Process for optimizing program parts for motor vehicle controllers

US5970251A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Jurgen Zimmermann · Salzgitter, DE
• Uwe Kleinschmidt · Lompoc, US
• Martin Wagener · Braunschweig, DE
• Udo Schulz · Gießen, DE
• Wolfgang Krampe · Renningen, DE

Key dates

• Filing date: Dec 13, 1996
• Grant date: Oct 19, 1999
• Expiry date: Dec 13, 2016

Classification

• Technology area (CPC G): Physics
• CPC primary: G05B19/0426
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A process for optimizing data and/or program parts for programmed controllers that can be used, e.g., in motor vehicle controllers. In this process, the controller is connected to an external application device via an interface. Changes in the data and/or program parts to be optimized are entered with the help of the application device. This process is characterized in that, at the beginning of the optimizing process, the data and/or program parts are loaded into the data and/or program read-write memory (e.g., RAM) of the controller. In addition, the process is characterized in that specific changes are made in the control program and/or in the memory and/or register locations of the controller to cause the microprocessor of the controller to access the corresponding data and/or program parts in the data and/or program read-write memory (e.g., RAM) instead of accessing the data and/or program parts in the data and/or program read-only memory (e.g., flash EPROM). For a controller to be used in this process, the controller is provided with a decoder circuit that performs a switch when the microprocessor accesses a certain address or a certain address area. As a result of this switch…