WO2017206214A1 - Dispositif de détection de température embarqué muni d'un capteur de température de type sans aspiration - Google Patents

Dispositif de détection de température embarqué muni d'un capteur de température de type sans aspiration Download PDF

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Publication number
WO2017206214A1
WO2017206214A1 PCT/CN2016/086715 CN2016086715W WO2017206214A1 WO 2017206214 A1 WO2017206214 A1 WO 2017206214A1 CN 2016086715 W CN2016086715 W CN 2016086715W WO 2017206214 A1 WO2017206214 A1 WO 2017206214A1
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WIPO (PCT)
Prior art keywords
temperature sensor
vehicle
inhalation type
type temperature
heat transfer
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PCT/CN2016/086715
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English (en)
Chinese (zh)
Inventor
隋延春
曹以建
徐明仿
李小龙
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惠州市德赛西威汽车电子股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority claimed from CN201610378616.1A external-priority patent/CN106004326B/zh
Priority claimed from CN201610383656.5A external-priority patent/CN105904936B/zh
Application filed by 惠州市德赛西威汽车电子股份有限公司 filed Critical 惠州市德赛西威汽车电子股份有限公司
Publication of WO2017206214A1 publication Critical patent/WO2017206214A1/fr

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    • 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 [HVAC] devices

