JP2006264615A - Vehicle display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device for a vehicle that makes it easy to access switches on a steering wheel even when a steering angle changes.
SOLUTION: A plurality of switches 21 to 26 arranged on a steering wheel, a display means 16 capable of displaying the arrangement of the plurality of switches, a steering angle detecting means 11 for detecting a steering angle of the steering, and a steering angle detecting means. There is provided a display device for a vehicle, characterized by comprising display control means 15 for changing the display of a plurality of switches displayed on the display means in accordance with the detected steering angle.
[Selection] Figure 3

Description

  The present invention relates to a vehicle display device mounted on a vehicle, and more particularly to a vehicle display device that facilitates access to a steering switch.

  Near the driver's seat of the vehicle, various switches and operation buttons (hereinafter simply referred to as switches) for operating the on-board equipment are arranged. However, when operating the switches during operation, the switches cannot be visually observed, and it is necessary to search for the switches by groping.

  For this reason, an invention has been proposed in which switches that are frequently used among the switches are provided on the steering wheel (see, for example, Patent Document 1). Japanese Patent Application Laid-Open No. 2005-228561 describes an automobile display device in which operation buttons of a car navigation system (hereinafter simply referred to as “car navigation”) are provided on a steering wheel, and a map screen can be scrolled from the steering wheel. In the automobile display device, the operation direction of the scroll switch with respect to the vehicle body and the moving direction of the image can be made equal regardless of the steering angle of the steering wheel.

Further, there has been proposed a vehicle switch that allows a driver to easily access target switches without moving his / her line of sight and confirms that the accessed switches are correctly operated (see, for example, Patent Document 2). .) According to the vehicle switch, a guide display simulating switches for guiding operations is displayed on the front window, and a switch on the steering wheel actually touched by the driver is highlighted or selected on the guide display. By highlighting the selected switch, it becomes easy to access the target switch and the operation result can be confirmed.
JP 2001-66143 A JP-A-5-77679

  However, the automobile display device described in Patent Document 1 does not describe the operation of the steering switch other than the scroll key, and causes a problem that the operability of the steering switch is lowered when the steering wheel is rotated.

  Further, in the vehicle switch described in Patent Document 2, when the driver operates the steering wheel, the consistency between the switches on the steering wheel and the operation panel displayed on the front window is not described.

  FIG. 1 shows the switches 50 on the steering wheel 101 and the switches of the guide display 46 displayed on the front window 102. 1A shows the steering switch 50 and the guide display 46 displayed on the front window 102 when the steering wheel is not operated (hereinafter referred to as neutral), and FIG. 1B shows the operation of the steering wheel. The steering switch 50 and the guide display 46 displayed on the front window 102 at the time of steering (at the steering angle) are shown.

  When neutral, the switches 50 on the steering wheel 101 and the guide display 46 are arranged in the same manner as viewed from the driver. Therefore, the driver looks at the guide display 46 and switches the target switch of the steering wheel switch 50. Easily accessible. However, when the steering wheel 101 is steered as shown in FIG. 1B, the guide display 46 on the front window 102 and the steering switch 50 are arranged differently from the viewpoint of the driver. Sex is reduced.

  Therefore, the vehicle switch described in Patent Document 2 has a problem that when the steering wheel is operated, it is difficult to access the target switch of the steering switch 50 even if the front window is viewed.

  In view of the above problems, an object of the present invention is to provide a vehicular display device that facilitates access to switches on a steering wheel even when the steering angle of a steering wheel changes.

  In view of the above problems, the present invention provides a plurality of switches arranged on a steering wheel, display means (for example, a head-up display 16) capable of displaying the arrangement of the plurality of switches, and steering angle detection for detecting a steering angle of the steering wheel. Means (for example, steering angle sensor 11), and display control means (for example, display driver 15) for changing the display of a plurality of switches displayed on the display means in accordance with the steering angle detected by the steering angle detection means. It is characterized by having.

  According to the present invention, since the display control device changes the display content based on the steering angle, the driver can easily access the target switch based on the display on the display means even during steering. The steering switch can be operated safely. The display means is not limited to the head-up display, and any display means such as a car navigation display that can be viewed by the driver.

  Further, in one form of the vehicle display device of the present invention, when the steering is operated, the display control means is configured such that the plurality of switches displayed on the display means correspond to the plurality of switches arranged on the steering wheel. The display of a plurality of switches is changed.

