CN104760575B - Energy-saving exterior mirror heating method - Google Patents
Energy-saving exterior mirror heating method Download PDFInfo
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- CN104760575B CN104760575B CN201510220802.8A CN201510220802A CN104760575B CN 104760575 B CN104760575 B CN 104760575B CN 201510220802 A CN201510220802 A CN 201510220802A CN 104760575 B CN104760575 B CN 104760575B
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- heating
- dutycycle
- exterior mirror
- driving voltage
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/56—Cleaning windscreens, windows or optical devices specially adapted for cleaning other parts or devices than front windows or windscreens
- B60S1/60—Cleaning windscreens, windows or optical devices specially adapted for cleaning other parts or devices than front windows or windscreens for signalling devices, e.g. reflectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/02—Rear-view mirror arrangements
- B60R1/06—Rear-view mirror arrangements mounted on vehicle exterior
- B60R1/0602—Rear-view mirror arrangements mounted on vehicle exterior comprising means for cleaning or deicing
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/84—Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multimedia (AREA)
- Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention provides an energy-saving exterior mirror heating method. The method comprises three heating stages. At the first stage, heating is finished according to the heating time and the driving voltage of a first duty ratio, wherein the heating time and the first duty ratio are obtained through calculation. At the second heating stage, heating is finished according to the driving voltage of a second duty ratio and preset heating time, wherein the second duty ratio is obtained through calculation. At the third heating stage, a third duty ratio obtained through calculation and a preset fourth duty ratio are compared and judged, and whether heating is finished based on the driving voltage of the third duty ratio and another preset heating time or based on the driving voltage of the fourth duty ratio and another preset heating time according to the judgment result. According to the energy-saving exterior mirror heating method, heating of an exterior mirror is adjusted in good time according to the exterior environment and the change of related factors, so that more energy can be saved during heating of the exterior mirror, and heating of the exterior mirror can be more environmentally friendly and intelligent.
Description
Technical field
The present invention relates to vehicle electric field, more particularly to a kind of method of exterior mirror heating and energy saving.
Background technology
As consumer increasingly improves to vehicle safety, environmentally friendly and intelligentized requirement, main engine plants are to meet people to car
Diversity requirement, progressively increase numerous electronic apparatus configuration features on vehicle, and corresponding for these functional developments
Electronic control system and electric appliance load.More electricity is consumed when Car Electronic Control system operation, it would be possible to cause accumulator
Quantity of electric charge decrement, while affecting the normal function of vehicle.
At present, outside rear-view mirror for vehicle heating is the heating by driver and crew after vehicle launch, on operating air conditioner panel
Button is controlling.The mirror heater switching signal for collecting is passed through controller local area network by air-conditioner controller
(Controller Area Network, abbreviation CAN) bus is sent to car body control module (Body Controller
Module, abbreviation BCM), driven relay to realize mirror heater function by car body controller.Consider energy-conserving and environment-protective, vehicle body
Controller software inside generally adopts an intervalometer, when timing is arrived, closes mirror heater and drives.In this timing cycle
It is interior, due to the heating for carrying out rearview mirror always, still waste mass energy.
The content of the invention
Embodiment of the present invention technical problem to be solved is, there is provided a kind of method of exterior mirror heating and energy saving,
In exterior mirror heating process, the purpose of further energy saving can be reached.
In order to solve above-mentioned technical problem, the present invention is adopted the following technical scheme that：
A kind of method of exterior mirror heating and energy saving is embodiments provided, including：
After heater switch unlatching is detected, ambient temperature value is gathered；
According to the ambient temperature value, the heat time heating time of first stage is calculated, according to calculated heat time heating time,
With the heating process that the driving voltage of the first dutycycle performs the first stage to exterior mirror；
After heating process in the first stage terminates, according to a predetermined driving voltage dutycycle computing formula, the is calculated
Second dutycycle of the driving voltage of two-stage, and exterior mirror is heated with the driving voltage of second dutycycle,
Perform the heating process of the second stage of the first predetermined scheduled duration；
After the heating process of second stage terminates, according to the predetermined driving voltage dutycycle computing formula, calculate
3rd dutycycle of the driving voltage of phase III, judges the size of the 3rd dutycycle and the 4th predetermined dutycycle；
When the 3rd dutycycle is less than four dutycycle, car is heated with the driving voltage of the 3rd dutycycle
Outside rear-view mirror, performs the heating process of the phase III of the second predetermined scheduled duration；
When the 3rd dutycycle is more than or equal to four dutycycle, with the driving voltage of the 4th dutycycle
Heating exterior mirror, performs the heating process of the phase III of the second predetermined scheduled duration.
