JP6815687B2 - Vehicle display system - Google Patents

Description

The present invention relates to a vehicle display system.

The instrument panel (meter panel) of a vehicle such as an automobile is provided with a meter that displays the vehicle speed and the engine speed. In the conventional typical one, an analog mechanical meter is adopted, but in recent instrument panels, the whole is composed of a liquid crystal panel (liquid crystal display), and the meter displays an image on the liquid crystal panel. There is something to be done.

In addition to the meter, this recent instrument panel can display outside information such as night-vision images in front of the vehicle (night-vision images) and images behind the vehicle (back-view images) taken by an infrared camera. it can. Since the instrument panel is arranged at a position that is easy for the driver to see, if the information outside the vehicle is projected on the instrument panel, the driver can easily recognize the information outside the vehicle when the vehicle starts. ..

JP-A-2009-179240 Japanese Unexamined Patent Publication No. 2008-254539

However, in small cars, the size of the instrument panel is small. Therefore, when the vehicle outside information is displayed on the instrument panel together with the meter information such as the vehicle speed information that is required to be displayed by law, the display size of the vehicle outside information is restricted and it is difficult for the driver to visually recognize the vehicle outside information.

An object of the present invention is to provide a vehicle display system capable of displaying information outside the vehicle on an instrument panel with good visibility.

In order to achieve the above object, the vehicle display system according to the present invention comprises a photographing means for photographing at least one area inside or outside the vehicle and an instrument panel of the vehicle, and can display an image. The first display means and the second display means, which are provided separately from the first display means and can display an image, and the image taken by the photographing means should be displayed on the first display means and displayed on the instrument panel. The display control means for displaying the meter function information on the second display means is included.

The meter function information to be displayed on the instrument panel includes vehicle speed information indicating the traveling speed (vehicle speed) of the vehicle.

According to this configuration, the instrument panel of the vehicle is configured by the first display means capable of displaying an image. Further, apart from the first display means, a second display means capable of displaying an image is provided. At least one of the images of at least one area inside or outside the vehicle taken by the photographing means, that is, the information by the inside image or the information by the outside image (hereinafter, referred to as "inside and outside information" in this column) is used as the first display means. When displayed, the meter function information to be displayed on the instrument panel is displayed on the second display means.

The instrument panel is arranged in a position that is easily visible to the driver. Therefore, by displaying the vehicle interior / external information on the first display means constituting the instrument panel, the driver can easily recognize the projected vehicle interior / exterior information when the vehicle starts (including retreating). can do.

Then, the meter function information to be displayed on the instrument panel is not displayed in the margin portion on the display screen of the first display means while avoiding the information inside and outside the vehicle, but is displayed on the second display means. Therefore, while the driver can be made aware of the meter function information necessary for driving the vehicle, the size of the inside / outside information is not restricted by the display of the meter function information, and the inside / outside information is displayed with good visibility. be able to. Therefore, in a compact car in which the size of the first display means is inevitably small, a particularly excellent effect can be exhibited, and the usability of the function of displaying the inside / outside information of the vehicle can be effectively improved.

The photographing means may photograph the rear region including the course when the vehicle moves backward (reverse). In this case, the display control means causes the first display means to display the meter function information in the state where the forward range of the vehicle is configured, and the image is taken by the photographing means in the state where the reverse range of the vehicle is configured. The image may be displayed on the first display means.

The vehicle display system further includes a steering angle acquisition means for acquiring the steering angle of the steering mechanism of the vehicle, the second display means are arranged at a plurality of positions different from each other in the vehicle width direction, and the display control means When the image captured by the photographing means is displayed on the first display means, the meter function information is displayed on the second display means according to the steering angle acquired by the steering angle acquisition means among the plurality of second display means. You may let me.

While the vehicle is running, the farther the steering angle of the steering mechanism is from the midpoint of the steering angle, the more often the driver's line of sight moves away from the center of the vehicle in the direction of the steering angle. By displaying the meter function information on the second display means at the position corresponding to the steering angle of the steering mechanism, the meter function information can be easily visually recognized without the driver moving his / her line of sight significantly.

The plurality of second display means are, for example, a monitor (navigation monitor) of a navigation system mounted in the center of the vehicle dashboard in the vehicle width direction, a rearview mirror monitor provided at a position of a rearview mirror (room mirror), and left and right. There may be two or three or more selected from the side mirror monitors provided at the positions of the side mirrors (side outer mirrors).

