Patents by Inventor Hafiz Shafeek Khafagy

Hafiz Shafeek Khafagy 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).

  • Publication number: 20180058353
    Abstract: A method to control engine stop-start in a vehicle is provided. The method includes a controller outputting an engine command to auto-start an engine based on detection of shifter position change to one of a first set of shifter positions and whether a first predetermined time threshold has expired following the shifter position change in response to presence of an engine auto-stop mode and one of a set of preselected drive modes. The vehicle may include an engine, a traction battery, and a controller. The traction battery selectively powers components of the vehicle when the engine is auto-stopped. The controller is programmed to, in response to detecting an engine auto-stop condition, one of a set of preselected drive modes, and a shifter position change to one of a first set of shifter positions with a brake application, output an engine command to engage engine auto-start.
    Type: Application
    Filed: August 23, 2016
    Publication date: March 1, 2018
    Inventors: Hafiz Shafeek Khafagy, Hank L. Kwong, David H. Schmitt, Jamal Kanso
  • Publication number: 20180043878
    Abstract: A vehicle includes an engine and a controller configured to autostop and autostart the engine. Engine autostops are conditioned on a vehicle speed condition. In addition, engine autostops are conditioned on a battery current threshold that changes as the speed of the vehicle changes.
    Type: Application
    Filed: August 11, 2016
    Publication date: February 15, 2018
    Inventors: Hafiz Shafeek KHAFAGY, Mark Douglas MALONE, Birgit Lisa SORGENFREI, Essam MOHAMED
  • Publication number: 20180023493
    Abstract: A method to control engine start-stop in a vehicle is provided. The method includes outputting via a controller an engine command to auto-start the engine based on detection of a predetermined vehicle condition affecting fuel economy of the vehicle, detection of a shift from neutral to another gear position, and whether a predetermined time threshold has expired following the shift in response to detection of a presence of an engine auto-stop mode and a neutral gear position. The predetermined vehicle condition may be a movement of the vehicle in a reverse direction. The predetermined vehicle condition may be a battery parameter being outside of predetermined range. The predetermined range may be based on a battery state of charge, a battery temperature, a battery voltage, or a battery load current. The predetermined vehicle condition may be a HVAC component activation.
    Type: Application
    Filed: July 19, 2016
    Publication date: January 25, 2018
    Inventors: Hafiz Shafeek Khafagy, Chad Everette Griffin, Kevin Muncy
  • Publication number: 20180003143
    Abstract: A vehicle includes electric brakes, an engine with a starter, a battery and a controller. The battery has a voltage and is configured to power the starter, the electric brakes, and the controller. The controller is configured to, in response to a speed of the vehicle falling within a specified range without propulsive demand and while the voltage is greater than an upper voltage that varies based on a charge needed to engage the brakes to stop the vehicle, stop the engine.
    Type: Application
    Filed: July 1, 2016
    Publication date: January 4, 2018
    Inventors: Hafiz Shafeek Khafagy, Daniel Benjamin KOK, Ahmed AWADI, Raed YOUNIS, Mohannad HAKEEM
  • Patent number: 9850965
    Abstract: A system and method for operating a vehicle equipped with an automatic stop and start system is disclosed. The vehicle includes an internal combustion engine, an automatic transmission and a fluid launch device with an impeller disconnect clutch. A controller may initiate an automatic stop or start of the engine under certain operating conditions. During an engine start/stop event, the engine is automatically shut down and the impeller clutch of the fluid launch device may be disengaged to decouple the engine and transmission from the driveline to provide for improved fuel economy and reduced emissions.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: December 26, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Hafiz Shafeek Khafagy, Siraj Siddiqui, Steven Anatole Frait, Alexander O'Connor Gibson, Mohannad Hakeem
  • Publication number: 20170356415
    Abstract: A vehicle engine start/stop control method includes shifting an automatic transmission to a park or neutral position and auto-stopping the engine in response the automatic transmission being in the park or neutral position for a predetermined period of time that begins with a shift of the automatic transmission to the park or neutral position.
