Patents by Inventor Raman UMASHANKAR

Raman UMASHANKAR 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: 11280307
    Abstract: An engine drive system comprises a processor and a control module coupled to the processor. The control module receives a signal from a crank sensor system, the signal being indicative of at least one of a speed and load of a crankshaft. Based on the signal received from the crank sensor system, the control module determines whether a load on the crankshaft is greater than a threshold value. Based on the determination, the control module controls an electrical machine coupled to the crankshaft to rotate the electrical machine in one of a forward direction and a reverse direction.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: March 22, 2022
    Assignee: INDIA NIPPON ELECTRICALS LIMITED
    Inventors: Raman Umashankar, Bose Senthilvalavan
  • Publication number: 20210293214
    Abstract: An engine drive system comprises a processor and a control module coupled to the processor. The control module receives a signal from a crank sensor system, the signal being indicative of at least one of a speed and load of a crankshaft. Based on the signal received from the crank sensor system, the control module determines whether a load on the crankshaft is greater than a threshold value. Based on the determination, the control module controls an electrical machine coupled to the crankshaft to rotate the electrical machine in one of a forward direction and a reverse direction.
    Type: Application
    Filed: November 13, 2018
    Publication date: September 23, 2021
    Inventors: Raman UMASHANKAR, Bose SENTHILVALAVAN
  • Publication number: 20210143666
    Abstract: An Integrated Starter-Generator (ISG) comprises a series regulator. The series regulator includes a controllable switch to be connected to a terminal of an electrical machine to receive an AC voltage from the electrical machine and to be connected to a battery to supply charging current to the battery in response to actuation of the controllable switch. The series regulator further includes a controller connected to the controllable switch to provide an actuating signal to actuate the controllable switch. The controller is configured to monitor a voltage level of the battery and determine whether to provide the actuating signal to the controllable switch based on the voltage level of the battery.
    Type: Application
    Filed: November 20, 2018
    Publication date: May 13, 2021
    Inventors: Raman UMASHANKAR, Bose SENTHILVALAVAN
  • Patent number: 10938281
    Abstract: A terminal connection of a rotary electromagnetic device and a method of connecting a terminal to an aluminum stator wire of the rotary electromagnetic device without changing stator configuration is described. A de-insulated portion at one of ends of the stator wire is connected to a small connection wire made of copper by ultrasonic welding to form a mutually welded stator wire and connection wire portion. The mutually welded stator wire and connection wire portion are soldered to the terminal to, therefore, form an electric connection between the stator wire and the terminal.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: March 2, 2021
    Assignee: INDIA NIPPON ELECTRICALS LIMITED
    Inventors: Raman Umashankar, Sivasubramanian Ravi Kumar, Murugan Sundar
  • Publication number: 20190131854
    Abstract: A terminal connection of a rotary electromagnetic device and a method of connecting a terminal to an aluminum stator wire of the rotary electromagnetic device without changing stator configuration is described. A de-insulated portion at one of ends of the stator wire is connected to a small connection wire made of copper by ultrasonic welding to form a mutually welded stator wire and connection wire portion. The mutually welded stator wire and connection wire portion are soldered to the terminal to, therefore, form an electric connection between the stator wire and the terminal.
    Type: Application
    Filed: April 19, 2017
    Publication date: May 2, 2019
    Inventors: Raman UMASHANKAR, Sivasubramanian RAVI KUMAR, Murugan SUNDAR