Patents by Inventor John R. Yost

John R. Yost 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: 11529948
    Abstract: A vehicle, and a method and system for operating the vehicle. The system includes a processor. The processor receives a driver input at the vehicle, determines a current lateral force on a tire of the vehicle for the driver input, determines a desired yaw rate and lateral velocity for the vehicle based on the current lateral force on the tire that operates the vehicle at a maximum yaw moment, and operates the vehicle at the desired yaw rate and lateral velocity.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: December 20, 2022
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Seyedeh Asal Nahidi, SeyedAlireza Kasaiezadeh Mahabadi, James H. Holbrook, John R. Yost, Hualin Tan, Xueying Kang, Bakhtiar B. Litkouhi
  • Patent number: 11097743
    Abstract: A method and system of controlling a vehicle includes providing a plurality of dynamic state inputs to a controller in the vehicle that is adapted to execute a plurality of control loops and further includes determining an operating mode of the vehicle. Based on the operating mode of the vehicle, a location of an optimum perceived yaw center of the vehicle is determined corresponding to a selected estimation technique using the dynamic state inputs and wherein the estimation technique is selected based upon the determined operating mode of the vehicle. The information related to the location of the optimum perceived yaw center may be used as input for controlling the vehicle in a dynamic state.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: August 24, 2021
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: SeyedAlireza Kasaiezadeh Mahabadi, Seyedeh Asal Nahidi, Michael W. Neal, James H. Holbrook, John R. Yost, Hualin Tan, Bakhtiar B. Litkouhi
  • Patent number: 11052757
    Abstract: Methods of controlling axle torque distribution of a vehicle during steering through a curve include collecting, via a controller: input data which is representative of a plurality of vehicle inputs; vehicle data which is representative of axle torque of the front axle and axle torque of the rear axle; and constraint data which is representative of real-time constraints of the vehicle. The collected input data, vehicle data and constraint data are communicated to a predictive model. Determining, using the predictive model, whether torque adjustments are necessary. The distribution of the axle torque of the front axle and the axle torque of the rear axle is controlled, via the controller, when the torque adjustments are necessary as determined via the predictive model.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: July 6, 2021
    Assignee: GM Global Technology Operations LLC
    Inventors: SeyedAlireza Kasaiezadeh Mahabadi, Yubiao Zhang, Seyedeh Asal Nahidi, James H. Holbrook, John R. Yost, Hualin Tan, Bakhtiar B. Litkouhi
  • Publication number: 20200339135
    Abstract: A method and system of controlling a vehicle includes providing a plurality of dynamic state inputs to a controller in the vehicle that is adapted to execute a plurality of control loops and further includes determining an operating mode of the vehicle. Based on the operating mode of the vehicle, a location of an optimum perceived yaw center of the vehicle is determined corresponding to a selected estimation technique using the dynamic state inputs and wherein the estimation technique is selected based upon the determined operating mode of the vehicle. The information related to the location of the optimum perceived yaw center may be used as input for controlling the vehicle in a dynamic state.
    Type: Application
    Filed: April 25, 2019
    Publication date: October 29, 2020
    Inventors: SeyedAlireza Kasaiezadeh Mahabadi, Seyedeh Asal Nahidi, Michael W. Neal, James H. Holbrook, John R. Yost, Hualin Tan, Bakhtiar B. Litkouhi
  • Publication number: 20200339104
    Abstract: A vehicle, and a method and system for operating the vehicle. The system includes a processor. The processor receives a driver input at the vehicle, determines a current lateral force on a tire of the vehicle for the driver input, determines a desired yaw rate and lateral velocity for the vehicle based on the current lateral force on the tire that operates the vehicle at a maximum yaw moment, and operates the vehicle at the desired yaw rate and lateral velocity.
    Type: Application
    Filed: April 23, 2019
    Publication date: October 29, 2020
    Inventors: Seyedeh Asal Nahidi, SeyedAlireza Kasaiezadeh Mahabadi, James H. Holbrook, John R. Yost, Hualin Tan, Xueying Kang, Bakhtiar B. Litkouhi
  • Publication number: 20200317048
    Abstract: Methods of controlling axle torque distribution of a vehicle during steering through a curve include collecting, via a controller: input data which is representative of a plurality of vehicle inputs; vehicle data which is representative of axle torque of the front axle and axle torque of the rear axle; and constraint data which is representative of real-time constraints of the vehicle. The collected input data, vehicle data and constraint data are communicated to a predictive model. Determining, using the predictive model, whether torque adjustments are necessary. The distribution of the axle torque of the front axle and the axle torque of the rear axle is controlled, via the controller, when the torque adjustments are necessary as determined via the predictive model.
    Type: Application
    Filed: April 5, 2019
    Publication date: October 8, 2020
    Applicant: GM Global Technology Operations LLC
    Inventors: SeyedAlireza Kasaiezadeh Mahabadi, Yubiao Zhang, Seyedeh Asal Nahidi, James H. Holbrook, John R. Yost, Hualin Tan, Bakhtiar B. Litkouhi
  • Publication number: 20190256094
    Abstract: A vehicle, system and a method of driving a performance vehicle. The system includes a sensor for detecting a value of driver input to the vehicle, and a processor. The processor is configured to compare the value of the driver input to a threshold value for the driver input, switch to a performance mode operation for the vehicle when the value of the driver input is greater than the threshold value, generate a command at the vehicle based on the value of the driver input using a performance model of the vehicle activated in the performance mode, and activate a performance actuator of the vehicle to generate a dynamic parameter at the vehicle from the command.
    Type: Application
    Filed: February 22, 2018
    Publication date: August 22, 2019
    Inventors: SeyedAlireza Kasaiezadeh Mahabadi, James H. Holbrook, Hualin Tan, John R. Yost, Xueying Kang, Bakhtiar B. Litkouhi