CN104833442A - Vehicle-outside-temperature detection method for vehicle, and system - Google Patents
Vehicle-outside-temperature detection method for vehicle, and system Download PDFInfo
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- CN104833442A CN104833442A CN201410160867.3A CN201410160867A CN104833442A CN 104833442 A CN104833442 A CN 104833442A CN 201410160867 A CN201410160867 A CN 201410160867A CN 104833442 A CN104833442 A CN 104833442A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K2201/00—Application of thermometers in air-conditioning systems
- G01K2201/02—Application of thermometers in air-conditioning systems in vehicles
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Abstract
The invention discloses a vehicle-outside-temperature detection method for a vehicle. The method comprises the following steps comparing current sunlight intensity with preset sunlight intensity when an engine of the vehicle runs, an engine water temperature value is higher than or equal to a preset temperature value and a current vehicle speed is lower than a preset vehicle speed, updating a vehicle-outside-temperature signal value by utilizing an auxiliary temperature detection device if the current sunlight intensity is less than the preset sunlight intensity, further determining whether a current vehicle-outside-temperature signal value detected by a temperature detection device is lower than the vehicle-outside-temperature signal value if the current sunlight intensity is not less than the preset sunlight intensity, and updating the vehicle-outside-temperature signal value by utilizing the temperature detection device if the current vehicle-outside-temperature signal value detected by the temperature detection device is lower than the vehicle-outside-temperature signal value. According to the vehicle-outside-temperature detection method, of the embodiment of the invention, for a vehicle, temperature outside the vehicle can be accurately detected, and user's needs can be met. The invention further provides a vehicle-outside-temperature detection method for the vehicle.
Description
Technical field
The present invention relates to technical field of automobile detection, particularly the outer temperature checking method of a kind of car for vehicle and system.
Background technology
When the literal meaning of the outer temperature of car is for driving or parking, the temperature of vehicle periphery air.Its original function occurred detects for the thermal load of automatic air condition, and in order to calculate current seasonal characteristic.Along with the Disposing rate of automatic air conditioning controller on car is more and more higher, the outer temperature of car also often shows in the instrument of vehicle as a functional configuration simultaneously.
The outer temperature of current car is mainly provided by an independent temperature sensor, inside its front air-inlet grille being arranged in car (before condenser).Owing to there is the heat radiation impact of the thermal components such as front deck water tank, condenser, engine.The practical application that collects of the outer temperature sensor of this car needs certain gathering algorithm.
This gathering algorithm is formed primarily of the speed of a motor vehicle, engine water temperature, engine down time:
1, time engine down time >=α (as 2 hours), temperature declines and upgrades, and temperature rises and upgrades;
2, during engine down time < α: temperature declines and upgrades, temperature rises and does not upgrade;
3, engine is not shut down:
1. engine water temperature≤T1(is as 50 DEG C), real-time update;
2. engine water temperature >T1:
A. the speed of a motor vehicle≤V1(is as 40km/h) time, temperature declines and upgrades, and temperature rises and do not upgrade;
During the b.V1< speed of a motor vehicle, temperature declines and upgrades, and temperature rises and upgrades.
Fast-changing situation can occur car external environment temperature following 3 kinds:
1, vehicle access tunnel on a highway;
2, vehicles while passing garage;
3, there was an abrupt change in weather, as summer suddenly rains cats and dogs.
There is following shortcoming in this gathering algorithm, such as: can not accurate inspection vehicle temperature outward when vehicles while passing garage.As the Beijing in winter, the temperature of underground garage can more than 15 DEG C, and the temperature outside morning is usually below 0 DEG C.Suppose that vehicle is after traveling after a while; the water temperature of engine can reach 85 DEG C usually; much larger than T1; and the speed of a motor vehicle driving to underground garage outside having is usually very low; as 5 ~ 20km/h, not reaching can the speed of a motor vehicle limit value that rises of the outer temperature of renovated bus, and what such instrument showed remains the temperature of vehicle outside garage; as lower than the outdoor temperature of 0 DEG C, there is the inaccurate defect of display.Thus cause client to complain.
