JP6882930B2 - Speedometer display device, speedometer display system and speedometer display method - Google Patents

Description

The disclosed embodiments relate to speedometer display devices, speedometer display systems and speedometer display methods.

Conventionally, there is known a speedometer display device that displays a scale and a pointer that rotates according to the vehicle speed as an image and changes the display mode of the speedometer according to the vehicle speed (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2004-182092

However, in the speedometer display device, when the display mode of the speedometer is changed, the rotation center position of the pointer, the angle of the pointer, and the like are changed, which may give the driver a sense of discomfort.

One aspect of the embodiment is made in view of the above, and an object of the present invention is to provide a speedometer display device, a speedometer display system, and a speedometer display method that reduce a driver's discomfort.

The speedometer display device according to one aspect of the embodiment includes a receiving unit, a generating unit, and a transmitting unit. The receiver receives the recommended vehicle speed. When the recommended vehicle speed is received, the generation unit maintains the position of the rotary pointer indicating the current vehicle speed, and the scale interval of the recommended vehicle speed region including the recommended vehicle speed is larger than the scale interval of other vehicle speed regions. Generate a meter image of the speedometer so that it becomes larger. The transmitter transmits the generated meter image.

According to one aspect of the embodiment, the driver's discomfort can be reduced.

FIG. 1 is a schematic view illustrating a method of displaying a vehicle speed by a speedometer display system according to the present embodiment. FIG. 2 is a schematic block diagram showing a speedometer display system according to the first embodiment. FIG. 3A is a display example of a normal image. FIG. 3B is a display example of a recommended vehicle speed image. FIG. 3C is a display example of a recommended vehicle speed image. FIG. 3D is a display example of the first intermediate meter image. FIG. 3E is a display example of the second intermediate meter image. FIG. 4 is a flowchart illustrating the meter display process according to the first embodiment. FIG. 5A is a display example of a recommended vehicle speed image. FIG. 5B is a display example of the first intermediate meter image. FIG. 6A is a display example of a recommended vehicle speed image. FIG. 6B is a display example of the first intermediate meter image. FIG. 7 is another display example of the recommended vehicle speed image. FIG. 8A is a display example of a recommended vehicle speed image. FIG. 8B is a display example of the recommended vehicle speed image.

Hereinafter, the speedometer display device, the speedometer display system, and the speedometer display method disclosed in the present application will be described with reference to the accompanying drawings. The present invention is not limited to the embodiments shown below.

The speedometer display system 1 according to the embodiment displays a meter image related to the vehicle speed in the display area 30 of the meter display unit 3. The meter image includes a character image 21 representing a numerical value of the vehicle speed, a scale image 22, and a pointer image 23. The pointer image 23 rotates around the rotation axis according to the vehicle speed, and is displayed so as to indicate the current vehicle speed. The scale image 22 and the character image 21 are displayed along the rotation direction of the pointer image 23 (hereinafter, referred to as “rotation direction”). The pointer may not be displayed as an image, but may be separately configured by a rod-shaped member.

<Overview of vehicle speed display method>
First, a method of displaying the vehicle speed by the speedometer display system 1 according to the present embodiment will be described with reference to FIG. FIG. 1 is a schematic view illustrating a method of displaying a vehicle speed by the speedometer display system 1 according to the present embodiment.

When the speedometer display system 1 does not detect the recommended vehicle speed, the speedometer display system 1 generates meter images (hereinafter, referred to as "normal image 20A") in which the scale images 22 are displayed at equal intervals along the rotation direction, and is usually used. The image 20A is displayed in the display area 30.

The recommended vehicle speed is detected by the navigation system 2 based on the current position of the vehicle 100 using GPS (Global Positioning System) (not shown), map information, traffic regulation information, and the like. Traffic regulation information includes the presence or absence of an ETC gate, the type of road on which the vehicle 100 is traveling (expressways, general roads, etc.), the road conditions on which the vehicle 100 is traveling (sharp curves, slopes of the road surface, etc.). , Speed regulation information, traffic jam information, weather information, etc. are included. The recommended vehicle speed may be a vehicle speed having a predetermined range.

When the speedometer display system 1 detects the recommended vehicle speed by the navigation system 2 (S1), the speedometer display device 4 sets the recommended vehicle speed range (S2).

The recommended vehicle speed region is an region set to guide the vehicle speed to the recommended vehicle speed. The recommended vehicle speed region is set to a predetermined region including the recommended vehicle speed. The predetermined area is a preset area. For example, the recommended vehicle speed region is set near the recommended vehicle speed. Further, for example, when the recommended vehicle speed is a vehicle speed having a predetermined range, the recommended vehicle speed range may be set to the same range as the recommended vehicle speed. Further, for example, the recommended vehicle speed region may be set in a range including the recommended vehicle speed from the current vehicle speed.

The speedometer display system 1 generates a meter image (hereinafter referred to as "recommended vehicle speed image 20B") in which the scale interval of the recommended vehicle speed region is larger than the scale interval of other vehicle speed regions (S3), and the generated recommended vehicle speed image. 20B is displayed in the display area 30 (S4).

When the speedometer display system 1 detects the recommended vehicle speed, the position of the pointer image 23 (including the character image 21 indicating the current vehicle speed and the scale image 22; the same shall apply hereinafter) is determined from the normal image 20A. The recommended vehicle speed image 20B is generated so that the scale interval of the recommended vehicle speed region is larger than the scale interval of the other vehicle speed region while being maintained, and the generated recommended vehicle speed image 20B is displayed in the display area 30.

