Patents by Inventor Yufei Zhao

Yufei Zhao 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: 20230139551
    Abstract: A system for implementing a lane bias maneuver to avoid a vehicle comprises an autonomous vehicle and a control device associated with the autonomous vehicle. The control device detects a presence of a vehicle from sensor data revied from sensors of the autonomous vehicle. The control device determines a lateral distance between the autonomous vehicle and the vehicle. The control device compares the lateral distance with a threshold distance. The control device determines whether to instruct the autonomous vehicle to perform a lane bias maneuver based on the comparison between the lateral distance and the threshold distance. The lane bias maneuver comprises driving the autonomous vehicle off-center in a current lane traveled by the autonomous vehicle toward an opposite direction with respect to the vehicle until the lateral distance between the autonomous vehicle and the vehicle is at least equal to the threshold distance.
    Type: Application
    Filed: October 24, 2022
    Publication date: May 4, 2023
    Inventors: Yufei Zhao, Tianqu Shao, Yujia Wu, Lei Wang
  • Publication number: 20230138981
    Abstract: A control device associated with an autonomous vehicle receives sensor data and detects that the autonomous vehicle is approaching a railroad crossing based on the sensor data. The control device determines a target lane to travel while crossing the railroad. The target lane is a lane that has available space with at least a length of the autonomous vehicle on the other side of the railroad as opposed to a side of the railroad where the autonomous vehicle is currently traveling. The control device instructs the autonomous vehicle to travel on the target lane. The control device determines that a train is approaching the railroad crossing and waits for the train to pass the railroad crossing. The control device determines that the train has passed the railroad crossing. The control device instructs the autonomous vehicle to cross the railroad.
    Type: Application
    Filed: October 24, 2022
    Publication date: May 4, 2023
    Inventors: Hunter Scott Willoughby, Dishi Li, Yufei Zhao
  • Publication number: 20230138325
    Abstract: A control device associated with an autonomous vehicle receives sensor data and detects that the autonomous vehicle is approaching a railroad crossing based on the sensor data. The control device determines that the railroad crossing is closed from the sensor data. The control device determines one or more re-routing options from map data. The control device determines whether at least one re-routing option reaches a predetermined destination of the autonomous vehicle. In response to determining that the at least one re-routing option reaches the predetermined destination, the control device selects a particular re-routing option based at least on determining that the autonomous vehicle is able to travel according to the particular re-routing option autonomously. The control device instructs the autonomous vehicle to re-route according to the particular re-routing option.
    Type: Application
    Filed: October 24, 2022
    Publication date: May 4, 2023
    Inventors: Hunter Scott Willoughby, Dishi Li, Yufei Zhao
  • Publication number: 20230123611
    Abstract: An autonomous vehicle (AV) includes features that allows the AV to perform safe driving operations. An example method includes detecting that a motorcycle is operating on a roadway on which the autonomous vehicle is located. The method further includes classifying a behavior state of the motorcycle based on a location of the motorcycle relative to a split zone that extends between and into two adjacent lanes of the roadway. The behavior state indicates whether the motorcycle is lane splitting. The method further includes determining, based on the behavior state of the motorcycle, a lane permission parameter that controls whether a given trajectory for the autonomous vehicle can extend into one of the two adjacent lanes. The method further includes causing the autonomous vehicle to operate in accordance with a trajectory that satisfies the lane permission parameter based on transmitting instructions related to the trajectory to subsystems of the autonomous vehicle.
    Type: Application
    Filed: October 14, 2022
    Publication date: April 20, 2023
    Inventors: Scott Douglas FOSTER, Dishi LI, Hunter Scott WILLOUGHBY, Yufei ZHAO
  • Publication number: 20230119659
    Abstract: An autonomous vehicle (AV) includes features that allows the AV to comply with applicable regulations and statutes for performing safe driving operation. An example method includes detecting that a group of motorcycles is operating on a roadway on which the AV is located. The group of motorcycles are each located within a pre-determined distance away from one another. The method further includes determining an aggregate footprint area that surrounds respective locations of the group of motorcycles. The method further includes causing navigation of the autonomous vehicle that avoids penetration of the aggregate footprint area based on transmitting navigation instructions to one or more subsystems of the autonomous vehicle.