Summary of the invention
The present invention is intended at least one of solve the problems of the technologies described above.
For this reason, the object of the invention is to propose the outer temperature checking method of a kind of car for vehicle.The method has the high advantage of the outer temperature detecting precision of car.
Another object of the present invention is to propose the outer system for detecting temperature of a kind of car for vehicle.
To achieve these goals, The embodiment provides the outer temperature checking method of a kind of car for vehicle, described vehicle comprises: sunlight strength pick-up unit, be arranged on vehicle and the auxiliary temperature pick-up unit be exposed to outside car and the temperature-detecting device be arranged in the air-inlet grille of vehicle, said method comprising the steps of: run at the engine of vehicle, engine water temperature be more than or equal to default water temperature and current vehicle speed is less than preset vehicle speed time, more current sunlight strength and default sunlight strength; If described current sunlight strength is less than described default sunlight strength, then described auxiliary temperature pick-up unit is utilized to upgrade the outer temperature signal value of car; If described current sunlight strength is not less than described default sunlight strength, then judge whether the outer temperature signal value of current vehicle that described temperature-detecting device detects is less than the outer temperature signal value of described car further; If so, then described temperature-detecting device is utilized to upgrade the outer temperature signal value of described car.
According to the outer temperature checking method of the car for vehicle of the embodiment of the present invention, the accuracy of detection of vehicle to the outer temperature of car can be improved, even if lower ground just enter the higher local time of temperature at vehicle by temperature, also auxiliary temperature pick-up unit or temperature-detecting device can be utilized to detect the outer temperature of car accurately according to the change of sunlight strength.Such as: when vehicle enters the higher underground parking of temperature by the outdoor that temperature is lower, due to weakening of sunlight strength, auxiliary temperature pick-up unit can be utilized to detect the outer temperature of current car exactly.Therefore, the method has the high advantage of accuracy of detection.
In addition, the outer temperature checking method of the car for vehicle according to the above embodiment of the present invention can also have following additional technical characteristic:
In some instances, also comprise: when the engine of vehicle runs and engine water temperature is not more than described default water temperature, utilize described temperature-detecting device to upgrade the outer temperature signal value of described car.
In some instances, also comprise: after the engine of vehicle is shut down, the stop time of more described engine and default stop time; If the stop time of described engine is greater than default stop time, then described temperature-detecting device is utilized to upgrade the outer temperature signal value of described car.
In some instances, also comprise: if be not more than default stop time stop time of described engine, then judge whether the outer temperature signal value of current vehicle that described temperature-detecting device detects is less than the outer temperature signal value of described car further; If so, then described temperature-detecting device is utilized to upgrade the outer temperature signal value of described car.
In some instances, described sunlight strength pick-up unit is sunlight sensor, and the auxiliary temperature pick-up unit outside described car and described temperature-detecting device are temperature sensor and auxiliary temperature pick-up unit outside described car is arranged on the downside of the outside rear-view mirror of described vehicle.
The embodiment of second aspect present invention provides the outer system for detecting temperature of a kind of car for vehicle, comprising: be arranged on the temperature-detecting device in the air-inlet grille of vehicle, for detecting the outer temperature of front deck car, to be arranged on vehicle and the auxiliary temperature pick-up unit be exposed to outside car, for the outer atmospheric temperature of inspection vehicle, sunlight strength pick-up unit, for detecting sunlight strength, and processor, described processor is connected with described auxiliary temperature pick-up unit with described temperature-detecting device respectively, run for the engine at vehicle, engine water temperature be more than or equal to default water temperature and current vehicle speed is less than preset vehicle speed time, the current sunlight strength that more described sunlight strength pick-up unit detects and default sunlight strength, and when described current sunlight strength is less than described default sunlight strength, the outer temperature signal value of the current vehicle utilizing described auxiliary temperature pick-up unit to detect upgrades the outer temperature signal value of car, otherwise, when the outer temperature signal value of current vehicle judging that described temperature-detecting device detects is less than temperature signal value outside described car, the outer temperature signal value of the current vehicle utilizing described temperature-detecting device to detect upgrades the outer temperature signal value of described car.
