, the preceding vehicle, and the succeeding vehicle in which the traveling direction of the own vehicle is a plus direction.

Next, the control unit 3 determines whether or not the relative speed VRf between the host vehicle and the preceding vehicle is less than a predetermined speed threshold value Vx (step ST7c-2). When the relative speed VRf is equal to or higher than the speed threshold Vx (step ST7c-2; NO), the control unit 3 determines the upper limit speed V _high of the speed range to be drawn at fine scale intervals as V _max (step ST7c-3). .
V _max is the maximum speed limit of the analog speedometer or the maximum speed limit of the road on which the vehicle is currently traveling.

When the relative speed VRf is less than the speed threshold value Vx (step ST7c-2; YES), the control unit 3 adds the upper limit speed V _high of the speed range to be drawn at fine scale intervals and the relative speed VRf to the current vehicle speed Vc. The determined value is determined (step ST7c-4).
Next, the control unit 3 determines whether or not the relative speed VRb between the host vehicle and the following vehicle exceeds a predetermined speed threshold value Vy (step ST7c-5). When the relative speed VRb is equal to or less than the speed threshold value Vy (step ST7c-5; NO), the control unit 3 determines the lower limit speed V _low of the speed range to be drawn at fine scale intervals to 0 (step ST7c-6).

When the relative speed VRb exceeds the speed threshold value Vy (step ST7c-5; YES), the control unit 3 sets the lower limit speed V _low of the speed range to be displayed at fine scale intervals, and sets the relative speed VRb to the current vehicle speed Vc. The added value is determined (step ST7c-7).
Next, the control unit 3 confirms whether or not the lower limit speed V _low is less than the upper limit speed V _high (step ST7c-8). When the lower limit speed V _low becomes equal to or higher than the upper limit speed V _high (step ST7c-8; NO), the control unit 3 determines that there is no speed range for drawing with fine scale intervals (step ST7c-9).

When the lower limit speed V _low is less than the upper limit speed V _high (step ST7c-8; YES), the control unit 3 sets a speed range between V _low (km / h) and V _high (km / h) to a fine scale interval. The speed range between 0 (km / h) and less than V _low (km / h) and the speed range exceeding V _high are determined as the ranges to be drawn at normal scale intervals (step ST7c-10). ).

Next, the control unit 3 generates a scale image having a fine speed range determined as described above and a scale image having a normal speed range, and instructs the drawing processing unit 4 to draw the scale (step ST8). ). In accordance with an instruction from the control unit 3, the drawing processing unit 4 selects a speed range from V _low (km / h) to V _high (km / h) from the current analog speedometer image at fine scale intervals. Draw and display on the screen 5 a of the display unit 5.
For example, when the current vehicle speed Vc is 30 (km / h), the maximum speed limit is 60 (km / h), and the following vehicle is approaching the host vehicle at 35 (km / h), as shown in FIG. An analog speedometer image is displayed on the screen 5 a of the display unit 5.

As described above, according to the fourth embodiment, the control unit 3 is within a speed range in which there is no possibility of a collision with another vehicle from the relative speeds VRf and VRb with the other vehicle preceding or following the vehicle. The scale interval is changed more finely than outside this speed range. By comprising in this way, the speed range D of the own vehicle which does not have the possibility of a collision with a following vehicle becomes a fine scale space | interval, and the visibility improves. For this reason, the driver can easily recognize a speed range in which there is no possibility of a collision with another vehicle.

Embodiment 5 FIG.
The display device according to the fifth embodiment is different from the first embodiment in the range of changing the scale interval in the analog instrument image, but the basic configuration is the same as the first embodiment. Therefore, in the following description, FIG. 1 is referred to for the configuration of the fifth embodiment.

Next, the operation will be described.
FIG. 11 is a flowchart showing an operation example of the display device according to the fifth embodiment, in which step ST7 of FIG. 2 shown in the first embodiment is changed to step ST7d.
Therefore, the process of step ST7d will be mainly described, and the case where an analog speedometer image is displayed on the display unit 5 will be described below.

The control unit 3 dynamically changes the scale interval in the analog speedometer image according to the travel mode data acquired by the data acquisition unit 2 (step ST7d).
Here, the control unit 3 inputs a recommended speed Va with good fuel efficiency recommended for the host vehicle in the eco mode from the data acquisition unit 2 as travel mode data.

Next, the control unit 3 determines the upper limit speed V _high of the speed range to be drawn at fine scale intervals as Va + Vx and the lower limit speed V _low as Va−Vx (step ST7d-1). Thereafter, the control unit 3 determines a speed range from V _low (km / h) to V _high (km / h) as a range to be drawn at fine scale intervals, and from 0 (km / h) to V _low (km / H) and a speed range exceeding V _high are determined to be drawn ranges at normal scale intervals (step ST7d-2). Note that Vx is set to a value that allows the driver to easily recognize a speed near the recommended speed.

