Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Reexamination Certificate
2006-04-25
2006-04-25
Wu, Daniel (Department: 2632)
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
C340S451000, C340S452000, C340S454000, C188S00111E, C188S00111E, C188S071700
Reexamination Certificate
active
07034673
ABSTRACT:
Method for monitoring an electrohydraulic braking system. The volume uptake is determined by the elasticity within the wheel brake that is subjected to certain fluctuations, on the one hand, and to a much greater degree by the clearance that is present, on the other hand. To make a reliable statement relating to the air charge, an estimation of the current clearance is first made, taking three ranges into consideration. If there is a normal clearance, a top evaluation threshold is taken as a basis, which assumes the clearance lies at the upper end of the normal range. When said evaluation threshold is exceeded, an alarm is triggered. If the clearance is assumed to lie at the bottom limit of the normal range, a bottom evaluation threshold applies, however, an alarm is only triggered in this case this situation has occurred several times in succession.
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Search Report of the German Patent Office for Appln 10244762.4.
Buschmann Gunther
Schmidt Robert
Ullrich Thorsten
Centinental Teves AG & Co., OHG
Tang Son
Wu Daniel
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