CN103171501A - Correcting method and correcting device of environment temperature for vehicle - Google Patents
Correcting method and correcting device of environment temperature for vehicle Download PDFInfo
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- CN103171501A CN103171501A CN2011104407615A CN201110440761A CN103171501A CN 103171501 A CN103171501 A CN 103171501A CN 2011104407615 A CN2011104407615 A CN 2011104407615A CN 201110440761 A CN201110440761 A CN 201110440761A CN 103171501 A CN103171501 A CN 103171501A
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Abstract
The invention provides a correcting method and correcting device of the environment temperature for a vehicle. The correcting method and the correcting device of the environment temperature for the vehicle are used for correcting a vehicle external-environment temperature value displayed on a displayer when the vehicle is started and runs. A processor arranged in a controller corrects the obtained temperature read value of an environment temperature sensor according to a sensor current read value obtained through the environment temperature sensor and whether the vehicle is under the starting state or under the running state so that the environment temperature read value displayed on the displayer can truly reflect the environment temperature outside the vehicle.
Description
Technical field
The present invention relates to A/C, the invention particularly relates to the temperature control apparatus of auto air-con.
Background technology
China's economic powerful makes auto-industry in Chinese fast development.A/C is as the indispensable device of vehicle, and good and bad the getting more and more of its automatic control to temperature receives user's concerns.
And realize the automatic control of air conditioning system for vehicle, and need to be to the accurate detection of car internal and external temperature, vehicle will be equipped with car external environment temperature sensor and comes the outer ambient temperature of probe vehicles usually.
The air-inlet grille that automobile-used environment temperature sensor is arranged on vehicle front usually is inboard, and this is because sensor residing position airiness is better during Vehicle Driving Cycle, thereby guarantees the car external environment temperature of the more approaching reality of reading of sensor.
When but the speed of a motor vehicle was low, environment temperature sensor easily was subject to the impact of engine radiation.At this moment, the situation that ambient temperature that sensor detects departs from actual car external environment temperature can appear usually, thus the situation that shown car external environment temperature can higher than the car external environment temperature of reality (even exceeding 50 degrees centigrade).
Therefore, reflect as much as possible real car external environment temperature in order to make the car external environment temperature that sensor detects, need to revise the car external environment temperature reading that detects.
Summary of the invention
The purpose of this invention is to provide and a kind of car external environment temperature is revised modification method and device as far as possible truly to reflect the temperature sensor for vehicle reading.
According to one aspect of the present invention, the modification method of temperature sensor for vehicle reading when the invention provides a kind of vehicle launch comprises: the water temperature value of being obtained vehicle motor by cooling-water temperature sensor; By the Engine Coolant Temperature value that treater obtains according to sensor, be in cold car state or hot car state during the judgement vehicle launch.
According to another aspect of the present invention, the invention provides a kind of modification method of car external environment temperature sensor reading, comprise: the current reading that is at first read car external environment temperature by sensor; Obtained the speed of a motor vehicle of Vehicle Driving Cycle by treater; And the ambient temperature value of remembering in the current reading of car external environment temperature that will be read by described sensor and described treater compares, and shows comparative result on telltale.
According to another aspect of the present invention, the invention provides a kind of automobile-used ambient temperature and upgrade control apparatus, it comprises: temperature rising duration setting module, the duration of regulating is upgraded in ambient temperature rising shown when being used for the default different speed of a motor vehicle; Speed of a motor vehicle acquisition module is used for obtaining vehicle speed value; Cooling-water temperature sensor is for the water temperature value of obtaining driving engine; Environment temperature sensor is used for probe vehicles external environment temperature; Cold and hot car setting module is used for default vehicle and is in cold car or the temperature value of hot car; Comparator 1; Comparator 2; EEPROM; Treater; And telltale, wherein, the preset vehicle speed that the instant speed of a motor vehicle that comparator 2 obtains speed of a motor vehicle acquisition module and temperature rising duration setting module set compares, wherein, the default temperature value of the water temperature that comparator 1 obtains sensor and cold and hot car setting module relatively, and be in cold car or hot car by treater according to comparative result judgement vehicle, and wherein, shown ambient temperature on telltale that EEPROM is used for storing ignition key when withdrawing from the ON shelves; Treater is processed the comparative result of comparator 1 and comparator 2, and the ambient temperature value that sensor obtains is revised, and is presented on telltale.
