WO2010122639A1 - 走行支援装置 - Google Patents
走行支援装置 Download PDFInfo
- Publication number
- WO2010122639A1 WO2010122639A1 PCT/JP2009/057921 JP2009057921W WO2010122639A1 WO 2010122639 A1 WO2010122639 A1 WO 2010122639A1 JP 2009057921 W JP2009057921 W JP 2009057921W WO 2010122639 A1 WO2010122639 A1 WO 2010122639A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- vehicle
- target course
- parallel running
- parallel
- driving support
- Prior art date
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- 238000012937 correction Methods 0.000 claims abstract description 18
- 208000019901 Anxiety disease Diseases 0.000 abstract description 16
- 230000036506 anxiety Effects 0.000 abstract description 16
- 238000000034 method Methods 0.000 description 39
- 230000001133 acceleration Effects 0.000 description 4
- 230000001953 sensory effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D15/00—Steering not otherwise provided for
- B62D15/02—Steering position indicators ; Steering position determination; Steering aids
- B62D15/025—Active steering aids, e.g. helping the driver by actively influencing the steering system after environment evaluation
-
- 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
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/0097—Predicting future conditions
-
- 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
- B60W2540/00—Input parameters relating to occupants
- B60W2540/18—Steering angle
-
- 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
- B60W2552/30—Road curve radius
-
- 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
- B60W30/08—Active safety systems predicting or avoiding probable or impending collision or attempting to minimise its consequences
- B60W30/095—Predicting travel path or likelihood of collision
- B60W30/0956—Predicting travel path or likelihood of collision the prediction being responsive to traffic or environmental parameters
Definitions
- the present invention relates to a travel support device that controls a vehicle so that the vehicle travels along a set target course.
- a travel support device that controls a vehicle to travel along a set target course
- a steering torque as a steering operation input value by a driver is detected as described in, for example, Japanese Patent Application Laid-Open No. 2007-326447.
- the ECU corrects the target course in a direction away from the parallel vehicle, thereby making the driver feel uncomfortable. It becomes possible to suppress giving.
- the present invention has been made to solve such technical problems, and an object of the present invention is to provide a driving support device that can reduce the driver's anxiety.
- a travel support apparatus is a travel support apparatus that controls a vehicle so that the vehicle travels along a set target course, and predicting means that predicts a trajectory of a parallel vehicle traveling in an adjacent lane; Correction means for correcting the target course of the host vehicle based on the trajectory of the parallel running vehicle predicted by the prediction means.
- the trajectory of the parallel vehicle traveling in the adjacent lane is predicted, and the target course of the host vehicle is corrected based on the predicted trajectory, so that the driver's anxiety about the parallel vehicle can be sufficiently reduced. Can do. As a result, it is possible to realize driving support that reduces the driver's anxiety.
- the correcting means corrects the target course of the host vehicle based on the lateral speed of the parallel running vehicle. In this case, the driver's anxiety with respect to the parallel running vehicle can be sufficiently reduced.
- the correcting means corrects the target course of the own vehicle based on the traveling load of the parallel running vehicle. In this case, the driver's anxiety with respect to the parallel running vehicle can be sufficiently reduced.
- the driving load is obtained based on the magnitude and direction of the road curvature ahead of the parallel running vehicle. In this case, the driver's anxiety with respect to the parallel running vehicle can be sufficiently reduced.
- the correcting means corrects the target course of the own vehicle based on the kinetic energy of the parallel running vehicle. In this case, the driver's anxiety with respect to the parallel running vehicle can be sufficiently reduced.
- the correcting means corrects the target course of the own vehicle based on the steering input of the driver of the own vehicle when there is no parallel running vehicle. In this case, since the target course is corrected based on the driver's feeling when there is no parallel running vehicle, driving support that reduces the driver's anxiety can be realized.
- FIG. 1 is a block diagram showing a configuration of a driving support apparatus according to this embodiment.
- FIG. 2 is a flowchart showing the operation of the driving support apparatus according to this embodiment.
- FIG. 3 is a graph showing the relationship between the lateral speed Vy and Doffset of the parallel running vehicle.
- FIG. 4 is a graph showing the relationship between the parallel vehicle projected area and Kd.
- FIG. 5 is a flowchart showing the driver's sensory target line learning process.
- FIG. 1 is a block diagram showing the configuration of the driving support apparatus according to this embodiment.
