WO2015152794A1 - Method and system to assess the risk of change of traffic lane during the driving of a leading vehicle on a roadway with at least two neighbouring traffic lanes method and system to assess the risk of change of traffic lane during the driving of a leading vehicle on a roadway with at least two neighbouring traffic lanes - Google Patents
Method and system to assess the risk of change of traffic lane during the driving of a leading vehicle on a roadway with at least two neighbouring traffic lanes method and system to assess the risk of change of traffic lane during the driving of a leading vehicle on a roadway with at least two neighbouring traffic lanes Download PDFInfo
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- WO2015152794A1 WO2015152794A1 PCT/SE2015/050346 SE2015050346W WO2015152794A1 WO 2015152794 A1 WO2015152794 A1 WO 2015152794A1 SE 2015050346 W SE2015050346 W SE 2015050346W WO 2015152794 A1 WO2015152794 A1 WO 2015152794A1
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- Prior art keywords
- leading vehicle
- traffic lane
- neighbouring
- vehicle
- extent
- Prior art date
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- 230000008859 change Effects 0.000 title claims abstract description 68
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000004590 computer program Methods 0.000 claims abstract description 12
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Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/16—Anti-collision systems
- G08G1/167—Driving aids for lane monitoring, lane changing, e.g. blind spot detection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/08—Active safety systems predicting or avoiding probable or impending collision or attempting to minimise its consequences
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/08—Active safety systems predicting or avoiding probable or impending collision or attempting to minimise its consequences
- B60W30/09—Taking automatic action to avoid collision, e.g. braking and steering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/08—Active safety systems predicting or avoiding probable or impending collision or attempting to minimise its consequences
- B60W30/095—Predicting travel path or likelihood of collision
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/10—Path keeping
- B60W30/12—Lane keeping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18163—Lane change; Overtaking manoeuvres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/16—Anti-collision systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
- B60W2050/143—Alarm means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2554/00—Input parameters relating to objects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2554/00—Input parameters relating to objects
- B60W2554/80—Spatial relation or speed relative to objects
- B60W2554/802—Longitudinal distance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2554/00—Input parameters relating to objects
- B60W2554/80—Spatial relation or speed relative to objects
- B60W2554/804—Relative longitudinal speed
Definitions
- the invention relates to a method to assess the risk of change of traffic lane during the driving of a leading vehicle on a roadway with at least two neighbouring traffic lanes according to the introduction to claim 1 .
- the invention relates to a system to assess the risk of change of traffic lane during the driving of a leading vehicle on a roadway with at least two neighbouring traffic lanes.
- the invention relates also to a motor vehicle.
- the invention relates also to a computer program and a computer program product.
- a change of traffic lane involves a risk in the case in which a vehicle behind is approaching in the neighbouring traffic lane to which a change is to take place. From the point of view of traffic safety, thus, there is a need to assess the risk of change of traffic lane in the presence of vehicles that are approaching the leading vehicle from behind.
- a blind-spot warning system is, according to one variant, used for this purpose.
- Such a system warns or takes action in another manner when the driver's own vehicle is in the process of progressing into a neighbouring traffic lane in which a vehicle that is approaching the driver's own vehicle from behind is present or will become present in the near future.
- This is normally achieved by means of a rearwards-directed radar that detects vehicles in neighbouring traffic lanes, where it is assumed that the leading vehicle and the vehicle that is approaching it from behind are being driven essentially straight ahead along the direction of travel.
- FIG. 1 a illustrates this problem.
- a vehicle on a road with several traffic lanes that approaches a leading vehicle from behind and that is located far from the leading vehicle in the sideways direction may constitute a danger in an inner curve, without the system registering the danger.
- Figure 1 b illustrates this problem.
- US2003025597 reveals a system to provide assistance during change of traffic lane where the position of the line markings at the traffic lanes are memorised, whereby the history of the traffic lane position is determined in order to determine the position of the vehicle.
- One purpose of the present invention is to achieve a method and a system to assess the risk of change of traffic lane during the driving of a leading vehicle on a roadway with at least two neighbouring traffic lanes that minimises the risk of erroneous warnings in which risk during the change of traffic lanes is not present and the risk of omitted warnings when risk during the change of traffic lanes is present.
- a method to assess the risk of change of traffic lane during the driving of a leading vehicle on a roadway with at least two neighbouring traffic lanes comprising the steps: to detect the presence of vehicles that are approaching the leading vehicle from behind, further comprising the steps: to determine, based on specifications concerning the extent of a specified traffic lane in which the leading vehicle is being driven, the extent of at least one neighbouring traffic lane based on continuously determined reference positions at the leading vehicle relative to the said neighbouring traffic lane, in order to determine a risk zone extending a specified extent in the said neighbouring traffic lane backwards from the said leading vehicle, and taking the presence of a vehicle that is approaching the leading vehicle from behind in the said risk zone as a basis for warning against a change of traffic lane.
