EP0636340A1 - Staubsauger mit Mitteln zur Erkennung des Bodens - Google Patents

Staubsauger mit Mitteln zur Erkennung des Bodens Download PDF

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Publication number
EP0636340A1
EP0636340A1 EP94202165A EP94202165A EP0636340A1 EP 0636340 A1 EP0636340 A1 EP 0636340A1 EP 94202165 A EP94202165 A EP 94202165A EP 94202165 A EP94202165 A EP 94202165A EP 0636340 A1 EP0636340 A1 EP 0636340A1
Authority
EP
European Patent Office
Prior art keywords
vacuum cleaner
soil
signal
sensor
pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP94202165A
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English (en)
French (fr)
Inventor
Gilles Delmas
Michel Courdille
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Laboratoires dElectronique Philips SAS
Koninklijke Philips NV
Original Assignee
Laboratoires dElectronique Philips SAS
Koninklijke Philips Electronics NV
Philips Electronics NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Laboratoires dElectronique Philips SAS, Koninklijke Philips Electronics NV, Philips Electronics NV filed Critical Laboratoires dElectronique Philips SAS
Publication of EP0636340A1 publication Critical patent/EP0636340A1/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2894—Details related to signal transmission in suction cleaners
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2805—Parameters or conditions being sensed
    • A47L9/281—Parameters or conditions being sensed the amount or condition of incoming dirt or dust
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2805—Parameters or conditions being sensed
    • A47L9/2826—Parameters or conditions being sensed the condition of the floor
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2836—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means characterised by the parts which are controlled
    • A47L9/2842—Suction motors or blowers
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2836—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means characterised by the parts which are controlled
    • A47L9/2847—Surface treating elements

Definitions

  • the invention finds its application in the field of manufacturing of domestic or industrial vacuum cleaners.
  • This known vacuum cleaner has a drawback in that the soil detector is a current detector linked to the electric nozzle brush.
  • the detection of peaks can only be made when a brush is systematically used in the nozzle, that is to say is both present and in rotation.
  • the systematic use of a brush is not practical.
  • the electric brush tends to scatter the crumbs instead of attracting them to the nozzle when the floor is a smooth covering or a level carpet.
  • the user wants the brush to be out of service for smooth floors and level carpets. Therefore, the device described is only useful for distinguishing thick carpets from medium carpets, and in this case, it appears that the levels of the current peaks are not different enough to make this distinction in a correct manner.
  • the object of the present invention is to provide a vacuum cleaner which makes it possible to obtain information relating to the ground, independent of the putting into service of the brush.
  • this object is achieved by means of a vacuum cleaner provided with the elements described in the preamble and further characterized in that the first sensor, called the soil sensor, is a pressure sensor which provides a signal as a function of the pressure of the air measured at a first measurement point on the path of the suction air flow of the vacuum cleaner, this signal having pseudo-periodic oscillations, the maxima and minima correspond for the outward and for the others to the returns of the nozzle on the ground during the cleaning operation, this signal presenting a difference in amplitude, between these maxima and minima, which varies according to the class of the cleaned soil, and in that the calculation means determine the class of the cleaned soil, as a function of this difference in amplitude.
  • the first sensor called the soil sensor
  • This vacuum cleaner has the advantage that soil detection is very good, because it results from a sensor whose measurement is directly influenced by the action of the soil on the suction air flow and does not have to be taken taking into account parameters related to motors or power supplies.
  • this vacuum cleaner has the advantage that the measurement does not depend on the compulsory commissioning of the electric brush located in the nozzle, since the measuring point of the sensor is located on the path of the suction flow. So detection can be done for all floors, even hard floors cleaned without brushing.
  • this vacuum cleaner has the advantage of better longevity than the known device, because in general the brush motor of the nozzle has a shorter lifespan than the main motor of the vacuum cleaner; therefore the device according to the invention, which is not linked to the brush motor, can last longer than the known device.
