Automatic clutch

US6045484A · kind A · utility

Assignees

• Daimlerchrysler AG · US
• LuK Getriebe-Systeme GmbH · DE

Inventors

• Franz Kosik · Esslingen am Neckar, DE
• Thomas Grass · Neukirchen, DE
• Michael Salecker · Bühl, DE

Key dates

• Filing date: Mar 25, 1999
• Grant date: Apr 4, 2000
• Expiry date: Mar 25, 2019

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16D2500/7044
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

The invention concerns an automatic clutch in a motor vehicle drive train. During travel, the clutch is controlled with excess contact pressure such that the transmissible moment of the clutch exceeds the engine torque by a predetermined amount. At low speeds or in low gears and/or when travelling slowly, the amount of excess contact pressure is considerably reduced. At high speeds or in high gears and/or at when travelling fast, the clutch is set at the maximum transmissible moment.