Method for determining a tilt angle of a vehicle

US7463953B1 · kind B1 · utility

Assignees

• VOLKSWAGEN AKTIENGESELLSCHAFT · DE
• VOLKSWAGEN OF AMERICA, INC. · US

Inventors

• Jonathan Lee · Puyallup, US
• Daniel Rosario · Santa Cruz, US
• Arne Stoschek · Palo Alto, US
• Knut Sanny · Wendeburg, DE

Key dates

• Filing date: Jun 22, 2007
• Grant date: Dec 9, 2008
• Expiry date: Jun 22, 2027

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60W2520/18
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A method for determining a tilt angle of a vehicle includes measuring accelerations of a vehicle in directions along a longitudinal axis, a transverse axis, and a vertical axis of the vehicle. A current tilt angle of the vehicle is calculated as a function of the measured accelerations. A magnitude-compensated tilt angle is calculated as a function of the current tilt angle, of a preceding tilt angle, and of the magnitude of the vector sum of the measured accelerations. A gyroscopically stabilized magnitude-compensated tilt angle is calculated as a function of the current tilt angle, of a preceding tilt angle, of the magnitude of the vector sum of the measured accelerations, and of a change in the tilt angle over a given time period calculated from angular rate data provided by a gyroscope.