WO2016110733A1 - 目標経路生成装置およぴ走行制御装置 - Google Patents
目標経路生成装置およぴ走行制御装置 Download PDFInfo
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- WO2016110733A1 WO2016110733A1 PCT/IB2015/001087 IB2015001087W WO2016110733A1 WO 2016110733 A1 WO2016110733 A1 WO 2016110733A1 IB 2015001087 W IB2015001087 W IB 2015001087W WO 2016110733 A1 WO2016110733 A1 WO 2016110733A1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/3407—Route searching; Route guidance specially adapted for specific applications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K31/00—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator
-
- 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
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/10—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to vehicle motion
- B60W40/105—Speed
-
- 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
- B60W60/00—Drive control systems specially adapted for autonomous road vehicles
- B60W60/001—Planning or execution of driving tasks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/02—Control of position or course in two dimensions
- G05D1/021—Control of position or course in two dimensions specially adapted to land vehicles
- G05D1/0231—Control of position or course in two dimensions specially adapted to land vehicles using optical position detecting means
- G05D1/0246—Control of position or course in two dimensions specially adapted to land vehicles using optical position detecting means using a video camera in combination with image processing means
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/02—Control of position or course in two dimensions
- G05D1/021—Control of position or course in two dimensions specially adapted to land vehicles
- G05D1/0257—Control of position or course in two dimensions specially adapted to land vehicles using a radar
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
- G08G1/096708—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control
- G08G1/096725—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control where the received information generates an automatic action on the vehicle control
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0968—Systems involving transmission of navigation instructions to the vehicle
-
- 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
- B60W2420/00—Indexing codes relating to the type of sensors based on the principle of their operation
- B60W2420/40—Photo, light or radio wave sensitive means, e.g. infrared sensors
- B60W2420/403—Image sensing, e.g. optical camera
-
- 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
- B60W2420/00—Indexing codes relating to the type of sensors based on the principle of their operation
- B60W2420/40—Photo, light or radio wave sensitive means, e.g. infrared sensors
- B60W2420/408—Radar; Laser, e.g. lidar
-
- 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
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
Definitions
- the present invention relates to a target route generation device. More specifically, the present invention relates to a target route generation device that generates a target route for controlling traveling of a vehicle.
- the vehicle's course (route) from the departure point to the destination is calculated using a well-known navigation technique, and on the course using a sensing technique such as a radar sensor or an image sensor. Detect lanes and obstacles.
- an autonomous running control device makes a vehicle run autonomously along a course based on the detection information.
- the course from the departure point to the destination is divided into predetermined sections, and the traveling locus of the vehicle and the behavior of the vehicle (for example, vehicle speed, acceleration, steering angle, etc.) are divided for each section. It is conceivable to update the target route representing the above and use it for vehicle control.
- a route update point is set before the end point of the section, and the route update point is updated to a new target route. Also, in this case, it takes time to calculate a new target route, and the target route after passing through the route update point is determined so that the vehicle is appropriately controlled even when the calculation of the new target route is not completed at the route update point. It is conceivable to determine in advance. For example, if the calculation of a new target route does not end at the route update point, it may be possible to determine in advance a target route that stops the vehicle at the end point of the section. However, such control that stops the vehicle uniformly is inconvenient for the user who gets on the vehicle, and the user may feel uncomfortable with the ride comfort.
- a target route generation device includes a generation unit that generates a target route for controlling a vehicle in a predetermined section at a predetermined timing, and the generation unit generates a target route at a predetermined timing.
- a setting unit that presets a target vehicle speed that is used when the vehicle cannot travel and that is the target vehicle speed at the end point of the section in which the vehicle is currently traveling, and the setting unit calculates the target vehicle speed based on road information in the predetermined section.
- the present invention it is possible to provide a target route generation device that reduces the uncomfortable feeling that the user feels when updating the target route.
- Embodiment A travel control device 10 according to an embodiment will be described with reference to FIGS. 1 to 5.
- FIG. 1 is a block configuration diagram of a travel control device 10 according to the embodiment.
- the travel control device 10 is a device mounted on a vehicle, and is a device that autonomously controls the travel of the vehicle along a route (route) from a starting point to a destination calculated using a navigation technique or the like. .
- the travel control device 10 divides the course from the departure point to the destination into predetermined sections, and the target representing the vehicle travel trajectory and vehicle behavior (for example, vehicle speed, acceleration, steering angle, etc.) for each section.
- the route is updated, and the travel control of the vehicle is performed based on the target route.
- the travel control device 10 includes a target route generation ECU (Electronic Control Unit) 12 and a travel control ECU 14. As shown in FIG. 1, the traveling control device 10 is electrically connected to a radar 16, a camera 18, a traveling state detection sensor 20, an operation state detection sensor 22, a navigation system 24, and the like. Further, a travel control actuator 26 is electrically connected to the travel control device 10.
- the travel control device 10 may be connected to other known configurations as appropriate, for example, a communication unit for performing inter-vehicle communication.
