JP2001088577A - Display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device efficiently arranged on a combination meter with simple constitution and allowing a driver to sufficiently recognize the changeover of the operating state of a driving support system. SOLUTION: An ADA operating state display means of an ADA system symbol 13 lighted in the driving support control ON state of an ADA system 50, a system OFF symbol 14 lighted in the driving support OFF state of the ADA system 50, and the like is disposed at an LCD 11 with a time display part 12 disposed. When the operating state of the ADA system 50 is switched, the time display part 12 is temporarily switched to make a transition display, and then the present operating state is displayed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device for displaying an operation state of a driving support system for a vehicle.

2. Description of the Related Art In recent years, a comprehensive driving support system that actively assists driving operation of a vehicle, a so-called ADA system (Active Drive Assist system).
em) has been developed. This ADA system uses road conditions,
Recognizing an obstacle, a traffic environment, and the like, the image data is used to predict the possibility of a vehicle departure from the lane, a rear-end collision, and contact with an obstacle. Then, as a way of driving assistance in the case of prediction, based on the idea that the vehicle is to be operated by a human, a warning is first issued to prompt the driver to perform an avoidance operation. If the driver does not perform the avoidance operation properly even after issuing an alarm, it is suggested to automatically control the driving system of the brake, throttle or steering to a safe side or to assist the driver temporarily to take over the driving operation. Have been.

According to the ADA system, the presence of the preceding vehicle, the speed of the preceding vehicle, the distance to the preceding vehicle, the relative speed, and the like can be detected from the image data. And the vehicle can run following the preceding vehicle. Therefore, when the cruise control device is combined with the ADA system, if there is no preceding vehicle, or if there is a distant vehicle, the vehicle will run at a constant speed under normal cruise control. If the preceding vehicle is nearby, it will be safe. It is possible to control to follow the vehicle while keeping the following distance.

In the above ADA system, an appropriate image signal cannot be obtained by the front monitoring camera.
It may be difficult to perform image recognition. In such a case, from the viewpoint of ensuring safety, driving support control such as alarm control and vehicle motion control by the ADA system is not generally performed. Therefore, in such an ADA system, it is necessary for the driver to perceive the operating state of the ADA system, such as the driving support control ON state (normal state) or the OFF state (halt state), using a display device or the like. . At this time, it is generally desirable that the display unit of the display device is disposed on the combination meter from the viewpoint of easy recognition by the driver.

[0004]

However, when the ADA system switches from the driving support control ON state to the OFF state, or the driving support control O
When switching from the FF state to the ON state, it is necessary to make the driver actively recognize this fact, so that a certain display area is required on the display unit, and it is desirable that the display is also different from the normal state. . On the other hand, when the normal state or the halt state is continued, the display device only needs to perform display as much as possible so that the driver can confirm the current state as necessary, and does not need to perform excessive display. Therefore, increasing the size and complexity of the display unit only to make the driver actively recognize the switching of the ADA system is inefficient in terms of manufacturing cost and the like.

It is difficult to newly add such a display unit to a narrow combination meter on which various meters and indicator lights are arranged.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and can be efficiently arranged on a combination meter with a simple configuration, and can sufficiently recognize the switching of the operation state of a driving support system to a driver. It is an object of the present invention to provide a display device capable of performing the above.

[0007]

In order to solve the above-mentioned problems, a first display device according to the present invention is provided on a combination meter of a vehicle and has at least two displays corresponding to an operation state of a driving support system of the vehicle. A display device comprising a driving support system operation state display means having two display states, wherein when the operation state of the driving support system is switched, the operation of the driving support system is switched between the two display states. It is characterized by comprising transition information display means for displaying transition information indicating a state change.

In a second display device according to the present invention, in the first display device, the transition information display means includes:
The predetermined information is displayed constantly except when the transition information is being displayed, and the predetermined information is temporarily switched to display the transition information.

A third display device according to the present invention is characterized in that, in the second display device, the predetermined information is a time display.

In a fourth display device according to the present invention, in the first to third display devices, the transition information display means and the driving support system operation state display means are formed as an integrated unit. Features.

In a fifth display device according to the present invention, in the first to fourth display devices, the transition information display means blinks the transition information.

A sixth display device according to the present invention is characterized in that, in the first to fifth display devices, the transition information is character information.

The sixth display device according to the present invention, in the first to sixth display devices, further comprises an alarm unit for issuing an alarm in synchronization with the display of the transition information by the transition information display unit. It is characterized by.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. 1 is an explanatory view showing a display unit, FIG. 2 is a functional block diagram of a display device, FIG. 3 is a front view of a combination meter, and FIG. 4 is an operation state of an ADA system. FIG. 5 is an explanatory diagram showing the transition of the display unit when it changes, and FIG. 5 is an enlarged view showing a segment for time display.

