Intelligent battery management system of electric car
A battery management system, a technology for smart electric vehicles, applied in electric vehicle charging technology, electric vehicles, circuits or fluid pipelines, etc., can solve problems such as inability to compare, lack of interactive information platforms, and lack of data storage.
Active Publication Date: 2014-09-17
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 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
Method used
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[0016] The present invention will be further described below in conjunction with accompanying drawing:
[0017] Such as 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 batteries . The battery data acquisition module is divided into 4 acquisition boards, and each acquisition board is responsib...
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The invention relates to an intelligent electric vehicle battery management system. The core control module of the present invention is connected to N battery data acquisition modules via the K bus, and is connected to a charging module, a battery pack monitoring module and a touch screen display system; including a database management module, a battery pack monitoring module, a self-check control module, and an abnormal control module; The data acquisition module has multiple battery data acquisition control chips; the core control module is connected to the computer control software through a usb interface. It solves the defects such as the inability to carry out real-time and dynamic comparison in the past, the lack of corresponding fault handling functions and the lack of an interactive information platform. The invention realizes data collection, SOC estimation, real-time communication, equalization, and insulation monitoring of battery voltage, current, and temperature data, and compares them with each standard data in the database, establishes a dynamic comparison model, and adopts a layered mode to control The module is responsible for voltage, current and temperature, and interacts with the user and alarms through the touch screen.
Description
technical field [0001] The invention relates to an electric vehicle battery system, in particular to an intelligent electric vehicle battery management system. Background technique [0002] With the development of electric vehicles, higher requirements are put forward for the battery as power, that is, the voltage, current, temperature, etc. of the battery (usually a battery pack) must be managed. [0003] Before the present invention, electric vehicle battery management system (abbreviated BMS) for lead-acid and nickel-metal hydride batteries and lithium batteries has been applied. 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 There is no corresponding fault handling function. The prev...
Claims
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IPC IPC(8): B60L11/18B60R16/02H01M10/42G01R31/36G01K13/00
CPCY02T10/7005Y02T90/16Y02T10/70Y02E60/10
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