EP4066715A1 - Appareil de nettoyage fonctionnant sur batterie et?procédé de fonctionnement d'un appareil de nettoyage - Google Patents

Appareil de nettoyage fonctionnant sur batterie et?procédé de fonctionnement d'un appareil de nettoyage Download PDF

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Publication number
EP4066715A1
EP4066715A1 EP22164352.1A EP22164352A EP4066715A1 EP 4066715 A1 EP4066715 A1 EP 4066715A1 EP 22164352 A EP22164352 A EP 22164352A EP 4066715 A1 EP4066715 A1 EP 4066715A1
Authority
EP
European Patent Office
Prior art keywords
battery
signal
cleaning device
charge
state
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.)
Granted
Application number
EP22164352.1A
Other languages
German (de)
English (en)
Other versions
EP4066715C0 (fr
EP4066715B1 (fr
Inventor
Jan Becker
Michael Hutmacher
Martino Minardi
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.)
Alfred Kaercher SE and Co KG
Original Assignee
Alfred Kaercher SE and Co KG
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 Alfred Kaercher SE and Co KG filed Critical Alfred Kaercher SE and Co KG
Publication of EP4066715A1 publication Critical patent/EP4066715A1/fr
Application granted granted Critical
Publication of EP4066715C0 publication Critical patent/EP4066715C0/fr
Publication of EP4066715B1 publication Critical patent/EP4066715B1/fr
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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
    • A47L9/2805—Parameters or conditions being sensed
    • 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
    • A47L9/2857—User input or output elements for control, e.g. buttons, switches or displays
    • 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
    • A47L9/2868—Arrangements for power supply of vacuum cleaners or the accessories thereof
    • A47L9/2884—Details of arrangements of batteries or their installation
    • 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

Definitions

  • the present invention relates to a battery-operated cleaning device, in particular a floor cleaning device, which can be operated independently of the mains with a battery, the cleaning device comprising a display device for displaying the state of charge of the battery, the cleaning device having a display control device for controlling the display device as a function of an analog state of charge signal which indicates the state of charge corresponds to the battery, wherein the display driver comprises an analog signal input for receiving the analog state of charge signal from the battery.
  • the present invention relates to a method for operating a cleaning device, in particular a floor cleaning device, which is operated independently of the mains with a battery, the charge status of the battery being displayed with a display device of the cleaning device, the display device depending on an analog charge status signal which indicates the charge status of the battery corresponds, is controlled.
  • cleaning devices of the type described above in particular in the form of floor cleaning devices, which are supplied with electrical energy from a battery in the form of a lead-acid battery.
  • the electrical energy is used to drive, for example, a drive device and cleaning elements of the cleaning device.
  • a lead-acid battery is used as the energy supply, the state of charge of the same can be determined directly from the battery voltage, because this essentially depends on the state of charge of the battery, and this over a large range of the battery charge.
  • the display control device of cleaning devices of the type described above which are operated with lead batteries, is therefore usually designed as described above.
  • the battery voltage tapped off at the battery poles is used as an analog state of charge signal of the battery and is processed directly with the display control device in order to operate the display device.
  • a portable device with at least one battery pack and a cleaning device is known.
  • a battery powered cleaning device and methods of operating the same are in US Pat WO 2017/054856 A1 described.
  • the DE 10 2018 102 982 A1 relates to a charger and method for charging a battery pack.
  • the cleaning device comprises an electrical signal conversion device for converting a digital charge state signal provided by the battery and corresponding to the charge state of the battery into an analog charge state signal corresponding to the charge state of the battery that the signal conversion device includes an analog signal output and that the analog signal output is electrically operatively connected to the analog signal input of the display control device for transmitting the analog state of charge signal from the signal conversion device to the display control device.
  • the proposed signal conversion device makes it possible to use a lithium-ion battery, for example in the form of a lithium-iron phosphate battery, instead of a lead-acid battery.
  • the cleaning device itself in particular its display device including the display control device, does not have to be changed for this.
  • the digital state of charge signal provided by the battery is rather converted with the signal conversion device into an analog state of charge signal, which can be further processed directly by the display control device included in the cleaning appliance and displayed on the display device for a user.
