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Power battery management system and power supply control method thereof

A power battery and management system technology, applied in the control drive, electric traction, electric vehicles, etc., can solve the problems of excessive power supply, increase EV volume, weight and cost, reduce volume and weight, balance power, reduce cost effect

Active Publication Date: 2017-09-15
CONTEMPORARY AMPEREX RUNZHI SOFTWARE TECH LTD NINGDE CITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention provides a power battery management system and its power supply control method to solve the problem of too many external power sources in the entire EV system, which increases the volume, weight and cost of the EV

Method used

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  • Power battery management system and power supply control method thereof
  • Power battery management system and power supply control method thereof
  • Power battery management system and power supply control method thereof

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Embodiment Construction

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0036] figure 1 It is a schematic structural diagram of an embodiment of the power battery management system of the present invention, such as figure 1 As shown, the power battery management system of this embodiment includes a BMU1, a plurality of power battery modules, and a CSC corresponding to each power battery module. Such as figure 1 As ...

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Abstract

The invention provides a power battery management system and a power supply control method thereof. The power battery management system comprises a BMU, a plurality of power battery modules and CSCs corresponding to the power battery modules. Each CSC comprises a first DC / DC and a second DC / DC, wherein the input end of the first DC / DC and the input end of the second DC / DC are both connected with the positive electrode and the negative electrode of the corresponding power battery module so as to take electricity from the power battery module, the output end of the first DC / DC is connected with the input end of the corresponding CSC and used for supplying power to the CSC, and the output end of the second DC / DC is connected with the input end of the BMU and used for supplying power to the BMU. Due to the adoption of the technical scheme, the power battery modules can serve as the only power supply for power battery systems, the size and weight of an electric automobile are reduced, and the cost of the electric automobile is reduced.

Description

technical field [0001] The invention relates to the technical field of power batteries, in particular to a power battery management system and a power supply control method thereof. Background technique [0002] With the attention and investment of governments and car companies in electric vehicle projects, some large car manufacturers and battery suppliers have done a lot of research and experiments on various power batteries, and successfully developed related battery management systems (Battery Management System; BMS). [0003] BMS has a great impact on the safe operation of electric vehicles (Electric Vehicle; EV), the selection of vehicle control strategies, the selection of charging modes, and operating costs. Regardless of whether the vehicle is running or charging, the BMS must complete the real-time monitoring and fault diagnosis of the battery status, and inform the vehicle controller or charger through the bus, so as to adopt a reasonable control strategy to achi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L11/18B60L15/00
CPCY02T10/70
Inventor 王鹏飞梅敬瑶成勇潘约安
Owner CONTEMPORARY AMPEREX RUNZHI SOFTWARE TECH LTD NINGDE CITY