Further, after the heating process in the phase III terminates, methods described also includes：
After the mirror heater switch closing is detected, stop heating exterior mirror.
Further, it is described according to the ambient temperature value, calculate the calculation of the heat time heating time of first stage
For：
t1=TRT+CFt1×(TRT-T)s
Wherein, t1For the heat time heating time of first stage, unit：Second；TRTTake by degree Celsius in units of Indoor Temperature angle value, be
One fixed numbers；CFt1It is a predetermined constant for temperature correction coefficient；T take by degree Celsius in units of ambient temperature value,
Wherein, T<TRT。
Further, in the heating process of second stage and phase III, the predetermined driving voltage dutycycle meter
Calculating formula is：
P=(TRT-T)×(0.5+CFv1× V) × 100%
P is the dutycycle of heat driven voltage；TRTTake by degree Celsius in units of Indoor Temperature angle value, be a fixed value；T takes
By degree Celsius in units of ambient temperature value, wherein, T<TRT；CFv1It is a predetermined constant for speed correction factor；V takes
Current vehicle speed value in units of thousand ms/hour.
Further, methods described also includes：Collection current vehicle speed value, according to the current vehicle speed value and described predetermined
Driving voltage dutycycle computing formula, calculates second dutycycle and the 3rd dutycycle.
Further, methods described also includes：Collection battery tension value, if the battery tension value for collecting is low
In predetermined magnitude of voltage, then forbid carrying out exterior mirror heating.
Further, methods described also includes：Whether detection electromotor runs, if electromotor off-duty, forbids carrying out
Exterior mirror is heated.
Further, after the collection ambient temperature value, methods described also includes：
Judge the size of the ambient temperature value and predetermined temperature value；
When the ambient temperature value is less than the predetermined temperature value, according to the ambient temperature value, meter
Calculate the heat time heating time of first stage；
When the ambient temperature value is more than or equal to the predetermined temperature value, with the driving electricity of the 5th dutycycle
Pressure heating exterior mirror, performs the whole heating process of the 3rd predetermined scheduled duration.
The invention has the beneficial effects as follows：The method of exterior mirror heating and energy saving provided in an embodiment of the present invention includes three
Heating period, wherein, in the first heating period, according to calculated heat time heating time and the driving voltage of the first dutycycle
Complete the heating process of first stage；In the second heating period, according to the driving voltage of calculated second dutycycle and
One predetermined heat time heating time completed heating process；In the 3rd heating period, compare calculated 3rd dutycycle and make a reservation for
The 4th dutycycle size, determine it is with when the driving voltage of the 3rd dutycycle and another predetermined heating according to comparative result
Between complete heating process and still heating process completed with the driving voltage of the 4th dutycycle and another predetermined heat time heating time.The car
The method of outside rear-view mirror heating and energy saving according to the change of exterior mirror ambient temperature and correlative factor, it is in good time outer to car after
The heating of visor is adjusted, and makes the heating more energy-conserving and environment-protective of exterior mirror, more intelligent.
Description of the drawings
Fig. 1 represents one of schematic flow sheet of method of exterior mirror heating and energy saving provided in an embodiment of the present invention；
Fig. 2 represents the two of the schematic flow sheet of the method for exterior mirror heating and energy saving provided in an embodiment of the present invention；
Fig. 3 represents the theory diagram of exterior mirror heating system provided in an embodiment of the present invention；
Fig. 4 represents that a kind of flow process of the method example of exterior mirror heating and energy saving provided in an embodiment of the present invention is illustrated
Figure.
Specific embodiment
The exemplary embodiment of the present invention is more fully described below with reference to accompanying drawings.Although showing the present invention in accompanying drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the present invention and should not be by embodiments set forth here
Limited.On the contrary, there is provided these embodiments are able to be best understood from the present invention, and can be by the scope of the present invention
Complete conveys to those skilled in the art.
