Method for adjusting the operating energy input of a motor

US6119654A · kind A · utility

Assignee

• Daimlerchrysler AG · US

Inventors

• Christian Heiselbetz · Echterdingen, DE
• Dieter Kalweit · Schorndorf, DE
• Thomas Klaiber · Waiblingen, DE
• Uwe Kleinecke · Winnenden, DE
• Kurt Maute · Sindelfingen, DE

Key dates

• Filing date: Feb 22, 1999
• Grant date: Sep 19, 2000
• Expiry date: Feb 22, 2019

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02D2250/18
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a method for adjusting the drive performance of a motor vehicle having an internal combustion engine with spark ignition. A set torque is determined on the basis of a desired torque which is input by the driver, and possibly additional desired torque requirements. The desired torque is achieved by influencing the load and/or the ignition angle. For this purpose, the invention distinguishes between three operating states. In a first operating state, the torque is adjusted with optimum efficiency by load regulation; in a second operating state the torque adjustment is made as rapidly as possible by an additional ignition angle adjustment. Finally, in the third operating state the torque specification for load regulation is established and the remaining torque adjustment is made by an additional ignition angle adjustment.