JP6322367B2 - Vehicle display device - Google Patents

Description

  The present invention relates to a vehicle display device.

  2. Description of the Related Art Conventionally, a graphic meter that displays an automobile meter as an image on a display device such as a liquid crystal display and controls the image display is known.

  As this type of prior art, Patent Document 1 discloses that an image representing a shift position is displayed on a meter constituted by a display device.

  Patent Document 2 discloses that a position switching animation is displayed in accordance with the operation of the shift lever.

  Patent Document 3 shows that the seat belt warning mark is displayed so as to move.

JP 2009-41987 JP 2009-73217 A JP 2012-001029 A

  However, the conventional vehicle display device lacks freshness simply by displaying an image representing the shift position (hereinafter referred to as a shift indicator). Further, since the shift indicator is an image having a small display size, there is a slight difficulty when the driver confirms the shift operation on the screen.

  The present invention has been made in view of the above-described circumstances, and the object thereof is to allow the driver to easily visually recognize the display target even if the size of the display target displayed on the display surface is small. An object of the present invention is to provide a vehicle display device that can add a fresh taste to a display object.

In order to achieve the above-described object, the vehicle display device according to the present invention is characterized by the following (1) to ( 5 ).
(1) and a display unit in which various information is displayed on the table示面,
A control unit for controlling display contents displayed on the display unit;
With
When the control unit detects a signal that changes the content of the information displayed in the display target that is always displayed on the display unit that is a part of the display content, the control unit displays the information displayed in the display target. Change the contents, and then move the display object that displays the information after the change to a predetermined position different from that before the detection of the signal, and then move to the original position that was displayed before the detection. Ru is,
about.
(2) The vehicle display device having the configuration of (1) above,
The path along which the display object moves to the predetermined position is the same as the path along which the display object moves to the original position.
about.
(3) A vehicle display device having the configuration of (1) above,
The route that the display object moves to the predetermined position is different from the route that the display object moves to the original position.
about.
(4) The vehicle display device having any one of the constitutions (1) to (3),
The signal for changing the display object is a signal notifying that the shift position has been changed,
The display object is an image representing a shift position.
about.
(5) a display unit on which various information is displayed on the display surface;
A control unit for controlling display contents displayed on the display unit;
With
When the control unit detects a signal that changes the content of the information displayed in the display target that is always displayed on the display unit that is a part of the display content, the control unit displays the information displayed in the display target. Change the contents, and then continuously move the display object that displays the information after the change toward a predetermined position different from that before the detection of the signal, and then the original that was displayed before the detection Move continuously to the position,
The original position is a position inside an instrument displayed at a position near one end in the width direction on the display surface, and the predetermined position is a substantially center position in the width direction on the display surface. And a position outside the instrument,
The continuous movement path of the center position of the display object passes through the blank area on the display surface while bending so as to avoid the display object displayed on the display surface in the area outside the instrument. Set,
about.

According to the vehicle display device having the configurations (1) to (5) , the display object is moved toward a predetermined position different from that before detection of the signal, and is moved to a predetermined position different from that before detection. After that, it is moved to the original position displayed before detection.

  According to the present invention, the display object is moved toward a predetermined position different from that before detection of the signal, moved to a predetermined position different from that before detection, and then moved to the original position displayed before detection. Since it moves, even if the size of the display object displayed on a display surface is small, a driver | operator can visually recognize a display object easily, and also can add a fresh taste to a display object.

  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 diagram illustrating a hardware configuration of a graphic meter 100 according to the embodiment. FIG. 2 is a diagram showing the shift position of the shift lever 73 detected by the shift position sensor 71. FIG. 3 is a diagram showing a graphic display screen 111 a displayed on the liquid crystal display 111 of the graphic meter 100. FIG. 4 is a flowchart showing a display operation procedure of the shift indicator 75. FIG. 5A to FIG. 5C are diagrams showing the transition of the shift indicator 75 when a shift operation is performed. FIGS. 6A and 6B are diagrams illustrating a path 93 when the shift indicator 75 is returned to the original position in the tachometer 51. FIG.

