Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F24—HEATING; RANGES; VENTILATING
  • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
  • F24C3/00—Stoves or ranges for gaseous fuels
  • F24C3/12—Arrangement or mounting of control or safety devices
  • F24C3/126—Arrangement or mounting of control or safety devices on ranges

Definitions

• the invention relates to a gas cooking appliance device according to claim 1 and to method for operating a gas cooking appliance device according to claim 16.
• thermocouple which generates a low electrical current when a flame is lit.
• the valve is used to stop the gas flow in case that the flame is lit and therefore, the thermocouple stops feeding the valve.
• the thermocouple and the valve therefore act as an emergency shutdown device.
• a manually adjusted heating power is quite inaccurate and hardly repeatable.
• the objective of the invention is, in particular, to provide a gas cooking appliance device with improved characteristics regarding a convenience for a user.
• the objective is achieved, according to the invention, by the features of claims 1 and 16, while
• a gas cooking appliance device comprising: at least one electrically controllable valve; and at least one control unit, the control unit operating the valve, in at least one operating state, for adjusting a gas flow averaging over a time period.
• a high convenience for a user can in particular be achieved.
• a very precise control of the power delivered to the pot can in particular be achieved.
• the automatic cooking process may in particular include at least one timer and/or at least one temperature regulated mode and/or at least one predefined cooking function.
• a high flexibility can in particular be achieved, wherein in particular a high amount of different gas cooking appliances can easily be realized.
• a more complex and/or accurate and/or precise and/or repeatable control of a demanded heating power for example by means of at least one sensed temperature feedback control, can in particular be achieved.
• a“gas cooking appliance device” is in particular to be understood at least a portion, preferably a sub-assembly group, of a gas cooking appliance.
• the gas cooking appliance in particular comprises at least one burner. In the operating state, the burner in particular heats up at least one vessel.
• the gas cooking appliance in particular comprises at least one vessel support which is in particular provided for positioning at least one vessel in particular for the purpose of heating up the vessel.
• the gas cooking appliance device comprises at least one cooktop.
• the cooktop in particular defines at least a portion of an outer housing, in particular of an outer gas cooking appliance housing.
• the vessel support is located on the cooktop, in the operating state. In a vertical view on a main extension plane of the cooktop, the burner is in particular located within an area of the vessel support.
• the gas cooking appliance device and/or the gas cooking appliance may in particular be connected to at least one gas source, in the operating state.
• the gas source may in particular be part of at least one building in which the gas cooking appliance device and/or the gas cooking appliance is located.
• a termmain extension plane of an object in particular a plane is to be understood which is oriented parallel to a largest side of a smallest imaginary rectangular cuboid just still entirely enclosing the object, and which in particular extends through a center point of the rectangular cuboid.
• A“valve” is in particular to be understood as a unit, which regulates and/or directs and/or controls a flow of gas.
• the valve In at least one closed state of the valve, the valve in particular blocks and/or closes at least one passageway of the gas.
• the valve in particular opens at least one passageway of the gas, in at least one opening state of the valve.
• the valve comprises at least one plunger which in particular defines a state of the valve at least partly.
• the valve in particular comprises at least one first bound and at least one second bound, which in particular differs from the first bound.
• the valve In case that the plunger is located at the first bound, the valve is in particular in an opened state of the valve. In case that the plunger is located at the second bound, the valve is in particular in a closed state of the valve.
• the plunger in particular opens and/or closes at least one gas flow to the burner and in particular at least one burner gas outlet for at least one gas chamber.
• the plunger may in particular be used to allow or prevent a gas flow to a certain burner.
• the first bound and the second bound are in particular two opposing end positions of the plunger of the valve.
• the valve in particular comprises at least one valve coil for activating the valve and in particular adjusting a movement of the plunger.
• the control unit may in particular operate the valve by altering at least one voltage of the valve coil and/or by altering at least one current through the valve coil.
• the valve may in particular be configured for partially opening at least one passageway of the gas, in the operating state.
• the valve in particular may be configured for completely opening or completely closing at least one passageway of the gas, in the operating state,
• the valve in particular differs from a pneumatic valve and/or from a mechanically controllable valve and/or from a mechanically adjustable valve.
• the valve in particular opens and/or blocks a gas flow to the burner.
• the burner in particular provides, in the operating state, in particular a heating power on the basis of the gas flow.
• the heating power provided by the burner is in particular proportional to the gas flow though the valve. The higher the gas flow through the valve, the higher the heating power provided by the burner will be.
• control unit is in particular to be understood as an electronic unit which is preferably at least partially integrated in a control unit and/or in a regulating unit of a gas cooking appliance and which is preferably configured for controlling and/or for regulating at least the valve.
• the control unit comprises at least one computing unit and, in particular in addition to the computing unit, at least one memory unit with a control program and/or regulating program stored therein, which is intended to be executed by the computing unit.
• the control unit may in particular comprise at least one microcontroller and/or may in particular be embodied as a microcontroller.
• control unit operates the valve by means of at least one control signal.
• the control signal may in particular have at least two level control states, in particular at least one high level control state and at least one low level control state.
• the valve In the high level control state, the valve may in particular be in the opened state of the valve.
• the valve In the low level control state, the valve may in particular be in the closed state of the valve.
• the low level control signal may in particular be defined by a voltage of at least substantially and preferably exactly zero.
• the high level control signal may in particular be defined by a voltage being different from zero and/or having an absolute value greater than zero.
• the control unit in particular regulates the valve for providing an output gas flow of the valve that in particular corresponds at least substantially to a demanded heating power.
• the demanded heating power may in particular be given by an automatic cooking program.
• the demanded heating power may in particular be stored in the memory unit of the control unit.
• the demanded heating power may in particular be given by a user.
• the demanded heating power may in particular be entered via at least one user interface.
• the gas cooking appliance device in particular comprises at least one user interface for entering and/or for outputting at least one operating parameter.
• the operating parameter may in particular be at least one heating power and/or at least one heating power density and/or at least one heating zone.
• the gas cooking appliance device in particular comprises at least one activation circuit and/or input circuit that supplies the valve, which is in particular configured for opening and/or closing the valve and/or for electrically supplying the valve.
• “configured” is in particular to mean specifically programmed, designed and/or equipped.
• an object being configured for a certain function it is in particular to be understood that the object implements and/or fulfills said certain function in at least one application state and/or operating state.
• the valve may in particular be embodied as a valve with at least three, in particular with at least four, advantageously with at least five, particularly advantageously with at least seven, preferably with at least ten and particularly preferably with a plurality of stable positions.
• the control unit may in particular electronically adjust the valve, in particular by means of a voltage, and regulating the gas flow through the valve by adjusting at least one of the stable positions of the valve, which in particular corresponds to and/or results in a demanded heating power.
• the valve is embodied as an on-off valve and has in particular exactly two stable positions.
• the valve is embodied as an on-off solenoid valve.
• the valve has in particular exactly two stable positions, in particular an open state of the valve and a closed state of the valve.
• the control unit in particular switches the valve with a frequency in such a way that the power delivered to a pot at least essentially and preferably completely corresponds to a desired heating level.
• control unit operates the valve in the operating state by means of pulse width modulation.
• the control unit in particular operates the valve in the operating state with a control signal having a duty cycle of at least 5 %, in particular of at least 10 %, advantageously of at least 15 %, particularly advantageously of at least 20 %, preferably of at least 25 % and particularly preferably of at least 30 %.
• control unit operates the valve in the operating state with a control signal having a duty cycle of at most 95 %, in particular of at most 90 %, advantageously of at most 85 %, particularly advantageously of at most 80 %, preferably of at most 75 % and particularly preferably of at most 70 %.
