• 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:
    Summary The invention relates to a method for a vehicle 1 comprising collecting current information about the vehicle's relation to the environment with the aid of sensor systems on the vehicle 1, 5 determining whether an accident is imminent, with the aid of the collected information about the vehicle and generating and transmitting an alarm signal comprising a first signal packet sl if it is determined that an accident is imminent, which first signal packet includes information about the vehicle's identity, position and current time ti. Furthermore, the alarm signal is adapted to be transmitted before the accident may occur. The invention relates to a system for a vehicle 1 comprising a sensor system on the vehicle 1 for collecting current information about the vehicle's relation to the environment. The system also comprises a calculating unit 3 and an alarm unit 5.
    公开号:SE1051311A1
    申请号:SE1051311
    申请日:2010-12-13
    公开日:2012-06-14
    发明作者:Fredrich Claezon；Mikael Lindberg；Peter Kollegger
    申请人:Scania Cv Ab；
    IPC主号:
    专利说明:

    Title Field of the Invention The present invention relates to a method and system for a vehicle according to the preambles of the independent claims.
    Background of the invention In vehicles today, several different types of sensors and several different systems are used to provide information about the vehicle's behavior to the environment. There are, for example, both radar and lidar sensors which, by sending radar waves or invisible light, can determine how far away a formal dr. A stand-alone camera or a camera in combination with sensors can also be used, and for a more accurate calculation, two cameras can be used. In order to be able to assess whether the object in the vicinity of the vehicle is alive, for example IR cameras can be used. For example, cameras are used in so-called corphal guard systems, LDW (Lane Departure Warning) systems that detect corphal lines and must keep track so that the vehicle does not detach from them.
    Furthermore, sensor systems and methods are used in vehicles to be able to determine whether the vehicle has collided or not. Airbag sensors consist of accelerometers which, together with logic, raise the airbag and bolt tensioner. Sensors to detect if the vehicle may roll over (so-called roll over sensors) can detect if the vehicle has selected or is about to roll over. This system is used, for example, to release a side airbag. In addition, there is logic that uses electronic stability control, ESP or ABS to be able to brake the vehicle and clamed to prevent an accident.
    WO2006 / 128502 relates to a method for a vehicle to detect an impending accident with a vehicle in front. The method uses the vehicle's sensor system to predict a possible accident and can also send a warning to the driver of the vehicle. The method includes an evaluation of the age of the vehicle in front in relation to the track profile on which the Urban vehicle is running.
    In connection with an accident, there is a great risk that any part of or an entire sensor system and / or the vehicle's communication system fails or does not work properly, which can result in an alarm center not being able to receive information about the vehicle and its position.
    The object of the present invention is to provide an improved alarm system in the situation when the vehicle's sensor system and / or communication system has ceased to function.
    SUMMARY OF THE INVENTION The above objects are achieved by the invention defined by the independent claims.
    Preferred embodiments are defined by the dependent claims.
    According to a first aspect, the invention relates to a method for a vehicle comprising collecting current information about the vehicle's relation to the environment with the aid of sensor systems on the vehicle, determining whether an accident is imminent, with the aid of the collected information about the vehicle, and generating and sending a an alarm signal comprising a first signal packet if it is determined that an accident is imminent, which first signal packet includes information about the vehicle's identity, position and current time. Furthermore, the alarm signal is adapted to be transmitted before the accident may occur.
    By determining whether an accident is imminent for a vehicle and sending an alarm signal comprising a first signal packet to the alarm center, it is ensured that information about the vehicle is received by the alarm center.
    According to a second aspect, the invention relates to a system for a vehicle comprising a sensor system on the vehicle for collecting current information about the vehicle's attachment to the environment. The system comprises a calculating unit adapted to determine with the aid of the collected information about the vehicle if an accident is occurring and an alarm unit adapted to generate and send an alarm signal comprising a first signal packet, which includes information about the vehicle's identity, position and current time. Furthermore, the alarm signal is adapted to be transmitted before the accident may occur.
    Brief description in g Figure Fig. 1a-b shows a possible first scenario in the event of an imminent accident, where an accident occurs and a confirmation message is sent, Figure 2a-b shows a possible second scenario in the event of an imminent accident, where an accident occurs, but where no confirmation message is sent, Figure 3a-b shows a possible third scenario in the event of an imminent accident, where an accident does not occur and a denial message is sent, Figure 4 is a river diagram showing a method for a vehicle, Figure is a river diagram showing the conditions in one embodiment of a method a vehicle is fitted, and Figure 6 shows the components of a vehicle system.
    Detailed Description of Preferred Embodiments of the Invention Figure 1a shows a possible first scenario in the event of an imminent accident with a repair object 2 in which a vehicle 1 sends a first signal packet s1 with the information about the vehicle. Figure 1b then shows that an accident occurs and a confirmation message skK is sent from a control unit 6 in the vehicle 1.
