Crrc Qingdao Sifang Co., Ltd.

Cg Rail—chinesisch-Deutsches Forschungs—und Entwicklungszentrum Für Bahn—und Verkehrstechnik Dresden Gmbh

Southwest Jiaotong University

Pingyu Zhou

Zhenxian Zhang

Xiaoming Wang

Lijun Ma

Xu Wang

Hongyong Cao

Haipeng Kong

Xiaojun Lv

Xiaowen Song

Peidong Wang

Daqiang Wang

Werner Hufenbach

Sansan Ding

Andreas Ulbricht

Yuwen Liu

Yuejun Zhang

Guidong Tao

Xiaojiang Zhou

Jinming Zhou

Xiaolong Zou

Jiaqi Wei

Xiaoning Cao

Yihui Guan

Tianyi Li

Hengkui Li

Houli Sun

Xiongfei Zhang

Yunjie Fan

Huijie Zhang

Yingming Li

Guoping Zhang

Zhiguo Cui

Xiaoyan Li

Rongsheng Kuai

Yonghua Feng

Shi Wang

Qingfeng Qiao

Yeming Zhou

Yutao Wang

Yuan Xue

Xiaolei Zang

A semi-active anti-yaw damper (), a damping system and a vehicle are provided. When a piston () of the semi-active anti-yaw damper () reciprocates in the hydraulic cylinder (), an interior of the hydraulic cylinder () is divided into two cylinder blocks (PA, PB). The semi-active anti-yaw damper () includes at least two parallel branches (B, B), the two ends of each of the parallel branches (B, B) are connected to the two cylinder blocks (PA, PB), respectively, and each of the parallel branches (B, B) is provided with an adjustable solenoid valve (PV), and the adjustable solenoid valve (PV) is configured to adjust a damping coefficient of the semi-active anti-yaw damper () when the semi-active anti-yaw damper () is in a semi-active mode.

Semi-active anti-yaw damper, damping system and vehicle

Provided is a method for controlling an anti-yaw damper, including: obtaining lateral acceleration signals of a frame and performing a first preprocessing on the lateral acceleration signals; obtaining a pressure difference between two chambers of an anti-yaw damper piston and performing a second preprocessing of the pressure difference; obtaining an MPPT algorithm objective function value at the current moment and an MPPT algorithm objective function value at the previous moment according to first preprocessing results and second preprocessing results, and comparing the MPPT algorithm objective function value at the current moment with the MPPT algorithm objective function value at the previous moment; and controlling the adjustment direction of an electromagnetic proportional valve of the anti-yaw damper according to the comparison result. According to the method, the damping force of the anti-yaw damper can be adjusted in real time, therefore the adaptability of the damper in different wheel wear conditions and the kinetic stability of a motor train unit are improved. Also provided is an apparatus for controlling an anti-yaw damper.

Method and apparatus for controlling anti-yaw damper

The invention relates to bogies for railway vehicles with at least two wheelsets mounted in axleboxes and at least one transverse member. The bogies are in particular characterized in that they have a lightweight design and can be produced at low cost. The axleboxes of a wheelset are articulated to the transverse member via two axle levers so that the axle levers form an H shape with the axleboxes and the transverse member. The transverse member has at least two torsion bars arranged in parallel to the axles of the wheelsets, said torsion bars being firmly connected to the transverse member. The torsion bars have spring levers so that the end portion of the spring lever not connected to the torsion bar acts upon the axlebox.

Bogie of a rail vehicle with at least two wheelsets mounted in axleboxes and at least one transverse member

A high-speed rail train bogie frame includes side sills and cross beams located between the side sills, and each of the side sills is provided with an air spring seat configured to install an air spring; wherein each of the cross beams has a seamless steel tube structure; the frame further includes a passage, and a main air chamber of the air spring and a cavity of the cross beam are in communication with each other through the passage; and an anti-roll bar seat configured to install an anti-roll bar is welded below the side sill, and the anti-roll bar seat is in a circular arc transition with a bottom of the side sill, to form a dovetail structure.

High-speed rail train bogie and frame thereof

A railway vehicle and an axle box structure thereof are provided. The axle box structure includes an axle box body and a positioning node mounting seat. The axle box body includes an upper box body and a lower box body. The upper box body and the lower box body enclose a bearing mounting chamber together. A lower end surface of the upper box body has a convex portion, and an upper end surface of the lower box body has a concave portion. A first semi-circular hole and a second semi-circular hole are respectively provided at the middle of the upper box body and the lower box body. If the convex portion and the concave portion are assembled in a sealed coupling manner, the bearing mounting chamber is formed by the first semi-circular hole and the second semi-circular hole.

Railway vehicle and axle box structure thereof

A bogie for a high-speed railway vehicle includes a wheel set, an axle box, a primary spring suspension device, a frame, a secondary spring suspension device and a foundation braking device. A wheel of the wheel set has an LMA wheel tread. The foundation braking device is mounted by a three-point hitch structure. The axle box is a structure which is separatable in a vertical direction, and an off-line safety protecting device is mounted at a lower portion of the axle box. A traction rod of the secondary spring suspension device is a single traction rod. A center pin is provided with an integral hoisting device. Two anti-yaw dampers, as a group, are arranged at either side of the secondary spring suspension device, and the two anti-yaw dampers have the same damping coefficient.

Bogie for high-speed railway vehicle

A railway vehicle and an axle box structure thereof are provided. The axle box structure includes an axle box body and a positioning joint mounting seat, and a bearing mounting cavity is provided inside the axle box body. The positioning joint mounting seat is provided with a mounting cavity configured to mount a positioning joint, a longitudinal center line of the axle box body is in parallel with a longitudinal center plane of the positioning joint mounting seat, and the longitudinal center plane of the positioning joint mounting seat is outwardly deviated with respect to a longitudinal center plane of the axle box body. In this way, a large space can be left for mounting the brake clamp, and the mounting and replacing of the brake clamp and the wheel set can be facilitated.

Growing community of inventors

Shandong, China

Pingyu Zhou