US 12,338,883 B2
Drift driving control method and system of electronic limited slip differential
Hyeok Hun Song, Gyeonggi-do (KR)
Assigned to HYUNDAI WIA CORPORATION, Gyeongsangnam-Do (KR)
Filed by HYUNDAI WIA CORPORATION, Gyeongsangnam-do (KR)
Filed on Dec. 12, 2022, as Appl. No. 18/079,540.
Claims priority of application No. 10-2021-0179623 (KR), filed on Dec. 15, 2021.
Prior Publication US 2023/0182567 A1, Jun. 15, 2023
Int. Cl. F16H 48/36 (2012.01); B60K 23/04 (2006.01); F16H 48/20 (2012.01)
CPC F16H 48/36 (2013.01) [B60K 2023/043 (2013.01); F16H 2048/205 (2013.01); F16H 2048/207 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A drift driving control method of an electronic limited slip differential, the method comprising:
determining, by a controller, whether or not drift mode conditions are met on the basis of a driver's vehicle operating state or an output value reflecting a driving state of a vehicle; and
when the drift mode conditions are met, controlling, by the controller, drift driving to be performed by causing the vehicle to be oversteered by increasing driving force of a turning outer wheel using the electronic limited slip differential and then maintaining simultaneous slipping of right and left wheels, one of which corresponds to the turning outer wheel,
wherein a drift mode is categorized as a drift entrance mode and a drift maintaining mode,
wherein drift entrance torque for causing the oversteering in the vehicle is applied by means of the electronic limited slip differential in the drift entrance mode, and
drift maintaining torque for maintaining simultaneous slipping of the right and left wheels is applied by means of the electronic limited slip differential in the drift maintaining mode, and
wherein the drift entrance torque and the drift maintaining torque are applied by limiting gradients thereof.