JP6205235B2 - Vehicle display device - Google Patents

Description

  The present invention relates to a vehicle display device in which instrument images are displayed on a screen.

  2. Description of the Related Art Conventionally, a graphic meter that displays an instrument image simulating a meter such as a speedometer or a tachometer on a screen is known as a vehicle display device.

  As this type of prior art, Patent Document 1 discloses that the display magnification is increased as the position closer to the pointer with respect to the numerical value or scale indicating the internal speed of the meter, and the display magnification as the position farther from the pointer. An in-vehicle display device that reduces the size is shown.

JP 2010-266288 A

  However, in the conventional vehicular display device, the numerical value and the scale display magnification are locally changed, so that the shape of the meter is greatly deformed and is difficult to see.

  The present invention has been made in view of the above-described circumstances, and an object thereof is to provide a vehicle display device that can improve the visibility of an instrument image and intuitively grasp the value of the instrument.

In order to achieve the above-described object, the vehicle display device according to the present invention is characterized by the following (1) to (4).
(1) A vehicle display device in which an instrument image is displayed on a screen,
Get multiple types of vehicle driving data,
The instrument image includes a plurality of meter images each imitating a meter that is displayed on a part of the screen and indicates the value of the corresponding traveling data among the plurality of types of traveling data, and the plurality of meter images. And a background image displayed on a part of the screen,
Displaying the plurality of meter images and the background image at the same display magnification according to the value of one of the plurality of types of travel data ;
A display device for a vehicle.
(2) A vehicle display device in which an instrument image is displayed on a screen,
Get multiple types of vehicle driving data,
The instrument image includes a plurality of meter images each imitating a meter that is displayed on a part of the screen and indicates the value of the corresponding traveling data among the plurality of types of traveling data, and the plurality of meter images. And a background image displayed on a part of the screen,
Displaying the plurality of meter images at the same display magnification according to the value of one of the plurality of types of travel data, and displaying the background image at a constant display magnification.
A display device for a vehicle.
(3) A vehicle display device in which an instrument image is displayed on a screen,
Get multiple types of vehicle driving data,
The instrument image includes a plurality of meter images each imitating an instrument that is displayed on a part of the screen and indicates a value of the corresponding traveling data among the plurality of types of traveling data,
A meter image indicating a value of one traveling data among the plurality of types of traveling data among the plurality of meter images is displayed at a display magnification corresponding to the value of the one traveling data, and the plurality of meters A meter image indicating a value of travel data other than the one travel data in the image is displayed at a constant display magnification.
A display device for a vehicle.
(4) the plurality of types of traveling data includes speed or engine speed of the vehicle,
The vehicle display device according to any one of (1) to (3) above, wherein

According to the vehicle display device having the configuration (1), the instrument image changes in accordance with the value of the travel data. Therefore, the visibility of the instrument can be improved and the instrument value can be grasped intuitively. For example, when applied to a speedometer, visibility is improved even when the vehicle is traveling at high speed, and the current speed can be understood. Thereby, safety is improved.
In addition, since the meter image imitating the instrument and the background image are enlarged / reduced at the same display magnification, a change in the instrument image can be easily recognized.
According to the vehicular display device having the configuration (2), the size of the meter image imitating the instrument only changes, so that the viewer does not feel uncomfortable in the entire instrument image.
According to the vehicle display device of (3) above, by intuitively grasping the instrument whose value of the instrument is changing by changing the size of the image imitating the instrument whose traveling data is changing Can do.
According to the vehicular display device having the configuration (4), it is possible to display an instrument image suitable not only for the speed but also for a driver who places importance on the engine speed.

  According to the present invention, since the instrument image instructed by the travel data is changed according to the value of the travel data, the visibility of the instrument image can be improved and the value of the instrument can be grasped intuitively. Therefore, when applied to a speedometer, visibility is improved even when traveling at high speed, and the current speed can be understood. Thereby, safety is improved.

