US 11,938,811 B2
Multi-stage shifting actuator for a vehicle power transfer unit
Lei Yang, Novi, MI (US); and Brent Peura, Famington, MI (US)
Assigned to GKN Automotive Limited, Birmingham (GB)
Appl. No. 17/617,520
Filed by GKN Automotive Limited, Birmingham (GB)
PCT Filed Jun. 29, 2020, PCT No. PCT/US2020/040054
§ 371(c)(1), (2) Date Dec. 8, 2021,
PCT Pub. No. WO2020/264470, PCT Pub. Date Dec. 30, 2020.
Claims priority of provisional application 62/868,772, filed on Jun. 28, 2019.
Prior Publication US 2022/0297536 A1, Sep. 22, 2022
Int. Cl. B60K 17/34 (2006.01); B60K 17/346 (2006.01); B60K 17/354 (2006.01); F16D 3/06 (2006.01); F16D 11/14 (2006.01); F16D 23/12 (2006.01)
CPC B60K 17/346 (2013.01) [B60K 17/354 (2013.01); F16D 3/06 (2013.01); F16D 11/14 (2013.01); F16D 2023/123 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A vehicle power transfer unit assembly, comprising:
an input shaft;
a shift collar engaged with the input shaft and operable between a first position, and a second position, a third position and a fourth position;
an outer cam ring disposed around a portion of the shift collar, the outer cam ring including an inner surface defining a plurality of levels; and
an inner cam ring engaged with the shift collar and disposed radially inward from the outer cam ring, the inner cam ring including a jaw engageable with the plurality of levels;
wherein the shift collar is moved from one of the first position, the second position, the third position or the fourth position to a different one of the first position, the second position, the third position and the fourth position when the jaw is moved from engagement with one of the plurality of levels to engagement with another of the plurality of levels.