Reliable network-controlled power platform system and control method for electric vehicles

Abstract

The invention belongs to the field of electric vehicle energy and power control technologies and systems, and particularly relates to a reliable network control power platform system of an electric vehicle and a control method. A shared redundant three-bus topology vehicle-mounted network and a hierarchical management function architecture are adopted; a power platform controller VCU, a braking subsystem, a power battery subsystem, a motor driving subsystem and a vehicle-mounted charger subsystem are included, and all the subsystems are mutually connected through the shared redundant three-bustopology vehicle-mounted network; the power platform controller VCU adopts a hierarchical management function structure and comprises a receiving module, a state judgment module, a mode selection module, a strategy management module and a sending module, and information exchange and cooperation are realized among the modules in a progressive cascade mode; the state judgment module is divided intoa normal state and an auxiliary state according to the bus network states. According to the system and method, the problems of transmission delay, desynchrony and network fault of network control type vehicle energy and power system control signals are solved.

Description

technical field [0001] The invention belongs to the field of electric vehicle energy and power control technology and systems, in particular to a reliable network-controlled power platform system and a control method for electric vehicles. Background technique [0002] With the increasing pressure of the energy crisis and environmental problems, the global industry has taken "energy saving" and "environmental protection" as the theme of development, and energy conservation and environmental protection have increasingly become the consensus of industrial development in various countries. In the automobile industry, due to the advantages of alleviating the energy crisis and reducing the greenhouse effect, electric vehicles are developing rapidly. However, short driving range and charging problems are still technical obstacles to the large-scale promotion of electric vehicles. The development of efficient drive motors, chargers and braking energy recovery systems is an importan...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the existing technologies, and propose a reliable network-controlled power platform system and control method for electric vehicles, which can realize task coordination between the sensor level and the actuator level and effectively solve network-induced signal transmission delays and signal inconsistencies. Synchronization and vehicle network fault tolerance issues, improve the real-time performance, synchronization and reliability of vehicle energy and power system control, and provide technical support for enhancing the network integration and control capabilities of vehicle systems

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