US 12,296,823 B2
Driving support method, and driving support device
Wasantha Oshita, Fujisawa (JP); Masaichi Takahashi, Fujisawa (JP); and Shinichiro Fukazawa, Fujisawa (JP)
Assigned to Isuzu Motors Limited, Yokohama (JP)
Appl. No. 17/801,538
Filed by Isuzu Motors Limited, Tokyo (JP)
PCT Filed Feb. 26, 2021, PCT No. PCT/JP2021/007386
§ 371(c)(1), (2) Date Aug. 23, 2022,
PCT Pub. No. WO2021/172518, PCT Pub. Date Sep. 2, 2021.
Claims priority of application No. 2020-033738 (JP), filed on Feb. 28, 2020.
Prior Publication US 2023/0294694 A1, Sep. 21, 2023
Int. Cl. B60W 30/16 (2020.01)
CPC B60W 30/16 (2013.01) [B60W 2520/105 (2013.01); B60W 2552/00 (2020.02); B60W 2554/4041 (2020.02); B60W 2554/802 (2020.02); B60W 2554/804 (2020.02); B60W 2720/106 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A driving assistance method of assisting driving of a car, the driving assistance method comprising:
a leading-car determination step of determining whether there is a leading car to be followed by own car;
a lane-width detection step of detecting a lane width for the own car that is traveling; and
a target-control-value output step of outputting a target acceleration/deceleration speed or a target acceleration speed of the own car for performing automatic traveling, wherein the target-control-value output step includes:
outputting, when a determination result indicating that there is a leading car to be followed is obtained leading-car determination step, the target acceleration/deceleration speed for causing the own car to follow the leading car on a basis of a relative speed and an inter-car distance between the own car and the leading car; and
outputting, when a determination result indicating that there are not leading cars to be followed is obtained in the leading-car determination step and a speed of the own car is smaller than a set speed, the target acceleration speed for causing the speed of the own car to be a set certain speed and correcting the target acceleration speed to be output based on a ratio between the lane width obtained in the lane-width detection step and a car width of the own car.