• an easy control mechanism and/or a low programming expenditure can in particular be achieved, thereby in particular achieving low costs and/or a fast manufacturing process.
• the CO emissions at low levels of heating are much lower in case of operating the valve by means of pulse width modulation than by using conventional mechanical taps.
• control unit operates the valve in the operating state via a periodic control signal having a frequency of at least 5 Hz, in particular of at least 10 Hz, advantageously of at least 15 Hz, particularly advantageously of at least 20 Hz, preferably of at least 25 Hz and particularly preferably of at least 30 Hz.
• a periodic control signal having a frequency of at least 5 Hz, in particular of at least 10 Hz, advantageously of at least 15 Hz, particularly advantageously of at least 20 Hz, preferably of at least 25 Hz and particularly preferably of at least 30 Hz.
• control unit operates the valve in the operating state via a periodic control signal having a frequency of at most 500 Hz, in particular of at most 400 Hz, advantageously of at most 300 Hz, particularly advantageously of at most 250 Hz, preferably of at most 225 Hz and particularly preferably of at most 200 Hz.
• control unit operates the valve in the operating state with a frequency of more than 30 Hz and in particular of at most 200 Hz.
• a time period for switching between the open state and the closed state of the valve can in particular be considered, thereby in particular achieving an optimal and/or complete switching of the valve between the open state and the closed state of the valve.
• control unit operates the valve in at least one operating state with a frequency of at least 5 Hz, in particular of at least 10 Hz, advantageously of at least 15 Hz, particularly advantageously of at least 20 Hz, preferably of at least 25 Hz and particularly preferably of at least 30 Hz, an optimal compromise, in particular between an
• information for the operation of the valve may in particular be stored in the storage unit of the control unit at least to a large part and preferably completely, in particular in the operating state.
• the control unit may in particular operate the valve, in the operating state, on the basis of the information stored in the storage unit of the control unit.
• the gas cooking appliance device further comprises at least one sensor unit for detecting at least one valve parameter of the valve in particular directly and/or indirectly.
• the term meetingat least to a large part" is in particular to be understood as an amount, in particular as an amount of mass und/or of volume, of at least 70 %, in particular of at least 80 %, advantageously of at least 90 % and particularly
• a “sensor unit” is in particular to be understood as a unit which has at least one detector for detecting at least one sensor parameter and which is in particular intended to output a value characterizing the sensor parameter, wherein the sensor parameter may advantageously be at least one physical quantity and/or at least one chemical quantity.
• the sensor unit may in particular comprise at least one sensor, being a voltmeter and/or an amperemeter, for the detection of the sensor parameter.
• the sensor unit may in particular detect the sensor parameter in the operating state indirectly.
• the sensor unit may in particular detect, in the operating state, at least one voltage of at least one shunt resistor and/or at least one current through at least one shunt resistor.
• the shunt resistor may in particular be electrically connected to the valve.
• the voltage of the shunt resistor may in particular be proportional to a voltage of the valve.
• the current through the shunt resistor may in particular be proportional to a current through the valve.
• the gas cooking appliance may in particular comprise at least one shunt resistor being electrically connected to the valve.
• the sensor unit may, in the operating state, in particular detect the sensor parameter directly, in particular by means of a sound of at least one switching operation of the valve.
• the sensor unit may in particular comprise at least one sensor, being a microphone, for the detection of the sensor parameter.
• control unit estimates at least one inductance of the valve in the operating state.
• the gas cooking appliance device in particular comprises at least one shunt resistor which is in particular electrically connected to the valve.
• the shunt resistor has in particular a resistance of at most 50 %, in particular of at most 35 %,
• the sensor unit In particular measures a current through the shunt resistor, in particular in the operating state.
• the control unit in particular estimates the inductance of the valve on the basis of the measured current through the shunt resistor, in the operating state.
• the control unit uses, in the operating state, in particular for the estimation of the inductance of the valve a real-time estimation and in particular a method named Kalman filter and/or a method named reset observer.
• a correct function of the valve can in particular be controlled and/or checked, thereby in particular achieving a high security.
• the control unit estimates the state of the valve in the operating state in particular on the basis of the inductance of the valve.
• the control unit estimates, in particular in real-time, a position of a plunger of the valve on the basis of the estimated inductance of the valve, in the operating state.
• the control unit uses, in the operating state, a modeling strategy which could be at least one theoretical model based on magnetic equivalent circuits (MEC) and/or on finite element analysis (FEA) and/or at least one empirical expression identified with experimental data.
• MEC magnetic equivalent circuits
• FEA finite element analysis
• the inductance of the valve is in particular a function f of the position of the plunger of the valve.
• the inductance of the valve may in particular be a function f of at least one further variable like for example a current and/or a voltage.
• the control unit may in particular estimate the position of the plunger of the valve by means of the inverse function of the function f, in the operating state. In at least one operating state, the control unit may in particular calculate the state of the contact on the basis of the position of the plunger, in particular of the position of the plunger estimated before. For example, given a linear travel of the plunger of the valve, an opened state of the valve corresponds to at least one bound of a motion of the plunger.
• a closed state of the valve corresponds to at least one further bound of a motion of the plunger which in particular differs from said bound of the motion of the valve.
• the valve can in particular be optimally controlled and/or adjusted, thereby in particular enabling a perfect dosage of the gas flow and thereby in particular an exactly adjustment of a demanded heating power.
• an estimation of the state of the valve is enabled by means of only measuring a current through the shunt resistor.
• a stochastic modeling strategy can in particular be used, thereby in particular achieving a robustness against measurement errors.
• the estimation of the state of the valve can in particular be used to ascertain that safety shut off valves are opened or closed as expected, thereby in particular increasing a security of the gas cooking appliance.
• the estimation of the state of the valve can in particular be easily adjusted for different valves, which in particular could differ in at least one characteristic like size and/or type.
• the adjustment of the estimation of the state of the valve can in particular be done by changing parameter values of the modeling strategy based on at least one theoretical model and/or of the real-time estimation of the inductance of the valve.
• control unit may in particular operate the valve, in the operating state, by means of a periodic control signal having a rectangular form.
• the control unit may in particular activate a motion of the plunger of the valve by means of the periodic control signal.
• the plunger may, in the operating state, in particular be slowed down by hitting at least one bound of the motion of the plunger.
• the control unit is configured to slow down a speed of a plunger of the valve before the plunger reaches a stable end position of the valve.
• the control unit in particular starts a movement of the plunger of the valve by means of at least one activation pulse of the control signal.
• the control unit in particular slows down a speed of the plunger, in the operating state, by means of at least one counter pulse of the control signal.
• the counter pulse may in particular have a different sign compared to the activation pulse.
• noise which in particular may be caused by the plunger hitting at least one bound of the valve, and/or wear of the valve can in particular be prevented, thereby in particular a high convenience for a user and/or a durable embodiment can in particular be achieved.
• a switching operation of the valve may in particular be optimized in at least one manufacturing process, in particular by a technician.
• the control unit optimizes at least one switching operation of the valve, in the operating state, based on at least one previous switching operation of the valve.
• a switching operation of the valve can in particular be optimally controlled, thereby in particular an optimum adjustment of a heating power in particular delivered from the burner can in particular be enabled.
• undesirable effects which may in particular occur in a switching operation of the valve, may in particular be reduced, thereby in particular permitting a use of on-off valves in domestic environments.
• Undesirable effects may for example be a bouncing of the plunger of the valve and/or wear of the valve and/or acoustic noise produced by the valve.
