Method for triggering a switching function

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Details

123337, 3644241, G05B 1302, F02D 4102, F02D 1102

Patent

active

048498963

ABSTRACT:
The invention is directed to a method for triggering switching functions in which the latter are triggered when the position signal emitted by a position transmitter exceeds or falls below a predeterminable signal level, the position signal being corrected and scaled in a signal-processing arrangement. A precise, long-term stable correspondence of the predeterminable signal level to a definite position of the position transmitter is assured in that the end values of the position signal corresponding to the two end stops are ascertained in a learning algorithm after each time the position transmitter is put into operation. The method is particularly suitable for triggering switching functions in a motor vehicle which has a position transmitter as a desired-value transmitter of an engine performance control or regulating system, the position transmitter being mechanically connected to the accelerator pedal of the vehicle. The triggering of the kick-down function, for example, for controlling the transmission of the vehicle occurs after a position of the accelerator pedal has been passed, the position always being located the same spacing ahead of the full-load stop. Mechanical tolerances and aging processes have no influence on this correspondence.

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