Brake For Sun And Orbit Patents (Class 475/282)
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Patent number: 8439793Abstract: A transmission is provided having an input member, an output member, three planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and brakes.Type: GrantFiled: July 22, 2010Date of Patent: May 14, 2013Assignee: GM Global Technology Operations LLCInventors: Clinton E. Carey, Scott H. Wittkopp, Andrew W. Phillips, James M. Hart
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Patent number: 8435152Abstract: An eight speed automatic transmission is provided having an input member, an output member, four planetary gear sets and five torque transmitting devices. Three of the planetary gear sets are simple and one planetary gear set is compound. Each of the plurality of planetary gear sets has first, second and third members: a sun gear, a ring gear and a planet carrier having a plurality of planet gears rotatably disposed thereon. Three of the torque transmitting devices are clutches and two of the devices are brakes. Eight embodiments of the transmission having different arrangements of the planetary gear sets, clutches and brakes are disclosed.Type: GrantFiled: April 16, 2012Date of Patent: May 7, 2013Assignee: GM Global Technology Operations LLCInventors: Clinton E. Carey, James M. Hart, Andrew W. Phillips, Scott H. Wittkopp
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Patent number: 8425367Abstract: A transmission of the present invention has 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 first, second and third members. The torque transmitting devices may include clutches and brakes. The torque transmitting devices are selectively engageable in combinations of at least three to establish at least ten forward speed ratios and at least one reverse speed ratio.Type: GrantFiled: October 5, 2010Date of Patent: April 23, 2013Assignee: GM Global Technology Operations LLCInventors: Andrew W. Phillips, Scott H. Wittkopp, James M. Hart, Clinton E. Carey
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Patent number: 8425371Abstract: A transmission is provided having an input member, an output member, three planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and brakes.Type: GrantFiled: July 12, 2010Date of Patent: April 23, 2013Assignee: GM Global Technology Operations LLCInventors: James M. Hart, Andrew W. Phillips, Scott H. Wittkopp, Clinton E. Carey
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Patent number: 8414447Abstract: A transmission device for distributing drive torque between two output shafts. The device comprises three planetary gearsets (2, 3, 11). An input shaft is connected to a first element of gearsets (2, 3). The output shafts each couple a second element of gearsets (2, 3). A third element of gearset (2) couples a first element of gearset (11) and is connectable, via brake (14), to the housing. A third element of gearset (3) is connectable, via brake (17), to the housing and, via a claw shifting element (24), to a second element of gearset (11). A third element of gearset (11) couples the housing. Claw shifting elements (24, 18) couple the brakes (14, 17) such that, to engage brakes (14, 17), the claw shifting elements are first coupled to the first element of gearset (11) or the third element of gearset (3), and then the brakes are engaged.Type: GrantFiled: December 22, 2011Date of Patent: April 9, 2013Assignee: ZF Friedrichshafen AGInventor: Thomas Rosemeier
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Patent number: 8414446Abstract: A multi-stage transmission (1) having a housing (9), a drive shaft (AN), an output shaft (AB), four planetary gear sets (RS1, RS2, RS3, RS4) each having first, second and third elements, at least eight rotatable shafts (1, 2, 3, 4, 5, 6, 7, 8), six shift elements, comprising four clutches (K1, K2, K3) and two brakes (B1, B2, B3). Selective engagement of the clutches and brakes results in different transmission ratios between the drive shaft (AN) and the output shaft (AB) so that up to nine forward gears can be implemented. The multi-stage transmission is delimited by the connections of the individual elements to each other and in that exactly three of the six shift elements are engage for gear step of the transmission.Type: GrantFiled: August 19, 2011Date of Patent: April 9, 2013Assignee: ZF Friedrichshafen AGInventors: Stefan Beck, Gerhard Gumpoltsberger, Hans-Peter Freudenreich
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Patent number: 8409040Abstract: A powertrain includes an input member, an output member, and a stationary member. A first and a second electric motor/generator are provided. Only two planetary gear sets are used, each having a respective first, second, and third member. An interconnecting member connects one of the members of a first one of the planetary gear sets to one of the members of a second one of the planetary gear sets. The input member, the output member, the first motor/generator and the second motor/generator are each continuously connected for common rotation with a different one of the members of the planetary gear sets that is not connected by the interconnecting member. Four brakes are each selectively engageable to ground a different respective one of the members of the planetary gear sets that is not connected by the interconnecting member to the stationary member.Type: GrantFiled: September 21, 2011Date of Patent: April 2, 2013Assignee: GM Global Technology Operations LLCInventors: Ravikanth GV, Alle Kumar Naveen, Kumpatla V Naidu, P Karthikeyan