According to the outer system for detecting temperature of the car for vehicle of the embodiment of the present invention, the accuracy of detection of vehicle to the outer temperature of car can be improved, even if lower ground just enter the higher local time of temperature at vehicle by temperature, also auxiliary temperature pick-up unit or temperature-detecting device can be utilized to detect the outer temperature of car accurately according to the change of sunlight strength.Such as: when vehicle enters the higher underground parking of temperature by the outdoor that temperature is lower, due to weakening of sunlight strength, auxiliary temperature pick-up unit can be utilized to detect the outer temperature of current car exactly.Therefore, this system has the high advantage of accuracy of detection.In addition, this system has the advantage that structure is simple, cost is low.
In addition, the outer system for detecting temperature of the car for vehicle according to the above embodiment of the present invention can also have following additional technical characteristic:
In some instances, described processor also for: when the engine of vehicle runs and engine water temperature is not more than described default water temperature, the outer temperature signal value of the current vehicle utilizing described temperature-detecting device to detect upgrades the outer temperature signal value of described car.
In some instances; described processor also for: vehicle engine shut down after; the stop time of more described engine and default stop time; and when being greater than default stop time, the outer temperature signal value of the current vehicle utilizing described temperature-detecting device to detect upgrades the outer temperature signal value of described car stop time of described engine.
In some instances; described processor also for: when being not more than default stop time stop time of described engine; judge whether the outer temperature signal value of current vehicle that described temperature-detecting device detects is less than the outer temperature signal value of described car; and when the outer temperature signal value of the current vehicle that described temperature-detecting device detects is less than temperature signal value outside described car, the outer temperature signal value of the current vehicle utilizing described temperature-detecting device to detect upgrades the outer temperature signal value of described car.
In some instances, described processor is instrument, and described engine water temperature is supplied to described instrument by the engine management system of described vehicle, and the sunlight strength that described sunlight strength pick-up unit detects is sent to described instrument by the air-conditioner controller of vehicle.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is according to an embodiment of the invention for the process flow diagram of the outer temperature checking method of car of vehicle;
Fig. 2 is in accordance with another embodiment of the present invention for the process flow diagram of the outer temperature checking method of car of vehicle;
Fig. 3 is according to an embodiment of the invention for the structured flowchart of the outer system for detecting temperature of car of vehicle; And
Fig. 4 is according to an embodiment of the invention for the schematic diagram of the outer system for detecting temperature of car of vehicle.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
Describe according to the outer temperature checking method of the car for vehicle of the embodiment of the present invention and system below in conjunction with accompanying drawing.
Fig. 1 is according to an embodiment of the invention for the process flow diagram of the outer temperature checking method of car of vehicle.Wherein, vehicle comprises: sunlight strength pick-up unit, be arranged on vehicle and the auxiliary temperature pick-up unit be exposed to outside car and the temperature-detecting device be arranged in the air-inlet grille of vehicle.Wherein, sunlight strength pick-up unit is such as sunlight sensor.Temperature-detecting device and auxiliary temperature pick-up unit are such as temperature sensor, and temperature-detecting device can be the temperature sensor of (before condenser) inside the front air-inlet grille being located at vehicle of standard configuration on car.Auxiliary temperature pick-up unit is such as arranged on the downside of the outside rear-view mirror of vehicle, such as, have air vent in the bottom of outside rear-view mirror, and auxiliary temperature pick-up unit can be exposed in atmosphere.Sunlight strength pick-up unit is such as sunlight sensor, and the auxiliary temperature pick-up unit outside car and temperature-detecting device are temperature sensor.
As shown in Figure 1, according to an embodiment of the invention for the outer temperature checking method of car of vehicle, comprise the steps:
Step S101: run at the engine of vehicle, engine water temperature be more than or equal to default water temperature T 1 and current vehicle speed is less than preset vehicle speed V1 time, more current sunlight strength and default sunlight strength W.
Wherein, default sunlight strength W is often referred to the sunlight strength higher than the darker place of sunlight strength, as underground parking.
