MULTI-SPEED TRANSMISSION
First Claim
Patent Images
1. A transmission comprising:
- an input member;
an output member;
a transmission housing having a first wall, a second wall, and a third wall extending between the first and second walls;
a first, second, third and fourth planetary gear set disposed within the transmission housing, wherein the first planetary gear set is adjacent the first wall, the second planetary gear set is adjacent the first planetary gear set, the fourth planetary gear set is adjacent the second wall, and the third planetary gear set is between the second and fourth planetary gear sets, each planetary gear set having a sun gear member, a ring gear member, and a planet carrier member supporting a plurality of planet gears each configured to intermesh with both the sun gear member and the ring gear member, wherein the input member is continuously interconnected with the planet carrier member of the second planetary gear set, and the output member is continuously interconnected with the planet carrier member of the fourth planetary gear set and the planet carrier member of the third planetary gear set, and wherein the ring gear member of the fourth planetary gear set is permanently coupled to the planet carrier member of the first planetary gear set;
wherein the transmission housing has a first area defined radially inward from an outer periphery of the planetary gear sets and axially bounded by the first wall and the first planetary gear set, a second area defined radially inward from the outer periphery of the planetary gear sets and axially bounded by the first and second planetary gear sets, a third area defined radially inward from the outer periphery of the planetary gear sets and axially bounded by the second and third planetary gear sets, a fourth area defined radially inward from the outer periphery of the planetary gear sets and axially bounded by the third and fourth planetary gear sets, a fifth area defined radially inward from the outer periphery of the planetary gear sets and axially bounded by the fourth planetary gear set and the second wall, and a sixth area defined radially inward from the third wall and radially outward from the outer periphery of the planetary gear sets and axially bounded by the first wall and the second wall;
a first intermediate membera first clutch selectively engageable to interconnect the sun gear member of the fourth planetary gear set to the planet carrier member of the second planetary gear set;
a second clutch selectively engageable to interconnect the sun gear member of the fourth planetary gear set to the sun gear member of the third planetary gear set and the ring gear member of the second planetary gear set;
a third clutch selectively engageable to interconnect the sun gear member of the fourth planetary gear set to the ring gear member of the third planetary gear set;
a first brake selectively engageable to interconnect the sun gear member of the first planetary gear set and the sun gear member of the second planetary gear set to the transmission housing;
a second brake selectively engageable to interconnect the ring gear member of the first planetary gear set to the transmission housing;
wherein the first clutch is located in at least one of the third, fourth, and fifth areas, the second clutch is located in the fourth area, the third clutch is located in at least one of the fourth and sixth areas, the first brake is located in at least one of the first, fifth, and sixth areas, and the second brake is located in at least one of the first, fifth, and sixth areas; and
wherein the clutches and brakes are selectively engageable to establish at least eight forward speed ratios and at least one reverse speed ratio between the input member and the output member.
12 Assignments
0 Petitions
Accused Products
Abstract
A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes a sun gear member, a planet carrier member, and a ring gear member. The torque transmitting devices include clutches and brakes arranged within a transmission housing.
