Process for de-icing glass surface of vehicle

Abstract

To provide a process for de-icing a glass surface of a vehicle that is automatically and autonomously executed and does not require a human intervention.SOLUTION: There is provided a process for de-icing a glass surface 20 of a vehicle is disclosed. The vehicle includes a de-icing device 21 which includes a wiper system 210 with at least one device for spraying a liquid Lq. The process includes the steps of: verifying E1 a primary condition C1 according to which the ignition Cc of said vehicle is activated; verifying E2 a secondary condition C2 according to which the exterior temperature t is below a temperature threshold Th1; verifying E3 a tertiary condition C3 according to which a demisting function is activated; and when all of the conditions are fulfilled, then activating E4 the de-icing device in order to start a de-icing cycle Cy, the de-icing cycle comprising the step of spraying the liquid onto the glass surface by the at least one device for spraying.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a process for de-icing the glass surface of a vehicle. In particular, the present invention is applicable to, but not limited to, motor vehicles.

Background Art

[0002] Those skilled in the art are familiar with the process for de-icing the glass surface of a vehicle. The vehicle comprises a de-icing device having at least one tank for containing a de-icing liquid, at least one wiper blade, and a device for spraying the de-icing liquid onto the glass surface. The de-icing process comprises the step of turning on a motor for driving at least one of the wiper blades of the de-icing device so as to spray the de-icing liquid onto the glass surface by starting a de-icing cycle.

[0003] A drawback of the prior art is that the de-icing process requires human intervention. This is because it is the user who manually triggers the de-icing process (either remotely or non-remotely) when necessary. The object of the present invention is to provide a process for de-icing the glass surface of a vehicle that is automatically and autonomously implemented and no longer requires human intervention.

Summary of the Invention

[0004] For this purpose, the present invention is a process for de-icing the glass surface of a vehicle, wherein the vehicle comprises a de-icing device provided with a wiper system having at least one device for spraying a liquid, the de-icing process comprising - a step of verifying a primary condition that the ignition device of the vehicle is on, - a step of verifying a secondary condition that the outside air temperature is below a temperature threshold, - a step of verifying a tertiary condition that the defrosting function is on, - If all the above conditions are met, the step of turning on the de-icing device to start a de-icing cycle, the de-icing cycle comprising the step of spraying the liquid onto the glass surface by at least one spraying device, - The step of performing the de-icing cycle using the de-icing device, We propose a de-icing process characterized by comprising the following features.

[0005] Thus, the process for de-icing the glass surface of a vehicle according to the present invention allows de-icing of the vehicle's glass surface to be automatically initiated when needed, that is, when ice is present on the glass surface and when the vehicle is about to be used.

[0006] In a non-limiting embodiment, the process for de-icing the glass surface of a vehicle may also include one or more additional properties, which are employed individually or in any technically possible combination of the following:

[0007] In a non-limiting embodiment, the temperature threshold is in the range of 3° to 5°C.

[0008] In a non-limiting embodiment, the tertiary condition includes turning on the defrosting function and adjusting it to the maximum level.

[0009] In a non-limiting embodiment, the de-icing cycle includes a step of spraying a de-icing liquid.

[0010] In a non-limiting embodiment, the de-icing cycle includes a step of spraying a heated liquid.

[0011] In a non-limiting embodiment, the de-icing process includes an additional step of verifying a fourth-order condition regarding the presence of a person in the driver's seat of the vehicle.

[0012] In a non-limiting embodiment, the wiper system further comprises at least one wiper blade and at least one hydraulic ramp, wherein the hydraulic ramp forms at least one spray device positioned at the height of the wiper blade.

[0013] In a non-limiting embodiment, the vehicle is equipped with an ignition system start switch, and when the ignition system start switch is in the ignition position of the accessory, the ignition system of the vehicle is turned on.

[0014] In a non-limiting embodiment, the temperature threshold is equal to 4°C.

[0015] In a non-limiting embodiment, the heated liquid is water or windshield cleaning liquid.

[0016] In a non-limiting embodiment, the temperature measuring device comprises one or more temperature sensors, or the temperature measuring device is a weather server.

