JP2020187294A - Display control device of vehicle - Google Patents

Abstract

To provide a display control device of a vehicle that can display display information by a display device in a state easy-to-see to a driver even when a vehicle rolls on a curve or an inclined road.SOLUTION: A vehicle 1 is equipped with an HUD that shows display information to a driver P using a virtual image 3 from a light source 6. The light source 6 is provided to be rotatable by a motor 7. A display control unit 9 calculates a roll angle of the vehicle 1 based on data on lateral acceleration from an acceleration sensor 12. The display control unit 9 calculates a visual line inclination angle based on information analyzed from an image of the driver P captured by a camera 11 of a DSM 10. The display control unit 9 controls and rotates the motor 7 so as to display corrected display information in which the display information by the light source 6 is displayed in a state easy-to-see to the driver, based on the lateral acceleration and the visual line inclination angle of the driver P.SELECTED DRAWING: Figure 1

Description

The present invention relates to a vehicle display control device.

As a vehicle display device, for example, in a virtual image display of a head-up display (hereinafter referred to as HUD), when the vehicle is turning a curve or an intersection, the HUD is relative to the exit direction of the curve or the direction of the road. There is a technique to solve the situation where the display position of the virtual image is shifted.

In addition, when the vehicle is tilted due to a curve or the like, if the image of the scenery outside the vehicle captured by the camera of the vehicle is displayed as it is on the HUD, it will be displayed in a state of being further tilted with respect to the actual scenery outside the vehicle. Therefore, it may be difficult for the driver to see. In order to solve this problem, there is a technology that allows the driver to see the vehicle in the same tilted state as the scenery outside the vehicle by displaying it as an image in which the tilt is returned to the tilt angle of the vehicle.

However, in the prior art, when the vehicle rolls on a curve and the vehicle is tilted, the vehicle cannot be kept horizontal with respect to the road, so that the display information such as the running information by the HUD displayed on the vehicle is displayed. The virtual image is displayed tilted with respect to the horizontal direction. For this reason, this display state becomes difficult for the driver to see, and in particular, it may be difficult to read character information or the like.

This is a factor that makes it even more difficult to see because the driver himself may lean inward on the curve or on the contrary due to the centrifugal force received by the curve. That is, in this case, since the driver moves differently from the tilted state of the vehicle, the display state of the virtual image does not match the tilted state of the driver's line of sight, which makes it difficult for the driver to see the display. Sometimes.

Japanese Patent No. 6361382

The present invention has been made in consideration of the above circumstances, and an object of the present invention is to display information displayed by a display device in a state that is easy for the driver to see even when the vehicle is rolled on a curve or an inclined road. The purpose is to provide a display control device for a vehicle.

The vehicle display control device according to claim 1 includes a display device (6) provided in the vehicle for displaying display information including character information, and a display control unit (9) for giving a signal of the display information to the display device. , 9a), a camera (11) that captures at least the upper part of the face of the driver of the vehicle, and a line-of-sight inclination detection unit (10) that detects the line-of-sight inclination angle of the driver from the image taken by the camera. The display control unit includes an acceleration detection unit (12) for detecting the lateral acceleration received by the vehicle, and the display control unit detects the value of the lateral acceleration detected by the acceleration detection unit and the line-of-sight inclination angle detection unit. Based on the line-of-sight inclination angle of the driver, the corrected display information obtained by correcting the display information by the display device to a state that is easy for the driver to read is displayed.

For example, when the vehicle turns a curve and there is lateral acceleration detected by the acceleration detection unit, the vehicle is tilted according to the magnitude of the lateral acceleration. On the other hand, when driving a curve, the driver leans in the same manner as the vehicle due to lateral acceleration, leans horizontally to cancel the tilt of the vehicle, or conversely travels on a curve. In some cases, the body is tilted inward of the curve to turn the handle.

On the other hand, the display control unit recognizes that the vehicle is tilted due to a curve or the like from the lateral acceleration received by the vehicle, and the line-of-sight tilt angle detection unit further tilts the driver by the line-of-sight tilt angle. Recognize that you are in the state of looking at the display device. Correspondingly, the display control unit corrects the display information displayed by the display device so that the driver can easily read the information.

As a result, even when the driver's line of sight is tilted in response to a state in which the vehicle is tilted, such as when driving on a curve, the display device can be displayed in a state that is easy for the driver to see, and the display information is temporarily displayed. It will be possible to eliminate situations that make it difficult to see.

