Multi-speed planetary transmission

A transmission comprising:

• at least one stationary member including a first housing having a first interior and second housing having a second interior, the second housing being removably coupled to the first housing;
• 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, the first planetary gearset, the second planetary gearset, and the third planetary gearset being received in the first interior of the first housing and the fourth planetary gearset and the fifth planetary gearset being received in the second interior of the second housing;
• 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 first gearset component of the fifth planetary gearset;
• a first interconnector including a first portion which fixedly couples the second gearset component of the second planetary gearset and the third gearset component of the third planetary gearset and a second portion which fixedly couples the second gearset component of the fourth planetary gearset and the third gearset component of the fifth planetary gearset together, the first portion of the first interconnector being removably coupled to the second portion of the first interconnector;
• a second interconnector which fixedly couples the second gearset component of the first planetary gearset to the third gearset component of the second planetary gearset;
• a third interconnector which fixedly couples the first gearset component of the second planetary gearset and the first gearset component of the third planetary gearset together;
• a plurality of selective couplers, the plurality of selective couplers including:
• a first selective coupler which, when engaged, fixedly couples 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, the first selective coupler being positioned in the first interior of the first housing;
• a second selective coupler which, when engaged, fixedly couples 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, the second gearset component of the fourth planetary gearset, and the third gearset component of the fifth 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, the third selective coupler being positioned in the first interior of the first housing;
• 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, the fourth selective coupler being positioned in the first interior of the first housing;
• 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, 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;
• a sixth selective coupler which, when engaged, fixedly couples the third gearset component of the fourth planetary gearset to the at least one stationary member, the sixth selective coupler being positioned in the second interior of the second housing;
• 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, the seventh selective coupler being positioned in the second interior of the second housing.

A transmission comprising:

• at least one stationary member including a first housing having a first interior and second housing having a second interior, the second housing being removably coupled to the first housing;
• 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, the first planetary gearset, the second planetary gearset, and the third planetary gearset being received in the first interior of the first housing and the fourth planetary gearset and the fifth planetary gearset being received in the second interior of the second housing;
• 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 third 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 second gearset component of the fourth planetary gearset together;
• a second interconnector which fixedly couples the second gearset component of the first planetary gearset to the third gearset component of the second planetary gearset, the second interconnector being positioned in the first interior of the first housing;
• a third interconnector which fixedly couples the first gearset component of the second planetary gearset to the first gearset component of the third planetary gearset, the third interconnector being positioned in the first interior of the first housing;
• a fourth interconnector which fixedly couples the third gearset component of the fourth planetary gearset to the first gearset component of the fifth planetary gearset, the fourth interconnector being positioned in the second interior of the second housing;
• and
• a plurality of selective couplers, wherein the plurality of selective couplers include a first number of clutches and a second number of brakes, wherein the second number is more than twice the first number.

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,
• the plurality of planetary gearsets including a first planetary gearset, a second planetary gearset, and a third planetary gearset wherein each of the first planetary gearset, the second planetary gearset, and the third planetary gearset includes a first gearset component, a second gearset component, and a third gearset component,
• the plurality of planetary gearsets further including a fourth planetary gearset, the fourth planetary gearset includes a first fourth planetary gearset sun gear, a second fourth planetary gearset sun gear, a planet carrier, a plurality of stepped planet gears, and a ring gear, each of the plurality of stepped planet gears having a stepped planet gear first gear intermeshed with the first fourth planetary gearset sun gear and the ring gear and a stepped planet gear second gear intermeshed with the second fourth planetary gearset sun gear,
• 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 and to the fourth 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 planet carrier of the fourth planetary gearset together;
• a second interconnector which fixedly couples the second gearset component of the first planetary gearset to the third gearset component of the second planetary gearset;
• a third interconnector which fixedly couples the first gearset component of the second planetary gearset to the first gearset component of the third planetary gearset;
• and
• a plurality of selective couplers, wherein the plurality of selective couplers include a first number of clutches and a second number of brakes, wherein the second number is more than the first number.

