Driving assistance apparatus and driving assistance method
It is an object of the present invention to provide a driving assistance apparatus. The driving assistance apparatus according to the present invention includes: a subject vehicle information acquisition unit to acquire subject vehicle information; a non-subject vehicle information acquisition unit to acquire non-subject vehicle information; an object generation unit to generate, based on the subject vehicle information and the non-subject vehicle information, a travel location object indicating at least one of a location where the subject vehicle is currently to travel and a location where the subject vehicle is currently not to travel when the subject vehicle merges or changes lanes from a lane in which the subject vehicle travels to a lane in which the non-subject vehicle travels; and a display controller to perform control to display, in accordance with travel of the subject vehicle, the travel location object superimposed on scenery around the subject vehicle.
1. A driving assistance apparatus comprising:
a processor to execute a program; and
a non-transitory memory to store the program which, when executed by the processor, performs processes of:
acquiring subject vehicle information including a current location and a speed of a subject vehicle;
acquiring, from an in-vehicle device, non-subject vehicle information including a current location and a speed of a non-subject vehicle relative to the subject vehicle;
generating, based on the acquired subject vehicle information and the acquired non-subject vehicle information, a travel location object indicating a location where the subject vehicle is currently to travel and a location where the subject vehicle is currently not to travel when the subject vehicle merges or changes lanes from a lane in which the subject vehicle travels to a lane in which the non-subject vehicle travels; and
controlling a display such that the generated travel location object is superimposed on scenery around the subject vehicle such that the location where the subject vehicle is currently to travel and the location where the subject vehicle is currently not to travel as shown in accordance with travel of the subject vehicle.
2. The driving assistance apparatus according to claim 1 , wherein the controlling process comprises controlling the display such that the travel location object is superimposed on a line marking forming the lane in which the subject vehicle travels.
3. The driving assistance apparatus according to claim 1 , wherein the controlling process comprises controlling the display such that the travel location object is superimposed on the lane in which the subject vehicle travels.
4. The driving assistance apparatus according to claim 1 , wherein the generating process comprises generating the travel location object responsive to an extent to which the subject vehicle is capable of merging or changing lanes.
5. The driving assistance apparatus according to claim 4 , wherein the controlling process comprises controlling the display such that the travel location object is superimposed on a line marking located in a direction of merging or changing lanes from among line markings constituting the lane in which the subject vehicle travels.
6. The driving assistance apparatus according to claim 4 , wherein the controlling process comprises controlling the display such that the travel location object is superimposed or not superimposed responsive to a predetermined event.
7. The driving assistance apparatus according to claim 1 , wherein the generating process comprises generating an acceleration and deceleration object indicating that the subject vehicle currently needs to be accelerated or decelerated using characters or a symbol.
8. The driving assistance apparatus according to claim 1 , wherein
the travel location object indicates a path from the current location of the subject vehicle to a point where the subject vehicle is capable of merging or changing lanes, and
the generating process comprises generating an object indicating an imaginary subject vehicle being the subject vehicle that is imaginary and located at the point.
9. The driving assistance apparatus according to claim 8 , wherein the generating process comprises generating an object indicating that the imaginary subject vehicle and an imaginary non-subject vehicle being the non-subject vehicle that is imaginary are in contact with each other at the point.
10. The driving assistance apparatus according to claim 1 , wherein when there are a plurality of points where the subject vehicle is capable of merging or changing lanes, the travel location object indicates a path from the current location of the subject vehicle to each of the points.
11. The driving assistance apparatus according to claim 10 , wherein the controlling process comprises controlling the display such that the object is not superimposed when the lane to which the subject vehicle merges or changes lanes is congested, and controlling the display such that the object is superimposed when the lane to which the subject vehicle merges or changes lanes is not congested.
12. The driving assistance apparatus according to claim 1 , wherein the controlling process comprises controlling the display such that the travel location object is superimposed on a lane which is behind the subject vehicle and in which the subject vehicle travels.
13. The driving assistance apparatus according to claim 1 , wherein the superimposed travel location object graphically distinguishes the location where the subject vehicle is currently to travel from the location where the subject vehicle is currently not to travel thereby guiding a driver of the subject vehicle to accelerate the subject vehicle when needed.
14. The driving assistance apparatus according to claim 1 , wherein the travel location object is generated when the subject vehicle merges or changes lanes from the lane in which the subject vehicle travels to the lane in which the non-subject vehicle travels without changing a travel speed.
15. The driving assistance apparatus according to claim 1 , wherein the in-vehicle device is an image capturing device.
16. A driving assistance method comprising:
acquiring subject vehicle information including a current location and a speed of a subject vehicle;
acquiring, from an in-vehicle device, non-subject vehicle information including a current location and a speed of a non-subject vehicle relative to the subject vehicle;
generating, based on the acquired subject vehicle information and the acquired non-subject vehicle information, a travel location object indicating a location where the subject vehicle is currently to travel and a location where the subject vehicle is currently not to travel when the subject vehicle merges or changes lanes from a lane in which the subject vehicle travels to a lane in which the non-subject vehicle travels; and
controlling a display such that the generated travel location object is superimposed on scenery around the subject vehicle such that the location where the subject vehicle is currently to travel and the location where the subject vehicle is currently not to travel as in accordance with travel of the subject vehicle.
17. The driving assistance method according to claim 16 , wherein the superimposed travel location object graphically distinguishes the location where the subject vehicle is currently to travel from the location where the subject vehicle is currently not to travel thereby guiding a driver of the subject vehicle to accelerate the subject vehicle when needed.
18. The driving assistance method according to claim 16 , wherein the travel location object is generated when the subject vehicle merges or changes lanes from the lane in which the subject vehicle travels to the lane in which the non-subject vehicle travels without changing a travel speed.
19. The driving assistance method according to claim 16 , wherein the in-vehicle device is an image capturing device.