公开(公告)号：US10953898B1

公开(公告)日：2021-03-23

申请号：US17077575

申请日：2020-10-22

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY

Inventor： Chunwei Zhang ,  Hao Wang ,  Yang Xu

IPC: B61L3/00 ,  B61L15/00

Abstract: An active control system for rolling behaviors of high-speed trains includes a sensor, a controller and an output device. The output device includes a power unit, an output unit and a casing. The power unit and the output unit are arranged inside the casing. The active control system applies active control torque to the shaking, rolling and nodding of the train body so as to control the train.

公开(公告)号：US11685877B2

公开(公告)日：2023-06-27

申请号：US17421219

申请日：2020-07-21

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY

Inventor： Qinglun Che ,  Jianjun Zhang ,  Sen Liang ,  Ning Cui ,  Binjiang Lv ,  Yang Xu ,  Xinghua Ma

IPC: C10M173/02 ,  C10M125/02 ,  C10M161/00 ,  C10N20/06 ,  C10N30/06

CPC classification number: C10M173/02 ,  C10M125/02 ,  C10M161/00 ,  C10M2201/02 ,  C10M2201/041 ,  C10M2201/062 ,  C10M2201/066 ,  C10M2217/046 ,  C10N2020/06 ,  C10N2030/06

Abstract: A super-lubricity water lubricating additive, a super-lubricity water lubricant, a preparation method and application, wherein the additive is of a hollow spherical shell structure which includes at least one layer of spherical shell; the spherical shell sequentially includes a first polydopamine layer, a nanoparticle layer, a second polydopamine layer and an oxidized graphene layer from inside to outside, or a first polydopamine layer, a nanoparticle layer, a second polydopamine layer, a graphene layer and a third polydopamine layer from inside to outside; and nanoparticles of the nanoparticle layer are nano diamond, nano molybdenum disulfide or nano tungsten disulfide. The additive is prepared into a uniform aqueous solution to obtain the super-lubricity water lubricant. The additive can be easily adsorbed on a dual surface, and the nanoparticles released in a friction process cooperate with spherical oxidized graphene or graphene to form rolling friction so as to reduce frictional abrasion.

公开(公告)号：US20230304689A1

公开(公告)日：2023-09-28

申请号：US17876165

申请日：2022-07-28

Applicant: Qingdao University of Technology ,  Zhejiang University

Inventor： Yanxue Li ,  Wenya Xu ,  Yue Gu ,  Yang Xu ,  Weijun Gao

IPC: F24F11/63 ,  F24F11/49 ,  G16H40/20

CPC classification number: F24F11/63 ,  F24F11/49 ,  G16H40/20

Abstract: The present disclosure provides a Q-leaming based model-free control method for an indoor thermal environment of an aged care building and belongs to the technical field of building environment control. According to the present disclosure, the monitored indoor temperatures of individual users and the heart rate and systolic pressure data of the aged are used as input data to a constructed Q-learning model, thus outputting a running control policy for a heating, ventilation and air conditioning system in the corresponding building. As a result, the control efficiency of the indoor temperature and the energy efficiency of the heating, ventilation and air conditioning system are improved. Compared with a traditional control model, the reinforced learning method based on the Q-leaming theory can realize more accurate prediction on the cardiovascular health risk of the aged and can create a dynamic indoor thermal environment more suitable for the physical health of the aged.