According to the present invention, while the driver can be made aware of the meter function information necessary for driving the vehicle, the size of the inside / outside information of the vehicle is not restricted by the display of the meter function information, and the inside / outside information of the vehicle can be visually recognized. It can be displayed in a good manner.

It is a block diagram which shows the electric structure of the vehicle which mounted the display system which concerns on one Embodiment of this invention. It is a figure which shows an example of the layout of a monitor. It is a flowchart which shows the flow of the process for display control. It is a figure which shows an example of the display on an instrument panel monitor and a right side mirror monitor.

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

<Vehicle electrical configuration>
FIG. 1 is a block diagram showing an electrical configuration of a vehicle 1 equipped with a display system according to an embodiment of the present invention.

The vehicle 1 is provided with a plurality of ECUs (Electronic Control Units) having a configuration including a CPU and a memory. The plurality of ECUs include a transmission ECU 11 and a display control ECU 12. Each ECU is connected so that bidirectional communication can be performed by a CAN (Controller Area Network) communication protocol.

The vehicle 1 is equipped with, for example, an automatic transmission that automatically shifts the gear ratio as a transmission that shifts the driving force from the engine. The automatic transmission may be a stepped automatic transmission (AT: Automatic Transmission) or a continuously variable transmission (CVT).

The transmission ECU 11 mainly controls the automatic transmission.

Specifically, the shift position sensor 21 is connected to the transmission ECU 11. The shift position sensor 21 outputs a detection signal according to the position of the shift lever S (see FIG. 2) arranged in the vehicle interior. As the shift position which is the position of the shift lever (select lever), for example, a P position, an R position, an N position, and a D position are provided. The P position, R position, N position and D position correspond to the P range (parking range), R range (reverse range), N range (neutral range) and D range (drive range) in the automatic transmission, respectively. The shift lever can perform a shift operation between the P position, the R position, the N position and the D position, and the shift operation can instruct the range switching.

Since the transmission ECU 11 changes the range or shift stage of the automatic transmission based on the information acquired from the detection signals of various sensors and / or various information input from other ECUs, each part of the automatic transmission Controls a valve (not shown) included in the hydraulic circuit for supplying oil to the engine.

Further, the vehicle 1 is provided with a steering angle sensor 22. The steering angle sensor 22 outputs, for example, a detection signal according to the steering angle (absolute steering angle) with respect to the steering angle midpoint of the steering mechanism. The steering angle detected by the steering angle sensor 22 takes a positive value when the steering wheel operated by the driver is turned to the right from the neutral position, and takes a negative value when the steering wheel is turned to the left. .. The steering angle detected by the steering angle sensor 22 may be a steering angle (steering angle) which is a rotation operation angle of the steering wheel, or may be a steering angle of the steering wheel by the steering mechanism.

Further, the vehicle 1 is equipped with a plurality of cameras 31 for photographing an area outside the vehicle and a plurality of monitors 41 to 45 for displaying images.

The display control ECU 12 executes display control for displaying an image or the like taken by the camera 31 on the monitors 41 to 45. The display control will be described later.

The camera 31 has, for example, a back camera that captures a rear area including a path caused by the vehicle 1 moving backward (backward), and an image equivalent to a mirror image reflected on the back mirror (room mirror) when viewed from the driver seated in the driver's seat. The rear-view camera to shoot, the right-side camera that captures the same image as the mirror image reflected in the right-side mirror (right-side outer mirror) when viewed from the driver seated in the driver's seat, and the left side when viewed from the driver seated in the driver's seat. A left side camera that captures an image equivalent to the mirror image reflected in the mirror (left side outer mirror) is included. Further, the camera 31 may include a vehicle interior camera for photographing the vehicle interior (particularly the rear seat) and a front camera for photographing the area in front of the vehicle 1. The camera 31 is composed of, for example, a combination of a color CMOS image sensor and a wide-angle lens.

<Arrangement of monitors>
FIG. 2 is a diagram showing an example of the layout of monitors 41 to 45.

The monitors 41 to 45 are a navigation monitor, a back mirror monitor, an instrument panel monitor, a right side mirror monitor, and a left side mirror monitor, respectively, and all of them include, for example, a liquid crystal panel (liquid crystal display).

The navigation monitor 41 is a monitor of the car navigation system, and is arranged at the center of the dashboard D in the vehicle width direction (left-right direction).

