Patents by Inventor Chinmaya Mittal

Chinmaya Mittal 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).

  • Disturbance mitigation techniques for hybrid power-split transmissions
    Patent number: 11014550
    Abstract: A system and method for controlling a hybrid power-split transmission of a vehicle involve obtaining measured rotational speeds of an engine and an electric motor of the transmission, wherein the transmission comprises at least two input shafts having a gear set therebetween and an output shaft, wherein one input shaft is coupled to the engine and another input shaft is connected to the electric motor, determining a main torque profile for the electric motor based on a set of operating conditions of the vehicle, calculating a speed difference between the measured rotational speeds of the engine and the electric motor, determining a disturbance torque profile for the electric motor based on the calculated speed difference, and performing closed-loop control of the electric motor based on a combination of the main and disturbance torque profiles to mitigate a disturbance at the output shaft of the transmission.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: May 25, 2021
    Assignee: FCA US LLC
    Inventors: Konstantinos Siokos, Sandeep Makam, Yang Liang, Lurun Zhong, Chinmaya Mittal
  • DISTURBANCE MITIGATION TECHNIQUES FOR HYBRID POWER-SPLIT TRANSMISSIONS
    Publication number: 20200254993
    Abstract: A system and method for controlling a hybrid power-split transmission of a vehicle involve obtaining measured rotational speeds of an engine and an electric motor of the transmission, wherein the transmission comprises at least two input shafts having a gear set therebetween and an output shaft, wherein one input shaft is coupled to the engine and another input shaft is connected to the electric motor, determining a main torque profile for the electric motor based on a set of operating conditions of the vehicle, calculating a speed difference between the measured rotational speeds of the engine and the electric motor, determining a disturbance torque profile for the electric motor based on the calculated speed difference, and performing closed-loop control of the electric motor based on a combination of the main and disturbance torque profiles to mitigate a disturbance at the output shaft of the transmission.
    Type: Application
    Filed: February 7, 2019
    Publication date: August 13, 2020
    Inventors: Konstantinos Siokos, Sandeep Makam, Yang Liang, Lurun Zhong, Chinmaya Mittal