JP2013060057A - Driving assist device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a driving assist device that can perform more convenient driving assist when a driver cautiously drives a vehicle by taking care of an ambient environment of the vehicle.SOLUTION: The driving assist device 100 which displays images by switching the images according to the ambient environment of the vehicle and the vehicle state includes a screen display switch 9 a screen display 10 for displaying a rear image of the vehicle when an object is detected around the vehicle and the vehicle is not in an initial advancing state after an ignition-on state. This saves the driver to perform operation for displaying the rear image to properly display it when the vehicle is not in the initial advancing state after an ignition-on state, in other words, a state that the sopped vehicle leaves forward, and when the object is detected around the vehicle.

Description

  The present invention relates to a driving support apparatus that switches and displays an image according to a surrounding situation of a vehicle and a state of the vehicle.

  2. Description of the Related Art Conventionally, an apparatus that displays an image around a host vehicle to a driver has been proposed. For example, in Patent Document 1 below, a driving assistance display that automatically switches and displays a rear image captured by a rear image capturing unit and a front image captured by a front image capturing unit in accordance with the traveling direction of the vehicle. An apparatus is disclosed.

  This driving assistance display device is provided with a cancel switch for invalidating the switching operation of the display image. For this reason, when the driver performs parking or the like, this switching display can be canceled by using this cancel switch when the user wants to display the rear image even during forward movement and does not want the display to switch to the front image.

JP 2005-193699 A

  When a driver parks, careful driving operation is required with attention to the surrounding environment of the vehicle. However, in the driving support display device described in Patent Document 1, other than the normal driving operation such as the operation of a cancel switch. Since it is necessary to let the driver perform the operation, there is a problem that the driver is bothered and the convenience is low.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a driving assistance device that can provide driving assistance that is more convenient when a driver carefully performs a driving operation while paying attention to the surrounding environment of the vehicle.

  In order to achieve the above object, a driving support device according to the present invention is a driving support device that switches and displays an image according to a surrounding situation of a vehicle and a state of the vehicle, and an object is present around the vehicle. When it is detected, and when the vehicle is not in the first forward running state after the ignition is turned on, a display means for displaying a rear image of the vehicle is provided.

  The driving support device displays a rear image of the vehicle when an object is detected around the vehicle and when the vehicle is not in the first forward traveling state after the ignition is on. Thus, when the vehicle is not in the first forward running state after the ignition is turned on, that is, when the vehicle is not in a state of starting forward from parking, and when an object is detected around the vehicle, the rear image is displayed. It is possible to display the rear image appropriately without the driver performing the operation. As a result, it is possible to provide driving assistance that is more convenient when the driver carefully drives while paying attention to the surrounding environment of the vehicle.

  The display means displays a front image or an omnidirectional image of the vehicle when an object is detected in the vicinity of the vehicle and when the vehicle is in the first forward traveling state after the ignition is on. It is also preferable.

  Thereby, when an object is detected in the vicinity of the vehicle and when the vehicle is in the first forward running state after the ignition is on, a front image or an omnidirectional image of the vehicle is displayed. For this reason, when the vehicle is in the first forward running state after the ignition is turned on, that is, when the vehicle departs forward from parking, and when an object is detected around the vehicle, the front image or the omnidirectional image It is possible to appropriately switch to the front image or the omnidirectional image for display without the driver performing an operation for displaying. As a result, it is possible to provide driving assistance that is more convenient when the driver carefully drives while paying attention to the surrounding environment of the vehicle.

  ADVANTAGE OF THE INVENTION According to this invention, the driving assistance apparatus which can perform the driving assistance with the higher convenience at the time of a driver | operator paying careful attention to the surrounding environment of a vehicle and driving carefully can be provided.

1 is a configuration schematic diagram for explaining an outline of a system configuration of a driving support apparatus of the present invention. It is a flowchart which shows the flow of the switching process of the display screen performed with the driving assistance device of this invention.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In the description of the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted.

(1) Configuration of Driving Support Device First, the configuration of the driving support device according to the present embodiment will be described with reference to FIG. FIG. 1 is a schematic configuration diagram for explaining an outline of a system configuration of the driving support device 100. The driving support device 100 is mounted on a mobile vehicle such as an automobile (hereinafter referred to as the host vehicle), for example, and switches the camera image according to the surrounding situation of the host vehicle and the state of the host vehicle and displays it on the driver (driver). This is a perimeter monitoring system device that supports driving by doing so. In the following description, it is assumed that the host vehicle is an AT vehicle (that is, an automatic transmission vehicle).

  The functions of the driving support device 100 are realized by an ECU that is an electronic control device mounted inside the host vehicle, for example. The ECU is a unit whose main component is a microcomputer including a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like.

  As shown in FIG. 1, the driving support apparatus 100 includes a front camera 1 (front imaging unit), a rear camera 2 (rear imaging unit), a side camera 3 (side imaging unit), and a front wide view image generation unit 4 ( Forward generation means), rear image generation section 5 (rear generation means), omnidirectional image generation section 6 (omnidirectional generation means), vehicle surrounding environment detection section 7 (periphery detection means), vehicle state detection section 8 (state detection means) ), A screen display switch 9 (switching means and display means), and a screen display 10 (display means).