Definitions

  • the invention relates to the technical field of temperature sensors, and in particular to an in-vehicle temperature sensing device provided with a non-inhalation type temperature sensor.
  • the control interior temperature is related to the in-vehicle temperature sensing device.
  • the conventional in-vehicle temperature sensing device has a fan suction type temperature sensor and a venturi negative pressure suction type temperature sensor, but the above sensor has a noise or wind speed. The lack of excessive deviation can not accurately identify the temperature inside the car, which results in the air conditioning control system control is not accurate enough, affecting the user's comfort in the car.
  • An object of the present invention is to provide an in-vehicle temperature sensing device provided with a non-inhalation type temperature sensor, which uses a combination of a surface temperature sensor and a non-inhalation type temperature sensor to accurately recognize the interior temperature and reduce the temperature by using a heat transfer algorithm.
  • the deviation of the noise or the wind speed makes the control of the air conditioning control system more precise.
  • the invention provides an in-vehicle temperature sensing device provided with a non-inhalation type temperature sensor, comprising a surface temperature sensor disposed in the wall of the air conditioning control panel housing on both sides, and a non-inhalation provided on the main PCB board of the air conditioner.
  • the type temperature sensor, the non-inhalation type temperature sensor and the surface temperature sensor perform heat transfer between the solids.
  • the surface temperature sensor is connected to the heat transfer layer, and the non-inhalation type temperature sensor is An insulating sealant layer is provided on the PCB of the non-inhalation type temperature sensor.
  • the signal output end of the surface temperature sensor and the non-inhalation type temperature sensor is connected to the main control module, and the main control module is configured to perform a heat transfer operation according to an output signal of the temperature sensor to obtain an air temperature in the vehicle.
  • the surface temperature sensor, the heat transfer layer, the non-inhalation type temperature sensor, and the heat insulating sealing layer form an integrated in-vehicle temperature sensing structure, and the integrated in-vehicle temperature sensing structure is connected through a link pin.
  • the device of the main control module, the link pin is a signal output end of the surface temperature sensor and the non-inhalation type temperature sensor.
  • the surface temperature sensor, the heat transfer layer, the non-inhalation type temperature sensor PCB board, and the heat insulating sealant layer form a split structure.
  • the main control module is connected to a filter, and the filter is used to filter an abnormal signal with a large rate of change of the air temperature in the vehicle.
  • the main control module calculates the total heat exchange pair by the output signals of the vehicle outlet air temperature, the wind speed, the vehicle speed, the external temperature, the time, and the non-inhalation type temperature sensor.
  • the function of the non-inhalation type temperature sensor is to calculate the temperature of the air inside the vehicle.
  • the utility model has the advantages that the in-vehicle temperature sensing device provided with the non-inhalation type temperature sensor has the advantages of: performing heat transfer between the solid by the surface temperature sensor and the non-inhalation type temperature sensor, and providing the surface temperature sensor to touch the sunlight and the object.
  • the heat transfer algorithm is used to accurately identify the interior temperature, reduce the deviation in the presence of noise or wind speed, and make the control of the air-conditioning control system more precise, ensuring that the user is inside the vehicle. Comfort.
  • FIG. 1 is a schematic structural view of an integrated in-vehicle temperature sensing device of a non-inhalation type temperature sensor according to the present invention
  • FIG. 2 is a schematic structural view of a split type interior temperature sensing device of a non-inhalation type temperature sensor according to the present invention
  • FIG. 3 is a schematic diagram of the heat transfer principle.
  • the embodiment relates to an integrated in-vehicle temperature sensing device provided with a non-inhalation type temperature sensor, comprising a surface temperature sensor 3 disposed in the walls 1, 2 of the air conditioning control panel housing on both sides.
  • the surface temperature sensor 3 is connected to the heat transfer layer 4, and further includes a non-sucking type temperature sensor 6 connected to the heat insulating sealant layer 5, and the non-sucking type temperature sensor 6 is disposed on the air conditioner main PCB board 7 (not shown)
  • the insulating sealant layer 5 is provided on a non-inhalation type temperature sensor 6 PCB, and the non-inhalation type temperature sensor 6 and the surface temperature sensor 3 perform heat transfer between the solids.
  • the surface temperature sensor 3 and the heat transfer layer 4 are disposed 1 mm or more above the wall of the air conditioning control panel housing to well recognize the temperature of the interior air, that is, the temperature around the surface temperature sensor 3.
  • a non-inhalation type temperature sensor 6 is added to the air conditioner main PCB board 7; and the heat sealant layer 5 is sealed between the surface temperature sensor 3 and the non-intake type temperature sensor 6. Ensure that the two sensors perform heat transfer between the solids.
  • the signal output ends of the surface temperature sensor 3 and the non-inhalation type temperature sensor 6 are connected to a main control module, and the main control module is configured to perform heat transfer calculation according to an output signal of the temperature sensor to obtain a vehicle. Internal air temperature.
  • the surface temperature sensor 3, the heat transfer layer 4, the non-inhalation type temperature sensor 5, and the heat insulating sealing layer 6 form an integrated in-vehicle temperature sensing structure, and the integrated in-vehicle temperature sensing structure passes
  • the link pin 8 is connected to a device provided with a main control module, and the link pin 8 is a signal output end of the surface temperature sensor 3 and the non-inhalation type temperature sensor 6.
  • the process of performing heat transfer calculation by the main control module according to the output signal of the temperature sensor is as shown in FIG. 2, combining the surface temperature sensor and the non-inhalation type temperature sensor according to the Fourier heat transfer formula and Newton's cooling theorem to find the air temperature inside the car.
  • the Fourier heat transfer formula and the Newtonian cooling theorem formula are:
  • ⁇ is the amount of heat conduction, and the unit is W;
  • ⁇ is the thermal conductivity coefficient, which is a physical property parameter that characterizes the thermal conductivity of the material (the larger the ⁇ , the better the thermal conductivity);
  • A is the heat transfer area in m ⁇ 2
  • x is the coordinate on the heat transfer surface, the unit is m
  • q is the heat flux density transmitted in the x direction (strictly speaking, the heat flux density is a vector, so q should be the component of the heat flux density vector in the x direction).
  • the unit is W/m ⁇ 2.
  • Dt/dx is the temperature change rate of the object along the x direction
  • the heat Qpcb transmitted from the non-inhalation type temperature sensor 6 to the surface temperature sensor 3 is:
  • K is the heat transfer coefficient of the non-inhalation PCB board, K is related to the material and structure;
  • the heat Qair delivered to the air by the surface temperature sensor 3 is:
  • h is the convective heat transfer coefficient between the surface temperature sensor 3 and the air inside the vehicle, h is related to the air flow rate; A is the heat exchange area of the surface temperature sensor 3 and the interior air.
  • Tpcb temperature of non-inhalation type temperature sensor 6
  • Tsf temperature of surface temperature sensor 3
  • Tair ((K+hA)Tsf- ⁇ dTsf/t-K Tpcb)/hA
  • the fault-tolerant device that touches the sun and the object :
