JP7055012B2 - Vehicle traveling direction display device - Google Patents

Description

The present invention relates to a device that displays the traveling direction of a vehicle such as an automobile.

In automobiles, in order to ensure safety, a display member that indicates the direction of travel to the right winker light or the left winker light is used (Patent Documents 1 to 4).
Other automobiles and pedestrians traveling around can grasp the traveling direction of the automobile by the display of the lit winker light. You can adjust your own course according to the direction of travel of the car you have grasped.

Japanese Unexamined Patent Publication No. 11-070833 Japanese Unexamined Patent Publication No. 2011-08480 Japanese Unexamined Patent Publication No. 2011-131631 International Publication No. 2014/054506

By the way, as described in Patent Documents 1 to 4, in the conventional traveling direction display device, the lighting of the winker light is terminated by the steering returning to the center.
However, the steering of a car is not always returned to the center after its operation.
For example, if the lane is changed to the right in the middle of the right curve and the vehicle travels on the right curve even after the lane change, the steering remains steered to the right even after the lane change. Therefore, if the right winker light is turned on before changing lanes, the steering does not return to the center, and the right winker light cannot be turned off. In this case, the occupant of the automobile needs to turn off the right winker light by his / her own operation.

In this way, the vehicle traveling direction display device can be used without bothering the occupants as much as possible according to each situation such as when the display is desired to be continued or when the display is desired to be terminated. It is required that the display can be finished so as not to give a sense of discomfort.

The vehicle traveling direction display device according to one embodiment of the present invention changes the traveling direction of the vehicle when the display member displays the traveling direction of the vehicle and the display member starts displaying the traveling direction of the vehicle. When the acquisition unit that acquires the existing rudder angle of the steering device as the reference rudder angle and the detected rudder angle of the steering device return to the range of the return angle difference with respect to the reference rudder angle, the display member advances. It has an end control unit that ends the display of the planned direction, and the display member is provided on the outer surface of the vehicle and is right or left based on the operation of the direction instruction operation unit provided on the vehicle. The acquisition unit displays the planned direction of travel to, and the acquisition unit acquires the existing steering angle of the steering device as a reference steering angle based on the operation timing of the direction instruction operation unit or the display start timing of the display member. The end control unit determines that the steering device is steered in the planned traveling direction based on the detected steering angle of the steering device, and further, the difference between the detected steering angle of the steering device and the reference steering angle is the return angle. After determining that the steering is greater than or equal to the difference, or that the steering is greater than or equal to the determination start angle difference that is larger than the return angle difference, the steering is within the range of the return angle difference based on the reference steering angle. Starts the return judgment of .
Preferably, an information acquisition unit provided on the vehicle to acquire situation information about the road on which the vehicle is traveling, the road on the route on which the vehicle is scheduled to travel, or the intersection where the vehicle enters or turns left or right. When the situation information acquired turns left in a large turn to a narrow alley, when entering an intersection from a curved road, the end control unit makes a right or left turn opposite to the curve, or When entering an intersection from a sloping road and turning left or right, it is determined by the detection steering angle of the steering device that the vehicle is being steered in the planned travel direction, and further, the detection steering angle of the steering device and the steering angle are described. After determining that the difference from the reference steering angle is steering equal to or greater than the return angle difference, or steering is greater than the determination start angle difference larger than the return angle difference, the reference steering angle is determined. When the judgment of returning to the range of the return angle difference based on the above is started and the acquired situation information changes lanes in the middle of the curve, or when the vehicle turns left or right after changing lanes, the steering is performed. It is determined that the difference between the detected rudder angle of the device and the reference rudder angle is steering equal to or greater than the return angle difference, or steering is greater than the determination start angle difference larger than the return angle difference. After that, it is preferable to start the return determination within the range of the return angle difference with respect to the reference rudder angle.
Preferably, the end control unit determines the difference between the detected steering angle of the steering device and the reference steering angle based on the absolute value of the difference.

Preferably, the return angle difference is set on both sides of the reference steering angle on the scale of the detection steering angle of the steering device.

In the present invention, the acquisition unit acquires the existing steering angle of the steering device that changes the traveling direction of the vehicle as a reference steering angle when the display member starts displaying the planned traveling direction. For example, when the display member is provided on the outer surface of the vehicle and displays the planned direction of travel to the right or left based on the operation of the winker lever provided on the vehicle, the acquisition unit determines the operation timing of the winker lever or Based on the display start timing of the display member, the existing steering angle of the steering device may be acquired as the reference steering angle.
After that, when the detected rudder angle of the steering device returns to the range of the return angle difference with respect to the reference rudder angle, the end control unit ends the display of the planned traveling direction by the display member.
Therefore, even in a situation where the detected steering angle of the steering device does not return to the center of the steering, for example, the display of the planned traveling direction by the display member can be terminated.
For example, if you change lanes to the right in the middle of a right curve and drive on the right curve even after changing lanes, start displaying the planned direction of travel to the right before changing lanes, and turn the display to the right for steering. It can continue during the change of lane, and continue until it starts to drive along the diagonal right curve in the changed lane. Similarly, even if you change lanes to the left in the middle of the left curve and drive on the left curve after changing lanes, the display of the planned direction of travel to the left will continue during the period from before the lane change to the end, and then. Can be terminated.
As described above, in the present invention, the display member for displaying the planned traveling direction of the vehicle is more suitable than the conventional display according to each situation such as when the display is desired to be continued or when the display is desired to be terminated. Can be carried out. The display that matches the situation can be displayed without bothering the occupants and without giving a sense of discomfort.

FIG. 1 is an explanatory diagram of an automobile to which the traveling direction display device of the present invention is applied. FIG. 2 is a block diagram of a traveling direction display device according to the first embodiment of the present invention. FIG. 3 is an explanatory diagram of the relationship between the output of the encoder of the steering device of FIG. 2 and steering. FIG. 4 is a flowchart of the traveling direction display start processing executed by the controller of FIG. FIG. 5 is a flowchart of the traveling direction display end processing executed by the controller of FIG. FIG. 6 is a flowchart of the traveling direction display end processing according to the second embodiment of the present invention. FIG. 7 is a flowchart of the traveling direction display end processing according to the third embodiment of the present invention. FIG. 8 is a flowchart of the traveling direction display end processing according to the fourth embodiment of the present invention. FIG. 9 is a flowchart of the traveling direction display end processing according to the fifth embodiment of the present invention. FIG. 10 is a flowchart of the traveling direction display start processing according to the sixth embodiment of the present invention. FIG. 11 is an explanatory diagram of an example of a road and an intersection in which an automobile changes lanes or turns left or right. FIG. 12 is a block diagram of the traveling direction display device according to the seventh embodiment of the present invention. FIG. 13 is a flowchart of the traveling direction display start processing executed by the controller of FIG. FIG. 14 is a flowchart of an example of the traveling direction display end processing executed by the controller of FIG. FIG. 15 is a block diagram of the traveling direction display device according to the eighth embodiment of the present invention. FIG. 16 is a flowchart of the traveling direction display start processing executed by the controller of FIG. FIG. 17 is a flowchart of an example of the traveling direction display end processing executed by the controller of FIG. FIG. 18 is a configuration diagram of a traveling direction display device for displaying the traveling direction of the own vehicle to another vehicle.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[First Embodiment]
FIG. 1 is an explanatory diagram of an automobile 1 to which the traveling direction display device 10 of the present invention is applied. The automobile 1 is an example of a vehicle. The automobile 1 may have an internal combustion engine as a power source for traveling, a power source stored in a battery as a power source for traveling, or a combination thereof.
The automobile 1 of FIG. 1 has a vehicle body 2. The vehicle body 2 is formed with a passenger compartment 3 on which an occupant rides.

