Car window defogger

Abstract

A vehicle window defogger (106) includes one or more primary defogger coils (102) in a predetermined pattern, design or other presentation and a secondary defogger coil (104) covering the remainder of the vehicle window. The primary defogger coil (102) heats to a specified temperature faster than the secondary defogger coil (104) to provide faster defog and indicate operation of the defogger (106).

Description

Technical Field

[0001] The present disclosure generally relates to an automobile window glass provided with a defogger, and more particularly to an automobile window glass that uses a concentrated defogger coil for fast and effective defog. Background Art

[0002] The Background Description includes information that may be useful for understanding the present disclosure. It is not an admission that any of the information provided herein is prior art or relevant to the presently claimed disclosure, or that any publication explicitly or implicitly referenced is prior art.

[0003] A defogger or defroster is a system used to clear condensation and frost from automobile window glass (such as the windshield, rear glass or side windows) and provide the best possible visibility around the motor vehicle for the convenience of the driver and passengers. The defogger is a series of resistive conductors connected in parallel or in series on the glass. When power is applied, the conductors heat up, melting the ice on the glass and evaporating the condensation on it. These conductors can be made of a silver-ceramic material printed and fired onto the inner surface of the glass, or they can be a series of very fine wires on the glass. A switch is provided on the dashboard, and pressing the switch can turn on the defogger. Power is supplied to the defogger through physical wires that draw power from the car battery. The defogger can be operated manually or automatically.

[0004] The defogger conductor wires are quite sensitive to physical damage. Sometimes cleaning the car windows can also damage the defogger. Such damage can sweep away metal from the conductor wires and interrupt the circuit, which in turn prevents power from being transmitted to all areas of the window glass and causes power to be transmitted to only a portion of the defogger. Due to this physical damage, over time, part of the defogger is powered while another part is disconnected from the main circuit, which is why defoggering often fails in some parts of the windshield. This results in inefficient defoggering of the car windows.

[0005] Typically, the easiest way to check defogger function is through a switch that lights up when the defogger is turned on, indicating that power is being supplied to the defogger coil. Another conventional way is to manually check the defogger by touch and feel by a passenger or driver, or by waiting until the ice or fog disappears. However, these conventional inspection methods do not work when the defogger is damaged due to a conductor wire break. Sometimes, visual inspection is used to detect obvious breaks in the defogger conductor wire.

[0006] In addition to the above, a system can be used that can more scientifically check for breaks in the defogger conductor wire. Typically, in order to easily check for breaks in the defogger conductor wire, a test kit can be used. The test kit includes a test light with two terminals. Once the exact break point is found using such a test kit, the defogger conductor wire can be properly repaired.

[0007] Indian Patent Application No. IN3185 / MUM / 2014 discloses a similar test device for checking the working of a defogger. The device comprises an "L" shaped configuration having a positive terminal, a negative terminal and an indicator bulb. The positive terminal of the defogger check device is connected to the positive terminal near the connector on the right side of the windshield and the negative terminal of the defogger check device is connected to any coil on the left side of the windshield. Whenever the bulb lights up, this indicates that the defogger coil is functioning properly, however whenever the bulb does not light up, this indicates that there is a defect in the circuit of the defogger coil.

[0008] Although these methods exist for testing the continuity of the defogger coil, these methods have many disadvantages. First, these methods are time-consuming and cannot be performed quickly without human intervention. Second, the defogger inspection process requires a special workspace and time to be able to check the operation of the defogger. Finally, the equipment used for defogger inspection requires additional expenses.

[0009] Therefore, a defogger inspection mechanism that can overcome all the above-mentioned shortcomings is needed.

[0010] The present disclosure is intended to provide a quick and effective detection of the operation of the defogger coil by naked eyes. In addition, the present disclosure provides a detection of the operation of the defogger coil in a minimum time. Some other advantages are that the occupants can confidently and easily check whether the defogger coil is working.