Step S102: if current sunlight strength is less than default sunlight strength W, then utilize auxiliary temperature pick-up unit to upgrade the outer temperature signal value of car.
Specifically, owing to exposing in atmosphere on the downside of the outside rear-view mirror that auxiliary temperature pick-up unit is such as arranged on vehicle, therefore, it is less that auxiliary temperature pick-up unit is subject to objective condition impact, can open auxiliary temperature pick-up unit, the outer temperature of the car detected to utilize auxiliary temperature pick-up unit is more accurate.
It should be noted that, inside the front air-inlet grille that temperature-detecting device is located at vehicle (before condenser), be vulnerable to the heat radiation impact of the thermal components such as such as front deck water tank, condenser, engine, therefore, inaccurate in order to place the outer temperature of the car detected, carry out temperature detection to utilize auxiliary temperature pick-up unit.
Step S103: if current sunlight strength is not less than default sunlight strength W, then judge whether the outer temperature signal value of current vehicle that temperature-detecting device detects is less than the outer temperature signal value of car further.
Step S104: if the outer temperature signal value of current vehicle that temperature-detecting device detects is less than the outer temperature signal value of car, then utilize temperature-detecting device to upgrade the outer temperature signal value of car.
It should be noted that, utilizing auxiliary temperature pick-up unit to detect the outer temperature of car is that the outer temperature of car in order to detect due to temperature-detecting device is under certain conditions inaccurate.Such as: after vehicle travels a period of time, and place that sunlight strength stronger lower by temperature (as winter is outdoor) enters the higher and place (as underground parking) that sunlight strength is more weak of temperature, now, the heat radiation that temperature-detecting device is vulnerable to as thermal components such as front deck water tank, condenser, engines affects, therefore, the detection that auxiliary temperature pick-up unit carries out the outer temperature of car is opened.
And generally, such as step S103 and step S104, the outdoor temperature detected due to temperature-detecting device is also more accurate, temperature-detecting device can be utilized to detect outdoor temperature, auxiliary temperature pick-up unit can be reduced start and the energy consumption run and meet the requirement of the outer temperature detecting precision of car, meet the demand of user.
In the examples described above, T1 is but is not limited to: 50 DEG C.V1 is but is not limited to: 40,000 ms/h.W can determine based on experience value, such as, obtain default sunlight strength W according to certain regional sunlight strength of common outdoor and the sunlight strength of underground parking.
According to the method for the embodiment of the present invention, the accuracy of detection of vehicle to the outer temperature of car can be improved, even if lower ground just enter the higher local time of temperature at vehicle by temperature, also auxiliary temperature pick-up unit or temperature-detecting device can be utilized to detect the outer temperature of car accurately according to the change of sunlight strength.Such as: when vehicle enters the higher underground parking of temperature by the outdoor that temperature is lower, due to weakening of sunlight strength, auxiliary temperature pick-up unit can be utilized to detect the outer temperature of current car exactly.Therefore, the method has the high advantage of accuracy of detection.
The method of the embodiment of the present invention also comprises: when the engine of vehicle runs and engine water temperature is not more than default water temperature T 1, can, in conjunction with the outer temperature detection mode of existing car, utilize temperature-detecting device to upgrade the outer temperature signal value of car.
In addition, the method also further combined with the outer temperature detection mode of existing car, such as, can comprise: after the engine of vehicle is shut down, stop time of comparison engine and default stop time α; If be greater than α default stop time the stop time of engine, then temperature-detecting device is utilized to upgrade the outer temperature signal value of car.Further, if be not more than α default stop time the stop time of described engine, then judge whether the outer temperature signal value of current vehicle that temperature-detecting device detects is less than the outer temperature signal value of car further; If so, then temperature-detecting device is utilized to upgrade the outer temperature signal value of car.
Wherein, preset stop time α for but be not limited to 2 hours.
As a concrete example, as shown in Figure 2, the outer temperature checking method of the car for vehicle of the embodiment of the present invention comprises the following steps:
Step S201: judge whether transmitter starts, if engine starts, then performs step S202, otherwise performs step S210.
