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US-12623681-B2 - Driving assistance device, method, and computer- readable non-volatile storage medium

US12623681B2US 12623681 B2US12623681 B2US 12623681B2US-12623681-B2

Abstract

A driving assistance device, which is to be mounted on a vehicle capable of communicating with another vehicle, comprises a calculation unit configured to calculate a travel route of the another vehicle based on a communication result with the another vehicle, an arithmetic processing unit configured to determine whether the self-vehicle will interfere with the another vehicle traveling on the travel route calculated, and to generate a notification signal for giving a notification that the self-vehicle will interfere with the another vehicle, upon determination that the self-vehicle will interfere with the another vehicle, and an identification unit configured to identify a state of a shift range of the self-vehicle, wherein in a case where the shift range identified by the identification unit suppresses a movement of the self-vehicle, the arithmetic processing unit is deactivated.

Inventors

  • Taku Yamazaki

Assignees

  • HONDA MOTOR CO., LTD.

Dates

Publication Date
20260512
Application Date
20240920
Priority Date
20230929

Claims (12)

  1. 1 . A driving assistance device to be mounted on a vehicle capable of communicating with another vehicle, the driving assistance device comprising: a calculation unit configured to calculate a travel route of the another vehicle, based on a communication result with the another vehicle; an arithmetic processing unit configured to determine whether the self-vehicle will interfere with the another vehicle traveling on the travel route calculated, and to generate a notification signal for giving a notification that the self-vehicle will interfere with the another vehicle, upon determination that the self-vehicle will interfere with the another vehicle; and an identification unit configured to identify a state of a shift range of the self-vehicle, wherein in a case where the shift range identified by the identification unit suppresses a movement of the self-vehicle, the arithmetic processing unit is deactivated.
  2. 2 . The driving assistance device according to claim 1 , wherein in a case where the shift range identified by the identification unit suppresses the movement of the self-vehicle, the arithmetic processing unit suppresses generation of the notification signal based on the determination.
  3. 3 . The driving assistance device according to claim 2 , wherein the arithmetic processing unit generates the notification signal based on the determination, based on a traveling state of the self-vehicle after a shift range of the self-vehicle is changed from a shift range that suppresses the movement of the self-vehicle to a shift range that permits the movement of the self-vehicle.
  4. 4 . The driving assistance device according to claim 3 , wherein the shift range that permits the movement includes a D range and an R range.
  5. 5 . The driving assistance device according to claim 3 , wherein the traveling state of the self-vehicle includes a vehicle speed of the self-vehicle, and in a case where the vehicle speed of the self-vehicle is equal to or higher than a reference, the arithmetic processing unit generates the notification signal based on the determination.
  6. 6 . The driving assistance device according to claim 3 , wherein the traveling state of the self-vehicle includes an accelerator opening degree of the self-vehicle, and in a case where the accelerator opening degree of the self-vehicle is equal to or larger than a reference, the arithmetic processing unit generates the notification signal based on the determination.
  7. 7 . The driving assistance device according to claim 3 , wherein in a case where a position of an intersection identified beforehand is present within a range of a predetermined distance from the self-vehicle, the arithmetic processing unit generates the notification signal based on the determination, regardless of the shift range identified by the identification unit.
  8. 8 . The driving assistance device according to claim 3 , wherein in a case where the shift range of the self-vehicle is changed from the shift range that suppresses the movement of the self-vehicle to the shift range that permits the movement of the self-vehicle, the arithmetic processing unit generates the notification signal based on the determination, and in a case where an oncoming vehicle is present as the another vehicle on a forward side of the self-vehicle, the arithmetic processing unit generates the notification signal based on the determination, based on the traveling state of the self-vehicle.
  9. 9 . The driving assistance device according to claim 3 , wherein the calculation unit further calculates a travel route of the self-vehicle, based on the shift range identified by the identification unit, and the arithmetic processing unit generates the notification signal based on the determination, based on the travel route of the self-vehicle and the travel route of the another vehicle.
  10. 10 . The driving assistance device according to claim 1 , wherein in a case where the shift range identified by the identification unit is an R range, the arithmetic processing unit generates the notification signal based on the determination.
  11. 11 . A method of driving assistance for a vehicle capable of communicating with another vehicle, the method comprising: a step of calculating a travel route of the another vehicle, based on a communication result with the another vehicle; a step of determining whether the self-vehicle will interfere with the another vehicle traveling on the travel route calculated, and generating a notification signal for giving a notification that the self-vehicle will interfere with the another vehicle, upon determination that the self-vehicle will interfere with the another vehicle; and a step of identifying a state of a shift range of the self-vehicle, wherein in a case where the shift range identified suppresses a movement of the self-vehicle, the step of determining is performed, and the step of generating the notification signal is deactivated.
  12. 12 . A computer-readable non-volatile storage medium storing a program for causing a computer to be capable of reading a program that performs driving assistance for a vehicle capable of communicating with another vehicle, the program causing the computer to: calculate a travel route of the another vehicle, based on a communication result with the another vehicle; determine whether the self-vehicle will interfere with the another vehicle traveling on the travel route calculated, and generate a notification signal for giving a notification that the self-vehicle will interfere with the another vehicle, upon determination that the self-vehicle will interfere with the another vehicle; and identify a state of a shift range of the self-vehicle, wherein in a case where the shift range identified suppresses a movement of the self-vehicle, determining is performed and generating the notification signal is deactivated.