Schematic block diagram showing the first embodiment Diagram showing the flow of display control The figure which shows the flow of the detection of the line-of-sight inclination angle θ Diagram showing the flow of correction of display information Operational diagram of roll angle calculation Operation explanatory diagram 1 Operation explanatory diagram part 2 The figure which shows the flow of the display control which shows the 2nd Embodiment The figure which shows the control flow of the 1st pattern Operation explanatory diagram of the first pattern The figure which shows the control flow of the 2nd pattern Operation explanatory diagram of the second pattern The figure which shows the control flow of the 3rd pattern Explanatory drawing of the action of the third pattern Schematic configuration diagram showing a third embodiment Operation explanatory diagram 1 Operation explanatory diagram part 2

(First Embodiment)
Hereinafter, the first embodiment of the present invention will be described with reference to FIGS. 1 to 7.
FIG. 1 shows an overall schematic configuration, and a HUD for displaying a virtual image 3 as a display unit is provided in the vehicle interior of the vehicle 1 at a position in front of the driver P through the windshield 2. The HUD is composed of a combiner 4, a reflecting mirror 5, and a light source 6 as a display device, and displays character information and the like displayed on the light source 6 as a virtual image 3. A combiner 4 is arranged on the windshield 2, and a reflector 5 is provided at a lower position.

The light source 6 displays display information by light emission and projects light, and includes, for example, a projector LCOS, a liquid crystal LCD, and a laser projector. The display information emitted and displayed by the light source 6 is reflected by the reflecting mirror 5, then reflected again by the combiner 4 and projected toward the driver P. The driver P appears that the display information of the light source 6 is displayed as a virtual image 3 in front of the vehicle via the combiner 4. The light source 6 is rotatably provided around the axis in the light projection direction, and the rotation position is controlled by a motor 7 arranged at the rear.

The control device 8 includes a display control unit 9 that controls the light source 6 and the motor 7, and a driver status monitor (hereinafter referred to as DSM) 10 that detects the state of the driver. The DSM 10 determines the state of the driver P by using the face recognition technique from the image information of the neck H of the driver P existing in the photographing area Z by the camera 11 provided in the vehicle interior. In this embodiment, the DSM 10 detects the positions of both eyes from the information about the driver P and functions as a line-of-sight inclination angle detection unit.

Further, in this embodiment, in the display control unit 9 of the control device 8, the inclination angle of the line E connecting both eyes of the driver P is based on the position information of both eyes regarding the line-of-sight inclination of the driver P from the DSM 10. Is calculated as the line-of-sight inclination angle θ. Further, an acceleration sensor 12 for detecting lateral acceleration in the left-right direction with respect to the traveling direction of the vehicle 1 is provided so as to input a detection signal to the display control unit 9 of the control circuit 8.

The acceleration sensor 12 as the acceleration detection unit is a normal acceleration sensor, and can measure the acceleration in the left-right direction of the vehicle 1 as the lateral acceleration G as the detection direction. Regarding the left-right direction, it is possible to detect whether the roll direction is left or right according to the value of the detection signal of the acceleration sensor 12. A steering sensor can also be used as a method for detecting the left and right roll directions. That is, the detection signal of the steering sensor indicates whether the steering is operated to the left or right.

Next, the operation of the above configuration will be described with reference to FIGS. 2 to 6.
FIG. 2 shows the flow of operation of display control by the display control unit 9 of the control device 8. When the display control unit 9 starts the control operation, the display control unit 9 stands by while determining in step S100 whether or not the value of the lateral acceleration G detected by the acceleration sensor 12 has been detected.

When the vehicle 1 approaches a curved or sloping road and the acceleration sensor 12 detects the lateral acceleration G, the display control unit 9 proceeds to step S110 and the vehicle 1 is based on the value of the lateral acceleration G at this time. The roll angle φ of is calculated. Here, the display control unit 9 calculates the roll angle φ of the vehicle 1 corresponding to the lateral acceleration G according to the equation (1) of FIG. Equation (1) is a rewrite of the generally known equation (2) with respect to the roll angle φ.

