Patents by Inventor Srikrishna Doraiswamy

Srikrishna Doraiswamy 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: 11845304
    Abstract: A system for powering an electronic device within a tire is provided, the system comprising: a generator; an electrically conductive wheel coated in a non-conductive coating, the wheel including rim lips, wherein one of the rim lips includes a conductive area; the tire including bead portions, sidewalls, shoulders, a tread oriented in a tread region, and an inner surface; a conductive element extending from a bead portion, and in contact with the inner surface; an electronic device within the vehicle tire; and a ground path extending through a thickness of the vehicle tire from the inner surface to an exterior surface in a contact patch of the tread; wherein the generator is electrically connected to the electrically conductive wheel; wherein the electronic device is electrically connected to the conductive element and the ground path; and wherein the conducive element contacts the conductive area.
    Type: Grant
    Filed: October 5, 2022
    Date of Patent: December 19, 2023
    Assignee: Bridgestone Americas Tire Operations, LLC
    Inventors: Terence E. Wei, Jason R. Barr, Thomas A. Sams, Srikrishna Doraiswamy, Timothy J. Hanchin
  • Publication number: 20230022580
    Abstract: A system for powering an electronic device within a tire is provided, the system comprising: a generator; an electrically conductive wheel coated in a non-conductive coating, the wheel including rim lips, wherein one of the rim lips includes a conductive area; the tire including bead portions, sidewalls, shoulders, a tread oriented in a tread region, and an inner surface; a conductive element extending from a bead portion, and in contact with the inner surface; an electronic device within the vehicle tire; and a ground path extending through a thickness of the vehicle tire from the inner surface to an exterior surface in a contact patch of the tread; wherein the generator is electrically connected to the electrically conductive wheel; wherein the electronic device is electrically connected to the conductive element and the ground path; and wherein the conducive element contacts the conductive area.
    Type: Application
    Filed: October 5, 2022
    Publication date: January 26, 2023
    Inventors: Terence E Wei, Jason R. Barr, Thomas A. Sams, Srikrishna Doraiswamy, Timothy J. Hanchin
  • Patent number: 11491830
    Abstract: A system for powering an electronic device within a tire is provided, the system comprising: a generator; an electrically conductive wheel coated in a non-conductive coating, the wheel including rim lips, wherein one of the rim lips includes a conductive area; the tire including bead portions, sidewalls, shoulders, a tread oriented in a tread region, and an inner surface; a conductive element extending from a bead portion, and in contact with the inner surface; an electronic device within the vehicle tire; and a ground path extending through a thickness of the vehicle tire from the inner surface to an exterior surface in a contact patch of the tread; wherein the generator is electrically connected to the electrically conductive wheel; wherein the electronic device is electrically connected to the conductive element and the ground path; and wherein the conducive element contacts the conductive area.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: November 8, 2022
    Assignee: Bridgestone Americas Tire Operations, LLC
    Inventors: Terence E. Wei, Jason R. Barr, Thomas A. Sams, Srikrishna Doraiswamy, Timothy J. Hanchin
  • Publication number: 20220194148
    Abstract: A system for powering an electronic device within a tire is provided, the system comprising: a generator electrically connected to an electrically conductive wheel, the tire being mounted upon the wheel; the tire including bead portions, sidewalls, shoulders, a tread oriented in a tread region, and an inner surface; at least one conductive element extending from a bead portion, and in contact with the inner surface along a sidewall, along a shoulder, and terminating in the tread region; at least one electronic device within the vehicle tire; and at least one ground path extending through a thickness of the vehicle tire from the inner surface to an exterior surface in a contact patch of the tread; and wherein the at least one electronic device is electrically connected to the at least one conductive element and the at least one ground path.
    Type: Application
    Filed: March 19, 2020
    Publication date: June 23, 2022
    Inventors: Terence E. Wei, Jason R. Barr, Thomas A. Sams, Timothy J. Hanchin, Srikrishna Doraiswamy
  • Patent number: 11331967
    Abstract: A system for powering an electronic device within a tire is provided, the system comprising: a generator electrically connected to an electrically conductive wheel, the tire being mounted upon the wheel; the tire including bead portions, sidewalls, shoulders, a tread oriented in a tread region, an inner surface, and a metallic cord oriented within an interior of the tire; at least one conductive element extending from a bead portion and piercing into the interior of the tire and electrically connecting to the metallic cord; at least one electronic device within the vehicle tire; and at least one ground path extending through a thickness of the vehicle tire from the inner surface to an exterior surface in a contact patch of the tread; and wherein the at least one electronic device is electrically connected to the metallic cord and the at least one ground path.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: May 17, 2022
    Assignee: Bridgestone Americas Tire Operations, LLC
    Inventors: Terence E. Wei, Jason R. Barr, Thomas A. Sams, Srikrishna Doraiswamy, Timothy J. Hanchin
  • Publication number: 20220144022
    Abstract: A system for powering an electronic device within a tire is provided, the system comprising: a generator; an electrically conductive wheel coated in a non-conductive coating, the wheel including rim lips, wherein one of the rim lips includes a conductive area; the tire including bead portions, sidewalls, shoulders, a tread oriented in a tread region, and an inner surface; a conductive element extending from a bead portion, and in contact with the inner surface; an electronic device within the vehicle tire; and a ground path extending through a thickness of the vehicle tire from the inner surface to an exterior surface in a contact patch of the tread; wherein the generator is electrically connected to the electrically conductive wheel; wherein the electronic device is electrically connected to the conductive element and the ground path; and wherein the conducive element contacts the conductive area.
