US 11,919,548 B2
Driving assistance device, driving assistance system, driving assistance method, and non-transitory compter-readable recording medium
Ryuji Kasahara, Yokohama (JP); Noriyuki Nakazawa, Yokohama (JP); Hitoshi Sunohara, Yokohama (JP); and Katsuyuki Nagai, Yokohama (JP)
Assigned to JVCKENWOOD Corporation, Yokohama (JP)
Filed by JVCKENWOOD Corporation, Yokohama (JP)
Filed on Aug. 12, 2021, as Appl. No. 17/400,175.
Application 17/400,175 is a continuation of application No. PCT/JP2019/044856, filed on Nov. 15, 2019.
Claims priority of application No. 2019-031571 (JP), filed on Feb. 25, 2019.
Prior Publication US 2021/0370982 A1, Dec. 2, 2021
Int. Cl. B60W 60/00 (2020.01); B60W 50/14 (2020.01); G05D 1/00 (2006.01); G05D 1/02 (2020.01); G08G 1/09 (2006.01); G08G 1/0967 (2006.01)
CPC B60W 60/0055 (2020.02) [B60W 50/14 (2013.01); G05D 1/0061 (2013.01); G05D 1/0276 (2013.01); G05D 1/0287 (2013.01); G08G 1/096791 (2013.01); B60W 2552/05 (2020.02); B60W 2554/4041 (2020.02); B60W 2554/4044 (2020.02); B60W 2556/65 (2020.02)] 7 Claims
OG exemplary drawing
 
1. A driving assistance device that is used in a vehicle capable of switching between autonomous driving and driving that requires operation by a driver, the driving assistance device comprising:
a different vehicle information acquisition unit that acquires autonomous driving information on different vehicles that travel on a traveling road on which the vehicle is going to travel;
an autonomous driving ratio acquisition unit that acquires a ratio of autonomous driving among the different vehicles on the traveling road on which the vehicle is going to travel, from the autonomous driving information on the different vehicles acquired by the different vehicle information acquisition unit; and
a notification control unit that provides information for supporting determination on switching between autonomous driving and driving that requires operation by a driver, in accordance with the ratio of autonomous driving among the different vehicles, wherein
the notification control unit is configured to give a notice of recommendation for switching to the autonomous driving if the ratio of autonomous driving is equal to or larger than a predetermined ratio, and
the predetermined ratio is changed depending on a road type of the traveling road of the vehicle.