Equation (2) indicates that the roll rigidity component of the vehicle 1 on the left side and the roll moment component on the right side are equal, and when this is solved for the roll angle φ, the equation (1) is obtained. Here, as for the roll rigidity component, Kφf · φ is the front wheel suspension / roll rigidity, and Kφr · φ is the rear wheel suspension / roll rigidity component. As for the roll moment component, G · Ws · hs caused by the lateral acceleration G is the centrifugal force component, and Ws · hs · φ caused by the roll angle φ is the gravity effect component. Ws is the weight of the vehicle body, and hs is the distance between the vertical axes.

Of these, the lateral acceleration G is detected by the acceleration sensor 12, Kφf is determined by the front wheel spring constant, the stabilizer spring constant, and the tread, and Kφr is determined by the rear wheel spring constant, the stabilizer spring constant, and the tread.

Therefore, since Kφf, Kφr, Ws, and hs are constants determined by the vehicle, these numerical values can be stored in advance, and the lateral acceleration G can be detected by the acceleration sensor 12 to obtain the equation ( The roll angle φ can be calculated from 1).

Next, the display control unit 9 proceeds to step S120 and detects the line-of-sight inclination angle θ of the driver P at this time based on the information on the state of the driver P from the DSM 10. Here, the line-of-sight inclination angle θ is the inclination angle of the line E connecting the pupils of both eyes of the driver P. Therefore, the line-of-sight tilt angle θ can be detected as the tilt information of the neck H obtained by the face recognition process of the driver P by the DSM 10 or the tilt angle of the line E connecting both eyes.

Specifically, the display control unit 9 and the DSM 10 carry out the process of step S120 in FIG. 2 according to the flow of detecting the line-of-sight inclination angle θ shown in FIG. First, in step S200, the DSM 10 performs a process of recognizing the driver's face from the image data captured by the camera 11. When the face can be recognized and YES in step S200, the DSM 10 next detects the tendency of the driver P's neck H based on the information recognized in step S210.

When the tilt state of the neck H of the driver P can be detected by the DSM 10 in step S210, the display control unit 9 then shifts to step S220 and shifts to the tilt angle of the neck H in the tilt state, that is, both eyes. The inclination angle of the connected line E from the horizontal direction is calculated as the line-of-sight inclination angle θ, and the process proceeds to step S130 in FIG.

Next, in step S130, the display control unit 9 corrects the display information for the virtual image 3 by the light source 6 based on the values of the roll angle φ and the line-of-sight inclination angle θ obtained in the processes of steps S110 and S120. Do. The display control unit 9 specifically performs the process of step S130 according to the procedure shown in FIG.

That is, the display control unit 9 first corrects the display information according to the roll angle φ in step S300. This is a process of correcting the display angle of the virtual image 3 displayed in response to the vehicle 1 being tilted according to the roll angle φ so as to match in the horizontal direction. Therefore, the display control unit 9 corrects the display angle of the virtual image 3 with an angle −φ with respect to the roll angle φ.

The display state by this correction is shown, for example, in a state where the vehicle 1 curves to the right as shown in FIG. When the steering ST is rotated to the right, the vehicle 1 receives a lateral acceleration G to the left. As a result, as described above, the vehicle 1 is tilted to the left at the roll angle φ. At this time, the virtual image 3 by the HUD provided in the vehicle 1 is also in a state of being inclined from the horizontal direction to the left at the roll angle φ as shown by the alternate long and short dash line in FIG. Here, for example, the character information of "50 km / h 100 m ahead" and the mark of the right curve are displayed.

On the other hand, the display control unit 9 performs a correction process of tilting the display angle of the virtual image 3 with respect to the vehicle 1 by an angle −φ, so that the virtual image 3x corrected to match the horizontal direction is displayed. Will be able to.

After that, the display control unit 9 performs additional correction processing of the display information according to the line-of-sight inclination angle θ in step S310. This is the virtual image 3 displayed in response to the case where the driver P tilts the body and the neck H separately from this movement when the vehicle 1 is tilted according to the roll angle φ. This is a process of correcting the display angle so as to match the line-of-sight inclination angle θ of the driver P. Therefore, the display control unit 9 corrects the display angle of the virtual image 3 with the line-of-sight inclination angle θ.

The display state by this correction is shown in a state where the vehicle 1 is curved to the right, as also shown in FIG. When the steering ST is rotated to the right, the vehicle 1 receives a lateral acceleration G to the left and is tilted to the left at a roll angle φ. At this time, since the driver P is tilted toward the inside of the curve, the display state of the virtual image 3 appears to be tilted by the amount of the line-of-sight tilt angle θ.

