US 11,927,253 B2
Powertrain for electric vehicle
Jin Ho Kim, Suwon-si (KR); Jae Joon Lee, Anyang-si (KR); Jong Sool Park, Hwaseong-si (KR); Jin Young Hwang, Yongin-si (KR); and Jong Sung Kim, Incheon (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 Nov. 19, 2021, as Appl. No. 17/531,475.
Application 17/531,475 is a continuation in part of application No. 16/887,267, filed on May 29, 2020, granted, now 11,181,174.
Claims priority of application No. 10-2019-0141771 (KR), filed on Nov. 7, 2019; and application No. 10-2020-0025247 (KR), filed on Feb. 28, 2020.
Prior Publication US 2022/0074474 A1, Mar. 10, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. F16H 37/06 (2006.01); B60K 1/02 (2006.01); B60K 17/02 (2006.01); B60K 17/22 (2006.01); F16H 37/04 (2006.01); F16H 3/44 (2006.01)
CPC F16H 37/046 (2013.01) [B60K 1/02 (2013.01); B60K 17/02 (2013.01); B60K 17/22 (2013.01); F16H 37/06 (2013.01); F16H 2003/445 (2013.01); F16H 2200/0021 (2013.01); F16H 2200/0052 (2013.01); F16H 2200/2005 (2013.01); F16H 2200/2094 (2013.01)] 9 Claims
OG exemplary drawing
 
9. A powertrain for an electric vehicle, the powertrain comprising:
a planetary gear having a first rotating element, a second rotating element, and a third rotating element, wherein the first rotating element is connected to a first shaft and the second rotating element is connected to a second shaft;
a first motor configured to selectively supply power to the first shaft at two or more gear ratios;
a first shift assembly configured to transfer power of the first motor to the first shaft through one of two or more external engagement gear trains having different gear ratios; and
a second motor configured to selectively supply power to the first shaft and the second shaft,
wherein:
a seventh gear is connected to the first shaft such that rotation of the seventh gear is restrained;
an eighth gear is connected to the second shaft such that rotation of the eighth gear is restrained;
a ninth gear in external engagement with the seventh gear and a tenth gear in external engagement with the eighth gear are disposed coaxially with each other; and
the second motor is disposed to be connectable to the first shaft and the second shaft via a second shift assembly disposed between the ninth gear and the tenth gear.