Circuit for controlling solenoid clutch
AssigneeDiesel Kiki Co., Ltd.
InventorYoshio Ohtani
Life of this patent
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Abstract
A circuit for controlling a solenoid clutch wherein a gap is present between an electromagnet and an associated attracted member when in the disengaged state. The circuit controls the level of exciting current supplied to an exciting coil of the solenoid clutch in such a way that the width of the gap is first reduced to zero and then the slip rate of the solenoid clutch is gradually changed from 1 to 0, whereby the solenoid clutch gradually reaches the completely engaged state, making it possible to smoothly engage the solenoid clutch without the occurrence of mechanical shock.
Claims9
A circuit for controlling a solenoid clutch which includes an electromagnet and has an input side rotating member and an associated output side rotating member to be engaged with the input side rotating member, the input side rotating member and the output side rotating member being separated by a gap when the solenoid clutch is in the completely disengaged state, said circuit comprising:
- a first means for producing at least one command signal for commanding the start of the engagement of said solenoid clutch;
- and
- a second means responsive to said command signal for providing an exciting current for said electromagnet whose level is changed in such a way that the width of the gap is first reduced to zero and then the slip rate of said solenoid clutch is gradually changed from 1 to 0.
Dependencies are inferred from the claim text.