[0011] The present disclosure provides a test mechanism integrated into the defogger coil, thereby eliminating the need for any separate equipment or workspace for testing. The occupant can test the operation of the defogger coil within a few minutes of turning on the defogger. In this case, it is desirable to first defrost a small area of ​​the vehicle window glass in order to provide a visual indication of the operation of the defogger coil. Summary of the invention

[0012] One aspect of the present disclosure provides an automotive window defogger, which includes one or more primary defogger coils in a predetermined pattern, design or other presentation and a secondary defogger coil covering the remainder of the automotive window glass. The primary defogger coil heats to a specified temperature faster than the secondary defogger coil to provide faster defog and indicate the operation of the defogger.

[0013] An object of the present disclosure is to provide a vehicle window glass indicating the operation of a defogger.

[0014] Another object of the present disclosure is to simplify the working of the defogger, thereby helping to identify the working of the defogger effortlessly.

[0015] Yet another object of the present disclosure is to provide an integrated defogger operation detection mechanism in an automotive window glass that is effective and easy to use from the perspective of the driver and passengers.

[0016] Yet another object of the present disclosure is to avoid manual inspection of defoggers for automotive window glasses by touch and feel methods by hand.

[0017] Yet another object of the present disclosure is to provide a method for checking the working status of a demister.

[0018] Other features and aspects of the present disclosure will be apparent from the following description and accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The embodiments are shown by way of example and not limitation in the accompanying drawings.

[0020] Figure 1 An automotive window glass having two heating zones including a rapid heating zone according to an embodiment of the present disclosure is shown;

[0021] Figure 2 An automotive window glass having multiple rapid heating zones according to an embodiment of the present disclosure is shown;

[0022] Figure 3 An automotive window glass having a rapid heating area disposed in a busbar according to an embodiment of the present disclosure is shown;

[0023] Figure 4 An automotive window glass having a rapid heating region disposed in a busbar behind a ceramic masking region according to an embodiment of the present disclosure is shown;

[0024] Figure 5 An automotive window glass having a rapid heating area disposed near a wiper blade according to an embodiment of the present disclosure is shown;

[0025] Figure 6 An automotive window glass having a rapid heating area disposed near a camera according to an embodiment of the present disclosure is shown;

[0026] Figure 7 shows an infrared image of a car window glass having two heating zones according to an embodiment of the present disclosure;

[0027] Figure 8 A time-temperature graph showing two heating zones of a vehicle window pane according to an embodiment of the present disclosure;

[0028] Fig. 9 A flow chart showing a method for indicating the operation of a defogger of a vehicle window glass according to an embodiment of the present disclosure;

[0029] Fig.10 A flow chart for identifying a fault type in a defogger of a vehicle window glass according to an embodiment of the present disclosure is shown;

[0030] Fig.11 A block diagram of a vehicle window defogger system according to an embodiment of the present disclosure is shown;

[0031] Fig.11 A flow chart illustrating a sequence of operations performed by an automotive window defogger system according to an embodiment of the present disclosure is shown;

[0032] The skilled person will appreciate that the elements in the drawings are shown for simplicity and clarity and are not necessarily drawn to scale. For example, the size of some elements in the drawings may be enlarged relative to other elements to help enhance understanding of the embodiments of the present disclosure. DETAILED DESCRIPTION

[0033] The present disclosure will now be discussed in more detail with reference to the accompanying drawings which accompany the present application. In the accompanying drawings, similar and / or corresponding elements are denoted by similar reference numerals.

[0034] Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.

[0035] definition

[0036] For convenience, the meanings of certain terms and phrases used in this disclosure are provided below. If there is an apparent discrepancy between the usage of a term in other parts of this specification and the definition provided in this section, the definition in this section shall prevail.

[0037] Defogger - A defogger is a system that removes condensation and melts frost from a car's windshield, rear glass, or side windows. A defogger consists of a busbar, a defogger coil, and a power source. A defogger is used to remove mist as well as defrost or ice. In this disclosure, defogger and automotive window defogger are used interchangeably.

[0038] Defog – Defog is the process of removing fog or moisture from your car’s windows.

[0039] Defrosting - Defrosting is the process of melting the ice that has accumulated on your car's windows.

[0040] Defogger Coil - The defogger coil is a series of parallel linear resistive conductors on the car window glass.

[0041] Primary demister coil - The demister coil with higher resistance and specific power is defined as the primary demister coil. The primary demister coil defines a heating zone Z1.

[0042] Secondary Heating Zone - The defogger coil with lower resistance and specific power is defined as the secondary defogger coil. The secondary defogger coil defines a heating zone Z2.