    Type: Application
    Filed: October 14, 2022
    Publication date: April 20, 2023
    Inventors: Scott Douglas FOSTER, Dishi LI, Hunter Scott WILLOUGHBY, Yufei ZHAO
  • Publication number: 20230124314
    Abstract: An autonomous vehicle (AV) includes features that allows the AV to comply with applicable regulations and statutes for performing safe driving operation. Example embodiments relate to an autonomous vehicle having a trailer coupled to a rear thereof. An example method includes continuously predicting a trailer trajectory that is distinct from a planned trajectory of the autonomous vehicle. The method further includes determining that the predicted trailer trajectory is within a minimum avoidance distance away from a stationary vehicle located on a roadway on which the autonomous vehicle is located. The method further includes modifying the planned trajectory of the autonomous vehicle such that the predicted trailer trajectory satisfies the minimum avoidance distance. The method further includes causing the autonomous vehicle to navigate along the modified trajectory based on transmitting instructions to one or more subsystems of the autonomous vehicle.
    Type: Application
    Filed: October 14, 2022
    Publication date: April 20, 2023
    Inventors: Scott Douglas FOSTER, Dishi LI, Hunter Scott WILLOUGHBY, Yufei ZHAO
  • Publication number: 20230123912
    Abstract: An example method includes detecting, via sensor data collected from sensors located on the AV, an upcoming object located on a roadway. The method further includes determining, from the sensor data, a relative distance and a relative direction of the upcoming object with respect to the autonomous vehicle. The method further includes mapping the upcoming object to an absolute location with respect to the roadway based on map data that describes upcoming topology of the roadway and a location of the autonomous vehicle. The method further includes associating the upcoming object with a lane of the roadway based on the absolute location mapped to the upcoming object and based on lane geometry data for the roadway. The method further includes operating the autonomous vehicle based on a relationship between the lane associated with the upcoming object and a current lane in which the autonomous vehicle is located.
    Type: Application
    Filed: October 14, 2022
    Publication date: April 20, 2023
    Inventors: Scott Douglas FOSTER, Dishi LI, Hunter Scott WILLOUGHBY, Yufei ZHAO
  • Publication number: 20230093772
    Abstract: Systems and methods for autonomous lane level navigation are disclosed. In one aspect, a control system for an autonomous vehicle includes a processor and a computer-readable memory configured to cause the processor to receive a partial high-definition (HD) map that defines a plurality of lane segments that together represent one or more lanes of a roadway, the partial HD map including at least a current lane segment. The processor is also configured to generate auxiliary global information for each of the lane segments in the partial HD map. The processor is further configured to generate a subgraph including a plurality of possible routes between the current lane segment and the destination lane segment using the partial HD map and the auxiliary global information, select one of the possible routes for navigation based on the auxiliary global information, and generate lane level navigation information based on the selected route.
    Type: Application
    Filed: August 6, 2020
    Publication date: March 23, 2023
    Inventors: Yufei Zhao, Fan Mo, Xuren Zhou
  • Publication number: 20230063989
    Abstract: A system and method for providing multiple agents for decision making, trajectory planning, and control for autonomous vehicles are disclosed.
    Type: Application
    Filed: November 9, 2022
    Publication date: March 2, 2023
    Inventors: Xing SUN, Yufei ZHAO, Wutu LIN, Zijie XUAN, Liu LIU, Kai-Chieh MA
  • Patent number: 11585218
    Abstract: A drilling device for surveying front rock-mass intactness of a tunnel face for a tunnel constructed by a TBM and a method using the same are provided. The drilling device includes a drilling assembly, a drill-attitude control assembly, a data monitoring assembly and a TBM-platform fixing seat. The drilling assembly is connected to a TBM hydraulic system to obtain power, to drill the rock mass by an alloy bit through rotation and translation thereof. The drill-attitude control assembly controls an angle, a direction and a position of a drill rod and maintains drilling accuracy and stability. The data monitoring assembly acquires and stores a drilling dynamic-response signal by a high-accuracy sensor and a data recorder, to analyze an intactness characteristic of the rock mass. The TBM-platform fixing seat mounts the drilling device on the TBM.