  • the surface of the surface temperature sensor 3 is easily disturbed by the outside world, for example, sunlight, finger touch, etc., and if the abnormality is not handled, the temperature may rise or fall rapidly, causing the temperature inside the vehicle to drastically change. Filtering is required when sunlight and objects touch. When the sun is irradiated at t1, the temperature T1 rises rapidly, and the interference is generated by the judgment of the rate of change. At this time, the main control module is connected to the filter to filter the abnormal signal with a large change rate of the air temperature inside the vehicle, thereby filtering the sunlight. The anomaly of the illumination is dealt with, and the touch of the hand or the touching of the hot and cold objects is the same. Both are used to obtain the rate of change, and the filter is applied to achieve temperature stability.
  • the fault tolerant device with respect to the surface temperature sensor is damaged:
  • the main control module calculates the total heat exchange to the non-inhalation type through the output signals of the air temperature, wind speed, vehicle speed, external temperature, time and non-inhalation type temperature sensor in the vehicle.
  • the role of the temperature sensor to calculate the temperature of the air inside the vehicle. The following formula:
  • the temperature inside the cabin the relationship between the air temperature, the wind speed, and the external temperature + the relationship between the vehicle speed and the external temperature + the time integral relationship.
  • the integrated in-vehicle temperature sensing device of the present invention is composed of a plurality of components, there is a phenomenon of solid heat transfer, and the surface temperature sensor 3 installed at the forefront cannot correctly recognize the air temperature around the sensor (ie, the vehicle) Internal air temperature), so add a non-inhalation type temperature sensor 6 at the rear, and then isolate the influence of air on the non-inhalation type temperature sensor 6 by the heat insulating glue, so that the surface temperature sensor 3 and the non-inhalation type temperature sensor 6 only have solids.
  • the heat transfer relationship uses the dual temperature sensor combination structure and heat transfer principle to accurately identify the air temperature around the surface temperature sensor, ie the air temperature inside the vehicle.
  • the embodiment relates to a split type interior temperature with a non-inhalation type temperature sensor.
  • the sensing device comprises a surface temperature sensor 3 disposed on the air conditioning control panel housing walls 1 and 2 on both sides, the surface temperature sensor 3 is connected to the heat transfer layer 4, and further comprises an insulating sealing layer 5 A non-inhalation type temperature sensor 6 is connected, and a non-inhalation type temperature sensor 6 is disposed on the air conditioner main PCB board 7.
  • the heat insulating sealing layer 5 is provided on the non-inhalation type temperature sensor 6 PCB, and the non-inhalation type temperature sensor 6 performs heat transfer between the solids and the surface temperature sensor 3.
  • the surface temperature sensor 3 and the heat transfer layer 4 are disposed 1 mm or more above the wall of the air conditioning control panel housing to well recognize the temperature of the interior air, that is, the temperature around the surface temperature sensor 3.
  • a non-inhalation type temperature sensor 6 is added to the air conditioner main PCB board 7; and the heat sealant layer 5 is sealed between the surface temperature sensor 3 and the non-intake type temperature sensor 6. Ensure that the two sensors perform heat transfer between the solids.
  • the signal output ends of the surface temperature sensor 3 and the non-inhalation type temperature sensor 6 are connected to a main control module, and the main control module is configured to perform heat transfer calculation according to an output signal of the temperature sensor to obtain a vehicle. Internal air temperature.
  • the surface temperature sensor 3, the heat transfer layer 4, the non-inhalation type temperature sensor 6 PCB board, and the heat insulating sealant layer 5 form a split structure, which can be directly pulled out.
  • the process of performing heat transfer calculation by the main control module according to the output signal of the temperature sensor is as shown in FIG. 2, combining the surface temperature sensor and the non-inhalation type temperature sensor according to the Fourier heat transfer formula and Newton's cooling theorem to find the air temperature inside the car.
  • the Fourier heat transfer formula and the Newtonian cooling theorem formula are:
  • ⁇ is the amount of heat conduction, and the unit is W;
  • ⁇ is the thermal conductivity coefficient, which is a physical property parameter that characterizes the thermal conductivity of the material (the larger the ⁇ , the better the thermal conductivity);
  • A is the heat transfer area in m ⁇ 2
  • x is the coordinate on the heat transfer surface, the unit is m
  • q is the heat flux density transmitted in the x direction (strictly speaking, the heat flux density is a vector, so q should be the component of the heat flux density vector in the x direction).
  • the unit is W/m ⁇ 2.
  • Dt/dx is the temperature change rate of the object along the x direction
  • the heat Qpcb transmitted from the non-inhalation type temperature sensor 6 to the surface temperature sensor 3 is:
  • K is the heat transfer coefficient of the non-inhalation PCB board, K is related to the material and structure;
  • the heat Qair delivered to the air by the surface temperature sensor 3 is:
  • h is the convective heat transfer coefficient between the surface temperature sensor 3 and the air inside the vehicle, h is related to the air flow rate; A is the heat exchange area of the surface temperature sensor 3 and the interior air.
  • Tpcb temperature of non-inhalation type temperature sensor 6
  • Tsf temperature of surface temperature sensor 3
  • the temperature of the air temperature Tair can be solved from the above formula 1-3, and the calculated formula of the derived air temperature Tair is:
  • Tair ((K+hA)Tsf- ⁇ dTsf/t-K Tpcb)/hA
  • the fault-tolerant device that touches the sun and the object :
  • the surface of the surface temperature sensor 3 is easily disturbed by the outside world, for example, sunlight, finger touch, etc., and if the abnormality is not handled, the temperature may rise or fall rapidly, causing the temperature inside the vehicle to drastically change. Filtering is required when sunlight and objects touch. When the sun is irradiated at t1, the temperature T1 rises rapidly, and the interference is generated by the judgment of the rate of change. At this time, the main control module is connected to the filter to filter the abnormal signal with a large change rate of the air temperature inside the vehicle, thereby filtering the sunlight. Illumination difference The normal phenomenon is dealt with. The same is true for hand touch or hot and cold object touch. It is used to obtain the rate of change and filter it to achieve temperature stability.
  • the fault tolerant device with respect to the surface temperature sensor is damaged:
  • the main control module calculates the total heat exchange to the non-inhalation type through the output signals of the air temperature, wind speed, vehicle speed, external temperature, time and non-inhalation type temperature sensor in the vehicle.
  • the role of the temperature sensor to calculate the temperature of the air inside the vehicle. The following formula:
  • the temperature inside the cabin the relationship between the air temperature, the wind speed, and the external temperature + the relationship between the vehicle speed and the external temperature + the time integral relationship.
  • the split type in-vehicle temperature sensing device of the present invention is composed of a plurality of elements, there is a phenomenon of solid heat transfer, and the surface temperature sensor 3 installed at the forefront cannot correctly recognize the air temperature around the sensor (ie, In-vehicle air temperature), so a non-inhalation type temperature sensor 6 is added at the rear, and then the influence of the air on the non-inhalation type temperature sensor 6 is separated by the heat insulating glue, so that the surface temperature sensor 3 and the non-inhalation type temperature sensor 6 exist only.
  • the solid heat transfer relationship uses the dual temperature sensor combination structure and heat transfer principle to accurately identify the air temperature around the surface temperature sensor, ie the air temperature inside the vehicle.

