Power battery management system with control and protection function and method thereof

Abstract

The present invention discloses a power battery management system and method with control and protection functions. The present invention includes a multi-functional detection plate; a multi-parameter fuzzy-processing module for making fuzzy processing, membership grade calculation, fuzzy inference and subsumption and working out the fuzzy processing of the detection signals output by the multi-functional detection plate in turn as well as judging the present operational state of the vehicle system; a battery control management module for sending the detection signals from the multi-functional detection plate into the multi-parameter fuzzy-processing module and issuing a control order in accordance with the judged results of the multi-parameter fuzzy-processing module; a controller circuit for implementing the control order issued by the battery control management module. The system provided by the present invention not only aims at the serious and clear vehicle system faults by starting up an automatic system protection mode through a quick treatment module, but also makes fuzzy judgment and implements the corresponding control to critical situations of imminent failures, minor faults and other uncertain situations.

Description

technical field [0001] The present invention relates to a power battery management system, in particular to a power battery management system and method integrating control and protection functions. Background technique [0002] With the implementation of various special research and development plans for electric vehicles or hybrid vehicles in my country, many manufacturers and R&D entities have also invested a lot of power in related development projects. In my country, the current technologies related to electric vehicles or hybrid vehicles can basically be connected with traditional internal combustion engine vehicles, and the important research and development topics in the next step should focus on extending to the direction of practicality and industrialization. [0003] In an electric vehicle or a hybrid vehicle, in order to ensure that the driving motor has sufficient power performance, its power battery pack often has a relatively high voltage. This voltage can us...

AI Technical Summary

Problems solved by technology

However, for the judgment of the overall operating status, there are currently the following problems: first, the operating status of the overall vehicle system is determined solely by a certain parameter

Second, in order to discover the potential danger of the system, it is necessary to judge what will happen to the system. However, the current judgment conditions cannot be clearly defined. It can only indicate the possibility of a value belonging to no fault, minor fault or serious fault

Third, the result of the judgment needs to be output to the controller and the driver for the next step. If the result of the judgment is too likely, that is, the possible values ​​of the overall operation situation are too many, it will consume a lot of decision-making time for the controller and the driver. , cannot effectively and quickly deal with problems in real time

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