36 Citations
129 Claims
-
1. A transmission comprising:
-
an input member; an output member; a transmission housing having a first wall, a second wall, and a third wall extending between the first and second walls; a first, second, third and fourth planetary gear set disposed within the transmission housing, wherein the first planetary gear set is adjacent the first wall, the second planetary gear set is adjacent the first planetary gear set, the fourth planetary gear set is adjacent the second wall, and the third planetary gear set is between the second and fourth planetary gear sets, each planetary gear set having a sun gear member, a ring gear member, and a planet carrier member supporting a plurality of planet gears each configured to intermesh with both the sun gear member and the ring gear member, wherein the input member is continuously interconnected with the planet carrier member of the second planetary gear set, and the output member is continuously interconnected with the planet carrier member of the fourth planetary gear set and the planet carrier member of the third planetary gear set, and wherein the ring gear member of the fourth planetary gear set is permanently coupled to the planet carrier member of the first planetary gear set; wherein the transmission housing has a first area defined radially inward from an outer periphery of the planetary gear sets and axially bounded by the first wall and the first planetary gear set, a second area defined radially inward from the outer periphery of the planetary gear sets and axially bounded by the first and second planetary gear sets, a third area defined radially inward from the outer periphery of the planetary gear sets and axially bounded by the second and third planetary gear sets, a fourth area defined radially inward from the outer periphery of the planetary gear sets and axially bounded by the third and fourth planetary gear sets, a fifth area defined radially inward from the outer periphery of the planetary gear sets and axially bounded by the fourth planetary gear set and the second wall, and a sixth area defined radially inward from the third wall and radially outward from the outer periphery of the planetary gear sets and axially bounded by the first wall and the second wall; a first intermediate member a first clutch selectively engageable to interconnect the sun gear member of the fourth planetary gear set to the planet carrier member of the second planetary gear set; a second clutch selectively engageable to interconnect the sun gear member of the fourth planetary gear set to the sun gear member of the third planetary gear set and the ring gear member of the second planetary gear set; a third clutch selectively engageable to interconnect the sun gear member of the fourth planetary gear set to the ring gear member of the third planetary gear set; a first brake selectively engageable to interconnect the sun gear member of the first planetary gear set and the sun gear member of the second planetary gear set to the transmission housing; a second brake selectively engageable to interconnect the ring gear member of the first planetary gear set to the transmission housing; wherein the first clutch is located in at least one of the third, fourth, and fifth areas, the second clutch is located in the fourth area, the third clutch is located in at least one of the fourth and sixth areas, the first brake is located in at least one of the first, fifth, and sixth areas, and the second brake is located in at least one of the first, fifth, and sixth areas; and wherein the clutches and brakes are selectively engageable to establish at least eight forward speed ratios and at least one reverse speed ratio between the input member and the output member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A transmission comprising:
-
an input member; an output member; a transmission housing having a first wall, a second wall, and a third wall extending between the first and second walls; a first, second, third and fourth planetary gear set disposed within the transmission housing, wherein the first planetary gear set is adjacent the first wall, the second planetary gear set is adjacent the first planetary gear set, the fourth planetary gear set is adjacent the second wall, and the third planetary gear set is between the second and fourth planetary gear sets, each planetary gear set having a sun gear member, a ring gear member, and a planet carrier member supporting a plurality of planet gears each configured to intermesh with both the sun gear member and the ring gear member, wherein the input member is continuously interconnected with the planet carrier member of the second planetary gear set, and the output member is continuously interconnected with the planet carrier member of the fourth planetary gear set and the planet carrier member of the third planetary gear set, and wherein the ring gear member of the fourth planetary gear set is permanently coupled to the planet carrier member of the first planetary gear set; wherein the transmission housing has a first area defined radially inward from an outer periphery of the planetary gear sets and axially bounded by the first wall and the first planetary gear set, a second area defined radially inward from the outer periphery of the planetary gear sets and axially bounded by the first and second planetary gear sets, a third area defined radially inward from the outer periphery of the planetary gear sets and axially bounded by the second and third