Method and device for detecting a lane change

US6510373B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Bernd Grossardt · Brackenheim, DE
• Uwe Pruhs · Brackenheim, DE
• Stefan Diehle · Ditzingen, DE
• Werner Langer · Ludwigsburg, DE

Key dates

• Filing date: Jun 27, 2001
• Grant date: Jan 21, 2003
• Expiry date: Jun 28, 2021

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60T2201/16
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A lane change by a motor vehicle is detected in a first variant, such that a lateral-acceleration variable representing the lateral acceleration of the vehicle and/or a yaw variable representing the yaw velocity is ascertained; the change, as a function of time, of the lateral-acceleration variable and/or of the yaw variable is formed; and a lane change is detected when the change as a function of time exceeds a specifiable threshold value. A second variant provides that speed variables are determined which represent the rotations of at least two wheels; a velocity variable is ascertained representing the longitudinal vehicle velocity; the difference is determined between the speed variable of the fastest rear wheel and the velocity variable; and a curve and/or a lane change is detected when a specifiably large difference exists for a time duration of specifiable length.