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公开(公告)号：US20240246521A1
公开(公告)日：2024-07-25
申请号：US18559839
申请日：2022-09-06
发明人： Rui SHI , Yifan LIANG , Meng SHI , Xiaowei CHEN , Shenyue HUANG , Nan WANG
CPC分类号： B60T13/741 , B60T13/665 , B60T17/228 , B60T2270/402
摘要： A parking brake control method for an electromechanical brake system of an urban rail vehicle includes an operation instruction mechanism, a brake control mechanism, an electromechanical actuating mechanism and an auxiliary mechanism. The operation instruction mechanism outputs a control signal to the brake control mechanism to drive the action of the electromechanical actuating mechanism so as to achieve braking application and relief of the vehicle. The auxiliary mechanism is used for a redundant power supply system of a brake system. The auxiliary mechanism further includes a zero-speed state monitoring mechanism for monitoring a zero-speed state of the vehicle and an energy storage battery mechanism for providing a backup power supply. The parking brake control method enables an urban rail vehicle using an electromechanical brake system to achieve brake application and relief in a parked state and achieve brake application and relief in a dormant state of the urban rail vehicle.
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公开(公告)号：US11964679B2
公开(公告)日：2024-04-23
申请号：US17044235
申请日：2019-09-30
发明人： Juxing Liang , Xingwen Wang , Yunchuan Li , Yongjun Li , Wenjie Huang , Changping Zhu
IPC分类号： B61F1/10
CPC分类号： B61F1/10
摘要： An underframe end structure without a bolster beam for a rail vehicle, including an underframe end beam, an underframe edge beam, a coupler mounting base, coupler support beams, and oblique support beams, where the front of the coupler mounting base is connected to the underframe end beam through the oblique support beams, two sides of the coupler mounting base are connected to the underframe edge beam through the coupler support beams, so that quadrilateral frame structures are respectively formed on the two sides of the coupler mounting base, the oblique support beams form an included angle of 55° to 80° with a forward opening, and the coupler support beams form an included angle of 120° to 140° with a backward opening.
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公开(公告)号：US11807133B2
公开(公告)日：2023-11-07
申请号：US17436659
申请日：2020-11-11
发明人： Li Yang , Caixia Shi , Wei Xie , Lian Ge , Hemin Ding , Jianglong Chang
摘要： A bus breaker control circuit for a railway vehicle includes a close relay, an open relay, a power supply circuit for a bus breaker, a power supply circuit for the hold relay, and a delay module; the power supply circuit for the hold relay comprises a normally-closed contact of the open relay, an auxiliary normally-open contact of the bus breaker, and the hold relay sequentially connected in series to a train power supply; the power supply circuit for the bus breaker comprises a normally-open contact of the hold relay and the bus breaker sequentially connected in series to the train power supply; and the delay module is connected in parallel with the hold relay, normally-closed contacts of the delay module are connected in series to the power supply circuit for the close relay.
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公开(公告)号：US11770077B2
公开(公告)日：2023-09-26
申请号：US17436660
申请日：2020-11-11
发明人： Caixia Shi , Li Yang , Hemin Ding , Xiaofang Shi , Yuhu Jiang , Lian Ge , Qiaofeng Jiang
摘要： A dual start control circuit for auxiliary inverters of a railway vehicle is provided. An external dual circuit is designed for controlling a start and stop of the auxiliary inverters; and an APS START signal is added to start conditions of the auxiliary inverters. When a start-stop switch is turned to an “on” position, an APS start train line is electrified, APS start relays in cabs at both ends are electrified and corresponding normally-open contacts of the APS start relays are closed, a self-locking circuit is kept electrified, the APS start train line is kept electrified, and a start signal is transmitted to the auxiliary inverters through a hard wire; and when the start-stop switch is turned to an “off” position, an APS stop train line is electrified, APS stop relays in the cabs at both ends are electrified and corresponding normally-closed contacts of the APS stop relays are disconnected.
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公开(公告)号：US11738784B2
公开(公告)日：2023-08-29
申请号：US17047395
申请日：2019-12-05
发明人： Jian Sun , Qian Zhang , Xun Mao , Dejian Song , Fei Xiao , Hongquan Xue , Hongfei Zhang , Kai Yu
CPC分类号： B61H13/00 , B60T13/748 , B61H7/08 , H01F7/064
摘要： A logic control system for magnetic track braking of a rail transit vehicle includes a magnetic track braking control circuit, a magnetic track braking power supply execution circuit, and a magnetic track braking status monitoring and feedback circuit. The magnetic track braking control circuit includes a pneumatic actuator relay, an electromagnet relay, a system protection relay, a power-on delay relay, a power-off delay relay, an automatic control branch circuit, and a manual control branch circuit. The pneumatic actuator relay is connected to the power-on delay relay, and the system protection relay is connected to the power-off delay relay. The automatic control branch circuit includes a first isolation magnetic track braking switch and an emergency braking relay contact. The manual control branch circuit includes a first circuit breaker, a cab signal option switch, a second isolation magnetic track braking switch and a manual touch button.
