Drive train with rigidity dependent on rotational speed

US6435998B1 · kind B1 · utility

Assignee

• Mannesmann Sachs AG · DE

Inventors

• Jorg Sudau · Niederwerrn, DE
• Erwin Wack · Niederwerrn, DE
• Peter Frey · Hofheim, DE

Key dates

• Filing date: Jun 12, 2000
• Grant date: Aug 20, 2002
• Expiry date: Jul 26, 2020

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H2045/0294
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A drive train of a motor vehicle includes a gear arrangement with at least two gear elements moveable relative to one another acts in a torque transmission path between an internal combustion engine and a transmission. The gear arrangement being connected between a drive-side flywheel mass and a gear-side flywheel mass. The gear arrangement includes at least one additional mass having a center of gravity (Sp) which is displaceable radially in relation to an axis of rotation (D) of the torque transmission path as a function of a relative position of the at least two gear elements. In the event of a change in the relative rotary angle between the flywheel masses, a moment of inertia of the torque transmission path also changes, so that there is no definite resonant point and the torque transmission path takes effect as a self-steadying system. Furthermore, the additional mass may be arranged to generate a centrifugally dependent return force directed toward a specific relative rotary angle position. The force acts between two rotary parts rotatable at least to a restricted extent relative to one another and located in the torque transmission path. The specific relative rotary angle p…