WO2018134299A1 - Procede et dispositif de chauffage d'un organe de vehicule - Google Patents
Procede et dispositif de chauffage d'un organe de vehicule Download PDFInfo
- Publication number
- WO2018134299A1 WO2018134299A1 PCT/EP2018/051196 EP2018051196W WO2018134299A1 WO 2018134299 A1 WO2018134299 A1 WO 2018134299A1 EP 2018051196 W EP2018051196 W EP 2018051196W WO 2018134299 A1 WO2018134299 A1 WO 2018134299A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heating unit
- electric heating
- electrical
- temperature
- electrical energy
- 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.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/04—Hand wheels
- B62D1/06—Rims, e.g. with heating means; Rim covers
- B62D1/065—Steering wheels with heating and ventilating means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/56—Heating or ventilating devices
- B60N2/5678—Heating or ventilating devices characterised by electrical systems
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
- H05B1/023—Industrial applications
- H05B1/0236—Industrial applications for vehicles
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
- H05B1/023—Industrial applications
- H05B1/0236—Industrial applications for vehicles
- H05B1/0238—For seats
Definitions
- the present invention generally relates to a method and a device for heating a vehicle member, such as a heated steering wheel, or a heated seat.
- An object of the present invention is to meet the disadvantages of the documents of the prior art mentioned above and in particular, first of all, to propose a method and a device for heating a vehicle member, which allows a special temperature setting of a zone or limited surface of the organ, while remaining simple to manufacture and without consuming too much electricity.
- a first aspect of the invention concerns a method of heating a vehicle member such as a steering wheel or a seat, comprising at least a first electric heating unit and at least a second electric heating unit, the method comprising:
- a first step with a step of supplying an electric current to said at least one first electric heating unit until at least one priority zone of the member reaches a temperature setpoint, and with a phase consisting of determining a first electrical energy supplied to said at least one first electric heating unit to reach the temperature setpoint,
- a second step with at least one phase consisting in delivering to said at least one second electric heating unit a second energy electrical, calculated on the basis of the first electrical energy supplied to said at least one first electric heating unit during the first step.
- the method according to the invention proposes to feed the second heating unit during the second step only taking into account the energy supplied to the first heating unit, which simplifies the overall architecture (no need for temperature sensor on the zone heated by the second heating unit).
- the method therefore calculates the integral as a function of time of the electric power supplied to the first unit to determine the first energy supplied.
- the method defines either the heating time (if the heating power is predetermined), or the heating power (if the heating time is predetermined) applied to the second heating unit, to provide totally the second energy to the second unit. It is also possible to consider updating the calculation of the heating time or the heating power during the second step if, for example, the available power varies during this second step.
- said at least one first electric heating unit is arranged to heat said at least one priority zone, and said at least one second electric heating unit is arranged to heat another zone of the organ than the priority zone.
- the first step consists in supplying most of the current to said at least one first electric heating unit.
- the second step comprises at least one phase of supplying an electric current to said at least first electric heating unit to maintain said at least one priority zone of the organ at the temperature setpoint. It can be considered to supply the first heating unit if it is necessary to maintain the temperature at a minimum value, as for example if this second step lasts a long time. This temperature maintenance requires only a small amount of current, the priority being able to go to the second heating unit.
- a supply line defining a maximum power supply, being provided for supplying said at least one first electric heating unit and said at least one second electric heating unit, and:
- said at least one first electric heating unit receives at most a predetermined portion of the maximum power supply, and said at least one second electric heating unit receives the available complement of the maximum power supply.
- Such a distribution of the powers allocated to the two units makes it possible to optimize the rate of rise in temperature of the other zone without the temperature regulation of the priority zone being affected.
- the power available for the other zone during the second step is variable with a guaranteed minimum: if during the regulation of the priority zone, the first unit does not consume electrical power, this electrical power not consumed by the first unit is assigned to the second unit which allows it to heat up faster.
- the regulation of the priority zone is not affected because a given electrical power is allocated to it in priority if necessary.
