Data processing: generic control systems or specific application – Generic control system – apparatus or process – Having protection or reliability feature
Reexamination Certificate
2001-10-27
2004-10-26
Paladini, Albert W. (Department: 2125)
Data processing: generic control systems or specific application
Generic control system, apparatus or process
Having protection or reliability feature
C711S161000, C701S051000
Reexamination Certificate
active
06810292
ABSTRACT:
The invention concerns a method for nonvolatile storage of at least one operating data value of an electric motor which comprises a microprocessor or microcontroller, hereinafter called a microprocessor, that controls its commutation, and a nonvolatile memory. It furthermore concerns a motor for carrying out such a method.
It is an object of the invention to make available a method of the kind cited initially, and a corresponding electric motor.
This object is achieved by a method according to claim
1
. The result is that the microprocessor responsible for commutation is occupied with further useful operations; namely with the updating of the at least one operating variable; and that said variable needs to be transferred, only at appropriate time intervals, to the nonvolatile memory. Fractions of an hour are, for example, a suitable time interval. The transfer can thus take place relatively infrequently, and therefore does not require a great deal of calculation time. Good accuracy of the data saved in the nonvolatile memory is nevertheless obtained, since electric motors usually run uninterruptedly for a long period during which their operating data change only slightly.
A further preferred approach to achieving the object is evident from a method according to claim
2
. Because the at least one operating variable is updated in the time intervals between the commutation operations, the microprocessor is optimally utilized.
Another way of achieving the stated object is evident from the subject matter of claim
9
.
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Hornberger Jörg
Jeske Frank
Karwath Arno
Rappenecker Hermann
Cabrera Zoila
ebm-papst St. Georgen GmbH & Co. KG
Oliver, Esq. Milton
Paladini Albert W.
Ware Fressola Van Der Sluys & Adolphson LLP
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