SE1451487A1 - Method and system for controlling the windshield wiper unit of a vehicle - Google Patents

Method and system for controlling the windshield wiper unit of a vehicle Download PDF

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Publication number
SE1451487A1
SE1451487A1 SE1451487A SE1451487A SE1451487A1 SE 1451487 A1 SE1451487 A1 SE 1451487A1 SE 1451487 A SE1451487 A SE 1451487A SE 1451487 A SE1451487 A SE 1451487A SE 1451487 A1 SE1451487 A1 SE 1451487A1
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SE
Sweden
Prior art keywords
vehicle
wiper unit
wiping speed
windshield wiper
determining
Prior art date
Application number
SE1451487A
Other languages
Swedish (sv)
Other versions
SE541196C2 (en
Inventor
Svensson Markus
Original Assignee
Scania Cv Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Scania Cv Ab filed Critical Scania Cv Ab
Priority to SE1451487A priority Critical patent/SE541196C2/en
Publication of SE1451487A1 publication Critical patent/SE1451487A1/en
Publication of SE541196C2 publication Critical patent/SE541196C2/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
    • B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
    • B60S1/0818—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
    • B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
    • B60S1/0896—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to a vehicle driving condition, e.g. speed

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Driving Devices And Active Controlling Of Vehicle (AREA)

Abstract

The present invention relates to a method for controlling the windshield wiper unit of a vehicle. The method comprises the step of determining (S1) a potential risk for staining of water by means of said wiper unit upon road users present in the surroundings of said vehicle. The method comprises the step of automatically reducing (S2) the wiping speed of said wiper unit based on the determined potential risk.The present invention also relates to a system. The present invention also relates to a vehicle. The present invention also relates to a computer program and a computer program product.(Fig. 3)