- the priority zone has a part of the available power, up to a ceiling, and then the other zone benefits from the complement (the rest of the available power), but the priority zone can also not consume nothing if the temperature is within the limits of the regulation and in this case, all the available power is allocated to the other zone. For example, if heating units are equivalent or equal, feed the first unit with not more than 50% of the maximum power available to maintain the priority temperature zone.
- said at least one first electric heating unit receives at least 60% of the maximum power supply, and / or said at least one second electric heating unit is powered with at most 40% of the maximum power supply.
- said at least one first electric heating unit is supplied with at least 70% of the maximum power supply, and the applicant has found that this value makes it possible to arrive quickly at the set temperature. without degrading too much the heating of other areas of the body by said at least a second heating unit.
- this first step there is no power assignment from one unit to another, each consuming the power allocated to it.
- said at least one second electric heating unit is powered by taking into account only the first electrical energy supplied to said at least one first electric heating unit during the first step, possibly modulated by a multiplying coefficient of heater. That is, the method only follows this parameter to supply current to the second heating unit. This eliminates the need for a temperature sensor for the second heating unit.
- the multiplying coefficient may be fixed or variable, for example depending on the temperature inside the vehicle.
- the multiplying coefficient may or may not take into account the power delivered to the first unit which could affect the heating of the second zone when the two zones are close to one another.
- the heating method comprises a third step, starting after the complete supply of the second energy electrically to said at least one second electric heating unit, and consisting of:
- said at least one first electric heating unit comprises a first electrical resistance
- said at least one second electric heating unit comprises a second electrical resistance
- the second electrical holding power supplied to said at least one second electric heating unit is equal to the first electrical holding power modulated by a ratio of the value of the second electrical resistance divided by the value of the first electrical resistance. It is possible to modulate the second electrical holding power with respect to the first electrical holding power only with the resistance ratio, but it is also possible to modulate the second electrical holding power also with a surface coefficient covered by the units. heating, a coefficient of thermal conduction ...
- said at least one first electric heating unit comprises a first electrical resistance
- said at least one second electric heating unit comprises a second electrical resistance
- the second electrical energy is equal to the first energy.
- any step of measuring a temperature during the first step or during the second step is a step of measuring a temperature of said at least one priority zone.
- the heating method therefore only takes into account the temperature of the priority zone for controlling the heating units.
- the first step is implemented only if the set temperature is higher by more than 15 ° C with respect to the temperature of said at least one priority zone. For example, it is possible to provide an automatic start of the heating process if such a difference in temperature is observed.
- a second aspect of the invention relates to a device for heating a vehicle member such as a steering wheel or a seat, comprising:
- control unit arranged to control said at least one first electric heating unit and said at least one second electric heating unit
- At least one temperature sensor arranged to measure a temperature of a priority zone of the organ
- the heating device comprises as sole temperature sensor said at least one temperature sensor.
- a third aspect of the invention relates to a vehicle steering wheel comprising a heater according to the second aspect, and / or arranged to be heated by the method according to the first aspect.
- a fourth aspect of the invention relates to a vehicle seat comprising a heater according to the second aspect, and / or arranged to be heated by the method according to the first aspect.
- a fifth aspect of the invention relates to a motor vehicle having a vehicle steering wheel according to the third aspect and / or at least one seat according to the fourth aspect.
- FIG. 1 shows a simplified view of a heating wheel comprising a heating device according to the present invention, adapted to implement the heating method according to the present invention
- FIG. 2 represents a diagram of the temperatures measured on the steering wheel of FIG. 1, when the method according to the present invention is implemented;
- FIG. 3 represents a heating layer for a heating device according to the invention;
- FIG. 4 represents an exemplary supply of current during a first step of the method according to the invention.
- FIG. 1 represents a steering wheel comprising:
- a hub arranged to fix the steering wheel on a steering column
- the rim includes two priority zones 10, and two other zones
- a first priority zone 10 is arranged substantially at 10 o'clock, and a second priority zone 10 is arranged at 14 o'clock.