  According to the present invention, even when the steering is being operated, the actual switch arrangement viewed from the driver can be associated with the switch arrangement displayed on the display means. It can be performed.

  Further, in one form of the vehicle display device of the present invention, the display control means displays an angle equivalent to the rudder angle detected by the rudder angle detection means and a plurality of switches tilted for each switch. And

  According to the present invention, since each switch displayed on the display means is rotated, the display can be changed in a space-saving manner.

  Moreover, in one form of the display apparatus for vehicles of this invention, a display control means displays the angle equivalent to the rudder angle detected by the rudder angle detection means, and inclines a several switch integrally, It is characterized by the above-mentioned. .

  According to the present invention, since the entire screen on which the switch arrangement is displayed is rotated, the display can be changed with high visibility for the driver.

  The vehicle display device according to the present invention further includes switch selection means for selecting one or more switches to be displayed on the display means from a plurality of switches, and the display control means is selected by the switch selection means. The above switches are displayed in an arrangement arranged on the steering wheel.

  According to the present invention, since the arrangement of the switch selected by the driver is displayed, the display content displayed to the driver can be simplified, and the load on the display device for the vehicle for changing the display can be reduced. Can do.

  Moreover, in one form of the display apparatus for vehicles of this invention, a display means is a head-up display, It is characterized by the above-mentioned.

  According to the present invention, since the display means is located at a position that is easier to see for the driver, the driver can identify the position of the steering switch without performing a large line of sight movement, and can operate the switch more safely.

  It is possible to provide a vehicle display device that facilitates access to switches on the steering wheel even when the steering angle changes.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to the accompanying drawings. The vehicle display device according to the present embodiment displays a guide display simulating switches on the steering wheel (hereinafter referred to as a steering switch) on a front window or the like according to the steering angle of the steering wheel.

  FIG. 2 shows a block diagram of the vehicle display device of the present embodiment. The steering wheel 1 includes a volume switch 21 that operates the volume of the audio device as a steering switch, a temperature control switch 22 that adjusts the temperature of the air conditioner, a mode switch 23 that switches the mode of the air conditioner, and a phone that makes or breaks a call with a hands-free phone. A switch 24, a display switch 25 for switching presence / absence of guide display, and a voice recognition switch 26 for operating a car navigation system or the like by voice are provided. Note that the steering switch may be any switch that operates other vehicle-mounted devices such as car navigation and audio.

  Each switch is provided with a touch sensor 12 that detects a state in which a finger is touching. The touch sensor has a well-known configuration. For example, a capacitance sensor is attached to the button surface, and when the driver touches, the capacitance changes to detect that the switch is operated.

  Each switch outputs an identification signal for identifying the switch, and the signal is input to the arithmetic circuit 14. The arithmetic circuit 14 identifies the operated switch based on the identification signal, and calculates the number of touches and the touch time of the switch.

  The steering angle sensor 11 detects the steering angle of the steering wheel 1. The rudder angle sensor 11 is configured by an encoder or the like attached to a rotating shaft (for example, a steering shaft) of the steering wheel 1.

  The pulse signal output from the steering angle sensor 11 is output to the arithmetic circuit 13. The arithmetic circuit 13 calculates the steering angle θ of the steering wheel 1 based on the pulse signal.

  The steering angle θ output from the arithmetic circuit 13 and the number of touches and the touch time of the touched switch output from the arithmetic circuit 14 are input to the display driver 15.

  The display driver 15 stores information on button shapes (icons) displayed on a head-up display (hereinafter referred to as HUD) 16 and button layout of the steering pad unit. The display driver 15 determines the display angle so that the guide display is inclined at the same angle as the steering angle θ. The display driver 15 draws the steering angle θ and the tilted guide display on the HUD 16 according to the stored button shape and button layout.

  The HUD 16 displays a guide display on a predetermined part of the front window in front of the driver, superimposed on the scenery in front of the vehicle, in accordance with a signal input from the display driver 15. Since the touched switch is displayed in reverse video or highlighted according to the number of touches or the touch time, the driver can easily access the target switch and can confirm that the accessed switch has been correctly operated.

  As described above, in the vehicle display device according to the present embodiment, when the driver operates the angle θ steering wheel 1, the guide display is also displayed with the angle θ tilted. A switch can be easily associated and recognized. Therefore, even if the driver operates the steering wheel, the driver can easily and safely access the target switch of the steering switch.

