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公开(公告)号：US11078967B2
公开(公告)日：2021-08-03
申请号：US16780958
申请日：2020-02-04
IPC分类号： F16D21/04 , F16D48/06 , F16H3/091 , F16D41/14 , F16H63/30 , F16H3/08 , F16D11/10 , F16H63/18
摘要： A vehicle transmission includes a shaft; speed-changing gears; switching mechanisms; and a shifting mechanism. The shifting mechanism is provided with a double-meshing preventing mechanism configured to switch between a one-way state in which the switching mechanisms are hindered from moving in a downshift direction and allowed to move in an upshift direction and a free state in which the switching mechanisms are allowed to move in both the downshift direction and the upshift direction.
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公开(公告)号：US10920877B2
公开(公告)日：2021-02-16
申请号：US15795598
申请日：2017-10-27
发明人： Shinichi Takeuchi , Akihiko Ichikawa , Tomohiro Yoshimura , Tomomitsu Terakawa , Jun Yabuta , Klemens Pollmeier , Lars van Leeuwen , Andree Miller , Patrizio Agostinelli
摘要： A control apparatus for a vehicular transmission including at least one dog clutch each having a first dog member mounted on a first shaft such that the first dog member is rotated together with the first shaft, and at least one second dog member each mounted to be axially adjacent to the first dog member and rotatable relative to the first shaft, first gears each mounted to be rotatable relative to the first shaft and provided with the second dog member, second gear which are mounted such that the second gears are rotated together with a second shaft parallel to the first shaft, and which mesh with the respective first gears, and a shifting mechanism for selectively placing each dog clutch in an engaged or released state. The control apparatus includes: a first calculating portion for detecting to a rotary angular position of the first shaft, and calculating a rotary angular position of the first dog member on the basis of the detected rotary angular position of the first shaft; a second calculating portion for detecting a rotary angular position of the second shaft, and calculating a rotary angular position of each second dog member on the basis of the detected rotary angular position of the second shaft; and an engagement control portion for controlling the shifting mechanism on the basis of the rotary angular positions of the first and second dog members, for engagement of the first and second dog members with each other.
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公开(公告)号：US11346409B2
公开(公告)日：2022-05-31
申请号：US17362118
申请日：2021-06-29
IPC分类号： F16D48/06 , F16D21/04 , F16H3/091 , F16D41/14 , F16H63/30 , H04L41/0604 , H04L41/0631 , H04L41/0816 , H04L45/48 , H04L61/5014 , F16H3/08 , F16D11/10 , F16H63/18
摘要： A vehicle transmission includes a shaft; speed-changing gears; switching mechanisms; and a shifting mechanism. The shifting mechanism is provided with a double-meshing preventing mechanism configured to switch between a one-way state in which the switching mechanisms are hindered from moving in a downshift direction and allowed to move in an upshift direction and a free state in which the switching mechanisms are allowed to move in both the downshift direction and the upshift direction.
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公开(公告)号：US10995851B2
公开(公告)日：2021-05-04
申请号：US16695257
申请日：2019-11-26
摘要： A gear change control device according to an embodiment includes a detection unit configured to detect the gear stage of a transmission and measure the input rotation rate of the transmission and the rotation rate of an engine and a controller configured to decrease the torque of a clutch to a second reference value from a first reference value when a first time elapses from a time point at which the rotation rate of the engine and the input rotation rate of the transmission become different from each other due to a gear change from a certain gear stage to a gear stage one or a plurality of stages higher than the certain gear stage that is performed by the transmission.
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