- the two priority areas 10 are arranged where the driver places his hands most often when driving the vehicle (position "10:10").
- the heating device according to the invention comprises:
- a second heating unit arranged in the rim at the other two zones 20.
- a resistive sheet 30 as shown schematically in FIG. 3, with two electrical resistors each localized opposite the areas to be heated (a first electrical resistance R1 facing the priority areas 10, and a second electrical resistance R2 opposite the other zones 20).
- first electrical resistance R1 facing the priority areas 10
- second electrical resistance R2 opposite the other zones 20.
- the power supply PA is limited to a maximum power supply PMA and it is imperative to calibrate the total value of heating resistors R1 and R2 R1 and R2 depending on this maximum power supply. Taking into account this constraint, the invention proposes to feed the first resistance of R1 and the second resistance R2 according to a particular strategy, to however quickly heat the priority areas 10.
- FIG. 2 represents an example of heating implementing the method according to the present invention.
- the ordinate axis is that of the temperatures measured at the surface of a steering wheel equipped with a heating device according to the present invention, and the abscissa axis represents the time.
- the solid line curve represents the temperature at the priority zones 10, to the right of the first resistor R1, and the dashed line curve represents the temperature at the other zones 20, to the right of the second resistor R2.
- a temperature set point C is defined between two horizontal lines, for example between 25 ° C and 28 ° C. If the vehicle steering wheel is cold (eg 0 ° C), then the heating process can be started either automatically or by the driver.
- the first resistor R1 is energized so as to receive a first electrical power P1 which is a majority of the maximum power supply PMA (for example 70% of the maximum power supply PMA ), and the rest of the available supply power PA is sent to the second resistor R2 (30% of the maximum power supply PMA, so in the example here) as the second electrical power P2.
- PMA P1 + P2.
- the heating process also counts a first electrical energy EE1 supplied to the first resistor R1. (EE1, in joules, is the product of the first electrical power P1 in watts by the time (t1-t0) in seconds).
- the priority zones 10 are at the temperature setpoint C, and then begins a second step of regulating the first resistor R1 to maintain this temperature setpoint.
- a maximum predefined power is available for the first resistance.
- the electrical energy sent to this second resistor R2 is a second electrical energy EE2, calculated on the basis of the first electrical energy EE1 determined during the first step. In fact, this first electrical energy has made it possible to bring the priority zones 10 to the temperature set point C with temperature measurement, it is therefore reliable to take this first electrical energy EE1 into account to determine the amount of energy to be supplied. at the second resistance R2.
- the first electrical energy EE1 it is possible to weight the first electrical energy EE1 to find the second electrical energy EE2, as a function of a ratio of the resistance R2 / R1, or a surface ratio to be heated, another experimental ratio or the internal temperature of the vehicle or the temperature of the resistors for example. Parameters related to the structure of the steering wheel such as the presence of decorative elements made of different materials can also be taken into account.
- the first resistor R1 it is fed only to maintain the temperature setpoint. It can then limit its power to 50% or less of the maximum power supply, and even power the second resistance R2 with all the power when the first resistor R1 does not need to be powered, as between time t1 and time t2. Between the time t2 and the time t3, the first resistor R1 needs to be powered, which decreases the energy input to the second electrical resistance R2, and its temperature rises less rapidly. However, at time t3, all the electrical energy EE2 has been delivered to the second electrical resistance R2, and this is therefore at the set temperature.
- the method according to the invention does not take into account the temperature in the other zones 20. Only the temperature at the priority zones is taken into account, to drive the first electrical resistance R1, and only the first one. EE1 electrical energy is taken into account to drive the second electrical resistance during the second step between t1 and Î3, after deduction of the need for regulation / maintenance temperature of the first electrical resistance R1.
- a third step begins, that of keeping in temperature setpoint of the entire steering wheel.
- the first electrical resistance R1 is driven as a function of its temperature, and the second electrical resistance R2 is driven in the same way as the first resistor R1, simply by multiplying the power P1 by a holding coefficient, to determine the power P2 to provide.
