Patents by Inventor Mahendra Upadhyaya

Mahendra Upadhyaya 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).

  • Vehicle speed limiting via engine control commands issued by electronic transmission controller
    Patent number: 8260509
    Abstract: A machine includes a drive train with an electronically controlled transmission in communication with an electronic engine controller. The machine ground speed is limited by executing a vehicle speed limit algorithm in the electronic transmission controller. This algorithm generates an engine control message that is communicated to the electronic engine controller. The power output of the engine is reduced responsive to the engine control message. The machine responds by not exceeding a prescribed speed limit programmed into the electronic transmission controller. This vehicle speed limiting strategy is particularly applicable to machines without a vehicle speed limiting algorithm resident in the electronic engine controller.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: September 4, 2012
    Assignee: Caterpillar Inc.
    Inventors: John T. Reedy, Mahendra Upadhyaya, James W. Landes, Arvil D. Wilson
  • Vehicle speed limiting via engine control commands issued by electronic transmission controller
    Publication number: 20090111652
    Abstract: A machine includes a drive train with an electronically controlled transmission in communication with an electronic engine controller. The machine ground speed is limited by executing a vehicle speed limit algorithm in the electronic transmission controller. This algorithm generates an engine control message that is communicated to the electronic engine controller. The power output of the engine is reduced responsive to the engine control message. The machine responds by not exceeding a prescribed speed limit programmed into the electronic transmission controller. This vehicle speed limiting strategy is particularly applicable to machines without a vehicle speed limiting algorithm resident in the electronic engine controller.
    Type: Application
    Filed: December 12, 2007
    Publication date: April 30, 2009
    Inventors: John T. Reedy, Mahendra Upadhyaya, James W. Landes, Arvil D. Wilson