Dormancy control circuit

A control circuit and drive circuit technology, applied in electric traction, electric vehicles, vehicle energy storage, etc., to achieve the effect of reducing battery power consumption

Active Publication Date: 2014-06-04
凯迈(洛阳)电子有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the problems existing in the existing battery management system, and provide a dormancy control circuit with a new structure. The technical problem to be solved is to prevent the battery management system from consuming the lead-acid battery on the electric vehicle. phenomenon of exhaustion

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  • Dormancy control circuit

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Embodiment Construction

[0018] In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation, structure, characteristics and effects of the dormancy control circuit proposed according to the present invention will be described below in conjunction with the accompanying drawings and preferred embodiments. The details are as follows.

[0019] The working principle of the dormancy control circuit of the present invention is: when the electric vehicle is in the off state, the connection between the battery management system and the power supply is disconnected, and the battery management system is in the dormant state; when the electric vehicle is started, the key switch of the electric vehicle The control signal ON output by the circuit controls the conduction of one optocoupler, and the drive circuit drives the relay to pull in, the battery management system is powered on, and the battery management syst...

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Abstract

The invention discloses a dormancy control circuit. The dormancy control circuit comprises two optical couplers, a relay and a driving circuit. The input end of the first optical coupler is connected with the control signal output end of a battery managing system of an electric car, a collector of the first optical coupler is connected with a power source of the electric car, and an emitter of the first optical coupler is connected with the driving circuit. The input end of the second optical coupler is connected with the control signal output end of a key switch circuit of the electric car, a collector of the second optical coupler is connected with the power source of the electric car, and an emitter of the second optical coupler is respectively connected with the monitoring end of the driving circuit and the monitoring end of the battery managing system. The driving circuit drives the relay to be connected/disconnected under the control of the first optical coupler and the second optical coupler. By means of the dormancy control circuit, the consumption of battery electric quantity of the electric car by the battery managing system is effectively reduced under the flameout state of the electric car.

Description

technical field [0001] The invention relates to the technical field of power management, in particular to a dormancy control circuit. Background technique [0002] With the increasing tension of global oil resources and the increasing pressure of environmental protection, the automobile industry has begun to enter the transition period of transportation energy, and new energy vehicles represented by electric vehicles are gradually attracting people's attention. [0003] The battery management system is one of the key components of electric vehicles. Like conventional electronics in a car, the battery management system in an EV is powered by the car's lead-acid battery. [0004] In the process of implementing the present invention, the inventor found that the user will not directly turn off the power supply of the battery management system after parking the car, and the existing battery management system has many functions and high power consumption. The phenomenon that the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L11/18
CPCY02T10/70
Inventor 赵星房传礼韩金坤韩娟娟王兵张昉
Owner 凯迈(洛阳)电子有限公司
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