  • the cleaning device Users can thus choose between different battery types to operate the cleaning device. This increases the flexibility for using the cleaning devices.
  • simple conversion or retrofitting of existing cleaning devices is possible because the electrical signal conversion device can be installed in particular as an additional circuit arrangement on the cleaning device.
  • the signal processing unit can be designed in such a way that it can be used to simulate a functional dependency between the voltage and the state of charge, which corresponds to the battery for which the display control device was originally configured.
  • the signal conversion device comprises an electronic circuit arrangement with a bus transceiver, in particular in the form of a CAN bus transceiver, and if the bus transceiver comprises the digital signal input or is electrically operatively connected to it.
  • a state of charge signal which is made available by a battery, in particular a battery management system of the same, can be processed and converted for a data processing unit of the signal conversion device.
  • the battery management system can provide data relating to the state of charge of a battery, but also other battery-specific parameters such as temperature, number of charging cycles, age or specific data for the battery such as battery type and manufacturer.
  • the digital signal input is designed in the form of a CAN bus input interface of the signal conversion device.
  • the signal conversion device can thus be designed to be particularly compact and simple. In particular, it can process CAN bus signals directly in this way.
  • the signal conversion device includes a signal processing unit, in particular in the form of a microcontroller or an ASIC, for converting a digital bus signal provided by the bus transceiver into an analog state of charge signal, in particular a PWM signal, and if the signal processing unit is connected to the analog signal output is electrically connected.
  • the signal processing unit thus converts the digitally provided state of charge signal into an analog state of charge signal, which can be transmitted to the display control device either directly or, optionally after the same is electrically amplified.
  • the signal conversion device includes an analog signal amplifier for amplifying the analog state of charge signal generated by the signal processing unit, in particular in the form of the PWM signal, and if the signal amplifier is connected downstream of the signal processing unit and is electrically operatively connected to the analog signal output to provide the analog state of charge signal.
  • the signal amplifier can be designed in particular in the form of an operational amplifier. With him In particular, a voltage range provided by the signal processing unit can be converted or transformed to the voltage range required by the display control device.
  • the signal conversion device comprises at least one further bus transceiver, in particular in the form of a further CAN bus transceiver, and if the at least one further bus transceiver is electrically operatively connected to the signal processing unit and is formed for providing a digital bus signal corresponding to the state of charge of the battery, in particular a CAN bus signal, to at least one further digital bus interface, in particular in the form of a CAN bus output interface, of the signal conversion device.
  • the at least one additional bus transceiver also makes it possible, in particular, to convert additional data signals provided by the battery, for example other commands, messages or bus speeds, and to transmit them to the cleaning device or to its accessories, for example.
  • other commands and messages can also be used, for example.
  • the cleaning device can include a further display device in order to display physical status information about the battery to a user, such as temperature, charging cycles and the like.
  • a charge status of the battery can be displayed to a user quickly and easily if the display device is in the form of a bar display or a multi-segment display.
  • the bar or multi-segment display can be designed in the form of an LCD or LED display with a plurality of display segments. A state of charge can thus be presented to a user in a clear manner.
  • the multi-segment display can include seven display segments.
  • the display control device includes the display device.
  • the display device can be arranged on a circuit board or be formed, on which the display control device is also arranged or formed.
  • the battery-operated cleaning device comprises a battery.
  • this can be in the form of a rechargeable battery.
  • the battery can be arranged or designed in such a way that it is permanently connected to the cleaning device.
  • non-detachable means in particular that the battery cannot be separated from the cleaning device by a user as intended.
  • the battery can only be removed, ie in particular separated from the cleaning device, by an authorized specialist company.
  • the cleaning device can be operated with any type of battery.
  • the battery is preferably in the form of a lead battery or a lithium-ion battery, for example in the form of a lithium iron phosphate battery.
  • the cleaning device can be used for a sufficiently long time for a user.
  • the battery in particular a lithium-ion battery, includes a battery management system for generating a digital state of charge signal corresponding to the state of charge of the battery and if the battery management system is electrically operatively connected to a digital data output of the battery for providing the digital state of charge signal for the cleaning device, in particular for the display control device.
