Double-motor torque distribution control method for rubber wheel low-floor intelligent rail train

Abstract

A double-motor torque distribution control method for a rubber wheel low-floor intelligent rail train comprises the steps that firstly, a program starts to run after a power-on self-test is carried out; secondly, pedal and gear information of a driver at a driving end is collected, information of a double-motor controller, management of batteries and an auxiliary system is collected through a CAN, the state and the working mode of the current train are subjected to logical judgment, and whether a fault exists or not is judged according to states of all system components, and the fault grade of the fault is judged; thirdly, according to features of two motors, features of the batteries, and the state of a pedal, the target torque and a working mode of the given motor are calculated through a motor control module, and limit torque is output according to the fault grade of the train; fourthly, the limit torque is output to the two motors to carry out torque output, in other words, a whole-train controller finally outputs the motor target torque to the double-motor controller, and the motor torque output is subjected to average distribution. The double-motor torque distribution control method has the advantages that the principle is simple, reliability is high, and the whole-train control performance can be optimized.

Description

technical field [0001] The invention mainly relates to the field of urban public transport equipment, in particular to a dual-motor torque distribution control method suitable for rubber-tyred low-floor intelligent rail trains. Background technique [0002] Urban rail transit refers to a special-line public transportation system with continuous guiding capabilities, which is characterized by having a specific track and vehicles running along the track. Common urban rail transit includes subways, light rails, and trams. Among them, subways and light rails are mostly built underground or on viaducts, and they can run freely in special rail lines by using the blocking mode. Although they have a strong transportation capacity, the initial infrastructure and vehicle purchase costs are relatively high, making them unavailable in small and medium-sized cities. application. Trams require a special power system and track coordination design, whether the design and construction cost...

AI Technical Summary

Problems solved by technology

The existing pure electric extended models all use a single head and one-way driving, and generally use a single motor as the main drive, which requires a large output power of the motor, and the cost of motor design and development is also relatively high

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