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Publication number: 20130079189Abstract: A gear shifting apparatus that automatically performs gear shifting in response to a load is constituted by a small number of components. The gear shifting apparatus includes an output shaft coupled to a carrier of a planetary gear shifting mechanism, an operating ring that rotates relative to a ring gear of the planetary gear shifting mechanism, and a coil spring that biases the ring gear and the operating ring so as to maintain their relative rotational orientations in neutral orientations. The apparatus further includes an operating member that couples the ring gear and the carrier to each other when the relative rotational orientations of the ring gear and the operating ring are the neutral orientations, and fixes the ring gear and allows rotation of the carrier when the relative rotational orientations come off the neutral orientations.Type: ApplicationFiled: June 24, 2011Publication date: March 28, 2013Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Toshihiro Kobayashi, Mamoru Marutani, Takeshi Hashizume
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Patent number: 8403804Abstract: A front wheel drive transmission is provided having a transmission input member, a transmission 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 a brake arranged within a transmission housing.Type: GrantFiled: October 25, 2011Date of Patent: March 26, 2013Assignee: GM Global Technology Operations LLCInventors: Clinton E. Carey, Scott H. Wittkopp, James M. Hart, Andrew W. Phillips
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Patent number: 8403787Abstract: The present invention provides a hydraulic control system of a power train for a hybrid vehicle that allows the power train of a hybrid vehicle to implement all of two or more EV modes, two or more power split modes, and at least three or more fixed-stage modes, with a relatively simple configuration, and achieves satisfactory power performance of the power train and fuel efficiency and reduce the cost of the valve body, remove possibility of malfunction, and implements a limp home function when a controller is broken.Type: GrantFiled: September 14, 2010Date of Patent: March 26, 2013Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Youngchul Kim, Gwangseob Shin, Jonghyun Kim, Yeonho Kim, Jaeshin Yi
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Patent number: 8382634Abstract: A multi-stage transmission (1) having a housing (9), a drive shaft (AN), an output shaft (AB), four planetary gear sets (RS1, RS2, RS3, RS4) each having first, second and third elements, at least eight rotatable shafts (1, 2, 3, 4, 5, 6, 7, 8) and six shift elements comprising four clutches (K1, K2, K3, K4) and two brakes (B1, B2). Selective engagement of the clutches and brakes results in different transmission ratios between the drive shaft (AN) and the output shaft (AB) so that up to nine forward gears can be implemented. The multi-stage transmission is delimited by the connections of the individual elements to each other and exactly three of the six shift elements are engaged for each of the up to nine forward gears.Type: GrantFiled: August 19, 2011Date of Patent: February 26, 2013Assignee: ZF Friedrichshafen, AGInventors: Stefan Beck, Gerhard Gumpoltsberger, Hans-Peter Freudenreich
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Patent number: 8376896Abstract: A transmission is provided having an input member, an output member, a three planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. The planetary gear sets include first, second and third members. The torque transmitting devices include two clutches and two brakes.Type: GrantFiled: June 24, 2010Date of Patent: February 19, 2013Assignee: GM Global Technology Operations LLCInventors: Andrew W. Phillips, James M. Hart, Scott H. Wittkopp, James B. Borgerson
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Patent number: 8371975Abstract: A power train for a hybrid vehicle comprising may include: a first planetary gear set including rotary elements; a second planetary gear set including rotary elements at least one of which is connected with at least one of the rotary elements of the first planetary gear set; a first clutch that is configured to connect/disconnect one of the rotary elements of the first planetary gear set with/from one of the rotary elements of the second planetary gear set; and a first brake that is configured to restrain rotation of one rotary element of the second planetary gear set, wherein at least two or more independent power sources and an output element are connected to come of the rotary elements of the first planetary gear set and the second planetary gear set.Type: GrantFiled: December 2, 2009Date of Patent: February 12, 2013Assignee: Hyundai Motor CompanyInventors: Kangsoo Seo, Hyutae Shim