- the target route generation ECU 12 and the travel control ECU 14 are electronic control units each including a CPU (Central Processing Unit) and a memory such as a ROM (Read Only Memory) and a RAM (Random Access Memory).
- the target route generation ECU 12 acquires the route and map information from the departure point to the destination searched by the navigation system 24, and for each predetermined section set on the route, the vehicle travel locus, the vehicle behavior, etc.
- the target route representing is calculated.
- the travel control ECU 14 controls the travel of the vehicle based on the target route generated by the target route generation ECU 12.
- the travel control ECU 14 determines the own vehicle based on the target route generated by the target route generation ECU 12 and data from the radar 16, the camera 18, the travel state detection sensor 20, the operation state detection sensor 22, the navigation system 24, and the like.
- the travel control amount such as acceleration / deceleration and steering angle of the vehicle is calculated.
- the travel control ECU 14 controls the travel control actuator 26 based on the travel control amount.
- the target route generation ECU 12 and the travel control ECU 14 are described as independent ECUs, but may be configured as a single unit as appropriate.
- the Radar 16 detects the presence, position, speed, and relative speed of the vehicle, motorcycle, bicycle, pedestrian, etc. around the vehicle.
- the radar 16 includes, for example, a laser radar, a millimeter wave radar, an ultrasonic radar, and the like.
- the radar 16 outputs the detected data to the travel control device 10.
- a well-known radar may be used as appropriate, and therefore a detailed description of the configuration is omitted.
- the camera 18 is attached to the front or side of the host vehicle, for example, and takes an image around the host vehicle.
- the camera 18 images a road segment line or an obstacle on the route.
- the camera 18 includes, for example, an image sensor such as a CCD (Charge Coupled Device) or a CMOS (Complementary Metal-Oxide Semiconductor).
- the camera 18 outputs the captured image to the travel control device 10.
- a well-known camera may be used as appropriate, and thus a detailed description of the configuration is omitted.
- the traveling state sensor 20 detects the traveling state of the host vehicle (for example, vehicle speed, acceleration, yaw angle, etc.).
- the traveling state sensor 20 includes, for example, wheel speed sensors provided on the respective wheels of the host vehicle, and detects the traveling state of the host vehicle such as the vehicle speed by measuring the wheel speed.
- the traveling state sensor 20 outputs the detected traveling state of the host vehicle to the traveling control device 10. Since the well-known vehicle speed sensor, acceleration sensor, and yaw angle sensor may be used as the running state sensor 20, a description of a more detailed configuration is omitted.
- the operation state detection sensor 22 detects the operation state of the host vehicle. Specifically, the operation state detection sensor 22 detects an accelerator operation, a brake operation, a steering operation (steering), and the like by a user (hereinafter referred to as a driver) who gets on the vehicle. The operation state sensor 22 outputs the detected operation state of the host vehicle to the travel control device 10. Since the well-known accelerator operation sensor, brake operation sensor, and steering sensor may be used as the operation state sensor 22, a description of a more detailed configuration is omitted.
- the navigation system 24 receives a GPS signal from a GPS (Global Positioning System) satellite.
- the navigation system 24 includes a gyroscope that detects the magnitude of the rotational motion applied to the vehicle, an acceleration sensor that detects the travel distance of the vehicle from three-axis acceleration, and a geomagnetic sensor that detects the traveling direction of the vehicle from the geomagnetism. Etc. may be provided.
- the navigation system 24 stores map information (road information) on a recording medium such as a hard disk. This map information includes information on the location and shape of roads and intersections, traffic rules including traffic signs and signals, and the like. Further, the map information may define a travelable area of the vehicle in the lane on the road.
- the navigation system 24 detects the position of the host vehicle, the direction with respect to the road, and the like based on the GPS signal from the GPS satellite and the map information.
- the navigation system 24 searches for a route from the departure point to the destination according to the input of the departure point (or current location) and the destination, and uses the searched route and the position information of the host vehicle to reach the destination. The guidance of the route is performed.
- the navigation system 24 outputs the searched route to the travel control device 10 together with the map information. Since a known navigation system may be used as the navigation system 24, a description of a more detailed configuration is omitted.
- the traveling control actuator 26 includes an acceleration / deceleration actuator for accelerating / decelerating the host vehicle and a steering actuator for adjusting a steering angle.
- the travel control actuator 26 operates the acceleration / deceleration actuator and the steering actuator based on the travel control amount transmitted from the travel control ECU 14 to control the travel of the host vehicle.
- the target route generation ECU 12 includes a route update timing determination unit 28, an end point vehicle speed setting unit 30, and a target route calculation unit 32.
- the target route generation ECU 12 acquires the route and map information from the departure point to the destination searched by the navigation system 24, and displays the vehicle travel locus, vehicle behavior, and the like for each predetermined section set on the route.
- the target route to be expressed is calculated, and the target route is updated for each section.
