Air-electric hybrid braking force control method and system for a locomotive and its brake

Abstract

The invention discloses a control method for an air electric hybrid brake force of a brake of a locomotive. The method comprises the following steps: acquiring an air brake force generated by a brake controller and a hybrid brake force which contains an electric brake force and an air supplement brake force and is generated in a brake area of servo controller; comparing the magnitude of the air brake force with the hybrid brake force; if the air brake force is more than the hybrid brake force, abandoning the hybrid brake force and taking the air brake force as a target value for regulating the pressure of a brake cylinder; if the air brake force is less than the hybrid brake force, abandoning the air brake force and taking the air supplement brake force in the hybrid brake force as the target value for regulating the pressure of the brake cylinder. According to the control method for the air electric hybrid brake force of the brake disclosed by the invention, the air brake force and the air electric hybrid brake force are reasonably selected, so that the sufficient brake force of the locomotive is guaranteed and the condition of excessive total brake force is avoided. The invention also discloses a control system for the air electric hybrid brake force of the brake and the locomotive which have the above beneficial effects.

Description

technical field [0001] The invention relates to the technical field of rail transit vehicle braking control, in particular to a method for controlling the air-electric hybrid braking force of a locomotive brake. The invention also relates to a brake machine air-electric hybrid braking force control system of a locomotive and a locomotive. Background technique [0002] Subway engineering maintenance vehicles are widely used in the transportation of materials, equipment and supplies, the shunting of subway vehicles, the rescue of accidents, the inspection and maintenance of subway lines and catenary, etc. [0003] The engineering maintenance vehicle can realize electric braking, resistance braking and air braking by manipulating the controller and brake controller. Manipulating the controller alone can realize hybrid braking of air brake and electric brake (air-electric hybrid braking), and manipulating the brake controller alone can realize air brake. However, during the ac...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the control of air braking and air-electric hybrid braking is generally operated by the driver based on experience. For example, when the driver feels that the vehicle speed is high, the required braking force is relatively large. Controller and brake controller, use air brake and air-electric hybrid brake at the same time, however, at this time, the total braking force may be too large and cause the phenomenon of locomotive impulse and sliding

At the same time, it is also possible that the braking force used is insufficient to meet the requirements of the braking force required by the locomotive, resulting in the phenomenon that the braking distance is too long

Images