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公开(公告)号：US20190219158A1
公开(公告)日：2019-07-18
申请号：US16250299
申请日：2019-01-17
发明人： Harald Stehle , Peter Schiele , Günther Maier
CPC分类号： F16H61/0403 , F16H3/66 , F16H61/0213 , F16H2200/0065 , F16H2200/2012 , F16H2200/2041 , F16H2200/2064 , F16H2200/2094
摘要： A gearbox (100) includes an input shaft (105) and a first and a second proportionally controllable shift element (A to F). The shift elements (A to F) are configured to control, by way of an open-loop system, engagement or disengagement of a gear ratio in the gearbox (100). A method (200) for the open-loop control of the gearbox (100) includes: determining a specified differential speed profile that is a profile of a difference between a rotational speed of the input shaft (105) and a synchronous speed of a gear ratio to be engaged; and determining a torque demand of a drive source connected to the input shaft (105) or determining a control profile for the one of the first and second shift elements (A to F) to be engaged in the gear ratio on the basis of the specified differential speed profile.
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公开(公告)号：US20190219157A1
公开(公告)日：2019-07-18
申请号：US16250258
申请日：2019-01-17
发明人： Harald Stehle , Peter Schiele , Günther Maier
IPC分类号： F16H61/02 , F16H61/00 , F16H61/686
CPC分类号： F16H61/0204 , F16H3/66 , F16H59/48 , F16H61/0021 , F16H61/686 , F16H2200/0065 , F16H2200/2012 , F16H2200/2041 , F16H2200/2064 , F16H2200/2094
摘要： A method (200) for open-loop control of a gearbox (100) that includes a first and a second proportionally controllable shift element (A-F) is provided. The method (200) includes disengaging the first shift element (A-F) of the gearbox (100) according to a first control profile and engaging the second shift element (A-F) of the gearbox (100) according to a second control profile. The first control profile comprises a variable portion (330) which is increased between a first point in time (t4), when a gradient (335) of the rotational speed of an input shaft of the gearbox (100) reaches a predetermined threshold value, and a second point in time (t5), when the gradient (335) flattens.
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公开(公告)号：US20190219156A1
公开(公告)日：2019-07-18
申请号：US16250108
申请日：2019-01-17
发明人： Harald Stehle , Peter Schiele , Günther Maier
IPC分类号： F16H61/02 , F16H61/686
CPC分类号： F16H61/0204 , F16H3/66 , F16H59/42 , F16H61/686 , F16H2200/0065 , F16H2200/2012 , F16H2200/2041 , F16H2200/2064 , F16H2200/2094
摘要： A method (200) for the open-loop control of a gearbox (100) that comprises an input shaft (105) and a first and a second proportionally controllable shift element (A-F) is provided. The method includes disengaging (215) the first shift element (A-F) according to a first control profile and engaging (220) the second shift element (A-F) according to a second control profile. The method also includes cyclically performing the following during the disengagement and the engagement: determining (230) a difference between the rotational speed of the input shaft (105) and a rotational speed which the input shaft (105) assumes when the second shift element (A-F) has been completely engaged; determining (230) a gradient of the difference; and adapting (230) the first control profile on the basis of the gradient.
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公开(公告)号：US20190128388A1
公开(公告)日：2019-05-02
申请号：US15832634
申请日：2017-12-05
发明人： Seong Wook HWANG , Seongwook Ji , Juhyeon Park , Wonmin Cho , Hyun Sik Kwon , llhan Yoo , Jae Chang Kook , Ki Tae Kim
IPC分类号： F16H3/66
CPC分类号： F16H3/666 , F16H3/66 , F16H2200/0069 , F16H2200/0078 , F16H2200/2012 , F16H2200/2015 , F16H2200/2046
摘要： A planetary gear train may include input and output shafts, first to fourth planetary gear sets respectively having first to third, fourth to sixth, seventh to ninth, and tenth to thirteenth elements, a first shaft connected to the second element and the input shaft, a second shaft connected to the eleventh element and the output shaft, a third shaft connected to the first and seventh elements, a fourth shaft connected to the fifth and twelfth elements, a fifth shaft connected to the eighth and tenth elements, a sixth shaft connected to the thirteenth element, and a plurality of shafts each selectively connecting a corresponding element to a transmission housing, the corresponding element being an element of the first, second and third planetary gear sets which is not interconnected.
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公开(公告)号：US20190120377A1
公开(公告)日：2019-04-25
申请号：US15789295
申请日：2017-10-20
发明人： Scott Joseph Gittins , Timothy Fedullo , Samuel Melville Glauber , Derek Kinch , Matthew Scott Malnar , Joseph Scott Slayton
CPC分类号： F16H63/3483 , F15B13/0402 , F16H3/66 , F16H63/3425 , F16H63/483 , F16H2200/0069 , F16H2200/2012 , F16H2200/2046 , F16K11/0704 , F16K11/0712
摘要： A park valve performs a multi-plexing function in which an out-of-park circuit is connected to line pressure when the valve is in an out-of-park position and is vented when the valve is in a park position. When particular clutches are released, the out-of-park circuit biases the park valve toward the out-of-park position. To initiate engagement of park, a controller commands a low line pressure, reducing the forces that bias the park valve toward the out-of-park position. Once the valve reaches an intermediate position in which the line pressure circuit is no longer fluidly connected to the out-of-park circuit, the controller commands an increase in line pressure, increasing the forces that bias the park valve toward the park position.
