JPH10100739A - Head up display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a driver to drive safely with his attention concentrated on a front view by providing a first display source on-off control means for switching off input to a display source during the output of an ABS control signal. SOLUTION: In order to take in a control signal, a first display source on-off control means 12 is connected to a line to which a control signal of an ABS ECU 10 is outputted, and an on-off control circuit for switching off input to a display (display source) 18 when the cotnrol signal is actually sent is connected to the first display source on-off control means 12. In case of the display 18 being on, the first display source on-off control means 12 outputs a power supply off signal to the on-off control circuit 13 so as to switch off input to the display 18. At the time of emergency when ABS is in operation, a display image in an HUD device is effaced, and a driver can drive safely with his attention concentrated on a front view.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a head-up display device, and more particularly, to a head-up display device for displaying driving information by forming a virtual image on a front background of a vehicle.

[0002]

2. Description of the Related Art A meter panel (instrument) on the driver's seat of a car or the like is located slightly below the front of the driver's seat, such as a speedometer, an engine tachometer (tachometer), a total distance meter (odometer), a fuel gauge, a water temperature gauge, and the like. However, as warning lights, a number of speed warning lights, charging warning lights, exhaust temperature warning lights, hydraulic warning lights, engine warning lights, brake warning lights, fuel remaining amount warning lights, and the like are arranged. Therefore, it is difficult for a driver who is driving while gazing at a relatively distant front to instantly change his line of sight to the lower side and accurately read the information content displayed on the instrument panel while focusing. It may be. As an auxiliary means for coping with this problem, a head-up display (hereinafter, referred to as HUD) device for displaying a measured value or a warning mark of the predetermined instrument as a virtual image relatively far in the gaze direction has been developed. .

FIG. 29 is a cross-sectional view schematically showing a conventional HUD device of this type mounted on an automobile (Japanese Patent Laid-Open Publication No.
In the figure, reference numeral 81 denotes a display source. The display source 81 includes a light emitting VFD (Vacuum Fluoresce).
nt Display) or non-emission type LC with light source
A D (Liquid Crystal Display) is used, and for example, a speed numerical value and a speed warning mark similar to the information displayed on an instrument panel (not shown) are displayed in different colors. . The display source 81 is fixedly installed, for example, in a meter case 91 in front of the instrument panel. A translucent reflecting means 82 is provided at a predetermined position on the windshield 92 above the meter case 91.
Numeral 2 is enclosed in a windshield 92, which is a laminated glass, so as to be protected from the environment inside and outside the vehicle compartment 93. The translucent reflector 82 includes a hologram-processed translucent reflector (combiner) 821, and the total transmittance of the translucent reflector 821 and the windshield 92 is set to 70% or more. . The HUD device 80 includes the display source 81 and the translucent reflecting means 82.

In the case of the HUD device 80 configured as described above, for example, when a light ray (speed numerical value) 83a of a short wavelength (green) is emitted from the display source 81, this light ray 83 is emitted.
a passes through the window 91a, is reflected by the translucent reflecting means 82, and is projected to the eyes of an observer 90 such as a driver. Then, along with the scenery to watch, the green speed value "1"
00 ”83c is about 1000m in front of windshield 92
It is visually recognized as a virtual image at a distance of m. At the same time, when, for example, a light ray (speed warning mark) 84a having a long wavelength (red) is emitted from the display source 81, the light ray 84a is reflected by the translucent reflecting means 82 and projected on the eye 90 of the observer. Then the speed warning mark "△" that shows red
84c is about 50mm of speed value "100" 83c
It is visually recognized as a virtual image overlapping on the near side or on the left or right side about 50 mm before this.

[0005]

As described above, the HUD device has a feature that the driving information is superimposed and displayed on the front scenery, so that the HUD device has an excellent visibility. There was a problem that the display was distracted and the recognition of the front scenery near the display was reduced.

For example, in a situation where the ABS is operating, it is necessary to pay close attention to the front scene. However, if the display is performed by the HUD device, the field of view near the display is impaired. In some cases, it may be difficult to adapt to driving. Also, when sudden acceleration or sudden deceleration is performed, it is necessary to pay close attention to the scenery ahead.
The display by the D device may be an obstacle.

On the other hand, there is a problem that it is difficult to see a displayed image if the image is displayed at a normal position in a situation such as when the wiper is operating on a rainy day. In addition, when the surrounding brightness suddenly changes, there is another problem that it is difficult to see a display image in a display using normal luminance.

Further, during driving, there is a case where it is desired to inform the driver of other information in addition to information such as the vehicle speed.
In the D device, such information is not displayed. For example, in a navigation system, when a car enters a building
Poor reception from positioning system (GPS) satellites may result in erroneous information being provided, which requires a warning to be issued. Conventionally, such a warning is displayed using a HUD device. Was not done.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and when a display is performed by a HUD device, it is necessary to watch the scene in front, or when a wiper or the like is operated to make it difficult to see the display image. Move it to a position where it does not
It is an object of the present invention to provide a HUD device that can be erased.

Further, the present invention provides a HUD in which a display image can be clearly recognized even when ambient brightness changes.
It is intended to provide a device.

It is a further object of the present invention to provide a HUD device capable of notifying that the reception condition is bad when the reception condition from a GPS satellite in the navigation system is deteriorated.

[0012]

To achieve the above object, a HUD device (1) according to the present invention comprises a display source for displaying information and a display image radiated from the display source for a driver's seat. A HUD device configured to include a combiner for projecting the image in a forward field of view, wherein a first display source on / off control means for turning off an input to the display source when an ABS control signal is output is provided. It is characterized by having.

According to the above-mentioned HUD device (1), in an emergency when the ABS is operating, the display image on the HUD device is erased, and the driver can concentrate his attention on the scene in front, and can drive safely. It can be carried out.

Further, the HUD device (2) according to the present invention comprises:
A HUD including a display source for displaying information, a combiner for displaying a display image emitted from the display source in a field of view in front of a driver's seat, and a display image moving device for moving a display position of the display image. The apparatus is characterized by comprising first display position changing means for changing a display position of the display image when an ABS control signal is output.

According to the HUD device (2), in an emergency when the ABS is operating, the display image moves to a position where it does not hinder driving, and the driver can concentrate his or her attention on the scene in front. Driving can be done safely.

Further, the HUD device (3) according to the present invention comprises:
In a HUD device including a display source for displaying information, and a combiner for displaying a display image emitted from the display source in a field of view in front of a driver's seat, acceleration measuring means for measuring acceleration; A second display source on / off control means for turning off the input to the display source when a rapid acceleration or a rapid deceleration state is detected by the means.

According to the HUD device (3), when it is necessary to watch the front scene in a state of rapid acceleration or rapid deceleration, the display image is deleted, and the driver concentrates his attention on the front scene. And can drive safely.

Further, the HUD device (4) according to the present invention comprises:
A HUD including a display source for displaying information, a combiner for displaying a display image emitted from the display source in a field of view in front of a driver's seat, and a display image moving device for moving a display position of the display image. The apparatus includes an acceleration measuring means for measuring an acceleration, and a second display position changing means for changing a display position of the display image when a rapid acceleration or a rapid deceleration state is detected by the acceleration measuring means. It is characterized by:

According to the above-mentioned HUD device (4), when it is necessary to watch the front scene in a state of rapid acceleration or rapid deceleration, the display image moves to a position where it does not hinder the driving, and You can concentrate your attention on the scenery ahead and drive safely.

Further, the HUD device (5) according to the present invention comprises:
A gear range for detecting a gear range based on a control signal of a transmission in a HUD device including a display source for displaying information and a combiner for displaying a display image emitted from the display source in a field of view in front of a driver's seat. It is characterized by comprising a detecting means, and a third display source on / off control means for turning off the input to the display source when the gear range detecting means detects the reverse gear range.