- the target route generation ECU 12 acquires map information together with the route R from the departure point to the destination searched by the navigation system 24. Then, the target route generation ECU 12 divides the route R from the departure place to the destination into predetermined sections, and updates the target path for each section. In the present embodiment, for example, sections are set by dividing the course R every 200 m.
- the method of dividing the section is not limited to this distance, and may be a distance different from this distance. Moreover, it is not necessary to divide all the sections at the same distance, and the division method may be changed as necessary.
- FIG. 3 some continuous sections divided in this way are shown as a section L0, a section L1, a section L2, a section L3,.
- a route update point for updating the target route is set.
- the route update points in the sections L0, L1, and L2 are shown as route update points C0, C1, and C2, respectively.
- the target route generation ECU 12 calculates the target route from the route update point to the end point of the next section and updates the target route. Do.
- the target route generation ECU 12 starts from the route update point C1 to the end point E1 of the section L1 and the end point E1 of the section L1 (start point of the section L2).
- the target route to the end point E2 of L2 is calculated, and the currently used target route is updated to the newly calculated target route.
- the same target route is updated in the section L2.
- the target route generation ECU 12 starts from the route update point C2 to the end point E2 of the section L2 and the end point E2 of the section L2 (start point of the section L3) to the section L3.
- the target route calculated at the route update point C1 in the section L1 is updated to the newly calculated target route.
- the route update point is set to a position that is a predetermined distance before the end point of the section (that is, a position where the remaining distance of the section is the predetermined distance).
- the predetermined distance is set to 50 m.
- the position of the route update point is not limited to this position, and may be a position different from this position.
- the route update point may be set at a position where the remaining time until the vehicle reaches the end point of the section is equal to or less than a predetermined time.
- the target route generation ECU 12 of the present embodiment allows the vehicle to travel at an appropriate vehicle speed even when the calculation of a new target route does not end at the route update point due to the time required for calculating the target route at the route update point. It is a device that sets the vehicle speed at the end point of the section so that traveling is controlled.
- the operations of the route update timing determination unit 28, the end vehicle speed setting unit 30 and the target route calculation unit 32 of the target route generation ECU 12 of this embodiment, and the operation of the travel control ECU 14 will be described.
- generation of a target route at the route update point C1 in the section L1 will be described, but similar target routes are generated in other sections.
- the route update timing determination unit 28 determines whether or not the route update point C1 of the currently traveling section L1 has been passed based on the position information of the own vehicle obtained from the navigation system 24 or the like (step S10). When the route update timing determination unit 28 determines that the route update point C1 has been passed (YES in step S10), the end point vehicle speed setting unit 30 sets the target vehicle speed at the end point E2 of the next section L2 (step S12).
- the target vehicle speed at the end point E2 of the section L2 is set based on the map information of the section L3 that is a section after the end point E2.
- the end vehicle speed setting unit 30 acquires data such as the required deceleration amount at the stop point, the deceleration point, and the deceleration point included in the section L3 based on the map information obtained from the navigation system 24 and the like.
- the target vehicle speed at the end point E2 of the section L2 is set according to the data.
- the end point vehicle speed setting unit 30 sets the target vehicle speed at the end point E2 of the section L2 to 0 ( Stop).
- the target vehicle speed may not be given as a value of the vehicle speed (that is, 0), but may be given as a deceleration (in this case, 100% deceleration).
- the end vehicle speed setting unit 30 determines the necessary deceleration amount at these deceleration points. For example, if the section L3 includes a deceleration point where the speed limit decreases from 60 km / h to 40 km / h, the target vehicle speed at the end point of the section L2 is set to 40 km / h.
- a predetermined vehicle speed set in advance according to the curvature of the intersection or the curve is set as the target vehicle speed.
- the predetermined vehicle speed is stored in advance in the memory of the target route generation ECU 12 or the like so that the predetermined vehicle speed decreases as the curvature increases.
- the target vehicle speed may not be given as a value of the vehicle speed, but may be given as a deceleration (for example, 40% deceleration).
- the target vehicle speed at the end point E2 of the section L2 may be set to 0 (stop). Moreover, when the section L3 includes a plurality of deceleration points, the smallest target vehicle speed among the target vehicle speeds of these deceleration points may be set as the target vehicle speed.
- the end point car setting unit 30 determines that the deceleration / stop at the end point E2 of the section L2 is not necessary.
- the target vehicle speed is given as a deceleration (in this case, 0% deceleration).
- the end vehicle speed setting unit 30 determines whether the section L3 includes a stop point or a deceleration point based on map information obtained from the navigation system 24 or the like. It may be determined whether the section L3 includes a stop point or a deceleration point by a method. For example, it may be determined whether the section L3 includes a stop point or a deceleration point based on data that can be acquired from the radar 16 or the camera 18. Moreover, in this embodiment, although it determines whether the area L3 contains a stop point and a deceleration point, the area as a determination object is not restricted to this. For example, it may not be the entire section L3. For example, a section of a predetermined distance after the end point E2 of the section L2 that is a part of the section L3 may be set as the determination target.