[0043] Resistance - Resistance is a measure of how difficult it is for an electric current to pass through a conductor. Resistance can be increased by increasing the density of the conductor. The density of a conductor can be increased by increasing its length or thickness.

[0044] Busbars – Busbars are wider conductors found around the periphery of the vehicle’s window glass and are suitable for carrying electrical current to the defogger coil.

[0045] The present disclosure provides an automotive window defogger, which includes one or more primary defogger coils in a predetermined pattern, design or other presentation and a secondary defogger coil covering the remainder of the automotive window glass. The primary defogger coil can be heated to a specified temperature faster than the secondary defogger coil to provide faster defog and indicate the operation of the defogger.

[0046] Figure 1 An automobile window glass 100 is shown, which is provided with a primary defogger coil 102 and a secondary defogger coil 104 having two different resistances, respectively. The primary defogger coil 102 and the secondary defogger coil 104 together constitute the automobile window glass defogger 106 of the present disclosure. The primary defogger coil 102 is arranged to be in a predetermined pattern, design or other form of expression. The primary defogger coil 102 can be in the shape of any brand logo or any other preferred design. The primary defogger coil 102 arranged to be in a predetermined pattern, design or other form of expression further defines a heating zone Z1. Zone Z1 is generally located at one end of the automobile window glass 100. Zone Z1 can be located on the busbar or at a corner of the automobile window glass. The secondary defogger coil 104 defines a heating zone Z2 covering the rest of the automobile window glass 100. Zone Z1 is heated to a specified temperature faster than zone Z2, whereby zone Z1 defogs much faster than zone Z2. Zone Z1 is rapidly defrosted, thereby revealing a design or pattern formed by the primary defogger coil 102 through the rapid defog of zone Z1 , thereby indicating to the occupant that the defogger 106 is operating.

[0047] In one embodiment, the resistance of the primary defogger coil 102 is greater than the resistance of the secondary defogger coil 104. The defog time is reduced by increasing the resistance of the coil. The resistance is increased by increasing the concentration of the coil in a specific area of ​​the automotive window glass 100. In order to increase the concentration of the coil, the length and thickness of the coil should be increased, and the distance between the loops formed by the coil should be reduced. The length and thickness per unit area of ​​the primary defogger coil 102 are greater than the length and thickness per unit area of ​​the secondary defogger coil 104. In conventional automotive window glass, the entire defogger will have the same resistance. In the present disclosure, the defogger 106 has two different resistances. The primary defogger coil 102 with a larger resistance defines an area Z1, and the secondary defogger coil 104 with a smaller resistance defines an area Z2. The resistance of the primary defogger coil 102 is increased by increasing the thickness and length of the coil. Typically, the entire automotive window glass with a defogger used today is typically equipped with a 12 volt-20 amp power system. Similarly, in the present disclosure, zone Z1 will be supplied with 20 amperes of current for primary defogger coils 102 having a larger length and width per unit area, and zone Z2 will be supplied with 20 amperes of current for primary defogger coils 102 having a smaller length and width per unit area. In summary, since the resistance of the primary defogger coil 102 increases compared to the resistance of the secondary defogger coil 104, the primary defogger coil 102 heats faster than the secondary defogger coil 104, so that zone Z1 defrosts earlier than zone Z2, thereby restoring visibility in zone Z1. Further, the specific power and heat density of zone Z1 will also be at least 2 times greater than those of zone Z2. The specific power, sometimes referred to as surface power density, is defined as the power provided per unit area. The specific power of the primary defogger coil 102 in zone Z1 is greater than the specific power of the secondary defogger coil 104 in zone Z2. Primary defogger coil 102 secondary defogger coil 104. The automobile window glass 100 having two heating zones Z1 and Z2 is heated by the same heating power, in other words, the power input to both zones Z1 and Z2 is the same, so no change in the power supply is necessary to make zone Z1 defrost faster than zone Z2.

[0048] In one embodiment, the area of ​​the zone Z1 of the automobile window glass 100 is smaller than the area of ​​the zone Z2 . The zone Z2 covers approximately more than half of the total area of ​​the automobile window glass 100 .

