Patents by Inventor Marvin Correia

Marvin Correia 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).

  • Method and system for determining clutch assembly vent time for transmission shift control
    Patent number: 9022902
    Abstract: A method and transmission control unit configured to improve shift event performance in a vehicle with an automatic transmission by determining a vent time for release of a clutch assembly in a transmission of a vehicle. The vehicle must be stopped and a gear selector in the vehicle must be set to a drive condition. If these conditions are met, the clutch assembly is vented. The vent time from when venting begins to when a turbine (or input shift) speed of the transmission rises is tracked. Once the turbine speed of the transmission rises, the clutch assembly is reapplied. The clutch assembly vent time is set based on the tracked vent time.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: May 5, 2015
    Assignee: FCA US LLC
    Inventors: Gang Chen, Hussein Dourra, Marvin Correia
  • METHOD AND SYSTEM FOR DETERMINING CLUTCH ASSEMBLY VENT TIME FOR TRANSMISSION SHIFT CONTROL
    Publication number: 20130228409
    Abstract: A method and transmission control unit configured to improve shift event performance in a vehicle with an automatic transmission by determining a vent time for release of a clutch assembly in a transmission of a vehicle. The vehicle must be stopped and a gear selector in the vehicle must be set to a drive condition. If these conditions are met, the clutch assembly is vented. The vent time from when venting begins to when a turbine (or input shift) speed of the transmission rises is tracked. Once the turbine speed of the transmission rises, the clutch assembly is reapplied. The clutch assembly vent time is set based on the tracked vent time.
    Type: Application
    Filed: March 1, 2012
    Publication date: September 5, 2013
    Applicant: CHRYSLER GROUP LLC
    Inventors: Gang Chen, Hussein Dourra, Marvin Correia