- the target vehicle speed (or deceleration) at the end point E2 of the section L2 set as described above is set as the target vehicle speed Vn at the end point of the next section, separately from the target vehicle speed Vp at the end point of the current section. Saved in memory etc.
- the target vehicle speed at the end point of the next section (for example, the target vehicle speed at the end point E2 of the section L2) is set in step S12
- the target vehicle speed stored as the target vehicle speed Vn at the end point of the next section (for example, The target vehicle speed of the end point E1 of the section L1 set at the route update point C0 of the section L0) is saved again as the target vehicle speed Vp of the end point of the current section, and the target vehicle speed of the end point of the next section set newly is It is stored as the target vehicle speed Vn at the end point of the next section.
- the target route calculation unit 32 starts calculating a new target route (step S14). Specifically, the target route calculation unit 32 calculates a target route from the route update point C1 to the end point E1 of the section L1 and the end point E1 of the section L1 (start point of the section L2) to the end point E2 of the section L2. For example, the target route calculation unit 32 generates a time function (vehicle speed profile) of the target vehicle speed starting from the actual vehicle speed of the vehicle at the route update point C1. This vehicle speed profile is stored in a memory or the like as a new target route along with a time function (steering profile) of the target travel locus and target steering amount generated separately, and the currently used target route is updated.
- a time function vehicle speed profile
- the target route calculation unit 32 generates the vehicle speed profile in consideration of the map information of the next section L2 acquired from the navigation system 24, similarly to the calculation of the known target route. Similarly, the target route calculation unit 32 generates a target travel locus and a steering profile based on the map information of the next section L2 acquired from the navigation system 24, similarly to the known target route calculation. For example, in such calculation of the target route, according to the curvature of the route obtained from the map information, the target travel locus, the vehicle speed profile, the steering profile, and the like such that the lateral acceleration applied to the vehicle is 0.2 G or less. A route is generated.
- the target route calculation unit 32 determines whether or not the target route has been updated (step S16). Specifically, it is determined whether the calculation is completed within a predetermined time from the start of the calculation of the new target route in step S14 and the update of the target route is completed.
- the predetermined time is set to 0.5 seconds, for example, but the predetermined time is not limited to this value, and may be a value different from this value.
- step S16 If it is determined that the target route has been updated (YES in step S16), the travel control ECU 14 performs vehicle travel control based on the new target route stored in the memory of the target route generation ECU 12 or the like (step S16). S18).
- the traveling control ECU 14 ends the current section stored in the memory of the target route generation ECU 12 or the like. Is acquired as the target vehicle speed at the end point E1 of the section L1 (step S20).
- Examples of cases where the calculation and update of the target route do not end within a predetermined time include, for example, when map information from the navigation system 24 cannot be acquired properly, or there are many intersections and curves in the section from the route update point C1 to the end point E2. For example, the map information is complicated and it takes time to calculate.
- the traveling control ECU 14 performs traveling control of the vehicle based on the acquired target vehicle speed Vp at the end point of the current section (step S20). Specifically, the travel control ECU 14 performs vehicle travel control so that the vehicle speed smoothly reaches the target vehicle speed Vp at the end point E1 of the section L1, starting from the actual vehicle speed of the current vehicle.
- FIG. 5 shows vehicle travel control in the section L1 (section from the end point E0 of the section L0 to the end point E1 of the section L1) by the travel control device 10 of the present embodiment.
- the target route target vehicle speed
- the vehicle travel control is performed based on the target vehicle speed of the end point E1 of the section L1 set at the route update point C0 of the section L0. Done.
- step S12 in the setting of the target vehicle speed of the end point E1 of the section L1 executed at the route update point C0 of the section L0 (step S12), if it is determined that the stop is necessary at the end point E1 of the section L1, the section L1 Travel control is performed so that the vehicle speed becomes 0 (stop) at the end point E1 (see vehicle speed profile Pa). Further, for example, in the setting of the target vehicle speed, when it is determined that deceleration to the vehicle speed V1 is necessary at the end point E1 of the section L1, the travel control is performed so that the vehicle speed is reduced to V1 at the end point E1 of the section L1. Is performed (see vehicle speed profile Pb).
- the target vehicle speed at the end point of the next section is set based on the stop point and the deceleration point of the section after the end point. For this reason, unnecessary deceleration can be prevented, and it is possible to reduce the uncomfortable feeling that the user feels when updating the target route.
- the target route generation ECU 12 (target route generation device) sets the target route for controlling the vehicle traveling in a predetermined section (for example, the section L2) as a route update point (predetermined point).
- the target vehicle speed used when the target route calculation unit 32 (generation unit) generated at the timing of (3) and the target route calculation unit 32 (generation unit) cannot generate the target route at the route update point (predetermined timing).
- An end point vehicle speed setting unit 30 (setting unit) for presetting a target vehicle speed at an end point (for example, end point E1) (section end point) of a section in which the vehicle is currently traveling (for example, section L1).