- reference positions are continuously determined at predetermined intervals. Efficient and predictable determination of the risk zone is in this way made possible.
- the intervals are intervals of extent along the direction of travel of the vehicle. Efficient and predictable determination of the risk zone is in this way made possible, independently of the speed of the vehicle.
- the intervals are intervals of time. Efficient and predictable determination of the risk zone that is simple to achieve is in this way made possible.
- the method comprises the step to determine the extent at the said neighbouring traffic lane based on parameters with respect to the travel of the leading vehicle, which parameters include the rate of change of yaw angle and speed of the leading vehicle.
- the said determination of extent of the said neighbouring traffic lanes includes the determination of distance relative to the leading vehicle.
- the extent with which the said risk zone extends backwards in the said neighbouring traffic lanes from the said leading vehicle is set to exceed the range of the detection of the said vehicle that is approaching the leading vehicle from behind. It is in this way ensured that measures such as giving a warning are taken, in the event that such a detected vehicle is located in the risk zone, as soon as the vehicle is detected.
- Figures 1 a and 1 b illustrate schematically the driving of a leading vehicle on a roadway with at least two neighbouring traffic lanes, where a vehicle that is approaching the leading vehicle from behind is detected according to the prior art technology;
- Figure 2 illustrates schematically a motor vehicle according to one embodiment of the present invention
- Figure 3 illustrates schematically a block diagram of a system to assess the risk of change of traffic lane during the driving of a leading vehicle on a roadway with at least two neighbouring traffic lanes according to the present invention
- Figure 4 illustrates schematically the driving of a leading vehicle on a roadway with at least two neighbouring traffic lanes, where reference positions relative to traffic lanes that are neighbouring to the vehicle have been determined
- Figures 5a and 5b illustrate schematically the driving of a leading vehicle on a roadway with at least two neighbouring traffic lanes, where a vehicle that is approaching the leading vehicle from behind is detected according to one embodiment of the present invention
- Figure 6 illustrates schematically a block diagram of a method to assess the risk of change of traffic lane during the driving of a leading vehicle on a roadway with at least two neighbouring traffic lanes according to the present invention
- Figure 7 illustrates schematically a computer according to one embodiment of the present invention.
- FIGS 1 a and 1 b illustrate schematically the driving of a leading vehicle 1 on a roadway R1 , R2 with at least two neighbouring traffic lanes L1 , L2, L3, where vehicles 2 that are approaching the leading vehicle 1 from behind are detected according to prior art technology.
- a leading vehicle 1 is driven in Figure 1 a on a road R1 with three traffic lanes L1 , L2, L3, where the road R1 curves.
- the vehicle 1 is travelling in the innermost traffic lane L3.
- a vehicle 2 that is approaching the leading vehicle 1 from behind is detected by means of radar means with a certain range, achieving a detection region A1 that is directed from the left side of the leading vehicle and essentially directly backwards relative to its direction of travel.
- blind-spot warning system What is known as a "blind-spot warning system" will in this case assume that a vehicle detected in a zone ZA1 extending directly backwards and at a distance that corresponds to the distance from the leading vehicle to the neighbouring traffic lane L2 constitutes a threat, whereby a warning is activated during change of traffic lane.
- the degree of curvature of the roadway will in this case lead to the vehicle 2 that is approaching from behind and that is located in the outermost traffic lane L1 being detected and a warning being activated.
- the blind-spot warning system in this case takes action unnecessarily, since the vehicle 2 that is approaching from behind is located close to the leading vehicle 1 in the sideways direction but even so is located more than one traffic lane away.
- a leading vehicle 1 is driven in Figure 1 b on a road R1 with two traffic lanes L1 , L2, where the road R1 curves.
- the vehicle 1 is travelling in the outermost traffic lane L1 .
- a vehicle 2 that is approaching the leading vehicle 1 from behind is detected by means of radar means with a certain range, achieving a detection region A2 that is directed from the right side of the leading vehicle and essentially directly backwards relative to its direction of travel.
- blind-spot warning system What is known as a "blind-spot warning system" will in this case assume that a vehicle detected in the detection region but determined to be not present in a zone ZA2 extending directly backwards and at a distance that corresponds to the distance from the leading vehicle to the neighbouring traffic lane L2 does not constitute a threat, whereby no warning is activated.
- the degree of curvature of the roadway will in this case lead to the vehicle 2 that is approaching from behind and that is located in the innermost traffic lane L1 not being considered to be approaching in a neighbouring traffic lane.
