Patents by Inventor Dongdong Dee LI

Dongdong Dee LI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Transmission with selectable one-way clutch
    Patent number: 11078970
    Abstract: A vehicle transmission includes a plurality of friction clutches and a selectable one-way clutch. The transmission also includes a controller programmed to, in response to detecting a component fault, switch the selectable one-way clutch from a passive state to an active state by commanding engagement of a first subset of the friction clutches to establish a slip elimination state. The controller is also programmed to, following establishment of the slip elimination state, command the selectable one-way clutch to the active state.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: August 3, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Dongdong Dee Li, Stephen Michael Cicala, Conor Edward Sullivan, Richard Reynolds Hathaway
  • Method of controlling transmission in neutral
    Patent number: 11041534
    Abstract: Ideally, when a transmission is in Neutral, no torque should be exerted on the vehicle wheels by the powertrain. However, even with all clutches in a gearbox disengaged, some torque may be transmitted from a turbine shaft to the transmission output due to clutch drag and transmission component inertia. To avoid transmitting torque, a subset of clutches may be engaged to produce an input tie-up state, this holding the turbine shaft against rotation while permitting rotation of the output element.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: June 22, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Stephen Michael Cicala, Markian Oleh Diakiw, Conor Edward Sullivan, Dongdong Dee Li, Timothy Fedullo, Bradley Dean Riedle, Scott Joseph Gittins, Peter Wincek
  • TRANSMISSION WITH SELECTABLE ONE-WAY CLUTCH
    Publication number: 20200032863
    Abstract: A vehicle transmission includes a plurality of friction clutches and a selectable one-way clutch. The transmission also includes a controller programmed to, in response to detecting a component fault, switch the selectable one-way clutch from a passive state to an active state by commanding engagement of a first subset of the friction clutches to establish a slip elimination state. The controller is also programmed to, following establishment of the slip elimination state, command the selectable one-way clutch to the active state.
    Type: Application
    Filed: July 30, 2019
    Publication date: January 30, 2020
    Inventors: Dongdong Dee Li, Stephen Michael Cicala, Conor Edward Sullivan, Richard Reynolds Hathaway
  • METHOD OF CONTROLLING TRANSMISSION IN NEUTRAL
    Publication number: 20200032864
    Abstract: Ideally, when a transmission is in Neutral, no torque should be exerted on the vehicle wheels by the powertrain. However, even with all clutches in a gearbox disengaged, some torque may be transmitted from a turbine shaft to the transmission output due to clutch drag and transmission component inertia. To avoid transmitting torque, a subset of clutches may be engaged to produce an input tie-up state, this holding the turbine shaft against rotation while permitting rotation of the output element.
    Type: Application
    Filed: July 29, 2019
    Publication date: January 30, 2020
    Inventors: Stephen Michael CICALA, Markian Oleh DIAKIW, Conor Edward SULLIVAN, Dongdong Dee LI, Timothy FEDULLO, Bradley Dean RIEDLE, Scott Joseph GITTINS, Peter WINCEK
  • Method and control for operating transmission during clutch failure
    Patent number: 10295053
    Abstract: A vehicle includes a transmission having a first neutral with a first combination of engaged clutches and a second neutral with a second combination of engaged clutches. The second neutral has more engaged clutches than the first neutral. A vehicle controller is programmed to, in response to a request to shift from the first to the second neutral and a failed-on clutch being detected, inhibit the shift to remain in the first neutral.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: May 21, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Stephen Michael Cicala, John Randall Armstead, Dongdong Dee Li, Alexander Phillip McDonnell, Bradley D. Riedle, Conor Edward Sullivan
  • Method and control for operating transmission during clutch failure when shifting from gear to neutral
    Patent number: 10295054
    Abstract: A vehicle includes a transmission having a first neutral with a first combination of engaged clutches and a second neutral with a second combination of engaged clutches. The first neutral has more engaged clutches than the second. A controller is programmed to, in response to a request to shift from a drive gear to the first neutral and a clutch of the drive gear being failed-on, shift to the second neutral.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: May 21, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: John Randall Armstead, Stephen Michael Cicala, Alexander Phillip McDonnell, Dongdong Dee Li, Conor Edward Sullivan
  • METHOD AND CONTROL FOR OPERATING TRANSMISSION DURING CLUTCH FAILURE
    Publication number: 20180119805
    Abstract: A vehicle includes a transmission having a first neutral with a first combination of engaged clutches and a second neutral with a second combination of engaged clutches. The second neutral has more engaged clutches than the first neutral. A vehicle controller is programmed to, in response to a request to shift from the first to the second neutral and a failed-on clutch being detected, inhibit the shift to remain in the first neutral.
    Type: Application
    Filed: October 13, 2017
    Publication date: May 3, 2018
    Inventors: Stephen Michael CICALA, John Randall ARMSTEAD, Dongdong Dee LI, Alexander Phillip McDONNELL, Bradley D. RIEDLE, Conor Edward SULLIVAN
  • METHOD AND CONTROL FOR OPERATING TRANSMISSION DURING CLUTCH FAILURE WHEN SHIFTING FROM GEAR TO NEUTRAL
    Publication number: 20180119806
    Abstract: A vehicle includes a transmission having a first neutral with a first combination of engaged clutches and a second neutral with a second combination of engaged clutches. The first neutral has more engaged clutches than the second. A controller is programmed to, in response to a request to shift from a drive gear to the first neutral and a clutch of the drive gear being failed-on, shift to the second neutral.
    Type: Application
    Filed: October 13, 2017
    Publication date: May 3, 2018
    Inventors: John Randall ARMSTEAD, Stephen Michael CICALA, Alexander Phillip McDONNELL, Dongdong Dee LI, Conor Edward SULLIVAN