Resolution increase in the rotational speed signal between rotational speed pulses
AssigneeContinental Teves AG & Co. oHG
InventorsWolfgang Jöckel, Timo Dietz, Bernhard Schmid, Roland Hilser
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AssigneeContinental Teves AG & Co. oHG
InventorsWolfgang Jöckel, Timo Dietz, Bernhard Schmid, Roland Hilser
Estimating the term…
A method for producing sensor information depends on a rotational speed, using a rotational speed sensor which is adapted to output rotational speed pulses in predetermined angular positions of a physical sensor field that rotates at the rotational speed. In order to increase resolution, a digital angle signal each is determined between the pulses. A defined number of most significant bits of said angle information is output to determine the rotational speed so that the interval between two pulses is subdivided into a defined number of subintervals. An angle value which can be unambiguously interpreted by means of the sinusoidal signal can be determined from the cosine signal by using two phase shift sinusoidal signals and an arccos function. The device optionally outputs the angle signal below a threshold value and an impulse signal above the threshold value to determine speed.
A method of generating sensor information of a rotational speed sensor coupled to a wheel of a vehicle, the method comprising:
A rotational speed sensor comprising:
Dependencies are inferred from the claim text.