FIG. 1 shows a normal image 20A having a vehicle speed of 60 km / h and a vehicle speed of 60 km / h, which is 20 km / h or more and 40 km / h or less (20 to 40 km / h, hereinafter similarly expressed). The recommended vehicle speed image 20B in which the recommended vehicle speed is detected and the recommended vehicle speed range is set to 20 to 40 km / h is shown as an example. In the speedometer display system 1, the position of the pointer image 23 is maintained, the scale interval in the recommended vehicle speed region of 20 to 40 km / h is increased, the scale interval in other vehicle speed regions less than 20 km / h is decreased, and the scale interval is 40 km. A recommended vehicle speed image 20B in which the scale interval of another vehicle speed region larger than / h is not changed is generated, and the recommended vehicle speed image 20B is displayed in the display area 30.

In this way, when the speedometer display system 1 detects the recommended vehicle speed, the position of the pointer image 23 is maintained, and the scale interval of the recommended vehicle speed region becomes larger than the scale interval of the other vehicle speed region. 20B is generated, and the generated recommended vehicle speed image 20B is displayed in the display area 30. Therefore, when the display mode of the meter image is changed and the meter image is changed from the normal image 20A to the recommended vehicle speed image 20B, the recommended vehicle speed region can be conspicuous while reducing the discomfort given to the driver.

(First Embodiment)
<Overview of speedometer display system 1>
Next, the speedometer display system 1 according to the first embodiment will be described with reference to FIG. FIG. 2 is a schematic block diagram showing the speedometer display system 1 according to the first embodiment.

The speedometer display system 1 includes a navigation system 2, a meter display unit 3, a speedometer display device 4, and a vehicle speed sensor 5.

The navigation system 2 detects the current position of the vehicle 100 (see FIG. 1) using GPS, and outputs a map image and voice that guide the route from the current position to the destination to provide route guidance.

The navigation system 2 detects a section in which a recommended vehicle speed is set (hereinafter, referred to as a "recommended vehicle speed section") based on map information, traffic regulation information, and the like. Then, the navigation system 2 receives a signal related to the vehicle speed from the vehicle speed sensor 5, and detects the recommended vehicle speed at a predetermined timing based on the vehicle speed and the distance to the recommended vehicle speed setting section. The predetermined timing is, for example, a timing at which the time until the vehicle 100 reaches the recommended vehicle speed setting section becomes a predetermined time. The predetermined time is a preset time.

When the navigation system 2 detects the recommended vehicle speed, it transmits a signal related to the recommended vehicle speed to the speedometer display device 4. Further, the navigation system 2 transmits a signal for canceling the recommended vehicle speed to the speedometer display device 4 after the vehicle 100 has passed the recommended vehicle speed section. That is, the navigation system 2 detects the presence or absence of the recommended vehicle speed and transmits the detection result to the speedometer display device 4.

The meter display unit 3 is a liquid crystal display provided on an instrument panel (not shown) in the vehicle interior, and digitally displays a meter image showing the current vehicle speed in the display area 30.

The speedometer display device 4 includes a receiving unit 10, a control unit 11, and a transmitting unit 12.

The receiving unit 10 receives a signal related to the vehicle speed from the vehicle speed sensor 5. Further, the receiving unit 10 receives a signal regarding the detection result of the recommended vehicle speed from the navigation system 2.

The control unit 11 includes a setting unit 15, a selection unit 16, and a generation unit 17. The control unit 11 includes a microcomputer having a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like. In the control unit 11, each function of the control unit 11 is exhibited by the CPU executing the program stored in the ROM using the RAM as a work area. The control unit 11 may be composed of a plurality of control units.

When the recommended vehicle speed is detected by the navigation system 2 and the signal related to the recommended vehicle speed is received, the setting unit 15 sets the recommended vehicle speed range based on the recommended vehicle speed.

The selection unit 16 selects a meter image generated by the generation unit 17 based on the detection result of the recommended vehicle speed. The selection unit 16 selects the normal image 20A as the meter image generated by the generation unit 17 when the recommended vehicle speed is not detected, that is, when the reception unit 10 does not receive the recommended vehicle speed. When the recommended vehicle speed is detected, that is, when the recommended vehicle speed is received by the receiving unit 10, the selection unit 16 selects the recommended vehicle speed image 20B as the meter image to be generated.

Further, in the selection unit 16, when the vehicle 100 passes the recommended vehicle speed setting section after the recommended vehicle speed is detected and the recommended vehicle speed is not detected, the first intermediate meter image 20C (FIG. 6) is generated as a meter image generated by the generation unit 17. 3D) is selected, and then the second intermediate meter image 20D (see FIG. 3E) is selected as the meter image generated by the generator 17. When the second intermediate meter image 20D further matches the normal image 20A, the selection unit 16 selects the normal image 20A as the meter image generated by the generation unit 17.

The generation unit 17 generates a meter image based on the current vehicle speed, the selection result by the selection unit 16, and the like. The meter image generated by the generation unit 17 will be described later.

The transmission unit 12 transmits the meter image generated by the generation unit 17 to the meter display unit 3. As a result, the meter image generated by the generation unit 17 is displayed in the display area 30 of the meter display unit 3.

<Details of meter image>
Next, the meter image generated by the generation unit 17 will be described.

