SAFETY DEVICE FOR MOVING PARTS

专利名称：SAFETY DEVICE FOR MOVING PARTS发明人：LILL, ANTON,GAKENHOLZ,

WERNER,PHILIPPS, WERNER

申请号：EP949285.0申请日：19940830公开号：EP0717885A1公开日：19960626

摘要：PCT No. PCT/EP94/02868 Sec. 371 Date May 15, 1996 Sec. 102(e) Date May 15,1996 PCT Filed Aug. 30, 1994 PCT Pub. No. WO95/07568 PCT Pub. Date Mar. 16, 1995Anappliance which, through motor-driven operation, is movable toward a closing edge, inparticular, for use with window regulators and sliding roofs of automotive vehicles. Forthis purpose, the number of revolutions of the motor is permanently detected, with thenumber of revolutions of the motor being measured in successive measuring intervals.The number of revolutions is to be a measure of the force acting on the pane.Respectively the last four measured values are detected in a sliding register and aresubjected to evaluation. For this purpose, first a start-up value is detected. The start-upvalue respectively is the third last measured value ni-3 if the difference D between thecurrent measured value and the third last measured value does not exceed a

predetermined differential threshold Dmax. For, in that case, the start-up value remainsunchanged. Subsequently, the difference A is formed between the start-up value and thecurrent value ni. If the latter is above a predetermined response threshold Amax, theanti-clamping system responds. This means that the driving motor is turned off and,optionally, is inverted in the direction of rotation thereof. More specifically, the forces

acting on the pane are successively integrated from one measured interval to the next aslong as there is some sort of increase from one measured interval to the next. As soon asthe integration value A reaches the response threshold Amax, the anti-clamping systemresponds. In this way a sensitive and rapidly responding protection against clamping isrealized, wherein error signals based on fluctuations in the frictional resistance of thepane guide are suppressed.

申请人：ITT AUTOMOTIVE EUROPE GMBH

地址：Guerickestrasse 7 D-60488 Frankfurt am Main DE

国籍：DE

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