  • a battery management system can in particular determine a current state of charge of the battery with high precision and provide it in the form of a digital state of charge signal, which is then transmitted or sent to the digital data output.
  • the battery management system can also monitor, in particular, individual cells of a battery that is designed in the form of a battery pack with a number of individual cells. In particular, charging current monitoring and withdrawal current monitoring can be carried out in this way take place permanently. Furthermore, the temperature and number of charging cycles can also be monitored, saved and, if necessary, output.
  • the battery can be releasably connected to the cleaning device if the battery is electrically and mechanically completely disconnected from the cleaning device in a disconnected position and electrically operatively connected to the cleaning device in a connected position.
  • the battery In the connection position, the battery can optionally also be mechanically coupled to the cleaning device. In this way, a connection between the battery and the cleaning device that is reliable for the operation of the cleaning device can be implemented. It is also possible to separate the battery from the cleaning device, for example for charging, and replace it with a charged battery. In this way, the cleaning device can be used continuously.
  • the battery is preferably mechanically coupled to the cleaning device in the connection position.
  • the battery can be held securely on the cleaning device in the connection position, in particular, in order to prevent the battery from being unintentionally released, falling off or falling down from the cleaning device.
  • a mechanical coupling can be implemented by positioning the battery in a receptacle provided for this purpose, which can be closed with a lockable cover.
  • the cleaning device comprises a battery interface for electrically operatively connecting to the battery, that the battery interface comprises a digital data input and that the digital data input when the battery is electrically operatively connected to the battery interface with the digital data output of the battery is electrically connected.
  • a battery interface makes it possible in particular to transmit digital data or signals from the battery to the cleaning device when the Battery is connected to the cleaning device, especially when a digital data output of the battery is electrically operatively connected to the digital data input of the cleaning device.
  • the cleaning device favorably comprises a battery holder for accommodating the battery, with the battery interface being arranged or formed in or on the battery holder.
  • a battery holder makes it possible, in particular, to position the battery on the cleaning device in a defined manner.
  • an electrical and/or mechanical coupling of the battery to the cleaning device can also be specified in a defined manner.
  • the battery interface comprises battery connection contacts and if the battery connection contacts are electrically operatively connected to the battery poles of the battery when the battery is electrically operatively connected to the battery interface. In particular, this makes it possible to supply the cleaning device with electrical energy stored in the battery. In addition, a defined connection of the battery with its battery poles on the cleaning device is possible.
  • the battery connection contacts include first battery connection contacts for a lead-acid battery and second battery connection contacts for a lithium-ion battery, if the first battery connection contacts are electrically operatively connected to the battery poles of a lead-acid battery that is electrically operatively connected to the battery interface, and if the second battery connection contacts are electrically operatively connected to the battery interface electrically connected lithium-ion battery with the battery poles are electrically connected.
  • the proposed development makes it possible, in particular, to use different battery types, for example the two battery types mentioned, namely lead-acid battery and lithium-ion battery, to operate the cleaning device.
  • the battery interface can comprise first and second battery connection contacts, each for one battery type are specifically arranged and designed. This makes it possible in particular to operate the cleaning device with different types of batteries, which can be used alternatively to operate the cleaning device.
  • the display control device comprises a voltage divider for reducing a voltage of the analog state of charge signal present at the analog signal input.
  • a voltage divider makes it possible in particular to operate the cleaning device with batteries that provide different operating voltages.
  • the display device then does not have to be modified at great expense in order to also display the state of charge of a battery with a higher battery voltage safely and reliably.
  • the battery voltage can be reduced, in particular proportionally, with the voltage divider, so that the analog state of charge signal of the battery picked up at the voltage divider can be further processed with the display control device for output on the display device.
  • such a voltage divider makes it possible in particular to provide an additional analog signal input for higher battery voltages, which also makes it possible to overwrite the analog state of charge signal from batteries with a lower battery voltage.
  • the object stated at the outset is also achieved according to the invention in a method of the type described at the outset in that a digital state of charge signal provided by the battery and corresponding to the state of charge of the battery is converted into an analog state of charge signal corresponding to the state of charge of the battery and is provided for driving the display device.
  • a digital state of charge signal can be converted into an analog state of charge signal in a simple manner if the converted analog state of charge signal is provided in the form of a PWM signal.
