| 摘要 |
A clutch controlling device switches the degree of engagement of a clutch according to at least one of the running state of a vehicle, the running state of an engine, or the manipulation state of a gearbox. A detecting device detects the temperature of an emission control catalyst. When a clutch controlling device decreases the degree of engagement of the clutch, the clutch controlling device increases the degree of engagement of the clutch if the temperature of the catalyst detected by the detecting device is less than a reference temperature. Accordingly, the temperature of the catalyst is increased.
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