Electric vehicle high-voltage power storage battery inspection control method and device

Abstract

The invention provides an electric vehicle high-voltage power storage battery inspection control method and device. The method comprises the steps that when a power management system BMS is in a dormant state, the BMS is awakened according to preset time intervals in multiple preset time periods, and the preset time interval in the later time period is larger than the preset time interval in the previous time period; and detecting a battery after the BMS is awakened, and judging a condition of the battery according to a detection result. In the invention, the battery management system is awakened regularly at the preset time intervals; and the battery management system detects the battery after being awakened, judges the condition of the battery according to a monitoring result and takes corresponding measures according to the condition of the battery so that a battery fault of the electric vehicle is effectively pre-judged, a problem of frequent faults during standing of the battery of the existing electric vehicle is solved, and a fault probability of the battery of the electric vehicle is reduced.

Description

technical field [0001] The invention relates to the technical field of vehicle inspection, in particular to a method and device for patrol inspection control of a high-voltage power storage battery of an electric vehicle. Background technique [0002] With the popularization and application of electric vehicles, electric vehicles are gradually accepted by everyone, and the market holdings are gradually increasing. Electric vehicles use high-voltage power batteries. Due to the characteristics of batteries, especially high-power batteries with relatively large energy storage, once serious failures such as thermal runaway and insulation failure occur, it may cause accidents such as battery fires that endanger the safety of personnel. For this reason, serious faults involving the safety of high-voltage power batteries require special detection and appropriate measures for protection. [0003] Moreover, in addition to the risk of failure of the high-voltage power battery under w...

AI Technical Summary

Problems solved by technology

[0003] Moreover, in addition to the risk of failure of the high-voltage power battery under working conditions (external output of high voltage, or charging of internal input of high voltage), there is also a risk of failure when it is left standing and not working.

Faults such as monomer voltage imbalance, excessive temperature rise, and battery insulation may further cause thermal runaway faults, and eventually lead to serious damage or fire of high-voltage power batteries

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