Transmission Includes Three Relatively Rotatable Sun Gears Patents (Class 475/275)
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Patent number: 8777798Abstract: 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 first, second and third members. The torque transmitting devices include clutches and brakes.Type: GrantFiled: October 1, 2013Date of Patent: July 15, 2014Assignee: GM Global Technology Operations, LLC.Inventors: James B. Borgerson, James M. Hart, Edward W. Mellet
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Patent number: 8764602Abstract: A planetary gear train of an automatic transmission may include a first planetary gear set including a first ring gear directly connected to a first shaft, a first planet carrier, and a first sun gear, a second planetary gear set disposed on a second shaft and including a second sun gear receiving an inverse rotation speed from the first planet carrier, a second ring gear selectively connected to the second shaft, and a second planet carrier, a third planetary gear set including a third sun gear directly connected to the second shaft, a third ring gear selectively connected to the first sun gear, and a third planet carrier directly connected to the second planet carrier and directly connected to an output gear, three transfer gears interposed between rotation elements, and five frictional elements selectively interconnecting the rotation elements or selectively connecting the rotation elements to a transmission housing.Type: GrantFiled: December 31, 2012Date of Patent: July 1, 2014Assignee: Hyundai Motor CompanyInventors: Myonghoon Noh, Hyu Tae Shim, Kangsoo Seo, Jae Chang Kook, Chang Wook Lee, Jongsool Park
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Publication number: 20140179487Abstract: A transmission gearing arrangement includes four simple planetary gear sets, three brakes, and four rotating clutches. The brakes and clutches may be engaged in combinations of three to establish at least ten forward transmission ratios and at least three reverse transmission ratios. The lowest forward transmission ratio and lowest reverse transmission ratio may be used to implement a low range mode, obviating the need for a two speed transfer case.Type: ApplicationFiled: December 21, 2012Publication date: June 26, 2014Applicant: Ford Global Technologies, LLCInventors: Steven Gerald Thomas, Donald Edward Hoffman, Gregory Daniel Goleski
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Patent number: 8758185Abstract: A transmission is provided having an input member, an output member, a planetary gear set assembly, two 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 and the planetary gear set assembly includes first, second, third and fourth members. The torque transmitting devices include clutches and brakes actuatable in combinations of two to establish a plurality of forward gear ratios and one reverse gear ratio.Type: GrantFiled: January 23, 2013Date of Patent: June 24, 2014Assignee: GM Global Technology Operations, LLCInventors: Edward W. Mellet, James M. Hart
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Publication number: 20140141926Abstract: A transmission is provided having a housing, a plurality of planetary gear sets, a structural member, a sprocket member, an annular drum, a band, and an actuator. The sprocket member is rotationally supported by the structural member. The annular drum is adjacent the structural member and is continuously rotationally coupled with a member of the one of the plurality of planetary gear sets. The band circumscribes the annular drum and includes at least a first position and a second position. In the first position the band is substantially separated from the drum and in the second position the band contacts the drum. The actuator selectively positions the band between at least the first position and the second position to transfer torque between the structural member and the annular drum.Type: ApplicationFiled: November 19, 2012Publication date: May 22, 2014Applicant: GM Global Technology Operations LLCInventors: James M. Hart, Daryl A. Wilton, Edward W. Mellet, Elizabeth I. Wooden
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Publication number: 20140141925Abstract: A transmission includes an input member, an output member, a set of four planetary gear sets each having first, second, and third members, a plurality of torque transmitting mechanisms each selectively engageable to interconnect at least one of the first, second, and third members with at least one other of the first, second, third members and a stationary member, and a synchronizer assembly that selectively connects and disconnects one member of one of the planetary gear sets.Type: ApplicationFiled: November 19, 2012Publication date: May 22, 2014Applicant: GM Global Technology Operations LLCInventors: James M. Hart, Daryl A. Wilton, Clinton E. Carey
