A hybrid vehicle includes an engine for generating power through fuel
consumption, a generator driven at least by the engine for generating
power, a battery charged by the generator, a motor driven by at least the
electric power from the generator or the battery to generate power, and a
drive wheel that is rotated by the power of at least one of the engine
and the motor. The hybrid vehicle also includes a drive controller with a
control section configured to regulate the speed of the generator driven
by the engine, and configured to charge the battery with the power
generated by the generator. The drive controller also comprises a battery
current detector that produces a signal indicative of an amount of
current supplied from the generator to the battery, the control section
receiving said signal. The control section is configured to cause a
throttle opening of the engine to decrease while controlling the
generator to keep a rotational speed of the generator above about 80% of
an upper rotational speed limit. In this manner, the drive controller
inhibits the current supplied from the generator to the battery from
exceeding a permissible charging current value set for the battery during
the charging of the battery.