When the recommended vehicle speed is not detected (received), the generation unit 17 displays the scale images 22 at equal intervals along the rotation direction in the semicircular display area 30, and the character image 21 is displayed in the rotation direction. 20A is generated, which is displayed along the line and the pointer image 23 is displayed so as to show the scale image 22 (character image 21) corresponding to the current vehicle speed.

For example, the generation unit 17 generates a normal image 20A as shown in FIG. 3A. FIG. 3A is a display example of the normal image 20A. The normal image 20A of FIG. 3A is a display example when the vehicle 100 is traveling at a vehicle speed of 60 km / h. The line indicating the display area 30 does not have to be actually displayed. Further, the display area 30 is not limited to a semicircular shape, and may be fan-shaped or may be a part of an ellipse.

When the recommended vehicle speed is detected (received) and the generated meter image is changed from the normal image 20A to the recommended vehicle speed image 20B, the generation unit 17 maintains the position of the pointer image 23 and the scale interval of the recommended vehicle speed region. Generates a recommended vehicle speed image 20B in which is larger than the scale spacing of the other vehicle speed regions. The generation unit 17 changes the positions of the scale image 22 and the character image 21 in the rotation direction while maintaining the position of the pointer image 23, increases the scale interval in the recommended vehicle speed region with respect to the normal image 20A, and makes other The recommended vehicle speed image 20B is generated by reducing the scale interval of a part of the vehicle speed region.

For example, the generation unit 17 generates the recommended vehicle speed image 20B shown in FIG. 3B. FIG. 3B is a display example of the recommended vehicle speed image 20B. The recommended vehicle speed image 20B shown in FIG. 3B is a display example when the recommended vehicle speed is set to 30 km / h and the recommended vehicle speed range is set to 20 to 60 km / h, and is a meter image changed from the normal image 20A shown in FIG. 3A. Is.

In the recommended vehicle speed image 20B shown in FIG. 3B, while maintaining the position of the pointer image 23, the character image 21 and the scale image 22 (characters of 60 km / h) having a recommended vehicle speed range of 20 to 60 km / h are compared with the normal image 20A. The position of the image 21 and the scale image 22) and the position of the character image 21 and the scale image 22 which are other vehicle speed regions of less than 20 km / h are changed in the rotation direction. As a result, the scale interval in the recommended vehicle speed region of 20 to 60 km / h becomes larger than that of the normal image 20A shown in FIG. 3A, the scale interval in other vehicle speed regions less than 20 km / h becomes smaller, and the scale interval becomes smaller than 60 km / h. The scale spacing in other vehicle speed regions, which is also large, is maintained.

The recommended vehicle speed image 20B shown in FIG. 3B is generated, for example, when the vehicle 100 approaches the ETC gate in order to travel on the highway.

The generation unit 17 detects the recommended vehicle speed, changes the generated meter image from the normal image 20A to the recommended vehicle speed image 20B, and then generates the recommended vehicle speed image 20B by rotating the pointer image 23 according to the vehicle speed. In the recommended vehicle speed image 20B, the positions of the scale image 22 and the character image 21 are not changed, and only the position of the pointer image 23 is changed according to the vehicle speed. The generation unit 17 generates the recommended vehicle speed image 20B from the time when the recommended vehicle speed is detected until the vehicle 100 passes through the recommended vehicle speed section and the recommended vehicle speed is not detected.

For example, when the vehicle 100 decelerates after generating the recommended vehicle speed image 20B shown in FIG. 3B, the generation unit 17 generates the recommended vehicle speed image 20B in which the pointer image 23 is rotated according to the vehicle speed as shown in FIG. 3C. To do. FIG. 3C is a display example of the recommended vehicle speed image 20B. The recommended vehicle speed image 20B shown in FIG. 3C is a meter image in which the vehicle speed is reduced to 30 km / h.

When the vehicle 100 passes through the recommended vehicle speed section and the recommended vehicle speed is not detected, the generation unit 17 determines the scale interval of the recommended vehicle speed region and the scale interval of the recommended vehicle speed region while maintaining the position of the pointer image 23 with respect to the recommended vehicle speed image 20B. A first intermediate meter image 20C is generated in which the difference from the scale interval in another vehicle speed region is small. The generation unit 17 generates the first intermediate meter image 20C by changing the positions of the scale image 22 and the character image 21 in the rotation direction while maintaining the position of the pointer image 23.

For example, the generation unit 17 generates the first intermediate meter image 20C as shown in FIG. 3D. FIG. 3D is a display example of the first intermediate meter image 20C. The first intermediate meter image 20C shown in FIG. 3D is a meter image displayed immediately after the vehicle 100 has passed the recommended vehicle speed section in a state where the recommended vehicle speed image 20B shown in FIG. 3C is displayed.

In the first intermediate meter image 20C shown in FIG. 3D, while the position of the pointer image 23 is maintained, the scale interval in the region of 20 to 60 km / h, which is the recommended vehicle speed region, becomes smaller than the recommended vehicle speed image 20B. The scale interval in the other vehicle speed regions of less than 20 km / h and in the region larger than 60 km / h becomes large, and the difference in the scale intervals becomes small.

The first intermediate meter image 20C shown in FIG. 3D is generated, for example, when the vehicle 100 passes through the ETC gate.

After generating the first intermediate meter image 20C, the generation unit 17 generates the second intermediate meter image 20D in which the scale interval of the first intermediate meter image 20C gradually changes to the scale interval of the normal image 20A. That is, the generation unit 17 generates the second intermediate meter image 20D so that the difference between the scale intervals gradually becomes smaller. The generation unit 17 generates the second intermediate meter image 20D as a meter image in the process of changing the scale image 22 from the first intermediate meter image 20C to the normal image 20A displayed at equal intervals. The generation unit 17 generates the second intermediate meter image 20D by changing the positions of the scale image 22, the character image 21, and the pointer image 23 in the rotation direction.

