• 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:

    公开号:SE1050337A1
    申请号:SE1050337
    申请日:2010-04-08
    公开日:2011-10-09
    发明作者:Peter Samuelsson；Johan Hesse；Daniel Winsa
    申请人:Scania Cv Ab；
    IPC主号:
    专利说明:

    20 25 30 2 on the bus. A laser detector is provided in the rear door to detect passengers getting on or off.
    If something is jammed in the door or doors that are so small and thin that the door security system cannot detect this, then the activation of the security system may not occur until there is a pull in the terminal strip that gives rise to a pressure that can be detected. Since the existing stop brake function can only be activated when the vehicle is stationary, or almost stationary, no brake can be applied. If this happens, you must rely on the driver noticing that something is jammed in the door, in order to be able to manually brake the vehicle.
    The object of the invention is to further improve the safety of safety systems for vehicles, and in particular to ensure that nothing is left trapped in the vehicle's doors or windows when the vehicle has begun its departure from a pick-up point.
    Summary of the invention The object described above is achieved by a safety system for vehicles equipped with a stop brake, the safety system comprising at least one sensing device (1, 2 ... n) in connection with the doors or windows of the vehicle.
    The sensing device (1, 2 ... n) is adapted to generate an indication signal (1, 2 ... m) if one or more indication criteria are met, and comprises a control unit adapted to receive a deactivation signal indicating that the vehicle's stop brake has been deactivated. , and if the deactivation signal indicates that the stop brake has been deactivated and an indication signal (1, 2 ... m) has been generated from a sensing device (1, 2 ... n), then the control unit is adapted to send a request for braking to the vehicle's braking system, the braking system brakes the vehicle.
    According to another aspect, the object is achieved by a safety method in a safety system for vehicles equipped with a stop brake, the safety system 10 comprises at least one sensing device (1, 2 ... n) in connection with the doors or windows of the vehicle, which is adapted to generate an indication signal (1, 2 ... m) if one or more indication criteria are met, and if: - a deactivation signal has been received indicating that the vehicle's parking brake has been deactivated, and - an indication signal (1, 2 ... m) has been generated from said at least one sensing device (1, 2 ... n), a request for braking is sent to the vehicle's braking system, the braking system braking the vehicle.
    Through the safety system and method, you can automatically brake the vehicle even when it has started to move. In this way, it can be ensured that nothing is left trapped between the vehicle's doors or windows when the vehicle has started its departure from a collection point.
    When the vehicle has started its journey and something has been squeezed in a door, for example, the pull that results from the weight of what is squeezed can cause an indication signal (1, 2 ... m) to be generated by a sensing device (1, 2 ... n ). Then the safety system will ensure that the vehicle is stopped automatically, and preferably that the door is opened. In this way, what has been pinched can come loose without being damaged.
    Preferred embodiments are described in the dependent claims and in the detailed description.
    Brief Description of the accompanying Figures The invention will be described below with reference to the accompanying figures, of which: Figure 1 shows an example of a security system according to an embodiment of the invention.
    Figure 2 shows a fate diagram for a safety method according to an embodiment of the invention. Figure 3 shows a flow chart of a safety method according to a further embodiment of the invention.
    Figure 4 shows a flow chart of a safety method according to yet another embodiment of the invention.
    Figure 5 shows a flow chart of a safety method according to yet another embodiment of the invention.
    Detailed Description of Preferred Embodiments of the Invention Figure 1 schematically illustrates the security system of the invention.
    The safety system is adapted for vehicles equipped with a parking brake, as the system must be used when the parking brake cannot be activated. The stop brake is referred to in the figures as BSB, which is an abbreviation of "Bus Stop Brake".
    The parking brake is activated when the vehicle is stationary, and the parking brake is deactivated by, for example, the driver pressing the accelerator pedal. The system further comprises at least one sensing device (1, 2, n) in connection with the vehicle doors or windows, which is adapted to generate an indication signal (1, 2, m) if one or more indication criteria are met.
    The sensing device (1, 2, n) can be in the form of one or more terminal strips, pressure sensor, IR detector, etc. An indication criterion can be, for example, that a terminal strip detects contact, a pressure sensor detects a pressure that exceeds a predetermined value, or that an IR detector detects an object.
