DE102022003660A1 - Vehicle window cleaning system - Google Patents

Abstract

This invention relates to a vehicle window cleaning system comprising: a rain sensor and a central control unit; said vehicle window cleaning system further comprising an exhaust gas guide tube, said exhaust gas guide tube being fluidly connectable to the exhaust pipe of the vehicle and the exit of said exhaust gas guide tube being positioned in the vicinity of the vehicle glass; and when said rain sensor detects an amount of precipitation exceeding a preset value, said central control unit controls the establishment of a fluidic connection of the exhaust gas guide tube with the exhaust pipe of the vehicle so as to realize the blowing of said vehicle windows; and/or when there is ice, snow or frost on the vehicle windows, said central control unit controls the establishment of a fluidic connection of the exhaust gas guide tube with the vehicle exhaust pipe in order to use the heat of the vehicle exhaust gas to heat up the ice, the to remove snow or frost. With this invention, the speed and heat of the exhaust gas of the vehicle can be used efficiently to remove rain, ice, snow and frost from the vehicle windows in good time.

Description

This invention belongs to the field of vehicles, specifically it relates to a vehicle window cleaning system.

Vehicle windows are an important part of vehicles. Vehicle windows include the windshield, vehicle windows, and rear window. While driving, the driver can observe the vehicle surroundings through the vehicle windows in order to obtain information about the surroundings, which forms the basis for a safe journey.

The driver's vision is often impaired due to the weather. For example, if the vehicle is driving in the rain or snow, the driver's view is severely limited when the rain or snow falls on the vehicle windows. For this reason, windshield wipers are installed on the vehicle so that rain and snow falling on the windshield can be removed immediately.

However, since rain and snow are continuous processes, while the windshield wipers perform a reciprocating motion, when it rains or snows relatively heavily, the rain or snow accumulates on the windshield for a short time. While this accumulation is immediately eliminated by the continuous reciprocating movement of the windshield wipers, considering the speed of vehicles travel, the visual impairment experienced by the driver in such a case is nevertheless not negligible. Therefore, the windshield wipers currently available have different levels, so that the driver can choose different levels depending on the rain or snow intensity. In addition, there are also windshield wipers in the current state of the art, in which the speed of the reciprocating movement adjusts itself depending on the driving speed of the vehicle. That is, in an already selected stage, the speed of the reciprocating motion also increases as the running speed increases. However, as for rain, even with the fastest wiper speed, it may still not be possible to wipe away the rain falling on the windshield in time.

In addition, snow can accumulate on the vehicle's windshield in winter. If the snow is not removed in time, a thin layer of ice can form from it, which means that the windscreen cannot be cleared quickly and effectively even by using the windscreen wipers. And another problem is that when windscreen washer fluid is sprayed in winter, it can also immediately freeze into a thin layer of ice. Although the ice can be melted by switching on the heating function in the vehicle, this process takes a certain amount of time, which can easily become dangerous while driving.

Another problem that the prior art windshield wipers have is that the wiping area of the windshield wipers cannot completely cover the entire windshield. As a result, snow or rain swept away by the windshield wipers tends to accumulate on either side of the windshield, which is equivalent to increasing the size of the A-pillar, further reducing the driver's view.

In order to solve the above technical problems, this invention proposes the following technical solution.

A vehicle window cleaning system, comprising: a rain sensor, said rain sensor for detecting the amount of precipitation outside the vehicle;
a central control unit, said central control unit being capable of receiving data from said rain sensor and using data from said rain sensor to control the drive unit of the windscreen wipers and consequently the frequency of reciprocation of the windscreen wipers;
said vehicle window cleaning system further comprising:
an exhaust duct, said exhaust duct being fluidly connectable to the exhaust of the vehicle and the exit of said exhaust duct being positioned proximate the vehicle window; and
when said rain sensor detects an amount of precipitation exceeding a preset value, said central control unit controls the establishment of a fluidic connection of the exhaust gas guide tube with the exhaust pipe of the vehicle, so as to realize the blowing of said vehicle windows; and/or when there is ice, snow or frost on the vehicle windows, said central control unit controls the establishment of a fluidic connection of the exhaust gas guide tube with the vehicle exhaust pipe in order to use the heat of the vehicle exhaust gas to heat up the ice, the to remove snow or frost.