Step S202: judge whether transmitter water temperature is more than or equal to default water temperature T 1, if it is performs step S203, otherwise performs step S208.
Step S203: judge whether current vehicle speed is more than or equal to preset vehicle speed V1, if not, then performs step S204, otherwise performs step S208.
Step S204: whether more current sunlight strength is more than or equal to default sunlight strength W, if not, then performs step S205, otherwise performs step S209.
Step S205: by auxiliary temperature pick-up unit (temperature sensor as outer in aid vehicle) the outer temperature of inspection vehicle.If the outer temperature of car that the outer temperature sensor of aid vehicle detects is preserved higher than vehicle and the outer temperature signal value of the car shown, then perform step S206, otherwise perform step S207.
Step 206: above-mentioned vehicle to be preserved and the outer temperature signal value of the car shown carries out risings renewal.
Step S207: above-mentioned vehicle to be preserved and the outer temperature signal value of the car shown carries out declines renewal.
Step S208: by temperature-detecting device (temperature sensor as outer in front deck car) the outer temperature of inspection vehicle.If the outer temperature of car that the outer temperature sensor of front deck car detects is preserved higher than vehicle and the outer temperature signal value of the car shown, then perform step S206, otherwise perform step S207.
Step S209: judge whether the front deck car outer temperature of current vehicle that temperature sensor detects is less than vehicle and preserves and the outer temperature signal value of the car shown, and if so, then performs step S207 outward.Otherwise vehicle not to be preserved and the outer temperature signal value of the car shown changes.
Step S210: judge whether transmitter is greater than α default stop time stop time, if so, then performs step S208, otherwise goes to step S209.
In one embodiment of the invention, sunlight strength pick-up unit is such as sunlight sensor, and the auxiliary temperature pick-up unit outside car and temperature-detecting device are temperature sensor and auxiliary temperature pick-up unit outside car is arranged on the downside of the outside rear-view mirror of vehicle.
According to the outer temperature checking method of the car for vehicle of the embodiment of the present invention, residing for vehicle during environment change, the outer temperature of car also can be detected exactly, to meet the demand of user.The method has the high advantage of the outer temperature detecting precision of car.
Fig. 3 is according to an embodiment of the invention for the outer system for detecting temperature of car of vehicle.As shown in Figure 3, according to an embodiment of the invention for the outer system for detecting temperature 300 of car of vehicle, comprising: temperature-detecting device 310, auxiliary temperature pick-up unit 320, sunlight strength pick-up unit 330 and processor 340.
Particularly, temperature-detecting device 310 is arranged in the air-inlet grille of vehicle, for detecting the outer temperature of front deck car.Auxiliary temperature pick-up unit 320 to be arranged on vehicle and to be exposed to outside car, for the outer atmospheric temperature of inspection vehicle.Sunlight strength pick-up unit 330 is for detecting sunlight strength.Processor 340 is connected with auxiliary temperature pick-up unit 320 with temperature-detecting device 310 respectively, run for the engine at vehicle, engine water temperature be more than or equal to default water temperature and current vehicle speed is less than preset vehicle speed time, the current sunlight strength that comparison sunlight strength pick-up unit detects and default sunlight strength, and when current sunlight strength is less than default sunlight strength, the outer temperature signal value of the current vehicle utilizing auxiliary temperature pick-up unit to detect upgrades the outer temperature signal value of car, otherwise when the outer temperature signal value of current vehicle judging that temperature-detecting device detects is less than temperature signal value outside described car, the outer temperature signal value of the current vehicle utilizing temperature-detecting device to detect upgrades the outer temperature signal value of car.
According to the system of the embodiment of the present invention, the accuracy of detection of vehicle to the outer temperature of car can be improved, even if lower ground just enter the higher local time of temperature at vehicle by temperature, also auxiliary temperature pick-up unit or temperature-detecting device can be utilized to detect the outer temperature of car accurately according to the change of sunlight strength.Such as: when vehicle enters the higher underground parking of temperature by the outdoor that temperature is lower, due to weakening of sunlight strength, auxiliary temperature pick-up unit can be utilized to detect the outer temperature of current car exactly.Therefore, this system has the high advantage of accuracy of detection.