    Type: Grant
    Filed: August 6, 2021
    Date of Patent: February 21, 2023
    Assignee: CHINA INSTITUTE OF WATER RESOURCES AND HYDROPOWER RESEARCH
    Inventors: Yujie Wang, Ruilang Cao, Yufei Zhao, Lipeng Liu, Qiang Shen, Jin Pi, Xingsong Sun, Shangxin Feng, Lifeng Zheng
  • Publication number: 20230004165
    Abstract: A system and method for real world autonomous vehicle trajectory simulation may include: receiving training data from a data collection system; obtaining ground truth data corresponding to the training data; performing a training phase to train a plurality of trajectory prediction models; and performing a simulation or operational phase to generate a vicinal scenario for each simulated vehicle in an iteration of a simulation. Vicinal scenarios may correspond to different locations, traffic patterns, or environmental conditions being simulated. Vehicle intention data corresponding to a data representation of various types of simulated vehicle or driver intentions.
    Type: Application
    Filed: September 1, 2022
    Publication date: January 5, 2023
    Inventors: Xing SUN, Wutu LIN, Liu LIU, Kai-Chieh MA, Zijie XUAN, Yufei ZHAO
  • Patent number: 11499427
    Abstract: The disclosure discloses an adaptive lining structure of a tunnel in complex environment and a construction method thereof, and relates to the technical field of tunnel construction, comprising a lining, a pressure regulating layer and a connecting cylinder; wherein the pressure regulating layer is provided between the lining and a surrounding rock; and the connecting cylinder is provided in the tunnel and runs through the top of the lining. The adaptive lining structure of a tunnel in complex environment and the construction method in the disclosure are simple in structure, reasonable in design and convenient for efficient construction; it can deal with engineering problems such as lining cracking caused by high internal water and high external water in the tunnel, and can ensure the safety of tunnel lining in different periods.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: November 15, 2022
    Assignee: CHINA INSTITUTE OF WATER RESOURCES AND HYDROPOWER RESEARCH
    Inventors: Xiaogang Wang, Lipeng Liu, Xingsong Sun, Ruizhi Fu, Yongyu Ling, Yujie Wang, Yufei Zhao, Qingwei Duan, Xingchao Lin, Long Jiang, Ruilang Cao, Qiang Zhang, Ping Sun, Jin Pi
  • Patent number: 11500387
    Abstract: A system and method for providing multiple agents for decision making, trajectory planning, and control for autonomous vehicles are disclosed. A particular embodiment includes: partitioning a multiple agent autonomous vehicle control module for an autonomous vehicle into a plurality of subsystem agents, the plurality of subsystem agents including a deep computing vehicle control subsystem and a fast response vehicle control subsystem; receiving a task request from a vehicle subsystem; dispatching the task request to the deep computing vehicle control subsystem or the fast response vehicle control subsystem based on the content of the task request or a context of the autonomous vehicle; causing execution of the deep computing vehicle control subsystem or the fast response vehicle control subsystem by use of a data processor to produce a vehicle control output; and providing the vehicle control output to a vehicle control subsystem of the autonomous vehicle.
    Type: Grant
    Filed: August 12, 2020
    Date of Patent: November 15, 2022
    Assignee: TUSIMPLE, INC.
    Inventors: Xing Sun, Yufei Zhao, Wutu Lin, Zijie Xuan, Liu Liu, Kai-Chieh Ma
  • Publication number: 20220347346
    Abstract: Provided is a method for treating diseases related to cardiac tissue damage or cardiac insufficiency in a subject. The method includes the step of locally applying a mesenchymal stem cell sheet such as an umbilical cord mesenchymal stem cell sheet to the heart of the subject. Also provided are related use and compositions of the mesenchymal stem cell sheet.
    Type: Application
    Filed: January 22, 2021
    Publication date: November 3, 2022
    Inventors: Dehua CHANG, Jianlin MA, Shuang GAO, Juan WANG, Jing WANG, Xin JIN, Shuai LIU, Donghua LIU, Yufei ZHAO, Yang LIU, Yuqin TAN
  • Publication number: 20220317680
    Abstract: A system and method for autonomous vehicle control to minimize energy cost are disclosed. A particular embodiment includes: generating a plurality of potential routings and related vehicle motion control operations for an autonomous vehicle to cause the autonomous vehicle to transit from a current position to a desired destination; generating predicted energy consumption rates for each of the potential routings and related vehicle motion control operations using a vehicle energy consumption model; scoring each of the plurality of potential routings and related vehicle motion control operations based on the corresponding predicted energy consumption rates; selecting one of the plurality of potential routings and related vehicle motion control operations having a score within an acceptable range; and outputting a vehicle motion control output representing the selected one of the plurality of potential routings and related vehicle motion control operations.
