Method for monitoring a rotational angle sensor on an electrical machine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jul 30, 2002
Grant Date -
N/A
app pub date -
Jun 14, 2000
filing date -
Jun 18, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for monitoring a rotational angle sensor on an electrical machine. It is desired to provide a method that enables fault detection at both high speeds and low speeds of the rotor. The electrical power of the machine is measured and a power value is estimated using the output signal of the rotational angle sensor, a residual being formed from the measured power and the estimated power and the time curve of the residual being monitored.
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Family
Country | kind | publication No. | Filing Date | Type | Sub-Type |
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- DANFOSS DRIVES A/S
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Thybo, Claus | S.o slashed.nderborg, DK | 46 | 519 |
# of filed Patents : 46 Total Citations : 519 |
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Patent Citation Ranking
- 75 Citation Count
- G01R Class
- 96.74 % this patent is cited more than
- 23 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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