| 摘要 |
PROBLEM TO BE SOLVED: To provide a wheel-turning traveling influence information detection device of a vehicle which can create a correlation indicating a high-frequency component of a rotational speed variation pattern, and a change of a signal in a narrow pulse width, and thereby can highly accurately estimate fine changes of a tire and a road face.SOLUTION: A wheel-turning traveling influence information detection device of a vehicle comprises a rotation sensor 2 which detects a rotation signal, and a signal processing unit 3. The signal processing unit 3 corrects at least one of a pitch error of an encoder, an attachment error, and a sensor error about the rotation signal by using a sensor error correction processing part 4. A rotational speed variation pattern which is synchronized with rotation is calculated from the corrected rotation signal by a rotational speed variation pattern extraction processing part 5. A correlation between a maser pattern which is extracted from a reference rotational speed variation pattern at a prescribed pulse number, and the rotational speed variation pattern by a pattern matching calculation processing part 6. A tire state and a road face state are estimated by a tire/road face state estimation part 7 by using the correlation and the rotational speed variation pattern.SELECTED DRAWING: Figure 1 |