• a method of optimizing a switching operating of the valve simply uses at least one ordinary switching operation to move little by little to the optimal switching operation.
• each switching operation of the valve in particular either it is‘good’ or‘bad’, may in particular be used to improve the next switching operation of the valve.
• a short time needed to obtain a good performance can in particular be achieved.
• control unit optimizes the switching operation of the valve, in the operating state, by using a method of optimizing a switching operating of the valve.
• the control unit preferably optimizes continually, in the operating state, a switching operation of the valve, in particular by using data of at least one previous switching operation of the valve, in particular of at least two, in particular of at least three, advantageously of at least five, particularly advantageously of at least seven, preferably of at least ten and particularly preferably of a plurality of previous switching operations of the valve.
• control unit chooses, in the operating state, a control signal which in particular may be predefined and/or stored in a storage unit of the control unit and/or entered via a user interface in particular by a user.
• the control unit in particular parameterizes the control signal, which in particular has been chosen.
• the control unit may in particular parameterize the control signal in terms of at least one voltage parameter and/or of at least one time parameter.
• a performance of the method of optimizing a switching operating of the valve depends on the complexity and/or simplicity of the chosen control signal and its parameterization. Complex control signals may in particular achieve better results than simple ones, but the optimization may in particular probably need more iterations and higher computational requirements.
• the parameterization has in particular to be flexible enough so that the control signal can be adapted to achieve different purposes.
• the sensor unit measures, in particular by means of the sensor being in particular a microphone and/or being an amperemeter, the sensor parameter.
• the control unit defines, in the operating state, in particular a cost function.
• the control unit in particular transforms at least one sensor parameter, which in particular is a measured variable, into a single value to be minimized. This may in particular be seen as obtaining an optimality value that quantifies the quality of a current performance.
• several cost functions may in particular be defined using the signal given by the microphone, including for example a root mean square value and/or an absolute mean value and/or a maximum absolute value. In particular in these cases, the lower this value, the higher the quality of the method of optimizing a switching operating of the valve.
• the method of optimizing is in particular highly versatile and in particular works for different valves and/or control signals and/or activation circuits and/or power supplies.
• different control signals and/or activation signals may in particular be used in order to achieve the same purpose.
• the control unit uses, in the operating state, in particular an optimization algorithm for optimizing at least one switching operation of the valve based on at least one previous switching operation of the valve.
• the optimization algorithm is in particular based on the sensor parameter(s) and in particular configured for the optimization of the cost function.
• the control unit in particular calculates at least one optimized parameter in particular for a parameterization of on optimized control signal.
• the optimization algorithm may in particular be a pattern search algorithm.
• optimization algorithm may in particular be free of any analytical derivatives.
• the control unit in particular distinguishes between an opening operation of the valve and a closing operation of the valve.
• the control unit uses, in the operating state, one method of optimizing a switching operating of the valve for the closing operation of the valve and for the opening operation of the valve, in particular simultaneously. Since a number of opening operations and a number of closing operations are in particular identical, the methods of optimizing used by the control unit for each switching operation of the valve, may in particular be performed simultaneously. In particular, the methods of optimizing used by the control unit for each switching operation of the valve are independent from each other and may in particular use different measurements and/or cost functions and/or optimization algorithms.
• the method of optimizing a switching operating of the valve may in particular be executed continually, the method of optimizing a switching operating of the valve may in particular be robust against changes and/or wear in the valve and/or in the gas cooking appliance, in particular especially if derivative-free optimization methods, for example like a pattern search algorithm, may be used. This means in particular that if the optimal point changes its position due to a change in the valve and/or in the gas cooking appliance, the method of optimizing is in particular able to move towards the new minimum.
• the gas cooking appliance device further comprises at least one further control unit and at least one security unit for avoiding an in particular undesirable gas leakage, the control unit and the further control unit being configured to close the valve by means of the security unit in case of an electrical defect, in particular of one of the control units and/or of the valve.
• the control unit and the further control unit being configured to close the valve by means of the security unit in case of an electrical defect, in particular of one of the control units and/or of the valve.
• a high security for a user can in particular be achieved and/or a gas leakage can in particular be prevented.
• any electronic component for example the valve and/or one of the control units, fails in any way
• a closing of the valve can in particular be enabled, in particular by means of an activation circuit and/or input circuit that supplies the valve.
• the valve can in particular be used in a flexible fashion and in particular for at least two functions, which may in particular be to control a gas flow and/or to avoid undesirable gas leakage.
• the gas cooking appliance device may in particular comprise one security unit for each burner.
• the gas cooking appliance device may comprise at least two, in particular of at least three, advantageously of at least five, particularly advantageously of at least seven, preferably of at least ten and particularly preferably of a plurality of security units.
• the sensor unit in particular comprises at least one sensor being a thermocouple.
• the sensor being a thermocouple in particular detects, in at least one operating state, an extinguishing of a flame of the burner. In at least one operating state, the sensor being a thermocouple in particular transmits a sensor output signal to the control unit and/or to the further control unit.
• the sensor being a thermocouple in particular transmits a sensor output signal being in particular in a first state in case that a flame of the burner is active.
• the sensor in particular in case that the sensor being a thermocouple detects an extinguishing of a flame of the burner, the sensor in particular transmits a sensor output signal being in particular in a second state which in particular differs from the first state.
• the control unit and/or the further control unit in particular closes the valve by means of the security unit on the basis of the sensor output signal received from the sensor being a thermocouple.
• control unit and/or the further control unit closes the valve by means of the security unit in case of receiving the second sensor output signal.
• the sensor output signal may in particular be an electrical current.
• A“security unit” is in particular to be understood as a unit, which, in at least one operating state, closes the valve in particular on the basis of at least one sensor parameter measured by the sensor unit, in particular by at least one sensor of the sensor unit being a thermocouple.
• the security unit in particular comprises at least one switching element for opening and/or closing at least one activation circuit and/or input circuit that supplies the valve.
• the switching element may in particular be a transistor.
• control unit and the further control unit may in particular communicate with each other, in at least one operating state.
• a correct functionality of the control unit and/or of the further control unit can in particular be ensured.
• the other control unit can in particular close the valve, thereby in particular avoiding undesirable gas leakage.
• the user interface may in particular communicate with the control unit and/or with the further control unit, thereby in particular enabling a
• control unit and the further control unit may in particular be electrically connected in parallel.
• the security unit may in particular comprise at least one dynamic activation circuit, in particular for each switching element and/or for each control unit.
• the dynamic activation circuit may in particular comprise, and preferably consist of, at least one band-pass filter and/or at least one rectifier, being in particular electrically connected in series.
• At least one first control unit of the control units may in particular generate a periodic control signal, in particular of a certain frequency, that in particular may be filtered and/or rectified by the dynamic activation circuit, in particular saturating at least one, in particular first, switching element.
• the dynamic activation circuit may in particular eliminate the control signal in order to close the in particular first switching element.
• At least one second control unit of the control units may in particular control a gas flow generating signal in order to control at least one, in particular second, switching element, that may in particular open and/or close the activation circuit and/or input circuit that supplies the valve, thereby in particular opening and/or closing the valve.
• At least one switching element, in particular the first switching element and the second switching element may in particular close the activation circuit and/or input circuit that supplies the valve in case the other one fails and creates a short circuit.
• a voltage of the shunt resistor which may in particular be proportional to a current through the valve coil, may in particular be sent to the in particular first control unit in particular in order to ensure that the plunger of the valve is moving as expected meaning that the in particular second control unit is working correctly.