Next, the control unit 3 generates a scale image with a fine speed range calculated as described above and a scale image with a normal speed range, and instructs the drawing processing unit 4 to draw the scale (step ST8). ). The drawing processing unit 4 draws a speed range of V _low (km / h) or more and V _high (km / h) or less at a fine scale interval in the speed range of the current analog speedometer image according to an instruction from the control unit 3. And displayed on the screen 5a of the display unit 5.

Also, if the sports mode to the own vehicle is set, the control unit 3, the maximum speed limit V _max speed limit for the road on which the vehicle is currently traveling as environment data is input from the data acquisition unit 2. Next, as shown in FIG. 12, the control unit 3 determines the upper limit speed V _high of the speed range to be drawn at fine scale intervals as V _max and the lower limit speed V _low as Vmax−Vx (step ST7e− 1). Thereafter, the control unit 3 determines a speed range from V _low (km / h) to V _high (km / h) as a range to be drawn at fine scale intervals, and from 0 (km / h) to V _low (km / H) and a speed range exceeding V _high are determined as a range for drawing at a normal scale interval (step ST7e-2).

As described above, according to the fifth embodiment, the control unit 3 changes the scale interval within the speed range recommended for the vehicle in the travel mode more finely than outside the speed range. By comprising in this way, the speed range recommended in driving | running | working mode is drawn by a fine scale interval, and visibility improves. As a result, the driver can quickly recognize the speed range recommended in the travel mode.

Embodiment 6 FIG.
The display device according to the sixth embodiment is different from the first embodiment in the content of changing the scale interval in the analog instrument image, but the basic configuration is the same as the first embodiment. Therefore, in the following description, FIG. 1 is referred to for the configuration of the sixth embodiment.

Next, the operation will be described.
FIG. 13 is a flowchart showing an operation example of the display device according to the sixth embodiment, in which step ST7 of FIG. 2 shown in the first embodiment is changed to step ST7f.
Therefore, the process of step ST7f will be mainly described, and the case where an analog speedometer image is displayed on the display unit 5 will be described below.

For example, the control unit 3 dynamically changes the scale interval in the analog speedometer image according to the current vehicle speed Vc. Here, of all the speed ranges of the analog speedometer, a speed range other than the speed range including the current vehicle speed Vc is calculated as a drawing range in which a rough scale interval is drawn or a scale is not drawn (step ST7f). At this time, every time the current vehicle speed Vc is input, the control unit 3 calculates the upper limit speed V _high of the speed range as Vc + Vx and the lower limit speed V _low as Vc−Vx.

Next, the control unit 3 determines a speed range of ± Vx centered on the current vehicle speed Vc as a range to be drawn at a normal scale interval, and is from 0 (km / h) to less than V _low (km / h) A speed range that exceeds the speed range and V _high is determined to be a range in which a scale is drawn at a coarse scale interval or a scale is not drawn. Note that Vx is set to a value that is easy for the driver to visually recognize the speed change around the vehicle speed Vc, which is the speed near the current vehicle speed Vc.

Next, the control unit 3 generates a scale image having a normal speed range and a coarse speed range image calculated as described above, and instructs the drawing processing unit 4 to draw the scale (step ST8). ). In accordance with an instruction from the control unit 3, the drawing processing unit 4 draws a speed range centered on the current vehicle speed Vc in the speed range of the current analog speedometer image at a normal scale interval, and speeds other than this The range is drawn at coarse scale intervals and displayed on the screen 5a of the display unit 5, or scales other than this range are not displayed on the analog speedometer image.

By performing the above processing, an analog speedometer image as shown in FIG. 12 (a) or FIG. 12 (b) is displayed on the screen 5a of the display unit 5 in accordance with the speed change caused by driving the vehicle.
In the analog speedometer image shown in FIG. 12A, the speed range E centered on the current vehicle speed Vc is a normal scale interval, but the scale intervals of speed ranges other than the speed range E are coarser than usual. It has become. Further, in the analog speedometer image shown in FIG. 12B, only the scale of the speed range E is displayed, and the scales of the other speed ranges are not displayed.

In the above description, the speed range E is set to a normal scale interval. However, the scale range other than the speed range E is roughened or the scale is not drawn, and the speed range E is set to the normal range as in the first embodiment. If the scale interval is finer, the visibility of the speed range E is further improved.

As described above, according to the sixth embodiment, the scale interval of the speed range desired to be shown to the driver is felt to be relatively finer than that of the other speed ranges, and as a result, to the driver. The speed range you want to show is highlighted. As a result, the visibility of the speed range E desired to be shown to the driver is improved.