  • this vacuum cleaner is characterized in that, the signal from the first pressure sensor called the soil sensor having a so-called average amplitude, between the amplitudes of the maxima and minima, which varies according to the class of the soil cleaned, the calculating means determine the class of the soil cleaned jointly as a function of the difference in amplitude between maximum and minimum and of said average amplitude of the signal from the soil sensor.
  • this vacuum cleaner has the advantage that the detection of different floors is further improved.
  • the present invention also aims to provide a vacuum cleaner which has a better adjustment of the suction pressure according to the class of the soil, than the known vacuum cleaner.
  • this object is achieved by means of a vacuum cleaner characterized in that it comprises setpoint means for determining, as a function of the class of the soil calculated, a setpoint for said average amplitude of the signal of the first pressure sensor, so as to adjust the suction pressure appropriately according to the calculated soil class.
  • This vacuum cleaner has the advantage that the detection is improved, the set value for said average amplitude of the signal from the first pressure sensor can be determined more precisely.
  • this vacuum cleaner is characterized in that it comprises control means for determining a value for adjusting the supply voltage of the fan motor to supply the electric power which makes it possible to obtain the set value for the average amplitude of the signal from the first pressure sensor.
  • This vacuum cleaner has in particular an extremely important advantage over the known vacuum cleaner: in fact, according to the invention, both the detection of soil and the adjustment of the suitable suction pressure according to the detected soil are carried out by means of a single sensor. So not only according to the invention the detection is more precise, the adjustment of the working pressure is more precise, but also these results are achieved with great economy of means. It is recalled that in the known vacuum cleaner, the current sensor intervened only in the detection of soil, and the pressure sensor located at the outlet of the dust chamber intervened only in the adjustment of the working pressure. Two sensors were therefore necessary to fulfill the two functions. The vacuum cleaner according to the invention achieves these two functions with one sensor instead of two.
  • the present invention also aims to optimize the detection of the cleaned floor and the adjustment of the suction pressure level.
  • this object is achieved by means of a vacuum cleaner characterized in that the measurement point of the first pressure sensor called the soil sensor is located at the entrance to the dust chamber.
  • This vacuum cleaner then has many advantages. First of all, the detection accuracy is greatly improved, since the measurement is influenced by the action of the ground, practically without intermediaries, and in any case without damping.
  • This vacuum cleaner has the advantage of using, for this pretreatment, only simple calculation means, with additions or subtractions or tests, and not multiplications or divisions. These calculation means are therefore inexpensive and easy to implement to obtain a device at low cost.
  • this vacuum cleaner is characterized in that, the calculation means further comprise a classifier deduction block, which receives as input the first and second signals from said preprocessing means, and which outputs corresponding classes , according to predetermined rules, on the detection of several different surface states of the floor to be cleaned.
  • a classifier deduction block which receives as input the first and second signals from said preprocessing means, and which outputs corresponding classes , according to predetermined rules, on the detection of several different surface states of the floor to be cleaned.
  • this vacuum cleaner is possibly characterized in that the classifier deduction block provides two classes as output corresponding to the detection of two different surface states of the floor to be cleaned which are a "CARPET” state and a "SOL” state HARD and SMOOTH.
  • This vacuum cleaner has the advantage of using only very simple means of deduction which provide the results very quickly.
  • this measure improves the robustness of the soil classification.
  • this measurement can be used to provide the fill rate of the dust chamber.
  • this vacuum cleaner is characterized in that it further comprises an electric brush disposed in the nozzle and means for adjusting the electric power of the motor of this brush, called the auxiliary motor as a function of the class of the soil. calculated.
  • this vacuum cleaner is characterized in that the means for adjusting the power of the auxiliary motor include a setpoint block for determining, by direct conversion according to the detected soil class, a voltage adjustment value supply of the auxiliary motor to provide the power which enables the brush placed in the nozzle to be put into service or not, according to the detected soil class.
