Patent Number: 6,490,491

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

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.

Inventors: Hartmann; Stefan (Hahnheim, DE), Volkmar; Kai (Schwieberdingen, DE)

Assignee: Mannesmann VDO AG

International Classification: F02D 41/24 (20060101); F02D 41/26 (20060101); G05B 19/04 (20060101); F02D 41/00 (20060101); G05B 19/042 (20060101); G05B 019/42 ()

Expiration Date: 12/03/2011