When a power demand Pe* is not less than a preset reference value Pref2 in
a vehicle stop state (steps S110 and S260), a target rotation speed Ne*
of an engine is set to a rotation speed of not lower than a relatively
low minimum rotation speed Nemin2 (step S290). A target timing VT* is set
according to the set target rotation speed Ne* to have a smaller degree
of advance, compared with the setting of the target timing VT* in an
engine operating state for driving the vehicle (step S300). The engine is
accordingly driven at the target rotation speed Ne* with an open-close
operation of an intake valve at the target timing VT*. Such drive control
effectively reduces the driver's uncomfortable feeling or odd feeling
triggered by operation of the engine at a relatively high rotation speed
in the vehicle stop state. The drive control also ensures the better
open-close timing of the intake valve according to the operating
condition of the engine and enables more appropriate control of a
variable valve timing mechanism configured to adjust the open-close
timing of the intake valve.