WO2017130643A1 - 車両の走行制御方法および車両の走行制御装置 - Google Patents
車両の走行制御方法および車両の走行制御装置 Download PDFInfo
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- WO2017130643A1 WO2017130643A1 PCT/JP2017/000052 JP2017000052W WO2017130643A1 WO 2017130643 A1 WO2017130643 A1 WO 2017130643A1 JP 2017000052 W JP2017000052 W JP 2017000052W WO 2017130643 A1 WO2017130643 A1 WO 2017130643A1
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- Prior art keywords
- pedestrian crossing
- vehicle
- target pedestrian
- area
- moving object
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Definitions
- the present invention relates to a travel control method for a vehicle and a travel control device for a vehicle.
- Patent Document 1 a technique of detecting a moving object existing around a host vehicle and determining whether the detected moving object and the host vehicle approach each other at a pedestrian crossing.
- the problem to be solved by the present invention is a method of controlling travel of a vehicle capable of appropriately detecting a moving object which may approach the own vehicle when the own vehicle approaches a pedestrian crossing, and travel control of the vehicle It is providing a device.
- the present invention identifies a pedestrian crossing on which the vehicle is to travel as a target pedestrian crossing, detects a road configuration close to the target pedestrian crossing, and determines a flow line of a moving object traversing the target pedestrian based on the road configuration.
- the above problem is solved by estimating and setting an area including the estimated flow line as a detection area and detecting a moving object in the detection area.
- the detection area is set based on the flow line of the moving object crossing the target pedestrian crossing, the moving object which may approach the own vehicle when the own vehicle approaches the target pedestrian crossing Can be properly detected.
- FIG. 1 is a diagram showing a configuration of a travel control device 100 of a vehicle according to an embodiment of the present invention.
- the travel control device 100 of the vehicle according to the present embodiment controls the surroundings detection sensor 110, the vehicle speed sensor 120, the own vehicle position detection device 130, the database 140, the drive control device 150, and And a device 160.
- These devices are connected by a CAN (Controller Area Network) or another in-vehicle LAN to exchange information with each other.
- CAN Controller Area Network
- the surrounding area detection sensor 110 detects an object present around the host vehicle.
- a surrounding detection sensor 110 a front camera for imaging the front of the host vehicle, a rear camera for imaging the rear of the host vehicle, a front radar for detecting an obstacle in front of the host vehicle, an obstacle behind the host vehicle Radars that detect the rear side of the vehicle and side radars that detect obstacles that are present on the side of the vehicle.
- a pedestrian, a bicycle, a motorbike, a motor vehicle, a road obstacle, a traffic light, a road marking, a pedestrian crossing etc. are mentioned as an example of a subject which circumference detection sensor 110 detects.
- one of the plurality of sensors described above may be used as the ambient detection sensor 110, or two or more types of sensors may be combined.
- the detection result of the ambient detection sensor 110 is output to the control device 160.
- the vehicle speed sensor 120 measures the rotational speed of a drive system such as a drive shaft or a wheel, and detects the traveling speed of the vehicle (hereinafter also referred to as the vehicle speed) based on this.
- the vehicle speed information detected by the vehicle speed sensor 120 is output to the control device 160.
- the vehicle position detection device 130 is configured of a GPS unit, a gyro sensor, and the like.
- the vehicle position detection device 130 detects radio waves transmitted from a plurality of satellite communications by the GPS unit, periodically acquires position information of the vehicle, and acquires the acquired position information of the vehicle and the gyro sensor. Based on the angle change information and the vehicle speed acquired from the vehicle speed sensor 120, the current position of the vehicle is detected.
- the position information of the own vehicle detected by the own vehicle position detection device 130 is output to the control device 160.
- the database 140 stores map information.
- the map information includes link information of a road on which the vehicle travels, a sidewalk, and a pedestrian crossing.
- FIG. 2 is a diagram for explaining link information included in map information.
- the link information of the road on which the vehicle travels has links and nodes for each lane as link information.
- the links LA1 and LA2 of the lanes A1 and A2 are stored in the database 140 as link information of the road on which the vehicle V1 travels.
- the link information of the pedestrian crossing has, for each pedestrian crossing, a link extending in the longitudinal direction of the pedestrian crossing (that is, the transverse direction of moving objects such as pedestrians and bicycles crossing the pedestrian crossing) as link information .
- the link LB1 of the pedestrian crossing B1 is stored in the database 140 as link information of the pedestrian crossing.
- the map information stored in the database 140 also includes area information of a pedestrian crossing on the map.
- the shape of the pedestrian crossing area is not limited to a rectangle, and may be another polygon.
- area information such as the position and the shape of the area RB1 occupied by the pedestrian crossing B1 on the map is stored in the database 140.
- the map information stored in the database 140 also includes information on road configurations other than pedestrian crossings. Such road configurations include, for example, information on sidewalks, roadside zones and median dividers.
- the sidewalk SW and the roadside band SS are stored in the database 140 as information on the road configuration.
- the database 140 also has, as map information, information such as lane boundaries (lane marks, curbs, etc.), stop lines, guard rails, road shapes and road curvatures.
- the map information stored in the database 140 is appropriately referred to by the control device 160.