    The system also includes a control unit adapted to receive a deactivation signal indicating that the vehicle stop brake has been deactivated, and if the deactivation signal indicates that the stop brake has been deactivated and an indication signal (1, 2 ... m) has been generated from the at least one sensing device. .n), the control unit is adapted to send a request for braking to the vehicle's braking system, the braking system braking the vehicle. In this way, the vehicle can be automatically emergency braked when something gets stuck which is detected after the vehicle has started its journey. The control unit preferably comprises a processor unit which comprises a processor and a memory in order to be able to perform calculations and method steps described in connection with the invention.
    Signals are exchanged according to an embodiment through CAN (Controller Area Network) which denotes a serial bus system, specially developed for use in vehicles.
    The CAN data bus provides the opportunity for digital data exchange between sensors, control components, actuators, controllers, etc. and ensures that several controllers can access the signals from a certain sensor, to use these to control their connected components. However, other systems for exchanging signals are also conceivable.
    According to one embodiment, the control unit is adapted to measure the time TBSB from the deactivation of the stop brake, and to send a request for braking to the vehicle braking system when the TBSB is less than a preset time threshold Tthi, provided that a deactivation signal is received to the control unit indicating that indication signal (1, 2 ... m) is generated from the at least one sensing device (1, 2 ... n). By measuring and monitoring the TBSB from the time the stop brake has been deactivated, the system can ensure that it has not been too long since the vehicle left the stop until the vehicle is braked. If it has been too long, the vehicle may have had too high a speed and there is a risk that the passengers will be injured if the vehicle is braked quickly. Tim is preferably a value between 2 and 20 seconds. It is also avoided that the function is misused as it has been some time since the vehicle last stopped.
    According to one embodiment, the safety system is adapted to receive a speed signal indicating the speed of the vehicle, and to send a request for braking to the vehicle braking system when the vehicle speed V is less than a preset speed threshold value Vth, provided that a deactivation signal is received to the control unit. an indication signal (1, 2 ... m) is generated from the at least one sensing device (1, 2 ... n). By monitoring the speed of the vehicle after the stop brake has been deactivated, the system can ensure that the speed of the vehicle is not too high when the vehicle is braked. If the vehicle has reached too high a speed, there is a risk that the passengers will be injured if the vehicle is braked quickly. Vth is preferably a value between 1 and 15 km / s. This also prevents the function from being misused at high speeds.
    The control unit is preferably adapted to send the request for braking to the vehicle's braking system in the form of a gradually increasing deceleration torque.
    The criteria for how fast the braking torque may increase is that the vehicle must stop as quickly as possible, and that the passengers must not be injured. This also depends on the slope of the road, the mass of the vehicle, etc. However, the braking torque should cause the vehicle to stop for 0.1-5 seconds, preferably 1 second. Requests for deceleration steps are preferably sent to the service brakes.
    When said request for braking has been sent to the vehicle's braking system, according to one embodiment the control unit is adapted to block the vehicle's accelerator pedal. Thus, it is not possible for the driver to drive the vehicle until the safety system has deactivated the emergency stop and thereby deactivated the request for braking to the vehicle's braking system.
    After an emergency stop has occurred, which means that the said request for braking has been sent to the vehicle's braking system, it is desired to be able to deactivate the emergency stop in order to be able to continue driving the vehicle.
    To deactivate the emergency stop, the control unit is preferably adapted to measure the time Tbrake from the time said request for braking has been sent, and since Tbrake is greater than a time threshold value Tthg, allow a deactivation request to be sent to the vehicle's braking system to remove said request for braking. Thus, the emergency stop can be deactivated only after a certain time has elapsed.
    According to one embodiment, the emergency stop can be deactivated by placing the vehicle's gear in neutral. The control unit is then adapted to receive a neutral gear signal which indicates that the vehicle's gearbox is in neutral gear. According to one embodiment, the control unit is adapted to send a deactivation request to the vehicle's braking system to delete said request for braking, if said request for braking has been sent and a neutral gear signal has been received thereafter, and Tbrake> TW. The driver can thus, after a certain time Tthz after the emergency stop, deactivate this by putting the vehicle's gear in neutral.
    The emergency stop can instead be deactivated by opening the door or window where a sensing device (1, 2 ... n) has indicated that something is jammed.
    The control unit is then adapted to receive an opening signal which indicates that the affected door or window is opened or has been opened. According to one embodiment, the control unit is adapted to send a deactivation request to the vehicle's braking system to delete said request for braking, if said request for braking has been sent and an opening signal has been received thereafter, and Tbrake> Tthg. The emergency stop can thus be deactivated after a certain time Tthz by opening the affected door or window.
