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Vehicle storage battery state monitoring method and system

A condition monitoring system and storage battery technology, which is applied to vehicle components, vehicle energy storage, battery/fuel cell control devices, etc., can solve problems such as the crux of the problem that cannot be accurately found, the controller does not sleep, and the static current of the vehicle is large. To achieve the effect of easy analysis and troubleshooting

Active Publication Date: 2021-06-22
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the intelligence of vehicles is increasing day by day, the signal interaction is frequent, and the scene of the user using the vehicle is also complex and changeable. Signal reception or transmission or the impact of the surrounding environment, one or more controllers do not sleep for a long time, or the static current of the vehicle after power off will cause the battery to lose power
In addition, the user's excessive power consumption when the engine is not started will also cause the battery to lose power
After the battery is discharged, it is very easy to cause the vehicle to fail to start normally.
However, when the after-sales personnel analyze and troubleshoot the problem, they cannot accurately find the crux of the problem, resulting in the failure to solve the problem in time

Method used

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  • Vehicle storage battery state monitoring method and system
  • Vehicle storage battery state monitoring method and system
  • Vehicle storage battery state monitoring method and system

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Embodiment Construction

[0040] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0041] see figure 1 As shown, this embodiment discloses a method for monitoring the state of a vehicle battery, comprising the following steps:

[0042] (S01) The vehicle body controller timed the vehicle control phase and collected the voltage signal and current signal of the battery corresponding to the control phase. The corresponding relationship is converted into the corresponding SOC value of the state of charge;

[0043] (S02) The vehicle body controller uploads the state of charge SOC signal of the battery, the current signal of the battery and the timing signal to the background server in the control stage;

[0044] (S03) The background server calculates the rate of change of the state of charge SOC of the storage battery per unit time, and the formula is:

[0045]

[0046] In the formula: I is the real-time charging current o...

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Abstract

The invention discloses a vehicle storage battery state monitoring method and system, and the method comprises the steps: carrying out the timing of a vehicle control stage through a vehicle body controller, and collecting a voltage signal and a current signal of a storage battery corresponding to the control stage, converting the voltage signal of the storage battery into a corresponding state of charge (SOC) value according to a preset corresponding relationship between the SOC of the storage battery and the voltage of the storage battery at different temperatures; enabling the vehicle body controller to upload a charge SOC signal of the storage battery, a current signal of the storage battery and a timing signal in the control stage to a background server; enabling the background server to calculate the change rate of the state of charge (SOC) of the storage battery in unit time, enabling the background server to judge whether the change rate of the state of charge (SOC) of the storage battery in unit time in the control stage is larger than a preset SOC change rate threshold value or not, and if yes, marking and storing the information that the storage battery is lack of electricity in the control stage. According to the method, big data processing and analysis are carried out through the background server, and whether power shortage occurs in the whole vehicle control stage or not can be monitored.

Description

technical field [0001] The invention relates to the technical field of vehicle battery monitoring, in particular to a method and system for monitoring the state of a vehicle battery. Background technique [0002] At present, the intelligence of vehicles is increasing day by day, the signal interaction is frequent, and the scene of the user using the vehicle is also complex and changeable. Signal reception or transmission or the impact of the surrounding environment, one or more controllers do not sleep for a long time, or the static current of the vehicle after power off will cause the battery to lose power. In addition, the user's excessive power consumption when the engine is not started will also cause the battery to lose power. After the battery loses power, it is very easy to cause the vehicle to not start normally. However, when the after-sales personnel analyze and troubleshoot the problem, they cannot accurately find the crux of the problem, resulting in the failur...

Claims

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Application Information

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IPC IPC(8): G01R31/3842G01R31/3828B60L58/12
CPCG01R31/3842G01R31/3828B60L58/12B60L2240/547B60L2240/549Y02T10/70
Inventor 干能强张伟王强
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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