One-dimensional joint simulation modeling method for thermal management system of hybrid electric vehicle

Abstract

The invention provides a hybrid electric vehicle thermal management system one-dimensional simulation modeling method. Comprising a power driving system model, an electrical system model, an engine cooling system model, a power battery thermal management system model, a motor electric control cooling system model, an air conditioning system model, a passenger compartment model, a vehicle energy management control model, a thermal management system control model and the like. According to the coupling relation of energy management and heat management of the whole vehicle, the simulation models of all the systems and the simulation models of the control modules are integrated by combining the transmission paths of energy flow and heat flow of the whole vehicle, control logic and the like, and a one-dimensional joint simulation model of the whole vehicle heat management system of the hybrid electric vehicle is constructed; a simulation platform is provided for integrated design, system component model selection matching, comprehensive performance analysis, control strategy optimization, energy consumption and driving range analysis and prediction and the like of a hybrid electric vehicle thermal management system.

Description

technical field [0001] The invention relates to the technical field of automobile simulation, in particular to a one-dimensional joint simulation modeling method for a thermal management system of a hybrid electric vehicle. Background technique [0002] Global environmental pollution and energy crisis have brought severe challenges to the automotive industry. Facing the dual pressure of environmental pollution and resource shortage, new energy vehicles have become the focus of research at home and abroad. Pure electric vehicles have problems such as long charging time, short driving mileage, and poor adaptability to high and low temperature environments, while hybrid electric vehicles have the advantages of low fuel consumption, low pollutant emissions, long driving mileage, and good environmental adaptability. It is a hot spot developed by auto companies at home and abroad. [0003] With the increasing electrification and complexity of hybrid electric vehicles, the correl...

AI Technical Summary

Problems solved by technology

Steady-state simulation cannot truly reflect the characteristics of the vehicle thermal management system, resulting in a relatively conservative design of the thermal management system

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