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Publication number: 20140141924Abstract: 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 first, second and third members. The torque transmitting devices include clutches and brakes actuatable in combinations of two to establish a plurality of forward gear ratios and one reverse gear ratio.Type: ApplicationFiled: January 28, 2014Publication date: May 22, 2014Applicant: GM Global Technology Operations LLCInventor: Tejinder Singh
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Publication number: 20140128199Abstract: 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 include clutches and brakes. The torque transmitting devices are each selectively engageable in combinations of at least two to establish a plurality forward speed ratios and at least one reverse speed ratio.Type: ApplicationFiled: November 6, 2012Publication date: May 8, 2014Applicant: GM Global Technology Operations LLCInventor: Dan Coffey
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Publication number: 20140128201Abstract: A transmission is provided having an input member, an output member, at least 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 actuatable in combinations of three to establish a plurality of forward gear ratios and at least one reverse gear ratio.Type: ApplicationFiled: October 30, 2013Publication date: May 8, 2014Applicant: GM Global Technology Operations LLCInventors: Edward W. Mellet, James M. Hart, Andrew W. Phillips
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Publication number: 20140128198Abstract: 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 include clutches and brakes. The torque transmitting devices are each selectively engageable in combinations of at least three to establish a plurality forward speed ratios and at least one reverse speed ratio.Type: ApplicationFiled: November 6, 2012Publication date: May 8, 2014Applicant: GM Global Technology Operations LLCInventor: Dan Coffey
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Publication number: 20140128200Abstract: A transmission has an input member, an output member, at least 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 include clutches and brakes actuatable in combinations of three to establish a plurality of forward gear ratios and one reverse gear ratio.Type: ApplicationFiled: November 7, 2012Publication date: May 8, 2014Applicant: GM Global Technology Operations LLCInventors: Edward W. Mellet, James M. Hart, Andrew W. Phillips
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Patent number: 8715128Abstract: 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 a sun gear, a carrier member supporting a plurality of planet pinion gears and a ring gear member. The torque transmitting devices may include clutches and brakes. The torque transmitting devices are selectively engageable in combinations of at least three to establish a plurality forward speed ratios and at least one reverse speed ratio.Type: GrantFiled: December 1, 2011Date of Patent: May 6, 2014Assignee: GM Global Technology OperationsInventors: Gregory W. Kempf, Douglas Scott Burchett
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Patent number: 8708860Abstract: A transmission includes 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: February 18, 2013Date of Patent: April 29, 2014Assignee: GM Global Technology Operations LLCInventors: James M. Hart, James B. Borgerson
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Patent number: 8708861Abstract: An electric power tool includes a motor; a speed reducer for transferring a rotational power of the motor at a reduced speed; and a reduction ratio changing unit for changing a reduction ratio of the speed reducer. The speed reduction mechanism includes an axially slidable changeover member and a gear member, the changeover member being engaged with or disengaged from the gear member depending on an axial slide position thereof. The reduction ratio changing unit includes a shift actuator for axially sliding the changeover member, a driving state detector for detecting a driving state of the motor, a slide position detector for detecting a slide position of the changeover member and a controller for driving the shift actuator and for temporarily decreasing or increasing a rotational power of the motor depending on detection results of the driving state detector and the slide position detector, respectively.Type: GrantFiled: June 22, 2011Date of Patent: April 29, 2014Assignee: Panasonic CorporationInventors: Kenichirou Inagaki, Yutaka Yamada, Tadashi Arimura, Masatoshi Atsumi, Hiroyuki Kaizo
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Patent number: 8708859Abstract: A transmission 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: January 31, 2013Date of Patent: April 29, 2014Assignee: GM Global Technology Operations LLCInventors: Andrew W. Phillips, Scott H. Wittkopp, James M. Hart, Clinton E. Carey
