Patents by Inventor Jason P. Hafer

Jason P. Hafer 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).

  • Electrical vehicle range prediction
    Patent number: 8433455
    Abstract: A method for predicting the remaining travel distance of an electric vehicle. The method includes determining a useable battery energy value based on battery state-of-charge and battery capacity and a power value needed to heat or cool a vehicle cabin. The method determines an available battery energy value based on the useable battery energy value and an estimated energy value to provide the vehicle cabin heating or cooling, where the estimated energy value is determined using the power value. The method determines a recent energy used value based on an actual recent HVAC energy used value, a recent energy used value with no HVAC system loads and a recent energy used value with maximum HVAC system loads. The method determines a recent distance traveled value and determines the range by dividing the recent distance traveled value by the recent energy used value and multiplying by the available battery energy value.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: April 30, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Teddy Siy, Matthew A. Herrmann, Todd P. Lindemann, Jason P. Hafer
  • Driveline protection systems and methods using measured steering angle
    Patent number: 8428836
    Abstract: An engine control system comprises a limit determination module and a torque control module. The limit determination module selectively varies a torque limit based on a steering angle. The torque control module selectively limits torque output by an engine to the torque limit.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: April 23, 2013
    Inventors: Steven J. Andrasko, Brent T. Deep, Scott M. Neher, Jason P Hafer
  • ELECTRICAL VEHICLE RANGE PREDICTION
    Publication number: 20120109408
    Abstract: A method for predicting the remaining travel distance of an electric vehicle. The method includes determining a useable battery energy value based on battery state-of-charge and battery capacity and a power value needed to heat or cool a vehicle cabin. The method determines an available battery energy value based on the useable battery energy value and an estimated energy value to provide the vehicle cabin heating or cooling, where the estimated energy value is determined using the power value. The method determines a recent energy used value based on an actual recent HVAC energy used value, a recent energy used value with no HVAC system loads and a recent energy used value with maximum HVAC system loads. The method determines a recent distance traveled value and determines the range by dividing the recent distance traveled value by the recent energy used value and multiplying by the available battery energy value.
    Type: Application
    Filed: August 8, 2011
    Publication date: May 3, 2012
    Applicant: GM GLOBAL TECHOLOGY OPERATIONS LLC
    Inventors: Teddy Siy, Matthew A. Herrmann, Todd P. Lindemann, Jason P. Hafer
  • DRIVELINE PROTECTION SYSTEMS AND METHODS USING MEASURED STEERING ANGLE
    Publication number: 20110066338
    Abstract: An engine control system comprises a limit determination module and a torque control module. The limit determination module selectively varies a torque limit based on a steering angle. The torque control module selectively limits torque output by an engine to the torque limit.
    Type: Application
    Filed: September 16, 2009
    Publication date: March 17, 2011
    Applicant: GM Global Technology Operations, Inc.
    Inventors: Steven J. Andrasko, Brent T. Deep, Scott M. Neher, Jason P. Hafer