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

La présente invention concerne un dispositif de détection de température embarqué pourvu d'un capteur de température de type sans aspiration (6), le dispositif comprenant un capteur de température de surface (3) disposé dans des parois d'enveloppe de panneau de commande de climatiseur (1, 2) sur deux côtés, et comprenant en outre le capteur de température de type non-aspiration (6) disposé sur une carte de circuit imprimé principale de climatiseur (7). Le transfert de chaleur entre les substances solides est conduit entre le capteur de température de type sans aspiration (6) et le capteur de température de surface (3). Le capteur de température de surface (3) est raccordé à une couche de transfert de chaleur (4), et le capteur de température de type sans aspiration (6) est raccordé à une couche d'étanchéité d'isolation thermique (5) disposée sur la carte de circuit imprimé (7) du capteur de température de type sans aspiration (6). Étant donné que le transfert de chaleur entre les substances solides est conduit entre le capteur de température de surface (3) et le capteur de température de type sans aspiration (6), un dispositif de tolérance aux défaillances est prévu en allusion à la lumière du soleil et aux situations de contact et d'endommagement de l'objet du capteur de température de surface, un algorithme de transfert de chaleur est utilisé pour reconnaître de manière très précise la température dans un véhicule, et l'écart généré lorsque le bruit existe ou que la vitesse du vent est réduite est réduit, de telle sorte qu'un système de commande de climatiseur effectue une commande de manière plus précise, et le niveau de confort d'un utilisateur dans le véhicule est assuré.
PCT/CN2016/086715 2016-05-31 2016-06-22 Dispositif de détection de température embarqué muni d'un capteur de température de type sans aspiration WO2017206214A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201610378616.1A CN106004326B (zh) 2016-05-31 2016-05-31 设有非吸入型温度传感器的集成式车内温度传感装置
CN201610383656.5A CN105904936B (zh) 2016-05-31 2016-05-31 设有非吸入型温度传感器的拆分式车内温度传感装置
CN2016103836565 2016-05-31
CN2016103786161 2016-05-31

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001347817A (ja) * 2000-06-05 2001-12-18 Mitsubishi Heavy Ind Ltd 車内温度検出装置
US20040223534A1 (en) * 2003-03-12 2004-11-11 Behr-Hella Thermocontrol Gmbh Device for detection of the temperature in the interior of a vehicle
US20110128991A1 (en) * 2007-09-12 2011-06-02 Preh Gmbh Sensor arrangement for determining an inside temperature in a motor vehicle
CN103486701A (zh) * 2013-09-03 2014-01-01 惠州市德赛西威汽车电子有限公司 一种车载空调温度控制方法
CN204020478U (zh) * 2014-07-15 2014-12-17 北汽福田汽车股份有限公司 汽车及室外温度检测装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001347817A (ja) * 2000-06-05 2001-12-18 Mitsubishi Heavy Ind Ltd 車内温度検出装置
US20040223534A1 (en) * 2003-03-12 2004-11-11 Behr-Hella Thermocontrol Gmbh Device for detection of the temperature in the interior of a vehicle
US20110128991A1 (en) * 2007-09-12 2011-06-02 Preh Gmbh Sensor arrangement for determining an inside temperature in a motor vehicle
CN103486701A (zh) * 2013-09-03 2014-01-01 惠州市德赛西威汽车电子有限公司 一种车载空调温度控制方法
CN204020478U (zh) * 2014-07-15 2014-12-17 北汽福田汽车股份有限公司 汽车及室外温度检测装置

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