- the second electrical power P2 is an affine function of the first electrical power P1 supplied to the first electrical resistance R1.
- R1 and R2 are of the same value, or each must heat an equivalent surface and the flywheel is similarly constructed in the two zones to be heated, it is conceivable to provide the same electrical power to the two resistors R1 and R2. Thus, it is possible to guarantee that the two zones will be maintained in temperature in the same interval by using only one temperature sensor.
- FIG. 4 represents an example of power supply of the resistors R1 and R2 during the first heating step.
- T1 a period of time
- the first resistor R1 is supplied with all the available electrical power between the beginning of the period up to 70% of this period T1.
- the resistance R2 which is supplied with all the electric power available until the end of the period T1.
- the first resistor R1 receives about 70% of all the available power
- the second resistor R2 receives the complement, that is to say about 30% of all the available power. This principle can obviously be repeated during the second step and / or during the third heating step of the method according to the invention.
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Aviation & Aerospace Engineering (AREA)
- Steering Controls (AREA)
- Air-Conditioning For Vehicles (AREA)
- Seats For Vehicles (AREA)
- Control Of Resistance Heating (AREA)
Abstract
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201880014477.1A CN110352154A (zh) | 2017-01-19 | 2018-01-18 | 用于加热车辆构件的方法和装置 |
| KR1020197023259A KR20190108591A (ko) | 2017-01-19 | 2018-01-18 | 차량 부재를 가열하기 위한 방법 및 장치 |
| DE112018000268.3T DE112018000268B4 (de) | 2017-01-19 | 2018-01-18 | Verfahren zum beheizen eines fahrzeuglenkrads |
| US16/479,349 US11479287B2 (en) | 2017-01-19 | 2018-01-18 | Method and device for heating a vehicle member |
| JP2019538177A JP6910448B2 (ja) | 2017-01-19 | 2018-01-18 | 車両部材を加熱するための方法及び装置 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1750397A FR3061890B1 (fr) | 2017-01-19 | 2017-01-19 | Procede et dispositif de chauffage d'un organe de vehicule |
| FR1750397 | 2017-01-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2018134299A1 true WO2018134299A1 (fr) | 2018-07-26 |
Family
ID=58162946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2018/051196 Ceased WO2018134299A1 (fr) | 2017-01-19 | 2018-01-18 | Procede et dispositif de chauffage d'un organe de vehicule |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US11479287B2 (fr) |
| JP (1) | JP6910448B2 (fr) |
| KR (1) | KR20190108591A (fr) |
| CN (1) | CN110352154A (fr) |
| DE (1) | DE112018000268B4 (fr) |
| FR (1) | FR3061890B1 (fr) |
| WO (1) | WO2018134299A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3106326B1 (fr) | 2020-01-16 | 2022-09-16 | Autoliv Dev | Volant de véhicule avec dispositif de chauffage |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008020391A1 (de) * | 2007-06-26 | 2009-01-02 | Lear Corporation, Southfield | Heizmatte mit reduziertem Stromverbrauch |
| WO2012170527A2 (fr) * | 2011-06-06 | 2012-12-13 | Autoliv Asp, Inc. | Système de chauffage d'un volant par une peinture à base de polymère et de carbone |
