US 12,225,101 B2
Signal correction apparatus and method of steer-by-wire system
Young Hwan Do, Yongin-si (KR); and Woo Hyung Kim, Yongin-si (KR)
Assigned to HYUNDAI MOBIS CO., LTD., Seoul (KR)
Filed by HYUNDAI MOBIS CO., LTD., Seoul (KR)
Filed on Nov. 24, 2021, as Appl. No. 17/535,548.
Claims priority of application No. 10-2021-0076148 (KR), filed on Jun. 11, 2021.
Prior Publication US 2023/0011762 A1, Jan. 12, 2023
Int. Cl. H04L 7/00 (2006.01); B62D 5/00 (2006.01); B62D 5/04 (2006.01); B62D 15/02 (2006.01); H04L 67/12 (2022.01)
CPC H04L 7/0041 (2013.01) [B62D 5/006 (2013.01); B62D 5/0424 (2013.01); B62D 5/0463 (2013.01); B62D 5/0481 (2013.01); B62D 15/025 (2013.01); H04L 67/12 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A signal correction apparatus of an SBW (Steer-By-Wire) system, comprising:
a command signal transceiver configured to receive a command signal transmitted through a vehicle communication network by an upper level apparatus, and transmit a command signal, obtained by correcting the linearity of the received command signal, to a lower level apparatus through the vehicle communication network;
a buffer configured to store the command signal, received through the command signal transceiver, as an original signal; and
a control circuit configured to generate a corrected command signal whose linearity is corrected by correcting a linearity of the original signal using the original signal and a delayed command signal obtained by delaying the original signal by a designated one unit time.