- the unit 30 sets the target vehicle speed based on the map information (road information) in a predetermined section (for example, the section L2). Accordingly, it is possible to provide a target route generation ECU 12 (target route generation device) that reduces a sense of discomfort that the user feels when updating the target route.
- the target route generation ECU 12 (target route generation device) reaches the position before the end point of the section or the end point of the section based on the position information of the vehicle by a predetermined distance of the end point of the section (for example, the end point E1 of the section L1).
- a route update timing determination unit 28 (determination unit) that determines a timing at which a remaining time until a position (predetermined position) where the remaining time is equal to or less than a predetermined time as a route update point (predetermined timing) may be further provided. Thereby, a target route can be generated at a timing when the vehicle reaches a predetermined position.
- the predetermined section (for example, the section L2) includes a section next to the section in which the vehicle is currently traveling (for example, the section L1), and the target path calculation unit 32
- the (generation unit) has a predetermined remaining time until the vehicle reaches the position or the end point of a section that is a short distance from the end point (for example, the end point E1 of the section L1) of the section where the vehicle is currently traveling (for example, the end point E1 of the section L1).
- a target route for a predetermined section (for example, section L2) may be generated.
- the target route of the next section can be generated at the timing when the vehicle reaches the predetermined position of the section where the vehicle is currently traveling.
- the end vehicle speed setting unit 30 (setting unit) travels in a section (for example, section L0) before the section (for example, section L1) in which the vehicle is currently traveling.
- the target vehicle speed may be set while the vehicle is running. Thereby, even when the target route calculation unit 32 (generation unit) cannot generate the target route at the route update point (predetermined timing), the target vehicle speed set in advance in the previous section can be used.
- the end point vehicle speed setting unit 30 (setting unit) is used as a vehicle stop point or deceleration point in a predetermined section (for example, section L2) in the map information (road information). Based on this, the target vehicle speed may be set in advance. Thereby, the target vehicle speed at the section end point of the currently traveling section can be appropriately set according to the stop point or the deceleration point of the vehicle in the predetermined section.
- the travel control apparatus 10 controls the travel of the vehicle based on the target route generation ECU 12 (target vehicle speed generation device) and the target route generated by the target route generation ECU 12. And a control ECU 14 (control device). Accordingly, it is possible to provide the travel control device 10 that reduces a sense of discomfort felt by the user when updating the target route.
- the travel control ECU 14 sets the target vehicle speed when the target route calculation unit 32 (generation unit) cannot generate the target route at the route update point (predetermined timing) (NO in step S16 in FIG. 4). Based on this, traveling of the vehicle may be controlled. Thus, even when the target route calculation unit 32 (generation unit) cannot generate the target route at the route update point (predetermined timing), the traveling of the vehicle can be controlled based on the preset target vehicle speed.
- the travel control ECU 14 determines at least the end point (for example, end point E1) of the section (for example, section L1) in which the vehicle is currently traveling based on the target vehicle speed (for example, the vehicle speed profile Pa, Pb, Pc) ( The traveling of the vehicle up to the end point of the section may be controlled.
- the target route calculation unit 32 generation unit
- the traveling of the vehicle can be controlled based on a preset target vehicle speed.
- the travel control ECU 14 controls the travel of the vehicle in at least a part of a predetermined section (for example, the section L2) based on the target vehicle speed (for example, the vehicle speed profile Pa, Pb, Pc). Also good.
- the target route calculation unit 32 generation unit
- the end point for example, the section L1 in which the vehicle is currently traveling (for example, the section L1)
- the end point E1) section end point
- the travel of the vehicle can be controlled based on a preset target vehicle speed.
- the travel control ECU 14 when the target route calculation unit 32 (generation unit) cannot generate the target route within a predetermined time at the route update point (predetermined timing) (NO in step S16 of FIG. 4).
- the traveling of the vehicle may be controlled based on the target vehicle speed. Thereby, it is possible to easily determine the case where the target route calculation unit 32 (generation unit) cannot generate the target route at the route update point (predetermined timing).
- step S10 when it is determined that the route update point has been passed (YES in step S10), the target vehicle speed is set (step S12) and the target route is calculated (step S14). Yes. Further, after the calculation of the target route is started, it is determined whether or not the calculation is completed within a predetermined time (step S16). However, a route update start point may be set in advance at a position separated from the route update point by a predetermined distance before the route update point. In this case, when it is determined that the vehicle has passed the route update start point, setting of the target vehicle speed (step S12) and calculation of the target route (step S14) are started, and is the target route updated at the route update point?
- step S16 it is determined (step S16). In this case, after the vehicle has passed the route update start point, it is determined whether or not the calculation of the target route has been completed within a predetermined time. In addition to updating to the newly calculated target route, when the calculation of the target route is not completed, travel control based on the set target vehicle speed may be performed at the route update point.