Further, a right winker light 11 and a left winker light 12 are arranged on the front surface and the rear surface of the vehicle body 2, respectively. The right winker light 11 and the left winker light 12 may be arranged on the side surface, the upper portion, the door mirror, or the like of the vehicle body 2.
For example, when the automobile 1 makes a right turn, the right winker light 11 is turned on according to an operation of an occupant or the like. Further, for example, when turning left, the left winker light 12 is turned on.
As a result, the right winker light 11 and the left winker light 12 can display the planned traveling direction of the automobile 1 to the right or left toward the outside of the vehicle and notify the surroundings. Other automobiles 1 and pedestrians traveling around the automobile 1 can grasp the traveling direction of the automobile 1 by the lighting display of the winker lights 11 and 12. You can adjust your own course according to the direction of travel of the car 1 that you have grasped. Safety can be ensured.

By the way, in the conventional display processing of the traveling direction using the winker lights 11 and 12, the lighting of the winker lights 11 and 12 is terminated by returning the steering wheel steered by the occupant to the center.
However, the steering of the automobile 1 is not always returned to the center.
For example, if the lane is changed to the right in the middle of the right curve and the vehicle travels on the right curve even after the lane change, the steering remains steered to the right even after the lane change. Therefore, if the right winker light 11 is turned on before changing lanes, the steering does not return to the center, so that the right winker light 11 cannot be turned off. In this case, the occupant of the automobile 1 needs to turn off the right winker lights 11 and 12 by his / her own operation.
In this way, the traveling direction display device 10 of the automobile 1 does not bother the occupants as much as possible according to each situation such as when it is desired to continue the display or when it is desired to end the display. Also, it is required to be able to end the display so as not to give a sense of discomfort.

FIG. 2 is a block diagram of the traveling direction display device 10 according to the first embodiment of the present invention.
FIG. 2 shows a traveling direction display device 10, a steering device 20, a winker lever device 30, and an information acquisition device 40 as peripheral devices thereof. These devices are provided in the automobile 1 of FIG.

The steering device 20 includes a steering 21 and an encoder 22. The steering device 20 is arranged in the passenger compartment 3 so that the steering 21 is positioned in front of the seated occupant.
The steering 21 generally has a circumferential shape. Then, it is rotationally steered by the occupant. The direction of the front wheels of the automobile 1 is tilted to the left and right according to the rotation of the steering 21. As a result, the traveling direction of the automobile 1 changes to the left and right.
The encoder 22 detects the amount of rotation of the steering 21.
FIG. 3 is an explanatory diagram of the relationship between the output of the encoder 22 of the steering device 20 of FIG. 2 and steering.
FIG. 3 illustrates the output range of the encoder 22. For example, the encoder 22 outputs a value according to the amount of rotation of the steering 21 to the left and right with reference to the state where the steering 21 is in the center. The center of the steering 21 corresponds to a state in which the front wheels of the automobile 1 face forward and the automobile 1 goes straight. The encoder 22 itself may output a pulse at regular angles, which may be converted into a left-right rotation amount of the steering 21 by a controller 15 or the like described later.
The steering device 20 does not detect the amount of rotation of the steering 21 by the encoder 22, but detects the position of the rotated steering 21 based on the operation time, the operation distance, the operation speed, etc. of the steering 21 itself. You may.

The winker lever device 30 includes a rod-shaped lever 31 and a detection unit 32 for detecting the operation of the lever 31. The winker lever device 30 is arranged near the steering device 20 so that the lever 31 is generally located near the steering 21.
For example, when the lever 31 is operated upward, the detection unit 32 outputs a direction instruction signal to the left. Further, when the lever 31 is operated downward, a direction instruction signal to the right is output.

The information acquisition device 40 may be provided on the vehicle body 2 and can acquire information related to the traveling of the automobile 1. Examples of the information acquisition device 40 that can be used include an out-of-vehicle camera that captures a course, a navigation device that guides a travel route, an automated driving control device or a driving support control device that controls or supports the driving of the vehicle 1, and a position of the vehicle 1. There are electronic devices that provide various services based on information.
Then, the information acquisition device 40 acquires situation information about the road on which the automobile 1 is traveling, the road on the route on which the automobile 1 is scheduled to travel, and the intersection where the automobile 1 enters or turns left or right. For the road on which the automobile 1 is traveling or the road on which the automobile 1 is scheduled to travel, for example, information such as the number of lanes, the shape, and the structure of the road is used. For an intersection where the vehicle 1 enters or turns left or right, for example, information such as the number of lanes at the intersection, the presence or absence of a right turn lane, the presence or absence of a left turn lane, the shape, and the structure. This information is information to be confirmed when the occupant actually turns on the winker lights 11 and 12 of the automobile 1 and steers, and is information used by the automobile 1 to turn on the winker lights 11 and 12 and travel. Is.

The traveling direction display device 10 includes a right winker light 11, a left winker light 12, a switch module 13, a liquid crystal device 14, a controller 15, and a memory 16.

The switch module 13 is connected to the right winker light 11, the left winker light 12, and the battery 17. The right winker light 11 and the left winker light 12 are energized and turned on by being supplied with the stored power of the battery 17 through the switch module 13. The switch module 13 may individually control the lighting of the right winker light 11 and the left winker light 12.

The liquid crystal device 14 is provided on the front side of the occupant, for example, in the vehicle interior 3. The liquid crystal device 14 displays the blinking state of the right winker light 11 and the blinking state of the left winker light 12.

