| 摘要 |
A vehicular electric power generating system includes a vehicular electric generator rotatable by an engine mounted on a vehicle, and a rotational speed changing device for transmitting rotational power generated by said engine to said vehicular electric generator to rotate said vehicular electric generator selectively in a relatively high first rotational speed range and a relatively low second rotational speed range. An ECU controls the speed ratio of the rotational speed changing device based on the running state of the vehicle and the charged state of a battery on the vehicle, to control the vehicular electric generator to rotate selectively in the first rotational speed range and the second rotational speed range.
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