- Drive control device 150 controls the traveling of the host vehicle. For example, when the host vehicle follows the leading vehicle (hereinafter, also referred to as tracking control), the drive control device 150 sets acceleration / deceleration and vehicle speed so that the inter-vehicle distance between the host vehicle and the leading vehicle becomes a fixed distance. Operation of drive mechanism to realize (In the case of an engine car, the operation of an internal combustion engine, in the case of an electric car system, it includes an electric motor operation. In the case of a hybrid car, it includes the torque distribution between the internal combustion engine and the electric motor. ) And control the braking action.
- the control of the operation of the steering actuator is performed to control the movement of the wheels, thereby executing turn control of the vehicle.
- the drive control device 150 controls the traveling of the host vehicle according to an instruction of the control device 160 described later. Moreover, as the traveling control method by the drive control device 150, other known methods can also be used.
- Control device 160 is a ROM (Read Only Memory) storing a program for controlling the traveling of the host vehicle, a CPU (Central Processing Unit) executing a program stored in this ROM, and an accessible storage device. It consists of a functional RAM (Random Access Memory). Note that as an operation circuit, a micro processing unit (MPU), a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), etc., instead of or in addition to a central processing unit (CPU) Can be used.
- MPU micro processing unit
- DSP digital signal processor
- ASIC application specific integrated circuit
- FPGA field programmable gate array
- the control device 160 causes the CPU to execute the program stored in the ROM to obtain the vehicle information acquisition function of acquiring the information of the vehicle, the ambient information acquisition function of acquiring the detection result of the ambient detection sensor 110, and A route search function for searching a planned travel route of a vehicle, a pedestrian crossing identification function for identifying a pedestrian crossing through which the vehicle is scheduled to pass as a target pedestrian crossing, and a road configuration detection function for detecting a road configuration close to the target pedestrian crossing , A flow line estimation function of estimating the flow line of the moving object based on the detected road configuration, a detection area setting function of setting a detection area based on the flow line of the moving object, and detecting the moving object in the detection area A moving object detection function and a traveling control function of controlling the traveling of the vehicle based on the detection result of the moving object are realized.
- each function of the control device 160 will be described.
- the own vehicle information acquisition function of the control device 160 is a function capable of acquiring information on the own vehicle as the own vehicle information. Specifically, the control device 160 can acquire the vehicle speed information of the own vehicle from the vehicle speed sensor 120 as the own vehicle information by the own vehicle information acquisition function. Further, the control device 160 can obtain information of the current position of the vehicle from the vehicle position detection device 130 as vehicle information by the vehicle information acquisition function.
- the ambient information acquisition function of the control device 160 is a function that can acquire the detection result of the ambient detection sensor 110 as ambient information.
- the control device 160 acquires the image information outside the vehicle captured by the front camera and the rear camera, the detection result by the front radar, the rear radar, and the side radar as the ambient information by the ambient information acquisition function.
- the control device 160 analyzes the image information acquired from the camera by the ambient information acquisition function, and performs a clustering process on the point group information detected by the radar to obtain the position of the target object around the vehicle or Information such as moving speed can be acquired as ambient information.
- the route search function of the control device 160 is a function capable of searching for a planned travel route of the vehicle. For example, when the driver inputs a destination via an input device (not shown) by the route search function, the control device 160 may use the destination input by the driver, the map information stored in the database 140, and the control device 160 itself. Based on the position information of the own vehicle detected by the vehicle position detection device 130, it is possible to search for a planned traveling route of the own vehicle.
- the database 140 according to the present embodiment stores link information for each lane as shown in FIG.
- the link for each lane is preset with a weight according to the traveling distance and the road condition in each lane (for example, the longer the distance, the worse the road condition, the larger the weight of the link).
- the control device 160 can, for example, identify a lane suitable for the travel route from the current position of the host vehicle to the destination by the route search function, and correct the link weight of the identified lane. For example, if it is necessary to make a right turn to reach a destination, correction may be made to reduce the weight of the link in the right turn lane. Then, using the graph search theory such as the Dikistra method or A * (A-star) algorithm, the control device 160 sums up the weight of the link of the lane passing from the current position of the own vehicle to the destination by the route search function. It is possible to search for a route at a lane level at which is the smallest as a planned travel route.
- the pedestrian crossing identification function of the control device 160 may identify the pedestrian crossing which the vehicle is to pass as the target pedestrian crossing, based on the planned traveling route searched by the route searching function and the map information stored in the database 140 It is a function that can be done.
- the control device 160 can refer to the map information stored in the database 140 by the pedestrian crossing specifying function to acquire area information of the pedestrian crossing expressed in a polygon.
- the control apparatus 160 can specify the said pedestrian crossing as a target pedestrian crossing by the pedestrian crossing specific function, when the link of the lane which shows the travel planned route of the own vehicle and the area
- the pedestrian crossing B1 is identified as the target pedestrian crossing.
- the identification method of a target pedestrian crossing is not limited to the said method.
- the control device 160 may specify the pedestrian crossing as the target pedestrian crossing it can.
- the link LA1 of the lane A1 indicating the planned travel route of the host vehicle V1 intersects with the link LB1 of the pedestrian crossing B1, so the control device 160 targets the pedestrian crossing B1 by the pedestrian crossing identification function. It can be identified as a pedestrian crossing.
- the control device 160 is configured to obtain the captured image in front of the host vehicle V1 from the camera that captures the front of the host vehicle V1 using the pedestrian crossing identification function and perform image analysis to specify the target pedestrian crossing. You can also.
- the road configuration detection function of the control device 160 detects a road configuration such as a sidewalk, a roadside zone, a pedestrian crossing, and a central separation belt close to the target pedestrian crossing from the detection result of the surrounding detection sensor 110 or the map information acquired from the database 140 It is a function that can be done.