In the above description, scales other than the speed range determined as the speed range to be drawn at fine scale intervals in the first embodiment are shown or not drawn at coarse intervals. The range determined as the speed range for drawing at fine scale intervals up to 5 may be drawn at normal scale intervals, and scales outside this range may be drawn at coarse intervals or scales may not be drawn. In this way, the same effect as described above can be obtained.

Embodiment 7 FIG.
The display device according to the seventh embodiment is different from the first embodiment in that the scale display brightness in the analog instrument image is changed, but the basic configuration is the same as that in the first embodiment. Therefore, in the following description, FIG. 1 is referred to for the configuration of the seventh embodiment.

Next, the operation will be described.
FIG. 15 is a flowchart showing an operation example of the display device according to the seventh embodiment, in which step ST7 of FIG. 2 shown in the first embodiment is changed to step ST7g.
Therefore, the process of step ST7g will be mainly described, and hereinafter, a case where an analog speedometer image is displayed on the display unit 5 will be described.

For example, the control unit 3 dynamically changes the scale interval in the analog speedometer image according to the current vehicle speed Vc. Here, the speed range including the current vehicle speed Vc among all speed ranges of the analog speedometer is calculated as a drawing range for drawing with high scale display brightness (step ST7g). At this time, every time the current vehicle speed Vc is input, the control unit 3 calculates the upper limit speed V _high of the speed range as Vc + Vx and the lower limit speed V _low as Vc−Vx.

Next, the control unit 3 determines a speed range of ± Vx centered on the current vehicle speed Vc as a range to be drawn with high scale display brightness, and is from 0 (km / h) to less than V _low (km / h). A speed range exceeding the speed range and V _high is determined as a range for drawing with low scale display brightness.
Note that Vx is set to a value that is easy for the driver to visually recognize the speed change around the vehicle speed Vc, which is the speed near the current vehicle speed Vc.

Next, the control unit 3 generates a scale image in the speed range of the high display brightness calculated as described above and a scale image in the speed range of the normal display brightness, and instructs the drawing processing unit 4 to draw the scale ( Step ST8). In accordance with an instruction from the control unit 3, the drawing processing unit 4 draws a speed range centered on the current vehicle speed Vc in the speed range of the current analog speedometer image with high scale display brightness, and other speed ranges Is drawn with the normal scale display brightness and displayed on the screen 5a of the display unit 5.

Further, in the above description, the case where the scale display brightness is increased for the speed range drawn at fine scale intervals in the first embodiment has been described, but the range in which the scale display brightness is increased according to the indication value of the current state of the vehicle. May be discretely varied.
Furthermore, the scale in the range determined as the speed range for drawing at fine scale intervals in the second to fifth embodiments may be drawn with high display brightness. In this way, the same effect as described above can be obtained.

Furthermore, although the case where the scale display brightness of the speed range to be shown to the driver is increased is shown, the scale outside this speed range may be drawn with a low display brightness or the scale may not be drawn. For example, as shown in FIG. 16A, the maximum display brightness of the scale is 100%, the minimum display brightness is 40%, the current vehicle speed Vc indicated by the pointer is 40 (km / h), and Vx is 20 ( km / h), the scale display brightness of the speed range of ± Vx including this vehicle speed Vc is drawn at 100%, the speed range exceeding 0 (km / h) and less than 20 (km / h) and 40 The scale display brightness is drawn at 80% in a speed range exceeding (km / h) and less than 60 (km / h). Moreover, the scale display brightness of the speed range exceeding 0 (km / h) and 60 (km / h) and less than 80 (km / h) is drawn at 60%, and the speed range exceeding 80 (km / h) is drawn. The scale display brightness is drawn at 40%. By doing in this way, the visibility of the speed range including the present vehicle speed Vc which wants to show to a driver | operator can be improved.

Further, as shown in FIG. 16B, the scale display brightness of the speed range F from the minimum speed limit 20 (km / h) to the maximum speed limit 80 (km / h) on the road on which the host vehicle is currently traveling. May be drawn at 100%, and other scales may not be drawn. This makes it feel that the scale display brightness of the speed range you want to show to the driver is relatively high compared to the other speed ranges, and as a result, the speed range you want to show to the driver is emphasized. The visibility of the speed range E that the user wants to show is improved.

In the above description, an analog speedometer image is displayed. However, the same effect can be obtained when applied to analog instrument images indicating other vehicle states. For example, in a fuel meter or tachometer, the scale of the current remaining fuel amount or engine speed range may be displayed with high display brightness. Further, a scale other than the range desired to be shown to the driver may be displayed with low display brightness or may not be displayed.

