Patents by Inventor Tushar NACHNANI

Tushar NACHNANI 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).

  • Dual supply dual control architecture
    Patent number: 11837984
    Abstract: A system for an inverter includes a first integrated circuit configured to: provide power to a first set of switches, and selectively control the first set of switches and a second set of switches; a second integrated circuit configured to provide power to the second set of switches; and an electric motor being connected to the first set of switches and the second set of switches, wherein, the second integrated circuit is further configured to: in response to an a fault detected in the first integrated circuit, selectively control the first set of switches and the second set of switches, and, in response to at least one voltage value corresponding to a voltage of the first set of switches being outside of a threshold, performing a safe state operation.
    Type: Grant
    Filed: May 14, 2021
    Date of Patent: December 5, 2023
    Assignee: Delphi Technologies IP Limited
    Inventors: Mark W. Gose, Mitchell Cohen, Tushar Nachnani, Christopher Klaus
  • Systems and methods for phase-voltage based motor period measurement and controlled signal path fault detection
    Patent number: 11557992
    Abstract: A method for phase-voltage based motor period measurement includes generating a commanded phase voltage and applying the commanded phase voltage to a first phase voltage input of an electric motor, a second phase voltage input of the electric motor, and a third phase voltage input of the electric motor, measuring a first period of a phase voltage associated with the first phase voltage input and the second phase voltage input and comparing the measured first period to a frequency of the commanded phase voltage, and, in response to a determination that the measured first period of the phase voltage associated with the first phase voltage input and the second phase voltage input is outside of a range of the frequency associated with the commanded phase voltage, identifying a fault associated with the first integrated circuit or signal path.
    Type: Grant
    Filed: May 14, 2021
    Date of Patent: January 17, 2023
    Assignee: DELPHI TECHNOLOGIES IP LIMITED
    Inventors: Raquib Buksh, Kevin M. Gertiser, Ihab Nahlus, Tushar Nachnani, Ronald M. Shearer, Mitchell Cohen, Spandana V. Barre
  • SYSTEMS AND METHODS FOR PHASE-VOLTAGE BASED MOTOR PERIOD MEASUREMENT AND CONTROLLED SIGNAL PATH FAULT DETECTION
    Publication number: 20220368253
    Abstract: A method for phase-voltage based motor period measurement includes generating a commanded phase voltage and applying the commanded phase voltage to a first phase voltage input of an electric motor, a second phase voltage input of the electric motor, and a third phase voltage input of the electric motor, measuring a first period of a phase voltage associated with the first phase voltage input and the second phase voltage input and comparing the measured first period to a frequency of the commanded phase voltage, and, in response to a determination that the measured first period of the phase voltage associated with the first phase voltage input and the second phase voltage input is outside of a range of the frequency associated with the commanded phase voltage, identifying a fault associated with the first integrated circuit or signal path.
    Type: Application
    Filed: May 14, 2021
    Publication date: November 17, 2022
    Inventors: Raquib BUKSH, Kevin M. GERTISER, Ihab NAHLUS, Tushar NACHNANI, Ronald M. SHEARER, Mitchell COHEN, Spandana V. BARRE
  • DUAL SUPPLY DUAL CONTROL ARCHITECTURE
    Publication number: 20220368268
    Abstract: A system for an inverter includes a first integrated circuit configured to: provide power to a first set of switches, and selectively control the first set of switches and a second set of switches; a second integrated circuit configured to provide power to the second set of switches; and an electric motor being connected to the first set of switches and the second set of switches, wherein, the second integrated circuit is further configured to: in response to an a fault detected in the first integrated circuit, selectively control the first set of switches and the second set of switches, and, in response to at least one voltage value corresponding to a voltage of the first set of switches being outside of a threshold, performing a safe state operation.
    Type: Application
    Filed: May 14, 2021
    Publication date: November 17, 2022
    Inventors: Mark W. GOSE, Mitchell COHEN, Tushar NACHNANI, Christopher KLAUS