  • This vacuum cleaner has the advantage that starting and adjusting the auxiliary brush motor is completely independent of the adjustment of the main motor depending on the soil.
  • a vacuum cleaner for domestic or industrial use comprises a vacuum cleaner body 1, provided with means, not shown, to be easily moved on a floor to be cleaned, for example wheels or pads, or a combination of these.
  • the fan housing 20 is made dustproof from the dust chamber by a filter F1 detachably disposed in the communication opening of the dust chamber 10 with this housing 20.
  • the air outlet 11 is also protected dust by a filter F2 detachably disposed between the blower side 23b of the fan and this air outlet 21.
  • a dust bag 12 forming a filter is removably placed in the dust chamber.
  • This bag has an opening directed towards the air inlet 11, and is positioned as dust-tight as possible behind this air inlet 11.
  • the vacuum cleaner further comprises a hose generally formed of a flexible part and a rigid extension terminated by a nozzle.
  • the end of the pipe opposite the nozzle is coupled with the opening of the air inlet 11.
  • the operation of the vacuum cleaner includes the connection of the fan motor to an alternating voltage source to create, by the action of the fan, a depression in the nozzle, so as to suck up the dust, crumbs, small debris and others which become found on floors to be cleaned.
  • the action of cleaning includes actuation of the rigid part of the hose by the user, according to a back-and-forth movement of the nozzle on the floor to be cleaned, forming back-and-forth movements of the nozzle on the floor in a pseudo-periodic manner, the pseudo-period a round trip being of the order of 0.5 seconds, and generally less than 2 seconds.
  • each "go" of the nozzle corresponds in this pseudo-periodic variation, to a maximum of the amplitude of the pressure
  • each "return” of the nozzle corresponds to a minimum of the amplitude of the pressure in the vacuum cleaner hose.
  • the value of the pressure amplitude remains maximum throughout the duration of the "outward” operation, as well as the pressure amplitude remains minimum throughout the duration of the "return” operation ".
  • the pressure variation which corresponds to an abrupt change of direction of the nozzle on the ground, is abrupt.
  • the curve representing the amplitude of the pressure as a function of time has practically the form of a pseudo-periodic square signal.
  • the average amplitude of the pressure in the nozzle that is to say the average value of the amplitude measured between the maxima and minima of amplitude with respect to the zero pressure also depends strongly on the 'surface condition or type of soil to be cleaned.
  • This average amplitude is large when the nozzle is in the presence of a thick carpet: it decreases when the depth of the carpet decreases and it is at a minimum value, but not zero, when the nozzle is in the presence of hard ground.
  • This measurement of the variations in amplitude of the pressure which appear at each change of direction of the nozzle is carried out by means of a pressure sensor 14 whose measuring point 15 is disposed at the level of the air inlet 11, for example before the dust bag 12.
  • This pressure sensor can be a silicon sensor provided with a flexible tube 17, the end of which is brought to the measurement point 15.
  • the body of the sensor 14 itself can be fixed on a circuit board 29 disposed in the body 1 of the vacuum cleaner, outside the path of the air flow.
  • the body of the pressure sensor 24 can be fixed on a circuit board arranged in the body of the vacuum cleaner outside the path of the air flow.
  • the body of the pressure sensor 24 can for example be fixed on the same circuit board 29 as the body of the pressure sensor 14.
  • this second sensor 24 is coupled to the first sensor 14 to provide a measurement of the pressure difference to the dust chamber terminals. The difference between the average pressures which exist at the measurement point 15, at the inlet of the dust chamber, and at the measurement point 25, at the outlet of this chamber can be obtained in a simple manner.
  • the pressure sensor 24 is a sensor differential, and a T referenced 28 is applied to the flexible pipe which takes the pressure at the measurement point 15 to apply this pressure measured both on the sensor 14 inlet and on the sensor 24 outlet of the dust chamber.
  • the sensor 24 receives both the pressures at the measurement points 15 and 25.