  • the converted analog state of charge signal is amplified before it is made available to the display device.
  • the analog state of charge signal can preferably be amplified for provision to a display device for switching on the display device.
  • a signal level of the converted analog state of charge signal can be adapted to the display device or its display control device via an amplification factor.
  • the state of charge of the battery is preferably displayed with a plurality of display segments in the form of bars or segments. In this way, a user can quickly see the state of charge of the battery he is using.
  • the cleaning device is advantageously operated with a battery in the form of a rechargeable battery. This enables a user in particular to use a battery several times. This is ecologically of great advantage.
  • a lead battery or a lithium-ion battery is used as the battery.
  • the battery types mentioned allow it is possible for a user to supply a cleaning device, in particular a floor cleaning device, with sufficient operating currents.
  • the battery is releasably connected to the cleaning device in such a way that the battery is electrically and mechanically completely separated from the cleaning device in a disconnected position and electrically operatively connected to the cleaning device in a connected position.
  • the battery can also be mechanically operatively connected to the cleaning device in the connection position.
  • the battery can be connected to the cleaning device in order to operate the cleaning device, and the battery can be disconnected from the cleaning device for charging or storage.
  • FIG. 1 An exemplary embodiment of a cleaning device according to the prior art is schematically denoted overall by the reference numeral 10 .
  • the cleaning device 10 is in the form of a floor cleaning device 12 .
  • the cleaning device 10 comprises a battery 14 for operation a lead-acid battery 16.
  • Other components of the cleaning device 10, in particular an optional drive device and cleaning elements such as brushes, rollers and the like, are shown in FIG figure 1 not shown.
  • a display device 18 is used to display a state of charge of the battery 14.
  • the display device 18 is designed in the form of a bar display 20 or a multi-segment display.
  • a display control device 22 that is electrically operatively connected to the display device 18 is used to control the display device 18. This includes an analog signal input 24 for receiving an analog charge state signal from the battery 14.
  • the analog state of charge signal is defined by the battery voltage present at the battery terminals 30 and 32 of the same. This depends on the state of charge of the battery 14 . In other words, there is a mathematically functional relationship between the battery voltage and the state of charge.
  • the battery poles 30 and 32 are connected to the first signal input contact 26 and the second signal input contact 28 via electrical connecting lines 34 and 35 with one another.
  • figure 2 16 schematically shows the dependency of the battery voltage present at battery poles 30 and 32 as a function of the state of charge of lead battery 16. If this is discharged, ie the charge of battery 14 decreases, the voltage at battery poles 30 and 32 also falls.
  • FIG 3 schematically shows the dependency of the battery voltage of a battery 14 in the form of a lithium-ion battery 36, namely a lithium-iron phosphate battery, as a function of the state of charge of such a battery 14.
  • the battery voltage practically does not change over a wide range of state of charge.
  • a lithium-ion battery 36 which in the embodiment of the cleaning device 10 according to figure 1 the lead battery 16 replaced would mean that their charging status would not be displayed correctly.
  • a signal conversion device 38 is additionally provided.
  • the signal conversion device 38 includes a digital signal input 40 which is connected to a digital data output 44 of the battery 14 via a two-wire data line 42 in order to transmit the digital state of charge signal provided by a battery management system 110 .
  • the signal conversion device 38 converts the digital state of charge signal into an analog state of charge signal corresponding to the state of charge of the battery 14 , specifically in the form of an analog voltage signal, and makes this available at an analog signal output 46 of the signal conversion device 38 .
  • the analog signal output 46 is connected to the analog signal input 124 of the display control device 22 via two connecting lines 48 and 50 .
  • the described equipment of the cleaning device 10 with the signal conversion device 38 thus makes it possible in particular to use the lithium-ion battery 36 instead of the lead-acid battery 16 to operate the cleaning device 10 .
  • the display drive device 22 and the display device 18 do not have to be changed for this. Rather, it is also possible, in particular a cleaning device 10, as is shown schematically in figure 1 is shown to be retrofitted with a digital signal conversion device 38 .
  • figure 5 12 shows a further schematically illustrated exemplary embodiment of a cleaning device 10 in the form of a floor cleaning device 12.
