Device for preventing drunk driving of car and control method thereof

摘要

The present invention relates to an apparatus for preventing drunk driving of a vehicle and a control method thereof, comprising: an alcohol sensor which detects a driver's drinking amount and converts the same into an electrical signal;;An electronic controller which outputs a predetermined electrical signal to the next stage when the driver's drinking amount is higher than a reference value using the output signal from the alcohol sensor as an input signal; A starting motor switching actuator for determining the operation of the starting motor by using the output signal of the electronic controller as an input signal; And a fuel pump motor switching actuator configured to determine an operation of a fuel pump using the output signal of the electronic controller as an input signal, and a drunk driving prevention device for a vehicle capable of preventing drunk driving of the vehicle.