公开(公告)号：US20240209921A1

公开(公告)日：2024-06-27

申请号：US18146263

申请日：2022-12-23

申请人： Dana Automotive Systems Group, LLC

发明人： Yashodhan KOTNIS ,  Durganand KULKARNI

IPC分类号： F16H9/16

CPC分类号： F16H9/16 ,  F16H2009/163

摘要： A line of transmissions is described having a first multi-stage reduction gearbox that includes a first stage (first reduction set) having a variable ratio belt drive with a first fixed ratio, and a second stage (second reduction set) having fixed gears; and a second multi-stage reduction gearbox including a first stage having the same variable ratio belt drive as the first multi-stage reduction gearbox but with a second fixed ratio different from the first, and a second stage having the same fixed gears as the second stage of the first multi-stage reduction gearbox.

公开(公告)号：US20230415558A1

公开(公告)日：2023-12-28

申请号：US18367952

申请日：2023-09-13

申请人： Polaris Industries Inc.

发明人： Andrew C. Schleif ,  Paul W. Barton ,  Ralph W. Lauzze, III ,  Robert C. Wilmot ,  Anthony J. Ripley ,  Brian R. Gillingham

IPC分类号： B60K5/02 ,  B60K17/06 ,  B60K17/22 ,  B60K17/00 ,  F02B37/00 ,  B60K13/04 ,  B60K5/04 ,  F16H9/16 ,  F02F7/00 ,  B60K13/02

CPC分类号： B60K5/02 ,  B60K17/06 ,  B60K17/22 ,  B60K17/00 ,  F02B37/00 ,  B60K13/04 ,  B60K5/04 ,  F16H9/16 ,  F02F7/0021 ,  B60K13/02

摘要： A vehicle shown herein is a side by side utility vehicle having a powertrain an engine with at least three cylinders, an intake and an exhaust, where the intake is forward of the engine and the exhaust is rearward of the engine. The vehicle may further or alternatively include an engine block configured to couple with various transmissions without alteration of the engine block itself.

公开(公告)号：US11808350B2

公开(公告)日：2023-11-07

申请号：US17960930

申请日：2022-10-06

申请人： YAMAHA HATSUDOKI KABUSHIKI KAISHA

发明人： Shinji Kitano

IPC分类号： F16H57/01 ,  F16H61/662 ,  F16H9/16 ,  F16H59/18

CPC分类号： F16H61/66259 ,  F16H9/16 ,  F16H59/18

摘要： A vehicle includes an engine, a continuously variable transmission including an endless belt to output a power from the engine, and a transmission to which the power from the continuously variable transmission is transmitted. If the vehicle travel speed is not smaller than a first threshold value and an accelerator opening degree is not smaller than a second threshold value, a controller determines that the continuously variable transmission is being used in a belt high-load situation. If a travel distance in the belt high-load situation is not smaller than a third threshold value, the controller determines that the endless belt is deteriorated or deterioration thereof is in an advanced stage, and a deterioration message about the endless belt is displayed on a display based on an instruction from the controller. A situation in which a speed changing ratio of the continuously variable transmission is not greater than a fourth threshold value may be determined as the belt high-load situation.

公开(公告)号：US20230112146A1

公开(公告)日：2023-04-13

申请号：US17800228

申请日：2021-01-11

申请人： Schaeffler Technologies AG & Co. KG

发明人： Carsten Trautmann

IPC分类号： F16G5/18 ,  F16G13/08 ,  F16H9/16

摘要： A plate link chain includes a chain running direction, an axial direction, a radial direction, a plate link, and a rocker pin pair. Each rocker pin has a plate link side contact surface, a rolling surface, and axially opposite end faces. The end faces are inclined axially inwards from radially outside to radially inside, aligned transversely to the axial direction, and arranged for force transmitting contact with a conical pulley pair. The end faces have respective curvatures having a first curvature portion defined by a radial radius about a first axis parallel to the chain running direction, and a second curvature portion defined by an azimuthal radius about a second axis parallel to the radial direction. A magnitude of the radial radius increases from radially outside to radially central, or a magnitude of the azimuthal radius increases from forward to central with respect to the chain running direction.

公开(公告)号：US11359711B2

公开(公告)日：2022-06-14

申请号：US16060827

申请日：2016-12-01

申请人： PIAGGIO & C. S.p.A.

发明人： Walter Mariotti ,  Giacomo Freschi ,  Paolo Nesti

IPC分类号： F16H55/56 ,  F16H9/12 ,  F16H55/52 ,  F16H9/16 ,  F16H9/18 ,  F16H55/49

摘要： A continuously variable transmission device (1) for a two-wheel, three-wheel or four-wheel motorcycle includes a cam system (20, 22; 32a, 32b) operating between a fixed bushing (11) and a mobile bushing (9). The device is configured to obstruct the approach between the active surfaces (8a, 10a) or to facilitate the approach of the active surfaces.