- the control device 160 can detect the sidewalk SW and the roadside band SS close to the target pedestrian crossing B1 as the road configuration close to the target pedestrian crossing by the road configuration detection function.
- the flow line estimation function of the control device 160 is a target crossing of a moving object (a moving object crossing a pedestrian crossing such as a pedestrian or a bicycle) crossing the target pedestrian crossing based on the road composition detected by the road composition detecting function. It is a function that can estimate the flow line in the sidewalk (a line that indicates the direction, frequency, etc., in which people and objects move).
- the control device 160 estimates that the moving object crosses the target pedestrian crossing by using the flow line estimation function as shown in FIG. 3, and estimates the moving line S1 of the mobile object on the target pedestrian crossing be able to.
- control device 160 is a sidewalk or roadside band of a moving object which stands by at the sidewalk or roadside zone to cross the target pedestrian crossing based on the road configuration detected by the road configuration detection function by the flow line estimation function. You can estimate the flow line in For example, as shown in FIG. 3, the control device 160 causes the moving object to move from the end opposite to the target pedestrian crossing B1 of the sidewalk SW or roadside band SS to the target pedestrian crossing by the flow line estimation function. It is estimated that the moving object moves in the length direction (X direction), and it is possible to estimate the flow lines S2 and S3 of the moving object waiting on the sidewalk or the roadside zone.
- the detection area setting function of the control device 160 is a function capable of setting a detection area for detecting a moving object based on the flow line of the moving object estimated by the flow line estimation function. The details of the method of setting the detection area by the detection area setting function will be described later.
- the moving object detection function of the control device 160 is a function capable of detecting a moving object in the detection area set by the detection area setting function. Specifically, the control device 160 detects the moving object using only the detection result in the detection region RT among the detection results of the surroundings of the own vehicle detected by the surrounding detection sensor 110 by the moving object detection function. It can be carried out.
- the travel control function of the control device 160 is a function capable of controlling the automatic driving travel of the host vehicle.
- the control device 160 uses the driving control device 150 to transmit the engine control signal to the drive control device 150 based on the detection result of the surrounding area detection sensor 110 and the predetermined traveling conditions (traffic regulations and planned traveling route).
- a drive mechanism such as a brake and a steering mechanism such as a steering actuator
- the control device 160 controls the travel position in the width direction of the vehicle by causing the drive control device 150 to control the operation of the steering actuator or the like so that the vehicle travels in the lane with the travel control function. Can perform lane keeping control.
- control device 160 causes the drive control device 150 to control the operation of the drive mechanism such as the engine and the brake so that the own vehicle and the preceding vehicle travel with a constant inter-vehicle distance by the travel control function. It is also possible to perform follow-up traveling control that automatically follows the preceding vehicle. Furthermore, the control device 160 controls the driving mechanism such as the engine and the brake and the steering mechanism such as the steering actuator based on the detection result of the surrounding area detection sensor 110 and the predetermined traveling condition by the traveling control function. Turn, lane change and parking / parking can be performed automatically. For example, in the present embodiment, when a moving object is detected in the detection area by the moving object detection function by the traveling control function, the control device 160 controls the drive mechanism of the engine and the brake to cross the own vehicle. You can stop in front of the sidewalk.
- FIG. 4 and FIG. 5 are flowcharts showing an example of the traveling control process according to the first embodiment.
- the travel control process described below is executed by the control device 160.
- the traveling control process described below is repeatedly performed at predetermined time intervals.
- step S101 acquisition of vehicle information including vehicle speed information and position information is performed by the vehicle information acquisition function.
- step S102 the detection result of the surrounding detection sensor 110 is acquired as the surrounding information by the surrounding information acquisition function.
- the route search function searches for a planned travel route of the vehicle. For example, when the driver inputs a destination via an input device (not shown) by the route search function, the control device 160 travels the vehicle to the destination based on the map information stored in the database 140. It is possible to search for a route at the same lane level as a planned travel route.
- step S104 identification of a target pedestrian crossing is performed by the pedestrian crossing identification function.
- the control device 160 It can be identified as a target pedestrian crossing.
- the detection area setting function calculates the distance from the current position of the vehicle to the target pedestrian crossing.
- the distance from the current position of the host vehicle to the target pedestrian crossing may be the distance from the current position of the host vehicle to the end of the target pedestrian crossing on the host vehicle side, or from the current position of the host vehicle to the target pedestrian crossing. It may be the distance to the central position in the width direction, or may be from the current position of the vehicle to the position of the node of the target pedestrian crossing.
- the control device 160 determines the distance from the current position of the host vehicle to the target pedestrian crossing by obtaining the sum of the lengths of the links existing from the current position of the host vehicle to the target pedestrian crossing by the detection area setting function. It can be calculated. In addition, when there is no node at the current position of the target pedestrian crossing or the host vehicle, or when an error of a certain value or more occurs between the link length to the target pedestrian crossing and the actual distance traveled by the host vehicle The distance from the current position of the vehicle to the target pedestrian crossing is calculated by calculating the length of the center line of the lane where the vehicle travels from the current position of the vehicle to the target pedestrian crossing based on the map information. Can be calculated.
- the lane center line may be calculated from the left and right lane boundaries of the lane in which the host vehicle travels. Further, the distance from the current position of the vehicle to the target pedestrian crossing may be calculated by calculating the center line of the road on which the vehicle travels, instead of the lane center line.