On the other hand, the display control unit 9 performs additional correction processing for inclining the display angle of the virtual image 3 with respect to the vehicle 1 by the line-of-sight inclination angle θ, so that the display angle is corrected to match the line-of-sight direction of the driver P. It becomes possible to display it as a virtual image 3a.

As described above, when the display control unit 9 performs the correction processing of the display of the virtual image 3 with respect to the roll angle φ and the additional correction processing of the display of the virtual image 3 with respect to the line-of-sight inclination angle θ, the process proceeds to step S140 of FIG. The display process is executed according to the content of the correction process. In this case, the display control unit 9 can display the virtual image 3a in the corrected state by controlling the light source 6 to the tilted state corresponding to the correction process by driving the motor 7 to rotate the light source 6. ..

The display operation of the virtual image 3a corrected in this way as described above is conditional on the lateral acceleration G being detected by the acceleration sensor 12, and basically travels on a curve or an inclined road. It is assumed that a roll angle φ is generated at that time. In such a situation, the display of the virtual image 3 is corrected in response to the tilting of the neck H of the driver P so that the driver P can easily see the display.

Therefore, when the lateral acceleration G is substantially zero and the neck H moves due to fatigue of the driver P or the like, or when the neck H is tilted regardless of the driving state, the line-of-sight inclination angle θ is generated. Even if it is, the display of the virtual image 3 is not corrected. That is, if the display of the virtual image 3 is corrected following the inclination of the neck H of the driver P, it may not be easy for the driver P to see.

In such a first embodiment, the light source 6 constituting the HUD is rotatably configured by the motor 7, and the display control unit 9 responds to the lateral acceleration G of the vehicle 1 and the line-of-sight inclination angle θ of the driver P. The virtual image 3a is displayed so that the driver P can easily see the virtual image 3.

As a result, in a state where the lateral acceleration G is received due to traveling on a curve or the like, the virtual image 3a that makes it easier to see the virtual image 3 in response to various changes in the line-of-sight inclination angle θ caused by the tilting of the neck H of the driver P You can see it.

In the above embodiment, the correction process for correcting the display of the virtual image 3 so as to be displayed in the horizontal state according to the roll angle φ of the vehicle 1 due to the lateral acceleration G is performed, but this correction process is omitted. The virtual image 3a can be displayed by correcting the display corresponding to the line-of-sight inclination angle θ, provided that the lateral acceleration G is detected as a non-zero level value.

In addition, since the correction of the display depends on the personal feeling of the driver P, the above correction processing and the additional correction processing can be selectively performed by the driver, and conditions with less discomfort are set. You may try to do it.

Further, instead of correcting the virtual image 3 corresponding to the line-of-sight inclination angle θ itself of the driver P, the virtual image 3 may be corrected by multiplying the line-of-sight inclination angle θ by a coefficient. The correction pattern may be set so that the driver P can select and execute the correction pattern that does not give a sense of discomfort.

(Second Embodiment)
8 to 14 show the second embodiment, and the parts different from the first embodiment will be described below. In this embodiment, when the driver P suddenly tilts his head H on a curve or the like, or when he suddenly turns the steering wheel in response to a sharp curve or danger avoidance, the display is rotated in accordance with this. Rather, the display is restricted so that the driver P can concentrate on visually recognizing the state outside the vehicle that causes such an operation.

For example, if the head H is suddenly tilted according to the situation outside the vehicle, or if the vehicle 1 is suddenly rolled and tilted due to a sudden steering wheel or the like, the rotation display of the virtual image 3 display is too fast, and on the contrary, a person It may be difficult to see with the eyes. In addition, when the steering wheel is suddenly turned by another vehicle, a two-wheeled vehicle, or a person outside the vehicle 1, the virtual image 3 becomes an obstacle in order to confirm a dangerous situation outside the vehicle. In some cases.

Corresponding to the above case, in the present embodiment, the display of the virtual image 3 of the HUD is restricted to be rapidly rotated and displayed corresponding to the roll of the vehicle 1, so that the display is easy for the driver P to see. It is possible to perform limited display processing to perform.

