Pure motor passenger car communication method based on CAN bus

Abstract

This invention puts forward a communication protocol suitable for pure electromotive passenger trains based on CAN2.0B and J 1939 related specifications, among which, it assigns new address, selects the assigned addresses in original SAEJ 1939 definition for the motor controller, electronic joint air gate controller, cabin display, ABS controller and power battery management system. The information contained in the parameter set and data field of entire car controller, motor controller, speed variator and battery management system of pure electromotive cars is re-defined in detail.

Description

technical field [0001] This communication protocol is applicable to the technical field of CAN bus communication of the pure electric bus control 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 automobiles, ...

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Problems solved by technology

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 automobiles, making it difficult for them to get off the ground. determined to make a fundamental strategic shift, potentially buying our country valuable time

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