- the control device 160 reaches the target pedestrian crossing in consideration of the decrease in the vehicle speed when the planned travel route of the host vehicle is inclined or the curvature is large by the detection area setting function.
- Expected time T can be calculated.
- the control device 160 can increase the expected arrival time T to the target pedestrian crossing by the detection area setting function, as the gradient in the planned travel route of the vehicle is larger or as the curvature is larger.
- the control device 160 uses the detection speed setting function to replace the current speed V of the host vehicle with the current speed V of the host vehicle in the above equation (1), and uses the legal speed VL of the road on which the host vehicle travels.
- the expected arrival time T may be calculated.
- the flow line estimation function estimates the flow line of the moving object in the target pedestrian crossing.
- the control device 160 may estimate the moving line S1 of the moving object on the target pedestrian crossing by estimating the moving object to cross on the target pedestrian crossing as shown in FIG. it can.
- step S108 the detection area setting function performs setting of the detection area based on the flow line of the moving object set in step S107. Specifically, the control device 160 sets an area where the flow line of the moving object is estimated in the target pedestrian crossing by using the detection area setting function as a detection area. In step S107, since the flow line of the moving object is estimated on the target pedestrian crossing, the control device 160 sets the region of the target pedestrian crossing B1 as the detection region RT as shown in FIG. 6 by the detection region setting function. can do.
- step S109 the detection area setting function detects a guardrail and a stop line in the vicinity of the target pedestrian crossing. Then, the process proceeds to FIG. 5, and in step S110, based on the detection result in step S109, it is determined by the detection area setting function whether a guardrail and a stop line close to the target pedestrian crossing have been detected. If the guardrail and the stop line close to the target pedestrian crossing can be detected, the process proceeds to step S111. If the guardrail and the stop line can not be detected, the process proceeds to step S113.
- step S111 since the guardrail and stop line close to the target pedestrian crossing are detected, it is determined by the detection area setting function whether the stop line is closer to the target pedestrian than the guardrail.
- FIG. 7 is a diagram for describing a method of setting a detection area when a guard rail and a stop line exist.
- the control device 160 compares the distance D1 from the target pedestrian crossing B1 to the guardrail G1 and the distance D2 from the target pedestrian crossing B1 to the stop line SL1 by the detection area setting function.
- the control device 160 determines that the guardrail G1 is closer to the target pedestrian crossing B1 than the stop line SL1 by the detection area setting function.
- step S112 If it is determined that the stop line is closer to the target pedestrian crossing than the guardrail, the process proceeds to step S112. On the other hand, if it is determined that the guardrail is closer to the target pedestrian crossing than the stop line, the step It progresses to S115.
- step S110 If it is determined in step S110 that both the guardrail and the stop line can not be detected, the process proceeds to step S113.
- step S113 based on the detection result of step S109, it is determined by the detection area setting function whether a stop line approaching the target pedestrian crossing has been detected. When the stop line is detected, the process proceeds to step S112. On the other hand, when the stop line is not detected, the process proceeds to step S114.
- step S114 based on the detection result in step S109, the detection area setting function determines whether a guardrail in proximity to the target pedestrian crossing has been detected. If a guardrail is detected, the process proceeds to step S115. If no guardrail is detected, that is, if neither a stop line nor a guardrail is detected, the process proceeds to step S116.
- step S112 the detection area is expanded to the position of the stop line by the detection area setting function.
- FIG. 8 is a diagram showing an example of a detection area in the case where a stop line is present. In the example shown in FIG.
- FIG. 9 is a diagram for explaining the setting method of the detection area in the scene shown in FIG. 7, and as shown in FIG.
- the distance D1 from the target pedestrian crossing B1 to the guardrail G1 is It is shorter than the distance D2 from the target pedestrian crossing B1 to the stop line SL1. Further, the distances from the target pedestrian crossing B1 to the guard rails G2 to G4 are respectively shorter than the distances from the target pedestrian crossing B1 to the stop lines SL1 and SL2. Therefore, the detection area RT is expanded in the width direction (Y direction) of the target pedestrian crossing B1 to the end portions GE1 to GE4 of the guardrails G1 and G2 on the target pedestrian crossing B1 side by the detection region setting function.
- Step S116 the detection area setting function expands the detection area based on the distance from the host vehicle to the target pedestrian crossing.
- FIG. 10A shows an example of the relationship between the distance from the host vehicle to the target pedestrian crossing and the detection accuracy of the surrounding area detection sensor 110. As shown in FIG. 10A, as the distance from the host vehicle to the target pedestrian crossing increases, the detection accuracy of the surrounding detection sensor 110 in the vicinity of the target pedestrian crossing decreases.
- the control device 160 uses the detection area setting function to increase the distance from the target pedestrian crossing to the subject vehicle (when the distance from the target pedestrian crossing to the subject vehicle is equal to or greater than a predetermined distance,
- the detection area is expanded in the width direction of the target pedestrian crossing (compared to the case where the distance to the vehicle is less than a predetermined distance).
- the distance from the target pedestrian crossing B1 to the host vehicle V1 is larger than that in the example shown in FIG.
- the detection area RT is expanded in the width direction (Y direction) of the target pedestrian crossing B1.
- the detection area setting function is configured to extend the detection area RT in the width direction (Y direction) of the target pedestrian crossing B1 by a distance obtained by multiplying the distance from the target pedestrian crossing B1 to the host vehicle V1 by a predetermined proportional constant. It is also good.