According to the HUD device (5), a display image that does not need to be displayed can be erased when the vehicle is turned back.

Further, the HUD device (6) according to the present invention comprises:
A HUD including a display source for displaying information, a combiner for displaying a display image emitted from the display source in a field of view in front of a driver's seat, and a display image moving device for moving a display position of the display image. A gear range detecting means for detecting a gear range based on a control signal of a transmission, and a third display for changing a display position of the display image when the gear range detecting means detects a gear range in a high-speed running state. And a position changing means.

According to the above-mentioned HUD device (6), when it is necessary to watch the front scene in a high-speed driving state, the display image moves to a position where it does not hinder the driving, and the driver can view the front scene. You can concentrate your attention on the vehicle and drive safely.

Further, the HUD device (7) according to the present invention comprises:
In a HUD device including a display source for displaying information and a combiner for displaying a display image emitted from the display source in a field of view in front of a driver's seat, the number and reception of GPS satellites receiving radio waves Receiving status detecting means for detecting positioning accuracy by a GPS satellite, and display image blinking means for flashing the display image when the receiving status detecting means detects that the receiving condition is deteriorating. Features.

According to the HUD device (7), when the reception status from the GPS satellite is poor, it is determined that the reception status is poor by H
The driver can be notified by blinking display on the UD device, and it is possible to prevent the driver from moving the vehicle in the wrong direction.

Further, the HUD device (8) according to the present invention comprises:
In a HUD device including a display source for displaying information and a combiner for displaying a display image emitted from the display source in a field of view in front of a driver's seat, the number and reception of GPS satellites receiving radio waves It is characterized by comprising reception status detecting means for detecting the positioning accuracy of the GPS satellites, and display means for notifying the reception status deterioration when the reception status detection means detects that the reception status has deteriorated. I have.

According to the HUD device (8), when the reception status from the GPS satellite is poor, it is determined that the reception status is poor by H.
The driver can be notified by the display on the UD device,
It is possible to prevent the driver from moving the vehicle in the wrong direction.

Further, the HUD device (9) according to the present invention comprises:
A HUD including a display source for displaying information, a combiner for displaying a display image emitted from the display source in a field of view in front of a driver's seat, and a display image moving device for moving a display position of the display image. The apparatus includes a raindrop sensor that detects raindrops, and a fourth display position changing unit that moves a display position of the display image to a position outside a wiper wiping range when a raindrop is detected by the raindrop sensor. Features.

According to the HUD device (9), when the wiper is operating in a rainy condition, the displayed image moves out of the hard-to-see wiper wiping range, and the driver clearly recognizes the displayed image. It is possible to easily recognize the information from the HUD device and drive safely.

Further, the HUD device according to the present invention (10)
A display source for displaying information, a combiner for displaying a display image emitted from the display source in a field of view in front of a driver's seat,
A fifth display for detecting the operation of the wiper and moving the display position of the display image out of the wiping range of the wiper in the HUD device including the display image moving device for moving the display position of the display image. It is characterized by having a position changing means.

According to the HUD device (10), when the wiper is operating, the displayed image moves out of the hard-to-see wiper wiping range, and the driver can clearly see the displayed image. It is possible to easily recognize the information of the HUD device and drive safely.

Further, the HUD device according to the present invention (11)
A display source for displaying information, a combiner for displaying a display image emitted from the display source in a field of view in front of a driver's seat,
A display image moving device for moving the display position of the display image, wherein the operation of the defroster is detected, and the display position of the display image is set near the blowing position of the defroster on the windshield with little fogging. And a sixth display position changing means for moving the display position.

According to the HUD device (11), when the windshield is fogged and the display image is difficult to see at the normal display position, the display image moves to a part near the blow-off position of the defroster on the windshield without fogging. The driver can clearly see the displayed image, and can easily recognize the information from the HUD device and drive safely.

Further, the HUD device according to the present invention (12)
A display source for displaying information, a combiner for displaying a display image emitted from the display source in a field of view in front of a driver's seat,
In a HUD device including a brightness adjusting device for adjusting the brightness of the display image, an optical sensor for detecting the brightness around the vehicle, and a shift from a bright place to a dark place by the optical sensor. And a first display image brightness control means for displaying immediately after the detection at a brightness higher than the optimum brightness in a dark place and thereafter gradually reducing the brightness to the optimum brightness in a dark place. It is characterized by having.

According to the HUD device (12), when the display image is difficult to see when the user enters the tunnel from outside the tunnel, the brightness is gradually reduced to a display brightness that is easy to see, so that the driver can easily view the display image. It is possible to easily recognize the information from the HUD device and drive safely.

The HUD device according to the present invention (13)
A display source for displaying information, a combiner for displaying a display image emitted from the display source in a field of view in front of a driver's seat,
In a HUD device including a brightness adjusting device for adjusting the brightness of the display image, an optical sensor for detecting the brightness around the vehicle, and the optical sensor moves from a dark place to a bright place suddenly. And a second display image brightness control means for displaying immediately after the detection, darker than the optimum brightness in a bright place, and thereafter gradually increasing the brightness to the optimum brightness in a bright place. It is characterized by.

According to the HUD device (13), when the display image of the HUD device is difficult to see from the inside of the tunnel to the outside of the tunnel, the brightness is gradually increased to an easy-to-see display brightness, so that the driver can easily see the display image. Can, HU
Driving can be performed safely by easily recognizing information from the D device.

[0038]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of a HUD device according to the present invention. The HUD device according to Embodiment (1) includes a display source that displays information,
And a combiner for displaying a display image radiated from the display source in a field of view in front of the driver's seat. When an ABS control signal is output, the input to the display source is turned off. A first display source on / off control means is provided.

FIG. 1 is a block diagram schematically showing a configuration of the HUD device according to the embodiment (1).
It is a UD device main body.

The HUD device main body 15 includes a display source 18
(Hereinafter referred to as an indicator) ON / OFF is ABSECU1
The configuration is the same as that of the conventional HUD device, except that the control is performed via the first display source on / off control means 12 and the on / off control circuit 13 connected to 0. FIG.
The HUD device main body 15 shown in FIG. 1 is configured integrally with a display 18, a combiner 19 and the like.
A type in which the D device main body 15 is externally attached to a vehicle (HU
D device unit), but may be a type of HUD device as shown in FIG. 29 in which each component is incorporated in the interior of a vehicle and a combiner is installed on a windshield.

The ABS (Anti-lock Brake System) controls the slip ratio between the tire and the road surface to a desired value even when a brake is applied on a slippery road surface.
This is a system that stably brakes the car. Therefore,
When the ABS is in operation, it is often necessary to watch the scene in front, such as when the road surface is slippery.
If the display image of the D device is mixed in the front scene, there is a possibility that the concentration of nerves in the front may be disturbed. Therefore, in the HUD device according to Embodiment (1), when the ABS is operating, the display image is erased so as not to hinder driving.

When the ABS is operating, a control signal is output from the ABS ECU 10 to the ABS actuator 11 to control braking of each wheel. In order to capture this control signal, the first display source on / off control means 12 is connected to the line from which the control signal of the ABS ECU 10 is output, and the first display source on / off control means 12 is actually connected to the line. When the control signal is sent, the display (display source) 18
An on / off control circuit 13 for turning off the input to the switch is connected. The input to the display 18 is performed from the power supply 16. The input from the power supply 16 is controlled by the on / off control circuit 13, and the first on / off state of the display 18 is checked. Display source on / off control means 12
Is also connected to the display 18.