- the blind-spot warning system in this case does not take action, when the vehicle 2 that is approaching from behind is located close to the leading vehicle 1 in neighbouring traffic lanes, which constitutes a traffic danger.
- the term “link” refers to a communication link that may be a physical line, such as an opto-electronic communication line, or a non- physical line, such as a wireless connection, for example a radio link or microwave link.
- the term “neighbouring traffic lane” refers to neighbouring traffic lanes for vehicles travelling in the same direction, i.e. traffic lanes in the form of neighbouring lanes in which vehicles travel in the same direction, commonly found on larger roads such as motorways, and to neighbouring traffic lanes for travel in the opposite direction, i.e. neighbouring traffic lanes in which oncoming traffic is present in the neighbouring traffic lane and in which overtaking manoeuvres can take place.
- the term “roadway with at least two neighbouring traffic lanes” refers to any appropriate roadway with neighbouring traffic lanes according to the definition above.
- the term “roadway with at least two neighbouring traffic lanes” can consequently include a larger road such as a motorway with two or more neighbouring traffic lanes in the form of neighbouring lanes for travel in the same direction, a roadway with two neighbouring traffic lanes for travel in opposing directions, i.e. neighbouring traffic lanes in which oncoming traffic is present in the neighbouring traffic lane and in which overtaking manoeuvres can take place.
- FIG. 2 illustrates schematically a motor vehicle 1 according to one embodiment of the present invention.
- the vehicle 1 given as an example is constituted by a heavy vehicle in the form of a lorry.
- the vehicle may be a bus or a car.
- the vehicle comprises a system I to assess the risk of change of traffic lane during the driving of a leading vehicle on a roadway with at least two neighbouring traffic lanes according to the present invention.
- Figure 3 illustrates schematically a block diagram of a system I to assess the risk of change of traffic lane during the driving of a leading vehicle on a roadway with at least two neighbouring traffic lanes according to one embodiment of the present invention.
- the system I comprises an electronic control unit 100.
- the system I comprises means 1 10 to detect the presence of vehicles that are approaching the leading vehicle from behind.
- the means 1 10 to detect the presence of approaching vehicles behind a leading vehicle may include any suitable sensor at all.
- the means 1 10 to detect the presence of vehicles that are approaching a leading vehicle from behind comprises, according to one variant, radar means.
- the means 1 10 to detect the presence of vehicles that are approaching a leading vehicle from behind comprises, according to one variant, camera means.
- the means 1 10 to detect the presence of vehicles that are approaching a leading vehicle from behind comprises, according to one variant, lidar means.
- the means 1 10 to detect the presence of vehicles that are approaching a leading vehicle from behind comprises, according to one variant, laser scanning means.
- the means 1 10 to detect the presence of vehicles that are approaching a leading vehicle from behind includes sensor means to detect on both sides of the leading vehicle in order to facilitate the detection of the presence of vehicles that are approaching the leading vehicle from behind in traffic lanes to the right of the vehicle and in traffic lanes to the left of the vehicle.
- the leading vehicle comprises means 1 10 to detect the presence of vehicles approaching the leading vehicle from behind.
- the means 1 10 to detect the presence of vehicles approaching a leading vehicle from behind comprises means determine whether the vehicle that has been detected is approaching the leading vehicle, i.e. whether the vehicle that has been detected has a higher relative speed than the leading vehicle.
- the system I comprises means 200a to determine, based on specifications concerning the extent of a defined traffic lane in which the leading vehicle is being driven, the extent of at least one neighbouring traffic lane based on continuously determined reference positions at the leading vehicle relative to the said neighbouring traffic lane, in order to determine a risk zone extending a specified extent in the said neighbouring traffic lane backwards from the leading vehicle.
- the system I consequently comprises means 200 to determine a risk zone extending a specified extent in the said neighbouring traffic lanes backwards from the leading vehicle.
- the means 200 to determine a risk zone comprises the means to determine the extent at the said neighbouring traffic lanes.
- the means to determine the extent 200a at the said neighbouring traffic lanes comprises means 210 to determine continuously reference positions at the leading vehicle relative to traffic lanes neighbouring the traffic lane of the leading vehicle.
- the system I in this case comprises means 210 to determine continuously reference positions at the leading vehicle relative to traffic lanes neighbouring the traffic lane of the leading vehicle.
- the means 210 to determine continuously reference positions at the leading vehicle relative to neighbouring traffic lanes comprises means 212 to determine continuously the reference positions at predetermined intervals.
- the predetermined intervals are constituted by intervals of extent.
- the means 210 to determine continuously reference positions at the leading vehicle relative to neighbouring traffic lanes consequently comprises, according to this embodiment, means 212a to determine continuously the reference positions at predetermined intervals of extent.