Description of drawings
Fig. 1 is that the ambient temperature of carrying out according to vehicle motor water temperature and the speed of a motor vehicle after vehicle launch of the present invention shows and revises diagram of circuit;
Fig. 2 is to the modification method of shown ambient temperature rising duration when considering the affecting of the speed of a motor vehicle in the Vehicle Driving Cycle process; And
Fig. 3 is the schematic diagram that the present invention is used for control apparatus that shown ambient temperature is regulated.
The specific embodiment
With reference to the accompanying drawings, the specific embodiment of the present invention is described.
In the present invention, car external environment temperature sensor reading modification method adopts lower array function:
T
amb
= f(v, T
eng
) (1)
Wherein, T
amb
It is the ambient temperature that shows;
V is the speed of a motor vehicle, and
T
eng
It is the water temperature of driving engine.
That is to say, the temperature reading of sensor is the function of the speed of a motor vehicle and Engine Coolant Temperature.
At first, adopt thermistor type sensors probe vehicles external environment temperature.Because the resistance value of thermistor type sensors can show different resistance values with the difference of temperature, and different resistance values can make electric current or the terminal voltage passed through on thermally dependent resistor different, thereby by detecting the variation of electric current or terminal voltage, variation that can detecting temperature.
Based on this principle, thermistor type sensors can be arranged on the inboard place of air inlet grid of vehicle, be used for the outer ambient temperature of probe vehicles.Simultaneously, such installation method makes sensor can not be exposed to outside car, thereby can not affect the overall appearance of vehicle.
Change in resistance on sensor is converted into voltage signal is sent to processing unit in air-conditioner controller, processing unit is converted into temperature value receiving voltage signal, and according to the strategy of setting, temperature value is presented on telltale.
For the car external environment temperature value that shows on telltale is revised, at first need to define the dynamic range of shown temperature:
Wherein, T
1
The minimum of the temperature that can show on telltale,
T
2
The peak of the temperature that can show on telltale, and
T is the dynamic range of the shown temperature of telltale.
In the present invention, when car external environment temperature lower than T
1
The time, the direct display environment temperature of telltale is T
1
And work as car external environment temperature higher than T
2
The time, the direct display environment temperature of telltale is T
2
T
1
And T
2
Value can decide with the upper and lower limit of the temperature that telltale can show, also can with vehicle usually the required specified temp dynamic range of controlling decide.For example, can set T
1
Be-40
o
C, and with T
2
Be set as 50
o
C。Certainly, T
1
And T
2
Value also can become other value according to the actual condition of service of vehicle and the performance setting of the telltale that uses.
Secondly, define one
T 0 The temperature scale definite value is called Cold Temperature or hot car temperature.When the water temperature of vehicle motor is less than or equal to
T 0 The time, we claim vehicle to be in cold car state; And when the water temperature of driving engine higher than
T 0 The time, be called hot car state.Generally,
T 0 T 2 For example, we can define
T 0 Be 60
o C。That is to say, work as T 60 o During C, be hot car state, and when T＜60 o During C, be cold car state.
T o Position and the distance dependent of calibration value and machinery space thermal field characteristic and machinery space each system can obtain by Experimental Calibration
T o Value.
Here it needs to be noted the T here 1 =-40 o C, T 2 =50 o C and
T 0 =60
o The special value that C just adopts for the convenience of call for Votes can not be only applicable to these special values to these special value understanding cost inventions.These temperature values can be decided with concrete condition of service.This is that those skilled in the art can understand.
In the present invention, adopt altogether two sensors: one is engine water temperature sensor, is contained in driving engine, and for detection of Engine Coolant Temperature, the judgement vehicle is Re Che or cold car; Another is environment temperature sensor, is contained on front grid, is used for probe vehicles external environment temperature, and during hot car, this environment temperature sensor easily is subject to the impact of engine radiation and makes its temperature reading depart from actual value.
In addition, our regulation when the last secondary environment temperature value remembered in the EEPROM of Current Temperatures reading less than treater that environment temperature sensor detects, directly shows the Current Temperatures reading that this environment temperature sensor detects on telltale.