    Type: Application
    Filed: June 8, 2016
    Publication date: December 14, 2017
    Inventors: Hafiz Shafeek KHAFAGY, Eric Michael RADEMACHER, Hank L. KWONG, Siraj SIDDIQUI, Giuseppe Domenico SUFFREDINI
  • Patent number: 9821799
    Abstract: An exemplary pump condition response method includes, in response to a pump condition, operating an engine to discontinue or prevent a first stop-start cycle during a drive cycle. The method permitting a second stop-start cycle during the drive cycle.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: November 21, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Hafiz Shafeek Khafagy, Brandon David Lint, Tim John Kropf, William Rey Patterson, Jr., Edward Katynski, Richard Reynolds Hathaway
  • Patent number: 9816474
    Abstract: A controller may be configured to respond to an engine start condition that occurs while an SOC of the battery is within a first predetermined range by running an engine until first occurrence of the start condition ceasing or the SOC achieving a target. The controller may further be configured to respond to an engine start condition that occurs while the SOC is within a second predetermined range less than the first by running the engine until the SOC achieves the target.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: November 14, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Hafiz Shafeek Khafagy, Hanyang Chen, Gjergji Shaska, Ahmed Awadi, John T. Bremmer, Sr.
  • Publication number: 20170320497
    Abstract: A system and method for operating an automatic start/stop system in a motor vehicle having an internal combustion engine, an automatic transmission and a torque converter with an impeller disconnect clutch is disclosed. A controller may implement an engine start/stop system by, at appropriate times, stopping engine by halting fuel and restarting engine when propulsion is needed. During an engine start/stop event, the engine is automatically shut down and the impeller clutch of the torque converter may be disengaged to decouple the impeller and the engine to provide for fuel and emissions savings.
    Type: Application
    Filed: May 3, 2016
    Publication date: November 9, 2017
    Inventors: Hafiz Shafeek KHAFAGY, Siraj SIDDIQUI, Yuji FUJII, Steven Anatole FRAIT
  • Publication number: 20170321767
    Abstract: A system and method for operating a vehicle equipped with an automatic stop and start system is disclosed. The vehicle includes an internal combustion engine, an automatic transmission and a fluid launch device with an impeller disconnect clutch. A controller may initiate an automatic stop or start of the engine under certain operating conditions. During an engine start/stop event, the engine is automatically shut down and the impeller clutch of the fluid launch device may be disengaged to decouple the engine and transmission from the driveline to provide for improved fuel economy and reduced emissions.
    Type: Application
    Filed: May 3, 2016
    Publication date: November 9, 2017
    Inventors: Hafiz Shafeek KHAFAGY, Siraj SIDDIQUI, Steven Anatole FRAIT, Alexander O'Connor GIBSON, Mohannad HAKEEM
  • Patent number: 9783187
    Abstract: A vehicle includes an engine and a controller programmed to autostart and autostop the engine. In an autostopped state, engine autostarts are inhibited in the presence of transient currents caused by activation of electrical loads. Engine autostarts are inhibited for a predetermined duration after activation of the electrical load when a battery current is greater than an autostart current threshold.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: October 10, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Hafiz Shafeek Khafagy, David Celinske, Hanyang B. Chen, Mohannad Hakeem, Rashad Jamal Allen
  • Publication number: 20170267242
    Abstract: A stop/start hybrid vehicle includes an engine configured for stopping and restarting during travel, a multiple-ratio transmission, a brake pedal, and an electronic parking brake. The transmission can be shifted into reverse gear either when the brake pedal is applied or unapplied. At least one controller is programmed to control the vehicle under these scenarios. If the engine is off and the brake pedal is applied when the transmission is shifted into reverse, the controller restarts the engine. If the engine is off and the brake pedal is unapplied when the transmission is shifted into reverse, the controller inhibits the engine from restarting until the brake pedal is applied. The controller can also be programmed to apply the electronic parking brake while the brake pedal remains unapplied after a predetermined time from the transmission being shifted into the reverse gear.
    Type: Application
    Filed: March 17, 2016
    Publication date: September 21, 2017
    Inventors: Hafiz Shafeek KHAFAGY, Kirk PEBLEY, Eric Michael RADEMACHER, Hank L. KWONG, Bang Kim CAO
  • Publication number: 20170259803
    Abstract: A vehicle includes an engine cranked by an electric machine powered by a first battery, a first plurality of components powered by the first battery, a second plurality of components powered by a second battery, and a processor programmed to isolate the second battery and associated components from the first battery and associated components at least during engine cranking. The first battery may be a low voltage battery having a first chemistry, such as a lead-acid battery with associated components that are less sensitive to voltage variation induced by engine cranking or starting, such as heated mirrors, seats, wipers, a climate control blower, power windows/doors, and auxiliary pumps. The second battery may be a low or high voltage battery having a second chemistry, such as a lithium-ion battery with associated components that may be more sensitive to low voltage during engine cranking/starting, such as lighting, electronics, and infotainment systems.