- the intervals of extent are constituted by, according to one variant, predetermined distances/extents through which the leading vehicle has travelled, where the relevant distance/extent is the same.
- the means 210 to determine reference position is in this case arranged to determine continuously a reference position after each such distance/each such extent.
- the predetermined intervals are constituted by intervals of time.
- the means 210 to determine continuously reference positions at the leading vehicle relative to neighbouring traffic lanes consequently comprises, according to this embodiment, means 212b to determine continuously the reference positions at predetermined intervals of time.
- the intervals of time are constituted by predetermined intervals of time during which the leading vehicle has travelled, where each interval of time is the same.
- the means 210 to determine reference position is in this case arranged to determine continuously a reference position after each such interval of time.
- the means 210 to determine continuously reference positions at the leading vehicle relative to neighbouring traffic lanes comprises means 214 to determine parameters with respect to the travel of the leading vehicle. Parameters with respect to the travel of the leading vehicle include the rate of change of yaw angle and the speed of the leading vehicle.
- the means 210 to determine extent at the said neighbouring traffic lanes consequently comprises means 214 to determine parameters with respect to the travel of the leading vehicle, which parameters include the rate of change of yaw angle and speed of the leading vehicle.
- the system I comprises means 200a to determine extent at the said neighbouring traffic lanes based on parameters with respect to the travel of the leading vehicle, which parameters include the rate of change of yaw angle and speed of the leading vehicle.
- the rate of change of yaw angle is in this case used as a basis to determine whether, and the extent to which, the traffic lane in which the leading vehicle is being driven curves, whereby the assumption is made that neighbouring traffic lanes have corresponding curvatures.
- the means 214 to determine parameters with respect to the travel of the leading vehicle comprises means 214a to determine the rate of change of yaw angle of the leading vehicle.
- the means 214a to determine the rate of change of yaw angle includes at least one gyroscope.
- the means 214 to determine parameters with respect to the travel of the leading vehicle comprises means 214b to determine the speed of the leading vehicle.
- the means 214b to determine the speed of the vehicle comprises a speed gauge at the vehicle.
- the means 210 to determine continuously reference positions at the leading vehicle relative to neighbouring traffic lanes comprises, according to one variant, navigation means 214c that includes positional data of the current position of the vehicle, and map data that comprises information about the degree of curvature of the relevant route.
- the means 214 to determine parameters with respect to the travel of the leading vehicle comprises the said navigation means 214c.
- the navigation means 214c may be used as a supplement to the means 214a to determine the rate of change of yaw angle, to achieve redundancy.
- the determination of the rate of change of yaw angle in order to determine whether the traffic lane curves may be influenced by lurching of the leading vehicle, where information from the navigation means 214c concerning the degree of curvature of the traffic lane can be used to avoid erroneous assessments on the basis of such lurching .
- the navigation means 214c may be used also as an alternative to the means 214a to determine the rate of change of yaw angle.
- the means 210a to determine extent of the said neighbouring traffic lanes consequently comprises, according to one variant, navigation means 214c that includes positional data of the current position of the vehicle, and map data that comprises information about the degree of curvature of the relevant route.
- the system I comprises means 214a to determine the rate of change of yaw angle of the leading vehicle.
- the system I comprises means 214b to determine the speed of the leading vehicle.
- the system I comprises the said navigation means 214c.
- the means 210 to determine continuously reference positions at the leading vehicle relative to the neighbouring traffic lanes comprises means 216 to determine distance relative to the leading vehicle.
- the means 216 to determine distance relative to the leading vehicle comprises means 216a to determine line markings of neighbouring traffic lanes.
- the means 216a to determine line markings of neighbouring traffic lanes includes sensor means such as camera means.
- the means 216 to determine distance relative to the leading vehicle includes, according to one variant, sensor means.
- the said sensor means include, according to one variant, camera means.
- the means 216 to determine distance relative to the leading vehicle comprises, according to one variant, means 216b to determine virtual line markings of neighbouring traffic lanes.
- the means 216b to determine virtual line markings of neighbouring traffic lanes includes means to determine the width of traffic lanes in which the leading vehicle is travelling and/or neighbouring traffic lanes.
- the means to determine the width of traffic lanes comprises, according to one variant, navigation means that includes map data with information about the width of traffic lanes at the relevant route, type of route, and information about the current position of the vehicle.
- the navigation means may be constituted by the navigation means 214c.
- the means to determine the width of traffic lanes comprises, according to one variant, sensor means to determine the width of the traffic lane in which the leading vehicle is travelling, where, according to one variant, the width of the neighbouring traffic lane is assumed to be the same as the width of the traffic lane in which the leading vehicle is travelling.
- the means to determine the width of traffic lanes comprises, according to one variant, pre-determined stored information concerning the width of traffic lanes, which information may be stored in the electronic control unit 100.
