For AWD system driveline parts, it has become more important in recent years to develop products which can contribute to improvements in safety and driving performance and to the realization of higher capacity and fuel efficiency, as well as to improvements in coordination with various devices. For electronically controlled couplings for AWD vehicles, great importance is attached to a smaller size and higher capacity accompanying a longer anti-shudder durability, and to anti-noise and vibration technology for improved vehicle quietness. The prevention of self-excited oscillation called shudder plays a key role in improving the durability of AWD couplings. Shudder occurs due to stick slip on the sliding surfaces of these clutches. This report gives guidelines for anti-shudder durability improvement by analyzing the shudder-generating mechanism of the AWD coupling and by revealing the adsorption behvior of fluid additives with respect to the electromagnetic clutch. The application of a DLC-Si coating to the electromagnetic clutch prevents Fe wear powder from being produced and improves the anti-shudder durabilty of the fluid.
Analysis of AWD coupling anti-shudder durability
Analyse einer AWD-Kupplung in Bezug auf die Dauerhaftigkeit gegen selbsterregte Schwingungen
Review of Automotive Engineering (JSAE) ; 29 , 1 ; 89-95
2008
7 Seiten, 14 Bilder, 1 Tabelle, 16 Quellen
Article (Journal)
English
Anwendung im Fahrzeugbau , Allradsteuerungselektronik , Pkw (Personenkraftwagen) , Jeep , elektromagnetische Kupplung , mechanische Schwingung , Schwingungsverhalten , Schwingungsanregung , Dauerhaftigkeit , Lebensdauer , Verschleiß , verschleißfeste Beschichtung , Fahrzeuggeräusch , Fahrverhalten , Fahrzeugsicherheit , Allradantrieb , Schwingungsbegrenzung , Reibungskoeffizient
Analysis of AWD Coupling Anti-shudder Durability
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