[0049] In one embodiment, the primary defogger coil 102 and the secondary defogger coil 104 are generally applied to the surface of the vehicle's automotive window glass 100. In addition, the defogger coils 102, 104 are combined between laminated window glasses, and more specifically, the defogger coils 102, 104 are arranged on the middle layer of the laminated automotive window glass or in the inner face of the glass.

[0050] In one embodiment, the demister 106 can be a printed coil or a physical coil or a coated conductive layer. In one embodiment, silver is usually used to make the demister coils 102, 104 by screen printing technology. Other materials for printing the demister 106 can include metals, conductive polymers, metal grids, carbon nanotubes (CNT) layers, graphene, transparent conductive oxides, conductive oxides, or any conductive materials. In an alternative embodiment, the demister 106 can be made of visible or invisible materials. Screen printing is a printing technique in which a grid is used to transfer ink to a substrate, except for areas where the openings in the grid are blocked with emulsion to make the ink impermeable. A scraper or scraper moves on the screen so that the ink fills the open grid holes, and then a reverse stroke causes the screen to briefly contact the substrate along the contact line. This will wet the substrate with ink, and when the screen rebounds after the scraper has passed, the ink will be pulled out of the grid holes. The amount of silver to be deposited (which determines the width and thickness of the demister 106) is controlled by changing the grid size, the width of the line, and the thickness of the emulsion coating. The width and thickness of the defogger 106 are designed to achieve the desired defrosting performance. The defogger coil is connected to busbars on both sides. Busbars are wider conductors present on the periphery of the automotive window glass 100 and are suitable for transmitting current to the defogger 106. These busbars are also made of printed silver. Power is supplied to the defogger 106 by soldering the connectors to the busbars.

[0051] In an alternative embodiment, a temperature sensitive material or a current sensitive material is placed on the surface of the automotive window glass 100 to provide a visual indication that each individual wire is operating when power is applied to the defogger 106. The temperature indicating material or the current indicating material is a material that can change color when the temperature or current changes. The material has a reversible color characteristic. The temperature indicating material or the current indicating material has a visible color characteristic that is directly dependent on its temperature.

[0052] In one embodiment, the automobile window glass 100 and the primary defogger coil 102 and the secondary defogger coil 104 may also include an antenna for receiving FM radio signals.

[0053] Figure 2 A plurality of rapidly heated zones Z1 are shown on various grids of a defogger 106 of an automotive window glass 100. Zones Z1 on each grid line defrost rapidly, thereby revealing a design or pattern formed by the primary defogger coil 102, thereby indicating to the occupant or driver to confirm that all heated grid lines in the defogger 106 are operating.

[0054] In one embodiment, the temperature of zone Z1 is maintained at a maximum temperature of 70° C. By adjusting the width and length of the demister 106 , a steady-state temperature of 70° C. can be maintained.

[0055] Figure 3 There is shown a rapid heating area Z1 provided on a generatrix of the automobile window glass 100. Sometimes it is difficult to provide the rapid heating area Z1 where the primary defogger coil 102 has an optimum temperature due to the curvature in the automobile window glass 100.

[0056] In an alternative embodiment, the heating zone Z1 may also be Figure 4 The arrangement shown is in a ceramic masking area of ​​a car window glass 100. The area Z1 defined by the primary defogger coil 102 is visible or invisible. The invisibility of the primary defogger coil 102 is achieved by using transparent conductive ink, placing it behind the ceramic masking area, and thin wire plotting.

[0057] Furthermore, in another alternative embodiment, the rapid heating zone Z1 is disposed on the vehicle window glass 100 near a wiper, a camera, or a sensor. Figure 5 A car window 100 is shown with a rapid heating zone Z1 disposed near the wiper blade. In cold weather, the windshield wiper blade may freeze to the car window 100. When attempting to activate the windshield wiper, the motor torque applied by the drive link to swing the wiper may not be sufficient to overcome the force that causes the wiper to adhere to the car window 100. By arranging the primary defogger coil 102 near the wiper blade, rapid heating near the wiper blade and rapid melting of ice or snow are ensured, thereby ensuring easy and rapid movement of the wiper blade.