The controller 15 is connected to the encoder 22 of the steering device 20, the detection unit 32 of the winker lever device 30, the information acquisition device 40, the switch module 13, the liquid crystal device 14, and the memory 16. The controller 15 may be provided as a part of an ECU (ELECTRIC CONTROLL UNIT) that controls the power source of the automobile 1, or may be provided by a CPU (CENTRAL PROCESSING UNIT) that is separate from the ECU. The controller 15 reads and executes a program stored in the memory 16. As a result, a control unit that controls the traveling direction display is realized.

The memory 16 stores a program used by the controller 15 and data for controlling the traveling direction display. The data for controlling the traveling direction display includes, for example, a reference steering angle, a return angle difference, a determination start angle, and situation information, which are already steering angles of the steering 21, which will be described later.

Next, the display control of the traveling direction by the controller 15 will be described.

FIG. 4 is a flowchart of the traveling direction display start processing executed by the controller 15 of FIG.
The controller 15 repeatedly executes the traveling direction display start process of FIG. 4, for example, while the occupant is on board.

In the traveling direction display start processing of FIG. 4, the controller 15 first determines whether or not the winker lever 31 has been operated based on the output signal of the detection unit 32 of the winker lever device 30 (step ST1).
Then, when the winker lever 31 is operated, the controller 15 turns on the winker lights 11 and 12 in the right or left operation direction through the switch module 13. As a result, the operated winker lights 11 and 12 start blinking (step ST2).

Next, the controller 15 acquires the steering angle of the steering 21 already operated at the timing when the winker lever 31 is operated as a reference steering angle based on the output signal of the encoder 22 of the steering device 20 (step ST3). ).
Here, the steering angle of the steering 21 that has already been operated at the timing when the winker lever 31 is operated is referred to as an already-steering angle. Further, the controller 15 may use the instantaneous detection value of the encoder 22 as the steering angle, but the average value (average steering angle) in the short period up to the present time and the typical value in the short period up to the present time. The rudder angle obtained by filtering the value (representative rudder angle) and the value for a short period up to the present time may be acquired as the reference rudder angle. Further, by acquiring the reference steering angle in the traveling direction display start processing executed based on the operation of the winker lever 31 in this way, the reference steering angle is acquired at the timing when the lighting display of the winker lights 11 and 12 is started. Equivalent to what was done.

After that, the controller 15 activates the end processing of the traveling direction display (step ST4).

FIG. 5 is a flowchart of the traveling direction display end processing executed by the controller 15 of FIG.
The controller 15 repeatedly executes the traveling direction ending process of FIG. 5 based on the activation in the traveling direction starting process.

In the traveling direction end process of FIG. 5, in the controller 15, first, the detection steering angle of the steering device 20 sets the reference steering angle based on the output signal of the encoder 22 of the steering device 20 after the winker lever 31 is operated. It is determined whether or not the return angle has returned within the reference return angle difference (step ST11).
Specifically, the controller 15 first acquires the current steering angle of the steering device 20 as the detected steering angle, and whether or not the value obtained by subtracting the reference steering angle from the detected steering angle becomes larger than the predetermined return angle difference. Judge. The return angle difference may be a small angle smaller than the steering angle when the occupant intentionally steers to change lanes or turn left or right, for example.

When the value obtained by subtracting the reference rudder angle from the detected rudder angle becomes larger than the predetermined return angle difference, the controller 15 then determines whether or not the value obtained by subtracting the reference rudder angle from the detected rudder angle returns to the return angle difference or less. Is determined (step ST12).
Based on these series of determinations, the controller 15 can determine that the steering 21 is intentionally operated to be larger than the return angle difference and then returned so as to be equal to or less than the return angle difference.

Then, when the value obtained by subtracting the reference steering angle from the detected steering angle returns to the return angle difference or less, the controller 15 ends the lighting of the winker lights 11 and 12 through the switch module 13 (step ST13).
This ends the display of the planned travel direction to the right or left.

As described above, in the present embodiment, the controller 15 uses the existing steering angle of the steering device 20 that changes the traveling direction of the automobile 1 as a reference steering angle at the timing when the winker lights 11 and 12 start displaying the planned traveling direction. Get as. For example, when the winker lights 11 and 12 are provided on the outer surface of the automobile 1 and the winker lever 31 provided on the automobile 1 is operated by an occupant to start displaying the planned traveling direction to the right or left. The controller 15 acquires the existing steering angle of the steering device 20 as a reference steering angle at the operation timing of the winker lever 31 or the display start timing of the winker lights 11 and 12.
After that, when the detected steering angle of the steering device 20 returns within the range of the return angle difference with respect to the reference steering angle, the controller 15 ends the display of the planned traveling direction by the winker lights 11 and 12.
Therefore, even in a situation where the detected steering angle of the steering device 20 does not return to the center of the steering 21, for example, the display of the planned traveling direction by the winker lights 11 and 12 can be terminated.

For example, if you change lanes to the right in the middle of a right curve and drive on the right curve even after changing lanes, start displaying the planned direction of travel to the right before changing lanes, and turn the display to the right for steering. It can continue during the change of lane, and continue until it starts to drive along the diagonal right curve in the changed lane. Similarly, even if you change lanes to the left in the middle of the left curve and drive on the left curve after changing lanes, the display of the planned direction of travel to the left will continue during the period from before the lane change to the end, and then. Can be terminated.
As described above, in the present embodiment, the winker lights 11 and 12 that display the planned traveling direction of the automobile 1 to the right or left toward the outside of the vehicle and notify the surroundings are desired to continue the display or end the display. It is possible to carry out a display more suitable than before according to each situation such as when desired. The display that matches the situation can be displayed without bothering the occupants and without giving a sense of discomfort.

[Second Embodiment]
Next, the traveling direction display device 10 according to the second embodiment of the present invention will be described. In the following description, the differences from the first embodiment will be mainly described, and the same reference numerals will be given to the configurations having commonality with the first embodiment, and the description thereof will be omitted.

FIG. 6 is a flowchart of the traveling direction display end processing according to the second embodiment of the present invention.

In the traveling direction display end process of FIG. 6, the controller 15 first acquires the current steering angle of the steering device 20 as the detected steering angle, and the absolute value obtained by subtracting the reference steering angle from the detected steering angle is the predetermined return angle. It is determined whether or not the difference is larger than the difference (step ST21).
When the absolute value obtained by subtracting the reference rudder angle from the detected rudder angle becomes larger than the predetermined return angle difference, the controller 15 then determines whether the absolute value obtained by subtracting the reference rudder angle from the detected rudder angle returns to the return angle difference or less. It is determined whether or not (step ST22).
Based on these series of determinations, the controller 15 can determine that the steering 21 is intentionally operated to the right or left beyond the return angle difference, and then returned so as to be equal to or less than the return angle difference.
Then, when the absolute value obtained by subtracting the reference steering angle from the detected steering angle returns to the return angle difference or less, the controller 15 ends the lighting of the winker lights 11 and 12 through the switch module 13 (step ST13).
This ends the display of the planned travel direction to the right or left.

