Control for a motor vehicle with an automotive transmission and a smart gear change unit

US6148256A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Friedrich Graf · Eggenfelden, DE
• Joachim Schäfer · Darmstadt, DE
• Kai Storjohann · Regensburg, DE
• Michael Ulm · Alteglofsheim, DE

Key dates

• Filing date: Feb 26, 1996
• Grant date: Nov 14, 2000
• Expiry date: Feb 26, 2016

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H2061/1208
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A control for a motor vehicle includes a transmission control and an engine control which are connected to one another through a communication channel. Functional units of the transmission control which are dependent on data of an engine and of a chassis of the motor vehicle, so-called engine-specific and chassis-specific functional units, are integrated into the engine control. Functional units having a function which is dependent on data of the transmission, so-called transmission-specific components, are contained in a computer-controlled gear shifting configuration. Data which are necessary for controlling the transmission are exchanged between the engine control and the gear shifting configuration through the communication channel 6. A shift point selection control, which can be constructed as a fuzzy control, is contained in the engine control.