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公开(公告)号：US20230126718A1
公开(公告)日：2023-04-27
申请号：US17047398
申请日：2019-12-05
发明人： Pengcheng DAI , Xun MAO , Juan XUE , Haixia HUANG
摘要： An emergency braking control circuit based on coupler coupling detection includes a coupler status detection circuit and a coupler status relay that are connected in series with a train power loop. A normally open contact of the coupler status relay is connected to an emergency braking train line in a cross-parallel manner. When a coupler is coupled normally, inductive proximity sensors located at a knuckle and a central pivot are closed to drive the coupler status relay, and the normally open contact of the coupler status relay is connected in a cross-parallel manner to ensure that a corresponding node of the emergency braking loop is closed. In case of abnormal coupling or accidental uncoupling of couplers, the inductive proximity sensors of the couplers of two adjacent cars are disconnected simultaneously, the coupler status relays of the two cars are powered off, and emergency braking is applied.
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公开(公告)号：US20220348237A1
公开(公告)日：2022-11-03
申请号：US17436084
申请日：2020-11-11
发明人： Rui SHI , Zhi CHEN , Fan YANG , Xingwen WANG , Juxing LIANG , Le WANG
摘要： An intermediate car electric coupler control circuit for a subway vehicle includes a coupling state relay, a power supply circuit for a decoupling electromagnetic valve, a first power supply circuit for an electric coupler control relay, a second power supply circuit for an air path and electric coupler module control electromagnetic valve, and a third power supply circuit for a bus control contactor. A coupler coupling operation is performed exactly according to a sequence of a mechanical coupling, an air path conduction, an electric coupler extension, and a medium- and low-voltage bus closing, wherein contacts of electric couplers are prevented from being damaged. A coupler decoupling operation is performed exactly according to a sequence of a contact heavy-current removal, an electric coupler withdrawal, an air path disconnection and a mechanical decoupling, wherein the contacts are prevented from being damaged by a heavy current arcing and a discharge.
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公开(公告)号：US20220315067A1
公开(公告)日：2022-10-06
申请号：US17598905
申请日：2020-11-11
发明人： Yanpin DU , Liang ZHU , Yanlin JIANG , Xiaoyu WANG , Yonggang NIU , Qunfa SHAN , Sheng ZHANG
IPC分类号： B61F1/08
摘要： An underframe boundary beam connecting structure suitable for a railway vehicle with a drum-shaped vehicle body is provided. An underframe boundary beam is a through long roll bending piece, a section of the through long roll bending piece is of a channel structure, and has a side face, an upper wing face, and a lower wing face. The side face has an inclination angle consistent with a side wall plate, an upper end of an outer side of the side face is provided with a concave platen, and the side wall plate is lapped on the concave platen and fixed by a butt welding; an inner end of the lower wing face is provided with a downwards vertical flanging, a vertical plate is welded and fixed between the upper wing face and the lower wing face.
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公开(公告)号：US10913358B2
公开(公告)日：2021-02-09
申请号：US16482270
申请日：2018-09-27
发明人： Qiaofeng Jiang , Xiaofang Shi , Xianing Pan , Li Yang , Lian Ge , Aiping Zhang , Jianglong Chang
摘要： A pantograph remote control circuit for an unmanned metro train includes a startup circuit of an auxiliary inverter emergency start relay, a control circuit of an auxiliary inverter energized relay, and a startup circuit of a pantograph raising relay. A first normally-open contact pair of the pantograph raising relay is serially connected to a pantograph raising electromagnetic valve and then connected to an output terminal of a battery. At the meantime, the bootstrap is remotely controlled by the internal ATC wake-up module when the power supply is fed by the battery, and there is no need for the driver to operate on the spot, thereby saving time for the driver from operations and reducing the potential misoperation of the driver.
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公开(公告)号：US20230331211A1
公开(公告)日：2023-10-19
申请号：US17047388
申请日：2019-12-05
发明人： Chaofeng DING , Fengli ZHANG , Rujun LIANG , Chunmeng WANG , Xiaofang SHI , Aiping ZHANG , Lian GE , Hemin DING
IPC分类号： B60T17/22
CPC分类号： B60T17/228 , B60T17/221
摘要： An emergency braking extension device includes an emergency braking extension loop, a first emergency braking extension train line and a second emergency braking extension train line. The emergency braking extension loop has a protective circuit breaker, a normally open contact of an emergency braking button, and an emergency braking extension relay, which are sequentially connected in series. A normally open contact of the emergency braking extension relay is connected in series to a pantograph lowering control loop. A first normally closed contact and a second normally closed contact of the emergency braking extension relay are connected in series to a return line and a power supply negative loop of a train emergency braking control loop, respectively. A third normally closed contact of the emergency braking extension relay is connected in series to a control loop of a bypass cut-off circuit of a train emergency braking execution loop.
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