Controller-based active radial bogie and active steering control method thereof

Abstract

The invention discloses a controller-based active radial bogie and an active steering control method thereof. The controller-based active radial bogie comprises an active radial bogie body, a drivingcircuit, a displacement sensor and the controller; the active radial bogie body comprises a main framework, an auxiliary framework and a radial driving mechanism; the main framework is hinged to the auxiliary framework; the two ends of the radial driving mechanism are connected with a front rotating arm and a rear rotating arm of the main framework respectively; the displacement sensor is installed on the main framework; the displacement sensor and an pulse encoder are connected with the controller; the controller is connected with a motor of the radial driving mechanism through the driving circuit. With the controller-based active radial bogie and the active steering control method thereof, the active steering control effect of the active radial bogie can be improved; the running stability and curve trafficability of a railway vehicle are improved; control is stable; steering control precision is high; immunity to external interference is almost realized; accurate active steering is achieved; the abrasion of wheel sets is effectively reduced; and the service lives of the wheel sets are prolonged.

Description

technical field [0001] The invention relates to the technical field of vehicle bogies, in particular to a controller-based active radial bogie and an active steering control method thereof. Background technique [0002] The bogie is a key component of a railway vehicle, and its dynamic performance is an important factor affecting the running stability and curve passability of a railway vehicle. Currently, the bogies of railway vehicles are mainly operated in a "passive steering" mode, where the creep forces between the wheels and rails are too high, resulting in excessive wear on the wheels and rails. For this reason, a radial bogie is developed that can effectively solve the contradiction between vehicle running stability and curve passability. On the premise of ensuring vehicle running stability, it can reduce the creep force between wheel and rail and reduce wheel and rail wear. The basic steering principle of the radial bogie is to convert the relative angular displacem...

AI Technical Summary

Problems solved by technology

However, the current radial bogies are still extremely rare in railway vehicles. The first reason is that the radial steering device based on the linkage mechanism is easily deformed and the maintenance cost is high. The more important reason is that it is difficult to control and difficult to implement.

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