CN203528246U - External environment temperature correcting device - Google Patents
External environment temperature correcting device Download PDFInfo
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- CN203528246U CN203528246U CN201320594940.9U CN201320594940U CN203528246U CN 203528246 U CN203528246 U CN 203528246U CN 201320594940 U CN201320594940 U CN 201320594940U CN 203528246 U CN203528246 U CN 203528246U
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Abstract
The utility model relates to the field of automobile air conditioners, in particular to an external environment temperature correcting device. The device is composed of an external environment temperature sensor module used for detecting the external environment temperature, an engine water temperature sampling module used for obtaining the water temperature value of an engine, a vehicle speed sampling module used for obtaining the vehicle speed value, an external temperature correction module which is connected with the external environment temperature sensor module, the engine water temperature sampling module and the vehicle speed sampling module and used for correcting the rising rate of the external environment temperature according to the obtained vehicle speed value and the obtained water temperature value of the engine and sending the corrected external environment temperature to an air conditioner control module. The external temperature correction module is further connected with a CAN communication module and a power failure memory module. After the external environment temperature correcting device is used for correcting the external temperature, accurate external temperature input can be provided for a full-automatic automobile air conditioner controller, and the problem that the displayed external temperature number is virtually high is avoided.
Description
Technical field
The utility model relates to air conditioning for automobiles field, relates in particular to a kind of car external environment temperature correcting device of automotive air-conditioning controller.
Background technology
Development due to Eltec, modern automobile air-conditioning is by computer controlled, the a/c system that perfect automobile computer is controlled not only can automatically adjust to the temperature of air in car, humidity, cleanliness level, air quantity and wind direction etc., to passenger, provide a kind of good environment by bus, guarantee to make passenger all in a comfortable air ambient under various extraneous weathers and condition, and can also carry out fault detection.
Full automatic car air-conditioning is more and more universal at home, gathering accurately the outer temperature of car is to realize the necessary component of air conditioning for automobiles Automatic Control, the outer temperature sensor of car is installed on air inlet grid inner side conventionally, while running at high speed, reading is close to ambient temperature, low speed driving or short time are when stop, the outer temperature sensor of car is because be subject to the impact of engine radiation, and reading is higher than actual environment temperature.
Summary of the invention
The purpose of this utility model is to provide a kind of car external environment temperature is revised, and avoids the car external environment temperature sensor correcting device of outer temperature reading virtual height.
In order to solve the problem of prior art, the utility model provides a kind of car external environment temperature correcting device: comprising:
Car external environment temperature sensor module, for detection of car external environment temperature;
Engine Coolant Temperature sampling module, for obtaining the water temperature value of driving engine;
Speed of a motor vehicle sampling module, for obtaining vehicle speed value;
Outer temperature correcting module, connect described car external environment temperature sensor module, Engine Coolant Temperature sampling module and speed of a motor vehicle sampling module, for according to the climbing speed of the water temperature value correction car external environment temperature of the vehicle speed value obtaining and driving engine, send revised car external environment temperature to air-conditioning control module;
Described outer temperature correcting module also connects CAN communication module and power-failure memory module.
Described CAN communication module connects automobile-used electronic control module, and described automobile-used electronic control module sends the outer temperature deviation compensating signal of car to described outer temperature correcting module by CAN communication module.
Described power-failure memory module, for remembering previous car external environment temperature value.
Preferably, described air-conditioning control module comprises air-out mode control module, compressor control module, air compressor control module, automatic defrosting control module, inner-outer circulation control module, temperature control modules, cold air door control module, vehicle interior temperature correcting module, human-computer interaction module.
Preferably, the outer temperature reading that described car external environment temperature sensor module is obtained is the outer warm correcting module of access after the conversion of AD modular converter.
Preferably, described device also comprises sunlight strength acquisition module, and the sunlight strength value gathering is exported to temperature control modules after inputing to the correction of outer temperature correcting module.