A kind of method of exterior mirror heating and energy saving is embodiments provided, as shown in figure 1, methods described bag
Include：
S101, detect heater switch open after, gather ambient temperature value.
S102, according to the ambient temperature value, the heat time heating time of first stage is calculated, according to calculated heating
Time, with the heating process that the driving voltage of the first dutycycle performs the first stage to exterior mirror.
After S103, heating process in the first stage terminate, according to a predetermined driving voltage dutycycle computing formula, meter
The second dutycycle of the driving voltage of second stage is calculated, and with the outer backsight of driving voltage heating car of second dutycycle
Mirror, performs the heating process of the second stage of the first predetermined scheduled duration.
S104, after the heating process of second stage terminates, according to the predetermined driving voltage dutycycle computing formula,
The 3rd dutycycle of the driving voltage of phase III is calculated, judges that the 3rd dutycycle is big with the 4th predetermined dutycycle
It is little.
S105, the 3rd dutycycle be less than four dutycycle when, with the driving voltage of the 3rd dutycycle
Heating exterior mirror, performs the heating process of the phase III of the second predetermined scheduled duration.
S106, the 3rd dutycycle be more than or equal to four dutycycle when, with the drive of the 4th dutycycle
Galvanic electricity pressure heating exterior mirror, performs the heating process of the phase III of the second predetermined scheduled duration.
The method of exterior mirror heating and energy saving provided in an embodiment of the present invention includes the heating process of three phases, can
According to the change and the change of other correlative factors of rearview mirror ambient temperature, the heating to exterior mirror in good time is adjusted
It is whole, when rearview mirror ambient temperature is relatively low, increase dutycycle of the driving voltage within an output cycle, in rearview mirror week
Enclose ambient temperature it is higher when, reduce dutycycle of the driving voltage within an output cycle；In the starting stage of heating, control is driven
The dutycycle of galvanic electricity pressure be in a higher value, when heating draws to an end, control driving voltage dutycycle in one compared with
Little value, so as to reach the reasonable employment energy, the purpose of energy saving also makes the heating of exterior mirror more intelligent.
For a further understanding of the method for exterior mirror heating and energy saving provided in an embodiment of the present invention, hereafter will be to above-mentioned
In each step be described respectively.
S101, detect heater switch open after, gather ambient temperature value.
Wherein, as shown in Fig. 2 the detection of heater switch signal and the collection of ambient temperature are by automatic air conditioning controller
Complete, and car body control module is sent to by controller area network bus, it is defeated by car body control module driving power chip
Go out power to the outer left and right mirror heater of car.Car body control module for exterior mirror heating function main control unit, Neng Goushi
The logical algorithm of existing intelligent heating function, and driving power chip carries out exterior mirror heating.
S102, according to the ambient temperature value, the heat time heating time of first stage is calculated, according to calculated heating
Time, with the heating process that the driving voltage of the first dutycycle performs the first stage to exterior mirror.
In heating process in the first stage, heat time heating time is that car body control module is calculated according to a predetermined computing formula
Obtain, the computing formula is：
t1=TRT+CFt1×(TRT-T)s
Wherein, t1For the heat time heating time of first stage, unit：Second (s)；TRTTake by degree Celsius in units of indoor temperature
Value, is a fixed numbers, general TRT=23；CFt1It is a predetermined constant for temperature correction coefficient, is typically based on actual calibration value
It is designed, according to country variant and area, CFt1Generally may be selected 4,6,8,10；T take by degree Celsius in units of external environment condition
Temperature value, wherein, T≤TRT。
Wherein, after ambient temperature value is collected, as shown in figure 3, methods described also includes：
S301, the size for judging the ambient temperature value and predetermined temperature value for collecting, the predetermined temperature value
As Indoor Temperature angle value.
S302, when the ambient temperature value is less than the predetermined temperature value, according to the ambient temperature
Value, calculates the heat time heating time of first stage.
S303, when the ambient temperature value is more than or equal to the predetermined temperature value, with the 5th dutycycle
Driving voltage heats exterior mirror, performs the whole heating process of the 3rd predetermined scheduled duration.