- the flow line estimation function estimates a flow line of a moving object waiting before crossing the target pedestrian crossing in a road configuration close to the target pedestrian crossing.
- the control device 160 causes the moving object to move the width of the sidewalk SW and the width of the roadside band SS in the length direction (X direction) of the target pedestrian crossing B1 by the flow line estimation function.
- flow line S2, S3 of the moving object which stands by in sidewalk SW or roadside zone SS can be estimated.
- the moving object crossing the target pedestrian crossing B1 is a position away from the target pedestrian crossing B1 among the sidewalks or the roadside belt close to the target pedestrian crossing (for example, above the target pedestrian crossing B1 in FIG. 11 or It is also conceivable to wait at the lower position). Therefore, the control device 160 can estimate the flow line of the moving object in the range not exceeding the stop line and the guardrail in the area of the sidewalk and the roadside zone close to the target pedestrian crossing by the flow line estimation function. For example, in the example shown in FIG. 11, the control device 160 uses the flow line estimation function in the width direction (Y direction) of the target pedestrian crossing B1 among the areas of the sidewalk SW or the roadside band SS close to the detection area RT.
- the flow lines S21 to S23 and S31 to S33 of the moving object can be estimated in the area RW1 of the sidewalk SW between the guardrail G1 and the guardrail G2, and the roadside band SS is between the guardrail G3 and the guardrail G4.
- the flow lines S31 to S33 of the moving object are estimated in the region RW2 between them.
- step S118 the area of the sidewalk or the roadside band estimated as the flow line of the moving object in step S117 is set as the standby area by the detection area setting function.
- the sidewalk SW estimated as the moving line of the moving object in step S116 and the areas RW1 and RW2 of the roadside zone SS are set as the standby areas.
- the detection area setting function causes the length LW of the standby area set in step S118 in the length direction of the target pedestrian crossing, and the movement distance LX in which the moving object moves before the vehicle reaches the target pedestrian crossing.
- the control device 160 acquires the moving speed of the moving object stored in the ROM of the control device 160 by the detection area setting function.
- the control device 160 can acquire the average moving speed Vp (for example, 80 meters per minute) of the pedestrian stored in the ROM of the control device 160 as the moving speed of the moving object by the detection area setting function. .
- the control device 160 uses the detection area setting function to set the length LW in the length direction of the target pedestrian crossing in the standby area and the movement distance LX in which the moving object moves before the own vehicle reaches the target pedestrian crossing Compare.
- the length LW1 of the waiting area RW1 is longer than the moving distance LX1 in which the moving object moves before the vehicle V1 reaches the target pedestrian crossing B1.
- the length LW2 of the standby area RW2 is the same as the moving distance LX2 in which the moving object moves until the host vehicle V1 reaches the target pedestrian crossing B1.
- step S119 when the length LW of the standby area is larger than the moving distance LX of the moving object, the process proceeds to step S120.
- step S120 the detection area setting function expands the detection area in the length direction of the target pedestrian crossing to a position within the standby area separated by the movement distance LX from the target pedestrian crossing.
- the control device 160 since the length LW1 of the waiting area SW1 is longer than the moving distance LX1 of the moving object, the control device 160 detects the target pedestrian crossing B1 as shown in FIG.
- the detection area RT is expanded in the length direction (X direction) to a position P1 in the standby area RW1 which is separated from the target pedestrian crossing B1 by the moving distance LX.
- step S119 when the length LW of the standby area is equal to or less than the moving distance LX of the moving object, the process proceeds to step S121.
- step S121 the detection area is expanded to the entire standby area by the detection area setting function. For example, in the example shown in FIG. 12, since the length LW2 of the waiting area SW1 is the same length as the moving distance LX2 of the moving object, the detection area setting function extends the detection area RT to the entire waiting area RW2.
- step S122 the moving object detection function detects a moving object in the detection area expanded in step S120 or step S121. Then, in step S123, the travel control function determines the travel plan of the host vehicle based on the detection result of the moving object in step S122, and travel control is performed. For example, in the present embodiment, when a moving object is detected in the detection area, control is performed to stop the host vehicle in front of the target pedestrian crossing.
- a pedestrian crossing through which the vehicle is scheduled to pass is identified as a target pedestrian crossing, and a road configuration close to the target pedestrian crossing is detected. Then, based on the road configuration close to the target pedestrian crossing, the flow line of the moving object traversing the target pedestrian crossing is estimated. Further, an area including the estimated movement line of the moving object is set as a detection area, and the moving object is detected in the detection area.
- the moving object moves when the moving object crosses the target pedestrian crossing by estimating the flow line of the moving object crossing the target pedestrian crossing based on the road configuration close to the target pedestrian crossing Since an area in which the object is likely to move can be set as the detection area, it is possible to appropriately detect a moving object crossing the target pedestrian crossing. Also, by setting an area where the moving object is likely to move when the moving object crosses the target pedestrian crossing as a detection area, compared to the case where the moving object is detected in all the areas around the host vehicle. The detection accuracy of the moving object can be enhanced.
- the present embodiment by detecting the sidewalk and the roadside zone close to the target pedestrian crossing as the road configuration close to the target pedestrian crossing, not only the moving object crossing the target pedestrian crossing but also the target pedestrian crossing In order to cross the road, moving objects waiting on the sidewalk or roadside zone of the target pedestrian crossing can also be appropriately detected.
- the moving distance LX to which the moving object moves is calculated until the host vehicle V1 reaches the target crosswalk B1.