  The present invention has been briefly described above. Further, the details of the present invention will be further clarified by reading through a mode for carrying out the invention described below (hereinafter referred to as “embodiment”) with reference to the accompanying drawings. .

FIG. 1 is a block diagram illustrating a hardware configuration of a graphic meter 100 that is a display device for a vehicle according to an embodiment. FIG. 2 is a flowchart showing a meter enlargement / reduction display operation procedure. Each of FIG. 3A to FIG. 3C is a diagram showing a graphic display screen in which the meter image 166 changes according to the speed. Each of FIG. 4A to FIG. 4C is a diagram showing a graphic display screen on which the meter image 166A in the modified example changes. FIGS. 5A and 5B are diagrams showing another graphic display screen in which one of the speedometer and the tachometer changes.

  A vehicle display device according to an embodiment of the present invention will be described with reference to the drawings. The vehicle display device of the present embodiment is applied to a graphic meter installed on an instrument panel in a vehicle interior.

  FIG. 1 is a block diagram illustrating a hardware configuration of a graphic meter 100 that is a display device for a vehicle in the embodiment. The graphic meter 100 includes a CPU 110, a graphic CPU 130, a liquid crystal display 150, and a memory (EEPROM) 117.

  The CPU 110 includes a ROM 112, a RAM 113, and a network unit (CAN) 115. The ROM 112 stores a control program and the like. The RAM 113 is used as a work area.

  The network unit 115 communicates with other devices via the communication I / F 124 in accordance with a CAN (Controller Area Network) standard, and inputs various types of vehicle information. Further, the network unit 115 inputs information such as a speed sensor 142, an engine speed sensor 144, and a meter enlargement / reduction function switch (SW) 146, which are other devices connected to the communication I / F 124. The speed sensor 142 detects the speed of the vehicle (vehicle speed). The engine speed sensor 144 detects the engine speed. The meter enlargement / reduction function SW146 is a switch (for example, a steering switch) that can be operated by a driver or the like, and turns on or off execution of a meter enlargement / reduction function described later.

  A signal of an ignition switch (IGN +) is input to the CPU 110 via an input interface (I / F) 122. The CPU 110 is connected to a power supply circuit 121 that is supplied with power from the battery (+ B) and outputs a power supply voltage Vcc and a reset voltage.

  The graphic CPU 130 displays graphic elements on the screen of the liquid crystal display 150 in accordance with a command input from the CPU 110. The graphic CPU 130 is connected to a ROM 132 that stores a graphic drawing program and a RAM 133 that is a frame memory that holds display contents for each pixel.

  Actually, the CPU 110 writes display data to the RAM 133, and the graphic CPU 130 executes a meter enlargement / reduction function described later using the display data written to the RAM 133, and gives the generated display data to the liquid crystal display 150. To draw graphics. Further, the graphic CPU 130 generates a vertical synchronization signal and a horizontal synchronization signal for two-dimensionally scanning the screen of the liquid crystal display 150. The display data is given to the liquid crystal display 150 at a timing synchronized with these synchronization signals.

  The liquid crystal display 150 (display unit) has a color two-dimensional display screen (graphic display screen) in which a large number of minute display cells configured by a liquid crystal device are arranged in the X direction and the Y direction. The liquid crystal display 150 graphically displays various types of information such as figures, characters, and images on the two-dimensional display screen by individually controlling the display state of a large number of micro display cells for each cell.

  The display operation of the graphic meter 100 having the above configuration will be described. FIG. 2 is a flowchart showing a meter enlargement / reduction display operation procedure. This operation program is stored in the ROM 112 in the CPU 110 and is executed by the CPU 110.

  CPU110 acquires the driving | running | working data of a vehicle (step S1). In the present embodiment, the speed detected by the speed sensor 142 and the engine speed detected by the engine speed sensor 144 are acquired as vehicle travel data.

