Patent · US Expired

Method and device for programming a controller, in particular in a motor vehicle

US6490491B1 · kind B1 · utility

11Cited by

9References

10Claims

0Family size

Assignee

Mannesmann VDO AG · DE

Inventors

Stefan Hartmann · Eggolsheim, DE
Kai Volkmar · Schwieberdingen, DE

Key dates

Filing date	Oct 28, 1999
Grant date	Dec 3, 2002
Priority date	—
Expiry date	Oct 28, 2019

Classification

Technology area (CPC G)Physics
CPC primaryG05B2219/2637
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method for programming a controller, in particular in a motor vehicle, which is switched from the operating mode to the programming mode by a signal which is supplied externally to the controller. In a method which ensures adequate protection against unauthorized reprogramming of the controller and is nevertheless simple to handle, the external signal is used to produce switching information in a programmable read only memory, which stores at least one operating program and/or data (which is updated at predetermined intervals) for the controller and causes the changeover to the programming mode when the controller is activated.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.