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Data storage of construction machine and data processor

  • US 6,339,737 B1
  • Filed: 07/02/1999
  • Issued: 01/15/2002
  • Est. Priority Date: 07/07/1998
  • Status: Expired due to Term
First Claim
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1. A data storage device for a construction machine having control means which receives a detection signal of detection means mounted on the construction machine and, on the basis of the received detection signal of the detection means, generates and outputs a drive control signal for controlling to drive the construction machine, wherein the detection signal of the detection means is a signal indicative of a pump discharge pressure and, wherein the data storage device comprises:

  • operation means which previously determines each level for indicating a content of the detection signal of the detection means, judges whichever level the detection signal of the detection means to be input to the control means belongs to at every predetermined sampling time and adds +1 to a count value of the level to which the detection signal is judged to belong; and

    storage means for storing values counted at every level by the operation means.

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