Patents Assigned to TRANSMISSION CVTCORP INC.
  • Patent number: 11794761
    Abstract: A user input signal management method for a vehicle provided with a prime mover having an output that rotates and an input for a user input signal that controls the rotating speed of the output of the prime mover. The method including the reception of a signal representative of the position of a user input of a vehicle, the reception of data representative of at least one condition of the vehicle, the modification of the received signal representative of the position of the user input as a function of the data received and the supply of the modified signal to the accelerator input of the prime mover.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: October 24, 2023
    Assignee: TRANSMISSION CVTCORP INC.
    Inventors: Jonathan Guérin, Daniel Girard
  • Patent number: 11708078
    Abstract: A slip control method and arrangement for a drivetrain including a continuously variable transmission, forward-reverse clutch arrangement and an optional three-speed gearbox is described herein. The forward-reverse clutch arrangement includes a clutch that is so controlled as to slip when a torque higher than the usable torque attempts to pass through. Accordingly, the clutch prevents the prime mover from stalling.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: July 25, 2023
    Assignee: TRANSMISSION CVTCORP INC.
    Inventors: Jean-Robert Desmeules, Jean-Philippe Parent
  • Publication number: 20220348205
    Abstract: A compression-based speed limiting for a driveline including a transmission is described herein. The driveline controller detects over speeding and controls the ratio of the transmission to therefore increase compression of the prime mover and therefore limit speed.
    Type: Application
    Filed: May 2, 2022
    Publication date: November 3, 2022
    Applicant: TRANSMISSION CVTCORP INC.
    Inventors: Jonathan Guérin, Jean-Philippe Parent
  • Patent number: 11401987
    Abstract: The control of the engagement rate of a clutch in a driveline is described herein. The clutch engagement rate is determined using at least one parameter of the driveline. An illustrative example where the parameters include the slipping level of the clutch and the rotational speed at the output of the clutch is described herein.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: August 2, 2022
    Assignee: TRANSMISSION CVTCORP INC.
    Inventors: Jonathan Guerin, Jean-Francois Dionne, Daniel Girard
  • Publication number: 20220221013
    Abstract: Clutch temperature management in a slip control method and arrangement for a drivetrain including a continuously variable transmission is described herein. The drivetrain includes a clutch that is so controlled as to slip when a torque higher than the usable torque attempts to pass through. The temperature data from the clutch is used to determine the usable torque. Accordingly, the clutch prevents the prime mover from stalling.
    Type: Application
    Filed: May 28, 2020
    Publication date: July 14, 2022
    Applicant: TRANSMISSION CVTCORP INC.
    Inventors: Jonathan Guérin, Jean-François Dionne, Daniel Girard, François Messier
  • Patent number: 11143295
    Abstract: A calibration method for a slip control arrangement of a driveline including a continuously variable transmission is described herein. The driveline includes a clutch that is so controlled as to slip when a torque higher than the usable torque attempts to pass through. Accordingly, the clutch prevents the prime mover from stalling. A calibration method to link a valve command value and a torque allowed to pass through the clutch includes preventing the vehicle from moving and increasing the pressure applied in the clutch while noting the torque % value developed by the prime mover.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: October 12, 2021
    Assignee: TRANSMISSION CVTCORP INC.
    Inventors: Jonathan Guérin, Jean-François Dionne
  • Patent number: 11022216
    Abstract: A drivetrain control and a method for controlling a drivetrain where the actual engine torque of the prime mover is taken into account are described herein. Illustrative embodiments include control systems and methods where the ratio set point of the CVT and/or the rate of the CVT ratio change are modified according to the actual engine torque of the prime mover.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: June 1, 2021
    Assignee: TRANSMISSION CVTCORP INC.
    Inventors: Jonathan Guerin, Jean-Francois Dionne
  • Publication number: 20210062894
    Abstract: A skew limiter for a toric-drive CVT is described herein. The skew limiter proposes a shaped piece that limits the skew angle to a known angle notwithstanding the tilt angle of the rollers.
    Type: Application
    Filed: May 9, 2018
    Publication date: March 4, 2021
    Applicant: TRANSMISSION CVTCORP INC.
    Inventors: Alexandre Blouin, Maxime Desjarlais
  • Publication number: 20210048102
    Abstract: A calibration method for a slip control arrangement of a driveline including a continuously variable transmission is described herein. The driveline includes a clutch that is so controlled as to slip when a torque higher than the usable torque attempts to pass through. Accordingly, the clutch prevents the prime mover from stalling. A calibration method to link a valve command value and a torque allowed to pass through the clutch includes preventing the vehicle from moving and increasing the pressure applied in the clutch while noting the torque % value developed by the prime mover.
    Type: Application
    Filed: November 4, 2020
    Publication date: February 18, 2021
    Applicant: Transmission CVTCORP Inc.
    Inventors: Jonathan Guérin, Jean-François Dionne
  • Patent number: 10919534
    Abstract: A slip control method and arrangement for a driveline is described herein. The driveline includes a clutch that is so controlled as to slip when a torque higher than the usable torque attempts to pass through. Accordingly, the clutch prevents the prime mover from stalling.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: February 16, 2021
    Assignee: TRANSMISSION CVTCORP INC.