In one embodiment of the invention, processor 340 is also for when the engine of vehicle runs and engine water temperature is not more than default water temperature, and the outer temperature signal value of the current vehicle utilizing temperature-detecting device 310 to detect upgrades the outer temperature signal value of car.
In one embodiment of the invention; processor 340 is also for after the engine shutdown of vehicle; the stop time of comparison engine and default stop time; and when being greater than default stop time, the outer temperature signal value of the current vehicle utilizing temperature-detecting device 310 to detect upgrades the outer temperature signal value of car stop time of engine.
Furthermore; processor 340 is stop time of engine also for when being not more than default stop time; judge whether the outer temperature signal value of current vehicle that temperature-detecting device 310 detects is less than the outer temperature signal value of car; and when the outer temperature signal value of the current vehicle that temperature-detecting device 310 detects is less than temperature signal value outside car, the outer temperature signal value of the current vehicle utilizing temperature-detecting device 310 to detect upgrades the outer temperature signal value of car.
As shown in Figure 4, as a concrete example, processor 340 is such as instrument 340, and engine water temperature is supplied to instrument 340 by the engine management system 1 of vehicle, and the sunlight strength that sunlight strength pick-up unit 330 detects is sent to instrument 340 by the air-conditioner controller 2 of vehicle.
Specifically, shown in composition graphs 4, instrument 340 is connected with the outer temperature sensor (i.e. temperature-detecting device 310) of front deck car, the outer temperature sensor (i.e. auxiliary temperature pick-up unit 320) of aid vehicle, air-conditioner controller 2 is connected with sunlight sensor (i.e. sunlight strength pick-up unit 330), engine management system 1(and engine EMS) engine water temperature data are provided, carry out data communication by CAN between air-conditioner controller 2, instrument 340, engine management system 1.
The sunlight strength signal that sunlight sensor 330 detects by air-conditioner controller 2 sends to instrument 340 by CAN, and engine water temperature signal, engine down time, Engine Start Signal, vehicle speed signal are sent to instrument 340 by CAN by engine management system 1.
Instrument 340 compares according to the outer temperature signal value of current vehicle in the signal value of the outer temperature sensor 310 of the front deck car detected and instrument 340, if the outer temperature signal value of signal value > current vehicle of the outer temperature sensor 340 of front deck car, for the outer temperature of front deck car rises; If be less than, be then that the outer temperature of front deck car declines.
Instrument 340 compares according to the outer temperature signal value of current aid vehicle in the signal value of the outer temperature sensor 320 of the aid vehicle detected and instrument 340, if the outer temperature signal value of the current aid vehicle of signal value > of the outer temperature sensor 320 of aid vehicle, for the outer temperature of aid vehicle rises; If be less than, be then that the outer temperature of aid vehicle declines.
Instrument 340 is according to each signal received, and perform the outer temperature acquisition algorithm of car, namely instrument 340 performs the step S101-step S104 of such as above-described embodiment, or step S201 is to step S210, thus realizes the outer temperature acquisition of car accurately.This system can by existing instrument 340, air-conditioner controller 2, engine management system 1, and increases the outer temperature sensor 320 of an aid vehicle and form.Therefore, it is low that this system has cost, the simple advantage of structure.
According to the outer system for detecting temperature of the car for vehicle of the embodiment of the present invention, residing for vehicle during environment change, the outer temperature of car also can be detected exactly, to meet the demand of user.The method has the high advantage of the outer temperature detecting precision of car.In addition, this system architecture is simple, cost is low.
In the description of this instructions, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalency thereof.
