Communications system for pure electric motor coach power cell management system and management method thereof

Abstract

The invention relates to a communication system used for a pure electric passenger vehicle battery management system. The communication system comprises a plurality of battery monitoring and controlling modules, a battery management system central control module, a whole vehicle controller, a vehicle-loading monitoring and controlling system, a ground monitoring and controlling system, and a charger. The communication system utilizes SAE J1939 as reference for formulating the communication protocol specification of a pure electric passenger vehicle battery management system and the communication content and formula of main key components, and meets the needs of the management and the fault diagnosis communication protocol of the electric vehicle battery system.

Description

technical field [0001] This communication protocol is applicable to the technical field of CAN bus communication of the pure electric bus battery management system. Background technique [0002] The increasingly prominent oil crisis and environmental pollution have made electric vehicles more and more aroused the attention of the society and become the development direction of future automobiles. Compared with traditional internal combustion engine vehicles, electric vehicles are still in the initial stage of industrialization in foreign countries. The related high-tech and products still rely on the support of supporting suppliers, and a new industrial system has not yet been formed. At the same time, in developed countries, the huge production scale and investment in social infrastructure formed by the traditional automobile industry, as well as the strong inertia of development, may in a sense constitute a social cost that hinders the development of a new generation of au...

AI Technical Summary

Problems solved by technology

[0003] Chinese patent application, whose publication number is CN1649345A, and the application titled "CAN bus-based pure electric bus communication method" discloses a CAN bus communication method for pure electric buses, which is based on a single CAN bus to achieve pure The communication of the electric bus uses a single CAN bus to realize the information communication of the motor controller, the electronic throttle controller, the cab display, the ABS controller and the power battery management system. There has been breakthrough development in communication technology, but it only discloses the communication protocol and communication information format among the vehicle controller, battery management system, motor controller and transmission, and does not disclose the internal information of the pure electric bus battery management system. Communication protocol, communication format information, communication information management method and charging management mode

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