Such as, when ambient temperature value is more than 23 DEG C, car body control module can determine that driving voltage plus thermal output
Total time be 20 seconds, and the dutycycle of driving voltage also dependent on actual demand setting.
After S103, heating process in the first stage terminate, according to a predetermined driving voltage dutycycle computing formula, meter
The second dutycycle of the driving voltage of second stage is calculated, and with the outer backsight of driving voltage heating car of second dutycycle
Mirror, performs the heating process of the second stage of the first predetermined scheduled duration.
After heating process in the first stage terminates, car body control module can be according to a predetermined driving voltage dutycycle meter
Formula is calculated, the dutycycle of the driving voltage of second stage is calculated, and it is predetermined with the driving voltage of calculated dutycycle and one
Heating duration perform second stage heating process, the heat time heating time of second stage typically takes 10 minutes, also dependent on reality
Need setting.If calculated dutycycle is more than 100%, carry out according to 100% driving voltage plus thermal output.Wherein,
The predetermined driving voltage dutycycle computing formula is：
P=(TRT-T)×(0.5+CFv1× V) × 100%
P is the dutycycle of heat driven voltage；TRTTake by degree Celsius in units of Indoor Temperature angle value, be a fixed value, one
As TRT=23；T take by degree Celsius in units of ambient temperature value, wherein, T<TRT；CFv1It is one for speed correction factor
Predetermined constant, is typically based on actual calibration value and is designed, and generally may be selected 0.02,0.04,0.06；V is taken with thousand ms/hour as single
The current vehicle speed value of position.To obtain current vehicle speed value, methods described also includes：
Collection current vehicle speed value, according to the current vehicle speed value and the predetermined driving voltage dutycycle computing formula,
The dutycycle of the driving voltage needed for calculating.
S104～S106, after the heating process of second stage terminates, according to the predetermined driving voltage dutycycle meter
Formula is calculated, the 3rd dutycycle of the driving voltage of phase III is calculated, the 3rd dutycycle and the 4th predetermined duty is judged
The size of ratio；When the 3rd dutycycle is less than four dutycycle, heated with the driving voltage of the 3rd dutycycle
Exterior mirror, performs the heating process of the phase III of the second predetermined scheduled duration；The 3rd dutycycle be more than or
During equal to four dutycycle, exterior mirror is heated with the driving voltage of the 4th dutycycle, perform predetermined second
The heating process of the phase III of scheduled duration.
After the heating process of second stage terminates, car body control module can be calculated according to predetermined driving voltage dutycycle
Formula calculates the dutycycle of the driving voltage of phase III, and judges the big of the calculated dutycycle dutycycle predetermined with
It is little, if calculated dutycycle is less than predetermined dutycycle, heated with the driving voltage of calculated dutycycle
Output, if calculated dutycycle is more than or equal to predetermined dutycycle, carries out adding with the driving voltage of predetermined duty cycle
Thermal output.And the heat time heating time of phase III is the predetermined heat time, can be set according to the actual requirements.
Further, after the heating process of phase III terminates, methods described also includes：Detecting the rearview mirror
After heater switch is closed, stop heating exterior mirror.After automatic air conditioning controller detects heater switch shutdown signal,
And car body control module is sent to by CAN, car body control module can stop driving power chip output, so as to tie
Heating of the beam to exterior mirror.
In addition, if car body control module does not receive the temperature value and current vehicle of external environment condition within one section of continuous time
Speed value, car body control module can determine whether to enter heat spent pattern, and defeated according to the driving voltage heating of a predetermined dutycycle
Go out one section of predetermined heat time heating time, such as add thermal output 10 minutes according to the driving voltage of 50% dutycycle, concrete numerical value
Selection can be set according to actual needs.Car body control module does not receive the temperature of external environment condition within one section of continuous time
The reason for value and current vehicle speed value, is possibly due to heating system and there occurs failure, or car body control module have received wrong letter
Number etc..
