| 摘要 |
PCT No. PCT/DE95/01615 Sec. 371 Date Oct. 28, 1996 Sec. 102(e) Date Oct. 28, 1996 PCT Filed Nov. 21, 1995 PCT Pub. No. WO96/18908 PCT Pub. Date Jun. 20, 1996Methods for recognizing a malfunction of a rotary speed sensor, for instance a wheel-speed sensor in an ABS system, are proposed; on the basis of the signals of the rotary speed sensor, wheel speeds are ascertained, and from them, filtered wheel speeds and filtered wheel speed changes are ascertained. By comparing filtered and unfiltered variables and by plausibility investigations, sensor errors and in particular absence of the sensor signal are detected.
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