• - Es umfasst noch einen Temperatursensor, wobei der besagte Temperatursensor zur Messung der Umgebungstemperatur außerhalb des Fahrzeugs dient, und, wenn die besagte Umgebungstemperatur unter einem voreingestellten Wert liegt und sich auf den Fahrzeugscheiben Eis, Schnee oder Reif befindet, oder wenn der besagte Regensensor Regen auf den Fahrzeugscheiben erfasst, die besagte zentrale Steuereinheit den Aufbau einer fluidischen Verbindung des Abgas-Führungsrohrs mit dem Auspuff des Fahrzeugs steuert, um das Abgas des Fahrzeugs zum Freiblasen der Fahrzeugscheiben zu verwenden.
• - Es umfasst noch einen Radgeschwindigkeitssensor, wobei die besagte zentrale Steuereinheit auf Basis der Daten des besagten Radgeschwindigkeitssensors die Fahrzeuggeschwindigkeit ermittelt, und, wenn die besagte Fahrzeuggeschwindigkeit größer als ein voreingestellter Wert ist und wenn der besagte Regensensor Regen auf den Fahrzeugscheiben erfasst, die besagte zentrale Steuereinheit den Aufbau einer fluidischen Verbindung des Abgas-Führungsrohrs mit dem Auspuff des Fahrzeugs steuert, um das Abgas des Fahrzeugs zum Freiblasen der Fahrzeugscheiben zu verwenden.
• - (Auf Basis der Daten des besagten Motordrehzahl)sensors sowie der Ganginformationen wird die Fahrzeuggeschwindigkeit ermittelt, und, wenn die besagte Fahrzeuggeschwindigkeit größer als ein voreingestellter Wert ist und wenn der besagte Regensensor Regen auf den Fahrzeugscheiben erfasst, die besagte zentrale Steuereinheit den Aufbau einer fluidischen Verbindung des Abgas-Führungsrohrs mit dem Auspuff des Fahrzeugs steuert, um das Abgas des Fahrzeugs zum Freiblasen der Fahrzeugscheiben zu verwenden.
• - Zwischen dem Abgas-Führungsrohr und dem Auspuff des Fahrzeugs ist ein Ventil platziert, wobei das besagte Ventil auf Grundlage der besagten zentralen Steuereinheit den Abgasstrom in dem besagten Abgas-Führungsrohr steuern kann.
• - Es umfasst noch einen manuellen Schalter, wobei der besagte manuelle Schalter das Herstellen und Unterbrechen der fluidischen Verbindung des besagten Abgas-Führungsrohrs mit dem Auspuff des Fahrzeugs steuern kann.
• - Bei dem besagten manuellen Schalter handelt es sich um einen Kippschalter, um einen Druckschalter oder um einen Drehschalter.
• - Die besagte zentrale Steuereinheit kann außerdem ferngesteuert werden, um folglich den Fahrzeugmotor einzuschalten und die fluidische Verbindung zwischen dem Abgas-Führungsrohr und dem Auspuff des Fahrzeugs aufzubauen.
• - Der Austritt des besagten Abgas-Führungsrohrs ist an der Oberkante oder Seite der Fahrzeugscheibe positioniert.

