Patents Assigned to Chrysler LLC
  • METHOD AND APPARATUS TO CONTROL ENGINE TORQUE TO PEAK MAIN PRESSURE FOR A HYBRID POWERTRAIN SYSTEM
    Publication number: 20090118083
    Abstract: A method to control a powertrain including a transmission, an engine, and an electric machine includes monitoring a rotational speed of the engine, monitoring a temperature of a transmission fluid, determining a maximum hydraulic pressure within a hydraulic control system based upon the rotational speed of the engine and the temperature of the transmission fluid, determining a predicted clutch torque capacity based upon the maximum hydraulic pressure, generating a preferred input torque from the engine based upon the predicted clutch torque capacity, and utilizing the preferred input torque to control the engine.
    Type: Application
    Filed: October 13, 2008
    Publication date: May 7, 2009
    Applicants: GM GLOBAL TECHNOLOGY OPERATIONS, INC., Daimler AG, Chrysler LLC, Bayerishe Motoren Werke Aktiengesellschaft
    Inventors: Lawrence A. Kaminsky, Anthony H. Heap, Jy-Jen F. Sah
  • METHOD FOR CONTROLLING AN ENGINE OF A HYBRID POWERTRAIN IN A FUEL ENRICHMENT MODE
    Publication number: 20090118939
    Abstract: An engine is coupled to an input member of a hybrid transmission. The hybrid transmission is operative to transfer torque between the input member and a torque machine and an output member to generate an output torque in response to an operator torque request. The torque machine is connected to an energy storage device.
    Type: Application
    Filed: October 20, 2008
    Publication date: May 7, 2009
    Applicants: GM GLOBAL TECHNOLOGY OPERATIONS, INC., Daimler AG, Chrysler LLC, Bayerishe Motoren Werke Aktiengesellschaft
    Inventors: Anthony H. Heap, Wilfried Brunssen, Scott J. Thompson
  • SYSTEM ARCHITECTURE FOR A BLENDED BRAKING SYSTEM IN A HYBRID POWERTRAIN SYSTEM
    Publication number: 20090118885
    Abstract: An engine and a second power generating device transmit power through a transmission to a driveline to a wheel. A control module determines a regenerative braking axle torque capacity and a regenerative braking torque. Power output from the second power generating device is controlled based upon a regenerative braking axle torque request. A brake control module determines a total braking torque request and generates the regenerative braking axle torque request based upon the total braking torque request, the regenerative braking axle torque capacity, and the regenerative braking torque. The brake control module controls a friction brake.
    Type: Application
    Filed: October 24, 2008
    Publication date: May 7, 2009
    Applicants: GM GLOBAL TECHNOLOGY OPERATIONS, INC., Daimler AG, Chrysler LLC, Bayerishe Motoren Werke Aktiengesellschaft
    Inventors: Anthony H. Heap, William R. Cawthorne, Seamus T. Mcgrath, Timothy M. Karnjate, William K. Manosh
  • METHOD OF CHARGING A POWERTRAIN
    Publication number: 20090115373
    Abstract: A method of charging a powertrain includes detecting an external power source in electrical communication with the powertrain, establishing a virtual network between charging control module, and transferring charge from the external power source to the powertrain.
    Type: Application
    Filed: October 16, 2008
    Publication date: May 7, 2009
    Applicants: GM GLOBAL TECHNOLOGY OPERATIONS, INC., Daimler AG, Chrysler LLC, Bayerishe Motoren Werke Aktiengesellschaft
    Inventors: Nicholas Kokotovich, Aniket Kothari, Michael Bolton
  • METHOD OF OPERATING A VEHICLE UTILIZING REGENERATIVE BRAKING
    Publication number: 20090118886
    Abstract: A vehicle includes a powertrain system and a friction braking system, the powertrain system including a hybrid transmission operative in one of a fixed gear operating range state and a continuously variable operating range state to transmit torque between an input member and a torque machine and an output member coupled to a driveline.
    Type: Application
    Filed: October 24, 2008
    Publication date: May 7, 2009
    Applicants: GM GLOBAL TECHNOLOGY OPERATIONS, INC., Daimler AG, Chrysler LLC, Bayerishe Motoren Werke Aktiengesellschaft
    Inventors: Goro Tamai, Thomas S. Miller, Scott J. Thompson, Lawrence A. Kaminsky, Jy-Jen F. Sah, Anthony H. Heap
  • METHOD FOR PREFERENTIAL SELECTION OF MODE AND GEAR AND INPUT SPEED BASED ON MULTIPLE ENGINE STATE FUELING COSTS FOR A HYBRID POWERTRAIN SYSTEM
    Publication number: 20090118076
    Abstract: A method for controlling a hybrid powertrain system including an engine selectively operative in one of an all-cylinder state and a cylinder deactivation state based upon power costs includes determining engine power costs for each operating range state of the transmission, determining a system power cost, selecting a preferred cost and corresponding engine operating points, selecting a preferred operating range state, selecting the engine state, and controlling the engine based upon the selected operating range state, the selected engine state, and the engine operating points.