    Inventors: Jonathan Guerin, Jean-Francois Dionne
  • Patent number: 10859160
    Abstract: A calibration method for a slip control arrangement of a driveline including a continuously variable transmission is described herein. The driveline includes a clutch that is so controlled as to slip when a torque higher than the usable torque attempts to pass through. Accordingly, the clutch prevents the prime mover from stalling. A calibration method to link a valve command value and a torque allowed to pass through the clutch includes preventing the vehicle from moving and increasing the pressure applied in the clutch while noting the torque % value developed by the prime mover.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: December 8, 2020
    Assignee: TRANSMISSION CVTCORP INC.
    Inventors: Jonathan Guérin, Jean-François Dionne
  • Publication number: 20200130506
    Abstract: A Feed Mixer Drivetrain provided with a transmission and control method therefor, wherein a controller is so configured as control a sequence of operation phases of the feed mixer; each operation phase defining a predetermined speed of the input shaft of the feed mixer via the transmission and a predetermined duration.
    Type: Application
    Filed: January 30, 2018
    Publication date: April 30, 2020
    Applicant: TRANSMISSION CVTCORP INC.
    Inventors: Michel-Xavier DUMAIS, Jonathan GUÉRIN, Jeremy SHIFLETT, Jean-Francois DIONNE, Daniel GIRARD
  • Patent number: 10502268
    Abstract: A drivetrain for connection between the output of a prime mover and the input of a final drive is described herein. The drivetrain comprises a CVT including an input connected to the output of the prime mover and an output; a power mixer having a first input connected to the output of the prime mover, a second input coupled to the output disk of the CVT and an output; a three-speed transmission having an input connected to the output of the power mixer and an output connected to the input of the final drive.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: December 10, 2019
    Assignee: TRANSMISSION CVTCORP INC.
    Inventors: Jean-François Dionne, Jean-Robert Desmeules, Rémi Tremblay
  • Patent number: 10458544
    Abstract: A slip control method and arrangement for a driveline including a continuously variable transmission is described herein. The driveline includes a hydraulic slip arrangement that is so controlled as to slip when a torque higher than the usable torque attempts to pass through. Accordingly, the hydraulic slip arrangement prevents the prime mover from stalling.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: October 29, 2019
    Assignee: TRANSMISSION CVTCORP INC.
    Inventor: Daniel Girard
  • Publication number: 20190316675
    Abstract: A calibration method for a slip control arrangement of a driveline including a continuously variable transmission is described herein. The driveline includes a clutch that is so controlled as to slip when a torque higher than the usable torque attempts to pass through. Accordingly, the clutch prevents the prime mover from stalling. A calibration method to link a valve command value and a torque allowed to pass through the clutch includes preventing the vehicle from moving and increasing the pressure applied in the clutch while noting the torque % value developed by the prime mover.
    Type: Application
    Filed: April 10, 2019
    Publication date: October 17, 2019
    Applicant: Transmission CVTCORP Inc.
    Inventors: Jonathan Guérin, Jean-François Dionne
  • Patent number: 10308255
    Abstract: A slip control method and arrangement for a driveline including a continuously variable transmission is described herein. The driveline includes a clutch that is so controlled as to slip when a torque higher than the usable torque attempts to pass through. Accordingly, the clutch prevents the prime mover from stalling.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: June 4, 2019
    Assignee: TRANSMISSION CVTCORP INC.
    Inventors: Jean-François Dionne, Jean-Robert Desmeules, Jonathan Guérin, Daniel Girard
  • Publication number: 20180347685
    Abstract: A cooling arrangement to cool the rollers of a toroidal CVT is described herein. The cooling arrangement includes nozzles so configured and sized as to project cooling fluid onto the edge and onto the opposite top and bottom surfaces of the roller.
    Type: Application
    Filed: December 8, 2016
    Publication date: December 6, 2018
    Applicant: Transmission CVTCORP Inc.
    Inventors: Kenneth Huston, Mathieu Guertin, François Messier, Rémi Tremblay
  • Patent number: 10036456
    Abstract: A drive assembly including a CVT and a direction reversing mechanism is described herein. The direction reversing mechanism is such that the output of the drive assembly may rotate at variable speed in a first direction and at a fixed speed in a second direction.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: July 31, 2018
    Assignee: TRANSMISSION CVTCORP INC.
    Inventors: Jean-Francois Dionne, Daniel Girard
  • Patent number: 10012304
    Abstract: A continuously variable transmission (CVT) provided with an integrated gerotor pump that also acts as a rotation blocker is described herein. In one illustrated embodiment, the gerotor pump is used to pump lubrication and cooling fluid through a radiator and into the hollow shaft of the CVT.
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: July 3, 2018
    Assignee: TRANSMISSION CVTCORP INC.
    Inventor: Francois Messier
  • Patent number: 10006543
    Abstract: A method where the spin factor is looked up in a table; the slip factor is measured and the clamping pressure is adjusted to achieve a slip/spin ratio provided in a desired range is described herein. According to another aspect, an active mechanical clamping mechanism using a longitudinally movable contact point is also described.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: June 26, 2018
    Assignee: Transmission CVTCORP Inc.
    Inventors: Samuel Beaudoin, Paul Okulov, Alexandre Blouin, Christian McMahon, David Gauthier Roy, Francois Messier, Jean-Robert Desmeules, Kenneth Huston, Mathieu Guertin, Patrick Cyr Gagné, Patrick Raymond