Furthermore, the vehicle window cleaning system of this invention can still have one of the following ing characteristics or several of these in combination include:

• - It also includes a temperature sensor, said temperature sensor being used to measure the ambient temperature outside the vehicle and when said ambient temperature is below a preset value and there is ice, snow or frost on the vehicle windows, or when said rain sensor is raining detects the vehicle windows, said central control unit controls the establishment of a fluidic connection of the exhaust gas guide tube with the exhaust pipe of the vehicle in order to use the exhaust gas of the vehicle to blow the vehicle windows clear.
• - It further comprises a wheel speed sensor, said central control unit determining vehicle speed based on data from said wheel speed sensor, and when said vehicle speed is greater than a preset value and when said rain sensor detects rain on the vehicle windows, said central control unit controls the establishment of a fluid connection between the exhaust gas guide tube and the exhaust pipe of the vehicle in order to use the exhaust gas from the vehicle to blow the vehicle windows clear.
• - (Based on the data from said engine speed) sensor and the gear information, the vehicle speed is determined and, if said vehicle speed is greater than a preset value and if said rain sensor detects rain on the vehicle windows, said central control unit sets up a fluidic Connection of the exhaust guide tube to the exhaust of the vehicle controls to use the exhaust gas of the vehicle to blow the vehicle windows.
• - A valve is placed between the exhaust gas guide pipe and the exhaust pipe of the vehicle, said valve being able to control the exhaust gas flow in said exhaust gas guide pipe on the basis of said central control unit.
• - It also comprises a manual switch, said manual switch being able to control the making and breaking of the fluidic connection of said exhaust gas guide tube with the exhaust pipe of the vehicle.
• - Said manual switch is a toggle switch, a push button switch or a rotary switch.
• the said central control unit can also be remotely controlled, thus starting the vehicle's engine and establishing the fluidic connection between the exhaust gas guide tube and the vehicle's exhaust pipe.
• - The exit of said exhaust guide tube is positioned at the top edge or side of the vehicle window.

Still further, this invention relates to a vehicle including the aforesaid vehicle window cleaning system.

• 1 ist eine schematische Darstellung der Rohrleitungsanordnung im Rahmen des Fahrzeugscheiben-Reinigungssystems dieser Erfindung.
• 2 ist eine schematische Darstellung des Fahrzeugscheiben-Reinigungssystems dieser Erfindung.

According to the above technical solution, with the vehicle window cleaning system of this invention, the speed and heat of the vehicle exhaust gas can be efficiently used to remove rain and ice, snow and frost from the vehicle windows in time to ensure the driver's visibility and so on create the basis for a safe journey.

• 1 Fig. 12 is a schematic representation of the piping arrangement within the vehicle window cleaning system of this invention.
• 2 Figure 12 is a schematic representation of the vehicle window cleaning system of this invention.

The technical solution of this invention is explained in detail below with the aid of the figures.

This invention is essentially based on the following inventive concept: using the velocity and heat of the exhaust gas from the engine exhaust and directing it to the vehicle windows to remove and melt rain and snow.

As in 1 As can be seen, the pipelines within the scope of the vehicle window cleaning system of this invention essentially consist of a further exhaust gas guide tube which leads from the exhaust pipe of the vehicle, this exhaust gas guide tube extending to the windscreen, the rear window and the side windows of the vehicle. For practical control of the exhaust gas guide pipe, a first flow control valve 1, a second flow control valve 2 and a third flow control valve 3 are attached to the respective parts of the exhaust gas guide pipe extending to the windshield, rear glass and side windows of the vehicle. Of course, it is also conceivable to provide a total flow control valve on the connecting pipe between the exhaust pipe of the vehicle and the exhaust gas guide pipe. The outlet of the exhaust duct The pipe can be placed above the windshield, rear window and side windows of the vehicle, with this placement method, on the one hand, reducing the visibility is the least, and on the other hand, the flow direction of the exhaust gas in the part of the exhaust gas guide tube corresponds to the direction of gravity, which allows rainwater to drain is accelerated on the vehicle windows. Of course, the exit of the exhaust guide tube can also be placed on the side of the windshield, rear window and side windows of the vehicle.

As in 2 As can be seen, the vehicle window cleaning system of this invention comprises a rain sensor, a temperature sensor and a wheel speed sensor, these three sensors serving to detect the amount of precipitation on the windshield, the ambient temperature outside the vehicle and the wheel speed of the vehicle, respectively. The central control unit receives the corresponding sensor data from these three sensors and consequently learns the amount of precipitation and the ambient temperature outside the vehicle as well as the vehicle speed.

