JP2014091361A - Display device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device for vehicle which enables a person only who is driven by necessity to display a tire angle.SOLUTION: In a display device 1 for a vehicle, a driver embarrassing operation which is likely to be performed by a driver who has lost track of the tire angles of a vehicle 100 is detected. When the driver embarrassing operation is detected, a control unit 10 has a tire angle detection part 12 detect a tire angle to be changed by a steering wheel operation and displays the detected current tire angle to a display part 2.

Description

  The present invention relates to a vehicle display device.

  Like a car, in a vehicle in which the driver changes the tire angle (tire angle) by steering the steering wheel (steering angle) and thereby changes the traveling direction, the driver senses the tire angle by steering the steering wheel. Can be grasped. For this reason, in a general vehicle, the tire angle is not displayed by in-vehicle display (for example, Patent Document 1).

JP 2008-254703 A

  However, some people who are not good at driving lose the tire angle. However, it is not desirable for ordinary drivers to display the tire angle only for these people, and even if the display is made, it can be easily predicted that the display will be annoying. .

  An object of the present invention is to provide a display device for a vehicle that can display a tire angle only to a person who needs to display the tire angle.

Means for Solving the Problems and Effects of the Invention

In order to solve the above problems, a vehicle display device according to the present invention includes:
Tire angle detecting means for detecting a tire angle for determining a traveling direction of the vehicle;
Predetermined redo operation premised on a low speed state or a predetermined deceleration operation state that is equal to or lower than a predetermined vehicle speed as a driver embarrassed operation that is likely to be performed by a driver who has lost sight of the tire angle Is set, and perplexed operation detection means for detecting the set driver perplexed operation,
Display means for displaying the detected tire angle on a predetermined display unit when the driver's embarrassed operation is detected;
It is characterized by providing.

  According to the configuration of the present invention, the driver's embarrassed operation that is likely to be performed by a driver who has lost sight of the tire angle is set in advance, and only when the set driver's embarrassed operation is performed. The tire angle is displayed. As a result, the tire angle is displayed only to drivers who are in need, and is not displayed to drivers who do not need them.

  Further, according to the configuration of the present invention, a driver's embarrassed operation that is likely to be performed by a driver who has lost sight of the tire angle is determined as a redo operation performed under a predetermined precondition. As a result, a driver who has lost sight of the tire angle can be identified with higher accuracy, and the number of scenes in which the tire angle display is displayed for a user who does not need the tire angle display can be reduced.

The block diagram which showed simply the structure of the display apparatus for vehicles which is one Embodiment of this invention. The figure explaining the detection of the tire angle in the display apparatus for vehicles of FIG. FIG. 2 is a vehicle interior interior view showing a driver front side of a vehicle on which the vehicle display device of FIG. 1 is mounted. The figure which shows the screen display of the normal time in the screen display part of the display apparatus for vehicles of FIG. The figure which shows the tire angle display in the screen display part of the display apparatus for vehicles of FIG. The figure which shows the setting content set as driver | operator embarrassed operation considered that it is easy to be made by the driver who lost sight of the tire angle. The flowchart which shows the flow of the tire angle display process performed at the time of a driver | operator's embarrassment operation said that it is easy to be made by the driver who lost sight of the tire angle. The flowchart which shows the flow of the tire angle display process performed in the scene which is easy to lose sight of a tire angle. The figure which shows the 1st display example which made the emphasis level of the tire angle display lower than FIG. 4B. The figure which shows the 2nd display example which made the emphasis level of the tire angle display lower than FIG. 4B. The modification of the tire angle display of FIG. 4B. The flowchart which shows the flow of a process at the time of considering a driver | operator's driving skill in the tire angle display process of FIG. The flowchart which shows the flow of a process at the time of considering a driver | operator's driving skill in the tire angle display process of FIG. The figure which shows an example of the manual setting screen of a driver | operator's driving skill. The flowchart which shows an example of the learning process of a driver | operator's driving skill.