- the system I comprises means 100, 120 to take the presence of a vehicle that is approaching the leading vehicle from behind in the said risk zone as a basis for taking measures during a change of traffic lane.
- the system I comprises means 120 to carry out measures in the event of the determination of the presence of a vehicle that is approaching the leading vehicle from behind in the said risk zone.
- the means 120 for taking measures comprises, according to one embodiment, means 122 to warn against a change of traffic lane in the event that such presence is determined.
- the means 122 of warning against change of traffic lane may be constituted by any suitable warning means at all, such as visual warning means, audible warning means and/or tactile warning means.
- the visual warning means includes, according to one variant, a display unit and/or a blinking unit or equivalent.
- the audible warning means includes warning in the form of a voice message and/or warning in the form of a sound alarm.
- the tactile warning means includes an influence on the steering wheel of the vehicle in the form of vibration/motion and/or influence on the seat of the vehicle in the form of vibration and/or influence on a pedal such as the accelerator pedal or brake pedal.
- the means 120 to take measures comprises, according to one embodiment, means 124 to prevent the leading vehicle from changing traffic lanes or to make it more difficult for the leading vehicle to change traffic lanes in the event that such a presence has been determined.
- the means 124 to prevent or make it more difficult to change traffic lanes includes an influence on the control of the leading vehicle such as a change of steering wheel position in the direction towards the neighbouring traffic lane in which the risk is present.
- the means 120 for taking measures comprises, according to one variant, the electronic control unit 100.
- the electronic control unit 100 is connected such that it exchanges signals over a link 1 1 with the means 1 10 to detect the presence of approaching vehicles behind a leading vehicle.
- the electronic control unit 100 is arranged such that it receives through the link 1 1 a signal from the means 1 10 that represents vehicle data about the presence of vehicles that are approaching the leading vehicle from behind.
- the electronic control unit 100 is connected such that it exchanges signals over a link 20 with the means 200 to determine a risk zone extending in neighbouring traffic lanes a specified extent backwards from the leading vehicle.
- the electronic control unit 100 is arranged to receive a signal over the link 20 from the means 200 representing risk zone data for the risk zone that has been determined extending backwards from the leading vehicle in neighbouring traffic lanes.
- the electronic control unit 100 is connected such that it exchanges signals over a link 20a with the means 200a to determine the extent of the said neighbouring traffic lanes.
- the electronic control unit 100 is arranged to receive a signal over the link 20a from the means 200a representing extent data for the extent of neighbouring traffic lanes for the determination of the risk zone backwards from the leading vehicle.
- the electronic control unit 100 is connected such that it exchanges signals over a link 21 with the means 210 to determine continuously reference positions at the leading vehicle relative to neighbouring traffic lanes to the traffic lane of the leading vehicle.
- the electronic control unit 100 is arranged to receive a signal over the link 21 from the means 210 representing reference position data for the reference positions to determine the extent of neighbouring traffic lanes for the determination of the risk zone backwards from the leading vehicle.
- the electronic control unit 100 is connected such that it exchanges signals over a link 22 with the means 212 means to determine continuously the reference positions at predetermined intervals.
- the electronic control unit 100 is arranged to receive a signal over the link 22 from the means 21 2 representing reference position data in order to determine continuously the reference positions at predetermined intervals, where the interval may be an interval of extent determined by means of the means 212a or an interval of time determined by means of the means 212b.
- reference position data for intervals of extent or intervals of time are received over the link 22.
- the electronic control unit 100 is connected such that it exchanges signals over a link 24a with the means 214a to determine the rate of change of yaw angle of the leading vehicle.
- the electronic control unit 100 is arranged to receive a signal over the link 24a from the means 214a representing rate of change of yaw angle data for the determination of any curvature that the traffic lane in which the leading vehicle is being driven may have.
- the electronic control unit 100 is connected such that it exchanges signals over a link 24b with the means 214b to determine the speed of the leading vehicle.
- the electronic control unit 100 is arranged to receive over the link 24b a signal from the means 214b that represents speed data for the speed of the leading vehicle.
- the electronic control unit 100 is connected such that it exchanges signals over a link 24c with the navigation means 214c.
- the electronic control unit 100 is arranged to receive a signal over the link 24c from the navigation means 214c representing map data for the width of the traffic lane in which the leading vehicle is being driven, including any curvature of the traffic lane that may be present.
- the electronic control unit 100 is connected such that it exchanges signals over a link 26a with the means 216a to determine line markings of neighbouring traffic lanes.
- the electronic control unit 100 is arranged to receive a signal over the link 26a from the means 216a representing distance data for the distance to line markings of neighbouring traffic lanes.