For example, when the garage temperature be 20
o
During C, vehicle directly shows that car external environment temperature is 20 in the garage time on telltale
o
C； And after vehicle sails out of the garage, if the reading of environment temperature sensor is-20
o
C, direct display environment temperature is-20 on telltale
o
C。
The correction of the environment temperature sensor reading in the present invention is adopted different temperature corrections when vehicle launch with in the Vehicle Driving Cycle process.The former is by the water temperature by the cooling-water temperature sensor detecting engine, and the temperature reading that environment temperature sensor is surveyed is revised.The latter is the moving velocity according to vehicle, and the temperature reading that environment temperature sensor is surveyed upgrades correction.
Gentlely according to engine water when with reference to the accompanying drawings, describing respectively the present invention and consider vehicle launch consider the specific embodiment according to Vehicle Speed, the temperature reading of environment temperature sensor revised in the Vehicle Driving Cycle process.
At first describe when considering vehicle launch and carry out according to Engine Coolant Temperature the specific embodiment that the environment temperature sensor temperature reading is revised.
During vehicle launch, adopt the temperature reading of the following step correction environment temperature sensor:
1) obtained the water temperature of driving engine by cooling-water temperature sensor;
2) Engine Coolant Temperature of being obtained according to cooling-water temperature sensor by the treater in air-conditioner controller, the judgement vehicle is cold car or hot car, and then judges whether and need to make correction to car external environment temperature.That is, if cold car, the current reading of direct display environment temperature sensor on telltale.And if hot car, the previous ambient temperature value of relatively remembering in the temperature reading of environment temperature sensor and eeprom memory also shows little person;
3) whether withdraw from the ON shelves according to ignition key, judge whether and current environmental temperature need to be remembered in the EEPROM of air-conditioner controller.
Adopt above step, just completed the correction that the present invention carries out car external environment temperature reading when vehicle launch.
As shown in Figure 1.At first car key is placed in unlatching (ON) shelves.Then, obtained the current water temperature value of driving engine by engine water temperature sensor, and the current water temperature value of the driving engine that obtains be sent to treater, by treater with received current water temperature value and predefined T
o
The temperature scale definite value compares.When received current water temperature value is less than or equal to T
o
The time, judge that at this moment vehicle is cold car; And work as received current water temperature value greater than T
o
, illustrate that at this moment vehicle is hot car.
If it is cold car that judged result shows vehicle, the current environmental temperature reading that environment temperature sensor is measured is shown as when front truck external environment temperature on telltale.And if judged result shows that vehicle is hot car, judge the temperature value whether the current environmental temperature reading is remembered in the EEPROM less than treater.
The temperature reading of the current environmental temperature sensor on telltale during with measured cold car is shown as after front truck external environment temperature, can also follow to judge that again vehicle ignition key is to withdraw from the ON shelves.If judged result shows ignition key and has withdrawed from the ON shelves, shown ambient temperature value stored in the EEPROM of treater.And if judged result shows that ignition key still is in the ON shelves, turn back to the water temperature value of again being obtained driving engine by cooling-water temperature sensor.
On the other hand, if judge that in front vehicle is when being in hot car, with the temperature value remembered in the temperature reading of environment temperature sensor and last EEPROM relatively.If the temperature reading of sensor is less than the temperature value of remembering in last EEPROM, measured environment temperature sensor temperature reading is presented on telltale as working as front truck external environment temperature.Otherwise the last secondary environment temperature reading that will remember is shown as current environmental temperature.Afterwards, situation when being cold car with vehicle is identical, whether the ignition key that then judges vehicle withdraws from the ON shelves: withdrawed from the ON shelves if judged result is ignition key, shown ambient temperature value is remembered in EEPROM, if not, turn back to the front, again attempt obtaining the water temperature value of driving engine.
o
Temperature value can be set as the case may be.For example, can be with T
o
Temperature value is set as 60
o
C。
The following describes vehicle in the process of moving, how to upgrade according to the speed of a motor vehicle temperature of adjusting on telltale and show.