The outer temperature sensor of car is a kind of NTC thermally dependent resistor, is installed on after front bumper.NTC thermally dependent resistor is under certain measurement power, resistance value is along with temperature rises and declines rapidly, utilize this characteristic, can be by the loop of the power supply of the resistance series connection access fixed voltage of NTC thermally dependent resistor and fixed resistance value, because the variation of the NTC thermally dependent resistor resistance voltage at NTC thermally dependent resistor two ends also can change thereupon, by the voltage at the outer temperature sensor of inspection vehicle two ends, according to the outer temperature sensor R-T property list of car, can determine corresponding temperature, thereby reach the object that detects and control temperature.
The outer temperature signal initial value of car also can pass to automotive air-conditioning controller by CAN bus from other electronic control module on car, and this initial value is by obtaining static deviation compensation as the initial value of outer temperature sensor.
By car external environment temperature correcting device of the present utility model, the initial value of outer temperature sensor is through outer temperature correcting module, according to incoming signals such as the speed of a motor vehicle, Engine Coolant Temperature, sunlight strengths, press after the outer warm correcting module correction of the utility model, as input value, pass to CAN communication module, power-failure memory EEPROM module, air compressor control module, compressor control module, air-out mode control module, automatic defrosting control module, inner-outer circulation control module, vehicle interior temperature correcting module, human-computer interaction module, changes in temperature blender door control module.Realize accurate outer temperature and show, stablize accurately environment inside car temperature and control, the air-out wind speed of hommization, air-out mode, comprehensively in-car air quality is controlled, for occupant provides healthy comfortable environment inside car.
Therefore, application the technical solution of the utility model, there is following beneficial effect: the utility model provides a kind of car external environment temperature correcting device, the comprehensive application speed of a motor vehicle, outer temperature sensor numerical value, Engine Coolant Temperature etc. are revised the outer temperature of car, avoid outer temperature reading virtual height, for Full-automatic automobile air conditioner controller provides accurately outer temperature input.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, forms the application's a part, does not form to improper restriction of the present utility model, in the accompanying drawings:
Fig. 1 is the structured flowchart of the utility model car external environment temperature correcting device.
Fig. 2 is the outer warm static deviation OutTStaticOffset table of the utility model.
Fig. 3 is the initial value table that the utility model sensor is heated coefficient of regime Heatst.
Fig. 4 is that the utility model sensor is heated speed coefficient HeatRate table.
Fig. 5 is the utility model climbing speed limits value Hrl table.
Fig. 6 is the utility model climbing speed limits value Hsl table.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment, describe the utility model in detail, in this illustrative examples of the present utility model and explanation, be used for explaining the utility model, but not as to restriction of the present utility model.
Car external environment temperature correcting device as shown in Figure 1: car external environment temperature sensor module, for detection of car external environment temperature; Speed of a motor vehicle sampling module, for obtaining vehicle speed value; Engine Coolant Temperature sampling module, for obtaining the water temperature value of driving engine; Sunlight strength sampling module, for obtaining sunlight strength value; The value that these are obtained inputs to outer temperature correcting module, after the correction of outer temperature correcting module, exports to air-conditioning control module, power-failure memory module, CAN communication module.The outer temperature reading that car external environment temperature sensor module is obtained is the outer warm correcting module of access after the conversion of AD modular converter.
Wherein air-conditioning control module comprises: air-out mode control module, compressor control module, air compressor control module, automatic defrosting control module, inner-outer circulation control module, temperature control modules, cold air door control module, vehicle interior temperature correcting module, human-computer interaction module.
The outer temperature signal initial value of car also can be from other electronic control module on car, by CAN bus, pass to automotive air-conditioning controller, this initial value, by obtaining static deviation compensation as the initial value of outer temperature sensor, can obtain static deviation compensation through table look-up (Fig. 2).