- the electronic control unit 100 is connected such that it exchanges signals over a link 26b with the means 216b to determine virtual line markings of neighbouring traffic lanes.
- the electronic control unit 100 is arranged to receive a signal over the link 26b from the means 216b representing distance data for the distance to virtual line markings of neighbouring traffic lanes.
- the electronic control unit 100 is connected such that it exchanges signals over a link 12 with the means 120 to carry out measures in the event of the determination of the presence of a vehicle that is approaching the leading vehicle from behind in the said risk zone.
- the electronic control unit 100 is arranged to transmit over the link 1 2 a signal to the means 120 representing action data, including warning data about the warning of change of traffic lane for the leading vehicle and/or impediment data in order to prevent or make more difficult change of traffic lane at the leading vehicle.
- the electronic control unit 100 is arranged to process the said reference position data, rate of change of yaw angle data, speed data, and, where relevant, map data, distance data for line markings or virtual line markings in order to determine risk zone data for risk zones extending in neighbouring traffic lanes backwards from the leading vehicle, and to compare risk zone data with the said vehicle data for the presence of vehicles that are approaching the leading vehicle from behind in order to determine whether the vehicle that is approaching the leading vehicle from behind is present in the said risk zone.
- control unit is arranged to transmit to the means 120 action data, including warning data for the warning against change of traffic lane for the leading vehicle and/or impediment data in order to prevent or make more difficult change of traffic lane at the leading vehicle.
- the reference positions are determined by means of the means 210 to determine reference positions continuously.
- the means 210 to determine reference positions continuously is determined, according to one embodiment, by means of the following equations:
- Dy(t) D y (t-t s ) - sin (t s *u))*ts*v (2) where the x-axis concerns positive values forwards in the direction of the leading vehicle, and the y-axis concerns positive values to the left in the direction of the leading vehicle.
- D denotes the distance [m] to line marking from a reference point at the leading vehicle 1 , where such a reference point at the leading vehicle may be constituted by, for example, the central point of the rear axle, the central point of the front axle, the central point of the front of the vehicle or equivalent
- v denotes the speed of the leading vehicle [m/s]
- ⁇ denotes the rate of change of yaw angle of the leading vehicle (rad/s)
- t s denotes the sampling time for updating of reference positions.
- a new reference position is created regularly after a predetermined extent.
- a new reference position is created regularly after a predetermined time.
- Figure 4 illustrates schematically the driving of a leading vehicle 1 on a roadway R1 with three neighbouring traffic lanes L1 , L2, L3, where reference positions relative to traffic lanes that are neighbouring to the vehicle have been determined.
- Figure 4 illustrates in this case a list of reference positions D L AI , D L BI ; D L A2, DI_B2; D
- the reference positions D L AI , D L BI ; DLA2, D L B2! D L A3, D L B3; D L A4, D L B4 according to Figure 4 have been determined by means of a system I according to the present invention.
- _B4 is in this case determined.
- the distances to the line markings M1 , M2 are here determined for the line marking M2 immediately to the left of the leading vehicle 1 and the next line marking M1 to the left, i.e. the line markings M1 , M2 defining the traffic lane L2 that is neighbour to the traffic lane L3 in which the leading vehicle 1 is travelling.
- the reference positions D L AI , D L A2, D L A3, D L A4 represent continuously determined distances to the line markings M2 immediately to the left of the leading vehicle 1 , and the reference positions D L BI , D L B2, D L B3, D L B4 distances to the line markings M1 to the left of the line markings M2.
- a risk zone is in this case continuously determined by means of the reference positions D L AI , DLBI ; D L A2, D L B2; DLAS, DLBS; D L A4, D L B4 as is made clear by Figure 5a.
- Figure 5a illustrates schematically the driving of a leading vehicle 1 on the roadway R1 in the direction of the arrow P1 according to Figure 4 with three neighbouring traffic lanes L1 , L2, L3 based on the reference positions that are continuously determined.
- the roadway R1 and the scenario correspond to that illustrated in Figure 1 a, with the corresponding detection region A1 .
- a risk zone Z1 is here determined, based on continuously determined reference positions.
- Figure 5b illustrates schematically the driving of a leading vehicle 1 in the direction of the arrow P1 on a roadway R1 with two neighbouring traffic lanes L1 , L2 where a vehicle 2 that is approaching the leading vehicle 1 from behind and that is being driven in the direction of the arrow P2 is detected according to one embodiment of the present invention.
- the roadway R2 and the scenario correspond to that illustrated in Figure 1 b, with the corresponding detection region A2.
- a risk zone Z2 is here determined, based on continuously determined reference positions.
- the vehicle 2 that is approaching the leading vehicle 1 from behind in the direction of the arrow P2 and that has been detected is located in the risk zone Z2 that has been determined, whereby measures are taken during change of traffic lane, in contrast to the prior art technology in which no warning is given during change of traffic lane.
