Device for recognizing an overturn process of a vehicle

US6625564B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Bernhard Mattes · Sachsenheim, DE
• Juergen Kissner · Schwieberdingen, DE
• Walter Wottreng · Takasaki, JP
• Hans-Peter Lang · Harburg, DE
• Kosmas Knoedler · Bietigheim-Bissingen, DE

Key dates

• Filing date: Apr 11, 2002
• Grant date: Sep 23, 2003
• Expiry date: Apr 11, 2022

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60R2021/01327
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

The arrangement is to allow timely rollover recognition in the event of tipping over an embankment. For this purpose, the arrangement determines a predictive value of the yaw rate of the vehicle after a fictitious impact of the wheels on one longitudinal side of the vehicle against the ground from a yaw rate prevailing prior to the fictitious impact, the momentum of the vehicle in the direction of its vertical axis, and the angular momentum of the center of gravity of the vehicle prior to the fictitious impact. In addition, using the currently measured angle of inclination of the vehicle, it determines a critical yaw rate of the vehicle about its longitudinal axis instantaneously measured by the arrangement, which would be required to cause the vehicle to roll over. A conclusion is drawn about an imminent rollover if the predictive value of the yaw rate exceeds the critical yaw rate.