Patents by Inventor Bharat Singh

Bharat Singh 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: 9650053
    Abstract: An optimal tire slip ratio estimation system and method affixes a tire-identification device to a vehicle tire to provide a tire-specific identification and one or more sensors affixed to the tire for measuring one or more tire-specific parameters. A model-based optimal slip ratio estimator generates a model-derived optimal tire slip ratio estimation based upon an assessment of sensor-derived tire-specific parameter information based on the tire-specific identification.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: May 16, 2017
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Kanwar Bharat Singh, Srikanth Veppathur Sivaramakrishnan
  • Publication number: 20170129498
    Abstract: A tire tracking system and method for tracking travel mileage experienced by a vehicle tire includes multiple tire-based sensors affixed to the tire generating identified tire-specific operating condition measurements. The tire-specific operating condition measurements include tire temperature, tire air inflation pressure, a tire wear state measurement and a tire load measurement. A rolling radius estimation model generates a tire rolling radius estimation compensated by the tire-specific operating condition measurements and a vehicle speed estimator generates a vehicle speed estimation based on the compensated tire rolling radius.
    Type: Application
    Filed: November 11, 2015
    Publication date: May 11, 2017
    Inventors: Kanwar Bharat Singh, Peter Jung-min Suh
  • Patent number: 9636955
    Abstract: A tire-based system and method for estimating a radially outward tire surface temperature of an identified tire supporting an identified vehicle includes a temperature sensor to measure a tire inner liner temperature. An algorithmic prediction model is empirically trained to correlate inner liner tire temperature to tire radially outward surface temperature for the tire/vehicle combination. The empirically trained algorithmic prediction model receives a steady state temperature-based model inputs including the tire inner liner temperature and an ambient temperature measurement and transient behavior vehicle-based inputs. Based upon the steady state inputs and the transient behavior inputs, a radially outward tire surface temperature estimation is made.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: May 2, 2017
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Kanwar Bharat Singh, Srikanth Veppathur Sivaramakrishnan, Anthony William Parsons
  • Publication number: 20170113494
    Abstract: A tire wear state estimation system estimates forces and sliding velocity generated in a tire contact patch, determines frictional energy from the tire force and sliding velocity, and generates an estimate of tire wear state based upon the frictional work done by the tire. A tire wear estimate, pursuant to the system and methodology, is made by determining the amount of frictional work performed by the tire through the integrated use of tire-mounted, GPS sourced, and vehicle-mounted sensor information.
    Type: Application
    Filed: October 21, 2015
    Publication date: April 27, 2017
    Inventors: Kanwar Bharat Singh, Marc Engel
  • Publication number: 20170113495
    Abstract: A tire wear state estimation system includes a vehicle-based sensor for measuring wheel speed of a tire-supporting and first and second features extracted from the wheel speed signal. A data classifier conducts a classification of the first extraction feature data relative to the second extraction feature data by a statistical analysis of the wheel speed signal to estimate the wear state of the tire.
    Type: Application
    Filed: October 21, 2015
    Publication date: April 27, 2017
    Inventor: Kanwar Bharat Singh
  • Publication number: 20170113499
    Abstract: A method for estimating a tire state, such as tire wear state, includes utilizing a vehicle-based sensor for measuring a wheel speed of the tire and generating a wheel speed signal, extracting through statistical analysis a first extracted feature such as slip-ratio rate from the wheel speed signal, extracting through statistical analysis a second extracted feature such as median slip-ratio from the wheel speed signal, classifying data from the first extracted feature and data from the second extracted feature using a support vector data classification algorithm and applying the algorithm to estimate the tire state.
    Type: Application
    Filed: October 21, 2015
    Publication date: April 27, 2017
    Inventor: Kanwar Bharat Singh
  • Publication number: 20170102293
    Abstract: A tire state estimation system is provided for estimating normal force, lateral force and longitudinal forces based on CAN-bus accessible sensor inputs; the normal force estimator generating the normal force estimation from a summation of longitudinal load transfer, lateral load transfer and static normal force using as inputs lateral acceleration, longitudinal acceleration and roll angle derived from the input sensor data; the lateral force estimator estimating lateral force using as inputs measured lateral acceleration, longitudinal acceleration and yaw rate; and the longitudinal force estimator estimating the longitudinal force using as inputs wheel angular speed and drive/brake torque derived from the input sensor data.