- the driving support device 1 is a lane keeping device that is mounted on a vehicle and supports driving of the vehicle so that the vehicle travels along a set target course.
- the driving support device 1 includes a vehicle control ECU (Electronic Control Unit) 2, a camera 3, an image ECU (Electronic Control Unit) 4, a radar 5, a vehicle speed sensor 6, a steering torque sensor 7, and a lateral acceleration (lateral G) sensor 8. It has.
- the vehicle control ECU 2 is an electronic control unit for controlling the entire apparatus, and includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), an input / output interface, and the like. Yes.
- a CPU Central Processing Unit
- ROM Read Only Memory
- RAM Random Access Memory
- the camera 3 is a CMOS (Complimentary Metal Oxide Semiconductor) camera, for example, and is attached in front of the vehicle on which the driving support device 1 is mounted. At this time, it is preferable that the camera 3 is attached so that the optical axis direction thereof coincides with the traveling direction of the vehicle.
- the camera 3 captures a road ahead of the vehicle and acquires a captured color image (for example, an image by RGB (RedRGBGreen Blue)).
- the camera 3 transmits data of the captured image to the image ECU 4 as an imaging signal.
- the camera 3 has a wide imaging range in the left-right direction, and can sufficiently capture the white lines on both the left and right sides (a pair) indicating the traveling lane.
- the camera 3 is color, it is sufficient that an image capable of recognizing a white line on the road can be acquired, so a monochrome camera may be used.
- the image ECU 4 includes a CPU (Central Processing Unit), ROM (Read Only Memory), RAM (Random Access Memory), and the like.
- the image ECU 4 takes in an image signal from the camera 3 and recognizes a pair of white lines indicating the lane in which the vehicle is traveling from the image data of the image signal. Then, the image ECU 4 calculates a lane width and a line passing through the center of the pair of white lines (that is, the center line of the lane) from the pair of recognized white lines.
- the image ECU 4 calculates the radius of the center of the lane (curve radius R), the direction of the vehicle with respect to the white line (yaw angle ⁇ ), and the lateral deviation D of the vehicle. Then, the image ECU 4 transmits the information of the recognized pair of white lines and the calculated information to the vehicle control ECU 2 as image signals.
- the radar 5 transmits a detection wave such as a millimeter wave band radio wave or a laser beam to the surroundings of the own vehicle while scanning in the horizontal direction, and is reflected by the surface of another vehicle including a parallel running vehicle or an oncoming vehicle.
- a detection wave such as a millimeter wave band radio wave or a laser beam
- the direction of the other vehicle is detected using the angle of the reflected wave
- the distance is the time from when the radio wave is emitted until the reflected wave returns
- the speed of the other vehicle is detected using the frequency change (Doppler effect) of the reflected wave.
- the radar 5 transmits the detected result to the vehicle control ECU 2.
- the vehicle speed sensor 6 has a function of detecting the vehicle speed of the host vehicle and outputting the detected vehicle speed to the vehicle control ECU 2 as a vehicle speed signal.
- the vehicle speed sensor 5 is provided for each of four wheels, for example, and detects the vehicle speed of the vehicle by measuring the rotational speed of each wheel.
- the steering torque sensor 7 detects the torque ⁇ during the steering operation by the driver, and the lateral G sensor 8 detects the lateral acceleration of the host vehicle.
- the steering torque sensor 7 and the lateral G sensor 8 are each connected to the vehicle control ECU 2 and transmit the detected result to the vehicle control ECU 2.
- the travel support device 1 includes a steering torque application unit 9, an alarm buzzer 10, and a meter device 11.
- the steering torque application unit 9 performs steering control for preventing the host vehicle from deviating from the lane.
- the steering torque application unit 9 is, for example, an electric power steering device, and applies steering torque to the wheels under the control of the vehicle control ECU 2 so that the host vehicle travels along the target course.
- the alarm buzzer 10 sounds to notify the driver when the own vehicle deviates from the lane or when there is a high possibility of deviating.
- the meter device 11 has a multi-display display unit (not shown) in addition to various meters and warning lights. The meter device 11 receives a signal from the vehicle control ECU 2 and displays information corresponding to the signal on the multi-display display unit.
- the vehicle control ECU 2 includes a parallel vehicle trajectory prediction unit 21, a calculation unit 22, and a target course correction unit 23.
- the parallel vehicle trajectory prediction unit 21 predicts the parallel vehicle trajectory based on information about the road imaged by the camera 3 and the direction and speed of the parallel vehicle detected by the radar 5.