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Patent number: 8712655Abstract: A control system is provided for shifting an automatic transmission of a motor vehicle, which includes, but is not limited to a speed controller, and an electronic control device. Through the electronic control device the parameters vehicle speed, position of the speed controller and acceleration of the speed controller can be captured. Through the electronic control device and through comparison of the captured values of the parameters with predetermined reference values a shifting time is determined for shifting the automatic transmission.Type: GrantFiled: September 21, 2012Date of Patent: April 29, 2014Assignee: GM Global Technology Operations LLCInventors: Martin Gentile, Gernot Becker
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Patent number: 8702554Abstract: The multi-ratio transmission with forward and reverse gears, gearsets (P1, P2, P3, P4), shafts and shifting elements. A sun gear of the gearset (P1) directly couples an input shaft, which couples, via clutch (14), shaft (4) and, via clutch (17), shaft (7). Shaft (4) couples the carrier of gearset (P2) and the ring gear of gearset (P3) and couples, via brake (04), a housing. Shaft (7) couples the sun gear of gearset (P4) and, via clutch (78), shaft (8), which couples the sun gears of gearsets (P3, P2). Shaft (3) couples the carrier of gearset (P1) and the ring gear of gearset (P2) and, via brake (03), the housing. Shaft (5) couples the ring gear of gearset (P1) and, via brake (05), the housing. Shaft (6) couples the carrier of gearset (P3) and the ring gear of gearset (P4). The output shaft couples the carrier of gearset (P4).Type: GrantFiled: August 11, 2010Date of Patent: April 22, 2014Assignee: ZF Friedrichshafen AGInventors: Gerhard Gumpoltsberger, Christian Sibla, Stefan Beck, Josef Haupt, Gert Bauknecht, Peter Ziemer
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Publication number: 20140106923Abstract: 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 first, second and third members. The torque transmitting devices include clutches and brakes.Type: ApplicationFiled: October 1, 2013Publication date: April 17, 2014Applicant: GM Global Technology Operations LLCInventors: James B. Borgerson, James M. Hart, Edward W. Mellet
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Publication number: 20140106925Abstract: A transmission is provided having an input member, an output member, at least 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 include clutches and brakes actuatable in different combinations to establish a plurality of forward gear ratios and at least one reverse gear ratio.Type: ApplicationFiled: October 1, 2013Publication date: April 17, 2014Applicant: GM Global Technology Operations LLCInventors: Edward W. Mellet, Andrew W. Phillips, James M. Hart
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Publication number: 20140106924Abstract: 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. The torque transmitting devices include clutches and brakes including a selectable one-way clutch actuatable in combinations of two to establish a plurality of forward gear ratios and one reverse gear ratio.Type: ApplicationFiled: August 15, 2013Publication date: April 17, 2014Applicant: GM Global Technology Operations LLCInventors: Kent H. Kienzle, Dan Coffey, David M. Zini, John A. Diemer, Pete R. Garcia, Tejinder Singh, Boris Burgman
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Publication number: 20140100073Abstract: A transmission is provided having an input member, an output member, at least 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 include clutches and brakes actuatable in combinations of three to establish a plurality of forward gear ratios and at least one reverse gear ratio.Type: ApplicationFiled: September 27, 2013Publication date: April 10, 2014Applicant: GM Global Technology Operations LLCInventor: Chi Teck Lee
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Publication number: 20140087911Abstract: A transmission is provided having an input member, an output member, at least 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 include clutches and brakes actuatable in combinations of two to establish a plurality of forward gear ratios and one reverse gear ratio. The torque transmitting devices include a selectable one-way clutch.Type: ApplicationFiled: September 26, 2012Publication date: March 27, 2014Applicant: GM Global Technology Operations LLCInventors: Larry D. Diemer, PETE R. GARCIA
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Patent number: 8678972Abstract: 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 each selectively engageable in combinations of at least three to establish at least nine forward speed ratios and at least one reverse speed ratio.Type: GrantFiled: October 3, 2011Date of Patent: March 25, 2014Assignee: GM Global Technology Operations LLCInventors: Scott H. Wittkopp, James M. Hart
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Publication number: 20140080657Abstract: A family of transmissions has four planetary gear sets, five controllable clutches and brake, and a passive one way brake. Selective engagement of the brakes and clutches in combinations of three produces eight forward speed ratios and one reverse speed ratio. The passive one way brake is engaged in the first forward speed ratio and overruns in the second through fifth forward speed ratios.Type: ApplicationFiled: September 14, 2012Publication date: March 20, 2014Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Gregory Daniel Goleski, Steven Gerald Thomas, Reid Alan Baldwin