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Publication number: 20120329601Abstract: The invention concerns a multiple ratio transmission device with permanent meshing, in particular for making a gearbox capable of providing gear shifts without interrupting the power transmission, for example an automatic control or sequential control gearbox. Said device comprises three coaxial planetary trains using selective coupling means so that each provides local direct drive or at least one transmission ratio. According to the invention, said device comprises two coaxial planetary trains (TP1, TP2) belonging to two different power paths (8a and 8b) between an upstream rotary member and a downstream rotary member. Said device comprises two gear-type transfer elements (TR1, TR2) of different ratios, interposed between one of the rotary members and one of said planetary trains (TP1, TP2).Type: ApplicationFiled: September 7, 2012Publication date: December 27, 2012Applicant: ANTONOV AUTOMOTIVE TECHNOLOGIES, B.V.Inventors: Roumen Antonov, Cyril Mougeot
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Patent number: 8333676Abstract: A gear train of an automatic transmission realizes at least ten forward speeds and one reverse speed by combining four simple planetary gear sets with four clutches and two brakes. In addition, three friction elements are operated at each shift-speed. Therefore, the gear train has advantages of simplifying structures of the automatic transmission and improving power delivery performance and fuel economy.Type: GrantFiled: October 28, 2010Date of Patent: December 18, 2012Assignee: Hyundai Motor CompanyInventor: Woo-Yeol Kim
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Patent number: 8313402Abstract: A transmission for a hybrid electric vehicle, may include an input element where rotation power may be inputted and an output element from which the rotation power may be outputted, a first motor generator and a second motor generator, a first planetary gear set that may be a multiple planetary gear set having at least four or more rotary elements with which the input element, the output element, and the first motor generator may be connected, a second planetary gear set with which the output element and the second motor generator may be connected, and a first clutch and a second clutch.Type: GrantFiled: June 15, 2011Date of Patent: November 20, 2012Assignee: Hyundai Motor CompanyInventor: Jongsool Park
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Patent number: 8292767Abstract: A powertrain is provided having a multi-speed transmission. The 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.Type: GrantFiled: May 11, 2009Date of Patent: October 23, 2012Assignee: GM Global Technology Operations LLCInventors: James B. Borgerson, Donald L. Dusenberry, Andrew W. Phillips, Scott H. Wittkopp, Clinton E. Carey, James M. Hart
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Patent number: 8277355Abstract: A transmission is has an input member, an output member, two stacked planetary gear sets, a third planetary gear set, a plurality of coupling members and a plurality of torque transmitting devices. The stacked planetary gear sets have a first, second, third, fourth and fifth member and the third planetary gear set has a first, second and third member. The torque transmitting devices include clutches and brakes.Type: GrantFiled: July 7, 2010Date of Patent: October 2, 2012Assignee: GM Global Technology Operations LLCInventors: James M. Hart, Scott H. Wittkopp, James B. Borgerson
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Patent number: 8267832Abstract: A front wheel drive transmission is provided having a transmission input member, a transmission 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 a brake arranged within a transmission housing.Type: GrantFiled: December 8, 2008Date of Patent: September 18, 2012Assignee: GM Global Technology Operations LLCInventors: Clinton E. Carey, Scott H. Wittkopp, James M. Hart, Andrew W. Phillips
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Patent number: 8262532Abstract: A low-ratio transmission system configured to obtain the multiplication or reduction of speed, and the reduction or multiplication of stress between an input shaft and an output shaft with at least four different values, such that the input-output ratio can be close to one and furthermore that the four values form a geometric progression close to one.Type: GrantFiled: January 22, 2008Date of Patent: September 11, 2012Assignee: Sapa Placencia, S.L.Inventors: Pedro Aoiz Miguel, I{hacek over (n)}igo Garcia-Eizaga Telleria