FIG. 2 is a flowchart showing the operation of the HUD device according to the embodiment (1). First, in the HUD device according to the present embodiment, the operation state is entered at the same time as the ignition switch of the car is inputted, and in step 1, the first display source on / off control means 12 sets A
The control signal from the BSECU 10 to the ABS actuator 11 is monitored at regular intervals, and it is determined whether or not the control signal has been output. ABSECU (hereinafter referred to as ABS
When it is caught that a control signal has been output from 10, it is determined in step 2 whether or not a control signal has been received from the ABS 10 during the previous measurement.
At the time of the first measurement, it is assumed that the control signal was not present at the time of the previous measurement.

In step 2, if the control signal has not been output last time, the process proceeds to step 3, where it is determined whether or not the display 18 is turned on. If the display 18 is on, the process further proceeds to step 4, where the first display source on / off control means 12 outputs a power-off signal to the on / off control circuit 13, and inputs the display 18. Turn off. Subsequently, the process proceeds to step 5, where a count process is performed for T seconds, and the state is maintained while the count process is being performed. T seconds can be set arbitrarily, but 5 seconds to 30 seconds.
Seconds are preferred. On the other hand, if the display 18 is not turned on in step 3, the control does not need to be performed, and therefore, the process returns to the first step 1.

In step 2, if the control signal was output at the time of the previous measurement, the input to the display 18 must have been already turned off.
A second count process is performed, and the input off state is maintained.

After the display 18 is kept off for T seconds, the process proceeds to step 6, where the control signal from the ABS 10 is monitored again to determine whether or not the control signal is being output. At this time, if the control signal from the ABS 10 has been output, the process returns to step 2 and AB
It is determined whether there is a control signal from S10, and as long as the control signal is output, steps 2, 5,
Then, the loop of step 6 is circulated, and the input to the display 18 is kept off.

On the other hand, if it is determined that the control signal has not been output from the ABS 10, the process proceeds from step 6 to step 7, where the input to the display 18 is turned on again to display a display image, and the process returns to step 1.

According to the HUD device according to the embodiment (1), in the event of an emergency when the ABS is operating, the display image on the HUD device is erased, and the driver can drive safely by focusing attention on the scene in front. It can be performed.

Next, the HUD device according to the embodiment (2) will be described. The HUD device according to the embodiment (2) moves a display source that displays information, a combiner that projects a display image emitted from the display source into a field of view in front of a driver's seat, and moves a display position of the display image. In a HUD device including a display image moving device, a first position for changing a display position of the display image when an ABS control signal is output.
Display position changing means.

FIG. 3 is a block diagram schematically showing a configuration of the HUD device according to the embodiment (2). In the HUD device according to the present embodiment, when the control signal of the ABS 10 is being output, instead of deleting the display image,
The display image is moved to a position where it does not interfere with driving. Therefore, a display position changing means 21 for changing the course of the display light emitted from the display 25 is provided.

In the HUD device main body 23, a gear 26a is formed on the reflector 26 itself, and the gear 26a and the motor A27 are formed.
And the gear 27a fixed to the reflector 2
6 rotates at an angle within a certain range. Further, a gear 24a is also formed on the table 24 on which the display 25, the reflector 26, the motor A27 and the like are mounted, and the gear 24a and the gear 28a fixed to the motor B28 are engaged with each other. The container 26 is rotated at a certain angle in a direction orthogonal to the rotation of the container 26. In the HUD device main body 23 configured as described above, by driving the motor A27 and the motor B28, the reflector 26 and the table 24 rotate, whereby the path of the display light radiated from the display 25 is changed. It is changed and the display image moves.

The device for moving the display image is not limited to the device shown in FIG. 3, but in another embodiment, for example, a device equipped with means for changing the angle of the combiner is used. Accordingly, a method of moving the display image may be adopted.

In order to take in control signals from the ABS (ECU) 10 to the ABS actuator 11, the ABS
(ECU) 10 has a first control line
Is connected to the first display position changing means 21, and a motor drive circuit 22 is connected to the first display position changing means 21.
The motor drive circuit 22 includes a motor A27 and a motor B28.
Is connected.

FIG. 4 is a flowchart showing the operation of the HUD device according to the embodiment (2). First, in step 11, the first display position changing means 21 sets the ABS
The control signal from 10 to the ABS actuator 11 is monitored, and it is determined whether or not the control signal is output. When the control signal from the ABS 10 is caught, it is determined in step 12 whether or not the control signal has been received from the ABS 10 even in the previous measurement. At the time of the first measurement, it is assumed that there is no control signal at the time of the previous measurement, as in the case of the embodiment (1).

If it is determined in step 12 that the control signal has not been output last time at the time of the previous measurement, it is necessary to move the display image.
The first display position changing means 21 outputs a control signal for driving the motor A27 and the motor B28 to the motor drive circuit 22 (step 14), and the displayed image is obstructed by the driver watching the front scene. It is moved to a position where it does not need to be changed, a count process for T seconds is performed in step 15, and that state is maintained.

Next, the process proceeds to step 16, where ABS1
The control signal from 0 is monitored to determine whether the control signal is output. At this time, if the control signal has been output from the ABS 10, the process returns to step 12, and it is determined whether or not the control signal has been output from the ABS 10 even at the previous measurement. , Step 15 and step 16 to keep the display image moved.

On the other hand, if it is determined that no control signal has been output from the ABS 10, it is necessary to return the display image to its original position. , A control signal for driving the motor A27 and the motor B28 is output (Step 18), and the display image is moved to the original position, and Step 11 is executed.
Return to

According to the HUD device according to the embodiment (2), in an emergency where the ABS is operating, the displayed image moves to a position where it does not interfere with driving, and the driver concentrates his attention on the scene in front. Safe driving.

Next, the HUD device according to the embodiment (3) will be described. The HUD device according to the embodiment (3) has an acceleration measuring means for measuring acceleration, and a second means for turning off an input to the display source when a rapid acceleration or a rapid deceleration state is detected by the acceleration measuring means. Display source on / off control means.

FIG. 5 is a block diagram schematically showing the configuration of the HUD device according to the embodiment (3). The configuration of the HUD device main body 15 is the same as that of the embodiment (1) shown in FIG. This is similar to the HUD device.

When the vehicle is suddenly accelerated or decelerated, the surroundings of the vehicle change, so the driver needs to pay close attention to the front view. However, there is a possibility that attention may be hindered. Therefore, in the present embodiment, the signal of the speed sensor 31 or the acceleration sensor 32 is taken into the second display source on / off control means 33 to detect a rapid acceleration state or a rapid deceleration state. HU
The display image of the D device is deleted. In FIG. 5, both the speed sensor 31 and the acceleration sensor 32 are shown, but either one may be used. The type of the speed sensor 31 and the type of the acceleration sensor 32 are not particularly limited as long as the acceleration can be calculated quantitatively by taking in the signal.

In this embodiment, the speed sensor 31
Alternatively, a second display source on / off control unit 33 is connected to the speed sensor 31 or the acceleration sensor 32 in order to receive a signal from the acceleration sensor 32, and the second display source on / off control unit 33 is turned on / off. The off control circuit 13 is connected. ON / OFF control circuit 1 of HUD device main body 15
3 is the same as that of the HUD device according to the embodiment (1) shown in FIG.

FIG. 6 is a flowchart showing the operation of the HUD device according to the embodiment (3). First, in step 21, the second display source on / off control means 33
Captures signals from speed or acceleration sensors,
Perform acceleration calculation processing. Next, in step 22, it is determined whether the acceleration α obtained by the arithmetic processing is larger than a certain value X or smaller than a certain value -Y.
When the condition of the acceleration α> X or the acceleration α <−Y is satisfied, it means a state of rapid acceleration and rapid deceleration. X,
-Y is determined by an actual running test or the like.