    Type: Application
    Filed: March 19, 2020
    Publication date: May 12, 2022
    Inventors: Terence E. Wei, Jason R. Barr, Thomas A. Sams, Srikrishna Doraiswamy, Timothy J. Hanchin
  • Publication number: 20220088977
    Abstract: A system for powering an electronic device within a tire is provided, the system comprising: a generator electrically connected to an electrically conductive wheel, the tire being mounted upon the wheel; the tire including bead portions, sidewalls, shoulders, a tread oriented in a trend region, an inner surface, and a metallic cord oriented within an interior of the tire; at least one conductive element extending from a bead portion and piercing into the interior of the tire and electrically connecting to the metallic cord; at least one electronic device within the vehicle tire; and at least one ground path extending through a thickness of the vehicle tire from the inner surface to an exterior surface in a contact patch of the tread; and wherein the at least one electronic device is electrically connected to the metallic cord and the at least one ground path.
    Type: Application
    Filed: March 19, 2020
    Publication date: March 24, 2022
    Inventors: Terence E. Wei, Jason R. Barr, Thomas A. Sams, Srikrishna Doraiswamy, Timothy J. Hanchin
  • Publication number: 20220016938
    Abstract: A system and method are provided for Bayesian updating of distributions of factors that affect tire wear. Information is accumulated in data storage regarding probability distributions corresponding to each of a respective plurality of tire wear factors. Vehicle data comprising movement data and location data collected in association with a vehicle is transmitted from the vehicle to a centralized (e.g., cloud) computing device or network. At least one observation corresponding to one or more of the plurality of factors is generated based on the transmitted vehicle data. A Bayesian estimation is then generated of a tire wear status at a given time for at least one tire associated with the vehicle, based at least on the at least one generated observation and the stored information regarding probability distributions. The predictions accordingly carry a measure of uncertainty, and Bayesian inference can be used to update distributions based on the observations.
    Type: Application
    Filed: September 29, 2021
    Publication date: January 20, 2022
    Inventors: Srikrishna Doraiswamy, Terence E. Wei, Jason R. Barr, Hans R. Dorfi
  • Publication number: 20220017090
    Abstract: A system and method are provided for estimating and applying vehicle tire traction. Vehicle data (e.g., movement and location-based data) and tire sensor data are collected at a vehicle and transmitted to a remote computing system (e.g., cloud server). A wear status is determined, and traction characteristics determined for at least one tire, based at least on the vehicle data and the determined tire wear status. The predicted tire traction characteristics are transmitted from the remote computing system to an active safety unit associated with the vehicle, or a fleet management system, wherein the recipient is configured to modify vehicle operation settings based on at least the predicted tire traction characteristics. A maximum speed for the vehicle may be defined by the recipient, or a minimum following distance where, e.g., the vehicle is one of multiple vehicles in a defined platoon.
    Type: Application
    Filed: September 29, 2021
    Publication date: January 20, 2022
    Inventors: Thomas A. Sams, Jason R. Barr, Srikrishna Doraiswamy
  • Publication number: 20220016939
    Abstract: A system and method are provided for efficiently estimating vehicle tire wear. Vehicle kinetics (first) data are provided via one or more sensors associated with the vehicle and/or at least one associated tire. The vehicle kinetics data are locally processed to compress or otherwise generate second data as a reduced subset thereof, said second data representative of the first data and comprising any one or more predetermined wear-specific features extracted therefrom. The second data are selectively transmitted via a communications network to a remote computing system, which processes the second data to estimate a wear characteristic for the at least one tire. Alternatively, the second data processed to generate third data as a reconstruction of the first data, and the third data and the any one or more extracted features are processed to estimate a wear characteristic for the at least one tire.
    Type: Application
    Filed: September 27, 2021
    Publication date: January 20, 2022
    Inventors: Srikrishna Doraiswamy, Terence E. Wei, Jason R. Barr, Adrian C. Stalnaker, Thomas A. Sams