[0017] A system for de-icing the glass surface of a vehicle is further proposed. The de-icing system comprises a de-icing device equipped with a wiper system having at least one device for spraying a liquid onto the glass surface of the vehicle, The de-icing device is configured to perform a de-icing cycle, the de-icing cycle comprising the step of spraying the liquid onto the glass surface by at least one spraying device, The de-icing system is, - A temperature measuring device configured to measure the ambient temperature, - Electronic control unit, Furthermore, The aforementioned electronic control unit is -Receive primary information regarding the ignition system of the vehicle, -Based on the said primary information, verify the primary condition for the ignition device of the vehicle being on, -Receive secondary information about the outside temperature, - Verify a secondary condition that the outside air temperature is less than a temperature threshold according to the secondary information, - Receive tertiary information regarding a defrosting function, - Verify a tertiary condition that the defrosting function is on according to the tertiary information, - When all the above conditions are satisfied, the de-icing device is configured to be turned on to start a de-icing cycle.

[0018] In a non-limiting embodiment, the electronic control unit - Receives quaternary information regarding a person being in the driver's seat of the vehicle, - Verifies a quaternary condition that a person is in the driver's seat according to the quaternary information. It is further configured as such.

[0019] A computer program product is further proposed. When the computer program product is executed by a computer, it includes instructions for causing the program to implement steps of a de-icing process according to any one of the above features.

[0020] A computer-readable non-volatile memory support is further proposed. When executed by a computer, the non-volatile memory support includes instructions for causing the computer to implement a de-icing process according to any one of the above features.

[0021] The present invention and its various application examples will be better understood by reading the following description and examining the accompanying drawings.

Brief Description of the Drawings

[0022] [Figure 1] FIG. 1 is a flowchart of a process for removing frost from a glass surface of a vehicle in a non-limiting embodiment of the present invention. [Figure 2]Figure 2 is a flowchart of the defrosting process of Figure 1 in a non-limiting embodiment, the defrosting process comprising additional processes. [Figure 3] Figure 3 is a schematic diagram of a de-icing system configured to carry out the de-icing process described in Figures 1 and 2 in a non-limiting embodiment. [Figure 4] Figure 4 is a schematic diagram of a de-icing device of the de-icing system of Figure 3 for the glass surface of a vehicle in a non-limiting embodiment, the de-icing device being turned on by the de-icing process of Figures 1 and 2. [Modes for carrying out the invention]

[0023] Elements that are identical in structure or function but appear in different drawings shall use the same reference numeral unless otherwise specified.

[0024] Process 1 for de-icing the glass surface 20 of a vehicle 2 according to the present invention will be described with reference to Figures 1 to 4 in a non-limiting embodiment. In a non-limiting embodiment, vehicle 2 is an automobile. Automobile means any type of electric vehicle. This embodiment is considered a non-limiting example in the following specification. Therefore, in the following specification, vehicle 2 will be referred to separately as automobile 2. In a non-limiting embodiment, glass surface 20 is the glass surface of the windshield of vehicle 2.

[0025] Automobile 2 is shown in Figure 3.

[0026] As shown in Figure 3, the automobile 2 further comprises a de-icing device 21 configured to de-ice the glass surfaces 20 of the automobile 2. As shown in Figure 3, the automobile 2 further comprises an ignition start switch 22 and accessories 23. As shown in Figure 3, the automobile 2 further comprises a temperature measuring device 24 configured to measure the outside temperature t. In the non-limiting example shown in Figure 3, the device is located at the height of the driver's mirror of the automobile 2. As shown in Figure 3, the automobile 2 further comprises a human-machine interface 25 associated with a de-frosting function fd. In the non-limiting example, the human-machine interface 25 is a rotary knob that not only allows the de-frosting function to be turned on / off but also allows the level of de-frosting to be selected, i.e., allows the de-frosting power to be adjusted. As shown in Figure 3, in a non-limiting embodiment, the automobile 2 further comprises at least one presence sensor 26 located at the height of the driver's seat 27 of the automobile 2. This allows detection of whether a person o is seated in the driver's seat 27, and therefore whether the driver's seat 27 is in use.

[0027] As shown in Figure 4, the de-icing device 21 is - Wiper system 210 and, - Drive motor 212 and, - Conduit system 213, - Tank 214 for the storage of liquid L, Lq, -At least one pump 215, It is equipped with.