- the detection area RT is expanded to an area where the distance from the target pedestrian crossing B1 is equal to or less than the movement distance LX among the standby areas RW1 and RW2 in which the flow line of the moving object waiting in the road configuration SW and SS is estimated.
- the detection area RT is expanded to an area where the distance from the target pedestrian crossing B1 is equal to or less than the movement distance LX among the standby areas RW1 and RW2 in which the flow line of the moving object waiting in the road configuration SW and SS is estimated.
- the detection region RT is in the length direction (Y direction) of the target pedestrian crossing B1. It extends to the positions of the stop lines SL1 and SL2. Thereby, the moving object which moves between a target pedestrian crossing and a stop line can be detected appropriately.
- the guard rails G1 to G4 are installed on the sidewalk SW or the roadside band SS close to the target pedestrian crossing B1, as shown in FIG.
- RT is expanded in the width direction (Y direction) of the target pedestrian crossing B1 to a position corresponding to the end portions GE1 to GE4 of the guardrails G1 to G4 on the side of the target pedestrian crossing B1.
- the travel control device 100 for a vehicle according to the second embodiment has the same configuration as the travel control device 100 for a vehicle according to the first embodiment, and operates in the same manner as the first embodiment except that it operates as described below. It is similar.
- control device 160 has a crossing possibility determining function of determining whether or not a nearby pedestrian crossing in proximity to the target pedestrian crossing can be traversed, and a moving object And an inflow area setting function of setting an area on the road configuration moving toward the target pedestrian crossing as the inflow area.
- the crossing permission determination function is a function that can determine whether or not the adjacent pedestrian crossing in proximity to the target pedestrian crossing can be crossed.
- the control device 160 can acquire a captured image of a vehicular traffic signal installed in front of the target pedestrian crossing from the camera attached to the host vehicle by the crossing possibility determination function. Then, the control device 160 discriminates the signal of the vehicle traffic signal in front of the target pedestrian crossing on the basis of the acquired captured image by the crossing possibility determination function, and based on the signal of the vehicular signal, the pedestrian traffic signal of the proximity pedestrian crossing Signal can be determined. For example, in the case where the signal of the vehicular traffic signal is a signal for permitting the progress of the vehicle, it is possible to determine that the close pedestrian crossing can not be crossed by the crossing permission determination function.
- the control device 160 sets an area including the area of the proximity pedestrian crossing as a detection area, while the proximity pedestrian crossing is If it is determined that crossing can not be made, an area not including the area of the near pedestrian crossing can be set as the detection area.
- the inflow area setting function of the control device 160 is a function capable of setting an area on the road configuration when the moving object moves toward the target pedestrian crossing as an inflow area.
- the controller 160 can first estimate the flow line of a moving object moving on a sidewalk, a roadside zone, a median strip or a nearby pedestrian crossing in proximity to the target pedestrian crossing by the inflow area setting function.
- FIG. 14 is a diagram illustrating an example of flow lines on the road configuration of a moving object moving toward a target pedestrian crossing.
- the controller 160 estimates the flow lines S4 and S5 at the sidewalk SW close to the target pedestrian crossing B1 by the inflow area setting function, and the central separation zone M and the near pedestrian crossing B2
- the flow line S6 can be estimated at.
- the control device 160 can set an area on the road configuration in which the moving object moves toward the target pedestrian crossing as the inflow area based on the flow line of the moving object in the road configuration by the inflow area setting function. .
- the control device 160 uses the inflow area setting function to estimate the arrival time T until the host vehicle reaches the target pedestrian crossing, and the moving speed Vp of the moving object.
- the moving distance LX in which the moving object moves can be calculated until the host vehicle reaches the target pedestrian crossing.
- the control device 160 uses the inflow area setting function to set the flow line of the moving object among the areas of the sidewalk SW, the roadside zone, the center divider and the near pedestrian crossing adjacent to the target pedestrian crossing. It is possible to set, as the inflow area, an area in which the distance from the target pedestrian crossing is equal to or less than the movement distance LX in which the moving object moves before the vehicle reaches the target pedestrian crossing.
- the control device 160 uses the inflow area setting function to set the moving object along the flow lines S4 and S5 of the sidewalk SW close to the target crosswalk B1 from the target crosswalk B1.
- a region RF1 in which the distance is equal to or less than the moving distance LX in which the moving object moves before the vehicle V1 reaches the target pedestrian crossing B1 can be set as the inflow region.
- control device 160 uses the inflow area setting function to set the distance from the target pedestrian crossing B1 along the flow line S6 of the moving object of the central separation zone M and the proximal pedestrian crossing B2 close to the target pedestrian crossing B1.
- a region RF2 that is equal to or less than the moving distance LX in which the moving object moves before the vehicle V1 reaches the target pedestrian crossing B1 can be set as the inflow region.
- the control device 160 does not set the area of the near pedestrian crossing as the inflow area when the moving object can not cross the near pedestrian crossing as a result of the judgment by the crossing possibility judgment function by the inflow area setting function. For example, in the example shown in FIG. 15, although a part of proximity pedestrian crossing B2 is within the range of movement distance LX from object pedestrian crossing B1, it is determined that proximity pedestrian crossing B2 can not be crossed according to the result of crossing judgment. It is done. Therefore, the control device 160 sets only the area of the central separation zone M as the inflow area RF2 and does not include the area of the near pedestrian crossing B2 in the inflow area RF2 by the inflow area setting function.