    An additional way to deactivate the emergency stop can be done by the driver depressing the accelerator pedal and thus accelerating the vehicle. However, this requires that another choice has been made before, e.g. that the vehicle's gearbox has been engaged in neutral, or that the affected door or window has been opened. The control unit is then adapted to receive an acceleration signal indicating whether the vehicle is accelerated, and if said request for braking has been sent, an acceleration signal has been received thereafter and a neutral gear signal has been received, then the control unit is adapted to send a deactivation request to the vehicle's braking system. said request for braking. Instead of the criterion "a neutral gear signal has been received" according to the previous paragraph, the criterion may instead be that "an opening signal has been received".
    In this way, the driver can, provided that another choice such as placing the vehicle's gearbox in a neutral or open affected door or window, deactivate the emergency stop and continue to drive the vehicle.
    If the vehicle's stop brake is activated, this can also deactivate the emergency stop.
    An additional criterion in addition to the pouring brake is activated can be that the door or window where a sensing device (1, 2 ... n) has indicated that something is jammed must be opened, before the emergency stop is deactivated. The emergency stop can also be deactivated by combining one or more of the above-mentioned methods, which will be illustrated in the examples below with reference to Figures 3 to 5.
    The control unit can also be adapted to reset the braking request after X number of subsequent attempts to start the engine. X can be, for example, 10-30 trials. This way you can be sure to start the engine and drive the vehicle regardless of what happens to other functions.
    The invention also relates to a safety method in a vehicle safety system illustrated by the flow chart in Figure 2. The method comprises that if a deactivation signal is received indicating that the vehicle stop brake has been deactivated, and an indication signal (1, 2 ... m) is generated from a sensing device (1, 2 ... n), a request for braking is sent to the vehicle's braking system, whereby the braking system brakes the vehicle. In this way, you can ensure that the vehicle can be automatically braked even when it is in motion.
    Figure 3 shows an example of a preferred method of activating the emergency stop.
    The BSB stop brake is active, which means that the vehicle is stationary at, for example, a stop to drop on and off passengers. Doors and any windows close, and the driver depresses the accelerator pedal to drive away the vehicle, which deactivates the stop brake. The deactivation of the stop brake triggers the timing of the time TBSB, ie from the time the stop brake is deactivated. According to this example, speed V of the vehicle is also monitored, but according to one embodiment, only either TBSB and vehicle speed V are monitored.
    If now an indication signal (1, 2 ... m) has been generated after the stop brake has been deactivated, and the TBSB is less than a preset time threshold value TM, and if the vehicle speed V is less than a preset speed threshold value Vth, then a request for braking is sent to the vehicle's braking system. Said request for braking is preferably sent to the vehicle's braking system in the form of a gradually increasing braking torque, whereby the vehicle is braked. 10 15 20 25 30 9 While said emergency braking is activated and thus said request for braking is sent to the vehicle's braking system, the vehicle's accelerator pedal is preferably blocked. When the vehicle's speed has dropped below a certain speed, the vehicle's stop brake is activated. The vehicle's stop brake and the emergency stop braking are then applied simultaneously.
    Figure 4 shows an example of how the emergency brake can be deactivated. When a braking torque is requested, the time Tbrake is measured from the time the said request for braking has been sent. When Tbrake is greater than a threshold value Tihg, according to one embodiment, a deactivation request is sent to the vehicle's braking system to remove said request for braking. The example also requires that an acceleration signal be received indicating that the vehicle is accelerating, and that the vehicle gear is in neutral or that the door or window from which an indication signal (1, 2 ... m) has been generated has been opened, in order for a deactivation request to be sent to the brake system. If the safety system incorrectly detects that something is jammed in the door, the driver must be able to put the vehicle's gear in neutral to be able to deactivate the emergency brake. A neutral gear signal is then received which indicates that the vehicle's gearbox is in neutral gear. Figure 5 shows an example of how the vehicle is again in a drivable condition after a deactivation request has been sent. Provided that the stop brake is activated, the vehicle is accelerated and a deactivation request is sent, the stop brake is deactivated. If an error occurs so that a deactivation request is never issued, the braking request can be reset after X number of subsequent attempts to start the engine. In the example, X = 30, but there may be another number of attempts. When the stop brake is no longer activated and the vehicle's gearbox is not in neutral and the TBSB is greater than a threshold value which in the example in the figure is 10 seconds or the vehicle has reached a certain speed which in the example in the figure is 10 km / h, the vehicle's braking request is reset. . Thus, the vehicle is ready to reactivate the emergency stop. Specified values are shown as examples only. The invention also relates to a computer program product, comprising computer program instructions for causing a computer system in a vehicle to perform the above-mentioned steps according to the method, when the computer program instructions are run on said computer system. The invention also includes a computer program product in which the computer program instructions are stored on a medium readable by a computer system.
