METHOD FOR ADJUSTING THE POWER OF A VACUUM CLEANER FAN, CONTROL SYSTEM FOR IMPLEMENTING THE METHOD, AND VACUUM CLEANER HAVING SUCH A CONTROL SYSTEM
First Claim
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1. A method of adjusting the power of a vacuum cleaner fan, the method comprising:
- tapping off a signal via a vacuum switch having a single switching point;
filtering the tapped off signal to obtain a resulting signal, the resulting signal being a measure of the vacuum pressure created by the vacuum cleaner fan; and
using the resulting signal as a controlled variable for adjusting the fan power with an electronic control system.
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Abstract
A method of adjusting the power of a vacuum cleaner fan comprising a vacuum switch having a single switching point includes using the vacuum switch to create a signal indicative of a vacuum pressure created by the vacuum cleaner fan. The method also includes filtering the signal to obtain a resulting signal, the resulting signal being a measure of the vacuum pressure. The method further includes using the resulting signal as a controlled variable for adjusting the fan power with an electronic control system.
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Citations
15 Claims
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1. A method of adjusting the power of a vacuum cleaner fan, the method comprising:
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tapping off a signal via a vacuum switch having a single switching point; filtering the tapped off signal to obtain a resulting signal, the resulting signal being a measure of the vacuum pressure created by the vacuum cleaner fan; and using the resulting signal as a controlled variable for adjusting the fan power with an electronic control system. - View Dependent Claims (2, 3, 4, 5)
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6. An control system for a vacuum cleaner with a vacuum cleaner fan comprising:
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a vacuum switch having a single switching point, the vacuum switch being configured to provide a tapped off signal; a filter configured to filter the tapped off signal to obtain a resulting signal, the resulting signal being a measure of the vacuum pressure created by the vacuum cleaner fan; and a controller configured to use the resulting signal as a controlled variable for adjusting the fan power. - View Dependent Claims (7, 8, 9, 10)
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11. A vacuum cleaner comprising:
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a vacuum cleaner fan; and an electronic control system comprising; a vacuum switch having a single switching point, the vacuum switch being configured to provide a tapped off signal; a filter configured to filter the tapped off signal to obtain a resulting signal, the resulting signal being a measure of the vacuum pressure created by the vacuum cleaner fan; and a controller configured to use the resulting signal as a controlled variable for adjusting the fan power. - View Dependent Claims (12, 13, 14, 15)
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Specification