planetary gear sets, a fourth area defined radially inward from the outer periphery of the planetary gear sets and axially bounded by the third and fourth planetary gear sets, a fifth area defined radially inward from the outer periphery of the planetary gear sets and axially bounded by the fourth planetary gear set and the second wall, and a sixth area defined radially inward from the third wall and radially outward from the outer periphery of the planetary gear sets and axially bounded by the first wall and the second wall; a first clutch selectively engageable to interconnect the sun gear member of the fourth planetary gear set to the planet carrier member of the second planetary gear set; a second clutch selectively engageable to interconnect the sun gear member of the fourth planetary gear set to the sun gear member of the third planetary gear set and the ring gear member of the second planetary gear set; a third clutch selectively engageable to interconnect the sun gear member of the fourth planetary gear set to the ring gear member of the third planetary gear set; a first brake selectively engageable to interconnect the sun gear member of the first planetary gear set and the sun gear member of the second planetary gear set to the transmission housing; a second brake selectively engageable to interconnect the ring gear member of the first planetary gear set to the transmission housing; wherein the first clutch is located in at least one of the second and sixth areas, the second clutch is located in at least one of the second, third, and sixth areas, the third clutch is located in at least one of the third, fourth, and sixth areas, the first brake is located in at least one of the first, fifth, and sixth areas, and the second brake is located in at least one of the first, fifth, and sixth areas; and wherein the clutches and brakes are selectively engageable to establish at least eight forward speed ratios and at least one reverse speed ratio between the input member and the output member. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
-
-
29. A transmission comprising:
-
an input member; an output member; a transmission housing having a first wall, a second wall, and a third wall extending between the first and second walls; a first, second, third and fourth planetary gear set disposed within the transmission housing, wherein the second planetary gear set is adjacent the first wall, the third planetary gear set is adjacent the second planetary gear set, the fourth planetary gear set is adjacent the second wall, and the first planetary gear set is between the third and fourth planetary gear sets, each planetary gear set having a sun gear member, a ring gear member, and a planet carrier member supporting a plurality of planet gears each configured to intermesh with both the sun gear member and the ring gear member, wherein the input member is continuously interconnected with the planet carrier member of the second planetary gear set, and the output member is continuously interconnected with the planet carrier member of the fourth planetary gear set and the planet carrier member of the third planetary gear set, and wherein the ring gear member of the fourth planetary gear set is permanently coupled to the planet carrier member of the first planetary gear set; wherein the transmission housing has a first area defined radially inward from an outer periphery of the planetary gear sets and axially bounded by the first wall and the second planetary gear set, a second area defined radially inward from the outer periphery of the planetary gear sets and axially bounded by the second and third planetary gear sets, a third area defined radially inward from the outer periphery of the planetary gear sets and axially bounded by the third and first planetary gear sets, a fourth area defined radially inward from the outer periphery of the planetary gear sets and axially bounded by the first and fourth planetary gear sets, a fifth area defined radially inward from the outer periphery of the planetary gear sets and axially bounded by the fourth planetary gear set and the second wall, and a sixth area defined radially inward from the third wall and radially outward from the outer periphery of the planetary gear sets and axially bounded by the first wall and the second wall; a first clutch selectively engageable to interconnect the sun gear member of the fourth planetary gear set to the planet carrier member of the second planetary gear set; a second clutch selectively engageable to interconnect the sun gear member of the fourth planetary gear set to the sun gear member of the third planetary gear set and the ring gear member of the second planetary gear set; a third clutch selectively engageable to interconnect the sun gear member of the fourth planetary gear set to the ring gear member of the third planetary gear set; a first brake selectively engageable to interconnect the sun gear member of the first planetary gear set and the sun gear member of the second planetary gear set to the transmission housing; a second brake selectively engageable to interconnect the ring gear member of the first planetary gear set to the transmission housing; wherein the first clutch is located in at least one of the first, second, third, and sixth areas, the second clutch is located in at least one of the first, second, third, and sixth areas, the third clutch is located in at least one of the first, second, third, fourth, fifth, and sixth areas, the first brake is located in at least one of the first, third, fifth, and sixth areas, and the second brake is located in at least one of the first, fourth, fifth, and sixth areas; and wherein the clutches and brakes are selectively engageable to establish at least eight forward speed ratios and at least one reverse speed ratio between the input member and the output member. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52)