In this case, the following three patterns can be set as the restricted display process.
(1) 1st pattern: a pattern to be displayed with a gradual change (2) 2nd pattern: a pattern to temporarily cancel the change (3) 3rd pattern: a pattern to temporarily erase the display

In this embodiment, the configuration is the same as in the first embodiment. FIG. 8 shows the flow of display control, and the difference from the first embodiment is that steps S105, S125, S132, S134, and S150 are provided.

That is, when YES in step S100, the display control unit 9 shifts to step S105, and here, calculates the rate of change ΔG of the lateral acceleration G per unit time. This is a process for determining whether or not the steering wheel is suddenly turned by the value of the rate of change ΔG of the lateral acceleration G.

After executing step S105, the display control unit 9 executes steps S110 to S120 in the same manner as described above, and in the next step S125, calculates the rate of change Δθ of the line-of-sight inclination angle θ per unit time. This is a process for determining whether or not the line-of-sight inclination angle θ is rapidly changing depending on the value of the rate of change Δθ of the line-of-sight inclination angle θ.

Subsequently, the display control unit 9 executes step S130, and in the next step S132, determines whether or not the value of the rate of change ΔG is within a predetermined range, that is, below a certain level. If the value of the rate of change ΔG is within a predetermined range, it can be determined that the steering wheel is not suddenly turned.

Next, if YES in step S132, the display control unit 9 proceeds to step S134 and determines whether or not the value of the rate of change Δθ is within a predetermined range, that is, below a certain level. If the value of the rate of change Δθ is within a predetermined range, it can be determined that the line-of-sight inclination angle θ has not changed suddenly.
Then, if YES in step S134, the display control unit 9 executes the display process in step S140 as in the first embodiment.

On the other hand, when the display control unit 9 is NO in either step S132 or step S134, that is, when the rate of change ΔG exceeds a certain level or the value of Δθ exceeds a certain level. Since it can be determined that the steering wheel is suddenly turned or the line-of-sight inclination angle θ is suddenly changed, the process proceeds to step S150.

In step S150, the display control unit 9 executes the restricted display process. In step S150, the display control unit 9 executes display processing so as to make it easier for the driver P to grasp the situation outside the vehicle even when the steering wheel is steep, and to eliminate difficulty in recognizing the situation due to a sudden rotation operation. .. Specifically, the one selected and set from the three restricted display processing patterns described above is executed.

First, the first pattern will be described with reference to FIGS. 9 and 10.
In step S400 of FIG. 9, the display control unit 9 rotates the corrected display information created earlier so that the rotation of the display angle from the initial state to the final display state is divided into a plurality of stages and displayed. Divide the angle. After that, in step S410, the display control unit 9 displays the display data by rotating and driving the display data stepwise at predetermined time intervals at the rotation angle divided by the motor 7.

FIG. 10 shows an example of displaying in three stages, for example. First, in the initial display state immediately after the sudden steering wheel operation or immediately after the sudden change in the line-of-sight tilt angle θ, the virtual image 3 remains tilted by the roll angle φ together with the roll of the vehicle 1 without rotating the virtual image 3 immediately. Is displayed in the state of. After that, when a predetermined time elapses, the virtual image 3 is intermediately displayed in the state of the virtual image 3x rotated to the middle stage. Then, in the final display, the virtual image 3a corresponding to the line-of-sight inclination angle θ of the driver P is displayed.

At this time, the virtual image 3 displayed in front of the driver's seat is displayed so that the three display states rotate gently after the rotation operation of the steering ST or a sudden change in the line-of-sight inclination angle θ, and the driver P displays. Since it is displayed in a state where the display does not change suddenly, it is maintained in an easy-to-see state.

Next, the second pattern will be described with reference to FIGS. 11 and 12.
The display control unit 9 holds the corrected display information created earlier in step S500 of FIG. 11 for a certain period of time without rotating the display state in the initial state. After a certain period of time has elapsed, the display control unit 9 displays the final state by executing the rotation of the light source 6 by the motor 7 in step S510.

FIG. 12 shows an example of the above-mentioned restrictive display. First, in the initial display state immediately after the sudden steering wheel operation or immediately after the sudden change in the line-of-sight tilt angle θ, the virtual image 3 does not rotate immediately, but the virtual image 3 accompanies the roll of the vehicle 1 for a certain period of time. It is displayed in a state where it is tilted by the roll angle φ. After a certain period of time has elapsed, the virtual image 3a corresponding to the line-of-sight inclination angle θ of the driver P is displayed.