- the extent Z1 a, Z2a, by which the said risk zone Z1 , Z2 is arranged to extend backwards in the said neighbouring traffic lane L2 from the said leading vehicle 1 is set to exceed the range A1 a, A2a for the detection of the said vehicle 2 that is approaching the leading vehicle 1 from behind.
- Figure 6 illustrates schematically a block diagram of a method to assess the risk of change of traffic lane during the driving of a leading vehicle on a roadway with at least two neighbouring traffic lanes according to one embodiment of the present invention.
- the method to assess the risk of change of traffic lane during the driving of a leading vehicle on a roadway with at least two neighbouring traffic lanes comprises a first step S1 .
- the presence of vehicles that are approaching the leading vehicle from behind is detected in this step.
- the method to assess the risk of change of traffic lane during the driving of a leading vehicle on a roadway with at least two neighbouring traffic lanes comprises a second step S2.
- the extent of at least one neighbouring traffic lane is determined in this step based on specifications concerning the extent of a defined traffic lane in which the leading vehicle is being driven based on continuously determined reference positions at the leading vehicle relative to the said neighbouring traffic lanes in order to determine a risk zone extending a specified extent in the said neighbouring traffic lanes backwards from the said leading vehicle.
- the method to assess the risk of change of traffic lane during the driving of a leading vehicle on a roadway with at least two neighbouring traffic lanes comprises a third step S3.
- the presence of vehicles that are approaching the leading vehicle from behind in the said risk zone is in this step taken as a basis for warning against a change of traffic lane.
- the control unit 100 that has been described with reference to Figure 3 can comprise in one execution the arrangement 500.
- the arrangement 500 comprises a non-transient memory 520, a data processing unit 510 and a read/write memory 550.
- the non-transient memory 520 has a first section of memory 530 in which a computer program, such as an operating system, is stored in order to control the function of the arrangement 500.
- the arrangement 500 comprises a bus controller, a serial communication port, I/O means, an A D converter, a unit for the input and transfer of time and date, an event counter and an interrupt controller (not shown in the drawing).
- the non-transient memory 520 has also a second section of memory 540.
- a computer program P that comprises routines to assess the risk of change of traffic lane during the driving of a leading vehicle on a roadway with at least two neighbouring traffic lanes according to the innovative method.
- the program P comprises routines to detect the presence of vehicles that are approaching the leading vehicle from behind.
- the program P comprises routines to determine, based on specifications concerning the extent of a defined traffic lane in which the leading vehicle is being driven, the extent of at least one neighbouring traffic lane based on continuously determined reference positions at the leading vehicle relative to the said neighbouring traffic lane in order to determine a risk zone extending a specified extent in the said neighbouring traffic lanes backwards from the said leading vehicle.
- the program P comprises routines to take into consideration the presence of a vehicle that is approaching the leading vehicle from behind in the said risk zone as a basis for warning against a change of traffic lane.
- the program P may be stored in an executable form or in a compressed form in a memory 560 and/or a read/write memory 550.
- the data processing unit 510 When it is described that the data processing unit 510 carries out a certain function, it is to be understood that the data processing unit 510 carries out a certain part of the program that is stored in the memory 560, or a certain part of the program that is stored in the read/write memory 550.
- the data processing arrangement 510 can communicate with a data port 599 through a data bus 515.
- the non-transient memory 520 is intended for communication with the data processing unit 510 through a data bus 512.
- the separate memory 560 is intended to communicate with the data processing unit 510 through a data bus 51 1 .
- the read/write memory 550 is arranged to communicate with the data processing unit 510 through a data bus 514. Links associated with the control units 200; 300, for example, may be connected to the data port 599.
- the data processing unit 510 When data is received at the data port 599 it is temporarily stored in the second section of memory 540. When the data that has been received has been temporarily stored, the data processing unit 510 is prepared for the execution of code in a manner that has been described above. The signals that have been received at the data port 599 can be used by the arrangement 500 to detect the presence of vehicles that are approaching the leading vehicle from behind.
- the signals received at the data port 599 can be used by the arrangement 500 to determine, based on specifications concerning the extent of a defined traffic lane in which the leading vehicle is being driven, the extent of at least one neighbouring traffic lane based on continuously determined reference positions at the leading vehicle relative to the said neighbouring traffic lane in order to determine a risk zone extending a specified extent in the said neighbouring traffic lanes backwards from the said leading vehicle.
- the signals that have been received at the data port 599 can be used by the arrangement 500 to take the presence of vehicles that are approaching the leading vehicle from behind in the said risk zone as a basis for warning against a change of traffic lane.