-
-
53. A transmission comprising:
-
an input member; an output member; a transmission housing having a first wall, a second wall, and a third wall extending between the first and second walls; a first, second, third and fourth planetary gear set disposed within the transmission housing, wherein the second planetary gear set is adjacent the first wall, the first planetary gear set is adjacent the second planetary gear set, the fourth planetary gear set is adjacent the second wall, and the third planetary gear set is between the first and fourth planetary gear sets, each planetary gear set having a sun gear member, a ring gear member, and a planet carrier member supporting a plurality of planet gears each configured to intermesh with both the sun gear member and the ring gear member, wherein the input member is continuously interconnected with the planet carrier member of the second planetary gear set, and the output member is continuously interconnected with the planet carrier member of the fourth planetary gear set and the planet carrier member of the third planetary gear set, and wherein the ring gear member of the fourth planetary gear set is permanently coupled to the planet carrier member of the first planetary gear set; wherein the transmission housing has a first area defined radially inward from an outer periphery of the planetary gear sets and axially bounded by the first wall and the second planetary gear set, a second area defined radially inward from the outer periphery of the planetary gear sets and axially bounded by the second and first planetary gear sets, a third area defined radially inward from the outer periphery of the planetary gear sets and axially bounded by the first and third planetary gear sets, a fourth area defined radially inward from the outer periphery of the planetary gear sets and axially bounded by the third and fourth planetary gear sets, a fifth area defined radially inward from the outer periphery of the planetary gear sets and axially bounded by the fourth planetary gear set and the second wall, and a sixth area defined radially inward from the third wall and radially outward from the outer periphery of the planetary gear sets and axially bounded by the first wall and the second wall; a first clutch selectively engageable to interconnect the sun gear member of the fourth planetary gear set to the planet carrier member of the second planetary gear set; a second clutch selectively engageable to interconnect the sun gear member of the fourth planetary gear set to the sun gear member of the third planetary gear set and the ring gear member of the second planetary gear set; a third clutch selectively engageable to interconnect the sun gear member of the fourth planetary gear set to the ring gear member of the third planetary gear set; a first brake selectively engageable to interconnect the sun gear member of the first planetary gear set and the sun gear member of the second planetary gear set to the transmission housing; a second brake selectively engageable to interconnect the ring gear member of the first planetary gear set to the transmission housing; wherein the first clutch is located in at least one of the first, third, and sixth areas, the second clutch is located in at least one of the first, third, and sixth areas, the third clutch is located in at least one of the third, fourth, fifth, and sixth areas, the first brake is located in at least one of the first, second, fifth, and sixth areas, and the second brake is located in at least one of the first, second, fifth, and sixth areas; and wherein the clutches and brakes are selectively engageable to establish at least eight forward speed ratios and at least one reverse speed ratio between the input member and the output member. - View Dependent Claims (54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72)
-
-
73. A transmission comprising:
-
an input member; an output member; a transmission housing having a first wall, a second wall, and a third wall extending between the first and second walls; a first, second, third and fourth planetary gear set disposed within the transmission housing, wherein the second planetary gear set is adjacent the first wall, the first planetary gear set is adjacent the second planetary gear set, the third planetary gear set is adjacent the second wall, and the fourth planetary gear set is between the first and third planetary gear sets, each planetary gear set having a sun gear member, a ring gear member, and a planet carrier member supporting a plurality of planet gears each configured to intermesh with both the sun gear member and the ring gear member, wherein the input member is continuously interconnected with the planet carrier member of the second planetary gear set, and the output member is continuously interconnected with the planet carrier member of the fourth planetary gear set and the planet carrier member of the third planetary gear set, and wherein the ring gear member of the fourth planetary gear set is permanently coupled to the planet carrier member of the first planetary gear set; wherein the