At this time, the virtual image 3 displayed in front of the driver's seat is temporarily canceled after the rotation operation of the steering ST or after a sudden change in the line-of-sight inclination angle θ, and changes to the final display state after a certain period of time. Will be done. Since the rotation display is temporarily canceled in this way, the situation such as being distracted by the rotation display of the virtual image 3 can be eliminated, and a dangerous situation outside the vehicle 1 can be confirmed. ..

Next, the third pattern will be described with reference to FIGS. 13 and 14.
In step S600 of FIG. 13, the display control unit 9 erases the display state of the previously created correction display information in the initial state, and holds this state for a certain period of time. After a certain period of time has elapsed, the display control unit 9 displays the final state by executing the rotation of the light source 6 by the motor 7 in step S610.

FIG. 14 shows an example of the above-mentioned restrictive display. First, in the initial display state immediately after the sudden steering wheel operation or immediately after the sudden change in the line-of-sight inclination angle θ, the display of the virtual image 3 is once erased and held for a certain period of time. After a certain period of time has elapsed, the virtual image 3a corresponding to the line-of-sight inclination angle θ of the driver P is displayed.

At this time, the virtual image 3 displayed in front of the driver's seat is changed to the final display state after being erased for a certain period of time after the rotation operation of the steering ST or a sudden change in the line-of-sight inclination angle θ. Until a certain period of time elapses, the display disappears, so the situation such as being distracted by the rotating display of the virtual image 3 is resolved, and the dangerous situation outside the vehicle 1 is confirmed. be able to.

According to the second embodiment, when the lateral acceleration G is generated by a sudden steering wheel or the like, or when the line-of-sight inclination angle θ changes suddenly, the display control unit 9 executes the limited display processing. Therefore, it becomes possible to concentrate on safe driving by suppressing the hindrance of driving by the driver P.

In the above embodiment, only one or two patterns of the three patterns of the restrictive display processing may be performed, or a pattern that is easy for the driver P to see can be selected and set. Furthermore, an appropriate pattern can be automatically set and implemented according to the situation.

Further, in the above embodiment, the example corresponding to both the case of a sudden steering wheel and the time of a sudden change of the line-of-sight inclination angle θ is shown, but it corresponds to either the case of a sudden steering wheel or the time of a sudden change of the line-of-sight inclination angle θ. It may be configured so that either one or both can be selectively implemented by the user.

Further, the determination value of the rate of change ΔG for determining the sudden steering state and the determination value of the rate of change Δθ of the sudden line-of-sight inclination angle θ can be set to appropriate values, and are appropriate according to the driver. It may be set to a value.

(Third Embodiment)
15 to 17 show the third embodiment, and the parts different from the first embodiment will be described below. In this embodiment, the display is not corrected by rotating the light source 6 of the HUD by the motor 7, but the pattern of the display data itself output to the light source 6 is converted into a rotated state.

Therefore, as shown in FIG. 15, the light source 6 is fixedly arranged, and the method of rotating the virtual image 3 itself is not adopted. The left-right direction of the light source 6 is arranged in a state corresponding to the left-right direction K of the vehicle. Further, as shown in FIG. 16, for example, the light source 6 includes a large number of display elements 6a arranged in a matrix, and by lighting the display elements 6a in response to the display information, a virtual image 3 is formed in front of the driver's seat. Is displayed.

In this embodiment, when the display correction process is performed to rotate the display by the lateral acceleration G acting on the vehicle 1 on a curve or the like, the display unit 20 is not physically rotated but is displayed. As shown in FIG. 17, the display control unit 9a converts the information to be rotated into a pattern when the rotation is displayed from the left-right direction K by the corresponding angle α corresponding to the roll angle φ or the line-of-sight inclination angle θ. It is possible to carry out the same display as.

Therefore, even with such a third embodiment, the same effect as that of the first embodiment can be obtained.
In addition, as the display device, instead of the light source 6 of the HUD, for example, a display element provided on a dashboard, an instrument panel, or the like can be used.
The restrictive display process of the second embodiment can also be applied to the third embodiment.

(Other embodiments)
The present invention is not limited to the above-described embodiment, and can be applied to various embodiments without departing from the gist thereof. For example, the present invention can be modified or extended as follows.

Instead of displaying by the virtual image 3 of the HUD shown in the first embodiment, a display unit is provided on the instrument panel or the dashboard, and instead of arranging the display unit fixedly, the motor 7 and the drive mechanism are arranged. By doing so, it is possible to configure the structure so that it can be rotated and moved.