  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 diagram illustrating a hardware configuration of the graphic meter 100 according to the embodiment. As shown in FIG. 1, the graphic meter 100 includes a microcomputer (CPU: Central Processing Unit) 101, a read-only memory (EEPROM) 102, an interface 103, an interface 104, a CPU power supply unit 105, a graphic A controller 106, a frame memory 107, an X driver 108, a Y driver 109, an LCD (Liquid Crystal Display) power supply unit 110, and a liquid crystal display (TFT-LCD: Thin Film Transistor Liquid Crystal Display) 111 are provided.

  A microcomputer (CPU) 101 executes a program prepared in advance and performs various processes necessary for realizing the function of the graphic meter 100. For example, the microcomputer 101 (control unit) performs processing shown in a flowchart described later.

  A read only memory (EEPROM) 102 holds the contents of a program executed by the microcomputer 101, image data such as a meter initial image prepared in advance, fixed data, and the like. In addition, the EEPROM 102 has a shift indicator 75 that indicates the shift position (shift position) of parking, back, neutral, drive, and low by the characters “P”, “R”, “N”, “D”, and “L”, respectively. The images shown in FIGS. 5A to 5C are registered.

  The interface 103 inputs a signal (IGN +) indicating the state of the ignition switch on the vehicle side to the microcomputer 101.

  The interface 104 is used for communication according to a CAN (Controller Area Network) standard between the microcomputer 101 and various control devices (ECU: Electric Control Unit) on the vehicle side. Specifically, data representing various current vehicle conditions such as the current vehicle running speed, engine rotation speed, cooling water temperature, fuel amount, and whether or not the clutch is connected is transmitted from the vehicle side to the interface 104 as almost real-time data. To the microcomputer 101.

  For example, the interface 104 receives a vehicle speed pulse signal output from a speed sensor mounted on the vehicle side every time the vehicle moves by a predetermined amount, and the microcomputer 101 as travel speed information indicating the current travel speed value of the vehicle. Output to.

  The interface 104 receives a pulse signal output from an engine speed (NE) sensor that detects the engine speed, and outputs the pulse signal as engine speed information to the microcomputer 101. The interface 104 receives information on the fuel amount detected by the fuel sensor and outputs the information to the microcomputer 101. The interface 104 receives a signal from a water temperature sensor that detects the temperature of the cooling water in the radiator, and outputs the signal to the microcomputer 101 as cooling water temperature information.

  The interface 112 receives a signal from the shift position sensor 71 that detects the shift position of the shift lever 73 (see FIG. 2), and outputs information representing the shift position to the microcomputer 101. FIG. 2 is a diagram showing the shift position of the shift lever 73 detected by the shift position sensor 71.

  The CPU power supply unit 105 inputs DC power supplied from the vehicle-side plus-side power supply line (+ B) and generates a DC voltage (Vcc) necessary for the operation of the microcomputer 101. Further, a reset signal is generated as necessary, and an operation for suppressing power supply is performed in accordance with a sleep signal output from the microcomputer 101.

  The liquid crystal display 111 has a color two-dimensional display screen in which a large number of minute display cells constituted by liquid crystal devices are arranged in the X direction and the Y direction. By individually controlling the display states of a large number of minute display cells for each cell, desired information such as graphics, characters, images, etc. can be displayed on the two-dimensional display screen.

  The liquid crystal display 111 (display unit) displays a graphic display screen (display surface) 111a of a graphic meter (also simply referred to as a meter) 100 by two-dimensional screen display.

  FIG. 3 is a diagram showing a graphic display screen 111 a displayed on the liquid crystal display 111 of the graphic meter 100. The graphic display screen 111a includes a first display area (left area in the figure) 31, a second display area (center area in the figure) 32, and a third display area (different in the displayed areas). In the figure, it is roughly divided into a right region 33).

  In the first display area 31, a speedometer 41 that displays the current traveling speed of the vehicle and a fuel gauge 42 that displays the current fuel amount are displayed so as to partially overlap. The speedometer 41 includes a speed scale 45, a pointer 46, a distance meter 44, and a decoration ring 43, and the pointer 46 indicates a scale position on the speed scale 45, thereby representing the current traveling speed of the vehicle.

  The fuel gauge 42 includes a fuel amount scale 47, a pointer 48, and a decoration ring 49, and the pointer 48 indicates a position on the fuel amount scale 47 to indicate the current remaining fuel amount.

  The second display area 32 is an area in which various images are displayed in a switchable manner. In the second display area 32, an image (vehicle image) 61 that simulates a vehicle viewed from the upper front is normally displayed as a default image. In addition, a left turn signal 65 and a right turn signal 66 are displayed above the second display area 32.

