Patents by Inventor Christopher E. Whitney

Christopher E. Whitney 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: 20140316683
    Abstract: A torque requesting module generates a first torque request for a spark ignition engine based on driver input. A torque conversion module converts the first torque request into a second torque request. A setpoint control module generates air and exhaust setpoints for the spark ignition engine based on the second torque request. A model predictive control (MPC) module identifies sets of possible target values based on the air and exhaust setpoints, generates predicted parameters based on a model of the spark ignition engine and the sets of possible target values, respectively, selects one of the sets of possible target values based on the predicted parameters, and sets target values based on the possible target values of the selected one of the sets. A throttle actuator module controls opening of a throttle valve based on a first one of the target values.
    Type: Application
    Filed: June 6, 2013
    Publication date: October 23, 2014
    Inventors: CHRISTOPHER E. WHITNEY, Kevin C. Wong, Paul R. Nahra, Julian R. Verdejo
  • Publication number: 20140311446
    Abstract: A torque requesting module generates a first torque request for a spark ignition engine based on driver input. A torque conversion module converts the first torque request into a second torque request. A setpoint module generates setpoints for the spark ignition engine based on the second torque request. A model predictive control (MPC) module: identifies sets of possible target values based on the setpoints; generates predicted parameters based on a model of the spark ignition engine and the sets of possible target values, respectively; selects one of the sets of possible target values based on the predicted parameters; and sets target values based on the possible target values of the selected one of the sets. A first constraint module selectively sets a predetermined range for first one of the target values. The MPC module limits the first one of the target values to within the predetermined range.
    Type: Application
    Filed: June 6, 2013
    Publication date: October 23, 2014
    Inventors: Christopher E. Whitney, Ning Jin, Robert J. Genslak, Jyh-Shin Chen, Kevin C. Wong
  • Publication number: 20140316681
    Abstract: A torque requesting module generates a first torque request for a spark ignition engine based on driver input. A torque conversion module converts the first torque request into a second torque request. A setpoint control module, based on the second torque request, generates a mass of air per cylinder (APC) setpoint, an exhaust gas recirculation (EGR) setpoint, an intake valve phasing setpoint, and an exhaust valve phasing setpoint. A model predictive control (MPC) module: identifies sets of possible target values based on the APC, EGR, intake valve phasing, and exhaust valve phasing setpoints; generates predicted parameters based on a model of the spark ignition engine and the sets of possible target values, respectively; selects one of the sets of possible target values based on the predicted parameters; and sets target values based on the possible target values of the selected one of the sets.
    Type: Application
    Filed: June 6, 2013
    Publication date: October 23, 2014
    Inventors: CHRISTOPHER E. WHITNEY, Sharon L. Storch
  • Publication number: 20140316682
    Abstract: A torque requesting module generates a first torque request for a spark ignition engine based on driver input. A torque conversion module converts the first torque request into a second torque request. A setpoint control module generates setpoints for the spark ignition engine based on the second torque request. A vacuum requesting module requests an amount of vacuum within an intake manifold of the engine. The setpoint module selectively adjusts at least one of the setpoints based on the amount of vacuum requested. A model predictive control (MPC) module: identifies sets of possible target values based on the setpoints; generates predicted parameters based on a model of the spark ignition engine and the sets of possible target values, respectively; selects one of the sets of possible target values based on the predicted parameters; and sets target values based on the possible target values of the selected one of the sets.