• a voltage of the shunt resistor which may in particular be proportional to a current through the valve coil, may in particular be sent to the in particular second control unit in particular in order to properly control the plunger of the valve.
• the gas cooking appliance device may in particular comprise at least one control unit and/or at least one further control unit and/or at least one user interface for each burner and in particular for each security unit.
• the gas cooking appliance device may in particular comprise in particular exactly one control unit and/or in particular exactly one further control unit and/or in particular exactly one user interface for a large part of and in particular for all burners and/or security units.
• the gas cooking appliance device may in particular comprise exactly one valve.
• the gas cooking appliance device comprises at least one further valve.
• the gas cooking appliance device may in particular comprise at least one basic body unit for each one of the valves.
• the gas cooking appliance device further comprises at least one further electronically controllable valve and at least one basic body unit, the basic body unit defining at least one gas chamber, at least one further gas chamber, at least one burner gas outlet for the gas chamber and at least one further burner gas outlet for the further gas chamber, the valve being configured for opening and/or closing the burner gas outlet and the further valve being configured for opening and/or closing the further burner gas outlet.
• gas cooking appliance device may in particular comprise at least two, in particular at least three, advantageously at least five, particularly advantageously at least seven, preferably at least ten and particularly preferably a plurality of further electronically controllable valves.
• the basic body unit may in particular define at least two, in particular at least three, advantageously at least five, particularly advantageously at least seven, preferably at least ten and particularly preferably a plurality of further gas chambers.
• a number of further valves and a number of further gas chambers may in particular be identical.
• the basic body unit may in particular define at least one further burner gas outlet for each further gas chamber.
• the basic body unit in particular defines at least one gas inlet for the gas chamber and at least one further gas inlet for the further gas chamber.
• the basic body unit may in particular define at least one further gas inlet for each further gas chamber.
• A“basic body unit” is in particular to be understood as a unit defining and/or delimiting at least one gas chamber and/or at least one gas flow channel.
• the basic body unit in particular defines at least one flowing direction of the gas.
• A“gas chamber” is in particular to be understood as a cavity defined by the basic body unit for the accommodation of gas.
• A“burner gas outlet” for a gas chamber is in particular to be understood as gas pipe defined by the basic body unit through which, in the operating state, gas may in particular be directed from the gas chamber to at least one burner, in particular to the burner.
• A“gas inlet” for a gas chamber is in particular to be understood as gas pipe defined by the basic body unit through which, in the operating state, gas may in particular be directed to the gas chamber.
• the gas inlet may in particular be connected fluid-technically to the gas source and/or to at least one further gas chamber.
• the basic body unit may in particular comprise at least two, in particular at least three, advantageously at least five, particularly advantageously at least seven, preferably at least ten and particularly preferably a plurality of basic body elements.
• the basic body elements may in particular be
• a number of basic body elements and a number of electronically controllable valves and in particular a number of burners may in particular be identical.
• the basic body unit may in particular be of a modular fashion as several basic body elements can in particular be combined in a flexible fashion. On account on this, a high number of different gas stoves can in particular be designed in particular by means of the same basic body unit, only by using different numbers of basic body elements.
• each one of the basic body elements may in particular comprise at least one chamber gas outlet which is in particular configured to fluid-technically connect the gas chamber with at least one further gas chamber. In the operating state, the chamber gas outlet for the gas chamber in particular merges with the further gas inlet for the further gas chamber being located next to the gas chamber.
• the basic body unit may in particular comprise in particular exactly one basic body element which may in particular define the gas chambers and in particular the gas inlets.
• the basic body unit and in particular the basic body element may in particular be formed in one piece.
• the basic body unit and in particular the basic body element may in particular be embodied from a ceramic at least to a large part.
• the basic body unit and in particular the basic body element may in particular be embodied from at least one metal at least to a large part.
• the basic body unit and in particular the basic body element may in particular be embodied from aluminum and/or brass and/or zamak and/or steel.
• a high number of burners can in particular be provided, thereby in particular enabling the possibility of a gas cooking appliance having a plurality of burners arranged in a matrix pattern.
• a high flexibility can in particular be achieved.
• a simple construction and/or embodiment can in particular be achieved, thereby in particular achieving an easy manufacturing and/or low manufacturing costs.
• Each one of the gas chambers may in particular be directly connected fluid-technically to the gas source, in particular by means of the gas inlet of the respective gas chamber.
• the further gas chamber is indirectly connected fluid-technically to the gas source.
• the further gas chamber is in particular connected fluid-technically over the gas chamber to the gas source.
• the gas chamber and the further gas chamber are connected fluid-technically in particular by means of at least one of the gas inlets.
• Gas can in particular be directed to each one of the gas chambers from only one gas source, in particular only by means of one basic body unit and in particular only by means of one basic body element.
• the valve in particular closes the burner gas outlet in a closed state of the valve.
• the gas inlet for the gas chamber is in particular free so that gas can enter the gas chamber.
• the chamber gas outlet for the gas chamber is in particular free so that gas can leave the gas chamber.
• the gas inlet for the gas chamber and the chamber gas outlet for the gas chamber are in particular fluid-technically connected.
• the valve in particular opens the burner gas outlet in a opened state of the valve.
• the gas inlet for the gas chamber is in particular free so that gas can enter the gas chamber.
• the chamber gas outlet for the gas chamber is in particular free so that gas can leave the gas chamber.
• the gas inlet for the gas chamber and the chamber gas outlet for the gas chamber and in particular the burner gas outlet for the gas chamber are in particular fluid- technically connected. As a result on this, gas can in particular cross from one gas chamber to the next in particular regardless of the state and/or position of the valve for the gas chamber.
• the basic body unit comprises at least one accommodation region for accommodating at least one sensor of the sensor unit, in particular of the microphone of the sensor unit.
• the accommodation region may in particular be a hole and/or a cavity and/or a recess in the basic body unit, in particular in at least one basic body element of the basic body unit.
• the sensor of the sensor unit in particular the microphone of the sensor unit, may in particular be located in the accommodation region at least to a large part.
• the sensor of the sensor unit may in particular be securely placed, thereby in particular an endurable embodiment can in particular be achieved.
• an extra assembly for locating the sensor of the sensor unit can in particular be omitted, thereby in particular a cost-saving and/or compact embodiment can in particular be achieved.
• the possibility to attach at least one sensor, in particular a microphone, of the sensor unit is in particular enabled, thereby an easy estimation of a state of the valve can in particular be achieved.
• An extremely high convenience for a user can in particular be achieved by means of a gas cooking appliance comprising at least one gas cooking appliance device according to the invention.
• a convenience for a user can in particular be further improved by means of a method for operating a gas cooking appliance device, the gas cooking appliance device comprising: at least one electrically controllable valve; the valve being electronically operated, in at least one operating state, for adjusting a gas flow averaging over a time period.
• the home appliance device is not to be limited to the application and
• the home appliance device may comprise a number of respective elements, structural components and units that differ from the number mentioned herein.
• values within the limits mentioned are to be understood to be also disclosed and to be used as applicable.
