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公开(公告)号：EP4424456A1
公开(公告)日：2024-09-04
申请号：EP22884862.8
申请日：2022-01-05
发明人： HAN, Xiaohui , XING, Yanshuang , LI, Shuaizhen , GUO, Qiangjun , FANG, Xifeng
IPC分类号： B23K37/00
摘要： An apparatus for regulating the welding deformation of a box-shaped structure, said apparatus comprising: a supporting part and a regulating part; a supporting surface that supports a box to be welded is formed on the supporting part; the regulating part is connected to the supporting part and at least abuts against a welding surface of said box; during the welding process, the regulating part regulates the flatness of said box by means of regulating the magnitude and/or force application position of a force acting on the welding surface of said box. In the regulation apparatus, multi-point flexible support is arranged on a bolster box-shaped structure, so as to achieve real-time dynamic regulation and step-by-step precision regulation, thereby improving the manufacturing precision of a bolster, and eliminating post-welding modification and repair of the bolster box-shaped structure. Also disclosed is a method for regulating the welding deformation of a box-shaped structure.
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公开(公告)号：EP4365054A1
公开(公告)日：2024-05-08
申请号：EP22831123.9
申请日：2022-01-05
发明人： WANG, Yanqing , SUN, Weiguang , ZHANG, Zeyun , YU, Yangyang , TIAN, Honglei
IPC分类号： B61F1/14
CPC分类号： Y02T30/00
摘要： A chassis edge beam, a chassis structure and a rail vehicle. The chassis edge beam is an aluminum alloy profile structure that is integrally extruded and formed, and comprises a first-layer cavity, a second-layer cavity, a third-layer cavity and a fourth-layer cavity, which are sequentially stacked from top to bottom, wherein the top of the first-layer cavity is provided with a profile insertion structure, which is configured to be inserted in and welded to a side wall of a vehicle body; a profile lap-joint structure with an opening facing an inner side of the vehicle body is formed at an upper edge of an inner side face of the second-layer cavity; and the third-layer cavity has two square-shaped cavities arranged side by side, and a transverse wall of the bottom of each square-shaped cavity is thickened, so as to be used to form a planar structure for mounting an under-vehicle apparatus, an anti-yaw damper and an under-vehicle apparatus compartment, and for connecting a bogie to the vehicle body. The chassis edge beam can meet limiting requirements of different vehicle limits at home and abroad for the outer contour of a vehicle body structure, and can be flexibly fit with vehicle body structures having different vehicle widths.
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3.发明公开
公开(公告)号：EP4290729A1
公开(公告)日：2023-12-13
申请号：EP22748803.8
申请日：2022-01-07
发明人： LIU, Ming , LIANG, Jianying , LI, Yankun , XIAO, Chanjuan , TIAN, Qing , ZHOU, Zhuomin
IPC分类号： H02J7/00
摘要： The present disclosure provides a battery charging control method and system, a vehicle, a readable storage medium, and a device. According to the present disclosure, the method comprises: in the charging process, determining an adaptive allowable charging current value according to an acquired current state of a battery; calculating the difference between a bus voltage and a battery voltage according to the difference between the allowable charging current value and a current value obtained by real-time sampling; and controlling the bus voltage according to the difference between the bus voltage and the battery voltage, so as to realize timely-adjusted charging control. The purpose of controlling the charging current is achieved by continuously adjusting a charging voltage; it is guaranteed that the charging current of each cluster of batteries does not exceed the charging current limit; on one hand, the control precision of the charging process is improved, and on the other hand, the charging safety is also improved.
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4.发明公开
公开(公告)号：EP4279318A1
公开(公告)日：2023-11-22
申请号：EP22738906.1
申请日：2022-01-05
发明人： YU, Yaxin , YU, Xiaojie , CUI, Wencheng , GUO, Chao , WANG, Yunfei
摘要： A rail train pantograph control method and apparatus, a storage medium and a computer device. Said method comprises: determining state data of two pantographs on a rail train; according to the state data of the two pantographs, determining a pantograph selected for the rail train. The technical problems in the related art that manual selection of a pantograph affects the service life of the pantograph and causes great difficulty in maintenance are solved.
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公开(公告)号：EP4190666A1
公开(公告)日：2023-06-07
申请号：EP21849749.3
申请日：2021-02-10
发明人： ZHANG, Zhenxian , WEI, Jiaqi , WANG, Xu , JIAO, Jinghai , HU, Haitao
摘要： A gauge-changeable wheel set, comprising an axle (10). A central through hole (15) is formed in the axial direction of the axle (10); an outer spline (11) extending along the axial direction of the axle (10) is constructed in the periphery of the axle (10) close to a middle portion; first non-self-locking threads (14) having opposite rotation directions are respectively arranged on the portions, located at the two sides of the axial direction of the outer spline (11), of the periphery of the axle (10); an oblong hole (12) penetrating in the radial direction of the axle is formed in the portion, located on the outer spline (11), of the axle (10); the length direction of the oblong hole (12) is the axial direction of the axle (10); and at least one first raceway (13) provided around the axle (10) in a circumferential direction is constructed on the portion of the axle (10) between one of the first non-self-locking threads (14) and the outer spline (11). The axle (10) is ingenious in structure design, so that a connection structure of the axle (10) and a wheel is simple, and the gauge-changeable reliability is high. Further disclosed is an axle for use in a gauge-changeable wheel set.
