Battery circuit breaker capable of detecting abnormal conduction of switch and detection method thereof

Abstract

The invention provides a battery disconnecting unit capable of determining abnormal conduction of a switch and a determining method thereof. The battery disconnecting unit comprises a first switch, a second switch and a processor. The first switch and the second switch are arranged between the first current path and the second current path between a power supply and a load. The first switch and the second switch are selectively turned on in accordance with the enable signal. The processor electrically connects one of the first and second current paths. When the enable signal indicates that the first and second switches are switched to the off state, the processor determines whether the first or second switch is not normally turned on according to the voltage value of the first or second current path and the preset voltage value. When it is judged that the first or second switch is not normally turned on, the processor compares the voltage value of the first or second current path with the magnitude of the preset voltage value to determine that the first or second switch is not normally turned on.

Description

technical field [0001] The invention relates to a battery circuit breaker capable of detecting abnormal conduction of the switch and a detection method thereof, in particular to a battery circuit breaker suitable for electric vehicles to judge whether the battery circuit breaker switch of the electric vehicle is welded and not normally conducted and its detection method. Background technique [0002] Existing vehicles usually burn gasoline as a power source. With the promotion of environmental protection concepts, in order to reduce the damage caused by burning gasoline and collecting oil to the environment, there are currently many researches and resources invested in the development of electric vehicles. Although electric vehicles use electricity as a power source to reduce damage to the environment, the battery capacity, charging and discharging efficiency, and system stability of the power system are all related to the quality of electric vehicles. [0003] In the elect...

AI Technical Summary

Problems solved by technology

[0004] The present invention is to provide a battery circuit breaker capable of detecting abnormal conduction of the switch and its detection method, so as to solve the problem that the existing battery circuit breaker cannot detect whether the switch of the battery circuit breaker is abnormally conducted, thereby reducing the power supply of the electric vehicle In case of abnormal consumption

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