| 摘要 |
<p>PROBLEM TO BE SOLVED: To compensate for lowering of responsiveness due to a disturbance element, such as an air gap of an armature, in an electromagnetic clutch control device to perform feedback control of a current such that a real exciting current is caused to coincide with a target exciting current. SOLUTION: Delay target magnetic flux densityϕm' where a delay element of a control system is added to a target magnetic fluxϕm is calculated by a delay element means M7. Time differential of the delay target magnetic flux densityϕm' is effected by a differential means M8 to calculate a delay target magnetic flux density rate-of-change dϕm'/dt. Meanwhile, a real magnetic flux density rate-of-change dϕ/dt of electromagnetic clutches CL and CR is calculated by a real magnetic flux density rate-of-change calculating means M9 and a deviation ER between the two magnetic flux density of rates-of-change dϕm'/dt and dϕ/dt is calculated by a deviation calculating means M10. A target exciting current Im is corrected based on the ER by a target exciting current calculating means M4 and feedback control is executed such that a real exciting current Ia coincides with the target exciting current Im.</p> |