    Type: Application
    Filed: September 24, 2008
    Publication date: May 7, 2009
    Applicants: GM GLOBAL TECHNOLOGY OPERATIONS, INC., Daimler AG, Chrysler LLC, Bayerishe Motoren Werke Aktiengesellschaft
    Inventors: Anthony H. Heap, Kee Yong Kim
  • METHOD AND APPARATUS TO PRIORITIZE TRANSMISSION OUTPUT TORQUE AND INPUT ACCELERATION FOR A HYBRID POWERTRAIN SYSTEM
    Publication number: 20090118915
    Abstract: A powertrain includes an electro-mechanical transmission mechanically-operatively coupled to an internal combustion engine and an electric machine adapted to selectively transmit mechanical power to an output member. A method for controlling the powertrain includes operating the transmission in an operating range state wherein input speed can operate independent of output speed and wherein a reactive torque is transmitted through the transmission. The method further includes monitoring commands affecting a requested output torque, monitoring a calculated output torque, and prioritizing between an input acceleration of the transmission and an output torque of the transmission based upon whether operating the transmission in the operating range state is in transient operation or stable operation.
    Type: Application
    Filed: October 21, 2008
    Publication date: May 7, 2009
    Applicants: GM GLOBAL TECHNOLOGY OPERATIONS, INC., Daimier AG, Chrysler LLC, Bayerishe Motoren Werke Aktiengesellschaft
    Inventors: Anthony H. Heap, Lawrence A. Kaminsky, Jy-Jen F. Sah
  • SYSTEM CONSTRAINTS METHOD OFCONTROLLING OPERATION OF AN ELECTRO-MECHANICAL TRANSMISSION WITH AN ADDITIONAL CONSTRAINT RANGE
    Publication number: 20090118087
    Abstract: A method for controlling an electromechanical transmission mechanically coupled to first and second electric machines to transmit power to an output member includes determining motor torque constraints and battery power constraints. A preferred output torque to an output member is determined that is achievable within the motor torque constraints, within a range for an additional torque input and based upon the battery power constraints.
    Type: Application
    Filed: September 26, 2008
    Publication date: May 7, 2009
    Applicants: GM GLOBAL TECHNOLOGY OPERATIONS, INC., Daimler AG, Chrysler LLC, Bayerishe Motoren Werke Aktiengesellschaft
    Inventors: Tung-Ming Hsieh, Anthony H. Heap
  • METHOD FOR CONTROLLING INPUT TORQUE PROVIDED TO A TRANSMISSION
    Publication number: 20090118926
    Abstract: A method for controlling an input torque provided to a transmission includes executing a first iterative search within a first range of permissible torque values to determine a first torque value based on a first cost value. The first cost value is based on a first set of powertrain measurements measured at a first time. A second cost value based on a second torque value and the first set of powertrain measurements measured at the first time is calculated. The second torque value is determined using a second set of powertrain measurements measured at a second time prior to the first time. One of the first torque value and the second torque value is then selected based on the first cost value and the second cost value.
    Type: Application
    Filed: September 29, 2008
    Publication date: May 7, 2009
    Applicants: GM GLOBAL TECHNOLOGY OPERATIONS, INC., Daimler AG, Chrysler LLC, Bayerishe Motoren Werke Aktiengesellschaft
    Inventors: Anthony H. Heap, Wilfried Brunssen, Bin Wu, Brian R. Medema
  • PREDICTED AND IMMEDIATE OUTPUT TORQUE CONTROL ARCHITECTURE FOR A HYBRID POWERTRAIN SYSTEM
    Publication number: 20090118929
    Abstract: A method for controlling torque in a hybrid powertrain system to selectively transfer mechanical power to an output member includes monitoring operator inputs to an accelerator pedal and to a brake pedal. An immediate accelerator output torque request, a predicted accelerator output torque request, an immediate brake output torque request, a predicted brake output torque request, and an axle torque response type are determined. An output torque command to the output member of the transmission is determined based upon the immediate accelerator output torque request and the immediate brake output torque request.