According to the speed of a motor vehicle, the method that the temperature reading on telltale upgrades adjustment is comprised following steps in the present invention:
Step 1 is obtained the current reading of environment temperature sensor;
Step 2 reads Engine Coolant Temperature by cooling-water temperature sensor, and the judgement vehicle is cold car or hot car; If cold car, the direct reading of display environment temperature sensor on telltale is if hot car enters step 3;
Step 3, the relatively size of environment temperature sensor reading and current display environment temperature value; If the current displays temperature value of environment temperature sensor read-around ratio is little, the direct temperature reading of display environment temperature sensor; If the current displays temperature value of environment temperature sensor read-around ratio is high, enter step 4;
Step 4 is obtained current car speed;
Step 5, when the speed of a motor vehicle less than a certain predetermined value V
1
The time, the previous car external environment temperature value of remembering in the car external environment temperature reading that the comparison environment temperature sensor reads and treater shows little person on telltale.Otherwise, if the speed of a motor vehicle is greater than this predetermined value V
1
The time, allow the car external environment temperature value that shows on telltale with the difference of the speed of a motor vehicle, duration according to temperature rising duration setting module sets rose within the regular hour, until the car external environment temperature value that shows equals the actual car external environment temperature value that environment temperature sensor reads.
Adopt above step, with regard to having completed according to the speed of a motor vehicle, the temperature reading on telltale is upgraded adjustment.
As shown in the example of Fig. 2.When the speed of a motor vehicle less than V
1
The time, according to the comparative result of the previous ambient temperature value of remembering in the current reading of environment temperature sensor and EEPROM, the little person in showing both.When the speed of a motor vehicle more than or equal to V
1
The time, if the car external environment temperature that environment temperature sensor detects higher than the last secondary environment temperature value of remembering in EEPROM, allows the ambient temperature that telltale shows to rise.
For example, 25 ℃ of basement garage temperature, outside the garage, temperature is 30 ℃, is cold car when the garage has just started, directly display environment temperature sensor reading should be 25 ℃; After vehicle rolled the garage away from, if Engine Coolant Temperature is judged as cold car lower than 50 degree, thermal radiation can not exert an influence to environment temperature sensor, directly showed 30 ℃ of sensor readings on telltale; If vehicle is the idling a very long time in the garage, Engine Coolant Temperature is rolled the garage away from after spending higher than 50 again, shows that outer temperature is still 25 ℃, suppose with 30 kms/hour travel, allow to rise in 3 minutes 1 ℃, the speed of a motor vehicle reach 70 kms/hour after, allows to go up 1 in 1 minute and spends.By this way, until the temperature displayed value of telltale equals the car external environment temperature value that environment temperature sensor reads immediately.
T in Fig. 2
1
, t
2
, t
3
, v
1
, v
2
, v
3
, v
4
Be calibration value, each numerical value of different automobile types can be slightly different.For example, for a certain vehicle, set t
1
=600s; t
2
=180s; t
3
=60s; v
1
=10 kms/hour; v
2
=30 kms/hour; v
3
=70 kms/hour; v
4
=80 kms/hour.
Fig. 3 is the schematic diagram that the present invention is used for shown ambient temperature is upgraded the control apparatus of adjusting.
As shown in Figure 3, after ignition key is placed in a fire screen, at first be in starting state or motoring condition according to the speed of a motor vehicle of being obtained by speed of a motor vehicle acquisition module by treater judgement vehicle.
When vehicle is in starting state, by the water temperature of cooling-water temperature sensor detecting engine.And the temperature that the gentle cold and hot car setting state module of the engine water that records is set compares, and is in cold car state or hot car state with the judgement vehicle.For example, if the Cold Temperature that sets is 60
o
C works as the water temperature of driving engine so greater than 60
o
During C, vehicle belongs to hot car; And the water temperature of working as driving engine is less than or equal to 60
o
During C, vehicle belongs to cold car.
Then, if when vehicle is in cold car state, directly show current environment temperature sensor reading on telltale.And when vehicle was in hot car, a front sensor temperature reading of storing in the ambient temperature that environment temperature sensor that records is recorded and the EEPROM of treater compared.If measured ambient temperature is less than or equal to the front ambient temperature reading that once shows of storing, show on telltale directly that measured ambient temperature is as working as front truck external environment temperature.And if measured ambient temperature shows the last secondary environment temperature value of storing in EEPROM during greater than the previous temperature value stored in EEPROM on telltale.And judge by treater whether ignition key locates to withdraw from the ON state.Withdraw from the ON state if judged result is ignition key, shown previous storage at ambient temperature is arrived in the EEPROM of treater.If ignition key still is in the ON state, continues to be obtained by cooling-water temperature sensor the water temperature value of driving engine, and continue the operation of left-hand component as shown in Figure 1.
