Method and device for managing low-voltage power supply process of vehicle

A low-voltage battery, power management technology, applied in vehicle components, transportation and packaging, circuits or fluid pipelines, etc., can solve problems such as deep discharge of low-voltage batteries and shortened battery life

Pending Publication Date: 2019-06-25
NIO ANHUI HLDG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the battery detection module fails or the communication link between the battery detection module and the control module library fails, it may cause deep discharge of the low-voltage battery, resulting in shortened battery life and many other problems.

Method used

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  • Method and device for managing low-voltage power supply process of vehicle
  • Method and device for managing low-voltage power supply process of vehicle

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Embodiment Construction

[0021] The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. This invention may, however, be embodied in different forms and should not be construed as limited to only the embodiments set forth herein. The above-mentioned embodiments are given to make the disclosure of this document comprehensive and complete, so as to more fully convey the protection scope of the present invention to those skilled in the art.

[0022] In this specification, terms such as "comprising" and "comprising" mean that in addition to the units and steps that are directly and explicitly stated in the specification and claims, the technical solution of the present invention does not exclude Or the situation of other units and steps clearly stated.

[0023] Words such as "first" and "second" do not denote the order of elements in terms of time, space, size, etc. but are merely used to disting...

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Abstract

The invention relates to an automotive electric energy management technology, in particular to a method and device for managing a low-voltage power supply process of a vehicle and a computer storage medium implementing the method. The method for managing the low-voltage power supply process of the vehicle comprises the following steps that if state information of a low-voltage battery is available, a first operation strategy is determined based on the state information, wherein the first operation strategy involves that when the state information indicates electricity shortage of the low-voltage battery, a vehicle-mounted DC-DC module charges the low-voltage battery and / or supplies power to a low-voltage load on the vehicle; if the state information is unavailable, a second operation strategy is determined based on the supply voltage of the low-voltage battery to a low-voltage electric energy management module, wherein the second operation strategy involves that when the supply voltageis smaller, the vehicle-mounted DC-DC module charges the low-voltage battery.

Description

technical field [0001] The invention relates to the management technology of automobile electric energy, in particular to a method and device for managing the low-voltage power supply process of the vehicle and a computer storage medium for implementing the method. Background technique [0002] Low-voltage electrical appliances in electric vehicles are usually powered by on-board DC-DC modules. However, in some cases (for example, the vehicle is in sleep mode or locked), the on-board DC-DC module stops working. At this time, a low-voltage battery such as a 12V battery can be used to power the low-voltage electrical appliances in a working or standby state. With the trend of electrification, intelligence and interconnection, the static power consumption of electric vehicles has increased significantly. Due to the large static power consumption of electric vehicles, low-voltage batteries cannot support the standby time of several weeks like traditional fuel vehicles. This req...

Claims

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Application Information

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IPC IPC(8): B60R16/033B60R16/03
Inventor 梁超付力涛
Owner NIO ANHUI HLDG CO LTD
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