Then, the process proceeds to a step 23, wherein it is determined whether or not the vehicle was in the state of rapid acceleration and rapid deceleration even in the previous measurement. At the time of the first measurement, it is assumed that there was no rapid acceleration or rapid deceleration at the time of the previous measurement.

If it is not in the state of rapid acceleration or rapid deceleration at the time of the previous measurement, the process proceeds to step 24, and it is determined whether or not the display 18 is turned on. If the display 18 is turned on, the process further proceeds to step 25, where the second display source on / off control means 33 outputs a power-off signal to the on / off control circuit 13, and the input to the display 18 is Turn off. Subsequently, the process proceeds to step 26, where a count process for T seconds is performed, and the state is maintained during the count process. On the other hand, if the display 18 is not turned on in step 24, the control does not need to be performed, and the process returns to the first step 21.

In step 23, if the state of rapid acceleration and rapid deceleration was at the time of the previous measurement, the input to the display 18 should have been already turned off. And hold the input off state.

After the input OFF state is maintained for T seconds, the process proceeds to step 27, where the acceleration calculation process is performed again, and then a determination is made as to rapid acceleration and deceleration (step 28). At this time,
If the vehicle is in a state of rapid acceleration or rapid deceleration, the process returns to step 23,
Judgment of sudden acceleration and sudden deceleration is also made at the time of the previous measurement. As long as the state of rapid acceleration and sudden deceleration is maintained, the loop of steps 23, 26, 27 and 28 is circulated, and the input to the display 18 is turned off Keep the state of.

On the other hand, if it is determined that the vehicle is not in the state of rapid acceleration or rapid deceleration, the process proceeds from step 28 to step 29, where the input to the display 18 is turned on again to display a display image.
Return to step 21.

According to the HUD device according to the embodiment (3), when it is necessary to watch the front scene in a state of rapid acceleration or rapid deceleration, the display image is deleted, and the driver can view the front scene. You can concentrate on your safety and drive safely.

Next, the HUD device according to the embodiment (4) will be described. The HUD device according to the embodiment (4) has an acceleration measuring means for measuring acceleration, and a second position for changing the display position of the display image when a rapid acceleration or a rapid deceleration state is detected by the acceleration measuring means. Display position changing means.

FIG. 7 is a block diagram schematically showing the configuration of the HUD device according to the embodiment (4). The configuration of the HUD device main body 15 is the same as that of the embodiment (2) shown in FIG. Is similar to the HUD device according to the first embodiment, and is a simple drawing here.

In the present embodiment, the signal of the speed sensor 31 or the acceleration sensor 32 is taken into the second display position changing means 36 to detect a state of rapid acceleration or a state of rapid deceleration. Is moved to a position where it does not interfere with driving.

In the present embodiment, the speed sensor 31
Alternatively, a second display position changing means 36 is connected to the speed sensor 31 or the acceleration sensor 32 in order to receive a signal from the acceleration sensor 32, and the second display position changing means 3
6 is connected to a motor drive circuit 13. The configuration of the HUD device main body 23 and the method of connecting to the motor drive circuit 22 are the same as those of the HUD device according to the embodiment (2) shown in FIG.

FIG. 8 is a flowchart showing the operation of the HUD device according to the embodiment (4). First, in step 31, the second display position changing means 36 captures a signal from the speed sensor 31 or the acceleration sensor 32,
Perform acceleration calculation processing. Next, in step 32, it is determined whether the acceleration α obtained by the arithmetic processing is larger than a certain value X or smaller than a certain value -Y, that is, whether the vehicle is in a state of rapid acceleration or rapid deceleration.

Then, the process proceeds to a step 33, wherein it is determined whether or not the vehicle was in a state of rapid acceleration and rapid deceleration even in the previous measurement. The processing at the time of the first measurement is described in Embodiment (3).
Is the same as

If it is not in the state of rapid acceleration or rapid deceleration at the time of the previous measurement, it is necessary to move the display image, so the process proceeds to step 34, where the second display position changing means 36 transmits the motor A27 to the motor drive circuit 22. Then, a control signal for driving the motor B28 is output (step 35), and the display image is moved to a position where the driver does not hinder the gaze of the front view. At step 36, a counting process for T seconds is performed. , Hold that state.

Next, the routine proceeds to step 37, where acceleration calculation processing and rapid acceleration / deceleration determination are performed again. At this time, if the vehicle is in the state of rapid acceleration and rapid deceleration, the process returns to step 33, and the determination of rapid acceleration and sudden deceleration in the previous measurement is performed. It circulates between the loop of step 37 and step 38, and keeps the display image moved.

On the other hand, if it is determined in step 38 that the vehicle is not in a state of rapid acceleration or rapid deceleration, it is necessary to return the display image to the original position. The motor A27 is connected to the drive circuit 22.
Then, a control signal for driving the motor B28 is output (step 40), the display image is moved to the original position, and the process returns to step 31.

According to the HUD device according to the embodiment (4), when it is necessary to watch the front scene in a state of rapid acceleration or rapid deceleration, the display image moves to a position where it does not hinder driving. The driver can drive safely by focusing on the scenery ahead.

Next, the HUD device according to the embodiment (5) will be described.

The HUD device according to the embodiment (5) includes a gear range detecting means for detecting a gear range based on a control signal of a transmission, and the display source when the gear range detecting means detects a reverse gear range. And third display source on / off control means for turning off the input to the display.

FIG. 9 is a block diagram schematically showing the configuration of the HUD device according to the embodiment (5). The configuration of the HUD device main body 15 is the same as that of the embodiment (1) shown in FIG. This is similar to the HUD device.

When the vehicle is backed up, there is no need to perform display by the HUD device. Therefore, in such a case, the display image of the HUD device is deleted.

In this embodiment, in order to receive the signal of the shift lever position switch 41, the shift lever position switch 41 is provided with the gear range detecting means 42.
Is connected to the gear range detecting means 42.
Is connected to the display source on / off control means 43. The on / off control circuit 13 is connected to the third display source on / off control means 43. The method of connecting the HUD device body 15 to the on / off control circuit 13 is the same as that of the HUD device according to the embodiment (1) shown in FIG.

FIG. 10 shows a HUD according to the embodiment (5).
5 is a flowchart showing the operation of the device. First, in step 41, the gear range detecting means 42 receives a signal from the shift lever position switch 41 and determines whether or not the shift lever position switch 41 is reverse.

Then, the process proceeds to a step 42, wherein it is determined whether or not the shift lever position switch 41 is in the reverse position even at the previous measurement.

If the shift lever position switch 41 is not in the reverse state at the time of the previous measurement, the routine proceeds to step 43, where it is determined whether or not the display 18 is turned on. If the display 18 is on, the process further proceeds to step 44, where the third display source on / off control means 4
3 outputs a power-off signal to the on / off control circuit 13,
The input of the display 18 is turned off. On the other hand, if the display 18 is not turned on in step 43, there is no need to perform control, so the process returns to the first step 21.

In step 42, if the shift lever position switch 41 was in the reverse state at the time of the previous measurement, the input to the display 18 should have been already turned off, so that the routine jumps to step 45. In step 45, it is determined again whether the shift lever position switch 41 is reverse. At this time, if the shift lever position switch 41 is in the reverse state, the process returns to step 42, and it is determined whether the shift lever position switch 41 is in the reverse state even at the previous measurement. The loop of steps 42 and 45 is circulated, and the input to the display 18 is kept off.

On the other hand, if it is determined that the state is not the reverse state, the process proceeds from step 45 to step 46, where the input of the display 18 is turned on again to display the display image, and the process returns to step 41.

According to the HUD device according to the embodiment (5), when the vehicle is turned back, a display image that does not need to be displayed can be deleted.

