WO2012114478A1 - 運転支援装置、運転支援方法及び運転支援プログラム - Google Patents
運転支援装置、運転支援方法及び運転支援プログラム Download PDFInfo
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- WO2012114478A1 WO2012114478A1 PCT/JP2011/053997 JP2011053997W WO2012114478A1 WO 2012114478 A1 WO2012114478 A1 WO 2012114478A1 JP 2011053997 W JP2011053997 W JP 2011053997W WO 2012114478 A1 WO2012114478 A1 WO 2012114478A1
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- obstacle
- host vehicle
- vehicle
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- 238000000034 method Methods 0.000 title claims description 31
- 230000008859 change Effects 0.000 claims description 8
- 230000033001 locomotion Effects 0.000 description 25
- 230000001133 acceleration Effects 0.000 description 22
- 230000000875 corresponding effect Effects 0.000 description 10
- 238000001514 detection method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 7
- 230000002596 correlated effect Effects 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
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- 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
- 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
- B60W30/14—Adaptive cruise control
- B60W30/143—Speed control
-
- 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
- B60W2552/00—Input parameters relating to infrastructure
-
- 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
- B60W2552/00—Input parameters relating to infrastructure
- B60W2552/05—Type of road, e.g. motorways, local streets, paved or unpaved roads
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- 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
- B60W2552/00—Input parameters relating to infrastructure
- B60W2552/53—Road markings, e.g. lane marker or crosswalk
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- 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
- B60W2554/40—Dynamic objects, e.g. animals, windblown objects
- B60W2554/404—Characteristics
- B60W2554/4041—Position
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- 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
- B60W2556/00—Input parameters relating to data
- B60W2556/45—External transmission of data to or from the vehicle
- B60W2556/50—External transmission of data to or from the vehicle of positioning data, e.g. GPS [Global Positioning System] data
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- 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
- B60W2720/00—Output or target parameters relating to overall vehicle dynamics
- B60W2720/10—Longitudinal speed
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- 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
- B60W2720/00—Output or target parameters relating to overall vehicle dynamics
- B60W2720/10—Longitudinal speed
- B60W2720/103—Speed profile
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- 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
- B60W2754/00—Output or target parameters relating to objects
- B60W2754/10—Spatial relation or speed relative 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
- B60W2754/00—Output or target parameters relating to objects
- B60W2754/10—Spatial relation or speed relative to objects
- B60W2754/20—Lateral distance
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- 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
- B60W2754/00—Output or target parameters relating to objects
- B60W2754/10—Spatial relation or speed relative to objects
- B60W2754/30—Longitudinal distance
Definitions
- the present invention relates to a driving support device, a driving support method, and a driving support program, and more particularly, to a driving support device, a driving support method, and a driving support program for determining the state of the host vehicle when passing near an obstacle.
- a device that supports the driver's driving has been proposed.
- the driving tendency parameter of the driver is acquired, and the driving tendency parameter of the passenger of the vehicle is acquired.
- the apparatus of patent document 1 calculates the difference of a driver
- the apparatus of Patent Document 1 aims to provide a comfortable ride feeling to a passenger who has driving experience.
- the present invention has been made in view of such circumstances, and its purpose is to provide a driving support device, a driving support method, and a driving support program capable of determining the state of the host vehicle that is more realistic. It is to provide.
- the present invention relates to the maximum distance that the own vehicle can take with respect to the obstacle when passing near the obstacle, and the distance between the own vehicle and the obstacle when passing near the obstacle, and the speed of the own vehicle.
- the driving support device includes a target determination unit that determines a target speed of the host vehicle when passing through the vicinity of an obstacle based on the associated relationship.
- the target speed of the host vehicle when passing the vicinity of the obstacle is determined based on the relations associated with each other. Therefore, for example, the target determination unit moves the vehicle in the vicinity of the obstacle so that the speed is equal to or lower than the speed associated with the predetermined interval within the range of the maximum interval that can be taken for the obstacle. It becomes possible to determine the target speed of the host vehicle when passing. Therefore, it is possible to determine the state of the host vehicle that is more realistic.
- the target determination unit determines the target interval between the host vehicle and the obstacle when passing near the obstacle within the range of the maximum interval that the host vehicle can take with respect to the obstacle when passing near the obstacle. Can be determined.
- the target determination unit allows the host vehicle and the obstacle to pass through the vicinity of the obstacle within the range of the maximum distance that the host vehicle can take with respect to the obstacle when passing through the vicinity of the obstacle. Determine the target interval.
- the target determination unit determines the target interval within the range of the maximum interval that can be taken for the obstacle, and determines the target speed so as to be a speed equal to or lower than the speed associated with the determined target interval. It becomes possible. Therefore, it is possible to determine a more realistic state of the host vehicle.
- the target determination unit determines the distance between the host vehicle and the obstacle when passing through the vicinity of the obstacle predicted based on the current traveling state of the host vehicle as the target interval, and In the relationship in which the distance between the host vehicle and the obstacle and the speed of the host vehicle are associated with each other, a speed equal to or lower than the speed corresponding to the determined target interval can be determined as the target speed.