  Hereinafter, one embodiment of a display device for vehicles of the present invention is described with reference to drawings.

  As shown in FIG. 1, the display device 1 for a vehicle according to the present embodiment acquires a tire angle information for detecting a tire angle (tire angle) that determines a traveling direction of a vehicle 100 on which the vehicle display device 1 is mounted. 12, a steering wheel angle detector 13 for detecting steering angle information for detecting a steering angle (rotation operation angle) of steering wheel steering performed by the driver to vary the tire angle, and a shift performed by the driver. A shift position detector (shift position sensor) 11 that acquires shift position information for detecting a shift position set by a change operation, and a vehicle speed detector (vehicle speed) that acquires vehicle speed information for detecting the vehicle speed of the vehicle 100 Sensor) 14 and a brake operation test for detecting whether or not the vehicle 100 is operated by the driver. Unit 15, ignition switch (IG switch) 16, display unit 2, sound output unit (speaker) 3, external storage device 4, and control unit 10 to which they are connected. .

  As shown in FIG. 2, here, the steering wheel angle detector 13 acquires tire angle information for detecting the rotation angle of the steering wheel shaft 102a directly connected to the steering wheel 101 (angular position by rotation). This is the detection unit 12A. Here, a known angle detection unit such as a rotary encoder is used. The steering wheel angle detection unit 13 may acquire detection information for directly detecting the steering angle (rotation operation angle) of the steering handle 101, or estimate the steering angle (rotation operation angle). It is also possible to acquire estimation information for the purpose.

  The tire angle detection unit 12 acquires tire angle information whose angle is changed by steering the steering handle 101. As shown in FIG. 2, the tire angle detection unit 12 detects a rotation angle (an angular position by rotation) of the steered shaft 102b that rotates by mechanically or electrically transmitting the rotation of the handle shaft 102a. This is a turning shaft angle detection unit 12B that acquires shaft rotation angle information for the purpose. In addition, the tire angle detection part 12 may acquire the detection information for detecting the tire angle (steering angle) of the wheels 105 and 105 directly, and in order to estimate a tire angle (steering angle). The estimation information may be acquired. For example, the tire angle of the wheels 105 and 105 is directly detected in the steering system in which the pinion 103 rotating together with the steered shaft 102b reciprocates the rack bar 104 in the axial direction to change the tire angle of the wheels 105 and 105. For example, the turning angle detection unit 12C for obtaining the turning angle information may be used. If there is a motor that rotates the turning shaft 102b according to the detection result of the steering wheel steering angle detection unit 13, the output shaft of the motor is provided. A motor rotation angle detector (not shown) that acquires motor rotation angle information for detecting the rotation angle of the motor may be used.

  Here, the brake operation detection unit 15 is a brake sensor that detects the presence or absence of operation (depression) of the brake pedal.

  The display unit 2 is a screen display unit capable of drawing an arbitrary image in the screen 200, and is a liquid crystal display device such as a TFT. As shown in FIG. 3, the display unit 2 here uses a meter display unit disposed on the front side of the vehicle with respect to the handle 101, and is a display unit that displays at least the vehicle speed of the vehicle 100 in a normal state. is there. Specifically, as shown in FIG. 4A, the display unit 2 here includes a circular area that forms a rotation speed display unit 200 </ b> M <b> 1 that displays the engine rotation speed of the vehicle 100, and a vehicle speed display that displays the vehicle speed of the vehicle 100. And at least a circular region that forms part 200M0.

  The control unit 10 is a known microcomputer and executes various programs stored in an internal / external storage unit (for example, the external storage device 4). The control part 10 here performs the tire angle display process which displays the present tire angle on the display part 2 like FIG.