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Patent number: 8251855Abstract: A transmission which comprises an input shaft and an output shaft, first, second, third and fourth planetary gear sets, third, fourth, fifth, sixth, seventh and eighth shafts, first, second, third, fourth and fifth gearshifting elements for achieving eight forward gears and one reverse gear. The first gearshifting element, when engaged, couples the third shaft with a housing of the transmission. The second gearshifting element, when engaged, couples the fourth shaft with the housing of the transmission. The third gearshifting element, when engaged, couples the input first shaft with the fifth shaft. The eighth shaft (8) is coupled with the fourth gearshifting element and the fifth gearshifting element (E), when engaged, couples the fifth shaft (5) and the seventh shaft (7).Type: GrantFiled: August 15, 2011Date of Patent: August 28, 2012Assignee: ZF Friedrichshafen AGInventors: Gabor Diosi, Josef Haupt, Gerhard Gumpoltsberger, Peter Ziemer, Martin Brehmer
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Patent number: 8251858Abstract: An eight speed automatic transmission is provided having an input member, an output member, four planetary gear sets and five torque transmitting devices. Three of the planetary gear sets are simple and one planetary gear set is compound. Each of the plurality of planetary gear sets has first, second and third members: a sun gear, a ring gear and a planet carrier having a plurality of planet gears rotatably disposed thereon. Three of the torque transmitting devices are clutches and two of the devices are brakes. Eight embodiments of the transmission having different arrangements of the planetary gear sets, clutches and brakes are disclosed.Type: GrantFiled: June 15, 2011Date of Patent: August 28, 2012Assignee: GM Global Technology Operations LLCInventors: Clinton E. Carey, James M. Hart, Andrew W. Phillips, Scott H. Wittkopp
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Patent number: 8241169Abstract: An automatic 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 first, second and third members. The torque transmitting devices may be either clutches or brakes.Type: GrantFiled: August 4, 2011Date of Patent: August 14, 2012Assignee: GM Global Technology Operations LLCInventors: Andrew W. Phillips, James M. Hart, Scott H. Wittkopp, Clinton E. Carey, Madhusudan Raghavan
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Patent number: 8241167Abstract: A front wheel drive transmission is provided having a transmission input member, a transmission 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 a brake arranged within a transmission housing.Type: GrantFiled: January 27, 2009Date of Patent: August 14, 2012Assignee: GM Global Technology Operations LLCInventors: Clinton E. Carey, Scott H. Wittkopp, James M. Hart, Andrew W. Phillips
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Patent number: 8241168Abstract: An automatic 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 first, second and third members. The torque transmitting devices may be either clutches or brakes.Type: GrantFiled: August 4, 2011Date of Patent: August 14, 2012Assignee: GM Global Technology Operations LLCInventors: Andrew W. Phillips, James M. Hart, Scott H. Wittkopp, Clinton E. Carey, Madhusudan Raghavan
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Patent number: 8235854Abstract: The present invention provides a power train for a hybrid vehicle that can achieve a fixed gear ratio mode where a vehicle is driven at a fixed gear ratio, such as shift stages of common transmission, only by the driving force of an engine without driving a motor generator, as well as an electric vehicle mode and a hybrid mode that are basic driving modes of a hybrid vehicle, such that it is possible to drive the vehicle with high efficiency in accordance with traveling conditions of the vehicle and improve fuel efficiency. Further, according to the power train for a hybrid vehicle, the number of gear teeth of a sun gear and a pinion of a planetary gear set, which is a component, can be changed in various ways, such that it is possible to more freely select the capacity of a clutch or a motor generator. Therefore, it is possible to design a compact transmission.Type: GrantFiled: November 20, 2009Date of Patent: August 7, 2012Assignee: Hyundai Motor CompanyInventors: Kangsoo Seo, Hyutae Shim
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Patent number: 8231498Abstract: An eight speed automatic transmission is provided having an input member, an output member, four planetary gear sets and five torque transmitting devices. Three of the planetary gear sets are simple and one planetary gear set is compound. Each of the plurality of planetary gear sets has first, second and third members: a sun gear, a ring gear and a planet carrier having a plurality of planet gears rotatably disposed thereon. Three of the torque transmitting devices are clutches and two of the devices are brakes. Eight embodiments of the transmission having different arrangements of the planetary gear sets, clutches and brakes are disclosed.Type: GrantFiled: June 15, 2011Date of Patent: July 31, 2012Assignee: GM Global Technology Operations LLCInventors: Clinton E. Carey, James M. Hart, Andrew W. Phillips, Scott H. Wittkopp