- the target determination unit determines the distance between the host vehicle and the obstacle when passing through the vicinity of the obstacle predicted based on the current traveling state of the host vehicle as the target interval, and determines the vicinity of the obstacle.
- the speed corresponding to the determined target interval is determined as the target speed in the relationship in which the distance between the host vehicle and the obstacle when passing and the speed of the host vehicle are associated with each other. For this reason, the target determination unit maintains the current travel state of the host vehicle and minimizes the intervention of the driver in the lateral direction of the host vehicle, and the target speed corresponding to the target interval. And can be determined. Therefore, it is possible to prevent the driver from feeling uncomfortable.
- the “running state” of the host vehicle refers to the speed, yaw angle, yaw rate, lateral acceleration, longitudinal acceleration of the host vehicle, the lateral distance between the other vehicle and the host vehicle, and other driver operating states. It is expressed from the quantity.
- the target determination unit satisfies the correlated relationship between the own vehicle and the distance between the obstacles and the speed of the own vehicle when passing near the obstacle, and is the minimum traveling from the current traveling state of the own vehicle.
- the distance between the host vehicle and the obstacle evaluated to be able to be achieved by the state change and the speed of the host vehicle can be determined as the target interval and the target speed.
- the target determination unit satisfies the mutually associated relationship between the own vehicle and the distance between the obstacle and the speed of the own vehicle when passing in the vicinity of the obstacle, and the current running state of the own vehicle.
- the target vehicle and the distance between obstacles and the speed of the host vehicle that are evaluated as being possible to be achieved with the minimum change in the driving state are determined as the target interval and the target speed. For this reason, it becomes possible to determine the target interval and the target speed that can be achieved by changing the minimum traveling state. For this reason, when driving assistance is implemented, disturbance of the host vehicle can be reduced.
- the target determination unit satisfies the mutually associated relationship between the own vehicle and the distance between the obstacle and the speed of the own vehicle when passing through the vicinity of the obstacle when the own vehicle is accelerating, and
- the own vehicle and the distance between obstacles and the speed of the own vehicle that can be achieved only by steering are determined as the target distance and the target speed, and the own vehicle is steered toward the side that narrows the distance from the obstacle.
- the host vehicle and the obstacle that satisfy the mutually correlated relationship between the own vehicle and the distance between the obstacle and the speed of the host vehicle when passing in the vicinity of the obstacle and can be achieved only by braking.
- the own vehicle When the distance between the objects and the speed of the own vehicle are determined as the target distance and the target speed and the own vehicle is steered to increase the distance from the obstacle, the own vehicle when passing the vicinity of the obstacle And the distance between obstacles and the speed of the vehicle Satisfy the obtained relationship, and the distance between the steering only the vehicle and the obstacle can be achieved in and the subject vehicle speed, it shall be determined as the target distance and the target speed.
- the target determination unit associates the host vehicle and the distance between the obstacles and the speed of the host vehicle when they pass near the obstacle.
- the distance between the host vehicle and the obstacle that can be achieved only by steering and the speed of the host vehicle are determined as the target interval and the target speed, and the host vehicle is to narrow the distance from the obstacle.
- the vehicle and the distance between obstacles and the speed of the vehicle can be satisfied with each other when passing through the vicinity of the obstacle, and can be achieved only by braking.
- the distance between the host vehicle and the obstacle and the speed of the host vehicle are determined as the target interval and the target speed, and when the host vehicle is steered to increase the distance from the obstacle, it passes near the obstacle.
- the distance between the vehicle and obstacles and the speed of the vehicle Satisfy the relationship associated with have, and can be achieved by the steering only the speed of the spacing and the vehicle of the own vehicle and the obstacle, it is determined as the target distance and the target speed. For this reason, it is possible to determine the target interval and the target speed with reduced intervention for the driving operation of the driver by a simple process. Therefore, it is possible to prevent the driver from feeling uncomfortable with a simple process.
- the target determination unit determines a target interval of the host vehicle and the obstacle and a target speed of the host vehicle when passing the reference line set in the vicinity of the obstacle, and the reference line is further away from the obstacle. It can be set to pass through a point that is a short distance from the current position of.
- the target determination unit determines the target interval of the host vehicle and the obstacle and the target speed of the host vehicle when passing through the reference line set near the obstacle, and the reference line is determined from the obstacle. It is set so as to pass through a point closer to the current position of the host vehicle as the distance increases. For this reason, as the distance from the obstacle and the visibility of the blind spot due to the obstacle become easier, the target interval and the target speed are determined earlier at a short distance from the current position of the host vehicle, and the reality and driver It is possible to determine the state of the vehicle that matches the sense of the vehicle.
