Planet Pinion Is A Ball Patents (Class 475/189)
  • Patent number: 10885236
    Abstract: A design engine systematically explores a design space associated with a design problem related to mechanical assemblies. The design engine implements a constraint programming approach to produce mechanical assembly configurations that adhere to a set of design constraints. For each feasible configuration, the design engine then optimizes various parameters to generate design options that meet a set of design objectives. With these techniques, the design space can be explored very quickly to generate significantly more feasible design options for the mechanical assembly than possible with conventional manual approaches. Accordingly, numerous design options can be generated that may otherwise never be produced using those conventional approaches.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: January 5, 2021
    Assignee: AUTODESK, INC.
    Inventors: Hyunmin Cheong, Mehran Ebrahimi, Francesco Iorio, Adrian Butscher
  • Patent number: 10703372
    Abstract: Disclosed here are inventive systems and methods for a powertrain of an electric vehicle (EV) having a continuously variable transmission (CVT) coupled to an electric drive motor, wherein a control system is configured to control the CVT and/or the drive motor to optimize various efficiencies associated with the EV and/or its subsystems. A control system is configured to operate the EV in an economy mode. Operating in said mode, the control system simultaneously manages the CVT and the drive motor to optimize the range of the EV. The control system can be configured to manage the current provided to the drive motor, as well as adjust a transmission speed ratio of the CVT. Other modes of operation are also possible. The control system can be configured to manage the power to the drive motor and adjust the transmission speed ratio of the CVT taking into account battery voltage, throttle position, and transmission speed ratio, for example.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: July 7, 2020
    Assignee: Fallbrook Intellectual Property Company LLC
    Inventors: Jeremy Carter, Brad P. Pohl, Loren T. McDaniel, Cyril Keilers, Tim Ruggles, David Lynn Rogers, Eric Diehl, Austin Orand, Alan Mark Delz, Paul Argus Parks, Mark Edward Bartholomew, Christopher M. Vasiliotis
  • Patent number: 10634224
    Abstract: Inventive embodiments are directed to components, subassemblies, systems, and/or methods for continuously and infinitely variable transmissions (IVT). In one embodiment, a variator is adapted to receive a control system that cooperates with a shift nut to actuate a ratio change in an IVT. In another embodiment, a neutral lock-out mechanism is adapted to cooperate with the variator to, among other things, disengage an output shaft from a variator. Various inventive mechanical couplings, such as an output engagement mechanism, are provided to facilitate a change in the ratio of an IVT for maintaining a powered zero operating condition. In one embodiment, the output engagement mechanism selectively couples an output member of the variator to a ratio adjuster of the variator. Embodiments of a ratio adjuster cooperate with other components of the IVT to support operation and/or functionality of the IVT. Among other things, user control interfaces for an IVT are disclosed.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: April 28, 2020
    Assignee: Fallbrook Intellectual Property Company LLC
    Inventors: Charles B. Lohr, Gregory G. Stevenson
  • Patent number: 10323732
    Abstract: A continuously variable transmission (CVT) can be used in concert with an electric motor to facilitate power assistance to a rider in a bicycle. In some embodiments, the CVT and motor is mounted on the frame of the bicycle at a location forward of the rear wheel hub of the bicycle. In some embodiments, the CVT is mounted on and supported by members of the bicycle frame such that the CVT is coaxial with the crankshaft of the bicycle. The crankshaft is configured to drive elements of the CVT, which are configured to operationally drive the traction rings and the traction planets. In some embodiments, the motor is configured to drive elements of the CVT. In other embodiments, the motor is configured to drive the crankshaft. Inventive component and subassemblies for such a CVT are disclosed.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: June 18, 2019
    Assignee: Fallbrook Intellectual Property Company LLC
    Inventors: Jon M. Nichols, Christopher M. Vasiliotis
  • Patent number: 10260607
    Abstract: Components, subassemblies, systems, and/or methods for continuously variable transmissions (CVT) having a variator provided with a plurality of tilting, traction planets and traction rings are described. In one embodiment, a variator is coupled to a rangebox to provide multiple operating modes. In another embodiment, a hydraulic system is configured to control the transmission ratio of the variator and the rangebox. Shift-cam-and-sun subassemblies can be used to facilitate shifting of the transmission ratio of a CVT. A transmission housing and bell housing can be adapted to house components of a CVT and, in some embodiments, to cooperate with other components of the CVT to support operation and/or functionality of the CVT. Related devices include, for example, a pivot arm, a control feedback mechanism, axial force generation and management mechanisms, a control valve integral with an input shaft, a pivot pin hub, and a rotatable carrier configured to support planet-pivot arm assemblies.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: April 16, 2019
    Assignee: Fallbrook Intellectual Property Company LLC
    Inventors: Jeremy Carter, Charles B. Lohr, Brad P. Pohl, David Kieke
  • Patent number: 10208840
    Abstract: Continuously variable transmissions (CVTs) having a plurality of balls, each ball having a bore through which a ball axle passes, are provided. In some aspects, the CVTs include first and second rings on either side and in contact with the plurality of balls, and an idler assembly including an idler having a non-uniform outer diameter. The profile of the idler ensures lubricant flows to a largest diameter of the non-uniform outer diameter, and lubricant sprays off the largest diameter to lubricate one or more components of the CVT. A lubrication system may include a scraper configured to remove lubricant that accumulates in an interior of the CVT.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: February 19, 2019
