Method for evaluation of the self-diagnosis of a controller in a

Details Method for evaluation of the self-diagnosis of a controller in a Method for evaluation of the self-diagnosis of a controller in a

1995-05-24

1997-09-23

Hofsass, Jeffery

Communications: electrical

Condition responsive indicating system

With particular system function

340458, 340459, 340438, 340439, 364188, 364146, 364424045, 364424035, G08B 2900

Patent

active

056709390

ABSTRACT:
The invention provides a method for evaluating the self-diagnostic system of a controller in a motor vehicle having a control panel with a push-button switch with automatic return, and additional input elements and having a signalling element which is suitable for emitting a flashing code. In order to emit a structured flashing code of fault numbers, the range of possible faults which can be diagnosed is divided into fault classes, the faults within a fault class being assigned fault numbers which can be emitted, separated on the basis of fault classes, by flashing code. A specific fault class is selected by the operator by setting the input elements to a specific position combination which is assigned to the fault class, and operation of the push-button switch (for example, the recirculation push-button in the case of a heating controller).

REFERENCES:
patent: 3964302 (1976-06-01), Gordon et al.
patent: 4635030 (1987-01-01), Rauch
patent: 4926352 (1990-05-01), Staffe
patent: 5034894 (1991-07-01), Abe
British Search Report dated Jul. 26, 1995.
"Moglichkeiten komfortabler Testgerate zur Auswertung der Eigendiagnose von Steuergeraten im Kraftfahrzeug," Dipl.--Ing. D. Nemec, VDI Report No. 687, Sep. 1988, pp. 365-368.

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