• 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:
    The present invention relates to a device, a method and a motor vehicle comprising said device and/or method for belt tightener activation in a vehicle in rollover accidents. The device according to the present invention comprises a device for activating at least one belt tightener (102) in a safety belt system (101) in a vehicle(100), such that said vehicle (100) comprises at least one sensor element (103) to monitor and transmit data (104) containing information about the drivability of a region (108) in front of the vehicle to a calculation unit (105) situated in the vehicle (100), the vehicle comprises at least one tilt sensor (106) to receive and send data containing information about the vehicle's lateral tilt (107) to the calculation unit (105), and the calculation unit (105) is adapted to send a signal to the safety belt system (101) to activate the belt tightener (102) when the vehicle's angle of lateral tilt (107) exceeds a predetermined value (a, b). A distinguishing aspect of the invention is that said predetermined value (a, b) is represented by a first value (a) if said drivability data indicate no increased rollover risk to the vehicle (100) and by a second value (b) if said drivability data indicate an increased rollover risk to the vehicle, the second value (b) being smaller than the first value (a).
    公开号:SE1150387A1
    申请号:SE1150387
    申请日:2011-05-04
    公开日:2012-11-05
    发明作者:Fredrich Claezon；Peter Kollegger
    申请人:Scania Cv Ab；
    IPC主号:
    专利说明:

    Summary of the Invention The above object is achieved by the invention as defined by the independent claims. Preferred embodiments are defined by the dependent claims.
    The invention thus comprises a device, a method and a motor vehicle comprising said device and / or method for activating extruders in a vehicle in connection with rollover accidents. The device according to the present invention consists of a seat belt system in a device for activating at least one bit extender in a vehicle, said vehicle comprising at least one sensor element for sensing and sending data including information about the drivability of an area in front of the vehicle seen in the direction of travel of the vehicle. calculating unit, the vehicle comprising at least one inclination sensor for receiving and sending data including lateral inclination of the vehicle to the calculating unit, wherein the calculating unit is arranged to send a signal to the seat belt system to activate the belt tensioner when the lateral inclination angle of the vehicle. Such an apparatus and method is described in US 6758495 B2. Characteristic of the invention according to claims 1 and 8 is that said predetermined value constitutes a first value if said drivability indicates a non-increased rollover risk for the vehicle and that said predetermined value consists of a second value if said drivability data indicates an increased rollover risk for the vehicle, where it the second value is less than the first value.
    This specifies the conditions for how much the vehicle should be allowed to tilt before the belt tensioner is activated.
    For a passenger car, it is possible at an earlier stage to detect that the passenger car will overturn compared to a heavy vehicle. An imminent rollover for a car can sometimes be ascertained even before one of the car's wheels has left the ground. Vehicles with a body that has a relatively large travel distance (tilting ability) relative to the chassis that carries the wheel axles, such as a truck or a bus, can, however, have a significant lateral acceleration in the body and also a large angle of inclination without there being any risk of the vehicle tipping over. . Therefore, in order not to risk activating the vehicle's extender at a normal curve, the threshold value of the vehicle's inclination for activating the vehicle's belt extender must be set to a relatively large angle. By having a first and a second angle together with driveability data, the belt tensioner does not risk being activated too late. If this were to happen, the driver may have slipped out of position in the belt long before the criterion for activating the belt tensioner is met. The driver thus risks being damaged by, for example, the vehicle's interior or side airbag.
    According to an embodiment of the present invention, the sensor element consists of a GPS unit or equivalent. In that case, parameters such as the width of the road and / or the calculation unit. The embodiment entails a reduced processor load of inclination from map data to be used as suitable data for the calculation unit and also possibilities to manually provide certain road sections with information about the vehicle's risk of tipping over.
    According to an embodiment of the present invention, the risk of overturning the vehicle is assumed to be higher when deviating from a lane on a narrow road without a wall branch compared to a wide road with a wall branch. The definition of a narrow road can be, for example, a road where the width of the road is less than 1.5 times the width of the vehicle.
