WO2014202293A1 - Commande d'un circuit de chauffage electrique, notamment pour vehicule automobile - Google Patents
Commande d'un circuit de chauffage electrique, notamment pour vehicule automobile Download PDFInfo
- Publication number
- WO2014202293A1 WO2014202293A1 PCT/EP2014/060031 EP2014060031W WO2014202293A1 WO 2014202293 A1 WO2014202293 A1 WO 2014202293A1 EP 2014060031 W EP2014060031 W EP 2014060031W WO 2014202293 A1 WO2014202293 A1 WO 2014202293A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pwm
- control
- electronic switch
- heating
- signal
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating devices
- B60H1/22—Heating, cooling or ventilating devices the heat source being other than the propulsion plant
- B60H1/2215—Heating, cooling or ventilating devices the heat source being other than the propulsion plant the heat being derived from electric heaters
- B60H1/2218—Heating, cooling or ventilating devices the heat source being other than the propulsion plant the heat being derived from electric heaters controlling the operation of electric heaters
-
- 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
Definitions
- the present invention generally relates to the control of an electric heating circuit having a plurality of heating elements connected in parallel.
- the invention particularly relates to the field of the automobile in which it is known to install an electric heating circuit (heater or additional radiator) in the heating, ventilation and air conditioning system of a heat engine vehicle to provide heating rapid cockpit at the beginning of operation of the vehicle, and before the engine thermal itself ensures such heating.
- the electric heater is used especially to heat the water in the vehicle cooling system. It generally comprises a plurality of heating resistive elements connected in parallel, preferably CTP elements (Positive Temperature Coefficient), which must be controlled according to an operating instruction.
- the electric heaters with on-board electronics have an operating setpoint that can be of three types:
- PWM radiators initials in French for "Pulse Width Modulation" or PWM (English initials set for "Pulse Width Modulation"
- PWM English initials set for "Pulse Width Modulation”
- a single setpoint wire is used to bring the setpoint power in the form of a low frequency PWM signal (typically of the order of a few tens or hundreds of Hertz).
- the latter comprises a microcontroller that interprets the received power setpoint and proportionally (or according to a more complex law) driver the heating elements, generally also using PWM control signals at lower frequencies than the PWM signal used for the setpoint. power. In this case, the control is not done element by element.
- this solution is expensive given the need to have a microcontroller.
- the object of the present invention is to propose a solution that makes it possible to combine the advantages offered by the known solutions, without presenting the disadvantages thereof.
- the proposed solution allows the controller to control the heating circuit from a PWM setpoint signal received on a single setpoint wire, without resorting to a microcontroller.
- the present invention fulfills this objective by proposing a method for controlling an electric heating circuit comprising a number N of heating elements connected in parallel, each heating element being able to be connected in series with an associated electronic switch, the process comprising the following steps:
- each comparison signal used to control a switchover of the associated electronic switch at least one heating element in the open or closed position.
- each comparison signal serves to control the electronic switch associated with a single heating element.
- the comparison signal generated is able to:
- the subject of the invention is also a device for controlling an electric heating circuit comprising a number N of heating elements connected in parallel, the control device comprising:
- an electronic reception module able to receive a power setpoint in the form of a control signal PWM of variable duty cycle according to the power
- each comparison signal used to control a switchover of the electronic switch associated with at least one heating element in the open or closed position.
- control device may further comprise means for generating the P threshold values.
- These means comprise for example a divider bridge with P + 1 resistors in series, under a reference voltage, each point of connection between two resistors of the divider bridge giving an increasing threshold value between two successive connection points.
- each comparator of the device is capable of delivering a comparison signal itself capable of: - Control a switch of the associated electronic switch in the open position if the average value extracted is less than the threshold value;
- FIG. 1 illustrates in the form of a simplified block diagram an example of a control device according to the present invention
- FIG. 2 illustrates steps implemented by the control device according to the present invention
- FIG. 3 gives an example of implementation of a subassembly included in the control device of FIG. 1 for the generation of reference direct voltages
- FIG. 4 gives an example of implementation of another subassembly included in the control device of FIG. 1.
- FIG. 1 illustrates, in simplified form, an exemplary embodiment of a device 1 for controlling a heating circuit 2, from a power setpoint received in the form of a PWM signal on a setpoint wire.