  The front camera 1, the rear camera 2, and the side camera 3 are super wide-angle cameras, for example, fisheye cameras. Each of these three cameras is installed to image the front periphery and front side periphery of the vehicle, to capture the rear periphery and rear side periphery of the vehicle, and to image the left side periphery and right side periphery of the vehicle. Yes.

  The front wide view image generation unit 4 is a conversion processing part that converts and generates an image captured by the front camera 1 into a wide view format (front image) suitable for display on the driver.

  The rear image generation unit 5 is a conversion processing part that generates an image captured by the rear camera 2 by converting it into a format (rear image) suitable for display on the driver.

  The omnidirectional image generation unit 6 is an omnidirectional display format (omnidirectional image) suitable for causing the driver to display images captured by the front camera 1, the rear camera 2, and the side camera 3. This is a conversion processing part that is generated by conversion into ().

  Whether the vehicle surrounding environment detection unit 7 has detected an object (including an obstacle for the own vehicle) in the surrounding environment of the own vehicle using images captured by the front camera 1, the rear camera 2, and the side camera 3. This is an arithmetic processing part for determining whether or not. Data relating to the determination result indicating whether or not the object has been recognized is transmitted to the screen display switching unit 9. This data includes information regarding the distance from the host vehicle to the object when the object is recognized.

  The vehicle state detection unit 8 specifies the position of the shift position of the own vehicle, specifies the display screen by the screen display 10 and measures the display time, specifies the on / off state of the ignition switch of the own vehicle, This is a calculation processing part that detects the situation of the host vehicle, such as specifying the travel direction (for example, forward and backward) and measuring the travel speed of the host vehicle. Data relating to the detection result indicating the state of the host vehicle is transmitted to the screen display switching unit 9.

  The screen display switch 9 uses the data related to the determination result received from the vehicle surrounding environment detection unit 7 and the data related to the detection result received from the vehicle state detection unit 8 to display the display screen by the screen display 10. This is a switch processing part to be switched.

  More specifically, the screen display switching unit 9 has a shift position other than the shift R (reverse), and the display time of the rear image by the screen display 10 is currently within a predetermined time (for example, several seconds). When the vehicle surrounding environment detection unit 7 detects an object around the host vehicle and the host vehicle is not in the first forward running after the ignition is turned on, the screen display 10 The rear image of the host vehicle is displayed on the display screen.

  The screen display switching unit 9 is in a state where the shift position is a position other than the shift R (reverse) and the display time of the rear image by the screen display 10 is currently within a predetermined time (for example, several seconds). And when the object is detected in the vicinity of the host vehicle by the vehicle surrounding environment detection unit 7 and the host vehicle is in the first forward running after the ignition is turned on, the display by the screen display 10 The screen is switched to a front image or an omnidirectional image of the host vehicle and displayed.

  The screen display 10 is a display portion that displays a front image, an omnidirectional image, or a rear image of the host vehicle to the driver in response to an instruction signal from the screen display switch 9.

(2) Flow of Display Screen Switching Process in Driving Support Device Next, a flow of a display screen switching process (driving support method) executed by the driving support device 100 will be described with reference to FIG. FIG. 2 is a flowchart showing a flow of display screen switching processing executed by the driving support device 100. The process shown in the flowchart of FIG. 2 is mainly performed by the above-described ECU, and is repeatedly executed at a predetermined timing from when the driving support device 100 is turned on until it is turned off.

  The imaging by the front camera 1, the rear camera 2, and the side camera 3, and the conversion of the captured image by the front wide view image generation unit 4, the rear image generation unit 5, and the omnidirectional image generation unit 6 are driving. This is performed from time to time when the power of the support apparatus 100 is turned on.

  First, the vehicle state detection unit 8 performs a detection process for specifying the position of the shift position of the host vehicle, and the screen display switching unit 9 uses the data regarding the detection result received from the vehicle state detection unit 8 to use the shift position. It is determined whether or not the shift is R (reverse: reverse) (step S1). When the shift position is the shift R, the screen display 10 displays a rear image of the host vehicle by an instruction signal from the screen display switching unit 9 (step S2).

  On the other hand, when the shift position is not the shift R (for example, in the case of the shift D that is in the forward state or the shift N that is in the neutral state), the process proceeds to step S3 described later.

  In step S 3, the vehicle state detection unit 8 performs a detection process including specifying the display screen by the screen display 10 and measuring the display time, and the detection result received by the screen display switch 9 from the vehicle state detection unit 8. When the rear image is currently displayed, it is determined whether or not it is within a predetermined time (for example, several seconds) after the display of the rear image is started. If the rear image is not displayed at the present time, or if the predetermined time has passed since the display was started even if the rear image was displayed at the current time, the screen display 10 is switched to the screen display switch 9. The front image or the omnidirectional image (omnidirectional monitor image) of the host vehicle is displayed by the instruction signal from (step S4).

  On the other hand, when the rear image is displayed at the present time and within a predetermined time since the display is started, the process proceeds to step S5 described later.