As described above, according to the seventh embodiment, the data acquisition unit 2 that acquires the state of the vehicle, the situation around the vehicle, and the travel mode set for the vehicle, and the analog instrument image that indicates the state of the vehicle are generated. And a controller that dynamically changes the scale display brightness of the analog instrument image according to at least one of the vehicle state acquired by the data acquisition unit 2, the vehicle surroundings, and the vehicle state recommended in the driving mode. 3 and a drawing processing unit 4 for drawing an analog instrument image and displaying it on the display unit 5. In particular, the control unit 3 changes the scale display brightness within the range including the instruction value of the current state of the vehicle to be higher than outside this range. With this configuration, the scale display brightness can be dynamically changed to improve the visibility of the analog instrument image.

Embodiment 8 FIG.
The display device according to the eighth embodiment is different from the first embodiment in that the pointer of the analog instrument image is changed, but the basic configuration is the same as that of the first embodiment. Therefore, in the following description, FIG. 1 is referred to for the configuration of the eighth embodiment.

Next, the operation will be described.
FIG. 17 is a flowchart showing an operation example of the display device according to the eighth embodiment. Step ST7 and step 8 in FIG. 2 shown in the first embodiment are changed to step ST7h and step ST8a.
Therefore, the process of step ST7h and step ST8a will be mainly described, and the case where an analog speedometer image is displayed on the display unit 5 will be described below.

The controller 3 dynamically changes at least one of the thickness, shape, color, color pattern, and behavior of the pointer in the analog speedometer image according to the current vehicle speed Vc (step ST7h).
For example, as shown in FIG. 18A, when the vehicle speed Vc is 0 to 20 (km / h), the control unit 3 corresponds to this speed range in the pointer image data stored in the memory. Thickness pointer image data is selected, and a thick line pointer image is determined as a drawing target (step ST7h).
Next, the control unit 3 generates a thick pointer image and instructs the drawing processing unit 4 to draw the pointer (step ST8a). The drawing processing unit 4 follows the instruction from the control unit 3 as shown by (1) in FIG. 18 (a), and the thick line corresponding to 0 to 20 (km / h) that is the speed range including the current vehicle speed Vc. Are drawn and displayed on the screen 5 a of the display unit 5.

Further, when the vehicle speed Vc is 20 to 60 (km / h), the control unit 3 selects the pointer image data having a thickness corresponding to this speed range from the pointer image data stored in the memory. The middle thick line pointer image is determined as a drawing target (step ST7h).
Next, the control unit 3 generates a middle thick line pointer image and instructs the drawing processing unit 4 to draw the pointer (step ST8a). In accordance with an instruction from the control unit 3, the drawing processing unit 4 corresponds to a speed range including the current vehicle speed Vc of 20 to 60 (km / h) as shown in (2) in FIG. A thick pointer is drawn and displayed on the screen 5a of the display unit 5.

Further, when the vehicle speed Vc is 60 to 100 (km / h), the control unit 3 selects the pointer image data having a thickness corresponding to this speed range from the pointer image data stored in the memory. A thin line pointer image is determined as a drawing target (step ST7h).
Next, the control unit 3 generates a thin line pointer image and instructs the drawing processing unit 4 to draw the pointer (step ST8a). The drawing processing unit 4 follows the instruction from the control unit 3 and, as shown in (3) in FIG. 18A, a thin line corresponding to 60 to 100 (km / h) that is the speed range including the current vehicle speed Vc. Are drawn and displayed on the screen 5 a of the display unit 5.

Further, not only the thickness of the pointer but also the shape of the pointer may be dynamically changed.
For example, as shown in FIG. 18B, when the vehicle speed Vc is 0 to 20 (km / h), the control unit 3 corresponds to this speed range in the pointer image data stored in the memory. The pointer image data having the shape and the thickness is selected, and the pointer image having the bold line shape is determined as a drawing target (step ST7h).
Next, the control unit 3 generates a thick, straight-line pointer image and instructs the drawing processing unit 4 to draw a pointer (step ST8a). The drawing processing unit 4 follows the instruction from the control unit 3 as shown in (1) in FIG. 18 (b) with a thick line corresponding to 0 to 20 (km / h) that is the speed range including the current vehicle speed Vc. Then, a linear pointer is drawn and displayed on the screen 5a of the display unit 5.

