US 12,117,305 B2
Navigation system and control method thereof
Junsik Hwang, Suwon-si (KR)
Assigned to Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed by HYUNDAI MOTOR COMPANY, Seoul (KR); and KIA CORPORATION, Seoul (KR)
Filed on Aug. 6, 2021, as Appl. No. 17/396,420.
Claims priority of application No. 10-2020-0146279 (KR), filed on Nov. 4, 2020.
Prior Publication US 2022/0136852 A1, May 5, 2022
Int. Cl. G01C 21/34 (2006.01); G01C 21/36 (2006.01)
CPC G01C 21/3484 (2013.01) [G01C 21/3415 (2013.01); G01C 21/3492 (2013.01); G01C 21/3664 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A navigation system comprising:
an input device that includes a touch screen; and
a controller configured to:
generate a basic route based on a starting point and a destination input received through the input device;
acquire a user-set route received through the input device, the user-set route comprising a route from the starting point to the destination drawn by a user on the touch screen;
generate a modified route based on the basic route, the user-set route and road information by:
extracting at least one road adjacent to the user-set route from the road information;
generating the modified route based on the extracted at least one road; and
when a plurality of roads adjacent to one section of the user-set route exists and a difference between distances from the user-set route to the plurality of roads is less than a predetermined value, selecting a road from the plurality of roads that shortens a length of the modified route; and
cause the modified route to be displayed.