Technical experts in this field know that the wheel speed sensor can be replaced with another sensor. For example, the vehicle's engine speed sensor can be used and, in combination with the vehicle's gear information, the current vehicle speed can be calculated.

The central control unit controls the wiper drive unit and the valve drive unit based on the preset control parameters, respectively, and thus controls the wipers and the opening degree of the valves, so that the wipers and the exhaust gas flow in the exhaust gas guide pipe are controlled in relation to different external conditions and vehicle speeds become.

In addition, a manual switch can be provided in the vehicle compartment to control the opening degree of the flow control valves, so that the driver can manually adjust the flow or cutoff and/or the corresponding flow rate of the exhaust gas in the exhaust gas guide pipe depending on the actual situation. For example, the manual switch can be configured as a toggle switch or as a push button switch so as to control the flow or shut-off of the exhaust gas in the exhaust gas guide tube. The manual switch can also be set up as a rotary switch so that the flow rate and the flow rate of the exhaust gas in the exhaust gas guide tube can be adjusted in the range from the closed state to the maximum opening.

1. (1) Wenn der Fahrzeugmotor bereits zu laufen beginnt, das Fahrzeug aber immer noch stillsteht, kann, wenn sich Schnee auf den Fahrzeugscheiben angesammelt oder eine Eisschicht gebildet hat, der manuelle Schalter betätigt werden, um so die Durchflussregelventile zu öffnen, damit der entsprechende Teil des Abgas-Führungsrohrs an der Fahrzeugscheibe mit dem Ausblasen des Abgases beginnt, wobei die Wärme und die Geschwindigkeit des Abgases verwendet werden, um den angesammelten Schnee und die Eisschicht zu schmelzen und von der Scheibe zu entfernen; in Anbetracht, dass es bereits Fahrzeuge gibt, bei denen Motor oder Klimaanlage etc. aus der Ferne eingeschaltet werden können, kann natürlich auch das Fahrzeugscheiben-Reinigungssystem dieser Erfindung mit Ferneinschaltung realisiert werden, so dass wenn der Fahrer zu seinem Fahrzeug kommt, der Schnee und die Eisschicht bereits entfernt sind.
2. (2) Wenn das Fahrzeug fährt und die Fahrzeuggeschwindigkeit unter dem ersten Schwellenwert für die Fahrzeuggeschwindigkeit liegt, gilt Folgendes:
   • (2.1) Liegt die vom Regensensor gemessene Niederschlagsmenge unter dem ersten Schwellenwert für die Niederschlagsmenge und ist die Außentemperatur höher als der erste Temperatur-Schwellenwert, dann steuert die zentrale Steuereinheit lediglich die Antriebseinheit der Scheibenwischer, damit die Scheibenwischer in Betrieb gesetzt werden. Der erste Temperatur-Schwellenwert kann beispielsweise auf 0°C gesetzt werden. Da in einer solchen Situation das Fahrzeug eher langsam fährt und auch kein starker Regen fällt und bei dieser Temperatur der Regen auch nicht gefrieren kann, reicht es folglich aus, die Scheibenwischer in Betrieb zu setzen.
   • (2.2) Liegt die vom Regensensor gemessene Niederschlagsmenge über dem ersten Schwellenwert für die Niederschlagsmenge, aber unter dem zweiten Schwellenwert für die Niederschlagsmenge, und ist die Außentemperatur höher als der erste Temperatur-Schwellenwert, dann steuert die zentrale Steuereinheit lediglich die Antriebseinheit der Scheibenwischer, damit die Scheibenwischer in Betrieb gesetzt werden, wobei jedoch die Frequenz der Hin- und Herbewegung der Scheibenwischer erhöht werden kann. Der erste Temperatur-Schwellenwert kann beispielsweise auf 0°C gesetzt werden. Da in einer solchen Situation das Fahrzeug eher langsam fährt, reicht es, auch wenn der Niederschlag relativ stark ist, bei dieser Temperatur der Regen jedoch nicht gefrieren kann, folglich aus, lediglich die Betriebsfrequenz der Scheibenwischer zu erhöhen.