    Type: Application
    Filed: March 10, 2016
    Publication date: September 14, 2017
    Inventors: Hafiz Shafeek KHAFAGY, Gjergji SHASKA, Kirk PEBLEY, Marirose ILKKA, Zeljko DELJEVIC
  • Publication number: 20170253245
    Abstract: A method of controlling a stop-start vehicle includes, in response to an engine being in an auto-stopped condition and a signal indicative of a driver exiting the vehicle, maintaining the engine in the auto-stopped condition. The method additionally includes securing vehicle wheels against rotation and reducing a convenience feature power consumption.
    Type: Application
    Filed: March 3, 2016
    Publication date: September 7, 2017
    Inventors: Hafiz Shafeek KHAFAGY, Mathew Alan BOESCH, Mark Edward ZYSKOWSKI, Mohannad HAKEEM, Allen MAGOLAN
  • Publication number: 20170254309
    Abstract: A stop-start vehicle and a method of controlling a stop-start vehicle include a controller configured to, in response to a power-reset event, inhibit an engine auto-stop function. The controller is additionally configured to, in response to a successful key start event subsequent the power-reset event, cease the inhibiting of the engine auto-stop function.
    Type: Application
    Filed: March 2, 2016
    Publication date: September 7, 2017
    Inventors: Hafiz Shafeek KHAFAGY, Hanyang B. CHEN, David W. LINDEN, Michael J. IRBY, Karen PRICE
  • Publication number: 20170253125
    Abstract: A method of controlling power to a vehicle accessory gradually shuts down power to the vehicle accessory and gradually restores power to the vehicle accessory. After a request for an auto-shutdown of an internal combustion engine of a vehicle is detected, power to the vehicle accessory is reduced on a predetermined schedule responsive to such detection. The occurrence of a restart of the internal combustion engine of a vehicle is determined, and power supplied to the vehicle accessory is increased on a predetermined schedule responsive to the restart.
    Type: Application
    Filed: March 7, 2016
    Publication date: September 7, 2017
    Applicant: Ford Global Technologies, LLC
    Inventors: Hafiz Shafeek Khafagy, Farouq Mozip, Jonathan Wentworth, Eric Gerd Schaefer, James C. Rollinson
  • Publication number: 20170240166
    Abstract: An exemplary pump condition response method includes, in response to a pump condition, operating an engine to discontinue or prevent a first stop-start cycle during a drive cycle. The method permitting a second stop-start cycle during the drive cycle.
    Type: Application
    Filed: February 18, 2016
    Publication date: August 24, 2017
    Inventors: Hafiz Shafeek Khafagy, Brandon David Lint, Tim John Kropf, William Rey Patterson, JR., Edward Katynski, Richard Reynolds Hathaway
  • Patent number: 9731722
    Abstract: A vehicle includes an engine having auto-stop and auto-start conditions. The vehicle additionally includes a braking system having an auto-hold function. The auto-hold function is configured to, after braking the vehicle to a full stop, automatically apply braking torque independent of a brake pedal position. The vehicle further includes a controller configured to, in response to the engine being in the auto-stop condition, the auto-hold function automatically applying braking torque, and a gear shifter being moved out of a gear other than PARK, maintain the engine in the auto-stop condition.
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: August 15, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Hafiz Shafeek Khafagy, Kirk Pebley, Chad Michael Korte
  • Patent number: 9731698
    Abstract: A start-stop vehicle includes an engine configured to automatically stop and start during travel. The vehicle further includes a gear lever, a brake pedal, and a controller. The controller is programmed to restart the engine or inhibit restarting of the engine depending upon one or more sets of conditions of the vehicle. A method is also present for operating the vehicle based upon the one or more sets of conditions.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: August 15, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Hafiz Shafeek Khafagy, Chad Everette Griffin, Hank L. Kwong, Ahmed Awadi, Richard John Hippley
  • Publication number: 20170203752
    Abstract: A vehicle includes an engine and a controller programmed to autostart and autostop the engine. In an autostopped state, engine autostarts are inhibited in the presence of transient currents caused by activation of electrical loads. Engine autostarts are inhibited for a predetermined duration after activation of the electrical load when a battery current is greater than an autostart current threshold.
    Type: Application
    Filed: January 19, 2016
    Publication date: July 20, 2017
    Inventors: Hafiz Shafeek Khafagy, David Celinske, Hanyang B. Chen, Mohannad Hakeem, Rashad Jamal Allen