US 11,658,506 B2
Hybrid vehicle and control method thereof
Chun Hyuk Lee, Gyeonggi-do (KR); Seong Ik Park, Seoul (KR); Gwangil Du, Incheon (KR); Hoon Han, Gyeonggi-do (KR); Kwonchae Chung, Seoul (KR); Jae Young Choi, Seoul (KR); and Hyukjin Lee, Gyeonggi-do (KR)
Assigned to Hyundai Motor Company, Seoul (KR); and Kia Motors Corporation, Seoul (KR)
Filed by Hyundai Motor Company, Seoul (KR); and Kia Motors Corporation, Seoul (KR)
Filed on Sep. 29, 2020, as Appl. No. 17/37,182.
Claims priority of application No. 10-2020-0028246 (KR), filed on Mar. 6, 2020.
Prior Publication US 2021/0281101 A1, Sep. 9, 2021
Int. Cl. H02J 7/14 (2006.01); B60W 20/13 (2016.01); H02J 7/00 (2006.01); B60W 20/15 (2016.01)
CPC H02J 7/1446 (2013.01) [B60W 20/13 (2016.01); B60W 20/15 (2016.01); H02J 7/0048 (2020.01)] 18 Claims
OG exemplary drawing
 
1. A hybrid vehicle using an engine and a motor as a power source, comprising:
an input configured to receive user selection for terrain mode;
a hybrid starter generator (HSG) connected to the engine and configured to operate as a start motor to turn on the engine, and operate as a generator that performs idle charging when the engine is turned on;
a battery electrically connected to the HSG;
a controller configured to perform idle charging when a state of charge (SOC) of the battery is less than or equal to a first SOC using the HSG by turning on the engine; and
a vehicle speed detector configured to detect and deliver a vehicle speed to the controller,
wherein the controller is configured to adjust the SOC of the battery to perform the idle charging based on a second SOC greater than the first SOC when the controller enters the terrain mode; and
wherein the controller is configured to enter an EV driving mode by driving the motor until a first vehicle speed is reached in a stop state of the hybrid vehicle, and enter an HEV driving mode from the stop state when entering the terrain mode.