    Figure 2a shows a possible second scenario in the event of an imminent accident where a vehicle 1 sends a first signal packet sl with the information about the vehicle. Figure 2b then shows that an accident occurs, but that a confirmation message is not sent. The reason why the confirmation message is not sent may, for example, be that the control unit 6 which sends this message has failed. Another reason why no confirmation message is sent may be that the sensor system in the vehicle that collects the underlying data causes the control unit to create a control signal, so-called does not work correctly after the accident.
    Figure 3a shows a possible third scenario in the event of an imminent accident where a vehicle 1 sends a first signal packet sl with the information about the vehicle. Figure 3b then shows that an accident does not occur and clamed sends the control unit 6 a denial message skp.
    As shown in Figure 4, the invention relates to a method for a vehicle 1 comprising (11) collecting current information about the vehicle's relationship to the environment by means of sensor systems on the vehicle 1, determining if an accident is imminent, with the aid of the collected information about the vehicle , and generating and transmitting an alarm signal comprising a first signal packet s1 depending on the result of the comparison, which first signal packet comprises information about the vehicle's identity, position and current time t1. Furthermore, the alarm signal is adapted to be transmitted before the accident may occur. As stated in step (11), current information about the vehicle's relationship to the environment is collected, this information includes the vehicle's movement in relation to the environment and information about the environment, such as road information, road teams, calves, other cars, unprotected road users, etc.
    The method comprises performing step (12) by calculating the probability of an accident occurring, using the information collected about the vehicle, and comparing the estimated probability of an accident with a certain threshold value Xtroskeleton.
    The value of the probability of an accident that is imminent is between 0 and 1, where 0 means that there is no risk of an accident occurring and 1 meant that an accident will occur. The parameters used in the current information about the vehicle's relation to the environment mentioned above are used to calculate the probability that an accident is imminent. For example, when the vehicle has a high speed in one hall and travels on the same track as another vehicle with a speed in the other hall and that the distance between these two cars is short, the probability of an accident is imminent 1. In another situation If the vehicle is on the road in the same hall as a forward stationary form and when the distance to the stationary vehicle is large, the probability of an accident will be set below 0.5.
    The determined threshold value Xtroskei is installable and is usually salted to 0.5, but depending on various factors such as wave conditions, the reliability of the sensor systems or the like, this value can be set higher or lower. For example, if the rock layer is slippery, the threshold value is set lower than 0.5.
    Furthermore, the method of calculating the time of accident includes the possible imminent accident. To then, with the help of the calculated time of accident, calculate the probability of an accident before the accident occurs. In addition, the method of transmitting the first signal packet sl with the information about the vehicle comprises at least a predetermined time period T1 before the calculated time of accident for the possible imminent accident.
    The time period T1 is less than 1 s, preferably it is between 200 to 400 ms.
    In addition, the method comprises calculating the relative speed of the vehicle 1 in relation to an object 2 that is in the correction, and then, with the aid of this relative speed, calculating the probability of an accident before the accident occurs. For example, the probability of an accident occurring as a result of the vehicle slipping off the road can also be calculated on the basis of information collected from LDW systems.
    In addition, the alarm signal comprises a second signal packet s2. The method comprises clamed to transmit the second signal packet s2 after the first signal packet s1. The second signal packet s2 comprises information which complements the information in the first signal packet s1 and which is collected from several sensor systems in the vehicle. The second signal packet s2 can be sent to the alarm center before or after the accident.
    Furthermore, the method comprises the step of generating a control signal so-called comprising information which confirms / denies that the accident has occurred. This control signal is sent to the alarm center 10.
    The method also comprises that an accident is assumed to have occurred if the alarm center does not receive the control signal so-called within a time period T2. The time period T2 is usually set to 10 s, but can also be longer, or if sA is required shorter.
    The alarm signal is sent to the alarm center 10 in the form of a radio signal, via the mobile network or similarly. The transmission of the alarm signal to the alarm center thus takes place wirelessly.
    Figure 5 describes the conditions in an embodiment of the method for the vehicle 1. An assessment Ors of the time period T up to a possible imminent accident. If this time period is less than Ti, then an alarm signal comprising a first signal packet sl is sent from an alarm unit 5 to an alarm center 10. If there is then no flag accident, a control unit 6 sends a denial in the form of a control signal skp to the alarm center 10.
    If the accident occurs, the control unit 6 will try to send a confirmation in the form of a control signal ski (to the alarm center 10. If this control signal can not be transmitted, the alarm center 10 will after a time period T greater than T2 assume that an accident has occurred. 6 has not been probed in the accident, nor the sensor systems from which the control unit 6 receives information can a confirmation in the form of a control signal ski (sent to the alarm center 10. Then the alarm unit 5 will send a second signal packet s2 to the alarm center.
    It is also conceivable that the second signal packet s2 is not sent after the accident has occurred, but that the control unit 6 has been able to send a confirmation in the form of a control signal ski (to the alarm center 10).
