| 摘要 |
<p>The clutch has an armature plate drawn against a rotor by forces of an electromagnet to engage the clutch, and a control unit designed for an operating voltage level (3) in respect of a continuous operating state, where the voltage level is less than electrical system voltage (8) of a vehicle. The control unit switches the electromagnet with a voltage level that is greater than the operating voltage level, and reduces the voltage level of electromagnet to design operating voltage level for an operating phase when the clutch is continuously engaged, by timing a supply voltage. The supply voltage can be timed by using pulse width modulation (PWM) technique. An independent claim is also included for a method for operating an electromagnetic clutch.</p> |
