Method and device for monitoring a torque of a drive unit of a vehicle

US6964192B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Torsten Bauer · Leinfelden, DE
• Stefan Keller · Mainaschaff, DE

Key dates

• Filing date: Sep 12, 2002
• Grant date: Nov 15, 2005
• Expiry date: Sep 25, 2022

Classification

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

Abstract

A method and an arrangement for monitoring a torque of a drive unit (1) of a vehicle (5) are suggested. The method and arrangement make possible a reliable detection of a fault condition for an essentially constant actuation of an operator-controlled element. The torque, which is to be monitored, is compared to a permissible torque. The permissible torque is readjusted to the torque, which is to be monitored. A fault is detected when the torque, which is to be monitored, deviates from the permissible torque by more than a first pregiven value. The fault is only detected for the case wherein a position of an operator-controlled element, especially an accelerator pedal position, lies within a pregiven tolerance range at least since a first pregiven time.