US 12,466,384 B2
Hybrid electric vehicle and method of controlling state of charge for the same
Hee Jung Yoon, Goyang-si (KR); Jee Wook Huh, Goyang-si (KR); Se Jun Park, Suwon-si (KR); Jong Hyuck Kim, Hwaseong-si (KR); and Seung Han Lee, Uiwang-si (KR)
Assigned to HYUNDAI MOTOR COMPANY, Seoul (KR); and KIA CORPORATION, Seoul (KR)
Filed by Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed on Apr. 14, 2022, as Appl. No. 17/720,697.
Claims priority of application No. 10-2021-0079906 (KR), filed on Jun. 21, 2021.
Prior Publication US 2022/0402478 A1, Dec. 22, 2022
Int. Cl. B60W 20/13 (2016.01); B60L 50/60 (2019.01); B60L 53/65 (2019.01); B60L 53/66 (2019.01); B60L 58/12 (2019.01); G01C 21/34 (2006.01)
CPC B60W 20/13 (2016.01) [B60L 50/60 (2019.02); B60L 53/65 (2019.02); B60L 53/66 (2019.02); B60L 58/12 (2019.02); G01C 21/3469 (2013.01); B60W 2510/242 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method of controlling a state of charge of a vehicle, the method comprising:
receiving input of use information for driving an external device by power of a battery for driving an electric motor;
determining expected power consumption of the external device based on the use information;
determining a target state of charge based on the expected power consumption; and
controlling a driving mode based on the target state of charge,
wherein:
receiving the input of the use information includes receiving selection of any one of a plurality of preset simplified load classifications, each indicating a level of power consumption of the external device,
the plurality of preset simplified load classifications based on power consumption comprise high step, medium step and low step,
each step includes selection information for guiding the selection,
the selection information is output for each step together as an example for each step,
determining the expected power consumption comprises selecting at least one of the high step, the medium step, the low step,
the determining the target state of charge includes:
converting the expected power consumption into a state of charge value; and
adding the converted state of charge value to a reference state of charge value to determine the target state of charge, and
the reference state of charge value corresponds to a default value among switch criteria between a first driving mode, in which a state of charge of the battery is depleted, and a second driving mode, in which the state of charge is maintained,
wherein the plurality of preset simplified load classifications comprises:
the high step corresponding to use of a high-load device for two or more nights;
the medium step corresponding to use of the high-load device for one night or less, or use of a low-load device for less than three nights; and
the low step corresponding to use of the low-load device for one night or less, and
wherein the preset simplified load classifications are based on both expected power consumption and expected duration of external device use.