| 摘要 |
<p>PURPOSE:To improve the reliability concerning durability of the control device by providing a switching means in series to a deexcitation resistance, and turn ing the switching means on for a predetermined time after a clutch disengage ment is commanded to flow the fine deexcitation current in the deexcitation resistance. CONSTITUTION:A deexcitation transistor 22 is provided between a deexcitation resistance 18 and the earth with emitter connection, and a collector thereof is connected to a collector of the positive side transistor 11 through the deexcitation resistance is, and a base of the deexcitation transistor 22 is con nected to an output port of a clutch current computing means 2. when the electricy is fed to a clutch at the time of engaging the clutch, the current is not flowed in the deexcitation resistance 18 to cut the wasteful power consump tion. At the time of disengaging the clutch, the fine deexcitation current is flowed through the deexcitation resistance 18 for a predetermined time after a disengagement of the clutch is judged by the clutch current computing means 2, and thereafter, the current is not flowed. Wasteful power consumption of the deexcitation resistance 18 is thereby eliminated to reduce the temperature rising, and reliability against durability is improved.</p> |