Description

ABSTRACT The present invention relates to a method for controlling the windshield wiper unit of a vehicle. The method comprises the step of determining (Si) a potential risk for staining of water by means of said wiper unit upon road users present in the surroundings of said vehicle. The method comprises the step of automatically reducing (S2) the wiping speed of said wiper unit based on the determined potential risk.
The present invention also relates to a system. The present invention also relates to a vehicle. The present invention also relates to a computer 10 program and a computer program product.
(Fig. 3) 1 METHOD AND SYSTEM FOR CONTROLLING THE WINDSHIELD WIPER UNIT OF A VEHICLE TECHNICAL FIELD The invention relates to a method for controlling the windshield wiper unit of a vehicle according to the preamble of claim 1. The invention also relates to a system for controlling the windshield wiper unit of a vehicle. The invention also relates to a vehicle. The invention in addition relates to a computer program and a computer program product.
BACKGROUND ART Vehicles are provided with windshield wipers for wiping the windshield of the vehicle in order to provide a clear view for the driver. It is known to control windshield wipers. US20130093364 for example discloses a system for varying the speed of the windshield wipers by e.g. measuring the speed of the vehicle and adapting the speed of the windshield wipers to the speed of the vehicle.
OBJECTS OF THE INVENTION An object of the present invention is to provide a method for controlling the windshield wiper unit of a vehicle which improves the adaptability of the windshield wiper unit.
Another object of the present invention is to provide a system for controlling the windshield wiper unit of a vehicle which improves the adaptability of the windshield wiper unit.
SUMMARY OF THE INVENTION These and other objects, apparent from the following description, are achieved by a method, a system, a vehicle, a computer program and a computer program product, as set out in the appended independent claims. Preferred embodiments of the method and the system are defined in appended dependent claims.
Specifically an object of the invention is achieved by a method for controlling the windshield wiper unit of a vehicle. The method comprises the step of determining a potential risk for staining of water by means of said wiper unit upon road users present in the surroundings of said vehicle. The method comprises the step of automatically reducing the wiping speed of said wiper unit based on the determined potential risk. Hereby road users such as passengers entering a bus will not be stained by water as the windshield wiper unit adapts its wiping speed so as to avoid that. Thus the adaptability of the windshield wiper unit is hereby improved.
According to an embodiment of the method the step of reducing said wiping speed is effected when the vehicle comes to a standstill. Hereby staining is avoided maintaining safety as the windshield wiper unit will operate at the necessary speed when the vehicle is moving thus not negatively affecting the visibility for the driver.
According to an embodiment of the method the step of reducing the wiping speed comprises reducing said wiping speed to zero. Hereby is secured that no road users present in the surroundings of the vehicle will be stained due to operation of the windshield wiper unit.
According to an embodiment of the method the step of determining a potential risk for staining comprises the step of determining whether a front entrance door is opened or is determined to be opened within a 2 3 predetermined time Hereby unnecessary reduction of speed of the windshield wiper unit may be avoided.
According to an embodiment the method comprises the step of determining a potential risk for staining comprises the step of determining the presence of a road user in the surroundings of said vehicle. Hereby it is secured that a road user present in the surroundings of the vehicle will not be stained by means of the windshield wipers of the vehicle.
According to an embodiment the method comprises the step of resetting the wiping speed of the windshield wiper unit if it is determined that there is no longer a risk for staining. Hereby normal operation of the windshield wiper unit will be optimized such that visibility of the driver will be maintained when there is no risk for staining.
According to an embodiment the method comprises the steps of: determining whether the vehicle is taking off or is determined to take off; and, based on a determined taking off of the vehicle, resetting the wiping speed of the windshield wiper unit. Hereby is secured that the visibility of the driver is not impaired during take off.
Specifically an object of the invention is achieved by a system for controlling the windshield wiper unit of a vehicle adapted to perform the methods as set 20 out above.
The system according to the invention has the advantages according to the corresponding method claims.
BRIEF DESCRIPTION OF THE DRAWINGS For a better understanding of the present invention reference is made to the following detailed description when read in conjunction with the 4 accompanying drawings, wherein like reference characters refer to like parts throughout the several views, and in which: Fig. 1 schematically illustrates a side view of a vehicle according to the present invention; Fig. 2 schematically illustrates a system for controlling the windshield wiper unit of a vehicle according to an embodiment of the present invention; Fig. 3 schematically illustrates a block diagram of a method for controlling the windshield wiper unit of a vehicle according to an embodiment of the present invention; and Fig. 4 schematically illustrates a computer according to an embodiment of the present invention.
DETAILED DESCRIPTION Hereinafter the term "link" refers to a communication link which may be a physical connector, such as an optoelectronic communication wire, or a non- physical connector such as a wireless connection, for example a radio or microwave link.
Hereinafter the term "road user" refers to any person that may stained with water by means of windshield wipers of a vehicle when present in the surroundings of said vehicle. The term "road user" comprises a passenger or potential passenger of a bus.
Fig. 1 schematically illustrates a side view of a vehicle according to the present invention. The exemplified vehicle 1 is a heavy vehicle in the shape of a bus. The vehicle according to the present invention could be any vehicle such as a truck or a car. The vehicle 1 comprises a front entrance door la for passengers to enter the vehicle, i.e. the bus.