    Type: Application
    Filed: October 10, 2008
    Publication date: May 7, 2009
    Applicants: GM GLOBAL TECHNOLOGY OPERATIONS, INC, Daimler AG, Chrysler LLC, Bayerishe Motoren Werke Aktiengesellschaft
    Inventors: Anthony H. Heap, William R. Cawthorne
  • METHOD FOR SELECTION OF OPTIMAL MODE AND GEAR AND INPUT SPEED FOR PRESELECT OR TAP UP/DOWN OPERATION
    Publication number: 20090118947
    Abstract: A powertrain system includes an engine mechanically coupled to an electro-mechanical transmission at an input thereto selectively operative in one of a plurality of transmission operating range states and one of a plurality of engine states. A method for controlling the powertrain system includes combining sets of preferability factors inputted from engine sensors in a microprocessor or computer with other preferability factors generated during engine and vehicle operation to provide an output for a transmission control module, which may execute an operating range or engine state change.
    Type: Application
    Filed: September 23, 2008
    Publication date: May 7, 2009
    Applicants: GM GLOBAL TECHNOLOGY OPERATIONS, INC., Daimler AG, Chrysler LLC, Bayerishe Motoren Werke Aktiengesellschaft
    Inventors: Anthony H. Heap, Kee Yong Kim
  • METHOD AND APPARATUS TO CONTROL TEMPERATURE OF AN EXHAUST AFTERTREATMENT SYSTEM FOR A HYBRID POWERTRAIN
    Publication number: 20090118091
    Abstract: An internal combustion engine is fluidly connected to an exhaust aftertreatment system and operatively connected to an electro-mechanical transmission to transmit tractive power to a driveline. The engine is controlled during an engine operating cycle by determining a temperature of the exhaust aftertreatment system and adjusting power output of the engine based upon the temperature of the exhaust aftertreatment system and a preferred temperature range of the exhaust aftertreatment system. The electro-mechanical transmission is controlled to transmit tractive power to the driveline to meet an operator torque request based upon the adjusted power output of the engine.
    Type: Application
    Filed: September 19, 2008
    Publication date: May 7, 2009
    Applicants: GM GLOBAL TECHNOLOGY OPERATIONS, INC., Daimler AG, Chrysler LLC, Bayerishe Motoren Werke Aktiengesellschaft
    Inventors: John L. Lahti, Anthony H. Heap
  • PREDICTION STRATEGY FOR THERMAL MANAGEMENT AND PROTECTION OF POWER ELECTRONIC HARDWARE
    Publication number: 20090115491
    Abstract: A hybrid powertrain system includes an engine, an electric machine, a power electronics device including a plurality of electric circuit layers, and a cooling system. A method for managing thermal energy in the power electronics device includes monitoring a plurality of temperature sensors in the power electronics device, monitoring electric power into and out of the power electronics device, predicting temperatures for the plurality of electric circuit layers, and controlling the hybrid powertrain system based upon the predicted temperatures for the plurality of electric circuit layers.
    Type: Application
    Filed: October 22, 2008
    Publication date: May 7, 2009
    Applicants: GM GLOBAL TECHNOLOGY OPERATIONS, INC., Daimler AG, Chrysler LLC, Byerishe Motoren Werke Aktiengesellschaft
    Inventors: Mohammad N. Anwar, Prakash Haribhai Desai, Sean E. Gleason, Brian A. Welchko
  • METHOD FOR PREDICTING AN OPERATOR TORQUE REQUEST OF A HYBRID POWERTRAIN SYSTEM
    Publication number: 20090118879
    Abstract: A method for controlling a hybrid powertrain system based upon a predicted speed of an output member, a predicted operator torque request, and a predicted accelerator pedal position is disclosed. The method comprises predicting the accelerator pedal position based upon a monitored accelerator pedal position and a filtered accelerator pedal position, predicting the speed of an output member based upon a monitored speed of the output member, and predicting the operator torque request based upon the predicted speed of the output member and the predicted accelerator position.
    Type: Application
    Filed: September 24, 2008
    Publication date: May 7, 2009
    Applicants: GM GLOBAL TECHNOLOGY OPERATIONS, INC., Daimler AG, Chrysler LLC, Bayerishe Motoren Werke Akeiengesellschaft
    Inventors: Anthony H. Heap, Kee Yong Kim
  • METHOD FOR MONITORING AN AUXILIARY PUMP FOR A HYBRID POWERTRAIN
    Publication number: 20090118954
    Abstract: A powertrain system includes a hybrid transmission coupled to an engine and an auxiliary hydraulic pump. The auxiliary hydraulic pump is commanded to operate at a predetermined speed only when enable criteria are met. An engine-off state is inhibited based upon a difference between a commanded speed and a monitored operating speed of the auxiliary hydraulic pump.