[0058] In an alternative embodiment, the heating zone Z1 is arranged on the vehicle window 100 near a camera or a sensor. Figure 6 Shown is a car window glass 100 with a fast heating zone Z1 arranged near a camera. The camera or sensor is arranged to help the driver during driving. These cameras and sensors are used to automate, adapt and enhance the vehicle to obtain safety and better driving performance. The fast heating of the primary defogger coil 102 arranged near the camera or sensor ensures fast defog or defrosting above the camera or sensor. Fast defog or defrosting near the camera or sensor will make it more suitable for fast use.

[0059] Fig.11 A block diagram of a vehicle window defogger control system 200 is depicted for a user to turn on or off the defogger 106 of the vehicle window 100. The system 200 generally includes one or more portable devices 204, the vehicle window defogger 106, and a controller 208.

[0060] In one embodiment, the controller 208 communicates with the portable device 204 and the defogger 106. The communication is wireless communication, but is not limited to Wi-Fi, Wi-Gig LTE, cellular, radio, near field communication, or other methods.

[0061] In one embodiment, the portable device 204 can be one of a handheld device, a keyless entry remote control, a computer, a mobile phone, a laptop, a tablet (tab), a smart watch or AR glasses. The portable device 204 can be a remote device. The portable device 204 can be controlled by input given by the user in the form of gestures, movements or voice commands. The portable device 204 has a graphical user interface 212. The graphical user interface 212 is downloaded in the portable device 204. The user triggers the opening or closing of the defogger 106 from the graphical user interface 212. The graphical user interface 212 uses a structured programming language to execute the user's choice of opening or closing the defogger 106 given in the graphical user interface 212 in the form of gestures, movements or voice commands. The graphical user interface 212 communicates the selection provided by the user to the controller 208, and the controller 208 then communicates the input to the defogger 106. The graphical user interface 212 also authenticates the user. Access to the graphical user interface 212 is limited, and the graphical user interface 212 can only be accessed on the basis of the user's successful identity verification. User authentication information is stored in the cloud 210.

[0062] Fig.12 1 is a flow chart illustrating the sequence of operations performed by the automotive window defogger control system 200. Initially, the user starts the graphical user interface 212 from the portable device 204 (step 1201). The graphical user interface 212 authenticates the user (step 1202). The user can choose to turn the defogger 106 on or off by making a selection in the graphical user interface 212 (step 1203). The portable device 204 transmits the selection made by the user to the controller 208 (step 1204). The defogger 106 is turned on or off according to the selection transmitted to the defogger 106 by the controller 208.

[0063] Example

[0064] Example 1

[0065] In order to make the present disclosure easily understood, a specific embodiment of the present disclosure will now be described by way of example. An experiment was conducted to study the temperature variation of zones Z1 and Z2 (the primary defogger coil 102 defines zone Z1, and the secondary defogger coil 104 defines zone Z2) of an automobile window glass 100 set to have the following parameters as shown in Table 1.

[0066] Table 1 shows various parameters of the primary defogger coils 102 and 104.

[0067]

[0068] The car window glass was kept at 23°C and connected to a 12V power supply. Images were taken after a few minutes to see the actual temperature in zone Z1 and zone Z2. Thermal imaging was used to verify the defrosting performance of the entire glass. In addition, the temperature of the car window glass was taken at different intervals to see the actual temperature in zone Z1 and zone Z2.

[0069] Figure 7 An infrared image of a car window 100 is shown, which indicates that zone Z1 reaches a specified temperature compared to zone Z2.

[0070] Figure 8 The time-temperature graph is shown for two heated zones Z1 and Z2 of a vehicle window 100. The entire area around zone Z1 reaches 42°C in 3 minutes, while zone Z2 takes approximately 10 minutes to reach an average temperature of 48°C.

[0071] Industrial Applicability

[0072] Fig. 9 A flow chart of a method for indicating the operation of a defogger 106 in a vehicle window glass 100 of a disclosed vehicle is shown. First, the power to the defogger is turned on by pressing a button provided on the dashboard (step 901). A light on the dashboard will indicate that power is supplied (step 902). Power is supplied to the defogger 106 via a physical wire that draws power from the battery of the car. Visual clearing of the rapid heating area will indicate that the defogger 106 is operating (step 903) or that a separate defogger 106 grille based on the position of the rapid heating area is operating. Visual non-clearance of the rapid heating area will indicate that the defogger 106 is not operating (step 904).