- the heating circuit 2 is here composed of three heating resistors 21, 22, 23, preferably CTP resistors, connected in parallel.
- the control device 1 comprises, in a conventional manner, three electronic switches T1, T 2 and T3, for example three MOS power transistors, each being able to be connected in series with one of the three resistors 21, 22, 23 of heating, and to allow or prevent a current to flow through these resistors according to their closed or open state.
- the PWM signal is a periodic signal of constant period T, corresponding to a frequency of the order of a few tens of Hertz. At During a period T, the PWM signal alternates between a high level and a low level. The characteristics of this alternation make it possible to inform the device 1 of the power instructions to be applied.
- the PWM signal can be delivered by the output of a bipolar or MOS transistor used as an emitter (respectively source) open.
- the PWM signal is output from the output of a pair of push-pull mounted transistors.
- the two ways of generating the PWM signal are equivalent from the point of view of the present invention.
- the required operating power is communicated thanks to the duty cycle of the PWM signal, this duty cycle being defined as the period of high maintenance over the period of the PWM signal.
- the required operating power is imparted by the negative duty cycle of the PWM signal, which negative duty cycle is defined as the low hold time over the period of the PWM signal.
- the PWM signal comes from an open collector or drain transistor, and that the required power is communicated by the negative duty cycle.
- the higher the negative duty cycle the greater the power required.
- a variation between 5% and 95% of the negative duty cycle will correspond to a variation of 100% to 0% of the maximum heating power, the maximum heating power being obtained when all the heating resistors 21-23 are simultaneously Operating.
- the PWM signal is first received, during a step 100, by the control device 1 at a receiving electronic module connector.
- this PWM signal corresponds to the output of a bipolar or MOS transistor with an open collector or drain
- a pull-up resistor 11 of a pull-up circuit is conventionally used to draw the PWM signal towards a reference voltage. , for example 5 volts.
- the shape of the PWM signal is schematically illustrated below the pulling resistor 11.
- the device 1 will then transform the received PWM signal into a quasi-constant signal whose value is substantially proportional to the duty cycle (in the negative example) of the PWM signal.
- the device 1 will extract, during an extraction step 110, the average value PWM PWM control signal PWM received.
- This can be obtained very simply by using as extraction means a low-pass RC filter whose time constant is much greater than the period T of the PWM signal.
- a resistor whose value is of the order of 4.7 KOhms, and a capacitor whose capacity is of the order of 10 pFarads.
- the PWM averaged signal will then be compared three times
- Steps 120, 130 and 140 in FIG. 2 with three threshold values Refi, Ref 2 and
- the device 1 comprises means 13 for generating the three threshold values, as well as three comparators Ci, C 2 , C3, each comparator Q (integer i varying from 1 to 3) having its output connected to the input ( here the gate) of the transistor T ,.
- the means 13 for generating the three threshold values can be produced very simply from a divider bridge comprising four resistors R6 to R9 in series, under the reference voltage. Each point of connection between two resistors gives a threshold value Refi, Ref 2 and Ref3 such that
- the resistors R6 to R9 preferably have the same value so as to give an identical weight to each of the heating resistors 21 to 23.
- the signals S1 to S3 of comparison generated at the output of the comparators Ci to C 3 will be used to control a switchover of the electronic switch T1 to T3 associated with at least one heating element in the open or closed position.
- the signal S, (i varying from 1 to 3) of comparison generated at the output of the comparator is able to:
- the control device 1 thus makes it possible to discretize the received PWM signal in a few power levels, here three power levels corresponding to the three threshold values Ref 1 , Ref 2 and Ref 3 , to allow control in steps of at least a heating element.
- a single heating element typically the resistor 21, with a negative duty cycle of the order of 25%. In this case, only the switch Ti is closed and the switches T 2 and T 3 are open.
- the Ti and T 2 switches are closed and only the switch T 3 is opened.
- each comparator Q is preferably associated with a hysteresis circuit.
- An exemplary embodiment is illustrated in FIG. 4, in which the hysteresis is obtained by a feedback loop of the comparator output on the positive input of the comparator Q, through a resistor.
- the connector 10 forming the means for receiving the PWM signal is also advantageously able to receive also a signal KL15 corresponding to the vehicle battery voltage, typically of the order of 12 volts, only when the engine of the heating, ventilation and air conditioning system of the vehicle is actually in operation.