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Publication number: 20140080656Abstract: A transmission gearing arrangement includes four simple planetary gear sets, a range selection clutch, and five other clutches including one brake. The transmission is operated in high range by engaging the range selection clutch and in low range by disengaging the range selection clutch. In high range, the transmission produces eight forward speed ratios and one reverse speed ratio by selective engagement of various combinations of three of the five other clutches. In low range, the transmission produces five forward speed ratios by selective engagement of various combinations of two of the other five clutches. The transmission can shift from the fourth low range ratio to the third high range ratio while the vehicle is in motion.Type: ApplicationFiled: September 14, 2012Publication date: March 20, 2014Applicant: FORD GLOBAL TECHNOLOGIESInventor: Robert Scott Lippert
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Publication number: 20140057753Abstract: 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 include clutches and brakes. The torque transmitting devices are each selectively engageable in combinations of at least three to establish a plurality forward speed ratios and at least one reverse speed ratio.Type: ApplicationFiled: August 22, 2012Publication date: February 27, 2014Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: James M. Hart, Andrew W. Phillips, Scott H. Wittkopp
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Publication number: 20140057751Abstract: A transmission is provided having an input member, an output member, at least 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 include clutches and brakes actuatable in combinations of three to establish a plurality of forward gear ratios and at least one reverse gear ratio.Type: ApplicationFiled: August 15, 2013Publication date: February 27, 2014Inventors: Edward W. Mellet, James M. Hart, Andrew W. Phillips
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Patent number: 8657718Abstract: An automatic transmission includes an input shaft, a first planetary gear set, a second planetary gear set, a third planetary gear set, a fourth planetary gear set, and an engagement mechanism. The engagement mechanism includes first to seventh engagement devices. Nine or more forward transmission gear ratios are established by setting each of at least three engagement devices among the first to seventh engagement devices in an engagement mode.Type: GrantFiled: March 4, 2013Date of Patent: February 25, 2014Assignee: Honda Motor Co., Ltd.Inventors: Kohei Iizuka, Soichi Sugino
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Patent number: 8651995Abstract: A powertrain of an automatic transmission includes a first planetary gear set having first, second, and third operating members, a second planetary gear set having fourth, fifth, and sixth operating members, and third planetary gear set having seventh, eighth, and ninth operating members, the fourth and seventh operating members being fixedly interconnected, the fifth and ninth operating members being fixedly interconnected, the third and eighth operating members being selectively interconnected, the second and seventh operating members being selectively interconnected, the second and sixth operating members being selectively interconnected, wherein a transmission case is fixedly connected to the first operating member and selectively connected to the seventh and eighth operating members, an input shaft is fixedly connected to the third operating member and selectively connected to the seventh operating member, and an output shaft is fixedly connected to the ninth operating member.Type: GrantFiled: September 13, 2012Date of Patent: February 18, 2014Assignee: Hyundai Motor CompanyInventors: Wookjin Jang, Kun Soo Jung
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Publication number: 20140045640Abstract: A family of transmission gearing arrangements produces nine forward and one reverse speed ratio by selective engagement of various combinations of three clutches or brakes. Each transmission gearing arrangement includes a front shiftable gearing arrangement configured to establish a variety of speed ratios between an intermediate shaft and an input shaft. These speed ratios include a reverse speed ratio, a zero speed ratio, two underdrive ratios, and a direct ratio. Each transmission also includes a rear shiftable gearing arrangement configured to selectively establish particular speed relationships among the input shaft, the intermediate shaft, and an output shaft. Engagement of a clutch in the rear shiftable gearing arrangement establishes an underdrive ratio between the output shaft and the intermediate shaft.Type: ApplicationFiled: August 8, 2012Publication date: February 13, 2014Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Gregory Daniel Goleski, Steven Gerald Thomas
