Patents by Inventor Kaiser Xu

Kaiser Xu 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: 12291288
    Abstract: A system for controlling an end-of-travel of a handwheel is disclosed. The system comprises: a processor; and a memory that includes instructions that, when executed by the processor, cause the processor to: receive sensor data from at least one sensor associated with a roadwheel actuator of a vehicle; determine, based on the sensor data, a mechanical end-of-travel value of the roadwheel actuator of a roadwheel actuator of the vehicle; determine, based on the mechanical end-of-travel value of the roadwheel actuator and a speed of the vehicle, a handwheel actuator end-of-travel active value and an end-of-travel damping value; determine an end-of-travel value of a handwheel actuator based on the handwheel actuator end-of-travel active value, the end-of-travel damping value, and a reference torque value; and selectively control the handwheel of the vehicle based on the end-of-travel value of the handwheel actuator.
    Type: Grant
    Filed: September 2, 2022
    Date of Patent: May 6, 2025
    Assignee: Steering Solutions IP Holding Corporation
    Inventors: Kaiser Xu, Roger Liu
  • Publication number: 20240375706
    Abstract: A method for cooperative vehicle operation includes receiving a first target angle signal associated with a handwheel of a vehicle, receiving a second target angle signal associated with an autonomous steering system of the vehicle, and, in response to a determination that a handwheel angle error between the first target angle signal and the second target angle signal is less than a handwheel error threshold: generating a handwheel motor torque command based on a position control motor torque command and a torque control motor torque command; and controlling a position of the handwheel of the vehicle based on the handwheel motor torque command.
    Type: Application
    Filed: May 16, 2023
    Publication date: November 14, 2024
    Inventor: Kaiser Xu
  • Publication number: 20240059345
    Abstract: A system for controlling an end-of-travel of a handwheel is disclosed. The system comprises: a processor; and a memory that includes instructions that, when executed by the processor, cause the processor to: receive sensor data from at least one sensor associated with a roadwheel actuator of a vehicle; determine, based on the sensor data, a mechanical end-of-travel value of the roadwheel actuator of a roadwheel actuator of the vehicle; determine, based on the mechanical end-of-travel value of the roadwheel actuator and a speed of the vehicle, a handwheel actuator end-of-travel active value and an end-of-travel damping value; determine an end-of-travel value of a handwheel actuator based on the handwheel actuator end-of-travel active value, the end-of-travel damping value, and a reference torque value; and selectively control the handwheel of the vehicle based on the end-of-travel value of the handwheel actuator.
    Type: Application
    Filed: September 2, 2022
    Publication date: February 22, 2024
    Inventors: Kaiser Xu, Roger Liu
  • Patent number: 11180191
    Abstract: A method for unintended steering mitigation includes receiving at least one hand wheel measurement correspond to a hand wheel of a vehicle. The method also includes determining a hand wheel return value corresponding to the at least one hand wheel measurement. The method also includes receiving a torque value corresponding to propulsion of the vehicle. The method also includes determining whether the torque value is above a threshold. The method also includes, in response to a determination that the torque value is above the threshold adjusting the hand wheel return value based on the torque value and selectively controlling return of the hand wheel based on the adjusted hand wheel return value.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: November 23, 2021
    Assignee: Steering Solutions IP Holding Corporation
    Inventors: Xinfu (Kaiser) Xu, Young Jaepil Chang
  • Publication number: 20210188349
    Abstract: A method for unintended steering mitigation includes receiving at least one hand wheel measurement correspond to a hand wheel of a vehicle. The method also includes determining a hand wheel return value corresponding to the at least one hand wheel measurement. The method also includes receiving a torque value corresponding to propulsion of the vehicle. The method also includes determining whether the torque value is above a threshold. The method also includes, in response to a determination that the torque value is above the threshold adjusting the hand wheel return value based on the torque value and selectively controlling return of the hand wheel based on the adjusted hand wheel return value.
    Type: Application
    Filed: December 23, 2019
    Publication date: June 24, 2021
    Inventors: Xinfu (Kaiser) Xu, Young Jaepil Chang