  First, the control unit 10 detects a driver perplexing operation that is likely to be performed by a driver who has lost sight of the tire angle (S1-3: perplexing operation detection means). The driver's embarrassment operation here is set as a predetermined redo operation performed under a predetermined precondition. The redoing operation can be regarded as an operation caused by the driver's embarrassed state, but it cannot be determined whether the embarrassed state is an embarrassed state in which the tire angle is lost. However, if the redo operation is performed under a precondition where the tire angle is easily lost, the perplexed state is very likely to be lost.

  Note that the above precondition here is detected as an operation actually performed by the driver or a change in the state of the vehicle 100 caused by the operation. Regardless of whether or not a situational change is related to such an operation, it is not detected from a change in the state or situation that occurs between the vehicle 100 and the outside environment.

  As shown in FIG. 5, the precondition in the present embodiment includes both a low speed state where the vehicle speed of the vehicle 100 is equal to or lower than a predetermined reference vehicle speed (for example, 10 km / h or lower) and a predetermined deceleration operation state. Is set (stored) in the storage device 4. That is, the case where the control unit 10 determines that the vehicle speed calculated based on the detection result of the vehicle speed sensor 100 is equal to or less than the reference vehicle speed and the case where the brake operation detection unit 15 detects the brake operation are set as the precondition. The reference vehicle speed is a predetermined numerical value determined at a speed of 15 km or less, more preferably at a speed of 5 km or less. Here, the reference speed is set to 0 km / h (that is, the vehicle is stopped).

  On the other hand, the redo operation set (stored) in the storage device 4 in the present embodiment is such that the shift position detected by the shift position detector (shift position sensor) 11 changes from “R” to ““, as shown in FIG. This includes a shift change that is continuously switched in the order of “D” → “R” and a shift change in which the shift position is continuously switched in the order of “D” → “R” → “D”. However, when going back and forth between the shift positions “D (drive)” and “R (reverse)”, it passes through the “N (neutral)” position between them, but the detection duration at that position is less than a predetermined time. If it is (for example, less than 2 seconds), the position “N” has only passed, and it is not recognized that the position has been taken. On the contrary, when the detection continuation time at each position “D”, “R”, “N” is longer than a predetermined time (for example, 1 second or longer), it is recognized that the position has been taken. Note that “R” → “N” → “R” and “D” → “N” → “D” may be included in the redo operation.

  Further, in the present embodiment, the redo operation set (stored) in the storage device 4 is such that the steering angle (rotation operation angle) of the handle 101 detected by the handle steering angle detector 13 is “left more than a predetermined angle” → “ Steering angle change that switches continuously in the order of “Right over a predetermined angle” → “Left over a predetermined angle”, and the steering angle (rotation operation angle) is “Right over a predetermined angle” → “Left over a predetermined angle” → “Predetermined angle” Steering angle change that is continuously switched in the order of “right”. The predetermined angle here is determined to be 90 degrees or less, more desirably 30 degrees or less for both left and right, and 45 degrees is defined here.

  Furthermore, in the driver's embarrassed operation in the present embodiment, as the precondition, the state where the shift position detected by the shift position detection unit (shift position sensor) 11 is “R”, and the ignition switch 16 is turned on. A predetermined period immediately after is determined, and as a redo operation, the steering angle (rotational operation angle) of the handle 101 detected by the handle steering angle detector 13 is “left more than a predetermined angle” → “right more than a predetermined angle” → “predetermined angle” Steering angle change that is continuously switched in the order of “Left”, and the steering angle (rotation operation angle) is also continuously in the order of “Right over a predetermined angle” → “Left over a predetermined angle” → “Right over a predetermined angle”. It is assumed that the same operation as the redo operation described above, in which the change in the steering angle is switched, is defined.

  Returning to FIG. In order to detect the driver's embarrassed operation, the control unit 10 acquires predetermined detection information for detecting the precondition, and specifies whether or not the vehicle 100 is in the precondition (S1: Precondition state identification means). Here, the control part 10 acquires the detection results of the vehicle speed detection part 14, the brake operation detection part 15, and the shift position detection part 11, and specifies whether the vehicle 100 is in the said premise based on them. To do.