    According to an embodiment of the present invention, the risk of overturning of the vehicle is assumed to be higher when deviating from a lane when driving on a hilly road and / or when the area next to the road is hilly compared to a flat area. The definition of hilly road and / or hilly area can be, for example, if any ground area within a distance of 10 meters from the vehicle includes height data that deviates more than 1 meter from the height data of the vehicle. Altitude data means a vertical distance to sea level.
    Through these two latter embodiments, a device and method for activating belt tensioners is obtained which is simple and inexpensive to apply in existing vehicles equipped with a tilt sensor and GPS unit.
    Brief Description of the Figures Figure 1 schematically shows a vehicle (100) according to the present invention.
    Figures 2 and 3 schematically show a vehicle (100) according to the present invention seen from above. Figures 4-6 schematically show a vehicle (100) according to the present invention seen from the front.
    Detailed Description of Preferred Embodiments of the Invention The invention will now be described in more detail with reference to Figures 1-6.
    Figure 1 schematically shows a vehicle (100) comprising at least one seat belt system (101). The seat belt system (101) comprises at least one belt tensioner (102) which can be activated by the seat belt system (101).
    The belt tensioner (102) is intended to tighten the belt around the driver to minimize damage to the driver in a hazardous situation. Furthermore, the vehicle (100) comprises at least one sensor element (103). The sensor element (103) may be one or more preferably forward-facing cameras attached to the vehicle (100), advantageously in the front part of the vehicle.
    The sensor element (103) can also be a GPS unit or equivalent. The GPS unit then of course does not have to be arranged in the front part of the vehicle.
    The sensor element (103) is arranged to obtain information (104) about the drivability of a relative area of the vehicle (100) in front of the area and send the information (104), preferably via signal transmitting lines, to a calculation unit (105) arranged in the vehicle (100). The calculation unit (105) is in turn in signal connection with the vehicle's seat belt system (101) (101). The calculation unit (105) may be separated from, or part of, the seat belt system (101). Furthermore, the vehicle (100) is also provided with at least one inclination sensor (106) which is arranged to detect an angle (107) of the actual lateral inclination of the vehicle (100).
    The inclination sensor (106) is arranged to send information about the detected angle (107) of the vehicle to the calculation unit (105).
    Figure 2 shows a situation with the vehicle (100) seen from above when driving on a road. In this case, the sensor element (103) consists of a forward-facing camera (103), in English Fon / vard Looking Camera, attached to the front of the vehicle (100). The camera (103) collects data (104) from a front area (108), here illustrated as a triangular sector in front of the vehicle (100), and sends this data (104), preferably via wires, to the vehicle calculation unit (105). In the situation illustrated in Figure 2, the vehicle (100) is about to deviate from a lane (109).
    Outside the lane (109) there is an area (110) which in this case is probably drivable because it consists of a wall branch. Using the computing unit (105) image processing of collected data (104) from the area (108) in front of the vehicle (100), which data (104) is collected by the camera (103) and transmitted to the computing unit (105), it can usually be determined whether the area (110) is of essentially the same nature as the area (109) and thus also drivable. For example, the computing unit (105) may determine that the area (109) and the area (110) have substantially the same color and thus conclude that the area (109) and the area (110) have the same drivability. The image processing of the data (104) can be performed either by a calculation unit (105) integrated in the camera (103) or by a separate calculation unit (105) and use parameters such as color and / or reflections of / from the area (108) to estimate its nature. and driveability. Since the area (110) is estimated to be drivable, the calculation unit (105) can send a signal (101). The seat belt system (101) must activate the belt tensioner (102) when the value first value (a).