Claims (10)
1. the outer temperature checking method of the car for vehicle, it is characterized in that, described vehicle comprises: to be arranged on vehicle and the auxiliary temperature pick-up unit be exposed to outside car and the temperature-detecting device be arranged in the air-inlet grille of vehicle, to said method comprising the steps of:
Run at the engine of vehicle, engine water temperature be more than or equal to default water temperature and current vehicle speed is less than preset vehicle speed time, more current sunlight strength and default sunlight strength;
If described current sunlight strength is less than described default sunlight strength, then described auxiliary temperature pick-up unit is utilized to upgrade the outer temperature signal value of car;
If described current sunlight strength is not less than described default sunlight strength, then judge whether the outer temperature signal value of current vehicle that described temperature-detecting device detects is less than the outer temperature signal value of described car further;
If so, then described temperature-detecting device is utilized to upgrade the outer temperature signal value of described car.
2. method according to claim 1, is characterized in that, also comprises:
When the engine of vehicle runs and engine water temperature is not more than described default water temperature, described temperature-detecting device is utilized to upgrade the outer temperature signal value of described car.
3. method according to claim 1, is characterized in that, also comprises:
After the engine of vehicle is shut down, the stop time of more described engine and default stop time;
If the stop time of described engine is greater than default stop time, then described temperature-detecting device is utilized to upgrade the outer temperature signal value of described car.
4. method according to claim 3, is characterized in that, also comprises:
If the stop time of described engine is not more than default stop time, then judge whether the outer temperature signal value of current vehicle that described temperature-detecting device detects is less than the outer temperature signal value of described car further;
If so, then described temperature-detecting device is utilized to upgrade the outer temperature signal value of described car.
5. the method according to any one of claim 1-4, it is characterized in that, described sunlight strength pick-up unit is sunlight sensor, and the auxiliary temperature pick-up unit outside described car and described temperature-detecting device are temperature sensor and auxiliary temperature pick-up unit outside described car is arranged on the downside of the outside rear-view mirror of described vehicle.
6., for the outer system for detecting temperature of car of vehicle, it is characterized in that, comprising:
Be arranged on the temperature-detecting device in the air-inlet grille of vehicle, for detecting the outer temperature of front deck car;
To be arranged on vehicle and the auxiliary temperature pick-up unit be exposed to outside car, for the outer atmospheric temperature of inspection vehicle;
Sunlight strength pick-up unit, for detecting sunlight strength; And
Processor, described processor is connected with described auxiliary temperature pick-up unit with described temperature-detecting device respectively, run for the engine at vehicle, engine water temperature be more than or equal to default water temperature and current vehicle speed is less than preset vehicle speed time, the current sunlight strength that more described sunlight strength pick-up unit detects and default sunlight strength, and when described current sunlight strength is less than described default sunlight strength, the outer temperature signal value of the current vehicle utilizing described auxiliary temperature pick-up unit to detect upgrades the outer temperature signal value of car, otherwise, when the outer temperature signal value of current vehicle judging that described temperature-detecting device detects is less than temperature signal value outside described car, the outer temperature signal value of the current vehicle utilizing described temperature-detecting device to detect upgrades the outer temperature signal value of described car.
7. system according to claim 6, it is characterized in that, described processor also for: when the engine of vehicle runs and engine water temperature is not more than described default water temperature, the outer temperature signal value of the current vehicle utilizing described temperature-detecting device to detect upgrades the outer temperature signal value of described car.
8. system according to claim 6; it is characterized in that; described processor also for: vehicle engine shut down after; the stop time of more described engine and default stop time; and when being greater than default stop time, the outer temperature signal value of the current vehicle utilizing described temperature-detecting device to detect upgrades the outer temperature signal value of described car stop time of described engine.
9. system according to claim 8; it is characterized in that; described processor also for: when being not more than default stop time stop time of described engine; judge whether the outer temperature signal value of current vehicle that described temperature-detecting device detects is less than the outer temperature signal value of described car; and when the outer temperature signal value of the current vehicle that described temperature-detecting device detects is less than temperature signal value outside described car, the outer temperature signal value of the current vehicle utilizing described temperature-detecting device to detect upgrades the outer temperature signal value of described car.
10. the system according to any one of claim 6-9, it is characterized in that, described processor is instrument, described engine water temperature is supplied to described instrument by the engine management system of described vehicle, and the sunlight strength that described sunlight strength pick-up unit detects is sent to described instrument by the air-conditioner controller of vehicle.
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