In FIG. 3, reference numeral 1 denotes a combination meter arranged on an instrument panel of a vehicle. Here, the combination meter 1 is a CCD
The present invention is applied to a vehicle equipped with a so-called ADA system 50 (see FIG. 2), which is a driving support system that actively assists the driving operation of the vehicle based on information from a front monitoring camera such as a camera.

In the combination meter 1, a speedometer 2 and a tachometer 3 are arranged side by side.

A fuel meter 4 is provided on the left side of the speedometer 2, and above the fuel meter 4, indicators such as VDC, ABS, and 4WD, which indicate operating states, are provided.

A water temperature gauge 5 is provided on the right side of the tachometer 3, and a charging system,
Indicators are provided for notifying the driver of abnormalities in power steering or the like when they occur.

An AT position indicator 6 is provided between the speedometer 2 and the tachometer 3, and an inter-vehicle distance warning light 7 is provided above the AT position indicator 6.

In addition, above the inter-vehicle distance warning light 7,
A preceding vehicle capturing indicator 8 indicating that the preceding vehicle has been captured by the ADA system 50 is provided. Turn signal indicators 9 are provided on both left and right sides of the preceding vehicle capturing indicator 8.

The speedometer 2 is provided with an od trip meter 10 for displaying a running distance obtained by integrating signals from a vehicle speed sensor on a liquid crystal display.

The tachometer 3 is provided with a liquid crystal display (LCD) 11 having a time display function for displaying time.

The ADA system 50 has a C
Since the front surveillance camera such as a CD camera recognizes the front of the vehicle, an appropriate image signal cannot be obtained, for example, when the vehicle is running on rain, at night, or on a snowy road, and it is difficult to perform image recognition. It may be. In such a case, A
The DA system 50 switches from the driving support control ON state (normal state) to the OFF state (halt state). Therefore, the driving support control is turned off from the ON state.
When switching to the state or when switching from the driving support control OFF state to the ON state, it is necessary to notify the driver of this.

For this reason, the LCD 11 has a function of displaying the ADA operation state in addition to the time display function. That is, as shown in FIG. 1, a time display section 12 and an ADA system symbol 13 are displayed on the LCD 11.
, System OFF symbol 14, and preceding vehicle symbol 1
5 and an inter-vehicle distance symbol 16 are provided.

The time display section 12 is formed by combining a plurality of segments 12a, and can display time by a 12-hour digital display. Here, as shown in FIG. 5, in the tens place of the minute display portion of the time display section 12, two segments 12b and 12
"b" is additionally provided, so that the letter "N" of the alphabet can be displayed. Then, the characters “ON” or “OFF” of the alphabet can be displayed on the entire time display section 12.

The ADA system symbol 13
Is turned on when the driving support control by the ADA system 50 is ON, and the driver is made aware of this.

The system OFF symbol 14
Is turned on when the operation control by the ADA system 50 is OFF, and the driver is made aware of this.

The preceding vehicle symbol 15 and the inter-vehicle distance symbol 16 are turned on during adaptive cruise traveling by the ADA system 50 and a cruise control device (not shown), etc., so that the driver can recognize that. At this time, the distance between the host vehicle and the preceding vehicle is displayed based on the number of lights of the distance symbol 16.

The LCD 11 is connected to a meter microcomputer 60 disposed on the back of the combination meter 1 and having a function as display control means. That is, the lighting of each segment 12 a and each symbol 13 to 16 arranged on the LCD 11 is controlled via the LCD driver 61 provided in the meter microcomputer 60.

The microcomputer for meter 60 is connected to the ADA system 50, and sends and receives signals via the communication interfaces 51 and 62.

Next, display control of the LCD 11 by the meter microcomputer 60 will be described. A
When the DA system 50 is in the driving support control ON state, the microcomputer 60 for the meter is configured as shown in FIG.
As shown in the figure, the ADA system symbol 13 is turned on and the predetermined segment 12a on the time display unit 12 is turned on.
Lights up to indicate the current time.

Next, it becomes difficult to perform sufficient image recognition due to a change in the driving environment or the like, and when the ADA system 50 is switched to the driving support OFF state, the meter microcomputer 60 displays the transition state of the display. The LCD 11 is controlled. Specifically, as shown in FIG. 4B, the time display unit 12 is switched to display the character “OFF” while the ADA system symbol 13 is turned on.

The microcomputer 6 for the meter
0 indicates that the transition state of this display is kept for a predetermined time (for example, 3 seconds).
c) After the holding, as shown in FIG. 4C, the ADA system symbol 13 is turned off while the system OFF symbol 14 is turned on, and the time display unit 12 is switched to display the current time.

