Patents by Inventor Mariappan PARAMASIVAN

Mariappan PARAMASIVAN 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).

  • Directional shift control in vehicles
    Patent number: 11572069
    Abstract: The present disclosure relates to a method of controlling gear selection in a transmission of a vehicle in response to a directional shift requested by an operator and to a control system for controlling gear selection to manage directional shifts in vehicles, from a first direct to a second direction (e.g. forward to reverse). The method compares the current transmission output speed with a predetermined direction shift threshold transmission output speed. If the current transmission output speed is less than or equal to the predetermined direction shift threshold transmission output speed, the transmission is caused to execute a direction shift from the initial first direction gear to the same second direction gear, or a next highest second direction gear if there is no second direction gear which corresponds to the initial first direction gear.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: February 7, 2023
    Assignee: Caterpillar Inc.
    Inventors: Robert Nicholas Harper, Abhishek Awana, Christopher L. Wynkoop, Mariappan Paramasivan
  • DIRECTIONAL SHIFT CONTROL IN VEHICLES
    Publication number: 20210316731
    Abstract: The present disclosure relates to a method of controlling gear selection in a transmission of a vehicle in response to a directional shift requested by an operator and to a control system for controlling gear selection to manage directional shifts in vehicles, from a first direct to a second direction (e.g. forward to reverse). The method compares the current transmission output speed with a predetermined direction shift threshold transmission output speed. If the current transmission output speed is less than or equal to the predetermined direction shift threshold transmission output speed, the transmission is caused to execute a direction shift from the initial first direction gear to the same second direction gear, or a next highest second direction gear if there is no second direction gear which corresponds to the initial first direction gear.
    Type: Application
    Filed: August 15, 2019
    Publication date: October 14, 2021
    Applicant: Caterpillar Inc.
    Inventors: Robert Nicholas HARPER, Abhishek AWANA, Christopher L. WYNKOOP, Mariappan PARAMASIVAN