A control method and control device for preventing vehicle overturning

Abstract

A control method for preventing vehicle overturning comprises the following steps: a, the vehicle overturning critical angle alpha(0) of an existing railway is calculated; b, the vehicle frame inclination angle alpha(x) is measured; c, the vehicle frame inclination angle alpha(x) and the vehicle overturning critical angle alpha(0) are compared; d, a vehicle rotation working device can continue rotating if the vehicle frame inclination angle alpha(x) is smaller than the vehicle overturning critical angle alpha(0); the vehicle rotation working device stops rotating if the vehicle frame inclination angle alpha(x) is equal to the vehicle overturning critical angle alpha(0); and the vehicle rotation working device rotates back if the vehicle frame inclination angle alpha(x) is larger than the vehicle overturning critical angle alpha(0). According to the control method for preventing vehicle overturning provided by the invention, on the basis of a control system composed of a programmable logic controller (PLC for short), hardware transformation can be completed by adding an angle sensor and simple wiring only. A control device for preventing vehicle overturning provided by the invention in another aspect can simply prevent vehicle overturning on a large ultrahigh railway.

Description

technical field [0001] The invention relates to a control method for preventing a vehicle from overturning. Background technique [0002] Railway vehicles generally have a working device that can rotate out of the vehicle. When it is working on a super-high railway and the working device rotates to the other side of the superelevation, the vehicle may overturn due to heavy objects on the working device. Superelevation means that at the curve of the track, in order to make the two strands of steel rails bear the force evenly and the vehicle run smoothly, keep the inner rail unchanged and raise the outer rail, the difference between the horizontal height of the outer rail surface and the inner rail surface is super high. [0003] At present, the electrical devices used to prevent the overturning of railway vehicles in my country are generally to install a set of travel switches on the bogies on both sides of the car body to detect the expansion and contraction of the bogie sp...

AI Technical Summary

Problems solved by technology

[0004] In the above-mentioned prior art, there is no difference between different superelevation rails. The travel switch only detects the zero boundary value of the spring stretch, and it is difficult to debug the travel switch to a suitable point. When the debugging is not in place, such as the travel switch pull wire debugging When it is too long, the limit switch will not be able to prevent the vehicle from overturning; and when the limit switch cable adjustment is too short, it is easy to malfunction and cause the rotating working device to stop frequently

Finally, the limit switch can only stop the rotating working device, and cannot guide the rotating working device to rotate to the maximum achievable angle.

[0005] The Chinese application with the application number 201110457270.1 discloses a method for preventing vehicle overturning. It lays magnetic materials on the road where the vehicle is driving, and a controllable electromagnetic coil is arranged on the vehicle. The switching of the electromagnetic coil is based on the wheel and the ground. Automatically control the contact situation, the polarity of the magnetic field generated by the electromagnetic coil is different from that of the ground, and they attract each other. The vehicle on the ground is pulled back to the ground. This method is simple and easy to implement, but the control effect is not good. Moreover, the vehicle rotation angle information cannot be fed back to the operator in time, which is not conducive to implementation.

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