Electromagnetic transverse active damping system, and control method and apparatus therefor

Patent metadata

Field	Value
Publication number	US-10960901-B2
Application number	US-201916958722-A
Country	US
Kind code	B2
Filing date	Mar 6, 2019
Priority date	Aug 1, 2018
Publication date	Mar 30, 2021
Grant date	Mar 30, 2021

Abstract

Disclosed are an electromagnetic transverse active damping system, and a control method and apparatus therefor. The electromagnetic transverse active damping system comprises an electromagnet controller, wherein the electromagnet controller can determine a value of a damper target gap for an electromagnet active damper according to acquired train transverse acceleration, train position information and train speed, and control the action of the electromagnet active damper according to the determined value of the damper target gap; and electrical control is employed during the control of the electromagnet active damper by the electromagnet controller.

First claim

The invention claimed is:

1. An electromagnetic lateral initiative vibration damping system, comprising:
an electromagnet controller;
a lateral acceleration sensor;
an electromagnet initiative vibration damper; and
a computing device, wherein
the electromagnet controller is connected to the lateral acceleration sensor, the electromagnet initiative vibration damper and the computing device;
the lateral acceleration sensor is configured to acquire train lateral acceleration of a magnetic levitation train and transmit the acquired train lateral acceleration to the electromagnet controller;
the computing device is configured to acquire train position information and a train speed of the magnetic levitation train, and transmit the acquired train position information and train speed to the electromagnet controller;
the electromagnet controller is configured to determine a vibration damper target gap value of the electromagnet initiative vibration damper based on the acquired train lateral acceleration, the train position information and the train speed, and control, based on the determined vibration damper target gap value, the electromagnet initiative vibration damper to operate; and
the electromagnet initiative vibration damper is configured to move from a default position to a position specified by the vibration damper target gap value under control of the electromagnet controller,
the electromagnetic lateral initiative vibration damping system further comprising:
a gap sensor connected to the electromagnet controller and the electromagnet initiative vibration damper, wherein
the gap sensor is configured to acquire a gap value during operation of the electromagnet initiative vibration damper, and transmit the acquired gap value to the electromagnet controller; and
the electromagnet controller is further configured to receive the gap value transmitted by the gap sensor; and determine that the electromagnet initiative vibration damper moves to the position specified by the vibration damper target gap value in a case that the gap value is equal to the vibration damper target gap value, to complete control on the electromagnet initiative vibration damper.

2. The electromagnetic lateral initiative vibration damping system according to claim 1 , wherein the electromagnet controller being configured to determine a vibration damper target gap value of the electromagnet initiative vibration damper based on the acquired train lateral acceleration, the train position information and the train speed, and control, based on the determined vibration damper target gap value, the electromagnet initiative vibration damper to operate comprises the electromagnet controller being configured to:
in a case that there is a vibration damping point that the magnetic levitation train has not passed on a traveling route of the magnetic levitation train, acquire vibration damping point position information of the vibration damping point that the magnetic levitation train has not passed;
calculate a distance between the magnetic levitation train and the vibration damping point that the magnetic levitation train has not passed based on the train position information and the vibration damping point position information, and determine a vibration damping point closest to the magnetic levitation train based on the calculated distance;
determine a passing time instant when the magnetic levitation train passes the vibration damping point closest to the magnetic levitation train based on the train speed and the distance between the magnetic levitation train and the vibration damping point closest to the magnetic levitation train;
predict lateral acceleration at which the magnetic levitation train passes the vibration damping point closest to the magnetic levitation train based on the train lateral acceleration and the passing time instant when the magnetic levitation train passes the vibration damping point closest to the magnetic levitation train;
calculate a difference between the predicted lateral acceleration and the train lateral acceleration in a case that the predicted lateral acceleration is not equal to the train lateral acceleration, and determine the calculated difference as vibration damper vibration offset inertia when the magnetic levitation train passes the vibration damping point closest to the magnetic levitation train; and
determine the vibration damper target gap value of the electromagnet initiative vibration damper based on the calculated vibration damper vibration offset inertia, and control, based on the vibration damper target gap value, the electromagnet initiative vibration damper to operate.

3. The electromagnetic lateral initiative vibration damping system according to claim 2 , wherein the electromagnet controller being configured to predict lateral acceleration at which the magnetic levitation train passes the vibration damping point closest to the magnetic levitation train based on the train lateral acceleration and the passing time instant when the magnetic levitation train passes the vibration damping point closest to the magnetic levitation train comprises the electromagnet controller being configured to:
input the train lateral acceleration and the passing time instant into a neural network; and
predict the lateral acceleration at which the magnetic levitation train passes the vibration damping point closest to the magnetic levitation train through the neural network.

4. The electromagnetic lateral initiative vibration damping system according to claim 2 , wherein the electromagnet controller being configured to determine the vibration damper target gap value of the electromagnet initiative vibration damper based on the calculated vibration damper vibration offset inertia, and control, based on the vibration damper target gap value, the electromagnet initiative vibration damper to operate comprises the electromagnet controller being configured to:
determine a vibration damper gap and a vibration damper operation duration that are corresponding to the vibration damper vibration offset inertia based on a correspondence among the vibration offset inertia, the vibration damper gap and the vibration damper operation duration;
determine the vibration damper gap corresponding to the vibration damper vibration offset inertia as the vibration damper target gap value of the electromagnet initiative vibration damper;
determine a time instant at which the electromagnet initiative vibration damper operates based on the vibration damper operation duration and the passing time instant when the magnetic levitation train passes the vibration damping point closest to the magnetic levitation train; and
control, based on the vibration damper target gap value, the electromagnet initiative vibration damper to operate, when the time instant at which the electromagnet initiative vibration damper operates comes.

5. The electromagnetic lateral initiative vibration damping system according to claim 1 , further comprising:
a battery connected to the electromagnet initiative vibration damper, wherein
the electromagnet initiative vibration damper is further configured to, when moving to the position specified by the vibration damper target gap value, automatically return from the position specified by the vibration damper target gap value to the default position and generate electrical energy, and transfer the generated electrical energy to the battery; and
the battery is configured to store the electrical energy transferred by the electromagnet initiative vibration damper.

6. A method for controlling an electromagnetic lateral initiative vibration damping system, comprising:
acquiring train lateral acceleration, train position information and train speed; and
determining a vibration damper target gap va

Assignees

• Crrc Qingdao Sifang Co Ltd

Inventors

• Liang Jianying
• Wu Donghua
• Xiao Shi
• Jiang Fujie
• Li Yanmin

Classifications

• Y02T90/16

  Information or communication technologies improving the operation of electric vehicles · CPC title

• Y02T10/72

  Electric energy management in electromobility · CPC title

• B61L15/0072

  On-board train data handling · CPC title

• B61F5/245 Primary

  by active damping, i.e. with means to vary the damping characteristics in accordance with track or vehicle induced reactions, especially in high speed mode · CPC title

• B60L2240/622

  by satellite navigation · CPC title