- the present invention also provides a storage unit storing the relationship between the distance between the host vehicle and the obstacle and the speed of the host vehicle when passing through the vicinity of the obstacle, and the host vehicle when passing through the vicinity of the obstacle. Passes through the vicinity of the obstacle based on the maximum interval calculation unit that calculates the maximum interval that can be taken for the obstacle, the relationship stored in the storage unit, and the maximum interval calculated by the maximum interval calculation unit And a target determination unit that determines a target speed of the host vehicle when performing the operation.
- the present invention relates to the maximum distance that the own vehicle can take with respect to the obstacle when passing near the obstacle, the distance between the own vehicle and the obstacle when passing near the obstacle, and the speed of the own vehicle.
- This is a driving support method including a target determining step of determining a target speed of the host vehicle when passing through the vicinity of an obstacle based on the relations associated with each other.
- the target determining step is a target interval between the host vehicle and the obstacle when passing through the vicinity of the obstacle within a range of the maximum distance that the host vehicle can take with respect to the obstacle when passing through the vicinity of the obstacle. Can be determined.
- the target determining step determines the distance between the host vehicle and the obstacle when passing through the vicinity of the obstacle predicted based on the current traveling state of the host vehicle as the target interval, and In the relationship in which the distance between the host vehicle and the obstacle and the speed of the host vehicle are associated with each other, a speed equal to or lower than the speed corresponding to the determined target interval can be determined as the target speed.
- the target determination step satisfies the correlated relationship between the own vehicle and the distance between the obstacle and the speed of the own vehicle when passing in the vicinity of the obstacle, and is the minimum running from the current running state of the own vehicle.
- the distance between the host vehicle and the obstacle evaluated to be able to be achieved by the state change and the speed of the host vehicle can be determined as the target interval and the target speed.
- the target determining step satisfies a mutually associated relationship between the own vehicle and the distance between the obstacle and the speed of the own vehicle when passing through the vicinity of the obstacle when the own vehicle is accelerating, and
- the own vehicle and the distance between obstacles and the speed of the own vehicle that can be achieved only by steering are determined as the target distance and the target speed, and the own vehicle is steered toward the side that narrows the distance from the obstacle.
- the host vehicle and the obstacle that satisfy the mutually correlated relationship between the own vehicle and the distance between the obstacle and the speed of the host vehicle when passing in the vicinity of the obstacle and can be achieved only by braking.
- the own vehicle When the distance between the objects and the speed of the own vehicle are determined as the target distance and the target speed and the own vehicle is steered to increase the distance from the obstacle, the own vehicle when passing the vicinity of the obstacle And the distance between obstacles and the speed of the vehicle Satisfies the relationship, and the distance between the steering only the vehicle and the obstacle can be achieved in and the speed of the vehicle, it shall be determined as the target distance and the target speed.
- the target determining step determines the target interval of the host vehicle and the obstacle when passing through the reference line set in the vicinity of the obstacle, and the target speed of the host vehicle. It can be set to pass through a point that is a short distance from the current position of.
- the present invention relates to the maximum distance that the own vehicle can take with respect to the obstacle when passing near the obstacle, the distance between the own vehicle and the obstacle when passing near the obstacle, and the speed of the own vehicle.
- This is a driving support program that causes a computer to execute a target determining step for determining a target speed of the host vehicle when passing through the vicinity of an obstacle based on the relations associated with each other.
- the target determining step is a target interval between the host vehicle and the obstacle when passing through the vicinity of the obstacle within a range of the maximum distance that the host vehicle can take with respect to the obstacle when passing through the vicinity of the obstacle. Can be determined.
- the target determining step determines the distance between the host vehicle and the obstacle when passing through the vicinity of the obstacle predicted based on the current traveling state of the host vehicle as the target interval, and In the relationship in which the distance between the host vehicle and the obstacle and the speed of the host vehicle are associated with each other, a speed equal to or lower than the speed corresponding to the determined target interval can be determined as the target speed.
- the target determination step satisfies the correlated relationship between the own vehicle and the distance between the obstacle and the speed of the own vehicle when passing in the vicinity of the obstacle, and is the minimum running from the current running state of the own vehicle.
- the distance between the host vehicle and the obstacle evaluated to be able to be achieved by the state change and the speed of the host vehicle can be determined as the target interval and the target speed.
- the target determining step satisfies a mutually associated relationship between the own vehicle and the distance between the obstacle and the speed of the own vehicle when passing through the vicinity of the obstacle when the own vehicle is accelerating, and
- the own vehicle and the distance between obstacles and the speed of the own vehicle that can be achieved only by steering are determined as the target distance and the target speed, and the own vehicle is steered toward the side that narrows the distance from the obstacle.
- the host vehicle and the obstacle that satisfy the mutually correlated relationship between the own vehicle and the distance between the obstacle and the speed of the host vehicle when passing in the vicinity of the obstacle and can be achieved only by braking.
- the own vehicle When the distance between the objects and the speed of the own vehicle are determined as the target distance and the target speed and the own vehicle is steered to increase the distance from the obstacle, the own vehicle when passing the vicinity of the obstacle And the distance between obstacles and the speed of the vehicle Satisfies the relationship, and the distance between the steering only the vehicle and the obstacle can be achieved in and the speed of the vehicle, it shall be determined as the target distance and the target speed.
