Patents by Inventor Karthik Ramanan Vaidyanathan

Karthik Ramanan Vaidyanathan 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: 11891047
    Abstract: A method for having a vehicle follow a desired curvature path is provided. The vehicle has at least one differential with a differential lock connected to at least one driven wheel axle of the vehicle. The method includes providing information regarding state of the differential lock, the state being either that the differential lock is activated or unlocked, and when the differential lock is activated, calculating a yaw moment of the vehicle caused by the differential lock; and compensating for a deviation from the desired curvature path caused by the yaw moment such that a resulting steering angle is equal to or less than a maximum allowed steering angle of the vehicle. The compensation is a feed forward compensation.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: February 6, 2024
    Assignee: VOLVO TRUCK CORPORATION
    Inventors: Leo Laine, Karthik Ramanan Vaidyanathan
  • Patent number: 11691609
    Abstract: A control arrangement for a vehicle motion system including a braking function, comprising motion actuators with one or more brake actuators pertaining to the braking function, a first vehicle motion management controller (VMM1) and a second vehicle motion management controller (VMM2), forming a redundant assembly to control the braking function, wherein, in riding conditions, the first vehicle motion management controller controls the brake actuators with a current nominal expected braking performance, while the second vehicle motion management controller (VMM2) is in a waiting-to-operate mode, the control arrangement comprising a hot swap functionality in which the second vehicle motion management controller (VMM2) is configured to take over control of the brake actuators from the first vehicle motion management controller, with the current nominal expected braking performance, in a short time period (SWT) less than one second, preferably less than 0.5 second, preferably less than 0.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: July 4, 2023
    Assignee: Volvo Truck Corporation
    Inventors: Leo Laine, Lionel Farres, Christian Oscarsson, Leon Henderson, Johanna Majqvist, Jose Vilca, Kristoffer Tagesson, Karthik Ramanan Vaidyanathan, Nicolas Soulier
  • Publication number: 20210387613
    Abstract: The present invention relates to a method for having a vehicle (100) follow a desired curvature path (C1), said vehicle (100) comprising at least one differential (10, 20, 30) with a differential lock connected to at least one driven wheel axle (40, 50) of said vehicle (100), said method comprising at least the following steps: —providing (S1) information regarding state of said differential lock, said state being either that said differential lock is activated or unlocked, and when said differential lock is activated: —calculating (S2) a yaw moment, Mdiff, of said vehicle (100), caused by said differential lock; and —compensating (S3) for a deviation from said desired curvature path (C1) caused by said yaw moment, Mdiff, such that a resulting steering angle is equal to or less than a maximum allowed steering angle of said vehicle (100), whereby said compensation is a feed forward compensation. The invention also relates to a control unit, a vehicle, a computer program and a computer readable medium.
    Type: Application
    Filed: October 22, 2018
    Publication date: December 16, 2021
    Applicant: VOLVO TRUCK CORPORATION
    Inventors: Leo LAINE, Karthik Ramanan VAIDYANATHAN
  • Publication number: 20210078556
    Abstract: A control arrangement for a vehicle motion system including a braking function, comprising motion actuators with one or more brake actuators pertaining to the braking function, a first vehicle motion management controller (VMM1) and a second vehicle motion management controller (VMM2), forming a redundant assembly to control the braking function, wherein, in riding conditions, the first vehicle motion management controller controls the brake actuators with a current nominal expected braking performance, while the second vehicle motion management controller (VMM2) is in a waiting-to-operate mode, the control arrangement comprising a hot swap functionality in which the second vehicle motion management controller (VMM2) is configured to take over control of the brake actuators from the first vehicle motion management controller, with the current nominal expected braking performance, in a short time period (SWT) less than one second, preferably less than 0.5 second, preferably less than 0.
    Type: Application
    Filed: May 3, 2018
    Publication date: March 18, 2021
    Inventors: Leo Laine, Lionel Farres, Christian Oscarsson, Leon Henderson, Johanna Majqvist, Jose Vilca, Kristoffer Tagesson, Karthik Ramanan Vaidyanathan, Nicolas Soulier