Patents by Inventor Aizhen Xie

Aizhen Xie 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: 11813752
    Abstract: A mobile manipulation control method of a quadruped robot with an operation arm, including: obtaining current pose information of the legged mobile manipulator; decomposing a task into subtasks, and prioritizing the subtasks; based on the pose information and a dynamic model, generating a motion trajectory under each subtask; based on the dynamic model, optimizing an optimal plantar force of a supporting leg and an end-of-arm force under each subtask; based on a multi-task spatial projection method, calculating desired control quantity of all joints under different subtasks; and (d) optimizing the optimal plantar force and the desired control quantity with the whole-body dynamic model as a constraint to obtain control torques; and based on the control torques, controlling the legged mobile manipulator's motion. A control system is further provided.
    Type: Grant
    Filed: June 6, 2023
    Date of Patent: November 14, 2023
    Assignee: Shandong University
    Inventors: Xuewen Rong, Aizhen Xie, Teng Chen, Guoteng Zhang, Yibin Li, Guanglin Lu, Jian Bi, Yong Fan
  • Publication number: 20230311320
    Abstract: A mobile manipulation control method of a quadruped robot with an operation arm, including: obtaining current pose information of the legged mobile manipulator; decomposing a task into subtasks, and prioritizing the subtasks; based on the pose information and a dynamic model, generating a motion trajectory under each subtask; based on the dynamic model, optimizing an optimal plantar force of a supporting leg and an end-of-arm force under each subtask; based on a multi-task spatial projection method, calculating desired control quantity of all joints under different subtasks; and (d) optimizing the optimal plantar force and the desired control quantity with the whole-body dynamic model as a constraint to obtain control torques; and based on the control torques, controlling the legged mobile manipulator's motion. A control system is further provided.
    Type: Application
    Filed: June 6, 2023
    Publication date: October 5, 2023
    Inventors: Xuewen RONG, Aizhen XIE, Teng CHEN, Guoteng ZHANG, Yibin LI, Guanglin LU, Jian BI, Yong FAN