• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    "windshield cleaning device. the present invention relates to a windshield cleaning device (1), in particular for a motor vehicle comprising at least one drive device (2), which can be controlled by means of a control device (3), said control device (3) controls a power and torque requirement of the windshield cleaning device (1) depending on at least one or more parameters that influence the need for power and torque of the drive device (2). the invention is characterized by the fact that the control device () has at least parameters for determining the current position of the vehicle's engine, to reduce power and torque .
    公开号:BR112012015843B1
    申请号:R112012015843-0
    申请日:2010-11-04
    公开日:2020-09-01
    发明作者:Joachim Zimmer
    申请人:Robert Bosch Gmbh；
    IPC主号:
    专利说明:

    State of the art
    [001] The present invention relates to a windshield cleaning device, especially for a motor vehicle with at least one drive device, which can be controlled by means of a control device, the device being control controls a power and torque requirement of the windshield cleaning device depending on at least one or several parameters that influence the power and torque requirement of the drive device.
    [002] The determination of the construction size of the windshield wiper motor is currently carried out under consideration of a “Worstcase-Szcenarios11 (worst case scenario). For this purpose, all extreme situations to which a windshield cleaning device can be subjected, such as the drying windshield, the greatest support force of the windshield wiper arm on the windshield, can be assumed. breeze and maximum speed of movement, in order to guarantee the need for power and torque even when the most unfavorable environmental conditions coincide. The consequences of this are extremely strong motors in terms of torque, whose initial starting torque has to be adjusted with respect to the strength and dimensioning of the mechanical construction parts of the windshield wiper system.
    [003] Due to the large dimensioning that results from this, a motor of the windshield wiper of the windshield cleaning device and also of the external measures, the applicant's objective was to effect a precise adaptation of the motor torque under consideration of ambient conditions and, respectively, the signals available on the vehicle, from which the power and torque requirements of the windshield wiper system can be deducted at any time. Such an adaptation of the engine torque under some ambient conditions is suggested, for example, in document DE 10 2008 001 816 A1. This document provides a windshield cleaning device, which features one or more drive devices, which can be controlled using a control device. In this case, the control device is configured in such a way that it controls the power requirement of the windshield cleaning device depending on at least one or more parameters, which have an influence on the power requirement of the respective device. of the windshield cleaning device. In this case, the parameters comprise at least the speed of travel and / or the state of the windshield.
    [004] From the state of the art, according to DE 101 44 958, a process for controlling a windshield cleaning device is also known, in which the control device for controlling a driving device determines the supplied torque of the drive device depending on the transmission ratio of the windshield wiper rod system and, respectively, its rotation angle. In this case, the field of rotation angle of a motor crank of the windshield cleaning device is divided into several fields of the angle, to which each own maximum torque is allocated. In order to determine the required torque, the control device initially consults the respective parameters of various vehicle devices, such as the rain sensor, speedometer and the like, and allocates these to corresponding characteristic numbers in order to react accordingly. thereby to environmental conditions. However, under these conditions, a prospective adjustment of the required torque of the windshield wiper system is not possible, which may lead to the fact that the windshield cleaning device reacts relatively inert to parameters functional changes that change, especially ambient conditions.
    [005] Therefore, it is the objective of the present invention to provide a windshield cleaning device, which allows a more flexible reaction in relation to environmental parameters. Publication of the invention
    [006] This objective is solved according to the invention by the fact that for the reduction of power and torque, the control device comprises at least parameters for determining the current position of the vehicle. A vehicle position can be carried out, for example, with the aid of satellite signals, for example, a GPS. With the determination of the current position, it is possible to consult information regarding prevailing atmospheric conditions, such as precipitation or current temperature.
    [007] An advantageous embodiment of the present invention provides, for the determination of the current position of the motor vehicle or, however, also almost prospectively a future position of the motor vehicle, for example, for the determination of the environmental conditions prevailing there , consult the respective parameters of the vehicle position with a navigation system provided in the vehicle. For this, the control device can be coupled with the navigation system and prematurely provoke and modify, in the short term, a control of the characteristic field under consideration also of future environmental conditions.
