Idling slide protective control method of locomotive
A technology for protection and control of locomotives, applied in the direction of locomotives, railway signals and safety, etc., can solve the problems of large locomotive traction loss, affecting locomotive adhesion and utilization, and locomotive front and rear impact, so as to reduce locomotive impact, easy to understand, and reduce torque. Unload the effect of depth
Active Publication Date: 2012-12-12
ZHUZHOU CSR TIMES ELECTRIC CO LTD
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[0032] The invention provides a locomotive idling slide protection control method, which can well overcome the existing technology that the unloading depth is too large, which not only causes the locomotive traction loss to be too large, affects the adhesion and utilization of the locomotive, but also causes the front and rear impact of the locomotive question
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[0069]The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0070] A typical implementation is a specific example of applying the technical scheme of the locomotive idling and sliding protection control method proposed by the present invention to the sticking utilization control system of the HXD1C AC drive electric locomotive. The following will specifically describe the embodiments of the present invention in combination with theoretical calculations.
[0071] Depend on figure 1 The shown single wheel motion...
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The invention relates to an idling slide protective control method of a locomotive. The method comprises the following steps of: detecting the acceleration d omega / dt of a locomotive wheel pair in real time, when the acceleration exceeds a protective threshold, i.e. domega / dt is more than ag, starting to unload a moment, and continuously searching the peak value of the acceleration, i.e. when d<2>omega / dt<2>=0 in the unloading process, searching the peak value; and instantly stopping to unload the moment when the peak value is searched, wherein the change rate of a motor torque dT / dt is 0, the adhesion of a locomotive wheel track recovers again and the change rate of the adhesive force of the locomotive wheel track dF / dt is more than 0. The invention can overcome the over-deepness unloading problem very well in the prior art, the problem cause the locomotive tractive effort loss to be great, affects the adhesion utilization of the locomotive and causes the front and back impacts of the locomotive.
Description
technical field [0001] The invention relates to a locomotive sticking control calculation method, in particular to an idling slide protection control method of a locomotive, which realizes optimal control of locomotive idling slide protection. Background technique [0002] The traction force of a locomotive is produced by the adhesion of the wheel and rail. The wheel weight, the elasticity of the wheel and rail material, and the torque applied to the wheel constitute the three elements that generate the traction force of the wheel circumference. like figure 1 shown, the load on wheel Under the action of the wheel-rail contact part elastically deforms to form an elliptical contact area. When the wheel is driving torque When rolling forward under the action of the wheel and rail, the material of the wheel and rail deforms elastically near the contact area, thereby generating a tangential force on the contact surface . Tangential force That is the wheel traction, it m...
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IPC IPC(8): B61C17/00B61L23/00
Inventor 丁荣军李江红陈华国徐立恩曾云彭辉水
Owner ZHUZHOU CSR TIMES ELECTRIC CO LTD