    Assignee: Fallbrook Intellectual Property Company LLC
    Inventors: Jon M. Nichols, Brad P. Pohl, Daniel J. Dawe, Oronde J. Armstrong, Charles B. Lohr, Loren T. McDaniel, Matthew P. Simister, Fernand A. Thomassy, Ghayyurul I. Usmani, Paul M. Elhardt, Terry L. Stewart, Peter D. Poxton, Elton L. Eidson
  • Patent number: 10088021
    Abstract: A variator suitable for an automotive continuously variable transmission utilizes a roller frictionally engaging two rotating plates. The plates are connected to an input such that they rotate at the same speed but in opposite directions. To change the ratio, the roller is moved along an axis perpendicular to the axis of rotation of the two counter-rotating plates. Power from the roller is transmitted to a bevel gear which meshes with an output bevel gear. The output bevel gear rotated about the same axis as the plates.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: October 2, 2018
    Assignee: Ford Global Technologies, LLC
    Inventor: Timothy Hart Baxendale
  • Patent number: 10066712
    Abstract: Inventive embodiments are directed to components, subassemblies, systems, and/or methods for infinitely variable transmissions (IVT). In one embodiment, a control system is adapted to facilitate a change in the ratio of an IVT. In another embodiment, a control system includes a carrier member configured to have a number of radially offset slots. Various inventive carrier members and carrier drivers can be used to facilitate shifting the ratio of an IVT. In some embodiments, the traction planet assemblies include planet axles configured to cooperate with the carrier members. In one embodiment, the carrier member is configured to rotate and apply a skew condition to each of the planet axles. In some embodiments, a carrier member is operably coupled to a carrier driver. In some embodiments, the carrier member is configured to couple to a source of rotational power. Among other things, shift control interfaces for an IVT are disclosed.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: September 4, 2018
    Assignee: Fallbrook Intellectual Property Company LLC
    Inventors: Charles B. Lohr, John W. Sherrill, Brad P Pohl, Robert Dawson, Corey Pew
  • Patent number: 10035511
    Abstract: A method of controlling operation of a powered device is provided, comprising determining whether the device is experiencing a cyclical load profile including high load conditions and low load conditions, applying a first power component to the device using an engine, the first power component corresponding to an average power required by the cyclical load profile, and applying a second power component to the device using a motor/generator, a sum of the first power component and the second power component corresponding to a power required by the powered device during the high load conditions.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: July 31, 2018
    Assignee: Cummins Inc.
    Inventors: Jennifer K. Light-Holets, Martin T. Books
  • Patent number: 10030748
    Abstract: A continuously variable transmission provides an increased transmission speed ratio with fewer parts. A kinematic arrangement can provide at least a squared kinematic arrangement of the variator for two or more modes, for example, and can provide an increased range transmission speed ratio with fewer moving parts. In many embodiments, the continuously variable transmission provides synchronous gear ratios and a continuously variable speed ratio.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: July 24, 2018
    Assignee: Dana Limited
    Inventor: Raymond James Haka
  • Patent number: 9995375
    Abstract: A continuously variable transmission includes a radially inner race, having a first radially inner race structure and a second radially inner race structure spaced along an axis wherein at least one of the first radially inner race structure or the second radially inner race structure is axially movable. The transmission further includes a radially outer race, having a first radially outer race structure and a second radially outer race structure spaced along an axis wherein at least one of the first radially outer race structure or the second radially outer race structure is axially movable, planetary members in rolling contact with the radially inner races and the radially outer races, and an outer race assembly that includes a hydraulic cavity housing, a hydraulic cavity sealed between the hydraulic cavity housing and the first radially outer race structure to control axial movement of the first radially outer race structure.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: June 12, 2018
    Assignee: Orbital Traction, Ltd.
    Inventors: Joseph D. Kliewer, Mark M. Koeroghlian
  • Patent number: 9950608
    Abstract: A transmission having a plurality of tilting balls and opposing input and output discs provides an infinite number of speed combinations over its transmission ratio range. The transmission provides multiple powerpaths and can be combined with electrical components to provide motor/generator functionality, which reduces the overall size and complexity of the motor and transmission compared to when they are constructed separately. In one embodiment, rotatable components of a continuously variable transmission are coupled separately to an electrical rotor and to an electrical stator so that the rotor and stator rotate simultaneously in opposite directions relative to one another. In other embodiments, an electrical rotor is configured to transfer torque to or from a disc that is in contact with a plurality of speed adjusters, while an electrical stator is configured to transfer torque to a shaft that is operationally coupled to the speed adjusters via an idler.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: April 24, 2018
    Assignee: Fallbrook intellectual Property Company LLC
    Inventor: Donald C. Miller
  • Patent number: 9945456
    Abstract: A continuously variable transmissions (CVT), includes a main axle adapted to receive a shift rod that cooperates with a shift rod nut to actuate a ratio change in a CVT. An axial force generating mechanism can include a torsion spring, a traction ring adapted to receive the torsion spring, and a roller cage retainer configured to cooperate with the traction ring to house the torsion spring. Power roller-leg assemblies can be used to facilitate shifting the ratio of a CVT. A hub shell and a hub cover are adapted to house components of a CVT and, in some embodiments, to cooperate with other components of the CVT to support operation and/or functionality of the CVT. Among other things, shift control interfaces and braking features for a CVT are disclosed.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: April 17, 2018