As described above, in the present embodiment, the absolute value is compared with the return angle difference, not the value obtained by subtracting the reference steering angle from the detected steering angle. Therefore, whether the steering 21 is steered to the right or to the left, it can be effectively compared with the return angle difference. That is, the return angle difference is set on both sides of the reference steering angle on the scale of the detection steering angle of the steering device 20.
Therefore, for example, not only when changing lanes to the right in the middle of a right curve, but also when changing lanes to the left, the display of the planned travel direction to the left is started before the lane change, and the display is changed to the right. It can be continued during the lane change to loosen the steering, and further until it starts to drive along the diagonal right curve in the changed lane. Similarly, even if you change lanes to the right in the middle of the left curve and drive on the left curve after changing lanes, the display of the planned direction of travel to the right will continue during the period from before the lane change to the end, and then. Can be terminated.

[Third Embodiment]
Next, the traveling direction display device 10 according to the third embodiment of the present invention will be described. In the following description, the differences from the second embodiment will be mainly described, and the same reference numerals will be given to the configurations having commonality with the second embodiment, and the description thereof will be omitted.

FIG. 7 is a flowchart of the traveling direction display end processing according to the third embodiment of the present invention.

In the traveling direction display end process of FIG. 7, the controller 15 first acquires the current steering angle of the steering device 20 as the detected steering angle, and the absolute value obtained by subtracting the reference steering angle from the detected steering angle is the predetermined determination start. It is determined whether or not the angle difference is larger than the angle difference (step ST31).
Here, the determination start angle difference may be a value larger than the return angle difference.
When the absolute value obtained by subtracting the reference rudder angle from the detected rudder angle becomes larger than the predetermined determination start angle difference, the controller 15 then returns the absolute value obtained by subtracting the reference rudder angle from the detected rudder angle to the return angle difference or less. It is determined whether or not (step ST22).
Based on these series of determinations, the controller 15 can determine that the steering 21 is intentionally operated to the right or left larger than the determination start angle difference, and then returned so as to be equal to or less than the return angle difference. ..
Then, when the absolute value obtained by subtracting the reference steering angle from the detected steering angle returns to the return angle difference or less, the controller 15 ends the lighting of the winker lights 11 and 12 through the switch module 13 (step ST13).
This ends the display of the planned travel direction to the right or left.

As described above, in the present embodiment, the controller 15 compares the absolute value obtained by subtracting the reference rudder angle from the detected rudder angle of the steering device 20 with the determination start angle difference larger than the return angle difference, and is equal to or greater than the determination start angle difference. When the steering is steered to, the return judgment within the range of the return angle difference based on the reference steering angle is started.
Therefore, for example, when the display of the planned traveling direction by the winker lights 11 and 12 is started for a right / left turn, the minute steering before the subsequent right / left turn can be prevented from being used for the return determination. Even if the display of the planned traveling direction is started before the minute steering is performed, the display can be continued until the right or left turn is completed, and can be ended after the right or left turn is completed. In particular, by making the determination start angle difference larger than the return angle difference, it is possible to cancel a relatively large steering without hindering an appropriate end determination. For example, changing lanes before turning left or right can prevent the display of the planned direction of travel from being interrupted. The display can be started before turning left or right, continued from the lane change to turning left or right, and ended after the turn left or right is completed.
It is possible to prevent the blinker lights 11 and 12 from being turned off by the minute steering of the steering 21 while reducing the return angle difference to make the return determination accurate.

[Fourth Embodiment]
Next, the traveling direction display device 10 according to the fourth embodiment of the present invention will be described. In the following description, the differences from the second embodiment will be mainly described, and the same reference numerals will be given to the configurations having commonality with the second embodiment, and the description thereof will be omitted.

FIG. 8 is a flowchart of the traveling direction display end processing according to the fourth embodiment of the present invention.

In the traveling direction display end processing of FIG. 8, the controller 15 first determines whether or not the steering 21 is steered in the planned traveling direction from the reference steering angle based on the current steering angle of the steering device 20 (step). ST41).
When the steering 21 is steered in a direction scheduled to travel from the reference steering angle, the controller 15 then acquires the current steering angle of the steering device 20 as the detection steering angle, and subtracts the reference steering angle from the detected steering angle. It is determined whether or not the absolute value is larger than the predetermined return angle difference (step ST21).
When the absolute value obtained by subtracting the reference rudder angle from the detected rudder angle becomes larger than the predetermined return angle difference, the controller 15 then determines whether the absolute value obtained by subtracting the reference rudder angle from the detected rudder angle returns to the return angle difference or less. It is determined whether or not (step ST22).
Based on these series of judgments, the controller 15 determines that the steering 21 is intentionally operated to the right or left in the planned traveling direction to be larger than the return angle difference, and then returned so as to be equal to or less than the return angle difference. be able to.
Then, when the absolute value obtained by subtracting the reference steering angle from the detected steering angle returns to the return angle difference or less, the controller 15 ends the lighting of the winker lights 11 and 12 through the switch module 13 (step ST13).
This ends the display of the planned travel direction to the right or left.

As described above, in the present embodiment, the controller 15 does not start the end determination immediately after the winker lights 11 and 12 start displaying the scheduled travel direction, but the detection steering angle of the steering device 20 is scheduled to advance. After indicating that the steering has been steered in the direction, the return judgment within the range of the return angle difference based on the reference steering angle is started.
Therefore, for example, when the display of the planned traveling direction by the winker lights 11 and 12 is started for turning left or right, the subsequent steering in the opposite direction can be prevented from being used for the return determination. Even if the display of the planned traveling direction is started before steering in the opposite direction, the display can be continued until the right or left turn is completed, and can be ended after the right or left turn is completed. For example, even when turning left or right on a narrow side road, the display for turning left or right is started before steering in the opposite direction due to a large turn, and the display continues from reverse steering until turning left or right, and the turn is completed. You can end the display later. In addition to this, for example, even if the approach road to the intersection curves in the opposite direction to the direction of turning left or right, the display starts at that curve and continues until you enter the intersection along the curve and turn left or right. Then, the display can be terminated after the right / left turn is completed.

[Fifth Embodiment]
Next, the traveling direction display device 10 according to the fifth embodiment of the present invention will be described. In the following description, the differences from the third embodiment will be mainly described, and the same reference numerals will be given to the configurations having commonality with the third embodiment, and the description thereof will be omitted.

FIG. 9 is a flowchart of the traveling direction display end processing according to the fifth embodiment of the present invention.