• Fig. 1 a gas cooking appliance comprising a gas cooking appliance device in a schematic plan view
• Fig. 2 a basic body unit, an electronically controllable valve and three further electronically controllable valves of the gas cooking appliance device in a schematic sectional view,
• Fig. 3 the electronically controllable valve of the gas cooking appliance
• Fig. 4 three diagrams in which a duty cycle of a control signal for controlling the valve is shown in a schematic view
• Fig. 5 two diagrams, in each of which a coil current through a valve coil of the valve during an activation-deactivation cycle of a the valve is shown, in a schematic view,
• Fig. 6 an excerpt of an activation circuit and/or input circuit that supplies the valve in a schematic view
• Fig. 7 three diagrams, in which a voltage and a current and an estimated inductance are plotted versus a time in a schematic view
• Fig. 8 steps of a method of an estimation of a state of the valve in a
• Fig. 9 a diagram, in which a current measurement through a shunt resistor of the gas cooking appliance device and an estimation of the position of the valve are plotted versus a time in a schematic view
• Fig. 10 three diagrams, in which a control signal and a position of the plunger of the valve and a state of the valve are plotted versus a time, in a schematic view,
• Fig. 11 three diagrams, in each of which a voltage of the control signal is plotted versus a time, in a schematic view,
• Fig. 12 steps of a method of optimizing a switching operating of the valve in a schematic view
• Fig. 13 an activation circuit and/or input circuit that supplies the valve in a schematic view
• Fig. 14 four diagrams, in which a control signal and a force acting on the plunger of the valve and a velocity of the plunger of the valve and a position of the plunge of the valve are plotted versus a time, in a schematic view, and
• Fig. 15 a basic body unit of an alternative gas cooking appliance device, in a schematic view.
• FIG. 1 shows a gas cooking appliance 50a comprising a gas cooking appliance device 10a.
• the gas cooking appliance device 10a comprises a cooktop 52a.
• the cooktop 52a defines a part of an outer gas cooking appliance housing.
• the gas cooking appliance device 10a comprises five heating zones 54a. Of multiple existing objects, only one is provided with a reference sign in the figures.
• the gas cooking appliance device 10a comprises four burners 56a. For each one of the burners 56a, the gas cooking appliance device 10a comprises a vessel support 58a. In the following, only one of the burners 56a and only one of the vessel supports 58a will be described.
• the vessel support 58a is located on the cooktop 52a, in an operating state. In a vertical view on a main extension plane of the cooktop 52a, the burner 56a is located within an area of the vessel support 58a. In the present embodiment, the burner 56a is located in a center of an area of the vessel support 58a, in a vertical view on a main extension plane of the cooktop 52a.
• the gas cooking appliance device 10a comprises a user interface 60a for inputting and/or selecting operating parameters, for example a heating power and/or a heating power density and/or a heating zone.
• the user interface 60a is configured for outputting a value of an operating parameter to an operator.
• the gas cooking appliance device 10a comprises a control unit 14a.
• the gas cooking appliance device 10a comprises a further control unit 140a.
• the control unit 14a and the further control 140a communicate with each other.
• the user interface 60a communicates with the control unit 14a and with the further control unit 140a.
• the control unit 14a and the further control unit 140a are electrically connected in parallel, in the present embodiment (compare also figure 13). In the following, only one of the control units 14a, 140a will be described with the exception of the description of figure 13, in which both control units 14a, 140a will be described.
• the control unit 14a is configured for executing actions and/or for changing settings in dependence on operating parameters entered by the user interface 60a.
• the control unit 14a regulates an energy supply to the burner 56a, in the operating state.
• the gas cooking appliance device 10a comprises an electronically controllable valve 12a (compare figures 2 and 3). Additionally to the valve 12a, the gas cooking appliance device 10a comprises three further electronically controllable valves 22a. From the further electronically controllable valves 22a only one will be described in the following.
• the gas cooking appliance device 10a comprises an activation circuit and/or input circuit 152a that supplies the valve 12a, in the operating state (compare figures 6 and 13). In the operating state, the control unit 14a operates the valve 12a for adjusting a gas flow averaging over a time period. Further details will be described below.
• the valve 12a is electronically operated, in the operating state, for adjusting a gas flow averaging over a time period, in particular by means of the control unit 14a.
• the gas cooking appliance device 10a comprises a basic body unit 24a (compare figure 2).
• the basic body unit 24a comprises in particular exactly one basic body element 38a.
• the basic body unit 24a and in particular the basic body element 38a is embodied as a block, in particular as a rigid block.
• the basic body unit 24a and in particular the basic body element 38a is embodied from at least one metal to a large part.
• the basic body unit 24a and in particular the basic body element 38a defines a gas chamber 26a and a burner gas outlet 30a for the gas chamber 26a.
• the basic body unit 24a and in particular the basic body element 38a defines a gas inlet 34a for the gas chamber 26a.
• the basic body unit 24a and in particular the basic body element 38a defines a chamber gas outlet 62a for the gas chamber 26a.
• the basic body unit 24a and in particular the basic body element 38a defines a further gas chamber 28a and a further burner gas outlet 32a for the further gas chamber 28a.
• the basic body unit 24a and in particular the basic body element 38a defines a further gas inlet 36a for the further gas chamber 28a.
• the basic body unit 24a and in particular the basic body element 38a defines a further chamber gas outlet 64a for the further gas chamber 28a.
• the gas inlet 34a for the gas chamber 26a is fluid-technically connected to a gas source 66a.
• the chamber gas outlet 62a for the gas chamber 26a and the further gas inlet 36a for the further gas chamber 28a are fluid- technically connected.
• the gas chamber 26a and the further gas chamber 28a are fluid- technically connected, in the operating state.
• the gas chamber 26a and the further gas chamber 28a are hermetically connected to each other in order to avoid gas leakage.
• the gas chamber 26a is hermetically connected to the gas source 66a in order to avoid gas leakage.
• the gas cooking appliance device 10a comprises a gas pipe 48a for each of the gas chambers 26a, 28a (compare figure 2).
• the gas cooking appliance device 10a comprises four gas pipes 48a. In the following, only one of the gas pipes 48a will be described, which is attributed to the gas chamber 26a.
• the gas pipe 48a and the burner gas outlet 30a for the gas chamber 26a are fluid- technically connected.
• the gas chamber 26a is hermetically connected to the gas pipe 48a in order to avoid gas leakage.
• the gas pipe 48a fluid-technically connects the gas chamber 26a and the burner 56a.
• the valve 12a is the last element in a gas line before the burner 56a, in particular before an injector of the burner 56a.
• the valve 12a is attributed to the gas chamber 26a. In the operating state, the valve 12a opens and/or closes the burner gas outlet 30a in particular in dependency of a regulation signal from the control unit 14a.
• the valve 12a is configured for opening and/or closing the burner gas outlet 30a.
• the valve 12a is hermetically attached to the basic body unit 24a and in particular to the basic body element 38a in order to avoid gas leakage.
• the further valve 22a is attributed to the further gas chamber 28a. In the operating state, the further valve 22a opens and/or closes the further burner gas outlet 32a in particular in dependency of a regulation signal from the control unit 14a.
• the further valve 22a is configured for opening and/or closing the further burner gas outlet 32a.
• the further valve 22a is hermetically attached to the basic body unit 24a and in particular to the basic body element 38a in order to avoid gas leakage.
• valve 12a and one of the further valves 22a is in an opened state.
• Two of the further valves 22a are shown in a closed state.
• a gas flow is shown by means of arrows.
• a number of valves 12a, 22a and in particular a number of burners 56a and in particular a number of gas chambers 26a, 28a are identical.
• the basic body unit 24a comprises an accommodation region 42a for accommodating at least one sensor 68a of a sensor unit 16a.
• the basic body unit 24a comprises one accommodation region 42a for one sensor 68a of the sensor unit 16a.
• the basic body unit 24a may in particular comprise at least two, in particular at least three, advantageously at least five, particularly advantageously at least seven, preferably at least ten and particularly preferably a plurality of
• the gas cooking appliance device 10a comprises the sensor unit 16a.