The vehicle is provided with a windshield wiper unit 50. The windshield wiper unit 50 comprises at least one windshield wiper blade 52. The windshield wiper unit 50 comprises a drive member 54 for driving and controlling the wiping speed of the wiper blades of the windshield wiper unit 50. The vehicle 1 comprises a system for controlling the windshield wiper unit 50 of the vehicle.
A road user RU is present in the surroundings of the vehicle such that there is a risk of staining by means of the windshield wiper unit 50 by rainfall.
Fig. 2 schematically illustrates a system I for controlling the windshield wiper unit 50 of a vehicle according to an embodiment of the present invention.
The system I comprises electronic control unit 100.
The system I comprises means 120 for determining a potential risk for staining of water by means of said wiper unit upon road users present in the surroundings of said vehicle.
The means 120 for determining a potential risk for staining comprises means 122 for determining whether a front entrance door is opened or is determined to be opened within a predetermined time. The means 122 for determining whether a front entrance door is opened or is determined to be opened may comprise any suitable detector means for detecting front entrance door is opened or is about to be opened. The means 122 for determining whether a front entrance door is opened or is about to be opened comprises according to an embodiment an actuator for activating opening of the front door such as an actuator for opening the front door in a bus.
The means 120 for determining a potential risk for staining comprises means 124 for determining the presence of a road user in the surroundings of said vehicle. The means 124 for determining the presence of a road user in the surroundings of said vehicle may comprise any suitable detector means. The 6 means 124 for determining road users present in the surroundings of said vehicle comprise according to an embodiment one or more camera units.
The system I comprises means 110 for automatically reducing the wiping speed of said wiper unit 50. The wiping speed is configured to be reduced by said means 110 so as to avoid staining of water by means of said wiper unit upon road users present in the surroundings of said vehicle. The means 110 for automatically reducing the wiping speed may comprise any suitable means for regulating the wiping speed of the wiper unit comprising reducing the wiping speed such as an electric motor.
The means 110 for reducing said wiping speed is according to an embodiment arranged to reduce the wiping speed to zero to avoid staining of water by means of said wiper unit upon road users present in the surroundings of said vehicle.
The means 110 for reducing said wiping speed is according to an 15 embodiment arranged to reduce the wiping speed to a wiping speed that avoids staining of water by means of said wiper unit upon road users present in the surroundings of said vehicle.
The system I comprises means 130 for determining whether the vehicle is at a standstill. The means 110 for automatically reducing said wiping speed is adapted to the vehicle being at a standstill. The vehicle thus needs to be at a standstill for the means 110 for reducing the wiping speed to be activated. Thus, the situation that the vehicle is at a standstill needs to be fulfilled in order to reduce the wiping speed to a wiping speed that avoids staining of water by means of said wiper unit upon road users present in the surroundings of said vehicle.
The system I comprises means 140 means for determining the presence of a potential passenger at a stop. The means 140 for determining the presence of a potential passenger at a stop is according to an embodiment comprised in the means 124 for determining road users present in the surroundings of 7 said vehicle. The means 140 for determining the presence of a potential passenger at a stop may comprise any suitable detection means for detecting passengers at a stop such as one or more camera units. The means 140 for determining the presence of a potential passenger at a stop comprises according to an embodiment means for establishing contact with the stop and/or passenger at the stop within a vehicle-to-infrastructure communication arrangement so as to determine a potential passenger at said stop.
The means 110 for automatically reducing said wiping speed so as to avoid staining of water is arranged to be activated when the vehicle has been brought to a standstill at such a stop when a potential passenger has been determined to be at the stop. The system I thus comprises means 110 for automatically reducing said wiping speed so as to avoid staining of water at such a stop.
The system I comprises means 150 for resetting the wiping speed of the windshield wiper unit 50 if it is determined that there is no longer a risk for staining. The means 150 for resetting the wiping speed is arranged to reset the wiping speed to the speed adapted to the rainfall for improving the visibility for the driver of the vehicle.
The means 150 for resetting the wiping speed of the windshield wiper unit 50 is configured to be activated when the vehicle is taking off or is about to take off, i.e. is starting or is about to start and thus change the situation from a standstill to a speed of the vehicle where the vehicle is moving.
The means 150 for resetting the wiping speed comprises according to an embodiment means 152 for determining whether the vehicle is taking off or is determined to take off. The means 152 for determining whether the vehicle is taking off or is about to take off may comprise any suitable detection means for detecting if brakes such as a parking brake, a bus stop brake or the like has been deactivated, if the transmission has changed to drive position, i.e. a 8 gear change for facilitating driving of the vehicle, if the gas pedal has been activated, if the speed of the vehicle has changed from standstill to a movement of the vehicle or the like.
The means 150 for resetting the wiping speed of the windshield wiper unit is according to an embodiment configured to be activated when it is determined that no road users are present in the surroundings of the vehicle.
The means 150 for resetting the wiping speed comprises or utilized the means 124 for determining road users present in the surroundings of said vehicle so as to determine whether there are any road users in the surroundings of said vehicle. If it is determined that there are no road users present in the surroundings of the vehicle, e.g. that road users that were present are no longer present, than the means 150 for resetting the wiping speed of the windshield wiper unit 50 may be activated so that the visibility for the driver may be improved event though the vehicle is not about to take off.