    Assignee: Fallbrook Intellectual Property Company LLC
    Inventors: Jon M Nichols, Daniel J Dawe, Oronde J Armstrong
  • Patent number: 9878719
    Abstract: Disclosed here are inventive systems and methods for a powertrain of an electric vehicle (EV). In some embodiments, said powertrain includes a continuously variable transmission (CVT) coupled to an electric drive motor, wherein a control system is configured to control the CVT and/or the drive motor to optimize various efficiencies associated with the EV and/or its subsystems. In one specific embodiment, the control system is configured to operate the EV in an economy mode. Operating in said mode, the control system simultaneously manages the CVT and the drive motor to optimize the range of the EV. The control system can be configured to manage the current provided to the drive motor, as well as adjust a transmission speed ratio of the CVT. Other modes of operation are also disclosed. The control system can be configured to manage the power to the drive motor and adjust the transmission speed ratio of the CVT taking into account battery voltage, throttle position, and transmission speed ratio, for example.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: January 30, 2018
    Assignee: Fallbrook Intellectual Property Company LLC
    Inventors: Jeremy Carter, Brad P. Pohl, Loren T. McDaniel, Cyril Keilers, Tim Ruggles, David Lynn Rogers, Eric Diehl, Austin Orand, Alan Mark Delz, Paul Argus Parks, Mark Edward Bartholomew, Christopher M. Vasiliotis
  • Patent number: 9834202
    Abstract: When an EV cancellation switch is turned on while a control mode is a CD mode and a traveling mode is an EV traveling mode, when a catalyst temperature is lower than a threshold and when a vehicle speed is lower than a threshold, a controller executes control processing including a step of executing first VVT control, a step of, when the catalyst temperature is higher than or equal to the threshold or when the vehicle speed is higher than or equal to the threshold, executing second VVT control and a step of switching the control mode into a CS mode.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: December 5, 2017
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Atsushi Takara, Kiyoshiro Ueoka
  • Patent number: 9765863
    Abstract: An outer race assembly for a continuously variable transmission includes a hydraulic cavity housing, a first radially outer race structure spaced along an axis from a second radially outer race structure to form a radially outer race, and planetary members in rolling contact with the radially outer race. The first radially outer race structure includes nesting engagement with the hydraulic cavity housing, and a hydraulic cavity sealed between the hydraulic cavity housing and the first radially outer race structure to control axial movement of the first radially outer race structure.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: September 19, 2017
    Assignee: Orbital Traction, Ltd.
    Inventors: Joseph D. Kliewer, Mark M. Koeroghlian
  • Patent number: 9676391
    Abstract: Disclosed here are inventive systems and methods for a powertrain of an electric vehicle (EV). In some embodiments, said powertrain includes a continuously variable transmission (CVT) coupled to an electric drive motor, wherein a control system is configured to control the CVT and/or the drive motor to optimize various efficiencies associated with the EV and/or its subsystems. In one specific embodiment, the control system is configured to operate the EV in an economy mode. Operating in said mode, the control system simultaneously manages the CVT and the drive motor to optimize the range of the EV. The control system can be configured to manage the current provided to the drive motor, as well as adjust a transmission speed ratio of the CVT. Other modes of operation are also disclosed. The control system can be configured to manage the power to the drive motor and adjust the transmission speed ratio of the CVT taking into account battery voltage, throttle position, and transmission speed ratio, for example.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: June 13, 2017
    Assignee: Fallbrook Intellectual Property Company LLC
    Inventors: Jeremy Carter, Brad P. Pohl, Loren T. McDaniel, Cyril Keilers, Tim Ruggles, David Lynn Rogers, Eric Diehl, Austin Orand, Alan Mark Delz, Paul Argus Parks, Mark Edward Bartholomew, Christopher M. Vasiliotis
  • Patent number: 9574643
    Abstract: Inventive embodiments are directed to components, subassemblies, systems, and/or methods for electric traction drives employing a continuously variable transmission (CVT) having a variator provided with a plurality of tilting traction planets and opposing traction rings. In one embodiment, an electric traction drive is provided with an electromotive device configured to transfer power to or from a traction sun of a CVT. In other embodiments, an electric traction drive is provided with an electromotive device that couples to certain components of a CVT such as a traction ring, a carrier assembly, and a main axle. Various inventive shifting assemblies having shift cams and shift cam cages can be used to facilitate adjusting the transmission speed ratio of a CVT. Various related devices include embodiments of, for example, a power input apparatus, a speed ratio shifter, a shift cam actuator, a shift nut, and a carrier assembly configured to support the tilting traction planets.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: February 21, 2017
    Assignee: Fallbrook Intellectual Property Company LLC
    Inventor: Brad P. Pohl
  • Patent number: 9528561
