High-voltage connector detection device and method, and battery management system

Abstract

The invention provides a high-voltage connector detection device and method, and a battery management system, and relates to the field of high-voltage equipment assemblies. The high-voltage connectordetection device comprises a high-voltage interlocking device, a thermistor and a battery management system which are arranged in a high-voltage connector. A detection loop is composed of the high-voltage interlocking device, the thermistor and the battery management system. The power supply output end of the battery management system is connected with one end of the high-voltage interlocking device. The other end of the high-voltage interlocking device is connected with one end of the thermistor. The other end of the thermistor is connected with the signal input end of the battery managementsystem. The battery management system is used for determining high-voltage interlocking anomalies of the high-voltage connector when the situation that the detection loop is disconnected is detected,and determining whether the temperature of the high-voltage connector is abnormal or not according to the current value in the detection loop when the detection loop is connected. According to the high-voltage connector detection device, connecting-disconnecting and temperature information of the high-voltage connector can be detected only by using a signal detection port of the battery managementsystem, the simple, fast and convenient effects are achieved, and the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of high-voltage equipment components, in particular to a high-voltage connector detection device, method and battery management system. Background technique [0002] At present, with the development of the electric vehicle industry, high-voltage safety issues have become the primary issue of current electric vehicles, and it is very important to ensure reliable high-voltage connections of electric vehicles. As a connecting device in a high-voltage connection circuit, a high-voltage connector is one of the components with the greatest safety hazards in electric vehicles. [0003] When the current of the high-voltage connector is too large, the temperature is relatively high, and there is a risk of overheating. Practical applications require the use of temperature sensors (such as thermistors) to monitor the temperature of high-voltage connectors in real time to facilitate current control and reduce the risk ...

AI Technical Summary

Problems solved by technology

[0005] In view of this, the purpose of the present invention is to provide a high-voltage connector detection device, method and battery management system to alleviate the complexity of the circuits used in the detection of high-voltage connector on-off information and temperature information in the prior art, and the cost higher technical issues

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