• the sensor unit 16a comprises, in the present embodiment, a sensor 68a, which is embodied as a microphone.
• the sensor unit 16a may in particular comprise at least two, in particular at least three, advantageously at least five, particularly advantageously at least seven, preferably at least ten and particularly preferably a plurality of sensors 68a, each of which may in particular be embodied as a microphone.
• a number of accommodation regions 42a and a number of sensors 68a embodied as microphone are in particular identical.
• the sensor 68a of the sensor unit 16a detects at least one valve parameter of the valve 12a.
• the sensor unit 16a is configured, in the present embodiment, for detecting at least one valve parameter of the valve 12a.
• valve 12a In the case that the valve 12a opens and/or closes, the valve 12a produces a noise.
• the intensity of the noise produced by the valve 12a by opening and/or closing depends on the distance of that particular valve 12a to the sensor 68a embodied as a microphone.
• the valve 12a can be identified on the basis of the noise which is detected by the sensor 68a being a microphone and which is produced by the valve 12a by opening and/or closing.
• a sound delay which depends on the speed of sound through the material of the basic body unit 24a, is considered in the identification of the valve 12a and in particular in the number of sensors 68a being embodied as a microphone and in particular on the disposition of the sensors 68a being embodied as a microphone.
• the valve 12a is embodied as an on-off valve. In the present embodiment, the valve 12a is embodied as a solenoid on-off-valve.
• the further valve 22a is embodied as an on-off valve. In the present embodiment, the further valve 22a is embodied as a solenoid on-off- valve.
• a structure of the valve 12a and a structure of the further valve 22a are identical.
• valve 12a Therefore, for the description of a structure of the valve 12a and the further valve 22a, only the valve 12a will be described.
• the valve 12a comprises a movable plunger 18a (compare figure 3).
• the valve 12a comprises a valve coil 20a.
• the valve coil 20a is configured for adjusting a movement and/or a position of the plunger 18a of the valve 12a.
• the control unit 14a controls a current through the valve coil 20a, in the operating state.
• the control unit 14a For controlling a gas flow to the burner 56a, the control unit 14a operates the valve 12a, in the operating state, by means of pulse width modulation. In the operating state, the control unit 14a operates the valve 12a with a control signal 44a having a duty cycle of minimum 0 % and of maximum 100 % (compare figure 4).
• Figure 4 shows three diagrams, in which a duty cycle of the control signal 44a for controlling the valve 12a is shown.
• the control signal 44a has two control states.
• the control signal 44a has a high level control state and a low level control state. In the high level control state, the valve 12a is in the opened position. In the low level control state, the valve 12a is in the closed position.
• the control signal 44a is shown on an ordinate axis 72a. On n abscissa axis 74a, a time is shown in each of the diagrams in figure 4.
• a control signal 44a having a duty cycle of 0 % is shown.
• a control signal 44a having a duty cycle of 25 % is shown.
• a control signal 44a having a duty cycle of 100 % is shown.
• the control signal 44a has a constant switching period 46a. The average value of the control signal 44a is given by a fraction of time in which the control signal 44a is in the high level control state.
• the control unit 14a operates the valve 12a, in the operating state, via a periodic control signal 44a having a frequency of at least 30 Hz. In the operating state, the control unit 14a operates the valve 12a via a periodic control signal having a frequency of at most 200 Hz.
• Figure 5 shows two diagrams, in each of which a coil current through the valve coil 20a of the valve 12a during an activation-deactivation cycle of the valve 12a is shown.
• a coil current through the valve coil 20a of the valve 12a is shown on an ordinate axis 76a.
• an abscissa axis 78a a time is shown in each of the diagrams of figure 5.
• An activation signal 84a and/or deactivation signal 84a is shown in dashed lines.
• an opening time period 80a of the valve 12a the valve 12a changes its state from the closed state of the valve 12a to the opened state of the valve 12a.
• a closing time period 82a of the valve 12a the valve 12a changes its state from the opened state of the valve 12a to the closed state of the valve 12a.
• the opening time period 80a of the valve 12a is, in the present embodiment, approximately half of the closing time period 82a of the valve 12a.
• the opening time period 80a may be approximately 3 ms and the closing time period 82a may be approximately 6 ms.
• the plunger 18a of the valve 12a is moving. In a lower diagram of figure 5, the plunger 18a of the valve 12a is in a fixed position. A change in an inductance of the valve 12a during the opening time period 80a and the closing time period 82a is observable in the coil current through the valve coil 20a of the valve 12a.
• the control unit 14a estimates an inductance of the valve 12a.
• the sensor unit 16a comprises a sensor 70a being configured for measuring an electrical current through a shunt resistor 86a (compare figure 6).
• the shunt resistor 86a is electrically connected to the valve 12a, in particular to the valve coil 20a of the valve 12a.
• the gas cooking appliance device 10a comprises the shunt resistor 86a.
• the control unit 14a estimates a state of the valve 12a, in the operating state. For an estimation of a state of the valve 12a, the control unit 14a uses a method of an estimation of a state of the valve 12a, in the operating state. Steps of the method of an estimation of a state of the valve 12a are shown in figure 8. In the following, the method of an estimation of a state of the valve 12a will be described.
• the sensor unit 16a measures, in particular by means of the sensor 70a being configured for measuring an electrical current through the shunt resistor 86a, the current through the shunt resistor 86a, in particular in a current measurement step 100a (compare figure 8).
• the shunt resistor 86a is part of the sensor 70a.
• the control unit 14a estimates the inductance of the valve 12a on the basis of the measured current through the shunt resistor 86a, in the operating state.
• the control unit 14a uses a real-time estimation, in the operating state, for the estimation of the inductance of the valve 12a.
• the control unit 14a uses a method named Kalman filter for the estimation of the inductance of the valve 12a.
• the control unit 14a may in particular use a method named reset observer for the estimation of the inductance of the valve 12a.
• Figure 7 shows three diagrams, in which a voltage and a current and an estimated inductance are plotted versus a time. In figure 7, a time period, in which four activation deactivation cycles take place, is shown.
• a voltage of the control signal 44a is shown on an ordinate axis 88a.
• a time is shown in the upper diagram of figure 7.
• a measured current through the shunt resistor 86a is shown on an ordinate axis 92a.
• a time is shown in the middle diagram of figure 7.
• an estimated inductance of the valve 12a is shown on an ordinate axis 96a.
• an abscissa axis 98a a time is shown in the lower diagram of figure 7.
• An estimation of the inductance of the valve 12a which is done by means of the method named Kalman filter, is shown in a continuous line.
• An estimation of the inductance of the valve 12a, which is done by means of the method named reset observer is shown in a dashed line.
• An estimation of the inductance of the valve 12a, which is done offline, is shown in a chain dotted line.
• control unit 14a optimizes a switching operation of the valve 12a, in the operating state, based on at least one previous switching operation of the valve 12a. This can be seen in such a way that the estimation of the inductance of the valve 12a is getting better with an increase in a number of switching operations of the valve 12a.
• the control unit 14a estimates a position of the valve 12a, in particular in a position estimation step 104a.
• the control unit 14a estimates, in the operating state, a position of the valve 12a in real-time.
• the control unit 14a estimates the position of the valve 12a on the basis of the estimated inductance of the valve 12a.
• the control unit 14a estimates the position of the plunger 18a of the valve 12a by means of the inverse function of the function f, in the operating state.
• Figure 9 shows a diagram, in which a current measurement through the shunt resistor 86a and an estimation of the position of the valve 12a are plotted versus a time for a single switching operation of the valve 12a.