  Further, the CPU 110 determines the state of the meter enlargement / reduction function SW146 (step S2). When the meter enlargement / reduction function SW146 is on, the CPU 110 executes the meter enlargement / reduction function so as to perform meter display in accordance with the traveling data of the vehicle (step S3). In the meter enlargement / reduction function, an enlargement / reduction process of the meter image 166 displayed on the graphic display screen of the liquid crystal display 150 is executed.

  FIG. 3A to FIG. 3C are diagrams showing graphic display screens in which the meter image 166 changes according to the speed. In the present embodiment, a meter image 166 (instrument image) including a speedometer 162, a tachometer 164, and a background plate 165 is displayed on the graphic display screen of the liquid crystal display 150. The speedometer 162 and the tachometer 164 are circular instrument images. On the other hand, the background plate 165 is a background image having a substantially rectangular shape whose upper part is an arc. Here, a case where the size of the meter image 166 changes in accordance with the speed is shown.

  As shown in FIG. 3A, when the speed is low, a slightly small meter image 166 is displayed on the graphic display screen. When the speed increases, as shown in FIG. 3B, the meter image 166 maintains the overall shape, that is, the speedometer 162, the tachometer 164, and the background plate 165 are at the same display magnification. It is displayed a little enlarged. Further, when the speed increases, as shown in FIG. 3C, the meter image 166 maintains the overall shape, that is, the speedometer 162, the tachometer 164, and the background plate 165 have the same display magnification. Is displayed large on the graphic display screen. In this case, the meter image 166 is not deformed and only changes in size, so that the viewer does not feel uncomfortable.

  Thus, CPU110 returns to the process of step S1, after performing a meter expansion / contraction function in step S3. On the other hand, when the meter enlargement / reduction function SW146 is off in step S2, the CPU 110 returns to the process of step S1 without executing the meter enlargement / reduction function.

  In the present embodiment, the case where the size of the meter image 166 changes according to the speed is shown, but the size of the meter image 166 may change according to the engine speed. Thereby, not only the speed but also a meter display suitable for a driver who attaches importance to the engine speed is possible. Further, it may be possible for the driver or the like to set in advance whether to match the speed or the engine speed by using the meter enlargement / reduction function SW146, which improves usability for the driver.

(Modification)
Each of FIG. 4A to FIG. 4C is a diagram showing a graphic display screen on which the meter image 166A in the modified example changes. The modification shows a case where the enlargement / reduction function is applied only to the inside of the meter rings 162a and 164a. That is, as shown in FIGS. 4 (A), 4 (B), and 4 (C), the speedometer 162A and the tachometer 164A having the meter rings 162a and 164a as outer shapes become larger as the speed increases. Thus, in FIG. 4C, the speedometer 162A and the tachometer 164A are displayed in a full screen with the gap between them being reduced. On the other hand, the background plate 165A is displayed in the screen without changing its shape.

  In the case of the modification, the meter image 166A may be changed in accordance with the engine speed instead of the speed. Thus, since only the speedometer 162A and the tachometer 164A having the meter rings 162a and 164a as outer shapes are enlarged / reduced, a novel display becomes possible.

  According to the vehicle display device of the present embodiment, the size of the meter image changes according to the speed of the vehicle or the engine speed (value of travel data), so that the visibility of the meter image is improved and the meter The value can be grasped intuitively. Therefore, when applied to a speedometer, visibility is improved even when traveling at high speed, and the current speed can be understood. Thereby, safety is improved.

  In addition, since both the speedometer and the tachometer and their background plates change, it becomes easy to recognize the change in the meter image.

  The technical scope of the present invention is not limited to the embodiment described above. The above-described embodiments can be accompanied by various modifications and improvements within the technical scope of the present invention.