The system I comprises means 160 for informing the operator of the vehicle of the activation of reduction of wiping speed due to the risk of staining of water by means of said wiper unit upon road users present in the surroundings of said vehicle. Said means 160 for informing the operator comprises according to an embodiment a display unit for displaying said information. Said means 160 for informing the operator comprises according to an embodiment an acoustic unit for acoustically presenting said information.
The system I comprises according to an embodiment means 170 for manually overriding the automatic reduction of the wiping speed. The means 170 manually overriding the automatic reduction of the wiping speed comprises an actuator for the operator to override and hence deactivate the reduced wiping speed so as to improve visibility. Said actuator according to an embodiment is the actuator for controlling the wiping speed of the 9 windshield wiper unit. Said actuator according to an embodiment is a separate actuator for overriding the reduced wiping speed and hence reset the wiping speed of the windshield wiper unit to a wiping speed that provides satisfactory visibility. The operator may hereby from the means 160 receive information about a possible activation of reduction of the wiping speed and may manually override it.
The electronic control unit 100 is operatively connected to the means 110 for automatically reducing the wiping speed of said wiper unit via a link 10a. The electronic control unit 100 is via the link 10a arranged to send a signal to said means 110 representing data for automatically reducing the wiping speed of said wiper unit so as to avoid staining of water by means of said wiper unit.
The electronic control unit 100 is operatively connected to the means 120 for determining a potential risk for staining of water by means of said wiper unit upon road users present in the surroundings of said vehicle via a link 120a.
The electronic control unit 100 is via the link 120a arranged to receive a signal from said means 120 representing data for potential risk for staining of water by means of said wiper unit.
The electronic control unit 100 is operatively connected to the means 122 for determining whether a front entrance door is opened or is determined to be opened via a link 22. The electronic control unit 100 is via the link 22 arranged to receive a signal from said means 122 representing data for front entrance door opened or determined to be opened.
The electronic control unit 100 is operatively connected to the means 124 for determining the presence of a road user in the surroundings of said vehicle via a link 24. The electronic control unit 100 is via the link 24 arranged to receive a signal from said means 124 representing data for road users present in the surroundings of said vehicle.
The electronic control unit 100 is operatively connected to the means 130 for determining whether the vehicle is at a standstill vehicle via a link 30. The electronic control unit 100 is via the link 30 arranged to receive a signal from said means 130 representing data for standstill vehicle of the vehicle.
The electronic control unit 100 is operatively connected to the means 140 means for determining the presence of a potential passenger at a stop via a link 40. The electronic control unit 100 is via the link 40 arranged to receive a signal from said means 140 representing data for presence of a potential passenger at a stop.
The electronic control unit 100 is operatively connected to the means 150 for resetting the wiping speed of the windshield wiper unit if it is determined that there is no longer a risk for staining via a link 50a. The electronic control unit 100 is via the link 50a arranged to send a signal to said means 150 representing data for resetting the wiping speed of the windshield wiper unit.
The electronic control unit 100 is operatively connected to the means 152 for determining whether the vehicle is taking off or is about to take off via a link 52. The electronic control unit 100 is via the link 52 arranged to send a signal to said means 152 representing data for the vehicle taking off or is about to take off.
The means 110 for automatically reducing the wiping speed of the windshield wiper unit 50 is operatively connected to the windshield wiper unit 50 via a link 10b. The means 110 for reducing the wiping speed of the windshield wiper unit 50 is via the link 10b arranged to send a signal to said windshield wiper unit 50 representing data for reducing the wiping speed.
The means 150 for resetting the wiping speed of the windshield wiper unit 50 is operatively connected to the windshield wiper unit 50 via a link 50b. The means 150 for resetting the wiping speed of the windshield wiper unit 50 is via the link 50b arranged to send a signal to said windshield wiper unit 50 representing data for resetting the wiping speed. 11 The electronic control unit 100 is operatively connected to the windshield wiper unit 50 via a link 50c. The electronic control unit 100 is via the link 50c arranged to receive a signal from the windshield wiper unit 50 representing data for the wiping speed.
The electronic control unit 100 is operatively connected to the means 160 for informing the operator of the vehicle of the risk of staining of water by means of said wiper unit upon road users present in the surroundings of said vehicle via a link 60. The electronic control unit 100 is via the link 60 arranged to send a signal to said means 160 representing information data for informing the operator of the vehicle of the risk of staining of water by means of said wiper unit.
The electronic control unit 100 is operatively connected to the means 170 for manually overriding the automatic reduction of the wiping speed via a link 70. The electronic control unit 100 is via the link 70 arranged to send a signal to said means 170 representing data for overriding the automatic reduction of the wiping speed.
Fig. 3 schematically illustrates a block diagram of a method for controlling the windshield wiper unit of a vehicle.
According to the embodiment the method for controlling the windshield wiper unit of a vehicle comprises a step S1. In this step a potential risk for staining of water by means of said wiper unit upon road users present in the surroundings of said vehicle is determined.
According to the embodiment the method for controlling the windshield wiper unit of a vehicle comprises a step S2. In this step the wiping speed of said wiper unit is automatically reduced based on the determined potential risk.
