| 摘要 |
<p>PURPOSE:To control an actual clutch current and a torque with accuracy by memorizing a base voltage of an output transistor according to a power source voltage, while adding a signal by a rate of the base current to a command signal of a clutch current according to the detected power source voltage for correction. CONSTITUTION:A clutch current computation means 2 of a clutch current control means 1 outputs a clutch current command signal to electro-magnetic clutch 4, and memorizes a base current of a first output transistor 11 according to a voltage of a power source 3 for corecting the above command signal. A current deviation detector 14 detects a deviation between the command signal of the clutch current and a feedback signal detected by a current detecting means 13. A PWM (pulse width modulation) modulator 15 outputs a PWM signal according to the detected deviation, while a second output transistor 12 supplies the clutch current according to the PWM signal. A power source voltage detecting means 100 detects a voltage of the power source 3, and feeds it back to the computation means 2.</p> |