  • the measuring point 25 may be on one side or the other of the dust filter F1, that is to say in fact, either at the outlet 23b of the dust chamber 10, in this dust chamber behind the dust bag 12, or else in position 23b between the filter F1 and the suction face of the fan 23 in the housing 20.
  • this pressure sensor 24 disposed at the outlet of the dust chamber is not essential for the adjustment of the working pressure of the vacuum cleaner, adjustment which will be described later.
  • This second pressure sensor 24 is according to the invention only intended to improve the robustness of the classification of the soil.
  • the differential pressure measurement can make it possible to deduce an indication of the filling rate of the dust chamber.
  • the curves of FIG. 3A and 3B illustrate the implementation of the detection by the two pressure sensors, respectively 14 and 24.
  • Curve C in FIG. 3B shows the pressure P in mbar measured by the sensor 14 at the measurement point 15 at the inlet of the dust bag as a function of the time t measured in seconds (s), and the curve D of this same FIG. 3B shows the pressure P in mbar measured by the sensor 24 at the measurement point 25 at the outlet of the dust bag in function of time t measured in seconds.
  • the parts C1 and D1 of curve relate to a cleaning condition where the nozzle undergoes back and forth on a ground provided with a thick carpet, with long strands, the parts C2 and D2 concern a condition of cleaning on medium thickness carpet, and parts C3 and D3 concern a cleaning condition on hard floor.
  • the difference in amplitude ⁇ P between the amplitude P2 of the maxima ⁇ 1, ⁇ 2, ⁇ 3 and the amplitude P1 of the minima ⁇ 1, ⁇ 2, ⁇ 3 is in the example illustrated by FIG.3B of the order of 8 mbar for a carpet, the pressure being measured at the inlet of the dust chamber.
  • Parts C3 and D3 which concern the conditions where the nozzle performs back and forth on hard ground show that the amplitude of the pressure is identical here for the back and forth. No variation in amplitude does not appear; there is neither maximum nor minimum. There is only a slight noise.
  • the curve A in FIG. 3A shows the pressure P in mbar measured by the sensor 14 at the measurement point 15 at the inlet of the dust chamber, as a function of the times t measured in seconds
  • the curve B of this same FIG.3A shows the pressure P in mbar measured by the sensor 24 at the measurement point 25 at the outlet of the dust chamber, as a function of the time t measured in seconds.
  • the parts A1 and B1 of curve relate to a condition where the dust chamber, for example provided with a dust bag, is empty, that is to say that the bag is clean and new.
  • Parts A2 and B2 of the curve relate to a condition where the dust bag shows a filling rate of approximately 50%. It can be seen from these curves that when the dust chamber fills, the pressure at point 15 at the inlet to the dust chamber decreases while the pressure at point 25 at the outlet from the dust chamber increases.
  • Parts A3 and B3 of the curve relate to the condition where the dust bag is full. It can be seen that the pressure at point 15 is minimum, while at point 25 it is maximum.
  • the maximum and minimum pressure corresponding to the back and forth of the nozzle are always well measurable on the curves, and especially on the curves A which correspond to the pressure measured at l front of the dust chamber.
  • the curves A and B of FIG. 1A show that a differential measurement of the average pressure can be carried out between the rear of the dust chamber, at measurement point 25, and the front of the dust chamber, at measurement point 15.
  • FIG. 2 represents the soil detection device which makes it possible, from measurements 16, of the pressure sensor 14 applied to the measurement point 15 situated at the entrance to the dust chamber, and as shown in FIG. 3B (curve C), to subsequently supply a signal for controlling the power of the main motor 22 of fan 23 and possibly of the auxiliary brush motor (not shown).
  • time windows T of a sufficient value, for example 2 seconds, during which, in operation of the vacuum cleaner, during a conventional cleaning operation, an average user performs at minus a change of direction of the nozzle between a round trip on the floor to be cleaned.