- the target determining step determines the target interval of the host vehicle and the obstacle when passing through the reference line set in the vicinity of the obstacle, and the target speed of the host vehicle. It can be set to pass through a point that is a short distance from the current position of.
- the driving support device According to the driving support device, the driving support method, and the driving support program of the present invention, it is possible to determine the state of the host vehicle that is more realistic.
- the driving support apparatus 10 includes a laser radar 12, a motion sensor 14, a camera 18, a GPS 20, and a computer 22.
- the laser radar 12 irradiates the front of the host vehicle while scanning the laser in the horizontal direction, and detects the position of the object irradiated with the laser by reflection of the laser. Detection processing by the laser radar 12 is executed at a constant cycle. The detection result of the laser radar 12 is output to the computer 22.
- the motion sensor 14 is a device that measures the speed of the host vehicle, the acceleration in the traveling direction, the acceleration in the lateral direction, the yaw angle, and the yaw rate.
- the motion sensor 14 includes a vehicle speed sensor that measures the speed of the host vehicle, a white line sensor that measures the yaw angle of the host vehicle, a gyro sensor that measures the yaw rate, and an acceleration sensor that measures the acceleration of the host vehicle. Yes.
- the camera 18 is a device that photographs the front of the vehicle.
- the camera 18 is composed of a small CCD camera or a CMOS camera.
- the road conditions ahead taken by the camera 18 are output to the computer 22.
- the GPS (Global Positioning System) 20 is a device for receiving signals from a plurality of GPS satellites with a GPS receiver and measuring the position of the host vehicle from the difference of each signal.
- the computer 22 includes a CPU, a ROM, a RAM, and a bus that store a driving support program for executing a driving support method to be described later.
- the computer 22 will be described with blocks divided for each function.
- the computer 22 includes a map DB 38, an environmental motion detection unit 40, a movement norm storage unit 46, a trajectory feature point generation line setting unit 47, a trajectory feature point generation unit 48, and a trajectory generation.
- the map DB 38 stores information on road width, road shape, sign marking, buildings, and the like.
- the environmental motion detector 40 is based on the position of the host vehicle, the motion state of the host vehicle, obstacles around the host vehicle, and the surroundings of the host vehicle. Detect the environment. In particular, the environmental motion detection unit 40 calculates a travelable range of the host vehicle based on information in the map DB 38 as described later.
- the obstacle when the host vehicle passes near the obstacle are stored in the form of a map that is associated with each other between the lateral distance W and the passing speed V of the host vehicle.
- the trajectory feature point generation line setting unit 47 is in the vicinity of an obstacle for generating a target trajectory feature point P (passing speed V, side interval W) that satisfies the conditions of the map of the movement norm storage unit 46.
- a trajectory feature point generation line that is a set reference line is set.
- the trajectory feature point generator 48 generates a target trajectory feature point P (passing speed V, lateral interval W) that satisfies the conditions of the map of the movement norm storage unit 46, as will be described later.
- the trajectory generation unit 50 generates a trajectory from the current position of the host vehicle to the target trajectory feature point P.
- the track difference detection unit 52 detects a difference between the track generated by the track generation unit 50 and the actual track of the host vehicle detected by the environmental motion detection unit 40.
- the exercise support unit 54 supports the driving of the driver of the host vehicle based on the track generated by the track generation unit 50 and the difference detected by the track difference detection unit 52. Specifically, the driving support unit 54 guides the driving of the driver by video and audio. Further, the driving support unit 54 guides the driving of the driver by applying a reaction force to the steering wheel, the accelerator pedal, and the brake pedal by the actuator. Further, the driving support unit 54 controls the speed, acceleration, deceleration, and steering angle of the host vehicle regardless of the driving operation of the driver.
- the trajectory feature point generation line setting unit 47 sets the trajectory feature generation line L A (S11). As shown in FIG. 3, in this embodiment, the trajectory feature point generation line setting unit 47 sets the trajectory feature point generation line L A in a direction perpendicular from the front end of the other vehicle VO lane road.
- Trajectory feature point generation unit 48 is in orbit feature point generation line L A, calculates the maximum transverse movable point P B in the avoiding direction of the other vehicle VO (direction away from the other vehicle VO) (S12).
- the maximum horizontal movable point P B is calculated on the surface of the barrier B on the trajectory feature point generation line L A.
- the maximum laterally movable point P B uses information on the position of the barrier B and the oncoming vehicle calculated using the laser radar 12 and the camera 18, and also relates to traffic regulations such as a white line on the road, a yellow line, or entry prohibition. It can be calculated using information.
- Trajectory feature point generation unit 48 on the trajectory feature generating line L A, the host vehicle VM is calculated the maximum lateral distance Wmax possible lateral movement (S13).
- the side interval Wmax is, for example, a distance obtained by subtracting a predetermined margin from the other vehicle VO and the maximum laterally movable point P B.