    [008] An embodiment of the present invention provides that in one of the characteristic fields formed by the parameters to be received, the maximum permissible travel speed is considered. In many countries a country-specific maximum speed on highways and highways is legally fixed. By allocating the country-specific maximum speed, there can also be a reference point for the required maximum torque of the windshield wiper drive device.
    [009] In order to make available another possibility, which allows a control of the characteristic field under inclusion of the vehicle speed, then the control device can be coupled with a locomotion speed control device (Tempomat) provided in the motor vehicle. If the driver of the motor vehicle has entered a corresponding speed in the speed control device, then this speed can also be drawn on the need for power and torque of the windshield wiper and a control of the windshield can be started prematurely. characteristic field under consideration of future speed parameters.
    [0010] Another possibility of being able to consider the vehicle speed prospectively in the case of the control of the characteristic field exists due to the fact that the control device is coupled with a camera system provided in the vehicle. Depending on the position of the vehicle, the camera system can currently determine local speed limitations, in order to place these speed limitations for the transmission of parameters related to locomotion speed. Of course, it is also possible to consult this information from a vehicle's navigation system, as long as it can make available information regarding speed limitations.
    [0011] To ascertain the resistance that faces the wiper blades, a fact which is associated at the same time with an increased need for power and torque of the drive device, in an example of the present invention, the following can be considered: condition of the vehicle's windshield by means of at least one rain sensor in the control of the characteristic field to determine the number of revolutions of the windshield wiper drive device.
    [0012] In a preferred embodiment of the invention, parameters can be determined, which have an influence on the power requirement of the respective windshield wiper drive device, the angle of the wiper lever, the direction of the cleaning movement, that is, an up and down movement, respectively, of the wiper levers on the front windshield, a transmission ratio of a system of rods of the wiper levers of the windshield wiper. windshield and / or windshield wiper speed. In this way, the allocation of power to the drive device can be further improved and differentiated, respectively.
    [0013] In the case of windshield wiper motors, the transmission ratio can be additionally considered with a system of rod rods of the windshield wiper while it ceases to exist in the case of windshield wiper motors with a direct drive of the windshield wiper motor (WDA).
    [0014] The combination of determining the speed of locomotion of the windshield state, already in advance for a few seconds, allows the power of the respective drive unit to be determined and adjusted in a flexible and prospective way, depending on a speed of predetermined locomotion and a cleaning movement, that is, an upward movement of the windshield wiper and / or a downward movement of the windshield wiper. To do this, one or more characteristic fields can be stored, for example, in a memory device of the control device, and can be called up via the control device. In this case, the control device can be part of the engine management or part of the windshield cleaning device, for example, coupled with the engine management.
    [0015] A process according to the invention for the electronically controlled limitation of a power and torque moment of a windshield cleaning device, especially for a motor vehicle, which can be controlled by means of a control device , which controls a power and torque requirement of the windshield cleaning device, depending on one or more parameters, parameters that influence the power requirement of the drive device, comprising the steps: - determination of one or more various parameters, the parameters comprising at least the current position of the vehicle and / or the maximum permissible and / or adjustable travel speed by means of a speed control device; and; - control of the power and torque requirements of the windshield cleaning device depending on the respective parameters.
    [0016] In an example of carrying out the process according to the invention, for controlling the characteristic field, parameters like an angle of the wiper lever, a direction of the cleaning movement, a gear ratio of a rod system windshield wiper levers of the windshield wiper, a speed of the windshield wiper, a transmission of a drive rod system, an external temperature and / or a windshield state.
    [0017] With respect to other advantageous embodiments of the present invention reference is made to the dependent claims as well as to the drawings explained in more detail below. Brief Description of Drawings
    [0018] Show:
    [0019] appears: a schematic representation of a diagram for the control of a drive device for a windshield cleaning device, according to the invention;
    [0020] figure 2: a diagram showing the evolution of the resistance force depending on the speed of the vehicle; and
    [0021] figure 3: a diagram, in which another example is shown for a reduction in the power of the drive device depending on the speed of the vehicle. Execution example
    [0022] Figure 1 shows a schematic representation of a flowchart for the processing of signals of position information and speed limitations, and a subsequent calculation and adjustment of the power and its torque moment of the motor, respectively, in a device windshield cleaner 1 according to the invention.