The rear-view mirror monitor 42 is arranged at a position where the rear-view mirror is provided, that is, near the upper end portion of the windshield in the vehicle width direction.

The instrument panel monitor 43 is a monitor that constitutes an instrument panel, and is arranged at a position where the instrument panel is provided, for example, in front of the driver's seat.

The right side mirror monitor 44 is arranged at a position where the right side mirror is provided, that is, on the outside (right side) near the front end of the right front side window.

The left side mirror monitor 45 is arranged at a position where the left side mirror is provided, that is, on the outside (left side) near the front end portion of the left front side window.

<Display control>
FIG. 3 is a flowchart showing a processing flow for display control. FIG. 4 is a diagram showing an example of display on the instrument panel monitor 43 and the right side mirror monitor 44.

In order to control the display of images on the navigation monitor 41, the rear-view mirror monitor 42, the instrument panel monitor 43, the right side mirror monitor 44, and the left side mirror monitor 45, the display control ECU 12 executes the process shown in FIG.

In this process for display control, the display control ECU 12 determines whether or not the current shift position is the R position (step S1).

If the current shift position is not the R position (NO in step S1), that is, if the shift position is the P position, the N position, or the D position, the subsequent processing is not executed. In this case, normal information is displayed on the navigation monitor 41, the rear-view mirror monitor 42, the instrument panel monitor 43, the right side mirror monitor 44, and the left side mirror monitor 45, respectively.

The normal information refers to information that should be originally displayed on each of the navigation monitor 41, the rear-view mirror monitor 42, the instrument panel monitor 43, the right side mirror monitor 44, and the left side mirror monitor 45. The normal information of the navigation monitor 41 is information related to navigation or audio. The normal information of the rear-view mirror monitor 42 is an image (information behind the vehicle 1) taken by the rear camera 31. The normal information of the instrument panel monitor 43 includes meter information (instrument information) such as vehicle speed information and engine speed information, warning information such as an abnormality occurrence warning mark or warning message in vehicle 1, cumulative mileage, running fuel consumption, and cruising. Guidance information such as possible distance and outside temperature. The normal information of the right side mirror monitor 44 is an image (information on the right rear of the vehicle 1) taken by the right side camera 31. The normal information of the left side mirror monitor 45 is an image (information on the left rear of the vehicle 1) taken by the left side camera 31.

When the current shift position is the R position (YES in step S1), as shown in FIG. 4, one of the navigation monitor 41, the rearview mirror monitor 42, the right side mirror monitor 44 or the left side mirror monitor 45 Predetermined meter function information is displayed (step S2). The meter function information is all or part of the normal information of the instrument panel monitor 43, and includes at least vehicle speed information that is required to be displayed on an instrument panel or the like by law or the like.

Then, the image taken by the back camera 31, that is, the image of the rear region of the vehicle 1 (hereinafter, referred to as “back view”) is displayed on the instrument panel monitor 43 (step S3), and the process for display control is performed. It will be terminated.

<Effect>
As described above, the instrument panel of the vehicle 1 is configured by the instrument panel monitor 43 capable of displaying an image. In addition to the instrument panel monitor 43, a navigation monitor 41, a rearview mirror monitor 42, a right side mirror monitor 44, and a left side mirror monitor 45 capable of displaying images are provided. When the shift position is set to the R position, the back view is displayed on the instrument panel monitor 43, and the meter function information that should be displayed on the instrument panel is displayed on the navigation monitor 41, rearview mirror monitor 42, right side mirror monitor 44 or left side mirror. It is displayed on one of the monitors 45.

The instrument panel is arranged in a position that is easily visible to the driver. Therefore, since the back view is projected on the instrument panel monitor 43 constituting the instrument panel, the driver can easily recognize the projected back view when the vehicle 1 is retracted.

Then, the meter function information to be displayed on the instrument panel is not displayed in the margin portion of the display screen of the instrument panel monitor 43 while avoiding the back view, but is displayed in the navigation monitor 41, the rearview mirror monitor 42, and the right side mirror monitor. It is displayed on 44 or one of the left side mirror monitors 45. Therefore, while the driver can be made aware of the meter function information necessary for driving the vehicle 1, the size of the back view is not restricted by the display of the meter function information, and the back view can be displayed with good visibility. Can be done. Therefore, in a compact car in which the size of the instrument panel monitor 43 is inevitably small, a particularly excellent effect can be exhibited, and the usability of the function of displaying the back view can be effectively improved.