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公开(公告)号：EP4132833A1
公开(公告)日：2023-02-15
申请号：EP21716655.2
申请日：2021-03-29
申请人： CRRC Qingdao Sifang Co., Ltd. , CG Rail - Chinesisch-Deutsches Forschungs - Und Entwicklungszentrum Für Bahn - Und Verkehrstechnik Dresden GmbH
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公开(公告)号：EP4086133A1
公开(公告)日：2022-11-09
申请号：EP20910692.1
申请日：2020-05-18
发明人： DING, Sansan , WU, Peipei , TIAN, Aiqin , LIANG, Haiting , ZHAO, Hongwei
摘要： An assembly-type car body (11) and a rail vehicle. A roof (1), an underframe (2), side roofs (3) and side walls (4) of the assembly-type car body (11) are separately formed by assembling double-layer pultruded profiles, and each double-layer pultruded profile comprises an outer plate, an inner plate and cavities formed by separating an interlayer between the outer plate and the inner plate using ribs; the upper edge and the lower edge of each side roof (3) are respectively connected to an edge of the roof (1) and the upper edge of a side wall (4) by means of lapping joints, and the lower edge of each side wall (4) is connected to an edge of the underframe (2) by means of a side wall connector (5); each side wall connector (5) is a double-layer pultruded profile unit, the upper edge of the side wall connector (5) is connected to the lower edge of the side wall (4) by a plug joint, and the lower edge of the side wall connector (5) is connected to an edge of the underframe (2) by means of a push-to-connect joint (5-1).
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公开(公告)号：EP3978329A1
公开(公告)日：2022-04-06
申请号：EP20813066.6
申请日：2020-05-18
发明人： SONG, Shuliang , CHANG, Zhen , ZHANG, Yuejun , ZHOU, Jinming , LI, Tianyi
摘要： Disclosed is a gearbox for rail vehicle, a bogie for rail vehicle and a rail vehicle. The gearbox for rail vehicle includes a primary gearbox (1) configured to connect with a traction motor, and a secondary gearbox (2) arranged on both sides of the primary gearbox (1) along a longitudinal direction of the rail vehicle, wherein a framework bearing beam is formed by connecting the primary gearbox (1) and the secondary gearbox (2), the primary gearbox (1) is configured to transmit power from the traction motor to the secondary gearbox (2), and the secondary gearbox (2) are configured to transmit power from the primary gearbox (1) to wheelsets of the rail vehicle.
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公开(公告)号：EP3709417A9
公开(公告)日：2022-03-16
申请号：EP18874021.1
申请日：2018-11-05
发明人： WAN, Nianfang , DING, Sansan , ZHANG, Wenchao , LI, Kelei , LI, Yankun
IPC分类号： H01M8/1004 , H01M4/86 , H01M4/88 , H01M4/92 , H01M8/0234 , H01M8/0245
摘要： The present invention provides a membrane electrode assembly of a fuel cell, comprising a gas diffusion layer, a microporous layer, a catalytic layer, and an electrolyte membrane that are sequentially stacked. In the direction of an air flow path, the thickness of the microporous layer decreases progressively, the thickness of the catalytic layer increases progressively, and the total thickness of the microporous layer and the catalytic layer keeps consistent. The present application also provides a preparation method for the membrane electrode assembly of a fuel cell. The membrane electrode assembly of a fuel cell provided in the present application can balance water content of a gas inlet area and a gas outlet area of the fuel cell, and finally improves the stability of the fuel cell at different temperatures and humidity levels, thereby implementing functions such as improving the durability and decreasing a catalyst load.
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10.发明公开
公开(公告)号：EP3936405A1
公开(公告)日：2022-01-12
申请号：EP20825701.4
申请日：2020-05-18
发明人： MA, Lijun , ZHOU, Pingyu , WANG, Xu , QIAO, Qingfeng , LI, Hengkui , WANG, Yutao , SONG, Xiaowen
摘要： A locking mechanism (3) of a gauge-changing wheelset, a gauge-changing wheelset and a gauge-changing bogie. The locking mechanism includes: a traction electromagnet (32) and a locking pin (33), the traction electromagnet (32) includes a traction coil (32-1) and a movable core (32-2) being controlled to move by turning on and off the traction coil (32-1), the locking pin (33) is fixedly connected to an end of the movable core (32-2) away from the traction coil (32-1), a plurality of locking holes (41) are disposed on an inner hub of each of wheels (4) at intervals in an axial direction, and the movable core (32-2) may drive the locking pin (33) to insert into or remove from the locking holes (41) to lock or unlock the wheels (4). The gauge-changing wheelset includes wheels (4) and an axle (5) splined to the wheels, a locking mechanism (3) and lateral drive mechanisms (1), both ends of the axle (5) located outside the wheels (4) are respectively supported in an axle box body (7); the locking mechanism (1) is respectively disposed on the inner side of each of the wheels (4), the lateral drive mechanisms (1) are respectively disposed on the outer side of each of the wheels (4), and is fixed on the axle box body (7), the lateral drive mechanism (1) includes an electric cylinder (11) having an extension end for pushing or pulling unlocked wheels to change the gauge of wheels.
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