Car external environment temperature correcting device of the present utility model, by implementing the update method of car external environment temperature sensor reading, adopts the outer warm reading of following steps correction:
A. car external environment temperature sensor module reads car external environment temperature original value OutRawT;
Engine Coolant Temperature sampling module reads the water temperature value WaterT of driving engine;
Speed of a motor vehicle sampling module reads vehicle speed value Speed;
B. judge whether initialization of car external environment temperature reading OutT, be specially:
If car external environment temperature reading OutT is judged as initialization, when the deviation OatRawWaterDiff of outer temperature original value and water temperature is greater than threshold values OatRawWaterDiffLimt, using the car external environment temperature value of power-failure memory module EepOutT memory is car external environment temperature reading OutT initialize;
Otherwise using car external environment temperature original value OutRawT is car external environment temperature reading OutT initialize;
If C. car external environment temperature reading OutT is judged as no initializtion, according to the deviation OatRawWaterDiff of car external environment temperature original value OutRawT and water temperature, tables look-up and obtain the initial value that sensor is heated coefficient of regime Heatst, as shown in Figure 3.
D. according to the deviation OatRawWaterDiff of car external environment temperature original value OutRawT and water temperature and vehicle speed value Speed, table look-up and obtain sensor and be heated speed coefficient HeatRate, as shown in Figure 4; Sensor is heated to coefficient of regime HeatRate and is updated to Heatst=Heatst+HeatRate.
E. according to sensor, be heated speed coefficient HeatRate and table look-up and obtain the first climbing speed limits value Hrl, as shown in Figure 5.
According to sensor, be heated coefficient of regime Heatst and table look-up and obtain the second climbing speed limits value Hsl, as shown in Figure 6.
More described the first climbing speed limits value Hrl and the second climbing speed limits value Hsl, the climbing speed Rl using smaller value as the car external environment temperature reading allowing;
F. compare car external environment temperature original value OutRawT and car external environment temperature reading OutT, work as OutRawT<OutT, upgrade OutT=OutRawT; If OutRawT>OutT, fixed cycle upgrades OutT=OutT+Rl;
In addition, the step in steps A: car external environment temperature sensor module also comprises after reading car external environment temperature original value OutRawT:
Table look-up and obtain outer temperature static deviation OutTStaticOffset, as shown in Figure 2; According to outer temperature static deviation OutTStaticOffset, revise described car external environment temperature original value OutRawT, revised car external environment temperature original value OutRawT=OutRawT+OutTStaticOffse;
Car external environment temperature original value OutRawT in step B to F is described revised car external environment temperature original value OutRawT.
When this method has just powered on, according to the deviation OatRawWaterDiff of outer temperature original value OutRawT and water temperature, table look-up and obtain the initial value that sensor is heated coefficient of regime Heatst, afterwards according to the deviation OatRawWaterDiff of outer temperature original value and water temperature and speed of a motor vehicle Speed, table look-up and obtain sensor and be heated speed coefficient HeatRate, upgrade Heatst=Heatst+HeatRate; By the sensor of initial and real-time update, be heated climbing speed that coefficient of regime Heatst and real-time sensor be heated the outer temperature of speed coefficient HeatRate restriction and more can embody the external temperature sensor impact of engine bin thermal radiation.
The different most of Engine Coolant Temperature of using of this method are judged hot car or cold start, and Ruo Reche starts the outer temperature used in power-failure memory as outer temperature, and take and start the outer temperature modification method that starts to forbid as a period of time of starting point outer temperature renewal.During flexibly according to the outer warm deviation of engine water gentleness, the external temperature sensor of engine bin thermal radiation affects, after binding engine starts outside different engine water gentlenesses the different speed of a motor vehicle under warm deviation, the different real-time update sensors of the external temperature sensor coefficient of heat transmission of extraneous air are heated speed coefficient HeatRate, by real-time update sensor, be heated coefficient of regime Heatst and limit, make the more realistic ambient temperature of outer temperature reading.