    Type: Application
    Filed: June 6, 2013
    Publication date: October 23, 2014
    Inventors: CHRISTOPHER E. WHITNEY, ROBERT J. GENSLAK, JYH-SHIN CHEN
  • Patent number: 8845481
    Abstract: A method for operating a powertrain system including a torque machine coupled to an internal combustion engine that is coupled to a transmission includes, upon commanding a shift in a transmission operating range, activating an immediate response mode to effect the shift. Activating the immediate response mode includes controlling the engine to achieve a predicted engine torque command, and controlling motor torque of the torque machine in response to a difference between an actual engine torque and an immediate crankshaft torque for shift command. An arbitrated predicted motor torque is determined. A possible crankshaft torque is determined in response to the arbitrated predicted motor torque and the predicted engine torque command. Operation of the transmission at the end of the shift event is commanded in response to the possible crankshaft torque. A predicted response mode is activated to complete the shift in the transmission operating range.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: September 30, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Christopher E. Whitney, Adam J. Heisel
  • Publication number: 20140277989
    Abstract: A system according to the principles of the present disclosure includes a cruise control module, an engine control module, and a brake control module. The cruise control module determines a cruise torque request based on at least one of a following distance of a vehicle and a rate at which the vehicle is approaching an object. The engine control module determines a negative torque capacity of a powertrain. The powertrain includes an engine and an electric motor. The brake control module applies a friction brake when the cruise torque request is less than the negative torque capacity of the powertrain.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: GM Global Technology Operations LLC
    Inventors: ERIC E. KRUEGER, Matthew J. Klemmer, Kiana Bassey, Christopher E. Whitney, Patrick J. O'Leary
  • Patent number: 8838316
    Abstract: A method of warming a catalyst of an exhaust gas treatment system of a hybrid vehicle includes transitioning a rotational speed of an engine to within a pre-defined speed range with an electric motor, and reducing an engine manifold pressure to within a pre-defined pressure range. The engine is fueled after the rotational speed of the engine is within the pre-defined speed range, and the engine manifold pressure is within the pre-defined pressure range. While the engine is being fueled, the engine manifold pressure is increased to within a catalyst light-off pressure range, and the torque output of the engine is increased to within a catalyst light-off operating torque range. The exhaust gas produced from the operation of the engine within the pre-defined speed range, within the catalyst light-off pressure range, and within the catalyst light-off operating torque range heats the catalyst while minimizing emissions.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: September 16, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Christopher E. Whitney, Jeffrey M. Hutmacher, J Michael Ellenberger, James B. Nicholson, Rafat F Hattar
  • Patent number: 8825319
    Abstract: A method of controlling the performance of a vehicle from a stationary condition includes operating a vehicle powertrain in a creep mode following the disengagement of a driver-operated braking device; and operating the vehicle powertrain in a launch mode following an engagement of a driver-operated acceleration device subsequent to the disengagement of the driver-operated braking device. Operating a vehicle powertrain in a creep mode includes: applying a friction clutch to couple an engine crankshaft of the vehicle powertrain with an input shaft of the transmission; determining a torque command to accelerate the vehicle powertrain at a predetermined rate; providing the torque command to an engine controller to controllably increase the input torque to the transmission; and operating a closed loop engine speed control module to prevent the crankshaft speed from slowing below a predetermined engine idle speed.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: September 2, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Christopher E. Whitney, Klaus Pochner, Colin Hultengren, Krishnedu Kar
  • Patent number: 8798835
    Abstract: A hybrid diesel-electric powertrain includes a diesel engine in power flow communication with an electric motor and a controller. The diesel engine and electric motor are each configured to generate a respective torque in response to a provided torque command. The controller is in communication with the electric motor, the diesel engine, and an accelerator pedal, and configured to receive a driver torque request from the accelerator pedal. In response to the driver torque request, the controller is further configured to command the diesel engine to generate an output torque that is less than a smoke limit torque, and command the electric motor to generate an output torque equal to the difference between the driver torque request and the output torque of the diesel engine.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: August 5, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Christopher E. Whitney, Luca Scavone, Anthony H. Heap
  • Patent number: 8744716
    Abstract: An engine control system includes a mode selection module that is configured to select an operating mode from one of an open loop control mode, a torque control mode, and a speed control mode based on an engine speed and a driver input. An axle torque arbitration (ABA) module generates ABA predicted and immediate torque requests based on the driver input. A speed control (SC) module generates a first set of SC predicted and immediate torque requests based on engine speed. A propulsion torque arbitration (PTA) module generates PTA predicted and immediate torque requests based on one of the ABA predicted and immediate torque requests and the first set of SC predicted and immediate torque requests based on the operating mode. A torque output control module controls output torque of an engine based on the PTA predicted and immediate torque requests.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: June 3, 2014
    Inventors: Krishnendu Kar, Michael Livshiz, Christopher E. Whitney, Cheryl A. Williams, Etsuko Muraji Stewart, Matthew M. Manning
  • Patent number: 8731751
    Abstract: A hybrid controller for controlling a hybrid vehicle is set forth. The hybrid vehicle has an engine, an electric motor and an engine controller determining a crankshaft torque. The hybrid controller includes an optimization module determining an electric motor torque, determining an engine torque and communicating the engine torque from the hybrid controller to the engine controller. The hybrid controller also includes a motor control module controlling the electric motor based on the electric motor torque.