   • (2.3) Ist die Außentemperatur geringer als der erste Temperatur-Schwellenwert und liegt die Niederschlagsmenge unter dem ersten Schwellenwert für die Niederschlagsmenge oder über dem ersten Schwellenwert für die Niederschlagsmenge, aber unter dem zweiten Schwellenwert für die Niederschlagsmenge, dann steuert die zentrale Steuereinheit die Antriebseinheit der Ventile zum Öffnen. Der erste Temperatur-Schwellenwert kann beispielsweise auf 0°C gesetzt werden. Da in einer solchen Situation die Möglichkeit besteht, dass das Regenwasser gefriert, werden nicht nur die Scheibenwischer in Betrieb gesetzt, sondern es ist auch noch ein Freiblasen der Fahrzeugscheiben mithilfe des Abgases erforderlich, um die Wärme des Abgases des Fahrzeugs zu verwenden, um das gefrorene Regenwasser auf den Fahrzeugscheiben zum Schmelzen zu bringen.
   • (2.4) Ist die Außentemperatur höher als der erste Temperatur-Schwellenwert, liegt die vom Regensensor gemessene Niederschlagsmenge jedoch über dem dritten Schwellenwert für die Niederschlagsmenge, dann wird die Niederschlagsmenge in einer solchen Situation bereits als sehr groß erachtet, so dass es nicht mehr ausreicht, lediglich die Frequenz der Hin- und Herbewegung der Scheibenwischer zu erhöhen, um das Regenwasser rechtzeitig zu beseitigen, so dass die zentrale Steuereinheit folglich die Antriebseinheit der Ventile zum Öffnen der Ventile steuert und die Ventile mit dem größten Öffnungsgrad öffnen kann, um die Fahrzeugscheiben folglich in größtmöglichem Umfang vom Regenwasser zu befreien.
3. (3) Wenn das Fahrzeug fährt und die Fahrzeuggeschwindigkeit über dem zweiten Schwellenwert für die Fahrzeuggeschwindigkeit liegt, und wenn die vom Regensensor gemessene Niederschlagsmenge über dem vierten Schwellenwert für die Niederschlagsmenge liegt, werden ebenfalls gleichzeitig die Antriebseinheit der Scheibenwischer und die Antriebseinheit der Ventile gesteuert. Hierbei kann der vierte Schwellenwert für die Niederschlagsmenge unter dem Wert des dritten Schwellenwerts für die Niederschlagsmenge liegen, und der zweite Schwellenwert für die Fahrzeuggeschwindigkeit ist größer als der Wert des ersten Schwellenwerts für die Fahrzeuggeschwindigkeit. In diesem Fall ist im Vergleich zu vorangehendem Punkt (2.4) der vierte Schwellenwert für die Niederschlagsmenge zwar kleiner als der dritte Schwellenwert für die Niederschlagsmenge, da jedoch der zweite Schwellenwert für die Fahrzeuggeschwindigkeit größer als der erste Schwellenwert für die Fahrzeuggeschwindigkeit ist, wird folglich die Niederschlagsmenge in einer solchen Situation ebenfalls als bereits sehr groß erachtet, so dass es nicht mehr ausreicht, lediglich die Frequenz der Hin- und Herbewegung der Scheibenwischer zu erhöhen, um das Regenwasser rechtzeitig zu beseitigen, so dass die zentrale Steuereinheit folglich die Antriebseinheit der Ventile zum Öffnen der Ventile steuert und die Ventile mit dem größten Öffnungsgrad öffnen kann, um die Fahrzeugscheiben folglich in größtmöglichem Umfang vom Regenwasser zu befreien.