In each of the above embodiments, the DSM 10 is used to detect the line-of-sight inclination angle θ of the driver P, but a configuration in which a dedicated line-of-sight inclination angle detection unit for detecting the line-of-sight inclination angle θ is provided without using the DSM 10. It can also be.

In each of the above embodiments, the acceleration sensor 12 is used as the acceleration detection unit, and the roll angle φ is calculated based on the lateral acceleration G. However, the following acceleration detection unit may be used instead. it can. For example, if the amount of expansion and contraction of the left and right suspensions of the vehicle 1 is measured by a position sensor or the like, the amount of expansion and contraction of the left and right suspensions is the height of a triangle, and the tread of the wheel is the width of a triangle, the trigonometric function atan (arc) The roll angle φ is obtained from the tangent).

Although the present disclosure has been described in accordance with the examples, it is understood that the present disclosure is not limited to the examples and structures. The present disclosure also includes various modifications and modifications within an equal range. In addition, various combinations and forms, as well as other combinations and forms that include only one element, more, or less, are also within the scope of the present disclosure.

In the drawing, 1 is a vehicle, 33a is a virtual image, 4 is a combiner, 5 is a reflector, 6 is a light source (display device), 7 is a motor, 8 is a control device, 9 and 9a are display control units, and 10 is a DSM. (Line-of-sight tilt angle detection unit), 11 is a camera, and 12 is an acceleration sensor (acceleration detection unit).

Claims (9)

A display device (6) provided on the vehicle to display display information including text information, and
A display control unit (9, 9a) that gives a signal of the display information to the display device,
A camera (11) that captures at least the upper part of the face of the driver of the vehicle, and
The line-of-sight inclination angle detection unit (10) that detects the line-of-sight inclination angle of the driver from the image taken by the camera, and
It is provided with an acceleration detection unit (12) for detecting the lateral acceleration received by the vehicle.
The display control unit displays information displayed by the display device based on the value of the lateral acceleration detected by the acceleration detection unit and the line-of-sight inclination angle of the driver detected by the line-of-sight inclination detection unit. A vehicle display control device that displays corrected display information corrected to a state that is easy for the driver to read. The display control unit calculates the roll angle of the vehicle from the lateral acceleration detected by the acceleration sensor, corrects the display angle of the display information by the display device, and corrects the display angle of the display information by the display device, and the driver according to the line-of-sight inclination angle. The vehicle display control device according to claim 1, wherein the correction display information is generated by making additional corrections to a display angle that is easy to read. The vehicle display control according to claim 1 or 2, wherein the display control unit (9, 9a) displays the correction display information by the display device in a rotated state by the display device. apparatus. When the line-of-sight tilt angle changes abruptly by a predetermined level or more, the display control unit does not follow the change in the line-of-sight tilt angle and keeps the correction display information displayed by the display device below a certain level. The vehicle display control device according to claim 3, wherein the change is performed. When the line-of-sight inclination angle suddenly changes by a predetermined level or more, the display control unit temporarily cancels the display of the corrected display information by the display device and maintains the display state of the display information. The vehicle display control device according to claim 3, which is performed after a predetermined time. According to claim 3, when the line-of-sight inclination angle changes abruptly by a predetermined level or more, the display control unit temporarily erases the display of the corrected display information by the display device and causes the display to be performed after a predetermined time. The vehicle display control device described. When the display control unit determines that the amount of change in the lateral acceleration corresponds to a state in which the steering wheel is suddenly turned in the vehicle, the display control unit displays the corrected display information by the display device for the lateral acceleration. The vehicle display control device according to claim 3, wherein the change is performed with a change of a certain level or less without following the change of the above. When the display control unit determines that the amount of change in the lateral acceleration corresponds to the state in which the steering wheel is suddenly turned in the vehicle, the display control unit temporarily cancels the display of the correction display information by the display device. The vehicle display control device according to claim 3, wherein the display state of the display information is maintained and the display state is maintained after a predetermined time. When the display control unit determines that the amount of change in the lateral acceleration corresponds to the state in which the steering wheel is suddenly turned in the vehicle, the display control unit temporarily erases the display of the correction display information by the display device. The vehicle display control device according to claim 3, which is performed after a predetermined time.

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