| 摘要 |
PURPOSE:To reduce the interrupting times of a compressor being delayed at a low speed as well as to aim at the prolongation of service life in a clutch, by detecting an engine speed increment mode electrically, while preventing the compressor from producing a stop function when the engine speed is below the setting one, in time of stopping the compressor. CONSTITUTION:An output Sc of a comparator 6 has its own discrimination capacity discerning between an engine speed increment mode and another mode so that the comparator output Sc is used as a clutch disconnecting command signal Sc through which a compressor clutch interrupting circuit 8 is actuated. When the signal Sc is H, if a compressor is made into nonactuation, a power loss in time of acceleration can be held down to a small extent. As a result, a gate circuit 7 is set up to the comparator output Sc, and unless information to the effect that one input of the gate circuit 7 goes beyond the setting revolution is given, the comparator output Sc is made so as to prevent it from functioning as the clutch discriminating command signal. That is, the output signal Sc of the gate 7 comes to the effective clutch disconnecting command signal. With this constitution, clutch interrupting time can be reduced. |