- the detection area setting function according to the second embodiment is a function that can set an area including the area of the target pedestrian crossing and the inflow area as a detection area.
- the control device 160 can set the area RB1 of the target pedestrian crossing B1 and the inflow areas RF1 and R2 as the detection area by the detection area setting function.
- a region where the distance from the target pedestrian crossing B1 is equal to or less than the movement distance LX in the proximity pedestrian crossing B2 is also a detection region RT It can be included.
- steps S101 to S116 are the same as in the first embodiment, and thus the description thereof is omitted.
- step S201 the inflow area setting function estimates a flow line of a moving object moving toward the target pedestrian crossing based on the road configuration close to the target pedestrian crossing.
- the control device 160 estimates the flow lines S4 to S6 of the moving object moving toward the target pedestrian crossing as shown in FIG. 14 based on the road configuration close to the target pedestrian crossing by the inflow area setting function. can do.
- the inflow area setting function performs setting of the inflow area based on the flow line of the moving object estimated in step S201.
- the control device 160 is a region along the flow lines S4 to S6 of the moving object moving toward the object pedestrian crossing B1 by the inflow region setting function, and the distance from the object pedestrian crossing B1
- regions RF1 and R2 that are equal to or less than the movement distance LX in which the moving object moves before the vehicle V1 reaches the target pedestrian crossing B1 can be set as the inflow region.
- the control device 160 does not include the area of the close pedestrian crossing B2 in the inflow area when the moving object can not cross the near pedestrian crossing B2 by the inflow area setting function.
- step S203 setting of the detection area is performed by the detection area setting function.
- the control device 160 detects the area including the area of the target pedestrian crossing B1 and the inflow areas RF1 and RF2 set in step S202 as shown in FIG. 16 by the detection area setting function. It can be set as RT.
- the road configuration in which the moving object moves toward the target pedestrian crossing based on the flow line of the moving object in the road configuration near the target pedestrian crossing (sidewalk, roadside zone, central separation
- An area where a moving object can reach the target pedestrian crossing before the own vehicle reaches the target pedestrian crossing is set as an inflowing region among the regions of the band and the nearby pedestrian crossing).
- an area including the area of the target pedestrian crossing and the inflow area is set as a detection area.
- the central separation zone is moved to set the area of the central separation zone M connecting the target pedestrian crossing B1 and the close pedestrian crossing B2 as the inflow region RF2. It is also possible to appropriately detect moving objects heading for the target pedestrian crossing. Further, in the present embodiment, since the inflow area can be set on the close pedestrian crossing, it is possible to appropriately detect a moving object moving toward the target pedestrian crossing by moving the near pedestrian crossing. Furthermore, when the proximity pedestrian crossing can not be traversed, by not including the area of the proximity pedestrian crossing in the detection region, among the moving objects present around the host vehicle, the movable object capable of moving to the target pedestrian crossing It can be detected properly.
- the moving object in the target pedestrian crossing is exemplified as the moving object moving on the target pedestrian crossing, but the configuration is not limited to this configuration.
- the flow line estimation function is a moving object in a range not exceeding stop lines SL1 and SL2 in front of target pedestrian crossing B1, ie, in a range from target pedestrian crossing B1 to stop lines SL1 and SL2.
- the moving object it may be possible to estimate the flow lines S1 to S3, S7 and S8 of the moving object. Further, as shown in FIG.
- the moving object moves the object pedestrian crossing side B1 side than the guard rails G1 and G2 as shown in FIG.
- flow lines S7 and S8 of a moving object may be able to be estimated.
- the flow line estimation function targets the target cross walk B1 from the stop lines SL1 and SL2 and the guard rails G1 and G2 from the side closer to the target pedestrian crossing B1.
- the moving line of the moving object may be estimated as the moving object moves. For example, in the example shown in FIG.
- the present invention is not limited to this configuration, and the moving object is repeatedly detected to calculate the actual moving speed of the moving object, and based on the calculated actual moving speed of the moving object, the own vehicle crosses the target It is possible to calculate a moving distance in which the moving object moves before reaching the sidewalk.
- the present invention is not limited to this configuration.
- the detection area RT when it is determined that the moving object can not move the target pedestrian crossing B1 based on the signal display of the traffic signal
- the area of the pedestrian crossing B1 may not be set as the detection area RT.
- the configuration is exemplified in which the area in which the moving object can move to the target pedestrian crossing is set as the inflow region until the host vehicle reaches the target pedestrian crossing
- a predetermined area of the road configuration close to the target pedestrian crossing may be set as the inflow area.
- an area up to the position of the stop line in the road configuration close to the target pedestrian crossing can be set as the detection area.
- the traveling control device 100 can be configured to receive map information from a server installed outside the vehicle.
- the control device 160 or the control device 160 and the database 140 of the traveling control device 100 may be disposed outside the vehicle and travel control of the vehicle by remote control.
- the ambient detection sensor 110 corresponds to the detector of the present invention
- the control device 160 corresponds to the controller of the present invention.
