Continuous correction for steering wheel angle offset

US8571758B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Willy Klier · Schwäbisch Gmünd, DE
• David Neil VanderLugt · Northville, US

Key dates

• Filing date: Oct 12, 2011
• Grant date: Oct 29, 2013
• Expiry date: Jan 18, 2032

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60T2260/02
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A system and method of continuously updating a steering wheel angle offset value to adapt to changing road conditions. A vehicle control system receives a plurality of vehicle parameter values each from a different vehicle sensor. The system then calculates a plurality of observed steering angle values, each using a different calculation method based on one or more of the plurality of vehicle parameter values. The plurality of observed steering angle values are then used to calculate a vehicle steering angle. A steering wheel angle offset value is then calculated based on the steering wheel angle and the calculated vehicle steering angle. The steering wheel angle offset value and the steering wheel angle are used to control the vehicle's steering system.