- step S12 After setting the target vehicle speed Vn at the end point of the next section (step S12), calculation of the target route (step S14) and determination of whether or not the target route has been updated. (Step S16), travel control based on the target route (Step S18), and travel control based on the target vehicle speed Vp at the end point of the current section (Step S20) are performed. However, the order of these processes may be changed as appropriate.
- step S14 calculation of a target route (step S14), determination of whether the target route has been updated (step S16), travel control based on the target route (step S18), and travel control based on the target vehicle speed at the end point of the current section ( The process of step S20) may be performed before the setting of the target vehicle speed at the end point of the next section (step S12).
- step S20 the travel control ECU 14 reads the target vehicle speed at the end point of the current section stored in the memory of the target route generation ECU 12, and the end point
- the vehicle speed setting unit 30 sets the target vehicle speed at the end point of the next section (step S12).
- the vehicle when setting the target vehicle speed for the end point E2 of the next section L2, if the section L3 includes a deceleration point, the vehicle is decelerated so as to have a predetermined vehicle speed at the end point E2 of the section L2. I do.
- the degree of deceleration may be changed according to the position of this deceleration point in the section L3. For example, when the deceleration point is separated from the end point E2 by a predetermined distance or more, the degree of deceleration may be decreased so that the vehicle speed is higher than the predetermined vehicle speed at the end point E2 of the section L2. Further, the degree of deceleration to the end point E2 of the section L2 may be reduced as the distance from the end point E2 to the deceleration point increases.
- the end point vehicle speed setting unit 30 sets the end point of the section (for example, the end point E1 of the section L1 or the end point E2 of the section L2) (section
- the target vehicle speed may be set in advance based on the distance from the end point) to a stop point or deceleration point of the vehicle in a predetermined section (for example, section L2 or section L3).
- the target vehicle speed at the end point of the currently traveling section can be appropriately set according to the distance from the end point of the section to the stop point or deceleration point of the vehicle in the predetermined section.
- step S16 when it is determined that the calculation and update of the target route has not ended within a predetermined time (NO in step S16), the traveling control ECU 14 determines the current section. Vehicle travel control is performed based on the target vehicle speed Vp at the end point (step S20). At this time, when it is determined that the calculation and update of the target route are not completed within the predetermined time (NO in step S16), the calculation of the target route by the target route calculating unit 32 may be stopped, The calculation of the target route by the route calculation unit 32 may be continued.
- the traveling control ECU 14 decelerates to the end point of the section according to the remaining time.
- the degree may be changed. For example, when the remaining time is shorter than a predetermined time (for example, 1 second), even if the target vehicle speed Vp at the end point of the current section is 0 (stopped), it is less than the degree of deceleration when the vehicle is stopped.
- the vehicle traveling control may be performed with a small degree of deceleration. That is, when the remaining time is shorter than the predetermined time, the vehicle travel control may be performed with a deceleration degree smaller than the deceleration degree when the vehicle is decelerated to the target vehicle speed Vp at the end point of the current section.
- the travel control ECU 14 (control device) is configured so that the target route calculation unit 32 (generation unit) cannot generate the target route at the route update point (predetermined timing) (step of FIG. 4).
- the target route calculation unit 32 generation unit
- the target vehicle speed is set to a deceleration degree smaller than the deceleration degree when decelerating to the target vehicle speed. May be changed to control the running of the vehicle.
- the vehicle travel can be controlled by changing the target vehicle speed so as to reduce the uncomfortable feeling felt by the user when updating to the target route.
- the end vehicle speed setting unit 30 sets the target vehicle speed at the end point E2 of the next section L2 (step S12).
- the target vehicle speed set by the end point vehicle speed setting unit 30 may be set as a vehicle speed value at the end point E2 of the section L2, or may be set as a time function (vehicle speed profile) of the vehicle speed up to the end point E2 of the section L2. Good.
- the end vehicle speed setting unit 30 When the target vehicle speed is set as the vehicle speed profile, the end vehicle speed setting unit 30 generates a vehicle speed profile (for example, any one of the vehicle speed profiles Pa, Pb, and Pc shown in FIG. 5) in step S12.
- the traveling control ECU 14 performs traveling control of the vehicle based on the generated vehicle speed profile.
- the end vehicle speed setting unit 30 may generate a vehicle speed profile (for example, any one of the vehicle speed profiles Pa, Pb, and Pc shown in FIG. 5) based on the value of the vehicle speed.
- the travel control ECU 14 performs vehicle travel control based on the generated vehicle speed profile.
- the target route calculation unit 32 sets the target route from the route update point C1 of the section L1 to the end point E2 of the section L2 in step S14.
- the target route may be calculated based on the vehicle speed value. In this case, if the calculation and update of the target route from the route update point C2 of the section L2 to the end point of the section L3 is not completed in the section L2, the vehicle travel control is continued based on the currently used target route.
- the autonomous traveling control by the traveling control ECU 14 is performed, but the generation of the target route of the present application is also used when complete autonomous traveling control is not performed or when autonomous traveling control is not performed at all. be able to.