    [0023] For this purpose, the windshield cleaning device 1 according to the invention, for a motor vehicle, has a drive device 2, which can be controlled by means of a control device 3, the device being control unit 3, controls the power and torque requirements of the windshield cleaning device 1, depending on several parameters that influence the power and torque requirements of the drive device 2. Here two of the parameters are characterized by location 4 and speed limitation (Speedlimit) 5 and thus take into account the current position of the vehicle as well as the locally assigned speed limitations. In the execution example shown, on an on-board electrical network 6, signals with respect to position 6a and speed 6b can be observed. Among other signals, signals of this kind that result from the environment can be received, such as temperature in the environment, air humidity, rain or snow probability and the like.
    [0024] The information flow when using the signals referring to location 4 and speed limitation 5 are relayed from an on-board electrical network 6 to the control unit 3 and the control electronics 7, respectively, integrated in the drive device 2 of the windshield cleaning device 1 and there are processed in order to calculate the corresponding power requirement.
    [0025] In this case, the diagram according to figure 1 shows the control of the drive device 2, the windshield cleaning device 1, according to a first embodiment of the invention. For this purpose, the parameters of environmental conditions and the maximum permissible travel speed are initially determined depending on the position of the vehicle. At the same time, the position data, determined here by means of a GPS signal by means of a navigation system, are coupled with weather forecast data, thus, even before the vehicle reaches the position, it can be consulted in advance in a very easy way. the environmental conditions that can be expected, for example, due to meteorological forecasts, such as rain, snow and temperatures, and can be correspondingly used to control the characteristic field.
    [0026] The local speed limitations are detected, on the one hand, by means of a camera system installed in the vehicle body, which is able to detect speed limitation signs located on the shoulder and thus detect the maximum reigning speed. For this purpose, the control device 4 is coupled with the camera system.
    [0027] Another possibility for the detection of early speed is offered through a coupling in the control device, with a locomotion speed control device installed in the motor vehicle, which allows to evaluate the maximum speed that is expected to be adjusted by the user until the vehicle user turns off the travel speed control device or adjust the maximum speed set up or down.
    [0028] The signals provided by the on-board electrical network 6, are then transmitted to the control device 3. In the control device 3, the control electronics 7 is arranged, which receives information from the drive device 2 regarding the loads that act on the windshield cleaning device 1, especially the moment of power and torque, respectively, currently adjusted. This torque value is compared with a value found in the control of characteristic numbers and in the event of a divergence of both values, a torque adaptation is made, that is, the torque is increased or lowered, respectively, according to the result of the control of characteristic numbers.
    [0029] Figure 2 shows the path of a wind resistance force along the locomotion speed from 0 km / h to 180 km / h. In this case, two paths are shown, once for the driver side 8 and once for the hitchhiker side 9. In the diagram it can be seen that with increasing inflow speed with which a vehicle is inflated, the resistance force clearly increases To the wind. Therefore, the faster a vehicle travels, the higher the inflow speed as well as the wind resistance force, which acts on the windshield wiper system and to which the cleaning device must react. windshield 1, for example, when cleaning down.
    [0030] The difference between the power requirement of the windshield cleaning device 1, when an up and down movement of a windshield cleaning device cleaner lever respectively, for a direct drive of the wiper of the WDA windshield, is shown in figure 3. Here is shown a diagram with characteristic lines for a reduction of the power and torque of the drive device depending on the speed of the vehicle for an up and down movement of the wiper device the windshield. In addition, a curve is drawn for the air resistance force. As a result, with a wiper lever angle of 0-45 °, the air resistance force gradually increases and additionally supports the wiper lever when moving the windshield wiper upwards. The power requirement when cleaning upwards is also shown correspondingly, as shown in figure 3, which, for example, in a 0-45 ° field is reduced only slowly from 100% to a certain maximum value. On the other hand, for example, for a field from 30 °, the power requirement is lowered, according to figure 3, to a certain final value.