  In the third display area 33, a tachometer 51 that displays the current engine speed and a water temperature meter 52 that displays the current cooling water temperature are displayed so as to partially overlap. The tachometer 51 has a rotation speed scale 55, a pointer 56, and a decoration ring 54, and the pointer 56 indicates a scale position on the rotation speed scale 55, thereby displaying the current rotation speed of the engine. In addition, a shift indicator 75 described later is displayed in the decorative ring 54 that is a part of the tachometer 51.

  The water temperature meter 52 displays a temperature scale 57, a pointer 58, and a decoration ring 59, and the pointer 58 indicates a position on the temperature scale 57 to indicate the current cooling water temperature.

  The scanning position in the Y direction on the display screen of the liquid crystal display 111 is sequentially switched by the output of the Y driver 109. The Y driver 109 sequentially switches the scanning position in the Y direction in synchronization with the vertical synchronization signal output from the graphic controller 106.

  The X driver 108 sequentially switches the scanning position in the X direction on the display screen of the liquid crystal display 111 in synchronization with the horizontal synchronization signal output from the graphic controller 106. In addition, the X driver 108 gives RGB color image data output from the graphic controller 106 to the display cell at the scanning position to control the display contents on the screen.

  The scanning position in the Y direction on the display screen of the liquid crystal display 111 is sequentially switched by the output of the Y driver 109. The Y driver 109 sequentially switches the scanning position in the Y direction in synchronization with the vertical synchronization signal output from the graphic controller 106.

  The X driver 108 sequentially switches the scanning position in the X direction on the display screen of the liquid crystal display 111 in synchronization with the horizontal synchronization signal output from the graphic controller 106. The X driver 108 controls the display contents on the screen by giving the RGB color image data output from the graphic controller 106 to the display cell at the scanning position.

  The graphic controller 106 displays various graphic elements on the screen of the liquid crystal display 111 according to various instructions input from the microcomputer 101. In practice, the microcomputer 101 or the graphic controller 106 writes display data to the frame memory 107 that holds the display contents for each pixel and draws the graphic.

  In addition, the graphic controller 106 generates a vertical synchronization signal and a horizontal synchronization signal for two-dimensional scanning of the screen of the liquid crystal display 111, and stores it at a corresponding address on the frame memory 107 at a timing synchronized with these synchronization signals. The displayed display data is given to the liquid crystal display 111.

  The LCD power supply unit 110 receives DC power supplied from the positive power line (+ B) on the vehicle side, generates predetermined DC power required for display on the liquid crystal display 111, and the liquid crystal display 111. Etc.

  The graphic controller 106 displays various graphic elements on the screen of the liquid crystal display 111 according to various instructions input from the microcomputer 101. Actually, the microcomputer 101 or the graphic controller 106 writes the display data to the frame memory 107 that holds the display contents for each pixel and draws the graphic. In addition, a vertical synchronizing signal and a horizontal synchronizing signal for two-dimensionally scanning the screen of the liquid crystal display 111 are generated, and display data stored at a corresponding address on the frame memory 107 at timing synchronized with these synchronizing signals. Is applied to the liquid crystal display 111.

  The LCD power supply unit 110 receives DC power supplied from the vehicle-side plus power supply line (+ B) and generates predetermined DC power required for display on the liquid crystal display 111.

  The display operation of the graphic meter 100 having the above configuration will be described. When the ignition switch is turned on, a DC voltage (Vcc) is supplied to the microcomputer 101. The microcomputer 101 starts display control of various information in the first display area 31 to the third display area 33 in the graphic display screen 111a.

  The microcomputer 101 acquires vehicle data such as travel speed, engine speed, fuel amount, and cooling water temperature via the interface 104, and based on these vehicle data, the speedometer 41, the tachometer 51, and the fuel gauge 42. And the water temperature gauge 52 is drawn.

  Further, the microcomputer 101 calculates a travel distance obtained by multiplying the acquired travel speed and travel time, and includes a distance including an ODO value (integrated travel distance) and a TRIP value (travel distance) obtained from the travel distance. A total (ODO / TRIP meter) 44 is drawn.