    Figure 3 shows a situation with the vehicle (100) seen from above when driving on a road similar to the situation illustrated in figure 2 but where the area (110) is judged to be not drivable. For example, the computing unit (105) may determine that the area (109) and the area (110) have a different color and thus conclude that the area (110) has a poorer driveability than the area (109). There is thus an increased risk that the Vehicle (100) calculation unit (105) may therefore send a signal to the seat belt system (101). value (b), where the second value (b) is less than the first value the vehicle (100) is to overturn when driving in the area (110). including directives to activate (a). In a rollover process in the situation illustrated in Figure 3, the belt tensioner (102) will thus be activated and fix the driver to the seat at an earlier stage of the rollover process since the probability of the vehicle (100) overturning is judged to be higher compared to the situation illustrated in Figure 2. The criterion for triggering any of the vehicle's (100) airbags does not need to be changed as an airbag is normally fast enough to be deployed before the vehicle strikes the ground. Figure 4 shows a vehicle (100) according to the present invention seen from the front. The angle of inclination (107) of the vehicle (100) is preferably defined as the angle between a first line (111) and a second line (112) where the first line (111) is parallel to a normal from a surface parallel to sea level and the second line is perpendicular. against a line parallel to a line between the front wheel pairs of the vehicle and where the second line (112) also extends in a vertical plane through the front wheel axle of the vehicle. In the situation illustrated in Figure 4, the angle of inclination (107) of the vehicle (100) is substantially 0 degrees and thus the first line (111) and the second line (112) coincide. The first angle (a) is intended to illustrate the angle of inclination (107) of the vehicle (100) for activating the belt tensioner (102) of the vehicle (100) when the risk of overturning of the vehicle (100) is judged to be low, as for example illustrated in Figure 2. the situation. The second angle (b) is intended to illustrate the angle of inclination (107) of the vehicle (100) for activating the belt tensioner (102) of the vehicle (100) when the risk of overturning of the vehicle (100) is judged to be high, as for example in the case illustrated in Figure 3. the situation.
    The second angle (b) is smaller than the first angle (a).
    Figure 5 shows a vehicle (100) according to the present invention where the angle of inclination (107) of the vehicle (100) corresponds to a first angle (a) which is greater than a second angle (b). Figure 5 shows the first line (111) and the second line (112) more clearly. When the vehicle (100) travels in an area where the risk of the vehicle (100) tipping over is judged to be low, the belt tensioner (102) of the vehicle (100) is activated only when the angle of inclination (107) of the vehicle (100) corresponds to this first angle (a).
    Figure 6 shows a vehicle (100) according to the present invention where the angle of inclination (107) of the vehicle (100) corresponds to a second angle (b) which is smaller than a second angle (a). When the vehicle (100) travels in an area where the risk of overturning of the vehicle (100) is judged to be high, the belt tensioner (102) of the vehicle (100) is activated already when the angle of inclination (107) of the vehicle (100) corresponds to this second angle (b).
    In the description, a device and method for belt tensioners for a driver of the vehicle have been described. In addition to the driver, the method and device are of course also applicable to all possible passengers in the vehicle, especially if the vehicle is a bus.
    The above description is primarily intended to facilitate the understanding of the invention and is of course not limited to the stated embodiments, but also other variants of the invention are possible and conceivable within the scope of the inventive concept and the scope of subsequent claims.
    权利要求:
    Claims (15)
    [1]
    A device for activating at least one belt tensioner (102) in a seat belt system (101) in a vehicle (100), said vehicle (100) comprising at least one sensor element (103) for sensing and sending data (104) comprising information on the drivability of an area (108) in front of the vehicle (100) seen in the direction of travel of the vehicle (100) to a calculation unit (105) arranged in the vehicle (100), the vehicle (100) comprising at least one inclination sensor (106) for receiving and sending in laterally (107) to the calculation unit (105), where the calculation unit (105) is arranged to send a data including information about the inclination of the vehicle (100) to the seat belt system (101) to activate the belt tensioner (102) when the inclination angle (107) of the vehicle (100) ) laterally exceeds a predetermined value, characterized by: - that said predetermined value consists of a first value (a) if said data (104) indicates a non-increased rollover risk for the vehicle (100), - that said predetermined value constitutes a second value (b) if said data (104) indicates an increased risk of overturning of the vehicle (100), - that the second value (b) is less than the first value (a).
    [2]
    Device according to claim 1, characterized in that the sensor element (103) consists of at least one forward-facing camera attached to the vehicle (100) and wherein the calculation unit (105) is arranged to detect an increased risk of overturning of the vehicle (100) by image processing of said data (104) from the camera.
    [3]
    Device according to claim 2, characterized in that said image processing of said data (104) comprises color comparisons.