    Type: Grant
    Filed: January 19, 2009
    Date of Patent: May 20, 2014
    Inventors: Robert C. Simon, Jr., Christopher E. Whitney, William R. Cawthorne, John L. Lahti, Douglas J. Babcock, Vivek Mehta, Anthony H. Heap, Todd R. Shupe, Cheryl A. Williams, Leonard G. Wozniak, Ning Jin, Birendra P. Bhattarai, James L. Worthing
  • Publication number: 20140123938
    Abstract: A throttle control system includes a target pressure module, a torque determination module, and a target opening module. The target pressure module determines an induction noise value based on an engine operating parameter and determines a target pressure downstream of a throttle valve of an engine based on a pressure at an inlet of the throttle valve and the induction noise value. The torque determination module determines a torque request for the engine based on the target pressure. The target opening module determines a target opening for the throttle valve based on the torque request and selectively adjusts opening of the throttle valve based on the target opening.
    Type: Application
    Filed: February 1, 2013
    Publication date: May 8, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Christopher E. Whitney, Jeffrey M. Kaiser
  • Patent number: 8696517
    Abstract: A control system for use with an engine and a transmission in a vehicle is provided that includes at least one controller having a processor with at least one stored algorithm that determines different crankshaft torque capacities associated with different respective torque actuators including a relatively slow torque actuator, such as an airflow actuator, and at least one relatively fast torque actuator, such as a spark actuator or a fuel actuator. The algorithm determines a torque actuation range over which to modify engine torque during an oncoming shift of the transmission. The torque actuation range may be based at least partially on a target gear of the upshift, desired shift duration, and a vehicle operating condition indicative of an operator intent regarding shift duration. Requests for torque modification by use of the torque actuators are then made to provide the torque actuation range.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: April 15, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Christopher E. Whitney, Mark A. Schang, Jeffrey M. Kaiser, Andrew W. Baur, Ning Jin
  • Publication number: 20140100728
    Abstract: A method of warming a catalyst of an exhaust gas treatment system of a hybrid vehicle includes transitioning a rotational speed of an engine to within a pre-defined speed range with an electric motor, and reducing an engine manifold pressure to within a pre-defined pressure range. The engine is fueled after the rotational speed of the engine is within the pre-defined speed range, and the engine manifold pressure is within the pre-defined pressure range. While the engine is being fueled, the engine manifold pressure is increased to within a catalyst light-off pressure range, and the torque output of the engine is increased to within a catalyst light-off operating torque range. The exhaust gas produced from the operation of the engine within the pre-defined speed range, within the catalyst light-off pressure range, and within the catalyst light-off operating torque range heats the catalyst while minimizing emissions.
    Type: Application
    Filed: October 9, 2012
    Publication date: April 10, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Christopher E. Whitney, Jeffrey M. Hutmacher, J. Michael Ellenberger, James B. Nicholson, Rafat F. Hattar
  • Publication number: 20140076279
    Abstract: An engine control system for a vehicle, includes a delay and rate limit module, a throttle control module, a phaser control module, and an exhaust gas recirculation (EGR) control module. The delay and rate limit module applies a delay and a rate limit to a first torque request to produce a second torque request. The throttle control module determines a target throttle opening based on the second torque request and selectively adjusts a throttle valve based on the target throttle opening. The phaser control module determines target intake and exhaust phasing values based on the second torque request and selectively adjusts intake and exhaust valve phasers based on the target intake and exhaust phasing values, respectively. The EGR control module determines a target EGR opening based on the first torque request and selectively adjusts an EGR valve based on the target EGR opening.
