HYBRID ELECTRIC VEHICLE AND DRIVE CONTROL METHOD THEREOF

In a hybrid electric vehicle and a drive control method of a hybrid electric vehicle, the method includes determining residual values of an internal combustion drive system, an electric drive system, and a clutch included in a vehicle, the clutch being configured to selectively connect the internal combustion drive system and the electric drive system; determining a converted residual value of the internal combustion drive system and the electric drive system based on the determined residual values of the internal combustion drive system and the electric drive system and comparing the converted residual value with the residual value of the clutch; and when the determined converted residual value is greater than the residual value of the clutch, strengthening a connection state change requirement of the clutch.