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Publication number: 20140045641Abstract: A transmission gearing arrangement produces at least nine forward speed ratios and one reverse speed ratio by selective engagement of three shift elements in various combinations. One embodiment includes four simple planetary gear sets, four clutches, and two brakes. Another embodiment includes two axis transfer gear pairs, three simple planetary gear sets, four clutches, and two brakes.Type: ApplicationFiled: March 28, 2013Publication date: February 13, 2014Applicant: Ford Global Technologies, LLCInventors: Gregory Daniel Goleski, Donald Edward Hoffman
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Patent number: 8647227Abstract: A planetary gear train of an automatic transmission includes an input shaft, an output shaft, a first planetary gear set outputting a negative rotation speed by using a rotation speed input from the input shaft, a second planetary gear set converting the negative rotation speed into a positive rotation speed, a compound planetary gear set changing the rotation speed selectively input from the input shaft, the negative rotation speed and the positive rotation speed into nine forward speeds and one reverse speed, eight rotational members, and six friction members, and brakes interposed between a selected rotational member among the rotational members and a transmission housing.Type: GrantFiled: August 17, 2012Date of Patent: February 11, 2014Assignee: Hyundai Motor CompanyInventors: Jongsool Park, Tae Seok Seo, Hyukjun Lee
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Publication number: 20140038768Abstract: A compact five-speed transmission planetary gear train includes a first, second, third, and fourth planetary gear sets between an input and an output as well as first, second, and third brakes and first, second and third clutches. The first, second and third brakes and first, second and third clutches are selectively actuatable to provide five different forward speeds and a four different reverse speeds between the input and the output.Type: ApplicationFiled: August 6, 2012Publication date: February 6, 2014Applicant: CATERPILLAR, INC.Inventors: Thomas D. Koch, Justin Floro, Michael Gross, Kevin G. Meyer, Kevin J. Knox, James Rice, James Elmer Winzeler, Peter H. Hodges, Perry G. Cruce
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Publication number: 20140038766Abstract: A compact five-speed transmission planetary gear train includes a first, second, third, fourth and fifth planetary gear sets between an input and an output as well as first, second, third and fourth brakes and first and second clutches. The first, second, third and fourth brakes and first and second clutches are selectively actuatable to provide five different forward speeds and a plurality of different reverse speeds between the input and the output.Type: ApplicationFiled: August 6, 2012Publication date: February 6, 2014Applicant: Caterpillar, Inc.Inventors: Thomas D. Koch, Justin Floro, Michael Gross, Kevin G. Meyer, Kevin J. Knox, James Rice, James Elmer Winzeler, Peter H. Hodges, Perry G. Cruce
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Publication number: 20140038767Abstract: A compact five-speed transmission planetary gear train includes a first, second, third, and fourth planetary gear sets between an input and an output as well as first, second, and third brakes and first, second and third clutches. The first, second, third and fourth brakes and first and second clutches are selectively actuatable to provide five different forward speeds and a four different reverse speeds between the input and the output. The compact transmission also includes a first brake, second brake, third brake, fourth brake, first clutch, and second clutch associated with the planetary gear train, the first brake, second brake, third brake, fourth brake, first clutch, and second clutch being configured such that setting each forward and reverse speed of the compact transmission is accomplished via actuation of two of the first brake, second brake, third brake, fourth brake, first clutch, and second clutch.Type: ApplicationFiled: August 6, 2012Publication date: February 6, 2014Applicant: CATERPILLAR, INC.Inventors: Thomas D. Koch, Justin Floro, Michael Gross, Kevin G. Meyer, Kevin J. Knox, James Rice, James Elmer Winzeler, Peter H. Hodges, Perry G. Cruce
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Publication number: 20140038764Abstract: A transmission gearing arrangements produces up to ten forward and one reverse speed ratios by selective engagement of various combinations of four shift elements. Each disclosed transmission includes four planetary gear sets and at least six shift elements. One of the shift elements may be a dog clutch. Optional passive one way brakes simplify the control.Type: ApplicationFiled: October 14, 2013Publication date: February 6, 2014Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventor: Gregory Daniel Goleski