| US20150028015A1 (en) * | 2013-07-24 | 2015-01-29 | Youngmin Hi-Tech Co., Ltd. | Heating system for steering wheel |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7477969B2 (en) * | 2003-10-02 | 2009-01-13 | W.E.T. Automotive Systems Ag | Temperature conditioned assembly having a controller in communication with a temperature sensor |
| JP5223357B2 (ja) * | 2008-01-29 | 2013-06-26 | 日産自動車株式会社 | 車両用座席加熱装置 |
| JP5526519B2 (ja) * | 2008-09-25 | 2014-06-18 | 豊田合成株式会社 | ステアリングホイール |
| JP2010089628A (ja) * | 2008-10-08 | 2010-04-22 | Panasonic Corp | 暖房装置 |
| US8983732B2 (en) | 2010-04-02 | 2015-03-17 | Tk Holdings Inc. | Steering wheel with hand pressure sensing |
| US20120055914A1 (en) * | 2010-09-08 | 2012-03-08 | Goto Denish Co.,Ltd. | Seat heater and seat with seat heater using sheet heating element |
| US8606680B2 (en) * | 2011-06-06 | 2013-12-10 | Drw Innovations, Llc | Method for trading and clearing variance swaps |
| GB2507268A (en) * | 2012-10-23 | 2014-04-30 | Ford Global Tech Llc | Fast heat steering wheel |
| WO2014111740A1 (fr) * | 2013-01-15 | 2014-07-24 | Kongsberg Automotive Ab | Ensemble siège comportant un élément de chauffage assurant un chauffage électrique de température variable le long d'un trajet prédéterminé vers une zone |
| DE112014000795T5 (de) | 2013-02-13 | 2015-10-29 | Tk Holdings Inc. | Lenkradhanderkennungssysteme |
| CN203344774U (zh) * | 2013-05-23 | 2013-12-18 | 廊坊市金色时光科技发展有限公司 | 一种座椅电加热装置 |
| KR101566735B1 (ko) * | 2013-12-05 | 2015-11-06 | 현대자동차 주식회사 | 하이브리드 차량의 실내 난방 방법 및 장치 |
| US10182469B2 (en) * | 2014-09-16 | 2019-01-15 | Ford Global Technologies, Llc | Steering wheel heating system |
| JP6277923B2 (ja) * | 2014-09-29 | 2018-02-14 | 豊田合成株式会社 | ステアリングホイールの温度制御方法 |
| CN204483574U (zh) * | 2015-02-13 | 2015-07-22 | 重庆交通大学 | 加热座椅 |
| JP6431800B2 (ja) | 2015-03-27 | 2018-11-28 | テイ・エス テック株式会社 | 乗物用シート |
| US20180257457A1 (en) * | 2017-03-07 | 2018-09-13 | Ford Global Technologies, Llc | Multiple modes of applying heat to a vehicle device with a heating element |
-
2017
- 2017-01-19 FR FR1750397A patent/FR3061890B1/fr active Active
-
2018
- 2018-01-18 WO PCT/EP2018/051196 patent/WO2018134299A1/fr not_active Ceased
- 2018-01-18 KR KR1020197023259A patent/KR20190108591A/ko not_active Ceased
- 2018-01-18 US US16/479,349 patent/US11479287B2/en active Active
- 2018-01-18 DE DE112018000268.3T patent/DE112018000268B4/de active Active
- 2018-01-18 CN CN201880014477.1A patent/CN110352154A/zh active Pending
- 2018-01-18 JP JP2019538177A patent/JP6910448B2/ja active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008020391A1 (de) * | 2007-06-26 | 2009-01-02 | Lear Corporation, Southfield | Heizmatte mit reduziertem Stromverbrauch |
| US8066324B2 (en) | 2007-06-26 | 2011-11-29 | Lear Corporation | Reduced power heat mat |
| WO2012170527A2 (fr) * | 2011-06-06 | 2012-12-13 | Autoliv Asp, Inc. | Système de chauffage d'un volant par une peinture à base de polymère et de carbone |
| US20150028015A1 (en) * | 2013-07-24 | 2015-01-29 | Youngmin Hi-Tech Co., Ltd. | Heating system for steering wheel |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2020507501A (ja) | 2020-03-12 |
| FR3061890B1 (fr) | 2019-03-15 |
| FR3061890A1 (fr) | 2018-07-20 |
| JP6910448B2 (ja) | 2021-07-28 |
| CN110352154A (zh) | 2019-10-18 |
| DE112018000268B4 (de) | 2025-06-12 |
| US11479287B2 (en) | 2022-10-25 |
| KR20190108591A (ko) | 2019-09-24 |
| DE112018000268T5 (de) | 2019-09-12 |
| US20190351931A1 (en) | 2019-11-21 |
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