    Abstract: Inventive embodiments are directed to components, subassemblies, systems, and/or methods for continuously variable transmissions (CVT). In one embodiment, a main axle is adapted to receive a carrier assembly to facilitate the support of components in a CVT. In another embodiment, a carrier includes a stator support member and a stator interfacial member. In some embodiments, the stator interfacial member is configured to interact with planet subassemblies of a CVT. Various inventive planet subassemblies and idler assemblies can be used to facilitate shifting the ratio of a CVT. In some embodiments, the planet subassemblies include legs configured to have a sliding interface with a carrier assembly. Embodiments of a hub shell, a hub cover are adapted to house components of a CVT and, in some embodiments, to cooperate with other components of the CVT to support operation and/or functionality of the CVT. Among other things, shift control interfaces and braking features for a CVT are disclosed.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: December 27, 2016
    Assignee: Fallbrook Intellectual Property Company LLC
    Inventors: Jon M. Nichols, Matthew P. Simister, Daniel J. Dawe, Charles B. Lohr, Timothy M. Obrzut
  • Patent number: 9469292
    Abstract: A hybrid vehicle according to the present invention includes an engine, a power storage device, a motor generator, and an ECU. The motor generator receives electric power from the power storage device and generates travel driving force. The ECU selects one of a CD mode and a CS mode to cause the vehicle to travel, in the CD mode an SOC of the power storage device being consumed, in the CS mode the SOC being maintained within a prescribed range. The CS mode includes a first CS mode and a second CS mode, the first CS mode being selected when the SOC decreases to a prescribed amount, the second CS mode being selected based on a user's intention. A second prescribed range corresponding to the second CS mode is set to be wider than a first prescribed range corresponding to the first CS mode.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: October 18, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Taishi Hisano
  • Patent number: 9347532
    Abstract: A torque vectoring device includes a drive member engaged with a power source, a plurality of variator ball assemblies configured to be tiltable and rotatable with respect to the drive member, a first output frictionally engaged with the variator ball assemblies, and a second output frictionally engaged with the variator ball assemblies. A torque distribution between the first output and the second output may be adjusted by tilting the plurality of variator ball assemblies. The variator ball assemblies also facilitate a differential action between the first output and the second output.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: May 24, 2016
    Assignee: DANA LIMITED
    Inventors: Mark R. J. Versteyhe, Thibaut E. Duchene, Matthias W. J. Byltiauw
  • Patent number: 9328807
    Abstract: Disclosed here are inventive systems and methods for a powertrain of an electric vehicle (EV). In some embodiments, said powertrain includes a continuously variable transmission (CVT) coupled to an electric drive motor, wherein a control system is configured to control the CVT and/or the drive motor to optimize various efficiencies associated with the EV and/or its subsystems. In one specific embodiment, the control system is configured to operate the EV in an economy mode. Operating in said mode, the control system simultaneously manages the CVT and the drive motor to optimize the range of the EV. The control system can be configured to manage the current provided to the drive motor, as well as adjust a transmission speed ratio of the CVT. Other modes of operation are also disclosed. The control system can be configured to manage the power to the drive motor and adjust the transmission speed ratio of the CVT taking into account battery voltage, throttle position, and transmission speed ratio, for example.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: May 3, 2016
    Assignee: Fallbrook Intellectual Property Company LLC
    Inventors: Jeremy Carter, Brad P Pohl, Loren T McDaniel, Cyril Keilers, Tim Ruggles, David Lynn Rogers, Eric Diehl, Austin Orand, Alan Mark Delz, Paul Argus Parks, Mark Edward Bartholomew, Christopher M Vasiliotis
  • Patent number: 9291251
    Abstract: Components, subassemblies, systems, and/or methods for continuously variable transmissions (CVT) are provided. In one embodiment, a CVT has a number of spherical planets in contact with an idler assembly. Various idler assemblies can be used to facilitate to improve durability, fatigue life, and efficiency of a CVT. In one embodiment, the idler assembly has two rolling elements having contact surfaces that are angled with respect to a longitudinal axis of the CVT. In some embodiments, a bearing is operably coupled between the first and second rolling elements. The bearing is configured to balance axial force between the first and second rolling elements. In one embodiment, the bearing is a ball bearing. In another embodiment, the bearing is an angular contact bearing. In yet other embodiments, needle roller bearings are employed.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: March 22, 2016
    Assignee: Fallbrook Intellectual Property Company LLC
    Inventors: Charles B. Lohr, Brad P. Pohl
  • Patent number: 9017207
    Abstract: Embodiments are directed to a front end accessory drive (FEAD) and power modulating devices (PMD) which can be used in a FEAD. In one embodiment, a continuously variable transmission (CVT) is coupled directly to a crankshaft of a prime mover, and the CVT is used to regulate the speed and/or torque delivered to an accessory. A compound drive device includes a motor/generator subassembly cooperating with a CVT subassembly to provide a motor functionality with torque multiplication or division, or alternatively, a generator functionality with torque multiplication or division. In some embodiments, a FEAD includes a PMD having a sun shaft configured to couple to a sun of the PMD and to an electric motor component, such as an electrical armature or an electrical field. In one embodiment, the electrical armature the electrical field are placed concentrically and coaxially and configured to rotate relative to one another in opposite directions.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: April 28, 2015
    Assignee: Fallbrook Intellectual Property Company LLC
    Inventors: Brad P Pohl, Donald C Miller, Robert A Smithson, Jeremy Carter, Charles B Lohr
  • Publication number: 20150111683
    Abstract: A variable transmission includes an input shaft, a planetary gear set drivingly engaged with a variator comprising, a variator carrier assembly, a first ring assembly, and a second ring assembly; and the output shaft, arranged to produce transmissions with continuously variable or infinitely variable output ratios.
