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1. 发明公开

US20240313692A1 BRAKING TEMPERATURE CONTROL METHOD AND SYSTEM FOR ELECTROMECHANICAL BRAKE 审中-公开
公开(公告)号：US20240313692A1
公开(公告)日：2024-09-19
申请号：US18672698
申请日：2024-05-23
申请人： INSTITUTE OF ELECTRICAL ENGINEERING, CHINESE ACADEMY OF SCIENCES
发明人： Xiaolong LI , Lifang WANG , Jinfang GOU , Zhigang ZHANG
IPC分类号： H02P29/64 , B60T8/172 , B60T8/1755 , B60T17/22 , F16D65/78
CPC分类号： H02P29/64 , B60T8/172 , B60T8/17554 , B60T17/22 , F16D65/78 , F16D2065/783
摘要： Provided are a braking temperature control method and system for an electromechanical brake. In the braking temperature control method for an electromechanical brake provided by the present disclosure, an intermediate temperature is obtained based on temperatures acquired by thermistors mounted on a stator winding, and a braking temperature control solution is generated based on a relationship between the intermediate temperature and a preset temperature, to control the heating of an electromechanical braking (EMB) driving motor. Therefore, under a conventional temperature control strategy, the operating environment of the EMB driving motor can be effectively improved, and the EMB efficiency is ensured. In addition, in a high-temperature abnormal operating state of the EMB driving motor, the operating temperature of the driving motor can be effectively controlled through a braking force redistribution strategy, thereby avoiding the braking failure caused by motor overheating.

2. 发明公开

US20240262333A1 CONFIGURATION CONTROL METHOD AND CONTROL SYSTEM FOR ELECTRONIC MECHANICAL BRAKE-BY-WIRE SYSTEM 审中-公开
公开(公告)号：US20240262333A1
公开(公告)日：2024-08-08
申请号：US18637973
申请日：2024-04-17
申请人： INSTITUTE OF ELECTRICAL ENGINEERING, CHINESE ACADEMY OF SCIENCES
发明人： Xiaolong LI , Lifang WANG , Junzhi ZHANG , Chengkun HE , Dongsheng SUN , Junfeng ZHANG
IPC分类号： B60T13/74 , B60T17/22
CPC分类号： B60T13/741 , B60T17/221 , B60T2270/406
摘要： A configuration control method for an electronic mechanical brake-by-wire system is Provided. The control method includes: acquiring a first actual output torque measured by the first torque sensor and a second actual output torque measured by the second torque sensor; if a received signal is a brake loading signal, separately comparing a first difference with an initial torque difference and a maximum torque difference when a motor fails to obtain a comparison result, where the first difference is an absolute value of a difference between the first actual output torque and the second actual output torque; and controlling the first motor and the second motor according to the comparison result to complete brake loading by means of the brake actuator. Also provided is a configuration control system for an electronic mechanical brake-by-wire system. The control method and the control system can achieve synchronous and precise control of a brake force.

3. 发明授权

US11088625B1 Three-phase CLLC bidirectional DC-DC converter and a method for controlling the same 有权
公开(公告)号：US11088625B1
公开(公告)日：2021-08-10
申请号：US17012020
申请日：2020-09-03
申请人： INSTITUTE OF ELECTRICAL ENGINEERING, CHINESE ACADEMY OF SCIENCES
发明人： Guoen Cao , Yibo Wang , Rui Cao , Zhe Wang , Yong Zhao
IPC分类号： H02M3/335 , H02M3/00 , H02M1/00
摘要： This invention proposes a three-phase CLLC bidirectional DC-DC converter, which includes a high-voltage side voltage dividing capacitor module, a three-phase half-bridge series module, a three-phase half-bridge parallel module, a three-phase primary/secondary side resonant module, a three-phase isolation transformer and a low-voltage side capacitor module. The high-voltage side voltage dividing capacitor module includes three voltage dividing capacitors. The three-phase half-bridge series/parallel module includes three bridge arms connected in series/parallel. Each bridge arm includes two switches connected in series. The three-phase primary/secondary side resonant module includes a, b, c three-phase primary/secondary side resonant tank. The three-phase isolation transformer includes three single-phase transformers a, b, and c. The voltage of the high-voltage side is divided through the voltage dividing capacitors to reduce the voltage stress of the switches, and the switching loss is diminished via the high-frequency soft switching technology.