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Patent number: 8231500Abstract: An eight speed automatic transmission is provided having an input member, an output member, four planetary gear sets and five torque transmitting devices. Three of the planetary gear sets are simple and one planetary gear set is compound. Each of the plurality of planetary gear sets has first, second and third members: a sun gear, a ring gear and a planet carrier having a plurality of planet gears rotatably disposed thereon. Three of the torque transmitting devices are clutches and two of the devices are brakes. Eight embodiments of the transmission having different arrangements of the planetary gear sets, clutches and brakes are disclosed.Type: GrantFiled: June 15, 2011Date of Patent: July 31, 2012Assignee: GM Global Technology Operations LLCInventors: Clinton E. Carey, James M. Hart, Andrew W. Phillips, Scott H. Wittkopp
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Patent number: 8231499Abstract: An eight speed automatic transmission is provided having an input member, an output member, four planetary gear sets and five torque transmitting devices. Three of the planetary gear sets are simple and one planetary gear set is compound. Each of the plurality of planetary gear sets has first, second and third members: a sun gear, a ring gear and a planet carrier having a plurality of planet gears rotatably disposed thereon. Three of the torque transmitting devices are clutches and two of the devices are brakes. Eight embodiments of the transmission having different arrangements of the planetary gear sets, clutches and brakes are disclosed.Type: GrantFiled: June 15, 2011Date of Patent: July 31, 2012Assignee: GM Global Technology Operations LLCInventors: Clinton E. Carey, James M. Hart, Andrew W. Phillips, Scott H. Wittkopp
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Patent number: 8231497Abstract: An eight speed automatic transmission is provided having an input member, an output member, four planetary gear sets and five torque transmitting devices. Three of the planetary gear sets are simple and one planetary gear set is compound. Each of the plurality of planetary gear sets has first, second and third members: a sun gear, a ring gear and a planet carrier having a plurality of planet gears rotatably disposed thereon. Three of the torque transmitting devices are clutches and two of the devices are brakes. Eight embodiments of the transmission having different arrangements of the planetary gear sets, clutches and brakes are disclosed.Type: GrantFiled: June 15, 2011Date of Patent: July 31, 2012Assignee: GM Global Technology Operations LLCInventors: Clinton E. Carey, James M. Hart, Andrew W. Phillips, Scott H. Wittkopp
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Patent number: 8221280Abstract: An eight speed automatic transmission is provided having an input member, an output member, four planetary gear sets and five torque transmitting devices. Three of the planetary gear sets are simple and one planetary gear set is compound. Each of the plurality of planetary gear sets has first, second and third members: a sun gear, a ring gear and a planet carrier having a plurality of planet gears rotatably disposed thereon. Three of the torque transmitting devices are clutches and two of the devices are brakes. Eight embodiments of the transmission having different arrangements of the planetary gear sets, clutches and brakes are disclosed.Type: GrantFiled: June 15, 2011Date of Patent: July 17, 2012Assignee: GM Global Technology Operations LLCInventors: Clinton E. Carey, James M. Hart, Andrew W. Phillips, Scott H. Wittkopp
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Patent number: 8210981Abstract: A multi-stage transmission comprises planetary gearsets (P1, P2, P3, P4), shafts and shift elements. The carriers of gearsets (P1, P2) couple via shaft (4) which couples the sun gear of gearset (P3). The ring gear of the gearset (P1) couples the sun gear of gearset (P2) via shaft (8), which couples drive shaft (1) via clutch (18). The sun gear of gearset (P1) couples housing (G) by shaft (3) via brake (03), and shaft (1) via clutch (13). The ring gear of gearset (P2) couples housing (G) by shaft (5) via brake (05). The sun gear of gearset (P4) couples housing (G). Shaft (6) couples shaft (1) via clutch (16) and carrier of gearset (P3). Shaft (9) couples shaft (4) via clutch (49) and the ring gear of gearset (P4). Output shaft (2) couples the ring gear and the carrier respectively of gearsets (P3, P4).Type: GrantFiled: February 4, 2009Date of Patent: July 3, 2012Assignee: ZF Friedrichshafen AGInventors: Gert Bauknecht, Gerhard Gumpoltsberger, Peter Ziemer, Mark Mohr
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Patent number: 8206252Abstract: A hybrid powertrain includes an internal combustion engine, at least one electric machine and a multi-speed transmission. The electric machine is connected to a shaft between the internal combustion engine and the multi-speed transmission. The 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.Type: GrantFiled: April 17, 2009Date of Patent: June 26, 2012Assignee: GM Global Technology Operations LLCInventors: Donald L. Dusenberry, James B. Borgerson, James M. Hart, Scott H. Wittkopp, Andrew W. Phillips, Clinton E. Carey