- traveling control device 110 ... surrounding detection sensor 120 . vehicle speed sensor 130 ... vehicle position detecting device 140 ... database 150 . driving control device 160 ... control device
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Abstract
Description
図1は、本発明の実施形態に係る車両の走行制御装置100の構成を示す図である。図1に示すように、本実施形態に係る車両の走行制御装置100は、周囲検出センサ110と、車速センサ120と、自車位置検出装置130と、データベース140と、駆動制御装置150と、制御装置160と、を有する。これらの装置は、相互に情報の授受を行うためにCAN(Controller Area Network)その他の車載LANによって接続されている。
続いて、本発明の第2実施形態に係る車両の走行制御装置について説明する。第2実施形態に係る車両の走行制御装置100は、第1実施形態の車両の走行制御装置100と同様の構成を有し、以下に説明するように動作すること以外は、第1実施形態と同様である。
110…周囲検出センサ
120…車速センサ
130…自車位置検出装置
140…データベース
150…駆動制御装置
160…制御装置
Claims (10)
- 自車両が通過する予定の横断歩道を対象横断歩道として特定し、
前記対象横断歩道に近接する道路構成を検出し、
前記道路構成に基づいて前記対象横断歩道を横断する移動物体の動線を推定し、
推定された動線を含む領域を、前記自車両の周囲の対象物を検出する検出器の検出領域として設定し、
前記検出領域において前記検出器により前記移動物体を検出し、
前記検出器の検出結果に基づいて、前記自車両の走行を制御する車両の走行制御方法。 - 請求項1に記載の車両の走行制御方法であって、
前記道路構成として、前記対象横断歩道に近接する歩道、路側帯、横断歩道および中央分離帯のうち少なくとも1つを検出する車両の走行制御方法。 - 請求項1または2に記載の車両の走行制御方法であって、
前記移動物体の移動速度に基づいて、前記自車両が前記対象横断歩道に到達するまでに前記移動物体が移動する移動距離を算出し、推定された動線の前記道路構成上の領域のうち、前記動線に沿う、前記対象横断歩道から前記移動距離以下の領域を、前記検出領域として設定する車両の走行制御方法。 - 請求項3に記載の車両の走行制御方法であって、
前記道路構成における前記動線に基づいて、前記移動物体が、前記対象横断歩道を横断する前に前記道路構成上で待機する領域を、待機領域として設定し、
前記待機領域のうち前記対象横断歩道からの距離が前記移動距離以下となる領域を、前記検出領域として設定する車両の走行制御方法。 - 請求項1~4のいずれか一項に記載の車両の走行制御方法であって、
前記自車両から前記対象横断歩道までの距離が所定距離以上である場合には、前記自車両から前記対象横断歩道までの距離が前記所定距離未満である場合と比べて、前記検出領域を、前記対象横断歩道の幅方向に広くする車両の走行制御方法。 - 請求項1~5のいずれか一項に記載の車両の走行制御方法であって、
前記対象横断歩道の手前に停止線が存在する場合には、前記対象横断歩道から前記停止線までの領域を含む領域を、前記検出領域として設定する車両の走行制御方法。 - 請求項1~5のいずれか一項に記載の走行制御方法であって、
前記道路構成にガードレールが設置されている場合には、車両が走行する道路領域のうち、前記対象横断歩道から前記ガードレールの前記対象横断歩道側の端部位置までの領域を含む領域を、前記検出領域として設定する車両の走行制御方法。 - 請求項1~7のいずれか一項に記載の車両の走行制御方法であって、
前記対象横断歩道と前記対象横断歩道に近接する横断歩道との間に中央分離帯がある場合に、前記中央分離帯の領域を含む領域を前記検出領域として設定する車両の走行制御方法。 - 請求項1~8のいずれか一項に記載の走行制御方法であって、
信号機の信号表示に基づいて、前記対象横断歩道に近接する横断歩道の領域を含む領域を、前記検出領域として設定するかを決定する車両の走行制御方法。 - 周囲の対象物を検出する検出器と、前記検出器の検出結果に基づいて、自車両の走行を制御する制御器とを備える走行制御装置であって、
前記制御器は、
前記自車両が通過する予定の横断歩道を対象横断歩道として特定し、
前記対象横断歩道に近接する道路構成を検出し、
前記道路構成に基づいて前記対象横断歩道を横断する移動物体の動線を推定し、
推定された動線を含む領域を前記検出器の検出領域として設定し、
前記検出領域内において前記移動物体を検出する走行制御装置。
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JP7162464B2 (ja) | 2018-08-06 | 2022-10-28 | 日産自動車株式会社 | 運転支援方法及び運転支援装置 |
JP2022045818A (ja) * | 2020-09-09 | 2022-03-22 | 株式会社デンソーテン | 横断制御装置および横断制御方法 |
JP2023143309A (ja) * | 2022-03-25 | 2023-10-06 | 本田技研工業株式会社 | 制御装置 |
JP7398497B2 (ja) | 2022-03-25 | 2023-12-14 | 本田技研工業株式会社 | 制御装置 |
Also Published As
Publication number | Publication date |
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US20190023239A1 (en) | 2019-01-24 |
KR20180104089A (ko) | 2018-09-19 |
EP3410419A4 (en) | 2019-02-20 |
RU2719497C2 (ru) | 2020-04-20 |
US11124163B2 (en) | 2021-09-21 |
BR112018015498A2 (pt) | 2019-01-22 |
MX2018008988A (es) | 2018-11-19 |
CN108604419B (zh) | 2021-02-09 |
RU2018129092A3 (ja) | 2020-03-06 |
CN108604419A (zh) | 2018-09-28 |
EP3410419B1 (en) | 2020-03-04 |
CA3012591A1 (en) | 2017-08-03 |
EP3410419A1 (en) | 2018-12-05 |
JPWO2017130643A1 (ja) | 2018-11-15 |
RU2018129092A (ru) | 2020-03-02 |
JP6544445B2 (ja) | 2019-07-17 |
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