In the traveling direction display end processing of FIG. 9, the controller 15 first determines whether or not the steering 21 is steered in the planned traveling direction from the reference steering angle based on the current steering angle of the steering device 20 (step). ST41).
When the steering 21 is steered in a direction scheduled to travel from the reference steering angle, the controller 15 then acquires the current steering angle of the steering device 20 as the detection steering angle, and subtracts the reference steering angle from the detected steering angle. It is determined whether or not the absolute value is larger than the predetermined determination start angle difference (step ST31).
Here, the determination start angle difference may be a value larger than the return angle difference.
When the absolute value obtained by subtracting the reference rudder angle from the detected rudder angle becomes larger than the predetermined determination start angle difference, the controller 15 then returns the absolute value obtained by subtracting the reference rudder angle from the detected rudder angle to the return angle difference or less. It is determined whether or not (step ST22).
Based on these series of judgments, the controller 15 determines that the steering 21 is intentionally operated to the right or left in the planned traveling direction to be larger than the determination start angle difference, and then returned so as to be equal to or less than the return angle difference. can do.
Then, when the absolute value obtained by subtracting the reference steering angle from the detected steering angle returns to the return angle difference or less, the controller 15 ends the lighting of the winker lights 11 and 12 through the switch module 13 (step ST13).
This ends the display of the planned travel direction to the right or left.

As described above, in the present embodiment, after the detection steering angle of the steering device 20 is steered to a predetermined determination start angle difference larger than the return angle difference from the reference steering angle in the planned traveling direction, the controller 15 is steered. The return judgment within the range of the return angle difference based on the reference steering angle is started.
Therefore, for example, when the display of the planned traveling direction by the winker lights 11 and 12 is started for turning left or right, the subsequent steering in the opposite direction or the minute steering before turning left or right can be prevented from being used for the return judgment. .. Even if the display of the planned traveling direction is started before the minute steering or the steering in the opposite direction is performed, the display can be continued until the right or left turn is completed and ended after the right or left turn is completed. For example, even if the approach road to the intersection is a winding curve that turns slightly to the left or right, the display for turning left or right is started on that winding curve, and the display is continued during the subsequent minute steering or reverse steering, and then to the right. The display can be terminated after the left turn is completed.

[Sixth Embodiment]
Next, the traveling direction display device 10 according to the sixth embodiment of the present invention will be described. In the following description, the differences from the first embodiment will be mainly described, and the same reference numerals will be given to the configurations having commonality with the first embodiment, and the description thereof will be omitted.

FIG. 10 is a flowchart of the traveling direction display start processing according to the sixth embodiment of the present invention.

In the traveling direction display start processing of FIG. 10, the controller 15 first determines whether or not the winker lever 31 has been operated based on the output signal of the detection unit 32 of the winker lever device 30 (step ST1).
Then, when the winker lever 31 is operated, the controller 15 turns on the winker lights 11 and 12 in the right or left operation direction through the switch module 13 (step ST2). As a result, the blinker lights 11 and 12 on the operated side start blinking.
Next, the controller 15 acquires the steering angle of the steering 21 already operated at the timing when the winker lever 31 is operated as a reference steering angle based on the output signal of the encoder 22 of the steering device 20 (step ST3). ).

After acquiring the reference steering angle, the controller 15 acquires the situation information from the information acquisition device 40 (step ST51).
The controller 15 acquires information such as the number of lanes, the shape, and the structure of the road from the information acquisition device 40, for example, as situation information of the road on which the automobile 1 is traveling or the road on which the automobile 1 is scheduled to travel. Further, for example, as situation information of an intersection where a vehicle 1 enters or turns left or right, information such as the number of lanes of the intersection, the presence or absence of a right turn lane, the presence or absence of a left turn lane, the shape, and the structure is acquired.
Then, the controller 15 performs the plurality of traveling direction display end processing of FIGS. 5 to 9 in which the start conditions for the return determination within the range of the return angle difference with respect to the reference steering angle are different according to the acquired situation information. One of them is selected (step ST52).
Further, the controller 15 updates the set value used in the selected traveling direction display end process as necessary (step ST53).
For example, when the end processing of FIGS. 5, 6 and 8 is selected, the return angle difference is updated to a value suitable for the situation. When the end processing of FIGS. 7 and 9 is selected, the return angle difference and the determination start angle difference are updated to values suitable for the situation.
After that, the controller 15 activates the selected traveling direction display end process (step ST4).

Next, a method in which the controller 15 selects the traveling direction display end processing according to the situation information will be described.
FIG. 11 is an explanatory diagram of an example of a road and an intersection in which the automobile 1 changes lanes or turns left or right.
In FIG. 11A, the automobile 1 changes its course to the right lane in the middle of the right curve. In this case, the controller 15 selects, for example, the termination process of FIG.
In FIG. 11B, the automobile 1 changes its course to the left lane in the middle of the left curve. In this case, the controller 15 selects, for example, the termination process of FIG.
In FIG. 11C, the automobile 1 changes its course to the left lane in the middle of the right curve. In this case, the controller 15 selects, for example, the termination process of FIG.
In FIG. 11D, the automobile 1 changes its course to the right lane in the middle of the left curve. In this case, the controller 15 selects, for example, the termination process of FIG.
In FIG. 11 (E), the automobile 1 turns right after changing the course to the right lane. In this case, the controller 15 selects, for example, the termination process of FIG. Further, the determination start angle difference is set to a value larger than the steering angle required for changing lanes.
In FIG. 11F, the automobile 1 makes a large turn to the narrow alley on the left side. In this case, the controller 15 selects, for example, the termination process of FIG.
In FIG. 11 (G), the automobile 1 makes a right turn after entering the intersection from the road on the left curve. In this case, the controller 15 selects, for example, the termination process of FIG.
In FIG. 11 (H), the automobile 1 makes a right turn after entering the intersection from a gentle zigzag road. In this case, the controller 15 selects, for example, the termination process of FIG. Further, the determination start angle difference is set to a value larger than the steering angle required for the zigzag folding.
As a result, in any of the cases of FIGS. 11A to 11H, the automobile 1 appropriately turns on the winker lights 11 and 12 before changing lanes or entering an intersection, and changes course or turns left or right. The lighting can be continued until the series of steering for the vehicle is completed, and the lighting can be terminated after the series of steering is completed.