- the trajectory feature point generation unit 48 calculates a target trajectory feature point P (Vtarget, Wtarget) using a map as shown in FIG. 2 (S14).
- Wtarget Wmax is set, and the host vehicle VM passes through a point separated from the other vehicle VO by the maximum side interval Wmax.
- Wtarget may be Wmax or less.
- Vtarget does not necessarily have to be set on the curve of the map, but may be set to a speed equal to or lower than Vtarget corresponding to Wtarget on the curve of the map.
- the trajectory generation unit 50 generates a trajectory that reaches, for example, the shortest distance from the current state (Vo, Wo) of the host vehicle VM to the target trajectory feature point P (Vtarget, Wtarget).
- the future position of the host vehicle VM is estimated using the current state amount of the host vehicle VM and the driver's operation.
- a point where the host vehicle VM is estimated to pass in the future is set as the target trajectory feature point P.
- the current state of the host vehicle VM when the distance Xo to trajectory feature generating line L A, the speed of the host vehicle VM Vo, the lateral distance between the other vehicle VO and the host vehicle VM Assume Wo, yaw angle ⁇ o, and yaw rate ⁇ o.
- the trajectory feature point generator 48 calculates the lateral movement amount y1 for the yaw angle and the lateral movement amount y2 for the yaw rate from the lateral acceleration ao, the yaw angle ⁇ o, and the yaw rate ⁇ o that are the current state quantities of the host vehicle VM ( S21).
- lateral acceleration ao ⁇ Vo ⁇ ⁇ o time required to reach the trajectory feature point To ⁇ Xo ⁇ Vo
- lateral movement amount y1 yaw angle Xo ⁇ tan ⁇ o.
- the trajectory feature point generation unit 48 calculates the target lateral spacing Wtarget on current own vehicle VM state trajectory feature point is predicted from the amount generation line L A of the above (S23).
- Wtarget Wo + y1 + y2.
- the trajectory feature point generation unit 48 When
- , that is, when the target side interval Wtarget calculated from the current state quantity of the host vehicle VM is larger than Wmax (S24), the trajectory feature point generation unit 48 As shown in FIG. 2, the target side interval Wtarget Wmax is set (S25). When
- the trajectory feature point generation unit 48 sets, as the trajectory feature point P, a point at which the change in the state quantity of the host vehicle VM from the current state (Vo, Wo) to the trajectory feature point P is minimized.
- Set (S26) a point at which the change in the state quantity of the host vehicle VM from the current state (Vo, Wo) to the trajectory feature point P is minimized.
- the target longitudinal acceleration gx gxmin. Is the arrival time the To ⁇ to track the feature point generation line L A (Vtarget 2 -Vo 2) / (2 ⁇ gxmin ⁇ Xo).
- the trajectory feature point generation unit 48 generally determines a point that minimizes the evaluation function J of the following expression (1) from the set P (V, W) of the trajectory feature points P satisfying W ⁇ Wmax in the map of FIG. Is calculated by the optimal regulator problem and set to the target trajectory feature point P (Vtarget, Wtarget) (S26).
- the method for obtaining the target trajectory feature point P is that the host vehicle VM is used for the driving operation of the driver. This is also effective when the vehicle is driven by automatic driving.
- the trajectory feature point generation unit 48 of the driving assistance device 10 passes through the vicinity of the obstacle, and the maximum lateral interval Wmax that the host vehicle VM can take with respect to the obstacle when passing through the vicinity of the obstacle.
- the target speed Vtarget of the host vehicle when passing the vicinity of the obstacle is determined based on a map in which the side interval W and the speed V are associated with each other. For this reason, for example, the trajectory feature point generation unit 48 can automatically adjust the velocity V to be equal to or lower than the velocity associated with the predetermined interval W within the range of the maximum interval Wmax that can be taken for the obstacle. It becomes possible to determine the target speed Vtarget of the host vehicle when the vehicle passes near the obstacle. Therefore, the state of the host vehicle VM that is more realistic can be determined.
- the trajectory feature point generation unit 48 passes near the obstacle within the range of the maximum lateral interval Wmax that the host vehicle VM can take with respect to the obstacle when passing near the obstacle.
- the target side interval Wtarget for the determination is determined.
- the trajectory feature point generator 48 determines the target side interval Wtarget within the range of the maximum side interval Wmax that can be taken for the obstacle, and associates it with the determined target side interval Wtarget on the map. It is possible to determine the target speed Vtarget so that the speed is equal to or less than the determined speed. Therefore, the state of the host vehicle VM that is more realistic can be determined.
- the trajectory feature point generation unit 48 sets the distance between the host vehicle VM and the obstacle when passing the vicinity of the obstacle predicted when the current traveling state of the host vehicle VM is maintained as a target side.
- a speed corresponding to the determined target interval Wtarget is determined as a target speed Vtarget in a map that is determined as a direction interval Wtarget and is associated with the side interval W and the speed V of the host vehicle VM when passing through the vicinity of the obstacle. Determine as.