Next, the HUD device according to the embodiment (6) will be described. The HUD device according to the embodiment (6) includes a gear range detection unit that detects a gear range based on a control signal of a transmission, and a gear range detection unit that detects a gear range in a high-speed running state when the gear range detection unit detects the gear range. Third display position changing means for changing the display position.

FIG. 11 shows a HUD according to the embodiment (6).
FIG. 2 is a block diagram schematically showing the configuration of the device,
The configuration of the apparatus main body 23 is the same as that of the embodiment (2) shown in FIG.
Is the same as the HUD device according to the above.

In this embodiment, the transmission E
The control signal of the solenoid output from the CU 44 to the solenoid 45a of the gear train 45 and the signal of the shift lever position switch 41 are transmitted to the third display position changing means 4.
6, the high-speed running state is detected, and the display image of the HUD device is moved to a position where it does not hinder driving. In the case of an automatic vehicle, since the position of the gear is determined by which solenoid of the shift lever position switch 41 and the gear train 45 is to be operated, signals related to these are read.

In this embodiment, the transmission ECU 44 and the shift lever position switch 4
1, the gear range detecting means 42 is connected to the transmission ECU 44 and the shift lever position switch 41.
Further, the third display position changing means 46 is connected to the second display position changing means 46, and the motor drive circuit 22 is connected to the third display position changing means 46. The method of connecting the HUD device main body 23 to the motor drive circuit 22 is the same as that of the HUD device according to the embodiment (2) shown in FIG.

FIG. 12 shows a HUD according to the embodiment (6).
5 is a flowchart showing the operation of the device. First, in step 51, the gear range detecting means 42 receives a signal from the shift lever position switch 41, sends it to the third display position changing means, and determines whether the shift lever position switch 41 is in the reverse state. Subsequently, the process proceeds to step 52, and similarly, it is determined whether or not the combination of control signals from the transmission ECU 44 to the solenoid 45a is a combination of O / D (overdrive) gears.

If the position of the shift lever position switch 41 is drive and the combination of the control signals to the solenoid 45a is the combination of the O / D gear, the process proceeds to step 53, and the shift lever position switch 41 is also used in the previous measurement. Is a drive, and it is determined whether or not the combination of control signals to the solenoid 45a is a combination of O / D gears.

If the combination is not the same at the previous measurement, the display image must be moved. Therefore, the process proceeds to step 54, where the third display position changing means 46 sends the motor A27 and the motor B28 to the motor drive circuit 22. Is output (step 55), and the displayed image is moved to a position where the driver does not hinder the driver's gaze at the front view. In step 56, a count process for T seconds is performed. Hold.

In the following, it is determined in step 57 that the position of the shift lever position switch 41 is drive, and the combination of control signals to the solenoid 45a is O /
Since it is the same as the case of the HUD device according to the embodiment (2) shown in FIG. 4 except that it is a combination of D gears, detailed description is omitted.

According to the HUD device according to the embodiment (6), when it is necessary to watch the front view in a high-speed driving state, the display image moves to a position where it does not hinder the driving, and Can focus on the scenery ahead,
Driving can be done safely.

Next, the HUD device according to the embodiment (7) will be described. The HUD device according to the embodiment (7) includes the number of GPS satellites receiving radio waves and the received GPS
A reception status detecting means for detecting the positioning accuracy of the satellite, and a display image blinking means for flashing the display image when the reception status detection means detects that the reception condition is deteriorating.

FIG. 13 shows a HUD according to the embodiment (7).
FIG. 2 is a block diagram schematically showing the configuration of the device,
The configuration of the apparatus main body 15 is the same as that of the embodiment (1) shown in FIG.
Is the same as the HUD device according to the above.

The navigation system receives signals transmitted from a plurality of GPS satellites, and can accurately calculate and display the current position of the vehicle based on the received signals. You can drive to your destination while checking the vehicle position. However, if the reception condition of the radio wave from the GPS satellite is poor, incorrect information may be displayed on the display device of the navigation system, and the driving direction may be erroneous. Therefore, in the present embodiment, the display image blinks in the above case to notify the driver that the reception state is poor.

In the present embodiment, the GPS satellite 51
From the GPS receiver 52 to the GPS receiver 52
The reception status detecting means 53 is connected to the receiver 52,
The display image blinking means 54 is connected to the reception state detecting means 53. Display image blinking means 54 of HUD device main body 15
The connection method with the ON / OFF control circuit 13 in the case of the HUD device according to the embodiment (1) shown in FIG.

FIG. 14 shows a HUD according to the embodiment (7).
5 is a flowchart showing the operation of the device. First, in step 61, the reception status detecting means 53 fetches a radio wave signal received by the GPS receiver 53, and determines whether or not the positioning accuracy E of the received GPS satellite is larger than a value β required for accurate positioning. (The smaller the β, the higher the positioning accuracy).

If the positioning accuracy E is larger than the value β required for accurate positioning, the process proceeds to step 62, and it is determined whether the positioning accuracy E at the time of reception is larger than β even in the previous measurement.

If the positioning accuracy E is not larger than β at the time of the previous measurement (when the positioning accuracy E is equal to or smaller than β), it is necessary to notify that the reception state is bad. The receiving state detecting means 53 sends a control signal to the display image blinking means 54 to blink the display image of the HUD device main body 15, and then, in step 64, performs a counting process for T seconds and holds the state.

In step 62, if the positioning accuracy E is larger than β at the time of the previous measurement, the display image should have already flickered, so the process jumps to step 64 and holds the blinking state for T seconds. In step 65, it is determined again whether the positioning accuracy E is larger than β. At this time, if the positioning accuracy E is larger than β, the process returns to step 62 to determine whether or not the positioning accuracy E is larger than β even at the previous measurement. The loop of 62, step 64 and step 65 is circulated, and the state of blinking the display image is maintained.

On the other hand, if it is determined that the positioning accuracy E is not larger than β, the process proceeds from step 65 to step 66, where the input to the display 18 is turned on in the normal state, and the display image is displayed in the normal state. Return to

According to the HUD device according to the embodiment (7), when the reception status from the GPS satellites is poor, the driver can be notified of the poor reception status by blinking display on the HUD device. Can prevent the vehicle from traveling in the wrong direction.

Next, the HUD device according to the embodiment (8) will be described. The HUD device according to the embodiment (8) includes the number of GPS satellites receiving radio waves and the number of received GPS satellites.
A reception status detecting means for detecting the positioning accuracy of the satellite is provided, and a display means for notifying the deterioration of the reception status when the reception status detection means detects that the reception status is deteriorating.

FIG. 15 shows a HUD according to the embodiment (8).
FIG. 2 is a block diagram schematically showing the configuration of the device,
The configuration of the apparatus main body 15 is the same as that of the embodiment (2) shown in FIG.
Is the same as the HUD device according to the above.

In the present embodiment, when the reception state from the GPS satellite 51 is poor, a display for notifying that the reception state is bad is made by the HUD device.

In the present embodiment, the GPS receiver 5
2 is connected to the GPS receiver 52 to receive a signal related to the reception status of the GPS receiver 2.
The display means 55 is connected to the receiver 52. Further, the display means 55 and the display 18 are connected so that the display of the specific display image can be controlled.

FIG. 16 shows a HUD according to the embodiment (8).
5 is a flowchart showing the operation of the device. First, in step 71, the reception status detecting means 53 fetches a radio wave signal received by the GPS receiver 53, and determines whether or not the positioning accuracy E at the time of reception is larger than a value β required for accurate positioning. Do.

If the positioning accuracy E is larger than the value β required for accurate positioning, the process proceeds to step 72, and it is determined whether the positioning accuracy E at the time of reception is larger than β even in the previous measurement.