[0073] Optionally, Fig.10 A flow chart for identifying a fault in a defogger 106 using the automotive window glass system of the present disclosure is shown. Each portion of the defogger 106 further includes a primary defogger coil 102 and a secondary defogger coil 104. The primary defogger coil 102 defines a zone Z1, and the secondary defogger coil 104 defines a zone Z2. Power is supplied to the defogger 106 via a physical wire that draws power from the battery of the car (step 1001). A fault in one or more primary defogger coils 102 indicates damage associated with the primary defogger coil 102 in the defogger 106 (step 1003). A fault in all primary defogger coils 102 indicates damage to the power supply (step 1002). Damage to the power supply may be caused by a battery failure or physical wire damage.

[0074] Based on the above basic configuration, the automotive glazing system of the present disclosure may be varied in terms of material, size, structural details and / or functional configuration and / or decorative configuration without departing from the scope of the claimed protection.

[0075] It should be noted that not all activities described above in the general description or examples are required, that a portion of a specific activity may not be required, and that one or more additional activities may be performed in addition to the activities described. Further, the order in which the activities are listed is not necessarily the order in which they are performed.

[0076] Benefits, other advantages, and solutions to problems have been described above with respect to specific embodiments. However, benefits, advantages, solutions to problems, and any features that may make any benefit, advantage, or solution or make it more apparent should not be construed as key, required, or essential features of any or all claims.

[0077] The description and illustration of the embodiments described herein are intended to provide a general understanding of the structure of each embodiment. The description and illustration are not intended to be used as a detailed and comprehensive description of all elements and features of the equipment and system using the structure or method described herein. Certain features described in the context of separate embodiments for clarity herein may also be provided in combination in a single embodiment. On the contrary, various features described in the context of a single embodiment for the sake of brevity may also be provided separately or in a sub-combination. In addition, references to values ​​expressed in ranges include each value within the range. Only after reading this specification, many other embodiments will be apparent to the technician. Other embodiments may be used and derived from the present disclosure, so that structural replacement, logical replacement or other changes may be performed without departing from the scope of the present disclosure. Therefore, the present disclosure should be considered illustrative rather than restrictive.

[0078] The description in conjunction with the drawings is provided to aid understanding of the teachings disclosed herein, to aid description of the teachings, and should not be construed as limiting the scope or applicability of the teachings. However, other teachings can certainly be used in this application.

[0079] As used herein, the terms "comprises," "includes," "contains," "has," "having," or any other variations thereof are intended to cover a non-exclusive inclusion. For example, a method, article, or apparatus that includes a list of features is not necessarily limited to only those features, but may include other features not expressly listed or inherent to the method, article, or apparatus described above. In addition, unless expressly stated to the contrary, "or" refers to an inclusive or, not an exclusive or. For example, a condition A or B is satisfied by any of the following: A is true (or exists) and B is false (or does not exist), A is false (or does not exist) and B is true (or exists), and both A and B are true (or exist).

[0080] In addition, "a" or "an" is used to describe the elements and components described herein. This is merely for convenience and to give a general sense of the scope of the invention. The description should be understood to include one or at least one, and the singular form of the elements and components also includes the plural form, or vice versa, unless otherwise stated. For example, when a single item is described herein, more than one item can be used in place of the single item. Similarly, where more than one item is described, a single item can replace more than one item.

[0081] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the invention belongs. The materials, methods, and examples are illustrative only and not restrictive. To the extent that certain details about specific materials and processing methods are not described, these details may include conventional methods, which can be found in reference books and other sources within the manufacturing field.

[0082] Although various aspects of the present disclosure have been specifically shown and described with reference to the above embodiments, it will be understood by those skilled in the art that various other embodiments may be contemplated by modifying the disclosed machines, systems, and methods without departing from the spirit and scope of the disclosed content. It should be understood that these embodiments fall within the scope of the present disclosure determined based on the claims and any equivalents thereof.

