Patents by Inventor CHIEN-LIANG FOK

CHIEN-LIANG FOK 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).

  • Publication number: 20230347925
    Abstract: A method for agent and scenario modeling is described. The method includes analyzing, through a model-based systems engineering (MBSE) model, high-level events extracted from driving log data to identify a dataset of interest from the driving log data. The method also includes extracting an episode of interest from the dataset of interest according to an MBSE state transition diagram. The method further includes generating a driving scenario of interest based on the episode of interest. The method also includes utilizing the driving scenario of interest to parameterize agent and/or scenario models used for autonomous operation of an ego vehicle.
    Type: Application
    Filed: April 29, 2022
    Publication date: November 2, 2023
    Applicants: TOYOTA RESEARCH INSTITUTE, INC., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Daniel STONIER, Sachit VITHALDAS, Chien-Liang FOK
  • Patent number: 11699003
    Abstract: A simulation system includes a storage module comprising a plurality of behaviors and an electronic control unit. The electronic control unit is configured to define an agent for use in a simulation, where the agent comprises one or more of the plurality of behaviors from the storage module and the agent is capable of implementation on a plurality of different simulators, establish a contract with a first simulator and the agent to provide a consistent boundary between the agent and the first simulator, and execute the simulation of a device in a simulation environment with the first simulator and the agent.
    Type: Grant
    Filed: November 16, 2020
    Date of Patent: July 11, 2023
    Assignee: Toyota Research Institute, Inc.
    Inventors: Andrew P. Best, Chien-Liang Fok, Sachit P. Vithaldas
  • Patent number: 11610504
    Abstract: Systems and methods for scenario marker infrastructure are disclosed. In one embodiment, a method comprises receiving driving scenario data, extracting simulated sensor data from the driving scenario data, extracting scenario markers from the driving scenario data, inputting the simulated sensor data into autonomous driving software, receiving driving instructions output by the driving software, updating a driving status of the autonomous vehicle based on the driving instructions output by the autonomous driving software, creating a simulation log comprising the simulated sensor data and the driving instructions, and inserting the scenario markers into the simulation log.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: March 21, 2023
    Inventors: Chien-Liang Fok, Zachary F. Winter
  • Publication number: 20220156431
    Abstract: A simulation system includes a storage module comprising a plurality of behaviors and an electronic control unit. The electronic control unit is configured to define an agent for use in a simulation, where the agent comprises one or more of the plurality of behaviors from the storage module and the agent is capable of implementation on a plurality of different simulators, establish a contract with a first simulator and the agent to provide a consistent boundary between the agent and the first simulator, and execute the simulation of a device in a simulation environment with the first simulator and the agent.
    Type: Application
    Filed: November 16, 2020
    Publication date: May 19, 2022
    Applicant: TOYOTA RESEARCH INSTITUTE, INC.
    Inventors: Andrew P. Best, Chien-Liang Fok, Sachit P. Vithaldas
  • Publication number: 20210398441
    Abstract: Systems and methods for scenario marker infrastructure are disclosed. In one embodiment, a method comprises receiving driving scenario data, extracting simulated sensor data from the driving scenario data, extracting scenario markers from the driving scenario data, inputting the simulated sensor data into autonomous driving software, receiving driving instructions output by the driving software, updating a driving status of the autonomous vehicle based on the driving instructions output by the autonomous driving software, creating a simulation log comprising the simulated sensor data and the driving instructions, and inserting the scenario markers into the simulation log.
    Type: Application
    Filed: June 17, 2020
    Publication date: December 23, 2021
    Applicant: Toyota Research Institute, Inc.
    Inventors: Chien-Liang Fok, Zachary F. Winter
  • Publication number: 20210356277
    Abstract: Systems and methods are provided for validating a map via automatic test generation for multiple test route subsections. Autonomous vehicles required accurate maps. As such, new maps may be added and/or maps map be updated frequently. Verifying these maps requires testing. Maps may be validated via automatic test generation by obtaining route information identifying a route in the map for an autonomous vehicle. The route may be segmented into multiple test route subsections. Features corresponding to one or more of the test route subsections may be identified. One or more validation tests corresponding to the test route subsections may be generated based on a simulated autonomous vehicle traversing the one or more road features. For example, multiple validation tests for corresponding test route subsections may be generated and executed in parallel.
    Type: Application
    Filed: May 12, 2020
    Publication date: November 18, 2021
    Inventor: CHIEN-LIANG FOK