The wiping speed is hereby reduced so as to avoid staining of water by means of said wiper unit upon road users present in the surroundings of said vehicle. 12 The step S2 of reducing said wiping speed is according to an embodiment effected when the vehicle comes to standstill.
The step S2 of reducing said wiping speed comprises according to an embodiment reducing said wiping speed to zero.
The step S1 of determining a potential risk for staining comprises the step of determining whether a front entrance door is opened or is determined to to be opened within a predetermined time.
The step S1 of determining a potential risk for staining comprises the step of determining the presence of a road user in the surroundings of said vehicle.
According to the embodiment the method for controlling the windshield wiper unit of a vehicle comprises the step of resetting the wiping speed of the windshield wiper unit if it is determined that there is no longer a risk for staining.
According to the embodiment the method for controlling the windshield wiper unit of a vehicle comprises the steps of: determining whether the vehicle is taking off or is determined to take off; and, based on a determined taking off of the vehicle, resetting the wiping speed of the windshield wiper unit.
With reference to figure 4, a diagram of an apparatus 500 is shown. The control unit 100 described with reference to fig. 2 may according to an embodiment comprise apparatus 500. Apparatus 500 comprises a nonvolatile memory 520, a data processing device 510 and a read/write memory 550. Non-volatile memory 520 has a first memory portion 530 wherein a computer program, such as an operating system, is stored for controlling the function of apparatus 500. Further, apparatus 500 comprises a bus controller, a serial communication port, 1/0-means, an AID-converter, a time date entry and transmission unit, an event counter and an interrupt controller (not shown). Non-volatile memory 520 also has a second memory portion 540. 13 A computer program P is provided comprising routines for controlling the windshield wiper unit of a vehicle. The program P comprises routines for determining a potential risk for staining of water by means of said wiper unit upon road users present in the surroundings of said vehicle. The program P comprises routines for automatically reducing the wiping speed of said wiper unit based on the determined potential risk. The routines for reducing said wiping speed is effected when the vehicle comes to standstill. The routines for reducing said wiping speed comprises reducing said wiping speed to zero. The routines for determining a potential risk for staining comprises determining whether a front entrance door is opened or is determined to be opened within a predetermined time. The routines for determining a potential risk for staining comprises determining the presence of a road user in the surroundings of said vehicle. The program P comprises according to an embodiment routines for resetting the wiping speed of the windshield wiper unit if it is determined that there is no longer a risk for staining. The program P comprises according to an embodiment routines for determining whether the vehicle is taking off or is determined to take off; and, based on a determined taking off of the vehicle, resetting the wiping speed of the windshield wiper unit. The computer program P may be stored in an executable manner or in a compressed condition in a separate memory 560 and/or in read/write memory 550.
When it is stated that data processing device 510 performs a certain function it should be understood that data processing device 510 performs a certain part of the program which is stored in separate memory 560, or a certain part 25 of the program which is stored in read/write memory 550.
Data processing device 510 may communicate with a data communications port 599 by means of a data bus 515. Non-volatile memory 520 is adapted for communication with data processing device 510 via a data bus 512. Separate memory 560 is adapted for communication with data processing device 510 via a data bus 511. Read/write memory 550 is adapted for 14 communication with data processing device 510 via a data bus 514. To the data communications port 599 e.g. the links connected to the control unit 100 may be connected.
When data is received on data port 599 it is temporarily stored in second 5 memory portion 540. When the received input data has been temporarily stored, data processing device 510 is set up to perform execution of code in a manner described above. The signals received on data port 599 can be used by apparatus 500 for determining a potential risk for staining of water by means of said wiper unit upon road users present in the surroundings of said 10 vehicle. The signals received on data port 599 can be used by apparatus 500 for automatically reducing the wiping speed of said wiper unit based on the determined potential risk. The signals received on data port 599 can be used by apparatus 500 for effecting the reduction of the wiping speed when the vehicle comes to standstill. The signals received on data port 599 can be used by apparatus 500 for reducing said wiping speed to zero. The signals received on data port 599 used by apparatus 500 for determining a potential risk for staining comprises according to an embodiment determining whether a front entrance door is opened or is determined to be opened within a predetermined time. The signals received on data port 599 used by apparatus 500 for determining a potential risk for staining comprises according to an embodiment determining the presence of a road user in the surroundings of said vehicle. The signals received on data port 599 can be used by apparatus 500 for resetting the wiping speed of the windshield wiper unit if it is determined that there is no longer a risk for staining. The signals received on data port 599 can be used by apparatus 500 for determining whether the vehicle is taking off or is determined to take off; and, based on a determined taking off of the vehicle, resetting the wiping speed of the windshield wiper unit.
Parts of the methods described herein can be performed by apparatus 500 30 by means of data processing device 510 running the program stored in separate memory 560 or read/write memory 550. When apparatus 500 runs the program, parts of the methods described herein are executed.
The foregoing description of the preferred embodiments of the present invention has been provided for the purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations will be apparent to practitioners skilled in the art. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, thereby enabling others skilled in the art to understand the invention for various embodiments and with the various modifications as are suited to the particular use contemplated. 16