Description

CROSS-REFERENCE TO RELATED APPLICATION(S) This application claims priority to and the benefit of Japanese Patent Application No. 2023-170826, filed Sep. 29, 2023, the entire disclosure of which is incorporated herein by reference. BACKGROUND OF THE INVENTION Field of the Invention The present invention mainly relates to a driving assistance device to be mounted on a vehicle. Description of the Related Art These days, efforts are actively made to provide access to a sustainable transportation system that also gives consideration to people in vulnerable situations among traffic participants. In order to achieve such a transportation system, research and development of preventive safety technology are widely proceeded to further improve traffic safety and convenience. Some vehicles perform vehicle-to-vehicle communication of communicating with other vehicles, and thus enable driving assistance (see Japanese Patent Laid-Open No. 2022-61482), and in general, there may be a demand for further improving the preventive safety technology that can be utilized for the driving assistance. SUMMARY OF THE INVENTION The present invention provides a technique advantageous for further improving preventive safety technology that can be utilized for driving assistance. One of the aspects of the present invention provides a driving assistance device to be mounted on a vehicle capable of communicating with another vehicle, the driving assistance device comprising: a calculation unit configured to calculate a travel route of the another vehicle, based on a communication result with the another vehicle; an arithmetic processing unit configured to determine whether the self-vehicle will interfere with the another vehicle traveling on the travel route calculated, and to generate a notification signal for giving a notification that the self-vehicle will interfere with the another vehicle, upon determination that the self-vehicle will interfere with the another vehicle; and an identification unit configured to identify a state of a shift range of the self-vehicle, wherein in a case where the shift range identified by the identification unit suppresses a movement of the self-vehicle, the arithmetic processing unit is deactivated. Further features of the present invention will become apparent from the following description of exemplary embodiments (with reference to the attached drawings). BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram illustrating a system configuration example of a vehicle according to an embodiment; FIG. 2A is a diagram for describing driving assistance in one mode; FIG. 2B is a diagram for describing the driving assistance in one mode; FIG. 3A is a diagram for describing the driving assistance in one mode; FIG. 3B is a diagram for describing the driving assistance in one mode; FIG. 4 is a diagram illustrating a typical example of a shift range of a vehicle; FIG. 5 is a diagram for describing the driving assistance in one mode; and FIG. 6 is a flowchart illustrating control contents of a driving assistance device. DESCRIPTION OF THE EMBODIMENTS Hereinafter, embodiments will be described in detail with reference to the attached drawings. Note, the following embodiments are not intended to limit the scope of the claimed invention. Multiple features are described in the embodiments, but limitation is not made to an invention that requires all such features, and multiple such features may be combined as appropriate. Furthermore, in the attached drawings, the same reference numerals are given to the same or similar configurations, and redundant description thereof is omitted. (System Configuration Example of Vehicle) FIG. 1 illustrates a vehicle 1 according to an embodiment. The vehicle 1 is a four-wheeled vehicle including two front wheels and two rear wheels as wheels 11, but the number of the wheels 11 is not limited to this example, and may be, for example, a two-wheeled vehicle or a three-wheeled vehicle. In addition, the vehicle 1 is a boarding type of vehicle in the present embodiment, but may be a straddle type vehicle in another embodiment. In the present embodiment, the vehicle 1 further includes a driving operation device 12, a position detection device 13, a communication device 14, a notification device 15, and a driving assistance device 16. The driving operation device 12 includes an acceleration operation element 12a, a brake operation element 12b, a steering operation element 12c, and a shift operation element 12d, each of which is disposed in the vicinity of the driver's seat to be accessible by the driver. The acceleration operation element 12a is configured to be capable of receiving, from the driver, an operation input for accelerating or keeping the travel of the vehicle 1, and an accelerator pedal can be used as its typical example. The brake operation element 12b is configured to be capable of receiving, from the driver, an operation input for decelerating or stopping the vehicle 1, and a b