Patents by Inventor Mahesh M Kumar

Mahesh M Kumar 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).

  • Engine start systems and technique for hybrid electric vehicles
    Patent number: 9260002
    Abstract: An engine starting system and technique for transitioning from an electric drive mode to a hybrid drive made in a hybrid electric vehicle is disclosed. In an electric drive mode the torque demand of the hybrid electric vehicle is met by an electromechanical device. The starting technique includes slipping a clutch between the engine and electromechanical device with the vehicle in the electric drive mode to rotate the engine, disengaging the clutch so that the engine is fueled to obtain a speed that approximates a speed of the electromechanical device, and engaging the clutch to couple the engine and the electromechanical device to the drive shaft to meet driver torque demand.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: February 16, 2016
    Assignee: Cummins Inc.
    Inventors: Pinak J. Tulpule, Mahesh M. Kumar
  • ENGINE START SYSTEMS AND TECHNIQUE FOR HYBRID ELECTRIC VEHICLES
    Publication number: 20140088805
    Abstract: An engine starting system and technique for transitioning from an electric drive mode to a hybrid drive made in a hybrid electric vehicle is disclosed. In an electric drive mode the torque demand of the hybrid electric vehicle is met by an electromechanical device. The starting technique includes slipping a clutch between the engine and electromechanical device with the vehicle in the electric drive mode to rotate the engine, disengaging the clutch so that the engine is fueled to obtain a speed that approximates a speed of the electromechanical device, and engaging the clutch to couple the engine and the electromechanical device to the drive shaft to meet driver torque demand.
    Type: Application
    Filed: September 25, 2012
    Publication date: March 27, 2014
    Inventors: Pinak J. Tulpule, Mahesh M. Kumar
  • High resolution access control
    Patent number: 6826694
    Abstract: A system and method for high resolution access control for packetized information. A packet is received at a firewall. A rule corresponding to header information in the packet prescribes referring the packet to an access control proxy. The access control proxy analyzes the contents of the packet, and identifies a rule based upon the contents. The rule is implemented at the firewall.
    Type: Grant
    Filed: October 22, 1999
    Date of Patent: November 30, 2004
    Assignee: AT&T Corp.
    Inventors: Partha P. Dutta, Mahesh M Kumar, Michah Lerner