• a current measurement through the shunt resistor 86a is shown on an ordinate axis 106a.
• an estimation of the position of the valve 12a is shown on an abscissa axis 108a.
• a time is shown in figure 9.
• An estimation of the position of the valve 12a is shown in a continuous line in figure 9.
• a current measurement through the shunt resistor 86a is shown in a dashed line in figure 9.
• a switching operation of the valve 12a takes place in a switching time period 110a.
• the switching time period 110a in which the plunger 18a of the valve 12a in particular moves from one end position of the plunger 18a to another end position of the plunger 18a, may for example be 2 ms.
• the control unit 14a estimates the state of the valve 12a, in the operating state.
• the control unit 14a estimates, in the operating state, the state of the valve 12a on the basis of the estimated position of the valve 12a.
• the opened state of the valve 12a corresponds to one of the bounds of a motion of the plunger 18a and the closed state corresponds to the other bound of the motion of the plunger 18a.
• the control unit 14a uses, in the operating state, the estimated position of the valve 12a to reduce a speed of the plunger 18a of the valve 12a, in particular to reduce an impulse when the valve 12a reaches one of the bounds of a motion of the plunger 18a of the valve 12a.
• the control unit 14a slows down a speed of the plunger 18a of the valve 12a before the plunger 18a reaches a stable end position of the valve 12a, in particular an opened state of the valve 12a and/or a closed state of the valve 12a.
• the stable end position of the valve 12a is in particular defined in case that the plunger 18a of the valve 12a is located at one of the bounds of the valve 12a.
• the control unit 14a may in particular use a noise produced by the valve 12a during a switching operation of the valve 12a, in particular when the plunger 18a of the valve 12a reaches a stable end position of the valve 12a and/or a bound of the valve 12a.
• the sensor unit 16a may in particular detect, in the operating state, a noise produced by the valve 12a.
• the noise produced by the valve 12a in particular may result from an undesirable bouncing phenomenon that occurs when the plunger 18a impacts with a high velocity.
• the control unit 14a may in particular use the measured noise of the valve 12a, in the operating state, to optimize the switching operation of the valve 12a, in particular by using some offline control strategy. Reducing the speed of the plunger 18 of the valve 12a may in particular result in less bouncing and/or less noise and/or less contact wear.
• the control unit 14a For slowing down a speed of the plunger 18a of the valve 12a before the plunger 18a reaches a stable end position of the valve 12a, the control unit 14a uses, in the operating state, the control signal 44a. In the operating state, the control unit 14a starts a movement of the plunger 18a of the valve 12a by means of an activation pulse 112a of the control signal 44a (compare figure 10). The control unit 14a slows down a speed of the plunger 18a, in the operating state, by means of a counter pulse 114a of the control signal 44a. The counter pulse 114a has a different sign compared to the activation pulse 112a.
• Figure 10 shows three diagrams, in which the control signal 44a and a position of the plunger 18a of the valve 12a and a state of the valve 12a are plotted versus a time.
• a voltage of the control signal 44a is shown on an ordinate axis 116a.
• a time is shown in the upper diagram of figure 10.
• a position of the plunger 18a of the valve 12a is shown on an ordinate axis 120a.
• On an abscissa axis 122a a time is shown in the middle diagram of figure 10.
• a state of the valve 12a is shown on an ordinate axis 124a.
• an abscissa axis 126a a time is shown in the lower diagram of figure 10.
• the control unit 14a may in particular use, in the operating state, an alternative control signal 44a (compare figure 11).
• Figure 11 shows three diagrams, in each of which a voltage of the control signal 44a is plotted versus a time. In each one of the diagrams of figure 11 , a voltage of the control signal 44a is shown on an ordinate axis 128a. On an abscissa axis 130a, a time is shown in each one of the diagrams of figure 11.
• Figure 11 shows three different control signals 44a1 , 44a2, 44a3 which differ in a form of the voltage of the respective control signal 44a1 , 44a2, 44a3.
• the control unit 14a parameterizes the respective control signal 44a1 , 44a2, 44a3 in terms of temporal parameters T1c, T2c, T3c, T4c and voltage parameters V1c, V2c.
• the respective control signal 44a1 , 44a2, 44a3 can in particular be adjusted to make the valve 12a achieve the desired performance.
• the control unit 14a optimizes a switching operation of the valve 12a, in the operating state, based on a previous switching operation of the valve 12a. For the optimization of the switching operation of the valve 12a, the control unit 14a uses, in the operating state, a method of optimizing a switching operation of the valve 12a, which is in particular shown in figure 12. The control unit 14a optimizes continually, in the operating state, a switching operation of the valve 12 by using data of all previous switching operations of the valve 12a.
• control unit 14a chooses, in a parameterization step 132a, a control signal 44a.
• the control unit 14a parameterizes, in particular in the
• the sensor unit 16a measures the sensor parameter, in particular in a switching optimization measurement step 134a. In particular in the switching
• the sensor unit 16a measures the senor parameter by means of the sensor 68a being a microphone.
• the sensor parameter is a noise produced by the valve 12a in a switching operation of the valve 12a.
• the sensor parameter may for example be a current through the shunt resistor 86a, which is in particular related to a current through the valve 12a, in particular through the valve coil 20a.
• control unit 14a defines, in the operating state, a cost function. In the operating state, the control unit 14a transforms the measured sensor parameter(s) into a single value to be minimized.
• control unit 14a uses, in the operating state, an optimization algorithm for optimizing the switching operation of the valve 12a based on previous switching operations of the valve 12a.
• the optimization algorithm is based on the sensor parameter(s).
• the control unit 14a optimizes, in the operating state, the cost function by means of the optimization algorithm. In the operating state, the control unit 14a calculates at least one optimized parameter for a
• the control unit 14a returns, in the operating state, from the optimization algorithm step 138a to the switching optimization measurement step 134a. In the operating state, the control unit 14a continuously repeats the method of optimizing a switching operation of the valve 12a, thereby in particular improving a switching operation of the valve 12a with an increasing number of switching operations of the valve 12a.
• the control unit 14a distinguishes between an opening operation of the valve 12a and a closing operation of the valve 12a. In the operating state, the control unit 14a uses simultaneously one method of optimizing a switching operating of the valve 12a for the closing operation of the valve 12a and for the opening operation of the valve 12a.
• the method of optimizing a switching operating of the valve 12a may in particular be free of any model, thereby problems related to a precision of the models can in particular be avoided.
• the gas cooking appliance device 10a comprises at least one security unit 142a for avoiding an undesirable gas leakage (compare figure 13).
• the gas cooking appliance device 10a comprises a security unit 142a for each burner 56a.
• control unit 14a and the further control unit 140a are configured to close the valve 12a by means of the security unit 142a in case of an electrical defect.
• the sensor unit 16a comprises a sensor 144a being a thermocouple.
• the sensor 144a being a thermocouple detects, in the operating state, an extinguishing of a flame of the burner 56a. In the operating state, the sensor 144a being a thermocouple transmits a sensor output signal to the control unit 14a and to the further control unit 140a.
• the sensor 144a being a thermocouple transmits a sensor output signal being in a first state in case that a flame of the burner 56a is active, in the operating state. In the operating state, in case that the sensor 144a being a thermocouple detects an
• the sensor 144a transmits a sensor output signal being in a second state which differs from the first state.
• the gas cooking appliance device 10a comprises at least one amplifier 146a (compare figure 13).
• the gas cooking appliance device 10a comprises an amplifier 146a.
• the sensor 144a being a thermocouple is electrically connected to the control unit 14a and/or to the further control unit 140a via the amplifier 146a.
