US 12,304,321 B2
Control apparatus and control method of an electric vehicle
Taewoo Lee, Suwon-Si (KR); Jeong Won Song, Hwaseong-Si (KR); Woocheol Cho, Hwaseong-Si (KR); Joonhee Lee, Yongin-Si (KR); Kyunghan Min, Incheon (KR); Sung Keun Lim, Hwaseong-Si (KR); JunSeok Park, Seoul (KR); Jong Chan Lee, Hanam-Si (KR); and Heon Kang, Hwaseong-Si (KR)
Assigned to Hyundai Motor Company, Seoul (KR); Kia Corporation, Seoul (KR); and HYUNDAI WIA CORPORATION, Changwon-si (KR)
Filed by Hyundai Motor Company, Seoul (KR); Kia Corporation, Seoul (KR); and HYUNDAI WIA CORPORATION, Changwon-si (KR)
Filed on May 22, 2023, as Appl. No. 18/200,343.
Claims priority of application No. 10-2022-0102608 (KR), filed on Aug. 17, 2022.
Prior Publication US 2024/0059157 A1, Feb. 22, 2024
Int. Cl. B60L 15/20 (2006.01); B60L 7/18 (2006.01)
CPC B60L 15/2036 (2013.01) [B60L 7/18 (2013.01); B60L 15/2009 (2013.01); B60L 2240/12 (2013.01); B60L 2240/24 (2013.01); B60L 2240/507 (2013.01); B60L 2250/26 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A control apparatus of a vehicle, the control apparatus comprising:
a twin clutch including a first clutch and a second clutch and configured to adjust power transmission from a drive motor to a first rear wheel and a second rear wheel of the vehicle through the first clutch corresponding to the first rear wheel and the second clutch corresponding to the second rear wheel;
a vehicle controller electrically connected to the drive motor and configured to, when an entering condition for entering an oversteer mode is satisfied, determine an initial regenerative braking torque for entering the oversteer mode, determine a target slip ratio of the first and second rear wheels, and control the regenerative braking torque of the drive motor to follow the target slip ratio; and
a clutch controller electrically connected to the twin clutch and configured to adjust clutch torques of the first clutch and the second clutch of the twin clutch so that slip ratios of the first and second rear wheels are synchronized.
 
10. A control method of a vehicle, the control method comprising:
determining, by a controller, whether an entering condition for entering an oversteer mode is satisfied;
determining, by the controller, a target slip ratio of a rear wheel including first and second rear wheels when the entering condition is satisfied;
applying, by the controller, an initial regenerative braking torque to the rear wheel through a drive motor;
controlling, by the controller, the regenerative braking torque of the drive motor to follow the target slip ratio; and
adjusting, by the controller, a clutch torque of a twin clutch including a first clutch corresponding to the first rear wheel and a second clutch corresponding to the second rear wheel so that slip ratios of the first and second rear wheels are synchronized.