In the second intermediate meter image 20D, the position of the pointer image 23 is changed even when the vehicle speed is constant. The generation unit 17 generates a second intermediate meter image 20D in which the scale interval gradually changes so as to reduce the driver's discomfort when the position of the pointer image 23 is changed. Finally, the generation unit 17 generates a second intermediate meter image 20D in which the scale images 22 are displayed at equal intervals along the rotation direction as shown in FIG. 3E. FIG. 3E is a display example of the second intermediate meter image 20D.

<Meter display processing>
Next, the meter display process according to the first embodiment will be described with reference to FIG. FIG. 4 is a flowchart illustrating the meter display process according to the first embodiment.

When the speedometer display system 1 does not detect the recommended vehicle speed (S10; No), the speedometer display system 1 generates a normal image 20A (S11) and displays the normal image 20A in the display area 30 (S12).

When the speedometer display system 1 detects the recommended vehicle speed (S10; Yes), the speedometer display system 1 generates the recommended vehicle speed image 20B (S13) and displays the recommended vehicle speed image 20B in the display area 30 (S14).

The speedometer display system 1 detects the recommended vehicle speed, generates a recommended vehicle speed image 20B (S13) until the vehicle 100 passes the recommended vehicle speed section (S15; No), and displays the recommended vehicle speed image 20B in the display area 30. (S14). The recommended vehicle speed image 20B newly generated here is a meter image in which the position of the pointer image 23 is changed according to the vehicle speed.

When the vehicle 100 has passed the recommended vehicle speed section (S15; Yes), the speedometer display system 1 generates the first intermediate meter image 20C (S16) and displays the first intermediate meter image 20C in the display area 30. (S17).

The speedometer display system 1 generates the second intermediate meter image 20D (S18) and displays the second intermediate meter image 20D in the display area 30 (S19).

In the speedometer display system 1, when the second intermediate meter image 20D does not match the normal image 20A (S20; No), that is, the scale images 22 of the second intermediate meter image 20D are evenly spaced along the rotation direction. If not, the second intermediate meter image 20D is generated (S18), and the second intermediate meter image 20D is displayed in the display area 30 of the meter display unit 3 (S19). Here, the newly generated second intermediate meter image 20D is a meter image in which the positions of the scale image 22, the character image 21, and the pointer image 23 are changed so that the difference in the scale intervals gradually becomes smaller. ..

When the second intermediate meter image 20D matches the normal image 20A (S20; Yes), the speedometer display system 1 generates the normal image 20A (S11) and displays the normal image 20A in the display area 30 (S20; Yes). S12).

<Effect of the first embodiment>
When the speedometer display system 1 detects the recommended vehicle speed, the speedometer display system 1 generates the recommended vehicle speed image 20B so that the scale interval of the recommended vehicle speed region is larger than the scale interval of the other vehicle speed region while maintaining the position of the pointer image 23. The generated recommended vehicle speed image 20B is displayed in the display area 30 of the meter display unit 3. Specifically, the speedometer display system 1 increases the scale interval in the recommended vehicle speed region and decreases the scale interval in a part of the other vehicle speed region with respect to the normal image 20A. As a result, the recommended vehicle speed image 20B in which the recommended vehicle speed region is conspicuous can be displayed in the display area 30, and the driver can be urged to set the vehicle speed as the recommended vehicle speed region, which improves safety and traffic congestion. Can be alleviated. Further, at that time, since the position of the pointer image 23 is maintained, it is possible to reduce the driver's discomfort when the meter image is changed from the normal image 20A to the recommended vehicle speed image 20B.

When the speedometer image is returned from the recommended vehicle speed image 20B to the normal image 20A, the speedometer display system 1 maintains the position of the pointer image 23 and sets the scale interval of the recommended vehicle speed image 20B and the scale interval of another vehicle speed region. The first intermediate meter image 20C in which the difference between the two is small is generated. Thereby, when the meter image is changed from the recommended vehicle speed image 20B to the first intermediate meter image 20C, it is possible to prepare to return from the recommended vehicle speed image 20B to the normal image 20A while reducing the driver's discomfort.

After generating the first intermediate meter image 20C, the speedometer display system 1 generates the second intermediate meter image 20D that gradually changes from the scale interval of the first intermediate meter image 20C to the scale interval of the normal image 20A. As a result, the meter image can be returned to the normal image 20A while reducing the driver's discomfort.

The speedometer display system 1 detects a recommended speed based on traffic regulation information. As a result, the driver can be encouraged to drive safely and the safety can be improved.

(Second Embodiment)

Next, the speedometer display system 1 according to the second embodiment will be described. Here, the points different from the speedometer display system 1 according to the first embodiment will be mainly described, and the description of the same configuration and processing contents as the speedometer display system 1 according to the first embodiment will be omitted. In the speedometer display system 1 according to the second embodiment, the meter images generated when the recommended vehicle speed is detected are different.

<Generation of meter image>
When the recommended vehicle speed is detected and the meter image to be generated is changed from the normal image 20A to the recommended vehicle speed image 20B, the generation unit 17 increases the display area 30 in the rotation direction with respect to the normal image 20A, and the pointer image. While maintaining the position of 23, the recommended vehicle speed image 20B is generated in which the scale interval of the recommended vehicle speed region is larger than the scale interval of the other vehicle speed regions. The generation unit 17 generates the recommended vehicle speed image 20B by changing the positions of the scale image 22 and the character image 21 in the rotation direction according to the enlarged display area 30 while maintaining the position of the pointer image 23. To do.