In addition, when the vehicle speed Vc is 20 to 60 (km / h), the control unit 3 selects the pointer image data having a shape and thickness corresponding to this speed range from the pointer image data stored in the memory. Then, an arrow-shaped pointer image with a thick line is determined as a drawing target (step ST7h).
Next, the control unit 3 generates an arrow-shaped pointer image with a bold line, and instructs the drawing processing unit 4 to draw a pointer (step ST8a). The drawing processing unit 4 follows the instruction from the control unit 3 as shown in (2) in FIG. 18 (b) with a thick line corresponding to a speed range of 20 to 60 (km / h) including the current vehicle speed Vc. Then, an arrow-shaped pointer is drawn and displayed on the screen 5a of the display unit 5.

Further, when the vehicle speed Vc is 60 to 100 (km / h), the control unit 3 selects the pointer image data having a shape and thickness corresponding to this speed range from the pointer image data stored in the memory. The arrow-shaped pointer image with a thin line is determined as a drawing target (step ST7h).
Next, the control unit 3 generates an arrow-shaped pointer image with a thin line, and instructs the drawing processing unit 4 to draw the pointer (step ST8a). The drawing processing unit 4 follows the instruction from the control unit 3 and, as shown in (3) in FIG. 18B, a thin line corresponding to 60 to 100 (km / h) that is the speed range including the current vehicle speed Vc. Then, an arrow-shaped pointer is drawn and displayed on the screen 5a of the display unit 5.

Further, not only the thickness and shape of the pointer, but also the color of the pointer may be changed dynamically.
For example, 0 to 20 (km / h), 20 to 40 (km / h), 40 to 60 (km / h), 60 to 80 (km / h), 80 to 100 (km / h), 100 (km Colors corresponding to the respective speed ranges are set, and the control unit 3 determines the color of the pointer according to the current vehicle speed Vc and instructs the drawing processing unit 4 to draw.
The correspondence between the speed range and the pointer color is, for example, 0 to 20 (km / h) in the low speed range and 20 to 40 (km / h) in blue, and 40 to 60 (km / h) in the medium speed range. 60 to 80 (km / h) is green, the high speed range is 80 to 100 (km / h), the pointer is yellow, and above 100 (km / h) the pointer is red. In this way, as the vehicle speed increases, the color of the pointer gradually changes from blue to red, and the driver can intuitively recognize the current vehicle speed.

In addition to the thickness, shape, and color of the pointer, the coloring pattern of the pointer may be dynamically changed. In this case, a color pattern (color blinking pattern) is associated with each speed range.
For example, when the current vehicle speed is 100 (km / h) or more, the pointer is displayed in red and blinking at high speed with high brightness. This also allows the driver to intuitively recognize the current vehicle speed.

Furthermore, not only the thickness, shape, color, and coloring pattern of the pointer, but also the behavior of the pointer may be changed dynamically. For example, as shown in FIG. 18C, display is performed so that the pointer vibrates in the analog speedometer image. In an actual driving environment, the vehicle speed is not fixed to a constant value, and the speed fluctuates slightly due to the driver's accelerator depression / depression. By reproducing this situation, a real speed display can be provided to the driver.

Further, when the shape of the pointer is dynamically changed, as shown in FIG. 18D, an image indicating the current vehicle speed may be added to the pointer. Thus, by presenting the vehicle speed by combining the analog display and the digital display, the driver can easily recognize the vehicle speed indicated by the pointer.

In the above description, an analog speedometer image is displayed. However, the same effect can be obtained when applied to analog instrument images indicating other vehicle states. For example, in a fuel meter or tachometer, at least one of the thickness, shape, color, coloring pattern, and behavior of the pointer that indicates the remaining fuel amount and the engine speed may be dynamically changed. Even with this configuration, the value indicated by the pointer can be easily recognized as described above.

As described above, according to the eighth embodiment, the data acquisition unit 2 that acquires the state of the vehicle, the surrounding situation of the vehicle, and the travel mode set for the vehicle, and the analog instrument image that indicates the state of the vehicle are generated. In accordance with at least one of the vehicle state acquired by the data acquisition unit 2, the vehicle surroundings, and the vehicle state recommended in the driving mode, the thickness, shape, color, and coloring pattern of the pointer of the analog instrument image And a control unit 3 that dynamically changes at least one of the behaviors, and a drawing processing unit 4 that draws an analog instrument image and displays it on the display unit 5.
With this configuration, the thickness, shape, color, coloring pattern and behavior of the pointer are dynamically changed to improve the visibility of the analog instrument image.

Further, according to the eighth embodiment, the control unit 3 generates an analog instrument image in which the current speed of the vehicle is added to the pointer. In this way, the vehicle speed is displayed by combining the analog display and the digital display, and the driver can easily recognize the vehicle speed indicated by the pointer.

Embodiment 9 FIG.
The display device according to the ninth embodiment is different from the first embodiment in that all scale ranges in the analog instrument image are dynamically changed, but the basic configuration is the same as the first embodiment. Therefore, in the following description, FIG. 1 is referred to for the configuration of the ninth embodiment.