    Type: Application
    Filed: June 17, 2022
    Publication date: October 6, 2022
    Inventors: Xing SUN, Wutu LIN, Liu LIU, Kai-Chieh MA, Zijie XUAN, Yufei ZHAO
  • Patent number: 11435748
    Abstract: A system and method for real world autonomous vehicle trajectory simulation may include: receiving training data from a data collection system; obtaining ground truth data corresponding to the training data; performing a training phase to train a plurality of trajectory prediction models; and performing a simulation or operational phase to generate a vicinal scenario for each simulated vehicle in an iteration of a simulation. Vicinal scenarios may correspond to different locations, traffic patterns, or environmental conditions being simulated. Vehicle intention data corresponding to a data representation of various types of simulated vehicle or driver intentions.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: September 6, 2022
    Assignee: TUSIMPLE, INC.
    Inventors: Xing Sun, Wutu Lin, Liu Liu, Kai-Chieh Ma, Zijie Xuan, Yufei Zhao
  • Publication number: 20220264871
    Abstract: A method for cryopreserving cells, a cell cryopreservation solution and a composition are provided. The method includes: providing a suspension for the cells to be cryopreserved in a cell cryopreservation solution; and cryopreserving the suspension. The cell cryopreservation solution includes dimethyl sulfoxide, plasma, citric acid, sodium citrate, potassium dihydrogen phosphate or sodium dihydrogen phosphate, glucose and adenine.
    Type: Application
    Filed: November 23, 2021
    Publication date: August 25, 2022
    Inventors: Donghua LIU, Dehua CHANG, Xuejiao DONG, Shuai LIU, Yufei ZHAO, YANG LIU, Yuandong LIU, Xiaotong YANG
  • Publication number: 20220227390
    Abstract: A system includes an autonomous vehicle (AV) configured to travel along a road and a control device communicatively coupled to the AV. The control device determines that the AV should move from a current lane of the road to an adjacent lane of the road. The control device determines two or more candidate windows into which the AV may move in the adjacent lane. Each candidate window corresponds to a space in the adjacent lane between two vehicles traveling in the adjacent lane. The control device determines that the AV should move into a first candidate window, and, in response to this determination, causes the AV to begin moving along a trajectory leading to the first candidate window (e.g., by accelerating or decelerating).
    Type: Application
    Filed: January 15, 2021
    Publication date: July 21, 2022
    Inventors: Lei Wang, Yujia Wu, Yufei Zhao, Weiyang Zhang, Haoming Sun
  • Publication number: 20220197283
    Abstract: A system and method for using human driving patterns to manage speed control for autonomous vehicles are disclosed. A particular embodiment includes: generating data corresponding to desired human driving behaviors; training a human driving model module using a reinforcement learning process and the desired human driving behaviors; receiving a proposed vehicle speed control command; determining if the proposed vehicle speed control command conforms to the desired human driving behaviors by use of the human driving model module; and validating or modifying the proposed vehicle speed control command based on the determination.
    Type: Application
    Filed: March 9, 2022
    Publication date: June 23, 2022
    Inventors: Wutu LIN, Liu LIU, Xing SUN, Kai-Chieh MA, Zijie XUAN, Yufei ZHAO
  • Patent number: 11366467
    Abstract: A system and method for autonomous vehicle control to minimize energy cost are disclosed. A particular embodiment includes: generating a plurality of potential routings and related vehicle motion control operations for an autonomous vehicle to cause the autonomous vehicle to transit from a current position to a desired destination; generating predicted energy consumption rates for each of the potential routings and related vehicle motion control operations using a vehicle energy consumption model; scoring each of the plurality of potential routings and related vehicle motion control operations based on the corresponding predicted energy consumption rates; selecting one of the plurality of potential routings and related vehicle motion control operations having a score within an acceptable range; and outputting a vehicle motion control output representing the selected one of the plurality of potential routings and related vehicle motion control operations.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: June 21, 2022
    Assignee: TUSIMPLE, INC.
    Inventors: Xing Sun, Wutu Lin, Liu Liu, Kai-Chieh Ma, Zijie Xuan, Yufei Zhao