公开(公告)号：US20210380201A1

公开(公告)日：2021-12-09

申请号：US17405563

申请日：2021-08-18

申请人： BOMBARDIER RECREATIONAL PRODUCTS INC.

发明人： Xavier-Pierre AITCIN ,  Frederic DESJARDINS

IPC分类号： B62M27/02 ,  B62M9/08 ,  F16H9/16 ,  F16H55/56 ,  F16H57/027 ,  F16H57/035 ,  F16H57/04

摘要： A snowmobile includes a frame, a tunnel, a seat, an endless track, at least one ski, a handlebar, a cowling defining an engine compartment, an engine, a continuously variable transmission (CVT) operatively connecting the engine to the endless track, and a pulley guard assembly disposed over at least a portion of the CVT. The CVT includes a primary pulley, a secondary pulley, and an endless flexible member operatively connecting the primary pulley to the secondary pulley. The pulley guard assembly is disposed between the CVT and a lateral side of the cowling, and defines an air inlet. The air inlet fluidly communicates with a space defined between the pulley guard assembly and the lateral side. In some implementations, the cowling defines an air inlet. In some implementations, an air duct fluidly connects the air inlet of the cowling to the air inlet of the pulley guard assembly.

公开(公告)号：US20210010415A1

公开(公告)日：2021-01-14

申请号：US16505396

申请日：2019-07-08

申请人： Caterpillar Inc.

发明人： Brian LISTER ,  Gaurav VASUDEVA

IPC分类号： F02B67/06 ,  F16H1/28 ,  F16F15/30 ,  F16H1/20 ,  F16H9/16 ,  F16H37/02

摘要： A variable drive system to drive an accessory drive of a machine is disclosed. The variable drive system may include a first variable pulley to be mechanically coupled to the accessory drive and an engine output of an engine. The variable drive system may include a second variable pulley to be mechanically coupled to a flywheel. The variable drive system may include a drive element to rotate, according to a clutch system, about the first variable pulley and the second variable pulley to at least one of: drive the second variable pulley to charge the flywheel with kinetic energy or drive the first variable pulley via kinetic energy from the flywheel.

公开(公告)号：US10859130B2

公开(公告)日：2020-12-08

申请号：US16560594

申请日：2019-09-04

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Naonari Satoh ,  Atsushi Ayabe ,  Kunio Hattori ,  Yusuke Ohgata ,  Shinji Oita

IPC分类号： F16H61/66 ,  F16D48/06 ,  F16D41/04 ,  F16D47/04 ,  F16H37/02 ,  F16D41/12 ,  F16H1/28 ,  F16H9/16 ,  F16D41/16

摘要： A power transmission device for a vehicle includes a first power transmission path that is provided between an engine and a driving wheel, a second power transmission path that is provided in parallel with the first power transmission path, and an electronic control unit. The electronic control unit changes over a secondary clutch to a one-way mode while releasing a first clutch, when a request is made to change over a power transmission path between the engine and the driving wheel from the first power transmission path to the second power transmission path at a time of a predetermined state. The electronic control unit is configured to engage a second clutch when the secondary clutch is changed over to the one-way mode.

公开(公告)号：US20200173552A1

公开(公告)日：2020-06-04

申请号：US16633255

申请日：2017-08-23

申请人： NISSAN MOTOR CO., LTD.

发明人： Jun MOTOSUGI ,  Toshiji FUJIMOTO ,  Kouji OKAJIMA

IPC分类号： F16H61/662 ,  F16H61/30 ,  F16H9/16

摘要： A method controls a continuously variable transmission including: an oil pump disposed in an oil passage between a primary oil chamber and a secondary oil chamber to control a flow of oil from the secondary oil chamber to the primary oil chamber; and an oil supply source to supply oil to the secondary oil chamber, and the method includes: calculating a secondary hydraulic-pressure command value based on a required primary hydraulic pressure that is a pressure in the primary oil chamber required to transmit an input torque to an output side; and controlling the oil supply source in accordance with the secondary hydraulic-pressure command value.

公开(公告)号：US20180304925A1

公开(公告)日：2018-10-25

申请号：US15895166

申请日：2018-02-13

申请人： DENNIS BRANDON

发明人： DENNIS BRANDON

IPC分类号： B62D11/10 ,  F16H9/16 ,  F16H9/12 ,  F16H9/04

CPC分类号： B62D11/105 ,  F16H9/04 ,  F16H9/12 ,  F16H9/16 ,  F16H2009/163 ,  F16H2009/166

摘要： A continuously variable transmission (CVT) system, which turns the rear wheels of a lawn mower or similar vehicle at different speeds in a coordinated method with the front steering wheels in order to achieve the best turning radius (including a tight or zero turn radius, if desired) under most conditions. The system comprises two stages: the first stage comprising a Fixed Center Distance CVT pulley system, and the second stage comprising dual CVTs (e.g., left and right) that input into dual gear reducers (left and right), which are mechanically connected to the rear wheels. The second stage dual CVTs (left and right) are synchronized with the steering wheel, thus achieving different rear wheel speeds and/or directions based on the steering wheel position.