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Patent number: 8202193Abstract: An automatic transmission includes a first planetary gear set; a second planetary gear set; a third planetary gear set; an input shaft; an output shaft; and five friction elements. A first ring gear is constantly locked. A third carrier is connected with a second ring gear to define a rotating member. The input shaft is constantly connected with a second carrier, and the output shaft is constantly connected with the rotating member. The five friction elements include a first friction element adapted to selectively connect a first carrier with a third ring gear; a second friction element adapted to selectively connect a first sun gear with the second carrier; a third friction element adapted to selectively connect the first sun gear with a second sun gear; a fourth friction element adapted to selectively connect the first carrier with the second carrier; and a fifth friction element adapted to selectively connect the first carrier with the second sun gear.Type: GrantFiled: November 14, 2008Date of Patent: June 19, 2012Assignee: JATCO LtdInventor: Takeo Hiramatsu
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Patent number: 8202191Abstract: A front wheel drive 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. Each of the clutches and the brakes are located within specific areas defined by the planetary gear sets and the housing walls.Type: GrantFiled: March 17, 2009Date of Patent: June 19, 2012Assignee: GM Global Technology Operations LLCInventors: Clinton E. Carey, Scott H. Wittkopp, James M. Hart, Andrew W. Phillips
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Patent number: 8197378Abstract: A front wheel drive 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.Type: GrantFiled: November 19, 2008Date of Patent: June 12, 2012Assignee: GM Global Technology Operations LLCInventors: Clinton E. Carey, Scott H. Wittkopp, James M. Hart, Andrew W. Phillips
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Patent number: 8192320Abstract: A front wheel drive 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 a brake arranged within a transmission housing.Type: GrantFiled: January 27, 2009Date of Patent: June 5, 2012Assignee: GM Global Technology Operations LLCInventors: Clinton E. Carey, Scott H. Wittkopp, James M. Hart, Andrew W. Phillips
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Patent number: 8192321Abstract: An automatic transmission includes 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 first, second and third members. The torque transmitting devices may be either clutches or brakes.Type: GrantFiled: March 9, 2011Date of Patent: June 5, 2012Assignee: GM Global Technology Operations LLCInventors: James M. Hart, Andrew W. Phillips, Scott H. Wittkopp, Clinton E. Carey, Madhusudan Raghavan
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Patent number: 8187138Abstract: A front wheel drive 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.Type: GrantFiled: December 1, 2008Date of Patent: May 29, 2012Assignee: GM Global Technology Operations LLCInventors: Clinton E. Carey, Scott H. Wittkopp, James M. Hart, Andrew W. Phillips
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Patent number: 8177676Abstract: A front wheel drive transmission is provided having a transmission input member, a transmission 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 a brake arranged within a transmission housing.Type: GrantFiled: February 6, 2009Date of Patent: May 15, 2012Assignee: GM Global Technology Operations LLCInventors: Clinton E. Carey, Scott H. Wittkopp, James M. Hart, Andrew W. Phillips
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Patent number: 8167767Abstract: A front wheel drive transmission is provided having a transmission input member, a transmission 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 a brake arranged within a transmission housing.Type: GrantFiled: December 11, 2008Date of Patent: May 1, 2012Assignee: GM Global Technology Operations LLCInventors: Clinton E. Carey, Scott H. Wittkopp, James M. Hart, Andrew W. Phillips
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Patent number: 8157699Abstract: An eight speed automatic transmission is provided having an input member, an output member, four planetary gear sets and five torque transmitting devices. Three of the planetary gear sets are simple and one planetary gear set is compound. Each of the plurality of planetary gear sets has first, second and third members: a sun gear, a ring gear and a planet carrier having a plurality of planet gears rotatably disposed thereon. Three of the torque transmitting devices are clutches and two of the devices are brakes. Eight embodiments of the transmission having different arrangements of the planetary gear sets, clutches and brakes are disclosed.Type: GrantFiled: June 15, 2011Date of Patent: April 17, 2012Assignee: GM Global Technology Operations LLCInventors: Clinton E. Carey, James M. Hart, Andrew W. Phillips, Scott H. Wittkopp