- This signal KL15 is thus combined with the signals S, on the gates of the transistors T1.
- Various protections are advantageously used, such as a protection filter 14, and a protection switch 15 that can switch to the open position, for example in the case of overload or under voltage load.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Control Of Resistance Heating (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Air-Conditioning For Vehicles (AREA)
- Control Of Electrical Variables (AREA)
Abstract
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016520328A JP6385430B2 (ja) | 2013-06-17 | 2014-05-15 | 電気加熱回路、特に、自動車用の電気加熱回路の制御 |
| EP14725120.1A EP3011801B1 (fr) | 2013-06-17 | 2014-05-15 | Commande d'un circuit de chauffage electrique, notamment pour vehicule automobile |
| CN201480034704.9A CN105532072B (zh) | 2013-06-17 | 2014-05-15 | 特别用于机动车的电加热电路的控制 |
| US14/896,927 US10477621B2 (en) | 2013-06-17 | 2014-05-15 | Control for electrical heating circuit, in particular for motor vehicle |
| KR1020157035594A KR101785188B1 (ko) | 2013-06-17 | 2014-05-15 | 자동차에 대한 전기 가열 회로의 제어 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1355673 | 2013-06-17 | ||
| FR1355673A FR3007229B1 (fr) | 2013-06-17 | 2013-06-17 | Commande d'un circuit de chauffage electrique, notamment pour vehicule automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014202293A1 true WO2014202293A1 (fr) | 2014-12-24 |
Family
ID=49620032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2014/060031 Ceased WO2014202293A1 (fr) | 2013-06-17 | 2014-05-15 | Commande d'un circuit de chauffage electrique, notamment pour vehicule automobile |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US10477621B2 (fr) |
| EP (1) | EP3011801B1 (fr) |
| JP (1) | JP6385430B2 (fr) |
| KR (1) | KR101785188B1 (fr) |
| CN (1) | CN105532072B (fr) |
| FR (1) | FR3007229B1 (fr) |
| WO (1) | WO2014202293A1 (fr) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106900086A (zh) * | 2017-03-23 | 2017-06-27 | 福州丹诺西诚电子科技有限公司 | 一种加热方法及系统 |
| FR3077703B1 (fr) | 2018-02-08 | 2020-01-17 | Psa Automobiles Sa | Procede de controle de l’alimentation de moyens de chauffage electrique d’un systeme, en fonction de la puissance electrique disponible et des besoins. |
| FR3079479B1 (fr) * | 2018-03-29 | 2020-02-28 | Valeo Systemes Thermiques | Procede de commande d'un module electrique additionnel |
| KR102616813B1 (ko) | 2018-05-24 | 2023-12-26 | 에스케이하이닉스 주식회사 | 반도체 메모리 장치 및 그 동작 방법 |
| FR3088121B1 (fr) * | 2018-11-06 | 2020-11-13 | Valeo Systemes Thermiques | Procede de detection de surchauffe pour dispositif de chauffage et unite de commande correspondante |
| CN110167209A (zh) * | 2019-05-24 | 2019-08-23 | 中山市雅乐思电器实业有限公司 | 一种可级联的加热系统及该系统的功能检测方法 |
| FR3097983A1 (fr) * | 2019-06-28 | 2021-01-01 | Valeo Systemes Thermiques | Dispositif de commande pour un système de chauffage d’un fluide |
| FR3101446B1 (fr) * | 2019-10-01 | 2021-10-01 | Valeo Systemes Thermiques | Procédé de gestion thermique, notamment pour véhicule automobile, et unité de commande associée |
| FR3101447B1 (fr) * | 2019-10-01 | 2022-07-29 | Valeo Systemes Thermiques | Procédé de gestion thermique, notamment pour véhicule automobile, et stratégie de gestion thermique et unité de commande associées |
| CN111563922B (zh) * | 2020-03-26 | 2023-09-26 | 北京迈格威科技有限公司 | 视觉定位方法、装置、电子设备及存储介质 |
| FR3126589B1 (fr) * | 2021-08-26 | 2023-08-11 | Valeo Systemes Thermiques | Procede de limitation de tension de la tension efficace d’au moins un composant electrique et/ou electronique et systeme electronique correspondant |