    Type: Application
    Filed: October 9, 2015
    Publication date: April 13, 2017
    Inventor: Kanwar Bharat Singh
  • Publication number: 20170101108
    Abstract: A tire state estimation method is provided for estimating normal force, lateral force and longitudinal forces based on CAN-bus accessible sensor inputs, including deploying a normal force estimator generating the normal force estimation from a summation of longitudinal load transfer, lateral load transfer and static normal force using as inputs lateral acceleration, longitudinal acceleration and roll angle derived from the input sensor data; deploying a lateral force estimator estimating lateral force using as inputs measured lateral acceleration, longitudinal acceleration and yaw rate; and deploying a longitudinal force estimator estimating the longitudinal force using as inputs wheel angular speed and drive/brake torque derived from the input sensor data.
    Type: Application
    Filed: October 9, 2015
    Publication date: April 13, 2017
    Inventor: Kanwar Bharat Singh
  • Patent number: 9610810
    Abstract: A method for estimating a tire state, such as tire wear state, includes utilizing a vehicle-based sensor for measuring a wheel speed of the tire and generating a wheel speed signal, extracting through statistical analysis a first extracted feature such as slip-ratio rate from the wheel speed signal, extracting through statistical analysis a second extracted feature such as median slip-ratio from the wheel speed signal, classifying data from the first extracted feature and data from the second extracted feature using a support vector data classification algorithm and applying the algorithm to estimate the tire state.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: April 4, 2017
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Kanwar Bharat Singh
  • Publication number: 20170010184
    Abstract: A vehicle state estimation system and method uses an observer model to make cornering stiffness estimates from tire-based sensor data and vehicle-based sensor data throughout transient and non-transient operational maneuvers of a vehicle. A cornering stiffness identifier extracts transient-state cornering stiffness estimates from the cornering stiffness estimates made by the observer model and extracts from the transient-state cornering stiffness estimates an optimal transient-state cornering stiffness estimate having a substantially highest confidence measure for use by a vehicle control system.
    Type: Application
    Filed: July 8, 2015
    Publication date: January 12, 2017
    Inventor: Kanwar Bharat Singh
  • Patent number: 9522578
    Abstract: A tire sensor locating system for auto-location of a tire-based air pressure sensor at any tire location on a vehicle includes a hub acceleration sensor mounted to make a hub vertical acceleration measurement at a preset and known location on the vehicle for a respective one of the wheel hubs and a chassis acceleration sensor mounted to a chassis of the vehicle to make a chassis vertical acceleration measurement for the vehicle chassis. An estimator model is employed to derive a tire vertical stiffness estimation from the hub vertical acceleration measurements and the chassis vertical acceleration measurement. A look-up table correlates tire vertical stiffness estimation against measured tire air pressure and from the look-up table an assigned location of the tire sensor is made through a correlation between the tire measured air pressure and the tire vertical stiffness estimation.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: December 20, 2016
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Kanwar Bharat Singh
  • Publication number: 20160323659
    Abstract: A tire tracking system and method for tracking travel mileage experienced by a vehicle tire includes a tire-affixed identification transponder operative to generate tire-specific identification data; a vehicle-based incremental vehicle travel distance estimator for generating a synchronous stream of incremental vehicle travel distance estimations; and a timestamp synchronization and distance traveled estimator operative to generate a continuous synchronous stream of incremental tire travel distance estimations from the incremental vehicle travel distance estimations. A mobile network uploads the incremental tire travel distance estimations and the tire-specific identification data to a remote server that generates an aggregate of the tire travel distance estimations in a form accessible by the tire-specific identification data.
    Type: Application
    Filed: April 29, 2015
    Publication date: November 3, 2016
    Inventors: Kanwar Bharat Singh, Amrita Patel, Peter Jung-min Suh
  • Patent number: 9442045
    Abstract: A tire-based system and method for estimating longitudinal stiffness between a tire and a road surface includes a longitudinal stiffness adaptation model for calculating longitudinal stiffness between a tire and a road surface from a plurality of scaling factors including the load level, the measured air cavity pressure of the one tire, and the measured temperature of the one tire compensated by a wear state estimation of the one tire. The wear state is obtained from a vehicle-measured vertical mode shift of the tire.