    [4]
    Device according to claim 2 or 3, characterized in that said image processing of said data (104) comprises reflection comparisons.
    [5]
    Device according to claim 1, characterized in that the sensor element (103) consists of at least one GPS unit and wherein the calculation unit (105) is arranged to detect an increased risk of overturning of the vehicle (100) by processing map data received by said at least one GPS device. 10 15 20 25 30
    [6]
    Device according to claim 5, characterized in that the calculation unit (105) is arranged to detect an increased risk of overturning of the vehicle (100) when driving on a narrow road and / or a road without a branch.
    [7]
    Device according to claim 5 or 6, characterized in that the calculation unit (105) is arranged to detect an increased risk of overturning of the vehicle (100) when driving on a hilly road and / or when the area next to the road is hilly.
    [8]
    A method of activating at least one belt tensioner (102) in a seat belt system (101) in a vehicle (100), the vehicle (100) comprising at least one sensor element (103) for receiving and sending data (104) including information on drivability for an area (108) in front of the vehicle (100) seen in the direction of travel of the vehicle (100) to a calculation unit (105) arranged in the vehicle (100), the vehicle (100) comprising at least one inclination sensor (106) for receiving and sending data comprising information on the lateral inclination of the vehicle (100) to the calculation unit (105), said method comprising the steps of: - the calculation unit (105) sending a signal to the seat belt system (101) to activate the belt tensioner (102) when the vehicle (100) lateral inclination (107) exceeds a predetermined value, characterized by: - that said predetermined value consists of a first value (a) if said data (104) indicates a non-increased risk of overturning of the vehicle (100), - that said predetermined determined value consists of a second value (b) if said data (104) indicates an increased risk of overturning of the vehicle (100), - that the second value (b) is less than the first value (a).
    [9]
    Method according to claim 8, wherein the sensor element (103) consists of at least one forward-facing camera attached to the vehicle (100), characterized by the further step: - that the calculation unit (105) detects an increased risk of overturning of the vehicle (100) by image processing of said data (104) from the camera.
    [10]
    Device according to claim 9, characterized in that said image processing of said data (104) comprises color comparisons. 10 15 20 10
    [11]
    Device according to claim 8 or 9, characterized in that said image processing of said data (104) comprises reflection comparisons.
    [12]
    Method according to claim 8, wherein the sensor element (103) consists of at least one GPS unit characterized by the further step: - that the calculation unit (105) detects an increased risk of overturning of the vehicle (100) by processing map data received by said at least a GPS device.
    [13]
    Method according to claim 12, characterized by the further step: - that the calculation unit (105) detects an increased risk of overturning of the vehicle (100) when driving on a narrow road and / or a road without a branch.
    [14]
    Method according to claim 12 or 13, characterized by the further step: - that the calculation unit (105) detects an increased risk of overturning of the vehicle (100) when driving on a hilly road and / or when the area next to the road is hilly.
    [15]
    Motor vehicle, preferably a heavy vehicle, characterized in that it comprises a device or a method according to any one of the preceding claims.
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    同族专利:
    公开号 | 公开日
    BR102012009759A2|2016-03-08|
    SE535828C2|2013-01-08|
    EP2520472B1|2016-01-13|
    EP2520472A2|2012-11-07|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE10005010C2|2000-02-04|2002-11-21|Daimler Chrysler Ag|Method and safety restraint for restraining an occupant in a vehicle seat|
    US6452487B1|2000-02-14|2002-09-17|Stanley Krupinski|System and method for warning of a tip over condition in a tractor trailer or tanker|
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    DE102017011827A1|2017-12-21|2019-06-27|Daimler Ag|Method for operating an occupant protection device|
    法律状态:
    优先权:
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    SE1150387A|SE535828C2|2011-05-04|2011-05-04|Device and method for activating belt tensioners|SE1150387A| SE535828C2|2011-05-04|2011-05-04|Device and method for activating belt tensioners|
    BR102012009759A| BR102012009759A2|2011-05-04|2012-04-26|device and method for belt tensioner activation|
    EP12165658.1A| EP2520472B1|2011-05-04|2012-04-26|Device and method for belt tightener activation|
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