A mobile power battery thermal management system detection device and method

Abstract

The invention provides a detection device for a mobile power battery thermal management system, which is used to detect and evaluate the thermal safety of a power battery of a power vehicle, including: a data detection module, including a temperature sensor, a heat flux density sensor, a Bluetooth transmitter and a A data receiving transmitter for receiving and transmitting temperature parameters and heat flux parameters; a data storage module for receiving and storing temperature parameters and heat flux parameters, and uploading temperature parameters and heat flux parameters to the cloud; and a comprehensive evaluation module, including A first data processor for preliminary calculation processing to obtain average temperature, a second data processor for preliminary calculation processing to obtain average heat flux and average heat flux slope, an integrated data processor for comprehensive calculation and evaluation output display Screen. The invention also provides a detection and evaluation method based on the detection device of the mobile power battery thermal management system to evaluate the thermal safety of the power battery.

Description

technical field [0001] The invention belongs to the technical field of power battery thermal characteristic testing, and in particular relates to a detection device and method for a mobile power battery thermal management system. Background technique [0002] With the continuous expansion of the use of power batteries, the thermal runaway detection technology of power batteries needs to be further improved. Especially in electric vehicles, the use environment of lithium-ion batteries is very complex and harsh, so it is necessary to establish a more scientific quantitative testing and evaluation method. especially urgent. [0003] Publication number CN109752659A discloses a liquid-cooled battery PACK test system and method, and invented a liquid-cooled battery PACK test system and method in the charging and discharging state. The thermal parameters are only detected based on temperature data. The parameters are relatively single, and the accuracy and precision of the detecti...

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Problems solved by technology

[0003] Publication number CN109752659A discloses a liquid-cooled battery PACK test system and method, and invented a liquid-cooled battery PACK test system and method in the charging and discharging state. The thermal parameters are only detected based on temperature data. The parameters are relatively single, the accuracy and precision of the detection cannot be guaranteed, and the heat flux parameters that change rapidly are not involved, so the thermal safety of the battery system cannot be scientifically evaluated

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