Apparatus and method for controlling startup of engine

A method for controlling a startup of an engine, comprising steps of:

• providing an HSG and a starter motor;
• checking, by an engine controller, whether a startup of an engine is prepared to generate information on whether the startup is prepared when an ignition is turned on;
• checking whether communication between a hybrid controller and the engine controller is normally executed;
• generating information on whether the hybrid controller is normal, and determining whether a start signal is input from a driver;
• determining whether an EV mode is engaged when the start signal is determined to be input;
• driving a vehicle only in the EV mode when the EV mode is determined not to be engaged;
• generating a start control signal for starting the engine by the hybrid controller when the EV mode is determined not to be engaged;
• and
• starting the engine in response to the start control signal by a starter driver,
• wherein the starter driver starts the engine through the HSG or the starter motor, and the starter motor is operated by the engine controller automatically when the HSG breaks down, and
• the engine controller and the hybrid controller exchange the information on whether the startup is prepared and the information on whether the hybrid controller is normal with each other, and perform cooperative control therebetween.