    Type: Application
    Filed: November 18, 2014
    Publication date: April 23, 2015
    Inventors: Mark R.J. Versteyhe, Thibaut E. Duchene, Matthias W.J. Byltiauw
  • Patent number: 8961363
    Abstract: Provided with first and second rotational members, a sun roller, a plurality of planetary balls sandwiched between the first and second rotational members, a support shaft of each of the planetary balls, a shaft, a carrier, an iris plate and a worm gear for tilting each of the planetary balls, and an input shaft and an output shaft individually fixed to the first and second rotational members, respectively, in which a movable amount of the sun roller relative to the carrier in an axis line direction is set to be smaller than the movable amount of the second rotational member relative to the carrier in the axis line direction when the input shaft is arranged so as to be relatively rotatable on an outer peripheral surface of the output shaft.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: February 24, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takahiro Shiina, Akira Murakami, Hiroyuki Ogawa, Daisuke Tomomatsu, Yuki Aratsu
  • Publication number: 20150018154
    Abstract: Components, subassemblies, systems, and/or methods for continuously variable transmissions (CVT) having a control system adapted to facilitate a change in the ratio of a CVT are described. In one embodiment, a control system includes a stator plate configured to have a plurality of radially offset slots. Various traction planet assemblies and stator plates can be used to facilitate shifting the ratio of a CVT. In some embodiments, the traction planet assemblies include planet axles configured to cooperate with the stator plate. In one embodiment, the stator plate is configured to rotate and apply a skew condition to each of the planet axles. In some embodiments, a stator driver is operably coupled to the stator plate. Embodiments of a traction sun are adapted to cooperate with other components of the CVT to support operation and/or functionality of the CVT.
    Type: Application
    Filed: September 30, 2014
    Publication date: January 15, 2015
    Inventor: Fernand A Thomassy
  • Patent number: 8900085
    Abstract: Components, subassemblies, systems, and/or methods for continuously variable transmissions (CVT) are provided. In one aspect, a control system is adapted to facilitate a change in the ratio of a CVT. A control system includes a control reference nut coupled to a feedback cam and operably coupled to a skew cam. In some cases, the skew cam is configured to interact with carrier plates of a CVT. Various inventive feedback cams and skew cams can be used to facilitate shifting the ratio of a CVT. In some transmissions described, the planet subassemblies include legs configured to cooperate with the carrier plates. In some cases, a neutralizer assembly is operably coupled to the carrier plates. A shift cam and a traction sun are adapted to cooperate with other components of the CVT to support operation and/or functionality of the CVT. Among other things, shift control interfaces for a CVT are provided.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: December 2, 2014
    Assignee: Fallbrook Intellectual Property Company LLC
    Inventors: Brad P Pohl, Fernand A Thomassy, Charles B Lohr
  • Patent number: 8888643
    Abstract: Disclosed embodiments are directed to components, subassemblies, systems, and/or methods for continuously variable transmissions (CVT). In one embodiment, a CVT has a number of spherical planets in contact with an idler. Various idler assemblies can be used to facilitate to improve durability, fatigue life, and efficiency of a CVT. In one embodiment, the idler assembly has two rolling elements having contact surfaces that are angled with respect to a longitudinal axis of the CVT. In some embodiments, a bearing is operably coupled between the first and second rolling elements. The bearing is configured to balance axial force between the first and second rolling elements. In one embodiment, the bearing is a ball bearing. In another embodiment, the bearing is an angular contact bearing. In yet other embodiments, needle roller bearings are employed.
    Type: Grant
    Filed: November 3, 2011
    Date of Patent: November 18, 2014
    Assignee: Fallbrook Intellectual Property Company LLC
    Inventors: Charles B Lohr, Brad Pohl
  • Patent number: 8870711
    Abstract: Inventive embodiments are directed to components, subassemblies, systems, and/or methods for continuously variable accessory drives (CVAD). In one embodiment, a skew-based control system is adapted to facilitate a change in the ratio of a CVAD. In another embodiment, a skew-based control system includes a skew actuator coupled to a carrier member. In some embodiments, the skew actuator is configured to rotate a carrier member of a CVT. Various inventive traction planet assemblies can be used to facilitate shifting the ratio of a CVT. In some embodiments, the traction planet assemblies include legs configured to cooperate with the carrier members. In some embodiments, a traction planet assembly is operably coupled to the carrier members. Embodiments of a shift cam and traction sun are adapted to cooperate with other components of the CVT to support operation and/or functionality of the CVT. Among other things, shift control interfaces for a CVT are disclosed.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: October 28, 2014
    Assignee: Fallbrook Intellectual Property Company LLC
    Inventors: Brad P. Pohl, Fernand A. Thomassy, Charles B. Lohr, Scott T. McBroom
  • Publication number: 20140274536
    Abstract: A variable transmission includes an input shaft, a planetary gear set drivingly engaged with a variator comprising, a variator carrier assembly, a first ring assembly, and a second ring assembly; and the output shaft, arranged to produce transmissions with continuously variable or infinitely variable output ratios.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 18, 2014
    Applicant: DANA LIMITED
    Inventors: Mark R.J. Versteyhe, Thibaut E. Duchene, Matthias W.J. Byltiauw
  • Publication number: 20140274535
    Abstract: A continuously variable transmission that includes an input assembly, an output assembly, an input/output planetary ratio assembly and a torque feedback control is provided. The input assembly is coupled to receive input rotational motion. The output assembly is rotationally coupled to a load. The input/output planetary ratio assembly sets an input to output speed ratio. The input/output ratio assembly has a first portion that is in rotational communication with the input assembly and a second portion that is in rotational communication with the output assembly. The torque feedback control assembly provides an axial load force in response to a torque of a load coupled to the output assembly. A differential assembly sets the input to output speed ratio of the input/output planetary ratio assembly based at least in part on an axial load force of the torque feedback control assembly.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: TEAM Industries, Inc.
