ELECTROMECHANICAL BRAKE EMERGENCY BRAKING DEVICE FOR VEHICLE AND EMERGENCY BRAKING METHOD

An electro mechanical brake (EMB) emergency braking device includes an EMB driving unit such as an electric motor that generates driving force; an emergency braking driving unit that generates emergency braking driving force, and may include a pneumatic actuator; and braking force generating unit that generates braking force by receiving one of the driving force or the emergency braking driving force, where the EMB driving unit and the emergency braking driving unit may generate the driving force or the emergency braking driving force from different power sources.