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Safe driving assistance device for vehicle

A technology for safe driving and auxiliary devices, which is applied to traffic control systems, control devices, instruments and other directions of road vehicles, and can solve problems such as collision, low measurement accuracy, and misjudgment of the possibility of collision.

Pending Publication Date: 2022-04-29
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the accuracy of the vehicle's position (longitude, latitude, and altitude) estimated based on positioning information obtained by GNSS is not high enough
In addition, when the measurement accuracy of the longitude and latitude of the vehicle is low, it is possible to misjudge the possibility of the own vehicle colliding with another vehicle
In addition, when the measurement accuracy of the altitude of the vehicle is low, for example, even in situations where collision is impossible such as when the own vehicle and other vehicles are driving on an overpass, or when driving on an elevated road and its side road, etc., sometimes the It will be misjudged that there is a possibility of collision
As a result, situations where unnecessary alerts may be generated

Method used

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  • Safe driving assistance device for vehicle
  • Safe driving assistance device for vehicle
  • Safe driving assistance device for vehicle

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach ＞

[0065] Such as figure 1 As shown, the assistance device 100 has a driving assistance ECU 101 , a GNSS device 102 , a front camera 103 , an image processing ECU 104 , a display device 105 , a voice output device 106 and a wireless communication device 107 . The driving assistance ECU 101 and the image processing ECU 104 each have a computer including a CPU, ROM, and RAM, and are connected to each other via a CAN (Controller Area Network) so as to be able to transmit and receive signals. The CPUs of the driving assistance ECU 101 and the image processing ECU 104 are configured to realize various functions by reading and executing instructions (programs, routines) stored in the ROM. The driving assistance ECU 101 and the image processing ECU 104 may be integrated into one ECU, or may be composed of three or more ECUs.

[0066] The driving assistance ECU 101 is a control device serving as a center for performing driving assistance for the driver, and executes collision avoidance ...

no. 2 approach ＞

[0113] The assistance device 100 according to the second embodiment determines whether there is "another vehicle approaching the own vehicle (that is, an oncoming vehicle)" traveling on the same road as the own vehicle in a direction opposite to the traveling direction of the own vehicle. , when there is such another vehicle, it is determined that the specific condition is satisfied, and the notification control is executed. In addition, since the configuration of the auxiliary device 100 according to the second embodiment may be the same as that of the auxiliary device 100 according to the first embodiment, description thereof will be omitted.

[0114] That is, the assisting device 100 according to the second embodiment determines that the specific condition is satisfied when all of the following conditions (2a) to (2e) are satisfied, and executes the notification control. For convenience of description, this specific condition related to the second embodiment is also referre...

no. 3 approach ＞

[0142] The assistance device 100 according to the third embodiment determines whether or not there is another vehicle approaching at the same intersection as the intersection the own vehicle is approaching, and if there is such another vehicle, determines that "the own vehicle and the other vehicle Certain conditions under which a collision is possible" holds.

[0143] That is, the assisting device 100 according to the third embodiment determines that the specific condition is satisfied when all of the following conditions (3a) and (3b) are satisfied, and executes the notification control. For convenience of description, this specific condition related to the third embodiment is also referred to as a third specific condition.

[0144] (3a) The self-vehicle detection mark is a road mark on which the name of the intersection is described, and the other vehicle detection mark is a road mark on which the name of the intersection is described.

[0145] (3b) The name of the interse...

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Abstract

Provided is a safe driving assistance device for a vehicle, which is capable of improving the accuracy of determining the possibility of a collision between the own vehicle and another vehicle while suppressing an increase in cost. A safe driving assistance device (100) is provided with: an image processing ECU (104) that determines whether or not a specific object is present in front of a host vehicle (10) on the basis of an image obtained by capturing a scene in front of the host vehicle (10); a wireless communication device (107) that acquires information relating to a road sign recognized by another vehicle from the other vehicle by means of vehicle-to-vehicle communication; and a driving assistance ECU that determines whether or not a specific condition indicating that the own vehicle is likely to collide with the other vehicle is satisfied on the basis of the information pertaining to the road sign detected by the own vehicle 10 and the information pertaining to the road sign detected by the other vehicle, and that, if it is determined that the specific condition is satisfied, drives the other vehicle to perform driving assistance. A notification control for notifying a driver of the own vehicle that the own vehicle is likely to collide with another vehicle is performed.

Description

technical field [0001] The invention relates to a safety driving assisting device for a vehicle. Background technique [0002] Patent Document 1 discloses a safe driving support device for a vehicle, which is configured to acquire positioning information of other vehicles based on radio waves from GNSS positioning satellites (that is, positions of other vehicles) through inter-vehicle communication, and The obtained positioning information is used to determine the possibility of collision between the own vehicle and other vehicles. However, the accuracy of the position (longitude, latitude, and altitude) of the vehicle estimated based on the positioning information obtained by GNSS is not high enough. In addition, when the measurement accuracy of the longitude and latitude of the vehicle is low, there is a possibility that the possibility of collision between the own vehicle and another vehicle may be misjudged. In addition, when the measurement accuracy of the altitude of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/095B60W40/02B60W40/00B60W50/14
CPCB60W30/095B60W30/0953B60W40/02B60W40/00B60W50/14B60W2050/143B60W2050/146G06V20/582G08G1/09623G08G1/163G08G1/096791G08G1/096758G08G1/096716
Inventor 加藤光晴
Owner TOYOTA JIDOSHA KK
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