- the calculation unit 22 performs each calculation process related to vehicle control based on signals from the image ECU 4, the radar 5, and the sensors 6, 7, and 8. For example, the calculation unit 22 calculates a lateral speed (hereinafter referred to as a lateral speed) Vy of the parallel running vehicle based on the position, direction, speed, and the like of the parallel running vehicle detected by the radar 5. Further, the calculation unit 22 calculates the kinetic energy of the parallel running vehicle based on the speed of the parallel running vehicle and the type of the parallel running vehicle (for example, vehicle type and size). Further, the calculation unit 22 calculates the vehicle center position Doffset, the correction gain Kd, and the target lateral acceleration Gy * with respect to the lane center.
- a lateral speed hereinafter referred to as a lateral speed
- Vy the parallel running vehicle based on the position, direction, speed, and the like of the parallel running vehicle detected by the radar 5.
- the calculation unit 22 calculates the kinetic energy of the parallel running vehicle based on the speed of the parallel running vehicle and the type of
- the target course correction unit 23 corrects the target course of the host vehicle based on the parallel vehicle trajectory predicted by the parallel vehicle trajectory prediction unit 21. Further, the target course correcting unit 23 can correct the target course of the host vehicle based on the steering input of the driver of the host vehicle when there is no parallel running vehicle.
- FIG. 2 is a flowchart showing the operation of the driving support apparatus according to this embodiment. This control process is repeatedly executed at a predetermined timing after the ignition is turned on, for example. First, in the process of S11, camera information is acquired. At this time, the vehicle control ECU 2 acquires information such as the curve R, the yaw angle ⁇ , and the lateral deviation D from the image signal transmitted by the image ECU 4.
- the vehicle control ECU 2 determines whether or not there is a parallel vehicle in the adjacent lane based on the parallel vehicle information acquired in S12.
- the control process proceeds to S15, and the lateral speed Vy of the parallel running vehicle is calculated.
- the calculation unit 22 calculates the lateral speed Vy of the parallel running vehicle based on the position, direction, speed, and the like of the parallel running vehicle acquired in S12.
- the vehicle control ECU 2 determines whether the lateral speed Vy of the parallel running vehicle detected in the process of S15 is in a direction approaching the host vehicle or in a direction away from the host vehicle. If it is determined that the lateral speed Vy of the parallel running vehicle is in the approaching direction, the vehicle center position Doffset with respect to the lane center is calculated (S17).
- FIG. 3 is a graph showing the relationship between the lateral speed Vy and Doffset of a parallel running vehicle.
- the horizontal axis represents the lateral speed Vy of the parallel running vehicle
- the vertical axis represents Doffset.
- FIG. 4 is a graph showing the relationship between the parallel vehicle projected area and Kd.
- the horizontal axis represents the parallel vehicle projected area representing the kinetic energy of the parallel vehicle
- the vertical axis represents the correction gain Kd.
- the target lateral acceleration (target lateral Gy * ) is calculated.
- the target lateral Gy * is calculated by equations (1) to (4).
- Equations (2) to (4) K1, K2, and K3 are coefficients, and V is the vehicle speed.
- steering control is performed based on Gy * calculated in S19.
- the vehicle control ECU 2 transmits a control signal to the steering torque application unit 9 based on the calculated target lateral Gy * .
- the steering torque application unit 9 receives a control signal and performs steering control according to the signal. And if S20 is complete
- the control process proceeds to S21, and the driver's sense target line learning is performed.
- the vehicle control ECU 2 performs a control process as shown in FIG. 5 and executes the driver's sense target line learning.
- FIG. 5 is a flowchart showing the driver's sensory target line learning process.
- the control process of the sensory target line learning of the driver will be described with reference to FIG.
- the driver's sensory target line learning is performed.
- the vehicle control ECU 2 learns the driver's sense target line when there is no parallel running vehicle.
- the vehicle control ECU 2 compares the host vehicle steering torque ⁇ detected by the steering torque sensor 7 with the theoretical value ⁇ th.
- the vehicle control ECU 2 learns the target line that the driver feels and learns Dd for correcting the center position of the driving lane that is the reference for control. Then, by using the learned value for target position correction when there is a parallel running vehicle, it is possible to make corrections that match the driver's feeling and further reduce the driver's anxiety.
- the trajectory of the parallel vehicle traveling in the adjacent lane is predicted, and the target course of the host vehicle is corrected based on the predicted trajectory.