    Type: Application
    Filed: November 27, 2012
    Publication date: March 20, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Michael Livshiz, Jeffrey M. Kaiser, Christopher E. Whitney, Gerald J. Hysko, JR., David A. White, B. Jerry Song
  • Publication number: 20140074373
    Abstract: A control system for an engine includes a target air per cylinder (APC) module, a target area module, and a phaser scheduling module. The target APC module determines a target APC based on a target spark timing, a target intake cam phaser angle, and a target exhaust cam phaser angle. The target area module determines a target opening of a throttle valve of the engine based on the target spark timing, the target intake cam phaser angle, and the target exhaust cam phaser angle. The target area module controls the throttle valve based on the target opening. The phaser scheduling module determines the target intake and exhaust cam phaser angles based on the target APC. The phaser scheduling module controls intake and exhaust cam phasers of the engine based on the target intake and exhaust cam phaser angles, respectively.
    Type: Application
    Filed: September 13, 2012
    Publication date: March 13, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Michael Livshiz, Jeffrey M. Kaiser, Timothy M. Karnjate, Christopher E. Whitney, Timothy J. Hartrey, Gregory J. York
  • Patent number: 8657721
    Abstract: A powertrain system includes an engine control module that generates a negative torque transition signal based on a pending negative torque event of an engine. A transmission control module receives the negative torque transition signal from the engine control module. The transmission control module increases a slip speed of a torque converter clutch in preparation for the pending negative torque event by adjusting pressure in the torque converter clutch prior to the pending negative torque event. The transmission control module decreases the slip speed in the torque converter clutch based on completion of a transition at least one of to the pending negative torque event and from the pending negative torque event.
    Type: Grant
    Filed: May 5, 2011
    Date of Patent: February 25, 2014
    Inventors: Christopher E. Whitney, Jeremy V. Horgan, Scott A. Hearld, Lars Mikael Buur, Ryan Goode, Krishnendu Kar
  • Patent number: 8635004
    Abstract: A control system includes an axle torque arbitration module, a power security module, a propulsion torque arbitration module, and an actuation module. The axle torque arbitration module determines an axle torque request based on a driver input and a vehicle speed. The power security module determines a secured torque request based on the axle torque request, the vehicle speed, and an engine speed. The propulsion torque arbitration module determines a propulsion torque request based on the axle torque request and the secured torque request. The actuation module controls at least one of air, spark, and fuel provided to a cylinder of an engine based on the propulsion torque request.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: January 21, 2014
    Inventors: Christopher E. Whitney, Michael Livshiz
  • Patent number: 8631783
    Abstract: A control system and method for controlling an engine includes a control module. The control module includes an evaporation control valve module closing a canister purge valve during a system diagnostic. A torque determination module determines a torque change for an end of the system diagnostic. A torque adjustment module changes an engine torque to a changed torque corresponding to the torque change. The evaporation control valve module opens the purge valve at the end of the diagnostic.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: January 21, 2014
    Inventors: Lan Wang, Zhong Wang, Christopher E. Whitney, Jinchun Peng, Ian J. Mac Ewen
  • Patent number: 8626411
    Abstract: A control system for a vehicle, comprises a torque determination module, a control module, and a transmission control module. The torque determination module determines torque produced by an internal combustion engine. The control module sets a signal to an active state when the torque is greater than a predetermined torque and a slip amount between an engine output speed and a transmission input speed is zero. The predetermined torque corresponds to a potential vibration amount when the slip amount is zero. The transmission control module selectively increases the slip amount above zero in response to the setting of the signal to the active state.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: January 7, 2014
    Inventors: Christopher E. Whitney, William L. Aldrich, III, Jeffrey M. Kaiser, Daniel J. Wickman, Scott A. Hearld