    Type: Application
    Filed: October 10, 2008
    Publication date: May 7, 2009
    Applicants: GM GLOBAL TECHNOLOGY OPERATIONS, INC., Daimler AG, Chrysler LLC, Bayerishe Motoren Werke Aktiengesellschaft
    Inventors: PETER E. WU, ALI K. NAQVI, REBECCA TRIERWEILER, SYED NAQI, RYAN D. MARTINI
  • METHOD FOR DETERMINING INERTIA EFFECTS FOR A HYBRID POWERTRAIN SYSTEM
    Publication number: 20090118919
    Abstract: A method for controlling a hybrid powertrain system based upon determined inertial effects for a continuously variable operating range state includes monitoring an operator torque request and a rotational speed of the output member, determining an inertial effect on an input speed of the input member for a continuously variable operating range state, and controlling motor torque outputs from the electric machines to meet the operator torque request based upon the inertial effect on the input speed of the input member.
    Type: Application
    Filed: September 20, 2008
    Publication date: May 7, 2009
    Applicants: GM GLOBAL TECHNOLOGY OPERATIONS, INC., Daimler AG, Chrysler LLC, Bayerishe Motoren Werke Aktiengesellschaft
    Inventors: Anthony H. Heap, Kee Yong Kim
  • METHOD AND APPARATUS TO DETERMINE A PREFERRED OUTPUT TORQUE FOR OPERATING A HYBRID TRANSMISSION IN A CONTINUOUSLY VARIABLE MODE
    Publication number: 20090118950
    Abstract: A hybrid transmission includes a torque machine and an energy storage device connected thereto. The hybrid transmission is operative to transfer power between an input member and an output member and the torque machine in a continuously variable operating range state.
    Type: Application
    Filed: October 21, 2008
    Publication date: May 7, 2009
    Applicants: GM GLOBAL TECHNOLOGY OPERATIONS, INC., Daimler AG, Chrysler LLC, Bayerishe Motoren Werke Aktiengesellscheft
    Inventors: Anthony H. Heap, Tung-ming Hsieh
  • SYSTEM CONSTRAINTS METHOD OF DETERMINING MINIMUM AND MAXIMUM TORQUE LIMITS FOR AN ELECTRO-MECHANICAL POWERTRAIN SYSTEM
    Publication number: 20090118924
    Abstract: A powertrain including an electro-mechanical transmission mechanically-operatively coupled to an internal combustion engine and first and second electric machines to transmit power to an output member is disclosed. A method for controlling the electro-mechanical transmission includes determining minimum and maximum motor torque constraints for the first and second electric machines, and determining available battery power in terms of battery power constraints. One of a first, a second and a third case is determined based upon the motor torque constraints and the battery power constraints. A preferred output torque is determined for transmitting to the output member of the electro-mechanical transmission.
    Type: Application
    Filed: September 26, 2008
    Publication date: May 7, 2009
    Applicants: GM GLOBAL TECHNOLOGY OPERATIONS, INC., Daimler AG, Chrysler LLC, Bayerishe Motoren Werke Aktiengesellschaft
    Inventors: Tung-Ming Hsieh, Anthony H. Heap
  • METHOD FOR PREFERENTIAL SELECTION OF MODES AND GEAR WITH INERTIA EFFECTS FOR A HYBRID POWERTRAIN SYSTEM
    Publication number: 20090118075
    Abstract: A method for controlling a hybrid powertrain system selectively operative in one of a plurality of operating range states including an engine includes monitoring an operator torque request and a rotational speed of the output member, determining inertial effects of the transmissions, determining motor torque outputs from the electrical machines and an engine based upon the inertial effects, and selecting a preferred operating range state and a preferred input speed from the engine to the transmission based upon the operator torque request and the inertial effects.
    Type: Application
    Filed: September 23, 2008
    Publication date: May 7, 2009
    Applicants: GM GLOBAL TECHNOLOGY OPERATIONS, INC., Daimler AG, Chrysler LLC, Bayerishe Motoren Werke Aktiengesellschaft
    Inventors: Anthony H. Heap, Kee Yong Kim
  • ENGINE CONTROL SYSTEM FOR TORQUE MANAGEMENT IN A HYBRID POWERTRAIN SYSTEM
    Publication number: 20090118932
    Abstract: An engine is coupled to an input member of a hybrid transmission, the hybrid transmission operative to transfer power between the engine and a second torque machine and an output member. A method for controlling the engine includes monitoring an operator torque request, commanding operation of the hybrid transmission in a continuously variable operating range state, determining engine commands comprising a first engine torque request and a second engine torque request based upon the operator torque request and the operation of the hybrid transmission, determining an engine torque constraint comprising a maximum engine torque based upon a capacity of the hybrid transmission to react the engine torque, and controlling engine operation based upon the first engine torque request only when the second engine torque request exceeds the engine torque constraint.
    Type: Application
    Filed: October 14, 2008
    Publication date: May 7, 2009
    Applicants: GM GLOBAL TECHNOLOGY OPERATIONS, INC., Daimler AG, Chrysler LLC, Bayerishe Motoren Werke Aktiengesellschaft
    Inventors: Anthony H. Heap, Jy-Jen F. Sah, Lawrence A. Kaminsky