4. 发明授权

US10807498B2 Control method for series hybrid power system or synergic electric power supply and control device thereof 有权
公开(公告)号：US10807498B2
公开(公告)日：2020-10-20
申请号：US16286634
申请日：2019-02-27
申请人： INSTITUTE OF ELECTRICAL ENGINEERING, CHINESE ACADEMY OF SCIENCES
发明人： Youlong Wang , Hongyang Li , Meng Peng , Jialin Wei , Xuhui Wen
IPC分类号： B60L58/14 , H02M7/04 , B60L58/15 , B60L50/61
摘要： A control method for a series hybrid power system or synergic electric power supply and a control device thereof are disclosed. The control device includes: a generator reference current value generating module and a generator current control module. The generator reference current value generating module is configured to generate a reference current value of a generator according to an actual current value of an energy storage device, a reference current value of the energy storage device, an actual voltage value of a DC bus, and a reference voltage value of the DC bus. The generator current control module is configured to generate a control signal of a rectifier according to the reference current value of the generator, the actual value of any two-phase current of the generator, and an actual angular velocity of the generator, thereby controlling the series hybrid power system or the synergic electric power supply.

5. 发明授权

US09712093B2 Device and method for inhibiting vibration of superconducting magnetic suspension rotor 有权
公开(公告)号：US09712093B2
公开(公告)日：2017-07-18
申请号：US13821415
申请日：2011-08-26
申请人： Xinning Hu , Qiuliang Wang , Chunyan Cui , Hui Wang
发明人： Xinning Hu , Qiuliang Wang , Chunyan Cui , Hui Wang
IPC分类号： H02N15/00 , H02P9/00
CPC分类号： H02P9/006 , H02N15/00
摘要： A device and a method for inhibiting vibration of a superconducting magnetic suspension rotor. The device comprises a rotor cavity housing, lateral coils, a superconducting rotor with a rotor top plane, a copper plate, pole shoes, a z-axial vibration measuring sensor, an x-axial vibration measuring sensor, a y-axial vibration measuring sensor, and a copper ring, the pole shoes having a spherical inner surface and being arranged symmetrically up and down so as to form a rotor cavity; the annular lateral coils being closely adjacent to an outside cylindrical surface of the rotor cavity housing and fixed to the same; the z-axial vibration measuring sensor being fixed to a central region of the copper plate; the x-axial vibration measuring sensor being mounted along an x-coordinate axis and the y-axial vibration measuring sensor mounted on a on the copper ring which is mounted along an equatorial plane of the rotor.

6. 发明授权

US08934950B2 Superconducting magnet system for nuclear magnetic resonance with high magnetic field and high degree of homogeneity of magnetic field 有权
标题翻译：用于具有高磁场和高磁场均匀性的核磁共振的超导磁体系统
公开(公告)号：US08934950B2
公开(公告)日：2015-01-13
申请号：US13824798
申请日：2011-03-03
申请人： Qiuliang Wang , Yinming Dai , Baozhi Zhao , Xinning Hu , Luguang Yan , Housheng Wang , Shunzhong Chen
发明人： Qiuliang Wang , Yinming Dai , Baozhi Zhao , Xinning Hu , Luguang Yan , Housheng Wang , Shunzhong Chen
IPC分类号： G01R33/035 , G01R33/3815 , G01R33/38 , G01R33/3875 , G01R33/421
CPC分类号： G01R33/3815 , G01R33/3802 , G01R33/3875 , G01R33/421
摘要： A superconducting magnet system for nuclear magnetic resonance with a high magnetic field and a high degree of homogeneity of magnetic field is provided. The system comprises a main coil and a magnetic field homogeneity compensating coil having a combination of a forward current and a reverse current, and is composed of 24 superconducting coils formed by winding NbTi/Cu low-temperature superconducting wires. The system can produce a magnetic field of 9.4 T within a room-temperature space of 800 mm and can obtain a degree of non-homogeneity of magnetic field less than 0.1 ppm within a spherical volume of 300 mm. The system is equipped with a superconducting magnet inside, and a low-temperature vessel for liquid helium provides a low-temperature environment of 4K which is required for the normal operation of the superconducting magnet. A ferro-magnetic shielding system enables the system to have a good electromagnetic compatibility.
摘要翻译：提供了一种具有高磁场和高磁场均匀性的核磁共振的超导磁体系统。该系统包括具有正向电流和反向电流的组合的主线圈和磁场均匀性补偿线圈，并且由通过缠绕NbTi / Cu低温超导线形成的24个超导线圈组成。该系统可以在800mm的室温空间内产生9.4T的磁场，并且可以在300mm的球形体积内获得小于0.1ppm的非均匀性的磁场。该系统内装有超导磁体，液氦的低温容器提供4K超低温环境，这是超导磁体正常工作所需要的。铁磁屏蔽系统使系统具有良好的电磁兼容性。