- the target route generated by the target route generation ECU 12 may be simply notified to the driver, or the driving condition for achieving the generated target route may be notified to the user.
- driving assistance that supports driving of the user (driver) is performed.
- driving assistance can also be performed by performing only acceleration / deceleration or performing only steering by the traveling control device 10.
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Abstract
Description
実施形態に係る走行制御装置10について図1~図5を用いて説明する。
以上、走行制御装置10について詳細に説明したが、走行制御装置10は上記した実施形態に限定されるものではない。また、本発明の主旨を逸脱しない範囲において、種々の改良や変更をしてもよいのはもちろんである。
図4に示すように、本実施形態では、経路更新ポイントを通過したと判定する場合に(ステップS10においてYES)、目標車速の設定(ステップS12)や目標経路の演算(ステップS14)を行っている。さらに、目標経路の演算を開始した後、所定時間内に演算が終了したかどうかを判定している(ステップS16)。しかしながら、経路更新ポイントの手前に、経路更新ポイントと所定距離だけ離れた位置に経路更新開始ポイントを予め設定しておいてもよい。この場合、車両が経路更新開始ポイントを通過したと判定する場合に、目標車速の設定(ステップS12)や目標経路の演算(ステップS14)を開始し、経路更新ポイントにおいて目標経路が更新されているかどうかを判定(ステップS16)してもよい。またこの場合、車両が経路更新開始ポイントを通過した後、所定時間内に目標経路の演算が終了しているかどうかを判定し、目標経路の演算が終了している場合には、経路更新ポイントにおいて、新たに演算された目標経路への更新を行うとともに、目標経路の演算が終了していない場合には、経路更新ポイントにおいて、設定された目標車速に基づく走行制御を行うようにしてもよい。
図4に示すように、本実施形態では、次の区間の終点の目標車速Vnの設定(ステップS12)を行った後に、目標経路の演算(ステップS14)、目標経路が更新されたかどうかの判定(ステップS16)、目標経路に基づく走行制御(ステップS18)、および現在の区間の終点の目標車速Vpに基づく走行制御(ステップS20)の処理が行われている。しかしながら、これらの処理の順番は、適宜変更されてもよい。例えば、目標経路の演算(ステップS14)、目標経路が更新されたかどうかの判定(ステップS16)、目標経路に基づく走行制御(ステップS18)、および現在の区間の終点の目標車速に基づく走行制御(ステップS20)の処理は、次の区間の終点の目標車速の設定(ステップS12)の前に行ってもよい。この場合、現在の区間の終点の目標車速に基づく走行制御(ステップS20)において走行制御ECU14が目標経路生成ECU12のメモリなどに保存されている現在の区間の終点の目標車速を読み出した後、終点車速設定部30が次の区間の終点の目標車速の設定(ステップS12)を行う。このため、目標経路生成ECU12のメモリに現在の区間の終点の目標車速と次の区間の終点の目標車速とを別々に保存しておく必要がなく、単にこのステップS12で新たに設定した目標車速を上書きで保存していくようにすればよい。
図4を用いて説明したように、本実施形態では、次の区間L2の終点E2の目標車速を設定する際に、区間L3が停止ポイントを含む場合には、区間L2の終点E2の目標車速を0(停止)と設定している。しかしながら、区間L3におけるこの停止ポイントの位置に応じて減速度合いを変更してもよい。例えば、この停止ポイントが終点E2から予め定めた所定距離以上離れている場合には、区間L2の終点E2では停止せずに所定の目標車速で走行制御されてもよい。また、終点E2から停止ポイントまでの距離が大きくなるほど区間L2の終点E2までの減速度合いを小さくするようにしてもよい。
図4を用いて説明したように、本実施形態では、目標経路の演算および更新が所定時間以内に終了していないと判定する場合(ステップS16においてNO)、走行制御ECU14は、現在の区間の終点の目標車速Vpに基づいて車両の走行制御を行う(ステップS20)。この際、目標経路の演算および更新が所定時間以内に終了していないと判定する場合(ステップS16においてNO)には、目標経路演算部32による目標経路の演算を停止してもよいし、目標経路演算部32による目標経路の演算を継続してもよい。目標経路演算部32による目標経路の演算を継続する場合であって、演算および更新終了までの残り時間が取得できる場合には、走行制御ECU14は、この残り時間に応じて区間の終点までの減速度合いを変更してもよい。例えば、残り時間が所定の時間(例えば、1秒)よりも短い場合には、現在の区間の終点の目標車速Vpが0(停止)であっても、車両を停止する場合の減速度合いよりも小さい減速度合いで車両の走行制御を行ってもよい。すなわち、残り時間が所定の時間よりも短い場合には、車両を現在の区間の終点の目標車速Vpに減速する場合の減速度合いよりも小さい減速度合いで車両の走行制御を行ってもよい。
