NOVELTY - The method involves monitoring (S410) a power status of a vehicle. The vehicle is controlled (S440) to travel at a first speed corresponding to the first acceleration command if a power failure is detected and a first acceleration command is received during the monitoring the power status of the vehicle. The detection of the power failure and the receiving of the first acceleration command are performed simultaneously. The speed of the vehicle is gradually decreased to a stop if a second acceleration command is not received while the vehicle travels at the first speed.    USE - Method for driving vehicle such as hybrid forklift truck and electric car.    ADVANTAGE - The driver is provided with authorities to determine continuance of driving or a decrease in traveling speed in the event of a power failure in a vehicle, thus the driver's uneasiness of a failure to control an abnormal condition of the vehicle is removed. The regenerative braking is reduced during a power failure to generate a proper amount of electricity, thus the power failure in the vehicle is stabilized. The elimination of the power failure is displayed on the display unit when the power failure is eliminated, thus the elimination is informed to the driver. The increase in driving speed of the vehicle is prevented to allow continuous driving of the vehicle when a power failure occurs during driving of the vehicle, thus the driving reliability is improved. The driving speed is limited during the power failure, thus the driver who failed to notice a display indicating occurrence of the power failure is enabled to recognize an abnormal condition of the vehicle.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for an apparatus for driving a vehicle.    DESCRIPTION OF DRAWING(S) - The drawing shows a flowchart illustrating the process for driving vehicle.    Step for power status of vehicle (S410)    Step for detecting power failure (S420)    Step for receiving first speed corresponding first acceleration (S430)    Step for controlling vehicle to travel at first speed (S440)    Step for restoring vehicle to normal state (S470)