  • the same reference numbers are used to designate identical or similar components as in the previous exemplary embodiments.
  • the cleaning device 10 includes a battery interface 52 for electrically operatively connecting to the battery 14.
  • the battery interface 52 includes a digital data input 54 which, when the battery 14 is electrically operatively connected to the battery interface 52, is electrically operatively connected to its digital data output 44.
  • a battery 14 in the form of a lithium-ion battery 36 with a digital data output 44 is shown here schematically.
  • the cleaning device 10 includes a battery holder 56 for at least partially accommodating the battery 14.
  • the battery interface 52 is arranged or formed on or in the battery holder 56.
  • Battery interface 52 includes battery connection contacts 58 and 158, respectively, which when battery 14 is electrically operatively connected to battery interface 52, namely either lead-acid battery 16 or lithium-ion battery 36, are electrically operatively connected to battery terminals 30, 32 or 130, 132, respectively, if the respective battery 14 is used as intended in the battery holder 56.
  • the battery connection contacts 58 include first battery connection contacts 60 and 62 for the lead-acid battery 16 and second battery connection contacts 160 and 162 for a lithium-ion battery 36.
  • the first battery connection contacts 60, 62 are electrically operatively connected to their battery poles 30 and 32, respectively.
  • the second battery connection contacts 160 , 162 are electrically operatively connected to its battery poles 130 and 132 .
  • the battery holder 56 is in the in figure 5 schematically illustrated embodiment designed such that either one of the two in figure 5 Batteries shown schematically, ie either the lead battery 16 or the lithium-ion battery 36, can be used in the battery holder 56.
  • the lead-acid battery 16 is connected with its battery poles 30 to the first battery connection contacts 60, 62
  • the lithium-ion battery 36 is connected with its battery poles 130 and 132 to the second battery connection contacts 160, 162.
  • the digital data input 54 which is designed in particular in the form of a bus interface, of the battery interface 52 is connected to the digital signal input 40 of the signal conversion device 38 via the two-wire data line 42.
  • the analog signal output 46 is as in the embodiment figure 4 already explained, electrically operatively connected via the connecting lines 48 and 50 to the analog signal input 124 of the display control device 22 .
  • the first and second battery contacts 60 and 160 or 62 and 162 are connected to the further analog signal input 24 of the display control device 22 via the connecting lines 34 and 35 .
  • a voltage divider can be arranged between the analog signal input 24 and the analog signal input 124, which makes it possible to reduce the battery voltages of both batteries 14, if necessary, so that the display control device 22 can otherwise be used essentially unchanged.
  • figure 6 shows schematically a circuit structure of a display control device 22, which is electrically operatively connected on the one hand to a battery 14 in the form of a lithium-ion battery 36 and on the other hand to a signal conversion device 38.
  • the digital data output 44 of the lithium-ion battery 36 has two poles and is in the form of a CAN bus connection 64 . This is electrically operatively connected via a two-wire bus line 66 to the digital data input 54 , which is also designed in the form of a CAN bus connection 68 .
  • the signal conversion device 38 includes a signal processing unit 70 in the form of a microcontroller 72.
  • a CAN input 74 of the microcontroller 72 is electrically connected via a data line 76 to an output 78 of a CAN transceiver 80.
  • the CAN transceiver 80 also referred to as a CAN bus transceiver, forms a bus transceiver 82 of the electrical circuit arrangement 84 comprised by the signal conversion device 38, the digital signal input 86 of which is electrically operatively connected to the CAN bus connection 68.
  • the digital signal input 86 is in the form of a CAN bus input interface 88 of the signal conversion device 38 .
  • the signal processing unit 70 is designed to convert a digital bus signal provided by the bus transceiver 82 via the data line 76 into an analog state of charge signal, specifically in the form of a PWM signal. Furthermore, an output 90 of the signal processing unit 70 is electrically operatively connected to the analog signal output 46 of the signal conversion device 38 .
  • the signal conversion device 38 also includes an analog signal amplifier 92, which in the case of FIG figure 6 illustrated embodiment is in the form of an operational amplifier. It is used to amplify the analog state of charge signal generated by the signal processing unit 70 .