Another kind of situation is the correction of the environment temperature sensor reading that carries out according to the speed of a motor vehicle.When the speed of a motor vehicle less than V
1
The time, according to the comparative result of the ambient temperature value of the current reading of environment temperature sensor and current demonstration, the little person in showing both.And in the speed of a motor vehicle greater than V
1
Situation under.The displays temperature adjustment module will according to the displays temperature duration that the duration setting module sets that rises, be upgraded and regulate shown temperature.
Simultaneously with reference to example shown in Figure 2, as shown in the example of Fig. 2.When the speed of a motor vehicle less than V
1
The time, the comparative result according to the ambient temperature value of the current reading of environment temperature sensor and current demonstration shows little person.When the speed of a motor vehicle more than or equal to V
1
The time, if the car external environment temperature that environment temperature sensor detects higher than the ambient temperature value of current demonstration, allows the ambient temperature that telltale shows to rise.
For example, 25 ℃ of basement garage temperature, outside the garage, temperature is 30 ℃, is cold car when the garage has just started, and shows that directly sensor reading should be 25 ℃; After vehicle rolls the garage away from, if Engine Coolant Temperature lower than 50 degree, can thermal radiation not arrive sensor, directly show 30 ℃ of sensor readings; If vehicle is the idling a very long time in the garage, Engine Coolant Temperature is rolled the garage away from after spending higher than 50 again, shows that outer temperature is still 25 ℃, suppose with 30 kms/hour travel, allow to rise in 3 minutes 1 ℃, the speed of a motor vehicle to 70 kms/hour after, allows to go up 1 in 1 minute and spends.By this way, until the temperature displayed value of telltale equals the car external environment temperature value that environment temperature sensor reads immediately.
Above, describe specific embodiments of the invention with reference to the accompanying drawings.But those skilled in the art can understand, in the situation that do not depart from principle of the present invention and spirit, can also make some modifications and changes to the above embodiment of the present invention.Above mentioned particular temperature value, the specific speed of a motor vehicle and duration setting value just in order to describe convenience of the present invention for example, can not be understood as is limitation of the present invention.Those skilled in the art can understand, and these numerical value are actually and can set in addition according to concrete condition of service.The description of embodiment is only only to only limit to these embodiment in order to make those skilled in the art can understand, implement the present invention, the present invention should not to be understood.Protection scope of the present invention is limited by claims.
Claims (19)
1. the modification method of an automobile-used environment temperature sensor reading comprises:
Obtained the water temperature value of vehicle motor by cooling-water temperature sensor;
By the Engine Coolant Temperature value that treater obtains according to sensor, be in cold car state or hot car state during the judgement vehicle launch; And
The last secondary environment temperature value of remembering in the ambient temperature value that described environmental sensor is obtained and treater relatively and will be presented on telltale by the little person that comparative result obtains.
2. the modification method of automobile-used environment temperature sensor reading as claimed in claim 1 also comprises:
Define one
T o The temperature scale definite value, described
T o Be in hot car state or cold car state during the described vehicle launch of temperature calibration value representation,
Wherein, the Engine Coolant Temperature that detects when described cooling-water temperature sensor less than or equal to
T o During the temperature scale definite value, described vehicle is in cold car state, and the Engine Coolant Temperature that detects when described cooling-water temperature sensor higher than
T o During the temperature scale definite value, described vehicle is in hot car state.
3. the modification method of automobile-used environment temperature sensor reading as claimed in claim 1 also comprises: define a dynamic temperature scope:
T 1 ＜T＜T 2 , wherein,
T 1 With
T 2 The upper and lower limit value that represents respectively the temperature that shows on described telltale.
