Method and device for controlling a vehicle drive unit

US6125322A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Hubert Bischof · Lambach, DE
• Martin Streib · Leinfelden, DE

Key dates

• Filing date: Nov 10, 1997
• Grant date: Sep 26, 2000
• Expiry date: Nov 10, 2017

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02D41/266
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A method and an arrangement for controlling a drive unit of a vehicle are suggested. In this method, the control functions for the power of the drive unit and the monitoring of these control functions are carried out by a single microcomputer. A monitoring module, which is separate from the microcomputer, is provided for checking the monitoring functions. The monitoring module transmits test signals to the microcomputer at a given time. The microcomputer then computes the monitoring function on the basis of test data. The result of the computation is transmitted to the monitoring module which checks the operability of the monitoring function in the microcomputer by making a comparison to stored values.