Specifically, based on the various sensor data, the central control unit can carry out the following corresponding controls:

1. (1) When the vehicle engine has already started running, but the vehicle is still stationary, if snow has accumulated on the vehicle windows or a layer of ice has formed, the manual switch can be operated so as to open the flow control valves so that the relevant part the exhaust gas guide tube on the vehicle window starts blowing out the exhaust gas, using the heat and speed of the exhaust gas to melt and remove the accumulated snow and ice layer from the window; Of course, considering that there are already vehicles in which the engine or air conditioner, etc. can be switched on remotely, the vehicle window cleaning system of this invention can be realized with remote switch-on so that when the driver comes to his vehicle, the snow and the layer of ice has already been removed.
2. (2) If the vehicle is moving and the vehicle speed is below the first vehicle speed threshold:
   • (2.1) If the rainfall measured by the rain sensor is below the first rainfall threshold and the outside temperature is higher than the first temperature threshold, the central control unit only controls the drive unit of the wipers to operate the wipers. The first temperature threshold can be set to 0°C, for example. Since in such a situation the vehicle drives rather slowly and there is no heavy rain and at this temperature the rain cannot freeze either, it is therefore sufficient to put the windshield wipers into operation.
   • (2.2) If the amount of rainfall measured by the rain sensor is above the first threshold amount of rainfall but below the second threshold amount of rainfall, and the outside temperature is higher than the first temperature threshold value, then the central control unit only controls the drive unit of the wipers, so the windshield wipers are operated, but the frequency of reciprocating movement of the windshield wipers is increased can. The first temperature threshold can be set to 0°C, for example. In such a situation, since the vehicle tends to drive slowly, even if the precipitation is relatively heavy, but at this temperature the rain cannot freeze, it is consequently sufficient merely to increase the operating frequency of the windshield wipers.
   • (2.3) If the outside temperature is lower than the first temperature threshold and the amount of precipitation is below the first threshold amount of precipitation or above the first threshold amount of precipitation but below the second threshold amount of precipitation, then the central control unit controls the drive unit of the valves to open. The first temperature threshold can be set to 0°C, for example. In such a situation, since there is a possibility that the rainwater will freeze, not only will the windshield wipers operate, but it is also necessary to blow the vehicle windows clear with the exhaust gas to use the heat of the vehicle's exhaust gas to remove the frozen To melt rainwater on the vehicle windows.
   • (2.4) If the outside temperature is higher than the first temperature threshold value, but the amount of precipitation measured by the rain sensor is above the third threshold value for the amount of precipitation, then the amount of precipitation in such a situation is already considered to be very large, so that it is no longer sufficient to only to increase the frequency of the reciprocating movement of the wipers to eliminate the rainwater in time, so that the central control unit consequently controls the drive unit of the valves to open the valves and can open the valves with the largest opening degree to keep the vehicle windows consequently in to remove as much rainwater as possible.
3. (3) When the vehicle is running and the vehicle speed is above the second vehicle speed threshold value, and when the rainfall amount measured by the rain sensor is above the fourth rainfall amount threshold value, the wiper drive unit and the valve drive unit are also controlled at the same time. Here, the fourth rainfall threshold may be less than the third rainfall threshold and the second vehicle speed threshold is greater than the first vehicle speed threshold. In this case, compared to the previous item (2.4), although the fourth threshold amount of precipitation is smaller than the third threshold amount of precipitation, since the second threshold value of vehicle speed is greater than the first threshold value of vehicle speed, consequently, the amount of precipitation becomes in such a situation is also considered to be already very large, so that it is no longer sufficient merely to increase the frequency of the reciprocating movement of the windshield wipers in order to eliminate the rainwater in time, so that the central control unit consequently requires the drive unit of the valves to open controls the valves and can open the valves with the greatest degree of opening in order to free the vehicle windows from rainwater to the greatest possible extent.