図4を用いて説明したように、本実施形態では、終点車速設定部30は、次の区間L2の終点E2における目標車速を設定する(ステップS12)。終点車速設定部30で設定される目標車速は、区間L2の終点E2における車速の値として設定されてもよいし、区間L2の終点E2までの車速の時間関数(車速プロファイル)として設定されてもよい。目標車速が車速プロファイルとして設定される場合には、終点車速設定部30は、ステップS12において車速プロファイル(例えば、図5に示す車速プロファイルPa、Pb、Pcのいずれか)を生成する。走行制御ECU14は、ステップS20において、生成された車速プロファイルに基づいて車両の走行制御を行う。
12 目標経路生成ECU
14 走行制御ECU
28 経路更新タイミング判定部
30 終点車速設定部
32 目標経路演算部
Claims (12)
- 所定の区間で車両を走行制御するための目標経路を、所定のタイミングにおいて生成する生成部と、
前記所定のタイミングにおいて前記生成部が前記目標経路を生成できない場合に用いられる目標車速であって、前記車両が現在走行中の区間の区間終点における目標車速を予め設定する設定部と、
を備え、
前記設定部は、前記所定の区間における道路情報に基づいて前記目標車速を設定する、
目標経路生成装置。 - 前記車両の位置情報に基づいて、前記車両が所定位置に到達するタイミングを前記所定のタイミングとして判定する判定部をさらに備える、
請求項1に記載の目標経路生成装置。 - 前記所定の区間は、前記車両が現在走行中の区間の次の区間を含み、
前記生成部は、前記車両が現在走行中の区間の所定位置に到達する場合に、前記所定の区間の前記目標経路を生成する、
請求項1または2に記載の目標車速生成装置。 - 前記設定部は、前記車両が現在走行中の区間の前の区間を走行している間に前記目標車速を設定する、
請求項1~3のいずれか1項に記載の目標車速生成装置。 - 前記設定部は、前記道路情報における前記所定の区間の前記車両の停止ポイントあるいは減速ポイントに基づいて前記目標車速を予め設定する、
請求項1~4のいずれか1項に記載の目標車速生成装置。 - 前記設定部は、前記区間終点から前記所定の区間の前記車両の前記停止ポイントあるいは前記減速ポイントまでの距離に基づいて前記目標車速を予め設定する、
請求項5に記載の目標車速生成装置。 - 請求項1~6のいずれか1項に記載の目標車速生成装置と、
前記目標車速生成装置が生成した前記目標経路に基づいて、前記車両の走行を制御する制御装置と、
を備える走行制御装置。 - 前記制御装置は、前記所定のタイミングにおいて前記生成部が前記目標経路を生成できない場合に、前記目標車速に基づいて前記車両の走行を制御する、
請求項7に記載の走行制御装置。 - 前記制御装置は、前記目標車速に基づいて少なくとも前記区間終点までの前記車両の走行を制御する、
請求項7または8に記載の走行制御装置。 - 前記制御装置は、前記目標車速に基づいて前記所定の区間の少なくとも一部の区間における前記車両の走行を制御する、
請求項7~9のいずれか1項に記載の走行制御装置。 - 前記制御装置は、前記所定のタイミングにおいて所定時間以内に前記生成部が前記目標経路を生成できない場合に、前記目標車速に基づいて前記車両の走行を制御する、
請求項7~10のいずれか1項に記載の走行制御装置。 - 前記制御装置は、前記所定のタイミングにおいて前記生成部が前記目標経路を生成できない場合であっても、所定時間以内に前記生成部が前記目標経路を生成できる場合には、前記目標車速を変更して前記車両の走行を制御する、
請求項7~11のいずれか1項に記載の走行制御装置。
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RU2017127528A RU2671602C1 (ru) | 2015-01-05 | 2015-06-30 | Устройство формирования целевого маршрута и устройство управления приведением в движение |
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CN108973681A (zh) * | 2017-05-31 | 2018-12-11 | 丰田自动车株式会社 | 车辆控制装置 |
RU2707855C1 (ru) * | 2017-11-17 | 2019-11-29 | Тойота Дзидося Кабусики Кайся | Система автономного вождения (варианты) |
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CN107107750A (zh) | 2017-08-29 |
EP3243686A4 (en) | 2018-08-08 |
CA2973113C (en) | 2019-03-05 |
RU2671602C1 (ru) | 2018-11-02 |
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US20170351262A1 (en) | 2017-12-07 |
MX2017008861A (es) | 2017-10-25 |
KR101850669B1 (ko) | 2018-05-31 |
MX358047B (es) | 2018-08-03 |
JP6315107B2 (ja) | 2018-04-25 |
KR20170085134A (ko) | 2017-07-21 |
BR112017014516B1 (pt) | 2023-01-17 |
BR112017014516A2 (pt) | 2018-01-16 |
CA2973113A1 (en) | 2016-07-14 |
US10001782B2 (en) | 2018-06-19 |
EP3243686B1 (en) | 2021-05-26 |
JPWO2016110733A1 (ja) | 2017-10-26 |
CN107107750B (zh) | 2019-10-01 |
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