A rail train anti-air rotation anti-skid adhesion optimization control method

Abstract

The invention relates to a rail train anti-air rotation anti-skid adhesion optimization control method. According to the current rail surface adhesion condition, the threshold value, the torque decreasing slope and the rising slope are adjusted on-line in real time. Within one anti-air-to-anti-skid regulation cycle, the descent slope is based on the current axis acceleration, and the speed difference is implemented by two steps: fast descent and slow descent. The rising slope is carried out in two steps, fast-rising and slow-rising, according to the latch torque at the time when the thresholdvalue is triggered in the previous regulation cycle. The method takes the easy-to-extract acceleration and the speed difference as the judging conditions, and adjusts the threshold value and the slopeon-line in real time, so that the output torque can be adaptively adjusted according to the rail surface condition, the output torque tends to be stable after 3 to 5 adjustment cycles, the adhesion utilization ratio is effectively improved, and the vehicle stability and the passenger comfort are remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of rail vehicle control, and relates to anti-idling and anti-adhesion control technology for rail trains, in particular to an optimal control method for anti-idling and anti-slip adhesion of rail trains, which is used to control the adhesion between rail vehicles and rail surfaces. Prevent idling and sliding of rail vehicles during operation. Background technique [0002] During the operation of the rail train, the traction or braking force is transmitted through the effective adhesion area between the wheel and the rail. Therefore, the adhesion characteristics of the rail surface directly affect the actual traction force and braking force output by the train. Usually, when the rail surface is dry, the available adhesion coefficient does not change much; but when it encounters rain, snow, heavy fog, or fallen leaves, oil stains, etc. on the track, the rail surface becomes wet and slippery, and the available...

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Problems solved by technology

[0007] The present invention aims at the above-mentioned problems in the prior art, such as large torque fluctuation, low adhesion utilization rate, poor passenger comfort, and difficulty in engineering, etc., and provides a system that can adaptively adjust traction or braking torque according to rail surface conditions. Torque output, high utilization rate of adhesion, and easy engineering of anti-idling and anti-slip adhesion optimization control method for rail trains

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