  In step S <b> 5, the vehicle surrounding environment detection unit 7 uses the images captured by the front camera 1, the rear camera 2, and the side camera 3 to use the surroundings within a predetermined distance from the own vehicle (for example, within 1 m ahead of the own vehicle). ) Is determined whether an object is detected. If no object is detected in the vicinity of the host vehicle, the screen display 10 displays a front image or an omnidirectional image (omnidirectional monitor image) of the host vehicle in response to an instruction signal from the screen display switch 9 (step S4). When an object moving around the host vehicle (for example, a moving obstacle) is detected, the screen display 10 displays the front image of the host vehicle or the entire vehicle according to the instruction signal from the screen display switch 9. An azimuth image (omnidirectional monitor image) may be displayed.

  On the other hand, when an object is detected around the host vehicle, the process proceeds to step S6 described later.

  In step S6, the vehicle state detection unit 8 performs a detection process of specifying the current on / off state of the ignition switch of the own vehicle and the current traveling direction of the own vehicle, and the screen display switching unit 9 Then, using the data relating to the detection result received from the vehicle state detection unit 8, it is determined whether or not the first forward travel after the ignition-on state has already been performed. When the first forward travel after the ignition-on state has already occurred, that is, when the first forward travel after the ignition-on state has not been reached, the screen display 10 is switched from the screen display switch 9. A rear image of the host vehicle is displayed by the instruction signal, and a series of processing ends.

  On the other hand, when there is no first forward travel after the ignition-on state at the present time, that is, in the state of the first forward travel after the ignition-on state, the screen display 10 is switched to the screen display switch 9. The front image or the omnidirectional image of the host vehicle is displayed in response to the instruction signal from, and the series of processing ends.

(3) Actions and effects of the driving support device The driving support device 100 is configured so that when an object is detected in the vicinity of the own vehicle and when the own vehicle is not in the first forward running state after the ignition is on, Display the back image. Thus, first, when the host vehicle is not in the first forward travel state after the ignition is turned on, that is, when the vehicle is not in a state of starting forward from parking (for example, after one or more continuous travel cycles from the forward travel state to the reverse travel state). When traveling forward, etc., and when an object is detected around the host vehicle, it is switched when performing parallel parking in a relatively narrow space or when entering a garage in a relatively small parking lot. It is determined by the screen display changer 9 that the operation is in progress.

  After the above determination, the driver can automatically display the rear image (according to the driver's intention) without performing an operation for displaying the rear image required by the driver during the switching. It becomes possible. As a result of automatically displaying the rear image in this way, the driver is made aware of how much space behind the vehicle is left (a sufficient distance to switch back), and the driver pays attention to the surrounding environment of the vehicle. Therefore, it is possible to provide driving assistance with higher convenience when performing a driving operation carefully.

  Further, the driving support device 100 displays a front image or an omnidirectional image of the host vehicle when an object is detected around the host vehicle and when the host vehicle is in the first forward traveling state after the ignition is on. indicate. Thus, first, when the host vehicle is in the first forward running state after the ignition is turned on, that is, when the vehicle departs from the parked front, and when an object is detected around the host vehicle, parking such as parallel parking is performed. It is determined by the screen display changer 9 that the departure is from the inside.

  Then, after the above determination, the driver performs an operation for switching to and displaying the front image or the omnidirectional image required by the driver who does not need to worry about the rear when starting forward from this parking. In addition, it is possible to automatically switch to a front image or an omnidirectional image (according to the driver's intention) and automatically display it. As a result of switching to the front image or the omnidirectional image and automatically displaying it in this way, the driver who wants to start ahead is more convenient when driving carefully while paying attention to the surrounding environment of the vehicle. Will be able to do.

(4) Modification In the above embodiment, the host vehicle has been described as an AT vehicle (that is, an automatic transmission vehicle), but may be an MT vehicle (that is, a manual transmission vehicle). The case where “the shift position is a position other than the shift R” refers to the case of the low gear.

  ADVANTAGE OF THE INVENTION According to this invention, the driving assistance apparatus which can perform the driving assistance with the higher convenience at the time of a driver | operator paying careful attention to the surrounding environment of a vehicle and driving carefully can be provided.

  DESCRIPTION OF SYMBOLS 1 ... Front camera, 2 ... Back camera, 3 ... Side camera, 4 ... Front wide view image generation part, 5 ... Back image generation part, 6 ... Omni-directional image generation part, 7 ... Vehicle surrounding environment detection part, 8 ... Vehicle State detection unit, 9... Screen display switching device, 10... Screen display device, 100.

Claims (2)

A driving support device that switches and displays an image according to the surrounding situation of the vehicle and the state of the vehicle,
Driving assistance comprising display means for displaying a rear image of the vehicle when an object is detected in the vicinity of the vehicle and when the vehicle is not in the first forward running state after the ignition is turned on apparatus.   The display means displays a front image or an omnidirectional image of the vehicle when an object is detected in the vicinity of the vehicle and when the vehicle is in the first forward running state after the ignition is on. The driving support device according to claim 1, wherein

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