Intelligent battery management system of electric car

Abstract

The invention relates to an intelligent battery management system of an electric car. In the invention, a core control module is connected with N battery data collecting modules via a K bus and is connected with a charging module, a battery pack monitoring module and a touch screen display system; the battery management system comprises a database management module, the battery pack monitoring module, a self-checking control module and an abnormal control module; the battery data collecting modules are provided with a plurality of battery data collecting control chips; and the core control module is connected to computer control software by utilizing a universal serial bus (usb) interface. The battery management system provided by the invention has the advantage of solving the problems that real-time and dynamic comparison cannot be carried out, a corresponding fault processing function and a mutual information platform are lacked and the like in the past. The invention realizes that data such as voltage, current, temperature and the like of a battery are subjected to acquisition, SOC (State of Charge) estimation, real-time communication, equalization and insulation monitoring and compared with each standard datum in a database, so that a dynamic contrast model is established; and due to the adoption of a layered pattern, the control modules are used for controlling the voltage, the current and the temperature. The interaction with users and the warning are carried out through a touch screen.

Description

Technical field [0001] The invention relates to an electric vehicle battery system, and in particular to an intelligent electric vehicle battery management system. Background technique [0002] With the development of electric vehicles, higher requirements have been placed on batteries as power, that is, the voltage, current, temperature, etc. of the battery (usually the battery pack) must be managed. [0003] Before the present invention, electric vehicle battery management systems (BMS for short) for lead-acid and nickel-metal hydride batteries and lithium batteries have been applied. It has the disadvantage of not having a data storage function, and cannot compare the measurement data of the current battery pack with the previous battery status and the standard battery status in real time and dynamically to determine whether the battery is working properly, resulting in relatively low execution efficiency, and Lack of corresponding troubleshooting functions. The previou...

AI Technical Summary

Problems solved by technology

It has the defect that it does not have the data storage function, and cannot compare the measurement data of the current battery pack with the previous battery state and the standard battery state in real time and dynamically, so as to judge whether the battery is working normally, resulting in relatively low execution efficiency, and Lack of corresponding fault handling function

The previous electric vehicle battery management system lacked an interactive information platform for ordinary users

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