<Modification example>
Although one embodiment of the present invention has been described above, the present invention can also be implemented in other embodiments.

For example, the meter function information may be displayed on any of the navigation monitor 41, the rear-view mirror monitor 42, the right side mirror monitor 44, or the left side mirror monitor 45, but when determining the display destination, the steering angle of the steering mechanism is determined. May be referred to.

In a configuration in which the steering angle of the steering mechanism is referred to, for example, when the steering angle takes a positive value, the right side mirror monitor 44 is determined as the display destination of the meter function information, and the steering angle takes 0 or a negative value. Occasionally, one of the navigation monitor 41, the rearview mirror monitor 42, or the left side mirror monitor 45, for example, the navigation monitor 41, which does not hinder driving even if normal information is not displayed, is determined as the display destination of the meter function information. May be good.

Further, the farther the steering angle of the steering mechanism is from the midpoint of the steering angle, the more the navigation monitor 41, the rearview mirror monitor 42, the instrument panel monitor 43, the right side mirror monitor 44 or the left side mirror are arranged on the downstream side in the direction of the steering angle. The monitor 45 may be determined as the display destination of the meter function information.

While the vehicle 1 is traveling, the farther the steering angle of the steering mechanism is from the midpoint of the steering angle, the more often the driver's line of sight moves away from the center of the vehicle 1 in the direction of the steering angle. By displaying the meter function information on the navigation monitor 41, rearview mirror monitor 42, right side mirror monitor 44 or left side mirror monitor 45 at positions according to the steering angle of the steering mechanism, the driver does not move his or her line of sight significantly. However, the meter function information can be easily visually recognized.

The monitor on which the meter function information is displayed may include a head-up display for displaying an image on the windshield of the vehicle 1.

Further, in the above-described embodiment, the back view is displayed on the instrument panel monitor 43 when the shift position is the R position, but when the shift position is a position other than the R position, the back view is the instrument panel monitor. It may be displayed on the instrument panel monitor 43, or information other than the back view may be displayed on the instrument panel monitor 43.

For example, when a vehicle interior camera for photographing the vehicle interior is mounted on the vehicle 1 as a camera 31, when the shift position is set to the P position or the N position, the display of the instrument panel monitor 43 is photographed by the vehicle interior camera from the normal information. It may be switched to the image.

Further, the trigger for switching the display of the instrument panel monitor 43 between the normal information and the image such as the back view is not limited to the change of the shift position. For example, when the vehicle 1 is equipped with an infrared camera that captures an area in front of the vehicle 1 as a camera 31, the operation of a switch for switching the on / off of the headlamp is a trigger, and normal information is displayed on the instrument panel monitor when the headlamp is off. The night-vision image displayed on the instrument panel 43 and taken by the infrared camera when the headlamp is lit may be displayed on the instrument panel monitor 43.

Furthermore, although it is assumed that the vehicle 1 is equipped with an automatic transmission, the vehicle 1 may be equipped with a manual transmission (MT) instead of the automatic transmission.

Further, the vehicle 1 may be an electric vehicle, a hybrid vehicle, or the like, and is not limited to an engine vehicle.

In addition, various design changes can be made to the above-mentioned configuration within the scope of the matters described in the claims.

1 Vehicle 12 Display control ECU (display control means)
31 Camera (shooting means)
41 Navi monitor (second display means)
42 Rearview mirror monitor (second display means)
43 Instrument panel monitor (first display means)
44 Right side mirror monitor (second display means)
45 Left side mirror monitor (second display means)

Claims (1)

A means of photographing at least one area inside or outside the vehicle, and
A first display means capable of displaying an image by forming an instrument panel of the vehicle,
A second display means that is provided separately from the first display means and can display an image,
A steering angle acquisition means for acquiring the steering angle of the steering mechanism of the vehicle, and
The display control means includes a display control means for displaying an image captured by the photographing means on the first display means and displaying meter function information to be displayed on the instrument panel on the second display means.
A plurality of the second display means are arranged.
When the display control means displays an image captured by the photographing means on the first display means, the direction of the steering angle increases as the steering angle acquired by the steering angle acquisition means moves away from the steering angle midpoint. A vehicle display system that determines the second display means arranged on the downstream side of the meter as a display destination of the meter function information.

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