transmission housing has a first area defined radially inward from an outer periphery of the planetary gear sets and axially bounded by the first wall and the second planetary gear set, a second area defined radially inward from the outer periphery of the planetary gear sets and axially bounded by the second and first planetary gear sets, a third area defined radially inward from the outer periphery of the planetary gear sets and axially bounded by the first and fourth planetary gear sets, a fourth area defined radially inward from the outer periphery of the planetary gear sets and axially bounded by the fourth and third planetary gear sets, a fifth area defined radially inward from the outer periphery of the planetary gear sets and axially bounded by the third planetary gear set and the second wall, and a sixth area defined radially inward from the third wall and radially outward from the outer periphery of the planetary gear sets and axially bounded by the first wall and the second wall; a first clutch selectively engageable to interconnect the sun gear member of the fourth planetary gear set to the planet carrier member of the second planetary gear set; a second clutch selectively engageable to interconnect the sun gear member of the fourth planetary gear set to the sun gear member of the third planetary gear set and the ring gear member of the second planetary gear set; a third clutch selectively engageable to interconnect the sun gear member of the fourth planetary gear set to the ring gear member of the third planetary gear set; a first brake selectively engageable to interconnect the sun gear member of the first planetary gear set and the sun gear member of the second planetary gear set to the transmission housing; a second brake selectively engageable to interconnect the ring gear member of the first planetary gear set to the transmission housing; wherein the first clutch is located in at least one of the first, second, third, and sixth areas, the second clutch is located in at least one of the first, second, third, and sixth areas, the third clutch is located in at least one of the fourth, fifth, and sixth areas, the first brake is located in at least one of the first, second, fifth, and sixth areas, and the second brake is located in at least one of the first, second, fifth, and sixth areas; and wherein the clutches and brakes are selectively engageable to establish at least eight forward speed ratios and at least one reverse speed ratio between the input member and the output member. - View Dependent Claims (74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93)
-
-
94. A transmission comprising:
-
an input member; an output member; a transmission housing having a first wall, a second wall, and a third wall extending between the first and second walls; a first, second, third and fourth planetary gear set disposed within the transmission housing, wherein the third planetary gear set is adjacent the first wall, the second planetary gear set is adjacent the third planetary gear set, the fourth planetary gear set is adjacent the second wall, and the first planetary gear set is between the second and fourth planetary gear sets, each planetary gear set having a sun gear member, a ring gear member, and a planet carrier member supporting a plurality of planet gears each configured to intermesh with both the sun gear member and the ring gear member, wherein the input member is continuously interconnected with the planet carrier member of the second planetary gear set, and the output member is continuously interconnected with the planet carrier member of the fourth planetary gear set and the planet carrier member of the third planetary gear set, and wherein the ring gear member of the fourth planetary gear set is permanently coupled to the planet carrier member of the first planetary gear set; wherein the transmission housing has a first area defined radially inward from an outer periphery of the planetary gear sets and axially bounded by the first wall and the third planetary gear set, a second area defined radially inward from the outer periphery of the planetary gear sets and axially bounded by the third and second planetary gear sets, a third area defined radially inward from the outer periphery of the planetary gear sets and axially bounded by the second and first planetary gear sets, a fourth area defined radially inward from the outer periphery of the planetary gear sets and axially bounded by the first and fourth planetary gear sets, a fifth area defined radially inward from the outer periphery of the planetary gear sets and axially bounded by the fourth planetary gear set and the second wall, and a sixth area defined radially inward from the third wall and radially outward from the outer periphery of the planetary gear sets and axially bounded by the first wall and the second wall; a first clutch selectively engageable to interconnect the sun gear member of the fourth planetary gear set to the planet carrier member of the second planetary gear set; a second clutch selectively engageable to interconnect the sun gear member of the fourth planetary gear set to the sun gear member of the third planetary gear set and the ring gear member of the second planetary gear set; a third clutch selectively engageable to interconnect the sun gear member of the fourth planetary gear set to the ring gear member of the third planetary gear set; a first brake selectively engageable to interconnect the sun gear member of the first planetary gear set