- the trajectory feature point generation unit 48 maintains the current traveling state of the host vehicle VM and minimizes the intervention for the driver's lateral driving operation of the host vehicle VM, and the target side interval Wtarget.
- a target speed Vtarget corresponding to the target side interval Wtarget can be determined. Therefore, it is possible to prevent the driver from feeling uncomfortable.
- the trajectory feature point generation unit 48 associates the host vehicle VM and the side distance W between the obstacle and the speed V of the host vehicle VM when passing near the obstacle.
- the side distance W and the speed V that satisfy the map and are evaluated to be able to be achieved by changing the current driving state of the host vehicle VM to the minimum driving state are set as the target side interval Wtarget and the target speed Vtarget. decide. For this reason, it is possible to determine the target side interval Wtarget and the target speed Vtarget that can be achieved by changing the minimum traveling state. For this reason, when driving assistance is implemented, the disturbance of the host vehicle VM can be reduced.
- the trajectory feature point generation unit 48 acquires a lateral acceleration ao, a yaw angle ⁇ o, a yaw rate ⁇ o, and a vertical acceleration ⁇ o that are current state quantities of the host vehicle VM (S31).
- the trajectory feature point generation unit 48 sets the point that minimizes the evaluation function J as the target trajectory. It is set as a feature point (S41).
- the trajectory feature point generator 48 sets a point Pa that can be reached only by steering without using a brake as a target trajectory feature point P (S34).
- the trajectory feature point generator 48 sets the point Pb that can be reached only by the brake as the target trajectory feature point P. (S36).
- the trajectory feature point generator 48 sets the point Pc that can be reached only by steering as the target trajectory feature point P. (S38).
- the trajectory feature point generation unit 48 determines the host vehicle and the side distance W between the obstacle and the speed of the host vehicle when passing near the obstacle.
- the side distance W and the speed V that satisfy the map associated with each other and can be achieved only by steering are determined as the target side distance Wtarget and the target speed Vtarget, and the host vehicle VM
- the side distance W and the speed V that satisfy the map of the side distance W and the speed V and can be achieved only by braking are set.
- the target side interval Wtarget and the target speed Vtarget are determined, and when the host vehicle VM is steered to increase the distance from the obstacle, the map of the side interval W and the speed V is satisfied and the steering is performed. Can only be achieved
- the lateral spacing W and the velocity V is, determined as the target lateral spacing Wtarget and the target speed Vtarget. For this reason, it is possible to determine the target side interval Wtarget and the target speed Vtarget that reduce the intervention for the driving operation of the driver by a simple process. Therefore, it is possible to prevent the driver from feeling uncomfortable with a simple process.
- the method of setting the trajectory feature point generation line is changed in the first and second embodiments.
- the trajectory feature point generation line setting unit 47 in the direction of the host vehicle VM from the front track feature points in a direction orthogonal to the lanes of the road from the product line L A of the other vehicle VO setting the ⁇ only inclined trajectory feature point generation line L B. That is, the trajectory feature generating line L B, the reference line is set so as to pass through a point farther from the obstacle from the current position of the host vehicle VM close distance.
- the trajectory feature point generation line L A to terminate the driving support is because it is constant irrespective of the lateral spacing W between the blind spot and pedestrians due obstacle, a certain degree of visibility with respect to the blind If it is secured, it will not match the driver's sense of giving up, such as stopping viewing, stopping deceleration and starting acceleration, and the driver will feel uncomfortable with driving support, or interference between driving support and driver operation there's a possibility that.
- the trajectory feature point generation line setting unit 47, the obstacle course point feature is set near generating line L B is a point farther from the obstacle from the current position of the host vehicle VM closer distance Set to pass through.
- the target interval and the target speed are determined earlier at a short distance from the current position of the host vehicle, and the driving support ends. This makes it possible to determine the state of the vehicle that better matches the reality and the driver's feeling. Therefore, it is possible to prevent interference between driving support and driver's operation.
- the driving support device According to the driving support device, the driving support method, and the driving support program of the present invention, it is possible to determine the state of the host vehicle that is more realistic.