Next, the operation will be described.
FIG. 19 is a flowchart showing an operation example of the display device according to the ninth embodiment, in which step ST7 of FIG. 2 shown in the first embodiment is changed to step ST7i.
Therefore, the process of step ST7i will be mainly described, and hereinafter, a case where an analog speedometer image is displayed on the display unit 5 will be described.

The control unit 3 dynamically changes the scale intervals of all the speed ranges in the analog speedometer image according to the current vehicle speed Vc acquired as the vehicle state data by the data acquisition unit 2 (step ST7i). First, the control unit 3 determines whether or not the current vehicle speed Vc is less than a predetermined speed threshold value Vx (step ST7i-1). When the vehicle speed Vc is less than the speed threshold value Vx (step ST7i-1; YES), the control unit 3 determines that the host vehicle is traveling in a low speed range, and coarsely calibrates all speed ranges in the analog speedometer image. It is determined to draw at intervals (step ST7i-2). Vx is a speed threshold value for confirming whether or not the vehicle is traveling in the low speed range, and is a value corresponding to the lower limit value of the medium speed range.

When the vehicle speed Vc is equal to or higher than the speed threshold Vx (step ST7i-1; NO), the control unit 3 determines whether or not the current vehicle speed Vc is less than a predetermined speed threshold Vy (step ST7i-3). Vy is a speed threshold value for confirming whether or not the vehicle is traveling in the high speed range, and is a value corresponding to the lower limit value of the high speed range. Further, Vy> Vx.

When the vehicle speed Vc is less than the speed threshold value Vy (step ST7i-3; YES), the control unit 3 determines that the host vehicle is traveling in the medium speed range and draws all speed ranges at normal scale intervals. It decides to do (step ST7i-4).
When the vehicle speed Vc is equal to or higher than the speed threshold Vy (step ST7i-3; NO), the control unit 3 determines that the host vehicle is traveling in a high speed range and draws all speed ranges at fine scale intervals. (Step ST7i-5).

Next, the control unit 3 generates a scale image with the scale interval determined as described above, and instructs the drawing processing unit 4 to draw the scale (step ST8).
The drawing processing unit 4 draws the scales of all speed ranges of the analog speedometer image in accordance with instructions from the control unit 3 and displays them on the screen 5 a of the display unit 5.
Accordingly, as shown in FIG. 20, when the vehicle is stopped or traveling in a low speed range, the scale intervals of all the speed ranges of the analog speedometer image become coarse. When the vehicle speed is in the middle speed range from this state, the entire speed range of the analog speedometer image becomes the normal scale interval.
When the vehicle speed further increases to a high speed range, the entire speed range of the analog speedometer image becomes a fine scale interval.
By doing in this way, the driver | operator can grasp | ascertain roughly the own vehicle speed roughly by the change of the scale interval of all the speed ranges in an analog speedometer image.
In the case of FIG. 20, the speed can be instructed with higher accuracy than other speed ranges when traveling at high speed.

In the above description, the scale interval of all speed ranges in the analog speedometer image is dynamically changed according to the current speed of the host vehicle. However, the scale display brightness of all speed ranges is dynamically changed. You may change to
For example, when the host vehicle is running or stopped in a low speed range, the scale display brightness of all speed ranges of the analog speedometer image is determined to be the minimum brightness (for example, 40%), and the host vehicle is in the middle speed range. When the vehicle is traveling at a normal speed display brightness (for example, 80%), the entire speed range of the analog speedometer image is determined. Further, when the host vehicle is traveling in a high speed range, all speed ranges of the analog speedometer image are determined to have a high scale display brightness (for example, 100%).
Even in this way, the driver can intuitively roughly grasp the own vehicle speed by changing the scale display brightness of all speed ranges in the analog speedometer image.

FIG. 21 is a flowchart showing another operation example of the display device according to the ninth embodiment, in which step ST7 of FIG. 2 shown in the first embodiment is changed to step ST7j.
Therefore, the process of step ST7j will be mainly described, and hereinafter, a case where an analog speedometer image is displayed on the display unit 5 will be described.

The control unit 3 dynamically changes the scale intervals of all speed ranges in the analog speedometer image according to the current acceleration Ac of the host vehicle acquired as the vehicle state data by the data acquisition unit 2 (step ST7j). .
First, the control unit 3 determines whether or not the acceleration Ac is less than a predetermined acceleration threshold value Ax (step ST7j-1). When the acceleration Ac is less than the acceleration threshold value Ax (step ST7j-1; YES), the control unit 3 determines that the host vehicle is decelerating and draws all the speed ranges in the analog speedometer image with coarse scale intervals. It decides to do (step ST7j-2). Ax is a deceleration threshold for confirming deceleration of the vehicle, and Ax ≦ 0.