  • the soil sensor 14 has a measurement point 15 disposed in the body 1 of the device, and that its output signal 16 is not linked to the compulsory use of an electric brush in the nozzle.
  • this preprocessing block 30 The operations performed by this preprocessing block 30 are therefore very simple. These are only averages on the one hand, and tests on the other hand to first calculate the average amplitude PM of the pressure at the inlet of the dust bag, to then calculate the difference in average pressures (PM ' - PM) between the exit and the entry of the dust bag, and to also detect the maximum ⁇ 1, ⁇ 2, ⁇ 3 and minimum ⁇ 1, ⁇ 2, ⁇ 3 of pressure coinciding with the back and forth of the base and calculate the differences of amplitudes ⁇ P between these maxima and minima.
  • the classifier deduction block 40 therefore provides two possible outputs which correspond to two complementary classes, indicating the "carpet” state and the "hard floor” state.
  • the outputs can be:
  • the output level is +1 if the "CARPET" state is detected and is -1 otherwise.
  • the output level is +1 if the "HARD GROUND" state is detected and is -1 otherwise.
  • the output levels of the classification deduction block 40 can be brought to a processing stage which provides a binary output 41, such as for example the level of this signal 41 is 1 for the "CARPET” state detected, and is 0 for the "HARD GROUND” state detected.
  • the output 41 of the classifier deduction block 40 is carried on a setpoint block 50 which, by a direct conversion according to the soil, gives a setpoint 51 of the mean pressure amplitude PM which must be imposed at the inlet dust chamber, for proper cleaning of the detected floor.
  • this adjustment really only requires a single sensor, which is the inlet pressure sensor 14, in the example described, which allows both the detection of soil and the application of the pressure setpoint.
  • the second sensor 24 relates only to an improvement.
  • the vacuum cleaner known from the prior art made it essential to use two different sensors to perform these two functions. According to the invention, the two functions can be performed economically by a single pressure sensor.
  • the detection, and therefore the setting of the setpoint is made independently of the commissioning of an electric brush in the nozzle.
  • This medium pressure amplitude setpoint 51 is transferred to a controller 60 which compares the setpoint signal 51 with the medium pressure amplitude PM 32 existing at this time at the inlet of the dust chamber, and which provides a signal 61 to regulate the electric power of the main motor in such a way that the appropriate pressure setpoint is brought into or maintained at the entrance to the dust chamber.
  • the output 41 of the classifier deduction block 40 can be brought to a second setpoint block 70, which by a direct conversion as a function of the soil, gives a setpoint 71 of the motor power of an electric brush located in the nozzle.
  • the first setpoint block 50 can be a fuzzy setpoint block.
  • the output 41 of the classifier deduction block 40 may not be clear, that is to say may be between 0 and 1, instead of being 0 or 1.
  • fuzzy setpoint block 50 provides pressure values interpolated between 60 and 80 mB in the example cited above.
  • a fuzzy setpoint block 70 can also be used to supply the brush motor with an intermediate power between all and nothing.
  • the three inputs of the classifier neural network are then constituted by the three signals of output 31, 32, 33 calculated by the microprocessor 30, and the two outputs are: MAT and HARD FLOOR.