As described above, in the present embodiment, the information acquisition device 40 provided in the automobile 1 enters or turns left or right on the road on which the automobile 1 is traveling, the road on the route on which the automobile 1 is scheduled to travel, or the automobile 1. Get situation information about intersections. Then, the controller 15 refers to the return angle difference, the determination start angle difference, and the return determination start condition within the range of the return angle difference based on the reference steering angle, which are changed according to the acquired situation information. The return judgment within the range of the return angle difference based on the rudder angle is started.
Therefore, for example, depending on the situation such as the road on which the vehicle 1 is traveling, the road on the route on which the vehicle 1 is scheduled to travel, or the shape, the number of lanes, or the traffic condition of the intersection where the vehicle 1 enters or turns left or right, the above-mentioned description is made. By making the start judgment selected from the start conditions of a plurality of return judgments, the return judgment can be made suitable according to the situation.
Further, for example, the return angle depends on the situation such as the shape, the number of lanes, or the traffic condition of the road on which the vehicle 1 is traveling, the road on the route on which the vehicle 1 is scheduled to travel, or the intersection where the vehicle 1 enters or turns left or right. By changing the difference or the difference in the determination start angle, the balance between the steering that is desired to be used for the end determination and the steering that is not desired to be used for the end determination can be made suitable according to the situation.

[7th Embodiment]
Next, the traveling direction display device 10 according to the seventh embodiment of the present invention will be described. In the following description, the differences from the sixth embodiment will be mainly described, and the same reference numerals will be given to the configurations having commonality with the sixth embodiment, and the description thereof will be omitted.

FIG. 12 is a block diagram of the traveling direction display device 10 according to the seventh embodiment of the present invention.

FIG. 12 shows a traveling direction display device 10, a right electronic damper 51, a left electronic damper 52, a winker lever device 30, and an information acquisition device 40 as peripheral devices thereof. These devices are provided in the automobile 1 of FIG.
The right electronic damper 51 is a shock absorber provided in the suspension device of the right front wheel of the vehicle body 2.
The left electronic damper 52 is a shock absorber provided in the suspension device of the left front wheel of the vehicle body 2.
The sinking amount of the right electron damper 51 and the sinking amount of the left electron damper 52 are physical quantities that fluctuate according to the inclination of the vehicle body 2. The posture of the vehicle body 2 such as tilt changes according to the operation of the steering 21.
The controller 15 can calculate the inclination of the vehicle body 2 in the left-right direction, which correlates with the rotation amount of the steering 21, based on the sinking amount of the right electronic damper 51 and the sinking amount of the left electronic damper 52.
Instead of the sinking amount of the electronic damper, the sinking amount of the suspension or the detection amount of the yaw sensor that detects the posture of the vehicle body 2 of the automobile 1 may be used as a physical quantity.

FIG. 13 is a flowchart of the traveling direction display start processing executed by the controller 15 of FIG. The processing content of FIG. 13 is basically the same as that of FIG. However, instead of the steering amount of the steering 21, the inclination angle of the vehicle body 2 obtained from the sinking amount of the electronic damper is used.
In the traveling direction display start processing of FIG. 13, the controller 15 first determines whether or not the winker lever 31 has been operated based on the output signal of the detection unit 32 of the winker lever device 30 (step ST1).
Then, when the winker lever 31 is operated, the controller 15 turns on the winker lights 11 and 12 in the right or left operation direction through the switch module 13 (step ST2). As a result, the blinker lights 11 and 12 on the operated side start blinking.
Next, the controller 15 uses the tilt of the vehicle body 2 that has already occurred at the timing when the winker lever 31 is operated as a reference tilt angle based on the sinking amount of the right electronic damper 51 and the sinking amount of the left electronic damper 52. Acquire (step ST61).

After acquiring the reference tilt angle, the controller 15 acquires the situation information from the information acquisition device 40 (step ST51).
The controller 15 acquires information such as the number of lanes, the shape, and the structure of the road from the information acquisition device 40, for example, as situation information of the road on which the automobile 1 is traveling or the road on which the automobile 1 is scheduled to travel. Further, for example, as situation information of an intersection where a vehicle 1 enters or turns left or right, information such as the number of lanes of the intersection, the presence or absence of a right turn lane, the presence or absence of a left turn lane, the shape, and the structure is acquired.
Then, the controller 15 selects one of a plurality of traveling direction display end processes having different start conditions for return determination within the range of the return tilt angle difference based on the reference tilt angle according to the acquired situation information. Select (step ST52).
Further, the controller 15 updates the set value used in the selected traveling direction display end process as necessary (step ST53).
After that, the controller 15 activates the selected traveling direction display end process (step ST4).

Next, a plurality of traveling direction display end processes executed by the controller 15 will be described. The processing content of the end of displaying the plurality of traveling directions is basically the same as that of FIGS. 5 to 9. However, instead of the steering amount of the steering 21, the inclination angle of the vehicle body 2 obtained from the sinking amount of the electronic damper is used for various determinations.
Here, the traveling direction display end processing of FIG. 14 will be described as an example.

FIG. 14 is a flowchart of an example of the traveling direction display end processing executed by the controller 15 of FIG.

In the traveling direction display end processing of FIG. 14, the controller 15 first determines whether or not the vehicle body 2 is steered in the planned traveling direction from the reference tilt angle and changed to one based on the current inclination angle of the vehicle body 2. (Step ST41).
When the vehicle body 2 changes from the reference tilt angle to the one steered in the planned traveling direction, the controller 15 then acquires the current tilt angle of the vehicle body 2 as the detected tilt angle, and obtains the reference tilt angle from the detected tilt angle. It is determined whether or not the absolute value obtained by subtracting the above is larger than the predetermined determination start angle difference (step ST71).
Here, the determination start angle difference may be a value larger than the return angle difference.
When the absolute value obtained by subtracting the reference tilt angle from the detected tilt angle becomes larger than the predetermined determination start angle difference, the controller 15 then returns the absolute value obtained by subtracting the reference tilt angle from the detected tilt angle to the return angle difference or less. It is determined whether or not (step ST72).
Based on these series of judgments, the controller 15 returned so that the posture of the vehicle body 2 was tilted to the right or left more than the judgment start angle difference by intentional steering in the planned traveling direction, and then became less than or equal to the return angle difference. You can judge that.
Then, when the absolute value obtained by subtracting the reference tilt angle from the detected tilt angle returns to the return angle difference or less, the controller 15 ends the lighting of the winker lights 11 and 12 through the switch module 13 (step ST13). This ends the display of the planned travel direction to the right or left.