Claims (17)

CLAIMS 1. A method for controlling the windshield wiper unit of a vehicle, characterized by the step of:
1. determining a potential risk for staining of water by means of said wiper unit upon road users (RU) present in the surroundings of said vehicle; 2. based on the determined potential risk, automatically reducing the wiping speed of said wiper unit.
2. A method according to claim 1, wherein the step of reducing said wiping speed is effected when the vehicle comes to a standstill.
3. A method according to claim 1 or 2, wherein the step of reducing the wiping speed comprises reducing said wiping speed to zero.
4. A method according to any preceding claims, wherein the step of determining a potential risk for staining comprises the step of determining whether a front entrance door is opened or is determined to be opened within a predetermined time.
5. A method according to any preceding claims, wherein the step of determining a potential risk for staining comprises the step of determining the presence of a road user in the surroundings of said vehicle.
6. A method according to any preceding claims, comprising the step of resetting the wiping speed of the windshield wiper unit if it is determined that there is no longer a risk for staining.
7. A method according to any preceding claims, comprising the steps of: determining whether the vehicle is taking off or is determined to take off; and, based on a determined taking off of the vehicle, resetting the wiping speed of the windshield wiper unit.
8. A system (I) for controlling the windshield wiper unit of a vehicle (1), characterized by means (120) for determining a potential risk for staining of 17 water by means of said wiper unit upon road users present in the surroundings of said vehicle; and means (110) for automatically reducing the wiping speed of said wiper unit (50) based on the determined potential risk.
9. A system according to claim 1, comprising means (120) for determining whether the vehicle is at a standstill, wherein the means (110) for reducing said wiping speed is arranged to effect the reduction when the vehicle comes to a standstill.
10. A system according to claim 7 or 8, wherein said means (110) for reducing said wiping speed is arranged to reduce the wiping speed to zero.
11. A system according to any of claims 7-10, wherein said means (120) for determining a potential risk for staining comprises means (122) for determining whether a front entrance door (la) is opened or is determined to be opened within a predetermined time.
12. A system according to any of claims 7-11, wherein said means (120) for 15 determining a potential risk for staining comprises means (124) for determining the presence of a road user in the surroundings of said vehicle.
13. A system according to any of claims 7-12, comprising means for resetting the wiping speed of the windshield wiper unit if it is determined that there is no longer a risk for staining.
14. A system according to any of claims 7-12, comprising the means (150) for determining whether the vehicle is taking off or is determined to take off; and means for resetting the wiping speed of the windshield wiper unit based on a determined taking off of the vehicle.
15. A vehicle (1) comprising a system (I) according to any of claims 7-13.
16. A computer program (P) for controlling the windshield wiper unit of a vehicle, said computer program (P) comprising program code which, when run on an electronic control unit (100) or another computer (500) connected 18 to the electronic control unit (100), causes the electr perform the steps according to claim 1-7.
17. A computer program product comprising a digital stoi the computer program according to claim 16.
SE1451487A 2014-12-05 2014-12-05 System for controlling the windshield wiper unit of a vehicle SE541196C2 (en)

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SE1451487A SE541196C2 (en) 2014-12-05 2014-12-05 System for controlling the windshield wiper unit of a vehicle

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SE1451487A1 true SE1451487A1 (en) 2016-06-06
SE541196C2 SE541196C2 (en) 2019-04-30

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SE1451487A SE541196C2 (en) 2014-12-05 2014-12-05 System for controlling the windshield wiper unit of a vehicle

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Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6822563B2 (en) * 1997-09-22 2004-11-23 Donnelly Corporation Vehicle imaging system with accessory control
JP2001301579A (en) * 2000-04-19 2001-10-31 Kanto Auto Works Ltd Rear wiper of back door
JP2010143499A (en) * 2008-12-22 2010-07-01 Mitsuba Corp Wiper control method and wiper control system

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