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Patent number: 8123650Abstract: A front wheel drive 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.Type: GrantFiled: November 19, 2008Date of Patent: February 28, 2012Assignee: GM Global Technology Operations LLCInventors: Clinton E. Carey, Scott H. Wittkopp, James M. Hart, Andrew W. Phillips
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Patent number: 8123651Abstract: A front wheel drive 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.Type: GrantFiled: November 26, 2008Date of Patent: February 28, 2012Assignee: GM Global Technology Operations LLCInventors: Clinton E. Carey, Scott H. Wittkopp, James M. Hart, Andrew W. Phillips
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Patent number: 8123652Abstract: A front wheel drive 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.Type: GrantFiled: November 26, 2008Date of Patent: February 28, 2012Assignee: GM Global Technology Operations LLCInventors: Clinton E. Carey, Scott H. Wittkopp, James M. Hart, Andrew W. Phillips
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Patent number: 8118700Abstract: A front wheel drive 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.Type: GrantFiled: November 12, 2008Date of Patent: February 21, 2012Assignee: GM Global Technology Operations LLCInventors: Clinton E. Carey, Scott H. Wittkopp, James M. Hart, Andrew W. Phillips
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Patent number: 8096915Abstract: A transmission of the present invention has 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 first, second and third members. The torque transmitting devices may include clutches and brakes. The torque transmitting devices are selectively engageable in combinations of at least three to establish at least ten forward speed ratios and at least one reverse speed ratio.Type: GrantFiled: February 24, 2009Date of Patent: January 17, 2012Assignee: GM Global Technology Operations LLCInventors: Scott H. Wittkopp, Andrew W. Phillips, James M. Hart, Clinton E. Carey
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Patent number: 8092336Abstract: A transmission is disclosed having an input member, an output member, a plurality of planetary gear sets, a plurality of interconnecting members and a plurality of torque-transmitting mechanisms. The plurality of planetary gear sets has first, second and third members. The input member is continuously interconnected with a member of the planetary gear sets. The output member is continuously interconnected with another member of the planetary gear sets. At least eight forward speeds and one reverse speed are produced by the selective engagement of the five torque-transmitting mechanisms.Type: GrantFiled: April 6, 2011Date of Patent: January 10, 2012Assignee: GM Global Technology Operations LLCInventors: James M. Hart, James B. Borgerson, Scott H. Wittkopp, Andrew W. Phillips, Clinton E. Carey, Madhusudan Raghavan
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Patent number: 8088033Abstract: A transmission having gearsets (P1-P4), shafts (1-8) and shifting elements (03, 04, 05, 48, 67, 78). Shaft (1) couples an input and carrier of gearset (P1), shaft (2) couples the output and carriers of gearsets (P3, P4), shaft (3) couples the ring gear of gearset (P2) and the sun gear of gearset (P1), shaft (4) couples the ring gear of gearset (P3) and the sun gear of gearset (P4), shaft (5) couples the ring gear of gearset (P4), shaft (6) couples the sun gear of gearset (P2) and the ring gear of gearset (P1), shaft (7) is connected to the sun gear of gearset (P3), and shaft (8) is connected to the carrier of gearset (P2). Shafts (3, 4 and 5) can each engage housing (G) by way of respective brakes (03, 04, 05), clutches (48; 67; 78) can couple, respectively, shafts (4, 8; 6, 7; 7, 8).Type: GrantFiled: December 6, 2007Date of Patent: January 3, 2012Assignee: ZF Friedrichshafen AGInventors: Ralf Boss, Gerhard Gumpoltsberger, Hans-Peter Freudenreich
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Patent number: 8083631Abstract: A planetary gear type gearbox includes a front-stage transmission section and rear-stage transmission section. The front-stage transmission section is for transmitting power from an input shaft to an intermediate shaft. The front-stage transmission section includes first, second and third clutches, two sets of planetary gear trains axially adjoining to each other. The first planetary gear train includes a sun gear, a carrier, a ring gear and planet gears. The second planetary gear train includes a sun gear, a carrier, a ring gear and two sets of planet gears. In the activation of second and third clutches, power is inputted into the carrier from the input shaft and is then outputted from the ring gear of the first planetary gear train.Type: GrantFiled: August 27, 2008Date of Patent: December 27, 2011Assignee: Komatsu Ltd.Inventor: Masaki Shiohara