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Method and system for electricity lacking protection of automobile storage battery

A technology for protecting systems and batteries, applied in electric vehicles, electric traction, vehicle energy storage, etc., can solve problems such as vehicle failure to start and battery power loss, and achieve the effects of avoiding battery power loss, prolonging service life, and saving pain

Inactive Publication Date: 2018-04-06
GEELY AUTOMOBILE INST NINGBO CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the above-mentioned problems in the prior art, the object of the present invention is to provide a method and system for protection against power loss of automobile batteries, which effectively solves the problem that the electric vehicle cannot be started due to the power loss of the battery caused by the long-term standing of the electric vehicle

Method used

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  • Method and system for electricity lacking protection of automobile storage battery
  • Method and system for electricity lacking protection of automobile storage battery
  • Method and system for electricity lacking protection of automobile storage battery

Examples

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Embodiment 1

[0035] This embodiment provides a protection method for preventing power loss of an automobile battery. The method can be applied to a fuel cell electric vehicle and a hybrid electric vehicle with an engine and a power battery, so as to avoid the vehicle being unable to start due to the battery power shortage caused by the electric vehicle standing for a long time. The problem. Specifically, as figure 1 As shown, the anti-loss protection method for automobile battery in this embodiment includes the following steps:

[0036] S101: Determine whether the current state of the vehicle is the locked dormant state, and if the current state of the vehicle is the locked dormant state, go to step S102.

[0037] It should be noted that the locked sleep state of the vehicle is that the engine stops running and the vehicle is in a stationary state.

[0038] S102: Determine whether the current battery pack is in a state of waiting for power loss, and if the current battery set is in a sta...

Embodiment approach

[0040] As a preferred embodiment, the judging whether the current battery pack is in a state of waiting for power loss is realized by the following methods: judging whether the current state of charge SOC of the battery pack is less than a first threshold, if the current state of charge SOC of the battery pack is less than The first threshold value, the battery pack is in a state of waiting for power loss.

[0041] The state of charge SOC is the capacity of the battery pack currently possessed in the fully charged state of the battery pack, which indicates the remaining power of the battery pack. The first threshold is the preset state of charge SOC value. If the current state of charge SOC is less than the first threshold, that is, the remaining power of the current battery pack is lower than the power corresponding to the preset first threshold, then the battery pack is considered to be in deficit. power status. In one embodiment, the first threshold is 5% to 10%, that is, ...

Embodiment 2

[0056] This embodiment provides a protection method for preventing power loss of an automobile battery. The method can be applied to a fuel cell electric vehicle and a hybrid electric vehicle with an engine and a power battery, so as to avoid the vehicle being unable to start due to the battery power shortage caused by the electric vehicle standing for a long time. The problem. Specifically, as figure 2 As shown, the anti-loss protection method for automobile battery in this embodiment includes the following steps:

[0057] S201: Determine whether the current state of the vehicle is the locked dormant state, and if the current state of the vehicle is the locked dormant state, go to step S102.

[0058] It should be noted that the locked sleep state of the vehicle is that the engine stops running and the vehicle is in a stationary state.

[0059] S202: Determine whether the current battery pack is in a state of waiting for power loss, and if the current battery pack is in a s...

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Abstract

The invention provides a method and system for electricity lacking protection of an automobile storage battery. The method includes step S01 of determining whether a current state of a vehicle is a locked and dormant state, and if the current state of the vehicle is the locked and dormant state, executing step S02; step S02 of determining whether a current storage battery pack is in a state of being to undergo electricity lacking, and if the current storage battery pack is in the state of being to undergo electricity lacking, executing step S03; step S03 of judging whether the current gear position of the vehicle is at a gear P or N, and if the current gear position of the vehicle is at the gear P or N, executing step S04; step S04 of determining whether a current engine fuel amount is greater than or equal to a preset value, and if the current engine fuel amount is greater than or equal to the preset value, executing step S05; and step S05 of starting an engine to charge the storage battery pack. According to the method, the engine can be started without a key, the vehicle is more intelligent, the problem of storage battery electricity lacking resulting from long-time standing storage of the vehicle is solved, and it is ensured that the vehicle can still be started normally after being stored for a long period of time.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a method and a system for preventing power loss of an automobile battery. Background technique [0002] At present, fuel cell electric vehicles and hybrid vehicles can be powered by power batteries, such as lead-acid batteries and lithium-ion batteries. When the user does not use an electric vehicle, the on-board electrical appliances themselves will consume power due to their static current. If the electric vehicle is left standing for too long, the battery will lose power when it is discharged, and the battery loss will cause at least the following two problems : First of all, the most direct is that the vehicle cannot be started, and the vehicle can only be started by connecting other batteries or replacing the battery, which will bring great inconvenience to the owner; secondly, the long-term loss of battery power will greatly reduce the service life of the battery ...

Claims

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Application Information

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IPC IPC(8): B60L11/12B60L50/15
CPCB60L50/15B60L2240/44B60L2240/54Y02T10/70
Inventor 刘宁
Owner GEELY AUTOMOBILE INST NINGBO CO LTD
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