| KR102932135B1 (ko) * | 2023-11-22 | 2026-03-17 | 주식회사 테라온 | 필름형 복사워머 |
| WO2025080062A1 (fr) * | 2023-10-12 | 2025-04-17 | 주식회사 테라온 | Dispositif de chauffage de rayonnement de type film |
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| US3733463A (en) * | 1970-12-24 | 1973-05-15 | G Low | Temperature control system with a pulse width modulated bridge |
| EP1371519A1 (fr) * | 2002-06-12 | 2003-12-17 | I.G. Bauerhin GmbH | Dispositif de surveillance pour éléments chauffants électriques branchés en série |
| US20040099653A1 (en) * | 2000-12-12 | 2004-05-27 | Hirofumi Hirayama | State controller |
| US20050061798A1 (en) * | 2003-09-22 | 2005-03-24 | Catem Gmbh & Co. Kg | Electric heating apparatus with integrated temperatrure sensor |
| DE102008056757A1 (de) * | 2007-11-16 | 2009-06-18 | Modine Korea Llc, Asan | Elektrisches Zusatzheizsystem für ein Fahrzeug und Verfahren |
| JP2009191842A (ja) * | 2008-01-15 | 2009-08-27 | Denso Corp | ヒータ劣化検出装置およびグロープラグ通電制御装置 |
| DE102010005671B3 (de) * | 2010-01-26 | 2011-06-16 | Borgwarner Beru Systems Gmbh | Verfahren zum Steuern einer Heizeinrichtung und Heizeinrichtung |
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| FR2838599B1 (fr) * | 2002-04-11 | 2004-08-06 | Valeo Climatisation | Dispositif de chauffage electrique, notamment pour appareil de chauffage et ou climatisation de vehicule |
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-
2013
- 2013-06-17 FR FR1355673A patent/FR3007229B1/fr not_active Expired - Fee Related
-
2014
- 2014-05-15 KR KR1020157035594A patent/KR101785188B1/ko active Active
- 2014-05-15 JP JP2016520328A patent/JP6385430B2/ja active Active
- 2014-05-15 CN CN201480034704.9A patent/CN105532072B/zh active Active
- 2014-05-15 EP EP14725120.1A patent/EP3011801B1/fr active Active
- 2014-05-15 US US14/896,927 patent/US10477621B2/en active Active
- 2014-05-15 WO PCT/EP2014/060031 patent/WO2014202293A1/fr not_active Ceased
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3733463A (en) * | 1970-12-24 | 1973-05-15 | G Low | Temperature control system with a pulse width modulated bridge |
| US20040099653A1 (en) * | 2000-12-12 | 2004-05-27 | Hirofumi Hirayama | State controller |
| EP1371519A1 (fr) * | 2002-06-12 | 2003-12-17 | I.G. Bauerhin GmbH | Dispositif de surveillance pour éléments chauffants électriques branchés en série |
| US20050061798A1 (en) * | 2003-09-22 | 2005-03-24 | Catem Gmbh & Co. Kg | Electric heating apparatus with integrated temperatrure sensor |
| DE102008056757A1 (de) * | 2007-11-16 | 2009-06-18 | Modine Korea Llc, Asan | Elektrisches Zusatzheizsystem für ein Fahrzeug und Verfahren |
| JP2009191842A (ja) * | 2008-01-15 | 2009-08-27 | Denso Corp | ヒータ劣化検出装置およびグロープラグ通電制御装置 |
| DE102010005671B3 (de) * | 2010-01-26 | 2011-06-16 | Borgwarner Beru Systems Gmbh | Verfahren zum Steuern einer Heizeinrichtung und Heizeinrichtung |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3007229A1 (fr) | 2014-12-19 |
| US10477621B2 (en) | 2019-11-12 |
| EP3011801A1 (fr) | 2016-04-27 |
| JP2016523433A (ja) | 2016-08-08 |
| JP6385430B2 (ja) | 2018-09-05 |
| KR101785188B1 (ko) | 2017-10-12 |
| US20160143090A1 (en) | 2016-05-19 |
| CN105532072A (zh) | 2016-04-27 |
| EP3011801B1 (fr) | 2019-04-17 |
| CN105532072B (zh) | 2019-07-30 |
| KR20160009055A (ko) | 2016-01-25 |
| FR3007229B1 (fr) | 2015-06-19 |
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