[0028] As shown in Figure 4, the wiper system 210 is - A spraying device 2100 having at least one orifice 2100a, wherein liquids L, Lq can be sprayed onto a glass surface 20 through the orifice 2100a, -At least one wiper arm 2101 (also known as a blade), - A drive arm 2102 (also known as an arm) connected to at least one of the wiper blades 2101 via a connecting device (not shown), It is equipped with.

[0029] The wiper system 210 used for de-icing is the same as the one used to wipe water and dirt from the glass surface 20.

[0030] In an illustrated, non-limiting embodiment, the wiper system 210 includes at least one drive arm 2102. The drive arm 2102 is connected to the wiper blade 2101 and performs angular forward and backward movement between a low position PB and a high position PH with respect to the glass surface 20.

[0031] In particular, the drive arm 2102 is arranged on a rod extending along its longitudinal axis, with one end connected to the wiper blade 2101 by a connecting device (not shown), and the other end connected to a means for driving the wiper blade 2101, such as a drive motor 212.

[0032] In a non-limiting embodiment, at least one of the spraying devices 2100 is located on the wiper blade 2101, or at the height of the arm / blade connector, or on the hood of the automobile 2. These various embodiments can also be combined. In one non-limiting embodiment, the spraying device 2100 comprises a plurality of orifices 2100a. Thus, in a non-limiting embodiment, the orifices 2000a are located on the wiper blade 2101, or at the height of the drive arm 2102, or at the height of the arm / blade connector, or on the hood of the automobile 2. The orifices 2100a can be positioned to spray the liquid L, Lq toward the top of the wiper blade 2101, i.e., toward the top of the glass surface 20, or they can be positioned to spray the liquid L, Lq toward the bottom of the wiper blade 2101, i.e., toward the bottom of the glass surface 20.

[0033] In a non-limiting embodiment, each wiper blade 2101 is provided with at least one hydraulic ramp (referred to separately as a ramp) having an orifice 2100a. Through the orifice 2100a, the liquid L, Lq can be sprayed onto the glass surface 20. Thus, the hydraulic ramp forms a spraying device 2100. In a non-limiting modified embodiment, each wiper blade 2101 is provided with two ramps. One ramp has an orifice 2100a configured to spray the liquid L, Lq toward the top of the glass surface 20, and the other ramp has an orifice 2100a configured to spray the liquid L, Lq toward the bottom of the glass surface 20. These ramps can spray the liquid L, Lq simultaneously or alternately depending on the displacement direction of the wiper blade 2101. The liquid L, Lq is supplied to each ramp of the wiper blade 2101 by a conduit system 213.

[0034] The drive motor 212 is configured to drive one or more wiper blades 2101 between their respective low position PB and high position PH via the drive arm 2102.

[0035] The conduit system 213 connects the tank 214 to the orifice 2100a of at least one of the spraying devices 2100.

[0036] In a non-limiting embodiment, tank 214 is a tank separate from the tank containing the windshield cleaning fluid. Each tank is associated with a different pump. In another non-limiting embodiment, tank 214 may be partitioned and have two compartments, one for storing liquid L, Lq and the other for storing the windshield cleaning fluid. Each compartment is associated with a different pump.

[0037] At least one of the pumps 215 is associated with a tank 214 containing liquid L, Lq and is configured to pass the liquid L, Lq through the conduit system 213 until the liquid L, Lq is discharged through an orifice 2100a of at least one of the sprayers 2100 to the glass surface 20, i.e., to the glass surface 20 of the windshield in a hypothetical non-limiting example.

[0038] To apply liquids L and Lq to the glass surface of vehicle 2, de-icing process 1 is described below with reference to Figures 1 and 2 in a non-limiting embodiment. De-icing process 1 is carried out by a de-icing system Sys equipped with an electronic control unit (ECU).

[0039] The electronic control unit (ECU) is configured to verify the following condition C. - Is the ignition system Cc of vehicle 2 turned on? - Whether the ambient temperature t is less than the temperature threshold Th1. - Is the defrost function FD turned on?

