Electric automobile integrated thermal management system mode switching method

Abstract

The invention provides an electric automobile integrated thermal management system control method, which is characterized in that: electric automobile thermal management is divided into three sectionsincluding a passenger compartment, a battery and a motor/electric controller, and the control method comprises the steps of: (1) collecting driver operation signals, environment information and partstates, and putting forward the mode switching requirements of all the sections; (2) performing switching to a corresponding thermal management mode according to the mode switching requirement of eachsection; (3) controlling a corresponding actuator to actuate according to the thermal management mode of each section; and (4) since the system has a certain integration degree, when the modes of thesections are switched, partial actuator actions possibly conflict, so that priority judgment is performed on the conflicting actions, the sections are perfectly matched, and a required mode is smoothly switched.

Description

technical field [0001] The invention relates to the field of thermal management of electric vehicles, in particular to integrated thermal management control of electric vehicles. Background technique [0002] Energy and environmental protection issues are global problems today. Traditional internal combustion engine vehicles have caused serious problems to the environment and hydrocarbon resources. As an advanced transportation tool with environmental protection and energy-saving advantages, developed countries such as the United States, Japan, and Europe have invested a lot Funds promote the research and development of electric drive vehicles. From the strategic perspective of maintaining energy security, improving the atmospheric environment, improving the competitiveness of the auto industry in the global market, and realizing the rapid development of my country's auto industry, the development of electric vehicles is the key to my country's development from a major automob...

AI Technical Summary

Problems solved by technology

[0004] Based on the design requirements of further energy saving and vehicle integration, the research on the integrated thermal management system of hybrid electric vehicles is more and more favored by scholars at home and abroad. It can significantly reduce energy consumption and increase cruising range, but it poses challenges to the design of vehicle thermal management control scheme and control strategy formulation

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