  An embodiment of a vehicle display device in which the guide display rotates at an angle equal to the steering angle of the steering wheel 1 will be described using the above configuration.

  FIG. 3A shows a guide display 30 displayed on the switches 21 to 26 of the steering switch and the HUD 16 of the front window when neutral. In FIG. 3, the same components as those in FIG.

  Since the guide display 30 is displayed so that the driver can easily access the switches 21 to 26, the guide display 30 is displayed in the same arrangement as the switches 21 to 26 of the steering switch. That is, the volume switch display 31 of the guide display 30 is the volume switch 21, the temperature control switch display 32 of the guide display 30 is the temperature control switch 22, the mode switch display 33 of the guide display 30 is the mode switch 23, and the guide display 30 is The phone switch display 34 corresponds to the phone switch 24, the display switch display 35 of the guide display 30 corresponds to the display switch 25, and the voice recognition switch display 36 of the guide display 30 corresponds to the voice recognition switch 26.

  When the steering wheel 1 rotates by an angle θ by the driver's operation from the neutral state as shown in FIG. 3A, the steering angle sensor 11 inputs a pulse signal to the arithmetic circuit 13, and the arithmetic circuit 13 controls the steering angle θ. And the display driver 15 instructs the HUD 16 to tilt the guide display by θ.

  FIG. 3B shows the steering wheel 1 operated by the angle θ and the guide display 30 in this case. The guide display 30 displayed on the HUD 16 is equal to the driver's steering angle θ and is displayed with an inclination of the angle θ. Therefore, the arrangement of the steering switches and the switches of the guide display 30 viewed from the driver can be made equal.

  According to the present embodiment, even if the driver operates the steering wheel 1, the driver recognizes the guide display and the steering switch in association with each other and can easily access the target switch, so that the operability is improved.

  In this embodiment, an embodiment of a vehicle display device in which each guide display switch rotates at an angle equal to the steering angle of the steering wheel 1 will be described.

  When the steering wheel 1 is operated by an angle θ by the driver from the neutral state as shown in FIG. 3A, the steering angle sensor 11 inputs a pulse signal to the arithmetic circuit 13, and the arithmetic circuit 13 steers. The angle θ is calculated, and the display driver 15 instructs the HUD 16 to tilt the guide display by the angle θ.

  FIG. 4 shows the steering wheel 1 operated by the angle θ and the guide display 30 in this case. 4 that are the same as those in FIG. 3B are assigned the same reference numerals, and descriptions thereof are omitted.

  Each switch of the guide display 30 displayed on the HUD 16 is displayed with an angle θ equal to the driver's steering angle θ. Therefore, the arrangement of the steering switch and the switch of the guide display 30 viewed from the driver can be made equal. Even when the driver operates the steering wheel 1, the guide display and the steering switch are recognized in association with each other and can easily access the target switch, so that the operability is improved.

  In addition, according to the present embodiment, when the switches are tilted and displayed, the outline of the guide display 30 remains fixed, so that the display area of the guide display does not change according to the rotation angle. If the display area of the guide display 30 changes, it is necessary to secure a large area for guide display. However, the display area can be reduced by tilting each switch as in this embodiment.

  In this embodiment, an embodiment of a vehicle display device that displays a guide display similar to the steering wheel at an angle equal to the steering angle of the steering wheel 1 will be described.

  When the steering wheel 1 rotates by an angle θ by the driver's operation from the neutral state as shown in FIG. 3A, the steering angle sensor 11 inputs a pulse signal to the arithmetic circuit 13, and the arithmetic circuit 13 controls the steering angle θ. And the display driver 15 instructs the HUD 16 to tilt the guide display by an angle θ.

  FIG. 5 shows the steering wheel 1 operated by the angle θ and the guide display 30 in this case. 5 that are the same as those in FIG. 3B are assigned the same reference numerals, and descriptions thereof are omitted. In FIG. 5, the switches of the guide display 30 are designed based on the shape of the steering wheel 1.

  When the steering wheel 1 is operated by the driver by the angle θ, the steering angle sensor 11 inputs a pulse signal to the arithmetic circuit 13, the arithmetic circuit 13 calculates the steering angle θ, and the display driver 15 displays the guide display at the angle θ. Instructs HUD 16 to tilt.