  Further, the microcomputer 101 inputs the shift position of the shift lever 73 detected by the shift position sensor 71 via the interface 112, and draws the shift indicator 75, which is an image representing this shift position, in the tachometer 51. . Here, the shift indicator 75 is drawn inside the decorative ring 54 that is a part of the tachometer 51 and below the center. The shift indicator 75 (display target) includes a character 75a representing a shift position and a square frame 75b surrounding the character 75a. In FIG. 3, the character 75a is set to “D” meaning a drive.

  FIG. 4 is a flowchart showing a display operation procedure of the shift indicator 75. This operation program is stored in the read-only memory 102 and is executed by the microcomputer (CPU) 101.

  The microcomputer 101 determines whether or not a shift operation is performed by the driver and a signal for changing the shift position is notified from the shift position sensor 71 via the interface 112 (step S1). If the shift operation is not performed, the microcomputer 101 returns to the process of step S1.

  FIGS. 5A to 5C are diagrams showing the transition of the shift indicator 75 when a shift operation is performed. As shown in FIG. 5 (A), before the shift operation is started, the shift indicator 75 is in the decoration ring 54 of the tachometer 51 as the original position before the movement. Here, the shift position is neutral, and the character 75a which is a part of the shift indicator 75 is set to “N” meaning neutral.

  On the other hand, when the shift operation is performed in step S1, the microcomputer 101 detects the shift position by the shift position sensor 71 and recognizes the operation direction of the shift lever 73 (step S2).

  When the shift position is changed from neutral to drive, the microcomputer 101 changes the letter 75a, which is a part of the shift indicator 75, from “N” to “D” as shown in FIG. 5B. The animation display process is started (step S3). In this animation display process, the microcomputer 101 moves the shift indicator 75 to a substantially central position (predetermined position) on the graphic display screen 111a outside the tachometer 51 along the path 91, for example. This substantially central position is a position where the driver's eyes are likely to concentrate. At this time, the microcomputer 101 slightly lowers the position of the vehicle image 61 to widen the area where the shift indicator 75 is accommodated.

  The microcomputer 101 determines whether or not the shift indicator 75 has reached a predetermined position (step S4). If not, the microcomputer 101 returns to the process of step S3. On the other hand, when the shift indicator 75 reaches a predetermined position, as shown in FIG. 5C, the animation display process for moving the shift indicator 75 is stopped (step S5).

  Then, the microcomputer 101 determines whether or not a certain time has elapsed after the shift indicator 75 reaches a predetermined position (step S6). If the certain time has not elapsed, the microcomputer 101 returns to the process of step S5.

  On the other hand, when a certain time has elapsed, the microcomputer 101 resumes the animation display process, and performs a process of moving the shift indicator 75 to the original position in the tachometer 51 along the same route 91 as the going route 91 ( Step S7). At this time, the character 75a, which is a part of the shift indicator 75 moved to the original position, remains “D” meaning drive.

  FIGS. 6A and 6B are diagrams illustrating a path 93 when the shift indicator 75 is returned to the original position in the tachometer 51. As shown in FIG. 6A, the return path 93 may be the same as the outbound path 91. That is, the shift indicator 75 moves along the same route both on the way and back. If the outbound and return routes are the same, it can be understood as a natural movement. Further, as shown in FIG. 6B, the return route 93 may be a route different from the going route 91. When the going and returning routes are different, it is possible to give the driver a fresh impression when moving the shift indicator 75.

  Here, it is desirable that the paths 91 and 93 are set so as to pass through a blank area while avoiding a portion where the character 75a is difficult to visually recognize or a portion overlapping a scale or the like as much as possible during movement. Thereby, the visibility of a shift indicator and a meter is ensured.

  As described above, according to the graphic meter 100 of the present embodiment, the driver can be alerted by moving the shift indicator displayed on the graphic display surface even if the size of the shift indicator is small. As a result, the driver can visually recognize the shift indicator, and freshness can be added to the shift indicator.

  In addition, since the shift indicator stays at a predetermined position as the destination for a certain period of time and then returns to the original position, after making the driver visually recognize the shift position, do not tie the driver's line of sight more than necessary. That's it. Further, the current shift position (shift position) can be surely recognized by the driver, and an operation error can be prevented.