    Inventors: John E. Hamrin, Bruce H. Younggren, Joel Dunlap
  • Publication number: 20140248988
    Abstract: Inventive embodiments are directed to components, subassemblies, systems, and/or methods for infinitely variable transmissions (IVT). In one embodiment, a control system is adapted to facilitate a change in the ratio of an IVT. In another embodiment, a control system includes a carrier member configured to have a number of radially offset slots. Various inventive carrier members and carrier drivers can be used to facilitate shifting the ratio of an IVT. In some embodiments, the traction planet assemblies include planet axles configured to cooperate with the carrier members. In one embodiment, the carrier member is configured to rotate and apply a skew condition to each of the planet axles. In some embodiments, a carrier member is operably coupled to a carrier driver. In some embodiments, the carrier member is configured to couple to a source of rotational power. Among other things, shift control interfaces for an IVT are disclosed.
    Type: Application
    Filed: May 9, 2014
    Publication date: September 4, 2014
    Inventors: Charles B. Lohr, John W. Sherrill, Brad P. Pohl, Robert Dawson, Corey Pew
  • Patent number: 8814739
    Abstract: A continuously variable transmission includes an input assembly. The input assembly coupled to receive input rotational motion. An output assembly is used to provide a rotational output and is coupled to a load. Moreover, an input/output planetary ratio assembly sets an input to output speed ratio between the input assembly and the output assembly. An input speed feedback control assembly is used to provide an axial speed force in response to a rotation from the input assembly on a shift rod. A torque feedback control assembly is used to provide an axial load force on the shift rod in an opposite direction from the axial speed force in response to a torque of a load coupled to the output assembly. In addition, a shifting member is coupled to the shift rod. The shifting member controls the input/output planetary ratio assembly based on a position of the shift rod.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: August 26, 2014
    Assignee: TEAM Industries, Inc.
    Inventors: John E. Hamrin, Bruce H. Younggren, Joel Dunlap
  • Patent number: 8784248
    Abstract: In an engine start control device of a hybrid vehicle including a power dividing mechanism which has a sun roller, a carrier, and a first disc with which a rotating shaft of a first motor/generator, an output shaft of an engine, and an output shaft of a second motor/generator are coupled, respectively and by which differential rotating operations between the sun roller, the carrier, and the first disc are controlled using an alignment chart on which rotation speeds of the sun roller, the carrier, and the first disc are disposed in the sequence of the sun roller, the carrier, the first disc and shown by straight lines.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: July 22, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Akira Murakami, Hiroyuki Ogawa, Takahiro Shiina, Daisuke Tomomatsu
  • Patent number: 8784261
    Abstract: A continuously variable transmission includes a continuously variable transmission mechanism that includes an input disk, an output disk, and planetary balls sandwiched between them and that steplessly changes a transmission ratio between the input disk and the output disk by tilting the planetary balls, wherein cooling performance of a cooling device for the continuously variable transmission mechanism is enhanced as the transmission ratio becomes larger than 1 or smaller than 1.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: July 22, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroyuki Ogawa, Akira Murakami
  • Publication number: 20140179479
    Abstract: Inventive embodiments are directed to components, subassemblies, systems, and/or methods for continuously variable transmissions (CVT). In one embodiment, a control system is adapted to facilitate a change in the ratio of a CVT. In another embodiment, a control system includes a stator plate configured to have a plurality of radially offset slots. Various inventive traction planet assemblies and stator plates can be used to facilitate shifting the ratio of a CVT. In some embodiments, the traction planet assemblies include planet axles configured to cooperate with the stator plate. In one embodiment, the stator plate is configured to rotate and apply a skew condition to each of the planet axles. In some embodiments, a stator driver is operably coupled to the stator plate. Embodiments of a traction sun are adapted to cooperate with other components of the CVT to support operation and/or functionality of the CVT. Among other things, shift control interfaces for a CVT are disclosed.
    Type: Application
    Filed: March 3, 2014
    Publication date: June 26, 2014
    Applicant: FALLBROOK INTELLECTUAL PROPERTY COMPANY LLC
    Inventors: Jon M. Nichols, Gregory G. Stevenson, Brad P. Pohl, Fernand A. Thomassy, Charles B. Lohr, Jeremy Carter, John W. Sherrill, Brian B. Sweet
  • Patent number: 8738255
    Abstract: Disclosed here are inventive systems and methods for a powertrain of an electric vehicle (EV). In some embodiments, said powertrain includes a continuously variable transmission (CVT) coupled to an electric drive motor, wherein a control system is configured to control the CVT and/or the drive motor to optimize various efficiencies associated with the EV and/or its subsystems. In one specific embodiment, the control system is configured to operate the EV in an economy mode. Operating in said mode, the control system simultaneously manages the CVT and the drive motor to optimize the range of the EV. The control system can be configured to manage the current provided to the drive motor, as well as adjust a transmission speed ratio of the CVT. Other modes of operation are also disclosed. The control system can be configured to manage the power to the drive motor and adjust the transmission speed ratio of the CVT taking into account battery voltage, throttle position, and transmission speed ratio, for example.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: May 27, 2014
    Assignee: Fallbrook Intellectual Property Company LLC
    Inventors: Jeremy Carter, Brad P Pohl, Loren T McDaniel, Cyril Keilers, Tim Ruggles, David Rogers, Eric Diehl, Austin Orand, Alan Mark Delz, Paul Argus Parks, Mark E Bartholomew, Christopher M Vasiliotis
  • Publication number: 20140141919
    Abstract: An infinitely variable transmission (IVT) having a rotatable input shaft arranged along a longitudinal axis of the transmission. In one embodiment, the input shaft is adapted to supply a lubricant to the interior of the transmission. In some embodiments, a stator assembly is coupled to, and coaxial with, the input shaft. The IVT has a plurality of planets operably coupled to the stator assembly. The planets are arranged angularly about the longitudinal axis of the transmission. In one embodiment, a traction ring is operably coupled to the planets. The IVT is provided with a housing that is operably coupled to the traction ring. The housing is substantially fixed from rotating with the input shaft. The traction ring is substantially fixed from rotating with the input shaft. In some embodiments, the IVT is provided with a lubricant manifold that is configured to supply a lubricant to the input shaft.