    The present invention is not limited to the embodiments described above. Various alternatives, modifications and equivalents can be used.
    Therefore, the above-mentioned embodiments do not limit the scope of the invention, which is defined by the appended claims.
    权利要求:
    Claims (28)
    [1]
    Vehicle safety system equipped with a stop brake, the safety system comprising at least one sensing device (1, 2 ... n) in connection with the vehicle's doors or windows, which is adapted to generate an indication signal (1, 2 ... m) if a or several indication criteria are met, characterized in that the system comprises: - a control unit adapted to receive a deactivation signal indicating that the vehicle stop brake has been deactivated, and if - the deactivation signal indicates that the stop brake has been deactivated and - an indication signal (1, .m) is generated from the at least one sensing device (1, 2 ... n), the control unit is adapted to send a request for braking to the vehicle's braking system, the braking system braking the vehicle.
    [2]
    A safety system according to claim 1, wherein the control unit is adapted to measure the time TBSB from the deactivation of the stop brake, and to send a request for braking to the vehicle brake system when the TBSB is less than a preset time threshold Tim and a deactivation signal is received indicating that the stop brake and that an indication signal (1, 2 ... m) is generated from the at least one sensing device (1, 2 ... n).
    [3]
    A safety system according to claim 1 or 2, wherein the control unit is adapted to receive a speed signal indicating the speed of the vehicle, and to send a request for braking to the vehicle's braking system when the vehicle speed is less than a preset speed threshold value Vth and a deactivation signal is received indicating that the stop brake has been deactivated and an indication signal (1, 2 ... m) has been generated from the at least one sensing device (1, 2 ... n). 10 15 20 25 30 12
    [4]
    Safety system according to any one of the preceding claims, in which the control unit is adapted to send said request for braking to the braking system of the vehicle in the form of a gradually increasing braking torque.
    [5]
    Safety system according to any one of the preceding claims, in which the control unit is adapted to block the vehicle's accelerator pedal if said request for braking is sent to the vehicle's braking system.
    [6]
    Safety system according to any one of the preceding claims, in which the control unit is adapted to measure the time Tbrake from the time said request for braking has been sent, and when Tbrake> Tthg, where Tthg is a preset time threshold value, allow a deactivation request to be sent to the vehicle remove the said request for braking.
    [7]
    A safety system according to claim 6, in which the control unit is adapted to receive a neutral gear signal indicating that the vehicle gearbox is in neutral gear.
    [8]
    Security system according to claim 6, in which the control unit is adapted to receive an opening signal indicating that the affected door or window has been opened.
    [9]
    A safety system according to claim 7, wherein the control unit is adapted to send a deactivation request to the vehicle's braking system to delete said request for braking, if said request for braking has been sent and a neutral gear signal has been received thereafter and Tbrake> Tthg.
    [10]
    A safety system according to claim 8, wherein the control unit is adapted to send a deactivation request to the vehicle's braking system to delete said request for braking, if said request for braking has been sent and an opening signal has been received thereafter, and Tbfake> Tthg. 10 15 20 25 30 13
    [11]
    A safety system according to any one of claims 1-7 or 9, wherein the control unit is adapted to receive an acceleration signal indicating whether the vehicle is accelerating, and if said request for braking has been sent, and an acceleration signal has been received thereafter and a neutral gear signal has been received , the control unit is adapted to send a deactivation request to the vehicle's braking system to remove said request for braking.
    [12]
    A safety system according to any one of claims 1-6, 8 or 10, in which the control unit is adapted to receive an acceleration signal indicating whether the vehicle is accelerating, and if said request for braking has been sent, an acceleration signal has subsequently been received and an opening signal has been received. then the control unit is adapted to send a deactivation request to the vehicle's braking system to remove said request for braking.
    [13]
    Safety system according to one of the preceding claims, in which the control unit is adapted to reset the braking request after X number of subsequent attempts to start the engine.