  Further, the control unit 10 acquires predetermined detection information for detecting the redo operation, and specifies whether or not the redo operation has been performed in the vehicle 100 (S1: redo operation specifying means). Here, the control part 10 acquires the detection result of the steering wheel angle detection part 13 and the shift position detection part 11, and specifies whether the vehicle 100 is in the said premise based on them. It should be noted that the presence / absence of the steering angle change that is the redo operation described above may be specified from the detection result of the steering wheel steering angle detector 13, but the redo operation already described from the detection result of the tire angle detector 12 may be specified. The presence or absence of a steering angle change may be specified.

  And the control part 10 determines whether the said driver | operator's embarrassment operation was made based on those specific results and the setting content (refer FIG. 5) set to the memory | storage device 4 (S3: Emotion) Operation presence / absence determination means). When it determines with the said driver | operator's embarrassment operation not being made, the control part 10 complete | finishes this process. However, this process is repeatedly executed as long as the ignition switch 16 is ON.

  When it is determined that the driver's embarrassed operation is not performed, the control unit 10 detects the tire angles of the tires 105 and 105 of the vehicle 100 (S4: tire angle detection means). Here, the control part 10 acquires the detection result of the tire angle detection part 12, and calculates and specifies the said tire angle based on them.

  Subsequently, the control unit 100 identifies the traveling direction of the vehicle 100 (S5: traveling direction identifying means). Here, it is detected whether the vehicle 100 is in a forward advanceable state or a reverseable state (forward / reverse state detecting means), and based on the detection result and the tire angle specifying result detected immediately before, The traveling direction of the vehicle 100 is specified. Here, whether or not the vehicle 100 is in the forward enabled state is specified from the detection result of the shift position detection unit 11 here. That is, when the shift position is “R”, the vehicle can be moved backward, and when it is “D”, “1 (low)”, “2 (second)”, etc., it is specified as the vehicle capable of moving forward.

  When the tire angle is detected, the control unit 100 displays the detected tire angle on the predetermined display unit 2 (S6: display means). Since the display unit 2 here is a screen display unit, the tire angle is displayed by a tire image display in which the tire images 200T and 200T viewed from above are tilted and displayed in a direction based on the detected tire angle.

  Further, since the traveling direction of the vehicle 100 is specified, the control unit 10 displays the specified traveling direction together with the tire angle (S6: display means). The display of the traveling direction is performed by a traveling direction instruction image display that displays a traveling direction instruction image 200Y that instructs the traveling direction with respect to the vehicle image 200C viewed from above. Here, the tire images 200T and 200T respectively displayed on the left and right sides of the vehicle image 200C are displayed in an inclined manner according to the detected tire angle, while the traveling direction of the vehicle image 200C is displayed as a traveling direction instruction image. 200Y indicates not only whether to move forward or backward, but also the direction of turning.

  Here, the display of the tire angle and the traveling direction is displayed by switching a predetermined normal display made on the display unit 2. The display unit 2 here is a meter display unit, and as shown in FIGS. 4A and 4B, the meter display 200M1 displayed as a normal display is changed to a tire angle display (including a vehicle traveling direction display here) 200M2. It is displayed in the form of switching. Here, a tire angle display 200M2 is displayed in place of the engine speed display in a circular area forming the engine speed display portion 200M1 for displaying the engine speed.

  The display unit 2 of the present embodiment includes a main display unit that displays the tire angle and an auxiliary display unit that displays the traveling direction of the vehicle 100. Here, the main display unit and the auxiliary display unit are provided in the common screen display unit 2, and as shown in FIG. 4B, the control unit 10 displays the main display in the screen 200 of the screen display unit 2. The screen area 200M2 corresponding to the part and the screen areas 200L1 to 200L4 corresponding to the auxiliary display part are set in advance, and the screen areas 200M2 and 200L1 to 200L4 corresponding to each are respectively displayed. Further, the main display unit 200M2 here displays both the tire angle and the traveling direction of the vehicle 100, and the auxiliary display units 200L1 to 200L4 display the traveling direction of the vehicle 100 on the main display unit 200M2. Is displayed in a different form.