In embodiments of the present invention, car body control module can be every a scheduled time again according to the dutycycle of driving voltage
Computing formula calculates and updates the dutycycle of driving voltage, therefore, in the heating process of second stage and phase III, calculate
The dutycycle for obtaining is not unalterable, in the heating process in a stage, it is understood that there may be multiple dutycycles, so as to and
When the heating of exterior mirror is adjusted, reach the purpose of energy-conservation.
In addition, in whole heating process, in addition it is also necessary to which whether the detection transmitter of timing is in running status, if sending out
Motivation off-duty, then forbid carrying out exterior mirror heating.
When the electricity in accumulator is relatively low, it is likely that generation cannot start breakdown in the motor, be now not appropriate for into
Driving outside rear-view mirror heating, therefore in order to pay close attention to accumulator in electricity whether support heating process enough, methods described is also
Including：Collection battery tension value, if the battery tension value for collecting is less than predetermined magnitude of voltage, after forbidding into outside driving
Mirror heating.Such as when battery tension is less than 10V, then forbid carrying out the heating of exterior mirror.As shown in Fig. 2 current
Vehicle speed value, electromotor run signal and battery tension value can be gathered by engine management unit, and be sent by CAN
To car body control module.
As shown in figure 4, for a kind of flow process of the method example of exterior mirror heating and energy saving provided in an embodiment of the present invention
Schematic diagram, by this example, the method for further understanding exterior mirror heating and energy saving provided in an embodiment of the present invention.Show at this
In example, car body control module can judge whether electromotor runs first, if electromotor off-duty, forbid carrying out exterior mirror
Heating.If detecting electromotor in running status, then detect whether heater switch opens, after heater switch is opened, adopt
Collection ambient temperature, and judge the size of 23 DEG C of ambient temperature and predetermined value, if ambient temperature is more than or equal to
23 DEG C, then start 20 seconds intervalometers, exterior mirror is carried out 20 seconds plus thermal output, the dutycycle of driving voltage now can
50% is set to, is set accordingly also dependent on demand；If ambient temperature is less than 23 DEG C, into the first stage
Heating process, after determining that the heating process of first stage terminates, into the heating process of second stage, the like, so as to complete
Into whole heating process, typically in the 3rd heating phase process, the heating of exterior mirror is basically completed, therefore, drive electricity
The dutycycle general control of pressure can so reduce the waste of the energy 10% or so.
The method of exterior mirror heating and energy saving provided in an embodiment of the present invention, is not one in whole heating process
It is straight persistently to carry out plus thermal output, but according to the change of exterior mirror ambient temperature, according to the actual requirements, adjustment drives
The dutycycle of voltage, makes whole heating process more energy saving, more intelligent.
Above-described is the preferred embodiment of the present invention, it should be pointed out that for the ordinary person of the art comes
Say, some improvements and modifications can also be made under the premise of without departing from principle of the present invention, and these improvements and modifications also exist
In protection scope of the present invention.
Claims (7)
1. a kind of method of exterior mirror heating and energy saving, it is characterised in that methods described includes：
After heater switch unlatching is detected, ambient temperature value is gathered；
According to the ambient temperature value, the heat time heating time of first stage is calculated, according to calculated heat time heating time, with the
The driving voltage of one dutycycle performs the heating process of first stage to exterior mirror；
Wherein, the calculation of the heat time heating time of calculating first stage is：
t1=TRT+CFt1×(TRT-T)s
Wherein, t1For the heat time heating time of first stage, unit：Second；TRTTake by degree Celsius in units of Indoor Temperature angle value, be one consolidate
Fixed number value；CFt1It is a predetermined constant for temperature correction coefficient；T take by degree Celsius in units of ambient temperature value, wherein,
T<TRT；
After heating process in the first stage terminates, according to a predetermined driving voltage dutycycle computing formula, second-order is calculated
Second dutycycle of the driving voltage of section, and exterior mirror is heated with the driving voltage of second dutycycle, perform
The heating process of the second stage of the first predetermined scheduled duration；
After the heating process of second stage terminates, according to the predetermined driving voltage dutycycle computing formula, the 3rd is calculated
3rd dutycycle of the driving voltage in stage, judges the size of the 3rd dutycycle and the 4th predetermined dutycycle；
When the 3rd dutycycle is less than four dutycycle, after outside the driving voltage heating car of the 3rd dutycycle
Visor, performs the heating process of the phase III of the second predetermined scheduled duration；
When the 3rd dutycycle is more than or equal to four dutycycle, heated with the driving voltage of the 4th dutycycle
Exterior mirror, performs the heating process of the phase III of the second predetermined scheduled duration.
