Procedure for controlling a motor vehicle drive unit

US5576961A · kind A · utility

Assignee

• Temic Telefunken Microelectronik · DE

Inventors

• Michael Genzel · Roßtal, DE
• Rodolfo Moller · Nürnberg, DE
• Armin Tonn · Roth, DE
• Willem Kuster · Ingolstadt, DE
• Andreas Leicht · Gaimersheim, DE

Key dates

• Filing date: Dec 8, 1994
• Grant date: Nov 19, 1996
• Expiry date: Dec 8, 2014

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H2061/0096
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A procedure to control the drive unit in motor vehicles wherein: the maximum engine performance characteristic is determined; as a minimum engine performance characteristic, a reference performance characteristic is specified by how drive resistance depends on vehicle speed at a medium payload of the motor vehicle; above the reference performance characteristic, a first performance characteristic which is dependent on actual driving speed is defined and allocated a minimum assessment value; between this first performance characteristic and the maximum engine performance characteristic, a second performance characteristic which is also dependent on actual driving speed is defined and allocated a maximum assessment value; the current engine performance is determined; current assessment values are determined by comparing current engine performance to the first performance characteristic and the second performance characteristic; the current assessment values, as continuously determined, are filtered over time in this way, filtered assessment values are obtained; and these filtered assessment values are used to select drive unit control parameters, or parameter sets, which then are use…