Valve control type semi-active oscillating damper

A semi-active shock absorber, valve-controlled technology, applied in the direction of shock absorber, liquid shock absorber, shock absorber, etc., can solve the problems of long switching response time, complex structure and control method, etc., to improve ride comfort High performance, simple structure, simple and reliable control

Active Publication Date: 2012-07-04
ZHUZHOU CSR TIMES ELECTRIC CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention solves the technical problems of the semi-active state and the passive state switching to mechanical

Method used

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  • Valve control type semi-active oscillating damper
  • Valve control type semi-active oscillating damper
  • Valve control type semi-active oscillating damper

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[0016] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0017] The invention provides a valve-controlled semi-active shock absorber, which includes an oil cylinder assembly and an outer cylinder assembly located outside the oil cylinder assembly.

[0018] Wherein, one end of the oil cylinder assembly is used for connecting with the bogie, and the other end is used for connecting with the vehicle body. like figure 1 or figure 2 As shown, the oil cylinder assembly includes a first end joint 1 and a second end joint 10, wherein the first end joint 1 is used for connecting with the bogie, and the second end joint 10 is used fo...

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Abstract

The invention provides a valve control type semi-active oscillating damper. The valve control type semi-active oscillating damper comprises an oil cylinder component and an extra-cylinder component which is positioned on the outer side of the oil cylinder component, wherein the oil cylinder component comprises a guide bearing, an oil cylinder and a bottom valve seat which are fixedly connected with one another in turn; an oil storage tank is arranged outside the oil cylinder, and a piston and a piston rod are arranged in the oil cylinder; the extra-cylinder component comprises a first switching valve, a second switching valve, a two-position three-way valve, a proportional overflow valve, a throttling valve, a throttling overflow valve, a body acceleration sensor and a controller; the body acceleration sensor is used for detecting the acceleration of a body, outputting a signal and transmitting the signal to the controller; and the controller is used for controlling the energization and de-energization states of the first switching valve, the second switching valve and the two-position three-way valve, and controlling the current intensity of the proportional overflow valve at the same time. The valve control type semi-active oscillating damper is simple in structure, can make real-time responses and provide a continuously adjustable damping force according to the state of a train during operation, and can be simply and reliably controlled.

Description

technical field [0001] The invention belongs to the field of construction machinery for vehicles, and in particular relates to a valve-controlled semi-active shock absorber. Background technique [0002] As high-speed EMUs are running one after another, the lateral vibration of vehicles is an important factor affecting the ride comfort of high-speed trains. However, the damping of traditional passive shock absorbers is determined through initial design and optimization methods. Once selected, it cannot be adjusted during vehicle operation. Moreover, when the vibration velocity direction of the vehicle body is inconsistent with the relative velocity direction of the piston of the passive shock absorber, the damping force provided by the passive shock absorber will aggravate the vibration of the vehicle body and deteriorate the ride comfort. [0003] The control theory of the semi-active shock absorber between the railway vehicle body and the bogie frame is known as the skyho...

Claims

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Application Information

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IPC IPC(8): F16F9/18F16F9/50F16F9/34
Inventor 黎剑锋王凯平向贤虎熊求颛
Owner ZHUZHOU CSR TIMES ELECTRIC CO LTD
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