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Power battery management system used on electric automoble

A power battery and management system technology, applied to circuits or fluid pipelines, vehicle components, transportation and packaging, etc., can solve problems such as poor anti-interference ability, poor flexibility, and many connections, and achieve strong anti-interference ability and maintenance Convenience, the effect of less connection

Inactive Publication Date: 2006-11-08
BAILE ELECTROTHERMIC ELECTRIC APPLIANCE JIANGSU
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Problems solved by technology

[0005] The present invention is to solve the contradictions between the multi-functional requirements of the battery management system and the industrialization requirements of low cost and small volume in the prior art, the problems of many and complicated connections, poor anti-interference ability, complicated installation, and poor flexibility. Provides a power battery management system for electric vehicles, which adopts a modular structure, simple wiring, good flexibility, and can meet the needs of different layouts of different models in various complex situations

Method used

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  • Power battery management system used on electric automoble
  • Power battery management system used on electric automoble
  • Power battery management system used on electric automoble

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Embodiment Construction

[0014] Embodiment, with reference to the accompanying drawings, the present invention is a power battery management system for electric vehicles, which is applied to hybrid electric vehicles. For a battery module composed of 250 single cells, every 10 battery cells form a battery module. The nominal voltage is 300V and the capacity is 60Ah power nickel-metal hydride battery pack for management, the specific functions and indicators are as follows: it has the function of estimating the battery charge, and the error is less than 10%; it has the function of real-time monitoring of the operating status of the battery cell; the voltage detection accuracy: 0.2%; current detection accuracy: 0.5%; temperature detection accuracy: ±2°C; battery fault diagnosis and safety protection functions; system self-inspection and diagnosis functions; The control system realizes information communication. The invention mainly includes a data acquisition sub-board, a data acquisition motherboard, a ...

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Abstract

The present invention is a power battery management system for electric vehicles, which belongs to the field of vehicle power supply systems. The CPU is layered and controlled by blocks, and the second-level CAN field bus technology is used to realize the information communication between each other and the information communication with the vehicle master control system. Its advantages are: complete functions, meeting the management needs of various types of power batteries; flexible High reliability, no need to modify the hardware, can meet the needs of different layouts of different models in various complex situations; less connections, modular structure, standardized interfaces, easy installation and maintenance.

Description

technical field [0001] The invention relates to a power battery management system for an electric vehicle. Background technique [0002] In the process of research, development and industrialization of electric vehicles, power batteries and their management systems are the most important part as the main power source or auxiliary power source components. The quality of the battery management system directly determines the service life of the power battery pack. A suitable battery management system can give the battery the best protection while giving full play to the superior performance of the battery. [0003] In the existing technology, the design of the battery management system is either too complex and cumbersome or too crude. The design of the battery management system is too complicated. On the surface, it has more functions, but the required components are many and complicated, which makes the cost of the battery management system soaring. Meet the requirements of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60R16/04
Inventor 张鹏沈建杨桃周振齐郭建成
Owner BAILE ELECTROTHERMIC ELECTRIC APPLIANCE JIANGSU
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