7. 发明申请

US20140236528A1 MEASUREMENT METHOD FOR JUNCTION-TO-CASE THERMAL RESISTANCE 审中-公开
标题翻译：用于连接热电阻的测量方法
公开(公告)号：US20140236528A1
公开(公告)日：2014-08-21
申请号：US14055753
申请日：2013-10-16
申请人： INSTITUTE OF ELECTRICAL ENGINEERING, CHINESE ACADEMY OF SCIENCES
发明人： ZHIJIE QIU , JIN ZHANG , XUHUI WEN
IPC分类号： G01K7/00
CPC分类号： G01N25/18
摘要： A measurement method for a junction-to-case thermal resistance is provided. First, a first transient cooling curve of the chip for the semiconductor device under test (DUT) without grease is measured. Then a second transient cooling curve of the chip for the DUT with grease is measured. A difference ΔT of temperature variations of the two transient cooling curves with and without grease is calculated. The temperature of a constant temperature cold plate for fixing the semiconductor DUT is increased by ΔT, and a third transient cooling curve of the chip for the DUT with grease is measured again. The first transient cooling curve and the third transient cooling curve are used to calculate the junction-to-case thermal resistance.
摘要翻译：提供了一种结到壳热阻的测量方法。首先，测量不含润滑脂的被测半导体器件（DUT）的芯片的第一瞬态冷却曲线。然后测量用于具有润滑脂的DUT的芯片的第二瞬态冷却曲线。计算两种带有和不带润滑脂的瞬态冷却曲线的温度变化的差值Dgr。T。用于固定半导体DUT的恒温冷板的温度增加了＆Dgr; T，再次测量用于具有润滑脂的DUT的芯片的第三瞬态冷却曲线。第一瞬态冷却曲线和第三瞬态冷却曲线用于计算结到壳体的热阻。

8. 发明授权

US08694066B2 Superconducting magnet system for high power microwave source focusing and cyclotron electronic apparatus 有权
标题翻译：用于大功率微波源聚焦和回旋加速器电子设备的超导磁体系统
公开(公告)号：US08694066B2
公开(公告)日：2014-04-08
申请号：US13515220
申请日：2010-07-14
申请人： Qiuliang Wang , Xinning Hu , Luguang Yan , Yinming Dai , Hui Wang
发明人： Qiuliang Wang , Xinning Hu , Luguang Yan , Yinming Dai , Hui Wang
IPC分类号： H01F6/06
CPC分类号： H05H7/00 , H01F6/04 , H01F6/06 , H05H7/04 , H05H2007/082
摘要： A superconducting magnet system for high power microwave source focusing and cyclotron electronic apparatus is provided, wherein, the superconducting magnet comprises an inner superconducting main coil, an outer superconducting main coil, two end compensation coils, a regulating coil and a central regulating coil. These coils are formed by coiling Nb3Sn/Cu superconducting wire. The superconducting magnet can operate off-line through solid nitrogen formed by a cryocooler and high-pressure nitrogen. The superconducting magnet and the superconducting switch constitute a closed loop, thereby achieving magnetic field stability, without outside electromagnetic interference. The superconducting magnet system can provide a magnetic field having special spatial distribution and high stability.
摘要翻译：提供了一种用于大功率微波源聚焦和回旋加速器电子设备的超导磁体系统，其中超导磁体包括内部超导主线圈，外部超导主线圈，两端补偿线圈，调节线圈和中心调节线圈。这些线圈是通过卷绕Nb3Sn / Cu超导线形成的。超导磁体可以通过由低温冷却器和高压氮气形成的固体氮离线操作。超导磁体和超导开关构成闭环，从而实现磁场稳定，无外部电磁干扰。超导磁体可提供具有特殊空间分布和高稳定性的磁场。