Each of the thresholds set forth above in this invention may be calibrated through testing to determine the appropriate values. With reference to the foregoing schematic embodiment, this invention has already been clearly and fully explained, but it should be understood by those skilled in the art that without departing from the spirit and scope of this invention, any other embodiments can be devised by modifying the disclosed technical solutions. These embodiments are to be considered as falling within the scope of this invention as defined by the claims and any technical solutions corresponding thereto.

Claims (10)

A vehicle window cleaning system comprising: a rain sensor, said rain sensor for detecting the amount of precipitation outside the vehicle; a central control unit, said central control unit being capable of receiving data from said rain sensor and using data from said rain sensor to control the drive unit of the windscreen wipers and consequently the frequency of reciprocation of the windscreen wipers; characterized in that said vehicle window cleaning system further comprises: an exhaust guide tube, said exhaust guide tube being fluidly connectable to the exhaust of the vehicle and the exit of said exhaust guide tube being positioned proximate the vehicle window; and when said rain sensor detects an amount of rainfall exceeding a preset value, the said central control unit controls the establishment of a fluidic connection of the exhaust gas guide tube with the exhaust pipe of the vehicle, so as to realize the blowing of said vehicle windows; and/or when there is ice, snow or frost on the vehicle windows, said central control unit controls the establishment of a fluidic connection of the exhaust gas guide tube with the vehicle exhaust pipe in order to use the heat of the vehicle exhaust gas to heat up the ice, the to remove snow or frost. Vehicle window cleaning system, after claim 1 , characterized in that it further comprises a temperature sensor, said temperature sensor for measuring the ambient temperature outside the vehicle and when said ambient temperature is below a preset value and there is ice, snow or frost on the vehicle windows, or when said rain sensor detects rain on the vehicle windows, said central control unit controls the establishment of a fluidic connection of the exhaust gas guide tube with the exhaust pipe of the vehicle in order to use the exhaust gas of the vehicle to blow the vehicle windows clear. Vehicle window cleaning system, after claim 1 , characterized in that it further comprises a wheel speed sensor, said central control unit determining the vehicle speed on the basis of data from said wheel speed sensor, and when said vehicle speed is greater than a preset value and when said rain sensor detects rain on the vehicle windows, the said central control unit controls the establishment of a fluidic connection of the exhaust gas guide tube with the exhaust pipe of the vehicle in order to use the exhaust gas of the vehicle for clearing the vehicle windows. Vehicle window cleaning system, after claim 1 , characterized in that it further comprises an engine speed sensor, said central control unit determining vehicle speed based on data from said engine speed sensor and gear information, and when said vehicle speed is greater than a preset value and when said rain sensor detects rain on the Vehicle windows detected, the said central control unit controls the establishment of a fluidic connection of the exhaust gas guide tube with the exhaust pipe of the vehicle in order to use the exhaust gas of the vehicle to blow the vehicle windows clear. Vehicle window cleaning system, according to any of the Claims 1 until 4 , characterized in that a valve is placed between the exhaust gas guide pipe and the exhaust pipe of the vehicle, said valve being able to control the exhaust gas flow in said exhaust gas guide pipe on the basis of said central control unit. Vehicle window cleaning system, according to any of the Claims 1 until 4 , characterized in that it further comprises a manual switch, said manual switch being able to control the making and breaking of the fluidic connection of said exhaust gas guide tube with the exhaust of the vehicle. Vehicle window cleaning system, after claim 6 , characterized in that said manual switch is a toggle switch, a push button switch or a rotary switch. Vehicle window cleaning system, according to any of the Claims 1 until 4 , characterized in that the said central control unit can also be controlled remotely, thus starting the vehicle engine and establishing the fluidic connection between the exhaust gas guide tube and the exhaust pipe of the vehicle. Vehicle window cleaning system, according to any of the Claims 1 until 4 , characterized in that the exit of said exhaust gas guide tube is positioned at the top edge or side of the vehicle window. Vehicle, characterized in that it comprises a vehicle window cleaning system according to any one of Claims 1 until 9 includes.

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