One-line communication point-to-point type single lithium ion battery management system based on system on chip

A technology for lithium-ion batteries and lithium-ion battery packs, which is applied to battery circuit devices, electrical digital data processing, and secondary battery repair/maintenance, etc. Service life and other issues, to achieve the effect of reducing the number of components, high integration, and simplifying the architecture

CN102545292BActive Publication Date: 2015-02-04李鑫
7 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2015-02-04

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a lithium ion battery management system which is applicable to construction of a high-power and high-capacity power source for an electric bicycle and an electric vehicle. By monitoring and managing a single lithium ion battery, the whole battery management system is structuralized and modularized; and by constructing a point-to-point type communication network system, a network structure is simple and practical.
Need to check novelty before this filing date? Find Prior Art

Description

Technical field

[0001] The invention relates to power battery devices for electric bicycles and electric vehicles, and is especially suitable for high-capacity and high-power power sources composed of lithium-ion batteries. Background technique

[0002] With the development of the lithium-ion battery market, the battery management system has become more and more complex and diverse, which can basically be divided into two fields: special-purpose and general-purpose.

[0003] The limited number of lithium-ion batteries managed by the dedicated battery management system is suitable for the management system of small lithium-ion batteries used in mobile phones, notebook computers, digital cameras and portable small appliances, but not suitable for large-scale lithium-ion battery management systems for electric bicycles and electric vehicles.

[0004] General-purpose battery management systems generally adopt a layered or distributed architecture, which does not involve the mana...

Examples

Embodiment Construction

[0058] exist figure 1 Among them, according to the technical requirements of electric vehicles, the single lithium-ion battery is divided into modules. The single lithium-ion battery is mechanically connected in series and parallel to form a lithium-ion battery pack. The lithium-ion battery pack is suitable for electric bicycles. The power source, the lithium-ion battery pack is mechanically connected in series and parallel to form a lithium-ion battery box, and the lithium-ion battery box is suitable as a power source for electric vehicles. figure 1 Among them, the one-line communication bus between the lithium-ion battery pack control board and the single lithium-ion data acquisition unit is sequentially connected end to end, and the one-line communication bus between the main control board of the lithium-ion battery box and the lithium-ion battery pack control board is of equal status. parallel connection of the figure 2 Among them, the single lithium-ion battery uses poi...