  In addition, since the driver's line of sight of the driver seated in the driver's seat is first directed to the predetermined position where the shift indicator is moved and is substantially at the center of the graphic display surface, the driver's line of sight can be easily collected and visibility is improved. Moreover, since the position of the shift indicator from which the shift indicator is moved is inside the decorative ring that is a part of the tachometer, it is suitable as a home position.

  The present invention is not limited to the configuration of the above-described embodiment, and any configuration that can achieve the function of the configuration of the present embodiment is applicable.

  For example, in the above-described embodiment, the forward and backward paths for the shift indicator to move are set in advance, but may be set to an arbitrary path by an instruction from the operation switch or the like by the driver. The route may be set by irregularly determining the route connecting the start point and the end point by the microcomputer.

  Further, when the shift indicator is moved, it may be moved at a constant speed or may be moved at a different speed. For example, the visibility during movement may be ensured by increasing the moving speed at a position where the shift indicator overlaps a scale or the like, and by decreasing the moving speed at a blank area.

  Further, in the above embodiment, when the shift indicator is returned to the original position in the instrument, it is moved along a predetermined route, but instead of being moved along the route, it is switched in an instant, that is, The shift indicator displayed at the predetermined position may be turned off, and at the same time, the shift indicator may be displayed at the original position to return to the original position. Thereby, the movement time does not become longer than necessary.

  Further, in the above-described embodiment, the predetermined position, which is the movement destination of the shift indicator, is approximately the center of the graphic display surface. However, since the driver can easily notice only by moving the shift indicator, any position in the graphic display surface can be obtained. It may be a position, for example a peripheral edge.

  In the above-described embodiment, the image representing the shift position is shown as the display target displayed on the graphic display surface. However, the present invention is also applicable to various warning images, images representing lighting of the headlamps, and the like. It can be applied and the same effect can be obtained.

  INDUSTRIAL APPLICABILITY The present invention is useful in a display device for a vehicle, even if the size of the display object is small, the driver can easily visually recognize the display object, and can add a fresh taste to the display object.

31 First display region 32 Second display region 33 Third display region 41 Speedometer 42 Fuel meter 43, 49, 54, 59 Decoration ring 44 Distance meter 45 Speed scale 46, 48, 56, 58 Pointer 47 Fuel amount Scale 51 Tachometer 52 Water thermometer 55 Rotational speed scale 57 Temperature scale 61 Vehicle image 65 Left turn signal 66 Right turn signal 71 Shift position sensor 73 Shift lever 75 Shift indicator 75a Character 75b Square frame 91, 93 Route 100 Graphic meter 101 Microcomputer 102 Reading Dedicated memory 103, 104, 112 Interface 105 CPU power supply unit 106 Graphic controller 107 Frame memory 108 X driver 109 Y driver 110 LCD power supply unit 111 Liquid crystal display 11 a graphic display screen

Claims (5)

A display unit which various information is displayed on the table示面,
A control unit for controlling display contents displayed on the display unit;
With
When the control unit detects a signal that changes the content of the information displayed in the display target that is always displayed on the display unit that is a part of the display content, the control unit displays the information displayed in the display target. Change the contents, and then move the display object that displays the information after the change to a predetermined position different from that before the detection of the signal, and then move to the original position that was displayed before the detection. Ru is,
A display device for a vehicle. The path along which the display object moves to the predetermined position is the same as the path along which the display object moves to the original position.
The vehicular display device according to claim 1. The route that the display object moves to the predetermined position is different from the route that the display object moves to the original position.
The vehicular display device according to claim 1. The signal for changing the display object is a signal notifying that the shift position has been changed,
The display object is an image representing a shift position.
The vehicular display device according to any one of claims 1 to 3. A display unit for displaying various information on the display surface;
A control unit for controlling display contents displayed on the display unit;
With
When the control unit detects a signal that changes the content of the information displayed in the display target that is always displayed on the display unit that is a part of the display content, the control unit displays the information displayed in the display target. Change the contents, and then continuously move the display object that displays the information after the change toward a predetermined position different from that before the detection of the signal, and then the original that was displayed before the detection Move continuously to the position,
The original position is a position inside an instrument displayed at a position near one end in the width direction on the display surface, and the predetermined position is a substantially center position in the width direction on the display surface. And a position outside the instrument,
The continuous movement path of the center position of the display object passes through the blank area on the display surface while bending so as to avoid the display object displayed on the display surface in the area outside the instrument. Set,
A display device for a vehicle.

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