4. the modification method of automobile-used environment temperature sensor reading as claimed in claim 3 also comprises: the car external environment temperature that detects when environmental sensor is lower than the lower limit of described dynamic temperature scope
T 1 The time, directly show on described telltale
T 1 , and the car external environment temperature that detects when described environmental sensor is higher than the higher limit of dynamic temperature scope
T 2 The time, directly show on described telltale
T 2
5. the modification method of automobile-used environment temperature sensor reading as claimed in claim 2, is characterized in that, and is described
T o Position and the distance dependent of calibration value and machinery space thermal field characteristic and machinery space each system can obtain by Experimental Calibration
T o Value.
6. the modification method of automobile-used environment temperature sensor reading as claimed in claim 3, is characterized in that,
T 1 =-40
oC。
7. the modification method of temperature sensor for vehicle reading as claimed in claim 3, is characterized in that,
T 2 =50
oC。
8. the modification method of automobile-used environment temperature sensor reading as claimed in claim 1 or 2, when vehicle was in cold car, the car external environment temperature reading that directly described environment temperature sensor is detected was presented on telltale as current environmental temperature.
9. the modification method of automobile-used environment temperature sensor reading as claimed in claim 1 or 2 also comprises:
When vehicle is in hot car, a front temperature value of the car external environment temperature that described environment temperature sensor is detected and the memory of described treater relatively,
If comparative result shows the car external environment temperature that described environment temperature sensor detects and is less than or equal to the front temperature value that described treater is remembered, show the car external environment temperature value that described environment temperature sensor detects on described telltale, and
If the car external environment temperature that the described environment temperature sensor of comparative result demonstration detects greater than a front temperature value of described treater memory, shows a front temperature value of described treater memory on described telltale.
10. the modification method of automobile-used ambient temperature temperature sensor reading as claimed in claim 1 also comprises:
Judge by described treater whether described ignition key withdraws from the ON shelves, and
If judged result shows described ignition key and withdrawed from the ON shelves, with the car external environment temperature memory that shows in described EEPROM, and
If judged result shows described ignition key and do not withdraw from the ON shelves, repeat each step claimed in claim 1.
11. the modification method of an automobile-used environment temperature sensor reading comprises:
At first read the current reading of car external environment temperature by environment temperature sensor;
Obtained the speed of a motor vehicle of Vehicle Driving Cycle by treater; And
The previous car external environment temperature value of remembering in the current reading of car external environment temperature that will be read by described environment temperature sensor and described treater compares, and
Show comparative result on telltale.
12. the modification method of automobile-used environment temperature sensor reading as claimed in claim 11 is characterized in that, during less than a certain predetermined speed, shows the little person of comparative result when the described speed of a motor vehicle on described telltale.
13. the modification method of automobile-used environment temperature sensor reading as claimed in claim 11, it is characterized in that, when the described speed of a motor vehicle during greater than a certain predetermined speed, the car external environment temperature value that allows to show on telltale rose within the regular hour, until the car external environment temperature value that described telltale shows equals the actual car external environment temperature value that described environment temperature sensor reads.
14. the modification method of automobile-used environment temperature sensor reading as claimed in claim 13 is characterized in that, the car external environment temperature value that allows to show on described telltale rises within the regular hour and is that difference with the speed of a motor vehicle rises.
15. an automobile-used ambient temperature is upgraded control apparatus, it is characterized in that, it comprises:
Temperature rising duration setting module, the duration of regulating is upgraded in ambient temperature rising shown when being used for the default different speed of a motor vehicle;
Speed of a motor vehicle acquisition module is used for obtaining vehicle speed value;
Environment temperature sensor is used for the outer ambient temperature of probe vehicles;
Cooling-water temperature sensor is for the water temperature value of obtaining driving engine;
Cold and hot car setting state module is used for default described vehicle and is in cold car or the temperature value of hot car;
Comparator 1;
Comparator 2;
EEPROM；
Treater; And
Telltale,
Wherein, the preset vehicle speed that the instant speed of a motor vehicle that described comparator 2 obtains speed of a motor vehicle acquisition module and described displays temperature rising duration setting module set compares,
Wherein, the default temperature value of the water temperature that described comparator 1 obtains described cooling-water temperature sensor and described cold and hot car setting module relatively and is in cold car or hot car by described treater according to the described vehicle of comparative result judgement,
Wherein, shown ambient temperature on telltale that described EEPROM is used for storing ignition key when withdrawing from the ON shelves, treater is processed the comparative result of described comparator 1 and comparator 2, and the ambient temperature value that described environment temperature sensor obtains is revised, be presented on described telltale.
