JP4373282B2 - Vehicle display device - Google Patents

Description

  The present invention relates to a display device for a vehicle, and particularly uses a first display device whose display function is activated only in a specific state and a second display device whose display function is always activated, thereby quickly providing accurate information to the driver. It is related with the display apparatus for vehicles comprised so that it could tell to.

In order to compensate for the shortage of visual information under headlight irradiation during night driving, a night vision system using an infrared camera has been proposed in Patent Document 1, for example. In the night vision system described in Patent Document 1, the output of the infrared camera and the drawing ability of the display using the liquid crystal element are not stable immediately after starting, and the display image may be difficult to see. Unstable images are displayed by reducing the brightness of the backlight, preventing the cover from opening, or preventing the display from starting up until the normal image can be displayed after completion. I'm trying not to be.
JP 2003-237465 A

  However, according to the technique disclosed in Document 1, it is difficult for the driver to immediately discriminate between the case where it does not operate because of a failure and the case where it does not operate because it is warming up, and the reason for not operating is obvious. It may cause the driver to feel uneasy.

  The present invention has been devised with the object of eliminating such drawbacks of the prior art, and an object of the present invention is to provide a display device for a vehicle that can quickly convey accurate information to the driver. There is.

In order to solve such a problem, claim 1 of the present invention provides a first display means for displaying information related to an image captured by a camera mainly on a display provided on an instrument panel so as to be movable in and out, and a vehicle mainly. The first display means in the vehicular display device including the second display means for displaying information related to the driving situation of the vehicle is judged as being in a situation where it does not operate due to its own failure and a situation where it does not operate due to a reason other than its own failure. And an output means for displaying the determination result on the second display means.

  According to a second aspect of the present invention, display items related to the first display means for the second display means are displayed by interrupting the normal display items of the second display means.

  Further, according to a third aspect of the present invention, the second display means is provided with a manual operation means for forcibly displaying the display items related to the first display means for a predetermined period.

  According to the first aspect of the present invention, the amount of information to be displayed related to the state of the vehicle tends to increase in recent years due to the remarkable development of electronic control of automobiles. In combination with this, a so-called “multi-information display (hereinafter abbreviated as MID)” in which information is collectively displayed is increasingly provided in the instrument panel. Therefore, this MID is used as the second display means, for example, a head-up display (hereinafter abbreviated as HUD) of the night vision system is used as the first display means, and the darkness is displayed by displaying on the MID that the HUD is warming up. In a situation where the driver is informed that the vision system is not out of order or the HUD is not displayed because the headlight is not lit even though the night vision system is in a standby state at night or in a tunnel. An image of HUD is displayed due to a malfunction of the liquid crystal panel due to a decrease in the outside temperature of the vehicle while driving while receiving visual assistance from the night vision system by displaying on the MID to turn on the headlight. If the reason is displayed on the MID even when the driver is disturbed, the driver can grasp the situation accurately and quickly. Next, it is possible to eliminate the concentration is inhibited for driving operation of the vehicle.

  According to the second aspect, necessary items can be displayed in a timely manner, so that the immediacy of information transmission can be improved.

  Furthermore, according to claim 3, since information can be repeatedly displayed as desired by the driver, the driver can be given time to confirm the display, and after the display is finished, the display is about to interrupt. Since it is automatically restored, it is possible to eliminate the omission of information transmission without making it bothersome.

  Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 shows the overall configuration of a night vision system to which a vehicle display device according to the present invention is applied. This night vision system 1 includes an infrared camera 2 attached to the front center of the vehicle body, an illuminance sensor 3 provided at an appropriate position on the vehicle body to detect the illuminance outside the vehicle, and each lamp provided on the steering column. The combination switch 4 that performs the flashing operation of the camera and the image captured by the infrared camera 2 can be displayed on the liquid crystal panel, and can appear on the instrument panel to provide the driver with a video image (virtual image) reflected and projected from the light image And a control unit 6 that controls the infrared camera 2 and the HUD 5 based on output signals from the illuminance sensor 3 and the combination switch 4 and the like.