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Patent number: 8636617Abstract: 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 first, second and third members. The torque transmitting devices include clutches and brakes actuatable in combinations of two to establish a plurality of forward gear ratios and one reverse gear ratio.Type: GrantFiled: June 4, 2012Date of Patent: January 28, 2014Assignee: GM Global Technology Operations LLCInventor: Tejinder Singh
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Publication number: 20140024488Abstract: A transmission gearing arrangements produces up to ten forward and one reverse speed ratios by selective engagement of various combinations of four shift elements. Each disclosed transmission includes four planetary gear sets and at least six shift elements. One of the shift elements may be a dog clutch. Optional passive one way brakes simplify the control.Type: ApplicationFiled: September 27, 2013Publication date: January 23, 2014Inventors: Gregory Daniel Goleski, Reid Alan Baldwin
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Publication number: 20140018204Abstract: A transmission is provided having an input member, an output member, at least four planetary gear sets, coupling members, and torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and brakes actuatable in combinations of two to establish at least eleven forward gear ratios and one reverse gear ratio. A clutch assembly for use in an automatic transmission is provided that includes an apply piston and a stationary fluid supply member. The apply piston is configured to rotate during at least one gear speed of the automatic transmission. The stationary fluid supply member has portions forming a channel in the stationary fluid supply member and defining an outlet end of the channel. The stationary fluid supply member is configured to supply fluid to the apply piston through the outlet end of the channel.Type: ApplicationFiled: July 11, 2012Publication date: January 16, 2014Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Edward W. Mellet, Daryl A. Wilton, James M. Hart
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Publication number: 20140011626Abstract: A transmission includes an input member, an output member, a plurality of torque-transmitting mechanisms that 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, and one or more latches associated with one or more of the torque-transmitting mechanisms. The one or more latches engages the respective torque-transmitting mechanisms during or prior to a start event.Type: ApplicationFiled: September 10, 2013Publication date: January 9, 2014Applicant: GM Global Technology Operations LLCInventors: Casie M. Bockenstette, Robert L. Moses, Carlos E. Marin, Zhen J. Zhang
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Publication number: 20140004990Abstract: A compact five-speed transmission planetary hear train includes a first, second, third, and fourth planetary gear sets between an input and an output as well as first, second, and third brakes and first, second and third clutches. The first, second and third brakes and first, second and third clutches are selectively actuatable to provide five different forward speeds and a four different reverse speeds between the input and the output.Type: ApplicationFiled: July 2, 2012Publication date: January 2, 2014Applicant: CATERPILLAR, INC.Inventors: Thomas Koch, Justin Floro, Michael Gross, Kevin Meyer, Kevin Knox, James Rice, James Elmer Winzeler, Peter Hodges, Perry Cruce
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Publication number: 20140004991Abstract: A compact five-speed transmission planetary gear train includes a first, second, third, fourth and fifth planetary gear sets between an input and an output as well as first, second, third and fourth brakes and first and second clutches. The first, second, third and fourth brakes and first and second clutches are selectively actuatable to provide five different forward speeds and a plurality of different reverse speeds between the input and the output.Type: ApplicationFiled: July 2, 2012Publication date: January 2, 2014Applicant: CATERPILLAR, INC.Inventors: Thomas Koch, Justin Floro, Michael Gross, Kevin Meyer, Kevin Knox, James Rice, James Elmer Winzeler, Peter Hodges, Perry Cruce
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Publication number: 20130345014Abstract: A transmission is provided having an input member, an output member, at least 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 include clutches and brakes actuatable in combinations of three to establish a plurality of forward gear ratios and at least one reverse gear ratio.Type: ApplicationFiled: June 14, 2013Publication date: December 26, 2013Inventors: Edward W. Mellet, James M. Hart
