STELSEL VOOR HET VERHINDEREN VAN DE OVERVERHITTING VAN EEN KOPPELING VOOR EEN VERBRANDINGSMOTOR.

摘要

A system for preventing the overheating of an electromagnetic clutch of an internal combustion engine mounted on a vehicle caused by slipping of the clutch for a considerably long time. The electromagnetic clutch has a drive member secured to a crankshaft of the internal combustion engine, a driven member adjacent to the drive member, and a magnetizing coil provided in one of said members. The heat quantity generated in the clutch is calculated by an operation circuit. A clutch current control circuit is provided such that when the heat quantity exceeds a predetermined value, the electromagnetic clutch is applied with a rated clutch current to engage the clutch without slipping for preventing overheating by the slipping.