Patents by Inventor Aymail Ismail

Aymail Ismail 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).

  • Two-step valvetrain preposition control strategy
    Patent number: 9765705
    Abstract: A control technique for an engine having a two-step variable valve lift system includes a controller receiving a pressure in an intake manifold of the engine from a manifold absolute pressure (MAP) sensor and a position of an EGR valve of the engine from an exhaust gas recirculation (EGR) sensor. In response to the controller detecting an upcoming HL-to-LL valve state transition, a set of airflow actuators of the engine is controlled, based on the intake manifold pressure and the EGR valve position, to generate a first torque reserve. In response to generating the first torque reserve, the controller then commands the HL-to-LL transition and depletion of the first torque reserve during the HL-to-LL transition to mitigate torque disturbance associated with this transition.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: September 19, 2017
    Assignee: FCA US LLC
    Inventors: John R Bucknell, Aymail Ismail, Ethan E Bayer, Drushan Mavalankar
  • TWO-STEP VALVETRAIN PREPOSITION CONTROL STRATEGY
    Publication number: 20170145927
    Abstract: A control technique for an engine having a two-step variable valve lift system includes a controller receiving a pressure in an intake manifold of the engine from a manifold absolute pressure (MAP) sensor and a position of an EGR valve of the engine from an exhaust gas recirculation (EGR) sensor. In response to the controller detecting an upcoming HL-to-LL valve state transition, a set of airflow actuators of the engine is controlled, based on the intake manifold pressure and the EGR valve position, to generate a first torque reserve. In response to generating the first torque reserve, the controller then commands the HL-to-LL transition and depletion of the first torque reserve during the HL-to-LL transition to mitigate torque disturbance associated with this transition.
    Type: Application
    Filed: November 24, 2015
    Publication date: May 25, 2017
    Inventors: John R. Bucknell, Aymail Ismail, Ethan E. Bayer, Drushan Mavalankar