    As shown in Figure 6, according to a second aspect, the invention relates to a system for a vehicle 1 comprising sensor systems on the vehicle for collecting current information about the vehicle's behavior towards the environment. The system comprises a calculating unit 3 adapted to determine with the aid of the collected information about the vehicle if an accident is imminent and an alarm unit 5 adapted to generate and send an alarm signal comprising a first signal packet sl, which includes information about the vehicle's identity, position and current time . Furthermore, the alarm signal is adapted to be transmitted before the accident actually occurs. The system's calculation unit 3 is also adapted to use the collected information about the vehicle to calculate the probability that an accident is imminent.
    The system can be further characterized in that the calculation unit 3 comprises a time calculation unit 4 adapted to calculate the time tolycla for the possible imminent accident.
    The alarm signal comprises a second signal packet s2. This second signal packet s2 comprises information which supplements the information in the first signal packet s1 and which is collected from several sensor systems in the vehicle. The second signal packet s2 is also transmitted from the alarm unit 5.
    The system also comprises a control unit 6 adapted to generate a control signal 10 comprising information which confirms / denies that the accident has occurred.
    Both the alarm unit 5 as well as the control unit 6 receive information from different sensor systems on the vehicle and from the calculation unit 3 which is the basis for generating and transmitting alarm signals and control signals.
    The present invention is not limited to the preferred embodiments described above. Various alternatives, modifications and equivalents can be used. The above embodiments are not to be construed as limiting the scope of the invention, as defined by the appended claims.
    权利要求:
    Claims (14)
    [1]
    1. calculate the probability (X Accident) that an accident is imminent, with the aid of the information collected about the vehicle, and
    [2]
    2. Compare the calculated probability (X Accident) with a certain threshold value (Xtroskel) whereby the first signal packet (p. 1) is generated and transmitted depending on the result of the comparison.
    [3]
    A method according to claim 2, comprising 1. calculating the time (accident) of the possible imminent accident, and 2. calculating the probability (Xaccident) that the accident occurs with the aid of the estimated time (accident).
    [4]
    A method according to claim 3, comprising transmitting the first signal packet (s 1) with the information about the vehicle at least a predetermined time period (Ti) before the estimated time (accident) for the possible imminent accident.
    [5]
    A method according to claim 2, comprising the steps of 1. calculating the relative speed of the vehicle (1) in relation to a correct example (2), and 2. calculating the probability (Xaccident) that the accident occurs with the aid of this relative speed.
    [6]
    A method according to any preceding claim, wherein the alarm signal comprises a second signal packet (s2), the method comprising the step of transmitting the second signal packet (s2) after the first signal packet (s1), the second signal packet (s2) comprising information complements the information in the first signal packet (p. 1) and collected from several sensor systems in the vehicle.
    [7]
    A method according to any one of the preceding claims, comprising the step of generating a control signal (so-called) comprising information which confirms / denies all the accident has occurred, which control signal (so-called) is transmitted to the alarm center (10).
    [8]
    Method according to claim 7, comprising the step of assuming that an accident has occurred if the alarm center (10) does not receive the control signal (so-called) within a time period (T2).
    [9]
    A method according to claim 1, comprising the step of transmitting the alarm signal to the alarm center (10) in the form of a radio signal, via the mobile network or in a similar manner.
    [10]
    A system for a vehicle (1) comprising a sensor system on the vehicle (1) for collecting current information about the vehicle's relation to the environment, characterized in that the system comprises 1. a calculation unit (3) adapted to use the collected information about the vehicle determine if an accident is imminent, and - an alarm unit (5) adapted to generate and transmit an alarm signal comprising a first signal packet (s 1), which includes information about the vehicle's identity, position and current time (Li). wherein the alarm signal is adapted to be transmitted before the accident may occur.
    [11]
    System according to claim 10, characterized in that the calculation unit (3) is adapted to calculate the probability (X Accident) that the accident is imminent. 10
    [12]
    System according to claim 11, characterized in that the calculation unit (3) comprises a time calculation unit (4) adapted to calculate the time (accident) for the possible imminent accident.
    [13]
    A system according to any one of claims 10 to 12, characterized in that the alarm signal comprises a second signal packet (s2), which comprises information which supplements the information in the first signal packet (s1) and which is collected from several sensor systems in the vehicle.
    [14]
    A system according to any one of claims 10 to 13, characterized in that the system comprises a control unit (6) adapted to generate a control signal (so-called) comprising information which confirms that the accident has occurred. 2
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    同族专利:
    公开号 | 公开日
    EP2463842A2|2012-06-13|
    EP2463842A3|2015-05-20|
    SE537418C2|2015-04-21|
    引用文献:
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1051311A|SE537418C2|2010-12-13|2010-12-13|Method and system for determining whether an imminent accident has resulted in a vehicle|SE1051311A| SE537418C2|2010-12-13|2010-12-13|Method and system for determining whether an imminent accident has resulted in a vehicle|
    EP20110192289| EP2463842A3|2010-12-13|2011-12-07|Method and system for a vehicle for generating and sending an alarm about an accident|
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