Then, the process proceeds to a step 73, wherein it is determined whether or not the positioning accuracy E is larger than β even in the previous measurement. If the positioning accuracy E is not larger than β at the time of the previous measurement, it is necessary to notify that the reception condition of the GPS radio wave is bad. In step 74, a count process for T seconds is performed, and the state is maintained.

Next, in step 75, it is again determined whether or not the positioning accuracy E is larger than β. If the positioning accuracy E is not larger than β, the display of the HUD device is returned to the normal display. On the other hand, if the positioning accuracy E is larger than β, the process returns to step 72, and it is determined whether or not the positioning accuracy E is larger than β even in the previous measurement. And step 75
And the display of the letter W is continued.

According to the HUD device according to the embodiment (8), when the reception condition from the GPS satellite is poor, the driver can be notified of the poor reception condition by displaying on the HUD device, and the driver can be notified. It is possible to prevent the vehicle from traveling in the wrong direction.

Next, the HUD device according to the embodiment (9) will be described. The HUD device according to the embodiment (9) is a raindrop sensor for detecting raindrops, and a fourth display position for moving the display position of the display image out of the wiping range of the wiper when the raindrop sensors detect raindrops. And changing means.

FIG. 17 shows a HUD according to the embodiment (9).
FIG. 2 is a block diagram schematically showing the configuration of the device,
The configuration of the apparatus main body 23 is the same as that of the embodiment (2) shown in FIG.
Is the same as the HUD device according to the above.

In the present embodiment, the signal output from the raindrop sensor 61 is taken into the fourth display position changing means 62 to detect the rainy state, and the display image of the HUD device is moved out of the wiping range of the wiper.

In the present embodiment, the raindrop sensor 61
Display position changing means 6 for receiving a signal from
2 is connected to the raindrop sensor 61, and the motor drive circuit 22 is connected to the fourth display position changing means 62. HUD
The method of connecting the device main body 23 to the motor drive circuit 22 is the same as that of the HUD device according to the embodiment (2) shown in FIG.

FIG. 18 shows a HUD according to the embodiment (9).
5 is a flowchart showing the operation of the device. First, in step 81, the fourth display position changing means 62 takes in a signal from the raindrop sensor 61 and determines whether or not raindrops have been detected. Then, the process proceeds to a step 82, wherein it is determined whether or not raindrops have been detected in the previous measurement.

If no raindrop was detected during the previous measurement, the display image needs to be moved. Therefore, the process proceeds to step 83, where the fourth display position changing means 62 sends the motor A27 and the motor B28 to the motor drive circuit 22. Is output (step 84), and the displayed image is moved out of the wiping range of the wiper.
Performs a counting process for T seconds, and holds the state.

The following is the same as in the case of the HUD device according to the embodiment (2) shown in FIG. 4 except that the judgment in step 86 is whether or not raindrops are detected. Is omitted.

According to the HUD device of the embodiment (9), when the wiper is operating in a rainy state, the display image moves out of the hard-to-see wiper wiping range, and the driver changes the display image. Clearly visible, H
It is possible to easily recognize information from the UD device and drive safely.

Next, the HUD device according to the embodiment (10) will be described. The HUD device according to the embodiment (10) is provided with a fifth display position changing means for detecting the operation of the wiper and moving the display position of the display image out of the wiping range of the wiper. FIG. 11 is a block diagram schematically showing a configuration of a HUD device according to an embodiment (9). The configuration of a HUD device main body 23 is the same as that of the HUD device according to the embodiment (2) shown in FIG.

In this embodiment, the wiper switch 64
The on / off signal of the HUD device is taken into the fifth display position changing means 65 to detect a state in which the wiper is operating (rainy weather or the like), and to move the display image of the HUD device out of the wiping range of the wiper.

In this embodiment, the fifth display position changing means 65 is connected to the wiper switch 64 to receive the on / off signal of the wiper switch 64, and the fifth display position changing means 65 is connected to the motor drive circuit. 22 are connected. Motor drive circuit 22 of HUD device main body 23
The connection method is the same as that of the HUD device according to the embodiment (2) shown in FIG.

FIG. 20 shows an HU according to the embodiment (10).
6 is a flowchart illustrating the operation of the D device. First, in step 91, the fifth display position changing means 65 receives an on / off signal of the wiper switch 64, and determines whether or not the wiper is operating. Then, the process proceeds to a step 92, wherein it is determined whether or not the wiper has been operated at the time of the previous measurement.

If the wiper has not been operated at the time of the previous measurement, the display image needs to be moved, so the process proceeds to step 93, where the fifth display position changing means 65 sends the motor A27 and the motor A to the motor drive circuit 22. A control signal for driving B28 is output (step 94), and the display image is moved out of the wiping range of the wiper. In step 95, a count process for T seconds is performed, and the state is maintained.

The following is the same as the case of the HUD device according to the embodiment (2) shown in FIG. 4 except that the judgment in step 96 is whether or not the wiper is operating. Description is omitted.

According to the HUD device of the embodiment (10), when the wiper is operating, the displayed image moves out of the hard-to-see wiper wiping range, and the driver can clearly see the displayed image. It is possible to easily recognize information from the HUD device and drive safely.

Next, the HUD device according to the embodiment (11) will be described. The HUD device according to the embodiment (11) includes sixth display position changing means for detecting the operation of the defroster and moving the display position of the display image to a position near the blowing position of the defroster on the windshield with less fogging. I have.

FIG. 21 shows an HU according to the embodiment (11).
FIG. 2 is a block diagram schematically showing a configuration of a D device,
The configuration of the D device main body 23 is the same as that of the HUD device according to the embodiment (2) shown in FIG.

In this embodiment, the defroster switch 6
The on / off signal of 7 is taken into the sixth display position changing means 68 to detect a state in which the defroster is operating (a state in which the windshield is fogged), and to display the display image of the HUD device near the blowing position of the defroster. Move.

In the present embodiment, the sixth display position changing means 68 is connected to the defroster switch 67 to receive the ON / OFF signal of the defroster switch 67, and the sixth display position changing means 68 is connected to the motor drive circuit. 22
Is connected. The method of connecting the HUD device main body 23 to the motor drive circuit 22 is the same as that of the embodiment (2) shown in FIG.
This is the same as in the case of the HUD device according to.

FIG. 22 shows an HU according to the embodiment (11).
6 is a flowchart illustrating the operation of the D device. First, in step 101, the sixth display position changing means 68 captures the on / off signal of the defroster switch 67,
It is determined whether the defroster is operating. continue,
Proceeding to step 102, it is determined whether or not the defroster was operating at the time of the previous measurement.

If the defroster was not operating at the time of the previous measurement, it is necessary to move the display image.
Proceeding to step 103, the sixth display position changing means 68
Are connected to the motor drive circuit 22 by the motor A27 and the motor B2.
8 is output (step 10).
4), the display image is moved to a position near the blowing position of the defroster, and a counting process for T seconds is performed in step 105, and the state is maintained.

Hereinafter, the judgment in step 106 is as follows.
FIG. 4 except that the defroster is activated or not.
Since it is the same as the case of the HUD device according to the embodiment (2) shown in FIG.

According to the HUD device of the embodiment (11), when the windshield is fogged and the display image is difficult to see at the normal display position, the display image is moved to the vicinity of the unfogged defroster blowing position of the windshield. However, the driver can clearly see the displayed image, and can easily recognize the information from the HUD device and drive safely.

Next, the HUD device according to the embodiment (12) will be described. The HUD device according to the embodiment (12) includes an optical sensor that detects the brightness around the vehicle, and when the optical sensor detects a sudden shift from a bright place to a dark place, the HUD apparatus is used in a dark place immediately after the detection. And a first display image brightness control means for displaying at a brightness higher than the optimum brightness and thereafter gradually reducing the brightness to the optimum brightness in a dark place.

