| 摘要 |
PURPOSE:To eliminate shocks upon engagement of a clutch and as well to prevent the durability of the clutch from deteriorating, by setting the supercharging range in which the clutch is engaged, in a high rotational speed range upon extremely low temperature operation of an engine. CONSTITUTION:An operating condition detecting means 6 detects the amount Q of intake-air and the rotational speed N of an engine. Meanwhile a temperature detecting means 8 detects the temperature of cooling water and the temperature of lubrication oil, and judgement is made such that extremely low temperature operation should be taken when the temperature of water is below 0 deg.C or the temperature oil is below 0 deg.C. or when both are satisfied, and a setting value changing means 9 selects the set value of ratio of the intake-air amount and the rotational speed, which is larger than a normal value, thereby the range of a supercharger 60 in which a clutch operating means 7 is operated may be set to be narrower. |
