A hierarchical control method for HEV energy management considering lane-changing behavior in a connected environment

Abstract

The invention relates to a HEV energy management layered control method considering lane changing behavior in a networked environment, belonging to the field of new energy vehicles. The method includes 1) a decision-making method for economical driving speed considering lane-changing behavior: according to the network information provided by vehicle-vehicle communication and vehicle-roadside equipment communication, the information of the vehicle ahead is predicted, and the optimal lane-changing behavior and the optimal lane-changing behavior are determined by hybrid MPC. Optimal speed; 2) Energy management optimization control method: Based on the HEV model, by tracking the optimized speed trajectory, the HEV is allocated energy to obtain the optimal control amount. The invention optimizes two dimensions of vehicle speed and power system to save energy and improve traffic efficiency, laying a foundation for designing a safe, energy-saving, efficient and intelligent hybrid vehicle. The invention can be widely used in economical driving and energy management of different types of hybrid electric vehicles.

Description

Technical field [0001] The present invention belongs to the field of new energy vehicles, relates to a heV energy management hierarchical control method considering lane changing behavior in a networked environment. Background [0002] Intelligence, networking and electrification are the development trends of future automobiles. With the rapid development of intelligent networking technology, the fusion network information provides a strong support for the energy-saving control of hybrid vehicles. Economic driving, as an effective way of energy-saving control, has received widespread attention. Incorporating it into energy management can help improve vehicle economy and traffic efficiency. [0003] Economic driving is to combine traffic information (such as traffic lights, traffic constraints) to optimize vehicle speed in different traffic scenarios to improve traffic efficiency and vehicle economy, and there are many ways to achieve it, such as: economic driving ACC. In the netw...

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Problems solved by technology

[0007] In view of this, the object of the present invention is to provide a hybrid electric vehicle (HEV) energy management layered control method considering lane-changing behavior in a networked environment. The impact of behavior on it, the degree of freedom of algorithmic control is low (only longitudinal control), and the energy-saving potential of energy management cannot be fully utilized, and the improvement of energy-saving effect is limited to a certain extent, especially in the case of large traffic flow (such as the vehicle ahead Slower), from the two dimensions of longitudinal and lateral motion control, integrate economical driving and energy management strategies, realize hierarchical energy-saving control of hybrid electric vehicle power systems in a connected environment, and improve traffic efficiency and vehicle economy

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