- Parts of the methods described here may be carried out by the arrangement 500 with the aid of the data processing unit 510, which runs the program stored in the memory 560 or in the read/write memory 550.
- the arrangement 500 runs the program, the method described here is executed.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020187033123A KR102050526B1 (en) | 2014-04-01 | 2015-03-23 | Method and system to assess the risk of change of traffic lane during the driving of a leading vehicle on a roadway with at least two neighbouring traffic lanes |
EP15773978.0A EP3127104A4 (en) | 2014-04-01 | 2015-03-23 | Method and system to assess the risk of change of traffic lane during the driving of a leading vehicle on a roadway with at least two neighbouring traffic lanes method and system to assess the risk of change of traffic lane during the driving of a leading vehicle on a roadway with at least two neighbouring traffic lanes |
BR112016021674-1A BR112016021674B1 (en) | 2014-04-01 | 2015-03-23 | METHOD AND SYSTEM FOR ASSESSING THE RISK OF CHANGE OF TRAFFIC LANE WHEN DRIVING A VEHICLE IN FRONT ON A ROAD WITH AT LEAST TWO NEIGHBORING TRAFFIC LANES |
KR1020167029242A KR20160134830A (en) | 2014-04-01 | 2015-03-23 | Method and system to assess the risk of change of traffic lane during the driving of a leading vehicle on a roadway with at least two neighbouring traffic lanes method and system to assess the risk of change of traffic lane during the driving of a leading vehicle on a roadway with at least two neighbouring traffic lanes |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE1450387-4 | 2014-04-01 | ||
SE1450387A SE540272C2 (en) | 2014-04-01 | 2014-04-01 | Procedure and system for risk assessment of lane change when driving a conductive vehicle on a roadway with at least two adjacent lanes |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015152794A1 true WO2015152794A1 (en) | 2015-10-08 |
Family
ID=54240949
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE2015/050346 WO2015152794A1 (en) | 2014-04-01 | 2015-03-23 | Method and system to assess the risk of change of traffic lane during the driving of a leading vehicle on a roadway with at least two neighbouring traffic lanes method and system to assess the risk of change of traffic lane during the driving of a leading vehicle on a roadway with at least two neighbouring traffic lanes |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3127104A4 (en) |
KR (2) | KR102050526B1 (en) |
BR (1) | BR112016021674B1 (en) |
SE (1) | SE540272C2 (en) |
WO (1) | WO2015152794A1 (en) |
Cited By (7)
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WO2018010742A1 (en) * | 2016-07-13 | 2018-01-18 | Conti Temic Microelectronic Gmbh | Device and method for adapting regions for warning a driver |
WO2018100164A1 (en) * | 2016-12-02 | 2018-06-07 | Bayerische Motoren Werke Aktiengesellschaft | Lane change assistance system having a relative speed-dependent reaction area |
EP3407329A4 (en) * | 2016-01-22 | 2019-01-30 | Nissan Motor Co., Ltd. | Driving assistance method and device |
CN111699518A (en) * | 2018-03-09 | 2020-09-22 | Jvc建伍株式会社 | Length measurement system, vehicle coupling system, length measurement method, and program |
CN112232581A (en) * | 2020-10-26 | 2021-01-15 | 腾讯科技(深圳)有限公司 | Driving risk prediction method and device, electronic equipment and storage medium |
CN113335272A (en) * | 2021-05-14 | 2021-09-03 | 江铃汽车股份有限公司 | Driving assistance method |
CN112232581B (en) * | 2020-10-26 | 2024-04-12 | 腾讯科技(深圳)有限公司 | Driving risk prediction method and device, electronic equipment and storage medium |
Families Citing this family (1)
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JP6984547B2 (en) * | 2018-06-08 | 2021-12-22 | トヨタ自動車株式会社 | Lane change support system, lane change support device and lane change support method |
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- 2015-03-23 KR KR1020187033123A patent/KR102050526B1/en active IP Right Grant
- 2015-03-23 WO PCT/SE2015/050346 patent/WO2015152794A1/en active Application Filing
- 2015-03-23 BR BR112016021674-1A patent/BR112016021674B1/en active IP Right Grant
- 2015-03-23 KR KR1020167029242A patent/KR20160134830A/en active Search and Examination
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Also Published As
Publication number | Publication date |
---|---|
KR102050526B1 (en) | 2019-11-29 |
BR112016021674B1 (en) | 2022-11-29 |
KR20160134830A (en) | 2016-11-23 |
BR112016021674A2 (en) | 2017-08-15 |
KR20180125620A (en) | 2018-11-23 |
EP3127104A4 (en) | 2017-11-22 |
SE1450387A1 (en) | 2015-10-02 |
EP3127104A1 (en) | 2017-02-08 |
SE540272C2 (en) | 2018-05-22 |
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