  Specifically, the auxiliary display units 200L1 to 200L4 are set as predetermined outer peripheral regions in the screen 200 of the screen display unit 2, and the traveling direction of the vehicle is expressed in the regions. Here, among the outer peripheral side regions in the screen 200 of the screen display unit 2, an emphasis display (light emission display: reference numeral 200 l) is performed in which an area corresponding to the traveling direction is emphasized (light emission) with respect to the remaining area. That is, the display in the screen 200 of the screen display unit 2 is left as shown in FIG. 4A except for the display unit 200M2, and only the area corresponding to the direction of travel defined beside the display of the display units 200M0 and 200M2 is slightly lit. Display state. For this reason, it is possible to indicate the traveling direction without disturbing the normal display. Note that the outer peripheral region here is set as four corner regions 200L1 to 200L4 in the quadrangular screen 200, and among them, a region corresponding to the traveling direction (here, region 200L1) is highlighted. The state is 200 l.

  Further, here, the sound output unit (speaker) 3 further outputs a sound of the traveling direction of the vehicle. Specifically, it may be possible to output a voice message “The vehicle travels forward right” or, more simply, output a voice only “right front”.

  Next, the control unit 10 acquires predetermined detection information for detecting the precondition, and determines whether or not the vehicle 100 has been released from the precondition (S7: precondition release specifying means). Here, the control unit 10 acquires the detection results of the vehicle speed detection unit 14, the brake operation detection unit 15, and the shift position detection unit 11, and specifies whether the above precondition is continued or released based on the detection results. To do. If the precondition is not released, the control unit 10 returns to the tire angle specifying process (S4) and the traveling direction specifying process (S5) again, and continues the tire angle display and the traveling direction display (S7). . On the other hand, when the precondition is released, the control unit 10 ends this process. However, since this process is repeatedly executed as long as the ignition switch 16 is ON, if the above-mentioned operation perplexing operation is detected again (S3: Yes), the tire angle display and the traveling direction display (S7) are executed. The

  Thus, according to the vehicle display device of the present embodiment, a driver who is in trouble losing sight of the tire angle is identified with a high probability, and only the identified driver is notified of the tire angle and the vehicle traveling direction. be able to. If the configuration is such that the tire angle and the vehicle traveling direction are always displayed for a certain scene, any driver will always be informed when that scene arrives. It is not in the form.

  As mentioned above, although one Embodiment of this invention was described, this is only an illustration to the last, and this invention is not limited to this. For example, various modifications based on the knowledge of those skilled in the art are possible, such as omitting some of the configuration requirements in the above-described embodiment and further adding other configuration requirements. The same applies to the embodiments described below.

  In the above embodiment, the driver's embarrassed operation that is likely to be performed by the driver who has lost sight of the tire angle is defined and set by the combination of the precondition and the redo operation as described above, but is set as another definition. May be. When setting as another definition, it is desirable that the definition be detected as an operation actually performed by the driver or a change in the state of the vehicle 100 caused by the operation.

  In the embodiment described above, the tire angle, the vehicle traveling direction display, and the voice output are notified only when the driver's embarrassed operation that is likely to be performed by the driver who has lost sight of the tire angle is detected. When the arrival of a predetermined scene, such as a scene that is easy to lose sight or a scene where the tire angle should be notified, is detected and the arrival is detected, the notification enhancement level is higher than when the driver's embarrassed operation is detected. The tire angle and the vehicle traveling direction may be displayed in a low form. In addition, the above-described driving embarrassed operation may be a driver embarrassed operation that is likely to be performed by a driver who has lost sight of the vehicle traveling direction.

