US 11,989,306 B2
Vehicle security network device and method for controlling same
Dong Kyue Kim, Seoul (KR); and Byong Deok Choi, Seoul (KR)
Assigned to IUCF-HYU (Industry-University Cooperation Foundation Hanyang University), Seoul (KR); and ICTK Holdings Co., Ltd., Seongnam-si (KR)
Filed by IUCF-HYU (Industry-University Cooperation Foundation Hanyang University), Seoul (KR); and ICTK Holdings Co., Ltd., Seongnam-si (KR)
Filed on Sep. 25, 2020, as Appl. No. 17/033,179.
Application 17/033,179 is a division of application No. 16/071,002, granted, now 10,824,735, issued on Nov. 3, 2020, previously published as PCT/KR2017/000652, filed on Jan. 19, 2017.
Claims priority of application No. 10-2016-0006534 (KR), filed on Jan. 19, 2016.
Prior Publication US 2021/0012015 A1, Jan. 14, 2021
Int. Cl. G06F 21/57 (2013.01); B60R 25/10 (2013.01); G01M 17/00 (2006.01); G01M 17/007 (2006.01); G07C 5/00 (2006.01); G07C 5/02 (2006.01); G07C 5/08 (2006.01); G08B 21/18 (2006.01); H04L 9/40 (2022.01); H04W 4/44 (2018.01)
CPC G06F 21/577 (2013.01) [B60R 25/10 (2013.01); G01M 17/007 (2013.01); G07C 5/008 (2013.01); G07C 5/02 (2013.01); G07C 5/08 (2013.01); G08B 21/18 (2013.01); H04L 63/1433 (2013.01); H04W 4/44 (2018.02); H04L 2209/84 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A method of managing an intra-vehicle network (IVN) of a vehicle based on a device's controllability of a functional element from a plurality of functional elements connected using the IVN in the vehicle, comprising:
calculating an edge weight matrix indicating a connection state of the plurality of functional elements in the vehicle based on a difference in automobile safety integrity level (ASIL) and a connection structure between the plurality of functional elements;
calculating a transitive closure matrix indicating a sum of weights of at least one edge included in a path between two random vertices using the edge weight matrix; and
calculating the device's controllability of the functional element corresponding to a first vertex based on the ASIL of each of at least one vertex having a path connected from the first vertex,
managing the IVN of the vehicle based on the respective calculated device's controllability;
wherein the calculating of the device's controllability comprises calculating a difference in the ASIL between the first vertex and a second vertex as the device's controllability of the functional element corresponding to the first vertex, the second vertex among at least one vertex having a path connected from the first vertex,
wherein the second vertex is a vertex which maximizes the difference in the ASIL from the first vertex, and
wherein the device's controllability for a negative number is considered ‘0’.