Intelligent battery management system of electric car

A battery management system, smart electric vehicle technology, applied in the direction of electric vehicle charging technology, electric vehicles, circuits or fluid pipelines, etc., can solve the problems of incomparability, lack of interactive information platform, lack of fault handling functions, etc.

Active Publication Date: 2011-10-05
江苏南极星新能源技术股份有限公司
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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 whet...

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  • Intelligent battery management system of electric car
  • Intelligent battery management system of electric car
  • Intelligent battery management system of electric car

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with accompanying drawing:

[0017] like figure 1 Shown:

[0018] The present invention includes a battery management system core control module (hereinafter referred to as the core control module) and a battery data acquisition module. The core control module and the battery data acquisition module communicate through the K bus, and at the same time there are N (N=1, 2, 3. ..) battery data acquisition modules are connected to the core control module of the battery management system, and simultaneously detect the voltage, current, temperature and internal resistance of N (N=1, 2, 3...) battery packs. The present invention collects M×N battery arrays (M, N=1, 2, 3...), here we take a 6×8 battery array as an example, the battery array has 8 battery groups, and each group has 6 save battery. The battery data acquisition module is divided into 4 acquisition boards, and each acquisition board is responsi...

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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...

Claims

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Application Information

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IPC IPC(8): B60L11/18B60R16/02H01M10/42G01R31/36G01K13/00
CPCY02T10/7005Y02T90/16Y02E60/12Y02T10/70Y02E60/10
Inventor 周剑明时庆春周海峰赵超
Owner 江苏南极星新能源技术股份有限公司
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