    [14]
    A safety method in a vehicle safety system equipped with a parking brake where the safety system comprises at least one sensing device (1, 2 ... n) in connection with the vehicle's doors or windows, which is adapted to generate an indication signal (1, 2 ... m) if one or more indication criteria are met, characterized in that the method comprises that if: - a deactivation signal has been received indicating that the vehicle's stop brake has been deactivated, and - an indication signal (1, 2 ... m) has been generated from the at least one sensing device (1, 2 ... n), a request for braking is sent to the vehicle's braking system, whereby the braking system brakes the vehicle.
    [15]
    The safety method of claim 14, comprising measuring the time TBSB from the deactivation of the stop brake, and sending a request for braking to the vehicle braking system when the TBSB is greater than a preset time threshold value Tim provided that a deactivation signal is received as indicates that the vehicle's pouring brake has been deactivated, and an indication signal (1, 2 ... m) has been generated from the at least one sensing device (1, 2 ... n).
    [16]
    A safety method according to claim 14 or 15, which comprises sending a request for braking to the vehicle's braking system when the vehicle's speed is greater than a preset speed threshold value Vth provided a deactivation signal is received indicating that the vehicle's stop brake has been deactivated, and an indication signal 2 (1,. ..m) generated from the at least one sensing device (1, 2 ... n).
    [17]
    A safety method according to any one of claims 14-16, which comprises sending said request for braking to the braking system of the vehicle in the form of a gradually increasing braking torque.
    [18]
    A safety method according to any one of claims 14-17, which comprises blocking the vehicle's accelerator pedal if said request for braking is sent to the vehicle's braking system.
    [19]
    A safety method according to any one of claims 14-18, which comprises measuring the time Tbrake from the time said request for braking has been sent, and then Tbrake> Tthg allowing a deactivation request to be sent to the vehicle's braking system to delete said request for braking.
    [20]
    A safety method according to claim 19, which comprises receiving a neutral gear signal indicating that the vehicle gearbox is in neutral gear.
    [21]
    The security method of claim 19, comprising receiving an opening signal indicating that the actuated door or window has been opened. 10 15 20 25 30 15
    [22]
    A safety method according to claim 20, which comprises sending a deactivation request to the vehicle's braking system to delete said request for braking, if said request for braking has been sent and a neutral gear signal has been received thereafter and Tbrake> Tthg.
    [23]
    A safety method according to claim 21, which comprises sending a deactivation request to the vehicle's braking system to delete said request for braking, if said request for braking has been sent and an opening signal has been received thereafter and Tbrake> Tthg.
    [24]
    A safety method according to any one of claims 14-20 or 22, which comprises receiving an acceleration signal indicating whether the vehicle is accelerating, and if said request for braking has been sent, and an acceleration signal has been received thereafter and a neutral gear signal has been received, sending a deactivation request to the vehicle's braking system to remove said braking request.
    [25]
    A safety method according to any one of claims 14-19, 21 or 23, which comprises receiving an acceleration signal indicating whether the vehicle is accelerating, and if said request for braking has been sent, an acceleration signal has been received thereafter and an opening signal has been received, sending an deactivation request to the vehicle's braking system to remove said request for braking.
    [26]
    A safety method according to any one of claims 14-25, which comprises resetting the braking request after X number of subsequent attempts to start the engine.
    [27]
    A computer program product, comprising computer program instructions for causing a computer system in a vehicle to perform the steps of the method according to any of claims 14-26, when the computer program instructions are run on said computer system. 16
    [28]
    The computer program product of claim 27, wherein the computer program instructions are stored on a medium readable by a computer system.
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    同族专利:
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    AU2011238969A1|2012-11-01|
    EP2555955A1|2013-02-13|
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    SE534750C2|2011-12-06|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1050337A|SE534750C2|2010-04-08|2010-04-08|Security system and method|SE1050337A| SE534750C2|2010-04-08|2010-04-08|Security system and method|
    PCT/SE2011/050405| WO2011126441A1|2010-04-08|2011-04-06|Safety system and method|
    AU2011238969A| AU2011238969B2|2010-04-08|2011-04-06|Safety system and method|
    BR112012019732-0A| BR112012019732B1|2010-04-08|2011-04-06|SECURITY METHOD AND SYSTEM AND COMPUTER-READABLE MEANS|
    EP11766244.5A| EP2555955B1|2010-04-08|2011-04-06|Safety system and method|
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