  On the other hand, as shown in FIG. 2, the speedometer 11 provided in the instrument panel is provided with a MID 12 including a liquid crystal panel for displaying various information, and information related to various items to be described later is provided as necessary. Can be displayed in a timely manner.

  The control unit 6 of the night vision system 1 extracts the necessary information from the image data captured by the infrared camera 2 and the driver circuit 6a that controls the infrared camera 2 and the HUD 5, and converts it into pixel data that can be displayed on the HUD 5. An image processing circuit 6b for conversion and a self-diagnosis circuit 6c for checking the state of the entire system are included.

  The control unit 13 that controls the display of the MID 12 inputs signals from various sensors 14 such as the fuel tank remaining amount, the fuel flow rate, the rotational speed of each wheel, the engine rotational speed, and the like. Information processing circuit 13a for calculating fuel consumption, average vehicle speed, cruising range, torque distribution ratio of front and rear wheels, etc., and selecting / setting items to be displayed based on a signal from switch 15 operated by the driver, and liquid crystal panel Includes a driver circuit 13b for displaying character information and the like.

  The control unit 6 of the night vision system 1 and the control unit 13 of the MID 12 are connected to each other via a communication line, and the self-diagnosis circuit 6c included in the control unit 6 of the night vision system 1 cannot display the HUD 5. When it is determined that it is in the state, the fact is output to the information processing circuit 13a included in the control unit 13 of the MID 12.

  The MID 12 uses various items such as average fuel consumption, instantaneous fuel consumption, average vehicle speed, cruising distance, and front / rear wheel torque distribution ratio as normal display items, and information including characters is predetermined according to the signal of the switch 15 operated by the driver. In addition to the normal display items, the information is displayed first in addition to the normal display items. And usually the item selected by the driver is displayed, information related to a serious trouble that occurred temporarily, for example, or the reason that the HUD 5 does not operate (warm up, headlight not lit, outside temperature drop, System anomalies), a notice display indicating that the HUD 5 is operating, etc. are displayed each time in the interrupt process, and automatically return to the pre-interrupt display when a predetermined time has elapsed.

  This temporarily displayed item is stored in the information processing circuit 13a included in the control unit 13 of the MID 12, and if the driver wants to check again, it can be called again by an appropriate operation. The display is reproduced by the interrupt processing, and is displayed only while the switch 15 is pressed, for example. Information immediately before the operation of the night vision system 1 (mainly information related to failure) is also stored, and the information can be displayed on the MID 12 at the next engine start. These memories are automatically deleted when the situation to be displayed is resolved.

  In this way, according to the present invention, accurate information can be quickly transmitted to the driver using the MID 12 whose display function is always operating during driving of the vehicle. Can greatly contribute to the improvement of usability.

It is a transparent figure of the vehicle carrying this invention device. It is a front view of a speedometer. It is a schematic block diagram of this invention apparatus.

Explanation of symbols

5 HUD
6 Night vision system control unit 6a Driver circuit 6b Image processing circuit 6c Self-diagnosis circuit 12 MID
13 MID control unit 13a Information processing circuit 13b Driver circuit

Claims (3)

A vehicle comprising first display means for displaying mainly information relating to an image captured by a camera on a display provided on the instrument panel so as to be freely movable, and second display means for mainly displaying information relating to a driving state of the vehicle. Display device,
The first display means includes an output means for judging a situation that does not operate due to a self-failure and a situation that does not work due to a reason that is not a self-failure, and displays the judgment result on the second display means. A vehicle display device.
  2. The vehicle display device according to claim 1, wherein display items related to the first display unit with respect to the second display unit are displayed so as to interrupt a normal display item of the second display unit.   The vehicle display device according to claim 1, wherein the second display unit includes a manual operation unit for forcibly displaying a display item related to the first display unit for a predetermined period.

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