For example, the generation unit 17 generates the recommended vehicle speed image 20B shown in FIG. 5A. FIG. 5A is a display example of the recommended vehicle speed image 20B. The recommended vehicle speed image 20B shown in FIG. 5A is a display example when the recommended vehicle speed is set to 30 km / h and the recommended vehicle speed range is set to 20 to 60 km / h, as in FIG. 3B of the first embodiment. It is a meter image changed from the normal image 20A shown.

In the recommended vehicle speed image 20B shown in FIG. 5A, the display area 30 on the recommended vehicle speed region side is larger in the rotation direction than the pointer image 23 with respect to the normal image 20A shown in FIG. 3A. Further, in the recommended vehicle speed image 20B shown in FIG. 5A, the character image 21 and the scale image 22 having a recommended vehicle speed region of 20 to 60 km / h are adjusted to the enlarged display area 30 while maintaining the position of the pointer image 23. The position of (excluding the character image 21 and the scale image 22 of 60 km / h) and the position of the character image 21 and the scale image 22 of less than 20 km / h, which are a part of the other vehicle speed region, are changed in the rotation direction. Will be done. As a result, the scale interval in the recommended vehicle speed region of 20 to 60 km / h becomes larger than that of the normal image 20A shown in FIG. 3A, the scale interval in other vehicle speed regions less than 20 km / h becomes smaller, and the scale interval becomes smaller than 60 km / h. The scale spacing in other vehicle speed regions, which is also large, is maintained.

The generation unit 17 may generate a recommended vehicle speed image 20B in which the scale intervals of all other vehicle speed regions are smaller than those of the normal image 20A. In this case, the generation unit 17 may generate the recommended vehicle speed image 20B in which the display area 30 on the side opposite to the recommended vehicle speed region is smaller than the pointer image 23. As a result, the recommended vehicle speed range can be made more conspicuous, safety can be improved, and traffic congestion can be alleviated.

When the vehicle 100 passes through the recommended vehicle speed section, the recommended vehicle speed is not detected, and the recommended vehicle speed image 20B is returned to the normal image 20A, the generation unit 17 maintains the display area 30 with respect to the recommended vehicle speed image 20B. At the same time, the first intermediate meter image 20C is generated as in the first embodiment.

For example, the generation unit 17 generates the first intermediate meter image 20C as shown in FIG. 5B. FIG. 5B is a display example of the first intermediate meter image 20C. The first intermediate meter image 20C shown in FIG. 5B is displayed immediately after the vehicle 100 has passed the recommended vehicle speed section in a state where the vehicle speed has been reduced to 30 km / h after the recommended vehicle speed image 20B shown in FIG. 5A is displayed. It is a meter image to be made.

In the first intermediate meter image 20C shown in FIG. 5B, the positions of the character image 21 and the scale image 22 are changed in the rotation direction while the position of the pointer image 23 and the display area 30 are maintained. In the first intermediate meter image 20C shown in FIG. 5B, the scale interval in the region of 20 to 60 km / h, which is the recommended vehicle speed region, is smaller than the recommended vehicle speed image 20B, and is less than 20 km / h, which is the other vehicle speed region. And the scale interval of the area larger than 60 km / h becomes large.

The generation unit 17 generates the second intermediate meter image 20D after generating the first intermediate meter image 20C. In the generation unit 17, the display area 30 enlarged when generating the recommended vehicle speed image 20B gradually becomes the display area 30 of the normal image 20A which is the original meter image, and the difference between the scale intervals gradually becomes smaller. 2 Generates an intermediate meter image 20D.

When the generation unit 17 can generate the first intermediate meter image 20C by reducing the display area 30 in the rotation direction while maintaining the position of the pointer image 23, for example, the position of the pointer image 23 is set. If the display area 30 can be set to the display area 30 of the normal image 20A while maintaining the display area 30, the first intermediate meter image 20C with the display area 30 reduced may be generated.

<Effect of the second embodiment>
The speedometer display system 1 increases the display area 30 in the rotation direction when the recommended vehicle speed is detected. As a result, the scale interval of the recommended vehicle speed region can be increased as compared with the case where the display area 30 is not increased, and the recommended vehicle speed image 20B in which the recommended vehicle speed region is more conspicuous can be generated and displayed. Therefore, it is possible to urge the driver to set the vehicle speed in the recommended vehicle speed range, improve safety, and alleviate traffic congestion.

(Third Embodiment)
Next, the speedometer display system 1 according to the third embodiment will be described. Here, the points different from the speedometer display system 1 according to the first embodiment will be mainly described, and the description of the same configuration and processing contents as the speedometer display system 1 according to the first embodiment will be omitted. In the speedometer display system 1 according to the third embodiment, the meter images generated when the recommended vehicle speed is detected are different.

<Generation of meter image>
When the recommended vehicle speed is detected and the meter image to be generated is changed from the normal image 20A to the recommended vehicle speed image 20B, the generation unit 17 displays the display area 30 in the radial direction with respect to the rotation axis of the pointer image 23 (hereinafter, “diameter direction”). ”) To generate the recommended vehicle speed image 20B.