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公开(公告)号：US20190078649A1
公开(公告)日：2019-03-14
申请号：US15817570
申请日：2017-11-20
发明人： Hyun Sik Kwon , Seongwook Ji , Juhyeon Park , Ilhan Yoo , Seong Wook Hwang , Ki Tae Kim
IPC分类号： F16H3/66
CPC分类号： F16H3/66 , F16H2003/445 , F16H2200/0069 , F16H2200/2012 , F16H2200/2046
摘要： A planetary gear train includes input and output shafts, and first to fourth planetary gear sets respectively having first to third, fourth to sixth, seventh to ninth, and tenth to twelfth elements. A first shaft is connected to the third element and selectively connected to the input shaft, a second shaft is connected to the ninth element and selectively connected to the input shaft, a third shaft is connected to the eleventh element and the output shaft, a fourth shaft is connected to the first, fourth, and seventh elements, and a fifth shaft is connected to the second and tenth elements. A plurality of shafts each selectively connect a corresponding element to a transmission housing, the corresponding element being an element of the second, third, and fourth planetary gear sets that is not interconnected.
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公开(公告)号：US20180372214A1
公开(公告)日：2018-12-27
申请号：US15633927
申请日：2017-06-27
发明人： Hiral Jayantilal Haria , Yuji Fujii , Gregory Michael Pietron , Rohit Hippalgaonkar , Todd Mccullough
IPC分类号： F16H61/02
CPC分类号： F16H61/0204 , B60W10/115 , B60W30/19 , B60W2510/105 , F16H61/0437 , F16H61/686 , F16H2200/2012 , F16H2200/2046 , F16H2306/22 , F16H2306/44 , F16H2306/46 , F16H2306/50 , F16H2306/52 , Y10T477/6937
摘要： During a transmission upshift, a torque capacity of an off-going clutch is maintained at a non-zero state during the transition from the torque phase to the inertia phase and throughout a substantial portion of the inertia phase. This permits the inertia phase to be completed faster without an unacceptable increase in output torque during the torque phase. Monotonically reducing the off-going clutch torque and using feedback from an output torque sensor enable sufficiently precise control of the off-going clutch torque capacity during this interval.
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公开(公告)号：US20180306279A1
公开(公告)日：2018-10-25
申请号：US15788301
申请日：2017-10-19
发明人： Jae Chang KOOK , Hyun Sik KWON , Ki Tae KIM , Wonmin CHO , Seong Wook HWANG , Seongwook JI
IPC分类号： F16H3/66
CPC分类号： F16H3/66 , F16H2200/0069 , F16H2200/2012 , F16H2200/2048 , F16H2200/2097
摘要： A planetary gear train of an automatic transmission for a vehicle provides at least ten forward speeds and one reverse speed by combination of: first to fourth planetary gear sets respectively having first to third rotational elements, fourth to sixth rotational elements, seventh to ninth rotational elements, or tenth to twelfth rotational elements; first to ninth shafts; and multiple control elements including four clutches and three brakes. In particular, each of the tenth, eleventh, twelfth rotational elements is fixedly connected with a different shaft selected from the first, sixth, seventh and ninth shafts, and one clutch is fixedly connected with the ninth shaft.
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公开(公告)号：US20180283416A1
公开(公告)日：2018-10-04
申请号：US15939296
申请日：2018-03-29
发明人： Tomoaki MUKAI , Shunsuke YOSHIDA , Shogo KOBAYASHI
CPC分类号： F15B15/2861 , B60Y2300/424 , B60Y2400/427 , F15B15/1447 , F15B15/2807 , F15B15/2892 , F15B2211/7054 , F16D41/16 , F16H3/66 , F16H63/3483 , F16H2061/044 , F16H2200/0069 , F16H2200/2012 , F16H2200/2046 , F16H2200/2048 , F16H2200/2066 , F16H2200/2069 , F16H2200/2082
摘要： An actuator capable of preventing the inside of a cylinder from being scratched is provided. A two-way piston includes a cylinder having an opening, a piston, and a stroke sensor that detects a position of the piston. The stroke sensor includes a stay that extends from a portion exposed from the opening of the piston to the outside of the cylinder, a member to be detected that is attached to the stay, and a sensor that detects a position of the member to be detected. The piston including a fixing hole having a depth smaller than a diameter of the piston in the portion exposed from the opening. The stay is fixed by a bolt that is inserted into the fixing hole.
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公开(公告)号：US20180274635A1
公开(公告)日：2018-09-27
申请号：US15992694
申请日：2018-05-30
发明人： Wonmin CHO , Seong Wook HWANG , Hyun Sik KWON , Jae Chang KOOK , Seongwook JI
IPC分类号： F16H3/66
CPC分类号： F16H3/66 , F16H2200/0065 , F16H2200/2012 , F16H2200/2046 , F16H2200/2097
摘要： A planetary gear train of an automatic transmission for a vehicle may include an input shaft for receiving an engine torque, an output shaft for outputting a shifted torque, a first planetary gear set, a second planetary gear set, a third planetary gear set, a fourth planetary gear set, six control elements, a first connecting member directly connected with a transmission housing, a second connecting member selectively connectable with the transmission housing, a third connecting member selectively connectable with the input shaft, a fourth connecting member directly connected with the input shaft, a fifth connecting member selectively connectable with the transmission housing, a sixth connecting member selectively connectable with the input shaft, and selectively connectable with the transmission housing, a seventh connecting member directly connected with the output shaft, and an eighth connecting member selectively connectable with the input shaft.
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