  • the signal amplifier 92 is connected downstream of the signal processing unit 70 and is electrically operatively connected to the analog signal output 46 in order to provide the amplified analog state of charge signal for the display control device 22.
  • the analog signal input 124 of the display control device 22 is electrically operatively connected to a display driver 96 via a connecting line 94 .
  • the display driver 96 is operatively connected via a connecting line 98 to the bar display 20, which comprises a plurality of display segments 100.
  • the analog signal input 24 of the display control device 22 is electrically operatively connected to the display driver 96 via a voltage divider 102 .
  • a further exemplary embodiment of a signal conversion device 138 is shown schematically in figure 7 shown. It agrees with the exemplary embodiment of the signal conversion device 38 in essential parts figure 6 match, so that here again identical reference numbers were used to designate identical components.
  • the signal conversion device 138 differs from the signal conversion device 38 in particular in that a further output 190 of the signal processing unit 70 is connected via a data line 176 to a further bus transceiver in the form of a CAN transceiver 180 in a data-effective manner.
  • the CAN transceiver 180 is in turn connected to a CAN bus connection 168 which forms a digital data output 154 . Consequently, the CAN bus connection 168 forms a CAN bus output interface 188.
  • the CAN transceiver 180 additionally or optionally makes it possible to output the digital state of charge value provided by the lithium-ion battery 36, but also other commands and messages, for example, to a machine-compatible CAN bus of the cleaning device 10 or to change a bus speed.
  • the state of charge of the battery 14 can also be output on alternative display devices of the cleaning device or stored in a memory device.
  • the signal conversion devices 38 and 138 allow batteries 14 in the form of lithium-ion batteries 36, for example in the form of a lithium iron phosphate battery, to convert provided digital state of charge signals into analog state of charge signals that can be processed with known display control devices 22 and displayed on the associated display device 18 to a user.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)
EP22164352.1A 2021-03-26 2022-03-25 Appareil de nettoyage fonctionnant sur batterie et?procédé de fonctionnement d'un appareil de nettoyage Active EP4066715B1 (fr)

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DE102021107687.0A DE102021107687A1 (de) 2021-03-26 2021-03-26 Batteriebetriebenes Reinigungsgerät und Verfahren zum Betreiben eines Reinigungsgeräts

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DE102016111876A1 (de) 2016-06-29 2018-01-04 Metabowerke Gmbh Tragbare Vorrichtung
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WO2019063292A1 (fr) * 2017-09-29 2019-04-04 Robert Bosch Gmbh Aspirateur
DE102018102982A1 (de) 2018-02-09 2019-08-14 Metabowerke Gmbh Ladegerät und Verfahren zum Laden eines Akkupacks
DE102019106786A1 (de) * 2019-03-18 2020-09-24 Miele & Cie. Kg Verfahren und Vorrichtung zum Betreiben eines Motors für ein Reinigungsgerät und Reinigungsgerät

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CN108135423A (zh) 2015-09-30 2018-06-08 阿尔弗雷德·凯驰两合公司 电池运行的清洁设备和用于运行该清洁设备的方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017054856A1 (fr) 2015-09-30 2017-04-06 Telecom Italia S.P.A. Procédé de gestion de réseaux de communication sans fil par prédiction de paramètres de trafic
DE102016111876A1 (de) 2016-06-29 2018-01-04 Metabowerke Gmbh Tragbare Vorrichtung
US20180299899A1 (en) * 2017-04-13 2018-10-18 Neato Robotics, Inc. Localized collection of ambient data
WO2019063292A1 (fr) * 2017-09-29 2019-04-04 Robert Bosch Gmbh Aspirateur
DE102018102982A1 (de) 2018-02-09 2019-08-14 Metabowerke Gmbh Ladegerät und Verfahren zum Laden eines Akkupacks
DE102019106786A1 (de) * 2019-03-18 2020-09-24 Miele & Cie. Kg Verfahren und Vorrichtung zum Betreiben eines Motors für ein Reinigungsgerät und Reinigungsgerät

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EP4066715C0 (fr) 2024-07-31
EP4066715B1 (fr) 2024-07-31
DE102021107687A1 (de) 2022-09-29

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