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Distributed control system for an elevator system

  • US 8,230,977 B2
  • Filed: 07/08/2008
  • Issued: 07/31/2012
  • Est. Priority Date: 08/07/2007
  • Status: Active Grant
First Claim
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1. An elevator system having an elevator shaft and at least one elevator cab which can move in the elevator shaft, the elevator system comprising:

  • a distributed control system having a first evaluation unit, respectively associated with the at least one elevator cab, and has at least one second evaluation unit, associated with the elevator shaft;

    a bus link connecting the first evaluation unit and the at least one second evaluation unit to one another;

    the first evaluation unit comprising a set of limit curves containing limit curves for the actuation of a braking device and/or a safety gripping device that are calculated and scaled in line with a current operating state, the first evaluation unit being configured to trigger the safety gripping device or the braking device if one of the limit curves is exceeded; and

    wherein defined ends of the limit curves limit a scope of movement for the at least one elevator cab.

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