    Type: Application
    Filed: January 6, 2014
    Publication date: May 22, 2014
    Applicant: Fallbrook Intellectual Property Company LLC
    Inventors: Matthew R Bazyn, Jeremy Carter, Charles B Lohr, Curtis Malone, Loren T McDaniel, Peter D Poxton
  • Patent number: 8721485
    Abstract: Inventive embodiments are directed to components, subassemblies, systems, and/or methods for infinitely variable transmissions (IVT). In one embodiment, a control system is adapted to facilitate a change in the ratio of an IVT. In another embodiment, a control system includes a carrier member configured to have a number of radially offset slots. Various inventive carrier members and carrier drivers can be used to facilitate shifting the ratio of an IVT. In some embodiments, the traction planet assemblies include planet axles configured to cooperate with the carrier members. In one embodiment, the carrier member is configured to rotate and apply a skew condition to each of the planet axles. In some embodiments, a carrier member is operably coupled to a carrier driver. In some embodiments, the carrier member is configured to couple to a source of rotational power. Among other things, shift control interfaces for an IVT are disclosed.
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: May 13, 2014
    Assignee: Fallbrook Intellectual Property Company LLC
    Inventors: Charles B. Lohr, John W. Sherrill, Brad P. Pohl, Robert Dawson, Corey Pew
  • Publication number: 20140128195
    Abstract: A variable speed transmission having a plurality of tilting balls and opposing input and output discs is illustrated and described that provides an infinite number of speed combinations over its transmission ratio range. The use of a planetary gear set allows minimum speeds to be in reverse and the unique geometry of the transmission allows all of the power paths to be coaxial, thereby reducing overall size and complexity of the transmission in comparison to transmissions achieving similar transmission ratio ranges.
    Type: Application
    Filed: January 13, 2014
    Publication date: May 8, 2014
    Applicant: Fallbrook Intellectual Property Company LLC
    Inventors: Donald C. Miller, David J. Allen, Robert A. Smithson
  • Patent number: 8708360
    Abstract: Traction planets and traction rings can be operationally coupled to a planetary gearset to provide a continuously variable transmission (CVT). The CVT can be used in a bicycle. In one embodiment, the CVT is mounted on the frame of the bicycle at a location forward of the rear wheel hub of the bicycle. In one embodiment, the CVT is mounted on and supported by members of the bicycle frame such that the CVT is coaxial with the crankshaft of the bicycle. The crankshaft is configured to drive elements of the planetary gearset, which are configured to operationally drive the traction rings and the traction planets. Inventive component and subassemblies for such a CVT are disclosed. A shifting mechanism includes a plurality of pivot arms arranged to pivot about the centers of the traction planets as a shift pin hub moves axially.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: April 29, 2014
    Assignee: Fallbrook Intellectual Property Company LLC
    Inventors: Donald C Miller, Robert A Smithson, Brad P Pohl, Charles B Lohr, Jon M Nichols
  • Patent number: 8663050
    Abstract: Inventive embodiments are directed to components, subassemblies, systems, and/or methods for continuously variable transmissions (CVT). In one embodiment, a control system is adapted to facilitate a change in the ratio of a CVT. In another embodiment, a control system includes a stator plate configured to have a plurality of radially offset slots. Various inventive traction planet assemblies and stator plates can be used to facilitate shifting the ratio of a CVT. In some embodiments, the traction planet assemblies include planet axles configured to cooperate with the stator plate. In one embodiment, the stator plate is configured to rotate and apply a skew condition to each of the planet axles. In some embodiments, a stator driver is operably coupled to the stator plate. Embodiments of a traction sun are adapted to cooperate with other components of the CVT to support operation and/or functionality of the CVT. Among other things, shift control interfaces for a CVT are disclosed.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: March 4, 2014
    Assignee: Fallbrook Intellectual Property Company LLC
    Inventors: Jon M Nichols, Gregory G Stevenson, Brad P Pohl, Fernand A Thomassy, Charles B Lohr, Jeremy Carter, John W Sherrill, Brian B Sweet
  • Patent number: 8641572
    Abstract: Inventive embodiments are directed to components, subassemblies, systems, and/or methods for continuously variable transmissions (CVT). In one embodiment, a main axle is adapted to receive a carrier assembly to facilitate the support of components in a CVT. In another embodiment, a carrier includes a stator support member and a stator interfacial member. In some embodiments, the stator interfacial member is configured to interact with planet subassemblies of a CVT. Various inventive planet subassemblies and idler assemblies can be used to facilitate shifting the ratio of a CVT. In some embodiments, the planet subassemblies include legs configured to have a sliding interface with a carrier assembly. Embodiments of a hub shell, a hub cover are adapted to house components of a CVT and, in some embodiments, to cooperate with other components of the CVT to support operation and/or functionality of the CVT. Among other things, shift control interfaces and braking features for a CVT are disclosed.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: February 4, 2014
    Assignee: Fallbrook Intellectual Property Company LLC
    Inventors: Jon M. Nichols, Matthew P. Simister, Daniel J. Dawe, Charles B. Lohr, Timothy M. Obrzut