    权利要求:
    Claims (11)
    [0001]
    1. Windshield cleaning device (1), especially for a motor vehicle with at least one drive device (2), which can be controlled by means of a control device (3), the device of which control (3) controls the power and torque requirements of the windshield cleaning device (1) depending on at least one or more parameters that influence the power and torque requirements of the drive device (2), characterized by the fact that the control device (3) for the reduction of power and torque comprises at least parameters for determining the current position (6a) and speed (6b) of the motor vehicle.
    [0002]
    2. Windshield cleaning device (1), according to claim 1, characterized by the fact that the position determination occurs with the aid of satellite signals, especially a GPS.
    [0003]
    3. Windshield cleaning device (1), according to claim 1 or 2, characterized by the fact that the control device (3) for determining the vehicle's position parameters is coupled with a GPS provided for in motor vehicle, especially a navigation system.
    [0004]
    4. Windshield cleaning device (1) according to any one of the preceding claims, characterized by the fact that the parameters comprise at least the maximum permissible travel speed.
    [0005]
    5. Windshield cleaning device (1) according to any one of the preceding claims, characterized by the fact that the control device (3) for determining the locomotion speed parameter is coupled with a control device the locomotion speed (Tempomat) predicted in the motor vehicle.
    [0006]
    6. Windshield cleaning device (1), according to any of the preceding claims, characterized by the fact that the control device (3) is coupled with a camera system provided in the vehicle, which, depending on the vehicle position, determines local speed limitations, and the local speed limitation can be used for the transmission of the locomotion speed parameter.
    [0007]
    7. Windshield cleaning device (1) according to any one of the preceding claims, characterized by the fact that, for determining the ambient conditions and / or a condition of the vehicle's windshield, it presents at least least one rain sensor.
    [0008]
    8. Windshield cleaning device (1), according to any of the previous claims, characterized by the fact that the parameters consider the angle of the wiper lever, the direction of the cleaning movement, a gear ratio of a windshield wiper lever rod system and / or windshield wiper speed.
    [0009]
    9. Windshield cleaning device (1) according to any one of the preceding claims, characterized by the fact that the adjustment of power and torque considers an upward movement of the windshield wiper and / or a movement under the windshield wiper, at least one or more characteristic fields can be called up by the control device (3) to determine the required power and torque moment.
    [0010]
    10. Process for electronically controlled limitation of a power and torque moment of a windshield cleaning device (1), especially for a motor vehicle, characterized by the fact that the windshield cleaning device (1) can be controlled via a control device (3), which controls the power and torque requirements of the windshield cleaning device (1), depending on at least one or more parameters, parameters that influence the power requirement of the drive device (2), comprising the steps: - determination of several parameters, the parameters comprising at least the current position of the vehicle and the speed of the vehicle, the speed of the vehicle being especially the speed of maximum permissible and / or adjustable locomotion by means of a locomotion speed control device (Tempopat), and - control of the power and torque requirements of the pair cleaning device windshield (1) depending on the respective parameters.
    [0011]
    11. Process, according to claim 10, characterized by the fact that, as parameters, they are considered an angle of the wiper lever, a direction of the cleaning movement, a transmission ratio of a system of rods of the levers of the wiper windshield cleaning device windshield, windshield wiper speed, transmission of a drive rod system, external temperature and / or windshield status.
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    同族专利:
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    BR112012015843A2|2016-06-21|
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    BR112012015843A8|2017-10-17|
    US20130018546A1|2013-01-17|
    KR20120109535A|2012-10-08|
    DE102009055399A1|2011-07-07|
    WO2011079990A1|2011-07-07|
    US8909421B2|2014-12-09|
    KR101782805B1|2017-09-28|
    EP2519427B1|2013-10-09|
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    CN102666218B|2016-03-30|
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    法律状态:
    2019-01-08| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2019-10-01| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2020-06-02| B09A| Decision: intention to grant|
    2020-09-01| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 04/11/2010, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102009055399A|DE102009055399A1|2009-12-30|2009-12-30|Windshield wiper device|
    DE102009055399.1|2009-12-30|
    PCT/EP2010/066807|WO2011079990A1|2009-12-30|2010-11-04|Windshield wiping device|
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