On the other hand, when the ADA system 50 switches from the driving support control OFF state to the driving support control ON state, the meter microcomputer 60 controls the LCD 11 so as to indicate the transition state of the display. That is, as shown in FIG. 4D, the ADA system symbol 13 is turned on while the system OFF symbol 14 is turned off, and the time display section is switched to display the character "ON".

The microcomputer for meter 6
0 indicates that the transition state of this display is kept for a predetermined time (for example, 3 seconds).
c) After the holding, as shown in FIG. 4E, the time display section 12 is switched to display the current time while the ADA system symbol 13 is kept on. Further, during adaptive cruise traveling, the meter microcomputer 60 displays the preceding vehicle symbol 15 as shown in FIG.
And the inter-vehicle distance symbol 16 is turned on.

According to such an embodiment, when the operation state of the ADA system 50 is switched, not only the ADA system symbol 13 or the system OFF symbol 14 is turned on and off, but also the time display of the time display section 12 is switched. Since the transition information is displayed between turning on and off the symbols 13 and 14, it is possible to make the driver surely recognize the switching of the operation state of the ADA system 50.

That is, when the operating state of the ADA system 50 is switched, the operating state of the ADA system 50 is switched by using not only a single small symbol but also the time display section 11 which is another large display means. Can be improved.

Further, since the transition information displayed on the time display unit 12 is based on characters, the driver can easily grasp the switching of the operation state of the ADA system 50. At this time, the time display unit 12 can display characters only by adding a small number of segments 12b to the time display segment 12a, so that a simple and inexpensive configuration can be achieved without using an expensive dot matrix liquid crystal or the like. Character display can be realized.

In addition, when the operation state of the ADA system 50 is not switched, the operation state of the ADA system 50 is displayed only by the ADA system symbol 13 or the system OFF symbol 14, so that the display is troublesome due to excessive display. Can be reduced.

Further, when the ADA system 50 is switched, the time display unit 12 is also used temporarily as a means for displaying transition information of display switching, so that the ADA system symbol 13 and the system OFF symbol 14 can be used in a conventional combination meter. Just add a few parts,
A display device for the ADA system 50 can be configured.

Therefore, the display device for the ADA system can be efficiently arranged at low cost even on a narrow combination meter.

Here, in the above-described embodiment, AD
When the operation state of the A system 50 is switched, a transition display such as an ON or OFF mark blinks,
It is also possible to make the driver recognize the switching of the operation state of the ADA system more positively.

Further, an alarm means such as a buzzer is added to the display device, and a buzzer sound or the like is emitted in synchronization with the switching of the operation state of the ADA system 50, so that the AD device can be more reliably controlled.
The driver can recognize the switching of the operation state of the A system 50.

In this embodiment, an example has been described in which a time display section is applied as a steady display means. However, the present invention is not limited to this. For example, an od / trip meter of a liquid crystal display may be used. May be substituted. When a speedometer or the like is a liquid crystal display, these may be substituted. Further, characters displayed at the time of transition are not limited to those described above.

[0045]

As described above, according to the present invention, the display device for displaying the operation state of the driving support system can be efficiently arranged on the combination meter with a simple configuration. The switching of the operation state of the support system can be sufficiently recognized by the driver.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a display unit.

FIG. 2 is a functional block diagram of a display device.

FIG. 3 is a front view of the combination meter.

FIG. 4 is an explanatory diagram showing transition of a display unit when an operation state of the ADA system changes.

FIG. 5 is an enlarged view showing a segment for time display.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Combination meter 11 ... Liquid crystal display 12 ... Time display part (transition information display means) 13 ... ADA system symbol (drive support system operation state display means) 14 ... System OFF symbol (drive support system operation state display means) 50 ... Driving support system 60 ... Meter microcomputer (display control means)

Claims (7)

[Claims] 1. A display device provided with a driving support system operating state display means disposed on a combination meter of a vehicle and having at least two display states corresponding to an operating state of the driving support system of the vehicle. When the operation state of the driving support system is switched, the information processing apparatus further includes a transition information display unit that displays transition information indicating the switching of the operation state of the driving assistance system between the switching of the two display states. Display device. 2. The transition information display means for constantly displaying predetermined information except when the transition information is being displayed, wherein the predetermined information is temporarily switched to display the transition information. The display device according to claim 1. 3. The display device according to claim 2, wherein the predetermined information is a time display. 4. The display device according to claim 1, wherein the transition information display means and the driving support system operation state display means are configured as an integrated unit. 5. The display device according to claim 1, wherein the transition information display means blinks the transition information. 6. The display device according to claim 1, wherein the transition information is character information. 7. The display device according to claim 1, further comprising an alarm unit that issues an alarm in synchronization with the display of the transition information by the transition information display unit.