  For example, as shown in FIG. 7, the control unit 10 detects a predetermined driving trouble scene in which the driver easily loses sight of the tire angle during the driving of the vehicle 100 (S11: driving trouble scene detection means). When the troubled driving scene is detected (S12: Yes), the subsequent processes (S13 to S15) are executed in the same manner as S4 to S6 in FIG. However, the display processing (S15) of the tire angle and the vehicle traveling direction is performed with a display enhancement level lower than that in the case of FIG. 6 (S6).

  As a display of the tire angle and the vehicle traveling direction at a low emphasis level (S15), for example, as shown in FIG. 8, in the display unit 2, except for the display unit 200M2, the auxiliary display unit 200l ( Examples of the display screen 203 include only 200L1 to 200L4). In this case, the display when the troubled driving scene is detected is the same as when it is not detected, and only the area of the auxiliary display section is slightly lit, and switching from the normal display state does not occur. . That is, the display content in the normal time can be continuously visually recognized before and after the driving trouble scene is detected.

  Further, as a display of the tire angle and the vehicle traveling direction at a low emphasis level (S15), as shown in FIG. 9, a display screen 204 in which the emphasis level of the main display unit 200M2 in FIG. . In FIG. 9, the display images such as the tire images 200T and 200T and the traveling direction of the vehicle image 200C and the traveling direction instruction image 200Y in FIG. 4B are reduced images.

  Further, as the sound output (S15) of the tire angle or the vehicle traveling direction at a low emphasis level, the output itself may be omitted.

  It should be noted that the driving confusion scene can be defined as a state in which the vehicle 100 can be moved backward (in the shift position “R” state) or a predetermined period immediately after the ignition switch 16 of the vehicle 100 is turned on. Moreover, you may define the premise state of embodiment described initially as the said driving | operation confusion scene.

  In the above embodiment, when a driver's embarrassed operation that is likely to be performed by a driver who has lost sight of the tire angle is detected, the auxiliary display unit 200l (200L1 to 200L4) is displayed as shown in FIG. 4B. However, this may be omitted as shown in FIG. Further, the display of the auxiliary display unit 200l may have another form. For example, the traveling direction may be displayed by dynamic expression (animation expression) in which the auxiliary display units 200N1 and 200N2 move the light emitting unit 200n in a direction corresponding to the direction of bending. In FIG. 10, among the auxiliary display portions 200N1 and 200N2 extending in a belt shape in the left-right direction of the vehicle, the auxiliary display portion 200N1 on the upper end side corresponds to the front side of the vehicle and the auxiliary display portion 200N2 on the lower end side corresponds to the rear side of the vehicle. The direction indicates the direction in which the vehicle 100 is bent. In other words, in FIG. 10, band-like areas extending in the left and right directions are provided at the upper and lower ends of the screen 200, and the light emitting area 200 n that emits a slight amount of light is moved from right to left or from left to right. it's shown.

  In the above embodiment, no consideration is given to the driving skill of the driver. Originally, the present invention is to display the tire angle when a situation occurs in which a person who has a low driving skill of the driver easily loses the tire angle, and it is understood that the driving skill of the driver is high. If so, it can be determined that there is no need to display the tire angle in the first place. That is, the driving skill level of the driver is specified (driving skill level specifying means), and the highlight level of either or both of the detected tire angle and the vehicle traveling direction is changed based on the specified result. (Display means). In the case of a driver who has the highest driving skill, the tire angle and the traveling direction of the vehicle can be hidden. Specifically, for example, the processing in FIGS. 6 and 7 can be realized by the processing in FIGS. 11 and 12.

