Energy-heat integrated real-time management system of intelligent networked hybrid electric vehicle

Abstract

The invention discloses an energy-heat integrated real-time management system of an intelligent networked hybrid electric vehicle, which belongs to the technical field of energy-saving control of hybrid electric vehicles. The invention aims to provide real-time dynamic traffic preview information by using network connection information. According to the energy-heat integrated real-time managementsystem of the intelligent networked hybrid electric vehicle, the temperature effect of a thermal chain is considered in the energy efficiency optimization problem of the whole vehicle, the multi-dimensional requirements of a driver in the aspects of dynamic property, temperature and the like are considered, and the fuel economy of the whole vehicle is further improved. The method comprises the steps of acquiring real-time traffic information flows on all road sections in combination with traffic flow cloud data; determining a global route, combining queue vehicle speed information on a drivingroute, transmitting vehicle speed prediction results of long and short time scales to a hybrid vehicle power chain-thermal chain dynamic coupling mechanical prediction module, and designing an SOC trajectory real-time optimization controller by utilizing the vehicle speed information of the long and short time scales provided by a multi-scale vehicle speed prediction module. According to the invention, the online optimization solving efficiency is improved, and the real-time performance of the system is ensured.

Description

technical field [0001] The invention belongs to the technical field of energy-saving control of hybrid electric vehicles. Background technique [0002] In recent years, with the continuous expansion of car ownership, the problem of energy consumption has become more and more serious. Hybrid technology combines the technical advantages of traditional internal combustion engine vehicles and pure electric vehicles. Compared with traditional internal combustion engine vehicles, it can greatly improve fuel economy and is an effective solution for energy saving and emission reduction of vehicles. [0003] At present, hybrid electric vehicles use energy management technology to optimize the distribution of the driving energy of the engine and electric motor in the power chain, so as to meet the driver's power demand and improve the fuel economy of the vehicle at the same time. However, the engine is not only the source of the power chain but also the source of the heat chain (the ...

AI Technical Summary

Problems solved by technology

Nevertheless, the existing technology still needs to be further improved. The engine is the source of the vehicle power chain and heat chain, and energy optimization control and thermal management are "independently fighting". There is still a gap in the field, and it is impossible to guarantee that the fuel economy of the vehicle is optimal under all weather conditions

In addition, how to use dynamic network information to provide support for energy-heat integrated management still faces many technical bottlenecks

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