When the acceleration Ac is greater than or equal to the acceleration threshold Ax (step ST7j-1; NO), the control unit 3 determines whether or not the acceleration Ac is less than a predetermined acceleration threshold Ay (step ST7j-3). Ay is an acceleration threshold for confirming the acceleration of the vehicle, and Ay ≧ 0. When the current acceleration Ac of the vehicle is less than the acceleration threshold value Ay (step ST7j-3; YES), the control unit 3 determines that the host vehicle is traveling at a constant speed, and sets all speed ranges to normal scale intervals. (Step ST7j-4).
When the acceleration Ac is equal to or greater than the acceleration threshold value Ay (step ST7j-3; NO), the control unit 3 determines that the host vehicle is accelerating and determines to draw all speed ranges at fine scale intervals. (Step ST7j-5).

Next, the control unit 3 generates a scale image with the scale interval determined as described above, and instructs the drawing processing unit 4 to draw the scale (step ST8).
The drawing processing unit 4 draws the scales of all speed ranges of the analog speedometer image in accordance with instructions from the control unit 3 and displays them on the screen 5 a of the display unit 5.
Thereby, as shown in FIG. 22, when the vehicle is decelerating, the scale intervals of all speed ranges of the analog speedometer image become coarse. When the vehicle travels at a constant speed from this state, the entire speed range of the analog speedometer image becomes a normal scale interval.
When the vehicle is further accelerated, the entire speed range of the analog speedometer image becomes a fine scale interval. By doing in this way, the driver | operator can grasp | ascertain roughly the own vehicle speed roughly by the change of the scale interval of all the speed ranges in an analog speedometer image.
In the case of FIG. 22, it is possible to instruct the speed with higher accuracy than in other states when the vehicle is accelerated.

In the above description, the case where the scale intervals of all speed ranges in the analog speedometer image are dynamically changed in accordance with the current acceleration / deceleration of the host vehicle is shown. It may be changed dynamically.
For example, when the host vehicle is decelerating, the scale display brightness of all speed ranges in the analog speedometer image is determined as the minimum brightness (for example, 40%), and the host vehicle is traveling at a constant speed. The entire speed range of the analog speedometer image is determined as normal scale display brightness (for example, 80%). Furthermore, when the host vehicle is accelerating, the entire speed range of the analog speedometer image is determined to have a high scale display brightness (for example, 100%).
Even in this way, the driver can intuitively roughly grasp the own vehicle speed by changing the scale display brightness of all speed ranges in the analog speedometer image.

As described above, according to the ninth embodiment, the control unit 3 dynamically changes the scale intervals of all speed ranges of the analog speedometer image according to the traveling speed or acceleration / deceleration of the vehicle.
By comprising in this way, the own vehicle speed can be roughly grasped | ascertained intuitively by the change of the scale interval of all the speed ranges in an analog speedometer image.

Further, according to the ninth embodiment, the controller 3 dynamically changes the scale display brightness of all speed ranges of the analog speedometer image according to the traveling speed or acceleration / deceleration of the vehicle.
By comprising in this way, the own vehicle speed can be roughly grasped | ascertained intuitively by the change of the scale display brightness of all the speed ranges in an analog speedometer image.

For example, it is important for a speedometer of a vehicle that a driver can quickly and accurately recognize an instruction value (current speed) while the vehicle is traveling. That is, if the speedometer is in a display mode that makes it difficult for the driver to recognize the indicated value or easily recognizes it, a serious accident may occur.
Therefore, in the present invention, as indicated in the first to ninth embodiments, the analog speedometer is designated by dynamically changing the scale interval, scale display brightness, and indicator display mode of the analog speedometer image. Is emphasized. By doing so, it is possible to quickly and accurately recognize the indicated part of the analog speedometer, which is important information during traveling, and to reduce the risk of an accident.

In the first to ninth embodiments, the case where the moving body is a vehicle (automobile, motorcycle, bicycle, etc.) has been shown. However, the present invention is applied to a display device for a moving body including a railway vehicle, a ship, an aircraft, and the like. can do.

In the present invention, within the scope of the invention, any combination of each embodiment, any component of each embodiment can be modified, or any component can be omitted in each embodiment. .

The display device according to the present invention is suitable for, for example, a display device that controls display of a display screen built in an instrument panel of a vehicle because the visibility of an analog instrument image is improved.

1 display device, 2 data acquisition unit, 3 control unit, 4 drawing processing unit, 5 display unit, 5a display screen.