The identical speed of a motor vehicle Speed of deviation OatRawWaterDiff of this method warm original value and water temperature outside difference, table look-up and obtain sensor and be heated speed coefficient HeatRate difference to limit thus outer temperature climbing speed also different, more can the external temperature sensor impact of realistic engine bin thermal radiation.Such as 25 degree of basement garage temperature when the summer, temperature 30 degree outside garage, Engine Coolant Temperature 40, the general firm road that rolls garage and garage periphery away from, the speed of a motor vehicle is lower, now the deviation OatRawWaterDiff of outer warm original value and water temperature is lower, and sensor is heated the outer temperature of the lower also permission of speed coefficient HeatRate can better react actual car external environment temperature with speed rising faster.
By the sensor of real-time update, be heated coefficient of regime Heatst and according to the deviation OatRawWaterDiff of outer temperature original value and water temperature and speed of a motor vehicle Speed, table look-up and obtain the climbing speed that sensor is heated the outer temperature of the common restriction of speed coefficient HeatRate, more can embody real engine storehouse thermal radiation external temperature sensor impact.Such as when vehicle, with lower speed (lower than 30Km/h), travel a period of time or while waiting for a period of time traffic lights after the short period accelerate to fast speed (70Km/h), now outer temperature sensor is because engine bin thermal radiation impact is higher than actual environment temperature, although the speed of a motor vehicle has risen, outer temperature sensor does not also cool to actual environment temperature through extraneous air completely.As now just caused outer temperature reading virtual height according to speed limit climbing speed.And because low speed driving process or not power-off are in short-term stopped for a long time, upgrading cumulative Heatst=Heatst+HeatRate will be a larger numerical value, thereby need travel and just can make the numerical value reduction of Heatst make the climbing speed of restriction become large through fair speed after a while, avoid outer temperature reading virtual height.
The utility model provides a kind of car external environment temperature correcting device, by implement car external environment temperature reading modification method, the comprehensive application speed of a motor vehicle, outer temperature sensor numerical value, Engine Coolant Temperature etc. are revised the outer temperature of car, and introducing sensor is heated speed coefficient and sensor is heated the outer warm reading rising of the comprehensive restriction of coefficient of regime, avoids outer temperature reading virtual height, for Full-automatic automobile air conditioner controller provides accurate outer temperature input.
The technical scheme above the utility model embodiment being provided is described in detail, applied specific case herein the principle of the utility model embodiment and embodiment are set forth, the explanation of above embodiment is only applicable to help to understand the principle of the utility model embodiment; , for one of ordinary skill in the art, according to the utility model embodiment, on the specific embodiment and field of application, all will change, in sum, this description should not be construed as restriction of the present utility model meanwhile.
Claims (6)
1. a car external environment temperature correcting device, comprising:
Car external environment temperature sensor module, for detection of car external environment temperature;
Engine Coolant Temperature sampling module, for obtaining the water temperature value of driving engine;
Speed of a motor vehicle sampling module, for obtaining vehicle speed value;
Outer temperature correcting module, connect described car external environment temperature sensor module, Engine Coolant Temperature sampling module and speed of a motor vehicle sampling module, for according to the climbing speed of the water temperature value correction car external environment temperature of the vehicle speed value obtaining and driving engine, send revised car external environment temperature to air-conditioning control module;
Described outer temperature correcting module also connects CAN communication module and power-failure memory module.
2. a kind of car external environment temperature correcting device according to claim 1, is characterized in that: described air-conditioning control module comprises air-out mode control module, compressor control module, air compressor control module, automatic defrosting control module, inner-outer circulation control module, temperature control modules, cold air door control module, vehicle interior temperature correcting module, human-computer interaction module.
3. a kind of car external environment temperature correcting device according to claim 1, is characterized in that: the outer temperature reading that described car external environment temperature sensor module is obtained is the outer warm correcting module of input after the conversion of AD modular converter.