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,
• the plurality of planetary gearsets including a first planetary gearset, a second planetary gearset, and a third planetary gearset wherein each of the first planetary gearset, the second planetary gearset, and the third planetary gearset includes a first gearset component, a second gearset component, and a third gearset component,
• the plurality of planetary gearsets further including a fourth planetary gearset, the fourth planetary gearset includes a sun gear, a planet carrier, a plurality of stepped planet gears, and a plurality of ring gears, the plurality of ring gears including a first fourth planetary gearset ring gear and a second fourth planetary gearset ring gear, each of the plurality of stepped planet gears having a stepped planet gear first gear intermeshed with the sun gear and the first fourth planetary gearset ring gear and a stepped planet gear second gear intermeshed with the second fourth planetary gearset ring gear,
• 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 and to the fourth 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 first fourth planetary gearset ring gear of the fourth planetary gearset together;
• a second interconnector which fixedly couples the second gearset component of the first planetary gearset to the third gearset component of the second planetary gearset;
• a third interconnector which fixedly couples the first gearset component of the second planetary gearset to the first gearset component of the third planetary gearset;
• and
• a plurality of selective couplers, wherein the plurality of selective couplers include a first number of clutches and a second number of brakes, wherein the second number is more than the first number.

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,
• the plurality of planetary gearsets including a first planetary gearset, a second planetary gearset, and a third planetary gearset wherein each of the first planetary gearset, the second planetary gearset, and the third planetary gearset includes a first gearset component, a second gearset component, and a third gearset component,
• the plurality of planetary gearsets further including a fourth planetary gearset, the fourth planetary gearset includes a sun gear, a planet carrier, a first plurality of planet gears, a second plurality of planet gears, and a plurality of ring gears, the plurality of ring gears including a first fourth planetary gearset ring gear and a second fourth planetary gearset ring gear, each of the plurality of first plurality of planet gears is intermeshed with a respective one of the second plurality of planet gears, the first plurality of planet gears are further intermeshed with the sun gear and the second fourth planetary gearset ring gear, the second plurality of planet gears are further intermeshed with the first fourth planetary gearset ring gear,
• 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 and to the fourth 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 planet carrier of the fourth planetary gearset together;
• a second interconnector which fixedly couples the second gearset component of the first planetary gearset to the third gearset component of the second planetary gearset;
• a third interconnector which fixedly couples the first gearset component of the second planetary gearset to the first gearset component of the third planetary gearset;
• and
• a plurality of selective couplers, wherein the plurality of selective couplers include a first number of clutches and a second number of brakes, wherein the second number is more than the first number.

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,
• the plurality of planetary gearsets including a first planetary gearset, a second planetary gearset, and a third planetary gearset wherein each of the first planetary gearset, the second planetary gearset, and the third planetary gearset includes a first gearset component, a second gearset component, and a third gearset component,
• the plurality of planetary gearsets further including a fourth planetary gearset, the fourth planetary gearset includes a plurality of sun gears including a first fourth planetary gearset sun gear and a second fourth planetary gearset sun gear, a planet carrier, a first plurality of planet gears, a second plurality of planet gears, and a ring gear, each of the plurality of first plurality of planet gears is intermeshed with a respective one of the second plurality of planet gears, the first plurality of planet gears are further intermeshed with the first fourth planetary gearset sun gear, the second plurality of planet gears are further intermeshed with the ring gear and the second fourth planetary gearset sun gear,
• 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 and to the fourth 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 planet carrier of the fourth planetary gearset together;
• a second interconnector which fixedly couples the second gearset component of the first planetary gearset to the third gearset component of the second planetary gearset;
• a third interconnector which fixedly couples the first gearset component of the second planetary gearset to the first gearset component of the third planetary gearset;
• and
• a plurality of selective couplers, wherein the plurality of selective couplers include a first number of clutches and a second number of brakes, wherein the second number is more than the first number.