  11 and 12 (S1 to S8, S11 to S17) are the same as the processes of FIGS. 6 and 7 (S101 to S110, S111 to S119), but the tire angle display and the vehicle progress display (S108, Prior to S117), the control unit 10 specifies the driving skill level of the driver (S106, S115: driving skill level specifying means), and emphasizes the tire angle display and the vehicle progress display based on the specified driving skill level. The level is determined (S107, S116), and the tire angle display and the vehicle progress display can be performed at the determined emphasis level (S108, S117). For example, if the emphasis level is from level 1 to level 3, the display in FIG. 7A is set to level 1 (lowest level), the display in FIG. 8 is set to level 2, and the display in FIG. 7B is displayed as level 3 (highest level). You can make it.

  In addition, about a driver | operator's proficiency level, it can be set as the structure which makes a driver | operator set by own operation. For example, the screen 520 of FIG. 13 is displayed on the screen of a predetermined display unit (in this case, the display unit 52), and the driver's proficiency level (emphasis level) selection operation by the user (here, the icon in the screen 521) (Touch operation to 521A) is received, and the selected driver skill level (emphasis level) can be set (stored) in the storage device 4.

  The proficiency level of the driver may be automatically set by learning from a predetermined vehicle operation performed by the driver. For example, as shown in FIG. 14, when an immature operation set in advance is determined in association with each level of driving proficiency, the immature operation is performed, or the immature operation is abnormal a predetermined number of times. Can be configured to set (store) the driving proficiency level in the storage device 4. However, when the level corresponding to the immature operation is lower than the current setting level, the current setting level is not set and the current setting level is held. 11 and 12, in S106 and S115, the current driving level set in the storage device 4 is read and specified for the driving skill level of the current driver.

DESCRIPTION OF SYMBOLS 1 Display apparatus for vehicles 10 Control part 11 Shift position detection part 12 Tire angle detection part 13 Steering wheel steering angle detection part 14 Vehicle speed detection part 15 Brake operation detection part 2 Display part (screen display part)
3 Sound output unit 4 Storage device 5 Car navigation device

Claims (7)

Tire angle detecting means for detecting a tire angle for determining a traveling direction of the vehicle;
Predetermined redo operation premised on a low speed state or a predetermined deceleration operation state that is equal to or lower than a predetermined vehicle speed as a driver embarrassed operation that is likely to be performed by a driver who has lost sight of the tire angle Is set, and perplexed operation detection means for detecting the set driver perplexed operation,
Display means for displaying the detected tire angle on a predetermined display unit when the driver's embarrassed operation is detected;
A vehicle display device comprising:   The vehicle display device according to claim 1, wherein the display unit includes a main display unit that displays the tire angle and an auxiliary display unit that displays a traveling direction of the vehicle.   The main display unit displays both the tire angle and the vehicle traveling direction, and the auxiliary display unit displays the vehicle traveling direction different from the main display unit. The vehicle display device according to claim 2, wherein the display device is in the form of a vehicle.   The main display unit and the auxiliary display unit are provided in a screen of a common screen display unit, and the display means corresponds to the main display unit and the auxiliary display unit in the screen of the screen display unit. The vehicle display device according to claim 2 or 3, wherein a screen area to be set is set in advance and each display is performed in a corresponding screen area.   The vehicle display device according to claim 4, wherein the auxiliary display unit is set as a predetermined outer peripheral side region in a screen of the common screen display unit.   The said display means is displayed in the form which switches the display of the said tire angle from the predetermined normal display made in the said display part, when the said driver | operator's embarrassment operation is detected. The vehicle display device according to any one of the above. A driving trouble scene detecting means for detecting a predetermined driving trouble scene in which the driver easily loses sight of the tire angle during driving of the vehicle;
The display means displays the detected tire angle on the display unit when the driving confusion scene is detected, and detects when the driver embarrassed operation is detected. Either or both of the tire angle and the traveling direction of the vehicle are displayed on the display unit with a higher emphasis than when the driver troubled scene is detected. The vehicle display device according to item 1.

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