Acceleration-based safety monitoring of a drive of a motor vehicle

US8548712B2 · kind B2 · utility

Assignee

• Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

• Florian Oesterreicher · Munich, DE
• Juergen Binder · Leutenbach, DE

Key dates

• Filing date: May 9, 2012
• Grant date: Oct 1, 2013
• Expiry date: May 9, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/40
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

An acceleration-based method and device for the safety monitoring of a drive is provided. In the method a setpoint torque is calculated in a safety function as a function of the position of the accelerator pedal. An expected vehicle acceleration is determined, as a function of the setpoint torque, in the safety function. An actual vehicle acceleration is determined, preferably by an acceleration sensor. A fault situation may be detected by comparing the actual vehicle acceleration and the expected vehicle acceleration. A device, preferably included in the vehicle electronics, is configured to implement the acceleration-based method.