US 12,000,464 B1
Multi-speed planetary transmission
Isaac Mock, Martinsville, IN (US); and Michael Rietdorf, Brownsburg, IN (US)
Assigned to Allison Transmission, Inc., Indianapolis, IN (US)
Filed by Allison Transmission, Inc., Indianapolis, IN (US)
Filed on Aug. 22, 2023, as Appl. No. 18/236,752.
Int. Cl. F16H 3/62 (2006.01); F16H 57/02 (2012.01)
CPC F16H 3/62 (2013.01) [F16H 57/02 (2013.01); F16H 2057/02043 (2013.01); F16H 2200/006 (2013.01); F16H 2200/0065 (2013.01); F16H 2200/0095 (2013.01); F16H 2200/2015 (2013.01); F16H 2200/2048 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A transmission comprising:
at least one stationary member;
an input member rotatable relative to the at least one stationary member;
a plurality of planetary gearsets operatively coupled to the input member, each of the plurality of planetary gearsets including a first gearset component, a second gearset component, and a third gearset component, the plurality of planetary gearsets including a first planetary gearset, a second planetary gearset, a third planetary gearset, a fourth planetary gearset, and a fifth planetary gearset, the input member is fixedly coupled to the first gearset component of the first planetary gearset;
an output member operatively coupled to the input member through the plurality of planetary gearsets and rotatable relative to the at least one stationary member, the output member is fixedly coupled to the second gearset component of the third planetary gearset, the first gearset component of the fourth planetary gearset, and the first gearset component of the fifth planetary gearset;
a first interconnector which fixedly couples the second gearset component of the second planetary gearset, the third gearset component of the third planetary gearset, and the third gearset component of the fourth planetary gearset together;
a second interconnector which fixedly couples the third gearset component of the second planetary gearset and the second gearset component of the first planetary gearset together;
a third interconnector which fixedly couples the second gearset component of the fourth planetary gearset and the third gearset component of the fifth planetary gearset together;
a fourth interconnector which fixedly couples the first gearset component of the second planetary gearset and the first gearset component of the third planetary gearset together; and
a plurality of selective couplers, wherein the plurality of selective couplers includes:
a first selective coupler which, when engaged, fixedly couples the input member and the first gearset component of the first planetary gearset to the first gearset component of the second planetary gearset and the first gearset component of the third planetary gearset;
a second selective coupler which, when engaged, fixedly couples the input member and the first gearset component of the first planetary gearset to the second gearset component of the second planetary gearset, the third gearset component of the third planetary gearset, and the third gearset component of the fourth planetary gearset;
a third selective coupler which, when engaged, fixedly couples the third gearset component of the first planetary gearset to the at least one stationary member;
a fourth selective coupler which, when engaged, fixedly couples the second gearset component of the first planetary gearset and the third gearset component of the second planetary gearset to the at least one stationary member;
a fifth selective coupler which, when engaged, fixedly couples the second gearset component of the second planetary gearset, the third gearset component of the third planetary gearset, and the third gearset component of the fourth planetary gearset to the at least one stationary member;
a sixth selective coupler which, when engaged, fixedly couples the second gearset component of the fourth planetary gearset and the third gearset component of the fifth planetary gearset to the at least one stationary member; and
a seventh selective coupler which, when engaged, fixedly couples the second gearset component of the fifth planetary gearset to the at least one stationary member.