Patents by Inventor Salim Hamam

Salim Hamam 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).

  • Techniques for robust park lock control
    Patent number: 9150214
    Abstract: A technique includes receiving, at a controller of a vehicle, the controller including one or more processors, a first request to calibrate a park lock system of the vehicle. The calibration can include commanding, by the controller, a first actuator to move a second actuator to maximum engagement/disengagement positions indicating maximum engagement/disengagement of a park pawl with/from a park gear of a transmission. The calibration can include determining, at the controller, full engagement/disengagement positions for the second actuator based on the maximum engagement/disengagement positions. The controller can then control the engagement/disengagement of the park lock system using the full engagement/disengagement positions for the second actuator, respectively.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: October 6, 2015
    Assignee: FCA US LLC
    Inventors: Feisel Weslati, Behrouz Ashrafi, Chandan Lakshmanaiah, Salim Hamam
  • TECHNIQUES FOR ROBUST PARK LOCK CONTROL
    Publication number: 20150025750
    Abstract: A technique includes receiving, at a controller of a vehicle, the controller including one or more processors, a first request to calibrate a park lock system of the vehicle. The calibration can include commanding, by the controller, a first actuator to move a second actuator to maximum engagement/disengagement positions indicating maximum engagement/disengagement of a park pawl with/from a park gear of a transmission. The calibration can include determining, at the controller, full engagement/disengagement positions for the second actuator based on the maximum engagement/disengagement positions. The controller can then control the engagement/disengagement of the park lock system using the full engagement/disengagement positions for the second actuator, respectively.
    Type: Application
    Filed: July 18, 2013
    Publication date: January 22, 2015
    Inventors: Feisel Weslati, Behrouz Ashrafi, Chandan Lakshmanaiah, Salim Hamam
  • Main pump to auxiliary pump hand-off strategy for maintaining hydraulic pressure in hybrid transmission
    Patent number: 8738206
    Abstract: A method and system of providing hydraulic pressure during a transition from gas-powered engine operation to electric motor operation in a hybrid electric vehicle. During the transition, main pressure arising from operation of a gas-powered engine with a main pump is matched with auxiliary pressure arising from operation of a battery-powered electric motor with an auxiliary pump. After matching the main and auxiliary pressures, the auxiliary pressure is boosted to an operational pressure in response to a triggering event.
    Type: Grant
    Filed: January 6, 2012
    Date of Patent: May 27, 2014
    Assignee: Chrysler Group LLC
    Inventors: Joseph Ivacko, Laszlo M. Hideg, Salim Hamam
  • MAIN PUMP TO AUXILIARY PUMP HAND-OFF STRATEGY FOR MAINTAINING HYDRAULIC PRESSURE IN HYBRID TRANSMISSION
    Publication number: 20130179013
    Abstract: A method and system of providing hydraulic pressure during a transition from gas-powered engine operation to electric motor operation in a hybrid electric vehicle. During the transition, main pressure arising from operation of a gas-powered engine with a main pump is matched with auxiliary pressure arising from operation of a battery-powered electric motor with an auxiliary pump. After matching the main and auxiliary pressures, the auxiliary pressure is boosted to an operational pressure in response to a triggering event.
    Type: Application
    Filed: January 6, 2012
    Publication date: July 11, 2013
    Applicant: Chrysler Group LLC
    Inventors: Joseph Ivacko, Laszlo M. Hideg, Salim Hamam