As described above, in the present embodiment, the controller 15 tilts with reference to the tilt angle of the vehicle body 2 that changes according to the posture change of the automobile 1 at the timing corresponding to the display start of the winker lights 11 and 12 in the scheduled traveling direction. Get as an angle.
After that, when the detected tilt angle returns to the range of the return angle difference with respect to the reference tilt angle amount, the controller 15 ends the display of the planned traveling direction by the winker lights 11 and 12.
Therefore, even in a situation where the detected tilt angle does not return to, for example, a straight-ahead state, the display of the planned traveling direction by the winker lights 11 and 12 can be terminated.
For example, if you change lanes to the right in the middle of a right curve and drive on the right curve even after changing lanes, start displaying the planned direction of travel to the right before changing lanes, and turn the display to the right for steering. It can continue during the change of lane, and continue until it starts to drive along the diagonal right curve in the changed lane. Similarly, even if you change lanes to the left in the middle of the left curve and drive on the left curve after changing lanes, the display of the planned direction of travel to the left will continue during the period from before the lane change to the end, and then. Can be terminated.
In the present embodiment, the winker lights 11 and 12 that display the planned traveling direction of the automobile 1 to the right or left toward the outside of the vehicle and notify the surroundings are when it is desired to continue the display or when it is desired to end the display. It is possible to carry out a display corresponding to more suitable than before according to each situation of. The display that matches the situation can be displayed without bothering the occupants and without giving a sense of discomfort.

[Eighth Embodiment]
Next, the traveling direction display device 10 according to the eighth embodiment of the present invention will be described. In the following description, the differences from the seventh embodiment will be mainly described, and the same reference numerals will be given to the configurations having commonality with the seventh embodiment, and the description thereof will be omitted.

FIG. 15 is a block diagram of the traveling direction display device 10 according to the eighth embodiment of the present invention.

FIG. 15 shows a traveling direction display device 10, a liquid level sensor 61, a winker lever device 30, and an information acquisition device 40 as peripheral devices thereof. These devices are provided in the automobile 1 of FIG.
The liquid level sensor 61 detects the height position or inclination of the liquid level of a liquid such as gasoline or oil loaded on the automobile 1. The height position and inclination of the liquid level of the liquid loaded on the automobile 1 are physical quantities that fluctuate according to the inclination of the vehicle body 2. The posture of the vehicle body 2 such as tilt changes according to the operation of the steering 21.
The controller 15 can calculate the inclination of the vehicle body 2 in the left-right direction, which correlates with the amount of rotation of the steering 21, based on the height position and inclination of the liquid level of the liquid loaded on the automobile 1.

FIG. 16 is a flowchart of the traveling direction display start processing executed by the controller 15 of FIG. The processing content of FIG. 16 is basically the same as that of FIG. However, instead of the tilt angle of the vehicle body 2 obtained from the sinking amount of the electronic damper, the tilt angle of the liquid level is used.

In the traveling direction display start processing of FIG. 16, the controller 15 first determines whether or not the winker lever 31 has been operated based on the output signal of the detection unit 32 of the winker lever device 30 (step ST1).
Then, when the winker lever 31 is operated, the controller 15 turns on the winker lights 11 and 12 in the right or left operation direction through the switch module 13. As a result, the operated winker lights 11 and 12 start blinking (step ST2).
Next, the controller 15 acquires as a reference liquid level angle corresponding to the inclination of the vehicle body 2 that has already occurred at the timing when the winker lever 31 is operated, based on the liquid level angle detected by the liquid level sensor 61. (Step ST81).

After acquiring the reference liquid level angle, the controller 15 acquires the situation information from the information acquisition device 40 (step ST51).
Then, the controller 15 is selected from a plurality of traveling direction display end processes in which the start conditions for the return determination to the range of the return angle difference of the liquid level based on the reference liquid level angle are different according to the acquired situation information. Select one (step ST52).
Further, the controller 15 updates the set value used in the selected traveling direction display end process as necessary (step ST53).
After that, the controller 15 activates the selected traveling direction display end process (step ST4).

Next, a plurality of traveling direction display end processes executed by the controller 15 will be described. The processing content of the end of displaying the plurality of traveling directions is basically the same as that of the seventh embodiment. However, instead of the tilt angle of the vehicle body 2 obtained from the sinking amount of the electronic damper, the tilt angle of the liquid level is used for various determinations.
Here, the traveling direction display end processing of FIG. 17 will be described as an example.

FIG. 17 is a flowchart of an example of the traveling direction display end processing executed by the controller 15 of FIG.

In the traveling direction display end processing of FIG. 17, the controller 15 first determines whether or not the vehicle body 2 is steered in the planned traveling direction from the reference liquid level angle and changed to one based on the current inclination angle of the liquid level. Judgment (step ST41).
When the vehicle body 2 changes from the reference liquid level angle to the one steered in the planned traveling direction, the controller 15 then acquires the current liquid level inclination angle as the detected liquid level angle and uses the detected liquid level angle. It is determined whether or not the absolute value obtained by subtracting the reference liquid level angle is larger than the predetermined determination start angle difference (step ST91).
Here, the determination start angle difference may be a value larger than the return angle difference.
When the absolute value obtained by subtracting the reference liquid level angle from the detected liquid level angle becomes larger than the predetermined determination start angle difference, the controller 15 then determines that the absolute value obtained by subtracting the reference liquid level angle from the detected liquid level angle is the return angle. It is determined whether or not the difference has returned to or less than the difference (step ST92).
Based on these series of judgments, the controller 15 returned so that the posture of the vehicle body 2 was tilted to the right or left more than the judgment start angle difference by intentional steering in the planned traveling direction, and then became less than or equal to the return angle difference. You can judge that.
Then, when the absolute value obtained by subtracting the reference liquid level angle from the detected liquid level angle returns to the return angle difference or less, the controller 15 ends the lighting of the winker lights 11 and 12 through the switch module 13 (step ST13). This ends the display of the planned travel direction to the right or left.

As described above, in the present embodiment, the controller 15 uses the tilt angle of the liquid level, which changes according to the posture change of the automobile 1, as the reference liquid at the timing corresponding to the start of display of the winker lights 11 and 12 in the scheduled traveling direction. Obtained as a surface angle.
After that, when the detected liquid level angle returns to the range of the return angle difference with respect to the reference liquid level angle, the controller 15 ends the display of the planned traveling direction by the winker lights 11 and 12.
Therefore, even in a situation where the detected liquid level angle does not return to, for example, a straight-ahead state, the display of the planned traveling direction by the winker lights 11 and 12 can be terminated.
For example, if you change lanes to the right in the middle of a right curve and drive on the right curve even after changing lanes, start displaying the planned direction of travel to the right before changing lanes, and turn the display to the right for steering. It can continue during the change of lane, and continue until it starts to drive along the diagonal right curve in the changed lane. Similarly, even if you change lanes to the left in the middle of the left curve and drive on the left curve after changing lanes, the display of the planned direction of travel to the left will continue during the period from before the lane change to the end, and then. Can be terminated.
In the present embodiment, the winker lights 11 and 12 that display the planned traveling direction of the automobile 1 to the right or left toward the outside of the vehicle and notify the surroundings are when it is desired to continue the display or when it is desired to end the display. It is possible to carry out a display corresponding to more suitable than before according to each situation of. The display that matches the situation can be displayed without bothering the occupants and without giving a sense of discomfort.