4. a kind of car external environment temperature correcting device according to claim 1, it is characterized in that: also comprise sunlight strength acquisition module, for the sunlight strength value of collection is inputed to outer temperature correcting module, described outer temperature correcting module will be exported to temperature control modules after the correction of described sunlight strength value.
5. a kind of car external environment temperature correcting device according to claim 1, is characterized in that:
Described CAN communication module connects automobile-used electronic control module, and described automobile-used electronic control module sends the outer temperature deviation compensating signal of car to described outer temperature correcting module by CAN communication module.
6. a kind of car external environment temperature correcting device according to claim 1, is characterized in that:
Described power-failure memory module, for remembering previous car external environment temperature value.
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| CN201320594940.9U CN203528246U (en) | 2013-09-25 | 2013-09-25 | External environment temperature correcting device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103465751A (en) * | 2013-09-25 | 2013-12-25 | 惠州市华阳多媒体电子有限公司 | Device and method for correcting environment temperature outside vehicle |
| CN106032926A (en) * | 2015-03-10 | 2016-10-19 | 惠州市德赛西威汽车电子股份有限公司 | A temperature control method and control device for an automobile air conditioner |
| CN107444065A (en) * | 2017-07-26 | 2017-12-08 | 安徽江淮汽车集团股份有限公司 | Electric automobile air conditioner control system and method |
| CN108515825A (en) * | 2018-03-22 | 2018-09-11 | 安徽江淮汽车集团股份有限公司 | A kind of automotive air-conditioning system and its control method of Two-stage Compression |
| CN112918210A (en) * | 2021-01-28 | 2021-06-08 | 浙江合众新能源汽车有限公司 | Air conditioner sensor data processing method |
-
2013
- 2013-09-25 CN CN201320594940.9U patent/CN203528246U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103465751A (en) * | 2013-09-25 | 2013-12-25 | 惠州市华阳多媒体电子有限公司 | Device and method for correcting environment temperature outside vehicle |
| CN103465751B (en) * | 2013-09-25 | 2016-03-23 | 惠州华阳通用电子有限公司 | A kind of car external environment temperature correction |
| CN106032926A (en) * | 2015-03-10 | 2016-10-19 | 惠州市德赛西威汽车电子股份有限公司 | A temperature control method and control device for an automobile air conditioner |
| CN106032926B (en) * | 2015-03-10 | 2019-06-07 | 惠州市德赛西威汽车电子股份有限公司 | The temprature control method and control device of air conditioning for automobiles |
| CN107444065A (en) * | 2017-07-26 | 2017-12-08 | 安徽江淮汽车集团股份有限公司 | Electric automobile air conditioner control system and method |
| CN108515825A (en) * | 2018-03-22 | 2018-09-11 | 安徽江淮汽车集团股份有限公司 | A kind of automotive air-conditioning system and its control method of Two-stage Compression |
| CN112918210A (en) * | 2021-01-28 | 2021-06-08 | 浙江合众新能源汽车有限公司 | Air conditioner sensor data processing method |
| CN112918210B (en) * | 2021-01-28 | 2022-06-03 | 浙江合众新能源汽车有限公司 | Air conditioner sensor data processing method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: FORYOU GENERAL ELECTRONICS CO., LTD. Free format text: FORMER OWNER: FORYOU MULTIMEDIA ELECTRONICS CO., LTD. Effective date: 20140627 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20140627 Address after: 516005 Guangdong city of Huizhou Province Dongjiang high-tech industrial park on the Xia Road No. 1 Huayang Industrial Park A District No. 2 Patentee after: Foryou General Electronics Co., Ltd. Address before: 516005, Guangdong, Huizhou hi tech Industrial Park, Dongjiang 1 North Road, No. 4, Huayang Industrial Park, building B Patentee before: Foryou Multimedia Electronics Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20160925 |