| 摘要 |
A method for providing a high-resolution angle mark signal comprises the detection of a low-resolution angle mark signal and of a revolution trigger. Based on the low-resolution angle marks, angle marks are generated, subsequently, of a frequency that is increased by a multiplication factor, which can be preset. In order to achieve a precise multiplication of the crank angle signal even at highly dynamic speed changes, whereby with a high level of probability only a negligible deviation exists between the generated output marks and their theoretically correct positions, the high-resolution output angle marks generated since the occurrence of the revolution trigger are counted continually, and this counted value is compared, respectively, upon the incoming of a new input angle mark to the value that is calculated by counting the input angle marks since occurrence of the revolution trigger and multiplication by a multiplication factor, and the frequency of the output angle marks is corrected as of the new input angle mark as a function of this deviation. |