9. 发明授权

US08204563B2 Superconducting magnet system for generating high homogeneity and high magnetic field 有权
标题翻译：用于产生高均匀性和高磁场的超导磁体系统
公开(公告)号：US08204563B2
公开(公告)日：2012-06-19
申请号：US12994562
申请日：2009-01-20
申请人： Qiuliang Wang , Xinning Hu
发明人： Qiuliang Wang , Xinning Hu
IPC分类号： H01B12/00 , H01F6/00 , H01L39/00 , H01L39/24
CPC分类号： H01F6/06 , G01R33/288 , G01R33/3815 , G01R33/3875 , G01R33/421 , H01F6/02
摘要： A superconducting magnet system for generating high homogeneity and high magnetic field consists of a main coil, an outer coil, a quench protection circuit, a quench heater and a power supply. The main coil is composed of many concentric solenoid coils which are arranged from inside to outside. The outer coil out of the main coil includes a first back roll coil, a second back roll coil, a first superconducting coil for compensating sixth harmonic component, a second superconducting coil for compensating sixth harmonic component, a shielding ring and a shielding coil from inside to outside. Every loop circuit of the quench protection circuit is composed of a corresponding protection resistor, a diode and coil which is connected in series each other, and each coil has a corresponding quench protection heater. The classification linear diameter difference of the superconducting coils which contact each other in main coil is less than 0.05 mm. The homogeneity of the magnetic field in the 50 mm diameter working space is 0.15 ppm, because the high order harmonic component of the field is compensated by back roll method.
摘要翻译：用于产生高均匀性和高磁场的超导磁体系统由主线圈，外线圈，淬火保护电路，淬火加热器和电源组成。主线圈由内向外排列的许多同心电磁线圈构成。主线圈外的外线圈包括第一后辊线圈，第二后滚线圈，用于补偿六次谐波分量的第一超导线圈，用于补偿六次谐波分量的第二超导线圈，屏蔽线圈和屏蔽线圈到外面猝熄保护电路的每个回路电路由相应的保护电阻，二极管和线圈组成，它们彼此串联连接，每个线圈都有相应的淬火保护加热器。在主线圈中彼此接触的超导线圈的分级线性直径差小于0.05mm。 50mm直径工作空间中的磁场的均匀度为0.15ppm，因为场的高阶谐波分量通过后辊方式补偿。

10. 发明申请

US20220365154A1 METHOD OF DESIGNING A HIGH SHIELDING GRADIENT COIL FOR A PLANAR SUPERCONDUCTING MAGNETIC RESONANCE IMAGING SYSTEM AND GRADIENT COIL THEREOF 有权
公开(公告)号：US20220365154A1
公开(公告)日：2022-11-17
申请号：US17628555
申请日：2020-11-26
申请人： INSTITUTE OF ELECTRICAL ENGINEERING, CHINESE ACADEMY OF SCIENCES
发明人： Yaohui Wang , Qiuliang Wang
IPC分类号： G01R33/421 , G01R33/3815 , G01R33/385
摘要： The present application provides a method of designing a high shielding gradient coil for a planar superconducting magnetic resonance imaging (MRI) system and a gradient coil thereof, the method determines a shielding area according to an outer profile of a metal conductor around the position of the gradient coil in the planar superconducting MRI system, and performs partitioned shielding of a stray field. The constraint values of stray fields at different partitioned zones of the shielding area are adjusted according to the shielding requirements. The primary coils of both the transverse gradient coil and the longitudinal gradient coil optimized by the design method of the high shielding gradient coil contain a reverse coil, which generates a magnetic field that offsets leakage magnetic field of other coils, thus achieving the purpose of reducing the stray field of the gradient coil.

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