FIG. 23 shows an HU according to the embodiment (12).
FIG. 2 is a block diagram schematically showing a configuration of a D device,
The configuration of the D device main body 15 is the same as that of the HUD device according to the embodiment (1) shown in FIG.

In the present embodiment, the signal from the optical sensor 71 is taken into the first display brightness control means 72, and when the light suddenly moves from a bright place to a dark place, for example, when entering the tunnel from outside the tunnel. Then, the degree of the change in the light intensity is detected, and the brightness of the display image is gradually changed to a brightness (a brightness lower than usual) that is easy to see even in the tunnel.

In this embodiment, in order to receive a signal from the optical sensor 71, the first display brightness control means 72
Is connected to the optical sensor 71 and the first display brightness control means 7
2, a display brightness adjusting device 74 is connected. The display brightness control device 74 is connected to the display 18 of the HUD device main body 15.
, And its brightness can be adjusted by a change in voltage or the like.

FIG. 24 shows an HU according to the embodiment (12).
FIG. 25 is a flowchart showing the operation of the D device, and FIG. 25 is a graph showing the relationship between the luminance of a display image displayed by the HUD device and time.

First, in step 111, the first display luminance control means 72 takes in the signal of the optical sensor 71, and
Change in light intensity, i.e. the change value I of the optical sensor current is determined whether the predetermined value-gamma ₁ is smaller than or. When the change value I of the photosensor current-gamma ₁ is smaller than will say entered from outside the tunnel in the tunnel. Value of-gamma ₁ is determined by actual experiment.

[0148] When the change value I of the photosensor current-gamma ₁ is smaller than, that is, when entering from outside the tunnel in the tunnel, in step 112, the first display luminance control unit 72 first in the display brightness adjustment device 74 outputs a control signal D _1, the display brightness control device 74 in accordance with the control signal D _1, as shown in FIG. 25, lowering the brightness of the display image in the course t ₁ seconds from L ₁ to L _2. Next, in step 113, the first display luminance control unit 72 outputs the following control signals D ₂ to display brightness control device 74, display brightness control device 7
4 in accordance with the control signal D _2, dropping from more L ₂ the brightness of the display image in the course of t ₂ seconds L _3. In step 114, the first display luminance control unit 72 outputs the following control signals D ₃ to the display brightness control device 74, in accordance with the display brightness adjusting device 74 and the control signal D _3, the luminance of the display image L ₃
To keep.

[0149] Next, in step 115, as in the case of early, change value I of the optical sensor current is determined whether the predetermined value-gamma ₁ is smaller than or. When the change value I of the optical sensor current is not less than-gamma _1, because the car is not yet available from the tunnel, the process returns to step 114, the brightness of the display image L
Keep at ₃ . Step 11 unless the car leaves the tunnel
Loop circulates in 4 and step 115, keeps the luminance of the display image L _3.

[0150] When the change value I of the photosensor current-gamma ₁ is smaller than, the exiting from the tunnel, the first display luminance control unit 72 next controls the display brightness adjusting device 74 signals D ₄
The display brightness adjusting device 74 returns the brightness of the display image from L ₃ to the display brightness L ₁ outside the tunnel during t ₃ seconds according to the control signal D ₄ .

According to the HUD device of the embodiment (12), when the display image is difficult to see when the user enters the tunnel from outside the tunnel, the brightness is gradually reduced to a display brightness that is easy to see, so that the driver can easily display the display image. Visible and HU
Driving can be performed safely by easily recognizing information from the D device.

Next, the HUD device according to the embodiment (13) will be described. The HUD device according to Embodiment (13) includes an optical sensor for detecting the brightness around the vehicle, and when the optical sensor detects a sudden shift from a dark place to a bright place, immediately after the detection, the light in a bright place. And a second display image brightness control means for displaying the image darker than the optimum brightness and then gradually increasing the brightness to the optimum brightness in a bright place.

FIG. 26 shows an HU according to the embodiment (13).
FIG. 2 is a block diagram schematically showing a configuration of a D device,
The configuration of the D device main body 15 is the same as that of the HUD device according to the embodiment (1) shown in FIG.

In the present embodiment, the signal from the optical sensor 71 is taken into the second display brightness control means 73, and the signal is suddenly moved from a dark place to a bright place, for example, when going out of a tunnel from inside a tunnel. , The intensity of the light is detected, and the HUD
The brightness of the display image of the device is changed to a brightness that is easy to see even outside the tunnel (higher brightness than inside the tunnel).

In this embodiment, the second display brightness control means 73 receives the signal from the optical sensor 71.
Is connected to the optical sensor 71 and the second display brightness control means 7
3 is connected to a display brightness adjusting device 74. The display brightness control device 74 is connected to the display 18 of the HUD device main body 15.
, And its brightness can be adjusted by a change in voltage or the like.

FIG. 27 shows an HU according to the embodiment (13).
FIG. 28 is a flowchart showing the operation of the D device, and FIG. 28 is a graph showing the relationship between the luminance of a display image displayed by the HUD device and time.

First, in step 121, the second display luminance control means 73 takes in the signal of the optical sensor 71 and
Change in light intensity, i.e. the change value I of the optical sensor current is determined whether or not a predetermined greater value gamma _2. When the change value I of the optical sensor current is greater than gamma ₂ I will say exiting the tunnel outside from the tunnel. gamma ₂ values determined by actual experiment.

When the change value I of the optical sensor current is larger than γ ₂ , that is, when the current goes out of the tunnel from inside the tunnel,
In step 122, the second display brightness control means 73
In accordance with the control signal D ₅ is the first control signal D ₅ outputs, display brightness control device 74 to the display luminance adjustment device 74,
As shown in FIG. 28, it increases the brightness of the display image in the course of t ₄ seconds L ₄ to L _5. Next, in step 123, the first display luminance control means 72 sets the display luminance
4 to output the next control signal D ₆ ,
In accordance with the control signal D _6, raising the further L ₅ the brightness of the display image in the course of t ₅ seconds L _6. In step 124, the first display luminance control unit 72 outputs the following control signals D ₇ to the display brightness control device 74, the display brightness adjusting device 74 in accordance with the control signal D _7, the luminance of the display image L ₆ To keep.

[0159] Next, in step 125, as in the case of early, change value I of the optical sensor current is determined whether or not a predetermined greater value gamma _2. The change value I of the optical sensor current is γ
If not greater than ₂ , the car is outside the tunnel, so
Returning to step 124, it keeps the luminance of the display image L _6. As long as the car is outside the tunnel, circulating the loop of steps 124 and step 125, it keeps the luminance of the display image L _6.

If the change value I of the optical sensor current is larger than γ ₂ , the vehicle has entered the tunnel again, and the first display luminance control means 72 outputs the next control signal D ₈ to the display luminance adjusting device 74. The display brightness adjusting device 74 controls the control signal D _8.
, The luminance of the display image is returned to the display luminance L ₄ in the tunnel for t ₆ seconds. When entering the tunnel, the display luminance may be gradually reduced under the same conditions as in the case of the HUD device according to Embodiment (12).

According to the HUD device of the embodiment (13), when the display image of the HUD device is difficult to see from the inside of the tunnel to the outside of the tunnel, the brightness is gradually increased to a display brightness that is easy to see. Can be easily visually recognized, and information can be easily recognized by the HUD device, and the vehicle can be safely driven.

[Brief description of the drawings]

FIG. 1 is a block diagram schematically showing a configuration of a HUD device according to Embodiment (1) of the present invention.

FIG. 2 is a flowchart showing an operation of the HUD device according to Embodiment (1).