16. automobile-used ambient temperature as claimed in claim 15 is upgraded control apparatus, it is characterized in that, when described vehicle is in cold car, directly show the current environmental temperature sensor reading on described telltale, when described vehicle is in hot car, the last secondary environment temperature reading of storing in the ambient temperature that environment temperature sensor is recorded and described memory device compares, if measured described ambient temperature is less than or equal to the temperature reading of the last secondary environment temperature sensor of storing, show on described telltale directly that measured ambient temperature is as working as front truck external environment temperature, if and measured ambient temperature is during greater than the previous temperature value stored in described memory device, show the last secondary environment temperature value of storing in described memory device on described telltale.
17. automobile-used ambient temperature as claimed in claim 15 is upgraded control apparatus, it is characterized in that, described treater judges also whether described vehicle ignition key withdraws from the ON shelves, if being ignition key, judged result withdraws from the ON shelves, shown current environmental temperature is stored in described EEPROM, if ignition key still is in the ON shelves, continue to be obtained by described cooling-water temperature sensor the water temperature value of driving engine.
18. automobile-used ambient temperature as claimed in claim 15 is upgraded control apparatus, it is characterized in that, when the judgement of described treater by described comparator 2 speed of a motor vehicle relatively during greater than a certain speed of a motor vehicle, allow displays temperature to rise, the duration that described displays temperature adjustment module will set according to described temperature rising duration setting module upgrades and regulates shown temperature.
19. automobile-used ambient temperature as claimed in claim 15 is upgraded control apparatus, it is characterized in that, described treater comprises EEPROM, shown ambient temperature on telltale when withdrawing from the ON shelves for the storage ignition key.
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| CN2011104407615A CN103171501A (en) | 2011-12-26 | 2011-12-26 | Correcting method and correcting device of environment temperature for vehicle |
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| CN108749572A (en) * | 2018-04-11 | 2018-11-06 | 航天科技控股集团股份有限公司 | A kind of vehicle outer temperature display modification method on automobile instrument |
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| CN110608106A (en) * | 2019-09-29 | 2019-12-24 | 潍柴动力股份有限公司 | Temperature processing method and device |
| CN111061316A (en) * | 2018-10-17 | 2020-04-24 | 罗伯特·博世有限公司 | Method for initializing ambient temperature, dynamic adjustment method and readable program carrier |
| CN112539856A (en) * | 2020-11-20 | 2021-03-23 | 奇瑞商用车（安徽）有限公司 | Method for compensating environmental temperature for vehicle |
| CN112577629A (en) * | 2019-09-11 | 2021-03-30 | 广州汽车集团股份有限公司 | Method and system for correcting temperature acquired by external temperature sensor of automobile |
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| CN109986925A (en) * | 2017-12-29 | 2019-07-09 | 宝沃汽车（中国）有限公司 | Air conditioning control method, system and the vehicle of vehicle |
| CN108749572A (en) * | 2018-04-11 | 2018-11-06 | 航天科技控股集团股份有限公司 | A kind of vehicle outer temperature display modification method on automobile instrument |
| CN108556631A (en) * | 2018-04-11 | 2018-09-21 | 航天科技控股集团股份有限公司 | automobile external temperature signal processing method |
| CN111061316A (en) * | 2018-10-17 | 2020-04-24 | 罗伯特·博世有限公司 | Method for initializing ambient temperature, dynamic adjustment method and readable program carrier |
| CN109839206A (en) * | 2019-03-28 | 2019-06-04 | 麦格纳斯太尔汽车技术（上海）有限公司 | A kind of vehicle-mounted outer temperature measurement correction system |
| CN112577629A (en) * | 2019-09-11 | 2021-03-30 | 广州汽车集团股份有限公司 | Method and system for correcting temperature acquired by external temperature sensor of automobile |
| CN110608106A (en) * | 2019-09-29 | 2019-12-24 | 潍柴动力股份有限公司 | Temperature processing method and device |
| CN112539856A (en) * | 2020-11-20 | 2021-03-23 | 奇瑞商用车（安徽）有限公司 | Method for compensating environmental temperature for vehicle |
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Application publication date: 20130626 |