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Charging awakening circuit, battery management system and electric automobile

A battery management system and wake-up circuit technology, applied in electric vehicles, electric vehicle charging technology, battery/fuel cell control devices, etc., can solve the problems of complicated wake-up circuit structure and low power consumption, and achieve the goal of simplifying the circuit structure Effect

Pending Publication Date: 2019-10-22
HUATING HEFEI POWER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the level sent by the charging pile is used as the charging wake-up signal, devices such as latches and LDOs (low dropout regulators) are required. The structure of the entire wake-up circuit is very complicated, and it does not meet low Principles of Power Consumption

Method used

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  • Charging awakening circuit, battery management system and electric automobile
  • Charging awakening circuit, battery management system and electric automobile
  • Charging awakening circuit, battery management system and electric automobile

Examples

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Embodiment Construction

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all the embodiments. The components of the embodiments of the present application generally described and shown in the drawings herein may be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application. Based on the embodiments in this application, all other embodiments obtained by those of ordinar...

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Abstract

The invention discloses a charging awakening circuit, a battery management system and an electric automobile. A first charging capacitor connected with a charging gun interface is arranged, so that alevel signal on a charging gun is converted into a pulse signal to serve as an awakening signal when the charging gun is connected. The electric automobile comprises the battery management system andthe charging gun interface, wherein the charging gun interface is used for connecting the charging gun with a battery pack; and the charging awakening circuit comprises a first charging capacitor, a charging module and a discharging module, the first end of the first charging capacitor is connected with the awakening signal input end of the battery management system, the second end of the first charging capacitor is connected with the charging gun interface, the charging module is connected with the first end, and the discharging module is connected with the second end. The charging awakeningcircuit has the characteristics of being simple in circuit structure and energy-saving.

Description

Technical field [0001] This application relates to the technical field of electric vehicles, and in particular to a charging wake-up circuit, a battery management system and an electric vehicle. Background technique [0002] With the continuous enhancement of people's concept of low-carbon and environmentally friendly life, new energy vehicles have gradually entered people's daily life as a new travel tool. Existing new energy vehicles are generally driven by electricity. Therefore, it is necessary to use charging piles to charge the battery packs of the entire vehicle. In the process of charging an electric vehicle, it is necessary to wake up the battery management system for charging when the electric vehicle is connected to the charging pile, and put the battery management system into a dormant state when the electric vehicle is charged, so as to avoid waste of electric energy and battery overcharging . [0003] In the prior art, when waking up the car battery management syste...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L58/10B60L53/62
CPCB60L58/10B60L53/62Y02T10/70Y02T10/7072Y02T90/12
Inventor 王傲胡有亮汪浩王扬周鹏
Owner HUATING HEFEI POWER TECH
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