A Parallel Real-time Simulation System for Tracked Vehicle Electric Drive System

Abstract

The invention relates to a parallel real-time simulation system of an electric drive system of a crawler. The parallel real-time simulation system consists of a driver control device, an electric drive control system model and a crawler many-body-dynamics virtual prototype model. The parallel real-time simulation system is mainly used for the dynamic performance simulation analysis of the electric drive crawler and the modeling and simulation of the electric drive system. The electric drive control system model established under MATLAB (matrix laboratory) / SIMULINK consists of the driver control device, an accelerator pedal, a displacement sensor of the accelerator panel, a brake pedal, a displacement sensor of the brake pedal, an electric gear collection unit, a steering wheel, an angular displacement sensor of the steering wheel, a DC (direct current)-DC converter model, a power battery model, an engine-generator model, a comprehensive controller model of the whole crawler, an AC (alternating current)-DC converter model, a left-side motor, a control system model of the left-side motor, a right-side motor and a control system model of the right-side motor. The virtual prototype model is established according to many-body dynamic software RecurDyn. A real-time simulation platform RT-LAB is used for achieving the parallel real-time simulation of the driver control device, the electric drive control system model and the crawler many-body-dynamics virtual prototype model. The parallel real-time simulation system can be used for achieving the off-line simulation of the electric drive control system, the off-line simulation of many-body dynamics of the crawler, and the joint real-time simulation and semi-physical simulation of the electric drive control system model and a crawler many-body-dynamics virtual prototype.

Description

Technical field: [0001] The invention relates to a parallel real-time simulation system for an electric transmission system of a crawler vehicle, which is used for simulation analysis of the dynamic performance of the electric transmission crawler vehicle and modeling and simulation of the electric transmission system. Background technique: [0002] Electric drive tracked vehicles have very complex multivariable and nonlinear dynamic characteristics, involving different fields such as machinery, control, and electronics. Therefore, it is necessary to use interface technology to integrate the models established in each field into a system model to jointly complete the simulation. The motor drive system is the core component of a tracked vehicle, and its control characteristics directly affect the dynamic performance of the vehicle. Currently there are some literatures on co-simulation of electric drive tracked vehicles, among which "Matching Analysis of Drive System of Electr...

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Problems solved by technology

[0004] The purpose of the present invention is to design a parallel real-time simulation system for the electric transmission system of tracked vehicles in response to the requirement that the simulation system involved in the above documents cannot realize dynamic real-time fast simulation.

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