[0040] Therefore, in step E1, indicated as F1(ECU, C1(Cc, 22, 23)), the electronic control unit ECU verifies the primary condition C1 that the ignition system of the automobile 2 is turned on.

[0041] The electronic control unit (ECU) verifies the ambient temperature t via ignition system information I1 received from the ignition system start switch 22. Note that when the ignition system start switch 22 is in the ignition position of accessory 23, the ignition system Cc of the vehicle 2 is turned on. Note that when the vehicle's ignition system Cc is on, this means that the vehicle 2 is in use and will soon be driven. The same applies if the driver's seat 27 is in use.

[0042] Therefore, in step E2, denoted as F2(ECU, C2(t, Th1)), the electronic control unit ECU verifies the secondary condition C2 that the ambient temperature t is less than the temperature threshold Th.

[0043] The electronic control unit (ECU) verifies the ambient temperature t via temperature information I2 received from the temperature measuring device 24. In an unrestricted embodiment, the temperature threshold Th1 is between 3° and 5°C. In an unrestricted modified embodiment, the temperature threshold Th1 is equal to 4°. This ambient temperature value t corresponds to a temperature lower than the temperature at which ice typically forms.

[0044] Therefore, in step E3, indicated as F3(ECU, C3(fd)), the electronic control unit ECU verifies the tertiary condition C3 that the defrosting function fd is turned on.

[0045] The electronic control unit (ECU) verifies whether the defrosting function fd is on via defrosting information I3 received from the human-machine interface 25, which enables the on / off switching of this defrosting function fd. This defrosting function fd is an auxiliary function for de-icing the glass surface 20. When the defrosting function fd is turned on, this turns on a blower that sends air to the glass surface 20 from inside the vehicle 2.

[0046] In a non-limiting embodiment, the tertiary condition C3 includes turning on the defrosting function fd and adjusting it to the maximum level Th2. The maximum level Th2 is separately known as the maximum defrosting level Th2. Thus, in a non-limiting embodiment, the electronic control unit ECU verifies the tertiary condition that the defrosting function fd is turned on and adjusted to the maximum level Th2.

[0047] In a non-limiting embodiment, the maximum defrost level Th2 is the final level corresponding to the maximum defrost power.

[0048] In a non-limiting embodiment, the electronic control unit (ECU) is further configured to verify whether the driver's seat 27 is in use.

[0049] Therefore, in the non-limiting embodiment shown in Figure 2, in step E3', indicated as F3'(ECU, C4(o, 27)), the electronic control unit ECU verifies the fourth-order condition C4 that person o is in the driver's seat 27 of the automobile 2.

[0050] Please note that steps E1 to E3, and possibly step E3', may be performed simultaneously or sequentially in any order, or some may be performed simultaneously while others are performed sequentially in any order.

[0051] In step E4, shown as F4 (ECU, C, Cy) in Figures 1 and 2, if all conditions C are met, the electronic control unit turns on the de-icing device 21 to start the de-icing cycle Cy. "Turning on the de-icing device 21" means that the electronic control unit ECU sends a command to the de-icing device 21 to operate the pump 215 and the drive motor 212.

[0052] Therefore, the following are necessary to initiate the de-icing cycle (Cy): - The ignition device Cc of the vehicle 2 is turned on, and - The ambient temperature t is less than the temperature threshold Th1, and, - The defrost function FD must be turned on.

[0053] If condition C4 is also to be verified, the following is required: - The ignition device Cc of the vehicle 2 is turned on, and - The ambient temperature t is less than the temperature threshold Th1, and, - The defrost function FD must be turned on, and - Person O is sitting in the driver's seat 27.

[0054] Please note that if no one is in the driver's seat 27, this means that de-icing is being performed manually by a person. The electronic control unit will not start the de-icing cycle Cy.

[0055] Turning on the de-icing device 21 includes the following: - Turn on the drive motor 212. This drive motor 212 enables the wiper blade 2101 of the wiper system 210. - Turn on pump 215. Pump 215 allows liquid L, Lq to flow through the conduit system 213 until the liquid L, Lq is discharged to the glass surface 20 through one or more orifices 2100a of one or more spraying devices 2100.