- Driving Support Device 12 Laser Radar 14 Motion Sensor 18 Camera 20 GPS 22 Computer 38 Map DB 40 environmental motion detection unit 46 movement norm storage unit 47 trajectory feature point generation line setting unit 48 trajectory feature point generation unit 50 trajectory generation unit 52 trajectory difference detection unit 54 driving support unit
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Abstract
Description
12 レーザレーダ
14 運動センサ
18 カメラ
20 GPS
22 コンピュータ
38 地図DB
40 環境運動検出部
46 移動規範記憶部
47 軌道特徴点生成ライン設定部
48 軌道特徴点生成部
50 軌道生成部
52 軌道差分検出部
54 運転支援部
Claims (19)
- 障害物近傍を通過する際に自車両が前記障害物に対して取り得る最大の間隔と、前記障害物近傍を通過する際の前記自車両及び前記障害物の間隔と前記自車両の速度との互いに対応付けられた関係とに基づいて、前記障害物近傍を通過する際の前記自車両の目標速度を決定する目標決定ユニットを備えた運転支援装置。
- 前記目標決定ユニットは、前記障害物近傍を通過する際に前記自車両が前記障害物に対して取り得る最大の間隔の範囲内で、前記障害物近傍を通過する際の前記自車両及び前記障害物の目標間隔を決定する、請求項1に記載の運転支援装置。
- 前記目標決定ユニットは、
前記自車両の現在の走行状態に基づいて予測される前記障害物近傍を通過する際の前記自車両及び前記障害物の間隔を前記目標間隔として決定し、
前記障害物近傍を通過する際の前記自車両及び前記障害物の間隔と前記自車両の速度との互いに対応付けられた関係において、決定された前記目標間隔に対応する速度以下の速度を前記目標速度として決定する、請求項1又は2に記載の運転支援装置。 - 前記目標決定ユニットは、
前記障害物近傍を通過する際の前記自車両及び前記障害物の間隔と前記自車両の速度との互いに対応付けられた関係を満たし、且つ前記自車両の現在の走行状態から最小の走行状態の変更で達成することが可能と評価される前記自車両及び前記障害物の間隔と前記自車両の速度とを、前記目標間隔と前記目標速度として決定する、請求項1又は2に記載の運転支援装置。 - 前記目標決定ユニットは、
前記自車両が加速している場合には、前記障害物近傍を通過する際の前記自車両及び前記障害物の間隔と前記自車両の速度との互いに対応付けられた関係を満たし、且つ操舵のみで達成することが可能である前記自車両及び前記障害物の間隔と前記自車両の速度とを、前記目標間隔と前記目標速度として決定し、
前記自車両が前記障害物との間隔を狭める側に操舵している場合には、前記障害物近傍を通過する際の前記自車両及び前記障害物の間隔と前記自車両の速度との互いに対応付けられた関係を満たし、且つ制動のみで達成することが可能である前記自車両及び前記障害物の間隔と前記自車両の速度とを、前記目標間隔と前記目標速度として決定し、
前記自車両が前記障害物との間隔を広げる側に操舵している場合には、前記障害物近傍を通過する際の前記自車両及び前記障害物の間隔と前記自車両の速度との互いに対応付けられた関係を満たし、且つ操舵のみで達成することが可能である前記自車両及び前記障害物の間隔と前記自車両の速度とを、前記目標間隔と前記目標速度として決定する、請求項1又は2に記載の運転支援装置。 - 前記目標決定ユニットは、
前記障害物近傍に設定された基準線を通過する際の前記自車両及び前記障害物の前記目標間隔と前記自車両の前記目標速度を決定し、
前記基準線は、前記障害物から離れるほど前記自車両の現在の位置から近い距離の点を通るように設定される、請求項1~5のいずれか1項に記載の運転支援装置。 - 障害物近傍を通過する際の、自車両と前記障害物との間隔と、前記自車両の速度との関係が記憶された記憶部と、
前記障害物近傍を通過する際に前記自車両が前記障害物に対して取り得る最大の間隔を算出する最大間隔算出部と、
前記記憶部に記憶された前記関係と、前記最大間隔算出部により算出された最大の間隔とに基づいて、前記障害物近傍を通過する際の前記自車両の目標速度を決定する目標決定ユニットと、
を備えた運転支援装置。 - 障害物近傍を通過する際に前記自車両が前記障害物に対して取り得る最大の間隔と、前記障害物近傍を通過する際の前記自車両及び前記障害物の間隔と前記自車両の速度との互いに対応付けられた関係とに基づいて、前記障害物近傍を通過する際の前記自車両の目標速度を決定する目標決定工程を含む運転支援方法。
- 前記目標決定工程は、前記障害物近傍を通過する際に前記自車両が前記障害物に対して取り得る最大の間隔の範囲内で、前記障害物近傍を通過する際の前記自車両及び前記障害物の目標間隔を決定する、請求項8に記載の運転支援方法。
- 前記目標決定工程は、
前記自車両の現在の走行状態に基づいて予測される前記障害物近傍を通過する際の前記自車両及び前記障害物の間隔を前記目標間隔として決定し、
前記障害物近傍を通過する際の前記自車両及び前記障害物の間隔と前記自車両の速度との互いに対応付けられた関係において、決定された前記目標間隔に対応する速度以下の速度を前記目標速度として決定する、請求項8又は9に記載の運転支援方法。 - 前記目標決定工程は、
