Single battery fault simulation device

The invention relates to the technical field of testing of new energy vehicle battery management systems, in particular to a single battery fault simulation device. One end of the single battery faultsimulation device is connected with the battery management system through a sampling line, and the other end of the single battery fault simulation device is connected with a battery; the single battery fault simulation device comprises a fault circuit module and a control module; and the fault circuit module comprises a plurality of loops used for being connected with the battery, and a plurality of electronic switches in the loops. The control module generates a control signal to control turning-on and turning-off of the electronic switches, thus faults related to a single battery and faults related to the sampling line are simulated, in this way, simple fault simulation of open circuit in the battery, short circuit of the single battery and the like can be achieved, and fault simulation of open circuit of the