  For example, in the above-described embodiment, both the speedometer and the tachometer are changed in the same manner, but only one of them may be changed or may be changed so as to be different from each other. FIGS. 5A and 5B are diagrams showing another graphic display screen in which one of the speedometer and the tachometer changes. As shown in FIG. 5A, when the meter image is changed in accordance with the speed, the size of the speedometer 162B greatly changes as the speed increases. On the other hand, the size of the tachometer 164B does not change. As shown in FIG. 5B, when the meter image is changed in accordance with the engine speed, the size of the tachometer 164C greatly changes as the engine speed increases. On the other hand, the size of the speedometer 162C does not change.

  Thus, by intuitively grasping the value of the meter, it is possible to enlarge or reduce only the meter whose traveling data changes and to change its size.

  INDUSTRIAL APPLICABILITY The present invention is useful because it can express vehicle driving data sensuously in a vehicle display device.

Here, the features of the above-described embodiment of the vehicle display device according to the present invention are summarized and listed in the following [1] to [4], respectively.
[1] A vehicle display device in which an instrument image is displayed on a screen,
Obtaining vehicle travel data (speed sensor 142, engine speed sensor 144);
An instrument image (meter image 166) for instructing the travel data is displayed at a display magnification corresponding to the value of the travel data (liquid crystal display 150).
A display device for a vehicle.
[2] The instrument image includes an image (speedometer 162, tachometer 164) imitating at least one instrument, and a background image (background plate 165),
Of the instrument image, the image imitating the instrument, or the image imitating the instrument and the background image are displayed at a display magnification according to the value of the travel data.
The vehicle display device according to [1], which is characterized in that
[3] Of the plurality of images imitating the instrument, the one in which the travel data changes is displayed at a display magnification according to the value of the travel data.
The vehicle display device according to [2], which is characterized in that
[4] The travel data is a speed of the vehicle or an engine speed.
The vehicle display device according to any one of [1] to [3], wherein:

100 graphic meter 110 CPU
112, 132 ROM
113, 133 RAM
117 EEPROM
121 Power supply circuit 122 Input I / F
124 Communication I / F
130 Graphic CPU
142 Speed sensor 144 Engine speed sensor 146 Meter expansion / contraction function switch (SW)
150 Liquid crystal display 162, 162A, 162B, 162C Speedometer 162a, 164a Metering 164, 164A, 164B, 164C Tachometer 165 Background plate 166 Meter image

Claims (4)

A vehicle display device in which an instrument image is displayed on a screen,
Get multiple types of vehicle driving data,
The instrument image includes a plurality of meter images each imitating a meter that is displayed on a part of the screen and indicates the value of the corresponding traveling data among the plurality of types of traveling data, and the plurality of meter images. And a background image displayed on a part of the screen,
Displaying the plurality of meter images and the background image at the same display magnification according to the value of one of the plurality of types of travel data ;
A display device for a vehicle. A vehicle display device in which an instrument image is displayed on a screen,
Get multiple types of vehicle driving data,
The instrument image includes a plurality of meter images each imitating a meter that is displayed on a part of the screen and indicates the value of the corresponding traveling data among the plurality of types of traveling data, and the plurality of meter images. And a background image displayed on a part of the screen,
Displaying the plurality of meter images at the same display magnification according to the value of one of the plurality of types of travel data, and displaying the background image at a constant display magnification.
A display device for a vehicle. A vehicle display device in which an instrument image is displayed on a screen,
Get multiple types of vehicle driving data,
The instrument image includes a plurality of meter images each imitating an instrument that is displayed on a part of the screen and indicates a value of the corresponding traveling data among the plurality of types of traveling data,
A meter image indicating a value of one traveling data among the plurality of types of traveling data among the plurality of meter images is displayed at a display magnification corresponding to the value of the one traveling data, and the plurality of meters A meter image indicating a value of travel data other than the one travel data in the image is displayed at a constant display magnification.
A display device for a vehicle. The plurality of types of traveling data includes speed or engine speed of the vehicle,
The vehicular display device according to any one of claims 1 to 3, wherein

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