公开(公告)号：US20240068308A1

公开(公告)日：2024-02-29

申请号：US18455878

申请日：2023-08-25

Applicant: HEFEI DESIGN & RESEARCH INSTITUTE OF COAL INDUSTRY CO., LTD ,  UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING ,  CHINA COAL NO.3 CONSTRUCTION CORPORATION (GROUP) LTD ,  ANSTEEL GROUP MINING CORPORTION LIMITED

Inventor： Huidong XU ,  Renshu YANG ,  Bin XU ,  Ning LIU ,  Guang LI ,  Yong ZHANG ,  Jinghui YE ,  Lin LV ,  Fei MA ,  Donghui MAN ,  Tingting BAO ,  Zheng LI ,  Yingcan LIU ,  Guozheng ZHOU ,  Bo DING

IPC: E21B21/00 ,  E21B10/26 ,  E21B10/42 ,  E21B17/10

CPC classification number: E21B21/002 ,  E21B10/26 ,  E21B10/42 ,  E21B17/1057

Abstract: A full-face shaft tunnel boring machine system includes a tunnel boring machine cutterhead device for tunneling downwards in a shaft; a full-hydraulic formwork device for supporting and walling in a wellbore; and an upper muck-discharge system for vertically conveying rock mucks generated by tunneling. The tunnel boring machine cutterhead device comprises a vertical guide frame, a cutter-expanded boring head and an advanced cutterhead that are fixedly connected in a vertical order from top to bottom so as to form an integrated structure. The vertical guide frame is a hollow cylindrical structure and driven to rotate around an axis of the vertical guide frame by a power mechanism, and an outer wall of the vertical guide frame is provided with multiple sets of first guide rollers.

公开(公告)号：US20240253621A1

公开(公告)日：2024-08-01

申请号：US18396745

申请日：2023-12-27

Applicant: University of Science and Technology Beijing

Inventor： Jingliang DUAN ,  Liming XIAO ,  Junjie ZHAO ,  Guangyuan YU ,  Xuan LI ,  Chen HUANG ,  Fei MA

IPC: B60W30/095 ,  B60W60/00

CPC classification number: B60W30/0956 ,  B60W60/0015 ,  B60W2540/18 ,  B60W2556/10

Abstract: An intervention-based shared control method and apparatus in forward collision avoidance scenario of autonomous vehicle includes: acquiring vehicle state data of the autonomous vehicle and inputting the vehicle state data into a constructed forward collision avoidance control model to obtain an optimal nominal collision avoidance trajectory of the autonomous vehicle; and acquiring steering input data of a driver in controlling the autonomous vehicle, and obtaining the shared control method in the forward collision avoidance scenario of the autonomous vehicle. The present disclosure proposes a vehicle model decoupling method for control solution and risk prediction in a high-velocity forward collision avoidance scenario.

公开(公告)号：US20210148080A1

公开(公告)日：2021-05-20

申请号：US16950926

申请日：2020-11-18

Applicant: University of Science and Technology Beijing

Inventor： Fei MA ,  Chun JIN ,  Yuchao LIU ,  Yanhua SHEN ,  Lulu GAO

IPC: E02F3/36

Abstract: A multi-degree-of-freedom automatic center-adjusting device, a hydraulic quick-coupling device, and rescue equipment are provided. The automatic center-adjusting device includes an active coupling valve set, a spring, and a dynamic adjustment swing rack. A first end of the dynamic adjustment swing rack is fixed to operation tools, and a second end of the dynamic adjustment swing rack is connected to the active coupling valve set through the spring. The dynamic adjustment swing rack includes a frame, a limit slot, and a spring limit cylinder, wherein the frame is used to support and fix the active coupling valve set, the limit slot is used to define a limit activity position of the active coupling valve set, and the spring limit cylinder is used to constrain the spring. The automatic center-adjusting device is used to solve technical problems of position errors and a center mismatch in a coupling process.