  Each switch of the guide display 30 displayed on the HUD 16 is displayed with an angle θ equal to the driver's steering angle θ. Therefore, even if the driver operates the steering wheel 1, the driver can easily recognize the guide display and the switches on the steering wheel 1 in association with each other and can access the target switch, so that the operability is improved.

  When the switches are tilted and displayed by the guide display 30 similar to the steering wheel 1 as in the present embodiment, in addition to the effects of the first and second embodiments, the driver can more intuitively guide the guide display 30 and the steering wheel. The wheel switch can be associated, and the operability is improved.

  In the present embodiment, a vehicle display device having switch selection means for selecting one or more switches to be displayed on the HUD 16 from a plurality of switches and displaying only the selected switch on the HUD 16 in an arrangement disposed on the steering wheel will be described. To do.

  FIG. 6 is a block diagram of the vehicle display device of the present embodiment. In FIG. 6, the same parts as those of FIG. FIG. 6 is different from FIG. 2 in that the switch selection means 17 is connected to the display driver 15.

  The switch selection means 17 permits the display driver 15 to display only the switch selected by the driver among the steering wheel switches. For example, when the driver selects a switch to be displayed on the HUD 16 from the switches of the steering wheel 1, the switch selection means 17 switches the vehicle display device to a predetermined switch selection mode by the driver's operation. The switch selection means 17 identifies the switches 21 to 26 selected and touched by the driver through the touch sensor 12 and permits the display driver 15 to display the selected switch. The display driver 15 shapes the button shape and button layout according to the selected switches and the number of switches, and displays them on the HUD 16.

  FIG. 7 shows a guide display 30 when the volume switch 21, the temperature control switch 22, and the phone switch 24 are selected from the switches 21 to 26 of the steering switch. In the guide display 30 of FIG. 7, only the volume switch display 31, the temperature control switch display 32, and the phone switch display 34 of the selected switch are displayed.

  According to the present embodiment, since the arrangement of the switch selected by the driver is displayed, the contents displayed on the HUD 16 can be simplified and the visibility is improved. Further, even when the driver steers the steering wheel 1 and the steering angle θ varies, the load applied when the display driver 15 redraws can be reduced. In FIG. 7, the entire guide display 30 is tilted and displayed as in the first embodiment, but each switch may be tilted as in the second embodiment or similar to the steering wheel 1 as in the third embodiment. The guide display 30 may be displayed.

  As described above, the display device for a vehicle according to the present embodiment can easily access the target switch of the steering switch even if the steering angle of the steering changes.

It is a figure which shows the switches on a steering wheel, and the conventional guide display displayed on a front window. It is a block diagram of a display device for vehicles. It is a figure which shows the relationship between the switches on a steering wheel and the guide display displayed on HUD of a front window. It is a figure which shows an example of the steering wheel by which angle (theta) was operated, and a guide display in this case. It is a figure which shows an example of the steering wheel by which angle (theta) was operated, and a guide display in this case. FIG. 6 is a block diagram of a vehicle display device according to a fourth embodiment. It is a figure which shows an example of the guide display on which the selected switch was displayed.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Steering wheel 11 Steering angle sensor 12 Touch sensor 13, 14 Arithmetic circuit 15 Display driver 16 Head up display 17 Switch selection means 30 Guide display

Claims (6)

A plurality of switches arranged on the steering wheel;
Display means capable of displaying an arrangement of the plurality of switches;
Steering angle detection means for detecting the steering angle of the steering;
Display control means for changing the display of the plurality of switches displayed on the display means according to the steering angle detected by the steering angle detection means;
A vehicle display device characterized by comprising: When the steering is operated, the display control unit changes the display of the plurality of switches so that the plurality of switches displayed on the display unit correspond to the plurality of switches arranged on the steering.
The vehicular display device according to claim 1. The display control means displays an angle equivalent to the steering angle detected by the steering angle detection means, and the plurality of switches are tilted for each switch,
The vehicular display device according to claim 1 or 2. The display control means displays an angle equivalent to the rudder angle detected by the rudder angle detection means, by tilting the plurality of switches together.
The vehicular display device according to claim 1 or 2. Switch selection means for selecting one or more switches to be displayed on the display means from the plurality of switches;
The display control means displays one or more switches selected by the switch selection means in an arrangement arranged on the steering;
The vehicle display device according to claim 1, wherein the display device is a vehicle display device.   The vehicle display device according to claim 1, wherein the display means is a head-up display.

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