[0056] Therefore, in step D5, shown as F5(21(210), Cy, L, Lq, 20) in Figures 1 and 2, the de-icing cycle Cy is performed. The de-icing cycle Cy is performed by the de-icing device 21. The de-icing cycle Cy includes the step of spraying the liquids L and Lq onto the glass surface 20 by at least one of the spraying devices 2100.

[0057] In a first non-limiting embodiment, the de-icing cycle Cy comprises a step of spraying a de-icing liquid L. In a second non-limiting embodiment, the de-icing cycle Cy comprises a step of spraying a heated liquid Lq. In the non-limiting example, the heated liquid Lq is water or windshield cleaning liquid. For this purpose, a heating element (not shown) is used to heat the liquid Lq. This second non-limiting embodiment eliminates the need to use a specific liquid Lq, e.g., de-icing liquid L, for de-icing. Therefore, a tank used for a standard wiping function, designed to remove water and dirt from the glass surface 20, can be used as the tank 214 used for de-icing. This avoids the need for an additional tank. Thus, the space required in the vehicle 2 is reduced. In a non-limiting embodiment, one or more heating resistors are installed in the tank 214 for storing the liquid Lq to heat the liquid Lq. In another, non-limiting embodiment, one or more heating elements are embedded in the wall of a duct positioned between a tank 214 for storing liquid Lq and an orifice 2100a for spraying liquid Lq.

[0058] Thus, by testing conditions C1 to C3 and optionally condition C4, de-icing of the glass surface 20 of the vehicle 2 can be initiated automatically and autonomously without the need for human intervention, i.e., it can be performed. Therefore, the glass surface 20 of the vehicle 2 is de-iced before the vehicle 2 starts driving. This allows the vehicle 2 to be quickly ready for driving.

[0059] Therefore, de-icing process 1 is carried out by a system Sys for de-icing the glass surface 20 of the vehicle 2. The de-icing system Sys is shown in Figure 3.

[0060] The de-icing system Sys is - A temperature measuring device 24 configured to measure the ambient temperature t (a function shown as f1(24, t), - The de-icing device 21 comprises a wiper system 210 having at least one spraying device 2100, - The aforementioned electronic control unit ECU, Equipped with, The de-icing device 21 is configured to perform a de-icing cycle Cy, The de-icing cycle Cy comprises the step of spraying the liquids L and Lq onto the glass surface 20 using at least one of the spraying devices 2100 (a function shown as f2(21(210), Cy, L, Lq, 20)).

[0061] Figure 3 shows the functions of the electronic control unit (ECU).

[0062] The electronic control unit (ECU) is configured to work in cooperation with the ignition system start switch. Therefore, the electronic control unit (ECU) -Receive primary information I1 regarding the ignition device Cc of the vehicle 2 (function f3 (ECU, 22, I1, Cc)), - Based on the primary information I1, verify whether the ignition device Cc of vehicle 2 is on (function f4 (ECU, C1 (Cc, 22, 23))). It is structured in this way. The primary information I1 is also known separately as ignition device information I1. In this way, the electronic control unit (ECU) verifies the primary condition C1.

[0063] Therefore, the electronic control unit (ECU) receives the primary information I1 from the ignition system start switch 22.

[0064] Furthermore, the electronic control unit (ECU) is configured to cooperate with the temperature measuring device 24 to retrieve the ambient temperature t. In a non-limiting embodiment, the temperature measuring device 24 comprises one or more temperature sensors or is a weather server. In a non-limiting example, at least one of the temperature sensors is located in the driver's mirror of the vehicle, in the engine compartment, etc. Therefore, the electronic control unit, -Receive secondary information I2 regarding the outside temperature t (function f5 (ECU, 24, 12, t)), -Based on the primary information I2, verify whether the ambient temperature t is less than the temperature threshold Th1 (function f6(ECU, C2(t, Th1)) It is structured in this way. This secondary information I2 is separately known as temperature information I2. In this way, the electronic control unit (ECU) verifies the secondary condition C2.

[0065] Therefore, the electronic control unit (ECU) receives the value of the ambient temperature t from one or more temperature sensors or from a weather server.