    Type: Grant
    Filed: April 3, 2014
    Date of Patent: September 13, 2016
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Kanwar Bharat Singh
  • Patent number: 9434409
    Abstract: A tire-based system and method for adapting the calculation of temperature-sensitive tire characteristics includes one or more tire-mounted temperature sensors mounted to a vehicle tire for measuring a tire temperature at a tire radially outward surface; an algorithmic model adapting one or more temperature-sensitive tire characteristics by the measured tire surface temperature; and vehicle controls using the temperature-sensitive tire characteristics adapted by the tire surface temperature in one or more vehicle control commands.
    Type: Grant
    Filed: April 3, 2014
    Date of Patent: September 6, 2016
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Kanwar Bharat Singh
  • Patent number: 9428013
    Abstract: A tire wear state estimation system includes as inputs an axle force estimation, a measured tire inflation pressure; a tire load estimation; a tire cornering stiffness estimation; and a tire identification by which a specific tire-based correlation model correlates tire inflation pressure, the tire load estimation, the tire cornering stiffness estimation, and the vehicle-based sensor axle force estimation.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: August 30, 2016
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Kanwar Bharat Singh
  • Publication number: 20160159365
    Abstract: A road friction estimation system and method includes tire-affixed sensors and on-board vehicle sensors, a model-based tire force estimator operable generating from sensor-input a model-derived tire force estimation, a vehicle observer generating an observer-derived tire force estimation and a friction estimator generating a road friction estimation from a comparison of the model-derived tire force estimation and the observer-derived tire force estimation.
    Type: Application
    Filed: December 3, 2014
    Publication date: June 9, 2016
    Inventor: Kanwar Bharat Singh
  • Publication number: 20160159367
    Abstract: An optimal tire slip ratio estimation system and method affixes a tire-identification device to a vehicle tire to provide a tire-specific identification and one or more sensors affixed to the tire for measuring one or more tire-specific parameters. A model-based optimal slip ratio estimator generates a model-derived optimal tire slip ratio estimation based upon an assessment of sensor-derived tire-specific parameter information based on the tire-specific identification.
    Type: Application
    Filed: December 3, 2014
    Publication date: June 9, 2016
    Inventors: Kanwar Bharat Singh, Srikanth Veppathur Sivaramakrishnan
  • Publication number: 20160161373
    Abstract: A system for predicting tire lift-off propensity of a vehicle tire includes a vehicle tire-affixed tire-identification device for providing a tire-specific identification, multiple tire-affixed sensors mounted to the tire measuring tire-specific parameters and generating tire-specific parameter information, one or more vehicle-affixed sensor(s) mounted to the vehicle to measure vehicle speed and a lift-off propensity estimator generating a lift-off propensity for the vehicle tire from a database containing experimentally-derived, tire-ID specific, lift-off propensities correlated with measured tire-specific parameter information and vehicle speeds.
    Type: Application
    Filed: December 3, 2014
    Publication date: June 9, 2016
    Inventors: Kanwar Bharat Singh, Anthony William Parsons, Marc Engel
  • Patent number: 9358846
    Abstract: A load estimation system and method for estimating vehicle load includes a tire rotation counter for generating a rotation count from rotation of a tire; apparatus for measuring distance travelled by the vehicle; an effective radius calculator for calculating effective radius of the tire from the distance travelled and the rotation count; and a load estimation calculator for calculating the load carried by the vehicle tire from the effective radius of the tire. A center of gravity height estimation may be made from an estimated total load carried by the tires supporting the vehicle pursuant to an estimation of effective radius for each tire and a calculated load carried by each tire from respective effective radii.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: June 7, 2016
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Kanwar Bharat Singh, John Michael Fenkanyn, Amrita Patel, Peter Jung-min Suh, Arthur Allen Goldstein
  • Publication number: 20160146706
    Abstract: A tire cornering stiffness estimation system and method includes multiple tire-affixed sensors mounted to a supportive vehicle tire for operably measuring tire-specific parameters and generating tire-specific information relating tire pressure, temperature, wear state, tire identification and tire loading. One or more accelerometer(s) are mounted to the hub supporting the tire to generate a hub accelerometer signal. A model-based tire cornering stiffness estimator is included to generate a model-derived tire cornering stiffness estimation based upon the hub accelerometer signal adapted by the tire-specific information.
    Type: Application
    Filed: November 21, 2014
    Publication date: May 26, 2016
    Inventor: Kanwar Bharat Singh