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41.发明申请公开(公告)号：US20220126725A1
公开(公告)日：2022-04-28
申请号：US17156535
申请日：2021-01-23
Applicant: HARBIN ENGINEERING UNIVERSITY
Inventor： Tong Wang , Guangxin Yang , Yu Wang , Shan Gao , Liwei Chen
Abstract: A method for scheduling EV battery swap based on IoV, in which the roadside units regard battery-swap station clusters with a high degree of potential cooperation as a whole, and gather them into a single battery swap area; taking a service rate of a cluster of swap stations as an assessment target, and mainly examining a service capability, a service quality, and location information of each of swap station nodes themselves, and a current state of those electric vehicles that require to swap battery; providing a solution of the best joint actions for the overall electric vehicles to maintain the overall service balance of every swap station and improve a long-term performance of Internet of Vehicles. According to the invention, a battery of the electric vehicles can be swapped as soon as possible, and every battery swap station can maintain business balance.
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公开(公告)号：US11313431B1
公开(公告)日：2022-04-26
申请号：US17497100
申请日：2021-10-08
Applicant: Harbin Engineering University
Inventor： Guoyong Jin , Junjie Yuan , Tiangui Ye , Zhigang Liu
Abstract: A quasi-zero stiffness electromagnetic vibration isolator for ultra-low frequency vibration reduction and isolation is provided. When the vibration isolator is in a static equilibrium position, upper and lower air gaps are equal, and electromagnetic attraction forces of upper and lower stator assemblies to a mover assembly are equal. When the load tends to move upwards, the mover assembly is subjected to an upward resultant force, when the load tends to move downwards, the mover assembly is subjected to a downward resultant force, showing the characteristic of negative stiffness. A negative stiffness mechanism composed of the upper stator assembly, the lower stator assembly and the mover assembly is connected in parallel with the positive stiffness springs to achieve a quasi-zero stiffness.
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公开(公告)号：US20220123626A1
公开(公告)日：2022-04-21
申请号：US17564624
申请日：2021-12-29
Applicant: Harbin Engineering University
Inventor： Long Liu , Yuanheng Tang , Chen An , Xiao Han , Junjie Liu , Qihao Mei , Hao Zhao , Zhichun Xu
Abstract: Provided is a free piston generator based on a split thermodynamic cycle, which belongs to the technical field of power energy. The present disclosure solves the problem of low power generation efficiency of an existing free piston generator. The free piston generator includes a linear generator set and two internal combustion engine sets arranged at two ends of the linear generator set. Air is first subjected to first-stage compression by the low-pressure cylinder set in the internal combustion engine sets and is then subjected to second-stage compression in the high-pressure cylinders, so that the intake pressure of an internal combustion engine is effectively increased, which is favorable for increasing the average effective pressure in a work process, thereby improving the thermal efficiency and the power generation efficiency of the free piston generator. A combusted working medium is first subjected to first-stage expansion in the high-pressure cylinders and is then subjected to second-stage expansion in the low-pressure cylinders, which effectively increases the utilization rate of energy in exhaust gas, increases the expansion work, and further improves the thermal efficiency and the power generation efficiency of the free piston generator.
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公开(公告)号：US20220120250A1
公开(公告)日：2022-04-21
申请号：US17564589
申请日：2021-12-29
Applicant: Harbin Engineering University
Inventor： Long Liu , Shihai Liu , Dai Liu , Jian Zhang , Yue Wu , Chen An , Qihao Mei , Wang Yang
Abstract: The present disclosure provides an apparatus for testing spray and combustion performance of an internal-combustion engine based on a rapid compression-expansion machine, which belongs to the testing field of internal-combustion engines. The present disclosure solves the problems that the existing test of the internal-combustion engine testing apparatus having a complex structure, is poor in adaptability, cannot be observed easily, and cannot meet the requirements of multi-fuel injection and multi-injection-pressure tests. It includes a driving mechanism, a transmission mechanism, an engine cylinder, an air intake system and an exhaust system. The engine cylinder includes a piston, a cylinder block, a dual-fuel cylinder head and a multi-injector assembly. The piston is disposed in the cylinder block. The driving mechanism is connected with the piston through the transmission mechanism and drives the piston to linearly move back and forth along a vertical direction of the cylinder block. The dual-fuel cylinder head is connected to an upper part of the cylinder block. The multi-fuel injection assembly includes a plurality of injectors. The plurality of injectors are of the same type and are all disposed on the dual-fuel cylinder head. The upper part of the cylinder block is transversely provided with an air intake and an exhaust port, and the air intake and the exhaust port are perpendicular to a moving direction of the piston. It is mainly used for testing the combustion performance.
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公开(公告)号：US20210376994A1
公开(公告)日：2021-12-02
申请号：US17444901
申请日：2021-08-11
Applicant: HARBIN ENGINEERING UNIVERSITY
Inventor： Yingfei ZAN , Lihao YUAN , Shenghua ZHONG , Duanfeng HAN , Haitao ZHU
IPC: H04L7/00
Abstract: The invention belongs to the technical field of time synchronization of computer co- simulation, and particularly relates to a time consistency synchronization method for distributed simulation. According to the time consistency synchronization method, a most appropriate master clock is selected according to votes, and then the other clocks in a network are controlled to synchronize by using the master clock, so that the consistency of data of each node and a time-related event in time logic is ensured. Even if a certain simulation node goes down, influences on the other links of the whole system are relatively small, which can effectively perform decentration, ensure the time consistency to the greatest extent, and ensure the correctness and the scale of a whole distributed system.