[0066] Furthermore, the electronic control unit ECU is configured to cooperate with the human-machine interface 25 used for the defrosting function fd. Therefore, the electronic control unit ECU is configured to cooperate with the human-machine interface 25 used for the defrosting function fd. -Receive tertiary information I3 regarding the defrost function fd (f7(ECU, 25, I3, fd)), -In accordance with the tertiary information I3, verify whether the defrost function fd is on (function f8 (function ECU, C3(fd))), It is structured in this way. This tertiary information I3 is also known separately as defrosting information I3. In this way, the electronic control unit (ECU) verifies the tertiary condition C3. In a non-limiting embodiment, the electronic control unit ECU is configured to verify whether the defrosting function fd is on in accordance with the tertiary information I3 and to adjust it to the maximum level Th2 (function f8'(ECU, C3(fd, Th2)).

[0067] Therefore, the electronic control unit (ECU) receives information from the human-machine interface 25 indicating that the defrosting function is on and at what level.

[0068] Finally, in a non-limiting embodiment, the electronic control unit ECU is configured to cooperate with a sensor 26 regarding the presence of at least one of the vehicles 2. Therefore, in a non-limiting embodiment, the electronic control unit ECU is configured -Receives quaternary information I4 regarding the presence of a person or the driver's seat 27 of a vehicle (function f9 (ECU, 26, 14, o, 27)), -In accordance with the fourth-order information I4, verify whether person o is in the driver's seat 27 (function f10(ECU, C4(o, 27)), It is structured in this way. This fourth-order information I4 is also known separately as existence information. Therefore, the electronic control unit (ECU) analyzes the fourth-order information I4 and estimates from it whether or not there is a person in the driver's seat 27. In this way, the electronic control unit (ECU) verifies the fourth-order condition C4.

[0069] Therefore, the electronic control unit (ECU) receives information from one or more presence sensors 26 indicating whether or not the driver's seat 27 is in use.

[0070] Functions f8', f9, and f10 are optional and are therefore shown with dotted lines in Figure 3. Thus, the electronic control unit (ECU) receives information regarding the use of the driver's seat 27 from one or more presence sensors.

[0071] Finally, if all conditions C are met, i.e., the outside temperature t is less than the temperature threshold Th1, the ignition device Cc of the vehicle 2 is on, the defrosting function fd is on, and if a person o is in the driver's seat 27, the electronic control unit ECU is configured to turn on the de-icing device 21 to start the de-icing cycle Cy (function f11(ECU, C, Cy)).

[0072] Therefore, when the de-icing device 21 is turned on, it performs the de-icing cycle Cy (function f2 described above).

[0073] Note that primary information I1, secondary information I2, tertiary information I3, and quaternary information I4 are transmitted via the vehicle network. In non-specific examples, the vehicle network is CAN or LIN.

[0074] It should be noted that the de-icing system Sys may include one or more computer program products Pg having one or more instruction sequences that can be executed by the electronic control unit ECU, and that the de-icing process 1 described above can be performed by the execution of the instruction sequences.

[0075] Such a computer program Pg may be input into a ROM-type non-volatile read-only memory, or into an EEPROM or flash-type rewritable non-volatile memory. The computer program Pg may be input into or loaded into memory at the factory, or downloaded into memory remotely. The instruction sequence may be a sequence of machine code, or a sequence of control language that is decoded by an electronic control unit at runtime. In the non-limiting example of Figure 3, the computer program Pg is input into memory 28 of the de-icing system Sys.

[0076] Therefore, the de-icing system Sys includes at least one memory 28 connected to the electronic control unit ECU. The memory 28 is a computer-readable non-volatile memory support that, when executed by the computer, contains instructions that cause the computer to execute the de-icing program 1.

[0077] It should be understood that the description of the present invention is not limited to the embodiments and the field described above. Therefore, in another non-limiting embodiment, the de-icing process 1 may also be applied to the side glass surface 20 of the side window of the vehicle 2. Therefore, in another non-limiting embodiment, the de-icing process 1 may also be applied to the glass surface 20 of the rear window of the vehicle 2.

[0078] Therefore, the present invention described above has the following advantages in particular. -The present invention makes it possible to verify the conditions under which the de-icing device 21 can be turned on, particularly immediately before using the vehicle 2 (when the ignition device Cc of the vehicle 2 is on and, if applicable, the driver's seat 27 is in use), when ice is present, and while the de-icing function fd is in use. -According to the present invention, the same wiper system 210 used to remove water and dirt from the glass surface 20 can be used for de-icing the glass surface 20. -This invention makes it possible to save the user time. This is because de-icing is started automatically before the vehicle 2 is used, without user intervention, and the de-icing process takes only a few minutes. - The present invention is easy to implement.

