Electric vehicle battery failure emergency control system

Abstract

The invention provides an electric automobile storage battery failure emergency control system. The electric automobile storage battery failure emergency control system at least comprises a storage battery set, a storage battery detection unit, switch units, a main output switch, a control unit ECU and a voltage regulation unit. The storage battery set is composed of storage battery units and supplies power to a motor of an electric automobile. The storage battery detection unit is used for detecting voltage and current of each storage battery unit. The switch units are used for connected the remaining storage battery units in series when one or more storage battery units in the storage battery set break down. The control unit ECU is used for receiving signals output by the storage battery detection unit and controlling motion of the switch units and the main output switch according to the signals. The voltage regulation unit is connected with a main output end of the storage battery set. The main output switch is arranged at the main output end of the storage battery set and is connected with the input end of the motor. The output end of the voltage regulation unit is electrically connected with the input end of the motor. According to the electric automobile storage battery failure emergency control system, when part of storage battery units in the storage battery set break down, the remaining storage battery units in good condition can be used for supplying power and ensuring normal working of the motor of the electric automobile, a driver can have enough time to deal with the failure, and the driver can drive the electric automobile to run to a flat location to park when the storage battery units break down in the climbing process. Therefore, safety accidents can be effectively avoided.

Description

technical field [0001] The invention relates to the field of electric vehicle battery control, in particular to an electric vehicle battery failure emergency control system. Background technique [0002] Electric vehicles are powered by on-board power supplies and driven by motors. As a new energy vehicle, its impact on the environment is smaller than that of traditional fuel vehicles, and the energy is regenerative, so the prospect of electric vehicles is widely optimistic. And it has been well developed both at home and abroad. [0003] For pure electric vehicles, when the battery pack as the power source of the electric vehicle fails, because the battery pack cannot output the voltage and current required by the motor, and because the working voltage of the motor of the electric vehicle is rated, the battery pack When a fault occurs, the motor often cannot work; especially when the vehicle is climbing, when the battery pack suddenly fails in the middle of the climb, the ...

AI Technical Summary

Problems solved by technology

[0003] For pure electric vehicles, when the battery pack as the power source of the electric vehicle fails, because the battery pack cannot output the voltage and current required by the motor, and because the working voltage of the motor of the electric vehicle is rated, the battery pack When a fault occurs, the motor often cannot work; especially when the vehicle is climbing, when the battery pack suddenly fails in the middle of the climb, the motor stops working, and the driver cannot immediately take corresponding countermeasures at the moment of the fault, thus providing for the safety of the driver and passengers. Serious hazards to personal safety

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