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Publication number: 20130337963Abstract: A transmission is provided having an input member, an output member, four planetary gear sets, a four coupling members and a six torque-transmitting mechanisms. Further, a hydraulic fluid control circuit is provided for controlling the operation of the plurality of torque-transmitting devices. The hydraulic fluid control circuit receives pressurized hydraulic fluid from an off-axis hydraulic fluid pump and has a plurality of fluid passages disposed in the transmission house, input member and other coupling members.Type: ApplicationFiled: June 12, 2013Publication date: December 19, 2013Inventors: Edward W. Mellet, James M. Hart, Daryl A. Wilton, Vijay A. Neelakantan
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Publication number: 20130324346Abstract: 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 first, second and third members. The torque transmitting devices include clutches and brakes actuatable in combinations of two to establish a plurality of forward gear ratios and one reverse gear ratio.Type: ApplicationFiled: May 9, 2013Publication date: December 5, 2013Applicant: GM Global Technology Operations LLCInventors: Pete R. Garcia, Tejinder Singh, John A. Diemer, Douglas John Dwenger
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Publication number: 20130324349Abstract: A power transmission includes an input; an output; a first gearset including an output having a lower speed than a speed of the input; a second gearset having first, second, and third rotating elements; a second gearset having fourth, fifth, sixth, and seventh rotating elements; four clutches; and two brakes. The brakes and clutches are engaged in combinations of three to produce up to eleven forward speed ratios and two reverse speed ratios.Type: ApplicationFiled: May 29, 2012Publication date: December 5, 2013Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Donald W. Hoffman, Reid A. Baldwin
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Patent number: 8597151Abstract: A planetary gear train of an automatic transmission includes: a first shaft receiving engine torque; a second shaft parallel with the first shaft and selectively inversely receiving rotation of the first shaft; a first planetary gear set disposed on the first shaft and including a first, second and a third rotation paths; a compound planetary gear set formed by combining a second planetary gear set and a third planetary gear set, and including a fourth, fifth, sixth and seventh rotation paths; three transfer gears interposed between the rotation shafts, and configured to transfer an inverse rotation speed to the second shaft and the rotation paths of the compound planetary gear set; and five frictional elements interconnecting the rotation paths or selectively connecting the rotation paths to a transmission housing.Type: GrantFiled: December 27, 2012Date of Patent: December 3, 2013Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Myonghoon Noh, Kangsoo Seo, Jae Chang Kook, Hyu Tae Shim
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Publication number: 20130316870Abstract: A family of transmission gearing arrangements produces up to ten forward and one reverse speed ratios by selective engagement of various combinations of three or four shift elements. Each disclosed transmission includes four planetary gear sets and six shift elements. Two of the shift elements can be brakes.Type: ApplicationFiled: April 3, 2013Publication date: November 28, 2013Applicant: Ford Global Technologies, LLCInventors: Gregory Daniel Goleski, Reid Alan Baldwin
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Publication number: 20130310211Abstract: A transmission is provided having an input member, an output member, at least 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 actuatable in combinations of two to establish at least ten forward gear ratios and one reverse gear ratio. At least one of the torque transmitting mechanisms includes a backing plate having an annular outlet for distributing cooling fluid.Type: ApplicationFiled: May 16, 2012Publication date: November 21, 2013Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Daryl A. Wilton, James M. Hart, Edward W. Mellet, James B. Borgerson
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Publication number: 20130310212Abstract: A transmission is provided having an input member, an output member, at least four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting mechanisms. Each of the planetary gear sets includes first, second and third members. The torque transmitting mechanisms include clutches and brakes actuatable in combinations of two to establish a plurality of forward gear ratios and one reverse gear ratio. An electromechanical rotating clutch assembly is provided that includes a rotor, an armature, and an electromagnetic coil. The electromagnetic coil is operable to selectively engage the rotor with the armature.Type: ApplicationFiled: May 18, 2012Publication date: November 21, 2013Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: James M. Hart, Daryl A. Wilton, Edward W. Mellet