Claims

1. A process (1) for deicing a glass surface (20) of a vehicle (2), said vehicle (2) comprising a deicing device (21) equipped with a wiper system (210) having at least one device (2100) for spraying a liquid (L, Lq), The de-icing process (1) comprises: a step (E1) of verifying a primary condition (C1) that the ignition (Cc) of said vehicle (2) is on; a step (E2) of verifying a secondary condition (C2) that the outside air temperature (t) is less than a temperature threshold value (Th1); a step (E3) of verifying a tertiary condition (C3) that the defrost function (fd) is on; - if all said conditions are met, a step (E4) of switching on said de-icing device (21) to start a de-icing cycle (Cy), said de-icing cycle (Cy) comprising a step of spraying said liquid (L, Lq) on said glass surface (20) by means of at least one said device (2100) for spraying; - executing said de-icing cycle (Cy) by said de-icing device (21); A de-icing process (1), comprising:

2. The temperature threshold (Th1) is in the range of 3° to 5° C. A de-icing process (1) according to claim 1.

3. The tertiary condition (C3) includes turning on the defrosting function (fd) and adjusting it to a maximum level (Th2); A de-icing process (1) according to claim 1 or 2.

4. The deicing cycle (Cy) comprises a step of spraying a deicing liquid (L); A de-icing process (1) according to claim 1 or 2.

5. The de-icing cycle (Cy) comprises a step of spraying a heated liquid (Lq), A de-icing process (1) according to claim 1 or 2.

6. said de-icing process (1) comprising an additional step (E3′) of verifying a quaternary condition (C4) that a person (o) is present in the driver's seat (27) of said vehicle (2), A de-icing process (1) according to claim 1 or 2.

7. The wiper system (210) further comprises at least one wiper blade (2101) and at least one hydraulic ramp; said hydraulic ramp forms at least one said spray device (2100) arranged at the height of said wiper blade (2101); A de-icing process (1) according to claim 1 or 2.

8. The vehicle (2) is provided with an ignition start switch (22); When the ignition start switch (22) is in the accessory (23) ignition position, the ignition (Cc) of the vehicle (2) is turned on. A de-icing process (1) according to claim 1 or 2.

9. A system (Sys) for deicing a glass surface (20) of a vehicle (2), said deicing system (Sys) comprising a deicing device (21) equipped with a wiper system (210) having at least one device (2100) for spraying a liquid (L, Lq) onto the glass surface (20) of the vehicle (2), The de-icing device (21) is configured to perform a de-icing cycle (Cy), the de-icing cycle (Cy) comprising a step of spraying the liquid (L, Lq) onto the glass surface (20) by at least one device (2100) for spraying, The de-icing system (Sys) comprises: a temperature measuring device (24) configured to measure the outside air temperature (t); - an electronic control unit (ECU); Further equipped with The electronic control unit (ECU) - receiving primary information (I1) relating to the ignition device (Cc) of said vehicle (2), - depending on said primary information (I1), verifying a primary condition (C1) that said ignition (Cc) of said vehicle (2) is on, - receiving secondary information (I2) about the outside temperature (t), - depending on said secondary information (I2), verifying a secondary condition (C2) that said outside air temperature (t) is less than a temperature threshold value (Th1), - receiving tertiary information (I3) relating to the defrost function (fd), - depending on said tertiary information (I3), verifying a tertiary condition (C3) that said defrost function (fd) is on, - if all said conditions are met, switching on said de-icing device (21) to start a de-icing cycle (Cy); The ice-removal system (Sys) is characterized by being configured as follows.

10. The electronic control unit (ECU) - receiving quaternary information (I4) relating to the presence of a person (o) in the driver's seat (27) of said vehicle (2), - verifying a fourth condition (C4) regarding the presence of a person (o) in said driver's seat (27) depending on said fourth information (I4), [0033] A de-icing system (Sys) according to claim 9.

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