FIG. 3 is a block diagram schematically showing a configuration of a HUD device according to Embodiment (2).

FIG. 4 is a flowchart showing an operation of the HUD device according to Embodiment (2).

FIG. 5 is a block diagram schematically showing a configuration of a HUD device according to a third embodiment.

FIG. 6 is a flowchart showing an operation of the HUD device according to Embodiment (3).

FIG. 7 is a block diagram schematically showing a configuration of a HUD device according to Embodiment (4).

FIG. 8 is a flowchart showing an operation of the HUD device according to Embodiment (4).

FIG. 9 is a block diagram schematically showing a configuration of a HUD device according to Embodiment (5).

FIG. 10 is a flowchart showing an operation of the HUD device according to Embodiment (5).

FIG. 11 is a block diagram schematically showing a configuration of a HUD device according to Embodiment (6).

FIG. 12 is a flowchart showing an operation of the HUD device according to Embodiment (6).

FIG. 13 is a block diagram schematically showing a configuration of a HUD device according to Embodiment (7).

FIG. 14 is a flowchart showing an operation of the HUD device according to Embodiment (7).

FIG. 15 is a block diagram schematically showing a configuration of a HUD device according to an embodiment (8).

FIG. 16 is a flowchart showing an operation of the HUD device according to Embodiment (8).

FIG. 17 is a block diagram schematically showing a configuration of a HUD device according to Embodiment (9).

FIG. 18 is a flowchart showing an operation of the HUD device according to Embodiment (9).

FIG. 19 is a block diagram schematically showing a configuration of a HUD device according to an embodiment (10).

FIG. 20 is a flowchart showing an operation of the HUD device according to Embodiment (10).

FIG. 21 is a block diagram schematically showing a configuration of a HUD device according to an embodiment (11).

FIG. 22 is a flowchart showing an operation of the HUD device according to Embodiment (11).

FIG. 23 is a block diagram schematically showing a configuration of a HUD device according to Embodiment (12).

FIG. 24 is a flowchart showing an operation of the HUD device according to Embodiment (12).

FIG. 25 is a graph showing a relationship between luminance and time of a display image displayed by the HUD device according to Embodiment (12).

FIG. 26 is a block diagram schematically showing a configuration of a HUD device according to Embodiment (13).

FIG. 27 is a flowchart showing an operation of the HUD device according to Embodiment (13).

FIG. 28 is a graph showing a relationship between luminance and time of a display image displayed by the HUD device according to Embodiment (13).

FIG. 29 is a cross-sectional view schematically showing a conventional HUD device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ABSECU 12 1st display source ON / OFF control means 15, 23 HUD device main body 18, 25 Display (display source) 19, 29 Combiner 21 1st display position change means 31 Speed sensor 32 Acceleration sensor 33 2nd Display source on / off control means 36 Second display position changing means 42 Gear range detecting means 43 Third display source on / off control means 46 Third display position changing means 53 Reception state detecting means 54 Display image blinking means 55 Display Means 61 Raindrop sensor 62 Fourth display position changing means 64 Wiper switch 65 Fifth display position changing means 67 Defroster switch 68 Sixth display position changing means 71 Optical sensor 72 First display luminance adjusting means 73 Second display Brightness adjustment means

Claims (13)

[Claims] 1. A head-up display device comprising: a display source for displaying information; and a combiner for displaying a display image emitted from the display source in a field of view in front of a driver's seat. A first display source on to turn off the input to the display source when being output;
A head-up display device comprising an off control means. 2. A display source for displaying information, a combiner for displaying a display image emitted from the display source in a field of view in front of a driver's seat, and a display image moving device for moving a display position of the display image. When the ABS control signal is output in the head-up display device configured by
A head-up display device comprising first display position changing means for changing a display position of the display image. 3. An acceleration for measuring acceleration in a head-up display device including a display source for displaying information and a combiner for displaying a display image emitted from the display source in a field of view in front of a driver's seat. Measuring means, and a second display source on / off control means for turning off an input to the display source when a rapid acceleration or a rapid deceleration state is detected by the acceleration measuring means. Head-up display device. 4. A display source for displaying information, a combiner for displaying a display image emitted from the display source in a field of view in front of a driver's seat, and a display image moving device for moving a display position of the display image. And a second display position for changing a display position of the display image when a rapid acceleration or a rapid deceleration state is detected by the acceleration measuring device. A head-up display device comprising: a change unit. 5. A head-up display device comprising: a display source for displaying information; and a combiner for projecting a display image emitted from the display source into a field of view in front of a driver's seat. Gear range detection means for detecting a gear range based on the input signal, and third display source on / off control means for turning off an input to the display source when the gear range detection means detects a reverse gear range. A head-up display device. 6. A display source for displaying information, a combiner for displaying a display image emitted from the display source in a field of view in front of a driver's seat, and a display image moving device for moving a display position of the display image. A gear range detecting means for detecting a gear range based on a control signal of a transmission, and a display position of the display image when the gear range detecting means detects a gear range in a high-speed running state. And a third display position changing means for changing the display position. 7. A head-up display device comprising: a display source for displaying information; and a combiner for displaying a display image emitted from the display source in a field of view in front of a driver's seat. Reception status detection means for detecting the number of GPS satellites present and the positioning accuracy of the reception GPS satellites; and display image flashing means for flashing the display image when the reception status detection means detects that the reception status is deteriorating. And a head-up display device. 8. A head-up display device comprising: a display source for displaying information; and a combiner for displaying a display image radiated from the display source in a field of view in front of a driver's seat. Reception status detection means for detecting the number of GPS satellites present and the positioning accuracy of the reception GPS satellites; and display means for notifying the deterioration of the reception status when the reception status detection means detects that the reception status is deteriorating. A head-up display device comprising: 9. A display source for displaying information, a combiner for displaying a display image emitted from the display source in a field of view in front of a driver's seat, and a display image moving device for moving a display position of the display image. A raindrop sensor for detecting raindrops, and a fourth display position changing means for moving the display position of the display image outside the wiping range of the wiper when the raindrop sensor detects raindrops. And a head-up display device. 10. A display source for displaying information, a combiner for displaying a display image emitted from the display source in a field of view in front of a driver's seat, and a display image moving device for moving a display position of the display image. In the head-up display device configured as described above, the operation of the wiper is detected, and the display position of the display image is moved out of the wiping range of the wiper.
A head-up display device comprising a display position changing means. 11. A display source for displaying information, a combiner for displaying a display image radiated from the display source in a field of view in front of a driver's seat, and a display image moving device for moving a display position of the display image. And a sixth display position changing means for detecting the operation of the defroster and moving the display position of the display image to a position near the blowing position of the defroster with less fogging on the windshield. A head-up display device characterized by the above-mentioned. 12. A display source for displaying information, a combiner for displaying a display image emitted from the display source in a field of view in front of a driver's seat, and a brightness adjustment device for adjusting brightness of the display image. In the configured head-up display device, when an optical sensor that detects the brightness around the car, and when the optical sensor detects a sudden movement from a bright place to a dark place, immediately after the detection, the optimal position in a dark place A head-up display device comprising: first display image luminance control means for displaying a luminance higher than the luminance and thereafter gradually decreasing the luminance to an optimal luminance in a dark place. 13. A display source for displaying information, a combiner for displaying a display image radiated from the display source in a field of view in front of a driver's seat, and a brightness adjusting device for adjusting brightness of the display image. In the configured head-up display device, an optical sensor for detecting the brightness around the vehicle, and when the optical sensor detects a sudden movement from a dark place to a bright place, immediately after the detection, the optimal in a bright place A head-up display device comprising: a second display image luminance control means for displaying a display darker than the luminance and thereafter gradually increasing the luminance to an optimum luminance in a bright place.