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Patent Agency Ranking
公开(公告)号：US20190106150A1
公开(公告)日：2019-04-11
申请号：US16086507
申请日：2017-04-11
Applicant: Qunzhan Li , Southwest Jiaotong University
Inventor： Qunzhan Li
Abstract: A trackless train comprising a locomotive and carriages of N trailers is disclosed. The locomotive comprising an axle for a pair of steering drive wheels, controlled by a driver through a bogie, which comprises an angle sensor connected to an input end of a steering angle meter. The kth carriage comprises a steering wheel having a steering mechanism, controlling the steering angle of the steering wheel. The controller comprising an input end connected to an output end of a clock, an odometer and the steering angle meter, and an output end connected to an input end of the steering mechanism of the trailers via an optical network. The controller records time (from clock), mileage (from odometer) and steering angle of the steering drive wheels (steering angle meter), and describes/controls a travelling track of the train, such that the steering wheels of the carriages and the locomotive maintain the same track.
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公开(公告)号：US12109914B2
公开(公告)日：2024-10-08
申请号：US17422134
申请日：2019-06-27
Applicant: SOUTHWEST JIAOTONG UNIVERSITY
Inventor： Qunzhan Li , Kai Guo , Shaofeng Xie , Zihan Li , Xiaohong Huang , Yuhua Guo , Shuqian Li , Bo Wu
CPC classification number: B60M1/30 , B60L5/36 , B60L5/39 , B60L2200/26
Abstract: The present invention relates to the technical field of train power supply and operation control, and provides a three-rail power supply control system for an electrical railway train. Power supply rails in the system are divided into a first power supply rail, a second power supply rail, and a third power supply rail, wherein the first power supply rail, the second power supply rail, and a running rail constitute a three-phase AC power supply loop, and the third power supply rail and the running rail constitute a DC power supply loop. An AC-DC-AC variable voltage variable frequency device supplies power to a train traction motor by means of the three-phase AC power supply loop and current collectors. Frequency modulation and voltage regulation power supply is conducted by means of the AC-DC-AC variable voltage variable frequency device on the ground to achieve train driving and operation control. The DC power supply loop is powered by means of a rectifying device on the ground, and power is supplied to auxiliary electric equipment of the train by means of the current collectors. By changing the power supply mode of the system and optimizing the system structure, the weight and axle load of train-mounted equipment are effectively reduced, lightweight of the train is achieved, and the bearing efficiency of the train is improved, and moreover, automatic control and unmanned driving for train operation are achieved in the most economical way.
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公开(公告)号：US11897345B2
公开(公告)日：2024-02-13
申请号：US17255777
申请日：2019-06-21
Applicant: SOUTHWEST JIAOTONG UNIVERSITY
Inventor： Qunzhan Li , Jiqin Wu
Abstract: The present invention provides a three-phase power supply and collection device for a maglev train. A cross beam is arranged at the middle part of the bogie of the maglev train, and the lower surface of the cross beam is provided with three sets of longitudinal bearing seats, and three insulating bushes, three collector shoes and three power supply rails corresponding to the longitudinal bearing seats; the two ends of the horizontal part of each insulating bush is a rotating shaft structure, and the vertical part of the insulating bush is a hollow tubular structure; the upper part of each collector shoe is the shoe handle, the lower part is the shoe body, and the bottom of the shoe body is in a concave semicircular shape; the top surface of each power supply rail is in a convex semicircular shape.
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公开(公告)号：US11110959B2
公开(公告)日：2021-09-07
申请号：US16086507
申请日：2017-04-11
Applicant: Southwest Jiaotong University , Qunzhan Li
Inventor： Qunzhan Li
Abstract: A trackless train is formed of a locomotive hinged to carriages of N trailers. A controller is provided at the locomotive, wherein an input end of the controller is connected to an output end of a clock, an odometer and the steering angle meter, and an output end of the controller is connected to an input end of the steering mechanism of each one of the trailers via an optical network. The controller can fully describe and control a travelling track of the trackless train, such that the steered wheels of the trailer carriages and the steering drive wheels of the locomotives maintain the same track during travel.
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公开(公告)号：US11065983B2
公开(公告)日：2021-07-20
申请号：US16088572
申请日：2017-04-06
Applicant: Southwest Jiaotong University , Qunzhan Li
Inventor： Qunzhan Li
Abstract: A railway transportation power supply construction comprising a power supply rail and a return current rail respectively secured on two sides of an insulating base and isolated by the insulating base. A power supply arm and a return current arm are mounted to a bogie of a vehicle and insulated from the vehicle body by means of insulation rings, the bogie provided with a drive mechanism. The power supply arm has a front end connected to one end of an input port of the drive mechanism, and a terminal end in contact with the power supply rail. The return current arm has a front end connected to the other end of the input port of the drive mechanism, and a terminal end in contact with the return current rail. During operation, the power supply arm has friction with the power supply rail to be powered, and the return current arm has friction with the return current rail, enabling the vehicle to travel through a junction section with uninterrupted power supply while the structure and operating condition of a junction remain unchanged.
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