- the above-described embodiment shows an example of the driving support apparatus according to the present invention.
- the driving support device according to the present invention is not limited to the one described in the above embodiment.
- the driving support device according to the present invention may be a device in which the driving support device according to the embodiment is modified or applied to another so as not to change the gist described in each claim.
- the correction of the target course of the host vehicle based on the lateral speed Vy of the parallel running vehicle and the kinetic energy of the parallel running vehicle has been described.
- the target course may be modified based on the load.
- working load what is calculated
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Human Computer Interaction (AREA)
- Traffic Control Systems (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
Abstract
Description
2 車両制御ECU
3 カメラ
4 画像ECU
21 並走車軌跡予測部
23 目標コース修正部。
Claims (6)
- 設定された目標コースに沿って車両が走行するように車両を制御する走行支援装置であって、
隣接車線を走行する並走車の軌跡を予測する予測手段と、
前記予測手段により予測される前記並走車の軌跡に基づいて、自車両の目標コースを修正する修正手段と、
を備えることを特徴とする走行支援装置。 - 前記修正手段は、前記並走車の横方向速度に基づいて自車両の目標コースを修正することを特徴とする請求項1に記載の走行支援装置。
- 前記修正手段は、前記並走車の走行負荷に基づいて自車両の目標コースを修正することを特徴とする請求項1に記載の走行支援装置。
- 前記走行負荷は、前記並走車前方の道路曲率の大きさ及び方向に基づいて求められるものであることを特徴とする請求項3に記載の走行支援装置。
- 前記修正手段は、前記並走車の運動エネルギに基づいて自車両の目標コースを修正することを特徴とする請求項1に記載の走行支援装置。
- 前記修正手段は、前記並走車が存在しない場合に、自車両のドライバの操舵入力に基づいて、自車両の目標コースを修正することを特徴とする請求項1に記載の走行支援装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010544108A JP5310745B2 (ja) | 2009-04-21 | 2009-04-21 | 走行支援装置 |
US13/059,431 US8682500B2 (en) | 2009-04-21 | 2009-04-21 | Driving assistance apparatus |
PCT/JP2009/057921 WO2010122639A1 (ja) | 2009-04-21 | 2009-04-21 | 走行支援装置 |
CN200980133989.0A CN102348592B (zh) | 2009-04-21 | 2009-04-21 | 行驶辅助装置 |
DE112009004683.5T DE112009004683B4 (de) | 2009-04-21 | 2009-04-21 | Fahrassistenzvorrichtung |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2009/057921 WO2010122639A1 (ja) | 2009-04-21 | 2009-04-21 | 走行支援装置 |
Publications (1)
Publication Number | Publication Date |
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WO2010122639A1 true WO2010122639A1 (ja) | 2010-10-28 |
Family
ID=43010777
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2009/057921 WO2010122639A1 (ja) | 2009-04-21 | 2009-04-21 | 走行支援装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8682500B2 (ja) |
JP (1) | JP5310745B2 (ja) |
CN (1) | CN102348592B (ja) |
DE (1) | DE112009004683B4 (ja) |
WO (1) | WO2010122639A1 (ja) |
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US8521363B2 (en) | 2006-06-07 | 2013-08-27 | Toyota Jidosha Kabushiki Kaisha | Driving assist system |
WO2017163366A1 (ja) * | 2016-03-24 | 2017-09-28 | 日産自動車株式会社 | 走路推定方法及び走路推定装置 |
JP2018039285A (ja) * | 2016-09-05 | 2018-03-15 | 株式会社Subaru | 車両の走行制御装置 |
CN108715164A (zh) * | 2017-04-07 | 2018-10-30 | 奥迪股份公司 | 用于车辆的驾驶辅助设备和方法 |
JP2019059451A (ja) * | 2017-09-28 | 2019-04-18 | トヨタ自動車株式会社 | 運転支援装置 |
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Also Published As
Publication number | Publication date |
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DE112009004683T5 (de) | 2012-10-25 |
US20110137488A1 (en) | 2011-06-09 |
JP5310745B2 (ja) | 2013-10-09 |
CN102348592A (zh) | 2012-02-08 |
CN102348592B (zh) | 2014-08-06 |
US8682500B2 (en) | 2014-03-25 |
DE112009004683B4 (de) | 2016-05-19 |
JPWO2010122639A1 (ja) | 2012-10-22 |
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