Steering damper with active adjustment of damping characteristics

US9409588B2 · kind B2 · utility

Assignee

• Ohlins Racing AB · SE

Inventors

• Torkel Sintorn · Vaxholm, SE
• Johan Nilsson · Höllviken, SE
• Leif Gustafsson Vallander · Rödeby, SE
• Thorleif Hansen · Upplands Väsby, SE
• Joakim Sundevall · Upplands Väsby, SE

Key dates

• Filing date: May 5, 2011
• Grant date: Aug 9, 2016
• Expiry date: Nov 23, 2031

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16F9/466
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A device adjusts the rotational damping of a steering device such that the rotational damping varies depending on whether the rotational motion about a steering axis is caused by a force acting on the steering device of the vehicle or a force acting on the part(s) of the vehicle contacting the ground. The flow of hydraulic fluid in the steering damper partly or wholly is adjusted by a main valve unit that is coupled together with both an attaching part and a steering device. The opening area of the main valve unit is determined by a relative motion between the attaching part and the steering device such that the flow of the hydraulic fluid in a direction from and to the respective damping chambers of the steering damper is controlled depending on the cause of the rotational movement.