前記障害物近傍を通過する際の前記自車両及び前記障害物の間隔と前記自車両の速度との互いに対応付けられた関係を満たし、且つ前記自車両の現在の走行状態から最小の走行状態の変更で達成することが可能と評価される前記自車両及び前記障害物の間隔と前記自車両の速度とを、前記目標間隔と前記目標速度として決定する、請求項8又は9に記載の運転支援方法。 - 前記目標決定工程は、
前記自車両が加速している場合には、前記障害物近傍を通過する際の前記自車両及び前記障害物の間隔と前記自車両の速度との互いに対応付けられた関係を満たし、且つ操舵のみで達成することが可能である前記自車両及び前記障害物の間隔と前記自車両の速度とを、前記目標間隔と前記目標速度として決定し、
前記自車両が前記障害物との間隔を狭める側に操舵している場合には、前記障害物近傍を通過する際の前記自車両及び前記障害物の間隔と前記自車両の速度との互いに対応付けられた関係を満たし、且つ制動のみで達成することが可能である前記自車両及び前記障害物の間隔と前記自車両の速度とを、前記目標間隔と前記目標速度として決定し、
前記自車両が前記障害物との間隔を広げる側に操舵している場合には、前記障害物近傍を通過する際の前記自車両及び前記障害物の間隔と前記自車両の速度との互いに対応付けられた関係を満たし、且つ操舵のみで達成することが可能である前記自車両及び前記障害物の間隔と前記自車両の速度とを、前記目標間隔と前記目標速度として決定する、請求項8又は9に記載の運転支援方法。 - 前記目標決定工程は、
前記障害物近傍に設定された基準線を通過する際の前記自車両及び前記障害物の前記目標間隔と前記自車両の前記目標速度を決定し、
前記基準線は、前記障害物から離れるほど前記自車両の現在の位置から近い距離の点を通るように設定される、請求項8~12のいずれか1項に記載の運転支援方法。 - 障害物近傍を通過する際に前記自車両が前記障害物に対して取り得る最大の間隔と、前記障害物近傍を通過する際の前記自車両及び前記障害物の間隔と前記自車両の速度との互いに対応付けられた関係とに基づいて、前記障害物近傍を通過する際の前記自車両の目標速度を決定する目標決定工程を電子計算機に実行させる運転支援プログラム。
- 前記目標決定工程は、前記障害物近傍を通過する際に前記自車両が前記障害物に対して取り得る最大の間隔の範囲内で、前記障害物近傍を通過する際の前記自車両及び前記障害物の目標間隔を決定する、請求項14に記載の運転支援プログラム。
- 前記目標決定工程は、
前記自車両の現在の走行状態に基づいて予測される前記障害物近傍を通過する際の前記自車両及び前記障害物の間隔を前記目標間隔として決定し、
前記障害物近傍を通過する際の前記自車両及び前記障害物の間隔と前記自車両の速度との互いに対応付けられた関係において、決定された前記目標間隔に対応する速度以下の速度を前記目標速度として決定する、請求項14又は15に記載の運転支援プログラム。 - 前記目標決定工程は、
前記障害物近傍を通過する際の前記自車両及び前記障害物の間隔と前記自車両の速度との互いに対応付けられた関係を満たし、且つ前記自車両の現在の走行状態から最小の走行状態の変更で達成することが可能と評価される前記自車両及び前記障害物の間隔と前記自車両の速度とを、前記目標間隔と前記目標速度として決定する、請求項14又は15に記載の運転支援プログラム。 - 前記目標決定工程は、
前記自車両が加速している場合には、前記障害物近傍を通過する際の前記自車両及び前記障害物の間隔と前記自車両の速度との互いに対応付けられた関係を満たし、且つ操舵のみで達成することが可能である前記自車両及び前記障害物の間隔と前記自車両の速度とを、前記目標間隔と前記目標速度として決定し、
前記自車両が前記障害物との間隔を狭める側に操舵している場合には、前記障害物近傍を通過する際の前記自車両及び前記障害物の間隔と前記自車両の速度との互いに対応付けられた関係を満たし、且つ制動のみで達成することが可能である前記自車両及び前記障害物の間隔と前記自車両の速度とを、前記目標間隔と前記目標速度として決定し、
前記自車両が前記障害物との間隔を広げる側に操舵している場合には、前記障害物近傍を通過する際の前記自車両及び前記障害物の間隔と前記自車両の速度との互いに対応付けられた関係を満たし、且つ操舵のみで達成することが可能である前記自車両及び前記障害物の間隔と前記自車両の速度とを、前記目標間隔と前記目標速度として決定する、請求項14又は15に記載の運転支援プログラム。 - 前記目標決定工程は、
前記障害物近傍に設定された基準線を通過する際の前記自車両及び前記障害物の前記目標間隔と前記自車両の前記目標速度を決定し、
前記基準線は、前記障害物から離れるほど前記自車両の現在の位置から近い距離の点を通るように設定される、請求項14~18のいずれか1項に記載の運転支援プログラム。
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US20130226445A1 (en) | 2013-08-29 |
US9405727B2 (en) | 2016-08-02 |
DE112011104947B4 (de) | 2021-02-11 |
CN103370250A (zh) | 2013-10-23 |
DE112011104947T5 (de) | 2013-11-21 |
JP5397565B2 (ja) | 2014-01-22 |
JPWO2012114478A1 (ja) | 2014-07-07 |
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