Specifically, when the recommended vehicle speed is detected and the meter image to be generated is changed from the normal image 20A to the recommended vehicle speed image 20B, the generation unit 17 displays the display area 30 on the outer side in the radial direction with respect to the normal image 20A. The recommended vehicle speed image 20B is generated so that the scale interval of the recommended vehicle speed region becomes larger than the scale interval of the other vehicle speed region while the position of the pointer image 23 is maintained. The generation unit 17 maintains the position of the pointer image 23 and changes the positions of the scale image 22 and the character image 21 in the radial outer direction and the rotational direction according to the enlarged display area 30, so that the recommended vehicle speed is reached. Image 20B is generated.

Specifically, the generation unit 17 generates the recommended vehicle speed image 20B shown in FIG. 6A. FIG. 6A is a display example of the recommended vehicle speed image 20B. The recommended vehicle speed image 20B shown in FIG. 6A is a display example when the recommended vehicle speed is set to 30 km / h and the recommended vehicle speed range is set to 20 to 60 km / h, as in FIG. 3B of the first embodiment. It is a meter image changed from the normal image 20A shown.

In the recommended vehicle speed image 20B shown in FIG. 6A, the predetermined display area 30 including the recommended vehicle speed region is larger in the radial direction than the normal image 20A shown in FIG. 3A. Further, in the recommended vehicle speed image 20B shown in FIG. 6A, the positions of the character image 21 and the scale image 22 of 20 to 60 km / h, which are the recommended vehicle speed regions, are changed to the outside in the radial direction in accordance with the enlarged display area 30. .. Further, in the recommended vehicle speed image 20B shown in FIG. 6A, the positions of a part of the character image 21 and the scale image 22 in the other vehicle speed region are changed to the outside in the radial direction in accordance with the enlarged display area 30.

Further, in the recommended vehicle speed image 20B shown in FIG. 6A, the character image 21 of 20 to 60 km / h, which is the recommended vehicle speed region, is adjusted to the enlarged display area 30 while maintaining the position of the pointer image 23 in the rotation direction. And the position of the scale image 22 (excluding the character image 21 and the scale image 22 of 60 km / h) and the position of the character image 21 and the scale image 22 of less than 20 km / h which are a part of other vehicle speed regions are rotated. It is changed to the direction of movement.

In this way, in the recommended vehicle speed image 20B shown in FIG. 6A, the scale interval of the recommended vehicle speed region of 20 to 60 km / h is less than 20 km / h and larger than 60 km / h with respect to the normal image 20A shown in FIG. 3A. It is larger than the scale interval in other vehicle speed regions.

The generation unit 17 generates the recommended vehicle speed image 20B by expanding and contracting the pointer image 23 according to the vehicle speed and the position of the scale image 22. For example, as shown in FIG. 6A, when the vehicle speed is 60 km / h and the scale image 22 showing 60 km / h is changed to the outside in the radial direction, the generation unit 17 responds to the position of the scale image 22. A recommended vehicle speed image 20B is generated by extending the pointer image 23.

When the vehicle 100 passes through the recommended vehicle speed section, the recommended vehicle speed is not detected, and the recommended vehicle speed image 20B is returned to the normal image 20A, the generation unit 17 indicates the position of the pointer image 23 with respect to the recommended vehicle speed image 20B. The first intermediate meter image 20C is generated in the same manner as in the first embodiment while maintaining the display area 30.

For example, the generation unit 17 generates the first intermediate meter image 20C as shown in FIG. 6B. FIG. 6B is a display example of the first intermediate meter image 20C. The first intermediate meter image 20C shown in FIG. 6B is displayed immediately after the vehicle 100 has passed the recommended vehicle speed section in a state where the vehicle speed has been reduced to 30 km / h after the recommended vehicle speed image 20B shown in FIG. 6A is displayed. It is a meter image to be made.

In the first intermediate meter image 20C shown in FIG. 6B, the positions of the character image 21 and the scale image 22 are changed in the rotation direction while the position of the pointer image 23 and the display area 30 are maintained, and the character image 21 and the scale image are changed. Part of the position of 22 is changed in the radial direction. In the first intermediate meter image 20C shown in FIG. 6B, the scale interval in the region of 20 to 60 km / h, which is the recommended vehicle speed region, is smaller than the recommended vehicle speed image 20B, and is less than 20 km / h, which is the other vehicle speed region. And the scale interval of the area larger than 60 km / h becomes large.

The generation unit 17 generates the second intermediate meter image 20D after generating the first intermediate meter image 20C. In the generation unit 17, the display area 30 enlarged when generating the recommended vehicle speed image 20B gradually becomes the display area 30 of the normal image 20A which is the original meter image, and the difference between the scale intervals gradually becomes smaller. 2 Generates an intermediate meter image 20D.

The generation unit 17 may generate the first intermediate meter image 20C by reducing the display area 30 in the radial direction while maintaining the position of the pointer image 23 in the rotation direction.

The display area 30 of the recommended vehicle speed image 20B according to the third embodiment is not limited to the above shape, and the display area 30 (a part of the display area 30) may be larger in the radial direction with respect to the normal image 20A. The generation unit 17 may generate the recommended vehicle speed image 20B shown in FIG. 7, for example. FIG. 7 is another display example of the recommended vehicle speed image 20B. The recommended vehicle speed image 20B shown in FIG. 7 is a meter image in which the display area 30 is enlarged in the radial direction by increasing the fan-shaped region including the recommended vehicle speed region in the radial direction. Further, the generation unit 17 may generate a recommended vehicle speed image 20B in which a region including another vehicle speed region, for example, a region larger than 70 km / h in FIG. 6A is reduced in the radial direction. Further, the generation unit 17 generates the recommended vehicle speed image 20B in which the display area 30 is enlarged outward in the radial direction as a whole and the positions of the character image 21 and the scale image 22 near the recommended vehicle speed region are moved outward in the radial direction. You may.