[0083] Components List

[0084] Name: Car window defogger

[0085] 100 Automobile window glass

[0086] 102 Primary demister coil

[0087] 104 Secondary defogger coil

[0088] 106 Car window defogger / defogger

[0089] 200 Systems

[0090] 204 Portable devices

[0091] 208 Controller

[0092] 210 Cloud

[0093] 212 Graphical User Interface

[0094] 901 Steps

[0095] 902 Steps

[0096] 903 Steps

[0097] 904 Steps

[0098] 1001 Steps

[0099] 1002 Steps

[0100] 1003 Steps

[0101] 1201 Steps

[0102] 1202 Steps

[0103] 1203 Steps

[0104] 1204 Steps

[0105] 1205 Steps

[0106] Z1, Z2 heating area

Claims

1. A vehicle window glass defogger (106), comprising: one or more primary defogger coils (102) in a predetermined pattern, design or other representation; as well as a secondary defogger coil (104) covering the remainder of the vehicle window glass (100); The primary defogger coil (102) heats to a specified temperature faster than the secondary defogger coil (104) to provide faster defog and indicate operation of the defogger (106).

2. The automotive window defogger (106) according to claim 1, wherein: The primary defogger coil (102) is arranged on a busbar area, a wiper blade area, a camera area and a ceramic shielding area.

3. The automotive window defogger (106) according to claim 1, wherein: The primary defogger coil (102) may be visible or invisible.

4. The automotive window defogger (106) according to claim 3, wherein: The invisibility of the primary demister coil (102) is achieved by using transparent conductive ink.

5. The automotive window defogger (106) according to claim 3, wherein: The primary defogger coil (102) is placed behind a ceramic shielded area of ​​the vehicle window glass.

6. The automotive window defogger (106) according to claim 3, wherein: The primary demister coil (102) is made by drawing with thin lines.

7. The automotive window defogger (106) according to claim 1, wherein: The primary defogger coil (102) and the secondary defogger coil (104) are applied on the surface of the vehicle window glass.

8. The automotive window defogger (106) according to claim 1, wherein: The primary defogger coil (102) and the secondary defogger coil (104) may be sandwiched in a laminated automotive window glass.

9. The automotive window defogger (106) according to claim 1, wherein: The specific power of the primary defogger coil (102) is at least twice the specific power of the secondary defogger coil (104).

10. The automotive window defogger (106) according to claim 1, wherein: The resistance of the primary defogger coil (102) is greater than the resistance of the secondary defogger coil (104).

11. A method for identifying a fault in a vehicle window defogger (106) according to claim 1, comprising: Turning on the power of the demister (106); One or more primary defogger coils (102) on the vehicle window glass (100) are observed for rapid clearing or non-clearing of fog.

12. The method for identifying a fault in a vehicle window defogger according to claim 11, wherein: Observation of the primary defogger coil (102) clearing mist quickly indicates that the defogger (106) is operating.

13. The method for identifying a fault in a vehicle window defogger according to claim 11, wherein: Observation that the primary defogger coil (102) is not cleared of mist indicates that the defogger (106) is not functioning.

14. The method for identifying a fault in a vehicle window defogger according to claim 11, wherein: Observation that all of the primary defogger coils (102) are not clear of fog indicates damage to the power supply.

15. The method for identifying a fault in a vehicle window defogger according to claim 11, wherein: Observation of one of the primary defogger coils (102) not being cleared of mist indicates damage in the defogger (106) associated with that particular primary defogger coil (102).

16. A vehicle window glass defogger control system (200), wherein: The system (200) comprises: one or more portable devices (204); The automotive window defogger (106) according to claim 1; and a controller (208) in communication with the portable device (204) and the defogger (106), The portable device (204) is configured to communicate with the defogger (106) via a controller (208), thereby allowing a user to turn the defogger (106) on or off.

17. The automotive window defogger control system (200) according to claim 16, wherein: The portable device (204) is a handheld device, a keyless entry remote, a computer, a mobile phone, a laptop, a tablet, a smart watch or AR glasses.

18. The automotive window defogger control system (200) according to claim 16, wherein: The portable device (204) can be controlled by gestures, movements or voice commands.

19. The automotive window defogger control system (200) according to claim 16, wherein: The portable device (204) has a graphical user interface (212) for a user to trigger the defogger (106) to be turned on or off.

20. The automotive window defogger control system (200) according to claim 19, wherein: The graphical user interface (212) provides identity authentication for the user.

Images