EP94202165A 1993-07-28 1994-07-25 Staubsauger mit Mitteln zur Erkennung des Bodens Withdrawn EP0636340A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9309276 1993-07-28
FR9309276 1993-07-28

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EP94202165A Withdrawn EP0636340A1 (de) 1993-07-28 1994-07-25 Staubsauger mit Mitteln zur Erkennung des Bodens

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009103585A1 (de) 2008-02-20 2009-08-27 BSH Bosch und Siemens Hausgeräte GmbH Vorrichtung zur automatischen saugleistungsregelung eines staubsaugers
CN106805841A (zh) * 2017-02-17 2017-06-09 江苏美的清洁电器股份有限公司 吸尘器
CN109567670A (zh) * 2018-11-21 2019-04-05 刘玉蓉 一种智能吸尘器
CN110863461A (zh) * 2019-11-22 2020-03-06 张思祺 一种智能保洁机器人

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Publication number Priority date Publication date Assignee Title
IN2014CN01063A (de) * 2011-08-23 2015-04-10 Koninkl Philips Nv
US9798328B2 (en) * 2014-10-10 2017-10-24 Irobot Corporation Mobile robot area cleaning
DE102016118248A1 (de) * 2015-10-30 2017-05-04 Vorwerk & Co. Interholding Gmbh Reinigungsgerät, insbesondere Haushaltsstaubsauger
WO2023224229A1 (ko) * 2022-05-16 2023-11-23 삼성전자주식회사 진공 청소기 및 그 제어 방법

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JPH027928A (ja) * 1988-06-28 1990-01-11 Matsushita Electric Ind Co Ltd 電気掃除機
EP0379680A1 (de) * 1989-01-21 1990-08-01 Interlava AG Vorrichtung zur automatischen Saugleistungssteuerung eines Staubsaugers
JPH02268718A (ja) * 1989-04-10 1990-11-02 Matsushita Electric Ind Co Ltd 掃除機
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EP0479609A2 (de) * 1990-10-05 1992-04-08 Hitachi, Ltd. Staubsauger und Verfahren zur Steuerung desselben
JPH04122340A (ja) * 1990-09-14 1992-04-22 Matsushita Electric Ind Co Ltd 電気掃除機
JPH04197327A (ja) * 1990-11-29 1992-07-16 Nec Home Electron Ltd 自走式掃除機
EP0527567A2 (de) * 1991-08-01 1993-02-17 Hitachi, Ltd. Methode zur Regelung eines zu regelnden Objektes und Regelungssystem für diese Methode
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH027928A (ja) * 1988-06-28 1990-01-11 Matsushita Electric Ind Co Ltd 電気掃除機
EP0379680A1 (de) * 1989-01-21 1990-08-01 Interlava AG Vorrichtung zur automatischen Saugleistungssteuerung eines Staubsaugers
JPH02268718A (ja) * 1989-04-10 1990-11-02 Matsushita Electric Ind Co Ltd 掃除機
JPH03178624A (ja) * 1989-12-08 1991-08-02 Hitachi Ltd 電気掃除機
JPH04122340A (ja) * 1990-09-14 1992-04-22 Matsushita Electric Ind Co Ltd 電気掃除機
EP0479609A2 (de) * 1990-10-05 1992-04-08 Hitachi, Ltd. Staubsauger und Verfahren zur Steuerung desselben
JPH04197327A (ja) * 1990-11-29 1992-07-16 Nec Home Electron Ltd 自走式掃除機
EP0527567A2 (de) * 1991-08-01 1993-02-17 Hitachi, Ltd. Methode zur Regelung eines zu regelnden Objektes und Regelungssystem für diese Methode
JPH0595878A (ja) * 1991-10-04 1993-04-20 Matsushita Electric Ind Co Ltd 電気掃除機の制御装置

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009103585A1 (de) 2008-02-20 2009-08-27 BSH Bosch und Siemens Hausgeräte GmbH Vorrichtung zur automatischen saugleistungsregelung eines staubsaugers
CN101945607B (zh) * 2008-02-20 2013-09-11 Bsh博施及西门子家用器具有限公司 用于吸尘器的抽吸功率自动调节的装置
CN106805841A (zh) * 2017-02-17 2017-06-09 江苏美的清洁电器股份有限公司 吸尘器
CN106805841B (zh) * 2017-02-17 2020-04-03 江苏美的清洁电器股份有限公司 吸尘器
CN109567670A (zh) * 2018-11-21 2019-04-05 刘玉蓉 一种智能吸尘器
CN110863461A (zh) * 2019-11-22 2020-03-06 张思祺 一种智能保洁机器人

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