Further, the generation unit 17 sets the positions of the character image 21 and the scale image 22 in the recommended vehicle speed region and the positions of the character image 21 and the scale image 22 in a part of the other vehicle speed region according to the enlarged display area 30. May generate a recommended vehicle speed image 20B in which is moved only in the radial direction. As a result, the scale interval of the recommended vehicle speed region can be made larger than the scale interval of the other vehicle speed regions without moving the positions of the character image 21 and the scale image 22 in the rotation direction, and the recommended vehicle speed region can be made conspicuous. When the meter image is changed from the normal image 20A to the recommended vehicle speed image 20B, the driver's discomfort can be reduced.

<Effect of the third embodiment>
The speedometer display system 1 changes the display area 30 in the radial direction when the recommended vehicle speed is detected. Specifically, the speedometer display system 1 increases the display area 30 in the radial direction when the recommended vehicle speed is detected. As a result, the scale interval of the recommended vehicle speed region can be increased as compared with the case where the display area 30 is not increased, and the recommended vehicle speed image 20B in which the recommended vehicle speed region is more conspicuous can be generated and displayed. Therefore, it is possible to urge the driver to set the vehicle speed in the recommended vehicle speed range, improve safety, and alleviate traffic congestion.

(Modification example)
The generation unit 17 may generate parameters for generating a meter image. That is, generating a meter image by the generation unit 17 includes generating parameters for generating the meter image. In this case, the meter display unit 3 generates and displays an actual meter image based on the parameters.

The speedometer display system 1 may make the scale interval of the recommended vehicle speed region larger than the scale interval of the other vehicle speed region by reducing the scale interval of the other vehicle speed region with respect to the normal image 20A. That is, when the recommended vehicle speed is detected, the generation unit 17 generates the recommended vehicle speed image 20B in which the scale interval of the recommended vehicle speed region is maintained and the scale interval of the other vehicle speed region is reduced with respect to the normal image 20A. You may. Also by this, the recommended vehicle speed range can be made conspicuous, and the same effect as that of the above embodiment can be obtained.

Further, the speedometer display system 1 does not generate the first intermediate meter image 20C after the vehicle 100 has passed a certain recommended vehicle speed section when the recommended vehicle speed sections of different recommended vehicle speeds are detected at short intervals. Alternatively, another recommended vehicle speed image 20B may be generated and another recommended vehicle speed image 20B may be displayed.

For example, the generation unit 17 generates another recommended vehicle speed image 20B shown in FIG. 8A. FIG. 8A is a display example of the recommended vehicle speed image 20B. The recommended vehicle speed image 20B shown in FIG. 8A is based on the recommended vehicle speed image 20B (recommended vehicle speed 30 km / h, recommended vehicle speed range 20 to 60 km / h) shown in FIG. It is a recommended vehicle speed image 20B when 90 km / h) is detected. The recommended vehicle speed image 20B shown in FIG. 8A is, for example, a meter image when the vehicle 100 passes through the ETC gate and then joins the main line of the expressway.

The generation unit 17 increases the scale interval of the new recommended vehicle speed region of 70 to 90 km / h with respect to the recommended vehicle speed image 20B shown in FIG. 3C while maintaining the position of the pointer image 23, and increases the scale interval to 40 km / h or more and 70 km. The recommended vehicle speed image 20B is generated by reducing the scale interval in the region less than / h and maintaining the scale interval in the region less than 40 km / h and larger than 90 km / h. The generation unit 17 may generate a recommended vehicle speed image 20B in which the scale interval of a part of another vehicle speed region different from the new recommended vehicle speed region is reduced.

As shown in FIG. 8B, when the vehicle speed reaches the vehicle speed in the new recommended vehicle speed region, the generation unit 17 maintains the position of the pointer image 23 and differs in the scale interval of another vehicle speed region different from the new recommended vehicle speed region. Generates a recommended vehicle speed image 20B in which FIG. 8B is a display example of the recommended vehicle speed image 20B.

In the recommended vehicle speed image 20B shown in FIG. 8B, the scale interval in the vehicle speed region of 20 to 70 km / h becomes smaller with respect to the recommended vehicle speed image 20B shown in FIG. 8A while maintaining the position of the pointer image 23, which is less than 20 km / h. The scale interval in the vehicle speed range is increased.

In this way, when the recommended vehicle speed sections of different recommended vehicle speeds are detected at short intervals, the generation unit 17 continuously generates the recommended vehicle speed image 20B without generating the first intermediate meter image 20C. Therefore, it is possible to prevent the meter image from being changed frequently, and it is possible to reduce the driver's discomfort. While the vehicle speed is constant in the new recommended vehicle speed region, the generation unit 17 generates the recommended vehicle speed image 20B even after the vehicle 100 has passed the recommended vehicle speed section, and the recommended vehicle speed is displayed in the display area 30. Image 20B may be displayed.

Further, the speedometer display system 1 generates the recommended vehicle speed image 20B, and after the vehicle speed is changed, the vehicle speed is changed from the normal image 20A to the recommended vehicle speed image 20B when the vehicle speed generates the recommended vehicle speed image 20B. The meter image may be changed from the recommended vehicle speed image 20B to the normal image 20A when the vehicle speed reaches the current time.

