US 12,187,360 B2
Steering control device and steering control method
Tae Sik Kim, Gyeonggi-do (KR)
Assigned to HL MANDO CORPORATION, Gyeonggi-Do (KR)
Appl. No. 17/429,619
Filed by HL MANDO CORPORATION, Gyeonggi-do (KR)
PCT Filed Jan. 21, 2020, PCT No. PCT/KR2020/001002
§ 371(c)(1), (2) Date Aug. 9, 2021,
PCT Pub. No. WO2020/166839, PCT Pub. Date Aug. 20, 2020.
Claims priority of application No. 10-2019-0016338 (KR), filed on Feb. 12, 2019.
Prior Publication US 2022/0135119 A1, May 5, 2022
Int. Cl. B62D 5/04 (2006.01)
CPC B62D 5/0463 (2013.01) [B62D 5/0487 (2013.01); B62D 5/0496 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A steering control device, comprising:
a command current calculation unit calculating a first command current based on detected steering information for a steering wheel;
a resistance calculation unit calculating an internal resistance based on a detected internal temperature;
a supply current estimation unit estimating a supply current of a battery based on the internal resistance, the first command current, and an input supply voltage of the battery; and
a command current application unit comparing the supply current with a preset reference current, changing the first command current to a second command current if the supply current is greater than the reference current, and applying the second command current to a steering motor.