• the amplifier 146a amplifies the sensor output signal transmitted from the sensor 144a being a thermocouple.
• the control unit 14a and/or the further control unit 140a closes the valve 12a by means of the security unit 142a on the basis of the sensor output signal received from the sensor 144a being a thermocouple. In the operating state, the control unit 14a and/or the further control unit 140a closes the valve 12a by means of the security unit 142a in case of receiving the second sensor output signal.
• the security unit 142a comprises, in the present embodiment, a switching element for each control unit 14a, 140a.
• the security unit 142a comprises, in the present
• a first switching element 148a being controllable by means of the control unit 14a.
• the security unit 142a comprises, in the present embodiment, a second switching element 150a being controllable by means of the further control unit 140a.
• the wording“switching element”, in particular without numeration, should in particular be referred to the first switching element 148a and/or to the second switching element 150a. Only in case that a differentiation is necessary, the switching elements 148a, 150a will be described separately.
• the switching element 148a opens and/or closes the activation circuit and/or input circuit 152a that supplies the valve 12a.
• the switching element 148a is embodied as a transistor.
• the security unit 142a comprises a dynamic activation circuit 154a, 156a for each switching element 148a, 150a.
• the security unit 142a comprises a first dynamic activation circuit 154a being electrically connected to the first switching element 148a and to the control unit 14a.
• the first dynamic activation circuit 154a is electrically located between the control unit 14a and the first switching element 148a.
• the security 142a comprises a second dynamic activation circuit 156a being electrically connected to the second switching element 150a and to the further control unit 140a.
• the second dynamic activation circuit 156a is electrically located between the further control unit 140a and the second switching element 150a.
• the control unit 14a In case of the first sensor control signal, the control unit 14a generates a periodic control signal 44a of a certain frequency.
• the control signal 44a generated by the control unit 14a in particular in case of the first sensor control signal, is filtered and/or rectified by the first dynamic activation circuit 154a.
• the first dynamic activation circuit 154a saturates the first switching element 148a, in particular in case of the first sensor control signal.
• the dynamic activation circuit 154a eliminates the control signal 44a in order to close the first switching element 148a, in the operating state.
• the further control unit 140a controls a gas flow generating signal in order to control the second switching element 150a.
• the second switching element 150a opens and/or closes the activation circuit and/or input circuit 152a that supplies the valve 12a, thereby in particular opening and/or closing the valve 12a.
• Any switching element 148a, 150a in particular the first switching element 148a and the second switching element 150a, closes the activation circuit and/or input 152a circuit that supplies the valve 12a in case the other switching element 148a, 150a fails and creates a short circuit.
• a voltage of the shunt resistor 86a which is proportional to a current through the valve coil 20a, is sent to the control unit 14a in order to ensure that the plunger 18a of the valve 12a is moving as expected meaning that the further control unit 140a is working correctly.
• a voltage of the shunt resistor 86a which is proportional to a current through the valve coil 20a, is sent to the second control unit 140a in order to properly control the plunger 18a of the valve 12a.
• Figure 14 shows an example, in which a slowing down of the speed of the plunger 18a can be seen.
• a voltage of the control signal 44a is shown on an ordinate axis 158a.
• On an abscissa axis 160a, a time is shown in the first diagram of figure 14.
• An activation pulse 112a of the control signal 44a has a duration of a first time period 176a.
• the control signal 44a has a duration of a second time period 178a.
• the first time period 176a is shorter than the second time period 178a.
• the first time period 176a is substantially 10 % of the second time period 178a.
• a second diagram of figure 14 an in particular magnetic force acting on the plunger 18a of the valve 12a is shown on an ordinate axis 162a.
• the force acting on the plunger 18a of the valve 12a is shown in a continuous line.
• a force of a spring 174a of the valve 12a is shown on the ordinate axis 162a of the second diagram of figure 14.
• the force of the spring 174a of the valve 12a is shown in a dashed line.
• a time is shown in the second diagram of figure 14.
• a velocity of the plunger 18a of the valve 12a is shown on an ordinate axis 166a.
• a time is shown in the third diagram of figure 14. It can be seen that the speed of the plunger 18a increases due to the activation pulse 112a of the control signal 44a, in particular starting from a speed of substantially zero at a first bound of the valve 12a. The velocity of the plunger 18a slows continuously down until it reaches a second bound of the valve 12a.
• a position of the plunger 18a of the valve 12a is shown on an ordinate axis 170a.
• a time is shown in the fourth diagram of figure 14.
• the velocity of the plunger 18a slows continuously down until it reaches a second bound of the valve 12a.
• the noise and the wear produced by the valve 12a during a switching operation of the valve 12a are proportional to a kinetic energy of the plunger 18a of the valve 12a when the plunger 18a arrives one of the bounds of the valve 12a.
• the kinetic energy of the plunger 18a of the valve 12a is proportional to a mass of the plunger 18a and to a square of the velocity of the plunger 18a
• the noise and the wear produced by the valve 12a can in particular be reduced by reducing the kinetic energy of the plunger 18a and/or by reducing the velocity of the plunger 18a.
• Figure 15 shows a further exemplary embodiment of the invention.
• the following description is substantially limited to the differences between the exemplary embodiments, wherein regarding structural elements, features and functions that remain the same the description of the other exemplary embodiments, in particular the exemplary embodiment of figures 1 to 14, may be referred to.
• the letter a of the reference numerals in the exemplary embodiment of figures 1 to 14 has been substituted by the letter b in the reference numerals of the exemplary embodiments of figure 15.
• structural elements having the same denomination in particular regarding structural elements having the same reference numerals, principally the drawing and/or the description of the other exemplary embodiments, in particular of the exemplary embodiment of figures 1 to 14, may be referred to.
• FIG 15 shows a basic body unit 24b of an alternative gas cooking appliance device 10b.
• the gas cooking appliance device 10b comprises a number of N burners 56b.
• the basic body unit 24b comprises, in the present embodiment, a number of N-1 basic body elements 38b.
• the basic body elements 38b are identical. Therefore, only one of the basic body elements 38b will be described in the following.
• the basic body unit 24b and in particular the basic body element 38b defines a gas chamber 26b and a burner gas outlet 30b for the gas chamber 26b.
• the basic body unit 24b and in particular the basic body element 38b defines a gas inlet 34b for the gas chamber 26b.
• the basic body unit 24b and in particular the basic body element 38b defines a chamber gas outlet 62b for the gas chamber 26b.
• the basic body unit 24b comprises a second basic body element 40b.
• the second basic body element 40b differs from the basic body element 38b in that the basic body element 38b defines a chamber gas outlet 62b wherein the second basic body element 40b is free of a chamber gas outlet 62b.
• the second basic body element 40b is embodied as an end piece.
• the basic body unit 24b is of a modular fashion.
• Several basic body elements 38b, 40b can be combined in a flexible fashion.
• a number of N-1 basic body elements 38b and one second basic body element 40b may in particular be combined and preferably fluid-technically connected to each other.

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• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Feeding And Controlling Fuel (AREA)

Applications Claiming Priority (2)

Publications (1)

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• 2018
  • 2018-05-16 ES ES201830469A patent/ES2731680A1/es not_active Withdrawn
• 2019
  • 2019-04-29 CN CN201980047576.4A patent/CN112424531A/zh active Pending
  • 2019-04-29 EP EP19723881.9A patent/EP3794284A1/en active Pending
  • 2019-04-29 WO PCT/IB2019/053479 patent/WO2019220247A1/en unknown

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