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Determining current engine revolution rates involves sensing gear wheel, using first method for revolution rates greater than definable threshold, second method for rates less then threshold
Determining current engine revolution rates involves sensing gear wheel, using first method for revolution rates greater than definable threshold, second method for rates less then threshold
The method involves a sensor (5a) sensing a gear wheel (1) connected to the engine's crankshaft (6) with regularly spaced teeth that produce a signal on passing the sensor for evaluation by the engine controler to determine the revolution rate from the interval between definable signal edges. A first method is used for revolution rates greater than a definable threshold and a second method for revolution rates less then the threshold. Independent claims are also included for the following: an arrangement for determining current motor revolution rates.
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