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Patent Agency Ranking
公开(公告)号：US20210293625A1
公开(公告)日：2021-09-23
申请号：US17227363
申请日：2021-04-11
Applicant: Harbin Engineering University
Inventor： Shan Gao , Tong Wang , Liwei Chen , Ying Cui , Chunhui Zhao , Chao Wang , Jing Jiang
Abstract: A multi-spectral temperature measuring device based on adaptive emissivity model and temperature measuring method thereof are provided, which is configured to measure the temperature of the surface of an object under a high temperature background. The present invention relates to the technical field of radiation temperature measurement. The present invention provides a multi-spectral temperature measurement device based on an adaptive emissivity model, includes a pyrometer, a radiation detector, a constant temperature furnace, a cooling cavity, a cold air inlet pipe, a cold air outlet tube, and a thermocouple and thermocouple acquisition card. In order to more accurately measure the surface temperature of the object in a high-temperature environment, a BP network is provided to adaptively find the emissivity model, and through pre-training the network, the network has a high degree of recognition, and then classifies the spectral curve to accurately output the corresponding emissivity model.
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公开(公告)号：US20210199573A1
公开(公告)日：2021-07-01
申请号：US17203893
申请日：2021-03-17
Applicant: Harbin Engineering University
Inventor： Quan DONG , Yuqin ZHANG , Di WANG , Changhao LU , Zuo NI , Xiyu YANG
Abstract: The disclosure discloses a methane value online real-time monitoring system, which includes a laser tunable system portion, a gas component detection system portion and a data processing system portion. The laser tunable system portion includes a computer, laser drivers, tunable lasers, a laser beam combiner, a collimator, and a beam expander, which are connected in sequence. The gas component detection system portion includes a gas supply system pipeline, a hose, a valve, and a gas chamber. The data processing system portion includes a detector, lock-in amplifiers, an oscilloscope, and a data acquisition card, which are connected in sequence. In a working process of the methane value online real-time monitoring system, gas mass namely the methane value change can be monitored in real time on line by collecting natural gas introduced into a combustion chamber through a gas supply system pipeline of a natural gas engine, and the knocking problem related to rapid change of the gas mass is solved. The whole system is easy to operate, low in cost, high in severe environment adaptability, low in maintenance cost, safe, free of pollution, capable of achieving real-time measurement, high
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公开(公告)号：US20200277035A1
公开(公告)日：2020-09-03
申请号：US16801346
申请日：2020-02-26
Applicant: Harbin Engineering University
Inventor： Liyun Fan , Zhaohui Xiao , Chao Xu , Yaowen Lu , Hengxi Zhang
Abstract: An object of the present disclosure is to provide a gas-electric parallel-serial hybrid marine power train system with LNG cooling, including a gas engine, an electric generator, a motor, a natural gas storage supplier. The gas engine is connected to the shaft belt motor through a gearbox, the motor is connected to the gearbox through a clutch, propellers are connected to the motor, and an engine cooling system and a fuel cell cooling system are connected to an LNG vaporization heat exchange apparatus; the electrical energy sources are the fuel cell, the electric generator and a storage battery. The arrangement of multiple power sources according to the present disclosure can meet ship requirements under various environments and circumstances, improve operating efficiencies of the gas engine, the shaft belt motor and the electric motor.
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公开(公告)号：US20200215614A1
公开(公告)日：2020-07-09
申请号：US16641176
申请日：2017-12-12
Inventor： Fengchun JIANG , Yuanping CHEN , Ding YUAN , Dacheng HUA , Chunhuan GUO
Abstract: A combined ultrasonic micro-forging device and a related additive manufacturing method for improving the microstructure and mechanical properties of additive manufactured metal part. The device comprises a transducer, a pneumatic sliding table, a pneumatic sliding table connecting frame, an amplitude transformer, a tool head and a roller, wherein the transducer is provided in a transducer housing, a socket connector and a pipeline connector are provided on the transducer housing, the amplitude transformer is connected under the transducer, the tool head is connected under the transducer, the roller is located between the tool head and workpiece, and the pneumatic sliding table is connected to the transducer housing and the amplitude transformer via the pneumatic sliding table connecting frame. The ultrasonic micro-forging device of high frequency ultrasonic impact and larger deformation produced by mechanical rolling, thereby generating a composite action of ultrasonic impact and continuous rolling micro-forging.
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50.发明申请公开(公告)号：US20170338802A1
公开(公告)日：2017-11-23
申请号：US15519823
申请日：2014-12-01
Applicant: HARBIN ENGINEERING UNIVERSITY
Inventor： Yuxin Zhao , Chang Liu , Harbin, Heilongjiang Zhang , Liqiang Liu , Gang Li , Feng Gao , Ning Li , Zhifeng Shen , Zhenxing Zhang , Zhao Qi
IPC: H03H17/02
CPC classification number: H03H17/0282 , G06F17/50 , H03H17/0202 , H03H2017/021
Abstract: The present invention provides an actually-measured marine environment data assimilation method based on sequence recursive filtering three-dimensional variation. The method includes: preprocessing actually-measured marine environment data; calculating a target function value; calculating a gradient value of a target function; calculating a minimum value of the target function; extracting space multi-scale information from the actually-measured data; and updating background field data to form a final data assimilation analysis field. The present invention improves the traditional recursive filtering three-dimensional variation method, and sequentially assimilates information with different scales, thereby effectively overcoming the problem that multi-scale information cannot be effectively extracted by a traditional three-dimensional variation method. A high-order recursive Gaussian filter is used, and a cascaded form of the high-order recursive filter is converted into a parallel structure, so that the recursive filtering process of the recursive Gaussian filter can be executed in parallel, and many problems caused by a cascaded filter are overcome.
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