and the sun gear member of the second planetary gear set to the transmission housing; a second brake selectively engageable to interconnect the ring gear member of the first planetary gear set to the transmission housing; wherein the first clutch is located in at least one of the first, second, and sixth areas, the second clutch is located in at least one of the first, second, and sixth areas, the third clutch is located in at least one of the first, second, and sixth areas, the first brake is located in at least one of the first, third, fifth, and sixth areas, and the second brake is located in at least one of the first, fifth, and sixth areas; and wherein the clutches and brakes are selectively engageable to establish at least eight forward speed ratios and at least one reverse speed ratio between the input member and the output member. - View Dependent Claims (95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111)
-
-
112. A transmission comprising:
-
an input member; an output member; a transmission housing having a first wall, a second wall, and a third wall extending between the first and second walls; a first, second, third and fourth planetary gear set disposed within the transmission housing, wherein the third planetary gear set is adjacent the first wall, the fourth planetary gear set is adjacent the third planetary gear set, the first planetary gear set is adjacent the second wall, and the second planetary gear set is between the fourth and first planetary gear sets, each planetary gear set having a sun gear member, a ring gear member, and a planet carrier member supporting a plurality of planet gears each configured to intermesh with both the sun gear member and the ring gear member, wherein the input member is continuously interconnected with the planet carrier member of the second planetary gear set, and the output member is continuously interconnected with the planet carrier member of the fourth planetary gear set and the planet carrier member of the third planetary gear set, and wherein the ring gear member of the fourth planetary gear set is permanently coupled to the planet carrier member of the first planetary gear set; wherein the transmission housing has a first area defined radially inward from an outer periphery of the planetary gear sets and axially bounded by the first wall and the third planetary gear set, a second area defined radially inward from the outer periphery of the planetary gear sets and axially bounded by the third and fourth planetary gear sets, a third area defined radially inward from the outer periphery of the planetary gear sets and axially bounded by the fourth and second planetary gear sets, a fourth area defined radially inward from the outer periphery of the planetary gear sets and axially bounded by the second and first planetary gear sets, a fifth area defined radially inward from the outer periphery of the planetary gear sets and axially bounded by the first planetary gear set and the second wall, and a sixth area defined radially inward from the third wall and radially outward from the outer periphery of the planetary gear sets and axially bounded by the first wall and the second wall; a first clutch selectively engageable to interconnect the sun gear member of the fourth planetary gear set to the planet carrier member of the second planetary gear set; a second clutch selectively engageable to interconnect the sun gear member of the fourth planetary gear set to the sun gear member of the third planetary gear set and the ring gear member of the second planetary gear set; a third clutch selectively engageable to interconnect the sun gear member of the fourth planetary gear set to the ring gear member of the third planetary gear set; a first brake selectively engageable to interconnect the sun gear member of the first planetary gear set and the sun gear member of the second planetary gear set to the transmission housing; a second brake selectively engageable to interconnect the ring gear member of the first planetary gear set to the transmission housing; wherein the first clutch is located in at least one of the first, second, or sixth areas, the second clutch is located in at least one of the first, second, and sixth areas, the third clutch is located in at least one of the first, second, and sixth areas, the first brake is located in at least one of the first, fourth, fifth, and sixth areas, and the second brake is located in at least one of the first, fifth, and sixth areas; and wherein the clutches and brakes are selectively engageable to establish at least eight forward speed ratios and at least one reverse speed ratio between the input member and the output member. - View Dependent Claims (113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129)
-
Specification
-
- Resources
Litigation Campaign Assessment
Thank you for your request. You will receive a custom alert email when the Litigation Campaign Assessment is available.
×
-
Current AssigneeGM Global Technology Operations LLC (General Motors Company)
-
Original AssigneeGM Global Technology Operations LLC (General Motors Company)
-
InventorsHart, James M., Grochowski, Edwin T., Phillips, Andrew W., Wooden, Elizabeth I., Wittkopp, Scott H., CAREY, CLINTON E.
-
Granted Patent
-
Time in Patent OfficeDays
-
Field of Search
-
US Class Current475/283
-
CPC Class CodesF16H 2200/006 the gear ratios comprising ...F16H 2200/2012 with four sets of orbital g...F16H 2200/2043 with five engaging meansF16H 3/66 composed of a number of gea...