2. the method for exterior mirror heating and energy saving as claimed in claim 1, it is characterised in that the phase III plus
After thermal process terminates, methods described also includes：
After the mirror heater switch closing is detected, stop heating exterior mirror.
3. the method for exterior mirror heating and energy saving as claimed in claim 1, it is characterised in that in second stage and the 3rd rank
In the heating process of section, the predetermined driving voltage dutycycle computing formula is：
P=(TRT-T)×(0.5+CFv1× V) × 100%
P is the dutycycle of heat driven voltage；TRTTake by degree Celsius in units of Indoor Temperature angle value, be a fixed value；T takes to take the photograph
Family name's degree is the ambient temperature value of unit, wherein, T<TRT；CFv1It is a predetermined constant for speed correction factor；V is taken with thousand
M/hour for unit current vehicle speed value.
4. the method for exterior mirror heating and energy saving as claimed in claim 3, it is characterised in that also include：
Collection current vehicle speed value, according to the current vehicle speed value and the predetermined driving voltage dutycycle computing formula, calculates
Go out second dutycycle and the 3rd dutycycle.
5. the method for exterior mirror heating and energy saving as claimed in claim 1, it is characterised in that methods described also includes：
Collection battery tension value, if the battery tension value for collecting is less than predetermined magnitude of voltage, forbids into driving
Outside rear-view mirror is heated.
6. the method for exterior mirror heating and energy saving as claimed in claim 1, it is characterised in that methods described also includes：
Whether detection electromotor runs, if electromotor off-duty, forbids carrying out exterior mirror heating.
7. the method for exterior mirror heating and energy saving as claimed in claim 1, it is characterised in that in the collection external environment condition
After temperature value, methods described also includes：
Judge the size of the ambient temperature value and predetermined temperature value；
When the ambient temperature value is less than the predetermined temperature value, according to the ambient temperature value, the is calculated
The heat time heating time in one stage；
When the ambient temperature value is more than or equal to the predetermined temperature value, added with the driving voltage of the 5th dutycycle
Hot exterior mirror, performs the whole heating process of the 3rd predetermined scheduled duration.
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| CN201510220802.8A CN104760575B (en) | 2015-05-04 | 2015-05-04 | Energy-saving exterior mirror heating method |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6904242B2 (en) * | 2017-12-27 | 2021-07-14 | トヨタ自動車株式会社 | Vehicle photography equipment and heating equipment |
| CN108524086A (en) * | 2018-04-11 | 2018-09-14 | 深圳可思美科技有限公司 | Facial cosmetic refrigeration system, method and apparatus |
| CN108556744A (en) * | 2018-04-11 | 2018-09-21 | 北京车和家信息技术有限公司 | Control method, control system and the vehicle of mirror heater device |
| CN114650626B (en) * | 2022-03-17 | 2023-07-14 | 东集技术股份有限公司 | Heating system and method for wharf lens and code scanning equipment |
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|---|---|---|---|---|
| JP2006151285A (en) * | 2004-11-30 | 2006-06-15 | Yazaki Corp | Heating-coil heater control device for vehicle |
| CN101129092A (en) * | 2005-02-24 | 2008-02-20 | 埃克阿泰克有限责任公司 | Pulse width modulated defroster |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8344288B2 (en) * | 2010-01-12 | 2013-01-01 | Gentex Corporation | Heaters for automotive mirrors and rearview assemblies using the same |
| US9808375B2 (en) * | 2012-02-16 | 2017-11-07 | Abominable Labs, Llc | Power-saving method for defogging an eye-shield |
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- 2015-05-04 CN CN201510220802.8A patent/CN104760575B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006151285A (en) * | 2004-11-30 | 2006-06-15 | Yazaki Corp | Heating-coil heater control device for vehicle |
| CN101129092A (en) * | 2005-02-24 | 2008-02-20 | 埃克阿泰克有限责任公司 | Pulse width modulated defroster |
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