Patents by Inventor Srdjan M. Lukic

Srdjan M. Lukic 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).

  • Patent number: 8011461
    Abstract: This invention relates to a parallel hybrid electric conversion kit for a vehicle with an internal combustion engine, a driveshaft and a transmission, such as, rear wheel drive vehicles, four-wheel drive vehicles, heavy duty multiple-driven-axle vehicles and/or all-wheel drive vehicles. The conversion kit includes a motor-generator, a torque coupler, a battery, a power electronics module and a controller. Suitable torque couplers include transfer cases and/or rear-through differentials. The conversion kit provides an aftermarket solution to increased performance, fuel economy and/or reduced emissions by modifying the drivetrain after the transmission. According to one embodiment of this invention, the control scheme of the installed conversion kit receives input signals from the engine and the motor-generator, but only sends control signals to the motor-generator, facilitating installation of the conversion kit.
    Type: Grant
    Filed: February 14, 2008
    Date of Patent: September 6, 2011
    Assignee: Illinois Institute of Technology
    Inventors: Fernando Rodriguez, Srdjan M. Lukic, Sanjaka G. Wirasingha, Ali Emadi
  • Patent number: 7960931
    Abstract: A digital controller for controlling variable speed and dynamic torque applications of an electric motor. The controller includes a state observer monitoring a torque load requirement and sending a signal based on the torque load requirement, and a digital control unit for receiving the signal from the state observer and sending an output to the electric motor. The output is a value that corresponds to a first motor operating state or a second motor operating state.
    Type: Grant
    Filed: June 16, 2008
    Date of Patent: June 14, 2011
    Assignee: Illinois Institute of Technology
    Inventors: Fernando Rodriguez, Srdjan M. Lukic, Ali Emadi
  • Patent number: 7954579
    Abstract: This invention relates a control strategy for a hybrid electric vehicle having an electric motor, a battery and an internal combustion engine. The control strategy improves fuel economy and reduces emissions while providing sufficient acceleration over a varying set of driving conditions through an adaptive control unit with an artificial neural network. The artificial neural network is trained on a pre-processed training set based on the highest fuel economies of multiple control strategies and multiple driving profiles. Training the artificial neural network includes a training algorithm and a learning algorithm. The invention also includes a method of operating a hybrid electric vehicle with an adaptive control strategy using an artificial neural network.
    Type: Grant
    Filed: February 4, 2008
    Date of Patent: June 7, 2011
    Assignee: Illinois Institute of Technology
    Inventors: Fernando Rodriguez, Srdjan M. Lukic, Ali Emadi
  • Publication number: 20090223725
    Abstract: This invention relates to a parallel hybrid electric conversion kit for a vehicle with an internal combustion engine, a driveshaft and a transmission, such as, rear wheel drive vehicles, four-wheel drive vehicles, heavy duty multiple-driven-axle vehicles and/or all-wheel drive vehicles. The conversion kit includes a motor-generator, a torque coupler, a battery, a power electronics module and a controller. Suitable torque couplers include transfer cases and/or rear-through differentials. The conversion kit provides an aftermarket solution to increased performance, fuel economy and/or reduced emissions by modifying the drivetrain after the transmission. According to one embodiment of this invention, the control scheme of the installed conversion kit receives input signals from the engine and the motor-generator, but only sends control signals to the motor-generator, facilitating installation of the conversion kit.
    Type: Application
    Filed: February 14, 2008
    Publication date: September 10, 2009
    Inventors: Fernando Rodriguez, Srdjan M. Lukic, Sanjaka G. Wirasingha, Ali Emadi
  • Publication number: 20090198396
    Abstract: This invention relates a control strategy for a hybrid electric vehicle having an electric motor, a battery and an internal combustion engine. The control strategy improves fuel economy and reduces emissions while providing sufficient acceleration over a varying set of driving conditions through an adaptive control unit with an artificial neural network. The artificial neural network is trained on a pre-processed training set based on the highest fuel economies of multiple control strategies and multiple driving profiles. Training the artificial neural network includes a training algorithm and a learning algorithm. The invention also includes a method of operating a hybrid electric vehicle with an adaptive control strategy using an artificial neural network.
    Type: Application
    Filed: February 4, 2008
    Publication date: August 6, 2009
    Inventors: Fernando RODRIGUEZ, Srdjan M. LUKIC, Ali EMADI
  • Publication number: 20090009113
    Abstract: A digital controller for controlling variable speed and dynamic torque applications of an electric motor. The controller includes a state observer monitoring a torque load requirement and sending a signal based on the torque load requirement, and a digital control unit for receiving the signal from the state observer and sending an output to the electric motor. The output is a value that corresponds to a first motor operating state or a second motor operating state.
    Type: Application
    Filed: June 16, 2008
    Publication date: January 8, 2009
    Inventors: Fernando Rodriguez, Srdjan M. Lukic, Ali Emadi