The above embodiment is an example of a preferred embodiment of the present invention, but the present invention is not limited to this, and various modifications or modifications can be made without departing from the gist of the invention.

In the above embodiment, a steering device 20 having a steering 21 is used for steering.
In addition to this, for example, a steering device 20 using a joystick may be used. The steering device 20 using the joystick may move the steering 21 link mechanism linked to the direction of the wheels according to the tilting direction and amount of the joystick, for example, by a by-wire method, and may be a lever 31.

In the above embodiment, the steering device 20 is steered by a steering operation by an occupant.
In addition to this, for example, the steering device 20 may be steered by an automatic driving control device or a driving support control device. In this case, the automatic driving control device or the driving support control device may output a display instruction of the planned traveling direction to the right or left to the controller 15 when starting the steering control, instead of the winker lever device 30. ..

In the above embodiment, the traveling direction display device 10 displays the planned traveling direction to the right or left of the own vehicle on the winker lights 11 and 12 and the liquid crystal device 14 provided in the own vehicle.
In addition to this, for example, the traveling direction display device 10 may cause a liquid crystal device 14 of another vehicle to display the planned traveling direction to the right or left of the own vehicle.

FIG. 18 is a configuration diagram of a traveling direction display device 10 for displaying the traveling direction of the own vehicle 100 on the other vehicle 101.
FIG. 18 shows a steering device 20, a winker lever device 30, an information acquisition device 40, and a vehicle wireless communication unit 71 as peripheral devices thereof together with the traveling direction display device 10. These devices are provided in the automobile 1 of FIG.
Further, FIG. 18 shows the other vehicle wireless communication unit 102 and the other vehicle liquid crystal device 103 as the equipment provided in the other vehicle 101. The own vehicle wireless communication unit 71 and the other vehicle wireless communication unit 102 can perform data communication with each other through the wireless communication network 104.
In this case, the traveling direction display device 10 causes the own vehicle wireless communication unit 71 to transmit the direction instruction information to be output to the liquid crystal device 14 of the own vehicle 100. The direction instruction information is received by the other vehicle wireless communication unit 102 of the other vehicle 101 traveling nearby through the wireless communication network 104. The other vehicle liquid crystal device 103 displays the received direction instruction information.

In the above embodiment, the traveling direction display device 10 displays the planned traveling direction to the right or left based on the operation of the winker lever 31 of the winker lever device 30 for the direction instruction.
In addition to this, for example, instead of the winker lever device 30, a direction instruction operation device having a right button switch and a left button switch is provided, and the traveling direction display device 10 is based on the fact that one of the button switches is pressed. The planned direction of travel to the right or left may be displayed. In this case, the controller 15 may acquire the existing steering angle of the steering device 20 as the reference steering angle based on the operation timing of the direction instruction operating device or the display start timing of the traveling direction display device 10.
Further, the direction instruction operating device may have an electrostatic touch panel instead of the button switch, and may detect the left direction and the right direction separately based on the contact direction on the surface of the touch panel.

1 ... automobile (vehicle), 2 ... car body, 3 ... cabin, 10 ... traveling direction display device, 11 ... right winker light, 12 ... left winker light, 13 ... switch module, 14 ... liquid crystal device, 15 ... controller, 16 ... Memory, 20 ... Steering device, 21 ... Steering, 22 ... Encoder, 30 ... Winker lever device (direction instruction operation unit), 31 ... Winker lever, 32 ... Detection unit, 40 ... Information acquisition device, 51 ... Right electronic damper, 52 ... Left electronic damper, 61 ... Liquid level sensor, 71 ... Own vehicle wireless communication unit, 100 ... Own vehicle, 101 ... Other vehicle, 102 ... Other vehicle wireless communication unit, 103 ... Other vehicle liquid crystal device, 104 ... Wireless communication network

Claims (4)

A display member that displays the planned direction of travel of the vehicle and
An acquisition unit that acquires the existing steering angle of the steering device that changes the traveling direction of the vehicle as a reference steering angle when the display member starts displaying the planned traveling direction.
When the detected rudder angle of the steering device returns to the range of the return angle difference with respect to the reference rudder angle, the end control unit for ending the display of the planned traveling direction by the display member, and the end control unit.
Have,
The display member is provided on the outer surface of the vehicle, and displays the planned traveling direction to the right or left based on the operation of the direction instruction operation unit provided on the vehicle.
The acquisition unit acquires the existing steering angle of the steering device as a reference steering angle based on the operation timing of the direction instruction operation unit or the display start timing of the display member.
The end control unit
Based on the detection steering angle of the steering device, it is determined that the vehicle is being steered in the planned traveling direction, and further.
The difference between the detected steering angle of the steering device and the reference steering angle is steering that is equal to or greater than the return angle difference, or steering is greater than or equal to the determination start angle difference that is larger than the return angle difference. After judging
The return judgment within the range of the return angle difference based on the reference steering angle is started .
Vehicle traveling direction display device.
The vehicle is provided with an information acquisition unit for acquiring situation information about a road on which the vehicle is traveling, a road on a route on which the vehicle is scheduled to travel, or an intersection where the vehicle enters or turns left or right. ,
The end control unit
When the acquired situation information makes a large turn to the left in a narrow alley, when entering the intersection from a curved road, turn right or left in the opposite direction of the curve, or enter the intersection from a zigzag road and turn left or right. If you do,
Based on the detection steering angle of the steering device, it is determined that the vehicle is being steered in the planned traveling direction, and further.
The difference between the detected steering angle of the steering device and the reference steering angle is steering that is equal to or greater than the return angle difference, or steering is greater than or equal to the determination start angle difference that is larger than the return angle difference. After judging
The return judgment within the range of the return angle difference based on the reference steering angle is started, and the return judgment is started.
When the acquired situation information changes lanes in the middle of a curve, or when turning left or right after changing lanes,
The difference between the detected steering angle of the steering device and the reference steering angle is steering that is equal to or greater than the return angle difference, or steering is greater than or equal to the determination start angle difference that is larger than the return angle difference. After judging
The return judgment within the range of the return angle difference based on the reference steering angle is started .
The vehicle traveling direction display device according to claim 1.
The end control unit
The difference between the detected steering angle of the steering device and the reference steering angle is determined by the absolute value of the difference.
The vehicle traveling direction display device according to claim 1 or 2.
The return angle difference is set on both sides of the reference steering angle on the scale of the detection steering angle of the steering device.
The vehicle traveling direction display device according to any one of claims 1 to 3 .

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