Further, the speedometer display system 1 generates a recommended vehicle speed image 20B, and when the state in which the vehicle speed is set to a vehicle speed outside the recommended vehicle speed range is continued for a predetermined time set in advance, the meter image is used as the recommended vehicle speed image. You may change from 20B to the first intermediate meter image 20C.

In the above embodiment, the speedometer display system 1 makes the scale interval of the recommended vehicle speed region larger than the other recommended scale intervals, but in addition to this, the color of the recommended vehicle speed region and the other vehicle speed region is changed, or the recommended vehicle speed is changed. The area may be displayed with a gradation, the character image 21 in the recommended vehicle speed area may be enlarged, or the character image 21 in another vehicle speed area may be reduced or deleted. As a result, the recommended vehicle speed range can be made more conspicuous.

In the third embodiment, when the recommended vehicle speed is detected, the speedometer display system 1 generates the recommended vehicle speed image 20B in which the display area 30 is enlarged in the radial direction, but the generation unit 17 generates the display area 30. The recommended vehicle speed image 20B reduced in the radial direction may be generated. For example, when the recommended vehicle speed is detected, the generation unit 17 reduces the display area 30 including another vehicle speed region (a part of the other vehicle speed region) in the radial direction with respect to the normal image 20A. 20B may be generated. Also by this, the recommended vehicle speed range can be made conspicuous, and the same effect as that of the above embodiment can be obtained.

Further, the speedometer display system 1 may make the scale interval of the recommended vehicle speed region particularly recommended larger than the scale interval of other recommended vehicle speed regions. This makes it possible to make the recommended vehicle speed range particularly recommended more conspicuous.

In the above embodiment, the navigation system 2 detects the recommended vehicle speed, but the speedometer display device 4 may detect the recommended vehicle speed. Further, in the above embodiment, the speedometer display device 4 sets the recommended vehicle speed range, but the navigation system 2 may set the recommended vehicle speed range.

Further, the above-described embodiment and modification may be combined. For example, the speedometer display system 1 may increase the display area 30 outward in the rotation direction and the radial direction when the recommended vehicle speed is detected.

Further, the speedometer display system 1 may be capable of adjusting the display area 30 and the scale interval of the meter image according to the touch operation of the driver.

Further effects and variations can be easily derived by those skilled in the art. For this reason, the broader aspects of the invention are not limited to the particular details and representative embodiments expressed and described as described above. Thus, various modifications can be made without departing from the spirit or scope of the general concept of the invention as defined by the appended claims and their equivalents.

1 Speedometer display system 2 Navigation system 3 Meter display unit (display unit)
4 Speedometer display device 5 Vehicle speed sensor 10 Receiver 11 Control unit 12 Transmitter 15 Setting unit 16 Selection unit 17 Generation unit 20A Normal image 20B Recommended vehicle speed image 20C 1st intermediate meter image 20D 2nd intermediate meter image 21 Character image 22 Scale Image 23 Pointer image 30 Display area 100 Vehicle

Claims (9)

If the recommended speed has been received, while the position of the pointer of the revolvable indicating the current vehicle speed is maintained, scale intervals recommended vehicle speed range including the recommended vehicle speed is increased, the scale interval of the other vehicle speed range generation to Luz Pidometa display the meter image of speedometer to be smaller. If the recommended speed has been received, while the position of the pointer of the revolvable indicating the current vehicle speed is maintained, scale intervals recommended vehicle speed range including the recommended vehicle speed is greater than the scale interval of the other vehicle speed range as well as manner, the recommended than before the vehicle speed is received, generated to Luz Pidometa display the meter image of speedometer with a larger display area in the rotational direction of the pointer. If the previous SL recommended vehicle speed is received, speedometer display device according to請Motomeko 1 or 2 that generates the meter image which changes the display area in the radial direction with respect to the axis of rotation of the pointer. If the previous SL recommended vehicle speed is received, than before the recommended vehicle speed is received, either請Motomeko 1-3 that generates the meter image as scale interval of the recommended vehicle speed region is increased The speedometer display device described in one. To return the scale interval of the meter image before Symbol recommended vehicle speed is generated is received in the original scale intervals, while the position of the pointer is maintained, the scale interval of the recommended vehicle speed region, the other vehicle speed range speedometer display device according to any one of the first that generates an intermediate meter image請Motomeko 1-4 the difference is the scale interval to decrease was changed with the scale interval. After generating the pre-Symbol first intermediate meter image, speedometer according to請Motomeko 5 that generates a second intermediate meter image scale interval of the first intermediate meter image is gradually changed to the original scale intervals Display device. Speedometer display device according to any one of請Motomeko 1-6 that will receive the recommended vehicle speed based on the transportation regulatory information. Detecting the recommended vehicle speed, if the previous SL recommended vehicle speed is received, while the position of the pointer of the revolvable indicating the current vehicle speed is maintained, scale intervals recommended vehicle speed range including the recommended vehicle speed increases, other scale interval of the vehicle speed region generates a meter image of speedometer to be smaller,
Transmits the generated the meter image,
Luz Pidometa display system to display the previous Symbol meter image. If the recommended speed has been received, while the position of the pointer of the revolvable indicating the current vehicle speed is maintained, scale intervals recommended vehicle speed range including the recommended vehicle speed is increased, the scale interval of the other vehicle speed range Luz Pidometa display method to generate a meter image of speedometer to be smaller.

Images