  • Patent number: 8628443
    Abstract: A variable speed transmission having a plurality of tilting balls and opposing input and output discs is illustrated and described that provides an infinite number of speed combinations over its transmission ratio range. The use of a planetary gear set allows minimum speeds to be in reverse and the unique geometry of the transmission allows all of the power paths to be coaxial, thereby reducing overall size and complexity of the transmission in comparison to transmissions achieving similar transmission ratio ranges.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: January 14, 2014
    Assignee: Fallbrook Intellectual Property Company LLC
    Inventors: Donald C. Miller, David J. Allen, Robert A. Smithson
  • Patent number: 8622866
    Abstract: An infinitely variable transmission (IVT) having a rotatable input shaft arranged along a longitudinal axis of the transmission. In one embodiment, the input shaft is adapted to supply a lubricant to the interior of the transmission. In some embodiments, a stator assembly is coupled to, and coaxial with, the input shaft. The IVT has a plurality of planets operably coupled to the stator assembly. The planets are arranged angularly about the longitudinal axis of the transmission. In one embodiment, a traction ring is operably coupled to the planets. The IVT is provided with a housing that is operably coupled to the traction ring. The housing is substantially fixed from rotating with the input shaft. The traction ring is substantially fixed from rotating with the input shaft. In some embodiments, the IVT is provided with a lubricant manifold that is configured to supply a lubricant to the input shaft.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: January 7, 2014
    Assignee: Fallbrook Intellectual Property Company LLC
    Inventors: Matthew R. Bazyn, Jeremy Carter, Charles B. Lohr, Curtis Malone, Loren T. McDaniel, Peter D. Poxton
  • Patent number: 8613684
    Abstract: A continuously variable transmission includes: first and second rotating elements that has a common first rotation axis; a planetary ball that is rotatably supported by a support shaft having a second rotation axis separate from the first rotation axis, and is sandwiched between the first rotation member and the second rotating member such that torque transmission is possible between them; grooves, etc., that permit change in a rotation ratio between the first and second rotating members by tilting and rolling the planetary ball; an inclined surface that pushes the support shaft in a direction opposite to the direction of tilt of the support shaft in accordance with spin moment occurring at the planetary ball when moving in an axial direction; and a thrust force transmitting section, such as a movable shaft, etc., by which radial thrust force applied from the planetary ball is transmitted to the inclined surface based on spin moment occurring at the planetary ball.
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: December 24, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takahiro Shiina, Akira Murakami, Hiroyuki Ogawa, Daisuke Tomomatsu
  • Publication number: 20130331218
    Abstract: Inventive embodiments are directed to components, subassemblies, systems, and/or methods for infinitely variable transmissions (IVT). In one embodiment, a control system is adapted to facilitate a change in the ratio of an IVT. In another embodiment, a control system includes a carrier member configured to have a number of radially offset slots. Various inventive carrier members and carrier drivers can be used to facilitate shifting the ratio of an IVT. In some embodiments, the traction planet assemblies include planet axles configured to cooperate with the carrier members. In one embodiment, the carrier member is configured to rotate and apply a skew condition to each of the planet axles. In some embodiments, a carrier member is operably coupled to a carrier driver. In some embodiments, the carrier member is configured to couple to a source of rotational power. Among other things, shift control interfaces for an IVT are disclosed.
    Type: Application
    Filed: August 19, 2013
    Publication date: December 12, 2013
    Applicant: Fallbrook Intellectual Property Company LLC
    Inventors: Charles B. Lohr, John W. Sherrill, Brad P. Pohl, Robert Dawson, Corey Pew
  • Publication number: 20130288845
    Abstract: A variable transmission device and method are disclosed.
    Type: Application
    Filed: April 14, 2011
    Publication date: October 31, 2013
    Applicant: ORBITAL TRACTION LIMITED
    Inventor: Joe Kliewer
  • Patent number: 8512195
    Abstract: Inventive embodiments are directed to components, subassemblies, systems, and/or methods for infinitely variable transmissions (IVT). In one embodiment, a control system is adapted to facilitate a change in the ratio of an IVT. In another embodiment, a control system includes a carrier member configured to have a number of radially offset slots. Various inventive carrier members and carrier drivers can be used to facilitate shifting the ratio of an IVT. In some embodiments, the traction planet assemblies include planet axles configured to cooperate with the carrier members. In one embodiment, the carrier member is configured to rotate and apply a skew condition to each of the planet axles. In some embodiments, a carrier member is operably coupled to a carrier driver. In some embodiments, the carrier member is configured to couple to a source of rotational power. Among other things, shift control interfaces for an IVT are disclosed.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: August 20, 2013
    Assignee: Fallbrook Intellectual Property Company LLC
    Inventors: Charles B. Lohr, John W. Sherrill, Brad P. Pohl, Robert Dawson, Corey Pew