Claims

A display device that displays an analog instrument image indicating the state of a moving object on a display unit,
A data acquisition unit for acquiring a state of the mobile body, a surrounding situation of the mobile body, and a movement mode set in the mobile body;
An analog instrument image indicating the state of the moving body is generated, and at least one of the state of the moving body acquired by the data acquisition unit, the surrounding state of the moving body, and the state of the moving body recommended in the moving mode. According to the control unit that dynamically changes the scale interval of the analog instrument image,
A display device comprising a drawing processing unit that draws the analog instrument image and displays the image on the display unit.
The control unit changes the scale interval within the range including the instruction value of the current state of the moving body more finely than outside the range, or changes the scale outside the range to a coarser interval than within the range or displays The display device according to claim 1, wherein the display device is not.
3. The display device according to claim 2, wherein the range including the instruction value of the current state of the mobile object is a range having the instruction value of the current state of the mobile object as a central value.
3. The display device according to claim 2, wherein the control unit discretely varies a range including the instruction value in accordance with an instruction value of the current state of the moving body.
The display device according to claim 1, wherein the control unit dynamically changes the scale intervals of all speed ranges of the analog instrument image according to the moving speed or acceleration / deceleration of the moving body.
The control unit finely changes the scale interval within the speed range from the lower limit value to the upper limit value of the speed limit of the road on which the moving body is moving, or changes the scale outside the speed range. The display device according to claim 1, wherein the interval is changed to a coarser interval than in the speed range or is not displayed.
The control unit changes a scale interval within a speed range where there is no possibility of collision with the other moving body from a relative speed with another moving body preceding or following the moving body, more finely than outside the speed range. Alternatively, the scale outside the speed range is changed to a coarser interval than the speed range or is not displayed.
The controller changes the scale interval within the speed range recommended for the moving body in the movement mode more finely than outside the speed range, or makes the scale outside the speed range coarser than within the speed range. The display device according to claim 1, wherein the display device is changed or not displayed.
A display device that displays an analog instrument image indicating the state of a moving object on a display unit,
A data acquisition unit for acquiring a state of the mobile body, a surrounding situation of the mobile body, and a movement mode set in the mobile body;
An analog instrument image indicating the state of the moving body is generated, and at least one of the state of the moving body acquired by the data acquisition unit, the surrounding state of the moving body, and the state of the moving body recommended in the moving mode. According to the control unit for dynamically changing the scale display brightness of the analog instrument image,
A display device comprising a drawing processing unit that draws the analog instrument image and displays the image on the display unit.
The control unit changes the scale display brightness within a range including the instruction value of the current state of the moving body to be higher than outside the range, or changes the scale outside the range to a display brightness lower than within the range. The display device according to claim 9, wherein the display device is not displayed.
11. The display device according to claim 10, wherein the range including the instruction value of the current state of the mobile object is a range having the instruction value of the current state of the mobile object as a center value.
The display device according to claim 10, wherein the control unit discretely varies a range including the instruction value in accordance with an instruction value of the current state of the moving body.
10. The display device according to claim 9, wherein the control unit dynamically changes the scale display brightness of all speed ranges of the analog instrument image according to the moving speed or acceleration / deceleration of the moving body.
The control unit changes the scale display lightness within the speed range from the lower limit value to the upper limit value of the speed limit of the road on which the moving body is moving higher than outside the speed range, or a scale outside the speed range. The display device according to claim 9, wherein the display brightness is changed to a display brightness lower than the speed range or is not displayed.
The control unit changes a scale display brightness within a speed range in which there is no possibility of a collision with the other moving body to be higher than outside the speed range based on a relative speed with another moving body preceding or following the moving body. Alternatively, the scale outside the speed range is changed to a display brightness lower than that within the speed range or is not displayed.
The control unit changes the scale display brightness within the speed range recommended for the moving body in the movement mode to be higher than outside the speed range, or displays the scale outside the speed range below the speed range. The display device according to claim 9, wherein the display device changes to brightness or does not display.
A display device that displays an analog instrument image indicating the state of a moving object on a display unit,
A data acquisition unit for acquiring a state of the mobile body, a surrounding situation of the mobile body, and a movement mode set in the mobile body;
An analog instrument image indicating the state of the moving body is generated, and at least one of the state of the moving body acquired by the data acquisition unit, the surrounding state of the moving body, and the state of the moving body recommended in the moving mode. And a controller that dynamically changes at least one of the thickness, shape, color, coloring pattern and behavior of the pointer of the analog instrument image,
A display device comprising a drawing processing unit that draws the analog instrument image and displays the image on the display unit.
The display device according to claim 17, wherein the control unit generates the analog instrument image in which a current speed of the moving body is added to a pointer.