Detection circuit, detection system and detection method

A detection circuit and detection method technology, applied in the direction of measuring electrical variables, measuring resistance/reactance/impedance, measuring devices, etc., can solve problems such as abnormal looseness of copper bars and copper bars, achieve improved accuracy, reduce accuracy errors, The effect of improving detection accuracy

Pending Publication Date: 2022-01-21
SUNWODA ELECTRONICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

, to solve the technical problem in the prior art that the detection of the copper bars in the battery system cannot judge the abnormal looseness of the copper bars

Method used

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  • Detection circuit, detection system and detection method
  • Detection circuit, detection system and detection method
  • Detection circuit, detection system and detection method

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Embodiment Construction

[0028] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The invention discloses a detection circuit, a detection system and a detection method, the circuit comprises a management system, a first bias circuit and a second bias circuit, one end of the first bias circuit is connected with one end of an element to be detected; one end of the second bias circuit is connected with the other end of the to-be-tested element and is grounded, and the other ends of the first bias circuit and the second bias circuit receive externally input bias voltage; the first biasing circuit comprises a first resistance voltage division circuit, and the second biasing circuit comprises a second resistance voltage division circuit; and the management system is used for collecting the first voltage in the first resistance voltage division circuit, the second voltage in the second resistance voltage division circuit and the current flowing through the element to be detected, and judging the state of the element to be detected. By implementing the invention, the voltage of the element to be detected can be tested, and the resistance is calculated in combination with the current, so that the state of the element to be detected can be judged according to the resistance. Therefore, the detection circuit can be applied to an electric vehicle battery system to realize connectivity diagnosis of a copper bar.

Description

technical field [0001] The invention relates to the technical field of electric vehicle batteries, in particular to a detection circuit, a detection system and a detection method. Background technique [0002] With the development of society, automobiles are playing an increasingly important role in people's lives and work. The automobile industry has become an important pillar industry of the national economy. However, automobiles bring convenience and comfort to people, but also bring many Negative effects, such as energy crisis, environmental pollution, etc. With the development of human civilization, in order to alleviate the dual pressure on resources and the environment, countries have introduced a series of policies to support the development of new energy vehicles. Designs combining hybrid electric vehicles, pure electric vehicles, 48V systems and traditional fuel vehicles have been realized one after another. [0003] In the design of pure electric vehicle battery...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/66G01R27/08
CPCG01R31/66G01R27/08
Inventor 洪丹陈斌斌雷晶晶张堤唐智陈晓东彭翔梁吉旺
Owner SUNWODA ELECTRONICS
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